Accumulator plate strength detection device

Abstract

The invention belongs to the technical field of storage battery electrode plate detection, and particularly relates to a storage battery electrode plate strength detection device, which comprises a base, the upper side wall of the base is fixedly connected with a universal testing machine and a control cabinet, and the storage battery electrode plate strength detection device also comprises: a chuck assembly, which is fixedly connected to the mobile end of the universal testing machine and is used for clamping an adhesive tape; and the first clamp assembly is fixedly connected to the upper side wall of the base, is positioned in front of the universal testing machine and is used for clamping the polar plate. Before the adhesive tape is pasted on the surface of the polar plate, protruding lead paste on the surface of the polar plate can be automatically polished to be flat, the problem that bubbles are generated between the adhesive tape and the polar plate due to the protruding lead paste is avoided, the bubbles generated in the manual pasting process can be automatically eliminated, manual extrusion through a pressing roller is not needed, and the production efficiency is improved. The adhesive tape pasting effect is guaranteed, and meanwhile the workload of operators is reduced.

Description

Technical Field

[0001] This invention belongs to the field of battery plate testing technology, and in particular relates to a battery plate strength testing device. Background Technology

[0002] The purpose of peel strength testing on battery plates is to assess the bonding strength between the active material on the plate surface and the substrate, thereby ensuring the performance, lifespan, and safety of the battery. For example, a peel strength testing device is proposed in patent publication number CN112033899A.

[0003] In the peel strength test of battery plates, tape is first pasted onto the plate surface, and then one end of the tape is clamped by a testing machine and pulled upward at a specific speed. At the same time, the force value change during the peeling process is recorded in real time. However, if the lead paste on the plate surface protrudes due to process problems, or if the tape is not pasted properly, air bubbles may form between the tape and the plate. Since the air bubble area cannot effectively transmit the tensile force, the peel force test value will be lower, thus affecting the test accuracy. The traditional method of correction is to manually squeeze the tape multiple times with a pressure roller after pasting it. However, this method often has the problem of incomplete squeezing, resulting in air bubble residue, which makes it difficult to solve the above-mentioned error risks.

[0004] To address this issue, a battery plate strength testing device is proposed. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a battery plate strength testing device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a battery plate strength testing device, comprising a base, wherein a universal testing machine and a control cabinet are fixedly connected to the upper side wall of the base, and further comprising: The chuck assembly is fixedly connected to the moving end of the universal testing machine and is used for clamping the tape. The first clamping assembly is fixedly connected to the upper side wall of the base and is located in front of the universal testing machine for clamping the electrode plate. The processing component, fixedly connected to the upper side wall of the base and located on the left side of the universal testing machine, is used for surface treatment of the electrode plates; The second clamping assembly is fixedly connected to the upper side wall of the base and is located below the processing assembly.

[0007] Preferably, the clamp assembly includes a clamping frame fixedly connected to the moving end of the universal testing machine. Threaded pins are threaded to both the left and right sides of the clamping frame. A clamping block is rotatably connected to one end of each of the two threaded pins. An angle frame is fixedly connected to the lower side wall of the left clamping block. A pivot pin is rotatably connected to the inner wall of the angle frame. The pivot pin is connected to the angle frame via a torsion spring. An angle plate is fixedly sleeved on the rod wall of the pivot pin. A connecting pin is fixedly connected to the side wall of the angle plate. A ball bearing is fixedly connected to the end of the connecting pin away from the angle plate. Two first pressure sensors located on both sides of the angle plate are fixedly connected to the inner wall of the angle frame. Both first pressure sensors are electrically connected to the control cabinet.

[0008] Preferably, the first clamping assembly includes a first linear module fixedly connected to the upper side wall of the base. The movable end of the first linear module is fixedly connected to a movable seat. The upper side wall of the movable seat is fixedly connected to two bent plates. The side wall of the bent plates is threaded with a threaded post. The lower end of the threaded post is fixedly connected to a pressure plate. The upper end of the threaded post is fixedly connected to a screw plate.

[0009] Preferably, the processing assembly includes a processing frame fixedly connected to the upper side wall of the base. A vertical electric push rod is fixedly connected to the upper side wall of the processing frame. The moving end of the vertical electric push rod is fixedly connected to a lifting frame via a second pressure sensor. An angle motor is fixedly connected to the right side wall of the lifting frame. The output end of the angle motor passes through the lifting frame and is connected to a second linear module. The end of the second linear module away from the angle motor is rotatably connected to the inner wall of the lifting frame. A frame is fixedly connected to the moving end of the second linear module. A laser thickness probe is fixedly connected to the lower side wall of the frame. The laser thickness probe is electrically connected to the control cabinet. An electric polishing machine is fixedly connected to the front side wall of the frame. A defoaming assembly is connected to the rear side wall of the frame.

[0010] Preferably, the defoaming assembly includes a bidirectional threaded mechanism fixedly connected to the rear side wall of the frame. Both moving ends of the bidirectional threaded mechanism are connected to scrapers. The scrapers are hollow and have dust removal ports on their side walls. An empty box is fixedly connected to the rear side wall of the frame. A high-pressure air pump is fixedly connected to the inner rear wall of the frame. The outlet of the high-pressure air pump is connected to the empty box. A square tube is connected to the rear side wall of the empty box. The tube walls on both sides of the square tube are connected to the scrapers through elastic telescopic tubes.

[0011] Preferably, the second clamping assembly includes a baffle and a placement plate fixedly connected to the upper side wall of the base. The side wall of the placement plate is connected to a transverse electric push rod, and the moving end of the transverse electric push rod is fixedly connected to a push plate via a third pressure sensor.

[0012] Preferably, the sidewalls of the angle frame and the angle plate are provided with limit holes, and a limit bracket is inserted into the limit holes.

[0013] Preferably, a guide cylinder is fixedly connected to the upper side wall of the clamping block, and a guide pin that matches the guide cylinder is fixedly connected to the inner wall of the clamping frame.

[0014] Compared with existing technologies, the advantages of a battery plate strength testing device are: 1. With the set processing and defoaming components, the raised lead paste on the electrode surface can be automatically smoothed before the tape is pasted onto the electrode surface, avoiding the problem of air bubbles between the tape and the electrode caused by the raised lead paste. It can also automatically eliminate air bubbles generated during manual pasting without the need for manual squeezing with a pressure roller. While ensuring the tape pasting effect, it also reduces the workload of operators.

[0015] 2. With the set clamp assembly, when the universal testing machine pulls one end of the tape to peel it off, it can automatically detect the accuracy of the peeling angle. When the tape peeling angle changes due to equipment factors, the device can promptly remind the operator to adjust the equipment, further ensuring the accuracy of the test results.

[0016] 3. With the help of the defoaming components, empty box and high-pressure air pump, the dust remaining after grinding can be automatically cleaned when grinding the raised areas of lead paste on the surface of the electrode plate, thus avoiding the problem of residual dust affecting the adhesion strength of the tape. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a battery plate strength testing device provided by the present invention; Figure 2 This is a schematic diagram of the clamp assembly in a battery plate strength testing device provided by the present invention; Figure 3 This is a schematic diagram of the surface structure of the frame in a battery plate strength testing device provided by the present invention; Figure 4 This is a schematic diagram of the defoaming component in a battery plate strength testing device provided by the present invention; Figure 5 This is a schematic diagram of the surface structure of the angle frame in a battery plate strength testing device provided by the present invention; Figure 6 This is a schematic diagram of the surface structure of the angle plate in a battery plate strength testing device provided by the present invention.

[0018] In the diagram: 1. Base; 2. Universal testing machine; 3. Control cabinet; 4. Chuck assembly; 401. Clamping frame; 402. Threaded pin; 5. Clamping block; 6. Angle frame; 7. Turning pin; 8. Angle plate; 9. Connecting pin; 10. Ball bearing; 11. First pressure sensor; 12. First fixture assembly; 121. First linear module; 122. Moving seat; 13. Bending plate; 14. Threaded column; 15. Pressure plate; 16. Tightening plate; 17. Processing assembly; 171. Processing frame; 172. Vertical electric push rod; 18. Lifting frame; 1 9 Angle motor, 20 Second linear module, 21 Frame, 22 Laser thickness probe, 23 Electric polishing machine, 24 Defoaming assembly, 241 Bidirectional thread mechanism, 242 Scraper, 25 Dust removal port, 26 Empty box, 27 High-pressure air pump, 28 Square tube, 29 Second clamping assembly, 291 Baffle, 292 Placement plate, 30 Horizontal electric push rod, 31 Third pressure sensor, 32 Push plate, 33 Limiting frame, 34 Guide cylinder, 35 Guide pin, 36 Second pressure sensor. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] like Figures 1-6 As shown, a battery plate strength testing device includes a base 1, a universal testing machine 2 and a control cabinet 3 fixedly connected to the upper side wall of the base 1, and further includes: The chuck assembly 4 is fixedly connected to the moving end of the universal testing machine 2 and is used for clamping the tape. The chuck assembly 4 includes a clamping frame 401 fixedly connected to the moving end of the universal testing machine 2. Threaded pins 402 are threadedly connected to both the left and right sides of the clamping frame 401. Clamping blocks 5 are rotatably connected to one end of each of the two threaded pins 402. A guide cylinder 34 is fixedly connected to the upper side wall of the clamping block 5. A guide pin 35 that matches the guide cylinder 34 is fixedly connected to the inner wall of the clamping frame 401. An angle frame 6 is fixedly connected to the lower side wall of the left clamping block 5. The inner wall of the angle frame 6 is rotatably connected to... There is a pivot pin 7, which is connected to the angle frame 6 via a torsion spring. Angle plate 8 is fixedly sleeved on the rod wall of pivot pin 7. Limiting holes are opened on the side walls of angle frame 6 and angle plate 8, and limiting brackets 33 are inserted into the limiting holes. A connecting pin 9 is fixedly connected to the side wall of angle plate 8. A ball bearing 10 is fixedly connected to the end of connecting pin 9 away from angle plate 8. Two first pressure sensors 11 located on both sides of angle plate 8 are fixedly connected to the inner wall of angle frame 6. Both first pressure sensors 11 are electrically connected to control cabinet 3, which can clamp one end of tape and detect the angle of tape. The first clamping assembly 12 is fixedly connected to the upper side wall of the base 1 and located in front of the universal testing machine 2. It is used to clamp the electrode plate. The first clamping assembly 12 includes a first linear module 121 fixedly connected to the upper side wall of the base 1. A movable seat 122 is fixedly connected to the movable end of the first linear module 121. Two bent plates 13 are fixedly connected to the upper side wall of the movable seat 122. A threaded post 14 is threadedly connected to the side wall of the bent plate 13. A pressure plate 15 is fixedly connected to the lower end of the threaded post 14. A screw plate 16 is fixedly connected to the upper end of the threaded post 14. It can automatically clamp the electrode plate during the peel strength test of the electrode plate. The processing assembly 17 is fixedly connected to the upper side wall of the base 1 and located on the left side of the universal testing machine 2. It is used for surface treatment of the electrode plates. The processing assembly 17 includes a processing frame 171 fixedly connected to the upper side wall of the base 1. A vertical electric push rod 172 is fixedly connected to the upper side wall of the processing frame 171. The moving end of the vertical electric push rod 172 is fixedly connected to a lifting frame 18 through a second pressure sensor 36. An angle motor 19 is fixedly connected to the right side wall of the lifting frame 18. The output end of the angle motor 19 passes through the lifting frame. 18, and connected to a second linear module 20, the end of the second linear module 20 away from the angle motor 19 is rotatably connected to the inner wall of the lifting frame 18, the moving end of the second linear module 20 is fixedly connected to a frame 21, the lower side wall of the frame 21 is fixedly connected to a laser thickness probe 22, the laser thickness probe 22 is electrically connected to the control cabinet 3, the front side wall of the frame 21 is fixedly connected to an electric polishing machine 23, and the rear side wall of the frame 21 is connected to a defoaming component 24, which can polish the protruding lead paste on the surface of the electrode plate; The second clamping assembly 29 is fixedly connected to the upper side wall of the base 1 and located below the processing assembly 17. The second clamping assembly 29 includes a baffle 291 and a placement plate 292 fixedly connected to the upper side wall of the base 1. A transverse electric push rod 30 is connected to the side wall of the placement plate 292. The moving end of the transverse electric push rod 30 is fixedly connected to a push plate 32 through a third pressure sensor 31, which can clamp the electrode plate when the electrode plate is surface treated.

[0021] The defoaming assembly 24 includes a bidirectional threaded mechanism 241 fixedly connected to the rear side wall of the frame 21. Both moving ends of the bidirectional threaded mechanism 241 are connected to scrapers 242. The scrapers 242 are hollow structures, and the side walls of the scrapers 242 are provided with cleaning ports 25. An empty box 26 is fixedly connected to the rear side wall of the frame 21. A high-pressure air pump 27 is fixedly connected to the rear inner wall of the frame 21. The air outlet of the high-pressure air pump 27 is connected to the empty box 26. A square tube 28 is connected to the rear side wall of the empty box 26. The tube walls on both sides of the square tube 28 are connected to the scrapers 242 through elastic telescopic tubes, which can eliminate air bubbles between the tape and the electrode plate.

[0022] The operating principle of this invention is explained as follows: The operator places a suitable-sized electrode plate on the base 1, positioned between the push plate 32 and the baffle 291. Then, the operator sends an electrical signal to the control cabinet 3 via the touchscreen on its surface. Upon receiving this signal, the control cabinet 3 controls the horizontal electric push rod 30 to operate. The horizontal electric push rod 30 moves the push plate 32 via the third pressure sensor 31, using the push plate 32 and the baffle 291 to clamp and fix the electrode plate (when the control cabinet 3 detects through the third pressure sensor 31 that the compressive force between the push plate 32 and the electrode plate reaches a set threshold of 20N, the control cabinet 3 controls the horizontal electric push rod 30 to stop operating). Then, the control cabinet 3 controls... The vertical electric push rod 172 is activated. The vertical electric push rod 172 will drive the lifting frame 18, the second linear module 20, the frame 21 and the laser thickness probe 22 to move downward to a specified distance through the second pressure sensor 36, so that the distance between the laser thickness probe 22 and the electrode plate is 1cm. Then the control cabinet 3 controls the second linear module 20 to move, and uses the second linear module 20 to drive the frame 21 and the laser thickness probe 22 to move. The laser thickness probe 22 is used to detect the lead paste protrusion on the electrode plate surface. When the laser thickness probe 22 detects the lead paste protrusion on the electrode plate surface, the laser thickness probe 22 will send this information to the control cabinet 3, and the control cabinet 3 will record the position of the lead paste protrusion. After the electrode plate is completely inspected using the laser thickness probe 22, the control cabinet 3 controls the angle motor 19 to operate. The angle motor 19 drives the second linear module 20 and the frame 21 to rotate to a set angle, placing the electric polishing machine 23 downwards. Then, the control cabinet 3 controls the second linear module 20 to operate. The second linear module 20 drives the electric polishing machine 23 to move to the area of ​​the lead paste protrusion on the electrode plate surface via the frame 21. Then, the control cabinet 3 controls the electric polishing machine 23 and the vertical electric push rod 172 to operate. The vertical electric push rod 172 drives the lifting frame 18, the second linear module 20, and the electric polishing machine 23 together to move downwards to a set position (the moving position is related to the lead paste thickness on the electrode plate surface, which the operator can know from the electrode plate production process requirements). This moves the electric polishing machine 23 downwards to a state where the lead paste flat area on the electrode plate surface is flush. The lead paste protrusions are polished using an electric polisher 23. During polishing, the control cabinet 3 controls the second linear module 20 to move the electric polisher 23 back and forth within a small range to ensure the polishing effect of the lead paste protrusions. After polishing, the control cabinet 3 controls the vertical electric push rod 172 to move the lifting frame 18 upward to the initial position and controls the angle motor 19 to continue working. The angle motor 19 drives the defoaming component 24 to be placed downward. Then, the angle motor 19 controls the second linear module 20 and the defoaming component 24 to rotate back and forth within an angle range of 45° and controls the high-pressure air pump 27 to work. The high-pressure air pump 27 delivers external gas to the empty box 26 and delivers it to the two scrapers 242 through the elastic telescopic tube. The gas is then sprayed onto the electrode plate through the dust removal port 25 on the surface of the scraper 242 to remove the residual powder on the surface of the electrode plate for 30 seconds. After the dust removal work is completed, the control cabinet 3 will emit a "beep beep beep" prompt sound through its internal buzzer module. After hearing the prompt sound, the operator can stick the cut tape onto the surface of the electrode plate. After the operator has stuck the tape on, they need to send an electrical signal to the control cabinet 3 via the touch screen. After receiving the electrical signal, the control cabinet 3 will control the vertical electric push rod 172 to move the lifting frame 18 and the defoaming component 24 downward (at this time, the control cabinet 3 will control the defoaming component 24 to be directly below via the angle motor 19) until the defoaming component 24 contacts the tape on the surface of the electrode plate. When the control cabinet 3 detects through the second pressure sensor 36 that the contact force between the scraper 242 and the tape reaches the set threshold (10N), the control cabinet 3 will control... The vertical electric push rod 172 stops working, and then the control cabinet 3 controls the bidirectional thread mechanism 241 to work (the bidirectional thread mechanism 241 includes a working box, a bidirectional thread rod, two threaded cylinders, a moving block and a servo motor. The bidirectional thread rod is rotatably set in the working box. The output end of the servo motor is connected to the bidirectional thread rod. The two threaded cylinders are threaded on the outside of the bidirectional thread rod. When the bidirectional thread rod rotates, it can drive the two threaded cylinders to move towards each other or away from each other. The threaded cylinders drive the scraper block 242 to move through the moving block). The bidirectional thread mechanism 241 drives the two scraper blocks 242 to move slowly away from each other. The scraper blocks 242 drive the air bubbles that may exist between the tape and the electrode plate from the edge of the tape to avoid the air bubbles from affecting the test results. After the defoaming process is completed, the operator controls the vertical electric push rod 172 via the control cabinet 3 to move the lifting frame 18 upward to the initial position, and controls the horizontal electric push rod 30 to move the push plate 32 to the left. Then, the operator removes the electrode plate and places it on the surface of the moving seat 122. The operator then manually rotates the threaded column 14. Through the threaded engagement between the threaded end of the bent plate 13 and the threaded column 14, the threaded column 14 will move the pressure plate 15 downward. The pressure plate 15 then presses the electrode plate, thereby fixing the electrode plate on the universal testing machine 2. Next, the operator pulls up one end of the tape pre-reserved on the surface of the electrode plate and places it into the two clamping blocks 5. Then, the threaded pins 402 on both sides are rotated to control the movement of the clamping blocks 5 according to the above principle, and the two clamping blocks 5 are used to fix the pre-reserved end of the tape (by pulling the length of the tape, the distance between the pulled-up section of the tape and the electrode plate can be controlled to maintain a vertical distance). Then, the operator removes the limit frame 33 and controls the universal testing machine 2 and the first linear module 121 to work through the control cabinet 3 (the universal testing machine 2 will feed back the detected tension to the control cabinet 3). (Records are taken in cabinet 3). The universal testing machine 2 pulls one end of the tape upward through the clamp assembly 4, while the first linear module 121 moves the electrode plate to the right, keeping the tape and electrode plate perpendicular. At the same time, under the action of the torsion spring (the torsion spring applies a force of 0.5N to the pivot pin 7), the angle plate 8, connecting pin 9, and ball bearing 10 apply a certain compressive force to the tape (this compressive force is recorded by the universal testing machine 2 to avoid errors in the experiment caused by the compressive force). Since the tape and electrode plate are in a perpendicular state, the angle plate 8 should also be in a position where there is no interference. In the vertical position, when the universal testing machine 2 and the first linear module 121 move out of sync due to wear and aging of components, the angle between the tape and the electrode plate will change. Referring to the above principle, the angle plate 8 will also change. The angle plate 8 will apply a certain pressure to the first pressure sensor 11 on one side. After the control cabinet 3 detects the change in the first pressure sensor 11, it will control its own warning module to emit a "tap tap tap" warning sound to remind the operator to inspect and maintain the components, thus ensuring the working accuracy of the testing device.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A battery plate strength testing device, comprising a base (1), wherein a universal testing machine (2) and a control cabinet (3) are fixedly connected to the upper side wall of the base (1), characterized in that, Also includes: The clamp assembly (4) is fixedly connected to the moving end of the universal testing machine (2) and is used for clamping the tape; The first clamping assembly (12) is fixedly connected to the upper side wall of the base (1) and located in front of the universal testing machine (2) for clamping the electrode plate; The processing component (17) is fixedly connected to the upper side wall of the base (1) and located on the left side of the universal testing machine (2) for surface treatment of the electrode plate; The second clamping assembly (29) is fixedly connected to the upper side wall of the base (1) and is located below the processing assembly (17).

2. The battery plate strength testing device according to claim 1, characterized in that, The clamp assembly (4) includes a clamping frame (401) fixedly connected to the moving end of the universal testing machine (2). Threaded pins (402) are threadedly connected to both the left and right sides of the clamping frame (401). Clamping blocks (5) are rotatably connected to one end of each of the two threaded pins (402). An angle frame (6) is fixedly connected to the lower side wall of the clamping block (5) on the left side. A pivot pin (7) is rotatably connected to the inner wall of the angle frame (6). The pivot pin (7) is connected to the angle frame (6) through a torsion spring. An angle plate (8) is fixedly sleeved on the rod wall of the pivot pin (7). A connecting pin (9) is fixedly connected to the side wall of the angle plate (8). A ball bearing (10) is fixedly connected to the end of the connecting pin (9) away from the angle plate (8). Two first pressure sensors (11) located on both sides of the angle plate (8) are fixedly connected to the inner wall of the angle frame (6). Both first pressure sensors (11) are electrically connected to the control cabinet (3).

3. The battery plate strength testing device according to claim 1, characterized in that, The first clamp assembly (12) includes a first linear module (121) fixedly connected to the upper side wall of the base (1). The movable end of the first linear module (121) is fixedly connected to a movable seat (122). The upper side wall of the movable seat (122) is fixedly connected to two bent plates (13). The side wall of the bent plate (13) is threadedly connected to a threaded post (14). The lower end of the threaded post (14) is fixedly connected to a pressure plate (15). The upper end of the threaded post (14) is fixedly connected to a screw plate (16).

4. The battery plate strength testing device according to claim 1, characterized in that, The processing assembly (17) includes a processing frame (171) fixedly connected to the upper side wall of the base (1). A vertical electric push rod (172) is fixedly connected to the upper side wall of the processing frame (171). The moving end of the vertical electric push rod (172) is fixedly connected to a lifting frame (18) via a second pressure sensor (36). An angle motor (19) is fixedly connected to the right side wall of the lifting frame (18). The output end of the angle motor (19) passes through the lifting frame (18) and is connected to a second linear module (20). The second linear module (20) is rotatably connected to the inner wall of the lifting frame (18) at one end away from the angle motor (19). The moving end of the second linear module (20) is fixedly connected to a frame (21). A laser thickness probe (22) is fixedly connected to the lower side wall of the frame (21). The laser thickness probe (22) is electrically connected to the control cabinet (3). An electric polishing machine (23) is fixedly connected to the front side wall of the frame (21). A defoaming assembly (24) is connected to the rear side wall of the frame (21).

5. The battery plate strength testing device according to claim 4, characterized in that, The defoaming component (24) includes a bidirectional threaded mechanism (241) fixedly connected to the rear side wall of the frame (21). Both moving ends of the bidirectional threaded mechanism (241) are connected to scrapers (242). The scrapers (242) are hollow structures. The side wall of the scrapers (242) is provided with a dust removal port (25). The rear side wall of the frame (21) is fixedly connected to an empty box (26). The rear inner wall of the frame (21) is fixedly connected to a high-pressure air pump (27). The air outlet of the high-pressure air pump (27) is connected to the empty box (26). The rear side wall of the empty box (26) is connected to a square tube (28). The tube walls on both sides of the square tube (28) are connected to the scrapers (242) through elastic telescopic tubes.

6. The battery plate strength testing device according to claim 1, characterized in that, The second clamping assembly (29) includes a baffle (291) and a placement plate (292) fixedly connected to the upper side wall of the base (1). A transverse electric push rod (30) is connected to the side wall of the placement plate (292). The moving end of the transverse electric push rod (30) is fixedly connected to a push plate (32) through a third pressure sensor (31).

7. The battery plate strength testing device according to claim 2, characterized in that, Limiting holes are provided on the side walls of the angle frame (6) and the angle plate (8), and a limiting bracket (33) is inserted into the limiting hole.

8. The battery plate strength testing device according to claim 2, characterized in that, The upper side wall of the clamping block (5) is fixedly connected to a guide cylinder (34), and the inner wall of the clamping frame (401) is fixedly connected to a guide pin (35) that matches the guide cylinder (34).

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