A laser welding device for sheet metal processing

Abstract

The present invention provides a laser welding device for sheet metal processing, belonging to the technical field of welding devices, including a base, a U-shaped holding 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 part of the base. The U-shaped holding seat is movably arranged on the upper part of the base. The clamping assembly is installed on the side wall of the U-shaped holding seat and is used for clamping two workpieces to be welded inside the U-shaped holding seat. The laser welding gun and the adjusting assembly are arranged inside the L-shaped support plate. The driving assembly is installed on the side wall of the L-shaped support plate and is used for driving the adjusting assembly and the laser welding gun to move successively. Compared with the prior art, in the embodiment of the present invention, when welding two workpieces into one body, the welds of the two workpieces can be adjusted in advance, so that the length direction of the welds is consistent with the moving path of the laser welding gun, thereby improving the welding effect and welding quality.

Description

Technical Field

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

[0002] Currently, when laser welding sheet metal workpieces, most of them place two groups of sheet metal workpieces to be welded on a welding table and use a clamping mechanism to clamp them. After the two groups of sheet metal workpieces are clamped, a welding gap is formed, and then a driving mechanism is used to drive a laser welding gun to move along the welding gap of the two groups of sheet metal workpieces, so as to weld the two groups of sheet metal workpieces into one body.

[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 formed welding gap is prone to shift from the moving path of the laser welding gun in the length direction, resulting in the laser welding gun being unable to accurately move along the welding gap, uneven distribution of welding points, and further affecting the welding quality and welding effect of the sheet metal workpieces. Summary of the Invention

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

[0005] To solve the above technical problem, the present invention provides the following technical solutions:

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

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

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

[0009] The clamping assembly is installed 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 adjusting assembly are arranged inside the L-shaped support plate.

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

[0012] When the adjusting assembly 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.

[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 lead screw.

[0014] The motor is fixedly installed on the side wall of the L-shaped support plate. The incomplete gear is installed at the output end of the motor. The first lead screw is rotatably arranged on the side wall of the L-shaped support plate. The first lead screw is located below the incomplete gear. The first sleeve is sleeved outside the first lead screw and is in threaded cooperation with the first lead screw. The first transmission gear is fixedly arranged outside the first lead screw and can be meshed with the incomplete gear.

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

[0016] The adjusting rod is arranged on one side of the U-shaped holding seat and keeps a vertical distribution. 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 arranged on the side wall of the L-shaped support plate. The first guide rod penetrates through the second connecting rod and is in movable cooperation with the second connecting rod.

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

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

[0020] The second lead screw is fixedly installed on the side wall of the L-shaped support plate. The second lead screw is located above the incomplete gear. The second sleeve is sleeved outside the second lead screw and is in threaded cooperation with the second lead screw. The second transmission gear is fixedly arranged outside the second lead screw and can be meshed with the incomplete gear. One end of the first connecting rod away from the laser welding torch is fixedly connected to the second sleeve.

[0021] As a further improvement of the present invention: A second guide rod is fixedly arranged on the side wall of the L-shaped support plate. The second guide rod penetrates through the first connecting rod and is in movable cooperation with the first connecting rod.

[0022] As a further improvement of the present invention: A rotating rod is rotatably arranged at the bottom of the U-shaped holding seat. A slider is fixedly arranged at the bottom of the rotating rod. A guide rail is fixedly arranged on the upper part of the base. The slider is in sliding cooperation with the guide rail.

[0023] As a further improvement of the present invention: Two groups of oppositely distributed bottom plates are fixedly arranged on the inner wall of the U-shaped holding seat. A support plate is fixedly arranged at the upper edge of the U-shaped holding seat.

[0024] The clamping assembly includes a handle, a screw rod, and a pressing plate. The screw rod vertically penetrates the support plate and is in threaded cooperation with the support plate. The handle is arranged at the upper end of the screw rod, and the pressing plate is arranged at the bottom of the screw rod.

[0025] As a further improvement of the present invention: a top support assembly is further arranged on the upper part of the base. 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 top support and fix the U-shaped holding seat.

[0026] As a further improvement of the present invention: the top support assembly includes 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 below the U-shaped holding seat, and the other end extends outside 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, and is used to provide elastic support for the V-shaped plate.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] In the embodiment of the present invention, when it is necessary to weld two groups of workpieces into one body, the two groups of workpieces can be placed inside the U-shaped holding seat and clamped by the clamping assembly. Subsequently, the driving assembly drives the adjusting assembly to move. When the adjusting assembly moves, it adjusts the two groups of workpieces 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 body. Compared with the prior art, when welding two groups of workpieces into one body, the weld 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. Description of the Drawings

[0030] Figure 1 Structural schematic of a laser welding device for sheet metal processing Figure 1 ;

[0031] Figure 2 Structural schematic of a laser welding device for sheet metal processing Figure 2 ;

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

[0033] Figure 4 For Figure 1 Enlarged schematic diagram of area A in

[0034] In the figure: 10 - base, 101 - L-shaped support 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 rod, 303 - pressing plate, 40 - laser welding gun, 401 - first connecting rod, 50 - adjusting assembly, 501 - second connecting rod, 502 - adjusting rod, 60 - driving assembly, 601 - incomplete gear, 602 - first driving gear, 603 - first sleeve, 604 - first lead screw, 605 - second driving gear, 606 - second sleeve, 607 - second lead screw, 70 - top support assembly, 701 - push plate, 702 - V-shaped top support plate, 703 - elastic member. Detailed implementation manners

[0035] The technical solutions of the present invention will be further described in detail below in conjunction with the specific implementation manners.

[0036] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0037] Please refer to Figure 1 and Figure 2 , this 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 support plate 101 is fixedly arranged on the upper part of the base 10. 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 workpieces to be welded inside the U-shaped holding seat 20. The laser welding gun 40 and the adjusting assembly 50 are arranged inside the L-shaped support plate 101. The driving assembly 60 is installed on the side wall of the L-shaped support 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 workpieces so that the length of the weld formed by the two workpieces is consistent with the moving path of the laser welding gun 40.

[0038] When it is necessary to weld two sets of workpieces into one, the two sets of workpieces can be placed inside the U-shaped holding seat 20 and clamped by the clamping assembly 30. Subsequently, the driving assembly 60 drives the adjusting assembly 50 to move. When the adjusting assembly 50 moves, it adjusts the two sets of workpieces so that the length of the weld formed by the two sets 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, and the laser welding gun 40 moves along the length direction of the weld of the two sets of workpieces, thereby welding the two sets of workpieces into one.

[0039] Please refer to 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 lead screw 604. The motor is fixedly installed on the side wall of the L-shaped support plate 101. The incomplete gear 601 is installed at the output end of the motor. The first lead screw 604 is rotatably arranged on the side wall of the L-shaped support plate 101. The first lead screw 604 is located below the incomplete gear 601. The first sleeve 603 is sleeved outside the first lead screw 604 and is in threaded cooperation with the first lead screw 604. The first transmission gear 602 is fixedly arranged outside the first lead screw 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 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 sets 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 sets of workpieces is aligned with the adjusting rod 502. Then, the motor drives the incomplete gear 601 to rotate, and drives the first lead screw 604 to rotate through the meshing action between the incomplete gear 601 and the first transmission gear 602. When the first lead screw 604 rotates, it drives the first sleeve 603 to move along the length direction of the first lead screw 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 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 sets 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 two sets of workpieces complete the attitude adjustment. At this time, the weld formed between the two sets of workpieces is consistent with the subsequent moving path of the laser welding gun 40 in the length direction.

[0041] Please refer to Figure 1, in one embodiment, a first guide rod 102 is fixedly arranged on the side wall of the L-shaped support plate 101, and the first guide rod 102 penetrates through the second connecting rod 501 and is movably matched with the second connecting rod 501.

[0042] Through the movable cooperation between the second connecting rod 501 and the first guide rod 102, when the first lead screw 604 rotates, it can stably drive the first sleeve 603, the second connecting rod 501 and the adjusting rod 502 to move, so as to smoothly adjust the weld formed by the two groups of workpieces.

[0043] Please refer to Figure 2 , in one embodiment, a first connecting rod 401 is fixedly arranged on one side of the laser welding torch 40. The driving assembly 60 further includes a second transmission gear 605, a second sleeve 606 and a second lead screw 607. The second lead screw 607 is fixedly installed on the side wall of the L-shaped support plate 101. The second lead screw 607 is located above the incomplete gear 601. The second sleeve 606 is sleeved outside the second lead screw 607 and is in threaded cooperation with the second lead screw 607. The second transmission gear 605 is fixedly arranged outside the second lead screw 607 and can be meshed with the incomplete gear 601. One end of the first connecting rod 401 away from the laser welding torch 40 is fixedly connected to the second sleeve 606.

[0044] After the incomplete gear 601 is engaged with the first transmission gear 602 and drives the adjusting rod 502 to move out from the other end of the weld, the incomplete gear 601 is disengaged from the first transmission gear 602. At the same time, the incomplete gear 601 enters the engaged state with the second transmission gear 605, thereby driving the second lead screw 607 to rotate. When the second lead screw 607 rotates, it drives the second sleeve 606 to move along the length direction of the second lead screw 607 through the threaded cooperation with the second sleeve 606. The second sleeve 606 drives the laser welding torch 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 torch 40 at this time, the laser welding torch 40 can accurately weld the two groups of workpieces into one body when moving.

[0045] Please refer to Figure 2 , in one embodiment, a second guide rod 103 is fixedly arranged on the side wall of the L-shaped support plate 101. The second guide rod 103 penetrates through the first connecting rod 401 and is movably matched with the first connecting rod 401.

[0046] Through the movable cooperation between the first connecting rod 401 and the second guide rod 103, when the second lead screw 607 rotates, it can stably drive the second sleeve 606, the first connecting rod 401 and the laser welding torch 40 to move, so as to perform stable welding on the two groups of workpieces formed.

[0047] Please refer toFigure 2 and Figure 3 In one embodiment, a rotating rod 202 is rotatably provided at the bottom of the U-shaped placing seat 20. A slider 203 is fixedly provided at the bottom of the rotating rod 202. A guide rail 104 is fixedly provided on the upper part of the base 10. The slider 203 is slidably engaged with the guide rail 104.

[0048] When the adjusting rod 502 enters the inside of the weld from one end of the weld and moves along the inside of the weld, the two workpieces are squeezed by the adjusting rod 502, and thus the U-shaped placing seat 20 can be driven to rotate relative to the rotating rod 202. At the same time, the slider 203 slides adaptively along the guide rail 104, so that the U-shaped placing seat 20 moves adaptively along the upper part of the base 10. Through the above-mentioned rotation and movement of the U-shaped placing seat 20, the two workpieces can be driven to rotate and move synchronously, so that the weld formed by the two workpieces is consistent with the subsequent movement path of the laser welding torch 40 in the length direction, so that the laser welding torch 40 can accurately weld the two workpieces together, thereby improving the welding effect.

[0049] Please refer to Figure 3 and Figure 4 In one embodiment, two sets of oppositely distributed bottom plates 201 are fixedly provided on the inner wall of the U-shaped placing seat 20. A support plate 204 is fixedly provided on the upper edge of the U-shaped placing seat 20. The clamping assembly 30 includes a handle 301, a screw rod 302 and a pressing disc 303. The screw rod 302 vertically penetrates through the support plate 204 and is in threaded cooperation with the support plate 204. The handle 301 is arranged at the upper end of the screw rod 302. The pressing disc 303 is arranged at the bottom of the screw rod 302.

[0050] By placing the workpiece on the upper part of the bottom plate 201 inside the U-shaped placing seat 20, then turning the handle 301, the screw rod 302 is driven to rotate. By the threaded cooperation between the screw rod 302 and the support plate 204, the pressing disc 303 is driven to move downward. The downward movement of the pressing disc 303 acts on the upper part of the workpiece, and thus the workpiece is pressed tightly on the upper part of the bottom plate 201, realizing the clamping and fixing of the workpiece.

[0051] Please refer to Figure 1 In one embodiment, a top support assembly 70 is further provided on the upper part of the base 10. After the adjusting rod 502 is removed from the other end of the weld to complete the adjustment of the weld, the top support assembly 70 is used to top support and fix the U-shaped placing seat 20, so that the U-shaped placing seat 20 can stably support the two workpieces, avoiding the shaking of the two workpieces driven by the U-shaped placing seat 20 when the laser welding torch 40 subsequently welds the two workpieces, thereby improving the welding effect.

[0052] Please refer to Figure 1 and Figure 2, in 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 disposed on the upper part of the base 10. One end of the V-shaped plate 702 extends below the U-shaped storage seat 20, and the other end extends outside the U-shaped storage 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 for providing elastic support to the V-shaped plate 702.

[0053] Initially, due to the elastic support of the elastic member 703 on the V-shaped plate 702, the end of the V-shaped plate 702 extending below the U-shaped storage seat 20 does not contact the bottom wall of the U-shaped storage seat 20, enabling the U-shaped storage seat 20 to move flexibly along the upper part of the base 10, facilitating the alignment of one end of the weld seam with the adjusting rod 502 and the adjustment of the adjusting rod 502 for the weld seam. When the adjusting rod 502 is removed from the other end of the weld seam, 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 extending below the U-shaped storage seat 20 moves upward and acts on the bottom wall of the U-shaped storage seat 20 to support the U-shaped storage seat 20 and achieve the limitation of the U-shaped storage seat 20.

[0054] In one embodiment, the elastic member 703 can be a spring or a metal elastic sheet, and there is no limitation here.

[0055] In the embodiment of the present invention, when two groups of workpieces need to be welded together, the two groups of workpieces can be placed inside the U-shaped storage seat 20 and clamped by the clamping assembly 30. Subsequently, the driving assembly 60 drives the adjusting assembly 50 to move. When the adjusting assembly 50 moves, it adjusts the two groups of workpieces so that the length of the weld seam formed by the two groups of workpieces is consistent with the subsequent moving path of the laser welding torch 40. Then, the driving assembly 60 drives the laser welding torch 40 to move, and the laser welding torch 40 moves along the length direction of the weld seam of the two groups of workpieces, thereby welding the two groups of workpieces together. Compared with the prior art, when welding two groups of workpieces together, the weld seam of the two groups of workpieces can be adjusted in advance so that the length direction of the weld seam is consistent with the moving path of the laser welding torch 40, thereby improving the welding effect and welding quality.

[0056] The above has described the preferred embodiments of the present invention in detail, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made 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 drive 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. When the adjusting assembly 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. 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 on 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. The upper part of the base is also provided with a supporting assembly, which is used to support and fix the U-shaped containing seat after the adjusting rod is moved out from the other end of the weld to adjust the weld. 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, for providing elastic support for the V-shaped plate. When the adjusting rod is moved out from the other end of the weld, the adjusting rod acts on the push plate, thereby driving the V-shaped plate to rotate relative to the base. When the V-shaped plate rotates, the end thereof extending below the U-shaped holding seat moves upward and acts on the bottom wall of the U-shaped holding seat to support the U-shaped holding seat, thereby achieving the limit position of the U-shaped holding seat.

2. A laser welding device for sheet metal processing according to claim 1, 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.

3. The laser welding device for sheet metal processing according to claim 1, 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.

4. A laser welding device for sheet metal processing according to claim 3, 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.

5. 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.

6. 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.

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