An automatic thickness detection device for cables to be tested

Abstract

The present invention relates to an automatic thickness detection device for a network cable to be inspected in the field of cable detection technology, comprising: a detection box, a central control console is fixedly installed on the top of the detection box, a tensioning assembly is arranged at the bottom of the detection box, and two centering clamping assemblies for clamping the cable sheath are arranged on the top of the tensioning assembly; a displacement assembly, the displacement assembly is installed on the top of the detection box; a thickness detection assembly, the thickness detection assembly is installed at the bottom of the moving end of the displacement assembly; a coupling agent application assembly, the coupling agent application assembly is installed on one side of the thickness detection assembly. The present invention realizes the function of ultrasonic detection of the thickness of the cable sheath, drives the ultrasonic sensor probe to present the phenomenon of continuous contraction and release, so that the ultrasonic sensor probe is attached to the surface of the cable sheath in an equidistant form, forming an equidistant and different position thickness detection effect, which is convenient for detecting multiple positions of the cable sheath and enhancing the representativeness of the detection data.

Description

Technical Field

[0001] The invention relates to the technical field of cable detection, and in particular discloses an automatic thickness detection device for a distribution network cable to be detected. Background Art

[0002] In the whole system of power operation, distribution cable is a very important component. It has a very important position and role in any level of distribution network. Whether the quality of distribution cable in the distribution system is up to standard will be directly related to whether the power transmission can ensure high quality and high stability. Therefore, special attention should be paid to safety, so it is necessary to carry out various tests on the cable. The test items mainly include electrical performance test, mechanical performance test, material performance test, aging and stability test, appearance inspection and structural dimension test, etc. Through the test, the potential faults and defects of the cable can be found in time to avoid power outage and communication interruption caused by cable failure. At present, the content of the structural dimension test of the cable mainly includes the thickness of insulation and sheath, the thinnest thickness, and the overall dimensions. In the prior art, the traditional slicing test method is often used to test the thickness of the cable sheath, that is, the cable is cut into segments, and the cable slices are enlarged by a projector to measure the thickness of the sheath. This detection method not only has inaccurate test results, but also needs to be tested for each cable slice, which makes the detection process more troublesome, the procedure is complicated, and it is not convenient to use.

[0003] In order to solve the problem that the traditional slicing detection method is relatively troublesome, an automatic thickness detection device for the distribution network cable to be inspected in the market adopts an ultrasonic thickness measurement method and has a certain market share.

[0004] After searching, the invention patent with publication number CN116858148B discloses a thickness monitoring device, an automatic production system and a thickness detection method. The thickness monitoring device includes a support and a detection mechanism. The support forms a cable station for cable routing. The detection mechanism is connected to the support and is arranged on the peripheral side of the cable station. The detection mechanism includes a moving component and a detection component. The moving component is connected to the detection component and is used to drive the detection component to move so as to adjust the position between the detection component and the cable. The detection component includes a thickness detection component, which is used to detect the outer thickness of the cable.

[0005] Based on the above search and in combination with the prior art, it is found that the existing cable sheath thickness detection equipment adopts ultrasonic detection. Although it solves the problem that the traditional slicing detection method is more troublesome, during the detection process, the detection device can only detect the sheath thickness at a certain position of the cable, and cannot form the function of detecting multiple positions of the cable sheath, making the detected data less representative. Therefore, an automatic thickness detection device for the distribution network cable to be inspected is proposed to improve the above problem. Summary of the invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the existing detection device can only detect the sheath thickness at a certain position of the cable, and cannot form the function of detecting multiple positions of the cable sheath, making the detected data less representative.

[0007] In order to solve the above problems, the present invention provides an automatic thickness detection device for a cable to be tested, comprising:

[0008] A detection box, a central console is fixedly installed on the top of the detection box, a tensioning assembly is arranged at the bottom of the detection box, and two centering clamping assemblies for clamping the cable sheath are arranged on the top of the tensioning assembly;

[0009] A displacement assembly, the displacement assembly being mounted on the top of the detection box;

[0010] A thickness detection component, the thickness detection component is installed at the bottom of the moving end of the displacement component;

[0011] A coupling agent coating component, wherein the coupling agent coating component is installed on one side of the thickness detection component;

[0012] The thickness detection component includes an annular frame, and a guide port distributed in an annular shape with equal distances is opened in the middle position of the annular frame, and the inner wall of the guide port is plugged with a movable tooth seat, and the inner wall of the annular frame is rotatably connected with a tooth column distributed in an equal distance, and one side of the outer wall of the tooth column is meshed with the outer wall of one side of the movable tooth seat, and the inner wall of the annular frame is rotatably connected with a first tooth ring through a bearing, and the outer wall of the first tooth ring is meshed with the other side of the outer wall of the tooth column, and the bottom end of the movable tooth seat is opened, and the inner wall of the telescopic hole is plugged with a telescopic column, and one end of the telescopic column is fixed to one end of the telescopic hole A second spring is installed, and the other end of the telescopic column is fixedly installed with a mounting base, and the bottom of the mounting base is fixedly installed with an ultrasonic sensor probe, the top of the mounting base and the bottom of the movable tooth seat are fixedly installed with a telescopic protective cover sleeved on the outer wall of the telescopic column, the top of the movable tooth seat at the top and the top of the movable tooth seat at the bottom are fixed with two mounting plates, and a pulley is rotatably connected between the two mounting plates, two track rods are fixedly installed on the inner wall of the detection box, and the two pulleys slide on the two track rods respectively, and the track rods are designed to be wavy strips.

[0013] The present invention is further configured such that the inner wall of the annular frame is fixed with guide cylinders which are equidistantly distributed in an annular shape, and the outer wall on the other side of the movable gear seat is fixed with an L-shaped guide rod inserted in the guide cylinder, the outer wall of the annular frame is provided with a through hole for the L-shaped guide rod to pass through, and a first spring is fixedly installed on one end of the L-shaped guide rod and the inner wall of one end of the guide cylinder.

[0014] The present invention is further configured such that the displacement assembly includes a threaded rod rotatably connected to the top of the inner wall of the detection box, and a second motor for driving the threaded rod to rotate is fixedly installed on the top of the outer wall of one end of the detection box, the second motor is electrically connected to the center console, a second U-shaped movable plate is screwed on the threaded rod, and the annular frame is fixedly installed on the bottom of the second U-shaped movable plate, a second guide hole is opened on the top of the second U-shaped movable plate, and a second guide rod passing through the second guide hole is fixed to the inner wall of the detection box.

[0015] The present invention is further configured such that a first bracket is fixedly mounted on one side of the second U-shaped movable plate, and a first distance sensor is fixedly mounted on the bottom of the first bracket, and the first distance sensor, the ultrasonic sensor probe and the center console are electrically connected.

[0016] The present invention is further configured such that a connecting plate is fixed to the bottom of the outer wall of one end of the movable gear seat, and a nozzle is fixedly installed on one end of the bottom of the connecting plate, the horizontal distance between the nozzle and the ultrasonic sensor probe is the same as the horizontal distance between the lowest point and the highest point of the adjacent track rods, a coupling agent injection device is fixedly installed on the outer wall of one end of the detection box, and a conveying pipeline is connected between the spraying end of the coupling agent injection device and the feeding end of the nozzle.

[0017] The present invention is further configured as follows: the coupling agent coating assembly includes a fixed cylinder fixedly mounted on one side of the annular frame, and one end of the inner wall of the fixed cylinder is rotatably connected to the second gear ring through a bearing, and elastic rods distributed at equal distances are fixed to one side of the inner wall of the second gear ring, and an coating pad is installed at one end of the elastic rods, and the coating pad is flush with the nozzle, and a mounting port is opened on one side of the top of the fixed cylinder, and a third motor is fixedly mounted on the top of the fixed cylinder, and a driving gear passing through the mounting port is fixedly mounted on the output shaft of the third motor, and the driving gear is meshed with the outer wall of the second gear ring.

[0018] The present invention is further configured such that a second bracket is fixedly installed at the middle position of the inner wall of the second U-shaped movable plate, and a second distance sensor is fixedly installed at the middle position of the bottom of the second bracket, the second distance sensor is located directly above the pulley, and the second distance sensor and the third motor are electrically connected to the center console.

[0019] The present invention is further configured such that the tensioning assembly includes a first bidirectional screw rotatably connected to the bottom of the inner wall of the detection box, and a first motor for driving the first bidirectional screw to rotate is fixedly installed at the bottom of the outer wall of one end of the detection box, the first motor is electrically connected to the central console, first U-shaped movable plates are screwed on both sides of the outer wall of the first bidirectional screw, and two centering clamping assemblies are respectively installed on the top of the two first U-shaped movable plates, a first guide hole is opened at the bottom of the first U-shaped movable plate, and a first guide rod passing through the first guide hole is fixed to the inner wall of the detection box.

[0020] The present invention is further configured as follows: the centering clamping assembly includes a clamping frame fixedly mounted on the top of the first U-shaped movable plate, and the inner wall of the clamping frame is respectively provided with a first clamping groove and a second clamping groove equidistantly distributed in an annular shape, the inner wall of the adjacent first clamping groove and the inner wall of the second clamping groove are rotatably connected with a second bidirectional screw, the outer wall of the second bidirectional screw is threaded with an outer clamping seat and an inner clamping seat inserted in the first clamping groove and the second clamping groove, one end of the second bidirectional screw is fixedly mounted with a transmission gear, and the outer wall of the transmission gear is meshed with the same movable gear rack, a mounting hole is provided in the middle position of the outer wall of one side of the clamping frame, an electric push rod is fixedly mounted on the inner wall of the mounting hole, and the piston end of the electric push rod is fixedly mounted in the middle position of the movable gear rack.

[0021] The present invention is further configured such that two partitions are fixedly installed on the inner wall of the detection box, and two track rods are located between the two partitions, two first guide grooves are opened at both ends of the partition located at the bottom, and the first U-shaped movable plate passes through the first guide groove, and two second guide grooves are opened in the middle position of the partition located at the top, and the second U-shaped movable plate passes through the second guide groove.

[0022] In summary, after adopting the above structure, the present invention has the following advantages compared with the prior art:

[0023] 1. The above-mentioned tensioning assembly and centering clamping assembly can be used to clamp and tension the cable sheath of the inspection network. Before the inspection, the centering clamping assembly is used to clamp and fix the two ends of the cable sheath, and the distance between the two centering clamping assemblies is adjusted by the tensioning assembly to tighten the cable sheath. On the one hand, the stability of the cable sheath during thickness inspection is ensured to avoid the problem of the unstable cable sheath affecting the inspection data. On the other hand, the cable sheath can be centered so that the cable sheath can pass through the center position of the thickness inspection assembly, effectively ensuring the accuracy of the subsequent inspection data.

[0024] 2. The displacement assembly, thickness detection assembly and track rod are used, and the displacement assembly is used to drive the thickness detection assembly to perform linear motion, so that the pulley slides on the track rod. When the pulley moves to the lowest point of the track rod, the wavy track rod squeezes the pulley and the movable tooth seat to move to one side of the annular frame, thereby cooperating with the meshing action of the movable tooth seat and the tooth column and the meshing action of the tooth column and the first tooth ring to drive all the movable tooth seats to contract, so that the ultrasonic sensor probe is evenly surrounded and attached to the surface of the cable sheath, and at the same time, the first distance sensor will move to the highest point of the track rod to transmit the shortest distance signal to the middle The control console controls the ultrasonic sensor probe to work, thereby realizing the function of ultrasonic detection of cable sheath thickness and achieving full coverage of the outer side of the cable sheath, which is convenient for detecting the thickness of the cable sheath in different directions. Moreover, with the continuous operation of the displacement component and the intermittent squeezing effect of the track rod, the ultrasonic sensor probe in the thickness detection component can be driven to show a phenomenon of continuous contraction and release, so that the ultrasonic sensor probe is attached to the surface of the cable sheath in an equidistant form, which is convenient for equidistant and different positions of the cable sheath to perform thickness detection processing, forming the function of detecting multiple positions of the cable sheath, and enhancing the representativeness of the detection data;

[0025] 3. Using the above-mentioned displacement component, coupling agent spraying device, coupling agent coating component, nozzle and second distance sensor, the displacement component is used to drive the nozzle and coupling agent coating component to perform linear motion. When the pulley moves to the highest point of the track rod, the second distance sensor will move to the highest point of the track rod. At this time, the shortest distance signal is transmitted to the central console to control the coupling agent spraying device and the coupling agent coating component to work successively. The coupling agent is sprayed on the surface of the cable sheath by the coupling agent spraying device and the nozzle, and the coupling agent is evenly coated on the surface of the cable sheath under the action of the coupling agent coating component. On the one hand, a layer of coupling agent can be applied on the surface of the cable sheath during ultrasonic detection to eliminate the air gap between the ultrasonic sensor probe and the surface of the cable sheath. On the other hand, when detecting some cable sheaths with cracks on the surface, the coupling agent can also be pressed into the cracks to fill the cracks to avoid affecting the penetration of sound waves on the cable sheath. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of a thickness detection component and a coupling agent application component of an automatic thickness detection device for a network cable to be detected according to the present invention;

[0027] Figure 2 It is a three-dimensional structural schematic diagram of an automatic thickness detection device for a distribution network cable to be detected according to the present invention;

[0028] Figure 3 It is a front view of an automatic thickness detection device for a network cable to be detected according to the present invention;

[0029] Figure 4This is a schematic diagram of the structure of a partition plate and a first guide groove of an automatic thickness detection device for a network cable to be detected according to the present invention;

[0030] Figure 5 This is a schematic structural diagram of a centering clamping assembly of an automatic thickness detection device for a network cable to be inspected according to the present invention;

[0031] Figure 6 for Figure 5 Sectional view;

[0032] Figure 7 This is a schematic structural diagram of a first clamping groove and a second clamping groove of an automatic thickness detection device for a network cable to be inspected according to the present invention;

[0033] Figure 8 It is a side view of a thickness detection component and a coupling agent application component of an automatic thickness detection device for a network cable to be inspected according to the present invention;

[0034] Fig. 9 It is a front cross-sectional view of a thickness detection component and a coupling agent application component of an automatic thickness detection device for a network cable to be detected according to the present invention;

[0035] Fig.10 A stereoscopic diagram of a coupling agent applying component of an automatic thickness detection device for a network cable to be inspected according to the present invention;

[0036] Fig.11 This is a schematic diagram of the structure of a nozzle and a connecting plate of an automatic thickness detection device for a network cable to be inspected according to the present invention;

[0037] Fig.12 It is a cross-sectional view of a ring frame of an automatic thickness detection device for a network cable to be detected according to the present invention;

[0038] Fig.13 This is a schematic diagram of the structure of a first spring and a second spring of an automatic thickness detection device for a network cable to be inspected according to the present invention.

[0039] Description of the numbers in the figure:

[0040] 1. Detection box; 2. Partition; 3. Tensioning assembly; 301. First motor; 302. First U-shaped movable plate; 303. First bidirectional screw; 304. First guide rod; 305. First guide groove; 4. Couplant spraying device; 5. Displacement assembly; 501. Second motor; 502. Threaded rod; 503. Second guide rod; 504. Second U-shaped movable plate; 6. Center console; 7. Thickness detection assembly; 701. Ring frame; 702. Movable tooth seat; 703. L-shaped guide rod; 704. Ultrasonic sensor probe; 705. Pulley; 706. Mounting plate; 707. Tooth column; 708. Guide cylinder; 709. First tooth ring; 710. First spring; 711. Telescopic hole; 712. Second spring; 713. Telescopic column; 714, mounting base; 715, telescopic protective cover; 8, centering clamping assembly; 801, clamping frame; 802, movable gear rack; 803, transmission gear; 804, outer clamping seat; 805, inner clamping seat; 806, second bidirectional screw; 807, electric push rod; 808, first clamping groove; 809, mounting hole; 810, second clamping groove; 9, track rod; 10, coupling agent application assembly; 1001, fixing cylinder; 1002, second gear ring; 1003, elastic rod; 1004, application pad; 1005, driving gear; 1006, third motor; 11, first bracket; 12, first distance sensor; 13, second bracket; 14, second distance sensor; 15, nozzle; 16, connecting plate. DETAILED DESCRIPTION

[0041] The implementation methods of the present application are described in detail below with reference to the accompanying drawings.

[0042] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0043] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] The present invention provides an automatic thickness detection device for the network cable to be tested. Figure 1-Figure 13 ,include:

[0046] A detection box 1, a central console 6 is fixedly installed on the top of the detection box 1, a tensioning assembly 3 is arranged at the bottom of the detection box 1, and two centering clamping assemblies 8 for clamping the cable sheath are arranged on the top of the tensioning assembly 3;

[0047] A displacement assembly 5, the displacement assembly 5 is installed on the top of the detection box 1;

[0048] A thickness detection component 7, which is installed at the bottom of the moving end of the displacement component 5;

[0049] A coupling agent coating assembly 10, which is installed on one side of the thickness detection assembly 7, and the cable sheath passes through the center of the thickness detection assembly 7 and the coupling agent coating assembly 10;

[0050] The thickness detection component 7 includes an annular frame 701, and a guide opening distributed in an annular shape with equal distances is opened in the middle position of the annular frame 701, and the inner wall of the guide opening is plugged with a movable tooth seat 702, and the inner wall of the annular frame 701 is rotatably connected with a tooth column 707 distributed at equal distances, and one side of the outer wall of the tooth column 707 is meshed with the outer wall of one side of the movable tooth seat 702, and the inner wall of the annular frame 701 is rotatably connected with a first tooth ring 709 through a bearing, and the outer wall of the first tooth ring 709 is meshed with the other side of the outer wall of the tooth column 707, and the bottom end of the movable tooth seat 702 is opened with a telescopic hole 711, and the inner wall of the telescopic hole 711 is plugged with a telescopic column 713, and one end of the telescopic column 713 is fixedly installed with a second spring 712 on one end of the telescopic hole 711 , the other end of the telescopic column 713 is fixedly installed with a mounting base 714, and the bottom of the mounting base 714 is fixedly installed with an ultrasonic sensor probe 704, the top of the mounting base 714 and the bottom of the movable tooth seat 702 are fixedly installed with a telescopic protective cover 715 sleeved on the outer wall of the telescopic column 713, the top of the movable tooth seat 702 at the top and the top of the movable tooth seat 702 at the bottom are fixed with two mounting plates 706, and a pulley 705 is rotatably connected between the two mounting plates 706, the inner wall of the detection box 1 is fixedly installed with two track rods 9 symmetrically distributed along the center of the cable, and the two pulleys 705 slide on the two track rods 9 respectively, the track rods 9 are designed to be wavy strips, and the displacement component 5 includes a rotationally connected A threaded rod 502 is arranged on the top of the inner wall of the detection box 1, and a second motor 501 for driving the threaded rod 502 to rotate is fixedly installed on the top of the outer wall of one end of the detection box 1, and the second motor 501 is electrically connected to the center console 6, a second U-shaped movable plate 504 is screwed on the threaded rod 502, and the annular frame 701 is fixedly installed on the bottom of the second U-shaped movable plate 504, a second guide hole is opened on the top of the second U-shaped movable plate 504, and a second guide rod 503 passing through the second guide hole is fixedly installed on the inner wall of the detection box 1, a first bracket 11 is fixedly installed on one side of the second U-shaped movable plate 504, and a first distance sensor 12 is fixedly installed on the bottom of the first bracket 11, and the first distance sensor 12, the ultrasonic sensor probe 704 and the center console 6 are electrically connected. Then, the first distance sensor 12 and the pulley 705 correspond to the lowest point and the highest point of the track rod 9 respectively. The above-mentioned displacement assembly 5, thickness detection assembly 7 and track rod 9 are adopted, and the second motor 501 in the displacement assembly 5 is used to drive the threaded rod 502 to rotate, drive the second U-shaped movable plate 504 and the thickness detection assembly 7 to make linear motion, so that the pulley 705 slides on the track rod 9. When the pulley 705 moves to the lowest point of the track rod 9, the wavy track rod 9 squeezes the pulley 705 and the movable gear seat 702 to move to one side of the annular frame 701, thereby cooperating with the meshing action of the movable gear seat 702 and the tooth column 707 and the meshing action of the tooth column 707 and the first gear ring 709 to drive all the movable gear seats 702 to contract.The ultrasonic sensor probe 704 is evenly surrounded and attached to the surface of the cable sheath, and at the same time, the first distance sensor 12 will move to the highest point of the track rod 9, and transmit the shortest distance signal to the central console 6 to control the operation of the ultrasonic sensor probe 704, so as to detect different directions of the cable sheath through ultrasonic waves in multiple directions. With the continuous operation of the displacement component 5 and the intermittent squeezing effect of the track rod 9, the above process will be repeated many times, so that the ultrasonic sensor probe 704 in the thickness detection component 7 can be driven to continuously contract and release, so that the ultrasonic sensor probe 704 is attached to the surface of the cable sheath in an equidistant form, which is convenient for the thickness detection of the cable sheath at equidistant and different positions.

[0051] In the present invention, the inner wall of the annular frame 701 is fixed with guide cylinders 708 which are distributed in an annular manner at equal distances, and the outer wall of the other side of the movable gear seat 702 is fixed with an L-shaped guide rod 703 which is inserted into the guide cylinder 708. The outer wall of the annular frame 701 is provided with a through hole for the L-shaped guide rod 703 to pass through, and one end of the L-shaped guide rod 703 and the inner wall of one end of the guide cylinder 708 are fixedly installed with a first spring 710, see Figure 8 , Fig. 9 , Fig.11 , Fig.12 and Fig.13 By using the above-mentioned L-shaped guide rod 703, the first spring 710 and the guide cylinder 708, when the movable tooth seat 702 is working, the telescopic effect of the first spring 710 can easily drive the movable tooth seat 702 to quickly reset, so as to facilitate the thickness detection operation at the subsequent position.

[0052] In the present invention, a connecting plate 16 is fixed to the bottom of the outer wall of one end of the movable gear seat 702, and a nozzle 15 is fixedly installed at one end of the bottom of the connecting plate 16. The horizontal distance between the nozzle 15 and the ultrasonic sensor probe 704 is the same as the horizontal distance between the lowest point and the highest point of the adjacent track rod 9. A coupling agent spraying device 4 is fixedly installed on the outer wall of one end of the detection box 1, and the spraying end of the coupling agent spraying device 4 and the feeding end of the nozzle 15 are connected with a conveying pipeline. The coupling agent coating component 10 includes a fixed cylinder 1001 fixedly installed on one side of the annular frame 701, and one end of the inner wall of the fixed cylinder 1001 is rotatably connected to the second gear ring 1002 through a bearing. One side of the inner wall of the second gear ring 1002 is fixed with elastic rods 1003 distributed at equal distances. The elastic rods 1003 are fixed to one side of the inner wall of the second gear ring 1002. A smear pad 1004 is installed at one end of the rod 1003, and the smear pad 1004 is flush with the nozzle 15. A mounting port is opened on one side of the top of the fixed cylinder 1001, and a third motor 1006 is fixedly installed on the top of the fixed cylinder 1001. The output shaft of the third motor 1006 is fixedly installed with a driving gear 1005 passing through the mounting port. The driving gear 1005 is meshed with the outer wall of the second gear ring 1002. A second bracket 13 is fixedly installed at the middle position of the inner wall of the second U-shaped movable plate 504, and a second distance sensor 14 is fixedly installed at the middle position of the bottom of the second bracket 13. The second distance sensor 14 is located directly above the pulley 705. The second distance sensor 14 and the third motor 1006 are electrically connected to the center console 6, see Figure 1 , Figure 2 , Figure 3 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 , using the above-mentioned coupling agent spraying device 4, spray head 15 and coupling agent coating assembly 10, when the displacement assembly 5 is working, it will drive the spray head 15 and the coupling agent coating assembly 10 to make linear motion. When the pulley 705 moves to the highest point of the track rod 9, the second distance sensor 14 will also move to the highest point of the track rod 9. At this time, the shortest distance signal is transmitted to the central console 6 to control the coupling agent spraying device 4 and the coupling agent coating assembly 10 to work successively. The coupling agent spraying device 4 and the spray head 15 are used to spray the coupling agent on the surface of the cable sheath, and the third motor 10 in the coupling agent coating assembly 10 is controlled. 06 works, driving the driving gear 1005, the second gear ring 1002, the elastic rod 1003 and the coating pad 1004 to rotate, and the coupling agent is evenly coated on the surface of the cable sheath by the rotating coating pad 1004. On the one hand, a layer of coupling agent can be applied on the surface of the cable sheath during ultrasonic testing, so as to eliminate the air gap between the ultrasonic sensor probe 704 and the surface of the cable sheath. On the other hand, when testing some cable sheaths with cracks on the surface, the coupling agent can also be pressed into the cracks to fill the cracks to avoid affecting the penetration of sound waves on the cable sheath.

[0053] In the present invention, the tensioning assembly 3 includes a first bidirectional screw 303 rotatably connected to the bottom of the inner wall of the detection box 1, and a first motor 301 for driving the first bidirectional screw 303 to rotate is fixedly installed at the bottom of the outer wall of one end of the detection box 1, and the first motor 301 is electrically connected to the central console 6, and first U-shaped movable plates 302 are screwed on both sides of the outer wall of the first bidirectional screw 303, and two centering clamping assemblies 8 are respectively installed on the top of the two first U-shaped movable plates 302, and a first guide hole is opened at the bottom of the first U-shaped movable plate 302, and a first guide rod 304 passing through the first guide hole is fixed to the inner wall of the detection box 1, and the centering clamping assembly 8 includes a clamping frame 801 fixedly installed on the top of the first U-shaped movable plate 302, and the inner wall of the clamping frame 801 is respectively opened with first clamping grooves 8 distributed in an annular shape at equal distances. 08 and the second clamping groove 810, the inner wall of the adjacent first clamping groove 808 and the inner wall of the second clamping groove 810 are rotatably connected with the second bidirectional screw 806, the outer wall of the second bidirectional screw 806 is threaded with an outer clamping seat 804 and an inner clamping seat 805 which are inserted into the first clamping groove 808 and the second clamping groove 810, the outer clamping seat 804 and the inner clamping seat 805 are respectively attached to the outer surface and the inner surface of the cable sheath, one end of the second bidirectional screw 806 is fixedly installed with a transmission gear 803, and the outer wall of the transmission gear 803 is meshed with the same movable gear rack 802, a mounting hole 809 is opened in the middle position of the outer wall of one side of the clamping frame 801, and an electric push rod 807 is fixedly installed on the inner wall of the mounting hole 809, and the piston end of the electric push rod 807 is fixedly installed in the middle position of the movable gear rack 802, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 By using the above-mentioned tensioning assembly 3 and centering clamping assembly 8, the two ends of the cable sheath can be respectively inserted into the clamping frames 801 of the two centering clamping assemblies 8, and the position of the movable gear rack 802 is adjusted by the electric push rod 807, and the second bidirectional screw 806 is driven to rotate by the meshing action of the movable gear rack 802 and the transmission gear 803, thereby changing the positions of the outer clamping seat 804 and the inner clamping seat 805, thereby clamping and fixing the two ends of the cable sheath, and the first bidirectional screw 303 is driven to rotate by the first motor 301 in the tensioning assembly 3 to adjust the distance between the two first U-shaped movable plates 302 and the two centering clamping assemblies 8, thereby tightening the cable sheath. On the one hand, it ensures the stable performance of the cable sheath during thickness detection and avoids the problem of affecting the detection data due to the instability of the cable sheath. On the other hand, it can center the cable sheath so that the cable sheath can pass through the center position of the thickness detection assembly 7, effectively ensuring the accuracy of subsequent detection data.

[0054] In the present invention, two partitions 2 are fixedly installed on the inner wall of the detection box 1 and are symmetrically distributed along the center of the cable, and two track rods 9 are located between the two partitions 2. Two first guide grooves 305 are provided at both ends of the partition 2 at the bottom, and the first U-shaped movable plate 302 passes through the first guide groove 305. Two second guide grooves are provided in the middle position of the partition 2 at the top, and the second U-shaped movable plate 504 passes through the second guide groove. Figure 2 , Figure 3 and Figure 4 The two partitions 2 mentioned above are used to hide the tensioning assembly 3 and the displacement assembly 5 in the detection box 1, making it more beautiful, and the guiding effect of the first guide groove 305 and the second guide groove fully ensures the working stability of the tensioning assembly 3 and the displacement assembly 5.

[0055] In summary, the working principle of the present invention is as follows: when in use, the staff first cuts off the longer cable at one end, removes the cable core, and obtains the cable sheath; then, the two ends of the cable sheath are respectively inserted into the clamping frames 801 of the two centering clamping assemblies 8, and the position of the movable gear rack 802 is adjusted by the electric push rod 807, and the meshing action of the movable gear rack 802 and the transmission gear 803 drives the second bidirectional screw 806 to rotate, and changes the outer clamping seat 804 and the inner clamping seat 805 in the second bidirectional screw 806 and the first clamping groove 808. and the second clamping groove 810, thereby clamping and fixing the two ends of the cable sheath; then, the staff drives the first bidirectional screw 303 to rotate through the first motor 301 in the tensioning component 3, and adjusts the distance between the two first U-shaped movable plates 302 and the two centering clamping components 8, thereby tightening the cable sheath, making the cable sheath in a stable state, and also making the cable sheath in the center position of the thickness detection component 7 and the coupling agent application component 10; next, the user controls the displacement component 5 through the central console 6 The second motor 501 in the displacement assembly 5 drives the threaded rod 502 to rotate, drives the second U-shaped movable plate 504, the thickness detection assembly 7 and the coupling agent coating assembly 10 to perform linear motion, so that the pulley 705 slides on the track rod 9. When the pulley 705 moves to the highest point of the track rod 9, the second distance sensor 14 will also move to the highest point of the track rod 9. At this time, the shortest distance signal is transmitted to the central console 6 to control the coupling agent spraying device 4 and the coupling agent coating assembly 10 to work successively. The coupling agent spraying device 4 and the nozzle 15 are used to spray the coupling agent on the surface of the cable sheath, and the third motor 1006 in the coupling agent coating assembly 10 is controlled to work, driving the driving gear 1005, the second gear ring 1002, the elastic rod 1003 and the coating pad 1004 to rotate. The rotating coating pad 1004 is used to evenly coat the coupling agent on the surface of the cable sheath. As the displacement assembly 5 continues to work, the second distance sensor 14 will move away from the track rod 9. At this time, the coupling agent spraying device 4 and the coupling agent coating assembly 10 are controlled to shut down through the central console 6.When the pulley 705 moves to the lowest point of the track rod 9, the wavy track rod 9 squeezes the pulley 705 and the movable tooth seat 702 to move to one side of the annular frame 701, so that the meshing action of the movable tooth seat 702 and the tooth column 707 and the meshing action of the tooth column 707 and the first tooth ring 709 drive all the movable tooth seats 702 to contract, so that the ultrasonic sensor probe 704 is evenly surrounded and attached to the surface of the cable sheath, and at the same time, the first distance sensor 12 will move to the highest point of the track rod 9, and the shortest distance signal The signal is transmitted to the central console 6 to control the ultrasonic sensor probe 704 to work, so as to detect different positions of the cable sheath through ultrasonic waves in multiple directions. With the continuous operation of the displacement component 5 and the intermittent squeezing action of the track rod 9, the above process will be repeated many times, so that the ultrasonic sensor probe 704 in the thickness detection component 7 can be driven to continuously contract and release, so that the ultrasonic sensor probe 704 is attached to the surface of the cable sheath in an equidistant form, which is convenient for the thickness detection processing of the cable sheath at equidistant and different positions. ;

[0056] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An automatic thickness detection device for a network cable to be inspected, characterized in that: include: A detection box (1), wherein a central console (6) is fixedly mounted on the top of the detection box (1), a tensioning assembly (3) is arranged at the bottom of the detection box (1), and two centering clamping assemblies (8) for clamping cable sheaths are arranged on the top of the tensioning assembly (3); A displacement component (5), the displacement component (5) being installed on the top of the detection box (1); A thickness detection component (7), the thickness detection component (7) being mounted on the bottom of the moving end of the displacement component (5); A coupling agent smearing component (10), wherein the coupling agent smearing component (10) is installed on one side of the thickness detection component (7); The thickness detection component (7) comprises an annular frame (701), and a guide opening which is distributed in an annular shape at equal distances is opened in the middle position of the annular frame (701), and the inner wall of the guide opening is plugged with a movable tooth seat (702), and the inner wall of the annular frame (701) is rotatably connected with a tooth column (707) which is distributed in an annular shape at equal distances, and one side of the outer wall of the tooth column (707) is meshed with one side of the outer wall of the movable tooth seat (702), and the inner wall of the annular frame (701) is rotatably connected with a first tooth ring (709) through a bearing, and the outer wall of the first tooth ring (709) is meshed with the other side of the outer wall of the tooth column (707), and the bottom end of the movable tooth seat (702) is opened with a telescopic hole (711), and the inner wall of the telescopic hole (711) is plugged with a telescopic column (713), and one end of the telescopic column (713) is fixed to one end of the telescopic hole (711). A second spring (712) is fixedly installed, the other end of the telescopic column (713) is fixedly installed with a mounting base (714), and the bottom of the mounting base (714) is fixedly installed with an ultrasonic sensor probe (704), the top of the mounting base (714) and the bottom of the movable tooth seat (702) are fixedly installed with a telescopic protective cover (715) sleeved on the outer wall of the telescopic column (713), the top of the movable tooth seat (702) located at the top and the top of the movable tooth seat (702) located at the bottom are fixed with two mounting plates (706), and a pulley (705) is rotatably connected between the two mounting plates (706), and the inner wall of the detection box (1) is fixedly installed with two track rods (9), and the two pulleys (705) slide on the two track rods (9) respectively, and the track rods (9) are designed to be wavy strips.

2. The automatic thickness detection device for the network cable to be inspected according to claim 1 is characterized in that: The inner wall of the annular frame (701) is fixed with guide cylinders (708) which are equidistantly distributed in an annular shape, and the outer wall of the other side of the movable gear seat (702) is fixed with an L-shaped guide rod (703) which is inserted into the guide cylinder (708). The outer wall of the annular frame (701) is provided with a through hole for the L-shaped guide rod (703) to pass through, and a first spring (710) is fixedly installed on one end of the L-shaped guide rod (703) and the inner wall of one end of the guide cylinder (708).

3. The automatic thickness detection device for the network cable to be inspected according to claim 2 is characterized in that: The displacement assembly (5) comprises a threaded rod (502) rotatably connected to the top of the inner wall of the detection box (1), and a second motor (501) for driving the threaded rod (502) to rotate is fixedly mounted on the top of the outer wall of one end of the detection box (1), the second motor (501) being electrically connected to the central control console (6), a second U-shaped movable plate (504) being screwed onto the threaded rod (502), and an annular frame (701) being fixedly mounted on the bottom of the second U-shaped movable plate (504), a second guide hole being formed at the top of the second U-shaped movable plate (504), and a second guide rod (503) passing through the second guide hole is fixedly mounted on the inner wall of the detection box (1).

4. The automatic thickness detection device for the network cable to be inspected according to claim 3 is characterized in that: A first bracket (11) is fixedly mounted on one side of the second U-shaped movable plate (504), and a first distance sensor (12) is fixedly mounted on the bottom of the first bracket (11); the first distance sensor (12), the ultrasonic sensor probe (704) and the central console (6) are electrically connected.

5. The automatic thickness detection device for the network cable to be inspected according to claim 4 is characterized in that: A connecting plate (16) is fixed to the bottom of the outer wall at one end of the movable gear seat (702), and a nozzle (15) is fixedly mounted to one end of the bottom of the connecting plate (16); the horizontal distance between the nozzle (15) and the ultrasonic sensor probe (704) is the same as the horizontal distance between the lowest point and the highest point of the adjacent track rod (9); a coupling agent spraying device (4) is fixedly mounted on the outer wall at one end of the detection box (1), and a conveying pipeline is connected between the spraying end of the coupling agent spraying device (4) and the feeding end of the nozzle (15).

6. The automatic thickness detection device for the network cable to be detected according to claim 5 is characterized in that: The coupling agent smearing assembly (10) comprises a fixed cylinder (1001) fixedly mounted on one side of the annular frame (701), and one end of the inner wall of the fixed cylinder (1001) is rotatably connected to a second gear ring (1002) via a bearing, and elastic rods (1003) distributed at equal distances are fixed to one side of the inner wall of the second gear ring (1002), and one end of each of the elastic rods (1003) is mounted with a smearing pad (1004), and the smearing pad (1004) is flush with the nozzle (15), and a mounting opening is provided on one side of the top of the fixed cylinder (1001), and a third motor (1006) is fixedly mounted on the top of the fixed cylinder (1001), and a driving gear (1005) passing through the mounting opening is fixedly mounted on the output shaft of the third motor (1006), and the driving gear (1005) is meshed with the outer wall of the second gear ring (1002).

7. The automatic thickness detection device for the network cable to be detected according to claim 6 is characterized in that: A second bracket (13) is fixedly mounted at the middle position of the inner wall of the second U-shaped movable plate (504), and a second distance sensor (14) is fixedly mounted at the middle position of the bottom of the second bracket (13); the second distance sensor (14) is located directly above the pulley (705); and the second distance sensor (14), the third motor (1006) and the central console (6) are electrically connected.

8. The automatic thickness detection device for the network cable to be detected according to claim 7 is characterized in that: The tensioning assembly (3) comprises a first bidirectional screw (303) rotatably connected to the bottom of the inner wall of the detection box (1), and a first motor (301) for driving the first bidirectional screw (303) to rotate is fixedly installed at the bottom of the outer wall of one end of the detection box (1), and the first motor (301) is electrically connected to the central control table (6), and first U-shaped movable plates (302) are screwed on both sides of the outer wall of the first bidirectional screw (303), and two centering clamping assemblies (8) are respectively installed on the top of the two first U-shaped movable plates (302), and a first guide hole is opened at the bottom of the first U-shaped movable plate (302), and a first guide rod (304) passing through the first guide hole is fixed to the inner wall of the detection box (1).

9. The automatic thickness detection device for the network cable to be detected according to claim 8 is characterized in that: The centering clamping assembly (8) comprises a clamping frame (801) fixedly mounted on the top of the first U-shaped movable plate (302), and the inner wall of the clamping frame (801) is respectively provided with a first clamping groove (808) and a second clamping groove (810) which are equidistantly distributed in an annular pattern, the inner wall of the adjacent first clamping groove (808) and the inner wall of the second clamping groove (810) are rotatably connected with a second bidirectional screw (806), and the outer wall of the second bidirectional screw (806) is threadedly connected with a screw plugged into the first clamping groove (808) and the second clamping groove The outer clamping seat (804) and the inner clamping seat (805) in (810), one end of the second bidirectional screw (806) is fixedly mounted with a transmission gear (803), and the outer wall of the transmission gear (803) is meshed with the same movable gear rack (802), a mounting hole (809) is opened in the middle position of the outer wall of one side of the clamping frame (801), an electric push rod (807) is fixedly mounted on the inner wall of the mounting hole (809), and the piston end of the electric push rod (807) is fixedly mounted in the middle position of the movable gear rack (802).

10. The automatic thickness detection device for the network cable to be detected according to claim 9 is characterized in that: Two partitions (2) are fixedly mounted on the inner wall of the detection box (1), and two track rods (9) are located between the two partitions (2). Two first guide grooves (305) are provided at both ends of the partition (2) located at the bottom, and the first U-shaped movable plate (302) passes through the first guide grooves (305). Two second guide grooves are provided in the middle of the partition (2) located at the top, and the second U-shaped movable plate (504) passes through the second guide grooves.

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