A battery top cover terminal post riveting fixture

Abstract

This invention discloses a battery top cover terminal post riveting fixture, comprising a frame, a lower die mounted on the frame for positioning the battery top cover, an upper die positioned above the lower die, and an upper die driving mechanism mounted on the frame for driving the upper die downward to rivet a first terminal post assembly and a second terminal post assembly. Due to the adoption of the above technical solution, the battery top cover terminal post riveting fixture of this invention facilitates the positioning and riveting of the battery top cover.

Description

Technical Field

[0001] This invention relates to the field of mold technology, and in particular to a battery top cover terminal post riveting fixture. Background Technology

[0002] Currently, our company has developed a battery top cover, including a cover plate, a lower plastic part, a first terminal assembly, and a second terminal assembly. During the manufacturing of the battery top cover, the first and second terminal assemblies need to be riveted to mount them onto the cover plate. However, there is currently no specialized riveting fixture for this battery top cover, making it inconvenient to position and rivet the battery top cover. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a battery top cover terminal post riveting fixture that facilitates positioning and riveting of the battery top cover.

[0004] To solve the above-mentioned technical problems, one technical solution adopted by the present invention is to provide a battery top cover terminal post riveting fixture, including a frame, a lower mold disposed on the frame for positioning the battery top cover, an upper mold disposed above the lower mold, and an upper mold driving mechanism disposed on the frame for driving the upper mold to move downward to rivet the first terminal post assembly and the second terminal post assembly.

[0005] Furthermore, the lower mold includes a lower mold base, a first positioning part disposed on the lower mold base for positioning the first base plate, the second base plate and the lower plastic plate, a second positioning part disposed on the first positioning part for positioning the cover plate, and a third positioning part disposed on the second positioning part for positioning the first upper plastic plate, the first riveting block, the second upper plastic plate and the second riveting block.

[0006] Furthermore, the first positioning part includes a positioning block disposed on the lower mold base, a first positioning groove formed by recessing downward from the upper side of the positioning block and adapted to the lower plastic plate, a first clearance groove, a second clearance groove, and a third clearance groove formed by recessing downward from the bottom wall of the first positioning groove at positions corresponding to the first protrusion, the second protrusion, and the third protrusion, respectively, and a second positioning groove and a third positioning groove formed by recessing downward from the bottom wall of the first positioning groove at positions corresponding to the first base plate and the second base plate, respectively, and adapted to the first base plate and the second base plate, respectively.

[0007] Furthermore, a first through hole perpendicularly penetrating the bottom wall of the second positioning groove is formed on the positioning block at the position corresponding to the second positioning groove, and a second through hole perpendicularly penetrating the bottom wall of the third positioning groove is formed on the positioning block at the position corresponding to the third positioning groove; the lower mold also includes a first ejector mechanism disposed on the lower mold base, the first ejector mechanism including a first ejector column disposed on the lower mold base at the position corresponding to the first through hole and used to support the first base plate, a second ejector column disposed on the lower mold base at the position corresponding to the second through hole and used to support the second base plate, a first elastic member disposed on the lower mold base and used to push the positioning block upward, and a first limiting part used to limit the upper movement limit position of the positioning block. When the positioning block is at the upper movement limit position, the upper sides of the first ejector column and the second ejector column are flush with the bottom walls of the second positioning groove and the third positioning groove, respectively.

[0008] Furthermore, the second positioning part includes a positioning member disposed on the positioning block, a first positioning hole formed on the positioning member corresponding to the position of the cover plate and adapted to the cover plate, and a fourth positioning part disposed on the positioning block for positioning the positioning member on the positioning block.

[0009] Furthermore, the third positioning part includes a positioning plate, a fourth positioning groove formed by an upward indentation from the lower side of the positioning plate corresponding to the position of the first upper plastic plate and adapted to the first upper plastic plate, a second positioning hole formed on the positioning plate corresponding to the position of the first rivet block and perpendicularly penetrating the top wall of the groove of the fourth positioning groove, a fifth positioning groove formed by an upward indentation from the lower side of the positioning plate corresponding to the position of the second upper plastic plate and adapted to the second upper plastic plate, and a third positioning hole formed on the positioning plate corresponding to the position of the second rivet block and perpendicularly penetrating the top wall of the groove of the fifth positioning groove; the fourth positioning part is also used to position the positioning plate on the positioning member.

[0010] Furthermore, the lower mold also includes at least two limiting inserts disposed on the lower mold base, with the upper end surfaces of each limiting insert being flush. When the upper mold rivets and extends the upper end of the first riveting post and fills the large hole section of the first stepped hole, and when the upper mold rivets and extends the upper end of the second riveting post and fills the large hole section of the second stepped hole, the upper mold abuts against the upper end surfaces of each limiting insert.

[0011] Furthermore, the upper die includes an upper die base disposed on the upper die driving mechanism, a first punch disposed on the upper die base corresponding to the position of the first rivet post and used for stamping the first rivet post, a second punch disposed on the upper die base corresponding to the position of the second rivet post and used for stamping the second rivet post, and a pushing part disposed on the upper die base, the pushing part being used to push the first rivet block and the second rivet block.

[0012] Furthermore, the pushing part includes a pushing plate, a first protrusion formed by protruding downward from the lower side of the pushing plate corresponding to the position of the first rivet block, a second protrusion formed by protruding downward from the lower side of the pushing plate corresponding to the position of the second rivet block, a second elastic member disposed between the pushing plate and the upper mold base and used to push the pushing plate downward, and a second limiting part disposed on the upper mold base and used to limit the extreme position of the pushing plate moving downward relative to the upper mold base.

[0013] Furthermore, the frame includes an operating platform and a barrier disposed on the operating platform and surrounding the upper and lower molds. One side of the barrier is provided with a feed port for the battery top cover to enter the barrier. It also includes a lower mold driving mechanism for driving the lower mold to move toward the feed port. The lower mold driving mechanism is also used to drive the lower mold away from the feed port so that the lower mold moves directly below the upper mold.

[0014] Due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0015] When riveting the terminals of a battery top cover using the battery top cover terminal crimping fixture described in this invention, the battery top cover is positioned by the lower die, and the upper die is driven downward by the upper die driving mechanism to rivet the first terminal assembly and the second terminal assembly. The battery top cover terminal crimping fixture described in this invention facilitates the positioning and riveting of the battery top cover. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a top view of the battery cover;

[0018] Figure 2 yes Figure 1 AA section view;

[0019] Figure 3 yes Figure 2 Enlarged view of 'a' in the middle;

[0020] Figure 4 yes Figure 2 Enlarged view of b in the middle;

[0021] Figure 5 This is a schematic diagram of a preferred embodiment of a battery top cover terminal post riveting fixture according to the present invention;

[0022] Figure 6 This is a schematic diagram of the lower mold driving mechanism in a battery top cover terminal post riveting fixture of the present invention;

[0023] Figure 7 This is a schematic diagram of the lower mold in a battery top cover terminal post riveting fixture of the present invention;

[0024] Figure 8 This is a schematic diagram of the combined structure of the lower mold base and the first ejector mechanism in a battery top cover terminal post riveting fixture of the present invention;

[0025] Figure 9 This is a schematic diagram of the structure of the first positioning part in a battery top cover terminal post riveting fixture of the present invention;

[0026] Figure 10 This is a schematic diagram of the structure of the second positioning part in a battery top cover terminal post riveting fixture of the present invention;

[0027] Figure 11 This is a schematic diagram of the third positioning part in a battery top cover terminal post riveting fixture of the present invention;

[0028] Figure 12 This is a schematic diagram of the upper mold in a battery top cover terminal post riveting fixture of the present invention;

[0029] Figure 13 This is a schematic diagram of the structure of a battery top cover terminal post riveting fixture of the present invention, in which the pusher plate and guide post are omitted in the upper mold.

[0030] The meanings of the labels in the attached diagram are as follows:

[0031] Battery top cover -1; cover plate -11; lower plastic part -12; first terminal post assembly -13; second terminal post assembly -14; first terminal post mounting hole -111; second terminal post mounting hole -112; lower plastic plate -121; first protrusion -122; second protrusion -123; third protrusion -124; third terminal post mounting hole -125; fourth terminal post mounting hole -126; first upper plastic plate -131; first riveting block -132; first terminal post -133; first sealing ring -134; first upper plastic plate body -1311; first receiving groove -1312; first through hole -1313; first Riveting block body - 1321; First stepped hole - 1322; First base plate - 1331; First riveting post - 1332; First washer - 1341; First sealing ring - 1342; Second upper plastic plate - 141; Second riveting block - 142; Second pole post - 143; Second sealing ring - 144; Second upper plastic plate body - 1411; Second receiving groove - 1412; Second through hole - 1413; Second riveting block body - 1421; Second stepped hole - 1422; Second base plate - 1431; Second riveting post - 1432; Second washer - 1441; Second sealing ring - 1442;

[0032] Frame-2; Lower mold drive mechanism-3; Lower mold-4; Upper mold drive mechanism-5; Upper mold-6;

[0033] Operating platform-21; enclosure-22; feed inlet-221;

[0034] First drive mechanism - 31; guide section - 32; base plate - 321; first guide plate - 322; second guide plate - 323; first guide groove - 3221; second guide groove - 3231;

[0035] Lower mold base -41; First positioning part -42; Second positioning part -43; Third positioning part -44; First ejector mechanism -45; Limiting insert -46; Lower mold base plate -411; Lower mold pad plate -412; Positioning block -421; First positioning groove -422; First clearance groove -423; Second clearance groove -424; Third clearance groove -425; Second positioning groove -426; Third positioning groove -427; Third step hole -4211; First through hole -4212; Second through hole -4213; Positioning component -431; First positioning hole -432; Fourth positioning... Positioning part - 433; First U-shaped plate - 4311; Second U-shaped plate - 4312; First pin hole - 43111; Second pin hole - 43121; First positioning pin - 4331; Second positioning pin - 4332; Positioning plate - 441; Fourth positioning groove - 442; Second positioning hole - 443; Fifth positioning groove - 444; Third positioning hole - 445; Third pin hole - 4411; Fourth pin hole - 4412; First ejector post - 451; Second ejector post - 452; First elastic element - 453; First limiting part - 454; First limiting bolt - 4541;

[0036] Support plate-51; Connecting part-52; Second drive mechanism-53; Guide rod-521; Third guide plate-522;

[0037] Upper mold base - 61; guide post - 62; first punch - 63; second punch - 64; pushing part - 65; pusher plate - 651; first protrusion - 652; second protrusion - 653; second elastic element - 654; second limiting part - 655; fourth step hole - 6511; second limiting bolt - 6551. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0041] To clearly describe the battery top cover terminal post riveting fixture of the present invention, the structure of the battery top cover is briefly described first:

[0042] like Figure 1 and Figure 2 As shown, a battery top cover 1 includes a cover plate 11, a lower plastic part 12 disposed on the lower side of the cover plate 11, a first terminal post assembly 13 disposed at a first end of the cover plate 11, and a second terminal post assembly 14 disposed at a second end of the cover plate 11 opposite to the first end.

[0043] like Figure 3 and Figure 4 As shown, the cover plate 11 has a first pole mounting hole 111 and a second pole mounting hole 112 that are perpendicular to the upper and lower sides of the cover plate 11, respectively, at the positions corresponding to the first pole assembly 13 and the second pole assembly 14.

[0044] The lower plastic component 12 includes a lower plastic plate 121 stacked on the lower side of the cover plate 11, a first protrusion 122 formed by protruding downward from the lower plastic plate 121 at a position corresponding to the first end of the cover plate 11, a second protrusion 123 formed by protruding downward from the middle of the lower plastic plate 121, a third protrusion 124 formed by protruding downward from the lower plastic plate 121 at a position corresponding to the second end of the cover plate 11, a third pole mounting hole 125 formed on the lower plastic plate 121 at a position corresponding to the first pole mounting hole 111, and a fourth pole mounting hole 126 formed on the lower plastic plate 121 at a position corresponding to the second pole mounting hole 112.

[0045] The first pole assembly 13 includes a first upper plastic plate 131 disposed on the upper side of the cover plate 11 at the position corresponding to the first pole mounting hole 111, a first riveting block 132 disposed on the first upper plastic plate 131, a first pole 133, and a first sealing ring 134 disposed on the first pole 133.

[0046] The first upper plastic plate 131 includes a first upper plastic plate body 1311, a first receiving groove 1312 formed by recessing downward from the upper side of the first upper plastic plate body 1311, and a first through hole 1313 formed on the first upper plastic plate body at the position corresponding to the first pole mounting hole 111 and perpendicularly penetrating the bottom wall of the first receiving groove 1312 and the lower side of the first upper plastic plate body 1311.

[0047] The first riveting block 132 is located within and adapted to the first receiving groove 1312. The first riveting block 132 includes a first riveting block body 1321 and a first stepped hole 1322 formed in the first riveting block body 1321 at a position corresponding to the first through hole 1313. The large hole section of the first stepped hole 1322 penetrates the upper side of the first riveting block 132, and the small hole section of the first stepped hole 1322 penetrates the lower side of the first riveting block 132.

[0048] The first pole post 133 includes a first base plate 1331 located on the lower side of the lower plastic plate 121 at a position corresponding to the third pole post mounting hole 125, and a first riveting post 1332 protruding upward from the upper side of the first base plate 1331. The upper end of the first riveting post 1332 passes through the small hole section of the third pole post mounting hole 125, the first pole post mounting hole 111, the first through hole 1313, and the first stepped hole 1322 in sequence, and then fills the large hole section of the first stepped hole 1322 after being riveted and extended.

[0049] The first sealing ring 134 includes a first washer 1341 that is circumferentially disposed on the first rivet post 1332 and clamped between the first base plate 1331 and the lower plastic plate 121, and a first sealing ring 1342 that protrudes upward from the inner hole edge of the first washer 1341 and is circumferentially disposed on the first rivet post 1332.

[0050] The second pole assembly 14 includes a second upper plastic plate 141 disposed on the upper side of the cover plate 11 at the position corresponding to the second pole mounting hole 112, a second riveting block 142 disposed on the second upper plastic plate 141, a second pole 143, and a second sealing ring 144 disposed on the second pole 143.

[0051] The second upper plastic plate 141 includes a second upper plastic plate body 1411, a second receiving groove 1412 formed by recessing downward from the upper side of the second upper plastic plate body 1411, and a second through hole 1413 formed on the second upper plastic plate body 1411 at the position corresponding to the second pole mounting hole 112 and perpendicularly penetrating the bottom wall of the groove 1412 and the lower side of the second upper plastic plate body 1411.

[0052] The second riveting block 142 is located within and adapted to the second receiving groove 1412. The second riveting block 142 includes a second riveting block body 1421 and a second stepped hole 1422 formed in the second riveting block body 1421 at a position corresponding to the second through hole 1413. The large hole section of the second stepped hole 1422 penetrates the upper side surface of the second riveting block 142, and the small hole section of the second stepped hole 1422 penetrates the lower side surface of the second riveting block 142.

[0053] The second pole post 143 includes a second base plate 1431 located on the lower side of the lower plastic plate 121 at the position corresponding to the fourth pole post mounting hole 126, and a second riveting post 1432 protruding upward from the upper side of the second base plate 1431. The upper end of the second riveting post 1432 passes through the small hole section of the fourth pole post mounting hole 126, the second pole post mounting hole 112, the second through hole 1413, and the second stepped hole 1422 in sequence, and then fills the large hole section of the second stepped hole 1422 after being riveted and extended.

[0054] The second sealing ring 144 includes a second washer 1441 that is circumferentially disposed on the second rivet post 1432 and clamped between the second base plate 1431 and the lower plastic plate 121, and a second sealing ring 1442 that protrudes upward from the inner hole edge of the second washer 1441 and is circumferentially disposed on the second rivet post 1432.

[0055] like Figure 5As shown, an embodiment of a battery top cover terminal post riveting fixture of the present invention includes a frame 2, a lower mold driving mechanism 3, a lower mold 4, an upper mold driving mechanism 5, and an upper mold 6. The lower mold 4 is disposed on the frame 2. Specifically, the lower mold driving mechanism 3 is disposed on the frame 2, and the lower mold 4 is disposed on the lower mold driving mechanism 3, that is, the lower mold 4 is disposed on the frame 2 through the lower mold driving mechanism 3. The lower mold 4 is used to position the battery top cover 1. The upper mold 6 is disposed above the lower mold 4. The upper mold driving mechanism 5 is disposed on the frame 2. The upper mold driving mechanism 5 is used to drive the upper mold 6 to move downward to rivet the first terminal post assembly 13 and the second terminal post assembly 14. Specifically, the upper mold driving mechanism 5 is used to drive the upper mold 6 to move downward to rivet the first riveting post 1332 and the second riveting post 1432. The battery top cover terminal post riveting fixture of the present invention has the advantage of facilitating the positioning and riveting of the battery top cover 1. When riveting the terminals of the battery top cover 1 using the battery top cover terminal post riveting fixture described in this invention, the battery top cover 1 is positioned by the lower die 4, and the upper die 6 is driven downward by the upper die driving mechanism 5 to rivet the first riveting post 1332 and the second riveting post 1432, thereby achieving the riveting of the first terminal post assembly 13 and the second terminal post assembly 14. It is understood that the battery top cover terminal post riveting fixture is not limited to the structure described above. For example, in some embodiments, the battery top cover terminal post riveting fixture only includes a frame 2, a lower die 4, an upper die 6, and an upper die driving mechanism 5, with the lower die 4 directly mounted on the frame 2.

[0056] The frame 2 includes an operating table 21 and a enclosure 22. The enclosure 22 is located on the operating table 21 and surrounds the upper mold 6 and the lower mold 4. One side of the enclosure 22 is provided with a feed port 221 for the battery top cover 1 to enter the enclosure 22.

[0057] like Figure 6As shown, the lower mold driving mechanism 3 is used to drive the lower mold 4 to move towards the feed port 221. The lower mold driving mechanism 3 is also used to drive the lower mold 4 away from the feed port 221 so that the lower mold 4 moves directly below the upper mold 6. The lower mold driving mechanism 3 includes a first driving mechanism 31 and a guide part 32. The first driving mechanism 31 can be a cylinder, a hydraulic cylinder, or a push rod motor. The first driving mechanism 31 is mounted on the operating table 21. The first driving mechanism 31 is used to drive the lower mold 4 towards the feed port 221 to facilitate the placement of the battery top cover 1 on the lower mold 4. The first driving mechanism 31 is also used to drive the lower mold 4 away from the feed port 221 so that the lower mold 4 moves directly below the upper mold 6. The lower mold 4 is mounted on the guide part 32, which guides the lower mold 4 to make its movement more stable.

[0058] The guide portion 32 includes a base plate 321, a first guide plate 322, and a second guide plate 323. The base plate 321 is disposed on the operating table 21. The first guide plate 322 and the second guide plate 323 are disposed parallel to each other on the base plate 321. The side of the first guide plate 322 facing the second guide plate 323 is recessed inward to form a first guide groove 3221. The side of the second guide plate 323 facing the first guide plate 322 is recessed inward to form a second guide groove 3231 corresponding to the position of the first guide groove 3221. It can be understood that the guide portion 32 is not limited to the structure described above. For example, in some embodiments, the guide portion 32 may also include only the first guide plate 322 and the second guide plate 323, which are directly disposed on the operating table 21.

[0059] like Figure 7As shown, the lower mold 4 includes a lower mold base 41, a first positioning part 42, a second positioning part 43, a third positioning part 44, a first ejector mechanism 45, and limiting inserts 46. The first positioning part 42 is disposed on the lower mold base 41 and is used to position the first base plate 1331, the second base plate 1431, and the lower plastic plate 121. The second positioning part 43 is disposed on the first positioning part 42 and is used to position the cover plate 11. The third positioning part 44 is disposed on the second positioning part 43 and is used to position the first upper plastic plate 131, the first riveting block 132, the second upper plastic plate 141, and the second riveting block 142. There are two limiting inserts 46. In other embodiments, there may be more than two other limiting inserts 46. The limiting inserts 46 are disposed on the lower mold base 41, and the upper surfaces of each limiting insert 46 are flush. The battery top cover terminal post riveting fixture of the present invention can position the first base plate 1331, the second base plate 1431, the lower plastic plate 121, the cover plate 11, the first upper plastic plate 131, the first riveting block 132, the second upper plastic plate 141 and the second riveting block 142, and the positioning effect of the battery top cover 1 is good.

[0060] like Figure 8 As shown, the lower mold base 41 includes a lower mold base plate 411 and a lower mold pad plate 412. The lower mold base plate 411 is disposed on the base plate 321 and is connected to the output shaft of the first driving mechanism 31. With this structure, the first driving mechanism 31 can drive the lower mold 4 to move toward or away from the discharge port. One end of the lower mold base plate 411 is located in and adapted to the first guide groove 3221, and the opposite end of the lower mold base plate 411 is located in and adapted to the second guide groove 3231. With this structure, the guide part 32 can guide the movement of the lower mold 4. The lower mold pad plate 412 is disposed on the lower mold base plate 411, and the limiting insert 46 is formed on the upper side of the lower mold pad plate 412. Two guide sleeves are formed on the lower mold pad plate 412. It can be understood that in other embodiments, there can be more than two other guide sleeves.

[0061] like Figure 9As shown, the first positioning part 42 includes a positioning block 421, a first positioning groove 422, a first clearance groove 423, a second clearance groove 424, a third clearance groove 425, a second positioning groove 426, and a third positioning groove 427. The positioning block 421 is disposed on the lower mold base 41. Specifically, the positioning block 421 is disposed on the lower mold pad 412. Four third step holes 4211 are formed on the positioning block 421. It can be understood that in some embodiments, the third step holes 4211 may be two or more other numbers. The large hole section of the third step hole 4211 extends upward through the upper side of the positioning block 421, and the small hole section of the third step hole 4211 extends through the lower side of the positioning block 421. The first positioning groove 422 is formed by recessing downward from the upper side of the positioning block 421. The first positioning groove 422 is adapted to the lower plastic plate 121. Placing the lower plastic plate 121 in the first positioning groove 422 can achieve the positioning of the lower plastic plate 121 by the first positioning part 42. The first recess 423 is formed by a downward indentation from the bottom wall of the first positioning groove 422 corresponding to the position of the first protrusion 122. The second recess 424 is formed by a downward indentation from the bottom wall of the first positioning groove 422 corresponding to the position of the second protrusion 123. The third recess 425 is formed by a downward indentation from the bottom wall of the first positioning groove 422 corresponding to the position of the third protrusion 124. After the lower plastic plate 121 is placed in the first positioning groove 422, the first protrusion 122, the second protrusion 123 and the third protrusion 124 are respectively located in the first recess 423, the second recess 424 and the third recess 425. The second positioning groove 426 is formed by a downward indentation from the bottom wall of the first positioning groove 422 at a position corresponding to the first base plate 1331. The second positioning groove 426 is adapted to the first base plate 1331, and positioning of the first base plate 1331 can be achieved after the first base plate 1331 is placed in the second positioning groove 426. The third positioning groove 427 is formed by a downward indentation from the bottom wall of the first positioning groove 422 at a position corresponding to the second base plate 1431. The third positioning groove 427 is adapted to the second base plate 1431, and positioning of the second base plate 1431 can be achieved after the second base plate 1431 is placed in the third positioning groove 427.

[0062] A first through hole 4212 is formed on the positioning block 421 at a position corresponding to the second positioning groove 426, perpendicularly penetrating the bottom wall of the second positioning groove 426. A second through hole 4213 is formed on the positioning block 421 at a position corresponding to the third positioning groove 427, perpendicularly penetrating the bottom wall of the third positioning groove 427. In this embodiment, the cross-section of the first through hole 4212 is adapted to the cross-section of the second positioning groove 426, and the cross-section of the second through hole 4213 is adapted to the cross-section of the third positioning groove 427. It can be understood that in other embodiments, the cross-section of the first through hole 4212 may not be adapted to the cross-section of the second positioning groove 426, and the cross-section of the second through hole 4213 may not be adapted to the cross-section of the third positioning groove 427.

[0063] like Figure 9 and Figure 10 As shown, the second positioning part 43 includes a positioning member 431, a first positioning hole 432, and a fourth positioning part 433. The positioning member 431 is disposed on the positioning block 421. The first positioning hole 432 is formed on the positioning member 431 at a position corresponding to the cover plate 11 and is adapted to the cover plate 11. When the cover plate 11 is placed in the first positioning hole 432, the first positioning hole 432 can realize the positioning of the cover plate 11. The fourth positioning part 433 is disposed on the positioning block 421 and is used to position the positioning member 431, that is, the fourth positioning part 433 positions the positioning member 431 on the positioning block 421.

[0064] like Figure 10As shown, the positioning member 431 includes a first U-shaped plate 4311 disposed on the upper side of one end of the positioning block 421 and opening towards the opposite end of the positioning block 421, and a second U-shaped plate 4312 disposed on the other end of the positioning block 421 and opening towards the first U-shaped plate 4311. The first U-shaped plate 4311 and the second U-shaped plate 4312 together form the first positioning hole 432. Two first pin holes 43111 are formed on the first U-shaped plate 4311, perpendicularly penetrating the first U-shaped plate 4311. Of course, in other embodiments, the number of first pin holes 43111 formed on the first U-shaped plate 4311 can be two or more. Two second pin holes 43121 are formed on the second U-shaped plate 4312, perpendicularly penetrating the second U-shaped plate 4312. Of course, in other embodiments, the number of second pin holes 43121 formed on the second U-shaped plate 4312 can be two or more. It is understood that the positioning element 431 is not limited to the structure described above. For example, in some embodiments, the positioning element 431 may also be a plate provided on the positioning block 421, with the first positioning hole 432 penetrating the plate vertically, and each of the first pin holes 43111 and each of the second pin holes 43121 being formed on the plate.

[0065] like Figure 9 As shown, the fourth positioning part 433 includes a first positioning pin 4331 and a second positioning pin 4332. There are two first positioning pins 4331. It is understood that in some embodiments, there may be more than two other types of first positioning pins 4331. The two first positioning pins 4331 are disposed on the positioning block 421, corresponding to the positions of the two first pin holes 43111 respectively. There are also two second positioning pins 4332. It is understood that in some embodiments, there may be more than two other types of second positioning pins 4332. The two second positioning pins 4332 are formed on the positioning block 421, corresponding to the positions of the two second pin holes 43121 respectively. The first U-shaped plate can be positioned by the cooperation of the first positioning pin 4331 and the first pin hole 43111, and the second U-shaped plate can be positioned by the cooperation of the second positioning pin 4332 and the second pin hole 43121, thereby enabling the fourth positioning part 433 to position the positioning member 431.

[0066] like Figure 11As shown, the third positioning part 44 includes a positioning plate 441, a fourth positioning groove 442, a second positioning hole 443, a fifth positioning groove 444, and a third positioning hole 445. The fourth positioning groove 442 is formed by an upward indentation from the lower side of the positioning plate 441 corresponding to the position of the first upper plastic plate 131. The fourth positioning groove 442 is adapted to the first upper plastic plate 131. The second positioning hole 443 is formed on the positioning plate 441 corresponding to the position of the first rivet block 132. The second positioning hole 443 vertically penetrates the top wall of the fourth positioning groove 442. The fifth positioning groove 444 is formed by an upward indentation from the lower side of the positioning plate 441 corresponding to the position of the second upper plastic plate 141. The fifth positioning groove 444 is adapted to the second upper plastic plate 141. The third positioning hole 445 is formed on the positioning plate 441 corresponding to the position of the second rivet block 142. The third positioning hole 445 vertically penetrates the top wall of the fifth positioning groove 444. The fourth positioning part 433 is also used to position the positioning plate 441 on the positioning member 431. Specifically, the positioning plate 441 has a third pin hole 4411 adapted to each of the first positioning pins 4331 at the corresponding positions, and a fourth pin hole 4412 adapted to each of the second positioning pins 4332 at the corresponding positions. When positioning the battery top cover 1, the first base plate 1331 and the second base plate 1431 are first placed in the second positioning groove 426 and the third positioning groove 427 respectively, and the second positioning groove 426 and the third positioning groove 427 respectively position the first base plate 1331 and the second base plate 1431. Then, the first sealing ring 134 and the second sealing ring 144 are fitted onto the first riveting post 1332 and the second riveting post 1432. Then, the lower plastic part 12 is placed in the first positioning groove 422. The first protrusion 122, the second protrusion 123, and the third protrusion 124 are respectively located in the first clearance groove 423, the second clearance groove 424, and the third clearance groove 425. The third pole post mounting hole 125 and the fourth pole post mounting hole 126 are respectively fitted onto the first riveting post 1332 and the second riveting post 1432. The first positioning groove 422 positions the lower plastic plate 121. Then, the cover plate 11 is placed in the first positioning hole 432. The first pole post mounting hole 111 and the second pole post mounting hole 112 are respectively fitted onto the first riveting post 1332 and the second riveting post 1432. The first positioning hole 432 positions the cover plate 11.Then, the first upper plastic plate 131 and the second upper plastic plate 141 are placed on the cover plate 11. The first through hole 1313 and the second through hole 1413 are respectively fitted onto the first riveting post 1332 and the second riveting post 1432. Then, the first riveting block 132 and the second riveting block 142 are respectively placed into the first receiving groove 1312 and the second receiving groove 1412. The first stepped hole 1322 and the second stepped hole 1422 are respectively fitted onto the first riveting post 1332 and the second riveting post 1432. Then, the positioning plate 441 is placed on the positioning member 431. The fourth positioning part 433 positions the positioning plate 441 on the positioning member 431. At this time, the first upper plastic plate 131 is located in the fourth positioning groove 442. The second upper plastic plate 141 is located in the fifth positioning groove 444, the first rivet block 132 is located in the second positioning hole 443, and the second rivet block 142 is located in the third positioning hole 445. The fourth positioning groove 442 and the fifth positioning groove 444 respectively position the first upper plastic plate 131 and the second upper plastic plate 141, and the second positioning hole 443 and the third positioning hole 445 respectively position the first rivet block 132 and the second rivet block 142. With this structure, the lower mold 4 can position the first base plate 1331, the second base plate 1431, the lower plastic plate 121, the cover plate 11, the first upper plastic plate 131, the first rivet block 132, the second upper plastic plate 141, and the second rivet block 142.

[0067] like Figure 8As shown, the first ejector mechanism 45 is mounted on the lower mold base 41. The first ejector mechanism 45 includes a first ejector post 451, a second ejector post 452, a first elastic element 453, and a first limiting part 454. The first ejector post 451 is located on the lower mold base 41 at a position corresponding to the first through hole 4212, and the first ejector post 451 is used to support the first base plate 1331. The second ejector post 452 is located on the lower mold base 41 at a position corresponding to the second through hole 4213, and the second ejector post 452 is used to support... The second base plate 1431, the first elastic element 453 is a spring or elastic rubber column, the first elastic element 453 is provided on the lower mold base 41, the first elastic element 453 is used to push the positioning block 421 upward, the first limiting part 454 is used to limit the extreme position of the upward movement of the positioning block 421, when the positioning block 421 is at the extreme position of upward movement, the upper side surfaces of the first ejector column 451 and the second ejector column 452 are flush with the bottom walls of the second positioning groove 426 and the third positioning groove 442 respectively. Before the upper mold driving mechanism 5 drives the upper mold 6 to press the lower mold 4, the positioning block 421 is at its upward extreme position. At this time, the upper sides of the first ejector pin 451 and the second ejector pin 452 are flush with the bottom walls of the second positioning groove 426 and the third positioning groove 442, respectively. The space in the second positioning groove 426 and the third positioning groove 442 will not be occupied by the first ejector pin 451 and the second ejector pin 452, and the second positioning groove 426 and the third positioning groove 427 can just accommodate the... The first base plate 1331 and the second base plate 1431 provide good positioning for the initial positions of the first base plate 1331 and the second top plate, and facilitate the accurate fitting of the third pole post mounting hole 125, the first pole post mounting hole 111, the first through hole 1313 and the first stepped hole 1322 onto the first riveting post 1332, and facilitate the fitting of the fourth pole post mounting hole 126, the second pole post mounting hole 112, the second through hole 1413 and the second stepped hole 1422 onto the second riveting post 1432.During the downward movement of the upper mold 6 driven by the upper mold drive mechanism 5, the upper mold 6 can press down on the positioning plate 441, and the positioning member 431 and the positioning block 421 will all move downward. The positioning block 421 compresses the first elastic member 453. The first base plate 1331 and the second base plate 1431 are respectively supported on the first ejector post 451 and the second ejector post 452. The first base plate 1331 and the second base plate 1431 cannot move downward. During the downward movement of the positioning block 421, the second positioning groove 426 and the third positioning groove 427 will move downward, causing the first base plate 1331 and the second... The portion of the base plate 1431 located within the second positioning groove 426 and the third positioning groove 427 gradually decreases until the upper mold 6 completes the riveting of the first riveting post 1332 and the second riveting post 1432. At this point, only a small portion of the bottom of the first base plate 1331 and the second base plate 1431 is located within the second positioning groove 426 and the third positioning groove 427. This reduces the probability that the first base plate 1331 will be deformed by riveting and become tight in the second positioning groove 426, and also reduces the probability that the second base plate 1431 will be deformed by riveting and become tight in the third positioning groove 427. This makes it easier to remove the battery top cover 1 from the lower mold 4 after riveting is completed.

[0068] The first limiting part 454 includes four first limiting bolts 4541 disposed on the lower mold base 41. It is understood that in some embodiments, the limiting bolts may be two or more, as long as each first limiting bolt 4541 has a corresponding third step hole 4211. The four first limiting bolts 4541 correspond one-to-one with the four third step holes 4211, and each first limiting bolt 4541 is located within its corresponding third step hole 4211. Specifically, the threaded portion of the first limiting bolt 4541 is located within and adapted to the small hole section of the third step hole 4211, while the bolt head of the first limiting bolt 4541 is located within the large hole section of the third step hole 4211. This structure enables the first limiting part 454 to limit the upward movement of the positioning block 421 relative to the lower mold base 41 to its extreme position.

[0069] like Figure 5 As shown, the upper mold driving mechanism 5 includes a support plate 51 disposed above the operating table 21, a connecting part 52 for connecting the operating table 21 and the support plate 51, and a second driving mechanism 53 disposed on the support plate 51 for driving the upper mold 6 to rise and fall. The second driving mechanism 53 is a pneumatic cylinder, a hydraulic cylinder, or a push rod motor.

[0070] The connecting part 52 includes guide rods 521 and a third guide plate 522. There are four guide rods 521; however, in other embodiments, the number of guide rods 521 can vary. The four guide rods 521 connect the operating table 21 and the support plate 51, with each guide rod 521 positioned between the support plate 51 and the operating table 21. The third guide plate 522 is slidably mounted on the guide rods 521. Specifically, the third guide plate 522 corresponds to each of the guide rods 521. Each rod 521 has a guide hole adapted to the guide rod 521 at its position. Each guide hole is sleeved on the corresponding guide rod 521. The output shaft of the second drive mechanism 53 is connected to the upper side of the third guide plate 522. The upper mold 6 is located on the lower side of the third guide plate 522. During the process of the second drive mechanism 53 driving the upper mold 6 to move up and down, each guide rod 521 can guide the lifting and lowering of the third guide plate 522, making the lifting and lowering process of the upper mold 6 more stable.

[0071] like Figure 12As shown, the upper mold 6 includes an upper mold base 61, guide pillars 62, a first punch 63, a second punch 64, and a pushing part 65. The upper mold base 61 is disposed on the upper mold driving mechanism 5. Specifically, the upper mold base 61 is disposed on the third guide plate 522. There are two guide pillars 62. It can be understood that in other embodiments, there may be more than two guide pillars 62. The two guide pillars 62 are disposed on the upper mold base 61, respectively corresponding to the positions of the two guide sleeves. The guide pillars 62 are adapted to the inner holes of the guide sleeves. Under the cooperation of the guide sleeves and the guide pillars 62, they can guide the up and down movement of the upper mold base 61. The first punch 63 is disposed on the upper die base 61 at the position corresponding to the first riveting post 1332, and the first punch 63 is used to punch the first riveting post 1332. The second punch 64 is disposed on the upper die base 61 at the position corresponding to the second riveting post 1432, and the second punch 64 is used to punch the second riveting post 1432. The pushing part 65 is disposed on the upper die base 61, and the pushing part 65 is used to push the first riveting block 132 and the second riveting block 142. When the battery top cover 1 needs to be riveted, the second driving mechanism 53 drives the third guide plate 522 to move downward. The upper mold base 61 moves downward with the third guide plate 522, and the first punch 63 can enter the large hole section of the first stepped hole 1322 and rivet the upper end of the first riveting post 1332, so that the upper end of the first riveting post 1332 is extended by riveting and fills the large hole section of the first stepped hole 1322. At the same time, the second punch 64 can enter the large hole section of the second stepped hole 1422 and rivet the upper end of the second riveting post 1432, so that the upper end of the second riveting post 1432 is extended by riveting and fills the large hole section of the second stepped hole 1422. In this way, the upper mold 6 can rivet the first riveting post 1332 and the second riveting post 1432. When the upper mold 6 rivets and extends the upper end of the first riveting post 1332 and fills the large hole section of the first stepped hole 1322, and when the upper mold 6 rivets and extends the upper end of the second riveting post 1432 and fills the large hole section of the second stepped hole 1422, the upper mold 6 abuts against the upper end face of each of the limiting inserts 46. Specifically, the upper mold base 61 is supported on the two limiting inserts 46 respectively. The limiting inserts 46 limit the extreme position of the downward movement of the upper mold base 61 to prevent the upper mold 6 from crushing the battery top cover 1.After the first punch 63 and the second punch 64 complete the riveting of the first riveting post 1332 and the second riveting post 1432, the second driving mechanism 53 drives the third guide plate 522 to move upward. The upper die base 61 moves upward with the third guide plate 522, and the first punch 63 and the second punch 64 move upward with the upper die base 61. Under the pushing action of the pushing part 65 on the first riveting block 132 and the second riveting block 142, it is convenient for the first punch 63 to be pulled out from the large hole section of the first stepped hole 1322, and it is convenient for the second punch 64 to be pulled out from the large hole section of the second stepped hole 1422.

[0072] like Figure 12 and Figure 13 As shown, the pushing part 65 includes a pushing plate 651, a first protrusion 652, a second protrusion 653, a second elastic member 654, and a second limiting part 655. A fourth stepped hole 6511 is formed on the pushing plate 651. It can be understood that in other embodiments, the fourth stepped hole 6511 may be of other numbers. The large hole section of the fourth stepped hole 6511 penetrates the lower side of the pushing plate 651, and the small hole section of the fourth stepped hole 6511 penetrates the upper side of the pushing plate 651. The first protrusion 652 is formed by protruding downward from the lower side of the pusher plate 651 corresponding to the position of the first rivet block 132. The second protrusion 653 is formed by protruding downward from the lower side of the pusher plate 651 corresponding to the position of the second rivet block 142. The second elastic member 654 is a spring or an elastic rubber column. The second elastic member 654 is disposed between the pusher plate 651 and the upper mold base 61 and is used to push the pusher plate 651 downward. The second limiting part 655 is disposed on the upper mold base 61. The second limiting part 655 is used to limit the extreme position of the pusher plate 651 moving downward relative to the upper mold base 61. When it is necessary to pull out the first punch 63 and the second punch 64 from the large hole sections of the first stepped hole 1322 and the second stepped hole 1422 respectively, the upper end of the second elastic member 654 abuts against the upper mold base 61, and the lower end of the second elastic member 654 abuts against the push plate 651 downwards. This causes the first protrusion 652 and the second protrusion 653 to abut against the first riveting block 132 and the second riveting block 142 respectively, thereby enabling the pushing part 65 to push the first riveting block 132 and the second riveting block 142. The second limiting part 655 is used to limit the downward movement of the push plate 651 relative to the upper mold base 61 to its extreme position, preventing the push plate 651 from falling off the upper mold base 61.

[0073] The second limiting part 655 includes three second limiting bolts 6551 disposed on the upper mold base 61. It is understood that in some embodiments, the second limiting bolts 6551 may be two or more, as long as each second limiting bolt 6551 has a corresponding fourth step hole 6511. The three second limiting bolts 6551 correspond one-to-one with the three fourth step holes 6511, and each second limiting bolt 6551 is located within its corresponding fourth step hole 6511. Specifically, the threaded portion of the second limiting bolt 6551 is located within and adapted to the small hole section of the fourth step hole 6511, while the bolt head of the second limiting bolt 6551 is located within the large hole section of the fourth step hole 6511. This structure enables the second limiting part 655 to limit the downward movement of the pusher plate 651 relative to the upper mold base 61 to its extreme position.

[0074] The above embodiments merely illustrate preferred implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention should be determined by the appended claims.

Claims

1. A battery top cover terminal post riveting fixture, characterized in that: It includes a frame, a lower mold disposed on the frame for positioning the battery top cover, an upper mold disposed above the lower mold, and an upper mold drive mechanism disposed on the frame for driving the upper mold to move downward to rivet the first electrode assembly and the second electrode assembly. The lower mold includes a lower mold base and a first positioning part disposed on the lower mold base for positioning the first base plate, the second base plate, and the lower plastic plate. The first positioning part includes a positioning block disposed on the lower mold base, a first positioning groove recessed downward from the upper side of the positioning block and adapted to the lower plastic plate, and a second positioning groove and a third positioning groove recessed downward from the bottom wall of the first positioning groove at positions corresponding to the first base plate and the second base plate, respectively adapted to the first base plate and the second base plate. A first through hole perpendicularly penetrating the bottom wall of the second positioning groove is formed on the positioning block at a position corresponding to the second positioning groove, and a second through hole perpendicularly penetrating the bottom wall of the third positioning groove is formed on the positioning block at a position corresponding to the third positioning groove. The lower mold also includes a first ejector mechanism disposed on the lower mold base. The first ejector mechanism includes a first ejector column disposed on the lower mold base corresponding to the position of the first through hole and used to support the first base plate, a second ejector column disposed on the lower mold base corresponding to the position of the second through hole and used to support the second base plate, and a first elastic member disposed on the lower mold base and used to push the positioning block upward. The first ejector mechanism further includes a first limiting part for limiting the upward movement of the positioning block to the extreme position. When the positioning block is in the extreme position, the upper sides of the first ejector column and the second ejector column are flush with the bottom walls of the second positioning groove and the third positioning groove, respectively. During the riveting process, the upper die presses down on the positioning block, which compresses the first elastic element. The first base plate and the second base plate are respectively supported on the first and second ejector pins. The first and second base plates cannot move downward. As the positioning block moves downward, the second and third positioning grooves move downward with the positioning block, causing the portions of the first and second base plates located in the second and third positioning grooves to gradually decrease until the upper die completes the riveting of the first and second riveting pins. At this point, only a small portion of the bottom of the first and second base plates is located in the second and third positioning grooves.

2. The battery top cover terminal post riveting fixture as described in claim 1, characterized in that: The lower mold further includes a second positioning part disposed on the first positioning part for positioning the cover plate, and a third positioning part disposed on the second positioning part for positioning the first upper plastic plate, the first riveting block, the second upper plastic plate and the second riveting block.

3. The battery top cover terminal post riveting fixture as described in claim 1, characterized in that: The first positioning part further includes a first relief groove, a second relief groove, and a third relief groove formed by downward recesses from the bottom wall of the first positioning groove at positions corresponding to the first protrusion, the second protrusion, and the third protrusion, respectively.

4. The battery top cover terminal post riveting fixture as described in claim 2, characterized in that: The second positioning part includes a positioning member disposed on the positioning block, a first positioning hole formed on the positioning member corresponding to the position of the cover plate and adapted to the cover plate, and a fourth positioning part disposed on the positioning block for positioning the positioning member on the positioning block.

5. A battery top cover terminal post riveting fixture as described in claim 4, characterized in that: The third positioning part includes a positioning plate, a fourth positioning groove formed by an upward indentation from the lower side of the positioning plate corresponding to the position of the first upper plastic plate and adapted to the first upper plastic plate, a second positioning hole formed on the positioning plate corresponding to the position of the first rivet block and perpendicularly penetrating the top wall of the fourth positioning groove, a fifth positioning groove formed by an upward indentation from the lower side of the positioning plate corresponding to the position of the second upper plastic plate and adapted to the second upper plastic plate, and a third positioning hole formed on the positioning plate corresponding to the position of the second rivet block and perpendicularly penetrating the top wall of the fifth positioning groove; the fourth positioning part is also used to position the positioning plate on the positioning member.

6. The battery top cover terminal post riveting fixture as described in claim 1, characterized in that: The lower mold further includes at least two limiting inserts disposed on the lower mold base. The upper end surfaces of each limiting insert are flush. When the upper mold rivets and extends the upper end of the first riveting post and fills the large hole section of the first stepped hole, and when the upper mold rivets and extends the upper end of the second riveting post and fills the large hole section of the second stepped hole, the upper mold abuts against the upper end surfaces of each limiting insert.

7. The battery top cover terminal post riveting fixture as described in claim 1, characterized in that: The upper die includes an upper die base on the upper die driving mechanism, a first punch on the upper die base corresponding to the position of the first rivet post and used for stamping the first rivet post, a second punch on the upper die base corresponding to the position of the second rivet post and used for stamping the second rivet post, and a pushing part on the upper die base, the pushing part being used to push the first rivet block and the second rivet block.

8. The battery top cover terminal post riveting fixture as described in claim 7, characterized in that: The pushing part includes a pushing plate, a first protrusion formed by protruding downward from the lower side of the pushing plate corresponding to the position of the first rivet block, a second protrusion formed by protruding downward from the lower side of the pushing plate corresponding to the position of the second rivet block, a second elastic member disposed between the pushing plate and the upper mold base and used to push the pushing plate downward, and a second limiting part disposed on the upper mold base and used to limit the extreme position of the pushing plate moving downward relative to the upper mold base.

9. A battery top cover terminal post riveting fixture as described in claim 1, characterized in that: The frame includes an operating platform and a barrier disposed on the operating platform and surrounding the upper and lower molds. One side of the barrier is provided with a feed port for the battery top cover to enter into the barrier. It also includes a lower mold driving mechanism for driving the lower mold to move toward the feed port. The lower mold driving mechanism is also used to drive the lower mold away from the feed port so that the lower mold moves directly below the upper mold.

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