Battery case stamping device

Abstract

The utility model relates to a battery case stamping device which comprises a stamping table, a rack is arranged on the stamping table, a stamping part for stamping materials is arranged in the rack, a stamping groove is formed in the stamping table and located below the stamping part, and an abutting-out part for abutting out a battery case is arranged in the stamping groove. The device has the effect that the shell can be conveniently taken out of the stamping groove.

Description

Technical Field

[0001] The present application relates to the technical field of battery shell processing, and in particular to a battery shell stamping device. Background Art

[0002] The battery case is a cylindrical shell used to protect the internal structure of the battery. It is mostly formed by stamping equipment during the production process. Stamping is a production technology that uses the power of conventional or special stamping equipment to directly press and shape the sheet in the mold to obtain product parts of a certain shape, size and performance.

[0003] The Chinese patent with publication number CN218079986U discloses a lithium battery shell stamping die, which uses a rubber cylinder, a return spring, a cutter body, a roller, a rolling shaft, a gear, a serrated plate and a stopper to buffer the product during the punching operation, thereby avoiding damage to the product during the stamping process. At the same time, the design of the cutter body, the roller, the rolling shaft, the gear, the serrated plate and the stopper makes the lifting process of the cutter body more stable.

[0004] With regard to the above-mentioned related technologies, the punching head punches the shell, and the shell is deformed by the force and sinks into the punching groove. Since the deformed shell fits the side wall of the punching groove, when the punching head is pulled out, the battery shell will remain in the punching groove due to the friction force. At this time, the contact area between the battery shell and the outside world is small, and it is inconvenient for the staff to take out the shell, which is insufficient. Utility Model Content

[0005] In order to facilitate the removal of the battery shell from the stamping groove, the present application provides a battery shell stamping device.

[0006] The battery shell punching device provided in this application adopts the following technical solution:

[0007] A battery shell stamping device comprises a stamping table, a frame is provided on the stamping table, a stamping part for stamping materials is provided in the frame, a stamping groove is provided on the stamping table, the stamping groove is located below the stamping part, and a push-out part for pushing out the battery shell is provided in the stamping groove.

[0008] By adopting the above technical solution, the steel strip is placed above the stamping groove, and the stamping parts stamp the steel strip raw material. After the stamping is completed, the stamped battery shell fits in the stamping groove, and finally the battery shell is pushed out by the ejection parts, making it convenient for the staff to remove the battery shell.

[0009] Optionally, the ejector punch includes a push rod, which is passed through the inside of the stamping groove and slidably cooperates with the stamping groove. A rack is provided at the bottom of the push rod, and the rack is arranged in a vertical direction. A driving member for driving the ejector to move is provided in the stamping table. In an initial state, the top of the push rod is flush with the bottom surface of the stamping groove.

[0010] By adopting the above technical solution, the push rod and the stamping groove are slidably matched. After the battery shell is stamped, it will fit against the side wall of the stamping groove. The driving part moves the push rod upward to push the battery shell out along the stamping groove, making it convenient for the staff to take it. In the initial state, the push rod is flush with the bottom surface of the stamping groove, so that the push rod does not affect the stamping of the battery shell.

[0011] Optionally, the driving member includes a driving motor, and the driving motor is arranged at one side of the punching table. A semicircular gear is provided at an output end of the driving motor, and the semicircular gear is meshed with the rack.

[0012] By adopting the above technical scheme, the battery shell is stamped and formed. At this time, the end face of the push rod is flush with the ground of the stamping groove, the top teeth of the semicircular gear and the rack are meshed, the drive motor is started, and the drive motor drives the semicircular gear to rotate, and the semicircular gear and the rack rotate and mesh, so that the push rod rises and the battery shell is pushed out to facilitate the staff to take it. When the push rod rises to the highest point, the semicircular gear and the bottom teeth of the rack are meshed, and the semicircular gear continues to rotate. At this time, the semicircular gear is disengaged from the rack, and the rack loses the support of the semicircular gear. The push rod is reset under the action of gravity and is ready for the next stamping.

[0013] Optionally, a spring is provided at the bottom of the push rod, and one end of the spring is fixed to the stamping platform.

[0014] By adopting the above technical solution, when the semicircular gear is no longer meshed with the rack, the push rod loses the supporting force provided by the semicircular gear. At this time, the push rod returns to its original position due to the tensile force of the spring. The tension of the spring and the gravity of the push rod ensure the rapid resetting of the push rod, preventing the semicircular gear from being unable to mesh with the rack due to jamming during the movement of the push rod.

[0015] Optionally, both sides of the punching table are rotatably connected with pressure rollers, and the side walls of the pressure rollers contact the steel strip raw material.

[0016] By adopting the above technical solution, if the gap between the stamping table and the stamping raw material is too large, the punched material will have too many burrs, and the steel strip raw material used for stamping the battery shell is rolled and placed. When it enters from the feed end of the stamping table, there will be a gap between the stamping table and the stamping table. By setting a pressure roller, the steel strip raw material is pressed tightly against the stamping table, reducing the gap between the steel strip raw material and the stamping table, thereby reducing the possibility of burrs on the round steel sheet obtained after punching.

[0017] Optionally, a movable slide groove is provided below the stamping groove, a movable block is slidably provided in the movable slide groove, the movable block is fitted with a side wall of the movable slide groove, and the movable block is fixedly connected to the push rod.

[0018] By adopting the above technical solution, the movable block moves up and down along the movable slide groove, and the movable block drives the ejector rod and makes the movement process of the ejector rod more stable, thereby preventing the ejector rod from shaking and affecting the normal ejection of the battery shell.

[0019] Optionally, a first cylinder is provided on the frame, a second cylinder is provided on the output shaft of the first cylinder, the stamping part includes a stamping head, the stamping head is arranged at the output end of the second cylinder, a sleeve is provided on the outer sleeve of the stamping head, the sleeve is fixed to the frame, and the stamping head and the sleeve are slidably matched.

[0020] By adopting the above technical scheme, the steel strip raw material is subjected to secondary stamping on the stamping table, the first cylinder drives the second cylinder and the stamping part to move, the sleeve contacts the steel strip raw material and applies pressure, and the steel strip raw material is punched to obtain a round steel sheet, which slides along the guide groove to the stamping groove. At this time, the second cylinder runs to drive the stamping head, and the stamping head stamps the round steel sheet along the direction of the sleeve, and finally the battery shell is obtained, completing the secondary stamping.

[0021] Optionally, a threaded hole is formed on the bottom surface of the punching platform, the threaded hole is connected to the movable slide groove, a cover plate is threadedly connected to the threaded hole, and the spring is fixedly connected to the cover plate.

[0022] By adopting the above technical solution, when the staff wants to replace the spring, rack and push rod, they only need to rotate the cover plate to remove the spring, rack and push rod, which is convenient for the staff to disassemble and replace.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By setting a movable block, a mandrel, a rack, a semicircular gear and a driving motor, the semicircular gear and the rack are meshed with each other. In the initial state, the semicircular gear is meshed with the top teeth of the rack, and the driving motor is started. The driving motor drives the semicircular gear to rotate, and the semicircular gear and the rack rotate and mesh, so that the mandrel rises and the battery shell is pushed out, which is convenient for the staff to take. When the mandrel rises to the highest point, the semicircular gear is meshed with the bottom teeth of the rack, and the semicircular gear continues to rotate. At this time, the semicircular gear is disengaged from the rack, and the rack loses the support of the semicircular gear. The mandrel is reset and ready for the next stamping;

[0025] 2. By setting the first cylinder, the second cylinder, the sleeve and the punching head, the first cylinder is started, and the pneumatic rod of the first cylinder drives the second cylinder and the punching part to move downward to punch out the steel strip raw material, and punch out a round steel sheet from the steel strip raw material for subsequent stamping and forming of the battery shell. Then the second cylinder is started, and the punching head moves downward. At this time, the sleeve contacts the round steel sheet, and the punching head stamps the round steel sheet to make a battery shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of this application.

[0027] Figure 2 It is a cross-sectional view of the guide groove and the punching hole structure in the embodiment of the present application.

[0028] Figure 3 It is a schematic diagram of the ejector structure in an embodiment of the present application.

[0029] Figure 4 It is a cross-sectional view of the stamping part structure in the embodiment of the present application.

[0030] Explanation of the accompanying drawings: 1. Punching table; 2. Pressure roller; 3. Steel strip raw material; 4. Guide groove; 5. Punching groove; 6. Movable slide groove; 7. Through hole; 8. Movable block; 9. Push rod; 10. Driving motor; 11. Semicircular gear; 12. Rack; 13. Spring; 14. Frame; 15. First cylinder; 16. Second cylinder; 17. Reinforcing rib; 18. Punching head; 19. Sleeve; 20. Cover plate. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The present application embodiment discloses a battery shell punching device. Figure 1 A battery shell stamping device includes a stamping table 1. Since the steel strip raw material 3 used for stamping the battery shell is bent and curled, pressure rollers 2 are arranged at the feeding end and the discharging end of the stamping table 1. The two pressure rollers 2 are rotatably connected to the stamping table 1. The length direction of the stamping table 1 is the rolling direction of the pressure rollers 2. The pressure rollers 2 press the steel strip raw material 3 onto the stamping table 1.

[0033] Reference Figure 1 and Figure 2A guide groove 4 is provided on the punching table 1, and a punching groove 5 is provided below the guide groove 4. The diameter of the guide groove 4 is larger than the diameter of the punching groove 5. A frame 14 is fixedly provided above the punching table 1, and a first cylinder 15 is fixedly provided above the frame 14. The output end of the first cylinder 15 is arranged toward the punching table 1, and a second cylinder 16 is fixedly connected to the output end of the first cylinder 15. The top of the second cylinder 16 is fixedly connected to the frame 14. In order to improve the impact strength of the second cylinder 16, a plurality of reinforcing ribs 17 are provided between the first cylinder 15 and the second cylinder 16. A punching part is provided below the second cylinder 16, and the punching part is located directly above the punching groove 5. The punching part includes a punching head 18, and the punching head 18 is fixedly provided on the output shaft of the second cylinder 16. A sleeve 19 is provided on the outer sleeve of the punching head 18, and one end of the sleeve 19 is fixedly connected to the frame 14, and the other end is suspended.

[0034] After the initial stamping of the steel strip raw material 3, a round steel sheet (not shown in the figure) will be obtained. The round steel sheet (not shown in the figure) falls along the guide groove 4 to above the stamping groove 5, and then the round steel sheet (not shown in the figure) is stamped again to obtain a battery shell stamping head 18 and a sleeve 19 that slides together. The sleeve 19 can be inserted into the guide groove 4 and in sliding contact with the guide groove 4, and the stamping head 18 can be inserted into the stamping groove 5 and in sliding contact with the stamping groove 5.

[0035] Reference Figure 1 , Figure 3 and Figure 4 A push-out piece for ejecting the punched battery shell is provided in the stamping groove 5, a movable slide groove 6 is provided below the stamping groove 5, a through hole 7 is provided at the bottom of the stamping groove 5, the through hole 7 is connected to the movable slide groove 6, the push-out piece includes a movable block 8, the movable block 8 is slidably matched with the movable slide groove 6, and the movable block 8 is in contact with the side wall of the movable slide groove 6, a push rod 9 is fixedly connected to the movable block 8, the push rod 9 is arranged in the vertical direction, and the push rod 9 is in sliding contact with the through hole 7. In the initial state, the end of the push rod 9 is flush with the bottom surface of the stamping groove 5, and the push rod 9 can be driven to move in the direction of the through hole 7 by a driving member, and the push rod 9 is slidably matched with the movable slide groove 6 relative to the stamping groove 5.

[0036] Reference Figure 1 , Figure 3 and Figure 4The driving member includes a driving motor 10, which is fixedly connected to one side of the punching table 1. The output shaft of the driving motor 10 is arranged along the width direction of the punching table 1. The output shaft of the driving motor 10 is fixedly connected with a semicircular gear 11. The semicircular gear 11 rotates with the punching table 1. A rack 12 is arranged at the bottom of the movable block 8. The rack 12 is arranged in the vertical direction. The semicircular gear 11 and the rack 12 are meshed with each other. In the initial state, the semicircular gear 11 and the teeth at the top of the rack 12 are meshed with each other. When the semicircular gear 11 rotates half a circle, it is meshed with the teeth at the bottom of the rack 12. When the semicircular gear 11 continues to rotate, it is disengaged from the rack 12. In order to prevent the push rod 9 from being stuck and falling into place quickly during the landing process, the semicircular gear 11 and the rack 12 are correctly meshed when the next action is performed. A spring 13 is fixedly connected to the bottom of the movable block 8, and one end of the spring 13 is fixedly connected to the bottom of the movable slide groove 6.

[0037] Reference Figure 3 In order to facilitate the staff to replace the push-out parts, a cover plate 20 is set under the spring 13, a threaded hole is opened on the bottom surface of the punching table 1, the threaded hole is connected to the movable slide groove 6, the cover plate 20 is threadedly connected to the bottom surface of the punching table 1, and the bottom end of the spring 13 is fixedly connected to the cover plate 20.

[0038] The implementation principle of a battery shell stamping device in the embodiment of the present application is as follows: the staff lays the rolled steel strip raw material 3 for stamping the battery shell to the feed end of the stamping table 1, the steel strip raw material 3 slides along the length direction of the stamping table 1, and is pressed on the stamping table 1 by the pressing roller 2, the steel strip raw material 3 passes above the guide groove 4, and the first cylinder 15 is started. At this time, the pneumatic rod of the first cylinder 15 drives the second cylinder 16 and the stamping part to move downward to punch the steel strip raw material 3. At this time, a circular steel sheet is punched out from the steel strip raw material 3 for subsequent stamping and forming of the battery shell, and then the second cylinder 16 is started, and the punching head 18 moves downward. At this time, the sleeve 19 contacts the circular steel sheet on the stamping groove 5, and the punching head 18 punches and forms the circular steel sheet to make a battery shell;

[0039] At this time, the push rod 9 is flush with the bottom surface of the stamping groove 5, and the battery shell is still in the stamping groove 5. The driving motor 10 is started, driving the semicircular gear 11 to rotate, and the semicircular gear 11 is engaged with the rack 12. The movable block 8 moves upward and prompts the push rod 9 to move upward, lifting the battery shell to facilitate the staff to take out the battery shell. The semicircular gear 11 continues to rotate, and the semicircular gear 11 disengages from the rack 12. At this time, the push rod 9 loses the supporting force of the semicircular gear 11, and is pulled back to its original position by the traction force of the spring 13 to prepare for the next stamping.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A battery shell punching device, characterized in that: The invention comprises a punching platform (1), wherein a frame (14) is provided on the punching platform (1), wherein a punching piece for punching a material is provided in the frame (14), wherein a punching groove (5) is provided on the punching platform (1), wherein the punching groove (5) is located below the punching piece, wherein a push-out piece for pushing out a battery shell is provided in the punching groove (5), wherein the push-out piece comprises a push rod (9), wherein the push rod (9) is inserted into the inside of the punching groove (5) and is slidably matched with the punching groove (5), and wherein a rack ( 12), the rack (12) is arranged along the vertical direction of the push rod (9), a driving member for driving the push rod (9) to move is arranged in the punching table (1), in an initial state, the top of the push rod (9) is flush with the bottom surface of the punching groove (5), the driving member comprises a driving motor (10), the driving motor (10) is arranged on one side of the punching table (1), and a semicircular gear (11) is arranged at the output end of the driving motor (10), and the semicircular gear (11) is meshed with the rack (12).

2. A battery shell punching device according to claim 1, characterized in that: A spring (13) is provided at the bottom of the push rod (9), and one end of the spring (13) is fixed to the punching platform (1).

3. A battery shell punching device according to claim 1, characterized in that: Both sides of the punching platform (1) are rotatably connected with pressure rollers (2), and the side walls of the pressure rollers (2) are in contact with the steel strip raw material (3).

4. A battery shell punching device according to claim 2, characterized in that: A movable slide groove (6) is provided below the punching groove (5), a movable block (8) is slidably provided in the movable slide groove (6), the movable block (8) is in contact with the side wall of the movable slide groove (6), and the movable block (8) is fixedly connected to the push rod (9).

5. A battery shell punching device according to claim 4, characterized in that: The frame (14) is provided with a first cylinder (15), the output shaft of the first cylinder (15) is provided with a second cylinder (16), the stamping part comprises a stamping head (18), the stamping head (18) is arranged at the output end of the second cylinder (16), a sleeve (19) is provided on the outer shell of the stamping head (18), the sleeve (19) is fixed to the frame (14), and the stamping head (18) and the sleeve (19) are slidably matched.

6. A battery shell punching device according to claim 4, characterized in that: A threaded hole is provided on the bottom surface of the punching platform (1), the threaded hole is connected to the movable slide groove (6), a cover plate (20) is threadedly connected inside the threaded hole, and the spring (13) is fixedly connected to the cover plate (20).

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