Tensile test device for lithium battery diaphragm

Abstract

The utility model relates to the field of lithium battery diaphragms, in particular to a lithium battery diaphragm tensile test device. The stretching test device for the lithium battery diaphragm comprises a mounting plate, a threaded rod, a guide rod, a fixed plate and a hydraulic rod, a threaded rod is mounted on one side of the upper portion of the mounting plate, a guide rod is mounted on the other side of the upper portion of the mounting plate, the upper portion of the threaded rod is connected with an output shaft of a motor through a coupler, a fixing plate is movably mounted on the threaded rod and the guide rod jointly, and a hydraulic rod is mounted on the lower portion of the fixing plate. The driving motor drives the bidirectional screw rod to rotate, so that the blade is driven to move inwards to cut off the diaphragm, then the diaphragm is clamped through the third clamping plate, and the driver is started to move the moving block to the second clamping plate to clamp the diaphragm, so that the purpose of conveniently cutting the diaphragm is achieved, and the effect of conveniently detecting is achieved.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery diaphragms, in particular to a lithium battery diaphragm tensile testing device. Background Art

[0002] Lithium-ion battery diaphragm is one of the key inner components in the structure of lithium battery. For lithium battery series, since the electrolyte is an organic solvent system, a diaphragm material resistant to organic solvents is required. The performance of the diaphragm determines the interface structure and internal resistance of the battery, which directly affects the battery's capacity, cycle and safety performance. Therefore, in the diaphragm production process, the diaphragm needs to be tensile tested. The current lithium battery diaphragm tensile testing device requires manual cutting of the produced diaphragm at the beginning, and then the diaphragm is placed on the stretching device for testing. However, the manual cutting method is cumbersome and inconvenient, and manual cutting is prone to uneven cutting sizes, affecting the test effect.

[0003] Based on this, we need to design a lithium battery separator tensile testing device. Utility Model Content

[0004] In order to overcome the shortcomings that manual cutting is complicated and inconvenient, and that manual cutting easily results in uneven cutting sizes, thus affecting the detection effect, the utility model provides a lithium battery diaphragm stretching test device.

[0005] The technical scheme of the utility model is as follows: a lithium battery diaphragm tensile testing device, comprising a mounting plate, a threaded rod, a guide rod, a fixed plate, a hydraulic rod, a first clamping plate, a second clamping plate, a placement plate, a support plate, a moving rod, a blade, a support rod, a motor and a bidirectional screw. A threaded rod is installed on one side of the upper portion of the mounting plate, a guide rod is installed on the other side of the upper portion of the mounting plate, the upper portion of the threaded rod is connected to the output shaft of the motor through a coupling, a fixing plate is movably installed on the threaded rod and the guide rod, a hydraulic rod is installed on the lower portion of the fixing plate, the first clamping plate is symmetrically and movably installed on the lower portion of the hydraulic rod, a placement plate is installed in front of the mounting plate, a second clamping plate is symmetrically installed on the upper rear end of the placement plate, a support plate is symmetrically installed on the upper front end of the placement plate, a moving rod is installed on one side of the support plate, a blade is movably installed on the moving rod, a support rod is installed on one side of the placement plate, a motor is installed on one side of the upper portion of the support rod, a bidirectional screw is connected to the output shaft of the motor, and a blade is symmetrically and movably installed on the bidirectional screw.

[0006] Preferably, it also includes a guide rod, a guide screw, a moving block, a driver and a third clamping plate. The guide screw is movably installed on one side of the interior of the placement plate, and the guide rod is installed on the other side of the interior of the placement plate. The moving block is movably installed on the guide rod and the guide screw. One end of the guide screw is connected to the output shaft of the driver through a coupling, and the third clamping plate is symmetrically and movably installed on the upper part of the moving block.

[0007] Preferably, an anti-skid pad is further included, and the anti-skid pad is installed on one side of the second clamping plate.

[0008] Preferably, it also includes an index needle, which is symmetrically installed on both sides of the lower part of the hydraulic rod.

[0009] Preferably, a sensor is further included, and the sensor is installed on one side of the upper part of the mounting plate.

[0010] Preferably, a scale plate is further included, and the scale plate is symmetrically installed on both sides of the sensor.

[0011] The beneficial effects of the utility model are as follows: the bidirectional screw is driven to rotate by a driving motor, which drives the blade to move inward to cut the diaphragm, and then the diaphragm is clamped by the third clamping plate, and then the driver is started to move the moving block to the second clamping plate to clamp the diaphragm, thereby achieving the purpose of facilitating the cutting of the diaphragm and thus achieving the effect of facilitating detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the hydraulic rod and the fixing plate of the utility model.

[0014] Figure 3 It is a three-dimensional structural schematic diagram of the placement plate and the clamping plate of the utility model.

[0015] Figure 4 It is a three-dimensional structural schematic diagram of the support rod and the bidirectional screw rod of the utility model.

[0016] Figure 5 It is a three-dimensional structural schematic diagram of the moving block and the guide rod of the utility model.

[0017] Figure 6 It is a three-dimensional structural schematic diagram of the pointer of the utility model.

[0018] The marks in the accompanying drawings are: 1-mounting plate, 2-sensor, 3-threaded rod, 4-guide rod, 5-fixed plate, 6-hydraulic rod, 7-first clamping plate, 701-second clamping plate, 702-anti-slip pad, 8-placing plate, 9-support plate, 10-moving rod, 11-blade, 12-support rod, 13-motor, 14-bidirectional screw, 15-guide rod, 16-guide screw, 17-moving block, 18-driver, 19-third clamping plate, 20-indicator, 21-dial. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Example 1

[0021] A lithium battery diaphragm tensile testing device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, it includes a mounting plate 1, a sensor 2, a threaded rod 3, a guide rod 4, a fixed plate 5, a hydraulic rod 6, a first clamping plate 7, a second clamping plate 701, a placement plate 8, a support plate 9, a moving rod 10, a blade 11, a support rod 12, a motor 13 and a bidirectional screw 14. The threaded rod 3 is installed on the upper left side of the mounting plate 1. The rotation of the threaded rod 3 will drive the fixed plate 5 to move up and down, which is convenient for adjusting the height. The sensor 2 is installed on the upper rear side of the mounting plate 1. The sensor 2 is convenient for warning the length of the diaphragm pulling. The guide rod 4 is installed on the upper right side of the mounting plate 1. The upper part of the threaded rod 3 is connected to the output shaft of the motor 13 through a coupling. The threaded rod 3 and the guide rod 4 are jointly and movably installed with a fixed plate 5. The fixed plate 5 will facilitate the installation of the hydraulic rod 6. The hydraulic rod is installed at the bottom of the fixed plate 5. 6. A first clamping plate 7 is symmetrically and movably installed at the lower part of the hydraulic rod 6. The first clamping plate 7 will clamp the diaphragm to facilitate the pulling test. A placing plate 8 is installed in front of the mounting plate 1. A second clamping plate 701 is symmetrically installed at the upper rear end of the placing plate 8. A supporting plate 9 is symmetrically installed at the upper front end of the placing plate 8. A moving rod 10 is installed on the left side of the supporting plate 9. A blade 11 is movably installed on the moving rod 10. A supporting rod 12 is installed on the left side of the placing plate 8. A motor 13 is installed on the upper left side of the support rod 12. The motor 13 drives the bidirectional screw 14 to rotate, thereby driving the blade 11 to move inward, and the diaphragm is cut off by the blade 11. The output shaft of the motor 13 is connected with a bidirectional screw 14, and the blade 11 is symmetrically and movably installed on the bidirectional screw 14.

[0022] like Figure 1As shown, it also includes an anti-slip pad 702, a guide rod 15, a guide screw 16, a moving block 17, a driver 18, a third clamping plate 19, an index pin 20 and a dial 21. The guide screw 16 is movably mounted on the right side of the placement plate 8, and the guide rod 15 is mounted on the left side of the placement plate 8. The moving block 17 is movably mounted on the guide rod 15 and the guide screw 16. The diaphragm is placed on the moving block 17. The front end of the guide screw 16 is connected to the driver 1 through a coupling. The output shaft of 8, the upper part of the moving block 17 is symmetrically and movably installed with a third clamping plate 19, the diaphragm is clamped by the third clamping plate 19, the left side of the second clamping plate 701 is installed with an anti-skid pad 702, the anti-skid pad 702 prevents the clamping plate from sliding when clamping the diaphragm, the lower part of the hydraulic rod 6 is symmetrically installed with a pointer 20 on both sides, the sensor 2 is symmetrically installed with a dial 21 on both sides, when the hydraulic rod 6 moves, it will drive the pointer 20 to move up and down for easy viewing of the pulling length.

[0023] When the staff uses this design, they can first place the diaphragm on the moving block 17, and then drive the motor 13. The motor 13 drives the bidirectional screw 14 to rotate, which drives the blade 11 to move inward, and the diaphragm is cut by the blade 11. The diaphragm is then clamped by the third clamping plate 19, and then the driver 18 is started to move the moving block 17 to the second clamping plate 701 to clamp the diaphragm, so as to facilitate the cutting of the diaphragm and achieve the effect of facilitating detection. Then, the upper part of the diaphragm is clamped by driving the first clamping plate 7, and by moving the hydraulic rod 6 upward, under the guidance of the sensor 2 and the pointer 20, it is convenient to observe the length of the pulled diaphragm, thereby facilitating the detection of the diaphragm. When the clamping plate clamps the diaphragm, the anti-slip pad 702 can be used to prevent the clamping plate from sliding when clamping the diaphragm.

[0024] The above-mentioned embodiments only express the preferred implementation of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications, improvements and substitutions can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A lithium battery diaphragm tensile testing device, comprising a mounting plate (1), characterized in that: The invention also comprises a threaded rod (3), a guide rod (4), a fixed plate (5), a hydraulic rod (6), a first clamping plate (7), a second clamping plate (701), a placement plate (8), a support plate (9), a movable rod (10), a blade (11), a support rod (12), a motor (13) and a bidirectional screw rod (14). The threaded rod (3) is installed on one side of the upper part of the mounting plate (1), the guide rod (4) is installed on the other side of the upper part of the mounting plate (1), the upper part of the threaded rod (3) is connected to the output shaft of the motor (13) through a coupling, the threaded rod (3) and the guide rod (4) are movably installed on the fixed plate (5), the lower part of the fixed plate (5) is installed with a hydraulic rod (6), and the hydraulic rod (6) A first clamping plate (7) is symmetrically and movably mounted on the lower part of the mounting plate (1), a placing plate (8) is mounted in front of the mounting plate (1), a second clamping plate (701) is symmetrically mounted on the upper rear end of the placing plate (8), a supporting plate (9) is symmetrically mounted on the upper front end of the placing plate (8), a moving rod (10) is mounted on one side of the supporting plate (9), a blade (11) is movably mounted on the moving rod (10), a supporting rod (12) is mounted on one side of the placing plate (8), a motor (13) is mounted on one side of the upper part of the support rod (12), a bidirectional screw (14) is connected to the output shaft of the motor (13), and a blade (11) is symmetrically and movably mounted on the bidirectional screw (14).

2. A lithium battery diaphragm tensile testing device according to claim 1, characterized in that: The invention also comprises a guide rod (15), a guide screw (16), a moving block (17), a driver (18) and a third clamping plate (19); the guide screw (16) is movably mounted on one side of the interior of the placement plate (8); the guide rod (15) is mounted on the other side of the interior of the placement plate (8); the moving block (17) is movably mounted on the guide rod (15) and the guide screw (16); one end of the guide screw (16) is connected to the output shaft of the driver (18) via a coupling; the third clamping plate (19) is symmetrically and movably mounted on the upper part of the moving block (17).

3. A lithium battery diaphragm tensile testing device according to claim 2, characterized in that: It also includes an anti-skid pad (702), and the anti-skid pad (702) is installed on one side of the second clamping plate (701).

4. A lithium battery separator tensile testing device according to claim 3, characterized in that: It also includes an index needle (20), which is symmetrically mounted on both sides of the lower part of the hydraulic rod (6).

5. A lithium battery separator tensile testing device according to claim 4, characterized in that: It also includes a sensor (2), which is installed on one side of the upper part of the installation plate (1).

6. A lithium battery separator tensile testing device according to claim 5, characterized in that: It also includes a scale plate (21), and the scale plates (21) are symmetrically mounted on both sides of the sensor (2).

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