Battery cell clamping and bearing device and battery cell shell detection equipment

Abstract

The utility model relates to the technical field of battery processing, in particular to a battery cell clamping and bearing device and battery cell shell detection equipment. The bearing part of the battery cell clamping and bearing device is used for bearing a battery cell, and the first clamping jaw and the second clamping jaw are matched to clamp the battery cell. Due to the fact that the clamping jaw driving mechanism of the battery cell clamping and bearing device adopts the driving motor, the initial distance between the first clamping jaw and the second clamping jaw can be adjusted through the linear transmission mechanism, clamping and loosening of the clamping jaws can be achieved, meanwhile, the battery cell clamping and bearing device can adapt to battery cells of different sizes, and adaptability is better.

Description

Technical Field

[0001] This application relates to the field of battery processing technology, specifically to a battery cell clamping and carrying device and a battery cell casing testing equipment. Background Technology

[0002] Currently, most battery appearance inspections are conducted manually, which is time-consuming and labor-intensive. The results are highly dependent on the inspector's skills and focus, and overly subjective inspections can easily lead to missed or incorrect detections. Using inspection equipment can improve inspection quality. Current equipment includes transmission lines that transport battery cells one by one through inspection stations, allowing for item-by-item defect detection. However, different cell models typically require different clamping fixtures on the transmission line, and the adaptability of cell clamping devices is poor. Utility Model Content

[0003] This application provides a battery cell clamping and support device to improve the poor adaptability of current battery cell clamping and support devices.

[0004] In addition, the purpose of this application is to provide a battery cell casing testing device using the above-mentioned battery cell clamping and carrying device.

[0005] In a first aspect, some embodiments provide a battery cell clamping and supporting device, comprising:

[0006] A support base, the support base including a support portion for supporting the battery cell;

[0007] A first gripper and a second gripper, at least one of the first gripper and the second gripper being movably mounted on the support;

[0008] The system also includes a gripper driving mechanism for driving the first gripper and the second gripper to move closer and further apart. The gripper driving mechanism includes a drive motor and a linear transmission mechanism, wherein the drive motor can adjust the initial distance between the first gripper and the second gripper through the linear transmission mechanism.

[0009] Furthermore, in some embodiments, the linear transmission mechanism is a lead screw and nut mechanism, which includes a lead screw, a first nut, and a second nut. The lead screw includes a positive lead section and a negative lead section. The first nut is connected to the positive lead section, and the second nut is connected to the negative lead section. The first gripper is connected to the first nut, and the second gripper is connected to the second nut.

[0010] Furthermore, in some embodiments, the drive motor is an integrated drive and control stepper motor, and the drive motor and the lead screw are driven by a coupling or belt drive.

[0011] Furthermore, in some embodiments, the support includes a base plate and a mounting plate above the base plate, and the drive motor is mounted between the base plate and the mounting plate; the mounting plate is provided with a guide rail, the first gripper and the second gripper are movably mounted on the guide rail, the lead screw is located between the support portion and the guide rail, and the lead screw passes through the first gripper and the second gripper.

[0012] Furthermore, in some embodiments, the support includes a base plate and a mounting plate above the base plate, and the drive motor is mounted between the base plate and the mounting plate; the first gripper and the second gripper are movably assembled on the mounting plate.

[0013] Furthermore, in some embodiments, the support includes a mounting plate and a support member fixed on the mounting plate, the first gripper and the second gripper are movably assembled on the mounting plate, and the bearing portion is a support member fixed on the top of the support member.

[0014] Furthermore, in some embodiments, the support member includes a first support member and a second support member, the first support member and the second support member being spaced apart in a direction perpendicular to the moving direction of the first gripper, a guide rail being mounted on the mounting plate, the first gripper and the second gripper being movably mounted on the guide rail, and the guide rail passing between the first support member and the second support member.

[0015] Furthermore, in some embodiments, the support member includes a first support member and a second support member, the first support member and the second support member being spaced apart in a direction perpendicular to the moving direction of the first gripper, the first support member and the second support member forming a gripper active area, a guide rail being mounted on the mounting plate, the first gripper and the second gripper being movably mounted on the guide rail, and the gripper active area allowing at least a portion of the first gripper and at least a portion of the second gripper to move.

[0016] Secondly, some embodiments provide a battery cell casing testing device, including a casing testing device and a battery cell transmission line. The casing testing device is used to test the casing of the battery cell. The battery cell transmission line includes a transport track, a mover on the transport track, and a battery cell clamping and supporting device as described in any embodiment of the first aspect. The battery cell clamping and supporting device is fixed on the mover.

[0017] In a further embodiment, the cell transmission line is a circular transmission loop, the number of movers is two or more, each mover can move independently on the conveying track, the casing detection device is arranged beside the conveying track, and the first gripper and the second gripper are arranged at intervals in the direction of movement of the movers; the cell has a wide side and a narrow side, and the first gripper and the second gripper are used to clamp the narrow side of the cell, so that the wide side of the cell faces the casing detection device.

[0018] According to the battery cell clamping and supporting device of the above embodiment, the supporting part is used to support the battery cell, and the first jaw and the second jaw cooperate to clamp the battery cell. Since the jaw driving mechanism of the battery cell clamping and supporting device adopts a drive motor, the initial distance between the first jaw and the second jaw can be adjusted through the linear transmission mechanism, which can realize the clamping and releasing of the jaw, and can also adapt to battery cells of different sizes, thus having better adaptability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the battery cell clamping and supporting device in some embodiments;

[0020] Figure 2 This is a schematic diagram of the structure of the battery cell casing testing equipment in some embodiments;

[0021] Figure 3 This is a schematic diagram of the structure of the battery cell transmission line in some embodiments.

[0022] List of feature names corresponding to the reference numerals in the figure: 1. Bearing seat; 11. Bearing part; 110. Bearing component; 12. Base plate; 13. Mounting plate; 14. Support component; 141. First support component; 142. Second support component; 15. Lead screw seat; 2. First gripper; 21. Clamping component; 22. Transmission connecting component; 221. Nut mounting part; 222. Clamping component connecting part; 3. Second gripper; 4. Gripper drive mechanism; 41. Drive motor; 42. Lead screw; 421. Positive lead screw segment; 422. Negative lead screw segment; 43. Synchronous belt; 44. Driven pulley; 45. Driving pulley; 5. Guide rail; 61. First moving component; 62. Second moving part; 71. Open position sensor; 72. Clamp position sensor; 73. Sensing element; 100. Battery cell; 101. Wide side; 102. Narrow side; 200. Conveying track; 2001. Shuttle track; 2002. Detection track; 201. Base; 202. Circulating linear motor; 203. Sliding contact power supply guide rail; 204. Shuttle linear motor; 300. Moving part; 400. Shell detection device; 401. Wide surface detection module; 402. Top surface detection module; 403. Pole post detection module; 404. Top surface corner detection module; 405. Top surface edge detection module; 406. Explosion-proof valve detection module.

[0023] Explanation of reference numerals in parentheses in the accompanying drawings: The feature referred to by the reference numerals in parentheses in the accompanying drawings is the feature represented by both the number inside the parentheses and the number outside the parentheses. Detailed Implementation

[0024] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0025] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0026] In the description herein, it should be understood that the terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection, an abutment, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] The embodiments described in the detailed implementation can be combined in any suitable manner without contradiction. For example, different implementation methods can be formed by combining different embodiments. In order to avoid unnecessary repetition, the various possible combinations of the embodiments will not be described separately.

[0031] To address the problem of poor adaptability of current battery cell clamping fixtures to battery cell sizes, this application provides a battery cell clamping and supporting device. This device, through a drive motor and linear transmission mechanism, can adjust the distance between the first and second clamping jaws, thereby accommodating battery cells of different sizes. The battery cell clamping and supporting device of this application will be described in detail below with reference to the accompanying drawings.

[0032] In some embodiments, please refer to Figure 1 The battery cell clamping and supporting device includes a support base 1, a first gripper 2, a second gripper 3, and a gripper drive mechanism 4. The support base 1 includes a supporting portion 11 for supporting the battery cell 100. At least one of the first gripper 2 and the second gripper 3 is movably mounted on the support base 1. The gripper drive mechanism 4 includes a drive motor 41 and a linear transmission mechanism. The linear transmission mechanism is drively connected to at least one of the first gripper 2 and the second gripper 3, so that the drive motor 41 adjusts the initial distance between the first gripper 2 and the second gripper 3 through the linear transmission mechanism.

[0033] After the battery cell 100 is placed on the support portion 11 of the support base 1, the first gripper 2 and the second gripper 3 move closer together to clamp the battery cell 100. For battery cells 100 of different sizes, the gripper drive mechanism 4 of the battery cell 100 clamping support device can adjust the initial distance between the first gripper 2 and the second gripper 3 via a linear transmission mechanism, thus accommodating battery cells 100 of different sizes. Therefore, through the adjustment action of the drive motor 41 and the linear transmission mechanism, both clamping and releasing of the grippers can be achieved, and the initial distance between the first gripper 2 and the second gripper 3 can also be adjusted, adapting to battery cells 100 of different sizes and providing better adaptability.

[0034] It should be noted that the initial spacing described in this application refers to the initial spacing set for a certain size of battery cell 100. Specifically, before clamping the battery cell 100, the spacing between the first clamping claw 2 and the second clamping claw 3 is the initial spacing. After the battery cell 100 is placed on the supporting part 11, under the driving action of the clamping claw driving mechanism 4, the spacing between the first clamping claw 2 and the second clamping claw 3 is reduced from the initial spacing to clamp the battery cell 100.

[0035] In one embodiment, the first gripper 2 and the second gripper 3 are both movably mounted on the support base 1. A linear transmission mechanism is driven to the first gripper 2 and the second gripper 3, so as to drive the first gripper 2 and the second gripper 3 to move closer and further apart.

[0036] Regarding the form of the linear drive mechanism, please refer to some embodiments. Figure 1 The linear transmission mechanism is a lead screw and nut mechanism, which includes a lead screw 42, a first nut, and a second nut. The lead screw 42 includes a positive lead section 421 and a negative lead section 422. The first nut is connected to the positive lead section 421, and the second nut is connected to the negative lead section 422. The first gripper 2 is connected to the first nut, and the second gripper 3 is connected to the second nut. The lead screw and nut mechanism has high precision and can more accurately adjust the distance between the first gripper 2 and the second gripper 3.

[0037] To further improve adjustment accuracy, please refer to some embodiments. Figure 1 The drive motor 41 is an integrated drive and control stepper motor, and the drive motor 41 and the lead screw 42 are driven by a coupling or belt drive. The integrated drive and control stepper motor can control the clamping force of the gripper by controlling the number of output pulses, which can effectively avoid damage to the battery cell caused by excessive clamping force. At the same time, controlling the opening and closing amount can also achieve compatible clamping of batteries of different sizes. In some other embodiments, the drive motor 41 can also be a servo motor.

[0038] In some embodiments, please refer to Figure 1The drive motor 41 is connected to the lead screw 42 via a synchronous belt 43. A driven pulley 44 is fixed to one end of the lead screw 42, and a driving pulley 45 is fixed to the output shaft of the drive motor 41. The driving pulley 45 and the driven pulley 44 are connected via the synchronous belt 43, enabling the driving pulley 45 to drive the driven pulley 44 to rotate. The synchronous belt 43 is located on the horizontal side of the support 1, and the rotation axis of the drive motor 41 is parallel to the rotation axis of the lead screw 42.

[0039] In some embodiments, please refer to Figure 1 The support 1 includes a base plate 12 and a mounting plate 13 located above the base plate 12. The drive motor 41 is mounted between the base plate 12 and the mounting plate 13. The first gripper 2 and the second gripper 3 are movably mounted on the mounting plate 13. In this way, the drive motor 41 can be installed using the space between the base plate 12 and the mounting plate 13, resulting in a more compact overall space.

[0040] In some embodiments, please refer to Figure 1 The mounting plate 13 is equipped with a guide rail 5. The first gripper 2 and the second gripper 3 are movably mounted on the guide rail 5. The lead screw 42 is located between the bearing part 11 and the guide rail 5, and passes through the first gripper 2 and the second gripper 3. This position of the lead screw 42 above the guide rail 5 facilitates the installation of both the guide rail 5 and the lead screw 42. Guided by the guide rail 5, the first gripper 2 and the second gripper 3 are less prone to jamming, resulting in better stability. In some other embodiments, the first gripper 2 and the second gripper 3 can also be movably mounted on the mounting plate 13. In some other embodiments, the mounting plate 13 can also be fixed to the drive motor 41, which is fixed to the base plate 12.

[0041] In some embodiments, please refer to Figure 1 The support base 1 includes a support member 14, which is fixed to the mounting plate 13. The bearing portion 11 is a bearing member 110 fixed to the top of the support member 14. Specifically, in some embodiments, please refer to... Figure 1 The support member 14 includes a first support member 141 and a second support member 142. The first support member 141 and the second support member 142 are spaced apart in a direction perpendicular to the moving direction of the first gripper 2. Both the first gripper 2 and the second gripper 3 are movably mounted on the guide rail 5, which passes between the first support member 141 and the second support member 142. By supporting the carrier member 110 with the first support member 141 and the second support member 142, the reliability of the carrier member 110 can be improved. At the same time, the space between the first carrier member 110 and the second carrier member 142 can be used to install the guide rail 5, resulting in a more compact overall space.

[0042] Specifically, in some embodiments, please refer to Figure 1The first support member 141 is a hollow support plate. Similarly, the structure of the second support member 142 can be the same as that of the first support member 141. In some other embodiments, the first support member 141 can also be a support column.

[0043] In some embodiments, please refer to Figure 1 The support member 110 is a support plate, one side of which is fixed to the first support member 141 and the other side is fixed to the second support member 142.

[0044] Furthermore, in some embodiments, please refer to Figure 1 The first support member 141 and the second support member 142 form a gripper movement area, which allows at least a portion of the first gripper 2 and at least a portion of the second gripper 3 to enter. This fully utilizes the space between the first support member 141 and the second support member 142, making the overall structure of the support device more compact. In some other embodiments, the first gripper 2 and the second gripper 3 may not enter the area between the first support member 141 and the second support member 142, for example, the first support member 141 and the second support member 142 may be attached together.

[0045] In some embodiments, please refer to Figure 1 The support member 14 is fixed to the mounting plate 13 by fasteners, and the carrier member 110 is fixed to the support member 14 by fasteners. Fasteners can be screws, rivets, etc. In some other embodiments, the support member 14 and the carrier member 110 can also be integrally formed.

[0046] In some embodiments, please refer to Figure 1 The guide rail 5 is provided with a first movable component 61 and a second movable component 62, both of which are movably mounted on the guide rail 5. Specifically, both the first movable component 61 and the second movable component 62 have sliding grooves that slide and engage with the guide rail 5. The first gripper 2 is fixed to the first movable component 61, and the second gripper 3 is fixed to the second movable component 62. The first gripper 2 is movably mounted on the guide rail 5 via the first movable component 61, and the second gripper 3 is movably mounted on the guide rail 5 via the second movable component 62.

[0047] Regarding the structure of the first gripper 2, in some embodiments, the first gripper 2 includes a clamping member 21 and a transmission connector 22. The transmission connector 22 is fixed to the first moving member 61, and the clamping member 21 is fixed to the transmission connector 22. The first nut is fixed to the transmission connector 22.

[0048] In some embodiments, please refer to Figure 1The transmission connector 22 includes a nut mounting portion 221 and a clamping member connecting portion 222, which extends from the top of the nut mounting portion 221 away from the second gripper 3. The clamping member 21 is fixed to the clamping member connecting portion 222. A lead screw seat 15 is provided on the mounting plate 13, and both ends of the lead screw 42 are rotatably mounted on the lead screw seat 15. When the first gripper 2 and the second gripper 3 are open, the clamping member connecting portion 222 is above the lead screw seat 15. The extension of the clamping member connecting portion 222 from the top of the nut mounting portion 221 away from the second gripper 3 avoids interference with the lead screw seat 15, reduces the length of the lead screw 42, and thus reduces the size of the device.

[0049] To prevent the clamping member 21 from damaging the battery cell 100, the clamping member 21 includes a protective pad for contacting the battery cell 100. The protective pad can be made of flexible materials such as rubber or silicone.

[0050] In some embodiments, please refer to Figure 1 The structure of the second gripper 3 is the same as that of the first gripper 2, and will not be described in detail here.

[0051] In some embodiments, please refer to Figure 1 One of the first gripper 2 and the second gripper 3 is equipped with a photoelectric transmitting module, and the other with a photoelectric receiving module. When the battery cell 100 is clamped between the first gripper 2 and the second gripper 3, the photoelectric receiving module cannot receive the signal emitted by the photoelectric transmitting module, thus sensing that the battery cell 100 is between the first gripper 2 and the second gripper 3. When there is no battery cell 100 between the first gripper 2 and the second gripper 3, the photoelectric receiving module can receive the signal emitted by the photoelectric transmitting module, thus sensing that there is no battery cell 100 between the first gripper 2 and the second gripper 3.

[0052] In some embodiments, please refer to Figure 1 The mounting plate 13 is equipped with an open position sensor 71 and a clamping position sensor 72. The second gripper 3 is equipped with a sensor 73. When the first gripper 2 and the second gripper 3 are open, the open position sensor 71 can detect the sensor 73. When the first gripper 2 and the second gripper 3 clamp the battery cell 100, the clamping position sensor 72 can detect the sensor 73. Specifically, both the open position sensor 71 and the clamping position sensor 72 are slot-type photoelectric sensors, and the sensor 73 is a sensing plate fixed on the second gripper 3.

[0053] In one embodiment of a battery cell casing testing device, please refer to... Figure 2 and Figure 3The battery cell casing testing equipment includes a casing testing device 400, a battery cell transmission line, and a battery cell clamping and carrying device as described in any of the above embodiments. The casing testing device 400 is used to test the casing of the battery cell 100. The battery cell transmission line includes a conveying track 200 and a mover 300 located on the conveying track 200. The battery cell clamping and carrying device is fixed on the mover 300.

[0054] In some embodiments, please refer to Figure 2 and Figure 3 The cell transmission line is a cyclic transmission loop, and the mover 300 moves independently in a cyclic motion on the conveying track 200.

[0055] Specifically, in some embodiments, please refer to Figure 2 and Figure 3 The circulating transmission loop is a magnetically driven conveyor line. In some embodiments, the circulating transmission loop is a magnetically levitated circulating loop, where each mover 300 can be independently controlled to move without needing to synchronize with each other. This achieves cyclic detection and greatly improves detection efficiency. It should be noted that the main purpose of this embodiment is to provide a cell clamping and carrying device applied to a circulating transmission loop. The circulating transmission loop is a relatively mature existing technology, and its detailed structure will not be described in detail. For ease of understanding, a brief introduction to the magnetically driven conveyor line in the circulating transmission loop is as follows:

[0056] Please refer to Figure 2 and Figure 3 The circulating transmission loop includes a base 201, a conveyor track 200, a circulating linear motor 202, a sliding contact power supply guide rail 203, and a tethering linear motor 204. The mover 300 is movably mounted on the conveyor track 200. The base 201 is made of marble to reduce vibration generated during the operation of the moving mechanism, thereby further increasing the detection accuracy.

[0057] The conveying track 200 includes a shuttle track 2001 and a detection track 2002, with two of each. The housing detection device 400 is located beside the detection track 2002. A circulating linear motor 202 drives a mover to move linearly along the detection track 2002. A shuttle linear motor 204 drives the shuttle track 2001 to switch between the two detection tracks 2002; after the mover 300 moves onto the shuttle track 2001, switching between the two detection tracks is achieved. Installing a grating ruler and a reading head can improve the repeatability of the motion mechanism. In some other embodiments, the track of the circulating conveying loop can also be a circular track, in which case a shuttle linear motor is not required.

[0058] The first gripper 2 and the second gripper 3 are arranged at intervals in the direction of movement of the mover 300. The battery cell 100 has a wide side 101 and a narrow side 102. The first gripper 2 and the second gripper 3 are used to hold the narrow side 102 of the battery cell 100, so that the wide side 101 of the battery cell 100 faces the casing detection device 400. This makes it easier for the casing detection device 400 to detect the wide side 101.

[0059] In some embodiments, please refer to Figure 2 and Figure 3 The casing inspection device 400 includes a wide-side inspection module 401 for inspecting the wide side surface 101. In some embodiments, the casing inspection device 400 also includes a top-side inspection module 402 for inspecting the top surface of the battery cell 100. In some embodiments, the casing inspection device 400 is a vision inspection device that inspects the battery cell by collecting image information of the battery cell. For some embodiments, please refer to... Figure 2 The casing detection device 400 also includes a pole detection module 403 for detecting poles, a top surface corner detection module 404 for detecting top surface corners, a top surface edge detection module 405 for detecting top surface edges, and an explosion-proof valve detection module 406 for detecting explosion-proof valves.

[0060] In some embodiments, please refer to Figure 2 and Figure 3 The working process of the casing detection device 400 is described below:

[0061] The battery cell to be tested is placed on the battery cell clamping support device. Then, the mover 300 drives the battery cell clamping support device through each testing module. When the mover 300 leaves one testing track 2002 and moves to the transfer track 2001, the transfer linear motor 204 drives the transfer track 2001 to connect with another testing track 2002. The mover 300 moves to the other testing track 2002 until it leaves the testing track 2002. The battery cell casing test is completed. The battery cell is removed from the battery cell clamping support device. The mover 300 is driven by another transfer linear motor 204 to return to the initial position on another transfer track 2001.

[0062] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. An electrode cell clamping carrier device, characterized by, include: A support base, the support base including a support portion for supporting the battery cell; A first gripper and a second gripper, at least one of the first gripper and the second gripper being movably mounted on the support; The system also includes a gripper driving mechanism for driving the first gripper and the second gripper to move closer and further apart. The gripper driving mechanism includes a drive motor and a linear transmission mechanism, wherein the drive motor can adjust the initial distance between the first gripper and the second gripper through the linear transmission mechanism.

2. The cell clamping carrier apparatus of claim 1, wherein, The linear transmission mechanism is a lead screw and nut mechanism, which includes a lead screw, a first nut, and a second nut. The lead screw includes a positive lead section and a negative lead section. The first nut is connected to the positive lead section, and the second nut is connected to the negative lead section. The first gripper is connected to the first nut, and the second gripper is connected to the second nut.

3. The cell clamping carrier apparatus of claim 2, wherein, The drive motor is an integrated drive and control stepper motor, and the drive motor and the lead screw are driven by a coupling or belt drive.

4. The cell clamping carrier apparatus of claim 2, wherein, The support includes a base plate and a mounting plate above the base plate. The drive motor is installed between the base plate and the mounting plate. The mounting plate is provided with a guide rail. The first gripper and the second gripper are movably mounted on the guide rail. The lead screw is located between the support part and the guide rail and passes through the first gripper and the second gripper.

5. The cell clamping carrier apparatus of claim 1 or 2 or 3, wherein, The support includes a base plate and a mounting plate above the base plate, and the drive motor is mounted between the base plate and the mounting plate; the first gripper and the second gripper are movably assembled on the mounting plate.

6. The cell clamping carrier apparatus of claim 1 or 2 or 3, wherein, The support includes a mounting plate and a support member fixed on the mounting plate. The first gripper and the second gripper are movably assembled on the mounting plate. The bearing part is the support member fixed on the top of the support member.

7. The cell clamping carrier apparatus of claim 6, wherein, The support includes a first support and a second support, which are spaced apart in a direction perpendicular to the moving direction of the first gripper. A guide rail is mounted on the mounting plate, and both the first gripper and the second gripper are movably mounted on the guide rail. The guide rail passes between the first support and the second support.

8. The cell clamping carrier apparatus of claim 6, wherein, The support includes a first support and a second support, which are spaced apart in a direction perpendicular to the moving direction of the first gripper. The first support and the second support form a gripper movement area. A guide rail is mounted on the mounting plate. The first gripper and the second gripper are movably mounted on the guide rail. The gripper movement area allows at least a portion of the first gripper and at least a portion of the second gripper to move.

9. An electrode housing inspection apparatus characterized by comprising: The device includes a casing detection device, a cell transmission line, and a cell clamping and carrying device as described in any one of claims 1-8. The casing detection device is used to detect the casing of the cell. The cell transmission line includes a transport track and a mover located on the transport track. The cell clamping and carrying device is fixed on the mover.

10. The battery cell case inspection apparatus according to claim 9, wherein The battery cell transmission line is a circular transmission loop, and there are two or more moving parts, each of which can move independently on the conveying track. The housing detection device is arranged beside the conveying track, and the first gripper and the second gripper are arranged at intervals in the direction of movement of the moving parts. The battery cell has a wide side and a narrow side, and the first gripper and the second gripper are used to hold the narrow side of the battery cell so that the wide side of the battery cell faces the housing detection device.

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