Wire and cable penetration test system and test method

Abstract

The present invention relates to the technical field of wire and cable testing, and in particular to a penetration test system and a test method for wire and cable. The penetration test system comprises a workbench, a linear track, an end fixing device, an end contact device, a supporting device, a piercing device and a pressure testing device. The end fixing device, the end contact device and the supporting device can be slidably arranged on the linear track. The piercing device and the pressure testing device are both arranged on the workbench and are located on both sides of the linear track. The supporting device is used for supporting and placing the cable to be tested, and the end fixing device is used for fixing one end of the cable to be tested. The present invention has multiple technical effects such as precise test positioning, safety and reliability, efficient testing, multifunctional application, precise contact, convenient operation and high reliability, and provides an efficient and reliable solution for cable testing.

Description

Technical Field

[0001] The present invention relates to the technical field of wire and cable testing, and in particular to a wire and cable penetration testing system and testing method. Background Art

[0002] As infrastructure products in the fields of power transmission and information transmission, wires and cables play a vital role in modern society. With the continuous advancement of science and technology, the manufacturing technology and materials of wires and cables are constantly innovating. The application of new conductor materials, insulation materials, shielding materials, and improvements in production processes have enabled wires and cables to have higher transmission efficiency, better anti-interference performance, and longer service life. With the development of the global economy and the acceleration of urbanization, the demand for wires and cables continues to increase. Especially in emerging fields such as new energy, electric vehicles, and 5G communications, higher requirements are placed on wires and cables, which has promoted the development of the wire and cable industry.

[0003] During the preparation of wires and cables, various tests need to be performed, among which the puncture conductivity test is to test the conductivity and puncture resistance of the cable after production. The existing test equipment has poor accuracy during the test and cannot be effectively positioned and fixed, which affects the test accuracy and stability. Therefore, a new design is needed for the existing wire and cable test. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a penetration test system for wires and cables with multiple technical effects such as accurate test positioning, safety and reliability, efficient testing, multi-functional application, precise contact, convenient operation and high reliability.

[0005] The technical solution adopted by the present invention is: a penetration test system for wires and cables, including a cable to be tested, the cable to be tested includes an inner conductor, an inner insulating layer, an outer conductor layer and an outer insulating layer arranged in sequence from the inside to the outside; the inner insulating layer is coated on the outside of the inner conductor by extrusion, the outer conductor layer is composed of multiple copper wires, the multiple copper wires are spirally wound on the outside of the inner insulating layer, and the outer insulating layer is coated on the outside of the outer conductor layer by extrusion; the penetration test system includes a workbench, a linear track, an end fixing device, an end contact device, a supporting device, a piercing device and a pressure testing device, the end fixing device, the end contact device and the supporting device can all be slidably arranged on the linear track, the piercing device and the pressure testing device are both arranged on the workbench and located on both sides of the linear track; the supporting device is used to support and place the cable to be tested, and the end fixing device is used to fix one end of the cable to be tested; the end contact device includes a contact clamping assembly, a contact sliding assembly and a conductive contact assembly, the contact clamping assembly is used to clamp and fix one end of the cable to be tested away from the end fixing device, and the contact sliding assembly can be slidably arranged on the linear track.

[0006] A further improvement to the above scheme is that the conductive contact component includes a conductive bracket, a fixed conductive sleeve, an outer conductive probe and an inner conductive probe, the conductive bracket is arranged on the contact sliding component, the fixed conductive sleeve is arranged on the conductive bracket, the outer conductive probe is used to contact the outer conductor layer, and the inner conductive probe is used to contact the inner conductor; the outer conductive probe and the inner conductive probe are both elastic probes, and a plurality of outer conductive probes are arranged, and the plurality of outer conductive probes are evenly distributed in an annular direction to form a ring to contact the annular outer conductor layer.

[0007] A further improvement to the above scheme is that the piercing device includes a piercing pressure component and a piercing pushing component, and the piercing pressure component and the piercing pushing component are arranged on both sides of the linear track opposite to each other; the piercing pressure component includes a piercing pressure bracket, a pressure driving electric cylinder and a pressure plate, the piercing pressure bracket is arranged on a workbench, the pressure driving electric cylinder is arranged on the piercing pressure bracket, and the pressure plate is arranged on the driving end of the pressure driving electric cylinder; the piercing pushing component includes a piercing pushing bracket, a piercing driving electric cylinder and a piercing steel needle, the piercing pushing bracket is arranged on the workbench, the piercing driving electric cylinder is arranged on the piercing pushing bracket, and the piercing steel needle is arranged at the driving end of the piercing driving electric cylinder.

[0008] A further improvement to the above scheme is that the piercing steel needle is a cross steel needle, and the piercing steel needle includes a tip portion, an insulating portion and a rear end portion which are arranged in sequence. During testing, the piercing steel needle is inserted into the cable under test, the tip portion contacts the inner conductor, and the rear end portion contacts the outer conductor layer.

[0009] A further improvement to the above scheme is that the workbench is provided with a positioning groove, which runs through the length direction of the workbench, the linear rail is arranged on the positioning groove, a plurality of movable sliders are arranged on the linear rail, and the end fixing device, the end contact device and the supporting device slide on the linear rail following the movable slider.

[0010] A further improvement to the above solution is that a locking handle is provided on the movable slider, and the locking handle is used to lock the movable slider on the linear track.

[0011] A further improvement to the above scheme is that the end fixing device includes a fixed clamping component, a fixed adjustment component and a fixed conductive component, the fixed adjustment component is arranged on the linear track, and the fixed conductive component is arranged on the fixed adjustment component.

[0012] A further improvement to the above scheme is that the fixed clamping assembly includes a fixed clamping sliding seat, a fixed clamping support frame, a fixed clamping drive seat and a fixed clamping claw, the fixed clamping sliding seat is arranged on one side of the workbench, the fixed clamping support frame is arranged on the fixed clamping sliding seat, the fixed clamping drive seat is arranged on the fixed clamping support frame, and the fixed clamping claw is arranged on the fixed clamping drive seat to clamp the cable under test.

[0013] A further improvement to the above scheme is that the fixed clamping claw is provided with a fixed clamping groove, and the fixed clamping groove is used for clamping the cable under test; the fixed adjustment component includes an adjustment bracket and a movable panel arranged on the adjustment bracket, and the adjustment bracket can be slidably arranged on a linear track.

[0014] A further improvement to the above scheme is that the fixed conductive component includes a fixed sleeve, a first contact probe and a second contact probe arranged on the movable panel, the fixed sleeve faces the fixed clamping groove, the first contact probe is used to contact the inner conductor, the second contact probe is used to contact the outer conductor layer, and the first contact probe and the second contact probe are both elastic probes.

[0015] A further improvement to the above scheme is that a plurality of second contact probes are provided, and the plurality of second contact probes are evenly distributed in an annular direction to form an annular contact structure for contacting the outer conductor layer; the end of the first contact probe is arranged in an arc shape, and the end of the second contact probe is arranged in a pointed shape.

[0016] A further improvement to the above scheme is that a plurality of first probe holes are arranged on the fixed sleeve, and the plurality of first probe holes are evenly distributed in a circumferential direction on the fixed sleeve, one end of the second contact probe is inserted into the first probe hole, and the other end extends toward the cable under test; the end of the second contact probe facing the cable under test is set as a pointed end.

[0017] A further improvement to the above scheme is that a plurality of second probe holes are arranged on the fixed conductive sleeve, and the plurality of second probe holes are evenly distributed in a circumferential direction on the fixed conductive sleeve, one end of the outer conductive probe is inserted into the second probe hole, and the other end extends toward the cable under test; the end of the outer conductive probe facing the cable under test is set as a pointed end.

[0018] A further improvement to the above scheme is that the contact clamping assembly includes a contact clamping sliding seat, a contact clamping support frame, a contact clamping drive seat and a contact clamping claw, the contact clamping sliding seat is arranged on one side of the workbench, the contact clamping support frame is arranged on the contact clamping sliding seat, the contact clamping drive seat is arranged on the contact clamping support frame, and the contact clamping claw is arranged on the contact clamping drive seat to clamp the cable under test.

[0019] A further improvement to the above scheme is that the supporting device includes a fixed connecting rod, a movable connecting rod and a supporting platform, the fixed connecting rod is arranged on a linear track, the movable connecting rod can be adjusted and moved on the fixed connecting rod, the supporting platform is arranged at the top end of the movable connecting rod, and the supporting platform is provided with an arc groove, and the arc groove is used to support the cable under test.

[0020] A further improvement to the above scheme is that the pressure testing device includes two groups of relatively arranged pressure supports, a pressure testing electric cylinder arranged on the pressure supports, and a pressure plate arranged on the pressure testing electric cylinder, and the pressure testing electric cylinder is provided with a pressure sensor; the two groups of the pressure testing electric cylinders are used to drive the pressure plate to clamp the two sides of the cable under test, so as to judge the pressure resistance of the cable under test through the pressure sensor.

[0021] A method for testing wires and cables, comprising the wire and cable penetration test system;

[0022] The test method is as follows: the cable to be tested is placed on a supporting device, and the two ends of the cable to be tested are clamped and fixed by contact clamping assemblies through end fixing devices respectively; then, a fixing sleeve is fitted on the cable to be tested through a conductive contact assembly, so that an outer conductive probe is in conductive contact with an outer conductor layer, and an inner conductive probe is in conductive contact with an inner conductor, so as to conductively connect the ends of the cable to be tested; then, a piercing steel needle is inserted into the conductor to be tested through the cooperation of a piercing pressure assembly and a piercing pushing assembly, and a pressure sensor is provided in the pressure-driven electric cylinder at this time, and the piercing pressure resistance of the cable to be tested is calculated according to the pressure in the pressure-driven electric cylinder and the sharpness of the piercing steel needle; when the piercing steel needle is inserted into the cable to be tested, the tip contacts the inner conductor, and the rear end contacts the outer conductor layer for power-on test.

[0023] The beneficial effects of the present invention are:

[0024] Compared with the existing wire and cable test, the present invention is used for the penetration test of wires and cables, and the tested cable has an inner conductor and an outer conductor layer, and an insulating layer is set to separate them. The penetration test system can achieve accurate positioning and stable support of the tested cable through the flexible sliding setting of the linear track and various components, ensuring the position accuracy and stability during the test. The design of the end fixing device and the end contact device can effectively fix one end of the tested cable, and the other end is separated from the fixing device by the contact clamping assembly, thereby ensuring the safety and reliability during the test and avoiding the occurrence of unexpected situations. The piercing device and the pressure testing device are arranged on the workbench and are located on both sides of the linear track. The cable can be pierced and pressure tested at the same time, which improves the test efficiency and work efficiency. The present invention can not only perform piercing tests, but also pressure tests, has multifunctional applicability, and is suitable for cable testing requirements of different sizes. The contact sliding assembly of the end contact device can be slidably arranged on the linear track to ensure the contact accuracy of the tested cable and improve the accuracy and reliability of the test data. The present invention has multiple technical effects such as accurate test positioning, safety and reliability, efficient testing, multifunctional application, precise contact, convenient operation and high reliability, and provides an efficient and reliable solution for cable testing.

[0025] The conductive contact assembly can effectively achieve efficient conductive contact between the outer conductor layer and the inner conductor of the cable under test through the design of the conductive bracket, the fixed conductive sleeve, the outer conductive probe and the inner conductive probe, thereby ensuring the accuracy and reliability of the test data. The outer conductive probe is provided with multiple and evenly distributed in a ring shape in the annular direction, which can achieve multi-point contact with the outer conductor layer, improve the stability and reliability of the contact, and avoid the test error caused by single-point contact. The elastic probe design enables the outer conductive probe and the inner conductive probe to adapt to cables of different sizes and shapes, and has strong versatility and applicability, and can meet the testing requirements of different types of cables. The conductive probe adopts an elastic design, which can maintain a stable contact state during the test process, is not easily affected by external vibration or interference, and improves the stability and accuracy of the test data. The use of the aforementioned puncture test system provides an efficient and reliable contact solution for cable testing through multiple technical effects such as efficient conduction, multi-point contact, wide applicability, strong stability and convenient maintenance, ensuring the accuracy and stability of the test data.

[0026] The piercing device is arranged on both sides of the linear track by the piercing pressure component and the piercing push component. Through the driving of the pressure-driven electric cylinder and the piercing drive electric cylinder, the precise piercing operation of the tested cable can be realized, ensuring the accuracy and stability of the piercing. The piercing pressure bracket and the piercing push bracket are arranged on the workbench, which can firmly support the piercing device and ensure the stability and safety during the piercing process. The piercing pressure component can achieve the pressure on the tested cable through the design of the pressure-driven electric cylinder and the pressure plate, and the piercing push component can achieve the piercing and pushing of the cable through the design of the piercing drive electric cylinder and the piercing steel needle, thereby improving the efficiency and stability of the piercing. The piercing pressure component and the piercing push component are driven by the pressure-driven electric cylinder and the piercing drive electric cylinder respectively, which can realize multi-directional piercing operations and increase the flexibility and applicability of the piercing. Through the design of the piercing pressure component and the piercing push component, the safety and reliability of the piercing operation can be guaranteed, and the safety hazards caused by unexpected situations during the piercing process can be avoided. The piercing device provides an efficient, safe and reliable solution for cable penetration testing through multiple technical effects such as precise piercing, stable support, efficient piercing, multi-directional driving and safety and reliability, ensuring the accuracy and stability of test data.

[0027] The piercing needle adopts the cross-shaped tip design, which can be accurately inserted into the cable under test to achieve contact with the inner conductor, ensuring the accuracy and stability of the piercing. The rear end of the cross-shaped needle contacts the outer conductor layer, and through the design of its insulation part, it can reliably achieve contact with the outer conductor layer and ensure the stability and reliability of conduction. The design of the cross-shaped needle is suitable for testing cables of various sizes. It has strong versatility and applicability, and meets the testing requirements of different types of cables. The setting of the insulation part can effectively protect the inner conductor, avoid damage to the inner conductor caused by the piercing operation, and extend the service life of the cable under test.

[0028] The testing method for wires and cables penetrates the piercing steel needle into the conductor under test by piercing the pressure component and the piercing pushing component, and calculates the piercing pressure resistance of the cable under test in combination with the pressure in the pressure-driven electric cylinder and the sharpness of the piercing steel needle, thereby realizing the test and evaluation of the cable piercing pressure resistance. After the piercing steel needle is inserted into the cable under test, the power-on test is performed by contacting the tip with the inner conductor and the rear end with the outer conductor layer, thereby ensuring the power-on performance of the cable under test. A pressure sensor is provided in the pressure-driven electric cylinder, which can monitor the pressure change in real time, and obtain relevant data of the piercing pressure resistance test in combination with the sharpness of the piercing steel needle, thereby providing data support for the accuracy of the test results. The testing method for wires and cables realizes the conductive connection, piercing pressure resistance test and power-on test of the cable through the coordinated use of multiple steps and components, and has the technical effects of comprehensively evaluating the cable performance, high data accuracy and clear and definite test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the penetration test system of the wire and cable of the present invention;

[0030] Figure 2 for Figure 1 A three-dimensional schematic diagram of the penetration test system for wires and cables from another perspective;

[0031] Figure 3 for Figure 1 A schematic diagram of a partial structure of a penetration test system for wires and cables;

[0032] Figure 4 for Figure 1 A schematic diagram of a partial structure of a penetration test system for wires and cables;

[0033] Figure 5 for Figure 1 A schematic diagram of the structure of the support device of the penetration test system of the wire and cable;

[0034] Figure 6 for Figure 1 A schematic diagram of the structure of a fixed conductive component of a penetration test system for wires and cables;

[0035] Figure 7 for Figure 1 A schematic diagram of the structure of the conductive contact assembly of the penetration test system of the wire and cable;

[0036] Figure 8 for Figure 1 A schematic diagram of the structure of the conductive contact assembly of the penetration test system of the wire and cable;

[0037] Fig. 9 for Figure 1 A schematic diagram of the structure of the piercing and pushing assembly of the piercing test system for electric wires and cables;

[0038] Fig.10 for Figure 1 A schematic diagram of the structure of the piercing device of the piercing test system for electric wires and cables;

[0039] Fig.11 for Figure 1 A schematic diagram of the structure of a pressure test device for a penetration test system of a wire and cable;

[0040] Fig.12 for Figure 1 Schematic diagram of the structure of the piercing needle of the penetration test system for wires and cables.

[0041] Description of reference numerals: tested cable 10, inner conductor 101, inner insulating layer 102, outer conductor layer 103, outer insulating layer 104;

[0042] Workbench 1, positioning groove 11;

[0043] Linear track 2, moving slider 21, locking handle 22;

[0044] The end fixing device 3, the fixed clamping assembly 31, the fixed clamping sliding seat 311, the fixed clamping support frame 312, the fixed clamping driving seat 313, the fixed clamping claw 314, the fixed clamping groove 3141, the fixed adjustment assembly 32, the adjustment bracket 321, the movable panel 322, the fixed conductive assembly 33, the fixed sleeve 331, the first contact probe 332, and the second contact probe 333;

[0045] End contact device 4, contact clamping assembly 41, contact clamping sliding seat 411, contact clamping support frame 412, contact clamping driving seat 413, contact clamping claw 414, contact sliding assembly 42, conductive contact assembly 43, conductive bracket 431, fixed conductive sleeve 432, outer conductive probe 433, inner conductive probe 434;

[0046] Support device 5, fixed connecting rod 51, movable connecting rod 52, supporting platform 53, arc groove 531;

[0047] Piercing device 6, piercing pressure component 61, piercing pressure support 611, pressure driving electric cylinder 612, pressure plate 613, piercing pushing component 62, piercing pushing support 621, piercing driving electric cylinder 622, piercing steel needle 623, tip 6231, insulating part 6232, rear end 6233;

[0048] Pressure testing device 7, pressure support 71, pressure testing electric cylinder 72, and pressure plate 73. DETAILED DESCRIPTION

[0049] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0050] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Figure 1 to Figure 12As shown, in one embodiment of the present invention, a penetration test system for wires and cables is involved, including a cable to be tested 10, wherein the cable to be tested 10 includes an inner conductor 101, an inner insulating layer 102, an outer conductor layer 103 and an outer insulating layer 104 arranged in sequence from the inside to the outside; the inner insulating layer 102 is coated on the outside of the inner conductor 101 by extrusion, the outer conductor layer 103 is composed of multiple copper wires, the multiple copper wires are spirally wound on the outside of the inner insulating layer 102, and the outer insulating layer 104 is coated on the outside of the outer conductor layer 103 by extrusion; the penetration test system includes a workbench 1, a linear track 2, an end fixing device 3, an end contact device 4, a support device 5, a piercing device 6 and a pressure testing device 7, the end fixing device 3, the end contact device 4 and the supporting device 5 can all be slidably arranged on the linear track 2, the piercing device 6 and the pressure testing device 7 are both arranged on the workbench 1 and are located on both sides of the linear track 2; the supporting device 5 is used to support and place the cable 10 under test, and the end fixing device 3 is used to fix one end of the cable 10 under test; the end contact device 4 includes a contact clamping component 41, a contact sliding component 42 and a conductive contact component 43, the contact clamping component 41 is used to clamp and fix the end of the cable 10 under test away from the end fixing device 3, and the contact sliding component 42 can be slidably arranged on the linear track 2. This embodiment is used for the piercing test of wires and cables, and the cable 10 under test has an inner conductor 101 and an outer conductor layer 103, and an insulating layer is arranged to separate them. The piercing test system can achieve accurate positioning and stable support of the cable 10 under test through the flexible sliding arrangement of the linear track 2 and various components, ensuring the position accuracy and stability during the test. The design of the end fixing device 3 and the end contact device 4 can effectively fix one end of the tested cable 10, and move the other end away from the fixing device through the contact clamping assembly 41, thereby ensuring the safety and reliability during the test and avoiding the occurrence of unexpected situations. The piercing device 6 and the pressure testing device 7 are arranged on the workbench 1 and are located on both sides of the linear track 2. The cable can be pierced and pressure tested at the same time, which improves the test efficiency and work efficiency. The present invention can not only perform piercing tests, but also pressure tests, has multifunctional applicability, and is suitable for testing requirements of cables of different sizes. The contact sliding assembly 42 of the end contact device 4 can be slidably arranged on the linear track 2 to ensure the contact accuracy of the tested cable 10, and improve the accuracy and reliability of the test data. The present invention has multiple technical effects such as accurate test positioning, safety and reliability, efficient testing, multifunctional application, accurate contact, convenient operation and high reliability, and provides an efficient and reliable solution for cable testing.

[0052] See also Figure 4~Figure 8As shown, the conductive contact assembly 43 includes a conductive support 431, a fixed conductive sleeve 432, an outer conductive probe 433 and an inner conductive probe 434. The conductive support 431 is arranged on the contact sliding assembly 42, the fixed conductive sleeve 432 is arranged on the conductive support 431, the outer conductive probe 433 is used to contact the outer conductor layer 103, and the inner conductive probe 434 is used to contact the inner conductor 101; the outer conductive probe 433 and the inner conductive probe 434 are both elastic probes, and a plurality of the outer conductive probes 433 are arranged, and the plurality of outer conductive probes 433 are evenly distributed in the annular direction to form an annular shape to contact the annular outer conductor layer 103. In the above embodiment, the conductive contact assembly 43 can effectively achieve efficient conductive contact between the outer conductor layer 103 and the inner conductor 101 of the tested cable 10 through the design of the conductive support 431, the fixed conductive sleeve 432, the outer conductive probe 433 and the inner conductive probe 434, thereby ensuring the accuracy and reliability of the test data. The outer conductive probe 433 is provided with multiple and evenly distributed in the annular direction to form a ring shape, which can achieve multi-point contact with the outer conductor layer 103, improve the stability and reliability of the contact, and avoid the test error caused by single-point contact. The elastic probe design enables the outer conductive probe 433 and the inner conductive probe 434 to adapt to cables of different sizes and shapes, and has strong versatility and applicability, and can meet the testing requirements of different types of cables. The conductive probe adopts an elastic design, which can maintain a stable contact state during the test process, is not easily affected by external vibration or interference, and improves the stability and accuracy of the test data. The use of the aforementioned puncture test system provides an efficient and reliable contact solution for cable testing through multiple technical effects such as efficient conductivity, multi-point contact, wide applicability, strong stability and convenient maintenance, ensuring the accuracy and stability of the test data.

[0053] See also Figure 9~Figure 10As shown, the piercing device 6 includes a piercing pressure component 61 and a piercing pushing component 62, and the piercing pressure component 61 and the piercing pushing component 62 are arranged on both sides of the linear track 2 opposite to each other; the piercing pressure component 61 includes a piercing pressure bracket 611, a pressure driving electric cylinder 612 and a pressure plate 613, the piercing pressure bracket 611 is arranged on the workbench 1, the pressure driving electric cylinder 612 is arranged on the piercing pressure bracket 611, and the pressure plate 613 is arranged on the driving end of the pressure driving electric cylinder 612; the piercing pushing component 62 includes a piercing pushing bracket 621, a piercing driving electric cylinder 622 and a piercing steel needle 623, the piercing pushing bracket 621 is arranged on the workbench 1, the piercing driving electric cylinder 622 is arranged on the piercing pushing bracket 621, and the piercing steel needle 623 is arranged on the driving end of the piercing driving electric cylinder 622. In the above embodiment, the piercing device 6 is relatively arranged on both sides of the linear track 2 through the piercing pressure component 61 and the piercing pushing component 62. Through the drive of the pressure-driven electric cylinder 612 and the piercing driving electric cylinder 622, the precise piercing operation of the tested cable 10 can be achieved, ensuring the accuracy and stability of the piercing. The piercing pressure bracket 611 and the piercing pushing bracket 621 are arranged on the workbench 1, which can stably support the piercing device 6 and ensure the stability and safety during the piercing process. The piercing pressure component 61 can achieve the pressure on the tested cable 10 through the design of the pressure-driven electric cylinder 612 and the pressure plate 613, and the piercing pushing component 62 can achieve the piercing and pushing of the cable through the design of the piercing driving electric cylinder 622 and the piercing steel needle 623, thereby improving the efficiency and stability of the piercing. The piercing pressure component 61 and the piercing push component 62 are driven by the pressure-driven electric cylinder 612 and the piercing drive electric cylinder 622, respectively, which can realize multi-directional piercing operations and increase the flexibility and applicability of piercing. Through the design of the piercing pressure component 61 and the piercing push component 62, the safety and reliability of the piercing operation can be guaranteed, and the potential safety hazards caused by unexpected situations during the piercing process can be avoided. The piercing device 6 provides an efficient, safe and reliable solution for cable piercing testing through multiple technical effects such as precise piercing, stable support, efficient piercing, multi-directional driving and safety and reliability, ensuring the accuracy and stability of the test data.

[0054] See also Fig.12As shown, the piercing steel needle 623 is a cross steel needle, and the piercing steel needle 623 includes a tip portion 6231, an insulating portion 6232 and a rear end portion 6233 arranged in sequence. During the test, the piercing steel needle 623 is inserted into the cable 10 under test, and the tip portion 6231 contacts the inner conductor 101, and the rear end portion 6233 contacts the outer conductor layer 103. In the above embodiment, the piercing steel needle 623 adopts the tip portion 6231 of the cross steel needle design, which can be accurately inserted into the cable 10 under test, and achieve contact with the inner conductor 101, ensuring the accuracy and stability of the piercing. The rear end portion 6233 of the cross steel needle contacts the outer conductor layer 103, and through the design of its insulating portion 6232, it can reliably achieve contact with the outer conductor layer 103, and ensure the stability and reliability of conduction. The design of the cross steel needle is suitable for testing cables of various sizes, has strong versatility and applicability, and meets the testing requirements of different types of cables. By providing the insulating portion 6232 , the inner conductor 101 can be effectively protected, thereby avoiding damage to the inner conductor 101 caused by the piercing operation, and extending the service life of the tested cable 10 .

[0055] The workbench 1 is provided with a positioning groove 11, and the positioning groove 11 runs through the length direction of the workbench 1. The linear track 2 is arranged on the positioning groove 11. A plurality of moving sliders 21 are arranged on the linear track 2. The end fixing device 3, the end contact device 4 and the supporting device 5 follow the moving slider 21 to slide on the linear track 2. Specifically, a locking handle 22 is arranged on the moving slider 21, and the locking handle 22 is used to lock the moving slider 21 on the linear track 2. In this embodiment, through the arrangement of the positioning groove 11 and the linear track 2, it is possible to accurately position the various components of the puncture test system, thereby ensuring the accuracy and stability of the position during the test. A plurality of moving sliders 21 are arranged on the linear track 2, and the end fixing device 3, the end contact device 4 and the supporting device 5 can flexibly slide on the linear track 2 following the moving slider 21, thereby realizing the convenient movement and adjustment of the system components, and improving the flexibility and applicability of the system. A locking handle 22 is provided on the movable slider 21. By using the locking handle 22, the movable slider 21 can be firmly locked on the linear rail 2, ensuring the stable fixation of the system components at a specific position and avoiding test errors caused by vibration or accidental movement.

[0056] The end fixing device 3 includes a fixed clamping assembly 31, a fixed adjustment assembly 32 and a fixed conductive assembly 33. The fixed adjustment assembly 32 is arranged on the linear track 2, and the fixed conductive assembly 33 is arranged on the fixed adjustment assembly 32. The fixed clamping assembly 31 includes a fixed clamping sliding seat 311, a fixed clamping support frame 312, a fixed clamping drive seat 313 and a fixed clamping claw 314. The fixed clamping sliding seat 311 is arranged on one side of the workbench 1, the fixed clamping support frame 312 is arranged on the fixed clamping sliding seat 311, the fixed clamping drive seat 313 is arranged on the fixed clamping support frame 312, and the fixed clamping claw 314 is arranged on the fixed clamping drive seat 313 to clamp the cable 10 under test. Specifically, the fixed clamping claw 314 is provided with a fixed clamping groove 3141, and the fixed clamping groove 3141 is used to clamp the cable 10 under test; the fixed adjustment component 32 includes an adjustment bracket 321 and a movable panel 322 arranged on the adjustment bracket 321, and the adjustment bracket 321 can be slidably arranged on the linear track 2. In this embodiment, through the design of the fixed clamping component 31, the cable 10 under test can be accurately clamped, ensuring the stable fixation of the cable during the test process, and improving the accuracy and reliability of the test. The fixed adjustment component 32 includes an adjustment bracket 321 and a movable panel 322, and the adjustment bracket 321 can be slidably arranged on the linear track 2, which can realize flexible adjustment and fine adjustment of the fixed position to adapt to cables 10 under test of different sizes and shapes. The setting of the fixed conductive component 33 can ensure that the cable maintains good conductive contact while being fixed and clamped, avoiding the influence of the fixing device on the conductive performance of the cable. By setting the fixed clamping claw 314 and designing the fixed clamping groove 3141 , the stable fixation of the cable can be ensured, and the test error caused by looseness or displacement can be avoided.

[0057] The fixed conductive component 33 includes a fixed sleeve 331, a first contact probe 332 and a second contact probe 333 arranged on the movable panel 322, the fixed sleeve 331 faces the fixed clamping groove 3141, the first contact probe 332 is used to contact the inner conductor 101, the second contact probe 333 is used to contact the outer conductor layer 103, and the first contact probe 332 and the second contact probe 333 are both elastic probes. In this embodiment, through the design of the fixed sleeve 331, the first contact probe 332 and the second contact probe 333, the inner conductor 101 and the outer conductor layer 103 can be contacted respectively, ensuring the precise conductive contact of different parts during the test process, and improving the accuracy and reliability of the test. The design of the elastic probe makes the fixed conductive component 33 suitable for cables of different sizes and shapes, has strong versatility and applicability, and meets the testing requirements of different types of cables. Through the design of the elastic probe, the inner conductor 101 and the outer conductor layer 103 can be effectively protected, the damage to the cable conductor caused by the piercing operation is avoided, and the service life of the tested cable 10 is extended.

[0058] There are multiple second contact probes 333, which are evenly distributed in the annular direction to form an annular contact structure for contacting the outer conductor layer 103; the end of the first contact probe 332 is set in an arc shape, and the end of the second contact probe 333 is set as a tip. Specifically, the fixed sleeve 331 is provided with multiple first probe holes, and the multiple first probe holes are evenly distributed in the annular direction on the fixed sleeve 331. One end of the second contact probe 333 is inserted into the first probe hole, and the other end extends toward the cable under test 10; the end of the second contact probe 333 facing the cable under test 10 is set as a tip. The fixed conductive sleeve 432 is provided with multiple second probe holes, and the multiple second probe holes are evenly distributed in the annular direction on the fixed conductor sleeve. One end of the outer conductive probe 433 is inserted into the second probe hole, and the other end extends toward the cable under test 10; the end of the outer conductive probe 433 facing the cable under test 10 is set as a tip. In this embodiment, by forming an annular contact structure by circumferentially uniform distribution, multiple second contact probes 333 can uniformly contact the outer conductor layer 103, ensuring uniform conductive contact with the outer conductor during the test, and improving the accuracy and reliability of the test. By setting multiple second contact probes 333 and multiple second probe holes, multi-point contact with the outer conductor layer 103 is achieved, increasing the stability and reliability of the conductive contact. The arc-shaped end of the first contact probe 332 and the tip-shaped end of the second contact probe 333 can adapt to cables of different shapes and sizes, and have strong versatility and applicability. The setting of multiple second contact probes 333 and the tip design can ensure stable conductive contact with the outer conductor layer 103, avoiding test errors caused by poor conductivity. Through multi-point uniform contact and tip design, the outer conductor layer 103 can be effectively protected, avoiding damage to the outer conductor caused by the piercing operation, and extending the service life of the tested cable 10.

[0059] The contact clamping assembly 41 includes a contact clamping sliding seat 411, a contact clamping support frame 412, a contact clamping drive seat 413 and a contact clamping claw 414, wherein the contact clamping sliding seat 411 is arranged on one side of the workbench 1, the contact clamping support frame 412 is arranged on the contact clamping sliding seat 411, the contact clamping drive seat 413 is arranged on the contact clamping support frame 412, and the contact clamping claw 414 is arranged on the contact clamping drive seat 413 to clamp the tested cable 10. In this embodiment, through the design of the contact clamping assembly 41, the tested cable 10 can be stably clamped, ensuring the stable fixation of the cable during the test process, and improving the accuracy and reliability of the test. The structural design of the contact clamping sliding seat 411, the contact clamping support frame 412 and the contact clamping drive seat 413 allows the clamping position to be flexibly adjusted and fine-tuned to adapt to the tested cables 10 of different sizes and shapes. The arrangement of the contact clamping claw 414 can ensure stable clamping of the cable and avoid test errors caused by looseness or displacement.

[0060] The supporting device 5 includes a fixed connecting rod 51, a movable connecting rod 52 and a supporting platform 53, wherein the fixed connecting rod 51 is arranged on the linear track 2, the movable connecting rod 52 is adjustable and movable on the fixed connecting rod 51, and the supporting platform 53 is arranged at the top of the movable connecting rod 52, and the supporting platform 53 is provided with an arc groove 531, and the arc groove 531 is used to support the cable 10 under test. In this embodiment, through the design of the fixed connecting rod 51, the movable connecting rod 52 and the supporting platform 53, it is possible to achieve a stable support for the cable 10 under test, ensure the stable position of the cable 10 under test during the test, and improve the accuracy and reliability of the test. The adjustable design of the movable connecting rod 52 makes it possible to flexibly adjust the support position as needed to adapt to the cables 10 under test of different sizes and shapes. The supporting platform 53 is provided with an arc groove 531 for supporting the cable 10 under test, which can effectively support and place the cable 10 under test, and ensure the smooth progress of the test.

[0061] See also Fig.11As shown, the pressure test device 7 includes two groups of relatively arranged pressure brackets 71, a pressure test electric cylinder 72 arranged on the pressure bracket 71, and a pressure plate 73 arranged on the pressure test electric cylinder 72, wherein the pressure test electric cylinder 72 is provided with a pressure sensor; the two groups of the pressure test electric cylinder 72 are used to drive the pressure plate 73 to clamp the two sides of the tested cable 10, so as to judge the pressure resistance of the tested cable 10 through the pressure sensor. In this embodiment, through the two groups of relatively arranged pressure brackets 71, the pressure test electric cylinder 72 and the pressure plate 73, the double-sided clamping of the tested cable 10 can be achieved, and the pressure resistance of the tested cable 10 can be accurately tested by the pressure sensor, thereby ensuring the accuracy and reliability of the test results. By clamping the tested cable 10 on both sides and testing it with the pressure sensor, the pressure resistance performance of the tested cable 10 can be comprehensively evaluated, providing an important reference for the safe and reliable operation of the cable. The design of the pressure test electric cylinder 72 allows the clamping pressure to be flexibly adjusted as needed to adapt to the tested cables 10 of different specifications and materials, thereby increasing the applicability and flexibility of the test. The pressure test electric cylinder 72 is provided with a pressure sensor, which can collect pressure data in real time, provide objective test results, and provide data support for further analysis and evaluation.

[0062] See also Figure 1 to Figure 12As shown, a method for testing wires and cables is shown, the tested cable 10 is placed on a supporting device 5, and the two ends of the tested cable 10 are clamped and fixed by the end fixing device 3 contacting the clamping assembly 41, and then the fixing sleeve 331 is matched on the tested cable 10 through the conductive contact assembly 43, so that the outer conductive probe 433 is in conductive contact with the outer conductor layer 103, and the inner conductive probe 434 is in conductive contact with the inner conductor 101, so as to make conductive connection between the ends of the tested cable 10; then, the tested cable 10 is connected to the conductive contact assembly 43 by piercing the tested cable 10. The pressure assembly 61 and the piercing and pushing assembly 62 cooperate to pierce the piercing steel needle 623 into the conductor under test. At this time, a pressure sensor is provided in the pressure-driven electric cylinder 612. The piercing pressure resistance of the tested cable 10 is calculated according to the pressure in the pressure-driven electric cylinder 612 and the sharpness of the piercing steel needle 623. When the piercing steel needle 623 is inserted into the tested cable 10, the tip 6231 contacts the inner conductor 101, and the rear end 6233 contacts the outer conductor layer 103 for power-on testing. In this embodiment, the conductive connection of the end of the tested cable 10 is achieved through the end fixing device 3, the clamping assembly and the conductive contact assembly 43, ensuring stable conductive contact between the inner and outer conductors and the probe. The piercing steel needle 623 is inserted into the conductor under test by piercing the pressure component 61 and the piercing pushing component 62, and the piercing pressure resistance of the cable 10 under test is calculated in combination with the pressure in the pressure-driven electric cylinder 612 and the sharpness of the piercing steel needle 623, thereby realizing the test and evaluation of the cable piercing pressure resistance. After the piercing steel needle 623 is inserted into the cable under test 10, the power-on test is performed by contacting the tip 6231 with the inner conductor 101 and the rear end 6233 with the outer conductor layer 103, thereby ensuring the power-on performance of the cable 10 under test. A pressure sensor is provided in the pressure-driven electric cylinder 612, which can monitor the pressure changes in real time, and obtain relevant data of the piercing pressure resistance test in combination with the sharpness of the piercing steel needle 623, thereby providing data support for the accuracy of the test results. The wire and cable testing method achieves conductive connection, puncture pressure resistance test and power-on test of the cable through the coordinated use of multiple steps and components. It has technical effects such as comprehensive evaluation of cable performance, high data accuracy and clear test process.

[0063] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A wire and cable penetration test system, characterized in that: The device comprises a cable to be tested, wherein the cable to be tested comprises an inner conductor, an inner insulating layer, an outer conductor layer and an outer insulating layer arranged in sequence from the inside to the outside; the inner insulating layer is coated on the outside of the inner conductor by extrusion, the outer conductor layer is composed of multiple copper wires, the multiple copper wires are spirally wound on the outside of the inner insulating layer, and the outer insulating layer is coated on the outside of the outer conductor layer by extrusion; The puncture test system comprises a workbench, a linear track, an end fixing device, an end contact device, a supporting device, a puncture device and a pressure test device, wherein the end fixing device, the end contact device and the supporting device can be slidably arranged on the linear track, and the puncture device and the pressure test device are both arranged on the workbench and located on both sides of the linear track; the supporting device is used for supporting and placing the cable under test, and the end fixing device is used for fixing one end of the cable under test; the end contact device comprises a contact clamping assembly, a contact sliding assembly and a conductive contact assembly, and the contact clamping assembly is used for clamping and fixing one end of the cable under test away from the end fixing device, and the contact sliding assembly can be slidably arranged on the linear track; The conductive contact assembly comprises a conductive support, a fixed conductive sleeve, an outer conductive probe and an inner conductive probe, wherein the conductive support is arranged on the contact sliding assembly, the fixed conductive sleeve is arranged on the conductive support, the outer conductive probe is used to contact the outer conductor layer, and the inner conductive probe is used to contact the inner conductor; both the outer conductive probe and the inner conductive probe are elastic probes, and a plurality of the outer conductive probes are arranged, and the plurality of the outer conductive probes are evenly distributed in an annular direction to form an annular shape to contact the annular outer conductor layer; The piercing device comprises a piercing pressure component and a piercing pushing component, and the piercing pressure component and the piercing pushing component are arranged on both sides of the linear track relatively; the piercing pressure component comprises a piercing pressure bracket, a pressure-driven electric cylinder and a pressure plate, the piercing pressure bracket is arranged on a workbench, the pressure-driven electric cylinder is arranged on the piercing pressure bracket, and the pressure plate is arranged on the driving end of the pressure-driven electric cylinder; the piercing pushing component comprises a piercing pushing bracket, a piercing driving electric cylinder and a piercing steel needle, the piercing pushing bracket is arranged on the workbench, the piercing driving electric cylinder is arranged on the piercing pushing bracket, and the piercing steel needle is arranged on the driving end of the piercing driving electric cylinder; The piercing steel needle is a cross steel needle, which includes a tip portion, an insulating portion and a rear end portion which are arranged in sequence. During testing, the piercing steel needle is inserted into the cable under test, the tip portion contacts the inner conductor, and the rear end portion contacts the outer conductor layer.

2. The wire and cable penetration test system according to claim 1, characterized in that: The workbench is provided with a positioning groove, which runs through the length direction of the workbench, the linear track is arranged on the positioning groove, a plurality of movable sliders are arranged on the linear track, and the end fixing device, the end contact device and the supporting device slide on the linear track following the movable sliders; The movable slider is provided with a locking handle, and the locking handle is used to lock the movable slider on the linear track.

3. The wire and cable penetration test system according to claim 1, characterized in that: The end fixing device comprises a fixed clamping component, a fixed adjustment component and a fixed conductive component, wherein the fixed adjustment component is arranged on the linear track, and the fixed conductive component is arranged on the fixed adjustment component; The fixed clamping assembly includes a fixed clamping sliding seat, a fixed clamping support frame, a fixed clamping drive seat and a fixed clamping claw. The fixed clamping sliding seat is arranged on one side of the workbench, the fixed clamping support frame is arranged on the fixed clamping sliding seat, the fixed clamping drive seat is arranged on the fixed clamping support frame, and the fixed clamping claw is arranged on the fixed clamping drive seat to clamp the cable under test.

4. The wire and cable penetration test system according to claim 3, characterized in that: The fixed clamping claw is provided with a fixed clamping groove, and the fixed clamping groove is used for clamping the tested cable; the fixed adjustment component includes an adjustment bracket and a movable panel arranged on the adjustment bracket, and the adjustment bracket can be slidably arranged on the linear track; The fixed conductive component includes a fixed sleeve, a first contact probe and a second contact probe arranged on the movable panel, the fixed sleeve faces the fixed clamping groove, the first contact probe is used to contact the inner conductor, the second contact probe is used to contact the outer conductor layer, and the first contact probe and the second contact probe are both elastic probes.

5. The wire and cable penetration test system according to claim 4, characterized in that: There are multiple second contact probes, which are evenly distributed in an annular direction to form an annular contact structure for contacting the outer conductor layer; the end of the first contact probe is arranged in an arc shape, and the end of the second contact probe is arranged in a pointed shape.

6. The wire and cable penetration test system according to claim 5, characterized in that: The fixed sleeve is provided with a plurality of first probe holes, which are evenly distributed in a circumferential direction on the fixed sleeve, one end of the second contact probe is inserted into the first probe hole, and the other end extends toward the cable under test; The end of the second contact probe facing the tested cable is set as a pointed end; The fixed conductive sleeve is provided with a plurality of second probe holes, which are evenly distributed in a circular direction on the fixed conductive sleeve. One end of the outer conductive probe is inserted into the second probe hole, and the other end extends toward the cable under test. The end of the outer conductive probe facing the cable under test is a pointed end.

7. The wire and cable penetration test system according to claim 1, characterized in that: The contact clamping assembly includes a contact clamping sliding seat, a contact clamping support frame, a contact clamping drive seat and a contact clamping claw. The contact clamping sliding seat is arranged on one side of the workbench, the contact clamping support frame is arranged on the contact clamping sliding seat, the contact clamping drive seat is arranged on the contact clamping support frame, and the contact clamping claw is arranged on the contact clamping drive seat to clamp the cable under test.

8. The wire and cable penetration test system according to claim 1, characterized in that: The supporting device includes a fixed connecting rod, a movable connecting rod and a supporting platform. The fixed connecting rod is arranged on a linear track. The movable connecting rod can be adjusted and moved on the fixed connecting rod. The supporting platform is arranged on the top end of the movable connecting rod. The supporting platform is provided with an arc groove, and the arc groove is used to support the cable to be tested.

9. The wire and cable penetration test system according to claim 1, characterized in that: The pressure testing device includes two groups of relatively arranged pressure supports, a pressure testing electric cylinder arranged on the pressure supports, and a pressure plate arranged on the pressure testing electric cylinder, wherein the pressure testing electric cylinder is provided with a pressure sensor; the two groups of the pressure testing electric cylinders are used to drive the pressure plate to clamp the two sides of the cable under test so as to judge the pressure resistance of the cable under test through the pressure sensor.

10. A method for testing electric wires and cables, characterized in that: A wire and cable penetration test system comprising any one of claims 1 to 9; The test method is as follows: the cable to be tested is placed on a supporting device, and the two ends of the cable to be tested are clamped and fixed by contact clamping assemblies through end fixing devices respectively; then, a fixing sleeve is fitted on the cable to be tested through a conductive contact assembly, so that an outer conductive probe is in conductive contact with an outer conductor layer, and an inner conductive probe is in conductive contact with an inner conductor, so as to conductively connect the ends of the cable to be tested; then, a piercing steel needle is inserted into the conductor to be tested through the cooperation of a piercing pressure assembly and a piercing pushing assembly, and a pressure sensor is provided in the pressure-driven electric cylinder at this time, and the piercing pressure resistance of the cable to be tested is calculated according to the pressure in the pressure-driven electric cylinder and the sharpness of the piercing steel needle; when the piercing steel needle is inserted into the cable to be tested, the tip contacts the inner conductor, and the rear end contacts the outer conductor layer for power-on test.

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