KR101189060B1 - Jig apparatus for laser welding - Google Patents

Jig apparatus for laser welding Download PDF

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Publication number
KR101189060B1
KR101189060B1 KR20100033809A KR20100033809A KR101189060B1 KR 101189060 B1 KR101189060 B1 KR 101189060B1 KR 20100033809 A KR20100033809 A KR 20100033809A KR 20100033809 A KR20100033809 A KR 20100033809A KR 101189060 B1 KR101189060 B1 KR 101189060B1
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South Korea
Prior art keywords
welding
jig
laser
slider
sides
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KR20100033809A
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Korean (ko)
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KR20110114261A (en
Inventor
박근환
이문용
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주식회사 성우하이텍
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Priority to KR20100033809A priority Critical patent/KR101189060B1/en
Publication of KR20110114261A publication Critical patent/KR20110114261A/en
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Abstract

According to the present invention, when laser welding of welding objects having different thicknesses, a support unit is installed corresponding to one side of the lower end of the welding end of each welding object, and the lower end side of the welding end of each welding object is raised at a predetermined angle through the support unit. Laser welding while pressurizing the deformed welding end in the deformed state to improve welding quality by allowing full penetration welding through stepped tuning of each welding end which is a deformation section of each welding object. Provide jig device.

Description

Jig device for laser welding {JIG APPARATUS FOR LASER WELDING}

The present invention relates to a jig device for laser welding, and more particularly, in the laser welding of welding objects having different thicknesses, the upper end of the deformed welding end in a state in which one side of the welding end of each welding object is raised and deformed at a predetermined angle. The present invention relates to a jig device for laser welding, which enables full penetration welding by adjusting laser welding step by step, and adjusting the welding step difference, which is a deformation section of each welding object.

In recent years, the cutting, welding, and heat treatment of metal materials in the industrial field have tended to apply laser beams having excellent effects in terms of cost reduction, factory automation, and quality improvement. Targets include the uniformity of the laser beam energy distribution, laser power control to maintain a constant heat treatment temperature, optimal laser beam irradiation speed to meet productivity and quality, and maximize energy absorption.

In other words, when these targets are met, cost reduction and quality improvement can be expected in product development.

In this case, in order to perform laser welding using a laser beam, a metal material such as steel sheet must be regulated, and thus a jig device having a plurality of clamping units is used.

1 is a block diagram of a jig device for laser welding according to the prior art, the conventional laser welding jig device 1 is a frame (2) in which the locator block (5) on which the welding object (P) is seated on the jig base (3) It is mounted through 7), the clamping unit 20 for regulating the welding object (P) is mounted on both sides of the locator block (5).

Looking at the configuration of the clamping unit 20, the upper side of the locator block 5, the clamper 21 is mounted so as to be operative link through the link link 23, respectively, both ends of the locator block (5) The clamping cylinders 27 are respectively mounted through the connecting rods 25, and the operating rods 29 of the respective clamping cylinders 27 are hinged to the rear ends of the respective clampers 21.

Therefore, after the welding objects P having different thicknesses are seated on the laser welding jig device 1 having the above-described configuration, the clamping unit 20 is connected to the end of each welding object P. The laser beam LB oscillated from the laser oscillator 33 is mounted on the tip of the arm 31 of the robot (not shown) in a state of clamping through the welding pattern to the welding ends of the welding objects P which are in contact with each other. The welding operation is performed through the laser optical head 35 to be irradiated.

However, in the conventional laser welding jig device 1 as described above, the welding operation is performed in the state in which the end portions of the respective welding targets P are clamped through the respective clamping units 20. In the case of laser welding operation because the welding end of the object P is not regulated, residual stress, deformation, bending, etc. are generated at the welding end of each welding object P, so that the welding end of each welding object P is completely completed. The penetration welding becomes difficult, and there is a problem in that welding defects occur.

In addition, during the laser welding operation of the welding object (P) having a different thickness, the welding operation is completed in the state that the lower end of the welding end of each of the welding object (P), which is a deformation section, does not coincide with each other, the respective welding object ( Steps are generated on the lower surface of the welding end of P), and thus the welding quality is deteriorated.

Therefore, the present invention has been invented to solve the problems described above, the problem to be solved by the present invention, the laser unit of the welding object having a different thickness, the support unit corresponding to one side at the lower end of the welding end of each welding object By installing the laser beam, while pressing the deformed welding end from the upper side in the state in which the lower end of the welding end of each welding object is deformed by a predetermined angle through the support unit, by the laser welding proceeds, It is to provide a jig device for laser welding to improve the welding quality by enabling a full penetration welding through the welding step step coordination.

The jig device for laser welding according to the embodiment of the present invention for achieving the above object is provided on the jig base and the jig base so that each welding object is seated upon laser welding of welding objects having different thicknesses through the laser optical head. In the jig device for laser welding comprising a locator block mounted through the frame and a plurality of clamping units for regulating the two welding objects seated on the locator block,

A mounting groove formed at the center of the locator block; And a support unit installed on both sides of the mounting groove so as to be movable upward and downward in correspondence with the respective welding objects, and configured to raise and deform one side of the welding end of each welding object at a predetermined angle. It further includes, The support unit is a drive motor which is respectively installed on both sides of the mounting groove; A screw shaft mounted to the rotation shaft of each drive motor; A screw housing movably mounted on the screw shaft by rotation of the screw shaft while being inserted into a distal end portion of the screw shaft; A slider mounted on an upper portion of the screw housing, the slider being slidably installed through guide means in the mounting groove according to the rising or falling of the screw housing; And a support pad mounted on an upper surface of the slider to be in contact with and supported by a lower end of the weld end of the welding target.

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The guide means may include guide rails respectively formed at both sides of the mounting groove; And a slider block movably mounted along the guide rail and connected to one side of the slider.

The guide rails are formed as grooves on both sides of the mounting groove, respectively, so that the slider block is fitted to slide.

The drive motor is characterized by consisting of a step motor capable of adjusting the rotational direction and rotational speed thereof.

The support pad is characterized in that the material is made of a urethane material.

The laser optical head may further include a pressurizing unit mounted at a lower portion of the laser optical head so as to move while pressing along both sides of an upper end of the weld end of each welding object to be deformed by a predetermined angle.

The pressurizing unit includes a roller housing mounted on both sides of the lower surface of the laser optical head; And rotatably installed at the lower portions of the roller housings, the rollers being in contact with the upper ends of the welding ends of the respective welding targets to provide pressing force.

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As described above, according to the laser welding jig apparatus according to the embodiment of the present invention, in the laser welding of welding objects having different thicknesses, a support unit is installed corresponding to one side under the welding end of each welding object, and the support Through the unit, laser welding is performed while pressing the deformed welding end from the upper side while raising and lowering one side of the lower end of the welding end of each welding object by a predetermined angle, thereby adjusting the step difference of each welding end, which is the deformation section of each welding object. It is possible to make full penetration welding and improve the welding quality.

In addition, laser welding is performed while simultaneously pressing the upper and lower sides of the welding end of each welding object through the supporting unit and the pressing unit, thereby preventing the occurrence of residual stress, deformation and bending of the welding object. It also has the effect of minimizing and improving productivity.

1 is a block diagram of a jig device for laser welding according to the prior art.
2 is a block diagram of a jig device for laser welding according to an embodiment of the present invention.
3 is an enlarged view of a portion A of FIG. 2 and is an enlarged configuration diagram of a jig unit applied to a jig device for laser welding according to an exemplary embodiment of the present invention.
4 to 6 is a step-by-step state of use of the jig device for laser welding according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not restrictive of the invention, It should be understood that various equivalents and modifications may be present.

2 is a configuration diagram of a laser welding jig device according to an embodiment of the present invention, Figure 3 is an enlarged view of the portion A of Figure 2, jig applied to the laser welding jig device according to an embodiment of the present invention. An enlarged configuration diagram of the unit.

Referring to the drawings, the laser welding jig device 100 according to an exemplary embodiment of the present invention, when the laser welding of the welding object (P) having a different thickness, at one side below the welding end of each welding object (P) Correspondingly, the support unit 130 is installed, and the lower end of the weld end of each welding object P is raised by a predetermined angle through the support unit 130 to deform the welding end while pressing the deformed weld end from the top. By performing the welding, it is possible to improve the welding quality by enabling the complete penetration welding through the adjustment of each step of the welding step, which is a deformation section of each welding object (P).

To this end, the laser welding jig device 100 according to an embodiment of the present invention, as shown in Figure 2, basically the laser welding of the welding object (P) having a different thickness through the laser optical head 101. At the time, each welding object 103 is seated on the jig base 105, the locator block 109 mounted on the jig base 105 through the frame 107, and the locator block 109. It comprises a plurality of clanping units 110 for regulating two welding objects (P).

In the present embodiment, looking at the configuration of the clamping unit 110, the upper side of both sides of the locator block 109, the clamper 111 is mounted to the link operation via the link link 113, respectively, the locator block ( Clamping cylinders 117 are mounted on both sides of the clamping cylinders 117 through connecting rods 115, respectively, and the operating rods 119 of the respective clamping cylinders 117 are hinged at the rear ends of the respective clampers 111. Combined.

That is, each clamping unit 110 is configured as described above by rotating the clamper 111 through the forward and backward operation of the operating rod 119 of the clamping cylinder 117, the end of each welding object (P) Clamping on the locator block 109 is regulated.

Here, the jig device 100 for laser welding according to the embodiment of the present invention configured as described above, as shown in Figure 2, further comprises a mounting groove 120 and the support unit 130.

The mounting groove 120 is formed at the center of the locator block 109.

And the support unit 130 is installed to move up and down through the motor drive on both sides of the inside of the mounting groove 120 corresponding to each welding object (P), respectively, of the welding object (P) One side of the welding end is configured to deform by raising the angle.

Here, the support unit 130, as shown in Figure 3, including a drive motor 131, screw shaft 133, screw housing 135, slider 137, and the support pad 139 If it is configured in more detail for each configuration as follows.

First, the driving motors 131 are installed at both sides of the mounting groove 120, respectively, and operate according to a control signal output from the controller 140.

Here, the drive motor 131 is preferably made of a step motor capable of adjusting the rotation direction and rotation speed.

In this embodiment, the screw shaft 133 is mounted on the rotation shaft of each drive motor 131 is rotated in the forward or reverse direction according to the operation of the drive motor 131.

The screw housing 135 is movably mounted on the screw shaft 135 by the rotation of the screw shaft 133 while being inserted into the distal end of the screw shaft 133.

Here, the screw housing 135 has an insertion groove 136 is formed in the center of the thread is formed, the screw shaft 133 is screwed through the insertion groove 136.

Accordingly, the screw housing 135 is moved up and down on the screw shaft 133 according to the forward or reverse rotation of the screw shaft 133.

In the present embodiment, the slider 137 is mounted on the top of the screw housing 135, the guide means 121 in the mounting groove 120 in accordance with the rising or falling of the screw housing 135 The slide is installed to be movable.

Here, the guide means 121 is mounted to be movable along the guide rails 123 and the guide rails 123 formed on both sides of the mounting groove 120, respectively, one side of the slider 137 It consists of a slider block 125 connected with.

The guide rails 123 are formed as grooves on both side surfaces of the mounting groove 120 so that the slider block 125 is slidably movable.

In addition, the support pad 139 is mounted on the upper surface of the slider 137 so as to contact and support the lower end of the welding end of the welding target (P).

Here, the support pad 139 may be made of a urethane material to minimize friction when contacting the lower end of the welding end of the welding target (P).

On the other hand, in the exemplary embodiment of the present invention while the laser optical head 101 is moved along both sides of the upper end of the welding end of each welding object (P) is deformed to be raised by a certain angle through the support unit 130 in the lower portion It further comprises a pressurizing unit 150 mounted to pressurize.

The pressing unit 150 is composed of a roller housing 151 and the pressing roller 153, which will be described in more detail for each configuration as follows.

First, the roller housing 151 is mounted on both sides of the lower surface of the laser optical head 101, respectively.

In addition, the pressure roller 153 is rotatably installed at the lower portion of the roller housing 151, the rolling contact to the upper side of the welding end of each welding object (P) to provide a pressing force.

That is, the laser optical head 101 is mounted at the tip of the arm 102 of the robot (not shown), and the laser beam LB oscillated from the laser oscillator 104 is connected to the welding ends of the welding objects P which are in contact with each other. When welding by welding along the welding pattern, the welding in a pressurized state through the pressing unit 150 moving along both sides of the upper end of the welding end of each welding object (P) deformed by the operation of the support unit 130. The work is performed to weld the welding ends of the welding objects P to each other.

Hereinafter, the operation of the laser welding jig device 100 and the laser welding method using the laser welding jig device 100 according to an embodiment of the present invention configured as described above will be described in detail.

4 to 6 is a step-by-step state of use of the jig device for laser welding according to an embodiment of the present invention.

First, as shown in FIG. 4, when welding objects P having different thicknesses are seated on the locator block 105, the clamping cylinders 117 of the respective clamping units 110 are operated to operate the respective welding objects. The end of (P) is regulated by clamping on the locator block 105 through the respective clampers 111.

Then, each of the support units 130, as shown in Figure 5, receives the output signal from the controller 140 to operate the drive motor 131.

Then, the screw shaft 133 is rotated by the drive motor 131 to move the shaft housing 135 upward on the screw shaft 133, and at the same time, the slider 137 is welded to the respective welds. It rises to the lower end of the welding end of the object P.

At this time, the slider block 125 of the guide means 121 moves along the guide rail 123 to stably guide the movement of the slider 137 connected to the slider block 125.

Accordingly, the slider 137 is in contact with the lower side of the weld end of each welding object 1 through the support pad 139 to minimize the friction, and the slider 137 continues to rise. Accordingly, the welding end of each welding object P is raised at a predetermined angle.

That is, each of the support unit 130 is the driving motor 131 to the lower end of the welding end of each welding object (P), the end of which is controlled by the respective clamping unit 110 through the operation as described above. By pushing through the slider 137 which is raised through the operation of the ascending at an angle, it is deformed.

Then, the pressing unit 150, as shown in Figure 6, by the arm 102 of the robot connected to the laser optical head 101, the angle deformed through the operation of the support unit 130 Residual stress and deformation while pressing through the pressure rollers 153 moving in rolling contact along both sides of the upper end of the welding end P of the welding target P to match the lower surface of the welding end of each welding target P without a step, and It keeps the state which prevented bending occurrence.

In this state, the laser optical head 101 irradiates and welds the laser beam LB oscillated from the laser oscillator 104 to the welding ends which are in contact with each other of the welding objects P, thereby completing the laser welding operation. Done.

Therefore, when applying the laser welding jig device 100 according to the embodiment of the present invention configured as described above, the welding end of each welding object (P) at the time of laser welding of the welding object (P) having a different thickness. The support unit 130 is installed at a lower portion corresponding to one side, and the weld end that is deformed in the state of being deformed by raising the lower one side of the weld end of each welding target P through the support unit 130 at a predetermined angle. By performing laser welding while pressurizing at, the welding quality can be improved by enabling full penetration welding through stepwise tuning of each welding step, which is a deformation section of each welding object P. FIG.

In addition, the laser welding is performed while simultaneously pressing the upper and lower portions of the welding ends of the respective welding targets P through the support unit P and the pressing unit 150, thereby remaining stress and deformation of the welding target P, And by preventing the occurrence of bending and the like, it is possible to minimize the welding failure, and improve the productivity.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood that various modifications and changes may be made without departing from the scope of the appended claims.

Welded Objects ... P Laser Optics Head ... 101
Clamping Unit ... 110 Mounting Groove ... 120
Guide Means ... 121 Guide Rails ... 123
Slider block ... 125 Support unit ... 130
Drive motor ... 131 Screw shaft ... 133
Shaft Housing ... 135 Slider ... 137
Support Pad ... 139 Pressure Unit ... 150
Roller Housing ... 151 Pressure Roller ... 153

Claims (9)

  1. When laser welding a welding object having a different thickness through a laser optical head, a jig base, a locator block mounted through a frame on the jig base, and two welding objects seated on the locator block so that each welding object is seated. In the jig device for laser welding comprising a plurality of clamping units for regulating the
    A mounting groove formed at the center of the locator block; And
    The support unit is installed so as to be moved up and down by driving the motor on both sides of the mounting groove in correspondence with each welding object, and is configured to raise and deform one side of the welding end of each welding object by a predetermined angle. More,
    The support unit
    Drive motors respectively installed on both sides of the mounting groove;
    A screw shaft mounted to the rotation shaft of each drive motor;
    A screw housing movably mounted on the screw shaft by rotation of the screw shaft while being inserted into a distal end portion of the screw shaft;
    A slider mounted on an upper portion of the screw housing, the slider being slidably installed through guide means in the mounting groove according to the rising or falling of the screw housing; And
    A jig device for laser welding, comprising: a support pad mounted on an upper surface of the slider to be in contact with and supported by a lower end of a welding end of the welding target.
  2. delete
  3. The method of claim 1,
    The guide means
    Guide rails respectively formed at both sides of the mounting groove; And
    Jig device for laser welding, it is mounted so as to move along the guide rail, consisting of a slider block connected to one side of the slider.
  4. The method of claim 3,
    And the guide rails are formed as grooves on both sides of the mounting groove, respectively, so that the slider block is slidably movable.
  5. The method of claim 1,
    The driving motor is a jig device for laser welding, characterized in that consisting of a step motor capable of adjusting the rotational direction and rotational speed thereof.
  6. The method of claim 1,
    The support pad is a jig device for laser welding, characterized in that the material is made of a urethane material.
  7. The method of claim 1,
    The laser optical head jig device for laser welding further comprises a pressurizing unit mounted to move along the both sides of the upper end of the welding end of each of the welding object is deformed by a predetermined angle through the support unit in the lower portion. .
  8. The method of claim 7, wherein
    The pressurizing unit
    Roller housings mounted on both sides of a lower surface of the laser optical head; And
    A jig device for laser welding, which is rotatably installed at a lower portion of the roller housing, and comprises a pressurizing roller which is in rolling contact with one side of an upper end of a welding end of each welding object to provide a pressing force.
  9. delete
KR20100033809A 2010-04-13 2010-04-13 Jig apparatus for laser welding KR101189060B1 (en)

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Application Number Priority Date Filing Date Title
KR20100033809A KR101189060B1 (en) 2010-04-13 2010-04-13 Jig apparatus for laser welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20100033809A KR101189060B1 (en) 2010-04-13 2010-04-13 Jig apparatus for laser welding

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KR20110114261A KR20110114261A (en) 2011-10-19
KR101189060B1 true KR101189060B1 (en) 2012-10-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106392421A (en) * 2016-11-13 2017-02-15 重庆华万伦电器有限公司 Auxiliary device for aluminum alloy plate welding
KR20190061205A (en) 2017-11-27 2019-06-05 (주) 동신모텍 Welding Jig for Thickness adjuster

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Publication number Priority date Publication date Assignee Title
KR101371273B1 (en) * 2011-12-15 2014-03-10 주식회사 성우하이텍 Jig device for laser heat treatment
KR101428176B1 (en) * 2012-07-19 2014-08-08 주식회사 포스코 Apparatus for welding
KR101381955B1 (en) * 2012-12-27 2014-04-08 (주)신흥정기 Aparatus for laser welding
KR101479428B1 (en) * 2013-11-25 2015-01-05 주식회사 윌리언스 Jig for film transferring process
CN104117771B (en) * 2014-08-04 2016-01-27 哈尔滨工业大学 A kind of device and method that can reduce butt weld angular deformation
CN104438462B (en) * 2014-11-05 2016-05-11 九冶建设有限公司 A kind of reversible deformation method for prefabricating of flange plate Welding Angular Deformation
CN106216840A (en) * 2016-08-31 2016-12-14 昆山宝锦激光拼焊有限公司 A kind of ultrahigh speed Laser Tailor-welded Production Line
KR102091176B1 (en) * 2018-06-22 2020-03-20 권선구 The plate heat exchanger of the welding device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100423409B1 (en) * 1999-09-15 2004-03-19 재단법인 포항산업과학연구원 Apparatus for welding the sheet metal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100423409B1 (en) * 1999-09-15 2004-03-19 재단법인 포항산업과학연구원 Apparatus for welding the sheet metal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106392421A (en) * 2016-11-13 2017-02-15 重庆华万伦电器有限公司 Auxiliary device for aluminum alloy plate welding
KR20190061205A (en) 2017-11-27 2019-06-05 (주) 동신모텍 Welding Jig for Thickness adjuster

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