CN219475790U

CN219475790U - Battery detection equipment

Info

Publication number: CN219475790U
Application number: CN202223555468.6U
Authority: CN
Inventors: 唐俊; 龙伟; 刘威; 陈琨; 王志伟
Original assignee: Shenzhen Hero Laser Equipment Co ltd
Current assignee: Shenzhen Hero Laser Equipment Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-08-04
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses battery detection equipment, which is used for detecting a battery module to be detected, wherein the battery module to be detected comprises two end plates and a plurality of electric cores, wherein the two end plates are arranged at intervals along a first direction; the battery detection equipment comprises a frame, a workbench, an adjusting mechanism, a pressing mechanism and a detection mechanism, wherein the workbench is in sliding connection with the frame, the whole mechanism is connected with the frame and arranged on at least one side of the battery cell along the second direction, the pressing mechanism is connected with the workbench, and the detection mechanism is in sliding connection with the frame and is located on one side of the pressing mechanism along the second direction. In the initial state, the workbench is positioned at a feeding position, the end plate and the battery cell are placed on the workbench, and the end plate and the battery cell are orderly arranged in a first direction by the adjusting mechanism; after the end plate and the battery core are compressed by the compressing mechanism, the adjusting mechanism loosens the battery module to be tested; then the workbench moves to the detection position, and the detection mechanism detects the polarity of each battery cell, so that the purpose of detecting the polarity of the battery cell in the battery assembly process is achieved.

Description

Battery detection equipment

Technical Field

The utility model relates to the field of automatic production of power batteries, in particular to battery detection equipment.

Background

In recent years, the new energy automobile industry has developed rapidly, and the power battery modules required by the new energy automobile industry have increased.

At present, a module pressing mechanism is mostly adopted for assembling the square shell battery to clamp and limit the battery module, and a side plate assembling mechanism is used for pressing and attaching a side plate to the side surface of the battery module to complete the assembly of the square shell battery. The assembled square shell battery is not easy to disassemble, and if polarity is wrong in the assembly process of the square shell battery, the disassembly is difficult, so that the production efficiency is affected.

Therefore, it is necessary to provide a new battery detection apparatus to solve the above technical problems.

Disclosure of Invention

The utility model mainly aims to provide battery detection equipment, which aims to solve the problem that battery polarity is easy to make mistakes in the battery assembly process.

In order to achieve the above object, the present utility model provides a battery detection device for detecting a battery module to be detected, the battery module to be detected includes two end plates arranged at intervals along a first direction and a plurality of electric cores located between the two end plates; the battery detection apparatus includes: the device comprises a frame, a workbench, an adjusting mechanism, a pressing mechanism and a detecting mechanism, wherein the workbench is in sliding connection with the frame, the workbench is used for bearing the end plate and the battery cell, and the workbench can move between a feeding position and a detecting position; the adjusting mechanism is connected with the rack and is arranged on at least one side of the battery cell along the second direction; the compressing mechanism is connected with the workbench and used for compressing the end plate and the battery cell; the detection mechanism is in sliding connection with the rack, is positioned at one side of the pressing mechanism along the second direction, and is used for detecting the polarity of each battery cell when the battery module to be detected is positioned at the detection position; wherein the second direction is perpendicular to the first direction.

Optionally, the number of the adjusting mechanisms is two, and the two adjusting mechanisms are respectively arranged at two sides of the workbench along the second direction; each adjustment mechanism comprises a connecting seat, a first driving piece and a pressing plate assembly, wherein the connecting seat is connected with the frame, the first driving piece is connected with the connecting seat, the pressing plate assembly is positioned on one side of the connecting seat facing the battery cell, and the output end of the first driving piece is connected with the pressing plate assembly to drive the pressing plate assembly to reciprocate along a second direction.

Optionally, the pressing plate assembly includes a substrate, a first adjusting plate, a second adjusting plate, a first screw and a second screw, the substrate is connected with an output end of the first driving piece, the first adjusting plate and the second adjusting plate are both connected with the substrate, a plugging slot is formed in one side of the first adjusting plate, which faces the second adjusting plate, a plugging arm is formed in one side of the second adjusting plate, which faces the first adjusting plate, and the plugging slot is matched with the plugging arm; the first screw penetrates through the base plate to be in threaded connection with the first adjusting plate, the second screw penetrates through the base plate to be in threaded connection with the second adjusting plate, and the first screw and the second screw are both in sliding connection with the connecting seat.

Optionally, the first adjusting plate is concave in shape, the second adjusting plate is convex in shape, and the first adjusting plate and the second adjusting plate are matched in shape.

Optionally, the pressing mechanism includes a fixed plate, a moving plate, a first guide rail and a driving assembly, the fixed plate and the moving plate are located at two sides of the end plate along a first direction, and the fixed plate is connected with the workbench; the driving assembly and the moving plate are positioned on the same side of the end plate, the first guide rail is arranged on the workbench along a first direction, the output end of the driving assembly is connected with the moving plate, and the driving assembly is used for driving the moving plate to move along a direction close to or far away from the fixed plate on the first guide rail.

Optionally, the drive assembly includes second driving piece, connecting rod and guide holder, the guide holder with the second driving piece is located the movable plate deviates from one side of fixed plate, the guide holder with the workstation is connected and is located the movable plate with between the second driving piece, the connecting rod passes the guide holder with the output of second driving piece with the movable plate is connected, the connecting rod with guide holder sliding connection, the second driving piece is used for the drive the connecting rod is close to or keeps away from in order to drive the movable plate the fixed plate.

Optionally, the driving assembly further comprises a driving frame and a second guide rail, the second guide rail is arranged on the frame along the first direction, the driving frame is in sliding connection with the second guide rail, and the driving frame is connected with the second driving piece; the connecting rod is a screw rod, a threaded hole is formed in the guide seat, and the connecting rod is in threaded fit connection with the threaded hole; the second driving piece drives the connecting rod to rotate so as to drive the driving frame and the moving plate to be close to or far away from the fixed plate.

Optionally, the hold-down mechanism still includes sensor and baffle, the detection end of sensor set up in the movable plate deviates from the one side of fixed plate, the baffle with the connecting rod rotates to be connected, the sensor is used for detecting the movable plate with pressure between the baffle.

Optionally, detection mechanism includes detection head, link, third guide rail and third driving piece, the third guide rail with the frame is connected, the link with third guide rail sliding connection, the third driving piece with the frame is connected, the output of third driving piece with the link is connected with the drive the link is along the reciprocal removal of first direction, the detection head with the link is connected, the detection head with wait to detect position shape phase-match of electric core, the detection head is used for detecting a plurality of electric core's polarity in proper order.

Optionally, a fourth driving piece and a fourth guide rail along the first direction are arranged on the frame, an output end of the fourth driving piece is connected with the workbench, and the workbench is in sliding connection with the fourth guide rail.

In the technical scheme of the utility model, the workbench is positioned at a feeding position, the two end plates and the plurality of electric cores are placed on the workbench, and the two end plates and the plurality of electric cores are orderly arranged in a first direction by the adjusting mechanism; the compressing mechanism compresses the two end plates and the plurality of battery cells, simulates the assembled state of the battery module, and the adjusting mechanism loosens the battery module to be tested; then the workbench moves to a detection position, and the detection mechanism detects the polarity of each battery cell. The battery detection equipment can detect the polarity of the battery core in the battery assembly process, the battery core and the end plate are not fixed at the moment, if the polarity of the battery core is detected in error, the battery module is not required to be disassembled and assembled, and the position of the battery core can be adjusted only by loosening the end plate and the battery core through the pressing mechanism, so that the production efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a top view of a battery testing apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a battery detection device according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a pressing mechanism according to an embodiment of the present utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				1	Rack	44	Driving assembly
21	Working table	441	Second driving member
				22	Fourth driving piece	442	Connecting rod
23	Fourth guide rail	443	Guide seat
				3	Adjusting mechanism	444	Driving rack
31	Connecting seat	445	Second guide rail
				32	First driving member	45	Sensor for detecting a position of a body
33	Platen assembly	46	Baffle plate
				331	Substrate board	5	Detection mechanism
332	First adjusting plate	51	Detection head
				333	Second adjusting plate	52	Connecting frame
334	First screw	53	Third guide rail
				335	Second screw	54	Third driving member
4	Compressing mechanism	6	Battery module to be inspected
				41	Fixing plate	61	End plate
42	Movable plate	62	Battery cell
				43	First guide rail

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. 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.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in fig. 1), and if the specific posture is changed, the directional indicators are changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

The utility model provides battery detection equipment, and aims to solve the problem that battery polarity is easy to make mistakes in the battery assembly process.

As shown in fig. 1, the first direction is the front-rear direction, and the second direction is the left-right direction.

As shown in fig. 1 to 3, the battery detection equipment is used for detecting a battery module 6 to be detected, and the battery module 6 to be detected includes two end plates 61 arranged at intervals along a first direction and a plurality of electric cells 6262 located between the two end plates 61; the battery detection equipment includes: the device comprises a frame 1, a workbench 21, an adjusting mechanism 3, a pressing mechanism 4 and a detecting mechanism 5, wherein the workbench 21 is in sliding connection with the frame 1, the workbench 21 is used for bearing an end plate 61 and a battery cell 6262, and the workbench 21 can move between a feeding position and a detecting position; the adjusting mechanism 3 is connected with the frame 1, and the adjusting mechanism 3 is arranged on at least one side of the battery cell 6262 along the second direction; the pressing mechanism 4 is connected with the workbench 21, and the pressing mechanism 4 is used for pressing the end plate 61 and the battery cell 6262; the detection mechanism 5 is in sliding connection with the frame 1, the detection mechanism 5 is positioned at one side of the pressing mechanism 4 along the second direction, and the detection mechanism 5 is used for detecting the polarity of each battery cell 62 when the battery module 6 to be detected is positioned at the detection position; wherein the second direction is perpendicular to the first direction.

The workbench 21 is positioned at a loading position, two end plates 61 and a plurality of battery cells 62 are placed on the workbench 21, and the two end plates 61 and the plurality of battery cells 62 are orderly arranged in the front-back direction by the adjusting mechanism 3; the pressing mechanism 4 presses the two end plates 61 and the plurality of battery cells 62 to simulate the assembled state of the battery module, and the adjusting mechanism 3 releases the battery module to be tested; subsequently, the workbench 21 moves to the detection position, and the detection mechanism 5 detects the polarity of each cell 62, so as to achieve the purpose of detecting the polarity of the cell 62 in the battery assembly process. According to the technical scheme, the polarity of the battery cell can be detected in the battery assembly process, the battery cell and the end plate are not fixed at the moment, if the polarity of the battery cell is detected in error, the battery module is not required to be disassembled and assembled, and the position of the battery cell can be adjusted only by loosening the end plate and the battery cell through the pressing mechanism, so that the production efficiency is improved.

Wherein, the number of the adjusting mechanisms 3 is two, and the two adjusting mechanisms 3 are respectively arranged at two sides of the workbench 21 along the second direction; each adjusting mechanism 3 comprises a connecting seat 31, a first driving piece 32 and a pressing plate assembly 33, wherein the connecting seat 31 is connected with the frame 1, the first driving piece 32 is connected with the connecting seat 31, the pressing plate assembly 33 is positioned on one side of the connecting seat 31 facing the battery cell 62, and the output end of the first driving piece 32 is connected with the pressing plate assembly 33 to drive the pressing plate assembly 33 to reciprocate along the second direction.

When the two adjusting mechanisms 3 are arranged, the two pressing plate assemblies 33 move left and right oppositely to adjust the positions of the end plate 61 and the battery cell 62; the two pressing plate assemblies 33 move left and right away from each other, so that the end plate 61 and the battery cell 62 can be loosened; the first driving piece 32 drives the pressing plate assembly 33 to be abutted against the left and right ends of the end plate 61 and the battery cell 62, and the end plate 61 and the battery cell 62 are tidily arranged for subsequent compression; after compression, the first drive member 32 drives the platen assembly 33 away from the end plate 61 and the battery cell 62. The adjusting mechanism 3 has a simple structure and can conveniently adjust the positions of the end plate 61 and the battery cell 62 to align while meeting the adjusting requirement. In other embodiments, the number of the adjusting mechanisms 3 may be one, and in this case, a positioning plate may be disposed on the other side of the end plate 61 and the battery cell 62 corresponding to the adjusting mechanism 3, the positions of the end plate 61 and the battery cell 62 may be adjusted by moving the pressing plate assembly 33 toward the positioning plate, and the end plate 61 and the battery cell 62 may be released by moving the pressing plate assembly 33 away from the positioning plate.

The pressing plate assembly 33 comprises a base plate 331, a first adjusting plate 332, a second adjusting plate 333, a first screw 334 and a second screw 335, wherein the base plate 331 is connected with the output end of the first driving piece 32, the first adjusting plate 332 and the second adjusting plate 333 are both connected with the base plate 331, a plugging slot is formed in one side of the first adjusting plate 332 facing the second adjusting plate 333, a plugging arm is formed in one side of the second adjusting plate 333 facing the first adjusting plate 332, and the plugging slot is matched with the plugging arm; the first screw 334 passes through the base plate 331 to be in threaded connection with the first adjusting plate 332, the second screw 335 passes through the base plate 331 to be in threaded connection with the second adjusting plate 333, and the first screw 334 and the second screw 335 are both in sliding connection with the connecting seat 31.

The plugging arm of the second adjusting plate 333 is inserted into the plugging slot of the first adjusting plate 332, the first screw 334 is rotated to enable the first adjusting plate 332 to move forwards and backwards, the second screw 335 is rotated to enable the second adjusting plate 333 to move forwards and backwards, and when the plugging arm part of the second adjusting plate 333 is separated from the plugging slot of the first adjusting plate 332, the first adjusting plate 332 and the second adjusting plate 333 are ensured to be overlapped in the height direction all the time, so that the reference surfaces for aligning a plurality of electric cores are determined; the length of the pressing plate assembly 33 in the front-back direction is elongated, so that the battery module 6 to be detected is assembled with different numbers of the battery cells 62 or different front-back lengths of the battery cells 62, and the universality of battery detection equipment is improved.

Specifically, the first adjustment plate 332 is concave in shape, the second adjustment plate 333 is convex in shape, and the first adjustment plate 332 and the second adjustment plate 333 are in shape-fit.

The convex shape of the second adjusting plate 333 is inserted into the concave shape of the first adjusting plate 332, and the front-rear length needs to be increased to accommodate the number of the battery cells 62 to be increased or the battery modules 6 to be inspected, which have longer front-rear lengths of the battery cells 62, are required; the first adjusting plate 332 and the second adjusting plate 333 may be two stepped plates, and the stepped sides are relatively matched and can move back and forth, so as to adapt to the assembly of the battery modules 6 to be detected with different numbers of the battery cores 62 or different lengths of the battery cores 62, and increase the universality of the battery detection equipment.

Wherein, the hold-down mechanism 4 comprises a fixed plate 41, a movable plate 42, a first guide rail 43 and a driving component 44, the fixed plate 41 and the movable plate 42 are positioned at two sides of the end plate 61 along the first direction, and the fixed plate 41 is connected with the workbench 21; the driving assembly 44 and the moving plate 42 are located on the same side of the end plate 61, the first guide rail 43 is disposed on the workbench 21 along the first direction, an output end of the driving assembly 44 is connected with the moving plate 42, and the driving assembly 44 is used for driving the moving plate 42 to move on the first guide rail 43 along a direction approaching or separating from the fixed plate 41.

The left-right length of the fixed plate 41 and the movable plate 42 is smaller than the left-right length of the end plate 61 and the cell 62, avoiding interference with the platen assembly 33 when the adjustment mechanism 3 adjusts the positions of the end plate 61 and the cell 62. The compressing mechanism 4 has a simple structure while meeting the compressing requirement, and is convenient to compress the front end plate 61, the rear end plate 61 and the battery cell 62 therebetween.

Specifically, the driving assembly 44 includes a second driving member 441, a connecting rod 442, and a guide seat 443, the guide seat 443 and the second driving member 441 are located on a side of the moving plate 42 facing away from the fixed plate 41, the guide seat 443 is connected to the table 21 and located between the moving plate 42 and the second driving member 441, the connecting rod 442 passes through the guide seat 443 to be connected to an output end of the second driving member 441 and the moving plate 42, the connecting rod 442 is slidably connected to the guide seat 443, and the second driving member 441 is used for driving the connecting rod 442 to drive the moving plate 42 to approach or separate from the fixed plate 41.

The guide seat 443 supports the guide bar to move, so that the movement of the moving plate 42 is more stable; the length of the guide rod is correspondingly selected according to the moving distance of the moving plate 42, and compared with the scheme that the output end of the second driving member 441 is directly connected with the moving plate 42, the scheme can increase the moving distance of the moving plate 42.

The driving assembly 44 further comprises a driving frame 444 and a second guide rail 445, the second guide rail 445 is arranged on the frame 1 along the first direction, the driving frame is slidably connected with the second guide rail, and the driving frame 444 is connected with the second driving piece 441; the connecting rod 442 is a screw rod, a threaded hole is formed in the guide seat 443, and the connecting rod 442 is in threaded fit connection with the threaded hole; the second driving member 441 drives the connecting rod 442 to rotate to drive the driving frame 444 and the moving plate 42 to approach or separate from the fixed plate 41.

When the second driving member 441 is a compression cylinder or a linear motor, the output end of the second driving member 441 is directly connected with the connecting rod 442 to drive the moving plate 42 to reciprocate back and forth, so as to compress and loosen the battery cell 62; when the second driving member 441 is a motor, the output end of the second driving member 441 drives the connecting rod 442 provided with external threads to rotate, the external threads of the connecting rod 442 are matched with the internal threads of the guide seat 443 to drive the moving plate 42 to reciprocate back and forth, and meanwhile, the driving frame 444 drives the motor to synchronously move along the second guide rail 445. The second driving member 441 moves synchronously with the moving plate 42, ensuring the consistency of the movement, and making the movement of the moving plate 42 more precise and stable.

The pressing mechanism 4 further includes a sensor 45 and a baffle 46, the detection end of the sensor 45 is disposed on one side of the moving plate 42 away from the fixed plate 41, the baffle 46 is rotationally connected with the connecting rod 442, and the sensor 45 is used for detecting pressure between the moving plate 42 and the baffle 46. The sensor 45 can monitor the pressing force in real time, and when the pressing force reaches the preset value, the second driving member 441 stops driving the moving plate 42 to move, so as to prevent the battery cell 62 from being damaged due to excessive pressing force.

The detecting mechanism 5 includes a detecting head 51, a connecting frame 52, a third guide rail 53 and a third driving member 54, the third guide rail 53 is connected with the frame 1, the connecting frame 52 is slidably connected with the third guide rail 53, the third driving member 54 is connected with the frame 1, an output end of the third driving member 54 is connected with the connecting frame 52 to drive the connecting frame 52 to reciprocate along a first direction, the detecting head 51 is connected with the connecting frame 52, the detecting head 51 is matched with a shape of a part to be detected of the battery cell 62, and the detecting head 51 is used for sequentially detecting polarities of the battery cells 62.

The third driving piece 54 drives the connecting frame 52 to drive the detection head 51 to move back and forth on the third guide rail 53, so that the detection head 51 sequentially moves to the part to be detected of each cell 62, and the polarity of each cell 62 is conveniently detected by the detection head 51 sequentially.

Specifically, the frame 1 is provided with a fourth driving member 22 and a fourth guide rail 23 along the first direction, an output end of the fourth driving member 22 is connected to the table 21, and the table 21 is slidably connected to the fourth guide rail 23.

The fourth driving piece 22 drives the workbench 21 to reciprocate along the fourth guide rail 23 between the feeding position and the detection position, so that the feeding position and the detection position are distinguished, mutual interference in the moving process of the adjusting mechanism 3 and the detection mechanism 5 is avoided, and battery detection equipment is damaged.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A battery detection device for detecting a battery module to be detected, wherein the battery module to be detected comprises two end plates arranged at intervals along a first direction and a plurality of electric cores positioned between the two end plates; characterized in that the battery detection equipment comprises:

a frame;

the workbench is in sliding connection with the rack, the workbench is used for bearing the end plate and the battery cell, and the workbench can move between a feeding position and a detection position;

the adjusting mechanism is connected with the rack and is arranged on at least one side of the battery cell along the second direction;

the compressing mechanism is connected with the workbench and used for compressing the end plate and the battery cell;

the detection mechanism is in sliding connection with the rack, is positioned at one side of the pressing mechanism along the second direction, and is used for detecting the polarity of each battery cell when the battery module to be detected is positioned at the detection position; wherein the second direction is perpendicular to the first direction.

2. The battery detection apparatus according to claim 1, wherein the number of the adjustment mechanisms is two, and the two adjustment mechanisms are respectively provided on both sides of the table in the second direction; each adjustment mechanism comprises a connecting seat, a first driving piece and a pressing plate assembly, wherein the connecting seat is connected with the frame, the first driving piece is connected with the connecting seat, the pressing plate assembly is positioned on one side of the connecting seat facing the battery cell, and the output end of the first driving piece is connected with the pressing plate assembly to drive the pressing plate assembly to reciprocate along a second direction.

3. The battery detection apparatus according to claim 2, wherein the pressure plate assembly includes a base plate, a first adjusting plate, a second adjusting plate, a first screw, and a second screw, the base plate is connected to an output end of the first driving member, the first adjusting plate and the second adjusting plate are both connected to the base plate, a plugging groove is provided on a side of the first adjusting plate facing the second adjusting plate, a plugging arm is provided on a side of the second adjusting plate facing the first adjusting plate, and the plugging groove is engaged with the plugging arm; the first screw penetrates through the base plate to be in threaded connection with the first adjusting plate, the second screw penetrates through the base plate to be in threaded connection with the second adjusting plate, and the first screw and the second screw are both in sliding connection with the connecting seat.

4. The battery testing apparatus of claim 3, wherein the first adjustment plate is concave in shape and the second adjustment plate is convex in shape, the first adjustment plate and the second adjustment plate being cooperatively shaped.

5. The battery testing apparatus of claim 1, wherein the hold-down mechanism comprises a fixed plate, a movable plate, a first rail, and a drive assembly, the fixed plate and the movable plate being positioned on both sides of the end plate in a first direction, the fixed plate being connected to the table; the driving assembly and the moving plate are positioned on the same side of the end plate, the first guide rail is arranged on the workbench along a first direction, the output end of the driving assembly is connected with the moving plate, and the driving assembly is used for driving the moving plate to move along a direction close to or far away from the fixed plate on the first guide rail.

6. The battery testing apparatus of claim 5, wherein the drive assembly includes a second drive member, a connecting rod, and a guide holder, the guide holder and the second drive member being located on a side of the moving plate facing away from the fixed plate, the guide holder being connected to the table and located between the moving plate and the second drive member, the connecting rod passing through the guide holder and being connected to an output end of the second drive member and the moving plate, the connecting rod being slidably connected to the guide holder, the second drive member being configured to drive the connecting rod to drive the moving plate toward or away from the fixed plate.

7. The battery testing apparatus of claim 6, wherein the drive assembly further comprises a drive rack and a second rail, the second rail disposed on the frame in a first direction, the drive rack slidably coupled to the second rail, the drive rack coupled to the second drive member;

the connecting rod is a screw rod, a threaded hole is formed in the guide seat, and the connecting rod is in threaded fit connection with the threaded hole; the second driving piece drives the connecting rod to rotate so as to drive the driving frame and the moving plate to be close to or far away from the fixed plate.

8. The battery testing apparatus of claim 7, wherein the hold-down mechanism further comprises a sensor and a baffle, the sensing end of the sensor being disposed on a side of the moving plate facing away from the fixed plate, the baffle being rotatably connected to the connecting rod, the sensor being configured to sense a pressure between the moving plate and the baffle.

9. The battery detection apparatus according to any one of claims 1 to 8, wherein the detection mechanism includes a detection head, a connection frame, a third guide rail, and a third driving member, the third guide rail is connected with the frame, the connection frame is slidably connected with the third guide rail, the third driving member is connected with the frame, an output end of the third driving member is connected with the connection frame to drive the connection frame to reciprocate in a first direction, the detection head is connected with the connection frame, the detection head is matched with a shape of a portion to be detected of the battery cell, and the detection head is used for sequentially detecting polarities of a plurality of the battery cells.

10. The battery testing apparatus according to any one of claims 1 to 8, wherein a fourth driving member and a fourth guide rail in the first direction are provided on the frame, an output end of the fourth driving member is connected to the table, and the table is slidably connected to the fourth guide rail.