A winding and torsion test device for cable detection

Abstract

The present invention is applicable to the field of cable production, and provides a winding and torsion test device for cable detection, including a base, and further including: a driving unit, which is fixedly arranged on one side of the base far away from the mounting frame, and an elastic telescopic rod is arranged at the output end of the driving unit, and the other end of the elastic telescopic rod is fixedly connected with a driving wheel; a moving and guiding unit, which includes a screw rod rotatably arranged on the base, and one end of the screw rod is fixedly connected with a driven wheel; a first clamping unit, which includes a mounting block fittingly sleeved on the screw rod, a clamping member is rotatably connected to the mounting block, and a first transmission member is fixedly connected to one side of the clamping member facing the driving unit through a telescopic member capable of controlling its own length. The beneficial effects are as follows: This device realizes the stopping of the cable movement and pulling at a specified position only by mechanical cooperation, and can perform a torsion action while the movement stops, and this structure is more stable and reliable.

Description

Technical Field

[0001] The present invention belongs to the field of cable production, and particularly relates to a winding and torsion test device for cable detection. Background Art

[0002] Electric wires and cables are wire products used to transmit electrical (magnetic) energy, information, and achieve the conversion of electrical and magnetic energy. Generally, they have multiple conductive inner cores and are externally wrapped with an insulating protective layer.

[0003] After the production of electric wires and cables, a series of performance tests will be carried out, and only those that pass the tests can be sold on the market. In actual use, electric wires and cables need to be pulled, so generally, tests in aspects such as stretching and torsion will be carried out.

[0004] Existing cable torsion test devices generally clamp the cable end through a moving structure, and then drive the structure to rotate through a motor to carry out the torsion test. The moving and rotating structures are separated, and the start and stop of the two need to be controlled by a circuit, making the structure of the device relatively complex and the probability of failure relatively high. Summary of the Invention

[0005] The purpose of the embodiments of the present invention is to provide a winding and torsion test device for cable detection, aiming to solve the problems mentioned in the above background art.

[0006] The embodiments of the present invention are implemented as follows. A winding and torsion test device for cable detection includes a base, and a mounting frame arranged on one side of the base. The mounting frame is used to place a cable reel, and further includes:

[0007] A driving unit, which is fixedly arranged on the side of the base far from the mounting frame. An elastic telescopic rod is arranged at the output end of the driving unit, and the other end of the elastic telescopic rod is fixedly connected to a driving wheel;

[0008] A moving and guiding unit, which includes a screw rod horizontally and rotatably arranged on the base. One end of the screw rod is fixedly connected to a driven wheel, and the elastic telescopic rod pushes the driving wheel into contact with the driven wheel;

[0009] A first clamping unit, which includes a mounting block sleeved on the screw rod in a matching manner. A clamping member for clamping the cable end is rotatably connected to the mounting block, and further includes a limiting member for restricting the rotation of the mounting block. One side of the clamping member facing the driving unit is fixedly connected to a first transmission member through a telescopic member that can control its own length. When the first transmission member is in contact with the driving wheel, the driving wheel drives the clamping member to rotate;

[0010] A second clamping unit, which is arranged on the side of the base close to the mounting frame. The second clamping unit is used to include two opposite moving clamping blocks for fixedly clamping the cable located between the clamping blocks.

[0011] Preferably, an installation slot is provided on the base along its length direction, and a linkage unit is arranged in the installation slot. When the first clamping unit moves towards the driving unit side, the linkage unit drives two clamping blocks in the second clamping unit to approach each other. When the first clamping unit moves towards the installation frame side, the linkage unit is used to drive the two clamping blocks in the second clamping unit to move away from each other.

[0012] Preferably, the second clamping unit includes two spaced guiding blocks fixedly connected in the installation slot. A toggle frame connected to the clamping block is slidably clamped between the guiding blocks. The linkage unit includes a first piston and a second piston connected vertically, and the first piston is in communication with the second piston. Both ends of the second piston are provided with piston rods connected to the toggle frame. When the first clamping unit moves, it drives the first piston to operate.

[0013] Preferably, the diameter of the first piston is smaller than the diameter of the second piston.

[0014] Preferably, the first clamping unit further includes a baffle fixedly connected to the bottom of the installation block. The end of the piston rod of the first piston is fixedly connected with a moving block. An elastic member connected to the inner wall of the installation slot is arranged on the other side of the moving block. The moving block is located between the baffle and the driving unit, and the top of the moving block is located outside the installation slot. The maximum distance between the clamping blocks is greater than the width of the first clamping unit.

[0015] Preferably, a vertical plate is fixedly connected to one side of the base, a cross frame is fixedly connected to the vertical plate, brackets are fixedly connected to both ends of the cross frame, a screw rod is rotatably connected to the brackets, and the limiting member is fixedly connected to the installation block and is slidably clamped with the cross frame.

[0016] Preferably, a display screen is arranged on the vertical plate.

[0017] Preferably, the installation height of the cable wire reel on the installation frame is greater than the height of the clamping member.

[0018] A winding and torsion test device for cable detection provided by an embodiment of the present invention has the following beneficial effects: When the device is in use, a screw rod that rotates drives a clamping member fixed with a cable to move and pull. The cable can be fixed from the other end by the oppositely moving clamping blocks. When the mounting block moves to a specified position, at this time, the first transmission member comes into contact with the driving wheel and can push the elastic telescopic rod to compress and displace the driving wheel. At this time, the driving unit can drive the clamping member to rotate. Since the displacement of the driving wheel separates from the driven wheel, the screw rod stops rotating, and the mounting block stops moving and its position is fixed. When the mounting block returns during the return stroke, as long as the telescopic member is controlled to shorten its length to make the driving wheel contact the driven wheel again, the mounting block can move in the reverse direction for reset. Therefore, the device realizes the stopping of the cable movement and pulling at a specified position only by mechanical cooperation, and can perform a torsion action while the movement stops. This structure is more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a front view of a winding and torsion test device for cable detection provided by an embodiment of the present invention;

[0020] Figure 2 is a front sectional view of a winding and torsion test device for cable detection provided by an embodiment of the present invention;

[0021] Figure 3 is Figure 1 a partial enlarged view of part B in

[0022] Figure 4 is Figure 1 a sectional view taken along line A-A in

[0023] Figure 5 is a three-dimensional structure diagram of another form of driving wheel provided by an embodiment of the present invention;

[0024] Figure 6 is a three-dimensional structure diagram of the first transmission member provided by an embodiment of the present invention;

[0025] Figure 7 is a three-dimensional structure diagram of the clamping member provided by an embodiment of the present invention;

[0026] Figure 8 is a schematic diagram of the positional relationship when the first clamping unit moves to the position between the second clamping unit and the mounting frame provided by an embodiment of the present invention;

[0027] In the attached drawings: 1 - base; 2 - mounting bracket; 3 - drive unit; 301 - elastic telescopic rod; 302 - driving wheel; 303 - motor; 4 - moving and guiding unit; 401 - screw; 402 - driven wheel; 5 - first clamping unit; 501 - mounting block; 502 - clamping member; 5021 - round block; 5022 - placement groove; 5023 - pressing rod; 503 - limiting member; 504 - telescopic member; 505 - first transmission member; 506 - baffle; 6 - second clamping unit; 601 - clamping block; 7 - tapered groove; 8 - cushion block; 9 - mounting slot; 10 - linkage unit; 1001 - guiding block; 1002 - crank frame; 1003 - first piston; 1004 - second piston; 11 - moving block; 12 - elastic member; 13 - vertical plate; 14 - cross frame; 15 - bracket; 16 - display screen. Detailed implementation manners

[0028] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0030] As Figure 1 , Figure 2 and Figure 3 shown, a structural diagram of a winding and torsion test device for cable detection provided by an embodiment of the present invention includes:

[0031] A base 1 and a mounting bracket 2 arranged on one side of the base 1. The mounting bracket 2 is used for placing a cable reel, and further includes:

[0032] A drive unit 3, which is fixedly arranged on the side of the base 1 away from the mounting bracket 2. An elastic telescopic rod 301 is arranged at the output end of the drive unit 3, and the other end of the elastic telescopic rod 301 is fixedly connected to a driving wheel 302.

[0033] A moving and guiding unit 4, which includes a screw 401 horizontally and rotatably arranged on the base 1. One end of the screw 401 is fixedly connected to a driven wheel 402, and the elastic telescopic rod 301 pushes the driving wheel 302 into contact with the driven wheel 402.

[0034] The first clamping unit 5, the first clamping unit 5 includes a mounting block 501 that is fitted and sleeved on the screw rod 401. A clamping member 502 for clamping the cable end is rotatably connected to the mounting block 501. It also includes a limiting member 503 that is used to limit the rotation of the mounting block 501. On the side of the clamping member 502 facing the driving unit 3, a first transmission member 505 is fixedly connected through a telescopic member 504 that can control its own length. When the first transmission member 505 contacts the driving wheel 302, the driving wheel 302 drives the clamping member 502 to rotate.

[0035] The second clamping unit 6, the second clamping unit 6 is arranged on one side of the base 1 close to the mounting frame 2. The second clamping unit 6 is used to include two clamping blocks 601 that move towards each other. The clamping blocks 601 are used to fixedly clamp the cable located between the clamping blocks 601.

[0036] In an embodiment of the present invention, when the device is in use, the rotating screw rod 401 drives the clamping member 502 fixed with the cable to move and pull. The cable can be fixed from the other end by the clamping blocks 601 that move towards each other. When the mounting block 501 moves to the designated position, at this time the first transmission member 505 contacts the driving wheel 302, and can push the elastic telescopic rod 301 to compress and displace the driving wheel 302. At this time, the driving unit 3 can drive the clamping member 502 to rotate. And because the displacement of the driving wheel 302 separates from the driven wheel 402, the screw rod 401 stops rotating, and the mounting block 501 stops moving and its position is fixed. When the mounting block 501 returns on its way back, as long as the telescopic member 504 is controlled to shorten its length so that the driving wheel 302 contacts the driven wheel 402 again, the mounting block 501 can be reversely reset and move. Therefore, the device realizes the stopping of the cable moving and pulling at the designated position only by mechanical cooperation, and can perform a twisting action while the movement stops. This kind of structure is more stable and reliable.

[0037] In an example of the present invention, the elastic telescopic rod 301 adopts a rod with a polygonal cross-section, and only this kind of structure can transmit torque. The driving unit 3 also includes a motor 303 fixedly arranged on the base 1. The driving wheel 302 and the driven wheel 402 can adopt the way of contact transmission with conical wheels. Of course, regular circular wheels can also be used. It is the way of side contact transmission between the two, which is convenient for the two to separate. As Figure 7 shown, the clamping member 502 adopts a round block 5021 rotatably connected to the mounting block 501. A placement groove 5022 is opened on the end face of the round block 5021. A pressing rod 5023 is threadedly inserted into the round block 5021. By twisting the pressing rod 5023, the end of the cable can be fixed in the placement groove 5022. As Figure 5 and Figure 6As shown, the first transmission member 505 can adopt the structural form of a conical wheel, and a conical groove 7 matching with the first transmission member 505 is provided on the side surface of the driving wheel 302, so that a large frictional force can be provided when the two are in contact. Of course, the first transmission member 505 can also adopt a disc structure. Correspondingly, a toothed anti-slip structure needs to be provided on the driving wheel 302 and the first transmission member 505 to increase the acting force between the two. The telescopic member 504 can adopt an electric telescopic rod, and of course, it can also adopt the structural form of a hydraulic telescopic rod, such as Figure 4 As shown, an elastic cushion block 8 is fixedly connected to the clamping block 601, which can protect the cable epidermis while clamping the cable. The installation height of the cable reel on the mounting rack 2 is greater than the height of the clamping member 502. The pulling of the first clamping unit 5 will make the cable in a relatively tight state. Coupled with restricting the height of the cable reel, the cable can be located in the second clamping unit 6, and there is no need to set a limiting structure on the second clamping unit 6 to ensure that the clamping block 601 can clamp the cable.

[0038] Such as Figure 2 and Figure 4 As shown in and, as a preferred embodiment of the present invention, an installation slot 9 is provided on the base 1 along its length direction, and a linkage unit 10 is arranged in the installation slot 9. When the first clamping unit 5 moves towards the driving unit 3 side, the linkage unit 10 drives the two clamping blocks 601 in the second clamping unit 6 to approach each other. When the first clamping unit 5 moves towards the mounting rack 2 side, the linkage unit 10 is used to drive the two clamping blocks 601 in the second clamping unit 6 to move away from each other.

[0039] In one case of this embodiment, the second clamping unit 6 includes two spaced guiding blocks 1001 fixedly connected in the installation slot 9. A crank frame 1002 connected to the clamping block 601 is slidably clamped between the guiding blocks 1001. The linkage unit 10 includes a first piston 1003 and a second piston 1004 connected vertically, and the first piston 1003 is communicated with the second piston 1004. Both ends of the second piston 1004 are provided with piston rods connected to the crank frame 1002. When the first clamping unit 5 moves, it drives the first piston 1003 to operate. The diameter of the first piston 1003 is smaller than the diameter of the second piston 1004, which can make the first piston 1003 move a longer distance to meet the moving stroke requirement of the first clamping unit 5. Of course, the linkage unit 10 can adopt a structural form of using a contact switch to control the movement of the clamping block 601,

[0040] Such as Figure 2 and Figure 8As shown in the figure, a supplementary description is made based on the previous embodiment. The first clamping unit 5 further includes a baffle 506 fixedly connected to the bottom of the mounting block 501. The end of the piston rod of the first piston 1003 is fixedly connected with a moving block 11. An elastic member 12 connected to the inner wall of the mounting slot 9 is arranged on the other side of the moving block 11. The moving block 11 is located between the baffle 506 and the driving unit 3. The top of the moving block 11 is located outside the mounting slot 9. The maximum distance between the clamping blocks 601 is greater than the width of the first clamping unit 5.

[0041] In one case of this embodiment, the linkage unit 10 in the previous embodiment restricts the movement of the first clamping unit 5. In this embodiment, through the separated cooperation mode between the baffle 506 and the moving block 11, the first clamping unit can move from the side of the mounting frame 2 between the clamping blocks 601, making it more convenient to fix the cable end. And when the push plate moves to the right, it will not affect the closing of the clamping block 601.

[0042] As Figure 2 As shown in the figure, as a preferred embodiment of the present invention, a vertical plate 13 is fixedly connected to one side of the base 1. A cross frame 14 is fixedly connected to the vertical plate 13. Both ends of the cross frame 14 are fixedly connected with brackets 15. The screw rod 401 is rotatably connected to the brackets 15. The limiting member 503 is fixedly connected to the mounting block 501, and the limiting member 503 is slidably clamped with the cross frame 14.

[0043] In one case of this embodiment, the limiting member 503 can adopt a rod fixedly connected to the mounting block 501. A sliding seat is arranged at the other end of the rod. The sliding seat is in contact with the surface of the cross frame 14, so as to ensure that the mounting block 501 can only move and will not rotate itself. A display screen 16 is arranged on the vertical plate 13. The display screen 16 is used to display the test results and information such as whether the cable meets the factory specification requirements.

[0044] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0045] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A winding and torsion test device for cable detection, comprising a base and a mounting frame arranged on one side of the base, the mounting frame being used for placing a cable reel, characterized in that, Further included are: A driving unit, which is fixedly arranged on one side of the base away from the mounting rack. An elastic telescopic rod is arranged at the output end of the driving unit, and the other end of the elastic telescopic rod is fixedly connected with a driving wheel; A moving guiding unit, which includes a screw rod horizontally and rotatably arranged on the base. One end of the screw rod is fixedly connected with a driven wheel, and the elastic telescopic rod pushes the driving wheel into contact with the driven wheel; A first clamping unit, which includes a mounting block sleeved on the screw rod in a matching manner. A clamping member for clamping the cable end is rotatably connected to the mounting block. A limiting member is further included, which is used to limit the rotation of the mounting block. One side of the clamping member facing the driving unit is fixedly connected with a first transmission member through a telescopic member that can control its own length. When the first transmission member contacts the driving wheel, the driving wheel drives the clamping member to rotate; A second clamping unit, which is arranged on one side of the base close to the mounting rack. The second clamping unit is used for including two clamping blocks moving towards each other, and the clamping blocks are used for fixedly clamping the cable located between the clamping blocks; An installation slot is arranged on the base along its length direction, and a linkage unit is arranged in the installation slot. When the first clamping unit moves towards the driving unit side, the linkage unit drives the two clamping blocks in the second clamping unit to approach each other. When the first clamping unit moves towards the mounting rack side, the linkage unit is used to drive the two clamping blocks in the second clamping unit to move away from each other. The second clamping unit includes two spaced guiding blocks fixedly connected in the installation slot, and a crank frame connected with the clamping block is slidably clamped between the guiding blocks. The linkage unit includes a first piston and a second piston vertically connected, and the first piston and the second piston are communicated with each other. The two ends of the second piston are both provided with piston rods connected with the crank frame. When the first clamping unit moves, it drives the first piston to operate.

2. The winding and torsion test device for cable detection according to claim 1, characterized in that, The diameter of the first piston is smaller than that of the second piston.

3. The winding and torsion test device for cable detection according to claim 1, characterized in that, The first clamping unit further includes a baffle fixedly connected to the bottom of the mounting block. The end of the piston rod of the first piston is fixedly connected with a moving block. An elastic member connected with the inner wall of the installation slot is arranged on the other side of the moving block. The moving block is located between the baffle and the driving unit, and the top of the moving block is located outside the installation slot. The maximum distance between the clamping blocks is greater than the width of the first clamping unit.

4. The winding and torsion test device for cable detection according to claim 1, characterized in that, A vertical plate is fixedly connected to one side of the base, a cross frame is fixedly connected to the vertical plate, and brackets are fixedly connected to both ends of the cross frame. The screw rod is rotatably connected to the brackets, and the limiting member is fixedly connected to the mounting block and is slidably clamped with the cross frame.

5. The winding and torsion test device for cable detection according to claim 4, wherein A display screen is arranged on the vertical plate.

6. The winding and torsion test device for cable detection according to claim 1, wherein, The installation height of the cable reel on the mounting rack is greater than the height of the clamping member.

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