Teflon electronic wire tensile strength testing device

Abstract

The utility model relates to the technical field of teflon electronic wire testing, in particular to a teflon electronic wire tensile strength testing device which comprises a support, two groups of upper fixing blocks arranged in the support and lower fixing blocks correspondingly arranged below the two groups of upper fixing blocks. The two ends of an electronic wire sample are positioned through the elastic effect of the elastic rubber pad, then the two upper fixing blocks are driven by the driving assembly to clamp and fix the two ends of the electronic wire sample, the driving assembly can drive the two upper fixing blocks to move, the lower fixing block and the sliding block can be driven by the guide rod to move, and therefore the tensile strength test is conducted. Compared with the prior art, the device has the advantages that the operation process is simplified, the testing efficiency is improved, the two ends of the electronic wire can bear uniform clamping force, the test data deviation caused by non-uniform clamping force is avoided, the obtained tensile strength data can more truly reflect the performance of the Teflon electronic wire, and the accuracy of product quality evaluation is improved.

Description

Technical Field

[0001] This utility model relates to the field of Teflon electronic wire testing technology, specifically to a device for testing the tensile strength of Teflon electronic wires. Background Technology

[0002] Teflon electronic wire is an electronic wire with polytetrafluoroethylene (PTFE) as insulation material. It has characteristics such as high temperature resistance, chemical corrosion resistance, and low dielectric constant. To ensure that it can withstand tensile force without breaking or being damaged in actual use, and to ensure the stability and reliability of the circuit, a special tensile testing device is usually used. The two ends of the Teflon electronic wire sample are fixed to the clamps of the device. The tensioning device is driven by a motor, and the clamps pull the electronic wire sample to apply tension. At the same time, the magnitude of the tension and the elongation of the electronic wire are measured by sensors until the electronic wire breaks, and its tensile strength data is obtained. However, when using clamps to hold and fix the two ends of the electronic wire sample separately, one end of the electronic wire sample must be clamped and fixed first before the other end can be clamped. The operation is relatively inconvenient, and clamping the two ends separately makes it difficult to ensure that the clamping force is consistent. If the clamping force is different, the force on the electronic wire during the stretching process will be uneven, resulting in inaccurate test data that cannot truly reflect the tensile strength of the Teflon electronic wire, thus affecting the accurate assessment of product quality.

[0003] In view of this, we propose a device for testing the tensile strength of Teflon electronic wires. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, this utility model provides a Teflon electronic wire tensile strength testing device, which effectively solves the problems of existing technologies requiring clamping and fixing one end of the electronic wire sample before clamping and fixing the other end, which is inconvenient to operate and makes it difficult to ensure that the clamping force at both ends is consistent, resulting in uneven force distribution and affecting the accuracy of testing and product quality assessment.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides a device for testing the tensile strength of Teflon electronic wires, including a bracket, two sets of upper fixing blocks disposed inside the bracket, and lower fixing blocks disposed below the two sets of upper fixing blocks respectively. A slider is fixedly connected to the bottom of the two sets of lower fixing blocks, and an elastic rubber pad is fixedly connected to the inner wall of the two sets of upper fixing blocks, the two sets of lower fixing blocks, and the two sets of sliders.

[0007] Both sets of upper fixing blocks are fixedly connected to the bottom of guide rods, and both sets of lower fixing blocks have positioning holes that slide with the guide rods on their surfaces.

[0008] It also includes two sets of drive components set inside the upper fixed blocks.

[0009] Furthermore, the drive assembly includes two sets of bidirectional lead screws threaded to the inner wall of the upper fixed block, one end of the bidirectional lead screw is rotatably connected to the fixed frame, and the other end of the bidirectional lead screw rotates through the fixed frame.

[0010] Furthermore, a second motor is fixedly connected to one end of the fixed frame, and the second motor is fixedly connected to the end of the bidirectional lead screw passing through the fixed frame via an output shaft.

[0011] Furthermore, a threaded sleeve is fixedly connected to one side of the fixed frame, and a one-way screw is threadedly connected to the inner wall of the threaded sleeve. The bottom of the one-way screw is rotatably connected to the bottom of the inner cavity of the bracket, and the top of the one-way screw rotates through the bracket.

[0012] Furthermore, a motor is fixedly connected to the top of the bracket, and the motor is fixedly connected to the top of the one-way lead screw via an output shaft.

[0013] Furthermore, the bottom of the inner cavity of the bracket is fixedly connected to a guide rail 1 that slides with two sets of sliders, and the side wall of the inner cavity of the bracket is fixedly connected to two sets of guide rails 2 that slide with the fixed frame.

[0014] The technical solution provided by this utility model has the following advantages compared with the known public technology:

[0015] This invention utilizes elastic rubber pads within two sets of lower fixing blocks and sliders. The elasticity of these pads allows for initial simple positioning of both ends of the electronic wire sample. Then, a drive assembly moves the two sets of upper fixing blocks synchronously, simultaneously clamping and fixing both ends of the electronic wire sample without requiring separate clamping steps. The drive assembly moves the two sets of upper fixing blocks, and a guide rod moves the lower fixing blocks and sliders, enabling tensile strength testing of the clamped electronic wire sample. This simplifies the operation process, improves testing efficiency, and ensures uniform clamping force on both ends of the electronic wire, guaranteeing even stress during stretching and avoiding data deviations caused by uneven clamping force. This results in tensile strength data that more accurately reflects the performance of the Teflon electronic wire, improving the accuracy of product quality assessment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a first-view structural diagram of the present invention;

[0018] Figure 2 This is a partial structural diagram of the threaded sleeve, one-way lead screw, and related components of this utility model;

[0019] Figure 3 This is a schematic diagram of the disassembly structure of the upper and lower fixing blocks of this utility model.

[0020] The labels in the diagram represent: 1. Bracket; 2. Motor 1; 3. One-way lead screw; 4. Fixing bracket; 5. Motor 2; 6. Two-way lead screw; 7. Upper fixing block; 8. Lower fixing block; 9. Slider; 10. Guide rail 1; 11. Guide rail 2; 12. Threaded sleeve; 13. Guide rod; 14. Positioning hole; 15. Elastic rubber pad. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. 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.

[0022] The present invention will be further described below with reference to the embodiments.

[0023] A device for testing the tensile strength of Teflon electronic wires includes a bracket 1, two sets of upper fixing blocks 7 disposed inside the bracket 1, and lower fixing blocks 8 correspondingly disposed below the two sets of upper fixing blocks 7. A slider 9 is fixedly connected to the bottom of each of the two sets of lower fixing blocks 8. An elastic rubber pad 15 is fixedly connected to the inner wall of each of the two sets of upper fixing blocks 7, the two sets of lower fixing blocks 8, and the two sets of sliders 9. A guide rod 13 is fixedly connected to the bottom of each of the two sets of upper fixing blocks 7. A positioning hole 14 that slides with the guide rod 13 is opened on the surface of each of the two sets of lower fixing blocks 8. The device also includes a driving component disposed inside the two sets of upper fixing blocks 7.

[0024] Specifically, when conducting the tensile strength test of Teflon electronic wire, the two ends of the Teflon electronic wire sample are first passed between the two sets of lower fixing blocks 8 and sliders 9 respectively. The elastic rubber pads 15 provided in the lower fixing blocks 8 and sliders 9 can be used to simply position the two ends of the electronic wire. Then, the driving component can drive the two sets of upper fixing blocks 7 to descend, thereby achieving synchronous clamping and fixing of the two ends of the electronic wire. In addition, the elastic rubber pads 15 can also improve the stability of clamping the electronic wire and avoid wear on the external rubber sleeve of the electronic wire, which would affect the tensile strength test.

[0025] Furthermore, when the two sets of upper fixing blocks 7 descend, the positioning holes 14 and guide rods 13 can be used to limit and guide the upper fixing blocks 7, so that the upper fixing blocks 7 can accurately clamp and fix the two ends of the electronic wire. After fixing, the driving component can be used to drive the two sets of upper fixing blocks 7 to move, and through the positioning holes 14 and guide rods 13, the two sets of lower fixing blocks 8 and sliders 9 can be driven to move synchronously to stretch the electronic wire sample and perform tensile strength testing.

[0026] Specifically, the drive assembly includes two sets of bidirectional lead screws 6 threaded to the inner wall of the upper fixed block 7. One end of the bidirectional lead screw 6 is rotatably connected to the fixed frame 4, and the other end of the bidirectional lead screw 6 rotates through the fixed frame 4. One end of the fixed frame 4 is fixedly connected to the second motor 5, and the second motor 5 is fixedly connected to the end of the bidirectional lead screw 6 that passes through the fixed frame 4 through the output shaft.

[0027] Furthermore, a threaded sleeve 12 is fixedly connected to one side of the fixed frame 4, and a one-way screw 3 is threadedly connected to the inner cavity side wall of the threaded sleeve 12. The bottom of the one-way screw 3 is rotatably connected to the bottom of the inner cavity of the bracket 1, and the top of the one-way screw 3 rotates through the bracket 1. A motor 2 is fixedly connected to the top of the bracket 1, and the motor 2 is fixedly connected to the top of the one-way screw 3 through the output shaft. A guide rail 10 that slides with two sets of sliders 9 is fixedly connected to the bottom of the inner cavity of the bracket 1, and two sets of guide rails 11 that slide with the fixed frame 4 are fixedly connected to the inner cavity side wall of the bracket 1.

[0028] Specifically, start motor 2, which drives the one-way screw 3 to rotate. Since the threaded sleeve 12 is threadedly connected to the one-way screw 3 and the fixed frame 4 is fixedly connected to the threaded sleeve 12, and the guide rail 11 guides the fixed frame 4, the fixed frame 4 will move up and down as the one-way screw 3 rotates. By controlling the rotation of motor 2, the height of the fixed frame 4 is adjusted, so that the upper fixed block 7 can move.

[0029] Furthermore, start motor 2 5, which drives the bidirectional lead screw 6 to rotate. The bidirectional lead screw 6 is threadedly connected to the upper fixed block 7, and the upper fixed blocks 7 will move closer or further apart under the action of the bidirectional lead screw 6.

[0030] The working principle of this invention is as follows: When conducting tensile strength testing on Teflon electronic wires, the two ends of the Teflon electronic wire sample are first passed between two sets of lower fixing blocks 8 and sliders 9, respectively. The elastic rubber pads 15 inside the lower fixing blocks 8 and sliders 9 provide simple positioning of the two ends of the electronic wire. Motor 2 is then started, driving the one-way lead screw 3 to rotate. Since the threaded sleeve 12 is threadedly connected to the one-way lead screw 3, and the fixing frame 4 is fixedly connected to the threaded sleeve 12, and the guide rail 11 guides the fixing frame 4, the fixing frame 4 moves up and down with the rotation of the one-way lead screw 3. By controlling the rotation of motor 2, the height of the fixing frame 4 is adjusted, causing the upper fixing block 7 to descend, cooperating with the lower fixing block 8 to clamp the two ends of the electronic wire, thereby achieving synchronous fixing of the two ends of the electronic wire. Furthermore, the elastic rubber pads 15 further enhance the stability of the electronic wire. The stability of the wire clamp also prevents wear on the external sheath of the electronic wire, which would affect the tensile strength test. Motor 5 is started, driving the bidirectional lead screw 6 to rotate. The bidirectional lead screw 6 is threadedly connected to the upper fixed block 7. The upper fixed blocks 7 move closer or further apart under the action of the bidirectional lead screw 6. Through the positioning hole 14 and guide rod 13, the two sets of lower fixed blocks 8 and sliders 9 can move synchronously to stretch the electronic wire sample and perform a tensile strength test. A tension sensor and a displacement sensor are installed on the stretching device. The tension sensor measures the magnitude of the tension force on the electronic wire during the stretching process, and the displacement sensor measures the elongation of the electronic wire. As the stretching progresses, the tension sensor and displacement sensor collect data in real time until the Teflon electronic wire breaks. The data from the tension sensor and displacement sensor at this point are recorded to obtain the tensile strength data of the Teflon electronic wire.

[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for testing the tensile strength of Teflon electronic wires, characterized in that, include: The bracket (1), and two sets of upper fixing blocks (7) set inside the bracket (1), and lower fixing blocks (8) correspondingly set below the two sets of upper fixing blocks (7), with sliders (9) fixedly connected to the bottom of the two sets of lower fixing blocks (8), and elastic rubber pads (15) fixedly connected to the inner walls of the two sets of upper fixing blocks (7), the two sets of lower fixing blocks (8) and the two sets of sliders (9); The bottom of both sets of upper fixing blocks (7) is fixedly connected with guide rods (13), and the surface of both sets of lower fixing blocks (8) is provided with positioning holes (14) that slide with the guide rods (13); It also includes two sets of drive components set inside the upper fixing blocks (7).

2. The device for testing the tensile strength of Teflon electronic wires according to claim 1, characterized in that, The drive assembly includes two sets of bidirectional lead screws (6) with threaded connections to the inner wall of the upper fixed block (7). One end of the bidirectional lead screw (6) is rotatably connected to the fixed frame (4), and the other end of the bidirectional lead screw (6) rotates through the fixed frame (4).

3. The device for testing the tensile strength of Teflon electronic wires according to claim 2, characterized in that, One end of the fixed frame (4) is fixedly connected to the second motor (5), and the second motor (5) is fixedly connected to the end of the bidirectional lead screw (6) that passes through the fixed frame (4) via the output shaft.

4. The device for testing the tensile strength of Teflon electronic wires according to claim 3, characterized in that, A threaded sleeve (12) is fixedly connected to one side of the fixed frame (4). A one-way screw (3) is threadedly connected to the inner wall of the threaded sleeve (12). The bottom of the one-way screw (3) is rotatably connected to the bottom of the inner cavity of the bracket (1), and the top of the one-way screw (3) rotates through the bracket (1).

5. The device for testing the tensile strength of Teflon electronic wires according to claim 4, characterized in that, A motor (2) is fixedly connected to the top of the bracket (1), and the motor (2) is fixedly connected to the top of the one-way lead screw (3) through the output shaft.

6. The device for testing the tensile strength of Teflon electronic wires according to claim 5, characterized in that, The bottom of the inner cavity of the bracket (1) is fixedly connected to a guide rail (10) that slides with two sets of sliders (9), and the side wall of the inner cavity of the bracket (1) is fixedly connected to two sets of guide rails (11) that slide with the fixed frame (4).

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