Concentricity detection device

Abstract

The utility model discloses a concentricity detection device, and relates to the technical field of detection devices. The concentricity detection device is used for detecting the concentricity of a battery cell and an auxiliary component and comprises a support, a clamping assembly, an identification positioning piece and a visual detection system. Wherein the clamping assembly is arranged on the bracket, and the clamping assembly comprises two clamping parts which can be close to or far away from each other so as to clamp or release a battery cell; each clamping part is provided with an identifying and positioning piece, and under the condition that the two clamping parts clamp the battery cell, the vertical center line of the connecting line of the two identifying and positioning pieces penetrates through the center of the battery cell; the visual detection system is arranged above the clamping assembly, and the photographing direction of the visual detection system faces the recognition positioning piece and the auxiliary component. According to the technical scheme provided by the utility model, the concentricity of the battery cell and the auxiliary component under the condition that the battery cell is shielded by the auxiliary component can be accurately calculated.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection device technical field, especially a concentricity detection device. BACKGROUND

[0002] The concentricity of the auxiliary component and the battery cell is one of the key factors affecting the safety and performance of the battery, and can affect the contact and current transmission of the battery internal electrode, therefore, it is crucial to detect the concentricity of the auxiliary component and the battery cell.

[0003] The existing concentricity detection device mainly analyzes and calculates the concentricity through the images of the auxiliary component and the battery cell captured at the same time. However, when the area of the auxiliary component is larger than the battery cell, the battery cell will be blocked, and complete image information cannot be obtained, so the concentricity of the auxiliary component and the battery cell cannot be detected. SUMMARY

[0004] The main purpose of the utility model is to provide a concentricity detection device, which aims to accurately calculate the concentricity of the battery cell and the auxiliary component in the case of the battery cell being blocked by the auxiliary assembly.

[0005] To achieve the above purpose, the concentricity detection device provided by the utility model is used to detect the concentricity of the battery cell and the auxiliary component, and comprises:

[0006] A support;

[0007] A clamping assembly provided on the support, the clamping assembly comprising two clamping parts capable of approaching or moving away from each other to clamp or release the battery cell;

[0008] An identification positioning member is provided on each clamping part, and the perpendicular center line of the connecting line of the two identification positioning members passes through the center of the battery cell when the two clamping parts clamp the battery cell; and

[0009] A visual detection system is provided above the clamping assembly, and the photographing direction of the visual detection system faces the identification positioning member and the auxiliary component.

[0010] In an embodiment, the identification positioning member is configured as a cylinder.

[0011] In an embodiment, the connecting line of the two identification positioning members is parallel to the movement direction of the two clamping parts.

[0012] In an embodiment, the identification positioning member is integrally formed with the clamping part.

[0013] In an embodiment, the clamping assembly further comprises:

[0014] A driving part is arranged corresponding to each clamping part, and two driving parts are movably arranged on the support and can approach or move away from each other.

[0015] In an embodiment, the concentricity detection device further comprises:

[0016] A moving plate is movably arranged on the support along the height direction of the battery cell, and an inclined sliding groove is arranged on the moving plate, and each driving part is arranged corresponding to one inclined sliding groove, and one end of the driving part away from the clamping part is arranged in the inclined sliding groove; in the height direction of the battery cell, one end of two inclined sliding grooves approaches each other and the other end of two inclined sliding grooves moves away from each other; and,

[0017] A first power member is arranged on the support and is drivingly connected with the moving plate to drive the moving plate to move up and down relative to the support.

[0018] In an embodiment, the support comprises:

[0019] A support shaft is rotatably arranged; and,

[0020] An installation platform is arranged around the outer periphery of the support shaft and rotates synchronously with the support shaft, and the clamping assembly is arranged on the installation platform and is arranged in multiple along the circumferential direction of the installation platform.

[0021] In an embodiment, the support further comprises:

[0022] A second power member is drivingly connected with the support shaft to drive the support shaft to rotate.

[0023] In an embodiment, the support further comprises a vertical rod, the vertical rod is arranged spaced apart from the support shaft, and the visual detection system is arranged on the vertical rod.

[0024] In an embodiment, the visual detection system comprises:

[0025] A camera is arranged on the vertical rod and is located above the clamping assembly; and,

[0026] A processor is electrically connected with the camera.

[0027] The technical scheme of the utility model is used for detecting the concentricity of the electric core and the auxiliary component, through setting up support, clamping assembly, identification positioning piece and visual detection system in the concentricity detection device, wherein, the clamping assembly is set in the support, the clamping assembly includes two clamping parts that can approach or move away from each other to clamp or release the electric core, one identification positioning piece is set on each clamping part, the perpendicular center line of the connecting line of the two identification positioning pieces passes through the center of the electric core in the case that the two clamping parts clamp the electric core, the visual detection system is set above the clamping assembly, and the photographing direction of the visual detection system faces the identification positioning piece and the auxiliary component. Compared with the concentricity detection device that needs to photograph the complete electric core and auxiliary component at the same time in the prior art, the utility model sets the identification positioning piece on the clamping part, and the visual detection system can position the center of the electric core according to the identification positioning piece in the case that the electric core is shielded by the auxiliary assembly, so as to accurately calculate the concentricity of the electric core and the auxiliary component. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the structure shown in the drawings without the creative labor of the ordinary skilled in the art.

[0029] Figure 1 The structural schematic diagram of an embodiment of the concentricity detection device provided by the utility model is shown in the figure.

[0030] Figure 2 The structural schematic diagram of an embodiment of the clamping assembly in the utility model is shown in the figure. Figure 1

[0031] The structural schematic diagram of an embodiment of the electric core and the auxiliary component in the utility model is shown in the figure. Figure 3 Figure 1 The structural schematic diagram of an embodiment of the clamping assembly, the electric core and the auxiliary component in the utility model is shown in the figure.

[0032] Figure 4 Figure 1 The structural schematic diagram of an embodiment of another view of the utility model is shown in the figure.

[0033] Figure 5 The structural schematic diagram of an embodiment of another view of the utility model is shown in the figure. Figure 3

[0034] Explanation of reference numerals:

[0035] 110, support shaft, 120, mounting platform, 130, vertical rod, 131, fixed seat, 132, square light source seat, 133, circular light source seat.

[0036] ​​​200, clamping assembly; 210, clamping part; 220, identification positioning member; 230, mounting seat;

[0037] 300, camera;

[0038] 410, electric core; 420, auxiliary component.

[0039] The purposes, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0041] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0042] In addition, if the embodiments of the utility model involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one feature. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0043] The concentricity of the auxiliary component and the electric core is one of the key factors affecting the safety and performance of the battery, which can affect the contact and current transmission of the internal electrode of the battery, therefore, it is crucial to detect the concentricity of the auxiliary component and the electric core.

[0044] The existing concentricity detection device mainly analyzes and calculates the concentricity through the images of the auxiliary component and the battery cell captured at the same time. However, when the area of the auxiliary component is larger than the battery cell, the battery cell will be blocked and complete image information cannot be obtained, so the concentricity of the auxiliary component and the battery cell cannot be detected.

[0045] The utility model provides a kind of concentricity detection device, to accurately calculate the concentricity of battery cell and auxiliary component in the case of being blocked by auxiliary assembly.

[0046] Please refer to Figures 1 to 3 In an embodiment, the concentricity detection device includes a bracket, a clamping assembly 200, a recognition positioning member 220 and a visual detection system.

[0047] The concentricity detection device is used to detect the concentricity of the battery cell 410 and the auxiliary component 420. The auxiliary component 420 is installed on the two poles of the battery cell 410. The auxiliary component 420 can be a top cover or a current collecting disc. In this case, the auxiliary component 420 is not specifically limited. In an embodiment, the cross-sectional shape of the battery cell 410 and the auxiliary component 420 is circular. Of course, in other embodiments, the cross-sectional shape of the battery cell 410 and the auxiliary component 420 can also be rectangular, etc., which is not specifically limited here. Among them, the cross-sectional size of the auxiliary component 420 is larger than that of the battery cell 410. When the auxiliary component 420 is placed on the top of the battery cell 410, the auxiliary component 420 will block the battery cell 410. Here, the specific cross-sectional size of the auxiliary component 420 and the battery cell 410 is not limited.

[0048] The bracket provides support and mounting position for the concentricity detection device. In an embodiment, the bracket can be set at a designated position or operation table. For this purpose, the bracket can be provided with a base, and mounting holes are provided on the base to realize the positioning of the concentricity detection device. Among them, the material of the bracket can be steel, aluminum alloy or carbon fiber reinforced plastic, etc., so that the bracket has good bearing capacity. Here, the material of the bracket is not specifically limited.

[0049] The clamping assembly 200 is arranged on the support, and the clamping assembly 200 includes two clamping portions 210 capable of moving close to or away from each other to clamp or release the battery cell 410. Specifically, in an embodiment, the clamping assembly 200 is two clamping jaws, and the clamping portions 210 of the two clamping jaws can move close to or away from each other. Further, in an embodiment, when the two clamping portions 210 clamp the battery cell 410, the centers of the two clamping jaws are on the same axis as the center of the battery cell 410 to achieve positioning of the battery cell 410. The cross section of the clamping portion 210 can be arc-shaped or hexagonal, etc., to ensure accurate positioning of the battery cell 410 while improving the stability of clamping. Here, the cross-sectional shape of the clamping portion 210 is not specifically limited. Of course, in other embodiments, the clamping assembly 200 can also be a caliper, a clamping ring, etc., and the clamping assembly 200 is not specifically limited here.

[0050] The identification positioning member 220 is arranged on the clamping assembly 200, and one identification positioning member 220 is arranged on each clamping portion 210. When the two clamping portions 210 clamp the battery cell 410, the perpendicular center line of the line connecting the two identification positioning members 220 passes through the center of the battery cell 410. In an embodiment, the midpoint of the line connecting the two identification positioning members 220 is vertically offset by a preset distance to obtain the center of the battery cell 410. The offset preset distance can be calculated according to the specific arrangement position of the identification positioning member 220, and is not limited here.

[0051] The visual detection system is arranged above the clamping assembly 200, and the photographing direction of the visual detection system faces the identification positioning member 220 and the auxiliary component 420. When the two clamping portions 210 clamp the battery cell 410 and the clamping assembly 200 is directly opposite the photographing direction, the visual detection system will capture an image of the identification positioning member 220 and the auxiliary component 420. Then, the visual detection device will identify the center of the auxiliary component 420 according to the captured image, and calculate the center of the battery cell 410 according to the position of the identification positioning member 220 and the offset preset distance. Finally, the visual detection device calculates the distance between the center of the auxiliary component 420 and the center of the battery cell 410 to obtain the concentricity of the auxiliary component 420 and the battery cell 410.

[0052] The technical scheme of the utility model is used for detecting the concentricity of the battery cell 410 and the auxiliary component 420, through setting up the support, the clamping assembly 200, the identification positioning piece 220 and the visual detection system in the concentricity detection device, wherein the clamping assembly 200 is arranged on the support, the clamping assembly 200 includes two clamping parts 210 that can approach or be away from each other to clamp or release the battery cell 410; one identification positioning piece 220 is arranged on each clamping part 210, and the perpendicular center line of the connecting line of the two identification positioning pieces 220 passes through the center of the battery cell 410 when the two clamping parts 210 clamp the battery cell 410; the visual detection system is arranged above the clamping assembly 200, and the photographing direction of the visual detection system faces the identification positioning piece 220 and the auxiliary component 420. Compared with the concentricity detection device that needs to photograph the complete battery cell 410 and auxiliary component 420 simultaneously in the prior art, the utility model discloses the technical scheme that the identification positioning piece 220 is arranged on the clamping part 210, and the visual detection system can position the center of the battery cell 410 according to the identification positioning piece 220 in the case that the battery cell 410 is shielded by the auxiliary component 420, so as to accurately calculate the concentricity of the battery cell 410 and the auxiliary component 420.

[0053] Please refer to Figures 4 to 5 In an embodiment, the identification positioning piece 220 is configured as a cylinder, which is simple in structure and easy to identify, so as to more accurately position the center of the battery cell 410. Of course, in other embodiments, the identification positioning piece 220 can also be configured as a protrusion or a color mark, which is not limited here. Further, in an embodiment, the connecting line of the two identification positioning pieces 220 is parallel to the movement direction of the two clamping parts 210. In an embodiment, the positions of the two identification positioning pieces 220 on the two clamping parts 210 are the same, so as to ensure that the perpendicular center line of the connecting line of the two identification positioning pieces 220 passes through the center of the battery cell 410. Further, in an embodiment, the identification positioning piece 220 is integrally formed with the clamping part 210, which avoids the connection error between the identification positioning piece 220 and the clamping part 210. Of course, in other embodiments, the identification positioning piece 220 and the clamping part 210 can also be connected through screwing, bonding or other modes, which is not limited here.

[0054] In this way, by configuring the identification positioning piece 220 as a cylinder, integrally forming the identification positioning piece 220 with the clamping part 210, and making the connecting line of the two identification positioning pieces 220 parallel to the movement direction of the two clamping parts 210, the accuracy of positioning the center of the battery cell 410 according to the identification positioning piece 220 is ensured, and further the detection accuracy of the concentricity detection device is ensured.

[0055] Please refer to Figures 1 to 2 In an embodiment, the clamping assembly 200 further includes a driving part, and each clamping part 210 is correspondingly provided with a driving part, and the two driving parts are movably arranged on the support and can approach or be away from each other.

[0056] In an embodiment, the clamping assembly 200 is mounted on the support through the mounting base 230, and the driving portions are movably arranged on the mounting base 230. In an embodiment, the concentricity detection device further comprises a moving plate and a first power member. The moving plate is movably arranged on the mounting base 230 along the height direction of the battery cell 410, and the moving plate is provided with inclined sliding grooves. Each driving portion is provided with an inclined sliding groove corresponding thereto, and the end of the driving portion away from the clamping portion 210 is arranged in the inclined sliding groove. In the height direction of the battery cell 410, one end of the two inclined sliding grooves is close to each other, and the other end of the two inclined sliding grooves is away from each other. The first power member is arranged on the mounting base 230 and is drivingly connected with the moving plate to drive the moving plate to move up and down relative to the support. In an embodiment, the moving plate and the driving portion can be movably mounted on the mounting base 230 through a guide rail, and the mounting manner of the moving plate and the driving portion is not limited here.

[0057] Specifically, in an embodiment, in the height direction of the battery cell 410, one end of the two inclined sliding grooves close to each other is close to each other, and the other end of the two inclined sliding grooves close to each other is away from each other. In this way, when the first power member drives the moving plate to move downward relative to the support, the inner walls of the two inclined sliding grooves can respectively push the two driving portions to be close to each other, thereby driving the two clamping portions 210 to be close to each other to clamp the battery cell 410; when the first power member drives the moving plate to move upward relative to the support, the inner walls of the two inclined sliding grooves can respectively push the two driving portions to be away from each other, thereby driving the two clamping portions 210 to be away from each other to release the battery cell 410. In another embodiment, in the height direction of the battery cell 410, one end of the two inclined sliding grooves close to each other can be away from each other, and the other end of the two inclined sliding grooves close to each other can be close to each other. The inclined sliding grooves are not limited here. The first power member can be a pneumatic cylinder, an electric motor or a hydraulic cylinder, and is not limited here. Of course, in other embodiments, the two driving portions can be directly connected with two driving members to realize the mutual approach or separation of the two driving portions. The realization manner of the mutual approach or separation of the two driving portions is not limited here.

[0058] Please refer to Figure 1 In an embodiment, the support comprises a support shaft 110 and a mounting platform 120. The support shaft 110 is rotatably arranged, the mounting platform 120 is arranged around the outer periphery of the support shaft 110 and rotates synchronously with the support shaft 110, and the clamping assembly 200 is arranged on the mounting platform 120 and is arranged along the circumferential direction of the mounting platform 120.

[0059] In an embodiment, the mounting base 230 is fixed to the mounting platform 120, and when the clamping part 210 clamps the battery cell 410, the support shaft 110 rotates to drive the mounting platform 120 to move the clamping assembly 200 to the position directly below the vision detection system for concentricity detection. In an embodiment, the support shaft 110 is always rotating during the detection process, so that the plurality of battery cells 410 and auxiliary components 420 are continuously moved to the position directly below the vision detection system. In an embodiment, the clamping assembly 200 can be provided with two or more. Of course, in other embodiments, the clamping assembly 200 can also be provided with only one, and the specific number of clamping assemblies 200 is not limited here.

[0060] In an embodiment, the bracket is also provided with a second power member, which is drivingly connected with the support shaft 110 to drive the support shaft 110 to rotate. In an embodiment, the support shaft 110 is connected with the output shaft of the second power member to realize power transmission. Of course, in other embodiments, the support shaft 110 can also be drivingly connected with the second power member through gear and rack or worm and gear structures, and the driving connection manner of the support shaft 110 and the second power member is not limited here. The second power member can be a motor, a pneumatic cylinder or a hydraulic cylinder, and the second power member is not limited here.

[0061] In this way, by providing the support shaft 110 and the mounting platform 120, the mounting platform 120 is provided with a plurality of clamping assemblies 200, and the support shaft 110 is continuously rotating during the detection process. The vision detection system can detect the battery cell 410 and the auxiliary component 420 during the movement of the clamping assembly 200, which reduces the detection waiting time and improves the detection efficiency.

[0062] Please refer to Figure 1 and Figure 2 In an embodiment, the bracket further includes a vertical rod 130, which is spaced apart from the support shaft 110, and the vision detection system is arranged on the vertical rod 130.

[0063] In an embodiment, the vertical rod 130 is arranged close to the mounting platform 120, and a movement space is left between the vertical rod 130 and the support shaft 110 to facilitate the rotation of the mounting platform 120 with the clamping assembly 200. The vertical rod 130 is provided with a fixing seat 131, which is located above the clamping assembly 200 and is used for mounting the vision detection system.

[0064] In an embodiment, the visual detection system comprises the camera 300 arranged on the fixed seat 131 and a processor electrically connected with the camera 300. In an embodiment, the processor is used to identify the coordinates of the image and calculate the concentricity according to the coordinates. The working process of the processor is mainly realized by a logical algorithm, which is not limited herein. In an embodiment, the camera 300 is a color camera 300 to ensure the clarity of the shooting. Further, in an embodiment, the vertical rod 130 is further provided with a square light source seat 132 and a circular light source seat 133, which are arranged between the camera 300 and the clamping assembly 200 in sequence. The lens of the camera 300, the opening of the square light source seat 132 and the opening of the circular light source seat 133 all face the clamping assembly 200 and are on the same axis. In an embodiment, the square light source seat 132 and the circular light source seat 133 are both installed with light sources with adjustable brightness, which can clearly light the auxiliary component 420 and the identification positioning piece 220 to ensure that the camera 300 can accurately shoot the profile of the auxiliary component 420 and the identification positioning piece 220.

[0065] In the embodiment of the utility model, the camera 300 and the processor are arranged on the visual detection system, the camera 300 can clearly shoot and identify the profile of the identification positioning piece 220 and the auxiliary component 420, and the information is transmitted to the processor. After receiving the information, the processor can obtain the center coordinates of the auxiliary component 420, and obtain the center coordinates of the battery cell 410 according to the position of the identification positioning piece 220 and the preset distance of the offset, and obtain the concentricity of the battery cell 410 and the auxiliary component 420 by calculating the distance between the center coordinates of the battery cell 410 and the center coordinates of the auxiliary component 420. In this way, the accurate detection of the concentricity of the battery cell 410 and the auxiliary component 420 is realized in the case that the battery cell 410 is shielded by the auxiliary component 420.

[0066] The above-mentioned is only an exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by the utility model specification and the drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A concentricity detecting device for detecting concentricity of an electric core and an auxiliary member, characterized by, The utility model relates to a kind of concentricity detection device of battery cell, including: Support frame; Clamping assembly, be equipped in the support frame, the clamping assembly includes two can be close to or away from each other clamping part to clamp or release the electric core; Identification positioning member, each described clamping part is equipped with one described identification positioning member;Two described clamping part clamps the electric core in the case, the vertical center line of the line of two described identification positioning members passes through the center of the electric core;And, Visual detection system, be equipped above the clamping assembly, the photographing direction of the visual detection system faces the identification positioning member and the auxiliary component.

2. The concentricity detection device of claim 1, wherein, The identification positioning member is configured as a cylinder.

3. The concentricity detection device of claim 1, wherein, The line of two described identification positioning members is parallel to the movement direction of two described clamping parts.

4. The concentricity detection device of claim 1, wherein, The identification positioning member is integrally formed with the clamping part.

5. The concentricity detection device of claim 1, wherein, The clamping assembly further includes: Driving part, each described clamping part is equipped with one described driving part, two described driving parts are movably equipped in the support frame and can be close to or away from each other.

6. The concentricity detection device of claim 5, wherein, The concentricity detection device further includes: Moving plate, along the height direction of the electric core, movably equipped in the support frame, and the moving plate is equipped with inclined chute, each described driving part is equipped with one described inclined chute, and the end of the driving part away from the clamping part is equipped in the inclined chute;In the height direction of the electric core, one end of two described inclined chutes is close to each other and the other end of two described inclined chutes is away from each other;And, First power member, equipped in the support frame, and driving connection with the moving plate to drive the moving plate to move up and down relative to the support frame.

7. The concentricity detection device of claim 1, wherein The support frame includes: Supporting shaft, rotatably arranged;And, Mounting platform, periphery is surrounded around the supporting shaft and is synchronously rotated with the supporting shaft, and the clamping assembly is arranged on the mounting platform and is arranged along the circumferential direction of the mounting platform.

8. The concentricity detection device of claim 7, wherein, The support frame further includes: Second power member, driving connection with the supporting shaft to drive the supporting shaft to rotate.

9. The concentricity detection device of claim 7, wherein, The support frame further includes a vertical rod, the vertical rod is arranged apart from the supporting shaft, and the visual detection system is arranged on the vertical rod.

10. The concentricity detection device of claim 9, wherein, The visual detection system includes: Camera, arranged on the vertical rod and above the clamping assembly;And, Processor, electrically connected with the camera.

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