A forming die with a multi-station welding fixture

Abstract

The utility model relates to battery box welding technical field, and disclose a kind of forming die with multi-station welding fixture, and several welding forming dies are equipped on welding platform;Welding forming die includes positioning mechanism, left clamping mechanism and right clamping mechanism;After battery box is placed in the positioning groove of positioning mechanism, cover box cover, battery box and box cover are driven to descend to the upper surface flush with U type limit block by vertical servo lead screw linear module action on positioning mechanism, and the clamping block on left clamping mechanism clamps battery box and box cover and positions in U type limit block, and the pressing plate on left clamping mechanism and right clamping mechanism is positioned tightly in the top of battery box from the top of box cover.The forming die is integrated by multi-station and automation, realizes battery box batch efficient welding, and greatly improves production efficiency and reduces cost;Its accurate positioning and reliable clamping mechanism effectively guarantee welding quality and product stability.

Description

Technical Field

[0001] This utility model belongs to the field of battery box welding technology, specifically relating to a forming mold with a multi-station welding fixture. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the battery box, as a core energy storage component of electric vehicles, directly affects the safety and range of the entire vehicle through its manufacturing quality and production efficiency. Welding the battery box to the cover is one of the key processes in battery box production.

[0003] Traditional battery box welding relies heavily on manual assembly and welding methods, which are not only inefficient but also struggle to guarantee the accuracy and consistency of welding positions, leading to inconsistent weld quality. Manual assembly and welding can only process one battery box at a time, failing to meet the demands of large-scale production and hindering mass production. During manual operation, the positioning of the battery box and cover depends on worker experience, making it difficult to guarantee accuracy each time, resulting in welding position deviations that affect the overall sealing and structural strength of the battery box. The lack of an integrated clamping and positioning system prevents the automation of battery box and cover positioning, clamping, and welding, increasing labor costs and intensity, and posing safety hazards during production. Some existing automated welding equipment has complex structures and numerous components, resulting in high equipment costs, difficult maintenance, and a large footprint, which is detrimental to production workshop layout and management.

[0004] In view of this, we propose a forming mold with a multi-station welding fixture to solve the above problems. Utility Model Content

[0005] The present invention aims to solve the technical problems of the prior art, which relies heavily on manual assembly and welding, resulting in low production efficiency, difficulty in achieving large-scale production, and high labor costs; at the same time, the lack of precise positioning and automated collaborative systems leads to unstable welding quality, complex equipment structure, and difficult maintenance, which cannot meet the technical needs of the rapid development of the new energy industry.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A forming mold with a multi-station welding fixture includes a welding platform on which several welding forming molds are arranged at equal intervals.

[0008] The welding forming mold includes a positioning mechanism that works with the battery box for insertion and positioning, a left clamping mechanism that works with the positioning mechanism to clamp the battery box and press and position the cover on the battery box from above.

[0009] After the battery box is placed in the positioning slot of the positioning mechanism, the cover is closed. The vertical servo screw linear module on the positioning mechanism moves the battery box and the cover down to be flush with the upper surface of the U-shaped limit block. The clamping block on the left clamping mechanism clamps and positions the battery box and the cover in the U-shaped limit block. The pressure plates on the left and right clamping mechanisms press the cover tightly onto the top of the battery box from above.

[0010] Preferably, the positioning mechanism includes a U-shaped limiting block, a U-shaped box fixed to the bottom outer side of the U-shaped limiting block and flush with the surface of the U-shaped limiting block and fixed to the top of the welding platform, and a lifting platform fixedly connected to the lifting seat on the vertical servo screw linear module. The lifting platform is provided with a plug-in slot for positioning the battery box. The vertical servo screw linear module is installed on the inner wall of the U-shaped box.

[0011] The vertical servo screw linear module moves the lifting platform up and down, which in turn moves the battery box and its cover on the lifting platform up and down.

[0012] Preferably, the lifting seat is provided with guide grooves on both sides, and the guide grooves cooperate with the guide rails on the side walls of the U-shaped box for sliding guidance.

[0013] Preferably, after the battery box is inserted into the insertion slot on the lifting platform, the outer side of the battery box abuts against the inner side of the U-shaped limiting block.

[0014] Preferably, the left clamping mechanism includes a left support box fixed to the top of the welding platform, a transverse servo screw linear module installed in the left support box, a mobile platform fixedly connected to a movable seat on the transverse servo screw linear module, a lifting cylinder for pushing the pressure plate up or down, a push block fixedly mounted on the lifting cylinder, a guide rail that slides and guides in cooperation with the push block and is fixed to the top of the mobile platform, a mounting base fixed to the top of the mobile platform, and a flat-push cylinder mounted on the mounting base. The piston rod end of the flat-push cylinder is fixedly connected to the push block. The push block and the guide rail are both located on the left side of the clamping block. The clamping block is fixed to the top right side of the mobile platform. The lifting cylinder lifts the pressure plate, and the transverse servo screw linear module moves the clamping block to the right. The clamping block, in cooperation with the U-shaped limiting block, clamps and positions the battery box and the box cover in the positioning hole groove formed by the U-shaped limiting block and the clamping block. The flat-push cylinder moves the push block to the right and moves it above the box cover. The lifting cylinder moves the pressure plate down and presses it to the top of the box cover.

[0015] Preferably, the right clamping mechanism includes a right support box fixed to the top of the welding platform, a lifting cylinder that pushes the pressure plate up or down, a push block that is fixedly mounted on the lifting cylinder, a guide rail that slides and guides in cooperation with the push block and is fixed to the top of the right support box, a mounting seat fixed to the top of the right support box, and a flat push cylinder that is mounted and fixed on the mounting seat. The piston rod end of the flat push cylinder is fixedly connected to the push block.

[0016] The lifting cylinder lifts the pressure plate, and the pushing cylinder moves the push block to the left to the top of the box cover. The lifting cylinder then moves the pressure plate down to press and position it on the top of the box cover.

[0017] Preferably, the pressure plate on the left clamping mechanism cooperates with the pressure plate on the right clamping mechanism to press and position the cover on the top of the battery box, and the pressure plate is provided with several U-shaped slots to provide operating space for the welding robot to weld the battery box and the cover.

[0018] Compared with the prior art, the technical effects and advantages of this utility model are:

[0019] (1) The forming mold with multi-station welding fixtures and the welding platform is equipped with multi-station welding forming molds, which can simultaneously perform welding operations on multiple battery boxes, greatly improving production efficiency and meeting the mass production needs of the new energy vehicle industry for battery boxes; compared with single-station equipment, it reduces the equipment footprint, makes intensive use of production space, and reduces the equipment investment cost and site usage cost per unit product.

[0020] (2) In the positioning mechanism, the U-shaped limit block, U-shaped box, vertical servo screw linear module and lifting platform cooperate with each other. After the battery box is inserted into the insertion slot of the lifting platform, the outer side of the battery box abuts against the inner side of the U-shaped limit block to achieve high-precision positioning. The cooperation between the guide groove and the guide rail ensures that the lifting seat is raised and lowered smoothly, further ensuring the accuracy of the battery box position before and during welding, laying the foundation for high-quality welding.

[0021] (3) The clamping block of the left clamping mechanism cooperates with the U-shaped limiting block to provide a strong and stable clamping force, firmly clamping the battery box and the box cover in the positioning hole groove; the pressure plates of the left and right clamping mechanisms work together to press the box cover from both sides to ensure that the box cover and the battery box fit tightly together, preventing problems such as weld seam displacement and incomplete welding caused by component movement during welding, ensuring the sealing and structural strength of the battery box, and improving product quality and safety.

[0022] (4) The U-shaped slot on the pressure plate provides sufficient operating space for the welding robot, avoids interference of the pressure plate with the movement path of the welding robot, enables the welding robot to perform welding operations on the battery box and the box cover in a flexible and convenient manner, improves welding accessibility, helps to ensure welding quality and welding efficiency, and reduces welding defects.

[0023] (5) The positioning mechanism, the left clamping mechanism and the right clamping mechanism work together to form a complete and automated clamping and positioning system, realizing the full-process automated operation of battery box and box cover from positioning, clamping to welding; reducing manual intervention, reducing labor costs and labor intensity, improving the stability and consistency of the production process, and reducing safety risks caused by manual operation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the welding forming mold of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure on which the battery box and box cover are placed on the positioning mechanism of this utility model;

[0027] Figure 4 This is a schematic diagram of the positioning mechanism of this utility model;

[0028] Figure 5 This is a schematic diagram of the left clamping mechanism of this utility model;

[0029] Figure 6 This is a schematic diagram of the right clamping mechanism of this utility model;

[0030] Figure 7 This is a flowchart illustrating the operation of this utility model.

[0031] In the diagram: 1. Welding platform; 2. Welding forming mold; 3. Battery box; 4. Box cover; 5. Left clamping mechanism; 6. Right clamping mechanism; 7. Positioning mechanism;

[0032] 71. U-shaped limit block; 72. U-shaped box; 73. Vertical servo screw linear module; 74. Lifting seat; 75. Lifting platform; 76. Insertion slot; 77. Guide slot; 78. Guide rail;

[0033] 51. Left support box; 52. Lateral servo lead screw linear module; 53. Moving seat; 54. Moving platform; 55. Clamping block; 56. Pressure plate; 57. Lifting cylinder; 58. Pushing block; 59. Guide rail; 510. Mounting seat; 511. Horizontal push cylinder; 512. U-shaped groove;

[0034] 61. Right support box. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] The following combination Figures 1 to 7 This application will be described in further detail.

[0037] This application discloses a forming mold with a multi-station welding fixture, including a welding platform 1, on which a plurality of welding forming molds 2 are arranged at equal intervals;

[0038] The welding platform 1 is equipped with several welding forming molds 2, which can simultaneously perform welding forming operations on multiple battery boxes 3, thereby improving production efficiency, facilitating mass production, reducing equipment footprint, and lowering production costs.

[0039] The welding forming mold 2 includes a positioning mechanism 7 that works with the battery box 3 for insertion and positioning, a left clamping mechanism 5 that works with the positioning mechanism 7 to clamp the battery box 3 and press and position the cover 4 on the battery box 3 from above.

[0040] The positioning mechanism 7 includes a U-shaped limiting block 71, a U-shaped box 72 fixed to the bottom outer side of the U-shaped limiting block 71 and flush with the surface of the U-shaped limiting block 71 and fixed to the top of the welding platform 1, a vertical servo screw linear module 73 installed on the inner wall of the U-shaped box 72, and a lifting platform 75 fixedly connected to the lifting seat 74 on the vertical servo screw linear module 73. The lifting platform 75 is provided with a plug-in slot 76 for positioning and plugging into the battery box 3.

[0041] The vertical servo screw linear module 73 moves the lifting seat 74 up and down, thereby causing the battery box 3 and the cover 4 on the lifting seat 74 to move up and down.

[0042] The lifting platform 74 has guide grooves 77 on both sides, which cooperate with guide rails 78 on both sides of the U-shaped box 72 for sliding guidance. After the battery box 3 is inserted into the insertion slot 76 on the lifting platform 75, the outer side of the battery box 3 abuts against the inner side of the U-shaped limiting block 71.

[0043] The positioning mechanism 7, through the cooperation of components such as the U-shaped limit block, U-shaped box, vertical servo screw linear module 73 and lifting platform 75, allows the battery box 3 to be inserted into the insertion slot 76 of the lifting platform 75, with its outer side abutting against the inner side of the U-shaped limit block to achieve precise positioning, ensuring that the battery box 3 is accurately positioned during the welding process and guaranteeing the welding quality.

[0044] The vertical servo lead screw linear module 73 drives the lifting seat 74 to move up and down, thereby raising and lowering the battery box 3 and the cover 4. The height of the battery box 3 can be flexibly adjusted according to different welding process requirements or the operator's working height needs, improving the applicability and ease of operation of the mold. The guide grooves 77 on both sides of the lifting seat 74 cooperate with the guide rails 78 on the side walls of the U-shaped box for sliding guidance, making the lifting movement of the lifting seat 74 more stable and avoiding shaking or deviation during the lifting process, further ensuring the accuracy and stability of the battery box 3 positioning.

[0045] The left clamping mechanism 5 includes a left support box 51 fixed to the top of the welding platform 1, a transverse servo screw linear module 52 installed in the left support box 51, a moving platform 54 fixedly connected to the moving seat 53 on the transverse servo screw linear module 52, a clamping block 55 fixed to the top right side of the moving platform 54, a lifting cylinder 57 that pushes the pressure plate 56 to lift or lower, a push block 58 fixedly mounted on the lifting cylinder 57, a guide rail 59 that slides and guides the push block 58 and is fixed to the top of the moving platform 54, a mounting seat 510 fixed to the top of the moving platform 54, and a flat push cylinder 511 mounted and fixed on the mounting seat 510. The piston rod end of the flat push cylinder 511 is fixedly connected to the push block 58. The push block 58 and the guide rail 59 are both located to the left of the clamping block 55.

[0046] The lifting cylinder 57 lifts the pressure plate 56, and the horizontal servo screw linear module 52 moves the clamping block 55 to the right. The clamping block 55, together with the U-shaped limit block 71, clamps and positions the battery box 3 and the box cover 4 in the positioning hole groove formed by the U-shaped limit block 71 and the clamping block 55. The horizontal pushing cylinder 511 moves the pushing block 58 to the right and moves it above the box cover 4. The lifting cylinder 57 moves the pressure plate 56 down and presses it to the top of the box cover 4.

[0047] The horizontal servo lead screw linear module 52 on the left clamping mechanism 5 drives the moving platform 54 and clamping block 55 to move to the right. In cooperation with the U-shaped limit block, it clamps and positions the battery box 3 and the box cover 4 in the positioning hole groove, which can provide sufficient clamping force to ensure that the battery box 3 and the box cover 4 will not be displaced during the welding process, thus ensuring welding accuracy.

[0048] The lifting cylinder 57 can lift or lower the pressure plate 56, and the pushing cylinder 511 drives the pushing block 58 to move, so that the pressure plate 56 can be accurately moved above the box cover 4 and pressed and positioned on the top of the box cover 4, realizing flexible pressing operation of the box cover 4. The left support box 51 integrates components such as the horizontal servo lead screw linear module 52, the moving seat 53, and the moving platform 54. The structure is compact and the layout is reasonable, which reduces the space occupied and facilitates installation, debugging and maintenance.

[0049] The right clamping mechanism 6 includes a right support box 61 fixed to the top of the welding platform 1, a lifting cylinder 57 that pushes the pressure plate 56 to lift or lower, a push block 58 fixedly mounted on the lifting cylinder 57, a guide rail 59 that slides and guides in cooperation with the push block 58 and is fixed to the top of the right support box 61, a mounting base 510 fixed to the top of the right support box 61, and a flat push cylinder 511 mounted and fixed on the mounting base 510. The piston rod end of the flat push cylinder 511 is fixedly connected to the push block 58.

[0050] The lifting cylinder 57 lifts the pressure plate 56, and the pushing cylinder 511 moves the pushing block 58 to the left and above the box cover 4. The lifting cylinder 57 then moves the pressure plate 56 down to press and position it on the top of the box cover 4.

[0051] The lifting cylinder 57, pushing block 58, guide rail 59, and flat pushing cylinder 511 of the right clamping mechanism 6 work together with the pressure plate 56 on the left clamping mechanism 5 to press and position the cover 4 on top of the battery box 3 from both sides. This ensures the stability and sealing of the cover 4 during the welding process and prevents deformation or displacement of the cover 4 during welding. The structure of the right clamping mechanism 6 is relatively simple, mainly consisting of the right support box 61 and related components installed on its top. This reduces the number of parts, lowers manufacturing and maintenance costs, and also improves the reliability and stability of the mechanism.

[0052] The pressure plate 56 on the left clamping mechanism 5 cooperates with the pressure plate 56 on the right clamping mechanism 6 to press and position the cover 4 on the top of the battery box 3. The pressure plate 56 has several U-shaped slots 512 that provide operating space for the welding robot to weld the battery box 3 and the cover 4. This avoids interference between the pressure plate 56 and the welding robot, improves the accessibility and flexibility of welding, and helps to ensure welding quality and efficiency.

[0053] After the battery box 3 is placed in the positioning groove of the positioning mechanism 7, the box cover 4 is closed. The vertical servo lead screw linear module 73 on the positioning mechanism 7 moves the battery box 3 and the box cover 4 down to be flush with the upper surface of the U-shaped limit block 71. The clamping block 55 on the left clamping mechanism 5 clamps and positions the battery box 3 and the box cover 4 in the U-shaped limit block 71. The pressure plate 56 on the left clamping mechanism 5 and the right clamping mechanism 6 presses the box cover 4 tightly onto the top of the battery box 3 from above.

[0054] The positioning mechanism 7, the left clamping mechanism 5, and the right clamping mechanism 6 work together. First, the positioning mechanism 7 accurately positions and adjusts the height of the battery box 3. Then, the left clamping mechanism 5 clamps and positions the battery box 3 and the cover 4 within the U-shaped limiting block. Finally, the pressure plates 56 on the left and right clamping mechanisms 6 press and position the cover 4 tightly on the top of the battery box 3, forming a complete clamping and positioning system. This system ensures the positional accuracy and stability of the battery box 3 and the cover 4 during the welding process, guarantees welding quality, and improves production efficiency.

[0055] like Figure 7 As shown, 7(A), 7(B), 7(C), and 7(D) are respectively the loading state diagram of battery box 3 and box cover 4, the state diagram of battery box 3 and box cover 4 moving down to be flush with the U-shaped limiting block, the state diagram of clamping block 55 moving to the right and cooperating with the U-shaped limiting block to clamp and position battery box 3 and box cover 4, and the state diagram of pressure plate 56 on left clamping mechanism 5 and right clamping mechanism 6 pressing and positioning box cover 4;

[0056] Loading stage: The battery box 3 is placed in the insertion slot 76 of the lifting platform 75 of the positioning mechanism 7. At this time, the outer side of the battery box 3 abuts against the inner side of the U-shaped limiting block, completing the initial positioning; then the box cover 4 is placed on the battery box 3 to form a shape as shown in the figure. Figure 7 (A) shows the material feeding status.

[0057] Height adjustment stage: The vertical servo lead screw linear module 73 on the positioning mechanism 7 is activated, driving the lifting seat 74 to move downwards, thereby causing the battery box 3 and the cover 4 on the lifting seat 74 to move downwards synchronously until the upper surfaces of the battery box 3 and the cover 4 are flush with the upper surface of the U-shaped limit block. Figure 7 (B) state.

[0058] Clamping and positioning stage: The horizontal servo lead screw linear module 52 in the left clamping mechanism 5 moves, driving the moving platform 54 and clamping block 55 to move to the right. The clamping block 55, in conjunction with the U-shaped limiting block, clamps and positions the battery box 3 and the box cover 4 within the positioning hole groove formed by the U-shaped limiting block and the clamping block 55, completing the horizontal clamping of the battery box 3 and the box cover 4, presenting... Figure 7 (C) state.

[0059] During the pressing stage of the pressure plate 56: The horizontal push cylinder 511 in the left clamping mechanism 5 moves the push block 58 to the right, above the cover 4; simultaneously, the horizontal push cylinder 511 in the right clamping mechanism 6 moves the push block 58 to the left, above the cover 4. Subsequently, the lifting cylinders 57 of the left and right clamping mechanisms 6 move the pressure plate 56 downwards, firmly pressing and positioning the cover 4 onto the top of the battery box 3 from both sides, achieving... Figure 7 (D) state.

[0060] Welding stage: The welding robot performs preliminary welding operations on the battery box 3 and the box cover 4 through the space reserved in the U-shaped slot on the pressure plate 56. Then, the lifting cylinder 57 of the left and right clamping mechanisms 6 lifts the pressure plate 56, and the horizontal servo screw linear module 52 drives the clamping block 55 to move to the left and reset. The right pressure plate 56 also moves away from the battery box 3 and the box cover 4, and performs precise welding on the battery box 3 and the box cover 4.

[0061] Unloading stage: After welding is completed, the operator removes the welded battery box 3 and box cover 4 and enters the next production cycle.

[0062] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A forming mold with a multi-station welding fixture, characterized in that, It includes a welding platform (1), on which several welding forming molds (2) are arranged at equal intervals; The welding forming mold (2) includes a positioning mechanism (7) that is used to insert and position the battery box (3), a left clamping mechanism (5) that is used to clamp the battery box (3) and press and position the cover (4) on the battery box (3) from above the battery box (3). After the battery box (3) is placed in the positioning groove of the positioning mechanism (7), the box cover (4) is closed. The vertical servo screw linear module (73) on the positioning mechanism (7) drives the battery box (3) and the box cover (4) to move down to be flush with the upper surface of the U-shaped limit block (71). The clamping block (55) on the left clamping mechanism (5) clamps and positions the battery box (3) and the box cover (4) in the U-shaped limit block (71). The pressure plate (56) on the left clamping mechanism (5) and the right clamping mechanism (6) presses and positions the box cover (4) tightly on the top of the battery box (3) from above. The positioning mechanism (7) includes a U-shaped box (72) fixed to the bottom outer side of the U-shaped limit block (71) and flush with the surface of the U-shaped limit block (71) and fixed to the top of the welding platform (1), and a lifting platform (75) fixedly connected to the lifting seat (74) on the vertical servo screw linear module (73). The lifting platform (75) is provided with a plug-in slot (76) for positioning the battery box (3). The vertical servo screw linear module (73) is installed on the inner wall of the U-shaped box (72). The vertical servo screw linear module (73) moves the lifting seat (74) up and down, thereby driving the battery box (3) and the box cover (4) on the lifting seat (74) to move up and down. The left clamping mechanism (5) includes a left support box (51) fixed on the top of the welding platform (1), a horizontal servo screw linear module (52) installed in the left support box (51), a mobile platform (54) fixedly connected to the moving seat (53) on the horizontal servo screw linear module (52), a lifting cylinder (57) that pushes the pressure plate (56) to rise or fall, a push block (58) fixedly installed on the lifting cylinder (57), a guide rail (59) that slides and guides the push block (58) and is fixed on the top of the mobile platform (54), a mounting seat (510) fixed on the top of the mobile platform (54), and a flat push cylinder (511) fixed on the mounting seat (510). The piston rod end of the flat push cylinder (511) is fixedly connected to the push block (58). The push block (58) and the guide rail (59) are both located on the left side of the clamping block (55). The clamping block (55) is fixed on the top right side of the mobile platform (54). The lifting cylinder (57) lifts the pressure plate (56), and the horizontal servo screw linear module (52) moves the clamping block (55) to the right. The clamping block (55) and the U-shaped limit block (71) clamp and position the battery box (3) and the box cover (4) in the positioning hole groove formed by the U-shaped limit block (71) and the clamping block (55). The pushing cylinder (511) moves the pushing block (58) to the right and moves it above the box cover (4). The lifting cylinder (57) moves the pressure plate (56) down and presses it to the top of the box cover (4). The right clamping mechanism (6) includes a right support box (61) fixed on the top of the welding platform (1), a lifting cylinder (57) that pushes the pressure plate (56) to rise or fall, a push block (58) fixedly mounted on the lifting cylinder (57), a guide rail (59) that slides and guides the push block (58) and is fixed on the top of the right support box (61), a mounting seat (510) fixed on the top of the right support box (61), and a flat push cylinder (511) fixed on the mounting seat (510). The piston rod end of the flat push cylinder (511) is fixedly connected to the push block (58). The lifting cylinder (57) lifts the pressure plate (56), and the horizontal pushing cylinder (511) moves the pushing block (58) to the left to the top of the box cover (4). The lifting cylinder (57) moves the pressure plate (56) down to press and position it on the top of the box cover (4). The pressure plate (56) on the left clamping mechanism (5) and the pressure plate (56) on the right clamping mechanism (6) work together to press and position the cover (4) on the top of the battery box (3). The pressure plate (56) is provided with several U-shaped slots (512) to provide operating space for the welding robot to weld the battery box (3) and the cover (4).

2. A forming mold with a multi-station welding fixture according to claim 1, characterized in that: The lifting seat (74) is provided with guide grooves (77) on both sides, and the guide grooves (77) cooperate with the guide rails (78) on both sides of the U-shaped box (72) for sliding guidance.

3. A forming mold with a multi-station welding fixture according to claim 1, characterized in that: After the battery box (3) is inserted into the insertion slot (76) on the lifting platform (75), the outer side of the battery box (3) abuts against the inner side of the U-shaped limiting block (71).

Images