Clamp for cable stripping force detection

Abstract

The utility model discloses a clamp for cable stripping force detection, which belongs to the technical field of cable experiment equipment and comprises a clamp, the clamp comprises a stretching assembly and a fixing assembly, and the stretching assembly comprises a stretching base body, a rotating handle, a fixing guide shaft and a threaded clamping block; the fixing assembly comprises a sphere fixing ejector pin, a clamping block and an ejector pin base. A groove is formed in the middle of the stretching base body, the fixed guide shaft is arranged in the groove in a penetrating mode through threads, the rotary handle is fixed to one side of the fixed guide shaft, and the threaded clamping block is arranged in the groove and connected with the fixed guide shaft. And the sphere fixing ejector pin can be matched with the clamping block to fix the cable in the ejector pin base. According to the utility model, the clamp can clamp the inner core of the cable; the tensile machine is connected with the stretching assembly and the fixing assembly, the stretching assembly and the fixing assembly are pulled to move in opposite directions, the cable is stripped, and force generated by the tensile machine is recorded.

Description

Technical Field

[0001] This utility model relates to a clamp for testing cable peel force, belonging to the technical field of cable testing equipment. Background Technology

[0002] The cable industry is widely used in various fields such as power transmission, electronic equipment, and communication equipment. Cables enable power transmission and information delivery. After cable production, quality inspection is required, one aspect of which involves testing the force required to peel the cable's conductor from its insulation layer. The connection between the conductor and insulation layer affects the cable's connection to busbars or other equipment, the overall strength of the cable, its safety performance, and its insulation performance. The cable peel force test involves fixing the cable's insulation layer and core, typically using clamps. A tensile testing machine is then used to peel the cable's core and insulation layer apart, and the force required to peel them is recorded.

[0003] Currently, experiments testing cable stripping force typically do not use dedicated clamps, and some require manual sample fixing. The testing process is easily affected by human error, interfering with the accuracy of the experiment. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a clamp for testing cable peel force, which solves the problem of inconvenient clamping between the cable core and the insulation layer when testing cable peel force.

[0005] The technical problem to be solved by this utility model is achieved by the following technical solution: a clamp for testing cable peel force, comprising...

[0006] The clamp is capable of holding the cable.

[0007] The clamp includes a tensioning component and a fixing component. The tensioning component includes a tensioning base, a rotating handle, a fixing guide shaft, and a threaded clamping block. The fixing component includes a ball-shaped fixing pin, a clamping block, and a pin base.

[0008] The tensile matrix has a groove in the middle, the fixed guide shaft is threaded through the groove, the rotating handle is fixed to one side of the fixed guide shaft, and the threaded clamp is disposed in the groove and connected to the fixed guide shaft.

[0009] The clamping block is fixed on the ejector pin base. The clamping block has a hole at its center to accommodate the ball-shaped ejector pin. The ball-shaped ejector pin can cooperate with the clamping block to fix the cable inside the ejector pin base.

[0010] Preferably, the threaded clamp has teeth on one side of the contact surface between the threaded clamp and the stretching substrate, and the groove in the middle of the stretching substrate has teeth on the side away from the fixed guide shaft.

[0011] Preferably, the stretching matrix and the threaded clamping block cooperate to clamp the cable.

[0012] Preferably, the ejector pin base is provided with a V-shaped guide rail, the bottom of which is circular, and the diameter of the circular part corresponds to different types of cables.

[0013] Preferably, the ejector pin base is provided with a fixing groove, and the two sides of the clamping block are provided with protrusions, and the clamping block is connected to the ejector pin base through the protrusions.

[0014] Preferably, the fixing groove is provided with a screw hole, the clamping block is provided with a screw hole, and the fixing groove and the clamping block can be reinforced by bolts.

[0015] The beneficial effects of this utility model are:

[0016] (1) According to this utility model, the clamp includes a tensioning component and a fixing component. The tensioning component can clamp the entire cable, and the fixing component can clamp the inner core of the cable. The tensile testing machine is connected to the tensioning component and the fixing component respectively. Pulling the tensioning component and the fixing component, they move in opposite directions to peel the cable.

[0017] (2) In this utility model, a groove is provided in the middle of the stretching base in the stretching assembly, and a tooth is provided on one side of the groove. A threaded clamping block is provided inside the stretching base, and a tooth is provided at one end of the threaded clamping block. The stretching base and the threaded clamping block can clamp the cable through tooth engagement to prevent the cable from shifting in the stretching assembly.

[0018] (3) In this utility model, a V-shaped guide rail is provided inside the ejector pin base in the fixing assembly. The bottom of the V-shaped guide rail is circular, and there are multiple ejector pin bases. The diameter of the circular bottom of the V-shaped guide rail of each ejector pin base is different, corresponding to cables of different diameters. A clamping block is provided on the top of the ejector pin base. The clamping block is fixed to the ejector pin base by a fixing groove, and a bolt is provided in the fixing groove for connection. A hole is provided in the middle of the clamping block, and a spherical fixing ejector pin can be set in the middle of the clamp. The ejector pin contacts the inner core of the cable set in the circle at the bottom of the V-shaped guide rail of the ejector pin base by bolts, ensuring that the inner core of the cable is fixed on the fixing assembly. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the tensioning component of this utility model.

[0021] Figure 3 This is an exploded front view of the fixing component of this utility model.

[0022] Figure 4 This is an exploded rear view of the fixing component of this utility model.

[0023] In the figure: 1-Tension assembly, 11-Tension base, 12-Rotating handle, 13-Fixed guide shaft, 14-Threaded clamp, 2-Fixed assembly, 21-Spherical fixing pin, 22-Clamping block, 23-Pin base, 24-Fixed bolt. Detailed Implementation

[0024] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Example 1

[0026] like Figures 1-4 As shown, a fixture for testing cable peel force includes a clamp capable of holding a cable for testing. When conducting a peel force test on a cable, it is necessary to fix the cable's insulation layer and the cable core separately. Using a clamp to fix the cable core can reduce errors, improve the stability of the experiment, and avoid deviations in the experimental results. In this embodiment, the fixture includes a tension component 1 and a fixing component 2. The tension component 1 can fix the cable's insulation layer, and the fixing component 2 can fix the cable's inner core.

[0027] Reference Figure 2 The tensioning assembly 1 includes a tensioning base 11, a rotating handle 12, a fixed guide shaft 13, and a threaded clamp 14. In this embodiment, the tensioning base 11 is a cuboid with a groove in the middle. A connecting post is provided on the side of the tensioning base 11 away from the groove, and a hole for connecting to a tensile testing machine is provided in the connecting post. The tensile testing machine can pass through the hole in the tensioning base 11, fixing the tensioning base 11 to one end of the tensile testing machine.

[0028] The tension base 11 has a groove on one side with a hole for accommodating the fixed guide shaft 13. The groove of the tension base 11 can accommodate the threaded clamping block 14. One end of the fixed guide shaft 13 is connected to the threaded clamping block 14, and the other end passes through the hole in the groove of the tension base 11. The fixed guide shaft 13 is divided into two parts: one part is connected and fixed to the threaded clamping block 14, and the other part is connected and fixed to the hole on the tension base 14. The two parts of the fixed guide shaft 13 are connected by a bearing, and the two parts can rotate freely without affecting their position. The top of the fixed guide shaft 13, which is connected and fixed to the threaded clamping block 14, is provided with an auxiliary mounting hole. By using a screw to pass through the mounting hole, the bottom of the fixed guide shaft 13 can be fixed to the top of the threaded clamping block 14 to prevent the threaded clamping block 14 from loosening. The hole in the tension base 11 that accommodates the fixed guide shaft 13 is provided with threads, and the fixed guide shaft 13 can be adjusted in position on the tension base 11 by accommodating the fixed guide shaft 13.

[0029] The threaded clamp 14 has teeth on one side, and the teeth are wavy. The groove of the tension base 11, which contacts the threaded clamp 14, also has the same teeth as the threaded clamp 14. The threaded clamp 14 and the tension base 11 clamp the cable by engaging with each other through the teeth on the threaded clamp 14 and the tension base 11. In this embodiment, the tension base 11 has teeth on the side away from the fixed guide shaft 13, and the threaded clamp 14 also has teeth on the side away from the fixed guide shaft 13.

[0030] A rotating handle 12 is positioned at the top of the fixed guide shaft 13, away from the threaded clamp 14. The rotating handle 12 controls the position of the fixed guide shaft 13 within the groove of the tensioning base 11. By manipulating the rotating handle 12, the position of the threaded clamp 14 within the groove of the tensioning base 11 can be moved. The rotating handle 12 is fixed to the fixed guide shaft 13 by welding. The cable is positioned on the toothed side of the tensioning base 11, with the other side contacting the toothed threaded clamp 14. By adjusting the pressure between the threaded clamp 14 and the tensioning base, the cable is ensured to be clamped within the tensioning assembly 1.

[0031] The fixing component 2 includes a ball fixing pin 21, a clamping block 22, a pin base 23, and a fixing bolt 24. The clamping block 22 is fixed on the top of the pin base 23. The clamping block 22 has a hole at the center to accommodate the ball fixing pin 21. The ball fixing pin 21 can cooperate with the hole at the center of the clamping block 22 to fix the cable in the pin base.

[0032] Reference Figure 3-4The fixing component 2 has a square-shaped ejector base 23. A connecting post for connection to a tensile testing machine is located on the back of the ejector base 23. The connecting post has holes, and the tensile testing machine uses bearings passing through the connecting post to fix the fixing component 2 to the machine. A V-shaped guide rail is located on the front side of the ejector base 23. The bottom of the V-shaped guide rail is circular, and the diameter of the circular portion corresponds to different cable sizes. The bottom of the V-shaped guide rail can accommodate the cable. The V-shaped guide rail extends inward but does not pass through the ejector base 23. A fixing groove is located above the V-shaped guide rail extending inward for fixing the clamping block 22.

[0033] In this embodiment, the clamping block 22 is elongated, with protrusions on both sides. The fixing groove of the ejector base 23 has the same shape as the clamping block 22. A screw hole is provided on one side near the clamping block 22, and a screw hole is also provided on one side of the ejector base 23. The fixing bolt 24 can pass through the screw hole of the clamping block 22 and be fixed into the screw hole of the fixing groove of the ejector base 23. This prevents the clamping block 22 and the fixing base 23 from shifting during the stretching process, which would weaken the fixing effect of the fixing component 2.

[0034] A hole for accommodating the ball-fixing ejector pin 21 is provided in the middle of the clamping block 22. The hole is threaded. The bottom of the ball-fixing ejector pin 21 is semi-circular, the middle is threaded, and the top is a hexagonal platform. The ball-fixing ejector pin 21 is rotated and assembled into the clamping block 22. The ball-fixing ejector pin 21 can extend downward to the V-shaped platform base of the ejector pin base 23.

[0035] The bottom of the ball-shaped fixing pin 21 is semi-circular, a structure more suitable for cable contact and providing greater clamping force. This prevents cable misalignment during testing, thus avoiding significant errors.

[0036] When placing the cable inside the fixing assembly 2, the cable needs to be placed at the bottom of the V-shaped guide rail of the ejector base 23. By rotating the ball fixing ejector 21, the ball fixing ejector 21 is controlled to move downward, so that the bottom of the ball fixing ejector 21 presses the cable tightly to prevent the cable from loosening.

[0037] Installation method of the clamp used for cable stripping force testing:

[0038] 1. Assemble the tensioning assembly 1: Place the threaded clamp 14 in the groove of the tensioning base 11, with the toothed side of the threaded clamp 14 contacting the toothed side of the tensioning base 11. Fix the fixed guide shaft 13 to the hole in the middle of the groove of the tensioning base 11. Rotate the handle 12 to the outside of the fixed guide shaft 13.

[0039] 2. Assemble the fixing component 2: Set the clamping block 22 on the top of the ejector base 23 with the fixing bolt 24, and set the ball fixing ejector 21 in the middle of the clamping block 22.

[0040] 3. Fix the stretching component 1 and the fixing component 2 onto the press respectively.

[0041] 4. Process the cable by stripping the insulation layer from one end of the cable and fixing the end with the insulation layer still attached to the tensioning assembly 1. The cable is then pressed into the tensioning assembly 1 by the engagement between the teeth of the tensioning base 11 and the threaded pressure block 14.

[0042] 5. Fix one end of the cable with the insulation layer removed inside the fixing assembly 2, and fix the cable in the guide rail of the pin base 23 by rotating the ball fixing pin 21. The inner core of the cable is in contact with the insulation layer.

[0043] 6. Start the tensile testing machine and control it to stretch the load towards both ends 2. Record the pulling data of the tensile testing machine.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A clamp for testing cable peel force, comprising: The clamp is capable of holding the cable. Its features are: The clamp includes a tensioning component and a fixing component. The tensioning component includes a tensioning base, a rotating handle, a fixing guide shaft, and a threaded clamping block. The fixing component includes a ball-shaped fixing pin, a clamping block, and a pin base. The tensile matrix has a groove in the middle, the fixed guide shaft is threaded through the groove, the rotating handle is fixed to one side of the fixed guide shaft, and the threaded clamp is disposed in the groove and connected to the fixed guide shaft. The clamping block is fixed on the ejector pin base. The clamping block has a hole at its center to accommodate the ball-shaped ejector pin. The ball-shaped ejector pin can cooperate with the clamping block to fix the cable inside the ejector pin base.

2. The clamp for cable peel force testing according to claim 1, characterized in that: The threaded clamp has teeth on one side of the contact surface between it and the tensioning substrate, and the groove in the middle of the tensioning substrate has teeth on the side away from the fixed guide shaft.

3. A clamp for detecting cable peel force according to claim 2, characterized in that: The tensioning matrix and the threaded clamping block cooperate to hold the cable.

4. A clamp for detecting cable peel force according to claim 1, characterized in that: The base of the ejector pin is equipped with a V-shaped guide rail. The bottom of the V-shaped guide rail is circular, and the diameter of the circular part corresponds to different types of cables.

5. A clamp for detecting cable peel force according to claim 1, characterized in that: The ejector pin base is provided with a fixing groove, and the clamping block has protrusions on both sides of its edges. The clamping block is connected to the ejector pin base through the protrusions.

6. A clamp for detecting cable peel force according to claim 5, characterized in that: The fixing groove has a screw hole inside, and the clamping block has a screw hole inside. The fixing groove and the clamping block can be reinforced with bolts.

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