Cable flexibility testing device

Abstract

The utility model discloses a cable flexibility testing device, which comprises a tensile machine, a pressure head and a supporting assembly, and is characterized in that the tensile machine comprises a base and a cross beam, and the cross beam is slidably mounted on the base along the vertical direction; the pressure head is detachably mounted on the lower side of the cross beam; the supporting assembly comprises a mounting seat and two supporting pieces, the mounting seat is arranged on the base and located below the pressing head, the two supporting pieces are arranged on the mounting seat at intervals in the first direction, the pressing head is located between the two supporting pieces, and the two supporting pieces are used for placing cables. The device can be used only by simply transforming the tensile machine without additionally purchasing force application equipment, the cost is low, the use is convenient, meanwhile, the tensile machine can apply different forces and can be adjusted according to different cables, and the adaptation range of the device is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of cable performance testing, in particular to a cable softness testing device. Background Art

[0002] Softness refers to the combined performance of elastic materials such as leather and tubing, including stress, deformation, elongation, and recovery, when subjected to stress and deformation. Linear materials such as cables, plastic ropes, and elastic tubing are widely used, and some applications require softness, necessitating softness testing.

[0003] Patent CN205879700U discloses a cable softness testing machine, comprising a force-applying device, a first support component, a second support component, and a support base. The first support component and the second support component are both arranged on the upper surface of the support base. The force-applying device is arranged between the first support component and the second support component, and the force-applying device is arranged above the support base.

[0004] However, the force applying device in the above-mentioned prior art needs to be equipped with a specific force applying device for use, which is costly and inconvenient to use. Utility Model Content

[0005] The purpose of the present invention is to overcome the above technical deficiencies and propose a cable flexibility testing device to solve the technical problems in the prior art that the force applying device needs to be equipped with a specific force applying device for use, which is costly and inconvenient to use.

[0006] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0007] The utility model provides a cable flexibility testing device, comprising:

[0008] The tensile testing machine comprises a base and a crossbeam, wherein the crossbeam is slidably mounted on the base in a vertical direction;

[0009] a pressure head detachably mounted on the underside of the beam; and

[0010] The support assembly includes a mounting seat and two support members. The mounting seat is arranged on the base and below the pressure head. The two support members are arranged on the mounting seat at intervals along a first direction, and the pressure head is located between the two support members. The two support members are used for placing cables.

[0011] In some embodiments, a connecting column is provided on the lower side of the cross beam. An installation hole is provided at the lower end of the connecting column. A first insertion hole communicating with the installation hole penetrates through the circumferential side of the connecting column. A connecting portion is provided at the upper end of the pressing head. The connecting portion is adapted to the installation hole. A second insertion hole is provided on the circumferential side of the connecting portion. The connecting portion is arranged in the installation hole, and the first insertion hole and the second insertion hole are aligned.

[0012] The cable flexibility testing device further includes a pin, and the pin is inserted into the first insertion hole and the second insertion hole.

[0013] In some embodiments, the lower end of the pressing head is arranged in an arc shape.

[0014] In some embodiments, at least one of the two support members is movably arranged in a first direction so that the distance between the two support members is adjustable.

[0015] In some embodiments, both of the two support members are slidably arranged in the first direction;

[0016] The support assembly further includes a driving member, and the driving member is connected to the two support members to drive the two support members to approach and separate from each other synchronously.

[0017] In some embodiments, a threaded hole penetrates through the support member;

[0018] The driving member includes a lead screw. The lead screw is rotatably installed on the mounting base along the axis in the first direction. The lead screw includes a first threaded section and a second threaded section arranged in sequence along its axial direction. The threads of the first threaded section and the second threaded section are arranged in opposite directions. The first threaded section is threadedly connected to one of the support members, and the second threaded section is threadedly connected to the other support member.

[0019] In some embodiments, the support member includes a slider and a support block. The slider is slidably installed on the mounting base, and the support block is detachably installed on the upper side of the slider.

[0020] In some embodiments, a limiting groove is provided on the upper side of the slider. The limiting groove extends along a second direction. A limiting protrusion is provided at the lower end of the support block. The limiting protrusion extends along the second direction. The limiting protrusion is adapted to the limiting groove. When the support block is placed above the slider, the limiting protrusion cooperates with the limiting groove to limit the support block from moving in the first direction. The first direction and the second direction are perpendicular to each other.

[0021] In some embodiments, the thickness of the support block in the first direction is tapered from bottom to top.

[0022] In some embodiments, the mounting base is detachably connected to the base.

[0023] Compared with the prior art, the cable flexibility testing device provided by the present utility model has a cross beam slidably mounted on the base in the vertical direction; the pressing head is detachably mounted on the lower side of the cross beam; the mounting base is provided on the base and is located below the pressing head, and two support members are arranged on the mounting base at intervals in the first direction, and the pressing head is located between the two support members. The two support members are used for placing the cable. Specifically, when in use, the cable to be tested is horizontally placed on the two support members and is located directly below the pressing head. Subsequently, the tensile testing machine is started to drive the cross beam and the pressing head to move downward, so that the pressing head abuts against the cable to be tested and applies a downward force to the cable to be tested, thereby performing the test. In this application, by using the existing tensile testing machine, removing the original chuck of the tensile testing machine and installing the pressing head at the installation position of the chuck, the flexibility of the cable can be tested. There is no need for a specific force application device, and only a simple modification of the tensile testing machine is required for use. There is no need to purchase an additional force application device separately, with low cost and convenient use. At the same time, the tensile testing machine can apply different forces and can be adjusted according to different cables, expanding the adaptability range of the device.

[0024] The above description is only an overview of the technical solution of the present utility model. In order to be able to more clearly understand the technical means of the present utility model and to be implemented in accordance with the content of the description, the preferred embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings. The specific implementation manners of the present utility model are given in detail by the following embodiments and their accompanying drawings. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of an embodiment of the cable flexibility testing device provided by the present utility model;

[0026] Figure 2 is Figure 1 a partial schematic diagram of the cable flexibility testing device in

[0027] Figure 3 is Figure 1 the front view of the cable flexibility testing device in

[0028] Figure 4 is Figure 1 a three-dimensional schematic diagram of the pressing head in

[0029] Figure 5 is Figure 1 a three-dimensional schematic diagram of the support assembly in

[0030] Figure 6 is Figure 1 a three-dimensional schematic diagram of the support assembly from another perspective in

[0031] Explanation of the reference numerals:

[0032] 1 - Tensile testing machine, 11 - Cross beam, 12 - Connecting column, 2 - Press head, 21 - Connecting part, 211 - Second jack, 3 - Pin, 4 - Support assembly, 41 - Mounting seat, 42 - Support member, 421 - Slide block, 422 - Support block, 4221 - Limit projection, 43 - Lead screw, 44 - Connecting plate, 45 - Locking screw, 5 - Magnetic base. Specific embodiments

[0033] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0034] In order to solve the technical problems in the prior art that the force - applying device needs to be equipped with specific force - applying equipment for use, which is costly and inconvenient to use, the present utility model provides a cable softness testing device. By using an existing tensile testing machine, removing the original chuck of the tensile testing machine and installing the press head at the installation position of the chuck, the softness of the cable can be tested. There is no need for specific force - applying equipment, and only simple modification of the tensile testing machine is required for use. There is no need to purchase additional force - applying equipment, the cost is low, and it is convenient to use. At the same time, the tensile testing machine can apply different forces and can be adjusted according to different cables, expanding the adaptability range of the device.

[0035] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of the cable softness testing device in an embodiment of the present utility model.

[0036] The present utility model provides a cable softness testing device, including a tensile testing machine 1, a press head 2 and a support assembly 4. The tensile testing machine 1 includes a base and a cross beam 11, and the cross beam 11 is slidably installed on the base in the vertical direction; the press head 2 is detachably installed on the lower side of the cross beam 11; and the support assembly 4 includes a mounting seat 41 and two support members 42. The mounting seat 41 is arranged on the base and is located below the press head 2. The two support members 42 are arranged at intervals along a first direction on the mounting seat 41, and the press head 2 is located between the two support members 42. The two support members 42 are used for placing the cable.

[0037] In this embodiment, please refer to Figures 1 to 3, the cross beam 11 is slidably installed on the base in the vertical direction; the indenter 2 is detachably installed on the lower side of the cross beam 11; the mounting seat 41 is arranged on the base and is located below the indenter 2, and the two support members 42 are arranged on the mounting seat 41 at intervals in the first direction, and the indenter 2 is located between the two support members 42. The two support members 42 are used for placing the cable. Specifically, during use, the cable to be tested is horizontally placed on the two support members 42 so that it is directly below the indenter 2. Then, the tensile testing machine 1 is started to drive the cross beam 11 and the indenter 2 to move downward, so that the indenter 2 abuts against the cable to be tested and applies a downward force to the cable to be tested, thereby performing the test. In this application, by using the existing tensile testing machine 1, removing the original chuck of the tensile testing machine 1 and installing the indenter 2 at the installation position of the chuck, the softness of the cable can be tested. There is no need for a specific force application device, and only a simple modification of the tensile testing machine 1 is required for use. There is no need to purchase additional force application equipment, the cost is low, and it is convenient to use. At the same time, the tensile testing machine 1 can apply different forces and can be adjusted according to different cables, expanding the adaptation range of the device.

[0038] It should be noted that the tensile testing machine 1 has a power device, and the power device is connected to the cross beam 11 to drive the cross beam 11 to move in the vertical direction. The tensile testing machine 1 is an existing technology and will not be elaborated here.

[0039] In one embodiment, please refer to Figures 2 to 4 , a connecting column 12 is provided on the lower side of the cross beam 11. An installation hole is provided at the lower end of the connecting column 12. A first insertion hole communicating with the installation hole is penetrated through the circumferential side of the connecting column 12. A connecting portion 21 is provided at the upper end of the indenter 2. The connecting portion 21 is adapted to the installation hole. A second insertion hole 211 is provided on the circumferential side of the connecting portion 21. The connecting portion 21 is arranged in the installation hole, and the first insertion hole and the second insertion hole 211 are aligned; the cable softness testing device further includes a pin 3, and the pin 3 is inserted into the first insertion hole and the second insertion hole 211.

[0040] In this embodiment, a connecting column 12 is provided on the lower side of the cross beam 11, and the original chuck is detachably connected to the connecting column 12. In order to make the pressure head 2 adapt to the connecting column 12, a connecting portion 21 is provided at the upper end of the pressure head 2. The connecting portion 21 is adapted to the mounting hole. A second jack 211 is provided on the circumferential side of the connecting portion 21. The connecting portion 21 is disposed in the mounting hole, and the first jack and the second jack 211 are aligned. The pin 3 is inserted into the first jack and the second jack 211. The mounting hole can limit the circumferential direction of the connecting portion 21, and the pin 3 can limit the axial direction of the connecting portion 21, so as to achieve the purpose of fixing the connecting portion 21, so that the pressure head 2 is detachably mounted on the connecting column 12, and both installation and disassembly are relatively convenient.

[0041] In one embodiment, please refer to Figure 4 , the lower end of the pressure head 2 is arc-shaped.

[0042] When the pressure head 2 exerts a downward force on the cable, the cable will bend downward. In order to prevent the pressure head 2 from rubbing against the cable, the lower end of the pressure head 2 is arc-shaped, which can protect the cable during the test.

[0043] In one embodiment, please refer to Figures 5 to 6 , at least one of the two support members 42 is movably provided in the first direction so that the distance between the two support members 42 is adjustable.

[0044] In this embodiment, when testing different cables, the distance between the two support members 42 is also different. In order to be able to test cables of different sizes, at least one of the two support members 42 is movably provided in the first direction, so as to adjust the distance between the two support members 42 to adapt to cables of different sizes.

[0045] Specifically, one of the two support members 42 can be fixedly provided on the mounting base 41, and the other support member 42 can be movably provided in the first direction, or both of the two support members 42 can be movably provided in the first direction.

[0046] In one embodiment, please refer to Figures 5 to 6 , both of the two support members 42 are slidably provided in the first direction; the support assembly 4 further includes a driving member, and the driving member is connected to the two support members 42 to drive the two support members 42 to move synchronously closer to and away from each other.

[0047] In this embodiment, during the test, it has a better effect that the indenter 2 is located exactly in the middle of the two support members 42. When adjusting the distance between the support members 42, in order to ensure that the indenter 2 is always located on the central axis of the two support members 42, both of the two support members 42 are movably installed on the mounting base 41, and the driving member is connected to both of the two support members 42 at the same time. The driving member can drive the two support members 42 to move synchronously, that is, it can drive the two support members 42 to approach or move away from each other synchronously. With such a setting, it can be ensured that the displacements of the two support members 42 are the same, and it is ensured that the indenter 2 is always located on the central axis of the two support members 42.

[0048] In one embodiment, please refer to Figures 5 to 6 , the support member 42 is provided with a threaded hole penetrating therethrough; the driving member includes a lead screw 43, the lead screw 43 is rotatably installed on the mounting base 41 along the axis in the first direction, the lead screw 43 includes a first thread section and a second thread section arranged in sequence along its axial direction, the threads of the first thread section and the second thread section are arranged in opposite directions, the first thread section is threadedly connected to one of the support members 42, and the second thread section is threadedly connected to the other support member 42.

[0049] In this embodiment, a groove is provided on the upper side of the mounting base 41, the groove extends along the first direction, a nut is provided at the lower end of the support member 42, the nut is provided with the threaded hole, the thread is located in the groove, both ends of the lead screw 43 are rotatably installed in the groove through bearings, and the first thread section and the second thread section on the lead screw 43 have opposite threads. The first thread section is threadedly connected to one of the support members 42, and the second thread section is threadedly connected to the other support member 42. With such a setting, when the lead screw 43 is rotated, the two support members 42 can be driven to move synchronously.

[0050] In this embodiment, it further includes a handwheel, and the handwheel is provided at one end of the lead screw 43.

[0051] In this embodiment, stop protrusions are further provided at opposite ends of the mounting base 41 along the first direction, and the stop protrusions are used to limit the support member 42 from detaching from the mounting base 41.

[0052] In one embodiment, please refer to Figures 5 to 6 , the support member 42 includes a slider 421 and a support block 422, the slider 421 is slidably installed on the mounting base 41, and the support block 422 is detachably installed on the upper side of the slider 421.

[0053] In this embodiment, the nut is provided at the lower end of the slider 421, and the support block 422 is detachably connected to the slider 421, facilitating the replacement of the support block 422 to adapt to different models of cables.

[0054] In one embodiment, please refer to Figures 5 to 6 , a limiting groove is provided on the upper side of the slider 421, the limiting groove extends along a second direction, a limiting protrusion 4221 is provided at the lower end of the support block 422, the limiting protrusion 4221 extends along the second direction, and the limiting protrusion 4221 is adapted to the limiting groove. When the support block 422 is placed above the slider 421, the limiting protrusion 4221 cooperates with the limiting groove to limit the movement of the support block 422 along a first direction, and the first direction and the second direction are perpendicular to each other.

[0055] In this embodiment, the support block 422 is only subjected to forces in the downward and first directions. Therefore, only the support block 422 needs to be limited in the first direction. Thus, a limiting groove is provided on the upper side of the slider 421, the limiting groove extends along the second direction, a limiting protrusion 4221 is provided at the lower end of the support block 422, the limiting protrusion 4221 extends along the second direction, and when the limiting protrusion 4221 is placed in the limiting groove, the support block 422 can be limited, and the installation and disassembly are relatively convenient.

[0056] In one embodiment, please refer to Figures 5 to 6 , the thickness of the support block 422 in the first direction is tapered from bottom to top.

[0057] In one embodiment, please refer to Figures 5 to 6 , the mounting base 41 is detachably connected to the base.

[0058] In this embodiment, since the material of the base is iron, in order to facilitate the installation and disassembly of the mounting base 41, a magnetic base 5 is provided at the bottom of the mounting base 41, and the magnetic base 5 is magnetically coupled with the base. By providing the magnetic base 5, the installation and disassembly of the mounting base 41 can be realized, and the operation is simple.

[0059] In this embodiment, please refer to Figures 5 to 6 , in order to fix differently after the support member 42 moves to a set position, two locking members are further included. The two locking members correspond to the two support members 42 one by one. Each locking member is provided on the support member 42, and the locking member is used to lock the support member 42 after the support member 42 moves to the set position.

[0060] Specifically, it further includes a connecting plate 44 and a locking screw 45. The connecting plate 44 is arranged on one side of the support member 42, and the connecting plate 44 is bent downward to form a bent portion. The bent portion corresponds to the side of the mounting base 41. The bent portion is provided with a threaded hole. The locking screw 45 is in threaded cooperation with the bent portion. After the support member 42 moves to the set position, the locking screw 45 abuts against the side surface of the mounting base 41 to lock the support member 42.

[0061] For a better understanding of the present invention, the following is a detailed description of the technical solution of the present invention in conjunction with Figures 1 to 6 the present invention:

[0062] During specific use, the cable to be tested is horizontally placed on the two support members 42 and is located directly below the pressing head 2. Subsequently, the tensile testing machine 1 is started to drive the cross beam 11 and the pressing head 2 to move downward, so that the pressing head 2 abuts against the cable to be tested and applies a downward force to the cable to be tested, thereby performing the test. In this application, the existing tensile testing machine 1 is used. The original chuck of the tensile testing machine 1 is removed, and the pressing head 2 is installed at the installation position of the chuck, so that the softness of the cable can be tested. There is no need for a specific force application device. It only needs to be simply modified to the tensile testing machine 1 to be used. There is no need to purchase an additional force application device separately, with low cost and convenient use. At the same time, the tensile testing machine 1 can apply different forces and can be adjusted according to different cables, expanding the adaptation range of the device.

[0063] The specific embodiments of the present invention described above do not constitute a limitation to the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A cable softness testing device, characterized in that, It includes: A tensile testing machine, including a base and a cross beam, the cross beam is slidably mounted on the base in the vertical direction; A pressure head, detachably mounted on the lower side of the cross beam; And A support assembly, including a mounting seat and two support members, the mounting seat is provided on the base and located below the pressure head, the two support members are arranged at intervals in the first direction on the mounting seat, and the pressure head is located between the two support members, the two support members are for placing cables.

2. The cable flexibility testing device according to claim 1, wherein, A connecting column is provided on the lower side of the cross beam, a mounting hole is provided at the lower end of the connecting column, a first jack communicating with the mounting hole is penetrated through the circumferential side of the connecting column, a connecting portion is provided at the upper end of the pressure head, the connecting portion is adapted to the mounting hole, a second jack is provided on the circumferential side of the connecting portion, the connecting portion is arranged in the mounting hole, and the first jack and the second jack are aligned; The cable softness testing device further includes a pin, and the pin is inserted into the first jack and the second jack.

3. The cable flexibility testing device according to claim 1, wherein, The lower end of the pressure head is arranged in an arc shape.

4. The cable softness testing device according to claim 1, wherein, At least one of the two support members is movably arranged in the first direction so that the distance between the two support members is adjustable.

5. The cable softness testing device according to claim 4, characterized in that, Both of the two support members are slidably arranged in the first direction; The support assembly further includes a driving member, and the driving member is connected to the two support members to drive the two support members to move synchronously closer to and away from each other.

6. The cable flexibility testing device according to claim 5, wherein, A threaded hole is penetrated through the support member; The driving member includes a lead screw, the lead screw is rotatably mounted on the mounting seat along the axis in the first direction, the lead screw includes a first threaded section and a second threaded section arranged in sequence along its axial direction, the threads of the first threaded section and the second threaded section are arranged in opposite directions, the first threaded section is threadedly connected to one of the support members, and the second threaded section is threadedly connected to the other support member.

7. The cable flexibility testing device according to claim 4, wherein, The support member includes a slider and a support block, the slider is slidably mounted on the mounting seat, and the support block is detachably mounted on the upper side of the slider.

8. The cable flexibility testing device according to claim 7, characterized in that, A limiting groove is provided on the upper side of the slider, the limiting groove extends in the second direction, a limiting protrusion is provided at the lower end of the support block, the limiting protrusion extends in the second direction, the limiting protrusion is adapted to the limiting groove, so that when the support block is placed above the slider, the limiting protrusion cooperates with the limiting groove to limit the support block from moving in the first direction, and the first direction and the second direction are perpendicular to each other.

9. The cable flexibility testing device according to claim 7, characterized in that, The thickness of the support block in the first direction is tapered from bottom to top.

10. The cable flexibility testing device according to claim 1, characterized in that, The mounting seat is detachably connected to the base.

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