A cable strip tensile testing device

Abstract

The utility model relates to material testing equipment technical field, concretely is a kind of cable material strip tensile testing device, including outer clamping shell, clamping groove, chuck, adjusting component, mounting block, mounting component, dismounting baffle and dismounting component, the utility model discloses more convenient when needing to install different chuck by setting mounting block and mounting component;By setting adjusting ring, adjusting slot, adjusting pin and adjusting guide groove, chuck can be installed quickly, while, ensure the accuracy of chuck mounting position;By setting dismounting baffle and dismounting component, it is convenient for operator to dismount chuck, improves the dismounting efficiency of chuck.

Description

Technical Field

[0001] This utility model relates to the field of material testing equipment technology, specifically a cable strip tensile testing device. Background Technology

[0002] In the field of polymer material research and development and quality control, tensile performance testing of cable strips is a crucial step in evaluating their mechanical properties. This test, by measuring parameters such as tensile strength, elongation at break, and modulus of elasticity, provides vital data support for the durability and reliability of cable products. Currently, common tensile testing devices typically consist of core components such as a loading frame, force sensor, displacement measurement system, and clamps. Their working principle involves applying axial tensile force to a standardized dumbbell-shaped specimen until it breaks, and accurately recording the stress-strain relationship during this process.

[0003] The test sample shapes of cable strips exhibit significant diversity, directly determining the necessity of fixture selection. Standard testing procedures require hot-pressing and plasticizing granular strips into standard sheets, which are then cut into dumbbell-shaped specimens. However, in various scenarios such as R&D or incoming material inspection, testing needs often exceed this scope: sometimes it's necessary to directly test uncut, pressed strip samples to quickly assess the plasticizing effect; other times, non-standard sized strips are tested to obtain mechanical data in specific directions. These diverse samples have vastly different thicknesses, widths, and load-bearing cross-sectional areas at their clamping points. General-purpose fixtures can only provide stable clamping for standard dumbbell-shaped strips. When dealing with strip-shaped, rod-shaped, or other special geometrically shaped samples, instability, uneven stress distribution, or localized sample crushing can easily occur due to mismatch between the clamping surface and the sample contour, making testing impossible or resulting in severely distorted data.

[0004] Furthermore, even for standard dumbbell-shaped test specimens, the physical properties of different types of cable materials vary greatly. Harder engineering plastic strips require clamps that provide strong gripping force and deep serrations to prevent slippage; while soft thermoplastic elastomers or polyethylene strips are extremely sensitive to clamping force, and excessive pressure can directly cause premature tearing at the shoulder. This clamping challenge arising from the inherent characteristics of the materials further reinforces the objective need for flexible replacement of specialized clamps based on the test object.

[0005] Therefore, changing to a suitable fixture based on the sample shape and material properties is crucial in testing; however, the fixture replacement process under current technology is quite inconvenient. Traditional connection methods heavily rely on operators using tools for tedious bolt tightening. This process is not only inefficient and disruptive to the testing rhythm, but it can also introduce alignment errors due to human error during disassembly and assembly, compromising the coaxiality of the testing system and ultimately systematically affecting the accuracy of the data.

[0006] To address this, a tensile testing device for cable strips was proposed. Summary of the Invention

[0007] The purpose of this invention is to provide a cable strip tensile testing device to solve the problem in the prior art that different clamps need to be changed for different cable materials during the cable strip testing process, and the existing device is inconvenient when changing clamps.

[0008] To achieve the above objectives, this utility model provides the following technical solution: A tensile testing device for cable strips includes a testing machine with a fixed frame and a movable frame. Both the fixed frame and the movable frame are equipped with mounting bases. The device also includes an outer clamping shell, a clamping groove, clamps, an adjusting component, a mounting block, a mounting component, a disassembly spring plate, and a disassembly component. Two sets of outer clamping shells are provided, each set mounted on the mounting bases of the fixed frame and the movable frame respectively. The clamping groove is located at the front end of the outer clamping shell, and the clamps are slidably connected within the clamping groove. Two clamps are symmetrically arranged within each outer clamping shell. The adjusting component is located within the outer clamping shell to move the two clamps closer together or further apart. The mounting block and the mounting component are located within the outer clamping shell, and the mounting component cooperates with the mounting block to install the clamps within the outer clamping shell. The disassembly spring plate and the disassembly component are located within the clamping groove, and the disassembly component cooperates with the disassembly spring plate and the mounting component to facilitate the removal of the clamps during disassembly.

[0009] Preferably, the adjusting component includes an adjusting groove, an adjusting rack, an adjusting ring, an adjusting slot, an adjusting gear, an adjusting pin, and an adjusting guide groove. The adjusting groove is formed inside the outer clamping shell, the adjusting rack is slidably connected inside the adjusting groove, the adjusting ring is disposed on the side of the adjusting rack near the clamping groove, the clamping head has an adjusting slot that engages with the adjusting ring, the adjusting gear is rotatably connected to the outer clamping shell and meshes with the adjusting rack, the adjusting pin is disposed at the rear end of the clamping head, the adjusting guide groove is formed at the rear end of the clamping groove, and the adjusting pin is slidably connected to the adjusting guide groove.

[0010] In the above scheme, the adjusting guide groove moves from top to bottom toward the center of symmetry of the outer clamping shell, so that when the adjusting ring pushes the two clamps on both sides to move downward, the two clamps inside the outer clamping shell can move closer to each other with the cooperation of the adjusting pin and the adjusting guide groove.

[0011] Preferably, the adjusting gear is an incomplete gear, and the front end of the adjusting gear is also connected to a force-saving pull rod.

[0012] The purpose of the above design is to make it easier and less strenuous for the operator to adjust the position of the chuck by rotating the adjusting gear to adjust the position of the adjusting rack and thus the position of the chuck when it is necessary to rotate the adjusting gear.

[0013] Preferably, the mounting components include a mounting groove, a mounting chamfer, a mounting connecting post, a mounting lever, and a mounting spring. The mounting groove is formed on both sides of the front end of the inner groove of the outer clamping shell. The mounting block is slidably connected in the mounting groove. The mounting chamfer is formed on the front side of the mounting block and mates with the rear end of the chuck. The rear end of the mounting block mates with the front end of the chuck. The mounting connecting post is rotatably connected to the side of the mounting block away from the clamping groove. The mounting lever is fixedly connected to the front end of the mounting connecting post. The two ends of the mounting spring abut against the end of the mounting connecting post away from the mounting block and the inner wall of the outer clamping shell, respectively.

[0014] Preferably, the outer clamping shell is further provided with a fixing groove, which communicates with the mounting groove and cooperates with the mounting lever.

[0015] In the above scheme, when it is necessary to disassemble the chuck, the operator pushes the installation lever, causing the installation lever to move the installation block and compress the installation spring until the rear end of the installation block disengages from the front end of the chuck. At this time, the installation lever moves to the junction of the fixing groove and the installation groove. Then, the operator rotates the installation lever, causing the installation lever to rotate relative to the installation block, so that the installation block rotates into the fixing groove. Thus, when the operator releases the installation lever to remove the chuck, the installation lever and the installation block will not reset and move back to the front end of the chuck under the action of the installation spring, allowing the operator to disassemble the chuck with one hand.

[0016] Preferably, the disassembly component includes a disassembly groove and a disassembly spring. The disassembly groove is located at the rear end of the clamping groove, and the two ends of the disassembly spring abut against the inner wall of the disassembly groove and the rear end of the disassembly spring plate, respectively.

[0017] Preferably, the front end of the disassembly spring plate and the rear end of the mounting block are further provided with wear-resistant wheels, which roll and rub against the chuck.

[0018] The purpose of the above design is to transform the sliding friction between the mounting block, the disassembly spring plate, and the chuck into rolling friction, thereby reducing the frictional force when the chuck moves close to each other and increasing the service life of the chuck, the mounting block, and the disassembly spring plate.

[0019] Preferably, the clamps extend through both ends of the adjusting slot, and the diameter of the adjusting ring is smaller than the length of both ends of the adjusting slot.

[0020] The purpose of the above design is to facilitate engagement between the adjusting slot and the adjusting ring when the chuck needs to be installed or removed. Simultaneously, the smaller diameter of the adjusting ring compared to the lengths of the front and rear ends of the adjusting slot allows the chuck some forward movement space under the action of the disassembly spring and disassembly plate when the rear end of the mounting block loses contact with the front end of the chuck during disassembly. The disassembly plate ultimately engages with the adjusting ring, preventing the chuck from being pushed forward excessively and falling to the ground, thus providing a certain degree of restraint.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up mounting blocks and mounting components, it is more convenient to install different chucks when needed. By setting up adjusting rings, adjusting slots, adjusting pins and adjusting guides, the chucks can be installed quickly while ensuring the accuracy of the chuck installation position. By setting up disassembly spring plates and disassembly components, it is easy for operators to disassemble the chucks, improving the efficiency of chuck assembly and disassembly. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model; Figure 3 This is a schematic diagram of the internal explosion structure of the outer casing of this utility model; Figure 4 This is a schematic diagram of the mounting component structure of this utility model; Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0023] In the diagram: 1. Testing machine; 2. Fixed frame; 3. Moving frame; 4. Mounting base; 5. Outer clamp; 6. Clamping groove; 7. Clamp; 8. Adjusting component; 9. Mounting block; 10. Mounting component; 11. Removal spring plate; 12. Removal component; 81. Adjusting groove; 82. Adjusting rack; 83. Adjusting ring; 84. Adjusting slot; 85. Adjusting gear; 86. Adjusting pin; 87. Adjusting guide groove; 88. Labor-saving pull rod; 101. Mounting groove; 102. Mounting chamfer; 103. Mounting connecting column; 104. Mounting lever; 105. Mounting spring; 51. Fixed groove; 111. Removal groove; 112. Removal spring; 113. Wear-resistant wheel. Detailed Implementation

[0024] To ensure a clear and complete description of the technical solutions in the embodiments of this utility model, and to make the features and advantages more apparent and understandable, the specific implementation methods of this utility model are described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] Example 1 Please see Figure 1 This utility model provides a tensile testing device for cable strips, including a testing machine 1. The testing machine 1 is equipped with a fixed frame 2 and a movable frame 3. Both the fixed frame 2 and the movable frame 3 are equipped with mounting seats 4. Existing technology can be used for these parts. The testing machine 1 is an electronic universal testing machine 1. The specific positions of the fixed frame 2 and the movable frame 3 can be found in [reference needed]. Figure 1 The mounting base 4 only needs to be able to fix the outer clamp 5, so that the outer clamp 5 on the fixed frame 2 and the outer clamp 5 on the movable frame 3 are aligned with the direction of the clamping groove 6, so that the clamp 7 inside the outer clamp 5 can clamp the upper and lower ends of the cable strip.

[0026] Please see Figures 1 to 5 The cable strip tensile testing device includes an outer clamp 5, a clamping groove 6, a clamp 7, an adjusting component 8, a mounting block 9, a mounting component 10, a disassembly spring plate 11, and a disassembly component 12. Two sets of outer clamps 5 are provided, each set mounted on a mounting base 4 of a fixed frame 2 and a movable frame 3, respectively. The clamping groove 6 is located at the front end of the outer clamp 5, and the clamp 7 is slidably connected within the clamping groove 6. Two clamps 7 are symmetrically arranged within each outer clamp 5. The adjusting component 8 is located within the outer clamp 5 to move the two clamps 7 closer together or further apart. The mounting block 9 and the mounting component 10 are located within the outer clamp 5. The mounting component 10 cooperates with the mounting block 9 to install the clamp 7 within the outer clamp 5. The disassembly spring plate 11 and the disassembly component 12 are located within the clamping groove 6. The disassembly component 12 cooperates with the disassembly spring plate 11 and the mounting component 10 to facilitate the removal of the clamp 7 during disassembly.

[0027] Please see Figures 2 to 3The adjusting component 8 includes an adjusting groove 81, an adjusting rack 82, an adjusting ring 83, an adjusting slot 84, an adjusting gear 85, an adjusting pin 86, and an adjusting guide groove 87. The adjusting groove 81 is located inside the outer clamping shell 5. The adjusting rack 82 is slidably connected to the adjusting groove 81. The adjusting ring 83 is located on the side of the adjusting rack 82 near the clamping groove 6. The clamping head 7 has an adjusting slot 84 that engages with the adjusting ring 83. The adjusting gear 85 is rotatably connected to the outer clamping shell 5 and meshes with the adjusting rack 82. The adjusting pin 86 is located at the rear end of the clamping head 7. The adjusting guide groove 87 is located at the rear end of the clamping groove 6 and is slidably connected to the adjusting guide groove 87.

[0028] As shown in Figure 4, taking the outer clamping shell 5 at the fixed frame 2 as an example, the adjusting guide groove 87 moves from top to bottom towards the center of symmetry of the outer clamping shell 5. This allows the adjusting ring 83 to push the two clamps 7 on both sides downward, so that the two clamps 7 inside the outer clamping shell 5 can move closer to each other with the cooperation of the adjusting pin 86 and the adjusting guide groove 87, thereby achieving the clamping of the cable strip by the two clamps 7. The inclination angles of the left and right ends of the clamping groove 6 and the sides of the clamps 7 are the same as the inclination angles of the adjusting guide groove 87 at the corresponding positions, and the inclination surfaces of the clamps 7 are slidably connected to the inclination surfaces of the clamping groove 6.

[0029] Please see Figure 3 The adjusting gear 85 is an incomplete gear, and a force-saving lever 88 is connected to the front end of the adjusting gear 85. The purpose of this design is that when it is necessary to rotate the adjusting gear 85 to adjust the position of the adjusting rack 82, and thus adjust the position of the chuck 7, the operator can control the force-saving lever 88 to drive the adjusting gear 85 to rotate, thereby making it easier and less strenuous to adjust the position of the chuck 7.

[0030] Please see Figures 4 to 5The mounting component 10 includes a mounting groove 101, a mounting chamfer 102, a mounting connecting post 103, a mounting lever 104, and a mounting spring 105. The mounting groove 101 is formed on both sides of the front end of the inner clamping groove 6 of the outer clamping shell 5. The mounting block 9 is slidably connected in the mounting groove 101. The mounting chamfer 102 is formed on the front side of the mounting block 9 and engages with the rear end of the chuck 7. The rear end of the mounting block 9 engages with the front end of the mounting block 9. This engagement means that when the chuck 7 is installed into the clamping groove 6, the operator aligns the adjusting pin 86 at the rear end of the chuck 7 with the adjusting guide groove 87 at the corresponding position, and then pushes the chuck 7 backward into the clamping groove 6. During this process, the rear end of the chuck 7 first engages with the mounting chamfer 105. With the chamfer 102 in contact, as the chuck 7 continues to push backward, the chuck 7 can push the mounting block 9 into the mounting groove 101 along the mounting chamfer 102 until the chuck 7 is fully installed in the mounting groove 101. At this time, the mounting block 9 is located at the front side of the chuck 7. Finally, the mounting block 9 is reset under the action of the mounting spring 105, so that the mounting block 9 is completely moved to the front end of the chuck 7 and abuts against the front end of the mounting block 9. The mounting connecting post 103 is rotatably connected to the side of the mounting block 9 away from the clamping groove 6. The mounting lever 104 is fixedly connected to the front end of the mounting connecting post 103. The two ends of the mounting spring 105 abut against the end of the mounting connecting post 103 away from the mounting block 9 and the inner wall of the outer clamping shell 5, respectively.

[0031] Specifically, there are various models of clamp 7, including flat clamp 7 suitable for clamping sheet-shaped cable strips, and round clamp 7 suitable for clamping cylindrical cable strips, etc. The appropriate clamp 7 can be replaced according to the application scenario.

[0032] In practical use, when performing tensile tests on cable strips, the operator first prepares a sample of the cable strip, then selects a suitable cable strip clamp 7, and installs the clamp 7 sequentially inside the outer clamp 5. During the installation of the clamp 7, the operator aligns the adjusting pin 86 at the rear end of the clamp 7 with the corresponding adjusting guide groove 87, and aligns the adjusting ring 83 with the adjusting slot 84 on the clamp 7. Then, the clamp 7 is pushed backward so that the rear end of the clamp 7 is in contact with the disassembly spring plate 11 and compresses the disassembly spring 112. Finally, the clamp 7 is placed into the clamping groove 6. During this process, the rear end of the clamp 7 first engages with the installation chamfer 102. As the clamp 7 continues to be pushed backward, the clamp 7 can smoothly... The chamfer 102 pushes the mounting block 9 into the mounting groove 101 until the chuck 7 is fully installed in the mounting groove 101. At this time, the mounting block 9 is located at the front side of the chuck 7. Finally, the mounting block 9 is reset under the action of the mounting spring 105, so that the mounting block 9 is fully moved to the front end of the chuck 7 and abuts against the front end of the mounting block 7. This makes it quick and convenient for the operator to install the chuck 7 without having to tighten multiple sets of bolts. At the same time, after the chuck 7 is installed, it can automatically be positioned accurately through the cooperation of the adjusting ring 83, the adjusting groove 81, the adjusting slot 84 and the adjusting pin 86 on the chuck 7. This avoids the centering error caused by the difference in operation after the chuck 7 is installed, and improves the accuracy of subsequent experimental data.

[0033] After installing the clamps 7 at the fixed clamp and the moving frame 3, the operator first places the cable strip between the two clamps 7 at the fixed frame 2, and then moves the effort-saving lever 88 to rotate the adjusting gear 85. The adjusting gear 85, in the meshing of the adjusting rack 82, moves the adjusting rack 82 downward, which in turn causes the adjusting ring 83, in the cooperation of the adjusting slot 84, to move the clamps 7 downward. When the clamps 7 move downward, with the cooperation of the adjusting pin 86 and the adjusting guide groove 87, the clamps 7 on both sides of the adjusting rack 82 move closer together, thus clamping the cable strip. Then, the operator manipulates the testing machine 1 to adjust the position of the moving frame 3 so that the clamps 7 at the moving frame 3 can be aligned with the other end of the cable strip. Then, the same effort-saving lever 88 is operated to clamp the other end of the cable strip. Finally, the position of the moving frame 3 is finely adjusted so that the cable strip enters the testing state, and subsequent testing can be carried out.

[0034] Example 2 Please see Figures 4 to 5A cable strip tensile testing device is provided, including a mounting component 10. The mounting component 10 includes a mounting groove 101, a mounting chamfer 102, a mounting connecting post 103, a mounting lever 104, and a mounting spring 105. The mounting groove 101 is formed on both sides of the front end of the inner clamping groove 6 of the outer clamping shell 5. The mounting block 9 is slidably connected in the mounting groove 101. The mounting chamfer 102 is formed on the front side of the mounting block 9 and cooperates with the rear end of the clamp 7. The rear end of the mounting block 9 cooperates with the front end of the mounting block 9. The mounting connecting post 103 is rotatably connected to the side of the mounting block 9 away from the clamping groove 6. The mounting lever 104 is fixedly connected to the front end of the mounting connecting post 103. The two ends of the mounting spring 105 abut against the end of the mounting connecting post 103 away from the mounting block 9 and the inner wall of the outer clamping shell 5, respectively.

[0035] The outer clamping shell 5 is also provided with a fixing groove 51, which is connected to the mounting groove 101. The fixing groove 51 cooperates with the mounting lever 104. The cooperation here means that when it is necessary to remove the chuck 7, the operator pushes the mounting lever 104, which causes the mounting lever 104 to move the mounting block 9 and compress the mounting spring 105 until the rear end of the mounting block 9 is separated from the front end of the chuck 7. At this time, the mounting lever 104 moves to the junction of the fixing groove 51 and the mounting groove 101. Then the operator rotates the mounting lever 104, which rotates relative to the mounting block 9, so that the mounting block 9 rotates into the fixing groove 51. Thus, when the operator releases the mounting lever 104 and removes the chuck 7, the mounting lever 104 and the mounting block 9 will not reset and move back to the front end of the chuck 7 under the action of the mounting spring 105, so that the operator can remove the chuck 7 with one hand.

[0036] The disassembly component 12 includes a disassembly groove 111 and a disassembly spring 112. The disassembly groove 111 is located at the rear end of the clamping groove 6, and the two ends of the disassembly spring 112 abut against the inner wall of the disassembly groove 111 and the rear end of the disassembly spring plate 11, respectively.

[0037] Please see Figure 3 Wear-resistant wheels 113 are also provided at the front end of the disassembly spring plate 11 and the rear end of the mounting block 9. The figure only shows the wear-resistant wheel 113 at the disassembly spring plate 11 as an example. The wear-resistant wheel 113 rolls and rubs against the chuck 7. The purpose of this design is to transform the sliding friction between the mounting block 9, the disassembly spring plate 11 and the chuck 7 into rolling friction, thereby reducing the friction force when the chuck 7 moves close to each other and increasing the service life of the chuck 7, the mounting block 9 and the disassembly spring plate 11.

[0038] The adjusting slot 84 extends through the front and rear ends of the chuck 7. The diameter of the adjusting ring 83 is smaller than the length of the front and rear ends of the adjusting slot 84. This design allows the adjusting slot 84 to easily engage with the adjusting ring 83 when the chuck 7 needs to be installed or removed. Simultaneously, the smaller diameter of the adjusting ring 83 compared to the length of the adjusting slot 84 allows the chuck 7 some forward movement space under the action of the disassembly spring 112 and the disassembly spring plate 11 when the rear end of the mounting block 9 loses contact with the front end of the chuck 7 during disassembly. The disassembly spring plate 11 ultimately engages with the adjusting ring 83, preventing the chuck 7 from being pushed out too far and falling to the ground when pushed forward, thus providing a certain degree of restraint.

[0039] The rest of the structure is the same as in Example 1.

[0040] In practical use, after multiple tests on the performance of one shape of a cable strip, if it is necessary to test other shapes and replace different clamps 7 to adapt to them, the operator only needs to sequentially move the mounting levers 104 on the side of each clamp 7, so that the mounting levers 104 drive the mounting blocks 9 to move and compress the mounting springs 105 until the rear end of the mounting blocks 9 disengages from the front end of the clamp 7. The mounting levers 104 move to the junction of the fixing groove 51 and the mounting groove 101. Then the operator rotates the mounting levers 104, so that the mounting levers 104 rotate relative to the mounting blocks 9, so that the mounting blocks 9 rotate into the fixing groove 51. Thus, when the operator releases the mounting levers 104 and removes the clamp 7, the mounting levers 104 and the mounting blocks 9 will not reset and move back to the front end of the clamp 7 under the action of the mounting springs 105, so that the operator can remove the clamp 7 with one hand. After the front end of the chuck 7 loses contact with the mounting block 9, the chuck 7 can automatically move forward a certain distance under the spring force reset of the disassembly spring 112 and the push of the disassembly spring plate 11, so that the chuck 7 can extend a part of the front end of the outer clamping shell 5, making it convenient for the operator to directly grab the extended part of the chuck 7 and to facilitate the operator to disassemble and replace the chuck 7.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A tensile testing device for cable strips, comprising a testing machine (1), wherein the testing machine (1) is provided with a fixed frame (2) and a movable frame (3), and both the fixed frame (2) and the movable frame (3) are provided with mounting bases (4), characterized in that: It also includes an outer clamping shell (5), a clamping groove (6), a clamp (7), an adjusting component (8), a mounting block (9), a mounting component (10), a disassembly spring plate (11), and a disassembly component (12). Two sets of the outer clamping shell (5) are provided, and the two sets of outer clamping shells (5) are respectively mounted on the mounting base (4) of the fixed frame (2) and the movable frame (3). The clamping groove (6) is opened at the front end of the outer clamping shell (5), and the clamp (7) is slidably connected within the clamping groove (6). Two clamps (7) are symmetrically arranged within each outer clamping shell (5). The adjusting component (9) is slidably connected within the clamping groove (6). 8) Set inside the outer clamping shell (5) to drive the two clamps (7) inside the outer clamping shell (5) to move closer or further apart. The mounting block (9) and the mounting component (10) are set inside the outer clamping shell (5). The mounting component (10) is used to cooperate with the mounting block (9) to install the clamps (7) inside the outer clamping shell (5). The disassembly spring plate (11) and the disassembly component (12) are set inside the clamping groove (6). The disassembly component (12) is used to cooperate with the disassembly spring plate (11) and the mounting component (10) to facilitate the removal of the clamps (7) when the clamps (7) are disassembled.

2. The cable strip tensile testing device according to claim 1, characterized in that: The adjusting component (8) includes an adjusting groove (81), an adjusting rack (82), an adjusting ring (83), an adjusting slot (84), an adjusting gear (85), an adjusting pin (86), and an adjusting guide groove (87). The adjusting groove (81) is located inside the outer clamping shell (5). The adjusting rack (82) is slidably connected to the adjusting groove (81). The adjusting ring (83) is located on the side of the adjusting rack (82) near the clamping groove (6). The clamping head (7) has an adjusting slot (84) that engages with the adjusting ring (83). The adjusting gear (85) is rotatably connected to the outer clamping shell (5) and meshes with the adjusting rack (82). The adjusting pin (86) is located at the rear end of the clamping head (7). The adjusting guide groove (87) is located at the rear end of the clamping groove (6) and is slidably connected to the adjusting guide groove (87).

3. The cable strip tensile testing device according to claim 2, characterized in that: The adjusting gear (85) is an incomplete gear, and the front end of the adjusting gear (85) is also connected to a force-saving pull rod (88).

4. The cable strip tensile testing device according to claim 2, characterized in that: The mounting component (10) includes a mounting groove (101), a mounting chamfer (102), a mounting connecting post (103), a mounting lever (104), and a mounting spring (105). The mounting groove (101) is opened on both sides of the front end of the inner clamping groove (6) of the outer clamping shell (5). The mounting block (9) is slidably connected in the mounting groove (101). The mounting chamfer (102) is opened on the front side of the mounting block (9). The mounting chamfer (102) cooperates with the rear end of the chuck (7). The rear end of the mounting block (9) cooperates with the front end of the chuck (7). The mounting connecting post (103) is rotatably connected to the side of the mounting block (9) away from the clamping groove (6). The mounting lever (104) is fixedly connected to the front end of the mounting connecting post (103). The two ends of the mounting spring (105) respectively abut against the end of the mounting connecting post (103) away from the mounting block (9) and the inner wall of the outer clamping shell (5).

5. The cable strip tensile testing device according to claim 4, characterized in that: The outer clamp (5) is also provided with a fixing groove (51), which is connected to the mounting groove (101) and cooperates with the mounting lever (104).

6. The cable strip tensile testing device according to claim 4, characterized in that: The disassembly component (12) includes a disassembly groove (111) and a disassembly spring (112). The disassembly groove (111) is located at the rear end of the clamping groove (6). The two ends of the disassembly spring (112) abut against the inner wall of the disassembly groove (111) and the rear end of the disassembly spring plate (11), respectively.

7. The cable strip tensile testing device according to claim 6, characterized in that: The front end of the disassembly spring plate (11) and the rear end of the mounting block (9) are also provided with wear-resistant wheels (113), which roll and rub against the chuck (7).

8. The cable strip tensile testing device according to claim 2, characterized in that: The front and rear ends of the adjusting slot (84) are connected to the clamp (7), and the diameter of the adjusting ring (83) is smaller than the length of the front and rear ends of the adjusting slot (84).

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