Pole piece alignment device

Abstract

The utility model discloses a pole piece alignment device which comprises an adsorption plate, and a pole piece is adsorbed on the adsorption plate. The adsorption plate is connected with the alignment unit, the alignment unit comprises a first driving part, a second driving part and a third driving part, the first driving part can drive the adsorption plate to rotate in the first direction, the second driving part can drive the first driving part to reciprocate in the second direction, and the third driving part can drive the second driving part to reciprocate in the third direction; the detection unit comprises an image acquisition part; the image acquisition part can acquire an image of the pole piece on the adsorption plate. The alignment unit can adjust the positions of the pole pieces in the first direction, the second direction and the third direction, so that the pole pieces with correct postures can be adsorbed in the subsequent process; the image acquisition part of the detection unit can acquire the image of the pole piece on the adsorption plate, and whether the position posture of the pole piece is correct or not is judged through analysis, so that the alignment precision and the working efficiency are improved, and the safety performance of the battery is improved.

Description

Technical Field

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

[0002] At present, the manufacturing of lithium-ion battery cells requires the positive and negative electrodes to be stacked alternately. Before the electrodes are stacked, they need to be positioned. The alignment of the electrode core and the electrode directly affects the safety performance and capacity of the lithium-ion battery. However, the alignment accuracy of the electrode alignment device used in the prior art is low, which in turn affects the safety of the lithium battery. Utility Model Content

[0003] The utility model aims to provide a pole piece alignment device to solve the problems in the prior art and improve the pole piece alignment accuracy.

[0004] The utility model provides a pole piece alignment device, comprising:

[0005] An adsorption plate, on which the electrode piece is adsorbed;

[0006] an alignment unit, the adsorption plate is connected to the alignment unit, the alignment unit comprises a first driving unit, a second driving unit and a third driving unit, the first driving unit can drive the adsorption plate to rotate along a first direction, the second driving unit can drive the first driving unit to reciprocate along a second direction, and the third driving unit can drive the second driving unit to reciprocate along a third direction;

[0007] The detection unit includes an image acquisition unit, and the image acquisition unit can acquire the image of the pole piece on the adsorption plate.

[0008] In the pole piece alignment device as described above, preferably, the first driving part comprises a first motor, and an output shaft end of the first motor is connected to the adsorption plate.

[0009] A pole piece alignment device as described above, wherein preferably, the second driving part includes a second motor, a first connecting member, a first guide rail and a first slider matching the first guide rail, one side of the first connecting member is connected to the first motor, and the other side is connected to the second motor, and the first slider is arranged on the first connecting member.

[0010] A pole piece alignment device as described above, wherein preferably, the third driving part includes a third motor, a second connecting member, a second guide rail and a second slider matching the second guide rail, one side of the second connecting member is connected to the second motor, the other side of the second connecting member is connected to the third motor, and the second slider is arranged on the second connecting member.

[0011] In the pole piece alignment device as described above, preferably, the detection unit further includes a fourth driving unit, and the fourth driving unit can drive the image acquisition unit to reciprocate along the third direction.

[0012] A pole piece alignment device as described above, wherein preferably, the fourth driving part includes a fourth motor, a third connecting member, a third guide rail and a third slider matched with the third guide rail, the image acquisition part is arranged on one side of the third connecting member, the other side of the third connecting member is connected to the fourth motor, and the third slider is arranged on the third connecting member.

[0013] In the pole piece alignment device as described above, preferably, the detection unit further includes a lifting part, and the lifting part can drive the image acquisition part to move along the fourth direction.

[0014] Compared with the prior art, the alignment unit of the utility model can adjust the position of the pole piece in the first direction, the second direction and the third direction, so that the subsequent process can adsorb the pole piece with the correct posture; the image acquisition part of the detection unit can capture the image of the pole piece on the adsorption plate, and judge whether the position and posture of the pole piece is correct by analysis, which is conducive to improving the alignment accuracy and work efficiency, and thus improving the safety performance of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an axonometric diagram of the pole piece alignment device provided in the embodiment of the utility model;

[0016] Figure 2 It is a front view of the pole piece alignment device provided by an embodiment of the utility model;

[0017] Figure 3 is an axonometric diagram of a first driving unit provided in an embodiment of the utility model;

[0018] Figure 4 is an axonometric diagram of the second driving unit provided in an embodiment of the utility model;

[0019] Figure 5 It is an isometric view of the third driving unit provided in the embodiment of the utility model;

[0020] Figure 6 is an isometric view of the fourth driving unit provided in the embodiment of the utility model;

[0021] Figure 7 It is an axonometric diagram of the lifting part provided by the embodiment of the utility model.

[0022] Description of reference numerals:

[0023] 10- adsorption plate;

[0024] 20-alignment unit, 21-first driving part, 211-first motor, 22-second driving part, 221-second motor, 222-first connecting member, 223-first guide rail, 224-first slider, 23-third driving part, 231-third motor, 232-second connecting member, 233-second guide rail, 234-second slider;

[0025] 30-detection unit, 31-image acquisition unit, 311-camera, 312-light source, 32-fourth driving unit, 321-fourth motor, 322-third connecting member, 323-third guide rail, 324-third slider, 33-lifting unit, 331-lifting rod, 332-fixing plate, 333-fixing bolt;

[0026] D1-first direction, D2-second direction, D3-third direction, D4-fourth direction. DETAILED DESCRIPTION

[0027] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] Reference Figure 1 as well as Figure 2 As shown, the utility model provides a pole piece alignment device, including an adsorption plate 10, an alignment unit 20 and a detection unit 30, wherein:

[0029] The pole piece is adsorbed on the adsorption plate 10 , and the alignment device of the present application adjusts the position of the pole piece by adjusting the position of the adsorption plate 10 .

[0030] The adsorption plate 10 is connected to the alignment unit 20, and the alignment unit 20 includes a first drive unit 21, a second drive unit 22 and a third drive unit 23. The first drive unit 21 can drive the adsorption plate 10 to rotate along the first direction D1, the second drive unit 22 can drive the first drive unit 21 to reciprocate along the second direction D2, and the third drive unit 23 can drive the second drive unit 22 to reciprocate along the third direction D3. In the embodiment provided by the present application, the first direction D1 is a rotation in a horizontal plane with the center point of the adsorption plate 10 as the center of the circle, the second direction D2 is a horizontal front-to-back direction, and the third direction D3 is a horizontal left-to-right direction. The position of the pole piece in the horizontal plane can be adjusted by the second drive unit 22 and the third drive unit 23, and the position of the pole piece in the horizontal plane can be fine-tuned by the rotation of the first drive unit 21 to meet the posture required when the pole piece enters the next station.

[0031] The detection unit 30 includes an image acquisition unit 31, which can acquire the image of the pole piece on the adsorption plate 10. In order to understand whether the pole piece position meets the posture required by the next workstation after adjustment, the image acquisition unit 31 acquires the image of the pole piece on the adsorption plate 10, and then judges and analyzes whether it meets the requirements. If not, the alignment unit 20 can continue to be used to adjust the position of the adsorption plate 10 until it meets the posture required by the next workstation. In the embodiment provided in the present application, four image acquisition units 31 are provided, which are respectively arranged at the four corners of the adsorption plate 10. The image acquisition unit 31 includes a camera 311 and a light source 312. Each camera 311 simultaneously acquires the image of the same pole piece. By analyzing the images of the same pole piece at different angles, it can be known whether the position of the pole piece meets the requirements for entering the next workstation.

[0032] Reference Figure 3 As shown, the first driving unit 21 includes a first motor 211, and the output shaft end of the first motor 211 is connected to the adsorption plate 10. When the first motor 211 is started, it can drive the adsorption plate 10 to rotate in a horizontal plane to achieve fine adjustment of the position of the adsorption plate 10.

[0033] Reference Figure 4 As shown, the second driving part 22 includes a second motor 221, a first connecting member 222, a first guide rail 223 and a first slider 224 matched with the first guide rail 223. One side of the first connecting member 222 is connected to the first motor 211, and the other side is connected to the second motor 221. The first slider 224 is arranged on the first connecting member 222. In the embodiment provided in the present application, the first motor 211 is fixed to the upper end of the first connecting member 222, and the lower end of the first connecting member 222 is connected to the output shaft end of the second motor 221. There are two first guide rails 223 and two first sliders 224. The two second sliders 234 are arranged on opposite sides of the bottom of the first connecting member 222. The two first guide rails 223 are arranged on both sides of the second motor 221. When the second motor 221 is started, the first connecting member 222 is driven to move in the horizontal front-to-back direction through the cooperation between the first guide rail 223 and the first slider 224, thereby realizing the movement of the adsorption plate 10 in the horizontal front-to-back direction.

[0034] Reference Figure 5As shown, the third driving part 23 includes a third motor 231, a second connecting member 232, a second guide rail 233 and a second slider 234 matched with the second guide rail 233, one side of the second connecting member 232 is connected to the second motor 221, the other side of the second connecting member 232 is connected to the third motor 231, and the second slider 234 is arranged on the second connecting member 232. In the embodiment provided in the present application, the second connecting member 232 is a plate body, the second motor 221 is arranged on the top of the plate body, the output shaft end of the third motor 231 is connected to the bottom surface of the plate body, and two second guide rails 233 and second sliders 234 are provided. The two second sliders 234 are arranged on opposite sides of the bottom surface of the plate body, and the second guide rails 233 are arranged on both sides of the third motor 231. When the third motor 231 is started, with the cooperation of the second guide rails 233 and the second sliders 234, the second connecting member 232 can move in the horizontal left and right directions, thereby driving the second driving part 22 and the first driving part 21 to move in the horizontal left and right directions at the same time, thereby realizing the movement of the adsorption plate 10 in the horizontal left and right directions.

[0035] Reference Figure 6 As shown, the detection unit 30 also includes a fourth driving unit 32, which can drive the image acquisition unit 31 to reciprocate along the third direction D3. In the embodiment provided in the present application, the fourth driving unit 32 includes a fourth motor 321, a third connecting member 322, a third guide rail 323, and a third slider 324 matched with the third guide rail 323, the image acquisition unit 31 is arranged on one side of the third connecting member 322, the other side of the third connecting member 322 is connected to the fourth motor 321, and the third slider 324 is arranged on the third connecting member 322. The third connecting member 322 is also a plate body, and the image acquisition unit 31 is arranged on the top of the plate body. The output end of the fourth motor 321 is connected to the bottom surface of the plate body. There are two third guide rails 323 and two third sliders 324. The two third sliders 324 are arranged on opposite sides of the bottom surface of the plate body. The two third guide rails 323 are arranged on both sides of the fourth motor 321. When the fourth motor 321 is started, with the cooperation of the third guide rails 323 and the third sliders 324, the third connecting member 322 can reciprocate in the horizontal left and right directions, thereby driving the image acquisition unit 31 to move left and right, thereby realizing the acquisition of images of different angles of the pole piece.

[0036] In order to be able to collect images of the pole piece at more angles and positions, the detection unit 30 also includes a lifting part 33, and the lifting part 33 can drive the image acquisition part 31 to move along the fourth direction D4. In the embodiment provided in the present application, the fourth direction D4 is the gravity direction, and the lifting part 33 drives the image acquisition part 31 to move up and down along the gravity direction, so that more images can be collected. During the alignment process, the positions of the four image acquisition parts 31 can be adjusted at the same time, or only one or several of them can be adjusted to ensure a more accurate judgment of the pole piece position, thereby improving the alignment accuracy and improving work efficiency.

[0037] In a feasible implementation mode, referring to Figure 7 As shown, the lifting part 33 includes a lifting rod 331, a fixing plate 332 and a fixing bolt 333. The fixing plate 332 includes a first plate and a second plate. The first plate is fixed to the third connecting member 322. The second plate is arranged opposite to the first plate and can move relatively. The second plate is connected to the image acquisition part 31. The lifting rod 331 is arranged on the side of the first plate. A stopper is arranged on the side of the second plate. A plurality of bolt holes are arranged on the other side of the second plate. When it is necessary to adjust the height of the image acquisition part 31, the second plate is moved up or down relative to the first plate to a required position, and then the position of the lifting rod 331 is manually adjusted until the top end of the lifting rod 331 is against the stopper, and then the fixing bolt 333 is screwed into the corresponding bolt hole, thereby fixing the first plate and the second plate. The height of the image acquisition part 31 is adjusted.

[0038] The above describes in detail the structure, features and effects of the utility model based on the embodiments shown in the drawings. The above is only a preferred embodiment of the utility model, but the utility model is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the utility model, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and the drawings, should be within the protection scope of the utility model.

Claims

1. A pole piece alignment device, characterized in that: include: An adsorption plate, on which the electrode piece is adsorbed; an alignment unit, the adsorption plate is connected to the alignment unit, the alignment unit comprises a first driving unit, a second driving unit and a third driving unit, the first driving unit can drive the adsorption plate to rotate along a first direction, the second driving unit can drive the first driving unit to reciprocate along a second direction, and the third driving unit can drive the second driving unit to reciprocate along a third direction; The detection unit includes an image acquisition unit, and the image acquisition unit can acquire the image of the pole piece on the adsorption plate.

2. The pole piece alignment device according to claim 1, characterized in that: The first driving unit includes a first motor, and an output shaft end of the first motor is connected to the adsorption plate.

3. The pole piece alignment device according to claim 2, characterized in that: The second driving part includes a second motor, a first connecting member, a first guide rail and a first slider matched with the first guide rail. One side of the first connecting member is connected to the first motor, and the other side is connected to the second motor. The first slider is arranged on the first connecting member.

4. The pole piece alignment device according to claim 3, characterized in that: The third driving part includes a third motor, a second connecting member, a second guide rail and a second slider matched with the second guide rail, one side of the second connecting member is connected to the second motor, the other side of the second connecting member is connected to the third motor, and the second slider is arranged on the second connecting member.

5. The pole piece alignment device according to claim 1, characterized in that: The detection unit further includes a fourth driving unit, and the fourth driving unit can drive the image acquisition unit to reciprocate along the third direction.

6. The pole piece alignment device according to claim 5, characterized in that: The fourth driving unit includes a fourth motor, a third connecting member, a third guide rail and a third slider matched with the third guide rail. The image acquisition unit is arranged on one side of the third connecting member, and the other side of the third connecting member is connected to the fourth motor. The third slider is arranged on the third connecting member.

7. The pole piece alignment device according to claim 1, characterized in that: The detection unit further includes a lifting part, and the lifting part can drive the image acquisition part to move along a fourth direction.

Images