Inspection tool for simulating ballasting of battery cell

Abstract

The utility model belongs to the technical field of battery production, and particularly relates to an inspection tool for simulating the weight of a battery cell, which comprises an inspection table, and one side of the inspection table is fixedly connected with a load bearing frame; the inner side of the load bearing frame is slidably connected with a lifting frame; chains are fixedly connected to two ends of the top end of the weight box; the top end of the chain is attached to the cross beam; a battery box is fixedly connected to the top end of the load-bearing frame. And the inner side of the battery box is fixedly connected with a bearing bracket. Through the structural matching design of the load bearing frame, the lifting frame, the weight box and the lifting mechanism assembly, an air cylinder in the lifting assembly is started, so that a telescopic rod on the inner side of the air cylinder drives a limiting block and the weight box connected to the limiting block to conduct height adjustment and product detection, compressed air is conveniently used as a power source, operation is convenient and fast, and practicability is high. The labor intensity of workers is reduced, the use distance of the weight box can be conveniently adjusted according to products of different batches and models, universality of multiple products is conveniently achieved, and the applicability of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery production, and specifically relates to an inspection tooling for simulating the weight pressing of battery cells. Background Technique

[0002] A battery load detection device is a device specifically used for testing the performance of batteries. It can simulate the load conditions faced by batteries in actual applications, thereby evaluating key indicators such as the discharge capacity, capacity, internal resistance, temperature characteristics, and cycle life of the batteries.

[0003] Currently, in the existing technology, battery load devices mainly include the following categories: battery discharge testers, which are specifically used for testing the discharge performance of batteries; battery internal resistance testers, which are used to measure the internal resistance values of batteries in different states; and cell weight-bearing toolings, which are used to simulate and verify whether the deformation generated when installing battery cells in a battery box will cause air leakage in the box.

[0004] In the existing mass production of battery boxes, it is impossible to install battery cells for load testing for each one. The weight of each group of battery cells is about 150 - 200 KG, and only tools can be used for detection. It is inconvenient to conduct weight pressing tests on mass-produced battery boxes, and it can only conduct weight-bearing detection on single-model battery boxes. It is inconvenient to adjust during use and has poor applicability. Therefore, an inspection tooling for simulating the weight pressing of battery cells is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the existing technology and solve at least one of the technical problems proposed in the background technique, the utility model proposes an inspection tooling for simulating the weight pressing of battery cells.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: An inspection tooling for simulating the weight pressing of battery cells according to the utility model includes a detection table, and a weight-bearing frame is fixedly connected to one side of the detection table; a lifting frame is slidably connected to the inner side of the weight-bearing frame; adjusting frames are fixedly connected to both ends of the lifting frame close to the weight-bearing frame; a cross beam is detachably connected to the side of the adjusting frame away from the weight-bearing frame; a plurality of limiting blocks are fixedly connected to the top end of the cross beam; a fastening bolt is rotatably connected to the bottom end of the cross beam; the bottom end of the fastening bolt is threadedly connected to the adjusting frame; weight boxes are arranged at both ends of the bottom end of the cross beam; chains are fixedly connected to both ends of the top end of the weight box; the top end of the chain is in contact with the cross beam; a battery box is fixedly connected to the top end of the weight-bearing frame; and a load-bearing bracket is fixedly connected to the inner side of the battery box.

[0007] A lifting structure assembly; it is arranged at the position inside the weight-bearing frame; the lifting structure assembly is used to cooperate with the lifting frame.

[0008] Adjusting assembly; it is arranged at the bottom end of the counterweight box; the adjusting assembly is used in cooperation with the battery box.

[0009] Preferably, the lifting structure assembly includes a cylinder, a telescopic rod and a telescopic frame; a cylinder is fixedly connected to the inner bottom end of the load-bearing frame; a telescopic rod is arranged inside the cylinder; the top end of the telescopic rod is fixedly connected to the telescopic frame; both ends of the telescopic frame are fixedly connected to the lifting frame.

[0010] Preferably, rotation bearings are fixedly connected to the top and bottom ends of both inner sides of the lifting frame; one end of the rotation bearing penetrates through the lifting frame and extends to the inner side of the load-bearing frame and is rotatably connected to the load-bearing frame.

[0011] Preferably, a closing cover is detachably connected to the top end of the counterweight box; a pull ring is fixedly connected to the top end of the closing cover.

[0012] Preferably, the adjusting assembly includes a comb-shaped contact plate, an adjusting screw, a first moving seat, a first fixed seat and a first transmission arm; comb-shaped contact plates are slidably connected to both ends of the bottom end of the counterweight box; an adjusting screw is rotatably connected to the center position of the bottom end of the counterweight box; first moving seats are threadedly connected to both sides of the adjusting screw; first fixed seats are fixedly connected to both sides of the center position of one end of the first fixed seat away from the adjusting screw located at one end of the counterweight box; a first transmission arm is rotatably connected to the inner side of the first moving seat; the end of the first transmission arm away from the first moving seat is rotatably connected to the corresponding first fixed seat.

[0013] Preferably, second moving seats are threadedly connected to both sides of the center position of the adjusting screw; second fixed seats are fixedly connected to both sides of the top end of the comb-shaped contact plate at the other end of the bottom end of the counterweight box; a second transmission arm is rotatably connected to the inner side of the second moving seat; the end of the second transmission arm away from the adjusting screw is rotatably connected to the corresponding second fixed seat.

[0014] Preferably, a connecting column is rotatably connected to the bottom end of the counterweight box at a position corresponding to the adjusting screw; one side of the connecting column close to the adjusting screw is fixedly connected to the adjusting screw, and the other side of the connecting column is fixedly connected to a rotating handle.

[0015] The beneficial effects of the present utility model:

[0016] The present utility model provides an inspection tooling for simulating the pressing weight of an electric core. Through the structural cooperation design of a load-bearing frame, a lifting frame, a counterweight box, and a lifting mechanism assembly, by starting the cylinder in the lifting assembly, the inner telescopic rod of the cylinder drives the limit block and the connected counterweight box thereon to adjust the height and detect the product. It is convenient to use compressed air as the power source, with convenient operation, reducing the labor intensity of employees, facilitating the adjustment of the use distance of the counterweight box according to products of different batch models, facilitating the realization of multi-product universality, and improving the applicability of the device.

[0017] The present utility model provides an inspection tooling for simulating the pressing weight of an electric core. Through the structural cooperation design of an adjustment assembly, it is convenient to adjust the contact area at the bottom of the counterweight box according to the contact areas of products of different sizes, increasing the range of contact between the product and the counterweight box during load-bearing detection, improving the load-bearing effect of the device during detection, and further improving the use effect of the device. Description of the Drawings

[0018] The drawings described herein are used to provide a further understanding of the present utility model, form a part of this application, and the schematic embodiments of the present utility model and their descriptions are used to explain the present utility model, and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 is the three-dimensional view of the present utility model;

[0020] Figure 2 is the three-dimensional view of the load-bearing frame in the present utility model;

[0021] Figure 3 is the three-dimensional view of the sectional view of the counterweight box in the present utility model;

[0022] Figure 4 is the three-dimensional view of the comb-shaped contact plate in the present utility model.

[0023] Legend Explanation:

[0024] 1. Detection table; 2. Load-bearing frame; 3. Lifting frame; 4. Adjustment frame; 5. Cross beam; 6. Limit block; 7. Counterweight box; 8. Chain; 9. Battery box; 10. Load-bearing support; 11. Tightening bolt; 12. Closing cover; 13. Pull ring; 14. Cylinder; 15. Telescopic rod; 16. Telescopic frame; 17. Rotating bearing; 18. Comb-shaped contact plate; 19. Adjusting screw; 20. First moving seat; 21. First fixed seat; 22. First transmission arm; 23. Second moving seat; 24. Second fixed seat; 25. Second transmission arm; 26. Connecting column; 27. Rotating handle. Detailed Embodiment

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The following gives specific embodiments.

[0027] Please refer to Figures 1-4 , the present invention provides an inspection tooling for simulating the weight pressing of an electric core, including a detection table 1, and a load-bearing frame 2 is fixedly connected to one side of the detection table 1; a lifting frame 3 is slidably connected to the inner side of the load-bearing frame 2; both ends of the lifting frame 3 close to one side of the load-bearing frame 2 are fixedly connected with adjusting frames 4; a cross beam 5 is detachably connected to the side of the adjusting frame 4 away from the load-bearing frame 2; a plurality of limit blocks 6 are fixedly connected to the top end of the cross beam 5; a fastening bolt 11 is rotatably connected to the bottom end of the cross beam 5; the bottom end of the fastening bolt 11 is threadedly connected to the adjusting frame 4; counterweight boxes 7 are arranged at both ends of the bottom end of the cross beam 5; both ends of the top end of the counterweight box 7 are fixedly connected with chains 8; the top end of the chain 8 is in contact with the cross beam 5; a battery box 9 is fixedly connected to the top end of the load-bearing frame 2; a load-bearing bracket 10 is fixedly connected to the inner side of the battery box 9;

[0028] A lifting structure assembly; it is arranged at the position inside the load-bearing frame 2; the lifting structure assembly is used to cooperate with the lifting frame 3;

[0029] An adjusting assembly; it is arranged at the position of the bottom end of the counterweight box 7; the adjusting assembly is used to cooperate with the battery box 9. During operation, by starting the lifting structure assembly, it is convenient to drive the counterweight box 7 to lift on the battery box 9 through the cross beam 5. After placing the product on the battery box 9, according to the model size of the product, the position of the counterweight box 7 relative to the product can be adjusted through the chain 8 and the fastening bolt 11. The adjusting assembly facilitates adjusting the contact area between the bottom end of the counterweight box 7 and the product, increasing the range of contact between the product and the counterweight box 7 during the load detection, improving the load-bearing effect of the device during detection, facilitating the adjustment of the use distance of the counterweight box 7 according to different batches and models of products, facilitating the realization of multi-product universality, and improving the applicability of the device.

[0030] Furthermore, as Figure 1 and Figure 2As shown in the figure, the lifting structure assembly includes a cylinder 14, a telescopic rod 15, and a telescopic frame 16; the bottom end inside the load-bearing frame 2 is fixedly connected to the cylinder 14; the telescopic rod 15 is arranged inside the cylinder 14; the top end of the telescopic rod 15 is fixedly connected to the telescopic frame 16; both ends of the telescopic frame 16 are fixedly connected to the lifting frame 3. During operation, by starting the cylinder 14, the cylinder 14 drives the telescopic rod 15 inside it to drive the lifting frame 3 to move up and down in the load-bearing frame 2 through the telescopic frame 16, further improving the use effect of the device. It is convenient to use compressed air as the power source, with convenient operation and reduced labor intensity of employees.

[0031] Further, as Figure 1 and Figure 2 shown in the figure, at both the top and bottom ends of the inner sides of both ends of the lifting frame 3, rotating bearings 17 are fixedly connected; one end of the rotating bearing 17 penetrates through the lifting frame 3 and extends to the inside of the load-bearing frame 2 and is rotatably connected to the load-bearing frame 2. During operation, through the structural connection between the rotating bearing 17 and the lifting frame 3, it is convenient for the lifting frame 3 to run smoothly inside the load-bearing frame 2, improving the efficiency and stability of the device during lifting.

[0032] Further, as Figure 3 shown in the figure, the top end of the counterweight box 7 is detachably connected to a closing cover 12; a pull ring 13 is fixedly connected to the top end of the closing cover 12. During operation, by pulling the pull ring 13, the connection between the closing cover 12 and the counterweight box 7 is released, and then it is convenient to put counterweights into the counterweight box 7.

[0033] Further, as Figure 3 and Figure 4 shown in the figure, the adjusting assembly includes a comb-shaped contact plate 18, an adjusting screw 19, a first moving seat 20, a first fixed seat 21, and a first transmission arm 22; both ends of the bottom end of the counterweight box 7 are slidably connected to the comb-shaped contact plate 18; the center position of the bottom end of the counterweight box 7 is rotatably connected to the adjusting screw 19; both sides of the adjusting screw 19 are threadedly connected to the first moving seat 20; both sides of the center position of one end of the first fixed seat 21 away from the adjusting screw 19 at one end of the counterweight box 7 are fixedly connected to the first fixed seat 21; the inner side of the first moving seat 20 is rotatably connected to the first transmission arm 22; the end of the first transmission arm 22 away from the first moving seat 20 is rotatably connected to the corresponding first fixed seat 21. During operation, by rotating the adjusting screw 19, it is convenient to drive the two first moving seats 20 to move relatively, and then through the first fixed seat 21, one end of the comb-shaped contact plate 18 is slid out of the counterweight box 7, increasing the contact area at the bottom of the counterweight box 7.

[0034] Further, as Figure 4As shown, on both sides of the center position of the adjusting screw rod 19 are threadedly connected with second moving seats 23; on both sides of the top of the comb-shaped contact plate 18 at the other end of the bottom end of the counterweight box 7 are fixedly connected with second fixing seats 24; the inner side of the second moving seat 23 is rotatably connected with a second transmission arm 25; the end of the second transmission arm 25 away from the adjusting screw rod 19 is rotatably connected with the corresponding second fixing seat 24. During operation, by rotating the adjusting screw rod 19, the adjusting screw rod 19 drives the two second moving seats 23 to move relatively through rotation, and then drives the comb-shaped contact plate 18 at the other end to slide out of the counterweight box 7 through the second transmission arm 25, improving the contact connection at the bottom of the counterweight box 7. Through the structural design of the first moving seat 20 and the second moving seat 23, it is convenient to simultaneously move and adjust the comb-shaped contact plate 18 in the counterweight box 7, improving the linkage of the device.

[0035] Further, as Figure 4 shown, at the bottom end of the counterweight box 7 and at a position corresponding to the adjusting screw rod 19 is rotatably connected with a connecting column 26; on the side of the connecting column 26 close to the adjusting screw rod 19 is fixedly connected with the adjusting screw rod 19, and on the other side of the connecting column 26 is fixedly connected with a rotating handle 27. During operation, by rotating the rotating handle 27, the rotating handle 27 drives the adjusting screw rod 19 to rotate through the connecting column 26, making it convenient to adjust the comb-shaped contact plate 18.

[0036] Working principle: By starting the lifting structure component, it is convenient for it to drive the counterweight box 7 to lift on the battery box 9 through the cross beam 5. After placing the product on the battery box 9, according to the model size of the product, the position of the counterweight box 7 and the product can be adjusted through the chain 8 and the fastening bolt 11. The adjustment component is convenient for adjusting the contact area between the bottom end of the counterweight box 7 and the product, improving the range of contact between the product and the counterweight box 7 during load detection, enhancing the load-bearing effect of the device during detection, facilitating the adjustment of the use distance of the counterweight box 7 for products of different batches and models, facilitating the realization of multi-product universality, and improving the applicability of the device. By starting the cylinder 14, the cylinder 14 drives the telescopic rod 15 inside it to drive the lifting frame 3 to lift up and down in the load-bearing frame 2 through the telescopic frame 16, further improving the use effect of the device. It is convenient to use compressed air as the power source, with convenient operation and reduced labor intensity of employees. Through the structural connection of the rotating bearing 17 and the lifting frame 3, it is convenient for the lifting frame 3 to run smoothly in the load-bearing frame 2, improving the efficiency and stability of the device during lifting. By pulling the pull ring 13, the closing cover 12 is disconnected from the counterweight box 7, thereby facilitating the placement of counterweights into the counterweight box 7. By rotating the adjusting screw 19, it is convenient to drive the two first moving seats 20 to move relative to each other, and then through the first fixing seat 21, one end of the comb-shaped contact plate 18 is slid out of the counterweight box 7, increasing the contact area at the bottom of the counterweight box 7. By rotating the adjusting screw 19, the adjusting screw 19 drives the two second moving seats 23 to move relative to each other through rotation, and then drives the comb-shaped contact plate 18 at the other end to slide out of the counterweight box 7 through the second transmission arm 25, improving the contact connection at the bottom of the counterweight box 7. Through the structural design of the first moving seat 20 and the second moving seat 23, it is convenient for the comb-shaped contact plates 18 inside the counterweight box 7 to be adjusted simultaneously, improving the linkage of the device. By rotating the rotating handle 27, the rotating handle 27 drives the adjusting screw 19 to rotate through the connecting column 26, making it convenient to adjust the comb-shaped contact plate 18.

[0037] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A test fixture for simulating the weight of a battery cell, comprising a test bench (1), characterized in that: One side of the testing platform (1) is fixedly connected to a load-bearing frame (2); the inner side of the load-bearing frame (2) is slidably connected to a lifting frame (3); both ends of the lifting frame (3) close to the load-bearing frame (2) are fixedly connected to an adjusting frame (4); the side of the adjusting frame (4) away from the load-bearing frame (2) is detachably connected to a crossbeam (5); the top of the crossbeam (5) is fixedly connected to a plurality of limit blocks (6); the bottom end of the crossbeam (5) is rotatably connected to a fastening bolt (11); the bottom end of the fastening bolt (11) is threadedly connected to the adjusting frame (4); both ends of the bottom end of the crossbeam (5) are provided with a counterweight box (7); both ends of the top end of the counterweight box (7) are fixedly connected to a chain (8); the top end of the chain (8) is in contact with the crossbeam (5); the top of the load-bearing frame (2) is fixedly connected to a battery box (9); the inner side of the battery box (9) is fixedly connected to a load-bearing bracket (10); Lifting structure components; It is arranged at a position inside the load-bearing frame (2); the lifting structure component is used in conjunction with the lifting frame (3); Adjustment components; It is arranged at the bottom end of the counterweight box (7); the adjustment component is used in conjunction with the battery box (9).

2. The inspection tool for simulating the weight of a battery cell according to claim 1, characterized in that: The lifting structure assembly comprises a cylinder (14), a telescopic rod (15) and a telescopic frame (16); the bottom end of the inner side of the load-bearing frame (2) is fixedly connected to the cylinder (14); the inner side of the cylinder (14) is provided with a telescopic rod (15); the top end of the telescopic rod (15) is fixedly connected to the telescopic frame (16); and both ends of the telescopic frame (16) are fixedly connected to the lifting frame (3).

3. The inspection tool for simulating the weight of a battery cell according to claim 1, characterized in that: The top and bottom ends of the inner sides of the lifting frame (3) are fixedly connected with a rotating bearing (17); one end of the rotating bearing (17) passes through the lifting frame (3) and extends to the inner side of the load frame (2) and is rotatably connected to the load frame (2).

4. The inspection tool for simulating the weight of a battery cell according to claim 1, characterized in that: The top end of the counterweight box (7) is detachably connected to a closing cover (12); the top end of the closing cover (12) is fixedly connected to a pull ring (13).

5. The inspection tool for simulating the weight of a battery cell according to claim 1, characterized in that: The adjustment assembly comprises a comb-shaped contact plate (18), an adjustment screw (19), a first movable seat (20), a first fixed seat (21) and a first transmission arm (22); both ends of the bottom end of the counterweight box (7) are slidably connected with the comb-shaped contact plate (18); the center position of the bottom end of the counterweight box (7) is rotatably connected with the adjustment screw (19); both sides of the adjustment screw (19) are threadedly connected with the first movable seat (20); the first fixed seat (21) located at one end of the counterweight box (7) is fixedly connected with the first fixed seat (21) on both sides away from the center position of one end of the adjustment screw (19); the inner side of the first movable seat (20) is rotatably connected with the first transmission arm (22); the end of the first transmission arm (22) away from the first movable seat (20) is rotatably connected to the corresponding first fixed seat (21).

6. The inspection tool for simulating the weight of a battery cell as claimed in claim 5, characterized in that: The second movable seat (23) is threadedly connected to both sides of the center position of the adjusting screw (19); the second fixed seat (24) is fixedly connected to both sides of the top of the comb-shaped contact plate (18) located at the other end of the bottom of the counterweight box (7); the second movable seat (23) is rotatably connected to the inner side of the second transmission arm (25); the end of the second transmission arm (25) away from the adjusting screw (19) is rotatably connected to the corresponding second fixed seat (24).

7. The inspection tool for simulating the weight of a battery cell as claimed in claim 5, characterized in that: A connecting column (26) is rotatably connected to the bottom end of the counterweight box (7) and at a position corresponding to the adjusting screw (19); one side of the connecting column (26) close to the adjusting screw (19) is fixedly connected to the adjusting screw (19), and the other side of the connecting column (26) is fixedly connected to a rotating handle (27).

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