Tool for testing resistance value of cable with variable diameter clamping hole
By designing the guide rails, slides, lead screws and sprocket chain components of the clamping assembly, the problem that existing equipment is difficult to adapt to cables of different diameters is solved, and stable clamping and accurate resistance testing are achieved.
Patent Information
- Application Number
- CN202422392374.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-09-30
AI Technical Summary
Existing equipment is difficult to adapt to cables of different diameters, which leads to easy deformation during clamping, affecting the resistance test results.
The clamping components are adopted, including guide rails, sliders, lead screws, tightening shafts and sprocket chain components. The adaptive clamping of cables of different diameters can be achieved through distance and position adjustment devices to ensure that the cables are suspended and straightened.
It realizes stable clamping of cables of different diameters, avoids deformation, and improves the accuracy of resistance value testing.
Smart Images
Figure CN223272596U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of cable resistance testing, in particular to a clamping hole variable diameter cable resistance testing tool. Background Art
[0002] A cable is a device for transmitting electrical energy or signals, usually composed of several or several groups of wires. The cable includes a conductor, an insulation layer, a filler, and a sheath. The cable material refers to the insulation layer that wraps the conductor, the sheath that protects the cable, and the filler filled between the insulation layer and the sheath. The formula of the cable material directly affects the physical properties of the cable, such as hardness, low temperature resistance, flame retardancy, and insulation.
[0003] During the production process of cable conductors, the cable core needs to be tested for resistance. During the test, both ends of the cable sample need to be clamped to keep it suspended and straight. Existing equipment is difficult to adapt to the clamping of cables of different diameters. Most of them are clamped by line contact, which can easily deform the cable sample and affect the test results. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a clamping hole variable diameter cable resistance value testing tool which is adaptable to cables with different diameters.
[0005] In order to solve the above technical problems, the present invention includes a base plate, and clamping assemblies are respectively provided at both ends of the base plate, and the clamping assembly includes a guide rail, and two sliders are provided on the upper part of the guide rail. The two sliders are connected by a distance adjustment device, and clamping parts are installed on the upper part of the sliders. Fixed shafts distributed up and down are provided at positions close to the two clamping parts, and a tensioning shaft is installed at positions where the two clamping parts are far away from each other. A position adjustment device is provided between the tensioning shaft and the clamping part, and multiple groups of sprocket chain assemblies equidistantly arranged along the axial direction are installed between the tensioning shaft and the two fixed shafts. When the two sliders approach each other, the chain between the fixed shafts of the two clamping parts approaches each other to clamp the cable between them.
[0006] Furthermore, the clamping part includes two C-shaped blocks arranged on the slider, the C-shaped block openings of the two sliders on different sides of the same group of clamping components are opposite to each other, the two ends of the fixed shaft are installed between the open ends of the two C-shaped blocks on the same slider, a movable block is arranged in the C-shaped block, and the two ends of the tensioning shaft are respectively connected to the movable blocks of the two C-shaped blocks on the same slider, and a position adjustment device is arranged between the movable block and the clamping part.
[0007] Preferably, the distance adjustment device includes a screw, the two sliders pass through the same screw and cooperate with the screw thread, the spiral rotation directions of the two ends of the screw are different, and a crank handle is installed at one end of the screw.
[0008] In one preferred configuration, the position adjustment device includes a hydraulic rod fixedly installed in the C-shaped block toward the end of the lead screw, and a movable rod end of the hydraulic rod is fixedly connected to the movable block.
[0009] In order to better clamp the cable without interference, the sprocket chains on the upper sides of the two sliders of the same clamping assembly are staggered.
[0010] To sum up, when the present invention is used, the two ends of the cable are respectively arranged between the two clamping parts of the two clamping assemblies, the lead screw is rotated to bring the two clamping parts closer, and the cable is clamped by multiple chains on the two clamping parts. By adjusting the tension of the chain, it can also adapt to the clamping of cables of different diameters. By adjusting the tensioning shaft, the side of the cable can be better fitted, and the cable is not easily deformed during the clamping process. The part located between the two clamping assemblies can be kept in a suspended and straight state, which can better cooperate with the resistance testing device to better test the resistance value. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
[0012] Figure 1 This is a schematic diagram of the top structure of the utility model;
[0013] Figure 2 This is a side structural diagram of the present utility model;
[0014] Figure 3 This is a schematic top view of the structure of the clamping portion of the utility model clamping the cable;
[0015] Figure 4 This is a side view of the structure of the clamping part of the utility model clamping the cable. DETAILED DESCRIPTION
[0016] Refer to the attached Figure 1-4The clamping hole variable diameter cable resistance test fixture includes a base plate 1, and clamping components are respectively set at both ends of the base plate 1. The clamping component includes a guide rail 2. Two sliders 3 are set on the upper part of the guide rail 2. The two sliders are connected by a distance adjustment device to adjust the distance between them. The distance adjustment device includes a screw 11. The two sliders pass through the same screw and cooperate with the screw thread. The spiral rotation directions of the two ends of the screw are different. A crank is installed at one end of the screw. A clamping part is installed on the upper part of the slider. The fixed shaft 4 distributed up and down is set at the position close to the two clamping parts. The tensioning shaft 5 is installed at the position where the two clamping parts are far away from each other. A position adjustment device is provided between the shaft and the clamping part, and multiple groups of sprocket chain assemblies equidistantly arranged along the axial direction are installed between the tensioning shaft and the two fixed shafts. When the cable needs to be clamped, the cable is placed between the two clamping parts, and the corresponding two sliders are close to each other. The chain 6 between the fixed shafts of the two clamping parts is close to each other to clamp the cable therebetween. By adjusting the position of the tensioning shaft through the position adjustment device, the tension of the chain that clamps the cable can be adjusted to maintain the clamping effect on the cable, and the chain can better fit the side of the cable. By adjusting the tension of the chain, it can also adapt to the clamping of cables of different diameters.
[0017] The clamping part includes two C-shaped blocks 10 arranged on the slider. The C-shaped block openings of the two sliders in the same group of clamping components are opposite to each other. The two ends of the fixed shaft are installed at the open ends of the C-shaped block. A movable block 7 is set in the C-shaped block. A hydraulic rod 8 is fixedly installed in the C-shaped block towards the end of the screw. The movable rod end of the hydraulic rod is fixedly connected to the movable block 7. The two ends of the tensioning shaft are respectively connected to the corresponding movable blocks 7. The tension of the chain can be adjusted by synchronously adjusting the extension and retraction of the two hydraulic rods.
[0018] like Figure 3 As shown, the sprocket chains on the upper sides of the two sliders of the same clamping assembly are staggered. This design can ensure that when the two clamping parts are close to each other, the sprocket chains on different sides are staggered and will not interfere with each other, which can better clamp the cable 9.
[0019] When in use, the two ends of the cable are respectively placed between the two clamping parts of the two clamping assemblies, the lead screw is rotated to bring the two clamping parts closer, and the cable is clamped by multiple chains on the two clamping parts. By adjusting the tension of the chain, it can also adapt to the clamping of cables with different diameters. By adjusting the tensioning shaft, the side of the cable can be better fitted, and the cable is not easily deformed during the clamping process. The part located between the two clamping assemblies can be kept in a suspended and straight state, which can better cooperate with the resistance testing device to better test the resistance value.
[0020] The middle position of the lead screw 11 is mounted on the guide rail via a shaft seat. This design can ensure that the two sliders move synchronously relative to each other.
[0021] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.
Claims
1. A clamping hole variable diameter cable resistance test tool, characterized by: It includes a base plate, and clamping assemblies are respectively arranged at both ends of the base plate. The clamping assembly includes a guide rail, two sliders are arranged on the upper part of the guide rail, the two sliders are connected by a distance adjustment device, and clamping parts are installed on the upper part of the sliders. Fixed shafts distributed up and down are arranged at positions close to the two clamping parts, and a tensioning shaft is installed at positions where the two clamping parts are far away from each other. A position adjustment device is arranged between the tensioning shaft and the clamping part, and multiple groups of sprocket chain assemblies equidistantly arranged along the axial direction are installed between the tensioning shaft and the two fixed shafts. When the two sliders approach each other, the chain between the fixed shafts of the two clamping parts approaches each other to clamp the cable between them.
2. The clamping hole variable diameter cable resistance test tool as claimed in claim 1, characterized in that : The clamping part includes two C-shaped blocks arranged on the slider. The openings of the C-shaped blocks of the two sliders on different sides of the same group of clamping components are opposite to each other. The two ends of the fixed shaft are installed between the open ends of the two C-shaped blocks on the same slider. A movable block is arranged in the C-shaped block. The two ends of the tensioning shaft are respectively connected to the movable blocks of the two C-shaped blocks on the same slider. A position adjustment device is arranged between the movable block and the clamping part.
3. The clamping hole variable diameter cable resistance test tool as claimed in claim 1, characterized in that : The distance adjustment device includes a screw, two sliders pass through the same screw and cooperate with the screw thread, the spiral rotation directions at both ends of the screw are different, and a crank handle is installed at one end of the screw.
4. The clamping hole variable diameter cable resistance test tool as claimed in claim 2, characterized in that : The position adjustment device includes a hydraulic rod fixedly installed in the C-shaped block toward the end of the screw, and the movable rod end of the hydraulic rod is fixedly connected to the movable block.
5. The clamping hole variable diameter cable resistance test tool as claimed in claim 1, characterized in that : The sprocket chains on the upper sides of the two sliders of the same set of clamping components are staggered.