Device for stripping test of cable insulation shielding layer and stripping method

Abstract

The invention discloses a device for a stripping test of a cable insulation shielding layer and a stripping method, and relates to the technical field of wires and cables, and the device comprises an operation unit, a cable clamp unit, a cable parallel notch unit, and a cable insulation shielding stripping unit. The operation unit is connected with the cable clamp unit, the cable parallel notch unit and the cable insulation shielding stripping unit; instructions are given to the cable clamp unit, the cable parallel notch unit and the cable insulation shielding stripping unit through the control operation unit, cables of different specifications can be intelligently recognized, sample preparation parameters can be automatically matched, peelable test sample preparation can be intelligently and rapidly completed, the standardization of sample preparation is ensured, and the test efficiency is improved. And the accuracy of the peelability test is further ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of wire and cable, and particularly to a device and a stripping method for the insulation shielding layer stripping test of a cable; for the operation of the insulation shielding layer stripping test of a cable. Background Art

[0002] A cable is a cable used for transmitting and distributing electric energy, and it has wide applications in fields such as urban underground power grids and outgoing lines of power generation stations. A cable is one of the indispensable infrastructures in modern society, and its safe and efficient operation is of great significance for ensuring power supply and promoting economic development. There may also be gaps at the contact between the insulation surface and the sheath. When the cable is bent, the insulation surface of an oil-paper cable is prone to cracks, and these are all factors leading to partial discharge. By adding a shielding layer of a semiconductive material on the insulation layer surface, the insulation electrical shielding is composed of a semiconductive material with a very low resistivity and a relatively thin thickness and has good contact with the outer surface of the insulation layer, and is equipotential with the metal sheath, avoiding partial discharge with the metal sheath due to defects such as cracks on the cable insulation surface. The main purpose of the insulation shielding peelable test is to detect whether the cable insulation shielding layer can be smoothly peeled off from the insulation layer when subjected to an external force, and whether the peeling force during the peeling process meets the specified requirements. This helps to ensure that during the actual use of the cable, the insulation shielding layer will not easily fall off due to external forces, thus affecting the electrical performance and safety of the cable. The intelligent and fast sample preparation device for the peelability test of the cable insulation shielding can intelligently identify cables of different specifications, automatically match the sample preparation parameters, and intelligently and quickly complete the sample preparation for the peelability test, thereby ensuring the standardization of sample preparation and further guaranteeing the accuracy of the peelability test.

[0003] In the prior art, the Chinese authorized patent publication number: CN 107994513 A, discloses a cable stripping device, including a pedal, a base, a mounting column, a mounting frame, an adjusting bolt, a stand, a stripping cutter head, a bevel gear disk, and a rotating shaft. The pedal is welded to one side end of the base, the mounting column is welded at the center position of the base, the mounting frame is fixed by a nut on the mounting column, the adjusting bolt is welded to the top end of the stand, the stripping cutter head is welded and installed on the two plate frames of the stand, the stand is installed inside the upper end of the mounting frame, the two bevel gear disks are butt-jointed and sleeved on the shaft rod of the rotating shaft, the rotating shaft is installed at the lower end of the mounting frame. A cable stripping device, the design of this device is applicable to the peeling treatment of cables. The height position of the stripping cutter head is adjusted by the adjusting bolt at the upper end of the mounting frame to be applicable to cables of different pipe diameters. The two bevel gear disks are butt-jointed and installed, and the surface of the bevel gear disk has thread teeth with good biting performance. The shaft rod of the rotating shaft is connected to the electric drill mounting disk, and after being powered on, the electric drill drives the bevel gear disk to rotate, so that the cable is pushed inward, and the stripping cutter head cuts the surface layer of the cable. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to disclose a device and a peeling method for the insulation shielding layer peeling test of a cable, aiming at the deficiencies of the prior art, and solving the problems of difficult sample preparation and non-standard sample preparation for the peelability test of the insulation shielding layer of the cable.

[0005] To achieve the above object, the present invention is realized by the following technical solutions: a device and a peeling method for the insulation shielding layer peeling test of a cable, including a control operation unit, a cable clamping unit, a cable flat cutting unit, a cable insulation shielding peeling unit and a cable operation platform;

[0006] The control operation unit is electrically connected to the cable operation platform. The upper part of the cable operation platform is fixedly connected to the lower end of the cable clamping unit. The upper end of the cable clamping unit is in a groove shape for placing the cable. The upper end of the cable flat cutting unit is a device for cutting the cable. The lower end of the cable flat cutting unit is fixedly connected to the cable operation platform. The lower end of the cable insulation shielding peeling unit is fixedly connected to the cable operation platform.

[0007] Furthermore:

[0008] The control operation unit includes a host computer, and the host computer is used to directly issue operation control commands.

[0009] Furthermore:

[0010] The cable clamping unit includes a cable fixing device and a cable reversing device; the cable fixing device is connected to the cable reversing device,

[0011] The cable fixing device contracts to clamp the cable.

[0012] The cable reversing device rotates the cable direction.

[0013] Furthermore:

[0014] The cable parallel cutting unit includes a first image recognition device, a horizontal cutting tool device, and a moving measurement device. The first image recognition device is respectively connected to the horizontal cutting tool device and the moving measurement device;

[0015] The first image recognition device automatically recognizes the length of the cable on the cable clamping unit and recognizes the initial position of the horizontal cutting tool device;

[0016] The horizontal cutting tool device cuts the insulation shielding layer of the cable, longitudinally separating the insulation shielding from the insulation layer;

[0017] The moving measurement device is used to measure the length of the insulation shielding layer to be peeled, and at the same time measure the depth of the horizontal cutting tool device cutting into the cable.

[0018] Furthermore:

[0019] The cable insulation shield stripping unit includes a second image recognition device, a rotary cutting tool device, a rotary measuring device, and an insulation shield clamping device;

[0020] The second image recognition device is respectively connected to the rotary cutting tool device, the rotary measuring device, and the insulation shield clamping device;

[0021] The second image recognition device automatically recognizes the first cut and the second cut of the cable and transmits them to the rotary cutting tool device;

[0022] The first cut is a cut formed when the horizontal cutting tool device cuts into the leftmost side of the cable insulation shield and moves to the rightmost side of the cable;

[0023] The second cut is a cut formed after the cable is rotated clockwise by the cable commutation device and then the horizontal cutting tool device is moved back to the leftmost side of the cable to cut into the insulation shield and move to the rightmost side of the cable;

[0024] The rotary cutting tool device cuts into the space between the cable insulation shield and the insulation layer from the position of the first cut and rotates towards the direction of the second cut;

[0025] The insulation shield clamping device clamps the space between the insulation shield and the insulation layer of the cut cable and moves it upward for stripping operation.

[0026] Furthermore:

[0027] The cable commutation device is used to rotate the cable clockwise, and the rotation angle of the cable commutation device is 120°.

[0028] Furthermore:

[0029] A stripping method for cable insulation shield stripping test,

[0030] Perform the following steps:

[0031] Step (1): Connect the control operation unit to the cable clamping unit, the cable parallel cutting unit, and the cable insulation shield stripping unit respectively. Control the opening of the cable fixing device in the cable clamping unit to the maximum, place the cable on the cable fixing device, and then contract and clamp the opening of the cable fixing device;

[0032] Step (2): The first image recognition device in the cable parallel incision unit automatically recognizes the length of the cable and sends the recognized length information to the control operation unit. The control operation unit moves the horizontal cutting tool device to the initial position at the leftmost side of the cable. The second image recognition device in the cable insulation shielding stripping unit recognizes the thickness of the insulation shielding and transmits it to the cable parallel incision unit;

[0033] Step (3): The cable parallel incision unit controls the horizontal cutting tool device to cut into the insulation shielding and move to the rightmost side of the cable, thereby forming the first cut;

[0034] The cable fixing device releases the fixed cable. The cable reversing device in the cable clamping unit rotates the cable clockwise, and then uses the cable fixing device to contract and clamp the fixed cable. The horizontal cutting tool device moves again to cut into the insulation shielding at the leftmost side of the cable and move to the rightmost side of the cable, thereby forming the second cut;

[0035] The second image recognition device in the cable insulation shielding stripping unit recognizes the first cut and the second cut of the cable and transmits them to the rotating cutting tool device in the cable insulation shielding stripping unit;

[0036] The rotating cutting tool device cuts into the space between the cable insulation shielding and the insulating layer from the position of the first cut and rotates towards the direction of the second cut;

[0037] Step (4): The insulation shielding clamping device in the cable insulation shielding stripping unit extends into the space between the cut cable insulation shielding and the insulating layer, clamps it and moves upward to start stripping, and finally strips out a 5-cm strip;

[0038] After completing Step (3) and Step (4), the cable fixing device releases the fixed cable, and then uses the cable reversing device to rotate the cable clockwise by 120°; the cable fixing device contracts to fix the cable;

[0039] Repeat Step (3) and Step (4) twice to complete the sample preparation.

[0040] Furthermore:

[0041] The distance that the cable reversing device rotates the cable clockwise in Step (3) is 1 cm.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] The present invention relates to a device and a stripping method for the insulation shielding layer stripping test of a cable. By controlling the operation unit to send control instructions to the cable clamping unit, the cable parallel cutting unit, and the cable insulation shielding stripping unit respectively, an image recognition device is used to intelligently identify cables of different specifications, automatically match the sample preparation parameters, and complete the sample preparation for the peelability test intelligently and quickly, so as to ensure the standardization of sample preparation and further guarantee the accuracy of the peelability test. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the overall structure of the wire stripping device of the present invention;

[0045] Figure 2 It is a side view of the structure of the wire stripping device of the present invention;

[0046] Figure 3 It is a flowchart of the wire stripping method of the present invention.

[0047] Description of the reference numerals:

[0048] 1 - Control operation unit, 2 - Cable clamping unit, 3 - Cable parallel cutting unit, 4 - Cable insulation shielding stripping unit; 5 - Cable operation platform. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0050] Embodiment 1

[0051] As Figure 1-2 shown, it shows a schematic diagram of the structure of the present invention, including: a control operation unit 1, a cable clamping unit 2, a cable parallel cutting unit 3, a cable insulation shielding stripping unit 4, and a cable operation platform 5;

[0052] The control operation unit 1 is electrically connected to the cable operation platform 5. The upper part of the cable operation platform 5 is fixedly connected to the lower end of the cable clamping unit 2. The upper end of the cable clamping unit 2 is in a groove shape for placing the cable. The upper end of the cable parallel cutting unit 3 is a device for cutting the cable. The lower end of the cable parallel cutting unit 3 is fixedly connected to the cable operation platform 5. The lower end of the cable insulation shielding stripping unit 4 is fixedly connected to the cable operation platform 5;

[0053] The control operation unit 1 includes a host computer, which is used to directly issue operation control commands;

[0054] The cable clamp unit 2 includes a cable fixing device and a cable commutation device; the cable fixing device is connected to the cable commutation device,

[0055] The cable fixing device shrinks and clamps the cable;

[0056] The cable commutation device rotates the direction of the cable;

[0057] The cable parallel incision unit 3 includes a first image recognition device, a horizontal cutting tool device, and a moving measurement device. The first image recognition device is electrically connected to the horizontal cutting tool device and the moving measurement device respectively;

[0058] The first image recognition device automatically recognizes the length of the cable on the cable clamp unit 2 and the initial position of the horizontal cutting tool device;

[0059] The horizontal cutting tool device cuts the insulating shield of the cable to separate the insulating shield from the insulating layer;

[0060] The moving measurement device is used to measure the length of the insulating shield to be peeled off, and at the same time measure the depth of the horizontal cutting tool device cutting into the cable;

[0061] The cable insulating shield stripping unit 4 includes a second image recognition device, a rotary cutting tool device, a rotary measurement device, and an insulating shield clamping device;

[0062] The second image recognition device is respectively connected to the rotary cutting tool device, the rotary measurement device, and the insulating shield clamping device;

[0063] The second image recognition device automatically recognizes the first cut and the second cut of the cable and transmits them to the rotary cutting tool device;

[0064] The first cut is the cut formed by the horizontal cutting tool device cutting into the leftmost side of the cable insulating shield and moving to the rightmost side of the cable;

[0065] The second cut is the cut formed by rotating the cable 1 cm clockwise by the cable commutation device, and then using the horizontal cutting tool device to move back to the leftmost side of the cable to cut into the insulating shield and move to the rightmost side of the cable;

[0066] The rotary cutting tool device cuts into the space between the insulating shield and the insulating layer of the cable from the position of the first cut and rotates towards the direction of the second cut;

[0067] The insulating shield clamping device clamps between the insulating shield and the insulating layer of the cut cable and moves upward for peeling operation.

[0068] The cable commutation device rotates the cable 120° clockwise.

[0069] Embodiment 2

[0070] As Figure 3 shown, it shows a schematic flow diagram of the peeling method of the present invention.

[0071] Step (1): Connect the control operation unit 1 to the cable clamping unit 2, the cable parallel cutting unit 3, and the cable insulating shield peeling unit 4 respectively. Control the opening of the cable fixing device in the cable clamping unit 2 to the maximum and place the cable on the cable fixing device, and then contract and clamp the opening of the cable fixing device.

[0072] Step (2): The first image recognition device in the cable parallel cutting unit 3 automatically recognizes the length of the cable and sends the recognized length information to the control operation unit 1. The control operation unit 1 moves the horizontal cutting tool device to the initial position at the leftmost side of the cable. The second image recognition device in the cable insulating shield peeling unit 4 recognizes the position and thickness of the insulating shield and transmits it to the cable parallel cutting unit 3.

[0073] Step (3): The cable parallel cutting unit 3 controls the horizontal cutting tool device to cut into the insulating shield and move to the rightmost side of the cable, thereby forming the first cut.

[0074] The cable fixing device releases the fixed cable. The cable commutation device in the cable clamping unit 2 rotates the cable clockwise by 1 cm, and then uses the cable fixing device to contract and clamp the fixed cable. The horizontal cutting tool device moves again to cut into the insulating shield at the leftmost side of the cable and move to the rightmost side of the cable, thereby forming the second cut.

[0075] The second image recognition device in the cable insulating shield peeling unit 4 recognizes the first cut and the second cut of the cable and transmits them to the rotary cutting tool device in the cable insulating shield peeling unit 4.

[0076] The rotary cutting tool device cuts into the space between the cable insulating shield and the insulating layer from the position of the first cut and rotates towards the direction of the second cut.

[0077] Step (4): The insulating shield clamping device in the cable insulating shield peeling unit 4 extends into the space between the cut cable insulating shield and the insulating layer, clamps and moves upward to start peeling, and finally peels out a 5-cm strip.

[0078] Step (5): After completing the said step (3) and the said step (4), loosen the fixed cable by the cable fixing device, and then use the cable commutation device to rotate the cable clockwise by 120°; the cable fixing device contracts to fix the cable;

[0079] Repeat the said step (3) and the said step (4) twice to complete the sample preparation.

[0080] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for testing the insulation shielding layer of a cable. Features: It comprises a control operation unit (1), a cable clamp unit (2), a cable flat cutting unit (3), a cable insulation shield stripping unit (4) and a cable operation platform (5); The control operation unit (1) is electrically connected to the cable operation platform (5); the upper end of the cable operation platform (5) is fixedly connected to the lower end of the cable clamp unit (2); the upper end of the cable clamp unit (2) is in the shape of a groove for placing the cable; the upper end of the cable flat cut unit (3) is a device for cutting the cable; the lower end of the cable flat cut unit (3) is fixedly connected to the cable operation platform (5); and the lower end of the cable insulation shield stripping unit (4) is fixedly connected to the cable operation platform (5).

2. A device for performing a cable insulation shielding layer stripping test according to claim 1, Features: The control operation unit (1) comprises a host computer, and the host computer is used to directly issue operation control commands.

3. A device for performing a cable insulation shielding layer stripping test according to claim 1, Features: The cable clamp unit (2) comprises a cable fixing device and a cable reversing device; the cable fixing device is connected to the cable reversing device. The cable fixing device contracts and clamps the cable; The cable reversing device rotates the direction of the cable.

4. A device for performing a cable insulation shielding layer stripping test according to claim 1, Features: The cable parallel cutting unit (3) comprises a first image recognition device, a horizontal tool device, and a mobile measuring device, wherein the first image recognition device is connected to the horizontal tool device and the mobile measuring device respectively; The first image recognition device automatically recognizes the length of the cable on the cable clamp unit (2) and recognizes the initial position of the horizontal tool device; The horizontal cutter device cuts the insulation shielding layer of the cable line to separate the insulation shielding layer from the insulation layer longitudinally; The mobile measuring device is used to measure the length of the insulating shielding layer to be stripped, and simultaneously to measure the depth of the horizontal tool device cutting into the cable.

5. A device for performing a cable insulation shielding layer stripping test according to claim 1, Features: The cable insulation shield stripping unit (4) comprises a second image recognition device, a rotating tool device, a rotating measuring device and an insulation shielding clamp device; The second image recognition device is electrically connected to the rotating tool device, the rotating measurement device, and the insulating shielding fixture device respectively; The second image recognition device automatically recognizes the first incision and the second incision of the cable and transmits them to the rotating tool device; The first incision is formed when the horizontal tool device cuts into the leftmost side of the cable insulation shielding layer and moves rightward to the rightmost side of the cable; The second incision is formed by rotating the cable clockwise using the cable reversing device, then using the horizontal tool device to move back to the leftmost side of the cable to cut into the insulating shielding layer and then moving rightward to the rightmost side of the cable line; The rotating tool device cuts into the space between the insulation shield and the insulation layer of the cable from the first incision position and rotates toward the second incision direction; The insulation shielding clamp device clamps the insulation shielding of the cut cable and the insulation layer and moves upward to perform a stripping operation.

6. A device for performing a cable insulation shielding layer stripping test according to claim 3, Features: The cable reversing device is used to rotate the cable line clockwise, and the rotation angle of the cable reversing device is 120°.

7. A stripping method for a cable insulation shielding layer stripping test, Features include: A device for performing a cable insulation shielding layer stripping test as claimed in any one of claims 1 to 6 is used, Perform the following steps: Step (1): connecting the control operation unit (1) to the cable clamp unit (2), the cable parallel cutting unit (3), and the cable insulation shield stripping unit (4) respectively, controlling the opening of the cable fixing device in the cable clamp unit (2) to open to the maximum and placing the cable on the cable fixing device, and then contracting and clamping the opening of the cable fixing device; Step (2): the first image recognition device in the cable parallel cutting unit (3) automatically recognizes the length of the cable and sends the recognized length information to the control operation unit (1), and the control operation unit (1) moves the horizontal knife device to the leftmost initial position of the cable; the second image recognition device in the cable insulation shield stripping unit (4) recognizes the insulation shield position and transmits it to the cable parallel cutting unit (3); Step (3): the cable parallel cutting unit (3) controls the horizontal tool device to cut into the insulation shield and move rightward to the rightmost side of the cable, thereby forming the first cut; The cable fixing device releases the fixed cable; the cable reversing device in the cable clamp unit (2) rotates the cable clockwise, and then the cable fixing device is used to contract and clamp the cable, and the horizontal tool device moves again to cut into the insulation shield at the leftmost side of the cable and moves rightward to the rightmost side of the cable, thereby forming a second incision; The second image recognition device in the cable insulation shield stripping unit (4) recognizes the first incision and the second incision of the cable and transmits them to the rotating tool device in the cable insulation shield stripping unit (4); The rotating tool device cuts into the space between the insulation shield and the insulation layer of the cable from the first incision position and rotates towards the second incision direction; Step (4): the insulation shielding clamp device in the cable insulation shielding stripping unit (4) extends into the space between the cut cable insulation shielding and the insulation layer, clamps and moves upward to start stripping, and finally strips out a 5 cm strip; Step (5): after completing step (3) and step (4), the cable fixing device releases the fixed cable, and then uses the cable reversing device to rotate the cable 120° clockwise; the cable fixing device contracts and fixes the cable; Repeat step (3) and step (4) twice to complete sample preparation.

8. A stripping method for a cable insulation shielding layer stripping test according to claim 7, Features include: The cable reversing device in step (3) rotates the cable line clockwise by a distance of 1 cm.

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