• 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:
    An automatic wire feed adjuster (135), comprising a feed mechanism comprising a pair of rollers (114) feeding a wire (135) therebetween, a single voltage actuator (115) adjusting a voltage between the pair of rollers (114), a wire speed sensor (116) which measures a feed rate of the wire (135) after exiting the feed mechanism, and a control circuit (110) which compares the drive speed of the wire (135) with the feed speed of the wire (135), and which determines whether the voltage actuator (115) should instructed to adjust the tension between the pair of rollers (114).
    公开号:SE535165C2
    申请号:SE0950943
    申请日:2007-06-27
    公开日:2012-05-02
    发明作者:Andreu Preston Meckler
    申请人:Lincoln Global Inc；
    IPC主号:
    专利说明:

    In order to achieve the desired feed rate, a magnitude of tension between the rollers 14 is also adjustable by the operator, before the welding operation is started.
    The term tension is widely used in this context to represent both a "tension" force acting on each roller 14 in one direction towards the other (such as being created by a capercaillie element connecting the two rollers 14) and as a "pressure" which forces the rollers 14 against each other (e.g. as created by capercaillie elements on opposite sides of the two rollers 14). This tension between the rollers 14 acts to pull wire 35 from the spool 30, and advance wire 35 toward the gun 22. The adjustment is typically accomplished by a small thumbwheel or other adjustment mechanism.
    The tension between the rollers 14 is set against the background of the diameter of the wire 35, and is kept constant during the welding operation. Unfortunately, if the tension between the rollers is set too high, the rollers 14 will deform the wire 35 as it passes through it. Such a deformed wire 35 can clog the gun 22. On the other hand, if the pressure between the rollers 14 is set too low, the wire 35 will be fed to the gun 22 at an irregular speed, which results in an uneven welding arc and poor welding quality.
    Furthermore, even if the voltage is set correctly on a first section of the wire 35, there is inherent variability in the diameter of the wire 35 due to factors such as manufacturing process versions and / or damage during transport or storage. In other words, the wire 35 need not have a constant diameter along its length. Thus, when the wire 35 is fed to the gun 22 through the rollers 14, the voltage set before the welding operation (in view of a starting diameter of the wire 35) may become unsuitable, and the wire 35 may begin to deform or be fed irregularly, as described above.
    The problems described above require an improvement in systems according to the related art. 10 15 20 25 30 535 165 3 BRIEF SUMMARY OF THE INVENTION According to one aspect of the invention, there is provided an automatic feed voltage adjuster which overcomes the problems of the prior art.
    According to another aspect of the invention, there is provided an automatic wire feed adjuster comprising a feed mechanism comprising a motor and a pair of rollers feeding a wire therebetween, the motor being adapted to measure a drive speed of the wire; a tension actuator that adjusts a tension between the pair of rollers; a wire speed sensor that measures a feed rate of the wire after exiting the feed mechanism; and a control circuit which compares the drive speed of the wire with the feed speed of the wire, and which instructs the tension actuator to adjust the tension between the pair of rollers, until the drive speed becomes the feed speed equal when the drive speed of the wire differs from the feed speed of the wire .
    According to another aspect of the invention, there is provided an automatic wire feed adjuster, comprising a feed mechanism comprising a motor and a pair of rollers for feeding a wire therethrough with application of a force to the wire, the motor being adapted to measure a drive speed. at the thread; a power adjuster that adjusts the force applied to the wire; a wire speed sensor which measures a feed rate of the wire after exiting the feed mechanism, a control circuit which compares the drive speed of the wire with the feed speed of the wire, and which determines whether the force adjuster is instructed to adjust the force applied to the wire, until that the drive speed the feed speed becomes equal when the drive speed of the wires differs from the feed speed of the wire.
    According to another aspect of the invention, there is provided a method of adjusting a wire feed, comprising feeding a wire via a motor through a driven pair of rollers with a tension therebetween; measuring a drive speed of the wire by measuring the speed of the motor; measuring a feed rate of the wire after it emerges from the pair of rollers; comparing the drive speed of the wire with the feed speed of the wire; and adjusting the tension between the pair of rollers, until the drive speed of the feed speed becomes equal as the drive speed of the wire differs from the feed speed of the wire.
    According to another aspect of the invention, there is provided a method of adjusting a wire feed, comprising feeding a wire via a motor through a feed mechanism which applies a force to the wire; measuring a drive speed of the wire by measuring the speed of the motor; measuring a feed rate of the wire after it exits the feed mechanism; comparing the drive speed of the wire with the feed speed of the wire; and adjusting the force applied to the wire until the drive speed of the feed rate becomes equal as the drive speed of the wire differs from the feed speed of the wire.
    The above aspects, as well as other aspects, features and advantages according to the invention will become more apparent to those skilled in the art upon review of the following description. BRIEF DESCRIPTION OF THE DRAWING YEAR The above and / or other aspects of the invention will become more apparent by describing in detail the exemplary embodiments of the invention with reference to the accompanying drawings, in which: Fig. 1 illustrates a schematic view of a welding system according to the related art; and Fig. 2 illustrates a schematic view of a welding system in accordance with an embodiment of the invention.
    DETAILED DESCRIPTION OF THE EXAMPLIFIED EMBODIMENTS Exemplary embodiments according to the invention will now be described below with reference to the accompanying figures. The described exemplary embodiments are intended to assist in the understanding of the invention, and are not intended to limit the scope of the invention in any way. The same reference numerals hereby refer to the same body. In an exemplary embodiment according to the invention, an automatic feeder adjuster is used to provide optimized wire feed and welding.
    More specifically, as shown in Fig. 2, the welding system 101 includes control circuit 110, power source 120, motor 112, voltage actuator 115, wire speed sensor 116, user / data interface 118, and coil 130. Coil 130 includes wire 135 wound thereon. Motor 112 drives opposite rollers 114 to pick up wire 135 from spool 130 and send it to gun 122. The operator uses gun 122 to form a weld on a workpiece 140. When the weld is formed on the workpiece 140, wire 135 is consumed, which is again replaced by engine 112.
    User / data interface 118 provides an entry of data regarding the wire 135 to be entered into the ice welding system 101. This wire data may include any specific information regarding the wire 135, such as its diameter, length, shape, manufacturer. 6 number, internal part number, or any other physical number. chemical or performance properties that may be useful.
    The user / data interface 118 may include, without limitation, any digital, analog, or manual devices, whereby an operator may enter wire data (e.g., a Greek user interface, a text-based input system, adjustment buttons, sliders, etc.) or any preferably a device that reads wire data from the wire 135 or its packaging (eg an RFID reader, magnetic or optical control, bar code reader, etc). Furthermore, data regarding the wire 135 can also be stored in the welding system 101 for later use (or stored, before use), and easily made available to the operator through the user / data interface 118.
    The welding system 101 then uses wire data for the wire 135 to initially adjust, and continuously control, the tension between the rollers 114 (via the tension actuator 115). More specifically, the voltage actuator 115 first adjusts the tension between the rollers 114 to a setting equal to an initial voltage equal to a minimum size of a voltage between the rollers 114 necessary to advance the wires 135 to the gun 122 without slipping. This initial minimum voltage is determined in accordance with the wire data (eg a diameter) of the wire 135. Wire data can be input to the welding system 101 as described above.
    Then, during the welding operation, as the wire 135 is continuously fed through the rollers 114, the tension actuator acts to continuously adjust the tension between the rollers 114 to maintain a minimum amount of tension between the rollers 114 necessary to advance the wire 135 to the gun 122. without slipping.
    This minimum operation of voltage is determined by feedback data supplied to the control circuit 110 from the motor 112 and the wire speed sensor 116, as described above.
    The use of these minimum stresses avoids all irregular supply of the wire 135 due to a voltage that is set too low, and all possible deformation of the wire 135 due to a voltage is set too high. Furthermore, when voltage adjustments are made automatically by the voltage control device 115, the possibility of operator errors affecting the feed of the wire 135 is dramatically reduced. 10 15 20 25 30 535 'IBS 7 As mentioned above, the minimum operating voltage is determined by data feedback.
    More specifically, when the welding system 101 feeds wire 135 via the motor 112 and opposite rollers 114, the control circuit 110 obtains a first wire speed of the wire 135 by measuring the speed of the motor 112 and taking into account the diameters of the rollers 114. In addition, the control circuit 110 receives a second wire speed from the wire speed sensor 116, which directly measures the speed of the wire 135 as it passes therethrough.
    The control circuit 110 then compares the first and second wire speeds. If the wire speeds are the same, no slippage of the wire 135 occurs on the opposite rollers 114, and no tension adjustment is necessary. Thus, the controller 110 does not instruct the tension actuator 115 to modify the tension of the rollers 114.
    However, if the first wire speed calculated from the motor speed is higher than the second wire speed read from the wire sensor 118, the wire 135 slides on the opposite rollers 114. Thus, the control circuit 110 will instruct the voltage actuator 115 to increase the voltage between the opposite rollers 114 until that the first and second wire speeds become equal (ie, until the wire 135 stops sliding).
    The control circuit 110 will continuously increase the voltage between the opposite rollers 114 until they reach a maximum value. The maximum value can be set against the background of many factors, including a point at which the wire 135 will begin to deform due to the voltage. This maximum value is determined in accordance with thread data (eg, diameter, type, size, etc.) of thread 135.
    The scan speed for determining the first and second wire speeds is not limited, but should be set to optimize the welding operation.
    The wire speed sensor may be any sensor that enables the provision of desired wire speed data, including, without limitation, electronic or mechanical sensors that are in contact or not in contact with the wire 135. When the wire speed sensor in Fig. 2 is positioned after the rollers 114 , since the wire is continuous, the speed sensor can be located at any point along the length of the wire 135. Opposite rollers 114 are illustrated in this exemplary embodiment. However, opposite rollers are not required, and the invention is not limited thereto. For example, the extension is equally applicable to systems that have eller or less than two rollers, or to systems that use other drive concepts for wires 135 that can create some kind of pressure on the wire.
    This pressure can be adjusted in the same way as the voltage described in the exemplary embodiment.
    Furthermore, there is no limitation on the proportion of the rollers 114 to be driven by the motor 112. For example, one roller of the rollers 114 may be driven, and the other roller may be a non-driven accompanying roller.
    The term voltage is widely used in this context in accordance with the invention. By this is meant either a "tension" force acting on each roller in one direction towards the other and as a "pressure" acting on the rollers against each other.This voltage can be created by capercaillie means, elastic members, arms, electric motors, or The magnitude of the voltage is adjusted by an adjustment of the pressure or voltage exerted on these devices, which in turn adjusts the voltage between the opposing rollers. such component, by electrical or mechanical means.
    As mentioned above, the exemplary embodiment uses wire data to set an initial tension equal to a minimum magnitude of the tension between the rollers 114. However, the tension is not limited thereto, and the initial tension can be set to a point between the minimum and the maximum tension. . Thereafter, the voltage actuator can be operated to reduce the voltage until the feedback data indicates that there is a slippage of the wire, at which point the voltage can be increased again in accordance with the process described above.
    Although Fig. 2 illustrates a single welding system 101, including the coil 130, the motor 112, the opposite rollers 114, the tension actuator 116 and the wire speed sensor 118, each of these elements can be provided independently, or assembled together in any desired combination. For example, roller 114 may be removably attached to a welding machine, located near the machine, or built into the machine, depending on the style and type of machine of a particular manufacturer. Furthermore, the invention can be adapted to existing welding systems by adding the necessary components.
    The welding system described herein is applicable to any welding system that uses a wire feed.
    While the invention has been particularly described and illustrated with reference to the exemplary embodiments thereof, the invention is not limited to these embodiments. It will be appreciated by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims.
    权利要求:
    Claims (23)
    [1] 1. An automatic wire feed adjuster, comprising: a feeding mechanism comprising a pair of rollers that feeds a wire therebetween; a tension controller that adjusts a tension between the pair of rollers; a control circuit that decides whether to instruct the tension controller to adjust the tension between the pair of rollers.
    [2] 2. An automatic wire feed adjuster, eomprising: a feeding mechanism comprising a pair of rollers that feeds a wire therebetween; a tension controller that adjusts a tension between the pair of rollers; a wire speed sensor that measures a fed speed of the wire after exiting the feedirigmechanism, i a control circuit that compares a driven speed of the wire with the fed speed of the wire,and that decides whether to instruct the tension controller to adjust the tension between the pair of rollers.
    [3] 3. The automatic wire feed adjuster recited in elaim 2, wherein the driven speed of thewire is calculated by taking into account the rotational_speed and the diameter of at least one of the pair of rollers.4. The automatic wire feed adjuster recited in elaim 2, wherein the control circuit increases the tension between the pair of rollers when the driven speed of the wire is greater than the fea speed of the wire.
    [4] 4. WO 2008/150271 PCT/US2007/015116
    [5] 5. The automatic wire feed adjuster recited in claim 2, further comprising a user interfacefor accepting wire data, wherein:the wire data comprises a wire diameter; andthe control circuit determines an initial tension between the pair of rollers, and a maximum tension between the pair of rollers, in view of the wire data.
    [6] 6. An automatic wire feed adjuster, comprising: a feeding mechanism for feeding a wire therethrough by applying a force to the wire;a force adjuster that adj usts the force applied to the wire; a control circuit that decides whether to insiruct the force adjuster to adjust the force applied to the wire.
    [7] 7. An automatic wire feed adjuster, comprising: a feeding mechanism for feeding a wire therethrough by applying a force to the wire; a force adjuster that adjusts the force applied to the wire; a wire speed sensor that measures a fed speed of the wire after exiting the feeding mechanism, Ia control circuit that compares a driven speed of the wire with the fed speed of the wire, and that decides 'whether to instruct the force adjuster to adjust the force applied to the wire.
    [8] 8. The automatic wire feed adjuster recited in claim 8, wherein the driven speed of the wire is the speed of the wire within the feeding mechanism. ll WO 2008/150271 PCTfUS2007/015116
    [9] 9. The automatic wire feed adjuster -recited in claim 8, wherein the control circuitincreases the force applied to the wire when the driven speed of the wire is greater than the fed speed of the wire.
    [10] 10. The automatic wire feed adjuster recited in claim 8, further comprising a userinterface for accepting Wire data, wherein: the wire data comprises a wire diameter; and the conu-ol circuit determines an initial pressure applied to .the wire, and a maximum pressure applied to the wire, in view of the wire data.
    [11] 11. ll. A method of adjusting a wire feed, comprising:feeding a wire through a driven pair of rollers having a tension therebetween;measuring a fed speed of the wire after it exits fiom between the pair of rollers; deciding whether to adjust the tension between the pair of rollers.
    [12] 12. A method of adjusting a wire feed, comprising: feeding a wire through a driven pair of rollers having a tension therebetween;measuring a fed speed of the wire afier it exits fiom between the pair of rollers;comparing a driven speed of the wire with the fed speed of the wire; and deciding whether to adjust the tension between the pair of rollers.
    [13] 13. The method of adjusting a wire feed recited in claim 15, further comprisingcalculating the driven speed of the wire by taking into account the rotational speed and the diameter of at least one of the pair of rollers. 12 WO 2008/150271 PCT/US2007/015116
    [14] 14. The method of adjusting a wire feed recited in cIaim 15, fiJrther comprisingincreasing the tension between the pair of rollers when the driven speed of the wire is greater than the fed speed of the wire.
    [15] 15. The method of adjusting a wire feed recited in cIaim 15, further comprising: entering wire data via a user interface, wherein the wire data comprises a wire diameter;and determining an initial tensíon between the pair of rollers, and a maximum tension between the pair of rollers, in view of the wire data.
    [16] 16. A method of adjusting a wire feed, comprising:feeding a wire through a feeding mechanism that applies a force to the wire;measuring a fed speed of the wire after it exits fi-om the feeding mechanism; deciding whether to adjust the force applied to the wire.
    [17] 17. A method of adjusting a wire feed, comprising: feeding a wire through a feeding mechanism that applies a force to the wire;measuring a fed speed of the wire afier it exits fiom the feeding mechanism;comparing a driven speed of the wire with the fed speed of the wire; and deciding whether to adjust the force applied to the wire..
    [18] 18. The method of adjusting a wire feed recited in cIaim 17, further comprising calcuiating the driven speed of the wire inside the feeding mechanism. 13 WO 2008/150271 PCT/US2007/015116
    [19] 19. The method of adjusting a wire feed recited in claim 17, further comprisingincreasing the force applied to the wire when the driven speed of the wire is greater than the fed speed of the wire.
    [20] 20. The method of adjusting a wire feed recited in claim 17, further cornprising:enter-ing wire data via a user interface, wherein the wire data cornprises a wire diameter;and_ determining an initial force applied to the wire, and a maximum force applied to the wire, in view of the wire data.
    [21] 21. An automatic wire feed adjuster, comprising a control circuit that decides whether toinstruct a tension controller to adjust a tension between a pair of rollers in a feeding mechanism that feeds a wire therebetvveen.
    [22] 22. The automatic wire feed adjuster recited in claim 21 , wherein the control circuitdecides whether to instruct the tension controller to adjust the tension by comparíng a drivenspeed of the wire determíned from the pair of rollers with a fed speed of the wire measured on the wire.
    [23] 23. An automatic wire feed adjuster, comprising a tension controller that adjusts atension between a pair of rollers in a feeding mechanism that feeds a wire therebetween in viewof a comparison of a driven speed of the wire determined from the pair of rollers with the fed speed of the wire measured on the wire. 14
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    同族专利:
    公开号 | 公开日
    EP2164787A1|2010-03-24|
    CN101702899A|2010-05-05|
    SE0950943A1|2010-02-18|
    AU2007354690A1|2008-12-11|
    AU2007354690B2|2012-05-24|
    US9555495B2|2017-01-31|
    US20080296278A1|2008-12-04|
    WO2008150271A1|2008-12-11|
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    US11/755,821|US9555495B2|2007-05-31|2007-05-31|Automatic welding wire feed adjuster|
    PCT/US2007/015116|WO2008150271A1|2007-05-31|2007-06-27|Automatic welding wire feed adjuster|
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