CN219416098U

CN219416098U - Tab height measuring device

Info

Publication number: CN219416098U
Application number: CN202223485034.3U
Authority: CN
Inventors: 张有恒; 李天兵; 邢慢
Original assignee: China Lithium Battery Technology Co Ltd
Current assignee: China Lithium Battery Technology Co Ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-07-25
Anticipated expiration: 2032-12-26

Abstract

The utility model relates to the technical field of batteries and discloses a tab height measuring device which comprises a detecting table, a positioning module and a measuring module, wherein the positioning module and the measuring module are arranged on the detecting table. The detection platform is provided with an operation station, and the operation station is used for placing the pole piece to be tested. The positioning module comprises a vacuum generator and a plurality of adsorption holes, wherein the vacuum generator is arranged on the detection table and used for forming negative pressure at the adsorption holes, and the adsorption holes are used for adsorbing the pole pieces. The measuring module comprises a height measuring sensor, the orthographic projection of the height measuring sensor on the operation station and the plurality of adsorption holes are arranged along a first direction, the height measuring sensor can move along a second direction relative to the detection table, the second direction is perpendicular to the first direction, the first direction and the second direction are positioned in a first plane, and the first plane is parallel to the operation station. The tab height measuring device disclosed by the utility model can improve the measuring accuracy of tab height.

Description

Tab height measuring device

Technical Field

The utility model relates to the technical field of batteries, in particular to a tab height measuring device.

Background

After the pole coil is sliced, the pole lugs at two sides can warp upwards under the action of residual stress, and the distance between the highest point of the warping and the horizontal plane is defined as the warping height. The less the tab is in tension, the greater the warp height. Under the condition of no reliable measuring tool detection, the stretching effect can be confirmed only by visual observation, the operators can confirm that the difference is large, and the warping height exceeds the standard easily caused by errors, so that the whole roll is scrapped.

Disclosure of Invention

The utility model provides a tab height measuring device which can avoid errors caused by manual operation and improve measuring accuracy.

In order to achieve the above purpose, the utility model provides a tab height measuring device, which comprises a detection table, a positioning module and a measuring module, wherein the positioning module and the measuring module are both arranged on the detection table;

the detection table is provided with an operation station, and the operation station is used for placing a pole piece to be tested;

the positioning module comprises a vacuum generator and a plurality of adsorption holes, wherein the vacuum generator is arranged on the detection table and is used for forming negative pressure at the adsorption holes, and the adsorption holes are used for adsorbing the pole pieces;

the measuring module comprises a height measurement sensor, the orthographic projection of the height measurement sensor on the operation station and the orthographic projections of the plurality of adsorption holes on the operation station are arranged along a first direction, the height measurement sensor can move along a second direction relative to the detection table, the second direction is perpendicular to the first direction, the first direction and the second direction are positioned in a first plane, and the first plane is parallel to the operation station.

The tab height measuring device provided by the utility model is provided with the adsorption hole and the height measuring sensor. The adsorption holes can adsorb the pole pieces, so that the coating area can be horizontally placed on the detection table, and errors in the measurement of the pole lugs caused by bending of the coating area in the process of measuring the pole lugs are avoided. When the height measurement sensor moves along the second direction, the height of each part of the tab can be measured, so that the height of the tab can be accurately output, and the measurement accuracy is improved. Because the height measurement sensor is used for measuring the height of the tab, and the adsorption holes and the height measurement sensor are arranged along the first direction, the adsorption of the Kong Duiji tab area can be avoided, and the measurement accuracy can be further improved.

Drawings

FIG. 1 is a schematic view of a device for measuring tab height according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of the adsorption hole in fig. 1.

In the figure:

100-detecting a platform; 200-pole pieces; 210-electrode lugs; 220-a coating zone; 300-adsorption holes; 400-vacuum generator; 500-height measurement sensor; 600-bracket; 610-a mounting portion; 611-a guide rail; 612-sliding blocks; 620-a support; 700-drive device.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, the height measuring device for the tab 210 in the embodiment of the utility model may include a detecting table 100, a positioning module and a measuring module, wherein the positioning module and the measuring module are disposed on the detecting table 100. The inspection station 100 is provided with an operating station that can be used to place the pole piece 200 to be tested. Pole piece 200 may include tab 210 and coating region 220, tab 210 being attached to one side of coating region 220. And, when the pole piece 200 is placed at the operation station, the tab 210 and the coating area 220 are aligned along the first direction.

The positioning block module may include a vacuum generator 400 provided to the inspection station 100 and a plurality of suction holes 300, the plurality of suction holes 300 being located at an operation station, which may be understood as a plane for placing the pole piece 200, opposite to the coating area 220. Illustratively, the adsorption hole 300 may be a vacuum adsorption hole. The vacuum generator 400 may include a vacuum chamber (not shown) that may be located inside the inspection stage 100 and communicate with the plurality of adsorption holes 300, and a suction device (not shown) that may communicate with the vacuum chamber for sucking gas in the vacuum chamber away so that negative pressure is formed at the adsorption holes 300. When the pole piece 200 is placed at the operation station, the pole piece 200 can be flattened under the action of the adsorption hole 300 and cling to the surface of the detection table 100.

When the pole piece 200 is placed at the operation station, the coating area 220 can completely cover all the adsorption holes 300, that is, each adsorption hole 300 can play a role in adsorbing and positioning the coating area 220, so that the waste of resources is avoided. In addition, the plurality of adsorption holes 300 may be uniformly provided so that the adsorption force to the pole piece 200 may be uniform, preventing the pole piece 200 from being damaged.

In some embodiments, the number of the adsorption holes 300 may be five, and the five adsorption holes 300 may be respectively distributed at four corners and a center position of the coating region 220 of the pole piece 200, so that the coating region 220 can be ensured to be sufficiently adsorbed. Of course, five adsorption holes are merely illustrative, and it is understood that the greater the number of adsorption holes 300, the better the adsorption effect of the coating zone 220 can be. Also, when a plurality of adsorption holes 300 are provided, five of the adsorption holes 300 may be aligned to the four corners and the center position of the coating region 220. Alternatively, the four corners and the center of the coating region 220 may be respectively provided with adsorption regions, each of which is distributed with a plurality of adsorption holes 300, so that the coating region 220 is sufficiently adsorbed.

In other embodiments, the plurality of adsorption holes 300 may be distributed in an array to enhance the adsorption effect of the coating area 220.

Of course, the adsorption holes 300 may be distributed in other ways, and the above embodiment is merely illustrative, and the present embodiment is not limited thereto.

The measurement module may include a height sensor 500, the height sensor 500 may be disposed on a side of the pole piece 200 facing away from the detection stage 100, that is, the height sensor 500 is located above the pole piece 200. The height measurement sensor 500 is arranged along the first direction between the front projection of the height measurement sensor on the operation station and the whole of the plurality of suction holes 300, so that the height measurement sensor 500 is opposite to the tab 210, and the plurality of suction holes 300 are opposite to the coating area 220.

In particular, the inspection station 100 may be provided with a support 600, the support 600 may include an opposing mounting portion 610 and two support portions 620, the two support portions 620 may be aligned along a second direction that is perpendicular to the first direction, and the first direction and the second direction lie in a first plane that may be considered to be a plane parallel to the operating station. Both ends of the mounting portion 610 are connected to two support portions 620, respectively. The height measurement sensor 500 may be mounted on the mounting portion 610, which is movable in a second direction with respect to the bracket 600, and the height measurement sensor 500 is facing the tab 210. It can be appreciated that when the altimeter sensor 500 is turned on, it can measure the height of the tab 210 opposite to the altimeter sensor 500, and the altimeter sensor 500 can measure the height of each portion of the tab 210 during the movement of the altimeter sensor 500.

In some embodiments, altimeter sensor 500 may be a laser altimeter sensor.

It should be noted that the movement travel of the altimeter sensor 500 along the second direction may be greater than the width of the pole piece 200, so as to ensure that the altimeter sensor 500 can measure each portion of the tab 210.

Taking the example that the height measurement sensor 500 is a laser height measurement sensor, the laser height measurement sensor in this embodiment may first emit laser to the detection platform 100 when measuring the height of the tab 210, so as to obtain the height between the laser height measurement sensor and the detection platform. Then, when the tab 210 is measured, the emitted laser is reflected after encountering the tab 210, so that the height between the tab 210 and the laser altimeter sensor can be obtained. When the adsorption hole 300 adsorbs the coating region 220, the coating region 220 can be tightly attached to the detection table 100, so that the height measurement of the tab 210 is not affected due to the warpage of the coating region, and the accuracy of the measurement result is improved.

It should be understood that, in the present embodiment, when the height of the tab 210 is measured, the height of the tab 210 can be understood as the distance between the surface of the tab 210 and the highest point of the curved portion of the tab 210 when the tab 210 is in the flat state.

Specifically, the mounting portion 610 may be provided with two opposing guide rails 611, each guide rail 611 extending in the second direction. The height measurement sensor 500 may be connected to the two guide rails 611 by a slider 612, and the height measurement sensor 500 may be moved in a second direction with respect to the guide rails 611 with the slider 612 engaged with the guide rails 611. It can be appreciated that, by providing two guide rails 611 in this embodiment, the stability of the height measurement sensor 500 during movement can be improved, so that the test result can be more accurate.

In addition, correspondingly, a driving device 700 may be disposed on the detecting platform 100, and the driving device 700 may be used to drive the laser altimeter sensor 500 to move relative to the guide rail 611. Illustratively, the drive 700 may include a motor.

In addition, the inspection station 100 of the present embodiment may further include a power source for supplying power to the vacuum generator 400, the altimeter sensor 500, and the driving device 700, so as to ensure that the above components can operate normally.

It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present utility model without departing from the spirit and scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The tab height measuring device is characterized by comprising a detection table, a positioning module and a measuring module, wherein the positioning module and the measuring module are both arranged on the detection table;

2. The tab height measurement device of claim 1, wherein the detection stage is provided with a bracket, the bracket being aligned with the operating station, the height sensor being mounted to the bracket, and the height sensor being movable relative to the bracket in the second direction.

3. The tab height measurement device according to claim 2, wherein the bracket is provided with a guide rail extending in the second direction, the height measurement sensor is mounted to the guide rail, and the height measurement sensor is movable in the second direction relative to the guide rail.

4. The tab height measurement device of claim 3, wherein the number of guide rails is two, the two guide rails are disposed opposite to each other, and both ends of the height measurement sensor are respectively mounted on the two guide rails.

5. A tab height measurement device according to claim 3, wherein the detection stage is provided with drive means for driving the height measurement sensor to move relative to the rail.

6. The tab height measurement device of claim 1, wherein the altimeter sensor is a laser altimeter sensor.

7. The tab height measurement device of claim 1, wherein the plurality of adsorption holes are uniformly distributed.

8. The tab height measurement device of claim 7, wherein the plurality of arrays of suction holes are distributed.

9. The tab height measurement device of claim 1, wherein the pole piece comprises a coating region and a tab, the plurality of adsorption holes for adsorbing the coating region.

10. The tab height measuring device according to claim 9, wherein four corners and a center of the coating area are respectively covered with the adsorption holes.