Cover plate pole welding structure

Abstract

The utility model relates to a cover plate pole welding structure which comprises a rotary disc, a fixed disc, a pole transfer assembly, a pole positioning assembly, a first welding assembly for welding a pole on the left side of a battery cover plate and a second welding assembly for welding a pole on the right side of the battery cover plate. A plurality of battery cover plate placing tables are annularly arranged on the rotating disc, limiting blocks for limiting the positions of battery cover plates are arranged on the peripheries of the battery cover plate placing tables, first positioning columns are arranged on the two sides of the battery cover plate placing tables, pin holes are formed in the first positioning columns, and the pole transferring assembly is fixed to the fixing disc; the pole positioning assembly is fixed to the side edge of the fixing disc and is opposite to the pole transferring assembly in position, and the first welding assembly is located on the side edge of the second welding assembly. According to the utility model, the cover plate can be prevented from shifting, the pole column positioning is realized, and the assembling process and the welding process of the pole column and the cover plate are integrated.

Description

Technical Field

[0001] The utility model relates to the technical field of cover plate pole welding, in particular to a cover plate pole welding structure. Background Art

[0002] Pole welding is one of the key links in the battery manufacturing process, which directly affects the performance and safety of the battery. Two poles are placed on a cover plate, and the welding with the battery cover plate is generally done by laser welding. Usually, the sealing ring is assembled on the battery cover plate first, and then the pole is placed on the sealing ring. The placed pole and cover plate are then transferred to the bottom of the welding gun to weld the pole and the battery cover plate. The pole placement process and the welding process are separated, which makes the pole welding process discontinuous. The position of the cover plate is prone to shift during the transportation process, and it takes a long time, reducing economic benefits. Utility Model Content

[0003] The utility model aims to provide a cover plate pole welding structure, which can integrate the assembly process and welding process of the pole and the cover plate and can prevent the cover plate from shifting.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cover plate pole welding structure, comprising a turntable, a fixed plate, a pole transfer assembly, a pole positioning assembly, a first welding assembly for welding the pole on the left side of the battery cover plate, and a second welding assembly for welding the pole on the right side of the battery cover plate, the fixed plate is located above the fixed plate, a plurality of battery cover plate placement platforms are arranged in a ring on the turntable, and limit blocks for limiting the position of the battery cover plate are arranged around the battery cover plate placement platforms, first positioning columns are arranged on both sides of the battery cover plate placement platforms, a first pin hole is opened on the first positioning column, the pole transfer assembly is fixed on the fixed plate, the pole positioning assembly is fixed on the side of the fixed plate and is opposite to the position of the pole transfer assembly, and the first welding assembly is located on the side of the second welding assembly.

[0005] Furthermore, the pole transfer assembly includes a first slide cylinder, a track plate, and a second slide cylinder. The first slide cylinder is fixed on the fixed plate, the track plate is fixed to the output end of the first slide cylinder, the second slide cylinder is fixed on the rear side of the first slide cylinder, the first fixed plate is fixed to the output end of the second slide cylinder, the first fixed plate is connected to the first L-shaped fixed plate through a first sliding member, the upper end of the first L-shaped fixed plate is fixed with a slider that can slide in the track plate, the front and rear ends of the first L-shaped fixed plate are both fixed with two L-shaped support plates, the support plates are fixed with extension plates, the extension plates are fixed with pneumatic suction cups, the rear end of the first L-shaped fixed plate is fixed with a long strip plate, and the lower surface of the long strip plate is provided with a first positioning pin opposite to the first pin hole.

[0006] Furthermore, the sliding member includes a first sliding groove and a sliding rail, the sliding rail is fixed to the back side of the first L-shaped fixing plate, the first sliding groove is fixed to the first fixing plate, and the first sliding groove slides on the sliding rail.

[0007] Furthermore, the pole positioning assembly includes a bearing seat, a left limit block and a right limit block, the left limit block is located on the left side of the right limit block, the left limit block and the right limit block are provided in two groups, and are both located on the left and right sides of the upper surface of the bearing seat, the lower surfaces of the left limit block and the right limit block are fixed with a second slide groove, and the bearing seat is fixed with a second slide rail that allows the second slide groove to slide, the left limit block and the right limit block are provided with semi-arc openings relatively positioned on the inner side, and a pole placement table is fixed in the semi-arc opening, the left limit block and Reset telescopic rods are fixed to both front and rear ends above the right limit block, one end of the reset telescopic rod is fixed to the left limit block, and the other end is fixed to the right limit block, guide wheels are fixed to the front surfaces of the left limit block and the right limit block, a support plate is arranged below the bearing seat, a top plate capable of propping up the left limit block and the right limit block is fixed above the support plate, the bearing seat is provided with an opening for allowing the top plate to pass through, a first telescopic cylinder is fixed below the support plate, and an output end of the first telescopic cylinder is fixed to the lower surface of the support plate.

[0008] Furthermore, the first welding assembly and the second welding assembly each include a welding gun fixing plate, a battery cover pressing member for fixing the transmitted battery cover, a pole fixing member for fixing the pole to be welded, an X-axis module, a Y-axis module and a Z-axis module, the X-axis module is fixed to the output end of the Y-axis module, the Z-axis module is fixed to the output end of the X-axis module, the welding gun fixing plate is fixed to the output end of the Z-axis module, and a welding gun is fixed on the welding gun fixing plate.

[0009] Furthermore, the battery cover plate pressing member includes a second L-shaped fixing plate, a second telescopic cylinder, and a third L-shaped fixing plate, the inner surface of the second L-shaped fixing plate is provided with a third slide groove, the outer surface of the third L-shaped fixing plate is provided with a third slide rail for allowing the third slide groove to slide, the third L-shaped fixing plate is fixed on the fixing plate, the second telescopic cylinder is fixed on the third L-shaped fixing plate, the output end of the second telescopic cylinder is fixed to the upper end of the second L-shaped fixing plate, the second fixing plate is fixed to the lower end of the outer surface of the second L-shaped fixing plate, the third fixing plates are fixed at both ends of the second fixing plate, the third fixing plate is fixed with a second positioning pin corresponding to the position of the pin hole, and a pressing plate for pressing the aluminum sheet is fixed in the middle of the second fixing plate.

[0010] Furthermore, the pole fixing member includes a semi-open fixing plate, a rotating cylinder, and a third telescopic cylinder. A pointed extension plate is fixed to one end of the semi-open fixing plate close to the pole, a pressure block that can press the pole is fixed to the lower surface of the pointed extension plate, and the output end of the third telescopic cylinder is fixed to the rotating cylinder, and the output end of the rotating cylinder is fixed to the semi-open fixing plate and is on the same axis as the pressure block.

[0011] Furthermore, a second positioning column is fixed to the rear side of the upper end of the bearing seat, and a second pin hole corresponding to the position of the first positioning pin is formed on the second positioning column.

[0012] The beneficial effects of the utility model: the utility model can place the pole positioned by the pole positioning assembly on the battery cover placement table through the pole transfer assembly, and realize the transmission of the battery cover by the turntable, thereby realizing the integration of the transfer and battery cover welding processes, so that the efficiency of the cover pole welding process is improved, and the position of the pole is positioned before it is transferred and loaded onto the battery cover, which can improve the yield rate of battery production. A plurality of limit blocks are arranged on the battery cover placement table, which can play a guiding role in the process of placing the battery cover, and can also limit the position of the battery cover to avoid displacement of the battery cover during the rotation of the turntable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the pole transmission assembly and the pole positioning assembly of the utility model;

[0015] Figure 3 is a structural schematic diagram of a first welding assembly;

[0016] Figure 4 The front view of the first welding assembly

[0017] Figure 5 This is a schematic diagram of the structure of the battery cover placement platform.

[0018] Among them: 1. Turntable, 2. Fixed plate, 3. Pole transfer assembly, 30. First slide cylinder, 31. Track plate, 32. Second slide cylinder, 33. First fixed plate, 34. First L-shaped fixed plate, 35. Support plate, 36. Extension plate, 37. Pneumatic suction cup, 38. Long strip plate, 39. First positioning pin, 4. Pole positioning assembly, 40. Bearing seat, 41. Left limit block, 42. Right limit block, 43. Second slide rail, 44. Semi-arc opening, 45. Pole placement table, 46. Reset telescopic rod, 47. Guide wheel, 481. Support plate, 482. Top plate, 49. First telescopic cylinder, 5. First welding assembly, 51. Welding gun fixing plate, 52. Battery cover clamp, 521. The second L-shaped fixing plate, 522, the second telescopic cylinder, 523, the third L-shaped fixing plate, 524, the third slide groove, 525, the third slide rail, 526, the second positioning pin, 527, the pressure plate, 528, the third fixing plate, 529, the second fixing plate, 53, the pole fixing piece, 531, the semi-open fixing plate, 532, the rotating cylinder, 533, the third telescopic cylinder, 534, the pointed extension plate, 54, the X-axis module, 55, the Y-axis module, 56, the Z-axis module, 57, the welding gun, 6, the second welding assembly, 7, the battery cover placement table, 8, the limit block, 9, the first positioning column, 10, the first pin hole, 11, the pole, 13, the second positioning column, 14, the second pin hole, 15, the battery cover. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings. For better understanding, the orientation of the present invention is described according to the orientation shown in the accompanying drawings and cannot be understood as a limitation of the present application; the following terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] See also Figures 1 to 5The utility model provides an embodiment: a cover plate pole welding structure, comprising a turntable 1, a fixed plate 2, a pole transfer assembly 3, a pole positioning assembly 4, a first welding assembly 5 for welding the pole 11 on the left side of the battery cover plate 15, and a second welding assembly 6 for welding the pole 11 on the right side of the battery cover plate 15, the fixed plate 2 is located above the fixed plate 2, a plurality of battery cover plate placement platforms 7 are arranged in a ring on the turntable 1, and limit blocks 8 for limiting the position of the battery cover plate 15 are arranged on the four sides of the battery cover plate placement platform 7, first positioning columns 9 are arranged on both sides of the battery cover plate placement platform 7, and first pin holes 10 are opened on the first positioning columns 9, the pole transfer assembly 3 is fixed on the fixed plate 2, the pole positioning assembly 4 is fixed on the side of the fixed plate 2 and is opposite to the position of the pole transfer assembly 3, and the first welding assembly 5 is located on the side of the second welding assembly 6. The turntable 1 can be fixed on the output end of the reduction motor to drive the turntable 1 to rotate. The fixed disk 2 is located above the turntable 1 and fixed to the ground through a bracket. It is used to carry the transfer assembly and part of the first welding assembly 5 and the second welding assembly 6. The pole transfer assembly 3 can transfer the pole 11 on the conveyor belt to the pole positioning assembly 4 to locate the position of the pole 11, and then the pole transfer assembly 3 transfers the pole 11 to the battery cover 15 with the sealing ring placed on it, which is sent by the turntable 1. The turntable 1 continues to rotate to transfer the battery cover 15 with the pole 11 placed on it to the bottom of the first welding assembly 5, and weld the pole 11 on the left side of the battery cover 15. After the welding is completed, the turntable 1 will continue to rotate and transfer it to the second welding assembly The technical group on the right side of the battery cover 15 is welded below the component 6, and the placed and positioned pole 11 is placed on the battery cover placement table 7, and the battery cover 15 is transferred by the turntable 1, thereby realizing the integration of the transportation and welding processes of the battery cover 15, so that the efficiency of the welding process of the cover pole 11 is improved, and the position of the pole 11 is positioned before it is transported and loaded onto the battery cover 15, which can improve the yield rate of battery production. A plurality of limit blocks 8 are arranged on the battery cover placement table 7, which can play a guiding role in the process of placing the battery cover 15, and can also limit the position of the battery cover 15 to avoid displacement of the battery cover 15 during the rotation of the turntable 1.

[0021] Please continue reading Figure 1 , Figure 2As shown, in one embodiment of the utility model, the pole transfer assembly 3 includes a first slide cylinder 30, a track plate 31, and a second slide cylinder 32. The first slide cylinder 30 is fixed on the fixed plate 2, the track plate 31 is fixed to the output end of the first slide cylinder 30, the second slide cylinder 32 is fixed to the rear side of the first slide cylinder 30, the output end of the second slide cylinder 32 is fixed to the first fixed plate 33, the first fixed plate 33 is connected to the first L-shaped fixed plate 34 through a first sliding member, the upper end of the first L-shaped fixed plate 34 is fixed with a slider that can slide in the track plate 31, the front and rear ends of the first L-shaped fixed plate 34 are fixed with two L-shaped support plates 35, the support plates 35 are fixed with extension plates 36, the extension plates 36 are fixed with pneumatic suction cups 37, the rear end of the first L-shaped fixed plate 34 is fixed with a long strip plate 38, and the lower surface of the long strip plate 38 is provided with a first positioning pin 39 opposite to the first pin hole 10. The second slide cylinder 32 can drive the first L-shaped fixing plate 34 and the components on the first L-shaped fixing plate 34 to move forward or backward. The slider on the first L-shaped fixing plate 34 can slide on the track plate 31 to guide the movement of the first L-shaped fixing plate 34. The first slide cylinder 30 can control the pole transfer assembly 3 including the pneumatic suction cup 37 and the first positioning pin 39 to move upward or downward. The sliding part can lock the first L-shaped fixing plate 34 at the output end of the second slide cylinder 32, and can also guide the up and down movement of the first L-shaped fixing plate 34. The first positioning pin 39 is opposite to the first pin hole 10, and plays a positioning role in the placement of the pole 11. When the pneumatic suction cups 37 on both sides of the front of the first L-shaped fixing plate 34 adsorb the pole 11 on the conveyor belt, the pneumatic suction cups 37 on both sides of the rear adsorb the pole 11 on the pole positioning assembly 4 to complete the positioning of the pole 11; when the pneumatic suction cups 37 on both sides of the front of the first L-shaped fixing plate 34 adsorb the pole 11 on the pole positioning assembly 4 to complete the positioning of the pole 11, the pneumatic suction cups 37 on both sides of the rear place the adsorbed pole 11 on the transferred battery cover 15.

[0022] Please continue reading Figure 1 , Figure 2 As shown, in one embodiment of the utility model, the sliding member includes a first slide groove and a slide rail, the slide rail is fixed to the back of the first L-shaped fixing plate 34, the first slide groove is fixed to the first fixing plate 33, and the first slide groove slides on the slide rail. The sliding member can lock the first L-shaped fixing plate 34 at the output end of the second slide cylinder 32, and can also guide the up and down movement of the first L-shaped fixing plate 34.

[0023] Please continue reading Figure 1 , Figure 2As shown, in one embodiment of the utility model, the pole positioning assembly 4 includes a bearing seat 40, a left limit block 41 and a right limit block 42, the left limit block 41 is located on the left side of the right limit block 42, the left limit block 41 and the right limit block 42 are provided with two groups, and are both located on the left and right sides of the upper surface of the bearing seat 40, the lower surfaces of the left limit block 41 and the right limit block 42 are fixed with a second slide groove, and the bearing seat 40 is fixed with a second slide rail 43 that allows the second slide groove to slide, and the left limit block 41 and the right limit block 42 are provided with a semi-arc opening 44 with opposite positions on the inner side, and a pole placement table 45 is fixed in the semi-arc opening 44, and the left limit block 41 and Reset telescopic rods 46 are fixed to both front and rear ends above the right limit block 42, one end of the reset telescopic rod 46 is fixed to the left limit block 41, and the other end is fixed to the right limit block 42, guide wheels 47 are fixed to the front surfaces of the left limit block 41 and the right limit block 42, a support plate 481 is arranged below the bearing seat 40, a top plate 482 that can prop open the left limit block 41 and the right limit block 42 is fixed above the support plate 481, the bearing seat 40 is provided with an opening for allowing the top plate 482 to pass through, a first telescopic cylinder 49 is fixed below the support plate 481, and the output end of the first telescopic cylinder 49 is fixed to the lower surface of the support plate 481. The diameter of the pole placement platform 45 is the same as the diameter of the pole 11, and the semi-arc opening 44 between the left limit block 41 and the right limit block 42 is also the same as the diameter of the pole 11. When the pole transfer assembly 3 transfers the pole 11, the first telescopic cylinder 49 is driven to control the top plate 482 to move upward, and the left limit block 41 and the right limit block 42 are separated by a certain distance. The guide wheel 47 can make it easier for the top plate 482 to separate the left limit block 41 and the right limit block 42, and can guide the movement of the top plate 482, and then the pole transfer assembly 3 places the pole 11 on the On the pole placement platform 45, the first telescopic cylinder 49 is driven to control the top plate 482 to move downward. Due to the force of the reset telescopic rod 46, the positions of the left limit block 41 and the right limit block 42 are driven to return, and the position of the pole 11 is automatically corrected and positioned. The first telescopic cylinder 49 is driven again to control the top plate 482 to move upward, and the left limit block 41 and the right limit block 42 are separated by a certain distance. Then, the pole 11 is transferred to the battery cover 15 by the pole transfer assembly 3, and the pole 11 to be positioned continues to be placed on the pole placement platform 45 to repeat the process for positioning.

[0024] Please continue reading Figure 1 , Figure 3 , Figure 4As shown, in one embodiment of the utility model, the first welding assembly 5 and the second welding assembly 6 both include a welding gun fixing plate 51, a battery cover pressing member 52 for fixing the transferred battery cover 15, a pole fixing member 53 for fixing the pole 11 to be welded, an X-axis module 54, a Y-axis module 55 and a Z-axis module 56, wherein the X-axis module 54 is fixed to the output end of the Y-axis module 55, the Z-axis module 56 is fixed to the output end of the X-axis module 54, the welding gun fixing plate 51 is fixed to the output end of the Z-axis module 56, and a welding gun 57 is fixed to the welding gun fixing plate 51. The X-axis module 54, the Y-axis module 55 and the Z-axis module 56 can control the welding gun 57 to take a positive circular path when welding the pole 11.

[0025] Please continue reading Figure 1 , Figure 3 , Figure 4 As shown, in one embodiment of the utility model, the battery cover plate pressing member 52 includes a second L-shaped fixing plate 521, a second telescopic cylinder 522, and a third L-shaped fixing plate 523. The inner surface of the second L-shaped fixing plate 521 is provided with a third slide groove 524, and the outer surface of the third L-shaped fixing plate 523 is provided with a third slide rail 525 for allowing the third slide groove 524 to slide. The third L-shaped fixing plate 523 is fixed on the fixing plate 2, the second telescopic cylinder 522 is fixed on the third L-shaped fixing plate 523, and the output end of the second telescopic cylinder 522 is fixed to the upper end of the second L-shaped fixing plate 521. A second fixing plate 529 is fixed to the lower end of the outer surface of the second L-shaped fixing plate 521, and third fixing plates 528 are fixed at both ends of the second fixing plate 529. A second positioning pin 526 corresponding to the position of the pin hole is fixed on the third fixing plate 528, and a pressing plate 527 for pressing the aluminum sheet is fixed in the middle of the second fixing plate 529. The second telescopic cylinder 522 can drive the second L-shaped fixing plate 521 to move upward or downward on the third fixing plate 528 to drive the second positioning pin 526 to be positioned with the positioning hole on the battery cover placement platform 7, so that the pressing plate 527 can press the battery cover 15.

[0026] Please continue reading Figure 1 , Figure 3 , Figure 4As shown, in one embodiment of the utility model, the pole fixing member 53 includes a semi-open fixing plate 531, a rotating cylinder 532, and a third telescopic cylinder 533. The semi-open fixing plate 531 is fixed with a pointed extension plate 534 at one end close to the pole 11, and a pressing block that can press the pole 11 is fixed on the lower surface of the pointed extension plate 534. The output end of the third telescopic cylinder 533 is fixed with the rotating cylinder 532, and the output end of the rotating cylinder 532 is fixed on the semi-open fixing plate 531 and is on the same axis as the pressing block. The semi-open fixing plate 531 will rotate 90 degrees in the same direction as the welding gun 57 while the welding gun 57 is rotating forward, so that when the pointed extension plate 534 presses the pole 11, it will not affect the welding process of the welding gun 57. The third telescopic cylinder 533 can control the semi-open fixing plate 531 to move upward or downward, so as to loosen the pole 11 or press the pole 11.

[0027] Please continue reading Figure 5 As shown, in one embodiment of the utility model, a second positioning column 13 is fixed to the rear side of the upper end of the bearing seat 40, and a second pin hole 14 is formed on the second positioning column 13, which is opposite to the first positioning pin 39. The second pin hole 14 and the first positioning pin 39 can be used to position the pole 11 when it is placed on the pole placement platform 45.

[0028] The utility model has the following working principle: the pneumatic suction cups on both sides of the middle of the pole transfer assembly and the pneumatic suction cups on both sides of the rear cooperate with each other to realize the positioning and loading of the pole, and the loaded battery cover is transferred to the bottom of the first welding assembly and the second welding assembly through the turntable, and the battery cover is pressed by a pressing plate, and the welding of the pole on the battery cover is realized by the cooperation of the semi-open fixing plate 531 and the rotation direction of the welding gun.

[0029] The above description is only a preferred embodiment of the present utility model and cannot be understood as a limitation of the present application. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the present utility model.

Claims

1. A cover plate pole welding structure, characterized in that: It includes a turntable, a fixed plate, a pole transfer assembly, a pole positioning assembly, a first welding assembly for welding the pole on the left side of the battery cover plate, and a second welding assembly for welding the pole on the right side of the battery cover plate, the fixed plate is located above the fixed plate, a plurality of battery cover plate placement platforms are arranged in a ring on the turntable, and limit blocks for limiting the position of the battery cover plate are arranged around the battery cover plate placement platforms, first positioning columns are arranged on both sides of the battery cover plate placement platforms, and a first pin hole is opened on the first positioning column, the pole transfer assembly is fixed on the fixed plate, the pole positioning assembly is fixed on the side of the fixed plate and opposite to the position of the pole transfer assembly, and the first welding assembly is located on the side of the second welding assembly.

2. A cover plate pole welding structure according to claim 1, characterized in that: The pole transfer assembly includes a first slide cylinder, a track plate, and a second slide cylinder. The first slide cylinder is fixed on the fixed plate, the track plate is fixed to the output end of the first slide cylinder, the second slide cylinder is fixed to the rear side of the first slide cylinder, the first fixed plate is fixed to the output end of the second slide cylinder, the first fixed plate is connected to the first L-shaped fixed plate through a first sliding member, the upper end of the first L-shaped fixed plate is fixed with a slider that can slide in the track plate, the front and rear ends of the first L-shaped fixed plate are both fixed with two L-shaped support plates, the support plate is fixed with an extension plate, the extension plate is fixed with a pneumatic suction cup, the rear end of the first L-shaped fixed plate is fixed with a long strip plate, and the lower surface of the long strip plate is provided with a first positioning pin opposite to the first pin hole.

3. A cover plate pole welding structure according to claim 2, characterized in that: The sliding member includes a first sliding groove and a sliding rail, the sliding rail is fixed on the back of the first L-shaped fixing plate, the first sliding groove is fixed on the first fixing plate, and the first sliding groove slides on the sliding rail.

4. A cover plate pole welding structure according to claim 2, characterized in that: The pole positioning assembly comprises a bearing seat, a left limit block and a right limit block, the left limit block is located on the left side of the right limit block, the left limit block and the right limit block are provided with two groups, and are both located on the left and right sides of the upper surface of the bearing seat, the lower surfaces of the left limit block and the right limit block are fixed with a second slide groove, the bearing seat is fixed with a second slide rail that allows the second slide groove to slide, the left limit block and the right limit block are provided with semi-arc openings in opposite positions on the inner side, a pole placement table is fixed in the semi-arc opening, the left limit block and the Reset telescopic rods are fixed to both front and rear ends above the right limit block, one end of the reset telescopic rod is fixed to the left limit block, and the other end is fixed to the right limit block, guide wheels are fixed to the front surfaces of the left limit block and the right limit block, a support plate is arranged below the bearing seat, a top plate capable of propping up the left limit block and the right limit block is fixed above the support plate, the bearing seat is provided with an opening for allowing the top plate to pass through, a first telescopic cylinder is fixed below the support plate, and an output end of the first telescopic cylinder is fixed to the lower surface of the support plate.

5. The cover plate pole welding structure according to claim 1, characterized in that: The first welding assembly and the second welding assembly both include a welding gun fixing plate, a battery cover pressing member for fixing the transferred battery cover, a pole fixing member for fixing the pole to be welded, an X-axis module, a Y-axis module and a Z-axis module, the X-axis module is fixed to the output end of the Y-axis module, the Z-axis module is fixed to the output end of the X-axis module, the welding gun fixing plate is fixed to the output end of the Z-axis module, and a welding gun is fixed on the welding gun fixing plate.

6. A cover plate pole welding structure according to claim 5, characterized in that: The battery cover plate pressing member includes a second L-shaped fixing plate, a second telescopic cylinder, and a third L-shaped fixing plate. The inner surface of the second L-shaped fixing plate is provided with a third slide groove, and the outer surface of the third L-shaped fixing plate is provided with a third slide rail for allowing the third slide groove to slide. The third L-shaped fixing plate is fixed to the fixing plate, and the second telescopic cylinder is fixed to the third L-shaped fixing plate. The output end of the second telescopic cylinder is fixed to the upper end of the second L-shaped fixing plate, and the second fixing plate is fixed to the lower end of the outer surface of the second L-shaped fixing plate. The third fixing plates are fixed at both ends of the second fixing plate, and a second positioning pin corresponding to the position of the pin hole is fixed on the third fixing plate, and a pressing plate for pressing the aluminum sheet is fixed in the middle of the second fixing plate.

7. A cover plate pole welding structure according to claim 5, characterized in that: The pole fixing member includes a semi-open fixing plate, a rotating cylinder, and a third telescopic cylinder. A pointed extension plate is fixed to one end of the semi-open fixing plate close to the pole, a pressing block that can press the pole is fixed to the lower surface of the pointed extension plate, and the rotating cylinder is fixed to the output end of the third telescopic cylinder. The output end of the rotating cylinder is fixed to the semi-open fixing plate and is on the same axis as the pressing block.

8. A cover plate pole welding structure according to claim 4, characterized in that: A second positioning column is fixed to the rear side of the upper end of the bearing seat, and a second pin hole corresponding to the position of the first positioning pin is formed on the second positioning column.

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