Laser welding device for sheet metal machining

Abstract

The invention provides a laser welding device for sheet metal working, and belongs to the technical field of welding devices.The laser welding device comprises a base, a U-shaped containing seat, a clamping assembly, a laser welding gun, an adjusting assembly and a driving assembly, an L-shaped support plate is fixedly arranged on the upper portion of the base, the U-shaped containing seat is movably arranged on the upper portion of the base, and the clamping assembly is arranged on the upper portion of the L-shaped support plate; the clamping assembly is installed on the side wall of the U-shaped containing base and used for clamping two sets of workpieces to be welded to the inner side of the U-shaped containing base, the laser welding gun and the adjusting assembly are arranged on the inner side of the L-shaped support plate, the driving assembly is installed on the side wall of the L-shaped support plate, and the adjusting assembly is arranged on the inner side of the L-shaped support plate. The driving assembly is used for driving the adjusting assembly and the laser welding gun to move in sequence. Compared with the prior art, when the two sets of workpieces are welded into a whole, the welding seams of the two sets of workpieces can be adjusted in advance, the length direction of the welding seams is kept consistent with the moving path of the laser welding gun, and then the welding effect and the welding quality are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of welding devices, in particular to a laser welding device for sheet metal processing. Background Art

[0002] At present, when laser welding is performed on sheet metal workpieces, two groups of sheet metal workpieces to be welded are mostly placed on a welding table and clamped by a clamping mechanism. After the two groups of sheet metal workpieces are clamped, a welding gap is formed. Then, the laser welding gun is driven by a driving mechanism to move along the welding gap between the two groups of sheet metal workpieces, thereby welding the two groups of sheet metal workpieces into one.

[0003] However, since the clamping mechanism and the laser welding gun are independent of each other, after the two groups of sheet metal workpieces are clamped, the welding gap formed is easily offset from the moving path of the laser welding gun in the length direction, resulting in the laser welding gun being unable to move accurately along the welding gap, causing uneven distribution of welds, thereby affecting the welding quality and welding effect of the sheet metal workpieces. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a laser welding device for sheet metal processing.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A laser welding device for sheet metal processing, comprising a base, a U-shaped receiving seat, a clamping assembly, a laser welding gun, an adjustment assembly and a driving assembly.

[0007] An L-shaped bracket plate is fixedly arranged on the upper part of the base.

[0008] The U-shaped containing seat is movably arranged on the upper part of the base.

[0009] The clamping assembly is mounted on the side wall of the U-shaped holding seat and is used to clamp two groups of workpieces to be welded inside the U-shaped holding seat.

[0010] The laser welding gun and the adjustment assembly are arranged on the inner side of the L-shaped bracket plate.

[0011] The driving assembly is mounted on the side wall of the L-shaped bracket plate and is used to drive the adjusting assembly and the laser welding gun to move successively.

[0012] The adjusting assembly is used to adjust the two groups of workpieces when it moves, so that the length of the welds formed by the two groups of workpieces is consistent with the moving path of the laser welding gun.

[0013] As a further improvement of the present invention: the driving assembly includes a motor, an incomplete gear, a first transmission gear, a first sleeve and a first screw rod,

[0014] The motor is fixedly mounted on the side wall of the L-shaped bracket plate, the incomplete gear is mounted on the output end of the motor, the first screw is rotatably mounted on the side wall of the L-shaped bracket plate, the first screw is located below the incomplete gear, the first sleeve is sleeved outside the first screw and is threadedly matched with the first screw, the first transmission gear is fixedly mounted outside the first screw and can mesh with the incomplete gear,

[0015] The adjusting assembly comprises a second connecting rod and an adjusting rod.

[0016] The adjusting rod is arranged at one side of the U-shaped containing seat and is kept vertically distributed; one end of the second connecting rod is fixedly connected to the adjusting rod, and the other end is fixedly connected to the first sleeve.

[0017] As a further improvement of the present invention: a first guide rod is fixedly provided on the side wall of the L-shaped bracket plate, and the first guide rod passes through the second connecting rod and movably cooperates with the second connecting rod.

[0018] As a further improvement of the present invention: a first connecting rod is fixedly provided on one side of the laser welding gun.

[0019] The driving assembly also includes a second transmission gear, a second sleeve and a second screw rod.

[0020] The second screw rod is fixedly mounted on the side wall of the L-shaped bracket plate, the second screw rod is located above the incomplete gear, the second sleeve is sleeved on the outside of the second screw rod and is threadedly matched with the second screw rod, the second transmission gear is fixedly arranged on the outside of the second screw rod and can engage with the incomplete gear, and the end of the first connecting rod away from the laser welding gun is fixedly connected to the second sleeve.

[0021] As a further improvement of the present invention: a second guide rod is fixedly provided on the side wall of the L-shaped bracket plate, and the second guide rod passes through the first connecting rod and movably cooperates with the first connecting rod.

[0022] As a further improvement of the present invention: a rotating rod is rotatably provided at the bottom of the U-shaped containing seat, a sliding block is fixedly provided at the bottom of the rotating rod, a guide rail is fixedly provided at the upper part of the base, and the sliding block slidably cooperates with the guide rail.

[0023] As a further improvement of the present invention: the inner wall of the U-shaped holding seat is fixedly provided with two sets of bottom plates which are relatively distributed, and the upper edge of the U-shaped holding seat is fixedly provided with a support plate.

[0024] The clamping assembly includes a handle, a screw and a pressure plate. The screw vertically penetrates the support plate and is threadedly matched with the support plate. The handle is arranged at the upper end of the screw, and the pressure plate is arranged at the bottom of the screw.

[0025] As a further improvement of the present invention: a top support assembly is also provided on the upper part of the base, and after the adjusting rod is moved out from the other end of the weld to complete the adjustment of the weld, the top support assembly is used to support and fix the U-shaped containing seat.

[0026] As a further improvement of the present invention: the supporting assembly comprises a push plate, a V-shaped plate and an elastic member.

[0027] The V-shaped plate is hingedly arranged on the upper part of the base, one end of the V-shaped plate extends to the bottom of the U-shaped holding seat, and the other end extends to the outside of the U-shaped holding seat and is fixedly connected to the push plate, one end of the elastic member is connected to the V-shaped plate, and the other end is connected to the base, which is used to provide elastic support for the V-shaped plate.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] In an embodiment of the present invention, when it is necessary to weld two groups of workpieces into one, the two groups of workpieces can be placed inside the U-shaped holding seat and clamped by a clamping assembly. Then, the driving assembly drives the adjusting assembly to move, and the adjusting assembly adjusts the two groups of workpieces when moving, so that the length of the weld formed by the two groups of workpieces is consistent with the subsequent moving path of the laser welding gun. Then, the driving assembly drives the laser welding gun to move, and the laser welding gun moves along the length direction of the weld of the two groups of workpieces, thereby welding the two groups of workpieces into one. Compared with the prior art, when welding the two groups of workpieces into one, the welds of the two groups of workpieces can be adjusted in advance, so that the length direction of the weld is consistent with the moving path of the laser welding gun, thereby improving the welding effect and welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the structure of a laser welding device for sheet metal processing Figure 1 ;

[0031] Figure 2 A schematic diagram of the structure of a laser welding device for sheet metal processing Figure 2 ;

[0032] Figure 3 It is a schematic diagram of the structure of a U-shaped holding seat in a laser welding device for sheet metal processing;

[0033] Figure 4 for Figure 1 A magnified schematic diagram of the middle A area;

[0034] In the figure: 10-base, 101-L-shaped bracket plate, 102-first guide rod, 103-second guide rod, 104-guide rail, 20-U-shaped holding seat, 201-bottom plate, 202-rotating rod, 203-slider, 204-support plate, 30-clamping assembly, 301-handle, 302-screw, 303-pressure plate, 40-laser welding gun, 40-first connecting rod, 50-adjusting assembly, 501-second connecting rod, 502-adjusting rod, 60-driving assembly, 601-incomplete gear, 602-first transmission gear, 603-first sleeve, 604-first screw rod, 605-second transmission gear, 606-second sleeve, 607-second screw rod, 70-top support assembly, 701-push plate, 702-V-type top support plate, 703-elastic member. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] See also Figure 1 as well as Figure 2 The present embodiment provides a laser welding device for sheet metal processing, including a base 10, a U-shaped holding seat 20, a clamping assembly 30, a laser welding gun 40, an adjusting assembly 50 and a driving assembly 60. An L-shaped bracket plate 101 is fixedly arranged on the upper part of the base 10, and the U-shaped holding seat 20 is movably arranged on the upper part of the base 10. The clamping assembly 30 is installed on the side wall of the U-shaped holding seat 20, and is used to clamp two groups of workpieces to be welded on the inner side of the U-shaped holding seat 20. The laser welding gun 40 and the adjusting assembly 50 are arranged on the inner side of the L-shaped bracket plate 101. The driving assembly 60 is installed on the side wall of the L-shaped bracket plate 101, and is used to drive the adjusting assembly 50 and the laser welding gun 40 to move successively. When the adjusting assembly 50 moves, it is used to adjust the two groups of workpieces so that the length of the weld formed by the two groups of workpieces is consistent with the moving path of the laser welding gun 40.

[0038] When two groups of workpieces need to be welded together, the two groups of workpieces can be placed on the inner side of the U-shaped holding seat 20 and clamped by the clamping assembly 30. Then, the driving assembly 60 drives the adjusting assembly 50 to move. When the adjusting assembly 50 moves, the two groups of workpieces are adjusted so that the length of the weld formed by the two groups of workpieces is consistent with the subsequent moving path of the laser welding gun 40. Then, the driving assembly 60 drives the laser welding gun 40 to move. The laser welding gun 40 moves along the length direction of the weld between the two groups of workpieces, thereby welding the two groups of workpieces together.

[0039] See also Figure 1 In one embodiment, the driving assembly 60 includes a motor (not shown in the figure), an incomplete gear 601, a first transmission gear 602, a first sleeve 603 and a first screw rod 604. The motor is fixedly mounted on the side wall of the L-shaped bracket plate 101, and the incomplete gear 601 is mounted on the output end of the motor. The first screw rod 604 is rotatably arranged on the side wall of the L-shaped bracket plate 101. The first screw rod 604 is located below the incomplete gear 601. The first sleeve 603 is sleeved on the outside of the first screw rod 604 and threadedly cooperates with the first screw rod 604. The first transmission gear 602 is fixedly arranged on the outside of the first screw rod 604 and can mesh with the incomplete gear 601. The adjusting assembly 50 includes a second connecting rod 501 and an adjusting rod 502. The adjusting rod 502 is arranged on one side of the U-shaped holding seat 20 and is kept vertically distributed. One end of the second connecting rod 501 is fixedly connected to the adjusting rod 502, and the other end is fixedly connected to the first sleeve 603.

[0040] After the clamping assembly 30 clamps the two groups of workpieces inside the U-shaped holding seat 20, the staff can adjust the position of the U-shaped holding seat 20 so that one end of the weld of the two groups of workpieces is aligned with the adjusting rod 502, and then the motor drives the incomplete gear 601 to rotate, and the meshing action of the incomplete gear 601 and the first transmission gear 602 drives the first screw rod 604 to rotate. When the first screw rod 604 rotates, it drives the first sleeve 603 to move along the length direction of the first screw rod 604 through the threaded cooperation with the first sleeve 603. The first sleeve 603 drives the adjusting rod 502 to move synchronously through the second connecting rod 501. When the adjusting rod 502 moves, it enters the inside of the weld from one end of the weld and moves along the inner direction of the weld. During the movement of the adjusting rod 502, it acts on the two groups of workpieces so that the U-shaped holding seat 20 moves adaptively along the upper part of the base 10. When the adjusting rod 502 moves out from the other end of the weld, the posture adjustment of the two groups of workpieces is completed. At this time, the weld formed between the two groups of workpieces is consistent with the subsequent movement path of the laser welding gun 40 in the length direction.

[0041] See also Figure 1In one embodiment, a first guide rod 102 is fixedly disposed on the side wall of the L-shaped bracket plate 101 , and the first guide rod 102 passes through the second connecting rod 501 and movably cooperates with the second connecting rod 501 .

[0042] Through the active cooperation between the second connecting rod 501 and the first guide rod 102, the first screw rod 604 can smoothly drive the first sleeve 603, the second connecting rod 501 and the adjusting rod 502 to move when rotating, thereby smoothly adjusting the welds formed by the two groups of workpieces.

[0043] See also Figure 2 In one embodiment, a first connecting rod 401 is fixedly provided on one side of the laser welding gun 40, and the driving assembly 60 also includes a second transmission gear 605, a second sleeve 606 and a second screw rod 607, the second screw rod 607 is fixedly installed on the side wall of the L-shaped bracket plate 101, the second screw rod 607 is located above the incomplete gear 601, the second sleeve 606 is sleeved on the outside of the second screw rod 607 and is threadedly matched with the second screw rod 607, the second transmission gear 605 is fixedly provided on the outside of the second screw rod 607 and can engage with the incomplete gear 601, and the end of the first connecting rod 401 away from the laser welding gun 40 is fixedly connected to the second sleeve 606.

[0044] After the incomplete gear 601 is meshed with the first transmission gear 602 and drives the adjustment rod 502 to move out from the other end of the weld, the incomplete gear 601 is disengaged from the first transmission gear 602, and at the same time, the incomplete gear 601 is meshed with the second transmission gear 605, thereby driving the second screw rod 607 to rotate. When the second screw rod 607 rotates, it drives the second sleeve 606 to move along the length direction of the second screw rod 607 through the threaded cooperation with the second sleeve 606. The second sleeve 606 drives the laser welding gun 40 to move synchronously through the first connecting rod 401. Since the welds of the two groups of workpieces have been adjusted to be consistent with the moving path of the laser welding gun 40 at this time, the laser welding gun 40 can accurately weld the two groups of workpieces into one when it moves.

[0045] See also Figure 2 In one embodiment, a second guide rod 103 is fixedly disposed on the side wall of the L-shaped bracket plate 101 , and the second guide rod 103 passes through the first connecting rod 401 and movably cooperates with the first connecting rod 401 .

[0046] Through the active cooperation between the first connecting rod 401 and the second guide rod 103, the second screw rod 607 can smoothly drive the second sleeve 606, the first connecting rod 401 and the laser welding gun 40 to move when rotating, thereby forming stable welding for the two groups of workpieces.

[0047] See also Figure 2 as well as Figure 3 In one embodiment, a rotating rod 202 is rotatably provided at the bottom of the U-shaped holding seat 20, a slider 203 is fixedly provided at the bottom of the rotating rod 202, a guide rail 104 is fixedly provided at the top of the base 10, and the slider 203 slidably cooperates with the guide rail 104.

[0048] When the adjusting rod 502 enters the weld from one end of the weld and moves along the weld, the two groups of workpieces are squeezed by the adjusting rod 502, which can drive the U-shaped holding seat 20 to rotate compared to the rotating rod 202. At the same time, the slider 203 slides adaptively along the guide rail 104, so that the U-shaped holding seat 20 moves adaptively along the upper part of the base 10. The above-mentioned rotation and movement of the U-shaped holding seat 20 can drive the two groups of workpieces to rotate and move synchronously, so that the welds formed by the two groups of workpieces are consistent with the subsequent movement path of the laser welding gun 40 in the length direction, so that the laser welding gun 40 can accurately weld the two groups of workpieces into one, thereby improving the welding effect.

[0049] See also Figure 3 as well as Figure 4 In one embodiment, two groups of relatively distributed bottom plates 201 are fixedly provided on the inner wall of the U-shaped holding seat 20, a support plate 204 is fixedly provided on the upper edge of the U-shaped holding seat 20, the clamping assembly 30 includes a handle 301, a screw rod 302 and a pressure plate 303, the screw rod 302 vertically penetrates the support plate 204 and is threadedly engaged with the support plate 204, the handle 301 is arranged at the upper end of the screw rod 302, and the pressure plate 303 is arranged at the bottom of the screw rod 302.

[0050] The workpiece is placed on the upper part of the bottom plate 201 inside the U-shaped holding seat 20, and then the handle 301 is turned to drive the screw 302 to rotate. The screw 302 and the support plate 204 cooperate with each other to drive the pressure plate 303 to move downward. The pressure plate 303 moves downward to act on the upper part of the workpiece, and then the workpiece is pressed tightly against the upper part of the bottom plate 201 to achieve clamping and fixing of the workpiece.

[0051] See also Figure 1 In one embodiment, a supporting assembly 70 is further provided on the upper portion of the base 10. After the adjusting rod 502 is moved out from the other end of the weld to adjust the weld, the supporting assembly 70 is used to support and fix the U-shaped holding seat 20, so that the U-shaped holding seat 20 can provide stable support for the two groups of workpieces, thereby preventing the U-shaped holding seat 20 from causing the two groups of workpieces to shake when the laser welding gun 40 subsequently welds the two groups of workpieces, thereby improving the welding effect.

[0052] See also Figure 1 as well as Figure 2In one embodiment, the top support assembly 70 includes a push plate 701, a V-shaped plate 702 and an elastic member 703. The V-shaped plate 702 is hingedly arranged on the upper part of the base 10. One end of the V-shaped plate 702 extends to the bottom of the U-shaped holding seat 20, and the other end extends to the outside of the U-shaped holding seat 20 and is fixedly connected to the push plate 701. One end of the elastic member 703 is connected to the V-shaped plate 702, and the other end is connected to the base 10, so as to provide elastic support for the V-shaped plate 702.

[0053] Initially, through the elastic support of the elastic member 703 on the V-shaped plate 702, the end of the V-shaped plate 702 extending to the bottom of the U-shaped receiving seat 20 will not contact the bottom wall of the U-shaped receiving seat 20, so that the U-shaped receiving seat 20 can be flexibly moved along the upper part of the base 10, so as to smoothly align one end of the weld with the adjusting rod 502, and at the same time facilitate the adjusting rod 502 to adjust the weld; when the adjusting rod 502 is moved out from the other end of the weld, the adjusting rod 502 can act on the push plate 701, thereby driving the V-shaped plate 702 to rotate relative to the base 10. When the V-shaped plate 702 rotates, the end thereof extending to the bottom of the U-shaped receiving seat 20 moves upward and acts on the bottom wall of the U-shaped receiving seat 20, so as to support the U-shaped receiving seat 20 and realize the limiting of the U-shaped receiving seat 20.

[0054] In one embodiment, the elastic member 703 may be a spring or a metal spring, which is not limited here.

[0055] In an embodiment of the present invention, when it is necessary to weld two groups of workpieces into one, the two groups of workpieces can be placed on the inner side of the U-shaped holding seat 20 and clamped by the clamping assembly 30. Then, the driving assembly 60 drives the adjusting assembly 50 to move. When the adjusting assembly 50 moves, the two groups of workpieces are adjusted so that the length of the weld formed by the two groups of workpieces is consistent with the subsequent moving path of the laser welding gun 40. Then, the driving assembly 60 drives the laser welding gun 40 to move. The laser welding gun 40 moves along the length direction of the weld of the two groups of workpieces, thereby welding the two groups of workpieces into one. Compared with the prior art, when welding the two groups of workpieces into one, the welds of the two groups of workpieces can be adjusted in advance so that the length direction of the weld is consistent with the moving path of the laser welding gun 40, thereby improving the welding effect and welding quality.

[0056] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A laser welding device for sheet metal processing, characterized in that: It includes a base, a U-shaped holder, a clamping assembly, a laser welding gun, an adjustment assembly and a driving assembly. An L-shaped bracket plate is fixedly arranged on the upper part of the base. The U-shaped containing seat is movably arranged on the upper part of the base. The clamping assembly is mounted on the side wall of the U-shaped holding seat and is used to clamp two groups of workpieces to be welded inside the U-shaped holding seat. The laser welding gun and the adjustment assembly are arranged on the inner side of the L-shaped bracket plate. The driving assembly is mounted on the side wall of the L-shaped bracket plate and is used to drive the adjusting assembly and the laser welding gun to move successively. The adjusting assembly is used to adjust the two groups of workpieces when it moves, so that the length of the welds formed by the two groups of workpieces is consistent with the moving path of the laser welding gun.

2. A laser welding device for sheet metal processing according to claim 1, characterized in that: The driving assembly includes a motor, an incomplete gear, a first transmission gear, a first sleeve and a first screw rod. The motor is fixedly mounted on the side wall of the L-shaped bracket plate, the incomplete gear is mounted on the output end of the motor, the first screw is rotatably mounted on the side wall of the L-shaped bracket plate, the first screw is located below the incomplete gear, the first sleeve is sleeved outside the first screw and is threadedly matched with the first screw, the first transmission gear is fixedly mounted outside the first screw and can mesh with the incomplete gear, The adjusting assembly comprises a second connecting rod and an adjusting rod. The adjusting rod is arranged at one side of the U-shaped containing seat and is kept vertically distributed; one end of the second connecting rod is fixedly connected to the adjusting rod, and the other end is fixedly connected to the first sleeve.

3. A laser welding device for sheet metal processing according to claim 2, characterized in that: A first guide rod is fixedly arranged on the side wall of the L-shaped bracket plate, and the first guide rod passes through the second connecting rod and movably cooperates with the second connecting rod.

4. The laser welding device for sheet metal processing according to claim 2, characterized in that: A first connecting rod is fixedly arranged on one side of the laser welding gun. The driving assembly also includes a second transmission gear, a second sleeve and a second screw rod. The second screw rod is fixedly mounted on the side wall of the L-shaped bracket plate, the second screw rod is located above the incomplete gear, the second sleeve is sleeved on the outside of the second screw rod and is threadedly matched with the second screw rod, the second transmission gear is fixedly arranged on the outside of the second screw rod and can engage with the incomplete gear, and the end of the first connecting rod away from the laser welding gun is fixedly connected to the second sleeve.

5. The laser welding device for sheet metal processing according to claim 4, characterized in that: A second guide rod is fixedly arranged on the side wall of the L-shaped bracket plate, and the second guide rod passes through the first connecting rod and movably cooperates with the first connecting rod.

6. The laser welding device for sheet metal processing according to claim 1, characterized in that: A rotating rod is rotatably arranged at the bottom of the U-shaped containing seat, a sliding block is fixedly arranged at the bottom of the rotating rod, a guide rail is fixedly arranged at the upper part of the base, and the sliding block is slidably matched with the guide rail.

7. The laser welding device for sheet metal processing according to claim 1, characterized in that: The inner wall of the U-shaped holding seat is fixedly provided with two sets of bottom plates that are relatively distributed, and the upper edge of the U-shaped holding seat is fixedly provided with a support plate. The clamping assembly includes a handle, a screw and a pressure plate. The screw vertically penetrates the support plate and is threadedly matched with the support plate. The handle is arranged at the upper end of the screw, and the pressure plate is arranged at the bottom of the screw.

8. The laser welding device for sheet metal processing according to claim 2, characterized in that: A supporting assembly is also provided on the upper part of the base. After the adjusting rod is moved out from the other end of the weld to adjust the weld, the supporting assembly is used to support and fix the U-shaped containing seat.

9. The laser welding device for sheet metal processing according to claim 8, characterized in that: The supporting assembly includes a push plate, a V-shaped plate and an elastic member. The V-shaped plate is hingedly arranged on the upper part of the base, one end of the V-shaped plate extends to the bottom of the U-shaped holding seat, and the other end extends to the outside of the U-shaped holding seat and is fixedly connected to the push plate, one end of the elastic member is connected to the V-shaped plate, and the other end is connected to the base, which is used to provide elastic support for the V-shaped plate.

Images