Wire tension tester

Abstract

The utility model discloses a wire tension tester in the field of tension testers, which comprises a testboard, a support is vertically fixed on the testboard, a slide block capable of moving up and down is arranged on one side of the support, and the slide block is connected with the support through a guide rail. A rotating motor is arranged at the top of the support, the output end of the rotating motor is connected with a rotating screw, the rotating screw penetrates through the middle of the sliding block to rotate, and an external thread body is arranged outside to drive the sliding block to move on the guide rail. One side of the sliding block is connected with an upper clamping assembly used for clamping one end of a wire, the upper clamping assembly is composed of an upper clamping bottom plate and an upper clamping panel, the panel is detachably attached and fixed to one side of the bottom plate, and an upper concave-convex face is arranged between the upper clamping bottom plate and the upper clamping panel. A lower clamping assembly is arranged below the upper clamping assembly and used for clamping the other end of the electric wire, the lower clamping assembly is similar in structure, a bottom plate of the lower clamping assembly is fixed to the testing table through a tension sensor, and a lower concave-convex face is arranged between the bottom plate and the testing table. The testing machine is simple in structure, meanwhile, the friction force between the clamping panel and the bottom plate is increased, and the electric wire is effectively prevented from sliding or falling off during stretching.

Description

Technical Field

[0001] This utility model relates to the technical field of tensile testing machines, specifically to a wire tensile testing machine. Background Technology

[0002] In the production, quality inspection, and related scientific research fields of wires and cables, testing the tensile strength of wires is a crucial task. Tensile strength directly affects the reliability and safety of wires in practical use; therefore, accurate and efficient testing of wire tensile strength is of paramount practical significance.

[0003] However, existing wire tensile testing machines typically have complex structures and operating procedures. Some testing machines may require manual intervention in multiple steps during the testing process, such as manually adjusting the clamping position and controlling the tensile speed. This not only increases the difficulty of operation but also easily leads to operational errors, affecting the accuracy and efficiency of the test.

[0004] Furthermore, most existing tensile testing machines employ simple clamping structures with limited friction between the clamping panel and the clamping base plate. When performing tensile tests on wires, as the tensile force gradually increases, the wire can easily slip or detach from the clamping device. Once the wire detaches, it not only leads to test failure but may also damage the testing machine or create a safety hazard. Utility Model Content

[0005] In order to overcome the shortcomings of existing technical solutions, this utility model provides a wire tensile testing machine, which can effectively solve the technical problems of cumbersome operation and easy wire detachment after clamping.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A wire tensile testing machine includes a testing platform with a vertically fixed support. A slider that can move up and down is provided on one side of the support and is connected to a guide rail on the support. A rotary motor is provided at the top of the support, and a rotary screw is connected to the output end of the rotary motor. The rotary screw rotates through the middle of the slider, and an external threaded body that drives the slider to move on the guide rail is provided on the outside of the rotary screw.

[0008] One side of the slider is connected to an upper clamping assembly for clamping one end of the wire. The upper clamping assembly consists of an upper clamping base plate and an upper clamping panel. The upper clamping base plate is fixedly connected to the slider and moves with the slider. The upper clamping panel is detachably attached to and fixed to one side of the upper clamping base plate, and a matching upper concave-convex surface is provided between the upper clamping base plate and the upper clamping panel.

[0009] Below the upper clamping assembly is a lower clamping assembly used to clamp the other end of the wire. The lower clamping assembly consists of a lower clamping base plate and a lower clamping panel. The lower clamping base plate is fixed to the test bench by a tension sensor. The lower clamping panel is detachably attached to and fixed to one side of the lower clamping base plate. Matching concave and convex surfaces are provided between the lower clamping base plate and the lower clamping panel.

[0010] Furthermore, the guide rails are provided in pairs, and the two guide rails are symmetrically distributed on both sides of the rotating screw.

[0011] Furthermore, the output end of the rotary motor is connected to the rotary screw via a sleeve, and both the output end of the rotary motor and the rotary screw are provided with a foolproof part connected to the sleeve.

[0012] Furthermore, the slider has a protrusion on the side away from the upper clamping assembly, and the protrusion has a threaded hole for inserting the rotating screw. The inner wall of the threaded hole is provided with an internal thread that matches the external thread.

[0013] Furthermore, both the upper clamping panel and the lower clamping panel are detachably connected to several locking components that are fixed to the corresponding clamping base plate.

[0014] Furthermore, a human-machine interface for controlling the rotating motor is provided on one side of the test bench.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The wire tensile testing machine provided by this utility model has a simple structure. Users only need to clamp and fix both ends of the wire to the upper clamping component and the lower clamping component. The operation is simple. At the same time, the upper clamping component and the lower clamping component are composed of a clamping base plate and a clamping panel that are fixed together. The mating surface has concave and convex surfaces, which greatly increases the friction between the clamping panel and the clamping base plate. This allows the clamping panel to be more firmly attached to the clamping base plate when clamping the wire, effectively preventing the wire from slipping or falling off due to insufficient friction during the stretching process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the upper part of the structure of an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the slider structure according to an embodiment of the present utility model;

[0020] Figure 4This is a schematic diagram of the upper clamping assembly, lower clamping assembly, and tension sensor structure of an embodiment of this utility model;

[0021] Figure 5 This is an embodiment of the present utility model. Figure 4 Enlarged schematic diagram of section A in the middle;

[0022] Numbering on the map:

[0023] 1-Testing platform, 2-Bracket, 3-Slider, 4-Guide rail, 5-Rotating motor, 6-Rotating screw, 7-Upper clamping assembly, 8-Lower clamping assembly, 9-Sleeve, 10-Locking component, 11-Tension sensor;

[0024] 101 - Human-Computer Interaction Interface;

[0025] 301 - Protrusion, 302 - Screw hole, 303 - Internal thread body;

[0026] 601 - External thread body;

[0027] 701 - Upper clamping base plate, 702 - Upper clamping panel, 703 - Upper concave-convex surface;

[0028] 801-Lower clamping base plate, 802-Lower clamping panel, 803-Lower concave-convex surface;

[0029] 901 - Error Prevention Department. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figure 1-5 As shown, this utility model provides a wire tensile testing machine. Through a unique upper and lower clamping component design, the machine can effectively clamp the wire, preventing it from falling off during testing and improving the accuracy and stability of the test. Furthermore, the machine also has the advantages of simple structure and convenient operation.

[0032] This wire tensile testing machine includes a test platform 1, on which a vertically fixed support 2 is mounted. A movable slider 3 is mounted on one side of the support 2, and the slider 3 is connected via guide rails 4 mounted on the support 2. Two guide rails 4 are provided, symmetrically distributed on both sides of a rotating screw 6. This design makes the slider 3 more stable during vertical movement, reducing wobbling and improving testing accuracy.

[0033] A rotating motor 5 is mounted on the top of the bracket 2, and a rotating screw 6 is connected to the output end of the rotating motor 5. The output end of the rotating motor 5 and the rotating screw 6 are connected via a sleeve 9. Both the output end of the rotating motor 5 and the rotating screw 6 are equipped with a foolproof part 901 connected to the sleeve 9. The foolproof part 901 prevents errors during the connection process, ensuring the accuracy and stability of the connection. The rotating screw 6 rotates through the middle of the slider 3, and an external threaded body 601 is provided on the outer side of the rotating screw 6 to drive the slider 3 to move on the guide rail 4.

[0034] A protrusion 301 is provided on one side of the slider 3. The protrusion 301 has a threaded hole 302 for inserting the rotating screw 6. The inner wall of the threaded hole 302 is provided with an internal thread body 303 that matches the external thread body 601. When the rotating motor 5 drives the rotating screw 6 to rotate, the external thread body 601 and the internal thread body 303 cooperate with each other, causing the slider 3 to move up and down along the guide rail 4, thereby driving the upper clamping assembly 7 to move up and down, realizing the tensile test of the wire.

[0035] A clamping assembly 7 for clamping one end of a wire is connected to one side of the slider 3. The upper clamping assembly 7 consists of an upper clamping base plate 701 and an upper clamping panel 702. The upper clamping base plate 701 is fixedly connected to the slider 3 and moves with the slider 3. The upper clamping panel 702 is detachably attached to and fixed to one side of the upper clamping base plate 701, and a matching upper concave-convex surface 703 is provided between the upper clamping base plate 701 and the upper clamping panel 702. The design of the upper concave-convex surface 703 can increase the friction between the upper clamping panel 702 and the upper clamping base plate 701, making the upper clamping panel 702 more secure when clamping the wire and less prone to loosening.

[0036] The upper clamping panel 702 is detachably connected to several locking components 10 that are fixed to the upper clamping base plate 701. The locking components 10 can be bolts, screws, etc. The locking components 10 can tightly fix the upper clamping panel 702 to the upper clamping base plate 701, further ensuring the stability of clamping.

[0037] Below the upper clamping assembly 7 is a lower clamping assembly 8 used in conjunction to clamp the other end of the wire. The lower clamping assembly 8 consists of a lower clamping base plate 801 and a lower clamping panel 802. The lower clamping base plate 801 is fixed to the test bench 1 by a tension sensor 11. The tension sensor 11 can monitor the clamping force of the lower clamping assembly 8 on the wire in real time. When the clamping force reaches the set value, the operation can be stopped in time to avoid damage to the wire due to excessive clamping force.

[0038] The lower clamping panel 802 is detachably attached and fixed to one side of the lower clamping base plate 801, and a matching concave-convex surface 803 is provided between the lower clamping base plate 801 and the lower clamping panel 802. The function of the concave-convex surface 803 is the same as that of the upper concave-convex surface 703, which can increase the friction between the lower clamping panel 802 and the lower clamping base plate 801, making the lower clamping panel 802 more secure when clamping wires.

[0039] The lower clamping panel 802 is also detachably connected to several locking members 10 that are fixed to the lower clamping base plate 801. The lower clamping panel 802 is fixed to the lower clamping base plate 801 by the locking members 10 to ensure the stability of clamping.

[0040] A human-machine interface 101 for controlling the rotating motor 5 is provided on one side of the test bench 1. The operator can set parameters such as the rotation speed, rotation direction, and rotation time of the rotating motor 5 through the human-machine interface 101, thereby controlling the up-and-down movement speed and distance of the slider 3 to achieve accurate testing of the tension of the wire.

[0041] In use, the two ends of the wire to be tested are placed and fixed between the upper clamping assembly 7 and the lower clamping assembly 8, respectively. The rotary motor 5 is started via the human-machine interface 101. The rotary motor 5 drives the rotary screw 6 to rotate, and the external thread body 601 and the internal thread body 303 cooperate to move the slider 3 upward along the guide rail 4. The upper clamping assembly 7 moves upward accordingly, applying tension to the wire. Simultaneously, the tension sensor 11 monitors the tension exerted on the wire by the lower clamping assembly 8 in real time and transmits the data to the human-machine interface 101. When the wire breaks or the set tension value is reached, the rotary motor 5 stops rotating, and the test ends.

[0042] Compared with traditional technologies, the wire tensile testing machine provided by this technical solution has a simple structure. Users only need to clamp and fix both ends of the wire onto the upper clamping component 7 and the lower clamping component 8. The operation is simple. At the same time, the upper clamping component 7 and the lower clamping component 8 are composed of a clamping base plate and a clamping panel that fit together and are fixed. The mating surface has concave and convex surfaces, which greatly increases the friction between the clamping panel and the clamping base plate. This allows the clamping panel to fit more firmly onto the clamping base plate when clamping the wire, effectively preventing the wire from slipping or falling off due to insufficient friction during the stretching process.

[0043] It should be noted that this wire tensile testing machine can be used not only to test electrical wires but also other types of wires. For example, it can be used to test the tensile properties of cables, wire ropes, and other wires. For wires of different diameters and materials, simply changing the appropriate upper and lower clamping panels and adjusting the clamping force parameters can meet the testing requirements of different wires.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wire tensile testing machine, comprising a testing table, wherein a vertically fixed support is provided on the testing table, characterized in that: A slider that can move up and down is provided on one side of the bracket, and the slider is connected by a guide rail provided on the bracket. A rotating motor is provided on the top of the bracket, and a rotating screw is connected to the output end of the rotating motor. The rotating screw rotates through the middle of the slider, and an external threaded body that drives the slider to move on the guide rail is provided on the outside of the rotating screw. One side of the slider is connected to an upper clamping assembly for clamping one end of the wire. The upper clamping assembly consists of an upper clamping base plate and an upper clamping panel. The upper clamping base plate is fixedly connected to the slider and moves with the slider. The upper clamping panel is detachably attached to and fixed to one side of the upper clamping base plate, and a matching upper concave-convex surface is provided between the upper clamping base plate and the upper clamping panel. Below the upper clamping assembly is a lower clamping assembly used to clamp the other end of the wire. The lower clamping assembly consists of a lower clamping base plate and a lower clamping panel. The lower clamping base plate is fixed to the test bench by a tension sensor. The lower clamping panel is detachably attached to and fixed to one side of the lower clamping base plate. Matching concave and convex surfaces are provided between the lower clamping base plate and the lower clamping panel.

2. The wire tensile testing machine according to claim 1, characterized in that: The guide rails are provided in two quantities, and the two guide rails are symmetrically distributed on both sides of the rotating screw.

3. The wire tensile testing machine according to claim 1, characterized in that: The output end of the rotary motor is connected to the rotary screw via a sleeve, and both the output end of the rotary motor and the rotary screw are provided with a foolproof part connected to the sleeve.

4. The wire tensile testing machine according to claim 1, characterized in that: The slider has a protrusion on the side away from the upper clamping assembly. The protrusion has a threaded hole for inserting and rotating screws. The inner wall of the threaded hole is provided with an internal thread that matches the external thread.

5. The wire tensile testing machine according to claim 1, characterized in that: Both the upper and lower clamping panels are detachably connected to several locking components that are fixed to the corresponding clamping base plates.

6. A wire tensile testing machine according to any one of claims 1-5, characterized in that: A human-machine interface for controlling the rotating motor is provided on one side of the test bench.

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