Welding device for new energy battery module copper-aluminum composite bar production

Abstract

The invention relates to the technical field of new energy automobile machining, and discloses a welding device for new energy battery module copper-aluminum composite bar production, which comprises a welding machining platform, a portal frame mechanism is mounted on the side edge of the top surface of the welding machining platform, and a laser welding machine is mounted in the middle of the portal frame mechanism. The three laser welding limiting end strips are arranged side by side, laser welding assistance can be conducted on three welding point positions at the laser welding limiting end strips, and therefore the laser welding machine can conduct welding treatment on the three point positions of the battery module copper-aluminum composite bar at a time under control of the portal frame mechanism; and compared with a traditional laser welding device for welding a single point at a time, the welding efficiency is greatly improved, single-time multi-point welding can be conveniently conducted on the battery module copper-aluminum composite bar of a plurality of parallel welding points, the machining efficiency of the laser welding device is improved, and the production cost is reduced. And the effect of efficiently and quickly processing a plurality of parallel copper-aluminum composite bars of the battery module is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle processing, and in particular to a welding device for producing copper-aluminum composite bars of new energy battery modules. Background Art

[0002] The copper-aluminum composite bar of the new energy battery module is a composite material that combines the advantages of copper and aluminum. It is widely used in the connection system of new energy batteries. It is used in new energy vehicles and can be used to connect battery modules to provide an efficient and stable current transmission path. This material is designed to improve conductivity while reducing weight, thereby meeting the application scenarios with high requirements for weight and efficiency such as new energy vehicles. In the production process of copper-aluminum composite bars of new energy battery modules, welding equipment plays a vital role; and the welding method used in the production of copper-aluminum composite bars of new energy battery modules is mainly through laser welding. Laser welding uses a high-energy-density laser beam to precisely weld copper and aluminum materials. Laser welding, due to its advantages of high efficiency, high precision and easy automation, provides guarantees for the stability, strength and other qualities of the welding processing of copper-aluminum composite bars of new energy battery modules.

[0003] In the process of laser welding of copper-aluminum composite bars of new energy battery modules by currently available laser welding devices, due to the single welding point, when welding multiple parallel copper-aluminum composite bars of battery modules, it is necessary to weld each welding point one by one, which makes the processing efficiency low and is not conducive to efficient and rapid processing of multiple parallel copper-aluminum composite bars of battery modules. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a welding device for producing copper-aluminum composite bars of new energy battery modules, which solves the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A welding device for producing copper-aluminum composite bars of new energy battery modules, comprising a welding processing platform, a gantry mechanism is installed on the side of the top surface of the welding processing platform, a laser welding machine is installed in the middle of the gantry mechanism, both sides of the bottom surface of the laser welding machine are fixedly installed with support brackets, a terminal frame is fixedly installed at the bottom of the support bracket, a welding operation plate is fixedly installed at the front side of the terminal frame, and an adjustment mechanism bracket is fixedly installed at the side end of the welding operation plate, a cross rail tube is fixedly installed on the front and back sides of the bottom of the adjustment mechanism bracket, and the surface of the cross rail tube is laterally slidably sleeved There is a rail sleeve, and a connecting support plate is fixedly installed on the surface of the rail sleeve, a laser-welded limit end strip is fixedly installed on the bottom of the cross rail tube on the front side of the adjusting mechanism bracket, a transmission support plate is fixedly installed on the top of the cross rail tube on the back side of the adjusting mechanism bracket, and an internally threaded cross tube is fixedly installed on the top of the transmission support plate, a motor mechanism is installed on the outside of the adjusting mechanism bracket, and a threaded shaft is installed on the output end of the motor mechanism, the shaft body of the threaded shaft is threadedly connected in the internally threaded cross tube, a longitudinal support plate is fixedly installed in the middle of the back side of the welding work plate, and the threaded shaft is rotatably connected to the adjusting mechanism bracket and the longitudinal support plate.

[0007] Preferably, the support bracket includes a support ceiling arm, a support shaft rod and a support bottom arm, the top and bottom of the support shaft rod are respectively fixedly connected to the support ceiling arm and the support bottom arm, and the support ceiling arm is fixedly installed on the bottom surface of the laser welding machine; the laser welding limit end strip includes an L-shaped end strip and a beam position through hole, and the beam position through hole passes through the bottom L-shaped end strip opened at the L-shaped end strip; the number of the laser welding limit end strips is three, and the laser welding limit end strip located in the middle is fixedly connected to the middle of the cross rail tube, and the two laser welding limit end strips located on both sides are respectively fixedly connected to the two rail sleeves.

[0008] Preferably, the terminal frame includes a horizontal frame and terminal assembly bolts, and both ends of the horizontal frame are fixedly connected to the supporting bottom arm; the welding work plate includes a plate body and an assembly through hole, and the assembly through hole is opened on the top edge of the plate body, and the plate body is fixedly assembled with the horizontal frame through the assembly through hole and the terminal assembly bolts.

[0009] Preferably, the adjustment mechanism bracket includes a side support plate and a transverse angle plate, the end of the transverse angle plate is fixedly connected to the side support plate, and the side support plate and the transverse angle plate are respectively welded and fixed to the side edge and the plate surface of the plate body.

[0010] Preferably, a bearing is sleeved on the surface of the threaded shaft close to the motor mechanism, and the threaded shaft is rotatably connected to the side support plate through the bearing; a bearing seat is sleeved on the end of the threaded shaft away from the motor mechanism, and the end of the threaded shaft is rotatably connected to the longitudinal support plate through the bearing seat.

[0011] Preferably, the motor mechanism includes a servo motor and a reducer, the reducer is arranged at the output end of the servo motor, and the reducer is fixedly connected to the side support plate, the servo motor output end is connected to the reducer input end, and the reducer output end is connected to the end of the threaded shaft.

[0012] Preferably, the gantry mechanism includes a Y-axis bracket, a Y-axis mechanism, an X-axis mechanism and a Z-axis mechanism, the Y-axis mechanism is installed on the top of the Y-axis bracket, the output end of the Y-axis mechanism is connected to the X-axis mechanism, the output end of the X-axis mechanism is connected to the Z-axis mechanism, and the output end of the Z-axis mechanism is connected to a laser welding machine; the Y-axis bracket includes a longitudinal tube frame, a longitudinal angle plate and a wire hole, the longitudinal angle plate is fixedly installed on the top of the longitudinal tube frame, and the wire hole is opened through the side wall of the longitudinal tube frame.

[0013] Preferably, the Y-axis mechanism includes a Y-axis rodless cylinder and a Y-axis cylinder piston, the Y-axis cylinder piston is arranged at the output end of the Y-axis rodless cylinder, and the bottom of the Y-axis rodless cylinder is fixedly connected to the longitudinal pipe rack and the top of the longitudinal angle plate; the X-axis mechanism includes an X-axis rodless cylinder and an X-axis cylinder piston, the X-axis cylinder piston is arranged at the output end of the X-axis rodless cylinder, and the bottom surface of the end of the X-axis rodless cylinder is fixedly connected to the Y-axis cylinder piston; the Z-axis mechanism includes a Z-axis rodless cylinder and a Z-axis cylinder piston, the Z-axis cylinder piston is arranged at the output end of the Z-axis rodless cylinder, the back side of the Z-axis rodless cylinder is fixedly installed on the surface of the X-axis cylinder piston, and the laser welding machine is installed on the surface of the Z-axis cylinder piston.

[0014] Preferably, a welding machine base is fixedly provided on the bottom surface of the welding processing platform, and a machine compartment cover frame is provided on one side of the welding machine base.

[0015] Preferably, the welding machine base includes a machine base frame, an overlapping foot and an emergency brake button, the overlapping foot is fixedly mounted on the corner of the bottom surface of the machine base frame, and the emergency brake button is arranged on the front side of the machine base frame; the machine compartment cover frame includes a hinged cover plate, a cabinet door handle and heat dissipation holes, the cabinet door handle is arranged in the middle of the hinged cover plate, the heat dissipation holes are opened through the bottom of the hinged cover plate, and the hinged cover plate is hingedly arranged on the side of the machine base frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This welding device for the production of copper-aluminum composite bars of new energy battery modules can assist in laser welding of three welding points at the laser welding limit end bars by arranging three laser welding limit end bars in parallel, so that the laser welding machine can perform welding processing on three points of the copper-aluminum composite bar of the battery module at a time under the control of the gantry mechanism. Compared with the traditional laser welding device that welds a single point at a time, the welding efficiency is greatly improved, and it is convenient to perform single multi-point welding on the copper-aluminum composite bar of the battery module with multiple parallel welding points, thereby improving the processing efficiency of the laser welding device and achieving the effect of facilitating efficient and rapid processing of multiple parallel copper-aluminum composite bars of battery modules.

[0018] 2. This welding device for the production of copper-aluminum composite bars of new energy battery modules has three laser welding limit end bars, one fixed in the middle and two adjustable on both sides, and the two laser welding limit end bars on both sides can be adjusted by a motor mechanism, so that the two laser welding limit end bars on both sides can be adjusted according to processing requirements, thereby achieving the effect of facilitating the adjustment of the spacing between the three laser welding limit end bars, and then adapting to different welding point spacings of copper-aluminum composite bars of different battery modules, achieving the effect of improving adaptability, achieving the effect of facilitating adaptive adjustment, reducing the replacement and assembly procedures, and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional view of the structure of the present invention;

[0020] Figure 2 Another stereoscopic view of the structure of the present invention;

[0021] Figure 3 It is a three-dimensional view of a part of the structure of the present invention;

[0022] Figure 4 It is a three-dimensional view of another part of the structure of the present invention;

[0023] Figure 5 It is a three-dimensional view of another part of the structure of the present invention;

[0024] Figure 6 It is a three-dimensional view of another part of the structure of the present invention;

[0025] Figure 7 It is a three-dimensional view of another part of the structure of the present invention;

[0026] Figure 8 This is an enlarged stereoscopic view of the connecting support plate of the present invention.

[0027] In the figure: 1. welding machine base; 2. machine compartment cover frame; 3. welding processing platform; 4. Y-axis bracket; 5. Y-axis mechanism; 6. X-axis mechanism; 7. Z-axis mechanism; 9. laser welding machine; 10. support and hanger; 11. terminal frame; 12. welding operation board; 13. adjustment mechanism bracket; 14. cross rail tube; 15. rail sleeve; 16. connecting support plate; 17. laser welding limit end strip; 18. transmission support plate; 19. internal thread cross pipe; 20. threaded shaft; 21. motor mechanism; 22. bearing; 23. bearing seat; 24. longitudinal support plate;

[0028] 101, machine base; 102, overlapped foot; 103, emergency brake button; 201, hinged cover; 202, cabinet door handle; 203, heat dissipation hole; 401, longitudinal pipe frame; 402, longitudinal angle plate; 403, wire hole; 501, Y-axis rodless cylinder; 502, Y-axis cylinder piston; 601, X-axis rodless cylinder; 602, X-axis cylinder piston; 701, Z-axis rodless cylinder; 70 2. Z-axis cylinder piston; 1001. Support top arm; 1002. Support shaft; 1003. Support bottom arm; 1101. Horizontal frame; 1102. Terminal assembly bolts; 1201. Plate body; 1202. Assembly through hole; 1301. Side support plate; 1302. Horizontal angle plate; 1701. L-shaped end strip; 1702. Beam through hole; 2101. Servo motor; 2102. Reducer. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example: Refer to Figure 1-7A welding device for producing copper-aluminum composite bars of new energy battery modules, comprising a welding processing platform 3, a gantry mechanism is installed on the side of the top surface of the welding processing platform 3, a laser welding machine 9 is installed in the middle of the gantry mechanism, and both sides of the bottom surface of the laser welding machine 9 are fixedly installed with support brackets 10, and a terminal frame 11 is fixedly installed at the bottom of the support bracket 10, and a welding operation plate 12 is fixedly installed on the front side of the terminal frame 11, and an adjustment mechanism bracket 13 is fixedly installed on the side end of the welding operation plate 12, and a cross rail tube 14 is fixedly installed on the front and back sides of the bottom of the adjustment mechanism bracket 13, and a rail sleeve 15 is slidably sleeved on the surface of the cross rail tube 14, and the rail sleeve A connecting support plate 16 is fixedly installed on the surface of 15, a laser welding limit end strip 17 is fixedly installed on the bottom of the cross rail tube 14 on the front side of the adjusting mechanism bracket 13, a transmission support plate 18 is fixedly installed on the top of the cross rail tube 14 on the back side of the adjusting mechanism bracket 13, and an internally threaded cross tube 19 is fixedly installed on the top of the transmission support plate 18. A motor mechanism 21 is installed on the outside of the adjusting mechanism bracket 13, and a threaded shaft 20 is installed on the output end of the motor mechanism 21. The shaft body of the threaded shaft 20 is threadedly connected in the internally threaded cross tube 19. A longitudinal support plate 24 is fixedly installed in the middle of the back side of the welding operation plate 12, and the threaded shaft 20 is rotatably connected to the adjusting mechanism bracket 13 and the longitudinal support plate 24.

[0031] In the present invention, the support bracket 10 includes a support ceiling arm 1001, a support shaft rod 1002 and a support bottom arm 1003, the top and bottom of the support shaft rod 1002 are respectively fixedly connected to the support ceiling arm 1001 and the support bottom arm 1003, and the support ceiling arm 1001 is fixedly installed on the bottom surface of the laser welding machine 9; the laser welding limit end strip 17 includes an L-shaped end strip 1701 and a beam position through hole 1702, and the beam position through hole 1702 passes through the bottom L-shaped end strip 1701 opened at the L-shaped end strip 1701; the number of laser welding limit end strips 17 is three, and the laser welding limit end strip 17 located in the middle is fixedly connected to the middle of the cross rail tube 14, and the two laser welding limit end strips 17 located on both sides are respectively fixedly connected to the two rail sleeves 15;

[0032] More specifically, by setting three laser welding limit end strips 17 consisting of a fixed laser welding limit end strip 17 and two movable and adjustable laser welding limit end strips 17, the spacing between the three laser welding limit end strips 17 can be adjusted differentially, which is conducive to adapting to more complex processing conditions.

[0033] In the present invention, the terminal frame 11 includes a horizontal frame 1101 and terminal assembly bolts 1102, and both ends of the horizontal frame 1101 are fixedly connected to the supporting bottom arm 1003; the welding operation plate 12 includes a plate body 1201 and an assembly through hole 1202, and the assembly through hole 1202 is opened on the top edge of the plate body 1201. The plate body 1201 is fixedly assembled with the horizontal frame 1101 through the assembly through hole 1202 and the terminal assembly bolts 1102;

[0034] More specifically, the plate body 1201 is fixedly assembled with the horizontal frame 1101 through the assembly through holes 1202 and the terminal assembly bolts 1102, which can be easily maintained and replaced, and the entire module can be disassembled and installed together during disassembly and installation.

[0035] In the present invention, the adjustment mechanism bracket 13 includes a side support plate 1301 and a transverse angle plate 1302, the end of the transverse angle plate 1302 is fixedly connected to the side support plate 1301, and the side support plate 1301 and the transverse angle plate 1302 are respectively welded and fixed to the side edge and the plate surface of the plate body 1201;

[0036] More specifically, by providing the transverse angle plate 1302 to be fixedly connected to the side support plate 1301 and the plate body 1201, the connection stability between the side support plate 1301 and the plate body 1201 is improved, thereby improving the stress resistance and structural strength.

[0037] In the present invention, the surface of the threaded shaft 20 close to the motor mechanism 21 is sleeved with a bearing 22, and the threaded shaft 20 is rotatably connected to the side support plate 1301 through the bearing 22; the end of the threaded shaft 20 away from the motor mechanism 21 is sleeved with a bearing seat 23, and the end of the threaded shaft 20 is rotatably connected to the longitudinal support plate 24 through the bearing seat 23;

[0038] More specifically, by arranging the bearing 22 and the bearing seat 23 to provide rotation support at the end of the threaded shaft 20 or near the end, the stability of the threaded shaft 20 is improved, thereby ensuring the stability of the transmission.

[0039] In the present invention, the motor mechanism 21 includes a servo motor 2101 and a reducer 2102, the reducer 2102 is arranged at the output end of the servo motor 2101, and the reducer 2102 is fixedly connected to the side support plate 1301, the output end of the servo motor 2101 is connected to the input end of the reducer 2102, and the output end of the reducer 2102 is connected to the end of the threaded shaft 20;

[0040] More specifically, by providing a reducer 2102 as a buffer transmission structure for the servo motor 2101 to drive the threaded shaft 20, the speed control and driving torque of the threaded shaft 20 are better controlled, thereby reducing the speed and increasing the torque.

[0041] In the present invention, the gantry mechanism includes a Y-axis bracket 4, a Y-axis mechanism 5, an X-axis mechanism 6 and a Z-axis mechanism 7. The Y-axis mechanism 5 is installed on the top of the Y-axis bracket 4. The output end of the Y-axis mechanism 5 is connected to the X-axis mechanism 6. The output end of the X-axis mechanism 6 is connected to the Z-axis mechanism 7. The output end of the Z-axis mechanism 7 is connected to the laser welding machine 9. The Y-axis bracket 4 includes a longitudinal tube frame 401, a longitudinal angle plate 402 and a wire hole 403. The longitudinal angle plate 402 is fixedly installed on the top of the longitudinal tube frame 401. The wire hole 403 is opened through the side wall of the longitudinal tube frame 401.

[0042] More specifically, a Y-axis bracket 4 is provided to support the Y-axis mechanism 5 so that the fixed point of the Y-axis mechanism 5 can maintain a certain height from the welding processing platform 3, providing installation space for the X-axis mechanism 6 and the Z-axis mechanism 7 and a working space for the laser welding machine 9.

[0043] In the present invention, the Y-axis mechanism 5 includes a Y-axis rodless cylinder 501 and a Y-axis cylinder piston 502, the Y-axis cylinder piston 502 is arranged at the output end of the Y-axis rodless cylinder 501, and the bottom of the Y-axis rodless cylinder 501 is fixedly connected to the longitudinal pipe frame 401 and the top of the longitudinal angle plate 402; the X-axis mechanism 6 includes an X-axis rodless cylinder 601 and an X-axis cylinder piston 602, the X-axis cylinder piston 602 is arranged at the output end of the X-axis rodless cylinder 601, and the bottom surface of the end of the X-axis rodless cylinder 601 is fixedly connected to the Y-axis cylinder piston 502; the Z-axis mechanism 7 includes a Z-axis rodless cylinder 701 and a Z-axis cylinder piston 702, the Z-axis cylinder piston 702 is arranged at the output end of the Z-axis rodless cylinder 701, the back side of the Z-axis rodless cylinder 701 is fixedly installed on the surface of the X-axis cylinder piston 602, and the laser welding machine 9 is installed on the surface of the Z-axis cylinder piston 702;

[0044] More specifically, the Y-axis mechanism 5, the X-axis mechanism 6 and the Z-axis mechanism 7 are combined with each other to provide full adjustment of the position of the laser welding machine 9, and realize full coordinate adjustment of the horizontal, vertical and height points.

[0045] In the present invention, a welding machine base 1 is fixedly arranged on the bottom surface of the welding processing platform 3, and a machine compartment cover frame 2 is arranged on one side of the welding machine base 1;

[0046] More specifically, a car cover frame 2 is disposed on the side of the welding machine base 1 to provide sealing for the welding machine base 1, which can be opened during maintenance operations to provide personnel operation.

[0047] In the present invention, the welding machine base 1 includes a machine base frame 101, a lapped foot 102 and an emergency brake button 103, the lapped foot 102 is fixedly installed at the corner of the bottom surface of the machine base frame 101, and the emergency brake button 103 is arranged on the front side of the machine base frame 101; the machine compartment cover frame 2 includes a hinged cover plate 201, a cabinet door handle 202 and a heat dissipation hole 203, the cabinet door handle 202 is arranged in the middle of the hinged cover plate 201, the heat dissipation hole 203 is opened through the bottom of the hinged cover plate 201, and the hinged cover plate 201 is hingedly arranged on the side of the machine base frame 101;

[0048] More specifically, a cabinet door handle 202 is provided on the plate surface of the hinged cover plate 201 to provide closing and locking as well as opening and closing operations, and a heat dissipation hole 203 is provided on the plate surface of the hinged cover plate 201 to provide channel support for heat dissipation.

[0049] Working principle:

[0050] When adjusting the spacing of the three laser welding limit end strips 17, start the motor mechanism 21 to drive the threaded shaft 20 to rotate, so that the threaded shaft 20 can rotate stably under the support of the bearing 22 and the bearing seat 23, and the rail sleeve 15 is connected with the connecting support plate 16 and the rail sleeve 15 through the transmission support plate 18, that is, it is limited by the sliding of the rail sleeve 15 and the cross rail tube 14, so that the rail sleeve 15 moves laterally on the surface of the rotating threaded shaft 20, and the rail sleeve 15 simultaneously drives the transmission support plate 18 and the connecting support plate 16 and the rail sleeve 15 to move laterally, that is, drives the rail sleeve 15 to slide stably on the surface of the cross rail tube 14, so that the rail sleeve 15 and the laser welding limit end strip 17 fixed at the bottom thereof can be moved laterally, so that the spacing between the laser welding limit end strips 17 distributed on both sides and the laser welding limit end strip 17 fixed in the middle can be adjusted, thereby realizing the spacing adjustment of the three laser welding limit end strips 17.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for producing copper-aluminum composite bars of new energy battery modules, comprising a welding processing platform (3), characterized in that: A gantry mechanism is installed on the side of the top surface of the welding processing platform (3), a laser welding machine (9) is installed in the middle of the gantry mechanism, and support brackets (10) are fixedly installed on both sides of the bottom surface of the laser welding machine (9), and a terminal frame (11) is fixedly installed at the bottom of the support bracket (10), and a welding work plate (12) is fixedly installed on the front side of the terminal frame (11), and an adjustment mechanism bracket (13) is fixedly installed on the side end of the welding work plate (12), and a cross rail tube (14) is fixedly installed on the front and back sides of the bottom of the adjustment mechanism bracket (13), and a rail sleeve (15) is laterally slidably sleeved on the surface of the cross rail tube (14), and a connecting support plate (16) is fixedly installed on the surface of the rail sleeve (15). A laser welded limit end strip (17) is fixedly installed at the bottom of the transverse rail tube (14) on the front side of the adjustment mechanism bracket (13); a transmission support plate (18) is fixedly installed at the top of the transverse rail tube (14) on the back side of the adjustment mechanism bracket (13); an internally threaded transverse tube (19) is fixedly installed at the top of the transmission support plate (18); a motor mechanism (21) is installed on the outside of the adjustment mechanism bracket (13); a threaded shaft (20) is installed at the output end of the motor mechanism (21); the shaft body of the threaded shaft (20) is threadedly connected in the internally threaded transverse tube (19); a longitudinal support plate (24) is fixedly installed at the middle of the back side of the welding operation plate (12); and the threaded shaft (20) is rotatably connected to the adjustment mechanism bracket (13) and the longitudinal support plate (24).

2. A welding device for producing copper-aluminum composite bars of new energy battery modules according to claim 1, characterized in that: The support bracket (10) comprises a support ceiling arm (1001), a support shaft rod (1002) and a support bottom arm (1003), the top and bottom of the support shaft rod (1002) are respectively fixedly connected to the support ceiling arm (1001) and the support bottom arm (1003), and the support ceiling arm (1001) is fixedly installed on the bottom surface of the laser welding machine (9); the laser welding limit end strip (17) comprises an L-shaped end strip (1701) and a beam position through hole (1702), and the beam position through hole (1702) passes through the bottom L-shaped end strip (1701) opened at the L-shaped end strip (1701); the number of the laser welding limit end strips (17) is three, and the laser welding limit end strip (17) located in the middle is fixedly connected to the middle of the cross rail tube (14), and the two laser welding limit end strips (17) located on both sides are respectively fixedly connected to the two rail sleeves (15).

3. A welding device for producing copper-aluminum composite bars of new energy battery modules according to claim 2, characterized in that: The terminal frame (11) comprises a transverse frame (1101) and terminal assembly bolts (1102), and both ends of the transverse frame (1101) are fixedly connected to the supporting bottom arm (1003); the welding operation plate (12) comprises a plate body (1201) and an assembly through hole (1202), and the assembly through hole (1202) is opened on the top edge of the plate body (1201), and the plate body (1201) is fixedly assembled with the transverse frame (1101) through the assembly through hole (1202) and the terminal assembly bolts (1102).

4. A welding device for producing copper-aluminum composite bars for new energy battery modules according to claim 3, characterized in that: The adjustment mechanism bracket (13) comprises a side support plate (1301) and a transverse angle plate (1302), the end of the transverse angle plate (1302) is fixedly connected to the side support plate (1301), and the side support plate (1301) and the transverse angle plate (1302) are respectively welded and fixed to the side edge and the plate surface of the plate body (1201).

5. A welding device for producing copper-aluminum composite bars for new energy battery modules according to claim 4, characterized in that: A bearing (22) is sleeved on the surface of the threaded shaft (20) close to the motor mechanism (21), and the threaded shaft (20) is rotatably connected to the side support plate (1301) via the bearing (22); a bearing seat (23) is sleeved on the end of the threaded shaft (20) away from the motor mechanism (21), and the end of the threaded shaft (20) is rotatably connected to the longitudinal support plate (24) via the bearing seat (23).

6. A welding device for producing copper-aluminum composite bars of new energy battery modules according to claim 1, characterized in that: The motor mechanism (21) comprises a servo motor (2101) and a reducer (2102); the reducer (2102) is arranged at the output end of the servo motor (2101), and the reducer (2102) is fixedly connected to the side support plate (1301); the output end of the servo motor (2101) is connected to the input end of the reducer (2102), and the output end of the reducer (2102) is connected to the end of the threaded shaft (20).

7. A welding device for producing copper-aluminum composite bars of new energy battery modules according to claim 1, characterized in that: The gantry mechanism comprises a Y-axis support (4), a Y-axis mechanism (5), an X-axis mechanism (6) and a Z-axis mechanism (7); the Y-axis mechanism (5) is installed on the top of the Y-axis support (4); the output end of the Y-axis mechanism (5) is connected to the X-axis mechanism (6); the output end of the X-axis mechanism (6) is connected to the Z-axis mechanism (7); the output end of the Z-axis mechanism (7) is connected to a laser welding machine (9); the Y-axis support (4) comprises a longitudinal tube frame (401), a longitudinal angle plate (402) and a wire hole (403); the longitudinal angle plate (402) is fixedly installed on the top of the longitudinal tube frame (401); and the wire hole (403) is opened through the side wall of the longitudinal tube frame (401).

8. A welding device for producing copper-aluminum composite bars for new energy battery modules according to claim 7, characterized in that: The Y-axis mechanism (5) comprises a Y-axis rodless cylinder (501) and a Y-axis cylinder piston (502), wherein the Y-axis cylinder piston (502) is arranged at the output end of the Y-axis rodless cylinder (501), and the bottom of the Y-axis rodless cylinder (501) is fixedly connected to the longitudinal pipe frame (401) and the top of the longitudinal angle plate (402); the X-axis mechanism (6) comprises an X-axis rodless cylinder (601) and an X-axis cylinder piston (602), wherein the X-axis cylinder piston (602) is arranged at the output end of the X-axis rodless cylinder (601). The output end of the Z-axis rodless cylinder (601) is fixedly connected to the bottom surface of the end of the Y-axis cylinder piston (502); the Z-axis mechanism (7) includes a Z-axis rodless cylinder (701) and a Z-axis cylinder piston (702), the Z-axis cylinder piston (702) is arranged at the output end of the Z-axis rodless cylinder (701), the back side of the Z-axis rodless cylinder (701) is fixedly installed on the surface of the X-axis cylinder piston (602), and the laser welding machine (9) is installed on the surface of the Z-axis cylinder piston (702).

9. A welding device for producing copper-aluminum composite bars of new energy battery modules according to claim 1, characterized in that: A welding machine base (1) is fixedly arranged on the bottom surface of the welding processing platform (3), and a machine compartment cover frame (2) is arranged on one side of the welding machine base (1).

10. A welding device for producing copper-aluminum composite bars of new energy battery modules according to claim 9, characterized in that: The welding machine base (1) comprises a machine base frame (101), a lapped foot base (102) and an emergency brake button (103), wherein the lapped foot base (102) is fixedly mounted on a corner of the bottom surface of the machine base frame (101), and the emergency brake button (103) is arranged on the front side of the machine base frame (101); the machine compartment cover frame (2) comprises a hinged cover plate (201), a cabinet door handle (202) and a heat dissipation hole (203), wherein the cabinet door handle (202) is arranged in the middle of the hinged cover plate (201), the heat dissipation hole (203) is penetrated and opened below the hinged cover plate (201), and the hinged cover plate (201) is hingedly arranged on the side of the machine base frame (101).

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