• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a bending tool (3) for insertion into a tool holder (2). This comprises a tool body (4), a locking element (8) coupled to an actuating element (7) accessible outside the tool holder (2), with a locking lug (9) for securing the bending tool (3) in the tool holder (2) by engaging in a recess therein Recess, wherein a basic position of the actuating element (12) with a Entriegelungsstellungdes the locking element (16) and an actuating position of the actuating element (13) with a locking position of the locking element (15) corresponds. Furthermore, a tool position securing element (17), which is displaceably mounted in the tool body (4), has a connection for fixing the position of the tool body (4) with respect to a displacement direction (5) in the tool holder (2) in a securing position (18) projecting in relation to the tool body (4). manufactures. Both the locking element (8) and the tool position securing element (17) are coupled to the same actuating element (7).
    公开号:AT514078A4
    申请号:T50403/2013
    申请日:2013-06-20
    公开日:2014-10-15
    发明作者:
    申请人:Trumpf Maschinen Austria Gmbh；
    IPC主号:
    专利说明:

    1
    The invention relates to a bending tool for insertion into a tool holder and elements for securing this bending tool, as indicated in the independent claim 1.
    In bending tools versions are known in which the bending tool can be used by means of a quick-release system from below into the tool holder, whereby it does not have to be inserted laterally in this and is moved by moving into the intended position. There are also known bending tools, in which a securing element is provided which prevents lateral slipping in the tool holder in the untensioned state.
    From WO 2006/135835 a bending tool is known, which includes a locking element to be able to be inserted from below into a tool holder and also to be removed from the tool holder again down. This locking element is actuated by means of a push button, which is mounted laterally on the bending tool. In addition, a clamping element is designed to secure the bending tool used in the tool holder in the horizontal direction against slipping. The clamping element acts due to a lateral application of a force, and thus friction against the tool holder. The actuation of this securing element via a further actuating element, which is mounted laterally on the bending tool. Consequently, in order to insert a bending tool into the tool holder, both operating elements mounted on the side of the bending element must be pressed by the operator. 2/21 N2013 / 03600 2
    A disadvantage of the known design is that for insertion of the bending tool always both actuators must be pressed. Thus, the operator's freedom of action for additional actions and manipulations is extremely limited. Furthermore, it is considered disadvantageous that, if not both actuators are pressed simultaneously and completely, it may come to a one-sided jamming of the bending tool, whereby it can occur that the bending tool is inserted obliquely and thus in an undefined position in the tool holder. If the operator is now careless and lets go of the tool, it may cause the bending tool to fall and cause injury to the operator.
    The present invention has for its object to further develop a bending tool for rapid insertion into a tool holder so that it is easy and simple to use, and that any security risks are reduced as possible by unfavorable jamming. Even with automated production, it is absolutely necessary that a bending tool, which is used by a manipulator in the tool holder, is no longer unintentionally changed in its position in the tool holder after the insertion process. This is all the more necessary the more accurate the parts produced are.
    This object of the invention is achieved by the features or measures according to claim 1. In particular, the coupling of the tool position securing element and the locking element to a common actuator allows easy operation and handling of the bending tool. Thus it is achieved that the second hand of the operator can be used for other tasks.
    According to the invention, a bending tool is designed for insertion into a tool holder. This comprises a tool body, a locking element coupled to an actuating element accessible outside the tool receptacle and having a locking nose for securing the bending tool in the tool receptacle by engaging in a recess arranged therein, wherein a basic position of the actuating element with an unlocking position of the 3/21 N2013 / 03600 3
    Bar element and an actuating position of the actuating element corresponds to a locking position of the locking element. Furthermore, a tool position securing element displaceably mounted in the tool body is provided which, in a securing position projecting beyond the tool body, establishes a connection for fixing the position of the tool body with respect to a displacement direction in the tool receptacle. Both the locking element and the tool position securing element are coupled to the same actuating element.
    An advantage of the inventive design is that both a locking element is present, which secures the tool against falling out of the tool holder, and which can be moved away for easy removal of the tool from this tool holder, as well as a tool position securing element, which prevents the tool from slipping the tool holder secures. It is particularly advantageous here that both the locking element and the tool position securing element can be moved together by means of only one actuating element.
    Furthermore, it may be expedient that the tool position securing element is coupled via the locking element with the actuating element. The advantage here is that the locking element which is moved by the actuating element is used for transmitting the movement to the tool position securing element, and thus no further components are necessary. As a result, the simplest possible mechanical design is possible, which is inexpensive to produce, and is also less prone to error in the assembly of the parts.
    Alternatively it can be provided that both the tool position securing element and the locking element are coupled directly to the actuating element. The advantage here is that in the design of the locking element no consideration must be taken to the tool position assurance element to move this as stated above with the aid of the locking element. The locking element can thus be made very small in its extent. However, the shape of the tool-position locking device or the shape of the actuator must be reshaped so that they are in mechanical contact with each other.
    Furthermore, it may be expedient that the locking element and the tool position securing element are coupled to one another via a mechanical connection. The advantage here is that a mechanical connection manufacturing technology is easy to manufacture, and that this is also less error prone.
    Alternatively, it can be provided that the locking element and the tool position securing element are coupled to each other in motion by a substantially incompressible fluid. The advantage here is that no structural restrictions by transmission elements in the tool are necessary by the operation by means of a fluid. In this case, the transmission of force occurs via the fluid in that the actuating element transmits the force to the fluid via an active surface, thereby pressurizing it. The pressure of the fluid is transmitted via channels or lines in the bending tool on the active surfaces of the locking element or the tool position securing element and there applied thus a force which can be converted into a movement.
    In addition, it can be provided that the tool position securing element has a friction surface for producing a frictional connection with the tool holder. The advantage here is that the bending tool can be positioned in any position along the tool holder by making a non-positive connection between the bending tool and tool holder by means of a friction surface.
    Furthermore, it can be provided that the tool position securing element is biased by a spring element in the direction of the securing position. It is particularly advantageous in this case that thus in the unactuated state of the actuating element, the tool position securing element is in its securing position. Therefore, the actuating button of the actuating element 5/21 N2013 / 03600 5 must only be released in order to fix and secure the bending tool in its position.
    According to an advantageous development can be provided that the spring element is a leaf spring, which is oriented in the adjustment direction of the tool position securing element and by a, transverse to the longitudinal extent of the leaf spring applied force einknickbar and thus shortened. It is particularly advantageous here that the leaf spring can apply a very high working force along the longitudinal extent of the leaf spring in the almost fully extended state comparatively to a transverse actuation force. Thus, a good translation can be achieved, whereby the actuator can be so smooth that it can also be pressed by hand, and yet sufficient force can be applied to the tool position assurance element.
    Alternatively it can be provided that the spring element is formed by a coil spring. The advantage here is that a coil spring is easy to apply, and that the requirements for the accuracy of recording the tool position assurance element in the tool body of the bending tool are rather low. Furthermore, coil springs in the intended form of commercial products, which can be purchased inexpensively and easily.
    Furthermore, it can be provided that the tool position securing element in a recess between the two ends has an angled to a direction of movement of the tool position securing element surface, which is contacted by an actuating lug of the locking element or the actuating element. The advantage here is that it can be achieved by this measure, that a coil spring, or such a spring can be used, which applies a purely extending in the axial direction of force. Due to the angled surface, a translation of the force and the movement of the locking element is realized on the tool position securing element. 6/21 N2013 / 03600 6
    Also advantageous is an expression, according to which the tool position securing element is designed circular-cylindrical and is guided in a bore in the tool body. By this expression, a simple and inexpensive mass production is possible.
    For a better understanding of the invention, this will be explained in more detail with reference to the following figures.
    In each case, in a highly simplified, schematic representation:
    Fig. 1 is a perspective view of a bending tool which is received in the upper press beam;
    Fig. 2 is a perspective view of a bending tool;
    Figure 3 is a section through a bending tool, which is in a position in which it can be freely inserted into the tool holder.
    4 shows a section through a bending tool, which is in a position in which it is secured in the tool holder against displacement.
    Fig. 5 shows another embodiment of a bending tool in which a helical spring is used instead of a leaf spring for the locking mechanism.
    By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location. 7/21 N2013 / 03600 7
    1 shows a press beam 1, as well as a tool holder 2 attached thereto, with a recorded bending tool 3 in a perspective view. Particularly visible is the tool body 4, which engages in the bending process in the sheet to be bent. The bending tool 3 can be positioned in the tool holder 2 in the horizontal displacement direction 5. For this purpose, the bending tool 3 in the horizontal displacement direction 5 must be inserted laterally into the tool holder 2 of the press bar 1.
    Alternatively, it is also possible that the bending tool 3 is inserted in the vertical direction of insertion 6 in the tool holder 2. For this possibility to introduce the bending tool 3 in the tool holder 2, it is necessary that the bending tool 3 is constructed in such a way, as shown in the following FIG. By the elements described below, a trouble insertion of the bending tool 3 in the vertical direction of insertion 6 can be ensured.
    In the tool holder 2, a plurality of bending tools 3 can be positioned, which are of similar construction, and adjoin one another and thus form a long machining edge. Another possibility is that several different bending tools 3 are positioned in the tool holder 2. These different bending tools 3 are then used for various bending operations and can also be replaced individually. If bending tools 3 of different types are used for different working steps, then it is usual that they are arranged at a certain distance from each other.
    Fig. 2 shows a bending tool 3 in a perspective view. This clearly visible is the actuating element 7, which is coupled to the locking element 8. Also clearly visible is the locking lug 9 of the locking element 8, which is moved out of the tool body 4 and thus can engage in the tool holder 2. Also shown is a recess 10, also called gripping groove, which in the tool body 4 has a shape such that a manipulator for the bending tool change can engage in this recess, and thus equip the bending tool and can disarm. It is not mandatory that this recess 10 is formed in the form of a groove, but it is also conceivable that, for example, a simple bore is formed, in which a manipulator can intervene. This manipulator may be a robot arm, which is intended for handling the sheets to be bent. However, it is also possible that the manipulator is, for example, a backgauge device, which is used for the tool change.
    There are two ways in which a bending tool 3 can be equipped. On the one hand, the setting can be done manually, with an operator using the bending tool 3 in the tool holder 2. On the other hand, it is also possible that a manipulator uses the bending tool 3 in the tool holder 2. In both cases, the actuator 7 must be pressed to allow positioning of the bending tool 3 in the tool holder.
    3 shows a section through a bending tool 3 in a position of the actuating element 7 in which the bending tool 3 is moved straight into the tool body 4 in the vertical insertion direction 6. Here, the actuating element 7 is pressed into the tool body 4. Thus, the free movement of the bending tool 3 is ensured in the tool holder 2. Subsequently, the exact mechanisms will be described, which are set by the actuation of the actuating element 7 in force.
    There are various ways in which the actuator 7 can be operated. On the one hand, it is possible to use the bending tool 3 manually in the tool holder 2, wherein the actuating element 7 is pressed by a finger of the operator. On the other hand, in an automated tool change, a gripping element can engage in the recess 10, at the same time pressing the actuating element 7. The actuating element 7 is preferably designed so that it is guided directly in the tool body 4 and thus only in one operating direction 11 is movable. This movement of the actuating element 7 along an actuating direction 11 can take place between a basic position of the actuating element 12 and an actuating position of the actuating element 13. In the basic position of the actuating element 12, this is not activated and the bending tool 3 is secured by the Riegelna- 9/21 N2013 / 03600 9 se 8 against falling out of the tool holder. In the operating position of the actuating element 13, this is pressed and the internal mechanisms cause the bending tool 3 is freely displaceable in the tool holder 2 when the clamping of the tool holder 2, or from this in the vertical insertion direction 6 is removable.
    Directly on the actuating element 7, the locking element 8 is attached, which is fixed by means of a fastening element 14, for example, a hexagon socket screw. The locking element 8 is thus coupled directly to the movement of the actuating element 7 and is thus displaceable in the actuating direction 11. By this displacement of the locking element 8 between a locking position 15 of the locking element 8 and an unlocking position 16 of the locking element 8 can be achieved that the locking lug 9 engages either in a Sicherungsnut / retaining groove within the tool holder 2, or that it does not engage in the securing groove, thereby a removal of the bending tool 3 is made possible.
    Also shown is a tool position securing element 17, which secures the bending tool 3 against unintentional displacement in the displacement direction 5 in the tool holder 2, as long as the actual tool clamping, with which the bending tool 3 is clamped in the tool holder, is not yet activated. The securing of the bending tool 3 is ensured when the tool position securing element 17 is in its relation to the tool body 4 outwardly projecting securing position 18. In this case, a friction surface 19 of the tool position securing element 17 produces a frictional connection with the tool holder 2. The production of this frictional engagement works in that the tool position securing element 17 is pressed by a spring element 20 in the direction of the securing position 18 and thereby a normal force between the tool holder 2 and friction surface 19 is applied, which leads by friction in a running parallel to the surface friction force. This resulting frictional force secures the bending tool 3 against sliding in the direction of displacement 5. 10/21 N2013 / 03600 10th
    Preferably, the tool position securing element 17 is designed circular-cylindrical and can thus be moved in a bore 22 of the tool body 4 in the adjustment direction of the tool position securing element 21. At the end of the tool position securing element 17 lying within the tool body 4, the spring element 20 in the form of a leaf spring is attached via a fastening means.
    The actuation of the tool position securing element 17 is effected in that the spring element 20 is pressed in the form of the leaf spring over an actuating lug 23 of the locking element 8 transversely to the longitudinal extent 24 of the leaf spring, and thus shortens this in length. As a result, the tool position securing element 17 is moved from its securing position 18 in the direction of the tool body 4. The frictional engagement between the friction surface 19 and the tool holder 2 is interrupted.
    3 shows a section through a bending tool 3, in which the tool position securing element 17 is completely retracted into the tool body 4, and thus a free movement of the bending tool 3 is made possible.
    As a further possibility, it is also conceivable that not as shown in Fig. 3, the actuating element 7 is coupled directly to the locking element 8 and the locking element 8 is coupled via a spring element 20 to the tool position securing element 17, but that the tool position securing element 17 and the locking element 8 are each individually coupled to the actuating element 7.
    It is also conceivable that the actuating element 7 does not transmit the actuating movement, and thus the actuating force, via a mechanical connection to the locking element 8 and the tool position securing element 17, but that a hydraulic system is interposed, onto which the actuating element 7 applies a force and which one Force on the tool position assurance element 17 and the locking element 8 passes. 11/21 N2013 / 03600 11
    Fig. 4 shows the bending tool 3 as it is inserted in the tool holder 2 and is locked so that it is secured in position and can not be removed from the tool holder 2. This position is the position in which the bending tool 3 is located after the setup, before it is stretched by the tool holder and thus ready to work. In this case, the actuating element 7 is not pressed, whereby the locking element 8 is in the locking position 15 of the locking element 8. The locking element 8, actuating element 7 and the tool position securing element 17 are thereby held in the position shown in this Fig. 4, that the leaf spring applies a force to return to its original, flat or extended initial state. This effect on the one hand ensures that the tool position securing element 17 is pushed upwards and thus into its securing position 18. On the other hand, the leaf spring presses on the operating lug 23 of the locking element 8 and thus applies a force to bring it into the position shown. Through these effects, it is achieved that the friction surface 19 makes contact with the tool holder 2, whereby a frictional force is generated, which ensures the position of the bending tool.
    It is also conceivable that the tool position securing element 17 and the tool holder 2 have a fine toothing on surfaces in contact with each other in the securing position 18, and thus securing the bending tool 3 against accidental slippage in the direction 5 is ensured via positive locking.
    FIG. 5 shows a further embodiment of the bending tool 3, which is possibly independent of itself, wherein the same reference numerals or component designations are again used for the same parts as in the preceding FIGS. 1-4. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding FIGS. 1-4.
    In the embodiment of FIG. 5, the tool position securing element 17 extends to below the operating lug 23 of the locking element 8. Under the tool position securing element 17 is in this case as Fe 12/21 N2013 / 03600 12 derelement 20 a coil spring arranged. This coil spring endeavors to press the tool position securing element 17 upwards in the direction of the tool holder 2. By applying a force to the actuating element 7 and thus transmitting this force to the locking element 8, which engages with its actuating lug 23 in a lateral recess in the tool position securing element 17 and contacted in the recess a direction of rotation 21 of the tool position securing element 17 inclined surface 25, can be achieved in that this is moved out of its securing position 18.
    Now, if the force is removed on the actuating element 7, the spring element 20 in the form of a helical spring 17 can move the tool position securing element 17 in the direction of the securing position 18, whereby the operating lug 23 of the locking element 8 is pressed out of the tool position securing element 17 via the angled surface 25. At the same time the actuating element 7 is moved by the locking element 8 in its basic position.
    The embodiments show possible embodiments of the bending tool 3, wherein it should be noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but also various combinations of the individual embodiments are mutually possible and this variation possibility due to the teaching of technical action representational invention in the skill of those skilled in this technical field.
    Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also represent independent, inventive or inventive solutions.
    The task underlying the independent inventive solutions can be taken from the description. 13/21 N2013 / 03600 13 All information on ranges of values in the physical description should be understood to include any and all sub-ranges thereof, e.g. is the statement 1 to 10 to be understood that all sub-areas, starting from the lower limit 1 and the upper limit 10 are included, ie. all sub-areas begin with a lower limit of 1 or greater and end at an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.
    Above all, the individual embodiments shown in FIGS. 1-5 can form the subject of independent solutions according to the invention. The relevant objects and solutions according to the invention can be found in the detailed descriptions of these figures.
    For the sake of order, it should finally be pointed out that, for a better understanding of the construction of the bending tool 3, this or its components have been shown partially unevenly and / or enlarged and / or reduced in size. 14/21 N2013 / 03600 14 14 List of Reference Signs
    Pressing bar Tool holder Bending tool Tool body Displacement direction Vertical insertion direction Actuator Locking element Locking lug Recessing Actuating direction Basic position of the actuating element Actuating position of the actuating element Fastening element Locking position Unlocking position Tool position securing element Fuse position Friction surface Spring element Adjustment direction Bore
    Actuator nose Longitudinal expansion Angled surface 15/21 N2013 / 03600
    权利要求:
    Claims (11)
    [1]
    1 bending tool (3) for insertion into a tool holder (2), comprising a tool body (4), with an outside of the tool holder (2) accessible actuating element (7) coupled locking element (8) with a locking lug (9) for Securing the bending tool (3) in the tool holder (2) by engaging in a recess therein, wherein a basic position of the actuating element (12) with an unlocking position of the locking element (16) and an actuating position of the actuating element (13) with a locking position of the locking element ( 15) corresponds, further in the tool body (4) slidably mounted tool position securing element (17) in a relation to the tool body (4) projecting securing position (18) a connection for fixing the position of the tool body (4) with respect to a displacement direction (5) in the tool holder (2) manufactures, characterized in that both there s locking element (8) and the tool position securing element (17) with the same actuating element (7) are coupled.
    [2]
    2. Bending tool according to claim 1, characterized in that the tool position securing element (17) via the locking element (8) with the actuating element (7) is coupled.
    [3]
    3. Bending tool according to claim 1, characterized in that both the tool position securing element (17) and the locking element (8) are coupled directly to the actuating element (7).
    [4]
    4. Bending tool according to one of the preceding claims, characterized in that the locking element (8) and the tool position securing element (17) are coupled to each other in movement via a mechanical connection. 16/21 N2013 / 03600 16
    [5]
    5. Bending tool according to one of claims 1 to 3, characterized in that the locking element (8) and the tool position securing element (17) are coupled to each other in motion by a substantially incompressible fluid.
    [6]
    6. Bending tool according to one of the preceding claims, characterized in that the tool position securing element (17) has a friction surface (19) for producing a frictional connection with the tool holder (2).
    [7]
    7. Bending tool according to one of the preceding claims, characterized in that the tool position securing element (17) via a spring element (20) in the direction of the securing position (18) is biased.
    [8]
    8. Bending tool according to claim 7, characterized in that the spring element (20) is a leaf spring, which is oriented in the adjustment direction of the tool position securing element (21) and by a, transverse to the longitudinal extent (24) of the leaf spring applied force einknickbar and thus shortened.
    [9]
    9. bending tool according to claim 7, characterized in that the spring element (20) is formed by a coil spring.
    [10]
    10. Bending tool according to one of claims 7-9, characterized in that the tool position securing element (17) between the two ends an angled towards a movement direction of the tool position securing element (17) surface (25) which of an actuating nose (23) of the locking element ( 8) or the actuating element (7) is contacted.
    [11]
    11. Bending tool according to one of the preceding claims, characterized in that the tool position securing element (17) is designed circular-cylindrical and in a bore (22) in the tool body (4) is guided. 17/21 N2013 / 03600
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    同族专利:
    公开号 | 公开日
    WO2014201489A1|2014-12-24|
    AT514078B1|2014-10-15|
    EP3010665B1|2017-04-26|
    US10144045B2|2018-12-04|
    EP3010665A1|2016-04-27|
    US20160136706A1|2016-05-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2004024361A1|2002-09-16|2004-03-25|Trumpf Maschinen Austria Gmbh & Co. Kg.|Bending tool and tool holding fixture therefor|
    WO2004101188A1|2003-05-14|2004-11-25|Trumpf Maschinen Austria Gmbh & Co. Kg|Tool-receiving device|
    WO2006135835A2|2005-06-10|2006-12-21|Wilson Tool International Inc.|Press brake tool incorporating seating and/or locating mechanism|
    WO2007054121A1|2005-11-11|2007-05-18|Wila B.V.|Forming tool with immobilizing means for the actuating member of the safety member|
    AT511591A4|2012-02-07|2013-01-15|Trumpf Maschinen Austria Gmbh|BENDING TOOL WITH SAFETY DEVICE|
    NL9100034A|1991-01-10|1992-08-03|Wila Maschf Bv|PRESS BRAKE TOOL, AND AN ADAPTER AND A BRAKE PRESS FOR IT.|
    JP4672868B2|1999-01-13|2011-04-20|株式会社アマダ|Bending press system|
    US6467327B1|2001-08-15|2002-10-22|Wilson Tool International, Inc.|Press brake tool and tool holder|
    US6928852B2|2003-03-31|2005-08-16|Wila B.V.|Combination of a press brake clamping system and at least a press brake tool|
    US7661288B2|2003-07-01|2010-02-16|Wilson Tool International Inc.|Press brake tool safety key assemblies|
    DE602006019950D1|2006-06-01|2011-03-17|Wila Bv|Tool with automatic locking|
    AT501810T|2006-06-01|2011-04-15|Wila Bv|INTERCHANGEABLE TOOL / MANIPULATOR COMBINATION|
    JP5947620B2|2012-05-23|2016-07-06|株式会社アマダホールディングス|Upper mold and upper mold temporary fixing method|AT515526B1|2014-08-12|2015-10-15|Trumpf Maschinen Austria Gmbh|Bending tool and gripping device for manipulating the bending tool|
    AT515781B1|2014-10-08|2015-12-15|Trumpf Maschinen Austria Gmbh|Handling system for bending tools|
    AT521173B1|2018-06-27|2019-11-15|Trumpf Maschinen Austria Gmbh & Co Kg|Bending tool with spacer element|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50403/2013A|AT514078B1|2013-06-20|2013-06-20|bending tool|ATA50403/2013A| AT514078B1|2013-06-20|2013-06-20|bending tool|
    US14/899,597| US10144045B2|2013-06-20|2014-06-17|Bending tool|
    EP14749700.2A| EP3010665B1|2013-06-20|2014-06-17|Bending tool|
    PCT/AT2014/050135| WO2014201489A1|2013-06-20|2014-06-17|Bending tool|
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