Automatic detection device and method for coaxial cable

Abstract

The invention discloses an automatic detection device for a coaxial cable, which comprises a base, a cable junction box, a moving mechanism for driving the cable junction box to move, a cable rack, an interference signal connecting column group and a control system, and is characterized in that two mounting grooves are formed in the upper surface of the base, and the moving mechanism is mounted in the mounting grooves; the interference signal connecting column group comprises two rows of lower penetrating connecting column groups and two rows of upper turning connecting column groups, the control system comprises a control panel and an analog interference signal module arranged on the control panel, and the method comprises the following steps: respectively installing two ends of the coaxial cable in two cable junction boxes; interference lines are installed; a transmission signal input from the cable junction box at the input end is set through the computer; and the moving mechanism is used for bending the coaxial cable moving rod. According to the invention, a plurality of interference signal lines distributed around the coaxial cable are simulated, the coaxial cable is detected, and the influence of the coaxial cable on signal transmission under the conditions of stretching, bending and moving can be detected.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and in particular to an automatic detection device and method for coaxial cables. Background Art

[0002] Coaxial cable is a communication cable composed of two conductors, inner and outer. From the inside to the outside, it is divided into four layers: central copper wire (single solid wire or multi-strand twisted wire), plastic insulator, mesh conductive layer and wire sheath. Based on electromagnetic induction and electromagnetic wave transmission. The central conductor and the shielding layer form a current loop that can conduct alternating current. When the signal is transmitted in the central conductor, the shielding layer can prevent the influence of external electromagnetic interference on the signal, thereby ensuring the stable transmission of the signal. However, coaxial cables will be entangled with other cables during use, and are easily interfered by the electromagnetic field generated by other cables, affecting the stability of signal transmission. Some coaxial cables are used for equipment control in factories, and some coaxial cables need to be stretched or bent several times. In this case, the coaxial cables must maintain a high transmission stability to meet the signal transmission requirements. However, the existing coaxial cable detection is generally manually detected by manual detection equipment, which cannot simulate the influence of interfering cables on the signal transmission of coaxial cables, and cannot simulate the detection of the influence of several stretching or bending on the coaxial connected signal transmission. Summary of the invention The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, one purpose of the present invention is to provide an automatic detection device and method for coaxial cables, which solves the problems of manual detection of coaxial cables, low detection efficiency, simple detection simulation conditions, and failure to meet the detection requirements of the actual coaxial cable use environment.

[0003] An automatic detection device for coaxial cables according to the present invention comprises a base, a cable junction box, a moving mechanism for driving the cable junction box to move, a cable rack, an interference signal terminal group and a control system; The upper surface of the base is symmetrically provided with two mounting grooves near the two ends, a mobile mechanism is installed in the mounting groove, a cable junction box is installed on each of the two mobile mechanisms, an inverted frame is fixedly installed on the base at each mounting groove position, each inverted frame is provided with a detection line, and a section of the detection line is exposed and connected to the corresponding cable junction box, a cable rack is provided in the middle position of the upper surface of the base, and the cable rack includes an upper plate and a lower plate, and the four corner positions of the lower surface of the lower plate are fixed to the base through four support columns, and the four corner positions of the lower surface of the upper plate are fixed to the four corners of the upper surface of the lower plate through four support columns; The interference signal connection post group includes two rows of lower connection post groups arranged on the base at both sides of the cable rack facing the installation slot and two rows of upper connection post groups arranged on the base at both sides of the cable rack facing the base, and the connection posts between the two rows of lower connection post groups correspond one to one and the connection posts between the two rows of upper connection post groups also correspond one to one; The control system includes a control board and an analog interference signal module on the control board. The lower connecting column group and the upper flip connecting column group are both connected to the analog interference signal module. The two moving mechanisms are electrically connected to the control board. The detection line on the inverted frame is also electrically connected to the control board. A power interface and a USB data line interface are provided on one side wall of the base. The power interface is electrically connected to the control board and supplies power to the control board. The USB data line interface is connected to the control board for data.

[0004] In some embodiments of the present invention, the moving mechanism includes a first dual-axis motor, a second dual-axis motor, two first screw rods, two second screw rods and a movable push column, the two first screw rods are parallel and fixed by bearing sleeves at both ends of the first screw rod, the two second screw rods are parallel and fixed by bearing sleeves at both ends of the second screw rod and are respectively located at both ends of the two first screw rods, the two first screw rods are perpendicular to the two second screw rods and form a quadrilateral with each other, the first dual-axis motor has a first active bevel gear plate at both ends of the shaft, the two first screw rods are each sleeved with a first driven bevel gear plate at the ends in the same direction, the two first active bevel gear plates are correspondingly meshed with the first driven bevel gear plate, the second dual-axis motor has a second active bevel gear plate at both ends of the shaft, the two second screw rods are each sleeved with a second driven bevel gear plate at the ends in the same direction, the two second active bevel gear plates are correspondingly meshed with the second driven bevel gear plate; A first slider is correspondingly sleeved on each of the two first screw rods, two parallel first slide rods are connected between the two first slide rods, a second slider is correspondingly sleeved on each of the two second screw rods, two parallel second slide rods are connected between the two second slide rods, a movable push column is sleeved at the intersection of the two first slide rods and the two second slide rods, the first slide rod and the second slide rod are movable and penetrate the movable push column, and a cable junction box is installed on the top of the movable push column.

[0005] In some other embodiments of the present invention, the cable junction box comprises a box body, a box cover, and a coaxial cable end wiring assembly arranged in the box body, the box body is provided with a first wiring hole on a side wall facing the cable rack, a second wiring hole is provided on a side wall adjacent to the first wiring hole on the box body, and the two second wiring holes face the same direction, and the first wiring hole and the second wiring hole are both provided with a row of coaxial cable end wiring assemblies facing the inside of the box body; The coaxial cable end terminal assembly includes a cable clamp, a mesh wire layer holder and a central copper wire clamp arranged in a row, the cable clamp includes a first fixed semicircular ring block, a first movable semicircular ring block and a first push bolt rod, the first fixed semicircular ring block is arranged opposite to the first movable semicircular ring block, one end of the first push bolt rod is rotatably mounted on the back of the first movable semicircular ring block, the first push bolt rod spirally penetrates the mounting block and fixes the mounting block in the box body, the mesh wire layer holder includes a second fixed semicircular ring block, a second movable semicircular ring block and a second push bolt rod, The second fixed semicircular ring block is arranged opposite to the second movable semicircular ring block, one end of the second push bolt rod is rotatably mounted on the back of the second movable semicircular ring block, the second push bolt rod spirally penetrates the mounting block and fixes the mounting block in the box body, the central copper wire clamping member comprises a third fixed semicircular ring block, a third movable semicircular ring block and a third push bolt rod, the third fixed semicircular ring block is arranged opposite to the third movable semicircular ring block, one end of the third push bolt rod is rotatably mounted on the back of the third movable semicircular ring block, the third push bolt rod spirally penetrates the mounting block and fixes the mounting block in the box body; The detection line passes through the box cover, and a positive connection post and a negative connection post are provided in the box body. The two third fixed semicircular ring blocks are connected to the positive connection post through a wire, and the two second fixed semicircular ring blocks are connected to the negative connection post through a wire. After the positive and negative connections on the detection line are electrically connected to the positive and negative connection posts respectively, the box cover is closed and fixed to the box body with bolts.

[0006] In some other embodiments of the present invention, the outer walls of the box body and the box cover are metal outer walls, and the inner walls are insulating plastic layers.

[0007] In some other embodiments of the present invention, the upper plate and the lower plate are both provided with pin holes in a matrix, and the pin holes on the upper plate and the lower plate are arranged correspondingly in the upper and lower parts.

[0008] In other embodiments of the present invention, a coaxial cable detection module is provided on the control board, and a detection line connected to the output terminal of the coaxial cable is connected to the coaxial cable detection module, and the coaxial cable detection module is used to detect a signal output by the coaxial cable.

[0009] An automatic detection method for a coaxial cable is provided, wherein the automatic detection device for a coaxial cable is used for detection. The specific detection steps are as follows: S1: Cut the coaxial cable to be tested to a length that needs to be tested, peel both ends of the coaxial cable to expose the mesh conductor layer and the central copper wire, and install the two ends of the coaxial cable in two cable junction boxes respectively; S2: The connection posts between the two rows of lower connection post groups should be connected in pairs with wires, and the wires should pass through the bottom of the lower board. The connection posts between the two rows of upper connection post groups should be connected in pairs with wires, and the wires should pass through the top of the upper board. S3: Connect the power supply to the power interface, plug the USB data cable into the USB data cable interface and connect it to the computer data, set the transmission signal input from the cable junction box at the input end through the computer, the transmission signal is transmitted from the coaxial cable to the cable junction box at the output end, and then input to the control board, and the control board analyzes the change of the transmission signal. At the same time, before the detection, input interference signals to the connecting wires between the two rows of lower connection column groups 14 and the connecting wires between the two rows of upper connection column groups, and the coaxial cable must pass between the upper board and the lower board; S4: The two moving mechanisms can move the corresponding two cable junction boxes forward, backward, left and right, so as to realize that when the coaxial cable is used for data transmission, when the coaxial cable is stretched or moved, whether the coaxial cable will be stretched or moved to affect the transmission of the transmission signal of the coaxial cable.

[0010] In some other embodiments of the present invention, the upper plate and the lower plate are both provided with pin holes in a matrix, and the pin holes on the upper plate and the lower plate are arranged correspondingly up and down; A pin is inserted from the pin hole of the upper plate into the pin hole of the lower plate, and the coaxial cable is limited in the space between the upper plate and the lower plate as needed. This is to limit the range of motion of the coaxial cable when it is stretched or moved, so as to simulate whether the transmission signal of the coaxial cable is affected when it is stretched or moved in different fixing methods.

[0011] In other embodiments of the present invention, the two moving mechanisms are set to stretch or move at a certain frequency as needed, and perform continuous stretching or moving operations for tens of thousands of times to achieve changes in the signal transmission of the coaxial cable under continuous stretching or movement.

[0012] In the present invention, multiple interference signal lines are distributed around the simulated coaxial cable. When the interference signal lines exist, the coaxial cable can be detected. The influence of the coaxial cable on signal transmission when it is stretched, bent and moved can also be detected. The detection environment is more in line with the actual use environment, and the machine is automated for detection, with higher efficiency and more accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 The present invention is a schematic structural diagram of an automatic detection device for coaxial cables.

[0014] Figure 2 This is a schematic structural diagram of the mobile structure proposed by the present invention.

[0015] Figure 3 This is a schematic diagram of the structure inside the cable junction box proposed by the present invention.

[0016] Figure 4 This is a structural schematic diagram of the two second wiring holes on the cable junction box proposed by the present invention being connected to coaxial cables.

[0017] Figure 5 This is a structural schematic diagram of two first wiring holes on the cable junction box proposed by the present invention being connected to coaxial cables.

[0018] Figure 6 This is a schematic diagram of the distribution of interference signal lines wrapped around the cable rack proposed by the present invention.

[0019] In the figure: 1, base; 11, power interface; 12, USB data line interface; 13, upper flip column group; 14, lower thread column group; 2, moving mechanism; 21, first double-axis motor; 211, shaft of first double-axis motor; 212, first active bevel gear plate; 22, second double-axis motor; 221, shaft of second double-axis motor; 222, second active bevel gear plate; 23, first screw rod; 24, first slider; 25, first slide rod; 26, second screw rod; 27, second slider; 28, second slide rod ; 3. Move the push column; 4. Cable junction box; 41. First wiring hole; 42. Second wiring hole; 43. First fixed semicircular ring block; 431. First movable semicircular ring block; 432. First push bolt rod; 44. Second fixed semicircular ring block; 441. Second movable semicircular ring block; 442. Second push bolt rod; 45. Third fixed semicircular ring block; 451. Third movable semicircular ring block; 452. Third push bolt rod; 5. Cable rack; 6. Coaxial cable; 61. Mesh conductor layer; 62. Center copper wire. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] like Figure 1-6 As shown, an automatic detection device for coaxial cables proposed by the present invention includes a base 1, a cable junction box 4, a moving mechanism 2 for driving the cable junction box 4 to move, a cable rack 5, an interference signal terminal group and a control system; Two mounting grooves are symmetrically arranged near the two ends on the upper surface of the base 1, and a mobile mechanism 2 is installed in the mounting grooves. A cable junction box 4 is installed on each of the two mobile mechanisms 2. An inverted frame is fixedly installed on the base at each mounting groove position, and a detection line is provided on each inverted frame, and a section of the detection line is exposed and connected to the corresponding cable junction box 4. A cable rack 5 is arranged in the middle position of the upper surface of the base 1, and the cable rack 5 includes an upper plate and a lower plate. The four corner positions of the lower surface of the lower plate are fixed to the base 1 by four supporting columns, and the four corner positions of the lower surface of the upper plate are fixed to the four corners of the upper surface of the lower plate by four supporting columns; The movable structure 2 is embedded around the side wall of the installation slot, and the bottom of the cable junction box 4 is slightly higher than the notch of the installation slot (2-5 mm higher), and the coaxial cable 6 is passed through the upper plate and the lower plate.

[0022] The interference signal connection post group includes two rows of lower connection post groups 14 arranged on the base 1 at the two sides of the cable rack 5 facing the installation groove, and two rows of upper flip connection post groups 13 arranged on the base 1 at the two sides of the cable rack 5 facing the base 1. The connection posts of the two rows of lower connection post groups 14 correspond to each other one by one, and the connection posts of the two rows of upper flip connection post groups 13 also correspond to each other one by one. Generally, cables are wound together to work. If the anti-interference ability of some coaxial cables with transmission signals is weak and there are many interference lines around, it is very easy to cause instability of the transmission signal. The two rows of lower connecting column groups 14 pass through the lower plate and are arranged in the same direction as the coaxial cable 6, while the upper connecting column groups 13 are turned over from the lower plate and are staggered with the coaxial cable 6.

[0023] The control system includes a control board and an analog interference signal module on the control board. The lower connecting column group 14 and the upper flip connecting column group 13 are both connected to the analog interference signal module. The two moving mechanisms are electrically connected to the control board. The detection line on the inverted frame is also electrically connected to the control board. A power interface 11 and a USB data line interface 12 are provided on one side wall of the base 1. The power interface 11 is electrically connected to the control board and supplies power to the control board. The USB data line interface 12 is connected to the control board for data.

[0024] The simulated interference signal module can control the output of different interference signals between each connection post, simulate the influence of different interference signals, and set the interference signal strength and type through the connection between the computer and the USB data line interface 12.

[0025] The moving mechanism 2 includes a first dual-axis motor 21, a second dual-axis motor 22, two first screw rods 23, two second screw rods 26 and a moving push column 3. The two first screw rods 23 are parallel and fixed with bearing sleeves at both ends of the first screw rods 23. The two second screw rods 26 are parallel and fixed with bearing sleeves at both ends of the second screw rods 26 and are respectively located at both ends of the two first screw rods 23. The two first screw rods 23 are perpendicular to the two second screw rods 26 and form a quadrilateral with each other. The two ends of the shaft of the first dual-axis motor 21 are sleeved with second screw rods 26. A driving bevel gear plate 212, two first screw rods 23 are sleeved with a first driven bevel gear plate 231 at the ends in the same direction, and the two first driving bevel gear plates 212 are correspondingly meshed with the first driven bevel gear plate 231, and the second dual-axis motor 22 is sleeved with a second driving bevel gear plate 222 at both ends of the shaft, and two second screw rods 26 are sleeved with a second driven bevel gear plate 261 at the ends in the same direction, and the two second driving bevel gear plates 222 are correspondingly meshed with the second driven bevel gear plate 261; A first slider 24 is correspondingly spirally sleeved on the two first screw rods 23, two parallel first slide bars 25 are connected between the two first slide bars 24, a second slider 27 is correspondingly spirally sleeved on the two second screw rods 26, two parallel second slide bars 28 are connected between the two second slide bars 27, a movable push column 3 is sleeved on the two first slide bars 25 and the two second slide bars 28 at the intersection position, the first slide bar 25 and the second slide bar 28 are movably penetrated through the movable push column 3, and a cable junction box 4 is installed on the top of the movable push column 3.

[0026] The principle of the moving mechanism 2 is similar to that of a 3D printer, and the moving structure can realize forward and backward movement and left and right movement, such as Figure 2 As shown, the first dual-axis motor 21 (bearings are sleeved at both ends of the shaft of the dual-axis motor 21 for stability) drives the first active bevel gear plate 212 to rotate, thereby synchronously driving the two first driven bevel gear plates 231 to rotate (the two first screws have opposite thread directions, and similarly, the two second screws have opposite thread directions), so that the two first screws synchronously drive the two first sliders 24 to move, and similarly, the second dual-axis motor 22 drives the two second sliders 27 to move. However, during the driving process, the first slider 24 and the second slider 27 do not move synchronously. The second slider 27 is driven only when the two first sliders 24 do not move, and vice versa. In this way, the movement will be relatively smooth.

[0027] The cable junction box 4 comprises a box body, a box cover and a coaxial cable end wiring assembly arranged in the box body, wherein the box body is provided with a first wiring hole 41 on a side wall facing the cable rack, and a second wiring hole 42 is provided on a side wall adjacent to the first wiring hole 41 on the box body, and the two second wiring holes 42 face the same direction, and the first wiring hole 41 and the second wiring hole 42 are both provided with a row of coaxial cable end wiring assemblies facing the inside of the box body; The coaxial cable end terminal assembly includes a cable clamp, a mesh wire layer holder and a central copper wire clamp arranged in a row, the cable clamp includes a first fixed semicircular ring block 43, a first movable semicircular ring block 431 and a first push bolt rod 432, the first fixed semicircular ring block 43 is arranged opposite to the first movable semicircular ring block 431, one end of the first push bolt rod 432 is rotatably mounted on the back of the first movable semicircular ring block 431, the first push bolt rod 432 spirally penetrates the mounting block and fixes the mounting block in the box body, the mesh wire layer holder includes a second fixed semicircular ring block 44, a second movable semicircular ring block 441 and a second push bolt rod 442, the second The fixed semicircular ring block 44 is arranged opposite to the second movable semicircular ring block 441, one end of the second push bolt rod 442 is rotatably mounted on the back of the second movable semicircular ring block 441, the second push bolt rod 442 spirally penetrates the mounting block and fixes the mounting block in the box body, the central copper wire clamping member includes a third fixed semicircular ring block 45, a third movable semicircular ring block 451 and a third push bolt rod 452, the third fixed semicircular ring block 45 is arranged opposite to the third movable semicircular ring block 451, one end of the third push bolt rod 452 is rotatably mounted on the back of the third movable semicircular ring block 451, the third push bolt rod 452 spirally penetrates the mounting block and fixes the mounting block in the box body; The outer sheath of the coaxial cable 6 is removed to expose the mesh conductor layer 61. A section of the mesh conductor layer 61 at the end is removed to expose the central copper wire 62. Figure 4 and Figure 5 The mesh conductor layer 61 is partially sandwiched between the second fixed semicircular ring block 44 and the second movable semicircular ring block 441, and the second movable semicircular ring block 441 is pushed to move and clamp by rotating the second push bolt rod 442, while the center copper wire 62 is sandwiched between the third fixed semicircular ring block 45 and the third movable semicircular ring block 451, and the third movable semicircular ring block 451 is pushed to move and clamp by rotating the third push bolt rod 452. The first fixed semicircular ring block 43 and the first movable semicircular ring block 431 are used to clamp the outer sheath position of the end of the coaxial cable 6.

[0028] The detection line passes through the box cover, and a positive connection post and a negative connection post 46 are provided in the box body. The two third fixed semicircular ring blocks 45 are connected to the positive connection post through a wire, and the two second fixed semicircular ring blocks 44 are connected to the negative connection post through a wire. After the positive and negative connections on the detection line are electrically connected to the positive and negative connection posts 46 respectively, the box cover is closed and fixed to the box body with bolts.

[0029] The outer walls of the box body and the box cover are metal outer walls, and the inner walls are insulating plastic layers. The box body and the box cover play a shielding role, but the interior will not be conductive due to arc.

[0030] The upper plate and the lower plate are both provided with pin holes in a matrix, and the pin holes on the upper plate and the lower plate are arranged correspondingly up and down. The internal winding direction or the fixing direction of the coaxial cable is realized according to the insertion position of the pin.

[0031] The control board is provided with a coaxial cable detection module, and the detection line connected to the output terminal of the coaxial cable is connected to the coaxial cable detection module. The coaxial cable detection module is used to detect the signal output by the coaxial cable.

[0032] The coaxial cable detection module is used to test the voltage, current and signal type of the transmission signal. The coaxial cable detection module includes a decoder, a voltmeter and an ammeter.

[0033] An automatic detection method for a coaxial cable is provided, wherein the automatic detection device for a coaxial cable is used for detection. The specific detection steps are as follows: S1: Cut the coaxial cable 6 to be tested with a length to be tested, peel both ends of the coaxial cable 6 to expose the mesh conductor layer 61 and the central copper wire 62, and install the two ends of the coaxial cable 6 in two cable junction boxes 4 respectively; S2: The connecting posts of the two rows of lower connecting post groups 14 are connected in pairs with wires, and the wires pass through the bottom of the lower plate, and the connecting posts of the two rows of upper connecting post groups 13 are connected in pairs with wires, and the wires pass through the top of the upper plate; S3: Connect the power supply to the power interface 11, plug the USB data cable into the USB data cable interface 12 and connect it to the computer data, set the transmission signal input from the cable junction box at the input end through the computer, the transmission signal is transmitted from the coaxial cable to the cable junction box 4 at the output end, and then input to the control board, and the change of the transmission signal is analyzed by the control board. At the same time, before the detection, input the interference signal to the connecting wires between the two rows of lower connecting column groups 14 and the connecting wires between the two rows of upper turning connecting column groups 13, and the coaxial cable must pass between the upper board and the lower board; S4: The two moving mechanisms 2 can move the corresponding two cable junction boxes 4 forward, backward, left and right, so as to realize that when the coaxial cable 6 is used for data transmission, when the coaxial cable 6 is stretched or moved, whether the coaxial cable 6 is stretched or moved to affect the transmission of the transmission signal of the coaxial cable 6.

[0034] Connect the coaxial cable 6 according to Figure 4 or Figure 5 The detection is performed by inputting different transmission signals and transmitting them in the coaxial cable 6, and interfering by generating multiple interference signals, or stretching the coaxial cable to move the coaxial cable for detection, or the interference signal and stretching and moving are simultaneously detected. The detection is more in line with actual requirements.

[0035] The upper plate and the lower plate are both provided with pin holes in a matrix, and the pin holes on the upper plate and the lower plate are arranged correspondingly up and down; A pin is inserted from the pin hole of the upper plate into the pin hole of the lower plate, and the coaxial cable 6 is limited in the space between the upper plate and the lower plate as needed. This allows the movable range of the coaxial cable 6 to be limited when the coaxial cable 6 is stretched or moved, so as to simulate whether the transmission signal of the coaxial cable 6 is affected when it is stretched or moved in different fixing methods.

[0036] The two moving mechanisms 2 are set to stretch or move at a certain frequency as required, and continuously stretch or move tens of thousands of times to achieve changes in the signal transmission of the coaxial cable 6 under continuous stretching or movement. Sometimes, the coaxial cable is used for clamping and moving control. Many devices in the factory need to move back and forth continuously, and the coaxial cable 6 also needs to be pulled back and moved. It may be pulled back and forth tens of thousands of times a day. Therefore, repeated pulling back and forth is performed to simulate the effect of pulling or bending on signal transmission.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic detection device for coaxial cables, characterized in that: It comprises a base (1), a cable junction box (4), a moving mechanism (2) for driving the cable junction box (4) to move, a cable rack (5), an interference signal terminal group and a control system; The upper surface of the base (1) is symmetrically provided with two installation grooves near the two ends, and a moving mechanism (2) is installed in the installation groove. A cable junction box (4) is installed on each of the two moving mechanisms (2). An inverted frame is fixedly installed on the base at each installation groove position. Each inverted frame is provided with a detection line and a section of the detection line is exposed and connected to the corresponding cable junction box (4). A cable rack (5) is provided in the middle position of the upper surface of the base (1). The cable rack (5) includes an upper plate and a lower plate. The four corners of the lower surface of the lower plate are fixed to the base (1) by four support columns, and the four corners of the lower surface of the upper plate are fixed to the four corners of the upper surface of the lower plate by four support columns. The interference signal connection post group comprises two rows of lower connection post groups (14) arranged on the base (1) at two sides of the cable rack (5) facing the installation slot, and two rows of upper connection post groups (13) arranged on the base (1) at two sides of the cable rack (5) facing the base (1), the connection posts between the two rows of the lower connection post groups (14) corresponding to each other, and the connection posts between the two rows of the upper connection post groups (13) also corresponding to each other. The control system comprises a control panel and an analog interference signal module provided on the control panel, the lower connecting column group (14) and the upper turning connecting column group (13) are both connected to the analog interference signal module, the two moving mechanisms are electrically connected to the control panel, the detection line on the inverted frame is also electrically connected to the control panel, a power interface (11) and a USB data line interface (12) are provided on a side wall of the base (1), the power interface (11) is electrically connected to the control panel and supplies power to the control panel, and the USB data line interface (12) is connected to the control panel for data.

2. The automatic detection device for coaxial cables according to claim 1, characterized in that: The moving mechanism (2) comprises a first double-axis motor (21), a second double-axis motor (22), two first screw rods (23), two second screw rods (26) and a moving push rod (3), the two first screw rods (23) being parallel and fixed by bearing sleeves at both ends of the first screw rods (23), the two second screw rods (26) being parallel and fixed by bearing sleeves at both ends of the second screw rods (26) and being respectively located at both ends of the two first screw rods (23), the two first screw rods (23) being perpendicular to the two second screw rods (26) and mutually surrounding a quadrilateral, the two ends of the shaft of the first double-axis motor (21) being A first active bevel gear plate (212) is sleeved thereon; two first screw rods (23) are sleeved thereon at the ends in the same direction with a first driven bevel gear plate (231); the two first active bevel gear plates (212) are correspondingly meshed with the first driven bevel gear plates (231); second active bevel gear plates (222) are sleeved thereon at both ends of the shaft of the second dual-axis motor (22); two second screw rods (26) are sleeved thereon at the ends in the same direction with a second driven bevel gear plate (261); the two second active bevel gear plates (222) are correspondingly meshed with the second driven bevel gear plates (261); A first slider (24) is correspondingly sleeved on each of the two first screw rods (23); two parallel first sliders (25) are connected between the two first sliders (24); a second slider (27) is correspondingly sleeved on each of the two second screw rods (26); two parallel second sliders (28) are connected between the two second sliders (27); a movable push column (3) is sleeved on the two first sliders (25) and the two second sliders (28) at a cross position; the first slider (25) and the second slider (28) are movably inserted through the movable push column (3); and a cable junction box (4) is installed on the top of the movable push column (3).

3. An automatic detection device for coaxial cables according to any one of claims 1 or 2, characterized in that: The cable junction box (4) comprises a box body, a box cover and a coaxial cable end wiring assembly arranged in the box body, the box body is provided with a first wiring hole (41) on a side wall facing the cable rack, a second wiring hole (42) is provided on a side wall of the box body adjacent to the first wiring hole (41), and the two second wiring holes (42) face the same direction, and the first wiring hole (41) and the second wiring hole (42) are both provided with a row of coaxial cable end wiring assemblies facing the inside of the box body; The coaxial cable end terminal assembly comprises a cable clamp, a mesh wire layer holder and a central copper wire clamp arranged in a row, the cable clamp comprising a first fixed semicircular ring block (43), a first movable semicircular ring block (431) and a first push bolt rod (432), the first fixed semicircular ring block (43) and the first movable semicircular ring block (431) are arranged opposite to each other, one end of the first push bolt rod (432) is rotatably mounted on the back of the first movable semicircular ring block (431), the first push bolt rod (432) spirally penetrates the mounting block and fixes the mounting block in the box body, the mesh wire layer holder comprises a second fixed semicircular ring block (44), a second movable semicircular ring block (441) and a second push bolt rod (442), the second fixed The semicircular ring block (44) is arranged opposite to the second movable semicircular ring block (441); one end of the second push bolt rod (442) is rotatably mounted on the back of the second movable semicircular ring block (441); the second push bolt rod (442) spirally penetrates the mounting block and fixes the mounting block in the box body; the central copper wire clamping member comprises a third fixed semicircular ring block (45), a third movable semicircular ring block (451) and a third push bolt rod (452); the third fixed semicircular ring block (45) is arranged opposite to the third movable semicircular ring block (451); one end of the third push bolt rod (452) is rotatably mounted on the back of the third movable semicircular ring block (451); the third push bolt rod (452) spirally penetrates the mounting block and fixes the mounting block in the box body; The detection line passes through the box cover, and a positive connection post and a negative connection post (46) are provided in the box body. The two third fixed semicircular ring blocks (45) are connected to the positive connection post through a wire, and the two second fixed semicircular ring blocks (44) are connected to the negative connection post through a wire. After the positive and negative connections on the detection line are electrically connected to the positive and negative connection posts (46) respectively, the box cover is closed and fixed to the box body with bolts.

4. The automatic detection device for coaxial cables according to claim 3, characterized in that: The outer walls of the box body and the box cover are metal outer walls, and the inner walls are insulating plastic layers.

5. The automatic detection device for coaxial cables according to claim 1, characterized in that: The upper plate and the lower plate are both provided with pin holes in a matrix, and the pin holes on the upper plate and the lower plate are arranged correspondingly up and down.

6. The automatic detection device for coaxial cables according to claim 1, characterized in that: The control board is provided with a coaxial cable detection module, and the detection line connected to the output terminal of the coaxial cable is connected to the coaxial cable detection module. The coaxial cable detection module is used to detect the signal output by the coaxial cable.

7. An automatic detection method for a coaxial cable, characterized in that: The automatic detection device for coaxial cables according to any one of claims 1 to 3 is used for detection, and the specific detection steps are as follows: S1: cutting a coaxial cable (6) to be tested of a length to be tested, peeling both ends of the coaxial cable (6) to expose the mesh conductor layer (61) and the central copper wire (62), and installing the two ends of the coaxial cable (6) in two cable junction boxes (4) respectively; S2: The connecting posts between the two rows of lower connecting post groups (14) are connected in pairs with wires, and the wires pass through the bottom of the lower plate, and the connecting posts between the two rows of upper connecting post groups (13) are connected in pairs with wires, and the wires pass through the top of the upper plate; S3: Connect the power supply to the power interface (11), plug the USB data cable into the USB data cable interface (12) and connect it to the computer data, set the transmission signal input from the cable junction box at the input end through the computer, the transmission signal is transmitted from the coaxial cable to the cable junction box (4) at the output end, and then input to the control board, and the control board analyzes the change of the transmission signal. At the same time, before the detection, input the interference signal to the connecting wires between the two rows of the lower connecting column groups (14) and the connecting wires between the two rows of the upper turning connecting column groups (13), and the coaxial cable must pass between the upper board and the lower board; S4: The two moving mechanisms (2) can move the corresponding two cable junction boxes (4) forward, backward, left and right, so as to realize that when the coaxial cable (6) is used for data transmission, when the coaxial cable (6) is stretched or moved, whether the coaxial cable (6) is stretched or moved to affect the transmission of the transmission signal of the coaxial cable (6).

8. The automatic detection method for coaxial cables according to claim 6, characterized in that: The upper plate and the lower plate are both provided with pin holes in a matrix, and the pin holes on the upper plate and the lower plate are arranged correspondingly up and down; A pin is inserted from the pin hole of the upper plate into the pin hole of the lower plate, and the coaxial cable (6) is limited in the space between the upper plate and the lower plate as required, so that when the coaxial cable (6) is stretched or moved, the range of movement of the coaxial cable (6) is limited, so as to simulate whether the transmission signal of the coaxial cable (6) is affected when it is stretched or moved in different fixing methods.

9. The automatic detection method for coaxial cables according to claim 6, characterized in that: The two moving mechanisms (2) are set to stretch or move at a certain frequency as required, and continuously stretch or move tens of thousands of times, so as to achieve changes in the signal transmission of the coaxial cable (6) when the coaxial cable (6) is continuously stretched or moved.

Images