High and low temperature type wire bending and twisting testing machine

Abstract

The utility model discloses a high and low temperature type wire bending and twisting testing machine, relates to the technical field of wire bending and twisting testing machines, and aims to solve the technical problem that continuous stress is generated at a bending and twisting position due to the fact that a wire is easily shaken due to shaking of a weight in the bending and twisting testing process of a current traditional testing machine. Comprising a testing machine body internally provided with an experiment bin, a shaft seat is detachably installed on one side of the inner wall of the experiment bin, a wire body is arranged in the experiment bin, a driving shaft is rotatably installed in the shaft seat, and an experiment assembly is detachably installed at one end of the driving shaft; the experiment assembly comprises a clamp assembly used for clamping and fixing a wire body, support assemblies used for positioning one end of the wire body in the vertical direction are detachably installed on the two sides of the shaft seat, and a limiting assembly is detachably installed on one side of the inner wall of the experiment bin. And the limiting assembly comprises a mounting plate of which one side is symmetrically and rotatably provided with guide wheels. The device has the advantage of guaranteeing the accuracy of the bending and twisting experiment of the wire body.

Description

Technical Field

[0001] The utility model relates to the technical field of wire bending and torsion testing machines, and more specifically, to a high and low temperature type wire bending and torsion testing machine. Background Technique

[0002] The wire bending and torsion experiment is a test method to evaluate the mechanical properties and durability of wire and cable by simulating the bending and torsion stresses that may be encountered during the actual use of wire and cable. This test helps to ensure that the wire and cable can maintain stable performance under normal use conditions and avoid damage or failure caused by bending or torsion. A special bending and torsion testing machine is usually required to conduct the wire bending and torsion experiment.

[0003] Currently, when using a wire bending and torsion testing machine to conduct a wire bending and torsion experiment, weights need to be connected to the bottom of the wire for counterweight, and a weight guiding fixture needs to be set up to limit the sway of the weights during the bending and torsion experiment. The traditional guiding fixture only limits the sway of the weights by symmetrically arranging guiding wheels and passing the wire through and abutting against the guiding wheels. However, since the position where the weights are connected is usually far from the experimental position during the wire bending and torsion experiment, the force cannot be transmitted in a straight line in the axial direction during the transmission process, and the weights can still swing slightly in the axial direction of the guiding wheels. Although this swing is slight, it will generate a continuous stress effect at the clamping position of the wire during the multiple bending and torsion processes of the wire, thus interfering with the accuracy of the wire bending and torsion experiment. In view of this, we propose a high and low temperature type wire bending and torsion testing machine. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, adapt to the actual needs, and provide a high and low temperature type wire bending and torsion testing machine to solve the technical problem that the traditional testing machine in the current bending and torsion experiment is prone to drive the wire to swing due to the sway of the weights, and then generate continuous stress at the bending and torsion position.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A high and low temperature type wire bending and torsion testing machine, including a testing machine body with an experimental chamber formed inside.

[0006] One side of the inner wall of the experimental chamber is detachably installed with a shaft seat, and a wire body is arranged in the experimental chamber. A driving shaft is rotatably installed in the shaft seat, and an experimental component is detachably installed at one end of the driving shaft. The experimental component includes a fixture component for clamping and fixing the wire body.

[0007] On both sides of the shaft seat, a bracket component for positioning one end of the wire body in the vertical direction is detachably installed, and a limiting component is detachably installed on one side of the inner wall of the experimental chamber.

[0008] The limiting component includes a mounting plate with guide wheels rotatably installed symmetrically on one side. An annular groove for positioning the other end of the wire body in the vertical direction is formed on the outer edge surface of the guide wheel. The outer surface of the wire body abuts against the annular groove, and the symmetrically arranged annular grooves are inclined upward and downward respectively.

[0009] By designing the guide wheel and the annular groove, and through the abutment of the wire body against the annular groove and in cooperation with the bracket assembly, the positioning effect of both ends of the wire body can be achieved, so that the end of the wire body close to the fixture assembly maintains a vertical posture during movement, which is beneficial to reducing the continuous stress generated at the bending position of the wire body due to the end swing during the bending and torsion experiment of the wire body, and is beneficial to ensuring the accuracy of the bending and torsion experiment of the wire body.

[0010] Preferably, connecting rods are symmetrically arranged on the surface of the mounting plate away from the guide wheel, and the ends of the connecting rods away from the mounting plate are connected to the inner wall of the test chamber.

[0011] Preferably, the fixture assembly includes a fixture base with a retaining disc detachably installed at one end, a clamping plate detachably installed on one side of the fixture base. A V-shaped clamping groove is formed in the middle of the surface of the clamping plate facing the fixture base, and the outer surface of the wire body abuts against the fixture base and the V-shaped clamping groove.

[0012] Preferably, the bracket assembly includes a bottom plate with bracket arms symmetrically arranged at both ends of the upper surface. The ends of the bracket arms away from the bottom plate are detachably connected to the shaft seat. A through hole is formed inside the bottom plate, and a positioning disc is detachably installed in the through hole. A positioning hole for the wire body to pass through is formed in the positioning disc.

[0013] Preferably, a counterweight assembly is fixedly arranged at the bottom of the mounting plate. The counterweight assembly includes a hanging bracket fixedly connected to the bottom of the mounting plate. A U-shaped plate is formed on one side of the hanging bracket. A C-shaped card slot for the wire body to be inserted is formed in the middle of the end of the U-shaped plate away from the hanging bracket. And a knob is rotatably installed on one side of the U-shaped plate. One end of the knob is provided with a threaded rod that can be screwed into the C-shaped card slot for clamping and fixing the wire body. A hanging rod is hung in the hanging bracket, and a weight is detachably installed at the bottom end of the hanging rod.

[0014] Preferably, a temperature control screen and an experiment operation screen are arranged on one side of the testing machine body, and a door panel for closing the test chamber is movably arranged on one side of the testing machine body. A rotating disc is rotatably installed at the bottom of the inner wall of the test chamber.

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

[0016] 1. The utility model realizes the positioning effect on both ends of the wire body by designing a guide wheel and an annular groove, through the abutment of the wire body and the annular groove, and in cooperation with the bracket assembly, so that the end of the wire body close to the fixture assembly maintains a vertical posture during movement, which is beneficial to reducing the continuous stress generated at the bending position of the wire body due to the end swing during the bending and torsion experiment of the wire body, and is beneficial to ensuring the accuracy of the bending and torsion experiment of the wire body, and solves the problem that the traditional testing machine is prone to drive the wire to shake due to the shaking of the weight during the bending and torsion experiment, and further generates continuous stress at the bending and torsion position.

[0017] 2. The utility model also designs the symmetrically arranged annular grooves to be inclined upward and downward respectively. The inclined arrangement of the annular grooves can generate a certain thrust effect on the wire body towards the middle position during rotation, and since the annular grooves are arranged upward and downward respectively, the symmetrically arranged annular grooves form thrusts on the wire body towards the middle from both sides respectively, so as to realize the straightening function, which is beneficial to further ensuring the stability of the wire body maintaining a vertical posture. Brief Description of the Drawings

[0018] Figure 1 is a structural schematic diagram of the utility model;

[0019] Figure 2 is a structural schematic diagram of the experimental assembly of the utility model;

[0020] Figure 3 is a structural schematic diagram of the fixture assembly of the utility model;

[0021] Figure 4 is a structural schematic diagram of the bracket assembly of the utility model;

[0022] Figure 5 is a structural schematic diagram of the counterweight assembly of the utility model;

[0023] Figure 6 is a structural schematic diagram of the limit assembly of the utility model;

[0024] Figure 7 is a front view of the limit assembly of the utility model.

[0025] Explanation of the reference numerals in the drawings:

[0026] 1. Test machine body; 2. Experiment chamber; 3. Door panel; 4. Temperature control screen; 5. Experiment operation screen; 6. Rotary disk; 7. Shaft seat; 8. Experiment component; 9. Fixture component; 901. Fixture seat; 902. Clamping plate; 903. V-shaped clamping groove; 904. Stop disk; 10. Bracket component; 1001. Bottom plate; 1002. Bracket arm; 1003. Positioning disk; 11. Limit component; 1101. Mounting plate; 1102. Connecting rod; 1103. Guide wheel; 1104. Annular groove; 12. Counterweight component; 1201. Hanging rack; 1202. U-shaped plate; 1203. C-shaped card slot; 1204. Knob; 1205. Hanging rod; 1206. Weight; 13. Wire body. Detailed implementation mode

[0027] As Figure 1 , Figure 2 , Figure 6 and Figure 7 shown, a high and low temperature type wire bending and twisting test machine involved in the present utility model includes a test machine body 1 with an experiment chamber 2 formed inside. One side of the inner wall of the experiment chamber 2 is detachably installed with a shaft seat 7, and a wire body 13 is arranged inside the experiment chamber 2. A driving shaft is rotatably installed inside the shaft seat 7. The test machine body 1 is internally provided with a motor, and the driving shaft is driven to rotate by the motor. One end of the driving shaft is detachably installed with an experiment component 8. The experiment component 8 includes a fixture component 9 for clamping and fixing the wire body 13. On both sides of the shaft seat 7, a bracket component 10 for positioning one end of the wire body 13 in the vertical direction is detachably installed. One side of the inner wall of the experiment chamber 2 is detachably installed with a limit component 11. The limit component 11 includes a mounting plate 1101 with guide wheels 1103 symmetrically and rotatably installed on one side. An annular groove 1104 for positioning the other end of the wire body 13 in the vertical direction is formed on the outer edge surface of the guide wheel 1103. The outer surface of the wire body 13 abuts against the annular groove 1104, and the symmetrically arranged annular grooves 1104 are respectively inclined upward and downward.

[0028] In an embodiment of the present utility model, as Figure 1 and Figure 6 shown, connecting rods 1102 are symmetrically constructed on the surface of the mounting plate 1101 away from the guide wheels 1103. One end of the connecting rod 1102 away from the mounting plate 1101 is structurally connected to the inner wall of the experiment chamber 2.

[0029] In an embodiment of the present utility model, as Figure 2 and Figure 3As shown, the fixture assembly 9 includes a fixture base 901 with a retaining disc 904 detachably installed at one end. A clamping plate 902 is detachably installed on one side of the fixture base 901. A V-shaped clamping groove 903 is formed in the middle on the surface of the clamping plate 902 facing the fixture base 901. The outer surface of the wire body 13 abuts against the fixture base 901 and the V-shaped clamping groove 903.

[0030] In an embodiment of the present utility model, as Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 shown, the bracket assembly 10 includes a base plate 1001 with bracket arms 1002 constructed and arranged at both ends of the upper surface. One end of the bracket arm 1002 away from the base plate 1001 is detachably connected to the shaft seat 7. A through hole is formed inside the base plate 1001, and a positioning disc 1003 is detachably installed in the through hole. A positioning hole for the wire body 13 to pass through is formed in the positioning disc 1003. A weight assembly 12 is fixedly arranged at the bottom of the mounting plate 1101. The weight assembly 12 includes a hanging bracket 1201 fixedly connected to the bottom of the mounting plate 1101. A U-shaped plate 1202 is formed on one side of the hanging bracket 1201. A C-shaped clamping groove 1203 for the wire body 13 to be inserted into is formed in the middle at one end of the U-shaped plate 1202 away from the hanging bracket 1201. And a knob 1204 is rotatably installed on one side of the U-shaped plate 1202. One end of the knob 1204 is constructed with a threaded rod that can be screwed into the C-shaped clamping groove 1203 and used to clamp and fix the wire body 13. A hanging rod 1205 is hung in the hanging bracket 1201, and a weight 1206 is detachably installed at the bottom end of the hanging rod 1205.

[0031] In an embodiment of the present utility model, as Figure 1 shown, a temperature control screen 4 and an experimental operation screen 5 are arranged on one side of the testing machine body 1, and a door panel 3 for closing the experimental chamber 2 is movably arranged on one side of the testing machine body 1. A rotating disc 6 is rotatably installed at the bottom of the inner wall of the experimental chamber 2.

[0032] Working principle: This embodiment provides a high and low temperature wire bending and torsion testing machine. When in use, first place one end of the wire body 13 between the fixture seat 901 and the clamping plate 902, then fix the clamping plate 902 to the fixture seat 901 so that one end of the wire body 13 is clamped and fixed between the fixture seat 901 and the clamping plate 902. Then pass the other end of the wire body 13 through the positioning hole in the positioning disc 1003 and out through the annular groove 1104 of the guide wheel 1103. Next, snap the wire body 13 into the C-shaped card slot 1203, and by tightening the knob 1204, fix the hanging bracket 1201 on the wire body 13. Then hang the hanging rod 1205 on the hanging bracket 1201, and use the weight 1206 to balance the end of the wire body 13. Then drive the fixture assembly 9 to rotate through the reciprocating rotation of the drive shaft, so as to realize the bending and torsion test of the wire body 13.

[0033] The embodiments disclosed in this utility model are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of this utility model according to the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of this utility model, they are within the protection scope of this utility model.

Claims

1. A high and low temperature wire bending and twisting tester, characterized in that: It comprises a testing machine body (1) with a test chamber (2) formed inside; An axle seat (7) is detachably mounted on one side of the inner wall of the experimental chamber (2), and a wire body (13) is arranged in the experimental chamber (2); a driving shaft is rotatably mounted in the axle seat (7), and an experimental assembly (8) is detachably mounted on one end of the driving shaft, wherein the experimental assembly (8) comprises a clamp assembly (9) for clamping and fixing the wire body (13); A bracket assembly (10) for positioning one end of the electric wire body (13) in a vertical direction is detachably mounted on both sides of the shaft seat (7), and a limit assembly (11) is detachably mounted on one side of the inner wall of the experimental chamber (2); The limiting assembly (11) comprises a mounting plate (1101) on which a guide wheel (1103) is symmetrically and rotatably mounted on one side, an annular groove (1104) for positioning the other end of the electric wire body (13) in the vertical direction is formed on the outer edge surface of the guide wheel (1103), the outer surface of the electric wire body (13) abuts against the annular groove (1104), and the symmetrically arranged annular grooves (1104) are arranged to be inclined upward and downward respectively.

2. A high and low temperature wire bending and twisting tester according to claim 1, characterized in that: A connecting rod (1102) is symmetrically arranged on one side of the mounting plate (1101) away from the guide wheel (1103), and one end of the connecting rod (1102) away from the mounting plate (1101) is connected to the inner wall of the experimental chamber (2).

3. A high and low temperature wire bending and twisting tester according to claim 1, characterized in that: The clamp assembly (9) comprises a clamp seat (901) with a baffle (904) detachably mounted on one end, a clamp plate (902) detachably mounted on one side of the clamp seat (901), a V-shaped clamp groove (903) being centrally formed on one side of the clamp plate (902) facing the clamp seat (901), and an outer surface of the electric wire body (13) abuts against the clamp seat (901) and the V-shaped clamp groove (903).

4. A high and low temperature wire bending and twisting tester according to claim 1, characterized in that: The support assembly (10) comprises a base plate (1001) with support arms (1002) constructed at both ends of the upper surface, the end of the support arm (1002) away from the base plate (1001) is detachably connected to the shaft seat (7), a through hole is formed inside the base plate (1001), a positioning plate (1003) is detachably installed in the through hole, and a positioning hole is formed inside the positioning plate (1003) for the power line body (13) to pass through.

5. A high and low temperature wire bending and twisting tester according to claim 1, characterized in that: A counterweight assembly (12) is fixedly arranged at the bottom of the mounting plate (1101), and the counterweight assembly (12) comprises a hanger (1201) fixedly connected to the bottom of the mounting plate (1101); a U-shaped plate (1202) is formed on one side of the hanger (1201); a C-shaped slot (1203) for clamping the power line body (13) is centrally provided at one end of the U-shaped plate (1202) away from the hanger (1201); a knob (1204) is rotatably mounted on one side of the U-shaped plate (1202); one end of the knob (1204) is configured with a threaded rod that can be screwed into the C-shaped slot (1203) and is used to clamp and fix the power line body (13); a hanging rod (1205) is hung in the hanger (1201); a weight (1206) is detachably mounted on the bottom end of the hanging rod (1205).

6. A high and low temperature wire bending and twisting tester according to claim 1, characterized in that: A temperature control screen (4) and an experimental operation screen (5) are arranged on one side of the testing machine body (1), and a door panel (3) for closing the experimental chamber (2) is movably arranged on one side of the testing machine body (1), and a rotating disk (6) is rotatably mounted on the bottom of the inner wall of the experimental chamber (2).

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