Lithium ion battery positioning pin device

Abstract

The utility model relates to the technical field of positioning devices, in particular to a lithium ion battery positioning pin device, which comprises a mounting plate, a clamping arm, a driving air cylinder and a positioning component, the clamping arm is rotatably connected with the mounting plate, a mounting part matched with the driving air cylinder is fixedly arranged on one side of the mounting plate, and the positioning component is fixedly connected with the clamping arm. A plug pin air cylinder is fixedly arranged on one side of the mounting plate, and an output shaft of the plug pin air cylinder penetrates through the mounting plate and is connected with the positioning assembly; the clamping arms are arranged to clamp the winding roller, after winding is completed and transposition is completed, the winding roller can be automatically loosened for discharging, the positioning assembly matched with the clamping arms is arranged on the mounting plate to position the clamping arms, the arc-shaped groove matched with the bolt air cylinder is formed in the positioning plate, when an output shaft of the bolt air cylinder retracts, the arc-shaped groove is matched with the bolt air cylinder, and the arc-shaped groove is matched with the bolt air cylinder. And the mounting plate is rotated, the positions of the clamping arms and the winding roller are adjusted under the action of the driving air cylinder, and the winding roller which completes winding can be replaced conveniently during discharging.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning devices, in particular to a lithium-ion battery positioning pin device. Background Art

[0002] Lithium battery slitting is an important production process after mixing, coating, and rolling. It provides material for equipment such as film making and winding. The quality of slitting directly affects the quality of subsequent batteries. It is one of the important links in the entire production process. The lithium-ion battery winding device is a very critical process in the automatic roll-changing slitting machine. The winding shaft is replaced by disengaging the winding shaft that has been wound and replacing it with a new winding shaft to be wound.

[0003] The existing winding machine generally has a double station, and the two stations are located in the same mechanism. A rotating shaft is set between the two stations. When the rotating shaft rotates, the two winding stations rotate around the rotating shaft; when the two winding stations switch with each other, the rotating shaft is rotated to interchange positions to realize automatic roll change and tape splicing. For example, Chinese patent announcement No. CN207774399U discloses a "non-stop double-station winder", in which during the winding process of the first winding mechanism, the first piston rod works, and as the roll diameter of the substrate on the first winding mechanism increases, the pressure roller is driven to retreat until it retreats to the time when the roll needs to be changed. At this time, the first piston rod 1 and the second piston rod are completely retracted, and the pressure roller is completely out of contact with the substrate on the first winding mechanism; the first turntable and the second turntable are linked to each other and rotate 180° clockwise, the first winding mechanism and the second winding mechanism exchange positions, and the substrate first contacts the second adjusting roller, then contacts the second fixed roller, and finally wraps around the second winding mechanism.

[0004] However, in actual use, the weight and volume of the winding roller of the winding mechanism increase after winding is completed, making it inconvenient to unload the material. It is also inconvenient to install a new winding roller, and manual positioning and installation are required to prevent it from being inconsistent with the original position, which increases the burden on workers. Summary of the Invention

[0005] The purpose of the utility model is to solve the shortcomings in the prior art that the weight and volume of the winding roller of the winding mechanism increase after winding is completed, and manual positioning and installation are required to prevent it from being inconsistent with the original position, which increases the burden on workers. A lithium-ion battery positioning pin device is proposed.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A lithium-ion battery positioning pin device is designed, comprising a mounting plate, a clamping arm, a driving cylinder, and a positioning assembly. The clamping arm is rotatably connected to the mounting plate. A mounting portion that cooperates with the driving cylinder is fixedly provided on one side of the mounting plate. A latch cylinder is fixedly provided on one side of the mounting plate. The output shaft of the latch cylinder passes through the mounting plate and is connected to the positioning assembly.

[0008] The positioning assembly includes a positioning plate, the positioning plate is provided with an arc groove matched with the latch cylinder, and the positioning plate is fixedly connected to the clamping arm.

[0009] Furthermore, the positioning plate includes a wear-resistant portion and a connecting seat, and the wear-resistant portion and the connecting seat are connected via a connecting structure.

[0010] Furthermore, the connection structure includes a slot provided on the connection seat, an insert block matching the slot is fixedly provided on the wear-resistant portion, and a limiting assembly matching the insert block is provided in the connection seat.

[0011] Furthermore, the limiting assembly includes a rotating shaft rotatably connected to the connecting seat, a limiting portion is fixedly provided on the rotating shaft, a limiting hole matching the rotating shaft is provided on the connecting seat, and a limiting groove matching the limiting portion is provided in the limiting hole.

[0012] Furthermore, a guide groove cooperating with the limiting portion is provided in the limiting hole, the guide groove is a spiral structure, and a torsion spring is provided between the rotating shaft and the connecting seat.

[0013] Furthermore, a mounting groove is provided in the slot, a spring is provided in the mounting groove, a push plate is fixedly provided on the upper end of the spring, and the upper end of the push plate abuts against the insert block.

[0014] The lithium-ion battery positioning pin device proposed in this utility model has the following beneficial effects:

[0015] In the utility model, a clamping arm is provided to clamp the winding roller. When winding is completed and the position change is completed, the winding roller can be automatically released to unload the material. A positioning assembly that cooperates with the clamping arm is provided on the mounting plate to support and position the clamping arm so that the clamping arm will not deviate from the preset position after the roll is changed, which facilitates the winding of the new winding roller.

[0016] Secondly, in the utility model, an arc-shaped groove that cooperates with the latch cylinder is opened on the positioning plate. When the output shaft of the latch cylinder is retracted, it is separated from the arc-shaped groove, and the mounting plate is rotated. Under the action of the driving cylinder, the position of the clamping arm and the winding roller is adjusted, which facilitates unloading and replacing the winding roller that has been wound up. The winding roller that has been wound up is released by the clamping arm, so that the winding roller can be unloaded. When loading, the new winding roller can be clamped by the clamping arm, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a lithium-ion battery positioning pin device proposed in the utility model;

[0018] Figure 2 This is a schematic structural diagram of the wear-resistant part of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the rotating shaft of the utility model;

[0020] Figure 4 This is a structural diagram of the guide groove of the utility model.

[0021] In the figure: 1. Mounting plate; 2. Clamping arm; 3. Driving cylinder; 4. Positioning assembly; 41. Positioning plate; 411. Wear-resistant portion; 412. Connecting seat; 42. Arc groove; 5. Latch cylinder; 6. Connecting structure; 61. Insert block; 62. Limiting assembly; 621. Rotating shaft; 622. Limiting portion; 623. Torsion spring; 624. Guide groove; 63. Spring; 64. Push plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figure 1-4 , a lithium-ion battery positioning pin device includes a mounting plate 1, a clamping arm 2, a driving cylinder 3 and a positioning assembly 4. The clamping arm 2 is rotatably connected to the mounting plate 1. A mounting portion that cooperates with the driving cylinder 3 is fixedly provided on one side of the mounting plate 1. A latch cylinder 5 is fixedly provided on one side of the mounting plate 1. The output shaft of the latch cylinder 5 passes through the mounting plate 1 and is connected to the positioning assembly 4. The positioning pin locking device positions and fixes the battery electrode during the winding process and after winding, thereby enhancing the stability of the equipment, ensuring balanced force on the outer ring of the coil, neatly collecting the coil, preventing warping, and ensuring the neatness of the coiled material. It can quickly position the coiled material and make it convenient to unwind the material, which is safe and reliable.

[0024] The positioning assembly 4 includes a positioning plate 41, and an arc groove 42 is provided on the positioning plate 41 to cooperate with the latch cylinder 5. The positioning plate 41 is fixedly connected to the clamping arm 2. By setting the arc groove 42 in comparison with the circular hole, the positioning requirements for the circular hole are relatively strict, and the processing accuracy and assembly accuracy are relatively high. When the weight of the winding roller increases, the deformation of the cooperation between the latch cylinder 5 and the positioning plate 41 is aggravated, which is easy to cause jamming, reducing the degree of automation, etc., and brings hidden dangers to operational safety and difficulty in operation. The arc groove 42 can prevent the occurrence of jamming when unwinding while ensuring positioning, thereby ensuring that unloading can proceed smoothly.

[0025] When the material is unloaded, the position of the clamping arm 2 and the winding roller is adjusted under the action of the driving cylinder 3 to facilitate unloading and winding of the winding roller.

[0026] Further, such as Figures 2 to 4 As shown, in this embodiment, the positioning plate 41 includes a wear-resistant portion 411 and a connecting seat 412. The wear-resistant portion 411 and the connecting seat 412 are connected by a connecting structure 6, so that the wear-resistant portion 411 can be removed and replaced after wear, avoiding overall replacement and reducing costs.

[0027] Furthermore, in this embodiment, the connecting structure 6 includes a slot provided on the connecting seat 412, an insert block 61 that cooperates with the slot is fixedly provided on the wear-resistant portion 411, and a limiting component 62 that cooperates with the insert block 61 is provided in the connecting seat 412. By plugging the insert block 61 into the slot, the wear-resistant portion 411 and the connecting seat 412 form an integral structure, which is more stable, and the insert block 61 and the wear-resistant portion 411 are fixed by the limiting component 62 to prevent loosening and falling off.

[0028] It should be noted that, in this embodiment, the limiting assembly 62 includes a rotating shaft 621 rotatably connected to the connecting seat 412, a limiting portion 622 is fixedly arranged on the rotating shaft 621, a limiting hole matching the rotating shaft 621 is provided on the connecting seat 412, and a limiting groove matching the limiting portion 622 is provided in the limiting hole. By inserting the limiting portion 622 on the rotating shaft 621 into the limiting groove in the limiting hole, the plug block 61 is fixed.

[0029] In addition, in this embodiment, a guide groove 624 is provided in the limiting hole and cooperates with the limiting part 622. The guide groove 624 has a spiral structure. A torsion spring 623 is provided between the rotating shaft 621 and the connecting seat 412. When the rotating shaft 621 is inserted into the limiting hole, the limiting part 622 rotates under the action of the guide groove 624, driving the torsion spring 623 to undergo elastic deformation. When the limiting part 622 is inserted into the limiting groove, the torsion spring 623 resets and drives the rotating shaft 621 and the limiting part 622 to rotate, and is misaligned with the guide groove 624, thereby fixing the plug block 61. In some embodiments, the length and width of the plug block 61 are inconsistent, thereby realizing a fool-proof design and facilitating the installation of the wear-resistant part 411.

[0030] In more detail, in some embodiments, an installation groove is opened in the slot, a spring 63 is arranged in the installation groove, a push plate 64 is fixedly provided at the upper end of the spring 63, the upper end of the push plate 64 abuts against the insert block 61, and a polygonal groove is provided at the lower end of the rotating shaft 621, preferably a hexagonal groove or a cross groove, to facilitate the control of the rotation of the rotating shaft 621.

[0031] Working mode: When working, the winding roller is clamped by the clamping arm 2. When the winding is completed, the mounting plate 1 rotates 180 degrees, so that the positions of the two clamping arms 2 are swapped, and the winding roller that has been collected is swapped with the winding roller to be collected. In the working state, the output shaft of the latch cylinder 5 is locked or released with the positioning plate 41. When locked, the pre-pressure is increased, and at the same time, it can withstand a small part of the rebound force, which solves the problems of the beating and eccentric center of gravity of the air shaft, ensuring its stability and reliability during normal operation of the equipment. When unloading, under the action of the driving cylinder 3, the position of the clamping arm 2 and the winding roller is adjusted to facilitate the unloading and winding of the winding roller by the clamping arm 2;

[0032] When installing the wear-resistant part 411, the insert block 61 is plugged into the slot to form an integral structure with the connecting seat 412, which is more stable. The rotating shaft 621 is inserted into the limiting hole, and the limiting part 622 rotates under the action of the guide groove 624, driving the torsion spring 623 to undergo elastic deformation. When the limiting part 622 is inserted into the limiting groove, the torsion spring 623 resets and drives the rotating shaft 621 and the limiting part 622 to rotate, and is misaligned with the guide groove 624, thereby fixing the insert block 61. In some embodiments, the length and width of the insert block 61 are inconsistent, thereby realizing a fool-proof design and facilitating the installation of the wear-resistant part 411.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lithium-ion battery positioning pin device, comprising a mounting plate (1), a clamping arm (2), a driving cylinder (3) and a positioning assembly (4), characterized in that: The clamping arm (2) is rotatably connected to the mounting plate (1), a mounting portion that cooperates with the driving cylinder (3) is fixedly provided on one side of the mounting plate (1), a latch cylinder (5) is fixedly provided on one side of the mounting plate (1), and an output shaft of the latch cylinder (5) passes through the mounting plate (1) and is connected to the positioning assembly (4); The positioning assembly (4) comprises a positioning plate (41), the positioning plate (41) is provided with an arc-shaped groove (42) that matches the latch cylinder (5), and the positioning plate (41) is fixedly connected to the clamping arm (2).

2. The lithium-ion battery positioning pin device according to claim 1, characterized in that: The positioning plate (41) comprises a wear-resistant portion (411) and a connecting seat (412), and the wear-resistant portion (411) and the connecting seat (412) are connected via a connecting structure (6).

3. The lithium-ion battery positioning pin device according to claim 2, characterized in that: The connecting structure (6) includes a slot provided on the connecting seat (412), an insert block (61) matching the slot is fixedly provided on the wear-resistant portion (411), and a limiting assembly (62) matching the insert block (61) is provided in the connecting seat (412).

4. The lithium-ion battery positioning pin device according to claim 3, characterized in that: The limiting assembly (62) includes a rotating shaft (621) rotatably connected to the connecting seat (412), a limiting portion (622) is fixedly provided on the rotating shaft (621), a limiting hole matching the rotating shaft (621) is provided on the connecting seat (412), and a limiting groove matching the limiting portion (622) is provided in the limiting hole.

5. The lithium-ion battery positioning pin device according to claim 4, characterized in that: A guide groove (624) matching the limit portion (622) is provided in the limit hole, the guide groove (624) being a spiral structure, and a torsion spring (623) is provided between the rotating shaft (621) and the connecting seat (412).

6. The lithium-ion battery positioning pin device according to any one of claims 3 to 5, characterized in that: A mounting groove is provided in the slot, a spring (63) is provided in the mounting groove, a push plate (64) is fixedly provided at the upper end of the spring (63), and the upper end of the push plate (64) abuts against the insert block (61).

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