• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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  • 优先权
    • 专利摘要:
    Welding device (1) comprising a welding unit (2) for welding a workpiece (W) operated by a welder (0) and a welding control unit (3), the welding control parameters (SSP) of the welding unit (2) in response to control commands, which are generated by a welding assistance system (4) by evaluating a voice dialog conducted by the welding assistance system (4) with the welder (U).
    公开号:AT514655A1
    申请号:T628/2013
    申请日:2013-08-05
    公开日:2015-02-15
    发明作者:Harald Langeder；Manfred Wittmann
    申请人:Fronius Int Gmbh；
    IPC主号:
    专利说明:

    Welding device with welding assistance system
    The invention relates to an apparatus and a method for welding a workpiece with the assistance of a welding assistance system.
    A welding device or a welding device makes it possible to add objects or workpieces by heat development cohesively, to coat workpieces or components or to break a solid homogeneous object or a workpiece into several individual parts. With the help of welding devices, a wide variety of components or workpieces can be processed by the action of heat, whereby the components can be made of metal or plastic, for example. There are various types of welding equipment, especially autogenous welders, arc welders, metal arc welding equipment or ultrasonic welding equipment.
    During arc welding, an arc is created between a wire electrode and the workpiece to be welded. The workpiece is heated by the arc and the wire electrode is melted. The arc can be created by applying a DC or AC current.
    The electric arc between the consumable melting filler wire electrode and the workpiece is used as a heat source for welding. Due to the high temperature of the arc, the material is melted at the weld. Welding current transformers with or without welding rectifier, welding transformer or welding inverter can be used as welding power sources. Depending on the application and electrode type, direct current or alternating current can be supplied to the consumable wire electrode. The melting of the wire electrode is preferably compensated by continuous tracking so that the arc length remains approximately constant.
    In gas shielded metal arc welding, a protective gas additionally protects the weld from exposure to the surrounding atmospheric air. In particular, an oxidation of the weld can be prevented by such a protective gas. In gas metal arc welding as well, a consumable wire electrode is used as filler material. The protective gas protects the liquid metal under the arc from oxidation, which would weaken the weld on the workpiece. The molten at the wire electrode material is drop-shaped over the workpiece and fuses there to form a weld. The protective gas flows from a nozzle surrounding the wire electrode or the welding wire and thus protects the arc and the molten bath from the atmospheric ambient air. The supplied welding wire can be unwound, for example, from a supply reel and is usually transported by a guide tube.
    In spot welding, a weld joint is made by a selective heat input without an arc, as is well known in the art.
    The various welding apparatuses have in common that a welding unit is driven in welding a workpiece via a welding control unit that outputs one or more welding control parameters to the welding unit, the welding control unit being operated by a welder or user via a user interface the welding device is operated. Different welding control parameters can be set and if necessary also displayed via the user interface. In accordance with the set welding control parameters, a welding process is performed on the workpiece. For example, a user may enter different functions using function keys. The welding of objects or workpieces usually requires a lot of experience of the user or welder in conventional welding equipment in order to produce a welded seam. Therefore, it is necessary to have a user
    Welders for different welding processes or welding processes. Despite considerable training effort, it is not possible with conventional welding devices in many cases, give the user or welder in the available time the necessary knowledge 2ü, so that it produces a proper weld. In particular, with different welding processes to be performed by the same welder or user, it is difficult to provide a welder or user with the necessary knowledge to carry out the different welding processes with reasonable effort and in justifiable 2eit. Even experienced welders with a relatively high level of knowledge also avoid avoidable welding errors in conventional welding devices or welding devices. In conventional welding devices, therefore, the quality of each welded workpiece is variable depending on the knowledge and experience of the welder and in many cases too low. This is also the case due to the variety of welding applications and the large external influences on the welding process.
    It is therefore an object of the present invention to provide a device and a method for welding a workpiece, in which a sufficient quality of the welded workpiece can be ensured even for users with little knowledge and experience.
    This object is achieved by a welding device with the features specified in claim 1.
    The invention accordingly provides a welding apparatus having a welding unit for welding a workpiece operated by a welder and a welding control unit which sets welding control parameters of the welding unit in response to control commands issued by a welding assistance system by evaluating one of them Welding assistance system with the welder-led speech dialogue and / or gestures are generated.
    In addition to a general increase in the quality of the workpiece to be welded in the welding process, the welding device according to the invention also offers the advantage that the variation or variance quality of the produced welded workpieces is reduced. The welded workpieces therefore have a more uniform quality than is possible with conventional welding machines. It is also advantageous that the welder is also trained. Furthermore, it is advantageous that the welding assistance system can distinguish or recognize which welding skills the user has and / or whether the user knows the device or not. This means that a user can, for example, be a professional in terms of welding skills but is unfamiliar with the welding machine or unfamiliar with its operation. Accordingly, the support is adapted by the welding assistance system.
    In one possible embodiment of the welding device according to the invention, the welding assistance system is connected to a speech recognition unit.
    In one possible embodiment, the speech recognition unit recognizes, via a microphone connected thereto, a naturally spoken language of the welder, who carries out the welding process or the welding process.
    In another possible embodiment of the welding device according to the invention, the welding assistance system is connected to a welder database, in which the level of knowledge of a different welding process to be performed on the workpiece is stored for different welders.
    In another possible embodiment of the welding device according to the invention, the identity of the welder, who welds the workpiece to be machined in the welding process, is recognized by the welding assistance system on the basis of the naturally spoken language input in the microphone.
    In an alternative embodiment of the welding device according to the invention, the identity of the welder who welds the workpiece to be machined in the welding process is detected or entered into the welding assistance system via a user interface of the welding device.
    In another possible embodiment of the welding device according to the invention, the speech dialogue conducted with the welder or user is controlled by the welding assistance system depending on the level of knowledge of the respective welder, which is read by the welding assistance system from the welder database.
    In one possible embodiment of the welding device according to the invention, the welding assistance system is connected to at least one loudspeaker via which the welding assistance system outputs speech fragments or speech sequences generated in accordance with the controlled speech dialogue to the welder.
    In one possible embodiment of the welding device according to the invention, the speech fragments of the controlled speech dialogue are generated as a function of keywords which are recognized by the sweat assistance system during the evaluation of the speech dialogue with the welder.
    In one possible embodiment of the welding device according to the invention, a speech fragment output to the welder comprises a command directed to the welder or a recommendation directed to the welder to perform an action during the welding process.
    In a further possible embodiment of the welding device according to the invention, the language fragment generated by the welding assistance system has a question addressed to the welder with regard to a property or a state of the workpiece to be machined or of the welding process.
    In a further possible embodiment of the welding device according to the invention, the welding process carried out on the workpiece is monitored by sensors of the welding device which supply sensor data indicating a current state of the welding process and / or of the workpiece.
    In a further possible embodiment of the welding device according to the invention, the welding assistance system evaluates the sensor data obtained from the sensors and generates based on the evaluated sensor data speech fragments for the conducted with the welder speech dialogue and / or control commands for the welding control unit, which control parameters of the welding unit in dependence set generated control commands.
    In a further possible embodiment of the welding device according to the invention, the welding assistance system is integrated in a housing of the welding device.
    In another possible embodiment of the welding device according to the invention, the welding assistance system is connected to the welding control unit of the welding device via a wireless or wired interface and a data network.
    In another possible embodiment of the welding device according to the invention, a welding control parameter output by the welding control unit is read from and stored on a stored characteristic which indicates a function of the respective welding control parameter as a function of at least one input variable in dependence on the at least one input variable the welding unit is output, wherein the input variable for the characteristic is contained in a control command, which is generated by the welding assistance system by evaluation of the conducted with the welder speech dialogue and delivered to the welding control unit.
    In one possible embodiment of the welding device according to the invention, the welding control parameters are adjustable by the welding control unit.
    The invention further relates to a method for welding a workpiece having the features specified in claim 15.
    The invention accordingly provides a method for welding a workpiece by a welding unit, wherein a speech dialog carried out by the welder operating the welding unit is evaluated by a welding assistance system for generating control commands for a welding control unit which, depending on the control commands generated, generates welding instructions. Sets control parameters of the welding unit.
    In the following, possible embodiments of the welding device according to the invention and of the method according to the invention for welding a workpiece by a welding unit will be explained in more detail with reference to the attached figures.
    Show it:
    Fig. 1 is a block diagram showing a possible embodiment of the welding device according to the invention;
    FIG. 2 shows a further block diagram for illustrating a further exemplary embodiment of the welding device according to the invention; FIG.
    3 shows a further block diagram for illustrating a further exemplary embodiment of the welding device according to the invention;
    4 shows diagrams to illustrate the mode of operation of a possible implementation of the welding device according to the invention;
    5 shows a simple flow chart for illustrating a possible embodiment of the method according to the invention for welding a workpiece.
    As can be seen from FIG. 1, a welding device 1 according to the illustrated embodiment has a plurality of units. The workpiece W to be welded by the welding device 1 is indicated symbolically in FIG. 1 by a triangle. The welding apparatus 1 has a welding unit 2 for welding the workpiece W. The welding apparatus 1 is operated by a welder or user U who welds the workpiece W in a welding operation. The welding unit 2 may be, for example, a welding torch. In one possible embodiment, the welding torch may be connected to the welding control unit 3 of the welding device 1 via a mechanical coupling element and a hose package. With the welding control unit 3, welding control parameters SSP of the welding unit 2 are set so that welding with the welding torch can be performed. These welding control parameters SSP are, for example, at least one welding power and / or a welding wire feed and / or an arc length and / or an inert gas type and / or an inert gas quantity and / or a welding speed. In particular, the welding control unit 3 may include a power source controller which adjusts an electrical DC or AC current output to the welding unit 2.
    In the welding apparatus 1 according to the invention, in the exemplary embodiment shown in FIG. 1, one or more welding control parameters SSP set by the welding control unit 3 are set inter alia in response to control commands issued by a welding assistance system 4 of the welding apparatus 1 are generated. These control commands are generated or generated by the welding assistance system 4 by evaluating a voice dialog conducted by the welding assistance system 4 via an interface 5 with the welder U. The welding control parameters SSP can also be set via a conventional operating unit of the welding device 1. The setting of the welding control parameters SSP via the voice dialogue can thus also be provided as an addition to an operating unit. Accordingly, both settings can be active.
    Accordingly, the welding assistance system 4 must be activated. This is done, for example, by actuating a control element on the operating unit, actuating a pushbutton on the welding torch, with the welding torch performing a defined movement, with the identification being carried out on the welding apparatus, and / or the like.
    Essentially, in the same way, the assistance system 4 can be deactivated or a restart of the voice dialogue can be carried out if, for example, the voice dialogue does not produce the desired result, or if incorrect information has been provided or similar conditions exist.
    In the welding device 1, the welding assistance system 4 performs a targeted or guided speech dialogue with the welder U, wherein the welding assistance system 4 preferably has a memory to remember relationships in the course of conversation of the speech dialogue or save and these detected relationships in the at the user ü directed language issues. The welding assistance system 4 assists or assists the user U in carrying out his welding activity on the workpiece W. The welding assistance system 4 evaluates the speech dialogue conducted with the welder U and generates corresponding control commands for the welding control unit 3. This sets as a function of the control commands received the welding control parameters SSP of the welding unit 2.
    In one possible embodiment, the welding assistance system 4 illustrated in FIG. 1 is connected to a welder database in which, for various welders or users U, their knowledge of a welding process or welding process to be carried out on the workpiece W is stored. The welder database can be located in a local data memory of the welding device 1 or in a database connected to the welding device 1 via a data network. In one possible embodiment of the welding device 1 according to the invention, the identity of the welder or user U who welds the workpiece W to be machined in the welding process or welding process is input via the user interface S. For example, the input is made such that the user U is recognized via an ID card, password or the like. In one possible implementation, the user U is additionally authenticated with respect to the welding device 1 and then possibly also authenticated with regard to the welding process. In a further possible embodiment of the welding device 1 according to the invention, the identity of the welder or user U, who welds the workpiece W to be machined in a welding or welding process, is recognized by the welding assistance system 4 on the basis of a naturally spoken language entered into a microphone. For this purpose, the welding assistance system 4 is connected to a speech recognition unit, which recognizes, via a microphone, naturally spoken language of the welder or user ü-ie on the basis of voice parameters. With the recognition of the identity, permissions for settings on the welding device 1 can also be assigned accordingly.
    The welding assistance system 4 recognizes the identity U-ID of the welder or user and uses the welder database to determine the respective state of knowledge of the user or welder U with regard to the welding process or welding process to be performed on the workpiece W. The welding assistance system 4 detects, for example, whether the user U is an experienced welder or a beginner. In one possible embodiment of the welding device 1 according to the invention, the speech dialogue conducted with the welder or user is controlled by the welding assistance system 4 as a function of the level of knowledge of the respective welder. The level of knowledge during and / or after the speech dialogue is adjusted and stored accordingly in the welder database. For example, an experienced welder conducts a different speech dialogue than an inexperienced welder or beginner U2. A language dialogue with an experienced welder Ul is usually more targeted and shorter than a speech dialogue with an inexperienced welder U2. In one possible embodiment, the welding assistance system 4 acoustically outputs speech fragments to the user or welder U via a loudspeaker or headphones provided on the user interface 5, which fragments are generated by the welding assistance system 4 in accordance with the controlled speech dialogue. The generated speech fragments of the controlled speech dialog are preferably generated as a function of keywords that are recognized by the sweat assistance system 4 during the evaluation of the speech dialog conducted with the welder or user. At least according to the level of knowledge with regard to welding - ie experienced welders or beginners - and / or the welding device 1 - ie whether the welder knows the device or not - serve as keywords. For example, the assignment, whether the welder knows the device or not, based on the name for the parameters and / or states, which is usually dependent on the device manufacturer. The generated speech fragments output to the welder or user 0 may comprise, for example, commands or recommendations or questions that are addressed to the welder U. The commands or recommendations may include, for example, recommendations for the performance of an action or for the omission of an action before and / or during and / or after the welding process or welding process. However, recommendations can also be issued, for example, in relation to maintenance work, which may also influence the welding process. For example, a change of the contact tube in the welding torch can be recommended. The questions directed to the welder U have, for example, questions regarding a property and / or a state of the workpiece W to be machined or of the welding process.
    In one possible embodiment of the welding device 1 according to the invention, as shown in FIG. 1, the welding process carried out on the workpiece W is monitored by sensors of the welding device 1. These sensors provide sensor data which indicate or indicate a current state of the welding process or welding process and / or the workpiece W. In one possible embodiment of the welding device 1 according to the invention, the welding assistance system 4 evaluates the sensor data obtained from the sensors and generates it on the basis of the evaluated data
    In the case of one possible embodiment, the welding assistance system 4 can additionally generate control commands for the welding control unit 3 on the basis of the evaluated sensor data, which welding control parameters SSP of the welding unit 2 adjust accordingly.
    In the exemplary embodiment illustrated in FIG. 1, the welding assistance system 4 is integrated in a housing of the welding device 1. In an alternative embodiment, the welding assistance system 4 may also be connected to an interface with the welding control unit 3 via a data network.
    In one possible embodiment, the welding control unit 3 has access to a memory in which one or more characteristic curves for welding control parameters SSP are located. These welding control parameters SSP are, for example, a welding power, a welding wire feed, an arc length, a protective gas, an inert gas quantity, a welding speed, a base material, a welding wire diameter and / or other known parameters. The characteristics in the characteristic line memory for various welding control parameters SSP are shown schematically in FIG. 4. The characteristic curves each represent a function of a welding control parameter SSP as a function of at least one input variable. The characteristic curves illustrated in FIG. 4 are two-dimensional characteristic curves, in each case one welding control parameter SSP being determined by a variable V. In alternative embodiments, multidimensional characteristic curves or characteristic fields can also be stored in the memory, wherein a welding control parameter SSP depends on a plurality of variables V. In one possible embodiment of the welding device 1 according to the invention, the variables V for one or more stored characteristic curves are extracted from a control command which the welding control unit 3 receives from the welding assistance system 4. In one possible embodiment, this control command is generated by the welding system 4 by evaluating the speech dialogue conducted with the welder U and subsequently delivered to the welding control unit 3. For example, a welder or user can make comments in natural language in a speech dialogue with the welding assistance system 4, which enables the welding assistance system 4 to transfer one or more input variables V to the welding control unit 3 in a control command. For example, a welder or user U can specify a feed rate for welding at 5 m / min. This information or comment made in the speech dialogue by the welder or user U is recognized as a relevant variable V by the welding assistance system 4, in particular by means of existing keywords. This information is then output as an input variable V in a control command internally as a command to the welding control unit 3, which automatically sets a welding feed and various other or dependent therefrom welding control parameters SSP for the welding unit 2 based on the stored characteristics using the input variable. Accordingly, a plurality of welding control parameters are set in a stored characteristic, which are then adapted due to the speech dialogue to the application and / or the knowledge of the welder. In one possible embodiment, the original setting of the various input variables V can be based on the identity Ü-ID of the welder ü. In the characteristic curves illustrated in FIG. 4, for example, an initial working point AP0 for the various characteristic curves is set on the basis of the determined identity of the respective user or welder U. From the output working point AP0 can then be deviated in each case depending on the guided voice dialogue and the voice commands generated therefrom and in dependence on other input variables, such as sensor data, during the welding process. If, for example, the welder or user U identifies the welding parameters on the basis of the quality of the weld with a favorable setting for the respective welding operation, he / she can initiate the setting of the various welding control parameters SSP as a particularly suitable setting with a corresponding voice command and deposit it in the memory for another welding process as well as for later welding proce- dure. The starting work points AP shown in FIG. 4 for the various welding control parameters SSP can be set as a function of the detected identity Ü-ID of the user and additionally as a function of sensory parameters or sensor data, for example an ambient temperature T prevailing during the welding operation ,
    In one possible embodiment of the welding device 1 according to the invention, the speech dialogue conducted with the user U is logged or recorded by the welding assistance system 4. The recorded speech dialogue, which takes place during a welding process, can then be evaluated to determine a user behavior during the welding process. Furthermore, different sets of welding control parameters SSP and characteristic curves can be stored in a memory of the welding device 1 for different materials of a workpiece W to be welded. The sweat assistance system 4 follows the guided speech dialogue with the user and remembers the user behavior.
    In one possible embodiment, the welding control unit 3, in particular a power source control, transfers sensor data and / or welding control parameters SSP which are currently set back to the welding assistance system 4. The welding assistance system 4 can, after receiving sensor data and welding control parameters SSP Voice dialogue with the user U during the welding process vary. By way of example, the welding assistance system 4 can emit corresponding warnings or recommendations to the welder acoustically and / or optically at critical sensor values or critical welding control parameters SSP. The welding assistance system 4 also gives recommendations for welding and checks settings. Furthermore, the welding assistance system 4 in the case of erroneous or dangerous inputs or voice commands can alert the welder to the dangers and give him recommendations for more suitable settings with regard to individual welding control parameters SSP.
    2 shows a block diagram of a possible embodiment of the welding device 1 according to the invention. As can be seen from FIG. 2, the welding device 1 has a welding unit 2, which is controlled by a current source controller 3. The power source controller 3 receives commands or control commands from the welding assistance system 4. In the embodiment shown in FIG. 2, the welding assistance system 4 is connected to a voice recognition unit 6, which recognizes naturally spoken language of the welder U via a microphone 5A. In the exemplary embodiment illustrated in FIG. 2, the voice recognition unit 6 transmits voice commands, for example in the form of metadata or data, to the sweat assistance system 4. The welding assistance system 4 is also connected to a welder database 7, in which for various welders or users U their knowledge and experience treasure is saved with respect to a to be performed on the workpiece W welding process. The welder database (welder info) can also provide parameters for speech recognition to the speech recognition unit 6. In the exemplary embodiment illustrated in FIG. 2, the welding assistance system 4 is also connected to a database b2w. a database 8 is connected, in which a current state of the welding process or welding process (session info) can be stored. The welding assistance system 4 has access to the database 8 during this welding process or welding process. The welding assistance system 4 can acoustically voice fragments to the welder or user in the field via a loudspeaker 5C
    Submit the course of the speech dialogue. In addition, the welding assistance system 4 can provide information for the welder or user U via other output units, for example indicator lamps or optical displays 5B. For example, in Pig. 4 illustrated characteristic welding control parameters SSP, which are currently set, the welder b2w. Users are displayed during the welding process. The microphone 5A, the optical display 5B and the loudspeaker 5C are part of the user interface 5 shown in FIG. 1. In the exemplary embodiment shown in FIG. 2, a sensor system 9 is connected to the welding control unit or current source control 3, which sensor data is connected to the sensor Welding control unit 3 supplies.
    The sensor system 9 can also be connected to at least one further component of the welding device 1. This sensor data can be forwarded by the welding control unit 3 to the welding assistance system 4. In one possible embodiment, the welding assistance system 4 evaluates the sensor data obtained from the sensors and, on the basis of the evaluated sensor data, generates speech fragments for the speech dialogue conducted with the welder U. In addition, the welding assistance system 4 can also generate control commands in response to the sensor data and deliver them as commands to the welding control unit 3. The sensor data supplied by the sensors 9 can indicate a momentary state of the workpiece W or of the welding process or welding process. In addition, the sensor data may also include environmental parameters, such as ambient temperature.
    FIG. 3 shows a further exemplary embodiment of a welding device 1 according to the invention. In the exemplary embodiment shown in FIG. 3, the welding control unit 3 is connected to a remote welding assistance system 4 via a data interface 10 and a data network 11. The interface 10 may be a wireless or wired interface. The data network 11 may be, for example, a local operating network of an automation system. In addition, the data network 11 may also be a large-scale data network, for example the Internet. In this embodiment, the welding assistance system 4 may be implemented on one or more servers. In a further possible embodiment, a plurality of welding devices 1 are connected via a data network 11 to a common welding assistance system 4.
    5 shows a flow chart for illustrating a simple exemplary embodiment of the method according to the invention in conjunction with FIGS. 1 to 4. In a first step S1, a speech dialog conducted with the welder or user U is generated by the welding assistance system 4 for generating control commands evaluated for the welding control unit 3.
    In a further step S2, the welding control parameters SSP of the welding unit 2 are set in dependence on control commands which were generated by the welding assistance system 4 in step S1.
    With the welding device 1 according to the invention and the welding method according to the invention, the welding process can be assisted by a speech dialogue, which the welding assistance system 4 leads to the user U during the welding process. A corresponding dialog can be performed, for example, as an example. A welder or user Ü expresses first that he wants to weld a piece of aluminum sheet with a thickness of about 1.5 mm as a workpiece. The welding assistance system 4 then asks him which alloy has the aluminum sheet. The welder U calls the alloy. The welding assistance system 4 then indicates that the appropriate characteristic curve must be selected for this alloy. If necessary, it additionally gives the welder or user U the indication as to how the characteristic curve for the respective alloy is set at the user interface 5 of the welding device 1. In addition to this advice, the welding assistant tenzsystem 4 can also ask the welder how big the wire diameter is «The welder U can answer, for example, that the wire diameter is 1 mm. Then, the welding assistance system 4 issues a command or a control command to the power source controller 3 to set or select the corresponding welding control parameter SSP. After selecting or selecting the welding control parameter SSP, the welding assistance system 4 can then ask the welder which protective gas is to be used. If the welder is uncertain about the nature of the protective gas, he may ask, for example, in the case of the welding assistance system 4, which protective gas is suitable, for example, in the case of aluminum. The welding assistance system 4 recognizes the question and provides a suitable indication, for example that the inert gas must in each case be an inert gas, which inert gas may comprise, for example, argon, argon-helium mixtures or special gases and nitrogen. Thereupon, the user or welder U can select the shielding gas which seems suitable to him and, for example, select argon as protective gas. The welding assistance system 4 can then select a suitable characteristic curve for this protective gas in a further step.
    After this introductory speech dialogue, the actual welding process or welding process can begin. If the welder or user ü is not satisfied with the weld formed, he may criticize this in relation to the welding assistance system 4. For example, the welder U may indicate which welding operation did not work, and may give additional advice to the welding assistance system 4, for example that it has injected during the welding process and / or the weld has a conspicuous color, for example black. The welding assistance system 4 takes the hint of the welder ü that the weld has a black color, and recognizes where the problem may be and gives a corresponding recommendation. For example, the welding assistance system 4 the
    Inform the welder that he must control the amount of gas and / or that he is sure that he has turned on the protective gas. If, for example, the welder or user U recognizes that he has not accidentally turned on the protective gas, he can enter a corresponding voice command through the microphone 5a and order to open the protective gas. After unscrewing the protective gas, the welding assistance system 4 can give the user the indication that in the welding device 1 it is possible to control the amount of inert gas now by pressing a gas test button. Furthermore, it can be indicated that with the selected wire diameter of 1 mm, a protective gas quantity of 10 to 12 1 must be set. Then the welder or user U can make the appropriate setting or instruct acoustically and confirm the welding assistance system 4. The welding assistance system 4 can now indicate that the weld seam should now be correct and ask the user U to check this.
    The voice dialogue conducted between the welding assistance system 4 and the user U may vary depending on the type of welding problem that has occurred. In another scenario, for example, a user or welder U during the welding process tell the welding assistance system 4 that the weld is rather black and too little power is available. The welding assistance system 4 recognizes the occurrence of the welding problem on the basis of the input and then asks the user U to check the burner position due to the blackening of the weld seam. Furthermore, the welding assistance system 4 can give the user the indication that the specified workpiece W, which consists of aluminum, is basically welded in a piercing welding position. The user or welder ü can confirm the hint and ask if now the performance is increased. Subsequently, the welding assistance system 4 can generate the corresponding control command for the welding control unit 3 and inform the user U that the welding power has been increased.
    In a subsequent possible improvement of the weld, the welder or user can give the welding assistance system 4 the indication that the weld now looks good from its side. The welding assistance system 4 can, for example, then give the user U the hint that he should pay attention to use a sharp welding position and further increase the performance, since the weld may be too cold.
    Furthermore, the user U can establish, for example, that a final crater is too few and that too little material is available. The welding assistance system 4 then gives e.g. the indication that the settings for start and end craters are checked. If it is determined that the end crater time is off, then, for example, a end crater welding time and end crater power are programmed. If, for example, the welder or user U recognizes that the weld seam is too wide in his opinion, the welding assistance system 4 can indicate, for example, that if the weld seam is too wide, it is advisable to increase the welding speed, since the welder U is likely to increase the welding speed is welded slowly.
    As can be seen from the above-mentioned exemplary Sprachdialo gene, supports the welding assistance system 4 by evaluating the variable speech dialogue situational the user ü during the welding process, so that the quality of the weld is increased. The guided with the user U voice dialogue U can be performed depending on the level of knowledge of the welder. The speech dialogue with a beginner can differ considerably from a speech dialogue with an expert or experienced welder. For example, a speech dialogue conducted with an experienced welder is much more precise and shorter.
    A speech dialogue with an experienced welder ü may, for example, proceed as follows. A welder or user indicates "4T4M". The welding assistance system 4 acknowledges this input with the indication "set *. The welder or the user then gives a "four-stroke". or "special four-stroke" one. The welding assistance system 4 returns in response: "four-stroke is set". The welder can then specify, for example, "Starting current 150% for 0.3 sec". Thereupon, the welding assistance system 4 can make the remark that this is not possible with special four-stroke. Furthermore, the welder Ü can specify that he has set 15 1 argon as a protective gas. The welding assistance system 4 then makes the remark that the protective gas is controlled and set to 15 rpm. As can be seen from the exemplary speech dialogue mentioned above, the guided speech dialogue is thus much more precise and expedient in the case of an experienced welder U.
    The guiding of the speech dialogue is preferably carried out depending on the level of knowledge of the respective welder or user o. In one possible embodiment, the welder himself indicates his level of knowledge or identity U-ID. In a further possible embodiment of the welding device 1 according to the invention recognizes the welding device 1 based on the questions asked by the welder ü and his behavior during the welding process, whether it is the respective welder U to an experienced welder or a less experienced welder. If, for example, the welding assistance system 4 detects during the welding process that the welder ü is not an experienced welder contrary to his instructions, he can switch the previous speech dialogue to a speech dialogue suitable for an inexperienced welder or change accordingly.
    In one possible embodiment, the speech dialogue is conducted in a natural language selected by the welder, for example German or English. In another possible embodiment, the language is selected as a function of context data, for example, depending on the location of the welding device 1. If, for example, the welding device 1 is in Austria, German is selected as the dialog language. For example, if the welding device 1 is located in India, English is selected as the language of the speech dialogue.
    The microphone 5A shown in FIG. 2 and the loudspeaker 5C shown in FIG. 2 may, in one possible embodiment, be located in a helmet of the welder or user. In this embodiment, therefore, the user U has both hands free to carry out the welding operation. Other variants of the welding device 1 according to the invention are possible. For example, the speech signal received by the user may be processed, for example for sound suppression in workshops. Also, the output acoustic signal can be adjusted or amplified depending on the volume of the environment. In the exemplary embodiment illustrated in FIG. 2, the sweat assistance system 4 can recognize from the speech input a question of the welder or user and search for a corresponding answer within the internet or data network. With the welding assistance system 4, it is possible to enter a complete requirement with respect to a welding operation on the part of the welder, for example "material AlMg5 with 3 mm thickness and additional material 1.5 mm diameter". or similar. The welding control unit 3 or the power source automatically sets the correct setting or the correct welding control parameters SSP. Therefore, it is possible to specify that a weld has been made, but the weld is excessive and the burn-in is 20% too low. With the aid of the welding assistance system 4, the welding control unit 3 automatically corrects corresponding values or the welding control parameters SSP.
    Furthermore, it can be achieved with the welding device 1 according to the invention that, given a hand welding with a welding torch which contains, for example, a position sensor, in particular a gyrosensor, the welding assistance system 4 will give the user or welder U the appropriate indication from the position data or sensor data obtained can determine whether the welding process is a bit more piercing or whether welding is slower. Furthermore, the welder or user U has the opportunity to ask the welding assistance system 4 of the welding device for experience or tips, for example what has to be considered in an aluminum welding process, in particular if, for example, an AlSil2 alloy is welded.
    In one possible embodiment of the welding device 1 according to the invention, the welding assistance system 4 has access to a jargon-specific speech word estimate or vocabulary used by welders U during welding. The language entered by the user or user naturally includes spoken language, which is interpreted by the sweat assistance system 4 with regard to its syntax and semantics after speech recognition has taken place. In this case, recognized keywords from the jargon for the guidance of Sprachdia-logs can be detected by the welding assistance system 4. In addition, the speech dialogue can be guided by the welding assistance system 4 depending on context data, for example the current position or the next welding step to be performed within the welding process. Other possible context data include, for example, a time that is generated by a timer of the welding device 1. The sweat assistance system 4 may apply voice log models and tune further steps within the welding process within the voice dialogue with the user or welder. Furthermore, the welding assistance system 4 can access ontologies for the respective domain or the respective welding process. In one possible embodiment, the speech fragments read out from the language assistance system 4 are formed from synthesized speech. Furthermore, it is possible that also recorded messages are output. In addition to the pure speech input by the user U, in one possible embodiment the user can additionally enter commands into the welding device 1 via a keyboard. In one possible embodiment, the sweat assistance system 4 is implemented by daemon software. With the aid of the welding device 1 according to the invention, inexperienced welders or users U in particular can be specifically trained for various welding operations. The level of knowledge gradually increases with each welding process. While a relatively long and laborious dialogue with the user U is performed during the first welding operations, as the user becomes more and more aware of the language dialogue, it becomes increasingly more targeted and shorter. The welding device 1 according to the invention is suitable for a wide variety of welding devices, for example for arc welding devices.
    权利要求:
    Claims (14)
    [1]
    Claims 1. Welding apparatus (1) comprising a welding unit (2) for welding a workpiece (W) operated by a welder (U) and a welding control unit (3), the welding control parameters (SSP) in dependence of control commands, which are generated by a welding assistance system (4) by evaluation of a guided by the welding assistance system (4) with the welder (CJ) speech dialogue.
    [2]
    2. Welding apparatus according to claim 1, wherein the welding assistance system (4) to a speech recognition unit (6) is connected, which recognizes via a microphone (5A) naturally spoken language.
    [3]
    3. Welding apparatus according to claim 1 or 2, wherein the welding assistance system (4) to a welder database (7) is connected, in which for different welder (ü) their knowledge of a to be performed on the workpiece (W) welding process is stored.
    [4]
    Welding device according to one of the preceding claims 1 to 3, wherein the identity of the welder (U) welding the workpiece (W) to be machined in a welding process by means of the welding assist system (FIG. 4) is detected or via a user interface (5) in the welding device (1) is entered.
    [5]
    5. Welding device according to one of the preceding claims 1 to 4, wherein the guided with the welder (ü) speech dialogue by the welding assistance system (4) depending on the level of knowledge of the respective welder (ü) is controlled, which by the welding assistance system (4) welder database (7) is read,
    [6]
    6. Welding device according to one of the preceding claims 1 to 5, wherein the welding assistance system (4) via at least one speaker (5C) according to the controlled running voice dialogue generated speech fragments to the welder (U) outputs.
    [7]
    7. Welding device according to claim 6, wherein the generated speech fragments of the controlled running speech dialogue are generated in dependence on keywords that are recognized in the evaluation of the guided with the welder (U) speech dialogue by the welding assistance system {4).
    [8]
    8. A welding apparatus according to claim 6 or 7, wherein a generated and to the welder (ü) output language fragment to the welder (U) directed command or a recommendation to perform an action during the welding process and / or a welder (ü) directed question regarding a property or state of the workpiece to be machined (W) or the welding process has.
    [9]
    Welding device according to one of the preceding claims 1 to 8, wherein the welding process carried out on the workpiece (W) is monitored by sensors (9) of the welding device (1) which supply sensor data indicating a current state of the welding process and / or workpiece ( W).
    [10]
    10. Welding device according to claim 8, wherein the welding assistance system (4) evaluates the sensor data received from the sensors (9) and based on the evaluated sensor data speech fragments for the guided with the welder (U) voice dialogue and / or control commands for the welding control unit ( 3), which sets welding control parameters (SSP) of the welding unit (2) as a function of the generated control commands.
    [11]
    Welding apparatus according to one of the preceding claims 1 to 10, wherein the welding assistant 2 system (4) is integrated in a housing of the welding device (1) or via a data hub (11) and a wireless or wired interface (10) to the welding control unit (3) is linked.
    [12]
    12. Welding device according to one of the preceding claims 1 to 12, that the welding control parameters (SSP) of the welding control unit (3) are adjustable.
    [13]
    13. A method for welding a workpiece by a welding unit (2), wherein a with the the welding unit (2) operating welder (U) guided voice dialogue by a welding assistance system (4) for generating control commands for a welding control unit (3) is evaluated which sets welding control parameters (SSP) in dependence on the generated control commands.
    [14]
    14. The multi-welding apparatus (1) according to claim 1, wherein the welding assistance system (4) is connected to the welding control units (3) of the respective welding apparatuses (1) via a data network (11).
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    同族专利:
    公开号 | 公开日
    US20150034618A1|2015-02-05|
    DE102014215319A1|2015-02-05|
    CN104339069B|2017-06-16|
    AT514655B1|2020-04-15|
    CN104339069A|2015-02-11|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA628/2013A|AT514655B1|2013-08-05|2013-08-05|Welding device with assistance system|ATA628/2013A| AT514655B1|2013-08-05|2013-08-05|Welding device with assistance system|
    DE102014215319.0A| DE102014215319A1|2013-08-05|2014-08-04|Welding device with welding assistance system|
    CN201410379723.7A| CN104339069B|2013-08-05|2014-08-04|Welding equipment with welding accessory system|
    US14/452,115| US20150034618A1|2013-08-05|2014-08-05|Welding apparatus comprising a welding assistance|
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