A laser welding device for butt joining metal plates

Abstract

The application discloses a kind of metal plate butt joint laser welding devices, relate to the technical field of metal plate butt joint laser welding, the metal plate butt joint laser welding device, including frame and metal plate body, the top of the frame is fixedly installed motor, the top of the frame is fixedly installed base, the top of the base is fixedly installed and places board, the output end of the motor is fixedly installed screw rod, the circumference of the screw rod is slidably installed mounting plate, further including fixing device, cleaning device and collection device;Among them, the fixing device includes connecting plate, connecting shaft, square plate, L-shaped board one, support plate, clamping plate and telescopic elastic rod, the bottom of the connecting plate is fixedly installed mounting plate, by ensuring accurate butt joint position, can significantly improve welding quality, reduce defect and material waste, improve production efficiency, reduce artificial error, can ensure that welding position is stable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser welding of metal plate butt joint, in particular to a laser welding device for metal plate butt joint. BACKGROUND

[0002] The laser welding device for metal plate butt joint is a welding device that uses a laser beam as an energy source to locally melt the surface of a metal plate and join it with another metal plate through high-intensity laser radiation. Laser welding has the advantages of high precision, small heat-affected zone, fast welding speed, and suitability for automation, and is widely used in aerospace, automobile manufacturing, electronic equipment, and other fields.

[0003] The patent with patent number CN117283134B relates to a laser welding device for metal plate butt joint. The patent includes two support frames, two workbenches between the two support frames, two workbenches that can move along the length direction of the support frame, a material blocking plate on each side of the two workbenches that move up and down, a calibration assembly on the workbench for moving the metal plate, a mechanical arm between the two workbenches on the support frame, and a laser welding head on the mechanical arm for laser welding. Two metal plates are placed on the two workbenches, the metal plates on the workbenches are moved by the calibration assembly, the two workbenches are moved closer to each other, the material blocking plate is moved down, and after the two workbenches are attached, the sides of the two metal plates that need to be welded are attached. The laser welding head performs laser welding on the metal plates, improving the efficiency of laser welding.

[0004] In the above-mentioned patent, two metal plates are placed on two workbenches, and the metal plates on the workbenches are moved by the calibration assembly. However, during laser welding of the metal plates, they may shake, resulting in inaccurate positioning during laser welding, which may affect the efficiency of laser welding. Therefore, a laser welding device for metal plate butt joint with a fixing device is designed. SUMMARY

[0005] To overcome the shortcomings of the prior art, the present application provides a laser welding device for metal plate butt joint, which solves the problems raised in the background art.

[0006] In order to achieve the above object, the present application is realized by the following technical scheme: a laser welding device for butt joint of metal plates, comprising a frame and a metal plate body, a motor is fixedly installed on the top of the frame, a base is fixedly installed above the frame, a plate placing disc is fixedly installed above the base, a screw rod is fixedly installed on the output end of the motor, an installation plate is slidably installed on the circumference of the screw rod, and the device further comprises a fixing device, a cleaning device and a collecting device; wherein the fixing device comprises a connecting plate, a connecting shaft, a square plate, an L-shaped plate one, a supporting plate, a clamping plate and an elastic expansion rod, the metal plate body is placed above the plate placing disc, and the motor is started at the same time, the output end of the motor rotates to drive the screw rod, the screw rod rotates to drive the installation plate to move downward, then the installation plate moves downward to drive the connecting plate to move downward, the connecting plate moves downward to drive the connecting shaft at the bottom to move downward, the connecting plate is fixedly installed at the bottom of the installation plate, the connecting shaft is fixedly penetrated through the bottom of the connecting plate, the square plate is slidably installed above the plate placing disc, the L-shaped plate one is fixedly installed on the side of the square plate, the supporting plate is fixedly installed above the plate placing disc, the clamping plate is slidably installed above the supporting plate, and the elastic expansion rod is fixedly installed on the inner wall above the supporting plate, at the same time, the L-shaped plate one moves to the direction close to the metal plate body to contact and press the side of the clamping plate, when the side of the clamping plate is pressed, it also moves to the direction close to the side of the metal plate body, and the metal plate body is fixedly clamped.

[0007] According to the above technical scheme, the surface of the square plate is provided with a sliding groove, and the connecting shaft is slidably connected with the inner wall of the sliding groove.

[0008] According to the above technical scheme, one end of the L-shaped plate one close to the supporting plate is provided as an inclined surface, and the free end of the elastic expansion rod is fixedly connected with the clamping plate, when the clamping plate is not pressed, it returns to the initial state under the action of the elastic expansion rod.

[0009] According to the above technical scheme, the cleaning device comprises a protective plate, a concave plate, a sliding groove, a resisting plate, an L-shaped plate two and a sweeping plate, when the installation plate moves downward, the bottom protective plate moves downward, the protective plate moves downward to protect the metal plate body during laser welding, the protective plate is fixedly installed at the bottom of the installation plate, the concave plate is fixedly installed above the plate placing disc, the sliding groove is formed in the inner wall of the concave plate, the resisting plate is fixedly installed on the surface of the square plate, the L-shaped plate two is slidably installed in the inner wall of the sliding groove, and the sweeping plate is fixedly installed at the bottom of the L-shaped plate two, when the resisting plate moves to the direction close to the metal plate body, it contacts and presses the sweeping plate to move away from the square plate, when the sweeping plate moves away from the square plate, it drives the surface L-shaped plate two to slide in the inner wall of the sliding groove, and the sweeping plate moves away from the square plate to clean and scrape the surface of the metal plate body.

[0010] According to the above technical solution, a spring is provided between the L-shaped plate II and the inner wall of the slide groove. The L-shaped plate II is in contact with the surface of the metal plate body. When the sweeping plate moves away from the square plate, it will cause the L-shaped plate II on the surface to slide on the inner wall of the slide groove.

[0011] According to the above technical solution, there are two concave plates, which are symmetrically distributed around the sweeping plate. When the sweeping plate is not under force, it will drive the second L-shaped plate to reset under the action of the first spring.

[0012] According to the above technical solution, the collection device includes a collection box, an air pump, a suction pipe, an air outlet pipe, a fan blade, a groove, a T-shaped plate, a toothed block, a rotating shaft, a gear, a fixed plate, a horizontal plate, and a ventilated plate. Moving the mounting plate downwards causes the air pump on its surface to move downwards, subsequently activating the air pump. The output end of the air pump drives the suction pipe to perform a suction function for air recovery. The collection box is fixedly installed above the mounting plate, the air pump is fixedly installed above the mounting plate, the suction pipe is fixedly installed on the side of the air pump, the air outlet pipe is fixedly installed on the top of the air pump, the fan blade is fixedly installed on the mounting plate, the groove is formed on the surface of the protective plate, and the T-shaped plate is slidably installed. On the inner wall of the groove, the toothed block is fixedly installed on the side of the T-shaped plate. The rotating shaft rotates through the surface of the collection box. The gear is fixedly installed on the circumferential surface of the rotating shaft. The fixing plate is fixedly installed through the circumferential surface of the rotating shaft. The horizontal plate is fixedly installed on the surface of the fixing plate. The ventilated plate is fixedly installed above the mounting plate. When the T-shaped plate slides upward on the inner wall of the groove, it will cause the toothed block on the side to move downward. The toothed block moves upward and meshes with the gear to rotate. The rotation of the gear will cause the rotating shaft to rotate. The rotation of the rotating shaft will cause the fixing plate to rotate. The rotation of the fixing plate will cause the horizontal plate on the surface to rotate. The horizontal plate rotates and stirs the activated carbon on the surface of the ventilated plate.

[0013] According to the above technical solution, the T-shaped plate and the inner wall of the groove are provided with a spring, the toothed block meshes with the gear, and the toothed block moves upward and meshes with the gear to drive rotation.

[0014] This invention provides a laser welding apparatus for butt welding of metal plates. It has the following advantages:

[0015] (1) The metal plate butt joint laser welding device, through the setting of the fixing device, through the cooperation between the connecting plate, the connecting shaft, the square plate, the L-shaped plate one, the supporting plate, the clamping plate and the telescopic elastic rod, when the square plate is extruded, the metal plate body will be extruded to move away from the end of the square plate, the position of the metal plate body is adjusted, the laser welding is convenient, the welding quality is improved, the defects and material waste are reduced, the production efficiency is improved, the manual error is reduced, when the side of the clamping plate is extruded, it also moves towards the side of the metal plate body, and the metal plate body is fixed and clamped, then the metal plate body is laser welded, the welding position is stable, the welding quality is improved, the defects are reduced, the material deformation is avoided, and the strength and reliability of the welded joint are enhanced.

[0016] (2) The metal plate butt joint laser welding device, through the setting of the cleaning device, through the cooperation between the protective plate, the concave plate, the sliding groove, the abutting plate, the L-shaped plate two and the sweeping plate, the protective plate moves downward and protects the metal plate body during laser welding, which can effectively prevent oxidation and pollution, avoid pollution of the environment and adversely affect the health of the operator.

[0017] (3) The metal plate butt joint laser welding device, when the abutting plate moves towards the metal plate body, it will contact and extrude the sweeping plate to move away from the square plate, the sweeping plate moving away from the square plate will drive the L-shaped plate two on the surface to slide in the inner wall of the sliding groove, the sweeping plate moving away from the square plate and cleaning the surface of the metal plate body, which helps to improve the welding quality, strength, efficiency, reduce welding defects and improve the appearance, so that the laser welding is more stable and reliable.

[0018] (4) The metal plate butt joint laser welding device, through the setting of the collecting device, through the cooperation between the collecting box, the air pump, the suction pipe, the air outlet pipe, the fan blade, the groove, the T-shaped plate, the tooth block, the rotating shaft, the gear, the fixed plate, the horizontal plate and the breathable plate, the output end of the air pump will drive the suction pipe to recycle and inhale, the suction pipe will recycle the smoke and toxic gas generated during laser welding of the metal plate body through the fan blade, the toxic gas will enter the pipeline of the air outlet pipe and enter the inner wall of the collecting box, which can ensure the safety of the operator and the environment, improve the quality and efficiency of the welding process, prolong the service life of the equipment, reduce the pollution to the environment, and at the same time, the rotation of the fixed plate will drive the horizontal plate on the surface to rotate, the horizontal plate rotates and stirs the activated carbon on the surface of the breathable plate, which can effectively improve the recycling efficiency of harmful gas, increase the volatilization effect of activated carbon, reduce the operating cost, and improve the welding quality. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure diagram of the present application;

[0020] Figure 2 Figure 1 is a structural schematic diagram of the screw rod and the motor of the present application;

[0021] Figure 3 Figure 2 is a structural schematic diagram of the L-shaped plate one and the clamping plate of the present application;

[0022] Figure 4 Figure 3 is a structural schematic diagram of the A part of the present application; Figure 3

[0023] Figure 5 Figure 4 is a structural schematic diagram of the resisting plate and the sweeping plate of the present application;

[0024] Figure 6 Figure 5 is a structural schematic diagram of the L-shaped plate two and the sliding groove of the present application;

[0025] Figure 7 Figure 6 is a structural schematic diagram of the fan blade and the mounting plate of the present application;

[0026] Figure 8 Figure 7 is a structural schematic diagram of the B part of the present application; Figure 7

[0027] Figure 1 is a structural schematic diagram of the screw rod and the motor of the present application; DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Please refer to Figures 1-8 ​​One embodiment of the present application is: a metal plate butt joint laser welding device, comprising a frame 1 and a metal plate body 7, the top of the frame 1 is fixedly installed with a motor 2, the upper side of the frame 1 is fixedly installed with a base 3, the upper side of the base 3 is fixedly installed with a plate placing disc 4, the output end of the motor 2 is fixedly installed with a screw rod 5, the circumferential surface of the screw rod 5 is slidably installed with a mounting plate 6, and the device further comprises a fixing device, a cleaning device and a collecting device; wherein the fixing device comprises a connecting plate 81, a connecting shaft 82, a square plate 83, an L-shaped plate one 84, a supporting plate 85, a clamping plate 86 and an elastic telescopic rod 87, the metal plate body 7 is placed on the upper side of the plate placing disc 4, and the motor 2 is started at the same time, the output end of the motor 2 rotates to drive the screw rod 5, the screw rod 5 rotates to drive the mounting plate 6 to move downward, then the mounting plate 6 moves downward to drive the connecting plate 81 to move downward, the connecting plate 81 moves downward to drive the connecting shaft 82 at the bottom to move downward, the connecting plate 81 is fixedly installed at the bottom of the mounting plate 6, the connecting shaft 82 is fixedly penetrated through the bottom of the connecting plate 81, the square plate 83 is fixedly installed on the upper side of the plate placing disc 4, the L-shaped plate one 84 is fixedly installed on the side of the square plate 83, the supporting plate 85 is slidably installed on the upper side of the plate placing disc 4, the clamping plate 86 is slidably installed on the upper side of the supporting plate 85, and the elastic telescopic rod 87 is fixedly installed on the inner wall of the upper side of the supporting plate 85, at the same time, the L-shaped plate one 84 moves to the side of the metal plate body 7 and contacts and extrudes the side of the clamping plate 86, when the side of the clamping plate 86 is extruded, it also moves to the side of the metal plate body 7 and clamps and fixes the metal plate body 7, then the metal plate body 7 is subjected to laser welding treatment, which can ensure the stability of the welding position, improve the welding quality, reduce defects, avoid material deformation, and enhance the strength and reliability of the welding joint.

[0030] The surface of the square plate 83 is provided with a sliding groove, and the connecting shaft 82 is slidably connected with the inner wall of the sliding groove.

[0031] The end of the L-shaped plate one 84 close to the supporting plate 85 is provided as an inclined surface, the free end of the elastic telescopic rod 87 is fixedly connected with the clamping plate 86, and when the clamping plate 86 is not extruded, it will return to the initial state under the action of the elastic telescopic rod 87.

[0032] The metal plate body 7 is placed above the plate placing disc 4, and the motor 2 is started to drive the screw rod 5, and the screw rod 5 drives the mounting plate 6 to move downward, and then the mounting plate 6 drives the connecting plate 81 to move downward, and the connecting plate 81 drives the bottom connecting shaft 82 to move downward, and the connecting shaft 82 slides in the inner wall of the sliding groove on the surface of the square plate 83 and extrudes the square plate 83, when the square plate 83 is extruded, the metal plate body 7 is extruded to move away from the square plate 83, the position of the metal plate body 7 is adjusted, the laser welding is facilitated, the welding quality is improved, the defects and material waste are reduced, the production efficiency is improved, the manual error is reduced, then the square plate 83 drives the side L-shaped plate 84 to move towards the metal plate body 7, and the L-shaped plate 84 moves towards the metal plate body 7 to extrude the side of the clamping plate 86, when the side of the clamping plate 86 is extruded, it moves towards the metal plate body 7 and clamps the metal plate body 7, then the metal plate body 7 is laser welded to ensure the stability of the welding position, improve the welding quality, reduce defects, avoid material deformation, when the welding is completed, the mounting plate 6 moves upward under the action of the screw rod 5, the mounting plate 6 drives the connecting plate 81 to move upward, the connecting plate 81 drives the connecting shaft 82 to move upward, and the connecting shaft 82 slides upward in the sliding groove on the surface of the square plate 83 to drive the square plate 83 to move away from the metal plate body 7, the square plate 83 drives the side L-shaped plate 84 to move away from the metal plate body 7, and when the clamping plate 86 is not extruded, it returns to the initial state under the action of the telescopic elastic rod 87, facilitating subsequent use, prolonging the service life of the equipment and reducing labor costs.

[0033] Please refer to Figures 1-8On the basis of the above-mentioned embodiment, in another embodiment of the present application, the cleaning device comprises a protective plate 91, a concave plate 92, a sliding groove 93, a stop plate 94, an L-shaped plate two 96 and a sweeping plate 97. When the mounting plate 6 moves downward, the bottom protective plate 91 is driven to move downward. The protective plate 91 is protected when it moves downward and performs laser welding on the metal plate body 7, preventing harmful gas from entering the range of human activity, effectively preventing oxidation and pollution, avoiding pollution of the environment and adverse effects on the health of the operator. At the same time, when the square plate 83 is extruded, the side stop plate 94 is driven to move towards the metal plate body 7. The protective plate 91 is fixedly installed at the bottom of the mounting plate 6. The concave plate 92 is fixedly installed above the plate disc 4. The sliding groove 93 is opened in the inner wall of the concave plate 92. The stop plate 94 is fixedly installed on the surface of the square plate 83. The L-shaped plate two 96 is slidingly installed in the inner wall of the sliding groove 93. The sweeping plate 97 is fixedly installed at the bottom of the L-shaped plate two 96. The stop plate 94 moves towards the metal plate body 7 and contacts the extruded L-shaped plate two 96 to move away from the square plate 83. The L-shaped plate two 96 moves away from the square plate 83 and drives the surface sweeping plate 97 to slide in the inner wall of the sliding groove 93. The L-shaped plate two 96 moves away from the square plate 83 and cleans and scrapes the surface of the metal plate body 7, which helps to improve the welding quality, strength, efficiency, reduce welding defects and improve the appearance, making the laser welding more stable and reliable.

[0034] The spring one 95 is arranged between the sweeping plate 97 and the inner wall of the sliding groove 93. The L-shaped plate two 96 contacts the surface of the metal plate body 7. The L-shaped plate two 96 moves away from the square plate 83 and drives the surface sweeping plate 97 to slide in the inner wall of the sliding groove 93.

[0035] The concave plate 92 is provided with two concave plates 92 which are symmetrically distributed with the sweeping plate 97 as the center. The L-shaped plate two 96 drives the sweeping plate 97 to reset under the action of the spring one 95 without force.

[0036] The collecting device comprises a collecting box 101, an air pump 102, a suction pipe 103, an air outlet pipe 104, a fan blade 105, a groove 106, a T-shaped plate 107, a tooth block 109, a rotating shaft 110, a gear 111, a fixed plate 112, a cross plate 113 and a breathable plate 114, the downward movement of the mounting plate 6 drives the surface air pump 102 to move downward, then the air pump 102 is started, the output end of the air pump 102 drives the suction pipe 103 to perform the recycling suction function, the suction pipe 103 recycles the smoke and toxic gas generated during the laser welding of the metal plate body 7 through the fan blade 105, the collecting box 101 is fixedly installed above the mounting plate 6, the air pump 102 is fixedly installed above the mounting plate 6, the suction pipe 103 is fixedly installed on the side of the air pump 102, the air outlet pipe 104 is fixedly installed on the top of the air pump 102, the fan blade 105 is fixedly installed on the mounting plate 6, the groove 106 is formed in the surface of the protective plate 91, the T-shaped plate 107 is slidingly installed on the inner wall of the groove 106, the tooth block 109 is fixedly installed on the side of the T-shaped plate 107, the rotating shaft 110 is rotatably penetrated through the surface of the collecting box 101, the gear 111 is fixedly installed on the circumferential surface of the rotating shaft 110, the fixed plate 112 is fixedly penetrated through the circumferential surface of the rotating shaft 110, the cross plate 113 is fixedly installed on the surface of the fixed plate 112, and the breathable plate 114 is fixedly installed above the mounting plate 6. The upward sliding of the T-shaped plate 107 on the inner wall of the groove 106 drives the side tooth block 109 to move downward, the upward movement of the tooth block 109 and the meshing with the gear 111 drive the rotation of the gear 111, the rotation of the gear 111 drives the rotation of the rotating shaft 110, the rotation of the rotating shaft 110 drives the rotation of the fixed plate 112, and the rotation of the fixed plate 112 drives the rotation of the surface cross plate 113. The rotation of the cross plate 113 and the stirring of the activated carbon on the upper surface of the breathable plate 114 can effectively improve the recycling efficiency of harmful gas, increase the volatilization effect of the breathable plate 114, reduce the operation cost, and improve the welding quality.

[0037] The T-shaped plate 107 and the inner wall of the groove 106 are provided with spring two 108, the tooth block 109 is meshed with the gear 111, and the upward sliding of the T-shaped plate 107 on the inner wall of the groove 106 drives the side tooth block 109 to move downward.

[0038] When the square plate 83 is extruded, the side abutment plate 94 is moved towards the metal plate body 7, the L-shaped plate two 96 is moved away from the square plate 83 by being extruded by the abutment plate 94, the surface sweep plate 97 is slid on the inner wall of the sliding groove 93 by the L-shaped plate two 96 moving away from the square plate 83, the L-shaped plate two 96 is moved away from the square plate 83 and scrapes the surface of the metal plate body 7, which helps to improve the welding quality, strength, efficiency, reduce welding defects and improve the appearance, so that the laser welding is more stable and reliable, and then when the welding is finished, the square plate 83 is moved away from one end of the metal plate body 7, which drives the side abutment plate 94 to move away from one end of the metal plate body 7, but the L-shaped plate two 96 drives the sweep plate 97 to reset under the action of the spring one 95 in the force-free state, prolongs the service life of the equipment, facilitates subsequent reuse, and reduces the cost of manual labor.

[0039] At the same time, the installation plate 6 moves downward to drive the surface air pump 102 to move downward, and then the air pump 102 is started, the output end of the air pump 102 drives the suction pipe 103 to perform the recycling and air suction function, the suction pipe 103 recycles the smoke and toxic gas generated during the laser welding of the metal plate body 7 through the fan blade 105, the toxic gas enters the pipeline of the air outlet pipe 104 and the inner wall of the collection tank 101 through the suction pipe 103, which can ensure the safety of the operator and the environment, improve the quality and efficiency of the welding process, prolong the service life of the equipment, reduce the pollution to the environment, and at the same time, the installation plate 6 moves downward to drive the bottom protection plate 91 to move downward, the bottom protection plate 91 moves downward to drive the T-shaped plate 107 on the inner wall of the surface groove 106 to move downward, the bottom of the T-shaped plate 107 moves downward to extrude the surface of the placing disc 4, when the bottom of the T-shaped plate 107 is extruded, it slides upward on the inner wall of the groove 106, the side tooth block 109 moves downward by the T-shaped plate 107 sliding upward on the inner wall of the groove 106, the tooth block 109 moves upward and engages the gear 111 to drive rotation, the gear 111 rotates to drive the rotating shaft 110 to rotate, the rotating shaft 110 rotates to drive the fixed plate 112 to rotate, the fixed plate 112 rotates to drive the surface horizontal plate 113 to rotate, the horizontal plate 113 rotates and stirs the activated carbon on the upper surface of the air permeable plate 114, which can effectively improve the recycling efficiency of harmful gas, increase the volatilization effect of the air permeable plate 114, reduce the operating cost, and improve the welding quality.

[0040] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A laser welding device for butt welding of metal plates, comprising a frame (1) and a metal plate body (7), wherein a motor (2) is fixedly installed on the top of the frame (1), a base (3) is fixedly installed above the frame (1), a plate-laying tray (4) is fixedly installed above the base (3), a screw rod (5) is fixedly installed at the output end of the motor (2), and a mounting plate (6) is slidably installed on the circumferential surface of the screw rod (5), characterized in that: It also includes fixing devices, cleaning devices, and collection devices; The fixing device includes a connecting plate (81), a connecting shaft (82), a square plate (83), an L-shaped plate (84), a support plate (85), a clamping plate (86), and a telescopic spring rod (87). The connecting plate (81) is fixedly installed at the bottom of the mounting plate (6). The connecting shaft (82) is fixedly installed through the bottom of the connecting plate (81). The square plate (83) is slidably installed above the plate-laying tray (4). The L-shaped plate (84) is fixedly installed on the side of the square plate (83). The support plate (85) is fixedly installed above the plate-laying tray (4). The clamping plate (86) is slidably installed above the support plate (85). The telescopic spring rod (87) is fixedly installed on the inner wall above the support plate (85). The cleaning device includes a protective plate (91), a concave plate (92), a chute (93), a stop plate (94), an L-shaped plate (96), and a sweeping plate (97). The protective plate (91) is fixedly installed at the bottom of the mounting plate (6). The concave plate (92) is fixedly installed above the plate placement tray (4). The chute (93) is opened on the inner wall of the concave plate (92). The stop plate (94) is fixedly installed on the side of the square plate (83). The L-shaped plate (96) is slidably installed on the inner wall of the chute (93). The sweeping plate (97) is fixedly installed at the bottom of the L-shaped plate (96). A spring (95) is provided between the inner wall of the L-shaped plate (96) and the groove (93), and the L-shaped plate (96) is in contact with the surface of the metal plate body (7). Two concave plates (92) are provided, and the two concave plates (92) are symmetrically distributed with the sweeping plate (97) as the center.

2. The laser welding apparatus for butt welding of metal plates according to claim 1, characterized in that: The surface of the square plate (83) is provided with a sliding groove, and the connecting shaft (82) is slidably connected to the inner wall of the sliding groove.

3. The laser welding apparatus for butt welding of metal plates according to claim 2, characterized in that: The end of the L-shaped plate (84) near the support plate (85) is set as an inclined surface, and the free end of the telescopic spring rod (87) is fixedly connected to the clamping plate (86).

4. The laser welding apparatus for butt welding of metal plates according to claim 1, characterized in that: The collecting device includes a collecting box (101), an air pump (102), a suction tube (103), an air outlet pipe (104), a fan blade (105), a groove (106), a T-shaped plate (107), a toothed block (109), a rotating shaft (110), a gear (111), a fixing plate (112), a horizontal plate (113), and a ventilating plate (114). The collecting box (101) is fixedly installed above the mounting plate (6), the air pump (102) is fixedly installed above the mounting plate (6), the suction tube (103) is fixedly installed on the side of the air pump (102), the air outlet pipe (104) is fixedly installed on the top of the air pump (102), and the fan blade... (105) is fixedly installed on the mounting plate (6), the groove (106) is opened on the surface of the protective plate (91), the T-shaped plate (107) is slidably installed on the inner wall of the groove (106), the tooth block (109) is fixedly installed on the side of the T-shaped plate (107), the rotating shaft (110) rotates through the surface of the collection box (101), the gear (111) is fixedly installed on the circumferential surface of the rotating shaft (110), the fixing plate (112) is fixedly installed through the circumferential surface of the rotating shaft (110), the horizontal plate (113) is fixedly installed on the surface of the fixing plate (112), and the ventilated plate (114) is fixedly installed above the mounting plate (6).

5. The laser welding apparatus for butt welding of metal plates according to claim 4, characterized in that: The inner walls of the T-shaped plate (107) and the groove (106) are provided with springs (108), and the toothed block (109) meshes with the gear (111).

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