A laser welding equipment for new energy vehicle parts

Abstract

The embodiment of the present application provides a laser welding device for new energy vehicle parts, which relates to the technical field of laser welding equipment. The laser welding device for new energy vehicle parts includes: a laser welding device body, a universal adjustment mechanism and a workpiece support adjustment mechanism. The lifting and mounting assembly drives the universal adjustment mechanism to move in the vertical direction. The universal adjustment mechanism drives the base plate to move and adjust, and the dynamic drive component is installed on the base plate to drive the arc-shaped slide rail to slide along the arc-shaped guide rail. The end of the limit frame is fixedly connected to the arc-shaped slide rail, and a strip plate is provided in the groove inside the limit frame. The magnet block is fixedly embedded in the mounting opening on the strip plate. The laser welding device can realize multiple position adjustments of the arc-shaped metal parts to be magnetically attracted, so that the welding assembly can weld different surfaces of the parts. There is no need to put down the workpiece in one welding operation, and multi-side adjustment welding can be performed directly, thereby improving the welding processing efficiency of the arc-shaped parts.

Description

Technical Field

[0001] The present application relates to the technical field of laser welding equipment, and more specifically, to a laser welding equipment for new energy vehicle parts. Background Art

[0002] Laser welding equipment for new energy vehicle parts is a high-precision processing tool designed specifically for the manufacture of key components of new energy vehicles. Its core advantage lies in its efficient, accurate and clean thermal processing capabilities, which can meet the special process requirements of components such as power batteries, drive motors, and body structures.

[0003] Current laser welding equipment for new energy vehicle components primarily uses fixtures to hold workpieces for laser welding. This is especially true when processing curved components, requiring the use of special, custom-shaped fixtures to hold two curved parts. These fixtures, when clamped, often make it difficult to flexibly adjust the workpiece position to allow for double-sided laser welding. Summary of the Invention

[0004] This application aims to solve at least one of the technical problems existing in the prior art. To this end, this application proposes a laser welding device for new energy vehicle parts to solve the problem that after conventional special-shaped clamps are clamped on curved workpieces, it is generally difficult to flexibly adjust the position of the welding workpiece to cooperate with the laser welding device to weld the workpiece on both sides.

[0005] According to an embodiment of the present application, a laser welding device for new energy vehicle parts includes: a laser welding device body, a universal adjustment mechanism, and a workpiece support adjustment mechanism.

[0006] The laser welding equipment body includes a base, a welding assembly and a lifting and mounting assembly, and the welding assembly and the lifting and mounting assembly are both installed above the base;

[0007] The lifting and mounting assembly drives the universal adjustment mechanism to move in the vertical direction;

[0008] The workpiece support and adjustment mechanism includes a base plate, an arc-shaped guide rail, an arc-shaped limit frame, a rotating drive member, an arc-shaped slide rail and a magnet block. The universal adjustment mechanism drives the base plate to move and adjust. The two groups of arc-shaped guide rails are respectively fixed on both sides above the base plate. The rotating drive member is installed on the base plate to drive the arc-shaped slide rail to slide along the arc-shaped guide rail. The end of the limit frame is fixedly connected to the arc-shaped slide rail. A strip plate is provided in the slot inside the limit frame, and the magnet block is fixedly embedded in the mounting opening on the strip plate.

[0009] Two curved components are placed in the workpiece support and adjustment mechanism's limiter. Magnets on the internal bars of the limiter hold the metal components in place. The lifting assembly drives the universal adjustment mechanism vertically, allowing the components within the limiter to be moved and adjusted vertically. The universal adjustment mechanism can adjust the components within the limiter to any position, cooperating with the welding assembly to complete the welding operation. The rotating drive element drives the curved slide rail along the curved guide rail, allowing the curved components within the limiter to be adjusted along the curved guide rail to adjust the welding position, allowing the other side of the curved component within the limiter to be welded through the opening below the curved guide rail. This new energy vehicle component laser welding equipment can adjust the magnetically attracted curved metal components to various positions, allowing the welding assembly to weld different sides of the component. Multiple-side adjustment welding can be performed directly during a single welding operation without lowering the workpiece, improving the welding efficiency of curved components.

[0010] In some embodiments of the present application, the welding assembly includes a welding head and a support arm, the bottom of the support arm is fixed to the base, and the welding head is installed on the top of the support arm.

[0011] In some embodiments of the present application, the lifting and mounting assembly includes a fixed seat, a slide, a hydraulic cylinder and a bracket. The fixed seat is fixed to the base, the hydraulic cylinder is installed above the fixed seat to drive the slide to rise and fall, and the bracket is connected to the slide.

[0012] In some embodiments of the present application, the lifting and mounting assembly further includes a shield shell, which is located outside the hydraulic cylinder and is detachably mounted on a fixing seat.

[0013] In some embodiments of the present application, the universal adjustment mechanism includes a universal moving assembly and a mount, the universal moving assembly includes a first motor, a second motor, a third motor, a first connecting arm and a second connecting arm, the first motor is installed at the end of the bracket to drive the first connecting arm to rotate, the second motor is installed at the other end of the first connecting arm to drive the second connecting arm to rotate, and the third motor is installed at the other end of the second connecting arm.

[0014] In some embodiments of the present application, the seat frame includes an upper frame plate, a lower frame plate and a connecting block, the output shaft end of the third motor is connected to the upper frame plate, and the lower frame plate is fixedly connected to the upper frame plate through the connecting block.

[0015] In some embodiments of the present application, a first through-hole is provided on the lower frame plate, and the lower frame plate is located outside the third motor.

[0016] In some embodiments of the present application, a second through-hole is provided on the bottom plate, and the bottom plate is located outside the third motor.

[0017] In some embodiments of the present application, the rotation driving member includes a driving motor and a driving block, the driving motor is installed above the base plate, and the driving block is fixedly sleeved on the output shaft end of the driving motor.

[0018] In some embodiments of the present application, a clearance opening for avoiding the driving block is provided at the bottom end of the arc-shaped guide rail.

[0019] The laser welding equipment for new energy vehicle parts also includes a pneumatic actuator, which includes an air shell, a piston, a pull rod and an air pipe. A sealing gasket is provided on the magnet block, and an air vent is provided in the middle of the magnet block. The air shell is located below the limit frame, and the end face of the air shell is fixedly connected to the arc guide rail. The piston is located inside the air shell, one end of the pull rod is fixedly connected to the piston, and the other end of the pull rod slides through the air shell and is connected to the bottom of the strip plate in the limit frame. One end of the air pipe passes through the strip plate and is connected to the bottom of the air vent. The piston forms an air pressure chamber with the air shell on the side away from the pull rod, and the other end of the air pipe is connected to the air pressure chamber inside the air shell.

[0020] When two curved components are placed inside the retaining frame, the welding area above them is horizontal. Once welding is complete, the curved guide rail can be rotated by rotating the driver, ultimately driving the retaining frame to adjust the bottom of the internal component to tilt it toward the outside of the frame. The universal adjustment mechanism and lifting assembly can then be used to rotate the other welding surface, originally located at the bottom, to the top, allowing the welding assembly to be used. For components that are not magnetically attractive, as the curved guide rail rotates and adjusts the retaining frame, the strips within the retaining frame, moving along the curved guide rail, also move the pull rod. This moving pull rod moves the piston within the air shell, increasing the space within the air pressure chamber and reducing the air pressure. Through the air pipe and vent holes, the cavity between the upper portion of the magnet block and the sealing gasket can be tightly attached to the surface of the part. In other words, the magnet block and sealing gasket form a suction cup structure that can attract the workpiece surface. Moreover, as the rotation angle of the limit frame gradually increases, as the inclination angle of the internal components of the limit frame gradually increases, the cavities on the magnet block and the sealing gasket are more tightly adsorbed on the surface of the parts, which has a good adsorption and positioning effect.

[0021] In some embodiments of the present application, the sealing gasket includes a base pad layer, an outer edge layer and a convex edge layer, an outer edge groove is provided on the top outer edge of the magnet block, a through opening is provided in the middle of the base pad layer, and the base pad layer is fixedly sleeved in the outer edge groove, the outer edge layer is integrally formed and arranged on the top outer edge of the base pad layer, and the inner wall of the outer edge layer is arranged as an inclined surface, the convex edge layer of the annular structure is arranged in the middle of the inclined surface of the outer edge layer, and a small hole is provided on the bottom side edge of the convex edge layer.

[0022] The inner wall of the convex edge layer and the inclined surface of the outer edge layer form a suction cavity. Through the interaction of the small holes, the outer wall of the convex edge layer and the inclined outer edge layer form another suction cavity. When the sealing gasket contacts the workpiece surface and creates negative pressure, two suction cavities are formed for staged suction. This increases the suction contact area between the sealing gasket and the workpiece, improving the suction capacity of the component and further enhancing the positioning of the workpiece within the limit frame.

[0023] The beneficial effects of the present application are as follows: the present application obtains a laser welding device for new energy vehicle parts through the above-mentioned design, in which the magnet blocks on the internal strips of the limit frame adsorb and position the metal parts. The lifting and mounting assembly cooperates with the universal adjustment mechanism components to be adjusted to any position to complete the welding operation. The rotating drive member can drive the arc-shaped slide rail to move along the arc-shaped guide rail, that is, the arc-shaped parts inside the limit frame can be moved along the arc-shaped guide rail to adjust the welding position, so that the other side of the arc-shaped parts inside the limit frame can be welded through the opening below the arc-shaped guide rail. That is, the arc-shaped metal parts that are magnetically attracted can be adjusted to a variety of positions, which facilitates the welding assembly to weld different sides of the parts. There is no need to put down the workpiece in one welding operation, and multi-side adjustment welding can be performed directly, thereby improving the welding processing efficiency of the arc-shaped parts.

[0024] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a schematic structural diagram of a laser welding device for new energy vehicle parts according to an embodiment of the present application;

[0027] Figure 2 1 is a schematic structural diagram of a lifting and mounting assembly without a protective cover according to an embodiment of the present application;

[0028] Figure 3 Schematic diagram of the structure of the universal adjustment mechanism, workpiece support adjustment mechanism and pneumatic actuator according to an embodiment of the present application;

[0029] Figure 4 is a structural schematic diagram of a universal adjustment mechanism according to an embodiment of the present application;

[0030] Figure 5Schematic diagram of the structure of the workpiece support adjustment mechanism and the pneumatic actuator according to an embodiment of the present application;

[0031] Figure 6 This is a schematic structural diagram of a limit frame, a magnet block, a sealing gasket, and a pneumatic actuator according to an embodiment of the present application;

[0032] Figure 7 is a schematic structural diagram of a pneumatic actuator according to an embodiment of the present application;

[0033] Figure 8 is a schematic structural diagram of a magnet block according to an embodiment of the present application;

[0034] Figure 9 Schematic diagram of the sealing gasket structure according to an embodiment of the present application.

[0035] icon:

[0036] 10-Laser welding equipment body; 110-Base; 120-Welding assembly; 121-Welding head; 122-Support arm; 130-Lifting assembly; 131-Fixed seat; 132-Slide; 133-Hydraulic cylinder; 134-Bracket; 20-Universal adjustment mechanism; 210-Universal moving assembly; 211-First motor; 212-Second motor; 213-Third motor; 214-First connecting arm; 215-Second connecting arm; 220-Seat frame; 221-Upper shelf; 222-Lower shelf; 223-Connecting Block; 30-workpiece support and adjustment mechanism; 310-base plate; 320-arc guide rail; 330-limiting frame; 340-rotating drive member; 341-drive motor; 342-drive block; 350-arc slide rail; 360-magnet block; 361-vent; 362-outer groove; 370-sealing gasket; 371-base cushion layer; 372-through port; 373-outer layer; 374-convex layer; 375-small hole; 40-pneumatic actuator; 410-air shell; 420-piston; 430-pull rod; 440-trachea. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0038] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0039] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0040] The following describes a laser welding device for new energy vehicle parts according to an embodiment of the present application with reference to the accompanying drawings.

[0041] See also Figures 1-9 According to an embodiment of the present application, a laser welding device for new energy vehicle parts includes: a laser welding device body 10, a universal adjustment mechanism 20 and a workpiece support adjustment mechanism 30.

[0042] Among them, the workpiece support adjustment mechanism 30 is used to position two arc-shaped structural parts, and can adjust the angle of the positioned parts. In conjunction with the universal adjustment mechanism 20, the position of the parts can be adjusted, and in conjunction with the laser welding equipment body 10, two-sided welding can be flexibly completed.

[0043] See also Figure 1 、 Figure 3 、 Figure 5 and Figure 6 The laser welding equipment body 10 includes a base 110, a welding assembly 120, and a lifting assembly 130. The welding assembly 120 and the lifting assembly 130 are both mounted above the base 110. The lifting assembly 130 drives the universal adjustment mechanism 20 to move vertically. The workpiece support and adjustment mechanism 30 includes a base plate 310, an arc-shaped guide rail 320, an arc-shaped limit frame 330, a rotating drive member 340, an arc-shaped slide rail 350, and a magnet block 360. The universal adjustment mechanism 20 drives the base plate 310 to move and adjust. Two sets of arc-shaped guide rails 320 are fixed on both sides of the base plate 310. The rotating drive member 340 is mounted on the base plate 310 and drives the arc-shaped slide rail 350 to slide along the arc-shaped guide rail 320. The end of the limit frame 330 is fixedly connected to the arc-shaped slide rail 350. A strip plate is provided in the slot inside the limit frame 330, and the magnet block 360 is fixedly embedded in the mounting opening of the strip plate.

[0044] The operating principle of this laser welding equipment for new energy vehicle components is as follows: two curved components are placed within the workpiece support and adjustment mechanism 30, where magnets 360 on the internal strips of the limit frame 330 attract and position the metal components. The lifting assembly 130 drives the universal adjustment mechanism 20 to move vertically, allowing the components within the limit frame 330 to move and adjust vertically. The universal adjustment mechanism 20 can adjust the components within the limit frame 330 to any position, cooperating with the welding assembly 120 to complete the welding operation. The rotating drive member 340 drives the curved slide rail 350 to move along the curved guide rail 320, allowing the curved components within the limit frame 330 to move along the curved guide rail 320 to adjust the welding position. This allows the other side of the curved component within the limit frame 330 to be welded through the opening below the curved guide rail 320. That is, the laser welding equipment for new energy vehicle parts can adjust the positions of the magnetically attracted arc-shaped metal parts in various ways, making it convenient for the welding assembly 120 to weld different surfaces of the parts. There is no need to put the workpiece down during one welding operation, and multi-side adjustment welding can be performed directly, thereby improving the welding processing efficiency of the arc-shaped parts.

[0045] For specific settings, see Figure 1 The welding assembly 120 includes a welding head 121 and a support arm 122. The bottom of the support arm 122 is fixed to the base 110, and the support arm 122 and the base 110 can be fixed by bolts. The welding head 121 is installed on the top of the support arm 122. The welding head 121 is a commonly used laser welding head device and can perform welding operations on parts.

[0046] For details, please refer to Figure 2 The lifting assembly 130 includes a fixed base 131, a slide 132, a hydraulic cylinder 133, and a bracket 134. The fixed base 131 is fixed to the base 110 via bolts. The hydraulic cylinder 133 is mounted above the fixed base 131 to drive the slide 132 up and down. The bracket 134 is connected to the slide 132. The output rod end of the hydraulic cylinder 133 drives the slide 132 to move in the vertical direction, thus driving the universal adjustment mechanism 20 to move a large distance in the vertical direction.

[0047] Furthermore, the lifting installation assembly 130 further includes a shield shell, which is located outside the hydraulic cylinder 133 and is detachably mounted on the fixing seat 131. The shield shell is used to protect the hydraulic cylinder 133.

[0048] In the above specific implementation, please refer to Figure 3 and Figure 4The universal adjustment mechanism 20 includes a universal moving assembly 210 and a mount 220. The universal moving assembly 210 includes a first motor 211, a second motor 212, a third motor 213, a first connecting arm 214, and a second connecting arm 215. The first motor 211 is mounted at one end of the bracket 134 to drive the first connecting arm 214 to rotate. The second motor 212 is mounted at the other end of the first connecting arm 214 to drive the second connecting arm 215 to rotate. The third motor 213 is mounted at the other end of the second connecting arm 215.

[0049] The first motor 211 in the universal motion assembly 210 drives the first connecting arm 214, the second motor 212 drives the second connecting arm 215, and the third motor 213 drives the upper frame 221. This allows the seat frame 220 to be adjusted along all three axes, thus driving the components in the limiting frame 330 to move to the desired position.

[0050] Furthermore, the seat frame 220 includes an upper plate 221, a lower plate 222, and a connecting block 223. The output shaft end of the third motor 213 is connected to the upper plate 221, while the lower plate 222 is fixedly connected to the upper plate 221 via the connecting block 223. The third motor 213 drives the upper plate 221 of the seat frame 220 to rotate, and drives the lower plate 222 to move together via the connecting block 223. The base plate 310 is fixed to the lower plate 222.

[0051] Specifically, a first through-hole is provided on the lower shelf plate 222, and the lower shelf plate 222 is located outside the third motor 213. A second through-hole is provided on the bottom plate 310, and the bottom plate 310 is located outside the third motor 213. The rotating drive member 340 includes a driving motor 341 and a driving block 342. The driving motor 341 is installed above the bottom plate 310, and the driving block 342 is fixedly sleeved on the output shaft end of the driving motor 341. The driving motor 341 in the rotating drive member 340 drives the arc slide rail 350 to move through the friction between the driving block 342 and the arc slide rail 350. A corresponding anti-movement structure can also be provided between the driving motor 341 and the driving block 342, such as by cooperating with the self-locking structure of the worm gear to improve the stability of the arc slide rail 350 after rotation adjustment.

[0052] Furthermore, a clearance opening for avoiding the driving block 342 is provided at the bottom end of the arc-shaped guide rail 320 .

[0053] The limit frame 330 in the above-mentioned laser welding equipment for new energy vehicle parts is only suitable for fixing metal parts that can be magnetically attracted by the magnet block 360, and cannot perform positioning processing operations on some workpieces that cannot be magnetically attracted.

[0054] See also Figure 6 、 Figure 7 and Figure 8The laser welding equipment for new energy vehicle parts also includes a pneumatic actuator 40, which includes a gasket 410, a piston 420, a pull rod 430, and an air pipe 440. A sealing gasket 370 is provided on the magnet block 360, and a vent 361 is provided in the middle of the magnet block 360. The gasket 410 is located below the retaining frame 330, and its end surface is fixedly connected to the arcuate guide rail 320. The piston 420 is located inside the gasket 410. One end of the pull rod 430 is fixedly connected to the piston 420, and the other end of the pull rod 430 slides through the gasket 410 and connects to the bottom of the strip in the retaining frame 330. One end of the air pipe 440 passes through the strip and is connected to the bottom of the vent 361. The side of the piston 420 away from the pull rod 430 forms a pneumatic chamber with the gasket 410. The other end of the air pipe 440 is connected to the pneumatic chamber inside the gasket 410.

[0055] When the two curved components are placed inside the retaining frame 330, the welding area above the two components is in a horizontal position. After the upper welding is completed, the curved guide rail 350 can be rotated by rotating the driving member 340, which ultimately drives the retaining frame 330 to rotate and adjust the position of the bottom of the internal component to the outside of the base 220. Then, in conjunction with the universal adjustment mechanism 20 and the lifting installation assembly 130, the other welding surface originally located at the bottom can be rotated and adjusted to the top, so that it can cooperate with the welding assembly 120 to perform the welding operation. If the component is not magnetically attractive, when the curved guide rail 350 drives the retaining frame 330 to rotate and adjust its position, the strip of the retaining frame 330 moving along the curved guide rail 320 will also drive the pull rod 430 to move. The moving pull rod 430 will drive the piston 420 to move inside the air shell 410, increasing the space in the air pressure chamber inside the air shell 410 and reducing the air pressure. Through the air pipe 440 and the vent hole 361, the cavity between the upper part of the magnet block 360 and the sealing gasket 370 can be tightly adsorbed to the surface of the component. Specifically, the magnet block 360 and the sealing gasket 370 form a suction cup structure that can adhere to the workpiece surface. Furthermore, as the angle of rotation of the limit frame 330 gradually increases, the cavities of the magnet block 360 and the sealing gasket 370 adhere more tightly to the workpiece surface as the angle of inclination of the components within the limit frame 330 gradually increases, providing excellent adsorption and positioning.

[0056] If the component being welded is a magnetically attracted workpiece, not only can it be positioned by the magnet block 360, but the cavity formed by the sealing gasket 370 can also be used to further position the component by adsorbing the surface, thereby improving the stability of the component's positioning during welding.

[0057] The sealing gasket 370 in the above-mentioned laser welding equipment for new energy vehicle parts is enclosed to form a general suction cup structure, and its adsorption capacity is relatively general. If the adsorption structure can be designed and adjusted, the function of adsorbing and positioning parts can be further enhanced.

[0058] For specific settings, please refer to Figure 6 、 Figure 8 and Figure 9 The sealing gasket 370 includes a base pad layer 371, an outer edge layer 373, and a convex edge layer 374. An outer edge groove 362 is provided on the outer edge of the top of the magnet block 360. A through opening 372 is provided in the middle of the base pad layer 371, and the base pad layer 371 is fixedly sleeved in the outer edge groove 362. The outer edge layer 373 is integrally formed and provided on the outer edge of the top of the base pad layer 371, and the inner wall of the outer edge layer 373 is provided with an inclined surface. The convex edge layer 374 of an annular structure is provided in the middle of the inclined surface of the outer edge layer 373, and a small hole 375 is provided on the side edge of the bottom of the convex edge layer 374.

[0059] Among them, the base cushion layer 371, the outer edge layer 373, and the convex edge layer 374 are integrally formed. The inner wall of the convex edge layer 374 and the inclined surface of the outer edge layer 373 form an adsorption cavity. Through the cooperation of the small hole 375, the outer wall of the convex edge layer 374 and the inclined outer edge layer 373 form another adsorption cavity. That is, when the sealing gasket 370 contacts the surface of the workpiece to form a negative pressure, two adsorption cavities can be formed for graded adsorption, which can increase the adsorption contact area between the sealing gasket 370 and the workpiece, improve the adsorption capacity of the parts, and further improve the positioning effect of the workpiece inside the limit frame 330.

[0060] It should be noted that the specific models and specifications of the hydraulic cylinder 133, first motor 211, second motor 212, third motor 213, and drive motor 341 are selected based on the actual specifications of the device. The specific selection and calculation methods utilize existing techniques in the art and are therefore not described in detail here. The power supply and principles of the hydraulic cylinder 133, first motor 211, second motor 212, third motor 213, and drive motor 341 are well known to those skilled in the art and will not be described in detail here.

[0061] The foregoing is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures.

[0062] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A laser welding equipment for new energy vehicle parts, characterized in that: include: A laser welding device body (10), the laser welding device body (10) comprising a base (110), a welding assembly (120), and a lifting and mounting assembly (130), wherein the welding assembly (120) and the lifting and mounting assembly (130) are both mounted above the base (110); A universal adjustment mechanism (20), wherein the lifting and mounting assembly (130) drives the universal adjustment mechanism (20) to move in a vertical direction; A workpiece support and adjustment mechanism (30), the workpiece support and adjustment mechanism (30) comprises a base plate (310), an arc-shaped guide rail (320), an arc-shaped limit frame (330), a rotating drive member (340), an arc-shaped slide rail (350) and a magnet block (360), the universal adjustment mechanism (20) drives the base plate (310) to move and adjust, two groups of the arc-shaped guide rails (320) are respectively fixed on both sides above the base plate (310), the rotating drive member (340) is installed on the base plate (310) to drive the arc-shaped slide rail (350) to slide along the arc-shaped guide rail (320), the end of the limit frame (330) is fixedly connected to the arc-shaped slide rail (350), a strip plate is provided in a slot inside the limit frame (330), and the magnet block (360) is fixedly embedded in a mounting opening on the strip plate; A pneumatic actuator (40) comprising an air housing (410), a piston (420), a pull rod (430) and an air pipe (440), a sealing gasket (370) being provided on the magnet block (360), and an air vent (361) being provided in the middle of the magnet block (360), the air housing (410) being located below the limit frame (330), and an end face of the air housing (410) being fixedly connected to the arc guide rail (320), and the piston (420) being located above the air housing. (410), one end of the pull rod (430) is fixedly connected to the piston (420), and the other end of the pull rod (430) slides through the gas shell (410) and is connected to the bottom of the strip plate in the limit frame (330), one end of the air pipe (440) passes through the strip plate and is connected to the bottom of the vent (361), the side of the piston (420) away from the pull rod (430) forms an air pressure chamber with the gas shell (410), and the other end of the air pipe (440) is connected to the air pressure chamber inside the gas shell (410); The sealing gasket (370) includes a base pad layer (371), an outer edge layer (373) and a convex edge layer (374); an outer edge groove (362) is provided on the outer edge of the top of the magnet block (360); a through opening (372) is provided in the middle of the base pad layer (371); and the base pad layer (371) is fixedly sleeved in the outer edge groove (362); the outer edge layer (373) is integrally formed and provided on the outer edge of the top of the base pad layer (371); and the inner wall of the outer edge layer (373) is provided as an inclined surface; the convex edge layer (374) of an annular structure is provided on the outer edge layer (373); ), and a small hole (375) is provided on the side edge of the bottom of the convex edge layer (374); the base cushion layer (371), the outer edge layer (373), and the convex edge layer (374) are integrally formed; the inner wall of the convex edge layer (374) and the inclined surface of the outer edge layer (373) form an adsorption cavity; through the cooperation of the small hole (375), the outer wall of the convex edge layer (374) and the inclined outer edge layer (373) form another adsorption cavity; when the sealing gasket (370) contacts the surface of the workpiece to form a negative pressure, two adsorption cavities are formed for graded adsorption.

2. The laser welding equipment for new energy vehicle parts according to claim 1, characterized in that: The welding assembly (120) comprises a welding head (121) and a support arm (122); the bottom of the support arm (122) is fixedly arranged with the base (110); and the welding head (121) is mounted on the top of the support arm (122).

3. The laser welding equipment for new energy vehicle parts according to claim 1, characterized in that: The lifting and mounting assembly (130) includes a fixed seat (131), a slide seat (132), a hydraulic cylinder (133) and a bracket (134). The fixed seat (131) is fixedly arranged on the base (110). The hydraulic cylinder (133) is installed above the fixed seat (131) to drive the slide seat (132) to rise and fall. The bracket (134) is connected to the slide seat (132).

4. The laser welding equipment for new energy vehicle parts according to claim 3, characterized in that: The lifting installation assembly (130) further includes a shield shell, which is located outside the hydraulic cylinder (133) and is detachably mounted on the fixing seat (131).

5. The laser welding equipment for new energy vehicle parts according to claim 3, characterized in that: The universal adjustment mechanism (20) includes a universal moving assembly (210) and a seat frame (220). The universal moving assembly (210) includes a first motor (211), a second motor (212), a third motor (213), a first connecting arm (214), and a second connecting arm (215). The first motor (211) is installed at the end of the bracket (134) to drive the first connecting arm (214) to rotate. The second motor (212) is installed at the other end of the first connecting arm (214) to drive the second connecting arm (215) to rotate. The third motor (213) is installed at the other end of the second connecting arm (215).

6. The laser welding equipment for new energy vehicle parts according to claim 5, characterized in that: The seat frame (220) comprises an upper frame plate (221), a lower frame plate (222) and a connecting block (223); the output shaft end of the third motor (213) is connected to the upper frame plate (221); and the lower frame plate (222) is fixedly connected to the upper frame plate (221) via the connecting block (223).

7. The laser welding equipment for new energy vehicle parts according to claim 6, characterized in that: A first through-hole is provided on the lower frame plate (222), and the lower frame plate (222) is positioned outside the third motor (213).

8. The laser welding equipment for new energy vehicle parts according to claim 6, characterized in that: A second through-hole is provided on the bottom plate (310), and the bottom plate (310) is located outside the third motor (213).

9. The laser welding equipment for new energy vehicle parts according to claim 1, characterized in that: The rotary drive member (340) comprises a drive motor (341) and a drive block (342), wherein the drive motor (341) is mounted above the base plate (310), and the drive block (342) is fixedly sleeved on the output shaft end of the drive motor (341).

10. The laser welding equipment for new energy vehicle parts according to claim 9, characterized in that: The bottom end of the arc-shaped guide rail (320) is provided with an escape opening for evading the driving block (342).

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