Battery cell pole piece dislocation shearing device

Abstract

The utility model relates to the technical field of battery cell processing, in particular to a battery cell pole piece dislocation shearing device which comprises a frame, a first motor is arranged at the top in the frame, a first cam is fixedly installed at the output end of one side of the first motor through a flat key, and a second motor is arranged at the top in the frame far away from the first motor. A second cam is fixed to an output shaft on one side of the second motor through a flat key, a first tetragonal prism is slidably connected to the portion, located in the bottom of the second cam, of the frame through a sliding groove, and a second tetragonal prism is fixedly installed in the portion, located in the bottom of the first tetragonal prism, of the frame. Before the pole piece is sheared, the two sides of the shearing line are firmly pressed by the first tetragonal prism, the second tetragonal prism, the fourth tetragonal prism and the third tetragonal prism, and when dislocation occurs, the edge of a fracture is still in a pressed state, so that breakage of the sheared fracture and generation of burrs are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core processing, in particular to a battery core pole piece dislocation shearing device. Background Art

[0002] During the manufacturing process of soft-pack lithium batteries, they are processed by the Z-shaped stacking method, which requires the positive and negative electrodes to be cut into equal sizes. When the electrodes are cut, the edges of the cuts are in hard contact with the cutter, causing damage to the edges of the electrodes and many burrs on the edges, which reduces the service life of the lithium battery. Therefore, a cell electrode offset shearing device is proposed, which can clean the slurry outlet holes inside the grouting device, and after pressing the cell electrode, the electrode is sheared in an offset manner to reduce the degree of cross-sectional damage and the number of burrs. Utility Model Content

[0003] In view of the problems in the prior art, the utility model provides a device for shearing the pole piece of a battery cell in an offset manner, which can reduce the degree of cross-sectional damage and the number of burrs by pressing the pole piece of the battery cell.

[0004] The technical solution adopted by the utility model to solve its technical problems is a battery cell pole piece dislocation shearing device, comprising a frame, a first motor is arranged at the top of the frame, a first cam is fixedly installed at one output end of the first motor through a flat key, a second motor is arranged at the top of the frame away from the first motor, a second cam is fixedly installed at one output shaft of the second motor through a flat key, a first square column is slidably connected to the inside of the frame at the bottom of the second cam through a sliding groove, and a second square column is fixedly installed at the inside of the frame at the bottom of the first square column;

[0005] The frame is located on one side of the second square column and is slidably connected to a third square column through a slide groove. The third motor is embedded in the top two ends of the third square column through slots. The top output shaft of the third motor is connected to a threaded rod through a connecting sleeve. The fourth square column is provided on the outer side of the threaded rod through a threaded groove sleeve.

[0006] By adopting the above technical solution, the second motor drives the second cam to rotate and push the first square column to move downward to clamp the pole piece, and the third motor drives the threaded rod to rotate and move the fourth square column to move downward to clamp the pole piece;

[0007] The first motor drives the first cam to rotate and push the fourth square column and the third square column to move downward, so that the originally clamped pole piece is misaligned and thus cut into two sections.

[0008] Specifically, the inner bottom of the frame is equidistantly connected with a limiting rod through a threaded groove, and the top end of the limiting rod is sleeved in a groove at the bottom of the third square column.

[0009] By adopting the above technical solution, the limiting rod is used to limit the third square column.

[0010] Specifically, a lower spring is fixed to the inner bottom of the frame located outside the limiting rod by bolts, and the top of the lower spring is fixed to the bottom of the third square column by bolts.

[0011] Specifically, the first motor and the second motor are relatively mounted on the top of the frame through a mounting frame.

[0012] Specifically, upper springs are fixed to both ends of the top of the first square column by bolts, and the top of the upper spring is fixed to the top of the frame by bolts.

[0013] Specifically, two ends of the third square column on one side close to the second square column are slidably installed in the grooves on the second square column through T-shaped sliding pieces.

[0014] Specifically, two ends of the fourth square column on one side close to the first square column are slidably installed in the grooves on the first square column through T-shaped sliding pieces.

[0015] Beneficial effects of the utility model:

[0016] (1) The utility model discloses a device for shearing a dislocated electrode piece of a battery cell. Before the electrode piece is sheared, both sides of the shearing line are firmly pressed by the first square pillar, the second square pillar, the fourth square pillar and the third square pillar. When dislocation occurs, the edge of the fracture is still in a compressed state, thereby reducing the breakage of the shear fracture and the generation of burrs.

[0017] (2) The utility model describes a device for shearing a dislocated pole piece of a battery cell. The second motor drives the second cam to rotate and push the first square column to move downward to clamp the pole piece. The third motor drives the threaded rod to rotate and move the fourth square column to move downward to clamp the pole piece. The first motor drives the first cam to rotate and push the fourth square column and the third square column to move downward, so that the originally clamped pole piece is dislocated and sheared into two sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of the frame of the utility model;

[0021] Figure 3 It is a cross-sectional view of the third and fourth square pillars of the utility model;

[0022] In the figure: 1. frame; 2. first motor; 3. first cam; 4. second cam; 5. second motor; 6. upper spring; 7. first square column; 8. threaded rod; 9. fourth square column; 10. third motor; 11. third square column; 12. lower spring; 13. limit rod; 14. second square column. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] After the battery cell pole piece is compressed, the pole piece is sheared in a staggered manner to reduce the degree of cross-section damage and the number of burrs, such as Figure 1-3 As shown, a cell pole piece dislocation shearing device described in the utility model comprises a frame 1, a first motor 2 is arranged at the top of the frame 1, a first cam 3 is fixedly installed at one output end of the first motor 2 through a flat key, a second motor 5 is arranged at the top of the frame 1 away from the first motor 2, a second cam 4 is fixedly installed at one output shaft of the second motor 5 through a flat key, a first square column 7 is slidably connected to the inside of the frame 1 at the bottom of the second cam 4 through a slide groove, and a second square column 14 is fixedly installed at the inside of the frame 1 at the bottom of the first square column 7;

[0025] The frame 1 is located on one side of the second square column 14 and is slidably connected to a third square column 11 through a slide groove. The third motor 10 is embedded in the top two ends of the third square column 11 through slots. The top output shaft of the third motor 10 is connected to a threaded rod 8 through a connecting sleeve. The outer side of the threaded rod 8 is provided with a fourth square column 9 through a threaded groove sleeve.

[0026] When in use, the second motor 5 drives the second cam 4 to rotate and push the first square column 7 to move downward to clamp the pole piece, and the third motor 10 drives the threaded rod 8 to rotate and move the fourth square column 9 to move downward to clamp the pole piece;

[0027] The first motor 2 drives the first cam 3 to rotate and push the fourth square column 9 and the third square column 11 to move downward, so that the originally clamped pole piece is misaligned and thus sheared into two sections.

[0028] For example, Figure 3 As shown, the utility model also includes that the bottom of the frame 1 is equidistantly connected with a limiting rod 13 through a threaded groove, and the top end of the limiting rod 13 is sleeved in a groove at the bottom of the third square column 11.

[0029] When in use, the limiting rod 13 is used to limit the third square column 11 .

[0030] For example, Figure 3As shown, the utility model also includes that the inner bottom of the frame 1 located outside the limiting rod 13 is fixed with a lower spring 12 by bolts, and the top of the lower spring 12 is fixed to the bottom of the third square column 11 by bolts.

[0031] When in use, the lower spring 12 can push the third square column 11 upward.

[0032] For example, Figure 2 As shown, the utility model also includes that the first motor 2 and the second motor 5 are relatively installed on the top of the frame 1 through a mounting frame.

[0033] When in use, it is convenient to drive the second cam 4 and the first cam 3 to rotate, so as to push the first square column 7 and the fourth square column 9 to move downward.

[0034] For example, Figure 1 , Figure 2 As shown, the utility model also includes that upper springs 6 are fixed to the top ends of the first square column 7 by bolts, and the top of the upper spring 6 is fixed to the top of the frame 1 by bolts.

[0035] When in use, the upper spring 6 can pull the first square column 7 that has moved downward to move upward and reset.

[0036] For example, Figure 1 , Figure 2 As shown, the utility model also includes that two ends of one side of the third square column 11 close to the second square column 14 are slidably installed in the grooves on the second square column 14 through T-shaped sliding pieces.

[0037] When in use, the second square pillar 14 can move up and down on one side of the third square pillar 11, which improves the connection stability between the third square pillar 11 and the second square pillar 14 without affecting the up and down movement of the second square pillar 14.

[0038] For example, Figure 1 , Figure 2 As shown, the utility model also includes that two ends of the fourth square column 9 close to the first square column 7 are slidably installed in the grooves on the first square column 7 through T-shaped sliding pieces.

[0039] When in use, the fourth square pillar 9 can move up and down on one side of the first square pillar 7, which improves the connection stability between the fourth square pillar 9 and the first square pillar 7 without affecting the up and down movement of the fourth square pillar 9.

[0040] When the utility model is in use, the lower spring 12 pushes the third square column 11 upwards, and the third square column 11 is pulled by the limiting rod 13, so that the third square column 11 and the second square column 14 are on the same horizontal plane;

[0041] The pole piece to be sheared is transported to the third square column 11 and the second square column 14. The connection between the third square column 11 and the second square column 14 is the shearing position of the pole piece. The second motor 5 is started, and the second motor 5 drives the second cam 4 to rotate, so that the convex position of the second cam 4 rotates downward to push the first square column 7 downward to clamp the pole piece. At the same time, the third motor 10 is started, and the third motor 10 drives the threaded rod 8 to rotate. The threaded rod 8 is threadedly connected with the fourth square column 9. At this time, the fourth square column 9 descends to clamp the pole piece;

[0042] Finally, the first motor 2 is started, and the first motor 2 drives the first cam 3 to rotate, so that the convex position of the first cam 3 is pressed downward to quickly push the fourth square column 9. At this time, the fourth square column 9 and the third square column 11 can be regarded as a whole and move downward at the same time, so that the originally clamped pole piece is misaligned, thereby being sheared into two sections;

[0043] The second cam 4 is reset, and the upper spring 6 pulls up the first square column 7. After the first cam 3 is separated from the fourth square column 9, the lower spring 12 pushes the third square column 11 upward to restore the position of the third square column 11. The third motor 10 drives the threaded rod 8 to rotate to lift the fourth square column 9, so that the sheared pole piece can be taken out;

[0044] Because both sides of the shearing line are firmly pressed by the first square column 7, the second square column 14, the fourth square column 9 and the third square column 11 before the pole piece is sheared, when misalignment occurs, the edge of the fracture is still in a compressed state, thereby reducing the breakage of the shear fracture and the generation of burrs.

[0045] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A battery cell pole piece dislocation shearing device, characterized in that: The invention comprises a frame (1), wherein a first motor (2) is arranged at the top of the frame (1), a first cam (3) is fixedly installed at an output end of one side of the first motor (2) via a flat key, a second motor (5) is arranged at the top of the frame (1) away from the first motor (2), a second cam (4) is fixedly installed at an output shaft of one side of the second motor (5) via a flat key, a first square column (7) is slidably connected to the inside of the frame (1) at the bottom of the second cam (4) via a sliding groove, and a second square column (14) is fixedly installed at the inside of the frame (1) at the bottom of the first square column (7); The frame (1) is located on one side of the second square column (14) and is slidably connected to a third square column (11) through a sliding groove. A third motor (10) is embedded at both ends of the top of the third square column (11) through a clamping groove. The top output shaft of the third motor (10) is connected to a threaded rod (8) through a connecting sleeve. A fourth square column (9) is provided on the outside of the threaded rod (8) through a threaded groove sleeve.

2. The battery cell pole piece dislocation shearing device according to claim 1, characterized in that: The inner bottom of the frame (1) is equidistantly connected to a limiting rod (13) via a threaded groove, and the top end of the limiting rod (13) is sleeved in a groove at the bottom of the third square column (11).

3. The battery cell pole piece dislocation shearing device according to claim 1, characterized in that: The inner bottom of the frame (1) located outside the limiting rod (13) is fixed with a lower spring (12) by bolts, and the top end of the lower spring (12) is fixed to the bottom of the third square column (11) by bolts.

4. The battery cell pole piece dislocation shearing device according to claim 1, characterized in that: The first motor (2) and the second motor (5) are both relatively mounted on the top of the frame (1) via a mounting frame.

5. The battery cell pole piece dislocation shearing device according to claim 1, characterized in that: An upper spring (6) is fixed to both ends of the top of the first square column (7) by means of bolts, and the top of the upper spring (6) is fixed to the top of the frame (1) by means of bolts.

6. The battery cell pole piece dislocation shearing device according to claim 1, characterized in that: The two ends of the third square column (11) on one side close to the second square column (14) are slidably installed in the grooves on the second square column (14) through T-shaped sliding pieces.

7. The battery cell pole piece dislocation shearing device according to claim 1, characterized in that: The two ends of the fourth square column (9) on one side close to the first square column (7) are slidably installed in the grooves on the first square column (7) through T-shaped sliding pieces.

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