Metal plate laser welding equipment

Abstract

The invention provides metal plate laser welding equipment, and belongs to the technical field of laser welding, the metal plate laser welding equipment comprises a bottom plate, a first driving assembly, two clamping assemblies, a sliding rod, a supporting assembly, a second driving assembly, a laser welding gun, an elastic assembly and a third driving assembly, the two clamping assemblies are movably arranged on the upper portion of the bottom plate, and the sliding rod is arranged on the sliding rod. The clamping assemblies are installed on the upper portion of the bottom plate and used for clamping two sets of metal plates to be welded, the first driving assembly is installed on the upper portion of the bottom plate and used for driving the two sets of clamping assemblies to move oppositely, a first support plate is fixedly arranged on the upper portion of the bottom plate, and the supporting assembly is arranged at the bottom of the first support plate. Compared with the prior art, when the welding surfaces of the two sets of metal plates needing to be welded are of the curved surface structures, adjustment can be conducted according to the moving path of the laser welding gun, so that the moving path of the laser welding gun is kept consistent with a curve welding seam, and therefore automatic welding of the two sets of metal plates with the welding surfaces of the curved surface structures is achieved.

Description

Technical Field

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

[0002] At present, in metal plate welding, laser welding can form high-quality joints with little impact on the metal plates, which can effectively reduce the probability of metal deformation and improve welding quality.

[0003] In the prior art, when welding two groups of metal plates into one, it is necessary to use a clamping mechanism to clamp the two groups of metal plates so that the two groups of metal plates are relatively distributed to form a welding gap, and then use a driving mechanism to drive the laser welding gun to move straight along the welding gap to weld the two groups of metal plates into one. However, in the actual welding process, the welding surface of the metal plate is not always a planar structure. The welding surface of the metal plate is sometimes a curved structure. When the welding surface of the metal plate to be welded is a curved structure, the welding gap formed by the two groups of metal plates corresponds to a curved structure. Therefore, when the driving mechanism drives the laser welding gun to move straight, the laser welding gun is obviously unable to effectively weld the weld of the curved structure. 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 metal plate laser welding device.

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

[0006] A metal plate laser welding device comprises a base plate, a first driving assembly, a clamping assembly, a slide bar, a supporting assembly, a second driving assembly, a laser welding gun, an elastic assembly and a third driving assembly.

[0007] The clamping assembly is provided with two groups, and the two groups of the clamping assemblies are movably arranged on the upper part of the bottom plate, and are used to clamp two groups of metal plates to be welded respectively.

[0008] The first driving assembly is mounted on the upper portion of the bottom plate and is used to drive the two groups of the clamping assemblies to move toward each other.

[0009] A first bracket plate is fixedly arranged on the upper part of the bottom plate, the support assembly is arranged at the bottom of the first bracket plate, the slide bars are arranged in a plurality of groups, the plurality of slide bars are sequentially distributed along the length direction of the support assembly, and the plurality of slide bars can slide along the width direction of the support assembly.

[0010] The second driving assembly is installed at the bottom of the first bracket plate, and is used to drive the supporting assembly to move upward.

[0011] One end of the elastic component is against the sliding rod, the laser welding gun is arranged at the lower part of the elastic component, and the third driving component is installed on the side wall of the first bracket plate to drive the laser welding gun and the elastic component to move along the weld between the two groups of metal plates.

[0012] As a further improvement of the present invention: the clamping assembly includes a support plate, a pressure plate, a second bracket plate, a screw and a hand wheel.

[0013] The second bracket plate is fixedly arranged on the upper edge of the support plate, the screw rod vertically penetrates the second bracket plate and is threadedly matched with the second bracket plate, the pressure plate is fixedly arranged on the bottom of the screw rod, and the first wheel is fixedly arranged on the upper part of the screw rod.

[0014] As a further improvement of the present invention: a support is fixedly provided on the upper portion of the bottom plate.

[0015] The first driving assembly includes a motor, a rotating shaft and a first slider.

[0016] The motor is fixedly mounted on one side of the support, and two groups of the first sliders are provided. The two groups of the first sliders are respectively fixedly arranged on the side walls of the support plate corresponding to the two groups of the clamping assemblies. Two groups of external threads with opposite rotation directions are arranged on the outside of the rotating shaft. One end of the rotating shaft is connected to the output end of the motor, and the other end passes through the two groups of the first sliders and is respectively threadedly matched with the two groups of the first sliders through the two groups of the external threads.

[0017] As a further improvement of the present invention: the support assembly includes a frame and guide rods, the guide rods are provided in a plurality of groups with the same number as the slide rods, the plurality of guide rods are fixedly arranged inside the frame, each group of guide rods laterally penetrates a group of slide rods and movably cooperates with the slide rods,

[0018] The second driving assembly is a hydraulic cylinder, which is fixedly mounted on the side wall of the first bracket plate, and the output end of the hydraulic cylinder is connected to the frame.

[0019] As a further improvement of the present invention: the elastic component includes a cylinder, a sleeve, a second slider, a telescopic rod, a U-shaped bracket and a roller.

[0020] The cylinder is fixedly arranged on one side of the second slider, the sleeve is arranged on the other side of the second slider, the piston rod of the cylinder passes through the second slider and is connected to the sleeve, one end of the telescopic rod extends to the inside of the sleeve and is telescopically matched with the sleeve, and the other end extends to the outside of the sleeve and is connected to the U-shaped bracket, the roller is rotatably arranged on the inner side of the U-shaped bracket, a spring for providing elastic support to the telescopic rod is arranged inside the sleeve, and the upper part of the laser welding gun is fixedly connected to the telescopic rod through the welding gun bracket,

[0021] The third driving assembly includes an external motor and a screw rod.

[0022] The external motor is fixedly mounted on the side wall of the first bracket plate, one end of the screw rod is connected to the output end of the external motor, and the other end passes through the second slider and is threadedly matched with the second slider.

[0023] As a further improvement scheme of the present invention: a rotating sleeve is rotatably provided on the side wall of each group of the sliding rods, and a caulking block is fixedly provided on the rotating sleeve. The caulking block is an isosceles triangle structure, and arc-shaped notches are opened on the two waist surfaces of the isosceles triangle, one of the arc-shaped notches is covered on the outer wall of the rotating sleeve and is fixedly connected to the rotating sleeve.

[0024] As a further improvement of the present invention: a top block is fixedly provided on the side wall of the first bracket plate.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] Compared with the prior art, the embodiments of the present invention can adjust the moving path of the laser welding gun when the welding surfaces of two groups of metal plates to be welded are curved structures, so that the moving path of the laser welding gun is consistent with the curved weld, thereby realizing automatic welding of two groups of metal plates with curved surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of a metal plate laser welding equipment Figure 1 ;

[0028] Figure 2 A schematic diagram of the structure of a metal plate laser welding equipment Figure 2 ;

[0029] Figure 3 It is a schematic diagram of the structure of a slide bar in a metal plate laser welding device;

[0030] Figure 4 for Figure 1 A magnified schematic diagram of the middle A area;

[0031] Figure 5for Figure 2 A magnified schematic diagram of the middle B area;

[0032] In the figure: 10-bottom plate, 101-support, 102-first bracket plate, 103-top block, 20-first drive assembly, 201-motor, 202-rotating shaft, 203-first slider, 204-external thread, 30-clamping assembly, 301-support plate, 302-clamping plate, 303-second bracket plate, 304-screw, 305-handwheel, 40-slide rod, 401-swivel sleeve, 402-caulking block, 50-support assembly, 501-frame, 502-guide rod, 60-second drive assembly, 70-laser welding gun, 701-welding gun bracket, 80-elastic assembly, 801-cylinder, 802-sleeve, 803-second slider, 804-telescopic rod, 805-U-shaped bracket, 806-roller, 90-third drive assembly. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0034] 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.

[0035] See also Figure 1 as well as Figure 2The present embodiment provides a metal plate laser welding device, including a base plate 10, a first driving assembly 20, a clamping assembly 30, a slide bar 40, a support assembly 50, a second driving assembly 60, a laser welding gun 70, an elastic assembly 80 and a third driving assembly 90. The clamping assembly 30 is provided with two groups, and the two groups of the clamping assemblies 30 are movably arranged on the upper part of the base plate 10, and are used to clamp two groups of metal plates to be welded respectively. The first driving assembly 20 is installed on the upper part of the base plate 10, and is used to drive the two groups of the clamping assemblies 30 to move toward each other. The upper part of the base plate 10 is fixedly provided with a first bracket plate 102, and the support assembly 50 is arranged on the At the bottom of the first bracket plate 102, the slide rod 40 is provided with several groups, and several of the slide rods 40 are distributed in sequence along the length direction of the support assembly 50, and several of the slide rods 40 can slide along the width direction of the support assembly 50. The second driving assembly 60 is installed at the bottom of the first bracket plate 102, and is used to drive the support assembly 50 to move upward. One end of the elastic assembly 80 is against the slide rod 40, and the laser welding gun 70 is arranged at the lower part of the elastic assembly 80. The third driving assembly 90 is installed on the side wall of the first bracket plate 102, and is used to drive the laser welding gun 70 and the elastic assembly 80 to move along the weld between the two groups of metal plates.

[0036] When it is necessary to weld two groups of metal plates into one, two groups of clamping assemblies 30 can be used to clamp the two groups of metal plates respectively, and then the two groups of clamping assemblies 30 are driven to move toward each other by the first driving assembly 20, thereby driving the two groups of metal plates to move toward each other. If the welding surface between the two groups of metal plates is a straight line structure, when the two groups of metal plates move toward each other, the welding surfaces of the two groups of metal plates act on the opposite sides of the plurality of slide bars 40, thereby clamping the plurality of slide bars 40. At this time, the plurality of slide bars 40 remain in a straight line, and then the second driving assembly 60 drives the supporting assembly 50 to move upward, thereby driving the plurality of slide bars 40 to move upward, and the lower ends of the plurality of slide bars 40 are removed from between the two groups of metal plates. Then, the third driving assembly 90 drives the laser welding gun 70 and the elastic assembly 80 to move along the welding gap of the metal plates. In this process, through the abutment between the elastic assembly 80 and the slide bar 40, the elastic assembly 80 can drive the laser welding gun 70 to move along the straight welding gap of the metal plates, thereby welding the metal plates with a straight line structure. Welding; on the contrary, if the welding surface between the two groups of metal plates is a curved structure, when the two groups of metal plates move toward each other, the welding surfaces of the two groups of metal plates act on the opposite sides of the plurality of slide bars 40, thereby pushing the plurality of slide bars 40 so that the plurality of slide bars 40 slide in the width direction compared to the support assembly 50. When the welding surfaces of the two groups of metal plates are clamped on the plurality of slide bars 40, the connecting line of the plurality of slide bars 40 at this time remains bent, and the bending shape is consistent with the welding curved surface of the metal plates. Subsequently, the second driving assembly 60 drives the support assembly 50 to move upward, thereby driving the plurality of slide bars 40 to move upward, and the lower ends of the plurality of slide bars 40 are removed from between the two groups of metal plates. Then, the laser welding gun 70 and the elastic assembly 80 are driven by the third driving assembly 90 to move along the welding gap of the metal plates. In this process, through the abutment between the elastic assembly 80 and the slide bar 40, the elastic assembly 80 adaptively expands and contracts, thereby making the moving path of the laser welding gun 70 consistent with the welding curved surface of the metal plates, thereby performing welding on metal plates with curved surfaces.

[0037] See also Figure 1 In one embodiment, the clamping assembly 30 includes a support plate 301, a pressure plate 302, a second bracket plate 303, a screw 304 and a handwheel 305. The second bracket plate 303 is fixedly arranged on the upper edge of the support plate 301, the screw 304 vertically penetrates the second bracket plate 303 and is threadedly engaged with the second bracket plate 303, the pressure plate 302 is fixedly arranged at the bottom of the screw 304, and the first wheel 305 is fixedly arranged on the upper part of the screw 304.

[0038] By placing the metal plate to be welded on the upper part of the support plate 301 and then turning the hand wheel 305, the screw rod 304 is driven to rotate, and the screw rod 304 and the second bracket plate 303 cooperate with each other to drive the pressure plate 302 to move downward. The pressure plate 302 presses the metal plate against the upper part of the support plate 301 to achieve clamping and fixing of the metal plate.

[0039] See also Figure 1 In one embodiment, a support 101 is fixedly provided on the upper part of the base plate 10, and the first driving component 20 includes a motor 201, a rotating shaft 202 and a first slider 203. The motor 201 is fixedly installed on one side of the support 101. The first slider 203 is provided with two groups, and the two groups of the first sliders 203 are respectively fixedly provided on the side walls of the support plate 301 corresponding to the two groups of the clamping components 30. Two groups of external threads 204 with opposite rotation directions are provided on the outside of the rotating shaft 202. One end of the rotating shaft 202 is connected to the output end of the motor 201, and the other end passes through the two groups of the first sliders 203 and is respectively threadedly matched with the two groups of the first sliders 203 through the two groups of the external threads 204.

[0040] After the pressing plate 302 presses the metal plate onto the upper part of the supporting plate 301, the motor 201 can be used to drive the rotating shaft 202 to rotate. When the rotating shaft 202 rotates, the two sets of first sliders 203 are driven to slide toward each other along the outside of the rotating shaft 202 through the two sets of external threads 204. The two sets of first sliders 203 drive the two sets of supporting plates 301 to move toward each other, and then drive the two sets of metal plates to move toward each other. When the two sets of metal plates move toward each other, their welding surfaces act on a plurality of sliding rods 40. If the welding surface of the metal plate to be welded is a flat structure, then When the welding surfaces of the two sets of metal plates act on the sliding rods 40, the sliding rods 40 remain on the same straight line. On the contrary, if the welding surface of the metal plate to be welded is a curved structure, when the welding surfaces of the two sets of metal plates act on the sliding rods 40, the sliding rods 40 are pushed by the metal plates and then slide adaptively compared to the supporting assembly 50 until the welding surfaces of the two sets of metal plates are fully in contact with the sliding rods 40. The connecting line between the sliding rods 40 remains curved, and the curved shape is consistent with the curved shape of the welding surface.

[0041] See also Figure 1 as well as Figure 4 In one embodiment, the support assembly 50 includes a frame 501 and guide rods 502. The guide rods 502 are provided in a plurality of groups, the same number as the sliding rods 40. The plurality of guide rods 502 are fixedly arranged inside the frame 501. Each group of guide rods 502 transversely penetrates a group of sliding rods 40 and movably cooperates with the sliding rods 40. The second driving assembly 60 is a hydraulic cylinder, which is fixedly mounted on the side wall of the first bracket plate 102. The output end of the hydraulic cylinder is connected to the frame 501.

[0042] When a metal plate with a curved welding surface acts on a number of sliding rods 40, the sliding rods 40 can slide relative to the corresponding guide rods 502 under the pushing action of the metal plate. When the welding surface of the metal plate is in full contact with the number of sliding rods 40, the connecting line between the number of sliding rods 40 forms a curved structure, and the shape of the curved structure is consistent with the welding curved surface of the metal plate. When the welding surface of the metal plate is in full contact with the number of sliding rods 40, the frame 501 is driven upward by the hydraulic cylinder, and then the number of sliding rods 40 are driven upward synchronously by the number of guide rods 502, and the lower ends of the number of sliding rods 40 are removed from between the two groups of metal plates.

[0043] See also Figure 1 , Figure 2 as well as Figure 5 In one embodiment, the elastic component 80 includes a cylinder 801, a sleeve 802, a second slider 803, a telescopic rod 804, a U-shaped bracket 805 and a roller 806. The cylinder 801 is fixedly arranged on one side of the second slider 803, and the sleeve 802 is arranged on the other side of the second slider 803. The piston rod of the cylinder 801 passes through the second slider 803 and is connected to the sleeve 802. One end of the telescopic rod 804 extends to the inside of the sleeve 802 and is telescopically matched with the sleeve 802, and the other end extends to the outside of the sleeve 802 and is connected to the U-shaped The bracket 805 is connected, the roller 806 is rotatably arranged on the inner side of the U-shaped bracket 805, and a spring (not shown in the figure) is arranged inside the sleeve 802 to provide elastic support for the telescopic rod 804. The upper part of the laser welding gun 70 is fixedly connected to the telescopic rod 804 through the welding gun bracket 701. The third driving assembly 90 includes an external motor and a screw rod. The external motor is fixedly mounted on the side wall of the first bracket plate 102. One end of the screw rod is connected to the output end of the external motor, and the other end passes through the second slider 803 and is threadedly matched with the second slider 803.

[0044] After the hydraulic cylinder drives the frame 501 to move upward and then drives the plurality of slide bars 40 so that the lower ends of the plurality of slide bars 40 are removed from between the two sets of metal plates, the cylinder 801 drives its piston rod to extend, thereby pushing the sleeve 802 to move, and the sleeve 802 drives the telescopic rod 804, the U-shaped bracket 805, the roller 806, the welding gun bracket 701 and the laser welding gun 70 to move. When the roller 806 moves, it acts on the side wall of a certain slide bar 40, and the internal spring of the sleeve 802 is compressed. At this time, the laser welding gun 70 moves to the bottom of the slide bar 40 and faces the welding gap between the two sets of metal plates. Then, the external motor drives the lead screw to rotate, and the threaded cooperation between the lead screw and the second slider 803 drives the second slider 803 to move along the length direction of the lead screw, thereby driving the cylinder 801, the sleeve 802, the telescopic rod 804, the roller 806, the welding gun bracket 701 and the welding gun 70 to move as a whole. When the roller 806 moves, it rolls along the side walls of the plurality of slide bars 40. If the welding surface of the two groups of metal plates is a planar structure, the welding gap formed by the two groups of metal plates is a straight structure, and a plurality of slide bars 40 form a straight structure. When the roller 806 rolls along the side walls of the plurality of slide bars 40, the laser welding gun 70 moves straightly along the welding gap formed by the two groups of metal plates, so as to weld the two groups of metal plates with the welding surface as a planar structure into one. On the contrary, if the welding surface of the two groups of metal plates is a curved structure, the welding gap formed by the two groups of metal plates is a curved structure, and a connecting line between the plurality of slide bars 40 forms a curved structure. When the roller 806 rolls along the side walls of the plurality of slide bars 40, the elastic support of the spring for the telescopic rod 804 can make the telescopic rod 804 adaptively telescopic relative to the sleeve 802, and then the moving path of the laser welding gun 70 is adaptively adjusted, so that the laser welding gun 70 moves in a curve along the welding gap formed by the two groups of metal plates, thereby welding the two groups of metal plates with the welding surface as a curved structure into one.

[0045] See also Figure 3 In one embodiment, a rotating sleeve 401 is rotatably provided on the side wall of each group of the sliding rods 40, and a caulking block 402 is fixedly provided on the rotating sleeve 401. The caulking block 402 is an isosceles triangle structure, and arc-shaped notches are opened on the two waist surfaces of the isosceles triangle, one of the arc-shaped notches is covered on the outer wall of the rotating sleeve 401 and is fixedly connected to the rotating sleeve 401.

[0046] When the roller 806 rolls along the side wall of a group of slide bars 40, the roller 806 can act on the caulking block 402 on the side wall of the group of slide bars 40, and the caulking block 402 drives the rotating sleeve 401 to rotate compared to the slide bars 40, and the caulking block 402 is embedded between the two adjacent groups of slide bars 40. At this time, the arc-shaped notch on one waist surface of the caulking block 402 is interlocked with the rotating sleeve 401 on the side wall of another adjacent group of slide bars 40, thereby filling the gap between the two adjacent groups of slide bars 40, so that the roller 806 can smoothly transition from the side wall of one group of slide bars 40 to the side wall of another adjacent group of slide bars 40, thereby driving the laser welding gun 70 to move smoothly along the welding gap between the two groups of metal plates, thereby improving the welding effect and welding quality.

[0047] See also Figure 1 In one embodiment, a top block 103 is fixedly disposed on the side wall of the first bracket plate 102 .

[0048] After the hydraulic cylinder drives the frame 501 to move upward and thus removes the lower ends of the sliding bars 40 from between the two groups of metal plates, the upper ends of the sliding bars 40 act on the top block 103, and the top block 103 presses the sliding bars 40 tightly, thereby fixing the sliding bars 40, so that when the rollers 806 roll along the side walls of the sliding bars 40, the sliding bars 40 can provide stable support for the rollers 806, and then provide stable support for the laser welding gun 70, so that the two groups of metal plates can be smoothly welded into one.

[0049] Compared with the prior art, when the welding surfaces of two groups of metal plates to be welded are curved structures, the moving path of the laser welding gun 70 can be adjusted so that the moving path of the laser welding gun 70 is consistent with the curved weld, thereby realizing automatic welding of two groups of metal plates with curved surfaces.

[0050] 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 metal plate laser welding device, characterized in that: It includes a base plate, a first driving assembly, a clamping assembly, a slide bar, a supporting assembly, a second driving assembly, a laser welding gun, an elastic assembly and a third driving assembly. The clamping assembly is provided with two groups, and the two groups of the clamping assemblies are movably arranged on the upper part of the bottom plate, and are used to clamp two groups of metal plates to be welded respectively. The first driving assembly is mounted on the upper portion of the bottom plate and is used to drive the two groups of the clamping assemblies to move toward each other. A first bracket plate is fixedly arranged on the upper part of the bottom plate, the support assembly is arranged at the bottom of the first bracket plate, the slide bars are arranged in a plurality of groups, the plurality of slide bars are sequentially distributed along the length direction of the support assembly, and the plurality of slide bars can slide along the width direction of the support assembly. The second driving assembly is installed at the bottom of the first bracket plate, and is used to drive the supporting assembly to move upward. One end of the elastic component is against the sliding rod, the laser welding gun is arranged at the lower part of the elastic component, and the third driving component is installed on the side wall of the first bracket plate to drive the laser welding gun and the elastic component to move along the weld between the two groups of metal plates.

2. The metal plate laser welding equipment according to claim 1, characterized in that: The clamping assembly includes a support plate, a pressure plate, a second bracket plate, a screw rod and a hand wheel. The second bracket plate is fixedly arranged on the upper edge of the support plate, the screw rod vertically penetrates the second bracket plate and is threadedly matched with the second bracket plate, the pressure plate is fixedly arranged on the bottom of the screw rod, and the first wheel is fixedly arranged on the upper part of the screw rod.

3. The metal plate laser welding equipment according to claim 2, characterized in that: A support is fixedly arranged on the upper part of the bottom plate. The first driving assembly includes a motor, a rotating shaft and a first slider. The motor is fixedly mounted on one side of the support, and two groups of the first sliders are provided. The two groups of the first sliders are respectively fixedly arranged on the side walls of the support plate corresponding to the two groups of the clamping assemblies. Two groups of external threads with opposite rotation directions are arranged on the outside of the rotating shaft. One end of the rotating shaft is connected to the output end of the motor, and the other end passes through the two groups of the first sliders and is respectively threadedly matched with the two groups of the first sliders through the two groups of the external threads.

4. The metal plate laser welding equipment according to claim 1, characterized in that: The support assembly includes a frame and guide rods. The guide rods are provided in a plurality of groups with the same number as the slide rods. The guide rods are fixedly arranged inside the frame. Each group of guide rods transversely penetrates a group of slide rods and movably cooperates with the slide rods. The second driving assembly is a hydraulic cylinder, which is fixedly mounted on the side wall of the first bracket plate, and the output end of the hydraulic cylinder is connected to the frame.

5. The metal plate laser welding equipment according to claim 1, characterized in that: The elastic component includes a cylinder, a sleeve, a second slider, a telescopic rod, a U-shaped bracket and a roller. The cylinder is fixedly arranged on one side of the second slider, the sleeve is arranged on the other side of the second slider, the piston rod of the cylinder passes through the second slider and is connected to the sleeve, one end of the telescopic rod extends to the inside of the sleeve and is telescopically matched with the sleeve, and the other end extends to the outside of the sleeve and is connected to the U-shaped bracket, the roller is rotatably arranged on the inner side of the U-shaped bracket, a spring for providing elastic support to the telescopic rod is arranged inside the sleeve, and the upper part of the laser welding gun is fixedly connected to the telescopic rod through the welding gun bracket, The third driving assembly includes an external motor and a screw rod. The external motor is fixedly mounted on the side wall of the first bracket plate, one end of the screw rod is connected to the output end of the external motor, and the other end passes through the second slider and is threadedly matched with the second slider.

6. The metal plate laser welding equipment according to claim 5, characterized in that: A rotating sleeve is rotatably mounted on the side wall of each group of sliding rods, and a caulking block is fixedly mounted on the rotating sleeve. The caulking block is an isosceles triangle structure, and arc-shaped notches are opened on the two waist surfaces of the isosceles triangle. One of the arc-shaped notches is covered on the outer wall of the rotating sleeve and is fixedly connected to the rotating sleeve.

7. The metal plate laser welding equipment according to claim 1, characterized in that: A top block is also fixedly arranged on the side wall of the first bracket plate.

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