Torque testing machine for lithium battery pruning shears

Abstract

The invention discloses a lithium battery pruning shear torque testing machine, and particularly relates to the technical field of testing devices.The lithium battery pruning shear torque testing machine comprises a testing table, a first fixing assembly is arranged at the upper end of the testing table, a second fixing assembly is arranged at the lower end of a protective cover, a testing auxiliary assembly is arranged at the upper end of the testing table, and a reset assembly is arranged at the upper end of the testing table; a rotating assembly is arranged at the lower end of the protective cover, and a pushing assembly is arranged at the lower end of the protective cover. Through cooperation of a push plate, a first telescopic rod and a push rod, it is ensured that a trigger is stably and consistently pushed, the force and stroke for triggering the pruning shears each time are the same, through cooperation of a sliding rod and a round block, when the pruning shears reset after one-time shearing is finished, the round block downwards presses a simulation material, the shearing position can be automatically adjusted, and the shearing efficiency is improved. Each time of shearing is carried out on a new material, the reset assembly is automatically triggered after the test is finished, the sliding rod and the round block are reset to the initial height, and preparation is made for the next test.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a lithium-ion battery pruning shear torque tester. Background Technology

[0002] The core purpose of torque testing is to quantitatively evaluate the maximum shearing capacity and mechanical reliability of pruning shears. Specifically, it mainly tests the following key indicators: maximum cutting torque, stall torque, working durability torque, and system efficiency. In the working durability torque test, the stability of torque output and temperature rise of the lithium-ion battery-powered pruning shears under typical loads (e.g., cutting branches with a nominal diameter of 70%–80%) are simulated during long-term continuous pruning operations. Simultaneously, the shears are paused after several cuts to detect wear.

[0003] However, in the existing lithium-ion pruning shears working durability torque test, it is impossible to guarantee that the force and stroke of triggering the trigger are consistent each time, resulting in low repeatability of test results. It is also impossible to ensure that the simulated material falls the same distance each time. Furthermore, the reset and locking mechanisms are not precise enough, which may cause the simulated material to move different distances each time. Summary of the Invention

[0004] The main objective of this invention is to provide a lithium-ion battery pruning shear torque testing machine, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A lithium-ion pruning shear torque testing machine includes a testing platform and a protective cover that protects the internal structure during testing. A drive shaft is located at the center of the upper part of the testing platform, and guide rails are fixedly installed on both sides of the drive shaft on the upper part of the testing platform. A fixing component one for supporting and clamping the pruning shears is located on the upper part of the testing platform. A fixing component two for pressing and fixing the pruning shears is located above the fixing component one and below the protective cover. A test auxiliary component for assisting in testing the performance of the pruning shears is located on the upper part of the testing platform in front of the fixing component one. A reset component is located inside the test auxiliary component on the upper part of the testing platform. A rotating component is located in front of the fixing component two and below the protective cover. A pushing component is located to the right of the rotating component and below the protective cover. The pushing component includes a sliding rod for pushing the material to be cut down, and the left end of the sliding rod has several slots.

[0007] Preferably, the fixing component includes a fixing seat that is slidably mounted to the two guide rails, and the lower end of the fixing seat is fixedly connected to the front side of the upper end of the drive shaft. The upper end of the fixing seat is symmetrically provided with arc-shaped clamps for clamping and fixing the handle of the pruning shears.

[0008] Preferably, the second fixing component includes a hydraulic cylinder fixedly installed at the lower end of the protective cover. A horizontal plate is fixedly installed at the output end of the hydraulic cylinder. Pressure rollers are symmetrically fixedly installed at the lower end of the horizontal plate. A limiting plate is fixedly installed on the front right side of the horizontal plate. A telescopic rod is slidably installed on the inner surface of the limiting plate. A push rod that is in close contact with one side of the pruning shears is fixedly installed at the lower end of the telescopic rod.

[0009] Preferably, the test auxiliary component includes a fixed cylinder fixedly installed on the upper part of the test platform. A circular plate is fixedly installed on the upper side of the outer surface of the fixed cylinder. A plurality of circular holes are arranged in a ring array on the upper end of the circular plate. Arc-shaped blocks are symmetrically arranged on the inner surface of the plurality of circular holes. Simulated material for pruning shear test is arranged on two circular holes located on the inner surface of the same circular hole that are close to each other on one side.

[0010] Preferably, the test auxiliary component further includes a one-way rotating shaft fixedly installed on the lower side of the outer surface of the fixed cylinder, a gear fixedly installed on the outer surface of the one-way rotating shaft, a U-shaped rod fixedly installed on the front left side of the fixed seat, and a rack fixedly installed on the front right side of the U-shaped rod.

[0011] Preferably, the rotating assembly includes a hydraulic cylinder two fixedly installed at the lower end of the protective cover, a push plate fixedly installed at the output end of the hydraulic cylinder two, a slider fixedly installed at the upper end of the push plate, the outer surface of the slider being slidably installed with the lower end of the protective cover, the rear side of the lower end of the push plate being fixedly connected to the upper end of the telescopic rod one, and a rack three being fixedly installed at the front side of the lower end of the push plate. The rotating assembly includes a rotating roller two rotatably installed at the lower end of the protective cover, a gear three being provided on the rear side of the outer surface of the rotating roller two, the outer surface of the rotating roller two meshing with the rack three, a cam one being fixedly installed on the front side of the outer surface of the rotating roller two, and a rotating rod being rotatably installed on the upper side of the front end of the cam one.

[0012] Preferably, the rotating assembly further includes a sliding groove fixedly installed at the lower end of the protective cover, a convex block slidably installed on the rear side of the sliding groove, a second cam rotatably installed on the upper rear side of the convex block, a stop roller fixedly installed on the rear end of the convex block located on the right side of the second cam, an arc-shaped telescopic rod fixedly installed on the outer surface of the convex block and the right side of the second cam, and the lower rear end of the convex block rotatably connected to the rotating rod.

[0013] Preferably, the pushing component includes a fixed plate fixedly installed at the lower end of the protective cover, and the fixed plate is located on the right side of the rotating component. A fixed rod is fixedly installed at the lower middle part of the fixed plate. The outer surface of the fixed rod is slidably installed with a sliding rod. Rectangular plates are fixedly installed on the upper side of the front end and the upper side of the rear end of the sliding rod. Several springs are fixedly installed on the upper ends of the two rectangular plates together with the lower end of the fixed plate. A round block is fixedly installed on the lower side of the right end of the sliding rod. The lower end of the round block is in close contact with the upper end of the simulation material. Several slots are provided at the front end of the sliding rod.

[0014] Preferably, the reset assembly includes a rotating roller rotatably mounted on the upper end of the test bench. The rotating roller is located inside the fixed cylinder. A circular plate is fixedly mounted on the upper end of the rotating roller. A gear is fixedly mounted on the lower side of the outer surface of the rotating roller. A limit roller is fixedly mounted on one side of the upper end of the circular plate. A limit plate is slidably mounted on the outer surface of the limit roller. A bending roller is fixedly mounted on the middle of the rear end of the limit plate. A bending rod is fixedly mounted on the left side of the rear end of the bending roller. A telescopic rod is fixedly mounted on the front side of the lower end of the bending rod. A limit block is fixedly mounted on the rear end of the telescopic rod. An L-shaped roller is fixedly mounted on the rear side of the lower end of the bending rod. A wedge block is fixedly mounted on the front end of the horizontal part of the L-shaped roller.

[0015] Preferably, the reset assembly includes a guide groove and a guide rod fixedly installed at the lower end of the protective cover. The inner surface of the guide groove is slidably connected to the outer surface of the horizontal part of the bending roller, and the lower end of the guide rod is slidably connected to the upper end of the bending rod. The reset assembly also includes a rack II fixedly installed on the right side of the front end of the fixed seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This invention ensures that the trigger is pushed smoothly and consistently through the cooperation of the push plate, the telescopic rod, and the push rod, and that the force and stroke of the pruning shears are the same each time, thus ensuring the repeatability of the test. Furthermore, through the cooperation of the sliding rod and the circular block, when the pruning shears finish cutting and reset, the circular block presses down on the simulated material, which can automatically adjust the cutting position and ensure that each cut is performed on new material. Moreover, through the cooperation of the slot and the cam, the sliding rod descends the same distance each time, thereby ensuring that the simulated material descends the same distance each time, thus ensuring the stability of the test.

[0018] 2. This invention utilizes the cooperation of strip one and gear one to automatically rotate the fixed cylinder as the pruning shears move forward, transferring new simulated material to the testing station to replace the used material, ensuring the continuity of testing. Simultaneously, two elastic arc-shaped blocks clamp different simulated materials to adapt to the performance testing requirements of different pruning shears. The reset component automatically triggers after testing, resetting the sliding rod and round block to their initial height, preparing for the next test and avoiding manual reset, thus improving testing continuity. The cooperation between the limiting block and slot two ensures that the sliding rod maintains a stable height during testing and accurately locks after reset, guaranteeing the consistency of the simulated material's downward pressure distance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall internal structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the test bench structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the fixing component of the present invention;

[0023] Figure 5 This is a schematic diagram of the second fixing component of the present invention;

[0024] Figure 6 This is a schematic diagram of the test auxiliary component structure of the present invention;

[0025] Figure 7 This is a schematic cross-sectional view of the test auxiliary component of the present invention;

[0026] Figure 8 This is a schematic diagram of the reset component structure of the present invention;

[0027] Figure 9 This is a partial structural diagram of the reset component of the present invention;

[0028] Figure 10 This is a schematic diagram of the pushing component structure of the present invention;

[0029] Figure 11 This is a schematic diagram of the structure of the driving component of the present invention;

[0030] Figure 12 This is a schematic diagram of the rotating component structure of the present invention;

[0031] Figure 13 This is a schematic diagram of the rotating component of the present invention from another perspective;

[0032] Figure 14 This is a schematic diagram of the mating structure of the reset component and the rotating component of the present invention.

[0033] In the diagram: 1. Test bench; 11. Protective cover; 12. Guide rail; 13. Drive shaft; 2. Fixing component one; 21. Fixing base; 22. Arc clamp; 3. Fixing component two; 31. Hydraulic cylinder one; 32. Horizontal plate; 33. Limiting plate one; 34. Telescopic rod one; 35. Push rod; 36. Pressure roller; 4. Test auxiliary components; 41. Fixing cylinder; 42. Circular plate one; 421. Elastic arc block; 422. Circular hole; 43. U-shaped rod; 44. Simulated material; 45. Rack one; 46. Gear one; 47. One-way rotating shaft one; 5. Reset component; 51. Rotating roller one; 511. Circular plate two; 512. Gear two; 513. Limiting roller; 52. Rack two; 53. Limiting plate 2; 54. Bending roller; 541. Guide groove; 55. Bending rod; 551. Guide rod; 56. Telescopic rod 2; 57. Limiting block; 58. L-shaped roller; 59. Wedge block; 6. Pushing assembly; 61. Fixing plate; 62. Spring; 63. Sliding rod; 631. Slot 1; 632. Slot 2; 64. Rectangular plate; 65. Round block; 66. Fixing rod; 7. Rotating assembly; 71. Hydraulic cylinder 2; 72. Push plate; 721. Slider; 73. Cam 1; 74. Rotating rod; 75. Rack 3; 76. Rotating roller 2; 761. Gear 3; 77. Convex block; 771. Stop roller; 772. Arc-shaped telescopic rod; 78. Cam 2; 79. Sliding groove. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] like Figure 1 , Figure 2 and Figure 3As shown, a lithium-ion pruning shear torque testing machine includes a test platform 1 and a protective cover 11 to protect the internal structure during testing. A drive shaft 13 is located at the center of the upper end of the test platform 1. Guide rails 12 are fixedly installed on the upper end of the test platform 1 on both sides of the drive shaft 13. A fixing component 2 for supporting and clamping the pruning shears is located on the upper end of the test platform 1. In use, the fixing component 2 cooperates with the drive shaft 13 and the two guide rails 12 to push the pruning shears to the testing position. A second fixing component 3 for pressing and fixing the pruning shears is located at the lower end of the protective cover 11 above the fixing component 2. In use, the fixing component 2 and the second fixing component 3 work together to fix the pruning shears, preventing... During the test-free process, the pruning shears may shift position. A test auxiliary component 4 is provided on the upper part of the test platform 1 in front of the fixed component 2 to assist in testing the performance of the pruning shears. A reset component 5 is provided on the upper part of the test platform 1 inside the test auxiliary component 4. A rotating component 7 is provided on the lower part of the protective cover 11 on the front side of the fixed component 2. A pushing component 6 is provided on the lower part of the protective cover 11 on the right side of the rotating component 7. The pushing component 6 includes a sliding rod 63 for pushing the material to be cut down. Several slots 631 are provided on the left end of the sliding rod 63. In use, the material to be cut during the pruning shear test is continuously pressed down by the cooperation of the rotating component 7 and the pushing component 6.

[0036] It should be noted that the aforementioned drive shaft 13 is connected to a hydraulic drive device in the prior art. When performing a durability torque performance test on the pruning shears, the hydraulic drive device pushes the drive shaft 13 forward or backward, thereby driving the fixed component 2 and the pruning shears to move.

[0037] In some embodiments of the present invention, such as Figure 4 The fixing component 2 includes a fixing seat 21 that is slidably mounted to two guide rails 12, and the lower end of the fixing seat 21 is fixedly connected to the front side of the upper end of the drive shaft 13. The upper end of the fixing seat 21 is symmetrically provided with arc-shaped clamps 22 for clamping and fixing the handle of the pruning shears.

[0038] The two arc-shaped clamps 22 are connected to a mature drive power source in the prior art. When the pruning shears are tested for working durability torque performance, the drive power source drives the two arc-shaped clamps 22 to move closer to the pruning shears, thereby clamping the handle of the pruning shears and preventing the position of the pruning shears from shifting when testing the performance of the pruning shears.

[0039] When testing the working durability torque performance of the pruning shears, the rear end of the fixed base 21 is flush with the rear ends of the two guide rails 12. The pruning shears to be tested are placed on the upper end of the fixed base 21, and then the pruning shears are clamped and fixed by the drive power source in conjunction with the two arc-shaped clamps 22.

[0040] Next, the hydraulic drive unit, in conjunction with the drive shaft 13, pushes the fixed base 21 and the pruning shears to be tested forward to the test station.

[0041] like Figure 5 The fixing component 2 3 includes a hydraulic cylinder 31 fixedly installed at the lower end of the protective cover 11. A horizontal plate 32 is fixedly installed at the output end of the hydraulic cylinder 31. Pressure rollers 36 are symmetrically fixedly installed at the lower end of the horizontal plate 32. A limit plate 33 is fixedly installed on the front right side of the horizontal plate 32. A telescopic rod 34 is slidably installed on the inner surface of the limit plate 33. A push rod 35 that is in close contact with one side of the pruning shears is fixedly installed at the lower end of the telescopic rod 34.

[0042] Furthermore, when the fixed seat 21, the two arc-shaped clamps 22, and the pruning shears are pushed forward to the test station by the drive shaft 13, the hydraulic cylinder 31 is activated. The output end of the hydraulic cylinder 31 pushes the horizontal plate 32 and the limiting plate 33 downward. During the descent of the horizontal plate 32, the two pressure rollers 36 are simultaneously pushed downward. Similarly, during the descent of the limiting plate 33, the lower end of the telescopic rod 34 and the push rod 35 are driven to descend simultaneously. At this time, the telescopic rod 34 is stretched, and the horizontal plate 32 descends until the two pressure rollers 36 press down and tighten the upper end of the pruning shears. At this time, the push rod 35 descends until the lower side of the outer surface of the push rod 35 is in close contact with the inner arc surface of the trigger of the pruning shears. The horizontal plate 32, the limiting plate 33, and other structures no longer descend, and the hydraulic cylinder 31 stops operating.

[0043] It should be noted that the contact positions between the two pressure rollers 36 and the pruning shears do not affect the operation of the pruning shears.

[0044] Furthermore, the clamping of the two arc-shaped clamps 22 and the pressing down of the two pressure rollers 36 work together to ensure that the pruning shears remain stable and do not shift position during the working durability torque performance test. At the same time, the pruning shears are fixed and the moving blade and the fixed blade of the pruning shears are in a separate state.

[0045] In some embodiments of the present invention, such as Figure 12 and Figure 13 The rotating assembly 7 includes a hydraulic cylinder 2 71 fixedly installed at the lower end of the protective cover 11. A push plate 72 is fixedly installed at the output end of the hydraulic cylinder 2 71. A slider 721 is fixedly installed at the upper end of the push plate 72. The outer surface of the slider 721 is slidably installed with the lower end of the protective cover 11. The rear side of the lower end of the push plate 72 is fixedly connected to the upper end of the telescopic rod 1 34. A rack 3 75 is fixedly installed at the front side of the lower end of the push plate 72.

[0046] After the pruning shears are fixed, hydraulic cylinder 2 71 is activated. Then, the output end of hydraulic cylinder 2 71 pulls push plate 72, telescopic rod 1 34 and rack 3 75 to the left. During the process of push plate 72 being pulled, push plate 72 drives slider 721 to slide along the lower end of protective cover 11.

[0047] Furthermore, when the telescopic rod 34 is pulled by the push plate 72, the telescopic rod 34 drives the push rod 35 to slide along the inner surface of the limiting plate 33 towards the side closer to the horizontal plate 32. During the movement, the push rod 35 pushes the trigger of the pruning shears, thereby triggering the pruning shears to run once, that is, the moving blade of the pruning shears moves to complete one cut.

[0048] It should also be noted that the direction in which the output end of the hydraulic cylinder 2 71 pulls the push plate 72 to the left is the same as the direction in which the telescopic rod 1 34 moves to the left along the inner surface of the limiting plate 1 33.

[0049] like Figure 6 ,and Figure 7 The test auxiliary component 4 includes a fixed cylinder 41 fixedly installed on the upper end of the test platform 1. A circular plate 42 is fixedly installed on the upper side of the outer surface of the fixed cylinder 41. A plurality of circular holes 422 are arranged in a ring array on the upper end of the circular plate 42. Arc-shaped blocks 421 are symmetrically arranged on the inner surface of the plurality of circular holes 422. Two circular holes 422 located on the inner surface of the same circular hole 422 are close to each other and are provided with a simulated material 44 for pruning shear test.

[0050] The aforementioned simulation material 44 is a material commonly used in the prior art for testing the performance of machines such as pruning shears. The radius of the simulation material 44 can be changed according to testing needs to meet different shearing requirements. The simulation material 44 is equipped with multiple sensors, which are electrically connected to the control terminal in the prior art. The multiple sensors are located below the sheared surface of the simulation material 44. The data detected by the sensors can be displayed on the control terminal. When the pruning shears are running, the moving blades of the pruning shears work together to shear the simulation material 44, and the shearing situation of the pruning shears is detected in real time through the cooperation of multiple sensors.

[0051] The two arc-shaped blocks 421 located on the inner surface of the same circular hole 422 can clamp simulated materials 44 with different radii, which meets the requirements of pruning shear performance testing. Similarly, when the moving blade of the pruning shear moves to cut the simulated material 44, the two arc-shaped blocks 421 clamp the simulated material 44, which can prevent the simulated material 44 from moving left and right. At the same time, the two arc-shaped blocks 421 can push the simulated material 44 downward by pressing down.

[0052] Furthermore, as the telescopic rod 34 and push rod 35 are moved along the inner surface of the limiting plate 33 by the push plate 72, the push rod 35 pushes the trigger of the pruning shears, thereby activating the pruning shears. Then, the moving blade of the pruning shears cuts the lower part of the outer surface of the simulated material 44. During the process of the pruning shears cutting the simulated material 44, the sensor located below the shearing surface inside the simulated material 44 can monitor the relevant data of the pruning shears in real time and transmit it to the control terminal. After the lower side of the simulated material 44 is cut off, the sensor located below the shearing surface no longer detects and transmits signals.

[0053] A rectangular hole is provided at the middle of the upper end of the above-mentioned 1. After the simulated material 44 is cut off on the lower side, it is collected directly through the rectangular hole.

[0054] like Figure 13 The rotating assembly 7 includes a rotating roller 76 rotatably mounted on the lower end of the protective cover 11. A gear 761 is provided on the rear side of the outer surface of the rotating roller 76. The outer surface of the rotating roller 76 meshes with a rack 75. A cam 73 is fixedly mounted on the front side of the outer surface of the rotating roller 76. A rotating rod 74 is rotatably mounted on the upper side of the front end of the cam 73.

[0055] It should be noted that the gear 3 761 and the roller 2 76 are connected by a one-way rotating shaft 2. When the rack 3 75 is driven to move to the left by the push plate 72, causing the gear 3 761 to rotate, the roller 2 76 does not rotate due to the cooperation of the one-way rotating shaft 2. When the rack 3 75 is driven to move to the right by the push plate 72, the gear 3 761 drives the roller 2 76 to rotate simultaneously through the one-way rotating shaft 2.

[0056] When the output end of hydraulic cylinder 2 71 drives push plate 72, rack 3 75 and telescopic rod 1 34 to move to the left, rack 3 75 drives gear 3 761 to rotate, while roller 2 76 does not rotate. When the output end of hydraulic cylinder 2 71 pushes push plate 72, rack 3 75 and telescopic rod 1 34 to the right, rack 3 75 drives roller 2 76 to rotate through gear 3 761 and one-way rotating shaft 2. During the rotation of roller 2 76, cam 1 73 is driven to rotate.

[0057] In addition, the stroke of the output end of hydraulic cylinder 2 71, which drives push plate 72, rack 3 75 and telescopic rod 1 34, can make roller 2 76 rotate one revolution.

[0058] like Figure 13 The rotating assembly 7 also includes a sliding groove 79 fixedly installed at the lower end of the protective cover 11. A convex block 77 is slidably installed on the rear side of the sliding groove 79. A second cam 78 is rotatably installed on the upper rear side of the convex block 77. A retaining roller 771 is fixedly installed on the rear end of the convex block 77 located on the right side of the second cam 78. An arc-shaped telescopic rod 772 is fixedly installed on the outer surface of the convex block 77 and the right side of the second cam 78. The lower rear end of the convex block 77 is rotatably connected to the rotating rod 74.

[0059] Furthermore, during the process of the rotating roller 76 driving the cam 73 to rotate around the axis of the rotating roller 76, the cam 73 drives the left end of the rotating rod 74 to rotate. Similarly, through the cooperation of the rotating rod 74, during the process of the cam 73 rotating around the axis of the rotating roller 76, the convex block 77 is driven to slide upward along the sliding groove 79 for a certain distance and then descend by the same distance.

[0060] As the convex block 77 moves upward in cooperation with the rotating rod 74 and the first cam 73, the convex block 77 drives the second cam 78, the stop roller 771, and the arc-shaped telescopic rod 772 to move upward simultaneously. As the second cam 78 moves upward, it slides upward along the left end of the sliding rod 63 while stretching the arc-shaped telescopic rod 772.

[0061] Furthermore, as the convex block 77 descends along the sliding groove 79, the convex block 77 drives the arc-shaped telescopic rod 772, the stop roller 771, and the second cam 78 to descend. During the descent of the second cam 78, the arc-shaped surface of the end of the second cam 78 away from the convex block 77 is inserted into a slot 631. As the second cam 78 continues to descend, it cooperates with the slot 631 to drive the sliding rod 63 to descend simultaneously, thereby pressing the simulated material 44 down a certain distance.

[0062] That is, after the push plate 72 moves to the left, driving the telescopic rod 34 and push rod 35 to push the pruning shears trigger and trigger the pruning shears to cut the simulated material 44 once, the push plate 72 pushes the telescopic rod 34, push rod 35 and rack 3 75 to the right. At this time, the trigger of the pruning shears is no longer squeezed, and the moving blade and fixed blade of the pruning shears are in an open state. At the same time, when the push plate 72 pushes the telescopic rod 34 and push rod 35 to reset, the sliding rod 63 is lowered by the rotating roller 76 and cam 73, rotating rod 74 and convex block 77 and cam 78, etc., pressing the simulated material 44 that has been cut once down a certain distance, and the hydraulic cylinder 71 is activated again, so that its output end drives the push plate 72, telescopic rod 34 and push rod 35 to move to the left to squeeze the trigger and trigger the pruning shears.

[0063] It should be noted that the slot 631 inserted during the descent of cam 2 78 is the closest slot 631 to the side of the arc surface of cam 2 78 away from the convex block 77.

[0064] like Figure 10 and Figure 11 The pushing component 6 includes a fixing plate 61 fixedly installed at the lower end of the protective cover 11, and the fixing plate 61 is located on the right side of the rotating component 7. A fixing rod 66 is fixedly installed at the middle of the lower end of the fixing plate 61. The outer surface of the fixing rod 66 is slidably installed with the sliding rod 63. A round block 65 is fixedly installed on the lower right side of the sliding rod 63. The lower end of the round block 65 is in close contact with the upper end of the simulation material 44.

[0065] Furthermore, during the process of sliding rod 63 being driven down by cam 2 78 and slot 1 631, sliding rod 63 slides down along the outer surface of fixed rod 66. While sliding down, it drives round block 65 down at the same time. Then round block 65 will squeeze the simulated material 44 downward. The simulated material 44, which has been sheared once, continues to fall a distance. This simulated material 44 can be used again to perform pruning shearing durability torque test.

[0066] Then, repeat the above operation. With the cooperation of push plate 72, telescopic rod 34, push rod 35 and rack 75, after the pruning shears cut the simulated material 44 once, during the reset process of telescopic rod 34 and push rod 35, the sliding rod 63 and round block 65 are used to squeeze the simulated material 44 downwards, and continue to perform the shearing test of the simulated material 44 of the same thickness.

[0067] Furthermore, after the pruning shears have cut the simulated material 44 of the same thickness several times, the simulated material 44 is pressed down to the bottom by the round block 65 and the sliding rod 63, thereby stopping the operation of the second hydraulic cylinder 71. At the same time, the first hydraulic cylinder 31 is activated, and the output end of the first hydraulic cylinder 31 drives the horizontal plate 32, the two pressure rollers 36, the first limiting plate 33, and the push rod 35 to move upward simultaneously. At this time, the lower end of the first telescopic rod 34 is driven to move upward, and the first telescopic rod 34 retracts and shortens as a whole, thereby releasing the pressure and locking of the two pressure rollers 36 on the pruning shears. At the same time, the outer surface of the push rod 35 moves away from the trigger of the pruning shears.

[0068] Next, the hydraulic drive device in the prior art, together with the drive shaft 13, drives the fixed seat 21, the two arc-shaped clamps 22 and the pruning shears to move backward along the two guide rails 12, and detects the power supply and the wear and tear of each structure after the pruning shears have been running for a period of time.

[0069] In another embodiment of this application, such as Figure 7 The test auxiliary component 4 also includes a one-way rotating shaft 47 fixedly installed on the lower side of the outer surface of the fixed cylinder 41. A gear 46 is fixedly installed on the outer surface of the one-way rotating shaft 47. A U-shaped rod 43 is fixedly installed on the front side of the left end of the fixed seat 21. A rack 45 is fixedly installed on the front side of the right end of the U-shaped rod 43.

[0070] With the cooperation of the one-way rotating shaft 47, when the rack 45 moves backward, it drives the gear 46 to rotate counterclockwise. At this time, the one-way rotating shaft 47 and the fixed cylinder 41 do not rotate. When the rack 45 moves forward, it drives the gear 46 to rotate clockwise. At this time, the one-way rotating shaft 47 and the fixed cylinder 41 rotate simultaneously.

[0071] Furthermore, as the fixed seat 21 is driven to move backward by the drive shaft 13, the fixed seat 21 drives the U-shaped rod 43 and the rack 45 to move backward simultaneously. When the fixed seat 21 just begins to move backward, the outer surfaces of the rack 45 and the gear 46 are not in contact. When the pruning shears move away from below the fixed cylinder 41, the rack 45 and the gear 46 begin to mesh. As the rack 45 continues to move backward, it drives the gear 46 to rotate counterclockwise. At this time, the one-way rotating shaft 47 and the fixed cylinder 41 do not rotate.

[0072] In another embodiment of this application, such as Figure 8 and Figure 9 The reset assembly 5 includes a rotating roller 51 rotatably mounted on the upper end of the test bench 1. The rotating roller 51 is located inside the fixed cylinder 41. A circular plate 511 is fixedly mounted on the upper end of the rotating roller 51. A gear 512 is fixedly mounted on the lower side of the outer surface of the rotating roller 51. A limiting roller 513 is fixedly mounted on one side of the upper end of the circular plate 511. A limiting plate 53 is slidably mounted on the outer surface of the limiting roller 513. A bending roller 54 is fixedly mounted in the middle of the rear end of the limiting plate 53. A bending rod 55 is fixedly mounted on the left side of the rear end of the bending roller 54. A telescopic rod 56 is fixedly mounted on the front side of the lower end of the bending rod 55. A limiting block 57 is fixedly mounted on the rear end of the telescopic rod 56. An L-shaped roller 58 is fixedly mounted on the rear side of the lower end of the bending rod 55. A wedge block 59 is fixedly mounted on the front end of the horizontal part of the L-shaped roller 58.

[0073] The upper part of the aforementioned limiting block 57 is arc-shaped, and the telescopic rod 56 is equipped with a spring inside. After the telescopic rod 56 is compressed and shortened, if the compressing force is removed, the spring inside the telescopic rod 56 will automatically restore the original length.

[0074] like Figure 8 The reset assembly 5 includes a guide groove 541 and a guide rod 551 fixedly installed at the lower end of the protective cover 11. The inner surface of the guide groove 541 is slidably connected to the outer surface of the horizontal part of the bending roller 54, and the lower end of the guide rod 551 is slidably connected to the upper end of the bending rod 55.

[0075] The reset assembly 5 also includes a rack 52 fixedly installed on the right side of the front end of the mounting base 21.

[0076] Furthermore, as the fixed base 21 moves backward, it drives the rack 2 52 to move backward simultaneously. At this time, the rack 2 52 meshes with the outer surface of the gear 2 512. As the rack 2 52 moves backward, it drives the rotating roller 1 51 to rotate clockwise through its cooperation with the gear 2 512. The length of the rack 2 52 can only make the gear 2 512 and the rotating roller 1 51 rotate half a turn.

[0077] During the process of the first rotating roller 51 rotating half a turn clockwise, it will drive the second circular plate 511 and the limiting roller 513 to rotate simultaneously. Then, through the cooperation of the second limiting plate 53, the second limiting plate 511 and the limiting roller 513 will drive the second limiting plate 53, the bending roller 54 and the bending rod 55 to move forward simultaneously during the process of the second circular plate 511 and the limiting roller 513 rotating half a turn clockwise.

[0078] Similarly, during the forward movement of the bending roller 54 and the bending rod 55, the bending roller 54 slides forward along the inner surface of the guide groove 541, and the bending rod 55 slides forward along the lower surface of the guide rod 551, so as to avoid the bending roller 54 and the bending rod 55 shifting position during the forward movement.

[0079] As the bending roller 54 and bending rod 55 move forward, the bending rod 55 drives the telescopic rod 56, the limiting block 57, the L-shaped roller 58, and the wedge block 59 to move forward simultaneously.

[0080] like Figure 11 A rectangular plate 64 is fixedly installed on the upper side of both the front and rear ends of the sliding rod 63. Several springs 62 are fixedly installed on the upper ends of the two rectangular plates 64 together with the lower end of the fixed plate 61. Several slots 632 are opened at the front end of the sliding rod 63.

[0081] During the process of the pruning shears cutting the simulated material 44, the sliding rod 63 indirectly descends and squeezes the circular block 65 and the simulated material 44. During the descent of the sliding rod 63, it will drive the two rectangular plates 64 to descend simultaneously. At this time, several springs 62 are stretched. When the simulated material 44 is pressed down to the lowest point by the sliding rod 63 and the circular block 65, several springs 62 are stretched to their longest length.

[0082] Similarly, when the sliding rod 63 is not moving, the limiting block 57 is in close contact with the inner surface of a slot 632, such as... Figure 10 This ensures that the sliding rod 63 and the circular block 65 maintain the state that limits the height of the simulated material 44.

[0083] Furthermore, as the sliding rod 63 moves downwards driven by the cam 78 and the convex block 77, the upper arc-shaped surface of the limiting block 57 engages with the sliding rod 63. As the slot 632 and the sliding rod 63 move downwards, the limiting block 57 is pushed forward, simultaneously pushing the rear end of the telescopic rod 56 forward. The bending rod 55 then compresses the telescopic rod 56 until the limiting block 57 moves forward and disengages from the inner surface of the slot 632. At this point, the limiting block 57 no longer limits the height of the sliding rod 63 through the slot 632, while the front end of the sliding rod 63 keeps the telescopic rod 56 in a compressed state.

[0084] After the sliding rod 63 is driven down a certain distance by the cam 78, the sliding rod 63 stops descending. At this time, the groove 632 at the front end of the sliding rod 63 is at the same height as the limiting block 57. Similarly, the sliding rod 63 no longer presses the telescopic rod 56 through the limiting block 57. At this time, the telescopic rod 56 pushes the rear end of the telescopic rod 56 and the limiting block 57 backward through the internal spring. During the backward movement of the limiting block 57, the limiting block 57 is once again in close contact with the inner surface of the matching groove 632, and thus the limiting block 57 continues to limit the height of the sliding rod 63 and the round block 65.

[0085] Furthermore, after the pruning shears cut the same simulated material 44 several times, the fixed base 21 drives the pruning shears to move backward. At this time, through the cooperation of the rack 2 52 and the gear 2 512, the rotating roller 1 51, the circular plate 2 511 and the limiting roller 513 are driven to rotate clockwise by half a turn, thereby causing the bending roller 54 and the bending rod 55 to move forward.

[0086] like Figure 14 When the bending rod 55 moves forward, it will drive the telescopic rod 56, the limiting block 57, the L-shaped roller 58, and the wedge block 59 forward simultaneously. During the forward movement of the limiting block 57, the limiting block 57 gradually moves away from the inner surface of the slot 632. When the limiting block 57 is disengaged from the inner surface of the slot 632, the limiting block 57 no longer limits the height of the sliding rod 63. Similarly, when the L-shaped roller 58 and the wedge block 59 are driven forward, the wedge block 59 gradually inserts between the cam 78 and the sliding rod 63. Through the wedge design of the wedge block 59, during the movement of the wedge block 59 between the sliding rod 63 and the cam 78, it will push the cam 78 to rotate clockwise a certain distance, causing the cam 78 to rotate away from the sliding rod 63. At the same time, the rotation of the cam 78 will stretch the arc-shaped telescopic rod 772.

[0087] Furthermore, when the limiting block 57 is completely disengaged from the slot 632, the cam 78 also moves away from the sliding rod 63. At this time, the stretched springs 62, through the cooperation of the two rectangular plates 64 and the fixed plate 61, drive the sliding rod 63 to move upward along the fixed rod 66 to reset.

[0088] Furthermore, after the wear test of the pruning shears is completed, the drive shaft 13 continues to push the fixed seat 21, the two arc-shaped clamps 22, and the pruning shears forward to prepare for the next set of shear wear tests.

[0089] Furthermore, as the fixed seat 21 moves forward, it simultaneously pushes the rack 2 52 forward. Then, through the engagement of the gear 2 512, the rotating roller 1 51, the circular plate 2 511, and the limiting roller 513 rotate counterclockwise by half a turn. During the rotation of the circular plate 2 511 and the limiting roller 513, through the engagement of the guide groove 541 and the guide rod 551, the bending roller 54 and the bending rod 55 are driven to move backward during the counterclockwise half-turn rotation of the circular plate 2 511 and the limiting roller 513.

[0090] As the bending rod 55 moves backward, it drives the telescopic rod 56, the limiting block 57, the L-shaped roller 58, and the wedge block 59 to move backward simultaneously. At this time, the limiting block 57 is in close contact with the inner surface of the slot 632 located at the lowest end of the front end of the sliding rod 63. At the same time, the wedge block 59 disengages from the cam 78, and the side of the outer arc surface of the cam 78 away from the convex block 77 continues to contact the left end of the sliding rod 63.

[0091] Similarly, as the fixed base 21 moves forward, it pushes the rack 45 forward. At this time, the rack 45 meshes with the gear 46, and through the cooperation of the one-way rotating shaft 47, the fixed cylinder 41 rotates clockwise by a certain angle. During the rotation of the fixed cylinder 41, the circular plate 42 and several simulated materials 44 rotate simultaneously. At this time, the shortest simulated material 44 remaining after being cut is rotated to the left. The two arc blocks 421 can be manually released from their restriction on the cut simulated material 44, and new simulated materials 44 of different thicknesses or hardness can be replaced. The specific changes are made according to the needs of using the pruning shears.

[0092] While the circular plate 42 rotates clockwise, a new simulated material 44 is rotated to a position aligned with the center of the pruning shears, in preparation for the next set of pruning shear wear tests.

[0093] When the new simulated material 44 rotates to a position aligned with the center of the pruning shears, the rack 45 no longer meshes with the gear 46. At this point, the fixed base 21 drives the rack 45, the U-shaped rod 43, and the pruning shears to continue moving forward until the new simulated material 44 is located in the middle of the moving and fixed blades of the pruning shears. At this point, the drive shaft 13 stops running. Then, through the output end of the hydraulic cylinder 31, the two pressure rollers 36 are lowered to press the pruning shears. The above operation is repeated to allow the pruning shears to continue cutting the simulated material 44 and to test the working durability torque performance.

[0094] It should be noted that the specific installation method, circuit connection method and control method of hydraulic cylinder 31 and hydraulic cylinder 71 used in this invention are all conventional designs, and will not be described in detail in this invention.

[0095] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A lithium-ion battery pruning shear torque testing machine, comprising a testing platform (1) and a protective cover (11) for protecting the internal structure during testing, characterized in that: A drive shaft (13) is provided at the middle of the upper end of the test platform (1). Guide rails (12) are fixedly installed on the upper end of the test platform (1) on both sides of the drive shaft (13). A fixing component one (2) for supporting and clamping the pruning shears is provided on the upper end of the test platform (1). A fixing component two (3) for pressing and fixing the pruning shears is provided at the lower end of the protective cover (11) above the fixing component one (2). A device for assisting in testing the performance of the pruning shears is provided on the upper end of the test platform (1) in front of the fixing component one (2). The test auxiliary component (4) is located inside the test platform (1) with a reset component (5) at the upper end. The protective cover (11) at the front side of the fixed component (3) is provided with a rotating component (7). The protective cover (11) at the lower end is provided with a pushing component (6) at the right side of the rotating component (7). The pushing component (6) includes a sliding rod (63) for pushing the shearing material down. The left end of the sliding rod (63) is provided with several slots (631).

2. The lithium-ion pruning shear torque testing machine according to claim 1, characterized in that: The fixing component 1 (2) includes a fixing seat (21) that is slidably installed with two guide rails (12), and the lower end of the fixing seat (21) is fixedly connected to the front side of the upper end of the drive shaft (13). The upper end of the fixing seat (21) is symmetrically provided with arc-shaped clamps (22) for clamping and fixing the handle of the pruning shears.

3. The lithium-ion pruning shear torque testing machine according to claim 1, characterized in that: The second fixing component (3) includes a hydraulic cylinder (31) fixedly installed at the lower end of the protective cover (11). A horizontal plate (32) is fixedly installed at the output end of the hydraulic cylinder (31). A pressure roller (36) is symmetrically fixedly installed at the lower end of the horizontal plate (32). A limiting plate (33) is fixedly installed on the front right side of the horizontal plate (32). A telescopic rod (34) is slidably installed on the inner surface of the limiting plate (33). A push rod (35) is fixedly installed at the lower end of the telescopic rod (34) and is in close contact with one side of the pruning shears.

4. The lithium-ion pruning shear torque testing machine according to claim 2, characterized in that: The test auxiliary component (4) includes a fixed cylinder (41) fixedly installed on the upper end of the test platform (1). A circular plate (42) is fixedly installed on the upper side of the outer surface of the fixed cylinder (41). A plurality of circular holes (422) are arranged in a ring array on the upper end of the circular plate (42). Arc-shaped blocks (421) are symmetrically arranged on the inner surface of the plurality of circular holes (422). Two circular holes (422) located on the inner surface of the same circular hole (422) are close to each other and are provided with a simulated material (44) for pruning shear test.

5. A lithium-ion pruning shear torque testing machine according to claim 4, characterized in that: The test auxiliary component (4) also includes a one-way rotating shaft (47) fixedly installed on the lower side of the outer surface of the fixed cylinder (41). A gear (46) is fixedly installed on the outer surface of the one-way rotating shaft (47). A U-shaped rod (43) is fixedly installed on the front left side of the fixed seat (21). A rack (45) is fixedly installed on the front right side of the U-shaped rod (43).

6. The lithium-ion battery pruning shear torque testing machine according to claim 3, characterized in that: The rotating assembly (7) includes a hydraulic cylinder two (71) fixedly installed at the lower end of the protective cover (11). A push plate (72) is fixedly installed at the output end of the hydraulic cylinder two (71). A slider (721) is fixedly installed at the upper end of the push plate (72). The outer surface of the slider (721) is slidably installed with the lower end of the protective cover (11). The rear side of the lower end of the push plate (72) is fixedly connected to the upper end of the telescopic rod one (34). A rack three (75) is fixedly installed at the front side of the lower end of the push plate (72). The rotating assembly (7) includes a rotating roller two (76) rotatably installed at the lower end of the protective cover (11). A gear three (761) is provided on the rear side of the outer surface of the rotating roller two (76). The outer surface of the rotating roller two (76) meshes with the rack three (75). A cam one (73) is fixedly installed on the front side of the outer surface of the rotating roller two (76). A rotating rod (74) is rotatably installed on the upper side of the front end of the cam one (73).

7. A lithium-ion pruning shear torque testing machine according to claim 6, characterized in that: The rotating assembly (7) also includes a sliding groove (79) fixedly installed at the lower end of the protective cover (11). A convex block (77) is slidably installed on the rear side of the sliding groove (79). A second cam (78) is rotatably installed on the upper rear side of the convex block (77). A retaining roller (771) is fixedly installed on the rear end of the convex block (77) located on the right side of the second cam (78). An arc-shaped telescopic rod (772) is fixedly installed on the outer surface of the convex block (77) and the right side of the second cam (78). The lower rear end of the convex block (77) is rotatably connected to the rotating rod (74).

8. A lithium-ion pruning shear torque testing machine according to claim 4, characterized in that: The pushing component (6) includes a fixed plate (61) fixedly installed at the lower end of the protective cover (11), and the fixed plate (61) is located on the right side of the rotating component (7). A fixed rod (66) is fixedly installed at the middle of the lower end of the fixed plate (61). The outer surface of the fixed rod (66) is slidably installed with the sliding rod (63). A rectangular plate (64) is fixedly installed on the upper side of the front end and the rear end of the sliding rod (63). Several springs (62) are fixedly installed on the upper ends of the two rectangular plates (64) together with the lower end of the fixed plate (61). A round block (65) is fixedly installed on the lower side of the right end of the sliding rod (63). The lower end of the round block (65) is in close contact with the upper end of the simulation material (44). Several slots (632) are opened at the front end of the sliding rod (63).

9. A lithium-ion pruning shear torque testing machine according to claim 4, characterized in that: The reset assembly (5) includes a rotating roller (51) rotatably mounted on the upper end of the test bench (1). The rotating roller (51) is located inside the fixed cylinder (41). A circular plate (511) is fixedly mounted on the upper end of the rotating roller (51). A gear (512) is fixedly mounted on the lower side of the outer surface of the rotating roller (51). A limiting roller (513) is fixedly mounted on one side of the upper end of the circular plate (511). A limiting plate (53) is slidably mounted on the outer surface of the limiting roller (513). A bending roller (54) is fixedly installed at the middle of the rear end of the limiting plate two (53). A bending rod (55) is fixedly installed on the left side of the rear end of the bending roller (54). A telescopic rod two (56) is fixedly installed on the front side of the lower end of the bending rod (55). A limiting block (57) is fixedly installed at the rear end of the telescopic rod two (56). An L-shaped roller (58) is fixedly installed on the rear side of the lower end of the bending rod (55). A wedge block (59) is fixedly installed at the front end of the horizontal part of the L-shaped roller (58).

10. A lithium-ion battery pruning shear torque testing machine according to claim 9, characterized in that: The reset assembly (5) includes a guide groove (541) and a guide rod (551) fixedly installed at the lower end of the protective cover (11). The inner surface of the guide groove (541) is slidably connected to the outer surface of the horizontal part of the bending roller (54). The lower end of the guide rod (551) is slidably connected to the upper end of the bending rod (55). The reset assembly (5) also includes a rack (52) fixedly installed on the right side of the front end of the fixed base (21).

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