Wire vertical torsion testing machine with positioning structure

Abstract

The utility model relates to the technical field of wire testing, and discloses a wire vertical torsion testing machine with a positioning structure, which comprises a machine body, a servo motor is fixedly mounted on the inner wall of the machine body, a mounting disc is fixedly mounted at the output end of the servo motor, and a positioning cylinder is fixedly mounted on the upper surface of the mounting disc. And the inner wall of the top of the positioning cylinder is in threaded connection with a locking bolt, a clamping block is rotationally installed at the end of the locking bolt, and a positioning assembly is arranged in the positioning cylinder. Through the arrangement of the positioning assembly, when a test wire is installed, the wire passes through the space between the curved bar and the contact wheel, and when the wire is dragged upwards in the torsion test process, the wire drives the contact wheel to rotate and further drives the straight bar and the curved bar to rotate by taking the rotating bar as a rotating shaft, and the curved bar generates a tensile force in the horizontal direction on the wire, so that the wire is prevented from being damaged. The upward pulling trend of the wire is reduced, and the clamping stability of the wire and the accuracy of data in the testing process are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wire testing, in particular to an electric wire vertical torsion testing machine with a positioning structure. Background Art

[0002] As a necessary power supply material for electrical equipment, the service life and usage intensity of wires determine the safety of power transportation. Therefore, during the wire production process, the various performance properties of the wires need to be tested to detect whether they meet the qualified standards.

[0003] According to a disclosed robot cable vertical torsion testing machine (publication number: CN209525201U), in the above application, the cable is vertically arranged by an upper fixed clamp and a lower rotor clamp, and the lower rotor clamp is driven by a transmission assembly to perform repeated torsion tests on the test wire, which can stably and accurately test the anti-twisting performance of the robot cable.

[0004] However, in actual use of the above equipment, when the wire is fixed, the force-bearing part is only the arc-shaped opening between the wire and the clamp, and the contact area between the two is limited. It mainly relies on the tensile performance of the rubber on the surface of the wire. When the wire is subjected to torsion test, the wire is prone to slip when subjected to tension, thereby affecting the accuracy of the cable torsion test results. In view of this, we propose a wire vertical torsion testing machine with a positioning structure. Utility Model Content

[0005] The utility model aims to provide a wire vertical torsion testing machine with a positioning structure to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vertical torsion test machine for electric wires with a positioning structure, comprising a machine body, a servo motor is fixedly mounted on the inner wall of the machine body, a mounting plate is fixedly mounted on the output end of the servo motor, a positioning cylinder is fixedly mounted on the upper surface of the mounting plate, a locking bolt is threadedly connected to the top inner wall of the positioning cylinder, a clamping block is rotatably mounted on the end of the locking bolt, a guide rod is fixedly mounted on the top inner wall of the positioning cylinder, a positioning assembly is arranged inside the positioning cylinder, and the positioning assembly comprises:

[0007] A rotating rod, the inner wall of the positioning cylinder is rotatably mounted with a rotating rod, the rotating rod is penetrated by a contact wheel, and the contact wheel is fixedly connected to the rotating rod;

[0008] A round rod, the side wall of the contact wheel is rotatably mounted with a round rod, the end of the round rod is fixedly connected with a straight rod, and a volute spring is sleeved on the arc-shaped outer wall of the round rod;

[0009] A curved rod is rotatably mounted on the side wall of one end of the straight rod away from the round rod, and the curved rod is arranged in a "J" shape.

[0010] Preferably, a test cavity is opened on the inner wall of the machine body, and the number of the servo motors is set to two groups, and the two groups of servo motors are mirror-imaged and arranged on the upper and lower sides of the horizontal central axis of the test cavity, and the output shafts of the two groups of servo motors rotate in opposite directions, so that the mounting plates corresponding to the two groups of servo motors in the test cavity and the wires fixed on the positioning cylinders are twisted in opposite directions.

[0011] Preferably, the inner wall of the clamping block is provided with a socket whose diameter matches the outer diameter of the guide rod, and the guide rod is inserted into the socket to guide and limit the movement of the clamping block.

[0012] Preferably, the positioning assembly is arranged below the clamping block, and an inner groove is arranged on the arc-shaped outer wall of the contact wheel to facilitate the winding of the electric wire.

[0013] Preferably, a tensile assembly is provided on the side of the clamp block, the tensile assembly includes an arc groove, an arc groove is provided on the outer wall of the clamp block close to the center of the positioning tube, and an arc belt is provided on the arc inner wall of the arc groove.

[0014] Preferably, there are multiple groups of arc belts, and the multiple groups of arc belts are spirally arranged in the arc groove, and the wires are in the arc grooves corresponding to the two groups of clamps until the arc belts and the arc grooves achieve positioning and clamping of the wires.

[0015] Compared with the prior art, the utility model provides a wire vertical torsion testing machine with a positioning structure, which has the following beneficial effects:

[0016] 1. The vertical torsion test machine for electric wires with a positioning structure is provided with a positioning component. When the test wire is installed, the wire is passed through the curved rod and the contact wheel. When the wire is dragged upward during the torsion test, the wire drives the contact wheel to rotate, thereby driving the straight rod and the curved rod to rotate with the rotating rod as the rotation axis. The curved rod generates a horizontal pulling force on the wire to reduce the upward pulling tendency of the wire, thereby ensuring the clamping stability of the wire and the accuracy of the data during the test.

[0017] 2. The vertical torsion test machine for electric wires with a positioning structure has a spiral arc-shaped belt arranged in the arc-shaped groove on the side of the clamping block close to the center of the positioning cylinder, so that when the two groups of clamping blocks arranged on the inner wall of the top of the positioning cylinder are close to each other, the electric wire is in the arc-shaped grooves corresponding to the two groups of clamping blocks until the arc-shaped belt and the arc-shaped groove realize the positioning and clamping of the electric wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the positioning cylinder structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the positioning tube of the utility model;

[0022] Figure 5 This is a partial explosion diagram of the positioning component of the utility model.

[0023] In the figure: 1, machine body; 2, servo motor; 3, mounting plate; 4, positioning cylinder; 5, locking bolt; 6, clamping block; 7, guide rod; 8, positioning assembly; 81, rotating rod; 82, contact wheel; 83, round rod; 84, straight rod; 85, scroll spring; 86, curved rod; 9, tensile assembly; 91, arc groove; 92, arc belt. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: a wire vertical torsion testing machine with a positioning structure, including a body 1, a servo motor 2 is fixedly installed on the inner wall of the body 1, a mounting plate 3 is fixedly installed on the output end of the servo motor 2, a positioning cylinder 4 is fixedly installed on the upper surface of the mounting plate 3, a locking bolt 5 is threadedly connected to the top inner wall of the positioning cylinder 4, a clamping block 6 is rotatably installed on the end of the locking bolt 5, a guide rod 7 is fixedly installed on the top inner wall of the positioning cylinder 4, a positioning assembly 8 is arranged inside the positioning cylinder 4, and the positioning assembly 8 includes a rotating rod 81, a contact wheel 82, a round rod 83, a straight rod 84, a volute spring 85 and a curved rod 86.

[0025] In one embodiment of the utility model, a rotating rod 81 is rotatably installed on the inner wall of the positioning cylinder 4, a contact wheel 82 passes through the rotating rod 81, and the contact wheel 82 is fixedly connected to the rotating rod 81, a round rod 83 is rotatably installed on the side wall of the contact wheel 82, a straight rod 84 is fixedly connected to the end of the round rod 83, a volute spring 85 is sleeved on the arc-shaped outer wall of the round rod 83, and a curved rod 86 is rotatably installed on the side wall of the straight rod 84 away from the round rod 83.

[0026] Furthermore, a control panel is provided on the outer wall of the machine body 1, and the servo motor 2 is electrically connected to the control panel, so that the staff can control the start and stop of the servo motor 2 by operating the control panel to complete the vertical torsion test of the wire. At the same time, a test cavity is provided on the inner wall of the machine body 1, and the number of servo motors 2 is set in two groups, and the two groups of servo motors 2 are mirror-imaged on the upper and lower sides of the horizontal central axis of the test cavity. Specifically, the output shafts of the two groups of servo motors 2 rotate in opposite directions, so that the electric motors fixed on the mounting plate 3 and the positioning cylinder 4 corresponding to the two groups of servo motors 2 in the test cavity The wire is twisted in opposite directions, thereby completing the vertical twisting test of the wire. Furthermore, there are two groups of locking bolts 5, and the two groups of locking bolts 5 are mirror-imaged on the left and right sides of the vertical central axis of the positioning cylinder 4, and the clamping block 6 is kept parallel to the mounting plate 3. Specifically, the inner wall of the clamping block 6 is provided with a socket with a diameter matching the outer diameter of the guide rod 7, and the guide rod 7 is inserted into the socket to guide and limit the movement of the clamping block 6. Specifically, when the locking bolt 5 is rotated, it is affected by the guide rod 7 so that the clamping block 6 will move in the horizontal direction toward the center of the positioning cylinder 4.

[0027] At the same time, an electrical connection point is arranged on the outer wall of one side of the mounting plate 3 close to the positioning tube 4, so that the terminal of the wire can be installed with the electrical connection point during testing, so that the current flowability between the wire and the electrical connection point can be tested to test various performance data such as the ultimate tensile value of the vertical torsion of the wire.

[0028] In addition, the positioning assembly 8 is arranged below the clamping block 6, and at the same time, an inner groove is arranged on the arc-shaped outer wall of the contact wheel 82 to facilitate the winding of the wire, so as to prevent the wire wound on the arc-shaped outer wall of the contact wheel 82 from slipping laterally when the mounting plate 3 rotates, thereby affecting the straightening effect of the wire and the torsion test result of the wire. Specifically, a circular hole with a diameter larger than the outer diameter of the spiral spring 85 is opened on the side wall of the contact wheel 82, and the two ends of the spiral spring 85 are respectively fixedly connected to the bottom inner wall of the circular hole and the arc-shaped outer wall of the round rod 83, so that the round rod 83 During rotation, due to the elastic force of the spiral spring 85, the round rod 83 and the straight rod 84 always have a tendency to rotate in the opposite direction to achieve reset. Furthermore, there are two groups of round rods 83 and straight rods 84, and the two groups of round rods 83 and straight rods 84 are mirror-imaged on the left and right outer walls of the contact wheel 82 to ensure the stability of the movement of the curved rod 86. Specifically, an arc-shaped edge is provided at the center of the curved rod 86, and the curved rod 86 is provided in a "J" shape to ensure that when the wire is between the curved rod 86 and the contact wheel 82, there will be no excessive lateral displacement, which will cause the wire to slip.

[0029] In an embodiment of the utility model, a tensile component 9 is provided on the side of the clamping block 6, and the tensile component 9 includes an arc groove 91. An arc groove 91 is provided on the outer wall of the clamping block 6 on the side close to the center of the positioning tube 4, and an arc belt 92 is provided on the arc inner wall of the arc groove 91. Specifically, the inner diameter of the arc groove 91 is adapted to the inner diameter of the inner groove provided on the arc outer wall of the contact wheel 82, so as to adapt to the clamping and positioning work of the wire. At the same time, the number of arc belts 92 is provided in multiple groups, and the multiple groups of arc belts 92 are spirally arranged in the arc groove 91, so that when the two groups of clamping blocks 6 provided on the inner wall at the top of the positioning tube 4 are close to each other, the wire is in the arc groove 91 corresponding to the two groups of clamping blocks 6 until the arc belt 92 and the arc groove 91 realize the positioning and clamping work of the wire.

[0030] In the utility model, when in use, one end of the wire to be tested is inserted into the top of the positioning cylinder 4, so that it passes through the arc groove 91 between the two groups of clamping blocks 6, and then passes through the gap between the bent rod 86 and the contact wheel 82, and is attached to the inner groove on the arc-shaped outer wall of the contact wheel 82 and connected to the electrical connection point on the mounting disk 3, and then the locking bolt 5 is rotated to cooperate with the clamping block 6 and the arc groove 91 to fix and clamp the wire. After completing the fixation and clamping of both ends of the wire, the staff starts the servo motor 2 through the controller to drive the mounting disk 3 to rotate, thereby driving the positioned wire to twist, and the vertical torsion performance and other data of the wire to be tested are tested through the current passability of the electrical connection point on the mounting disk 3 connected to the wire.

[0031] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A wire vertical torsion testing machine with a positioning structure, comprising a machine body (1), a servo motor (2) is fixedly mounted on the inner wall of the machine body (1), a mounting plate (3) is fixedly mounted on the output end of the servo motor (2), a positioning cylinder (4) is fixedly mounted on the upper surface of the mounting plate (3), a locking bolt (5) is threadedly connected to the top inner wall of the positioning cylinder (4), a clamping block (6) is rotatably mounted on the end of the locking bolt (5), and a guide rod (7) is fixedly mounted on the top inner wall of the positioning cylinder (4), characterized in that: A positioning assembly (8) is arranged inside the positioning cylinder (4), and the positioning assembly (8) comprises: A rotating rod (81), the inner wall of the positioning cylinder (4) is rotatably mounted with the rotating rod (81), the rotating rod (81) is penetrated by a contact wheel (82), and the contact wheel (82) is fixedly connected to the rotating rod (81); A round rod (83), the side wall of the contact wheel (82) is rotatably mounted with the round rod (83), the end of the round rod (83) is fixedly connected with a straight rod (84), and a volute spring (85) is sleeved on the arc-shaped outer wall of the round rod (83); A curved rod (86) is rotatably mounted on a side wall of one end of the straight rod (84) away from the round rod (83), and the curved rod (86) is arranged in a "J" shape.

2. The vertical torsion tester for electric wires with a positioning structure according to claim 1, characterized in that: A test cavity is provided on the inner wall of the machine body (1), and two groups of servo motors (2) are provided. The two groups of servo motors (2) are mirror-imaged and arranged on the upper and lower sides of the horizontal central axis of the test cavity, and the output shafts of the two groups of servo motors (2) rotate in opposite directions.

3. The wire vertical torsion testing machine with a positioning structure according to claim 1, characterized in that: The inner wall of the clamping block (6) is provided with an insertion hole whose diameter matches the outer diameter of the guide rod (7), and the guide rod (7) is inserted into the insertion hole.

4. The vertical torsion tester for electric wires with a positioning structure according to claim 1, characterized in that: The positioning assembly (8) is arranged below the clamping block (6), and an inner groove is arranged on the arc-shaped outer wall of the contact wheel (82).

5. The vertical torsion tester for electric wires with a positioning structure according to claim 1, characterized in that: A tensile component (9) is provided on the side of the clamping block (6), and the tensile component (9) includes an arc-shaped groove (91). The outer wall of the clamping block (6) close to the center of the positioning tube (4) is provided with an arc-shaped groove (91), and an arc-shaped belt (92) is provided on the arc-shaped inner wall of the arc-shaped groove (91).

6. The vertical torsion test machine for electric wires with a positioning structure according to claim 5, characterized in that: The arc-shaped belts (92) are provided in a plurality of groups, and the plurality of groups of arc-shaped belts (92) are arranged in a spiral shape in the arc-shaped groove (91).

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