Battery top cover assembling device

Abstract

According to the battery top cover assembling device, a conveying table is provided with a conveying area, baffles are installed on the two opposite sides of the conveying area in the width direction respectively, so that a conveying channel is formed between the two baffles, a plurality of idler wheels arranged at intervals are installed on the inner sides of the baffles, and a conveying gap is formed between the lower side of each idler wheel and the conveying area. A first telescopic mechanism and a second telescopic mechanism are installed at the two ends of the length direction of the assembling position of the conveying area correspondingly. The positioning tool comprises a workpiece positioning structure and a cover plate, the top of the workpiece positioning structure is provided with a positioning area for positioning and placing the battery top cover, the cover plate covers the top of the workpiece positioning structure, and at least one first positioning hole corresponding to at least partial position of the positioning area is formed in the cover plate; the assembling structure is matched with the positioning tool; according to the positioning tool, the battery top cover which is not riveted can be placed under the condition that the positioning tool is not located below an assembly structure, so that the battery top cover is safe when needing to be manually placed.

Description

Technical Field

[0001] This utility model relates to the technical field of forming a battery top cover, and in particular to a battery top cover assembly device. Background Technology

[0002] The battery top cover is an important component in new energy batteries. It is mainly welded and fixed to the battery aluminum shell to form the battery casing. In the current technology, the connection between the top cover and the terminal post is generally achieved by riveting. The riveting and fixing of the top cover and the terminal post generally uses a stamping machine and a stamping die. The stamping die is installed on the stamping machine. During the riveting process, the unriveted battery top cover is placed in the positioning groove of the lower die of the stamping die. Then, the upper die of the stamping die is used to stamp the terminal post on the unriveted battery top cover, thereby riveting and forming the battery top cover. However, the current method of loading the unriveted battery top cover into the positioning groove of the lower die of the stamping die generally uses manual labor or industrial robots. However, manual operation poses safety hazards, and the use of industrial robots results in high costs. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to design a battery top cover assembly device to overcome the shortcomings of the above-mentioned technology.

[0004] The battery top cover assembly device designed in this utility model includes:

[0005] A conveying table is provided with a conveying area. Baffles are installed on opposite sides of the conveying area in the width direction to form a conveying channel between the two baffles. Multiple spaced rollers are installed on the inner side of the baffles. A conveying gap is formed between the lower side of each roller and the conveying area. A first telescopic mechanism and a second telescopic mechanism are installed at both ends of the assembly position in the length direction of the conveying area.

[0006] A positioning fixture, comprising a workpiece positioning structure and a cover plate, wherein the top of the workpiece positioning structure is provided with a positioning area for positioning and placing a battery top cover, the cover plate covers the top of the workpiece positioning structure, and the cover plate is provided with at least one first positioning hole corresponding to at least a portion of the positioning area.

[0007] An assembly structure that cooperates with the positioning fixture to fix the terminal post and the top cover piece in the battery top cover on the workpiece positioning structure to each other.

[0008] When the positioning fixture enters the assembly position of the conveying area through one port of the conveying channel, the upper ends of the first telescopic mechanism and the second telescopic mechanism extend out of the assembly position surface of the conveying area and contact the two ends of the positioning fixture respectively. At the same time, the workpiece positioning structure is respectively limited in the corresponding conveying gap on both sides in the width direction, and at least some of the roller surfaces are close to the upper surfaces of the two sides of the workpiece positioning structure in the width direction.

[0009] According to the battery top cover assembly device described above, the first telescopic mechanism includes a telescopic member, an elastic member, and a first fixing block. The assembly position of the conveying area is provided with a first mounting groove. The telescopic member is placed in a vertical through groove on the side of the first fixing block facing the positioning fixture. The side of the first fixing block facing the positioning fixture is fixed to an inner wall of the first mounting groove facing the positioning fixture. The upper end of the telescopic member extends in the opposite direction to the positioning fixture to form a first guide block. The upper side of the first guide block has an inclined surface so that the upper side of the first guide block is in a high position near the positioning fixture and in a low position away from the positioning fixture. The elastic member is disposed between the lower side of the guide block and the upper side of the first fixing block. The lower end of the telescopic member extends in the opposite direction to the positioning fixture to form a limiting block. In the spring-extended state, the limiting block abuts against the lower side of the first fixing block, and the upper side of the first guide block extends out of the assembly position surface of the conveying area at the end near the positioning fixture.

[0010] According to the battery top cover assembly device described above, the upper side of the first fixing block is provided with two spaced-apart blocks, and the first guide block is located between the two blocks.

[0011] According to the battery top cover assembly device described above, the second telescopic mechanism includes at least one telescopic cylinder, the cylinder body of which is fixed in a second mounting groove below the assembly position of the conveying area; when the telescopic rod of the telescopic cylinder is extended, its telescopic rod extends out of the assembly position surface of the conveying area, and when the telescopic rod of the telescopic cylinder is retracted, its telescopic rod end face is flush with or below the assembly position surface of the conveying area.

[0012] According to the battery top cover assembly device described above, the workpiece positioning structure includes a base plate, a middle block, first side blocks located on both sides of the length direction of the middle block, second side blocks located on both sides of the width direction of the middle block, and abutment blocks abutting against the outer side of each first side block. The middle block, first side blocks, second side blocks, and abutment blocks abutting against the outer side of each first side block are all fixed on the base plate. The upper side of the middle block, the inner side of each first side block, and the inner side of each second side block form a workpiece positioning space. The upper side of the middle block is provided with at least one positioning boss corresponding to the position of the positioning hole. The cover plate is located above the workpiece positioning space, and its two ends are respectively placed on the upper side of each abutment block. The upper side of each abutment block is fixed with a positioning post. The two ends of the cover plate are provided with second positioning holes, and each positioning post is inserted into the corresponding second positioning hole.

[0013] According to the battery top cover assembly device described above, the assembly structure includes a first template group, a second template group, a T-shaped column, a T-shaped punch, a push rod, and a center adjustment group, wherein the first template group, the second template group, and the center adjustment group are arranged sequentially from top to bottom.

[0014] The second template group is provided with at least one T-shaped mounting hole corresponding to the position of the first positioning hole. The head of the T-shaped column is fitted into the T-shaped mounting hole. The column body of the T-shaped column extends to the center adjustment group. A first spring abuts between the bottom surface of the first template group and the top surface of the head of the T-shaped column. A second spring abuts between the bottom surface of the horizontal part of the T-shaped column and the bottom of the horizontal hole of the T-shaped mounting hole. A T-shaped through hole is provided at the center of the T-shaped column. A T-shaped punch fits into the T-shaped through hole. One end of the push rod is embedded in the first template group, and the other end is inserted into the horizontal part of the T-shaped through hole and abuts against the top of the T-shaped punch. A riveting protrusion is formed on the bottom end face of the T-shaped punch.

[0015] The central adjustment group includes an adjustment plate located above the cover plate. The adjustment plate is provided with at least one cross-shaped adjustment hole corresponding to the position of the positioning hole, and side push holes provided at the ends of each branch hole of the cross-shaped adjustment hole. Each side push hole is connected to each branch hole of the cross-shaped adjustment hole. Each branch hole of the cross-shaped adjustment hole is provided with an adjustment block. The outer side of each adjustment block is provided with a first inclined surface. A second guide block corresponding to the position of each side push hole is fixed on the second template group. The second guide block is provided with a second inclined surface adapted to the first inclined surface. The inner side of each adjustment block extends downward to form an adjustment protrusion. The inner sides of each adjustment block are spaced apart from each other.

[0016] According to the battery top cover assembly device described above, a guide post and a first limiting post are fixed on the conveying platform. The first template group is provided with a second limiting post corresponding to the position of the first limiting post and a guide hole through which the guide post passes. A reset spring is sleeved on the guide post, and the two ends of the reset spring abut against the first template group and the conveying platform, respectively.

[0017] According to the battery top cover assembly device described above, a concave groove is formed in the area of ​​the cross-shaped adjustment hole on the adjustment plate. A second fixing block is respectively provided above the branch holes on both sides of the cross-shaped adjustment hole. The second fixing block is fixed to the bottom of the concave groove, and each second fixing block is provided with a clearance groove for the side push block to pass through. The top of the clearance groove slides in contact with the top surface of the adjustment block at the corresponding position. A guide spring is provided between the side wings of each adjustment block and the side of the corresponding second fixing block. The two ends of the guide spring are respectively embedded in the insertion holes on the side wings of the adjustment block and the insertion holes on the side of the second fixing block. A limiting block is respectively provided above the other two branch holes on both sides of the cross-shaped adjustment hole. Each limiting block is fixed to the top surface of the adjustment block and slides in contact with the top surface of the adjustment block at the corresponding position. A through hole is provided on the limiting block for the corresponding guide block to pass through.

[0018] According to the battery top cover assembly device described above, the first template group includes a first plate and a second plate fixed to each other from top to bottom, and the second template group includes a third plate and a fourth plate fixed to each other from top to bottom.

[0019] The first plate has a first through hole at a position corresponding to the two sides opposite to the width of the conveyor platform. A sealing block is fixed at the upper end of each first through hole. A third spring is installed in each first through hole. The second plate has a first T-shaped through hole, a second through hole, a third through hole and a fourth through hole corresponding to the position of the T-shaped mounting hole, and a second T-shaped through hole corresponding to the position of the first through hole at a position corresponding to the two sides opposite to the width of the conveyor platform. A first T-shaped rod and a fourth spring are installed in the first T-shaped through hole. The two ends of the fourth spring abut against the top surface of the first T-shaped rod and the bottom surface of the first plate, respectively. The lower end of the first T-shaped rod is fixed to the third plate. A fifth spring is installed in the second through hole. The third plate has a fifth through hole corresponding to the position of the second through hole. A second T-shaped rod is installed in the fifth through hole. The longitudinal part of the second T-shaped rod passes through the fourth plate and is fixed to the adjustment plate. The two ends of the fifth spring abut against the top surface of the second T-shaped rod and the bottom surface of the first plate, respectively.

[0020] A T-shaped guide post is inserted through the second T-shaped perforation. The two ends of the third spring abut against the top of the T-shaped guide post and the sealing block, respectively. The longitudinal part of the T-shaped guide post passes through the third plate, the fourth plate, the adjusting plate and the bottom plate in sequence. Positioning holes corresponding to the longitudinal part of the T-shaped guide post are provided on both sides of the conveying table in the width direction. The upper part of the push rod is placed in the third through hole, and the first spring is placed in the fourth through hole.

[0021] A limiting rod is fixed on the base plate and the adjusting plate, and the end face of the limiting rod on the base plate is higher than the top surface of the cover plate that is fitted onto the workpiece positioning structure.

[0022] According to the battery top cover assembly device described above, an elongated groove is provided on the conveying area near the inner side of each baffle, along the conveying direction of the conveying table. Multiple conveying wheels arranged in a straight line are installed in each elongated groove, and the wheel surface of the conveying wheel is in contact with the bottom surface of the base plate.

[0023] The battery top cover assembly device described in this utility model has the following advantages:

[0024] The device of this invention positions an unriveted battery top cover within a positioning area. The cover plate covers the top of the workpiece positioning structure. The uncentered terminals on the battery top cover are located below or within the positioning holes. Then, the positioning fixture is pushed below the assembly structure. The upper ends of the first and second telescopic mechanisms are extended and contact the two ends of the positioning fixture, respectively. At this time, the assembly structure, under the action of the stamping drive mechanism, punches downwards towards the positioning fixture. During this downward punching process, the adjusting protrusions on each adjusting block pass through the positioning holes and make horizontal displacement, thereby laterally pushing the unriveted battery top cover... The center of the terminal post is aligned with the center of the T-shaped punch around the periphery of the terminal post. The lower end of the T-shaped punch then presses against the terminal post on the unriveted battery top cover. Finally, the T-shaped punch punches out and rivets the top of the terminal post, causing it to deform and fix the terminal post and the rivet block to each other, thus fixing the terminal post and the top cover to each other. Therefore, this utility model enables the positioning fixture to place the unriveted battery top cover without being below the assembly structure, making it safer when manual placement is required. Alternatively, multiple positioning fixtures can be configured, and an automatic feeder can be used for feeding to achieve continuous step-by-step automatic conveying of the positioning fixture to the area below the riveting structure. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of the overall assembly device (I);

[0026] Figure 2 This is a structural schematic diagram of the overall assembly device (II);

[0027] Figure 3This is a structural schematic diagram of the overall sectional view (I);

[0028] Figure 4 This is a schematic diagram of the assembly structure and the positioning tooling working together;

[0029] Figure 5 This is a structural schematic diagram of the overall sectional view (II);

[0030] Figure 6 This is a structural schematic diagram of the overall sectional view (III);

[0031] Figure 7 This is a structural schematic diagram of the overall sectional view (IV);

[0032] Figure 8 This is a schematic diagram of the structure where the adjusting block is installed inside the cross-shaped adjusting hole;

[0033] Figure 9 This is a structural diagram of the adjustment plate and adjustment block.

[0034] Figure 10 This is a schematic diagram of the combination of positioning fixture and conveyor table (I);

[0035] Figure 11 This is a structural diagram of the assembly structure;

[0036] Figure 12 This is a schematic diagram of the structure combining the positioning fixture and the conveyor table (II).

[0037] Reference numerals: 1. Conveyor table; 2. Baffle; 3. Roller; 4. Positioning fixture; 5. Assembly structure; 6. First telescopic mechanism; 7. Second telescopic mechanism; 8. Center adjustment group; 9. Inclined surface; 10. Guide column; 11. Conveying area; 12. Return spring; 13. Conveying channel; 14. Long groove; 15. Conveying wheel; 16. First mounting groove; 17. Second mounting groove;

[0038] 41. Base plate; 42. Intermediate block; 43. Positioning boss; 44. First side stop; 45. Roller; 46. Support block; 47. Positioning post; 48. Cover plate; 481. First positioning hole; 482. Second positioning hole; 49. Second side stop;

[0039] 51. First template group; 52. Second template group; 53. T-shaped column; 54. T-shaped mounting hole; 55. First limiting post; 56. Second limiting post; 57. Top rod; 58. T-shaped punch; 581. Riveting protrusion; 511. First plate; 512. Second plate; 513. Third plate; 514. Fourth plate; 515. Third through hole; 516. Sealing block; 517. First through hole; 518. Third spring; 519. Fourth 520. Through hole; 521. First spring; 522. Second spring; 523. T-shaped guide post; 524. First T-shaped through hole; 525. Fourth spring; 526. First T-shaped rod; 527. Second through hole; 528. Fifth through hole; 529. Guide hole; 530. Second T-shaped through hole; 531. T-shaped through hole; 532. Second T-shaped rod; 541. Sixth through hole; 542. Third T-shaped through hole;

[0040] 61. First fixing block; 62. Telescopic component; 621. First guide block; 622. Limiting block; 611. Vertical hole; 612. Vertical through groove;

[0041] 71. Telescopic cylinder; 81. Adjusting plate; 82. Adjusting block; 821. Adjusting protrusion; 83. Second guide block; 84. Limiting block; 87. Second fixing block; 88. Guide spring; 811. Cross-shaped adjusting hole; 812. Side push hole;

[0042] 100. Battery top cover; 101. Top cover plate; 102. Terminal post; 103. Riveting block; Detailed Implementation

[0043] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0044] Figures 1-12 As shown, the battery top cover 100 assembly device described in this embodiment includes a conveying table 1, a positioning fixture 4, and an assembly structure 5. The conveying table 1, the positioning fixture 4, and the assembly structure 5 are arranged in cooperation with each other to complete the riveting and forming of the battery top cover 100.

[0045] In this embodiment, a conveying area 11 is provided on the conveying table 1. Baffles 2 are respectively installed on opposite sides of the conveying area 11 in the width direction so that a conveying channel 13 is formed between the two baffles 2. Multiple rollers 3 are installed on the inner side of the baffles 2 at intervals. A conveying gap is formed between the lower side of each roller 3 and the conveying area 11. A first telescopic mechanism 6 and a second telescopic mechanism 7 are respectively installed at both ends of the assembly position length direction of the conveying area 11.

[0046] Preferably, the first telescopic mechanism 6 includes a telescopic member 62, an elastic member, and a first fixing block 61. The assembly position of the conveying area 11 is provided with a first mounting groove 16. The telescopic member 62 is placed in a vertical through groove 612 on the side of the first fixing block 61 facing the positioning fixture 4, and the side of the first fixing block 61 facing the positioning fixture 4 is fixed to an inner wall of the first mounting groove 16 facing the positioning fixture 4. The upper end of the telescopic member 62 extends in the opposite direction to the positioning fixture 4 to form a first guide block 621. The upper side of the first guide block 621 has an inclined surface 9 to allow the first guide block 621 to... The upper side is positioned high at the end near the positioning fixture 4 and low at the end away from the positioning fixture 4. The elastic element is disposed between the lower side of the first guide block 621 and the upper side of the first fixing block 61. The lower end of the telescopic element 62 extends in the opposite direction to the positioning fixture 4 to form a limiting block 622. In the spring-extended state, the limiting block 622 abuts against the lower side of the first fixing block 61. The upper side of the first guide block 621 extends out of the assembly surface of the conveying area 11 at the end near the positioning fixture 4. The elastic element is generally a spring structure and is embedded in the vertical hole 611 of the first fixing block 61.

[0047] In a further preferred embodiment, the upper side of the first fixing block 61 is provided with two spaced-apart blocks, and the first guide block 621 is located between the two blocks.

[0048] Preferably, the second telescopic mechanism 7 includes at least one telescopic cylinder 71, the cylinder body of which is fixed in the second mounting groove 17 below the assembly position of the conveying area 11; when the telescopic rod of the telescopic cylinder 71 is extended, its telescopic rod extends to the assembly position surface of the conveying area 11, and when the telescopic rod of the telescopic cylinder 71 is retracted, its telescopic rod end face is flush with or below the assembly position surface of the conveying area 11.

[0049] Therefore, when the positioning fixture 4 enters the interior of the conveying channel 13 through one end, it first presses down on the telescopic member 62 under the gravity of the positioning fixture 4, causing the elastic member to be compressed. Then, as the positioning fixture 4 continues to move along the conveying channel 13 toward the second telescopic mechanism 7, it passes over the telescopic member 62. At this time, the telescopic rod of the telescopic cylinder 71 extends to block one end of the positioning fixture 4. At this time, the positioning fixture 4 leaves the telescopic member 62 and enters between the guide block and the telescopic rod of the telescopic cylinder 71. The inner side of the guide block and the upper end of the telescopic rod of the telescopic cylinder 71 are respectively limited at both ends of the positioning fixture 4. At the same time, the baffles 2 on both sides limit the opposite sides of the positioning fixture 4. The workpiece positioning structure is limited in the corresponding conveying gap on both sides in the width direction, and at least some of the rollers 3 have wheel surfaces close to the upper surfaces of the workpiece positioning structure on both sides in the width direction.

[0050] In this embodiment, the positioning fixture 4 includes a workpiece positioning structure and a cover plate 48. The top of the workpiece positioning structure is provided with a positioning area for positioning and placing the battery top cover 100. The cover plate 48 covers the top of the workpiece positioning structure and is provided with at least one first positioning hole 481 corresponding to at least a portion of the positioning area.

[0051] Specifically, the workpiece positioning structure includes a base plate 41, a middle block 42, first side blocks 44 located on both sides of the length direction of the middle block 42, second side blocks 49 located on both sides of the width direction of the middle block 42, and abutting blocks 46 abutting against the outer sides of each of the first side blocks 44. The middle block 42, first side blocks 44, second side blocks 49, and abutting blocks 46 abutting against the outer sides of each of the first side blocks 44 are all fixed to the base plate 41. When the workpiece positioning structure is positioned within the conveying channel 13, the opposite sides of the base plate 41 are respectively placed within the corresponding conveying gaps. The inner side of the first guide block 621 and the upper end of the telescopic rod of the telescopic cylinder 71 respectively abut against both ends of the base plate 41. The upper side of the middle block 42, the inner sides of each of the first side blocks 44, and the inner sides of each of the second side blocks 49 enclose a workpiece positioning space. The upper side of the middle block 42 is provided with at least one positioning boss 43 corresponding to the position of the positioning hole. The first side blocks 44 and the second side blocks 49... A roller 45 is embedded at the upper end. The unriveted battery top cover 100 enters the positioning area by the rolling action of the roller 45, thereby preventing the peripheral side of the battery top cover 100 from being scratched and making it easier for the battery top cover 100 to enter the positioning area. There are generally two first positioning holes 481 on the cover plate 48, and there are also two positioning bosses 43. When the cover plate 48 is located above the workpiece positioning space and its two ends are respectively placed on the upper side of each abutment block 46, a positioning post 47 is fixed on the upper side of each abutment block 46. The two ends of the cover plate 48 are provided with second positioning holes 482. Each positioning post 47 is inserted into the corresponding second positioning hole 482. Then, the two pole posts 102 on the battery top cover 100 are placed on the two positioning bosses 43 and correspond to the positions of the two first positioning holes 481 respectively. At the same time, the pole post 102 on the battery top cover 100 that is not centered is located below the positioning hole or in the first positioning hole 481.

[0052] In this embodiment, the assembly structure 5 cooperates with the positioning fixture 4 to fix the terminal post 102 and the top cover piece 101 in the battery top cover 100 on the workpiece positioning structure to each other. Specifically, the assembly structure 5 includes a first template group 51, a second template group 52, a T-shaped post 53, a T-shaped punch 58, a push rod 57, and a center adjustment group 8. The first template group 51, the second template group 52, and the center adjustment group 8 are arranged sequentially from top to bottom. Among them, the T-shaped post 53, the T-shaped punch 58, the push rod 57, and the center adjustment group 8 form a center adjustment riveting group, and the center adjustment riveting group is set to two groups, which correspond to the positions of the two first positioning holes 481 respectively.

[0053] The second template group 52 is provided with at least one T-shaped mounting hole 54 corresponding to the position of the first positioning hole 481. The head of the T-shaped column 53 fits into the T-shaped mounting hole 54. The column body of the T-shaped column 53 extends to the center adjustment group 8. A first spring 520 abuts between the bottom surface of the first template group 51 and the top surface of the head of the T-shaped column 53. A second spring 521 abuts between the bottom surface of the horizontal part of the T-shaped column 53 and the bottom of the horizontal hole of the T-shaped mounting hole 54. A T-shaped through hole 531 is provided at the center of the T-shaped column 53. A T-shaped punch 58 fits into the T-shaped through hole 531. One end of the push rod 57 is embedded in the first template group 51, and the other end is inserted into the horizontal part of the T-shaped through hole 531 and abuts against the top of the T-shaped punch 58. A riveting protrusion 581 is formed on the bottom end face of the T-shaped punch 58. The T-shaped column 53 consists of a columnar body and a fixed columnar body. The upper part of the body is composed of transverse blocks; the central adjustment group 8 includes an adjustment plate 81 located above the cover plate 48. The adjustment plate 81 is provided with at least one cross-shaped adjustment hole 811 corresponding to the position of the positioning hole, and side push holes 812 provided at the ends of each branch hole of the cross-shaped adjustment hole 811. Each side push hole 812 is respectively connected to each branch hole of the cross-shaped adjustment hole 811. Each branch hole of the cross-shaped adjustment hole 811 is provided with an adjustment block 82. The outer side of each adjustment block 82 is provided with a first inclined surface 9. The upper part of the second template group 52 is fixed with a second guide block 83 corresponding to the position of each side push hole 812. The second guide block 83 is provided with a second inclined surface 9 adapted to the first inclined surface 9. The inner side of each adjustment block 82 extends downward to form an adjustment protrusion 821. The inner sides of each adjustment block 82 are spaced apart from each other.

[0054] Preferably, the conveying table 1 is fixed with a guide post 10 and a first limiting post 55. The first template group 51 is provided with a second limiting post 56 corresponding to the position of the first limiting post 55 and a guide hole 529 through which the guide post 10 passes. A return spring 12 is sleeved on the guide post 10. The two ends of the return spring 12 abut against the first template group 51 and the conveying table 1, respectively. A limiting rod is fixed on the base plate 41 and the adjusting plate 81. The end face of the limiting rod on the base plate 41 is higher than the top surface of the cover plate 48 covering the workpiece positioning structure. A limiting post is fixed on the top surface of the adjusting plate 81.

[0055] Based on the above, before the assembly structure 5 and the positioning fixture 4 are stamped, a preset gap is formed between the first template group 51 and the second template group 52 under the action of the first spring 520 and the return spring 12. A gap is also formed between the end of the first limiting post 55 and the end of the second limiting post 56, so that the lower ends of the T-shaped post 53 and the T-shaped punch 58 of the assembly structure 5 are far away from the first positioning hole 481, and the adjusting protrusion 821 of the adjusting block 82 of each center adjusting riveting group is also far away from the first positioning hole 481. When riveting is required... The stamping force of the press acts on the first template group 51, compressing the return spring 12. This causes the bottom surface of the adjusting plate 81 to be restricted by the limiting rod and approach the top surface of the cover plate 48. Simultaneously, the adjusting protrusion 821 of each center adjusting riveting group passes through the corresponding first positioning hole 481. Since the elastic force of the return spring 12 is less than that of the first spring 520 and the second spring 521, the first template group 51 and the second template group 52 can be pushed together without the gap between them narrowing. The second guide block 83 moves downwards, causing the adjusting block 82 to shift horizontally under the action of the inclined plane 9. Then, the adjusting protrusions 821 at each of the first positioning holes 481 push the four sides of the terminal post 102 on the battery top cover 100, thereby positioning the center of the terminal post 102. The action stops when the second template group 52 comes into contact with the top surface of the limiting post, and the second template group 52 can no longer move downwards. Therefore, during the lateral adjustment, since the first spring 520 and the second spring 521 also remain undeformed, the T-shaped... The lower ends of the column 53 and the T-shaped punch 58 do not contact the top surface of the pole column 102. At this time, the punching force continues to exert a pushing force on the first template group 51, causing it to move downward. This causes the first spring 520 and the second spring 521 to be compressed successively, so that the lower end of the T-shaped column 53 first presses against the top surface of the pole column 102. Finally, the riveting protrusion 581 of the T-shaped punch 58 rivets and punches the pole column 102, deforming it and causing the pole column 102 to be fixed in the inner hole of the riveting block 103, thus fixing the pole column 102 and the top cover plate 101 together. Among them, the adjustment block 82 is used for side push center positioning to position the riveting position on the pole column 102, avoiding the occurrence of a large deviation between the riveting position and the processing requirements.

[0056] In this embodiment, a concave groove is formed in the area of ​​the cross-shaped adjustment hole on the adjustment plate 81. A second fixing block 87 is respectively provided above the branch holes on both sides of the cross-shaped adjustment hole. The second fixing block 87 is fixed to the bottom of the concave groove, and each second fixing block 87 is provided with a clearance groove for the side push block to pass through. The top of the clearance groove slides in contact with the top surface of the corresponding adjustment block 82. A guide spring 88 is provided between the side wings of each adjustment block 82 and the side surface of the corresponding second fixing block 87. The two ends of the guide spring 88 are respectively embedded in the insertion holes on the side wings of the adjustment block 82 and the insertion holes on the side surface of the second fixing block 87. A limiting block 84 is respectively provided above the other two branch holes on both sides of the cross-shaped adjustment hole. Each limiting block 84 is fixed to the top surface of the adjustment block 82 and slides in contact with the top surface of the corresponding adjustment block 82. The limiting block 84 is provided with a through hole for the corresponding guide block to pass through. This structural design makes the displacement of the adjustment block 82 more stable and reliable, improving the compactness and stability of the structure.

[0057] In this embodiment, the first template group 51 includes a first plate 511 and a second plate 512 fixed to each other from top to bottom, and the second template group 52 includes a third plate 513 and a fourth plate 514 fixed to each other from top to bottom. The first plate 511 and the second plate 512 are fixed together by bolts, and the third plate 513 and the fourth plate 514 are fixed together by bolts.

[0058] The first plate 511 has first through holes 517 at positions corresponding to the two sides of the conveyor table 1 in the width direction. A sealing block 516 is fixed to the upper end of each first through hole 517. A third spring 518 is installed inside each first through hole 517. The second plate 512 has a first T-shaped through hole 523, a second through hole 526, a third through hole 515 and a fourth through hole 519 corresponding to the T-shaped mounting hole 54, and a second T-shaped through hole 530 corresponding to the first through hole 517 at positions corresponding to the two sides of the conveyor table 1 in the width direction. A first T-shaped rod 525 and a fourth spring 524 pass through the first T-shaped through hole 523. The two ends of the fourth spring 524 abut against the top surface of the first T-shaped rod 525 and the bottom surface of the first plate 511, respectively. The lower end of the first T-shaped rod 525 is fixed to the third plate 513. A fifth spring 527 is installed inside the second through hole 526. The third plate 513 has a sealing block 516 fixed to the top end of the first T-shaped rod 525 and the bottom end of the first plate 511, respectively. The fifth through hole 528 corresponds to the position of the second through hole 526. A second T-shaped rod 532 passes through the fifth through hole 528. The longitudinal part of the second T-shaped rod 532 passes through the fourth plate 514 and is fixed to the adjusting plate 81. The two ends of the fifth spring 527 abut against the top surface of the second T-shaped post 53 and the bottom surface of the first plate 511, respectively. A T-shaped guide post 522 passes through the second T-shaped through hole 530. The two ends of the third spring 518 are respectively connected to the T-shaped guide post 522. The top of the T-shaped guide post 522 abuts against the sealing block 516. The longitudinal part of the T-shaped guide post 522 passes through the third plate 513, the fourth plate 514, the adjusting plate 81 and the bottom plate 41 in sequence. The conveying table 1 has positioning holes on both sides in the width direction that correspond to the longitudinal part of the T-shaped guide post 522. The upper part of the push rod 57 is placed in the third through hole 515. The first spring 520 is placed in the fourth through hole 519. Each guide block is fixed to the bottom surface of the fourth plate 514.

[0059] Preferably, the T-shaped mounting hole 54 is formed by the sixth through hole 541 on the third plate 513 and the third T-shaped through hole 542 on the fourth plate 514 corresponding to each other.

[0060] Among them, the fourth spring 524 and the fifth spring 527 are mainly used to drive the first template group 51 and the second template group 52 to form a gap when the mold is opened, so as to cause the overall assembly structure 5 to reset. At the same time, the third spring 518 is used to give the T-shaped guide post 522 a flexible structure to prevent the T-shaped guide post 522 from being damaged by rigid collision with the conveyor table 1.

[0061] In this embodiment, an elongated groove 14 is provided on the conveying area 11 near the inner side of each baffle 2, and is arranged along the conveying direction of the conveying table 1. Multiple conveying wheels 15 arranged in a straight line are installed in each elongated groove 14. The wheel surface of the conveying wheel contacts the bottom surface of the base plate 41. The structure is designed so that the positioning fixture 4 can be smoothly inserted into or removed from the assembly structure 5, avoiding jamming.

[0062] Finally, the multiple positioning fixtures 4 arranged in a straight line can be pushed one by one to the bottom of the assembly structure by the continuous pushing of the belt conveyor.

Claims

1. A battery top cover assembly device, characterized in that, include: A conveying platform (1) is provided with a conveying area (11). Baffles (2) are installed on opposite sides of the conveying area (11) in the width direction to form a conveying channel (13) between the two baffles (2). Multiple rollers (3) are installed on the inner side of the baffles (2) at intervals. A conveying gap is formed between the lower side of each roller (3) and the conveying area (11). A first telescopic mechanism (6) and a second telescopic mechanism (7) are installed at both ends of the assembly position length direction of the conveying area (11). The positioning fixture (4) includes a workpiece positioning structure and a cover plate (48). The top of the workpiece positioning structure is provided with a positioning area for positioning and placing the battery top cover (100). The cover plate (48) covers the top of the workpiece positioning structure. The cover plate (48) is provided with at least one first positioning hole (481) corresponding to at least a part of the positioning area. Assembly structure (5), which cooperates with positioning fixture (4) to fix the terminal post (102) and the top cover piece (101) in the battery top cover (100) on the workpiece positioning structure to each other; When the positioning fixture (4) enters the assembly position of the conveying area (11) through one port of the conveying channel (13), the upper ends of the first telescopic mechanism (6) and the second telescopic mechanism (7) extend out of the assembly position surface of the conveying area (11) and contact the two ends of the positioning fixture (4) respectively. At the same time, the workpiece positioning structure is respectively limited in the corresponding conveying gap on both sides in the width direction, and at least some of the rollers (3) have wheel surfaces close to the upper surfaces of both sides of the workpiece positioning structure in the width direction.

2. The battery top cover assembly device according to claim 1, characterized in that: The first telescopic mechanism (6) includes a telescopic member (62), an elastic member, and a first fixing block (61). The assembly position of the conveying area (11) is provided with a first mounting groove (16). The telescopic member (62) is placed in a vertical through groove (612) on the side of the first fixing block (61) facing the positioning fixture (4), and the side of the first fixing block (61) facing the positioning fixture (4) is fixed to an inner wall of the first mounting groove (16) facing the positioning fixture (4). The upper end of the telescopic member (62) extends in the opposite direction to the positioning fixture (4) to form a first guide block (621). The side has a sloping surface (9) so that the upper side of the guide block is in a high position near the positioning fixture (4) and in a low position away from the positioning fixture (4). The elastic element is disposed between the lower side of the first guide block (621) and the upper side of the first fixed block (61). The lower end of the telescopic element (62) extends in the opposite direction to the positioning fixture (4) to form a limiting block (622). When the elastic element is extended, the limiting block (622) abuts against the lower side of the first fixed block (61). The upper side of the first guide block (621) extends out of the assembly surface of the conveying area (11) at the end near the positioning fixture (4).

3. The battery top cover assembly device according to claim 2, characterized in that: The upper side of the first fixing block (61) is provided with two spaced-apart blocks, and the first guide block (621) is located between the two blocks.

4. The battery cover assembly of claim 2, wherein: The second telescopic mechanism (7) includes at least one telescopic cylinder (71), the cylinder body of which is fixed in the second mounting groove (17) below the assembly position of the conveying area (11); when the telescopic rod of the telescopic cylinder (71) is extended, its telescopic rod extends to the assembly position surface of the conveying area (11); when the telescopic rod of the telescopic cylinder (71) is retracted, its telescopic rod end face is flush with or below the assembly position surface of the conveying area (11).

5. A battery top cover assembly device according to claim 1, characterized in that: The workpiece positioning structure includes a base plate (41), a middle block (42), first side stops (44) located on both sides of the length direction of the middle block (42), second side stops (49) located on both sides of the width direction of the middle block (42), and abutment blocks (46) abutting against the outer side of each first side stop (44). The middle block (42), the first side stops (44), the second side stops (49), and the abutment blocks (46) abutting against the outer side of each first side stop (44) are all fixed on the base plate (41). The upper side of the middle block (42) and each The inner side of the first side block (44) and the inner side of each second side block (49) form a workpiece positioning space. The upper side of the middle block (42) is provided with at least one positioning boss (43) corresponding to the position of the positioning hole. The cover plate (48) is located above the workpiece positioning space and its two ends are respectively placed on the upper side of each abutment block (46). The upper side of each abutment block (46) is fixed with a positioning post (47). The two ends of the cover plate (48) are provided with second positioning holes (482). Each positioning post (47) is inserted into the corresponding second positioning hole (482).

6. A battery top cover assembly device according to claim 5, characterized in that: The assembly structure (5) includes a first template group (51), a second template group (52), a T-shaped column (53), a T-shaped punch (58), a top rod (57), and a center adjustment group (8). The first template group (51), the second template group (52), and the center adjustment group (8) are arranged from top to bottom in sequence. The second template group (52) is provided with at least one T-shaped mounting hole (54) corresponding to the position of the first positioning hole (481). The head of the T-shaped column (53) fits into the T-shaped mounting hole (54). The column part of the T-shaped column (53) extends to the center adjustment group (8). The bottom surface of the first template group (51) and the top surface of the head of the T-shaped column (53) are in contact with a first spring (520). The bottom surface of the horizontal part of the T-shaped column (53) is in contact with the T-shaped mounting hole (54). A second spring (521) abuts between the bottom of the transverse hole of the hole (54). A T-shaped through hole (531) is provided at the center of the T-shaped column (53). A T-shaped punch (58) fits into the T-shaped through hole (531). One end of the push rod (57) is embedded in the first template group (51), and the other end is inserted into the transverse part of the T-shaped through hole (531) and abuts against the top of the T-shaped punch (58). A riveting protrusion (581) is formed on the bottom end face of the T-shaped punch (58). The central adjustment group (8) includes an adjustment plate (81) located above the cover plate (48). The adjustment plate (81) is provided with at least one cross-shaped adjustment hole corresponding to the position of the positioning hole, and side push holes provided at the ends of each branch hole of the cross-shaped adjustment hole. Each side push hole is connected to each branch hole of the cross-shaped adjustment hole. Each branch hole of the cross-shaped adjustment hole is provided with an adjustment block (82). Each adjustment block (82) has a first inclined surface (9) on its outer side. The second template group (52) is fixed with a second guide block (83) corresponding to the position of each side push hole. The second guide block (83) is provided with a second inclined surface (9) adapted to the first inclined surface (9). Each adjustment block (82) has an adjustment protrusion (821) extending downward from its inner side. The inner sides of each adjustment block (82) are spaced apart from each other.

7. A battery top cover assembly device according to claim 6, characterized in that: The conveying platform (1) is fixed with a guide post (10) and a first limiting post (55). The first template group (51) is provided with a second limiting post (56) corresponding to the position of the first limiting post (55) and a guide hole (529) through which the guide post (10) passes. A reset spring (12) is sleeved on the guide post (10). The two ends of the reset spring (12) abut against the first template group (51) and the conveying platform (1) respectively.

8. A battery top cover assembly device according to claim 6, characterized in that: The adjustment plate (81) has a concave groove formed in the area of ​​the cross-shaped adjustment hole. A second fixing block (87) is respectively provided above the branch holes on both sides of the cross-shaped adjustment hole. The second fixing block (87) is fixed to the bottom of the concave groove. Each second fixing block (87) is provided with a clearance groove for the side push block to pass through. The top of the clearance groove is in sliding contact with the top surface of the corresponding adjustment block (82). The side wings of each adjustment block (82) are respectively in contact with the side of the corresponding second fixing block (87). A guide spring (88) is in contact with the adjustment block (82). The two ends of the guide spring (88) are respectively embedded in the insertion holes on the side wings of the adjustment block (82) and the insertion holes on the side of the second fixing block (87). A limiting block (84) is respectively provided above the branch holes on the other two opposite sides of the cross-shaped adjustment hole. Each limiting block (84) is fixed to the top surface of the adjustment block (82) and slides in contact with the top surface of the adjustment block (82) at the corresponding position. A through hole is provided on the limiting block (84) for the corresponding second guide block (83) to pass through.

9. The battery cover assembly of claim 6, wherein: The first template group (51) includes a first plate (511) and a second plate (512) fixed to each other from top to bottom, and the second template group (52) includes a third plate (513) and a fourth plate (514) fixed to each other from top to bottom. The first plate (511) has a first through hole (517) at a position corresponding to the two sides of the conveyor table (1) in the width direction. A sealing block (516) is fixed at the upper end of each first through hole (517). A third spring (518) is provided in each first through hole (517). The second plate (512) has a first T-shaped through hole (523), a second through hole (526), ​​a third through hole (515) and a fourth through hole (519) corresponding to the position of the T-shaped mounting hole (54), and a second T-shaped through hole (530) corresponding to the position of the first through hole (517) at a position corresponding to the two sides of the conveyor table (1) in the width direction. A first T-shaped rod (525) and a second T-shaped through hole (530) are provided in the first T-shaped through hole (523). The fourth spring (524) has two ends that abut against the top surface of the first T-shaped rod (525) and the bottom surface of the first plate (511), respectively. The lower end of the first T-shaped rod (525) is fixed to the third plate (513). A fifth spring (527) is provided in the second through hole (526). A fifth through hole (528) corresponding to the position of the second through hole (526) is provided on the third plate (513). A second T-shaped rod (532) is passed through the fifth through hole (528). The longitudinal part of the second T-shaped rod (532) passes through the fourth plate (514) and is fixed to the adjusting plate (81). The two ends of the fifth spring (527) abut against the top surface of the second T-shaped column (53) and the bottom surface of the first plate (511), respectively. A T-shaped guide post (522) is inserted into the second T-shaped through hole (530). The two ends of the third spring (518) abut against the top of the T-shaped guide post (522) and the sealing block (516) respectively. The longitudinal part of the T-shaped guide post (522) passes through the third plate (513), the fourth plate (514), the adjusting plate (81) and the bottom plate (41) in sequence. The conveying table (1) is provided with positioning holes on both sides in the width direction that correspond to the longitudinal part of the T-shaped guide post (522). The upper part of the push rod (57) is placed in the third through hole (515). The first spring (520) is placed in the fourth through hole (519). A limiting rod is fixed on the base plate (41) and the adjusting plate (81), and the end face of the limiting rod on the base plate (41) is higher than the top surface of the cover plate (48) that is fitted onto the workpiece positioning structure.

10. A battery top cover assembly device according to claim 5, characterized in that: On the conveying area (11), there is an elongated groove (14) arranged along the conveying direction of the conveying table (1) near the inner side of each baffle (2). Multiple conveying wheels (15) arranged in a straight line are installed in each elongated groove (14). The wheel surface of the conveying wheel (15) is in contact with the bottom surface of the base plate (41).

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