Performance detection equipment for cable protection pipe

Abstract

The invention discloses performance detection equipment for a cable protection pipe, which is applied to the technical field of performance detection of the cable protection pipe, and comprises a base, a supporting mechanism, a bending mechanism and two sets of resetting mechanisms, the supporting mechanism, the bending mechanism and the two sets of resetting mechanisms are all arranged at the top of the base, the bending mechanism is arranged at the front side of the supporting mechanism, and the resetting mechanisms are arranged on the supporting mechanism. The two reset mechanisms are arranged on the left side and the right side of the supporting mechanism. The supporting mechanism comprises a supporting assembly, a pressure detection assembly and a visual detection assembly, the supporting assembly is arranged on the base, the pressure detection assembly and the visual detection assembly are both arranged on the supporting assembly, the supporting assembly comprises a first support, a first sliding block, a movable block and a supporting plate, and a first pressure sensor is arranged at the top of the supporting plate. And the pressure sensor I is electrically connected with a pressure detection module. According to the invention, the bending resistance of the cable protection pipe under various conditions can be detected.

Description

Technical Field

[0001] The present invention relates to the technical field of performance detection of cable protection pipes, and particularly to a performance detection device for cable protection pipes. Background Art

[0002] With the continuous development of the power communication industry, cable protection pipes have been widely used. A cable protection pipe is a protective pipe with an isolation effect installed at the intersection of communication cables and power lines to avoid short-circuit accidents caused by broken power lines and thus affect communication cables.

[0003] Since some cable areas are bent and turned during the routing of cables in the cable system, the protection pipe needs to be bent synchronously. Therefore, during the detection process, it is necessary to detect the bending resistance performance of the protection pipe. However, in the current detection process, the detection method of applying external pressure to the protection pipe to make it bend and deform and checking whether the protection pipe is damaged is usually adopted. However, in this detection process, the distance between the pressure application point and the bending point that bends the protection pipe during the use of the protection pipe cannot be reflected, which affects the overall bending situation of the protection pipe. Therefore, simply applying pressure to the protection pipe is not sufficient to simulate the actual use situation of the protection pipe. And when the protection pipe is bent and deformed under external non-continuous impact during use, the current detection process cannot meet the actual detection requirements.

[0004] Therefore, it is necessary to provide a performance detection device for cable protection pipes to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a performance detection device for cable protection pipes, which can realize the bending resistance performance detection of cable protection pipes under various conditions, so as to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A performance detection device for cable protection pipes, including a base, a support mechanism, a bending mechanism, and two groups of reset mechanisms. The support mechanism, the bending mechanism, and the two groups of reset mechanisms are all arranged on the top of the base. The bending mechanism is arranged on the front side of the support mechanism, and the two groups of reset mechanisms are arranged on the left and right sides of the support mechanism; The support mechanism includes a support component, a pressure detection component, and a visual detection component. The support component is arranged on the base, and the pressure detection component and the visual detection component are both arranged on the support component. The support component includes a bracket one, a slider one, a movable block, and a support plate. A pressure sensor one is arranged on the top of the support plate. The pressure sensor one is electrically connected to a pressure detection module. The pressure detection module is used to detect the pressure when bending the protection pipe and make a judgment according to the obtained pressure data. The pressure detection component includes two groups of detection frames, a pressure sensor two, and a resisting block; The vision detection component includes the second bracket and the camera. The camera is electrically connected to a vision recognition module, which is used to obtain the images captured by the camera and identify the deformation of the protective tube; The bending mechanism includes a support frame, a bending component and two sets of jigs. The support frame is arranged on the base, the bending component is arranged on the support component, and the two sets of jigs are arranged on the support frame; The reset mechanism includes a movable component and a restoring component. The movable component is arranged on the top of the base, and the restoring component is arranged on the movable component.

[0007] According to the above technical solution, the first bracket is fixed to the top of the base. A first slide rail is fixedly connected to the top of the first bracket. A first motor is fixedly connected to one side of the first bracket close to the bending mechanism. A first slider and a movable block are arranged inside the first slide rail. The first slider is slidably connected to the first slide rail. The movable block is arranged inside the first slide rail. The first slider is connected to the output end of the first motor by a screw drive; A number of first fasteners are provided on the top of the first slide rail. On both sides of the bottom of the movable block perpendicular to the setting direction of the first slide rail, first limit holes are provided, and the first fasteners are arranged inside the first limit holes.

[0008] According to the above technical solution, sliding columns are slidably connected to the same height of the first slider and the movable block respectively. One ends of the two sets of sliding columns close to each other are slidably connected to a connecting column. Springs are sleeved on the sliding columns, and both ends of the springs are fixedly connected to the connecting column and the sliding column respectively. A lifting frame is sleeved on the connecting column. A support plate is rotatably connected to the top of the lifting frame. On both sides of the lifting frame perpendicular to the setting direction of the connecting column, first chutes are provided, and second fasteners are arranged inside the first chutes.

[0009] According to the above technical solution, two sets of detection frames are respectively arranged on the tops of the first slider and the movable block. A second pressure sensor is fixed inside the detection frame. A rubber pad is fixedly connected to the side of the second pressure sensor. The second pressure sensor is electrically connected to a pressure detection module; Second chutes are provided on the upper and lower sides inside the detection frame. An activity frame is slidably connected inside the detection frame. A resisting block is arranged inside the activity frame. The resisting block is rotatably connected to the activity frame. Both ends of the resisting block are arranged inside the second chutes, and the resisting block is slidably connected to the detection frame.

[0010] According to the above technical solution, the second bracket is fixed to one side of the first slider close to the bending mechanism, and the camera is fixed to the bottom of the second bracket.

[0011] According to the above technical solution, the support frame includes a third bracket, a hydraulic cylinder and four sets of limit columns. The hydraulic cylinder and the limit columns are fixed to the top of the base. The third bracket is slidably connected to the limit columns, and the output end of the hydraulic cylinder is fixedly connected to the third bracket.

[0012] According to the above technical solution, the bending assembly includes a second motor, a first cylinder, two groups of first connecting rods, and two groups of second connecting rods. A second slide rail is fixedly connected to the top of the third bracket. The second motor is fixed to the side of the second slide rail away from the first bracket. A second slider is slidably connected to the top of the second slide rail. The output end of the second motor is connected to the second slider by a screw drive. The first cylinder is fixed to the top of the second slider; The output end of the first cylinder is fixedly connected with a connecting piece. The two sides of the connecting piece perpendicular to the setting direction of the first cylinder are respectively hinged to the two groups of first connecting rods. The side of the connecting piece away from the first cylinder is hinged to the two groups of second connecting rods. The two groups of second connecting rods are respectively arranged on the upper and lower sides of the connecting piece. The two groups of second connecting rods are respectively slidably connected to the first connecting rods; A through groove is provided on the second connecting rod, a fastening piece is arranged inside the through groove, a mounting hole is provided on the first connecting rod, and the end of the fastening piece is arranged inside the mounting hole. The fastening piece can be a bolt or other fastening pieces that can play a fastening role; The clamp is hinged to the end of the first connecting rod away from the connecting piece.

[0013] According to the above technical solution, the movable assembly includes a movable platform and a third motor. The movable platform is arranged on the top of the base. One end of the movable platform close to the first bracket is rotatably connected to the base at the bottom. A plurality of universal wheels are arranged at the bottom of the end of the movable platform away from the first bracket. A movable seat is arranged on the top of the movable platform. An arc-shaped rack is fixedly connected to the side of the top of the base away from the first bracket. The third motor is fixed to the top of the end of the movable platform away from the first bracket. The output end of the third motor is connected to the arc-shaped rack by gear meshing.

[0014] According to the above technical solution, the restoration assembly includes a robot, a rotating shaft, a connecting shaft, and a plurality of fixing blocks. The robot is fixed to the top of the movable seat. The end of the robot is rotatably connected to a rotating shaft. The end of the rotating shaft away from the robot is rotatably connected to the connecting shaft. One of the plurality of fixing blocks is fixed to the connecting shaft, and the remaining fixing blocks are fixed to the rotating shaft. A plurality of second cylinders are arranged in a circumferential manner in the radial direction of the connecting shaft. The second cylinders are fixedly connected to the fixing blocks. The output end of the second cylinder is fixedly connected with a clamping seat.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: In the present invention, by providing a support mechanism, a bending mechanism, and a reset mechanism, various switchable detections of the cable protection pipe can be realized, the dynamic adjustment of the bending angle of the cable protection pipe can be achieved, and at the same time, the internal shape of the protection pipe can be automatically restored after the detection is completed, and the vision detection module is triggered to perform a secondary evaluation on the restored protection pipe to verify its anti-fatigue property and restoration ability, which is beneficial to improving the diversity and accuracy of the performance detection of the protection pipe, and is also beneficial to improving the detection efficiency. Description of the Drawings

[0016] The accompanying drawings are used to provide a further understanding of the present invention and form a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a top view schematic diagram of a partial structure of the present invention; Figure 3 is an exploded schematic diagram of a partial structure of the support mechanism and the bending mechanism of the present invention; Figure 4 is of the present invention Figure 3 schematic diagram of the enlarged structure of area A therein; Figure 5 is a side sectional view schematic diagram of the support mechanism and the bending mechanism of the present invention; Figure 6 is of the present invention Figure 5 schematic diagram of the enlarged structure of area B therein; Figure 7 is of the present invention Figure 1 schematic diagram of the enlarged structure of area C therein; Figure 8 is a schematic diagram of the overall structure of the reset mechanism of the present invention; Figure 9 is of the present invention Figure 8 schematic diagram of the enlarged structure of area D therein; In the figure: 1. Base; 2. Support mechanism; 21. First bracket; 22. First slide rail; 23. First motor; 24. First slider; 25. Movable block; 26. Second limiting hole; 27. First fastener; 28. Detection frame; 29. Second pressure sensor; 210. Rubber pad; 211. Movable frame; 212. Block; 213. Second chute; 214. Sliding column; 215. Connecting column; 216. Spring; 217. Lifting frame; 218. Support plate; 219. Second fastener; 220. Second bracket; 221. Camera; 3. Bending mechanism; 31. Third bracket; 32. Hydraulic cylinder; 33. Limiting column; 34. Second motor; 35. Second slide rail; 36. Second slider; 37. First cylinder; 38. Connector; 39. First connecting rod; 310. Second connecting rod; 311. Fastener; 312. Through groove; 313. Fixture; 4. Reset mechanism; 41. Movable platform; 42. Third motor; 43. Arc-shaped rack; 44. Robot; 45. Rotating shaft; 46. Connecting shaft; 47. Fixed block; 48. Second cylinder; 49. Clamping seat; 410. Moving seat. Detailed implementation manners

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1 - 9 , the present invention provides a technical solution: a performance detection device for a cable protection pipe, including a base 1, a support mechanism 2, a bending mechanism 3, and two groups of reset mechanisms 4. The support mechanism 2, the bending mechanism 3, and the two groups of reset mechanisms 4 are all arranged on the top of the base 1. The bending mechanism 3 is arranged on the front side of the support mechanism 2, and the two groups of reset mechanisms 4 are arranged on the left and right sides of the support mechanism 2. The support mechanism 2 is used to provide support for the protection pipe during detection and testing. The bending mechanism 3 is used to bend and stretch the protection pipe, and the reset mechanism 4 is used to internally restore the protection pipe.

[0019] Specifically, as Figures 1 - 3 shown, the support mechanism 2 includes a support component, a pressure detection component, and a visual detection component. The support component is arranged on the base 1, and the pressure detection component and the visual detection component are both arranged on the support component. The support component is used to provide support and limit for the protection pipe. The pressure detection component is used to detect the force on the protection pipe during bending, and the visual detection component is used to detect the deformation of the protection pipe.

[0020] Further, as Figures 1 - 4 and Figure 6 shown, the support component includes a bracket one 21, a slider one 24, a movable block 25, and a support plate 218. The bracket one 21 is fixed to the top of the base 1. A slide rail one 22 is fixedly connected to the top of the bracket one 21. A motor one 23 is fixedly connected to one side of the bracket one 21 close to the bending mechanism 3. The slider one 24 and the movable block 25 are arranged inside the slide rail one 22. The slider one 24 is slidably connected to the slide rail one 22. The movable block 25 is arranged inside the slide rail one 22. The slider one 24 is connected to the output end of the motor one 23 by a screw drive. The movable block 25 is arranged outside the screw rod and is not connected to the screw rod. The motor one 23 is used to drive the slider one 24 to move in the slide rail one 22 in a direction close to or away from the movable block 25 through screw drive; A number of fasteners one 27 are opened on the top of the slide rail one 22. On both sides of the bottom of the movable block 25 perpendicular to the setting direction of the slide rail one 22, limit holes one are opened. Fasteners one 27 are arranged in the limit holes one. The end of the fastener one 27 penetrates into the limit hole two 26. The fastener one 27 is used to connect the movable block 25 and the slide rail one 22 to limit the movable block 25.

[0021] Further, as Figures 4 - 6As shown in the figure, sliding columns 214 are respectively and slidably connected to the slider 1 24 and the movable block 25 at the same height. A connecting column 215 is slidably connected to the closer ends of the two groups of sliding columns 214. A spring 216 is sleeved on the sliding column 214. The two ends of the spring 216 are respectively fixedly connected to the connecting column 215 and the sliding column 214. A lifting frame 217 is sleeved on the connecting column 215. A support plate 218 is rotatably connected to the top of the lifting frame 217. A first pressure sensor is arranged on the top of the support plate 218. On both sides of the lifting frame 217 perpendicular to the setting direction of the connecting column 215, a first chute is arranged. A second fastener 219 is arranged in the first chute. The second fastener 219 is used to limit the position of the lifting frame 217 on the connecting column 215, so as to adjust the height of the support plate 218. The first pressure sensor is electrically connected to a pressure detection module. The pressure detection module is used to detect the pressure when bending the protection tube and make a judgment according to the obtained pressure data.

[0022] Further, as Figures 3 - 4 shown, the pressure detection component includes two detection frames 28, a second pressure sensor 29 and a blocking block 212. The two detection frames 28 are respectively arranged on the tops of the slider 1 24 and the movable block 25. The second pressure sensor 29 is fixed inside the detection frame 28. The second pressure sensor 29 is electrically connected to the pressure detection module. A rubber pad 210 is fixedly connected to the side of the second pressure sensor 29. The rubber pad 210 is used to buffer the pressure of squeezing the second pressure sensor 29 when bending the protection tube, so as to avoid sudden impact damage to the rubber pad 210. Chute two 213 is arranged on the upper and lower sides inside the detection frame 28. A movable frame 211 is slidably connected inside the detection frame 28. The blocking block 212 is arranged inside the movable frame 211. The blocking block 212 is rotatably connected to the movable frame 211. The two ends of the blocking block 212 are arranged in the chute two 213. The blocking block 212 is slidably connected to the detection frame 28.

[0023] Further, as Figure 3 and Figure 5 shown, the visual detection component includes a second bracket 220 and a camera 221. The second bracket 220 is fixed to one side of the slider 1 24 close to the bending mechanism 3. The camera 221 is fixed to the bottom of the second bracket 220. The camera 221 is used to photograph the protection tube before, during and after the detection. The camera 221 is electrically connected to a visual recognition module. The visual recognition module is used to obtain the picture taken by the camera 221 and identify the deformation condition of the protection tube.

[0024] It should be noted that the first fastener 27 and the second fastener 219 can both be bolts, or other fasteners that can play a fastening role.

[0025] In actual operation, the staff adjusts the position of the first fastener 27 in the second limiting hole 26 on the first slide rail 22 according to the diameter and shape of the cable protection pipe to be actually detected, so as to adjust the position where the movable block 25 is located. By adjusting the second fastener 219, the position of the lifting frame 217 on the connecting column 215 is adjusted, thereby adjusting the height of the support plate 218. Then, the protection pipe is placed on the support plate 218. At this time, the first motor 23 is controlled to start rotating forward, and the first slider 24 is driven to approach the movable block 25 through screw drive, so as to clamp the protection pipe. On the contrary, controlling the first motor 23 to start rotating in reverse can release the clamping of the protection pipe. When the first motor 23 is started to drive the first slider 24 to approach or move away from the movable block 25, under the action of the elastic force or pulling force of the spring 216, the connecting column 215 can be kept in the central position between the first slider 24 and the movable block 25.

[0026] Specifically, as Figures 1 - 3 and Figure 7 shown, the bending mechanism 3 includes a support frame, a bending assembly and two groups of clamps 313. The support frame is arranged on the base 1, the bending assembly is arranged on the support assembly, and the two groups of clamps 313 are arranged on the support frame. The support frame is used to provide support for the bending assembly and adjust the height of the bending assembly. The bending assembly is used to bend and deform the protection pipe on the support mechanism 2, and the clamp 313 is used to clamp the protection pipe to be detected.

[0027] Further, as Figures 1 - 3 shown, the support frame includes a third bracket 31, a hydraulic cylinder 32 and four groups of limiting columns 33. The hydraulic cylinder 32 and the limiting columns 33 are fixed on the top of the base 1. The third bracket 31 is slidably connected with the limiting columns 33. The output end of the hydraulic cylinder 32 is fixedly connected with the third bracket 31. The telescopic movement of the hydraulic cylinder 32 is used to drive the third bracket 31 to lift, so as to adjust the height of the bending assembly above the third bracket 31. The limiting columns 33 are used to limit the third bracket 31 to ensure the stable lifting of the third bracket 31.

[0028] Further, as Figure 3 and Figure 7 shown, the bending assembly includes a second motor 34, a first cylinder 37, two groups of first connecting rods 39 and two groups of second connecting rods 310. A second slide rail 35 is fixedly connected to the top of the third bracket 31. The second motor 34 is fixed on the side of the second slide rail 35 away from the first bracket 21. A second slider 36 is slidably connected to the top of the second slide rail 35. The output end of the second motor 34 is connected with the second slider 36 by screw drive. The first cylinder 37 is fixed on the top of the second slider 36. The second motor 34 is used to drive the second slider 36, and the second slider 36 drives the first cylinder 37 to approach or move away from the second motor 34.

[0029] One end of the output of the first cylinder 37 is fixedly connected with a connecting piece 38. The connecting piece 38 is in a "cross" shape. On both sides of the connecting piece 38 perpendicular to the setting direction of the first cylinder 37, they are respectively hinged with two groups of first connecting rods 39. One side of the connecting piece 38 away from the first cylinder 37 is hinged with two groups of second connecting rods 310. The two groups of second connecting rods 310 are respectively arranged on the upper and lower sides of the connecting piece 38, and the two groups of second connecting rods 310 are respectively slidably connected with the first connecting rods 39.

[0030] A through groove 312 is arranged on the second connecting rod 310, a fastening piece 311 is arranged inside the through groove 312, an installation hole is arranged on the first connecting rod 39, and the end of the fastening piece 311 is arranged inside the installation hole. The fastening piece 311 can be a bolt or other fastening pieces that can play a fastening role.

[0031] The clamp 313 is hinged to the end of the first connecting rod 39 away from the connecting piece 38. The clamp 313 can realize opening and closing and adjustment of the inner diameter, so as to facilitate placing the protection tube and adapting to protection tubes of different diameters.

[0032] In actual operation, the telescopic movement of the hydraulic cylinder 32 can drive the bending assembly above the third support 31 to rise and fall. When the second motor 34 starts to rotate forward, it can drive the second slider 36 and the first cylinder 37 on the second slider 36 to move towards the side close to the second motor 34 through screw transmission. On the contrary, when the second motor 34 starts to rotate in reverse, it drives the first cylinder 37 on the second slider 36 to move towards the side away from the first slider 24. When the fastening piece 311 is only used to limit the position of the second connecting rod 310 and does not completely fix the positions of the second connecting rod 310 and the first connecting rod 39, that is, the angle between the two groups of first connecting rods 39 is variable at this time. When the first cylinder 37 expands and contracts, driving the connecting piece 38 to approach or move away from the first slider 24, the bending of the protection tube at a fixed angle can be realized; when the fastening piece 311 is used to limit the position of the second connecting rod 310 and fix the positions of the second connecting rod 310 and the first connecting rod 39, that is, the angle between the two groups of first connecting rods 39 is fixed. When the first cylinder 37 expands and contracts, driving the connecting piece 38 to approach or move away from the first slider 24, the bending of the protection tube at a variable angle can be realized; when bending the protection tube, the clamp 313 can be used to fix the protection tube, or only the clamp 313 can be used to limit the position of the protection tube.

[0033] Specifically, as Figure 1 、 Figure 8 and Figure 9 shown, the reset mechanism 4 includes a movable component and a restoring component. The movable component is arranged on the top of the base 1, and the restoring component is arranged on the movable component. The movable component is used to adjust the position of the restoring component, and the restoring component is used to restore the protection tube.

[0034] Furthermore, as Figure 1 and Figure 8As shown in the figure, the movable component includes a movable platform 41 and a third motor 42. The movable platform 41 is arranged on the top of the base 1. The bottom of one end of the movable platform 41 close to the first support 21 is rotatably connected to the base 1. The bottom of the other end of the movable platform 41 away from the first support 21 is provided with a plurality of universal wheels. A movable seat 410 is arranged on the top of the movable platform 41. An arc-shaped rack 43 is fixedly connected to one side of the top of the base 1 away from the first support 21. The third motor 42 is fixed to the top of the other end of the movable platform 41 away from the first support 21. The output end of the third motor 42 is connected to the arc-shaped rack 43 by gear meshing. The third motor 42 is used to drive the reset mechanism 4 to rotate forward and backward around the rotation connection with the base 1.

[0035] Further, as Figure 8 and Figure 9 shown in the figure, the restoration component includes a robot 44, a rotating shaft 45, a connecting shaft 46 and a plurality of fixing blocks 47. The robot 44 is fixed to the top of the movable seat 410. One end of the robot 44 is rotatably connected to the rotating shaft 45. The other end of the rotating shaft 45 away from the robot 44 is rotatably connected to the connecting shaft 46. One group of the plurality of fixing blocks 47 is fixed on the connecting shaft 46, and the remaining fixing blocks 47 are fixed on the rotating shaft 45. A plurality of second cylinders 48 are arranged circumferentially in the radial direction of the connecting shaft 46. The second cylinders 48 are fixedly connected to the fixing blocks 47. The second cylinders 48 are double-output cylinders. The output ends of the second cylinders 48 are fixedly connected to clamping seats 49. The connecting shaft 46 is used to adaptively adjust the angle between the fixing blocks 47 on the connecting shaft 46 and the fixing blocks 47 on the rotating shaft 45. The second cylinders 48 are used to control the telescopic movement of the clamping seats 49 to adapt to cable protection tubes with different inner diameters, so as to achieve the effect of resetting protection tubes with different inner diameters.

[0036] In actual operation, according to actual needs, control the third motor 42 to start rotating forward. Through the meshing of the gear and the arc-shaped rack 43, drive the movable platform 41 to rotate clockwise around the rotation connection with the base 1. On the contrary, when the third motor 42 starts rotating backward, drive the movable platform 41 to rotate counterclockwise around the rotation connection with the base 1. The universal wheels are used to assist the rotation and provide support at the same time. The movable seat 410 is used to adjust the distance between the robot 44 and the first support 21, so that the second cylinders 48 and the clamping seats 49 on the rotating shaft 45 and the connecting shaft 46 can extend into the inside of the protection tube. Then, according to the inner diameter of the protection tube, control the telescopic movement of the second cylinders 48 so that the end of the clamping seat 49 can fit the inner wall of the protection tube. At the same time, control the rotation of the rotating shaft 45, and realize the radial restoration of the protection tube by means of radial expansion. At the end of the rotating shaft 45, due to the arrangement of the connecting shaft 46 rotatably connected to the rotating shaft 45, it can adapt to the adjustment of the bending part, and thus can also realize the restoration of the bending part.

[0037] It should be noted that the moving seat 410 can adopt the transmission mode of a motor combined with a rack and pinion, and move along the setting direction of the movable platform 41 on the top of the movable platform 41; a driving device for driving the rotation of the rotating shaft 45 is provided at the end of the robot 44, and the driving device can be a motor.

[0038] Detection method of the performance detection equipment for cable protection pipes: Step 1: The staff adjusts the heights of the lifting frame 217 and the second slide rail 35, and uses tools to place the protection pipe to be detected on the support plate 218, with both ends of the protection pipe arranged inside the fixture 313.

[0039] Step 2: According to the performance detection requirements of the protection pipe to be detected, the staff marks the detection points and detection lines on the top of the protection pipe, and fixes the positions of the protection pipe, the second connecting rod 310 and the first connecting rod 39.

[0040] Specifically, the staff uses a marker pen on the top of the protection pipe to set marker points or marker lines as needed. At least 3 marker points are set, and one of them is set at the center of the top of the support plate 218.

[0041] Before detection, the protection pipe is placed on the support plate 218, and the protection pipe is clamped and limited by the abutting blocks 212 on the first slider 24 and the abutting blocks 212 on the movable block 25. During detection, the first motor 23 starts to reverse, which can release the clamping of the protection pipe and enable the following detection methods: Detection method 1: Adjust the second motor 34 to start, so that the fixture 313 can clamp the protection pipe at the set position of the protection pipe. The fastener 311 is used to limit the position of the second connecting rod 310 and at the same time limit the angle between the second connecting rod 310 and the first connecting rod 39. At this time, the first cylinder 37 contracts, driving both ends of the protection pipe to move towards the side close to the first cylinder 37. At this time, the abutting block 212 on the top of the second motor 34 plays the role of a fulcrum. The pressure detection module obtains the pressure data detected by the second pressure sensor 29 on the first slider 24. At the same time, because the fixture 313 does not clamp the protection pipe tightly, during bending, the clamping position is fixed, and it can also play a stretching role when bent to a certain extent, which is suitable for the situation of bending the protection pipe into a small angle.

[0042] Detection method 2: The fixture 313 is used to limit the position of the protection tube. The fastener 311 is only used to limit the position of the second connecting rod 310 and does not limit the angle between the second connecting rod 310 and the first connecting rod 39. At this time, the first cylinder 37 contracts, driving both ends of the protection tube to move towards the side close to the first cylinder 37. At this time, the abutting block 212 on the top of the second motor 34 acts as a fulcrum. The pressure detection module obtains the pressure data detected by the second pressure sensor 29 on the first slider 24. At the same time, since the fixture 313 is only used to limit the position of the protection tube, when the first cylinder 37 contracts, the first connecting rod 39 hinged to the connecting member 38 and the fixture 313 hinged to the first connecting rod 39 will adapt to the position change during the contraction of the first cylinder 37, realizing that while bending the protection tube, the first connecting rod 39 gradually moves towards both ends of the protection tube, adjusting the effect of limiting the position of the protection tube, which is applicable to the case of bending the protection tube at a large angle.

[0043] Before detection, the protection tube is placed on the support plate 218, and is clamped and limited by the abutting blocks 212 on the first slider 24 and the abutting blocks 212 on the movable block 25. During detection, the clamping of the protection tube is still maintained, and the following detection methods can be carried out: Detection method 3: The adjusting motor 34 is started, so that the fixture 313 can clamp the protection tube at the set position of the protection tube. The fastener 311 is used to limit the position of the second connecting rod 310 and limit the angle between the second connecting rod 310 and the first connecting rod 39 at the same time. The hydraulic cylinder 32 is started to extend or contract to drive the third support 31 to rise or fall, driving both ends of the protection tube to rise or fall synchronously, and the protection tube can be bent vertically. Preferably, the hydraulic cylinder 32 is started to contract, driving both ends of the protection tube to descend. At this time, the top of the support plate 218 acts as a fulcrum. The pressure detection module obtains the pressure data detected by the first pressure sensor on the support plate 218 on the first slider 24 and the pressure data detected by the second pressure sensor 29 on the top of the first slider 24 and the second pressure sensor 29 on the top of the movable block 25, and performs a second bend in the direction perpendicular to the plane where the existing bend is located, thereby improving the accuracy of the performance detection of the protection tube; Detection method 4: The fixture 313 is used to limit the position of the protection tube. The first motor 23 is controlled to start rotating forward, and the first slider 24 is started to move closer to the movable block 25, so that the abutting blocks 212 above the first slider 24 and the movable block 25 clamp the protection tube, so that the deformation ability of the protection tube when being extruded can be obtained.

[0044] It should be noted that when the first cylinder 37 contracts, the first cylinder 37 on the second slider 36 can be driven to move away from the first slider 24 by starting the reverse rotation of the second motor 34, further increasing the distance between the connecting member 38 and the first slider 24, so as to improve the bending effect. Similarly, in the above detection method, the protection tube can be bent in the reverse direction by extending the first cylinder 37. The corresponding detection method 1 is still applicable to the case of bending the protection tube into a small angle, and the corresponding detection method 2 is still applicable to the case of bending the protection tube into a large angle. At the same time, by controlling the second motor 34 to start rotating forward, the first cylinder 37 on the second slider 36 is driven to move closer to the first slider 24, further reducing the distance between the first cylinder 37 and the first slider 24. The telescopic movement of the hydraulic cylinder 32 can be applied to sudden external force pressure, while the start of the second motor 34 can be used for continuous external force pressure. At this time, the pressure data detected by the second pressure sensor 29 above the movable block 25 are all obtained by the pressure detection module. In actual application, including but not limited to the specific detection methods described above, various forms of combinations can also be carried out through the clamping or limiting of the protection tube by the fixture 313, the telescopic movement of the first cylinder 37, the forward and reverse rotation of the second motor 34, the telescopic movement of the hydraulic cylinder 32, the clamping or limiting of the protection tube by the first slider 24 and the movable block 25, etc., so as to realize the performance detection in multiple ways and expand the applicable range of performance detection.

[0045] Step 3: During the bending process, the visual recognition module and the pressure detection module obtain relevant data and judge the performance detection result of the protection tube according to the obtained data.

[0046] Specifically, the visual detection module continuously obtains the captured images of the camera 221, identifies the center line and the positions of the marking points on the top of the protection tube, so as to obtain the deformation route when the protection tube is bent. At the same time, it can identify the distance between adjacent marking points or the length of the marking line. The distance between adjacent marking points is denoted as l, the length of the marking line is denoted as l’, and the minimum diameter is denoted as d. The visual detection module identifies the initial distance between adjacent marking points or the length of the marking line and the minimum diameter of the protection tube before bending. The initial distance between adjacent marking points is denoted as L, i ∈ (1, k - 1), k is the number of marking points, the initial length of the marking line is denoted as L’, and the initial minimum diameter is D. The visual detection module is provided with an extension coefficient for the distance between adjacent marking points and an extension coefficient for the marking line after bending. The extension coefficient for the distance between adjacent marking points is denoted as n, and the extension coefficient for the marking line is denoted as m. Both n and m are coefficients greater than 1.

[0047] The pressure detection module acquires the pressure data detected by two groups of pressure sensors two 29 and pressure sensor one during bending. The pressure data detected by pressure sensor two 29 located above slider one 24 is denoted as f1, the pressure data detected by pressure sensor two 29 located above movable block 25 is denoted as f2, and the pressure data detected by pressure sensor one is denoted as f3; In the pressure detection module, there are set the maximum anti-bending pressure value and the range interval of the clamping force during bending. The maximum anti-bending pressure value is denoted as F, and the range interval of the clamping force is denoted as the clamping force interval that can clamp the protection tube without causing the protection tube to deform. The clamping force interval is denoted as (F1, F2), where F1 is the minimum force allowed to play a clamping role, and F2 is the maximum force allowed to play a clamping role without causing deformation.

[0048] In detection method one and detection method two, if f1, f2 ≥ F and l ∈ (L, nL), it means the protection tube has good anti-deformation ability and certain rigidity; if f1, f2 ≥ F and l ≥ nL, it means the protection tube has good anti-deformation ability and good toughness; if f1, f2 < F, it means the protection tube has poor anti-deformation ability, and in this case, bending fracture will occur.

[0049] In detection method three, when controlling motor one 23 to start and making f1, f2 ∈ (F1, F2) for detection, the minimum diameter detection and judgment are not carried out; when making f1, f2 ∈ (F2, 2F2) for detection, the minimum diameter detection and judgment are carried out. If d = D, it means the protection tube has strong anti-extrusion deformation ability; if d < D, it means the protection tube has poor anti-extrusion deformation ability. Among them, the judgment method of the pressure data detected by support plate 218 is the same as that in detection method one and detection method two. If f3 ≥ F and l ∈ (L, nL), it means the protection tube has good anti-deformation ability and certain rigidity; if f3 ≥ F and l ≥ nL, it means the protection tube has good anti-deformation ability and good toughness; if f3 < F, it means the protection tube has poor anti-deformation ability, and in this case, bending fracture will occur or part of the pulling or pressing force given by fixture 313 during the telescoping of cylinder one 37 will be absorbed by the deformation part.

[0050] Step four: Control the reset mechanism 4 to restore the protection tube after bending and detection, and perform visual detection again.

[0051] Specifically, control the reset mechanism 4 to restore the protection tube after bending and detection, then repeat step two to verify its anti-fatigue property and restoration ability. According to actual needs, after completing the above detections, by repeating step two and step three for the same protection tube to increase the detection method, the accuracy of the obtained detection results can be further ensured.

[0052] Step five: After the detection is completed, the staff uses tools to remove the protection tube.

[0053] Through the above method, the bending performance test of the cable protection pipe can be realized, and the cable protection pipe after the detection can be restored and detected again, so as to obtain the detection of the anti-deformation and restoration ability of the cable protection pipe, and further improve the diversity and accuracy of the performance detection of the cable protection pipe.

[0054] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0055] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A performance detection device for cable protection pipes, comprising a base (1), a support mechanism (2), a bending mechanism (3) and two groups of reset mechanisms (4), characterized in that, The support mechanism (2), bending mechanism (3) and two groups of reset mechanisms (4) are all arranged on the top of the base (1). The bending mechanism (3) is arranged on the front side of the support mechanism (2), and the two groups of reset mechanisms (4) are arranged on the left and right sides of the support mechanism (2). The support mechanism (2) includes a support assembly, a pressure detection assembly and a vision detection assembly. The support assembly is arranged on the base (1), and the pressure detection assembly and the vision detection assembly are both arranged on the support assembly. The support assembly includes a first bracket (21), a first slider (24), a movable block (25) and a support plate (218). A first pressure sensor is arranged on the top of the support plate (218). The first pressure sensor is electrically connected to a pressure detection module. The pressure detection module is used to detect the pressure when bending the protection tube and make a judgment according to the obtained pressure data. The pressure detection assembly includes two groups of detection frames (28), a second pressure sensor (29) and a blocking block (212). The vision detection assembly includes a second bracket (220) and a camera (221). The camera (221) is electrically connected to a vision recognition module. The vision recognition module is used to obtain the picture taken by the camera (221) and identify the deformation condition of the protection tube. The bending mechanism (3) includes a support frame, a bending assembly and two groups of clamps (313). The support frame is arranged on the base (1), the bending assembly is arranged on the support assembly, and the two groups of clamps (313) are arranged on the support frame. The reset mechanism (4) includes a movable assembly and a restoration assembly. The movable assembly is arranged on the top of the base (1), and the restoration assembly is arranged on the movable assembly.

2. The performance detection device for cable protection pipes according to claim 1, characterized in that, The first bracket (21) is fixed on the top of the base (1). A first slide rail (22) is fixedly connected to the top of the first bracket (21). A first motor (23) is fixedly connected to one side of the first bracket (21) close to the bending mechanism (3). The first slider (24) and the movable block (25) are arranged inside the first slide rail (22). The first slider (24) is slidably connected to the first slide rail (22). The movable block (25) is arranged inside the first slide rail (22). The first slider (24) is connected to the output end of the first motor (23) by a screw drive. A number of first fasteners (27) are opened on the top of the first slide rail (22). Limiting holes are opened on both sides of the bottom of the movable block (25) perpendicular to the setting direction of the first slide rail (22), and the first fasteners (27) are arranged in the limiting holes.

3. The performance detection device for cable protection pipes according to claim 2, characterized in that, Sliding columns (214) are respectively slidably connected to the same height of the first slider (24) and the movable block (25). The closer ends of the two groups of sliding columns (214) are slidably connected to a connecting column (215). A spring (216) is sleeved on the sliding column (214). The two ends of the spring (216) are respectively fixedly connected to the connecting column (215) and the sliding column (214). A lifting frame (217) is sleeved on the connecting column (215). The support plate (218) is rotatably connected to the top of the lifting frame (217). On both sides of the lifting frame (217) perpendicular to the setting direction of the connecting column (215), there are first chutes. Fasteners two (219) are arranged in the first chutes.

4. The performance detection device for cable protection pipes according to claim 3, characterized in that, The two groups of detection frames (28) are respectively arranged on the tops of the first slider (24) and the movable block (25). A second pressure sensor (29) is fixed inside the detection frame (28). A rubber pad (210) is fixedly connected to the side of the second pressure sensor (29). The second pressure sensor (29) is electrically connected to the pressure detection module; Second chutes (213) are formed in the upper and lower sides inside the detection frame (28). An activity frame (211) is slidably connected inside the detection frame (28). A resisting block (212) is arranged inside the activity frame (211). The resisting block (212) is rotatably connected to the activity frame (211). The two ends of the resisting block (212) are arranged in the second chutes (213). The resisting block (212) is slidably connected to the detection frame (28).

5. The performance detection device for cable protection pipes according to claim 4, characterized in that, The second bracket (220) is fixed to one side of the first slider (24) close to the bending mechanism (3). The camera (221) is fixed to the bottom of the second bracket (220).

6. The performance detection device for cable protection pipes according to claim 5, characterized in that, The support frame includes a third bracket (31), a hydraulic cylinder (32) and four groups of limit columns (33). The hydraulic cylinder (32) and the limit columns (33) are fixed to the top of the base (1). The third bracket (31) is slidably connected to the limit columns (33). The output end of the hydraulic cylinder (32) is fixedly connected to the third bracket (31).

7. The performance detection device for cable protection pipes according to claim 6, characterized in that, The bending assembly includes a second motor (34), a first cylinder (37), two groups of first connecting rods (39) and two groups of second connecting rods (310). A second slide rail (35) is fixedly connected to the top of the third bracket (31). The second motor (34) is fixed to the side of the second slide rail (35) away from the first bracket (21). A second slider (36) is slidably connected to the top of the second slide rail (35). The output end of the second motor (34) is connected to the second slider (36) by a screw drive. The first cylinder (37) is fixed to the top of the second slider (36); The output end of the first cylinder (37) is fixedly connected to a connecting member (38). On both sides of the connecting member (38) perpendicular to the setting direction of the first cylinder (37), the two groups of first connecting rods (39) are respectively hinged. The side of the connecting member (38) away from the first cylinder (37) is hinged to the two groups of second connecting rods (310). The two groups of second connecting rods (310) are respectively arranged on the upper and lower sides of the connecting member (38). The two groups of second connecting rods (310) are respectively slidably connected to the first connecting rods (39); A through slot (312) is provided on the second connecting rod (310). A fastener (311) is arranged inside the through slot (312). An installation hole is provided on the first connecting rod (39). The end of the fastener (311) is arranged in the installation hole. The fastener (311) can be a bolt, or it can also be other fasteners that can play a fastening role; The clamp (313) is hinged to the end of the first connecting rod (39) away from the connecting member (38).

8. The performance detection device for cable protection pipes according to claim 7, characterized in that, The movable assembly includes a movable platform (41) and a third motor (42). The movable platform (41) is arranged on the top of the base (1). One end of the movable platform (41) close to the first bracket (21) is rotatably connected to the base (1) at the bottom. A plurality of universal wheels are arranged at the bottom of the other end of the movable platform (41) away from the first bracket (21). A movable seat (410) is arranged on the top of the movable platform (41). An arc-shaped rack (43) is fixedly connected to one side of the top of the base (1) away from the first bracket (21). The third motor (42) is fixed to the top of the other end of the movable platform (41) away from the first bracket (21). The output end of the third motor (42) is connected to the arc-shaped rack (43) by gear meshing.

9. The performance detection device for cable protection pipes according to claim 8, characterized in that, The restoration assembly includes a robot (44), a rotating shaft (45), a connecting shaft (46) and a plurality of fixing blocks (47). The robot (44) is fixed to the top of the movable seat (410). The end of the robot (44) is rotatably connected to the rotating shaft (45). The end of the rotating shaft (45) away from the robot (44) is rotatably connected to the connecting shaft (46). A plurality of the fixing blocks (47) are respectively fixed on the connecting shaft (46) and the rotating shaft (45). A plurality of second cylinders (48) are arranged in a circumferential manner in the radial direction of the connecting shaft (46). The second cylinders (48) are fixedly connected to the fixing blocks (47). The output end of the second cylinder (48) is fixedly connected to a clamping seat (49).

10. The performance detection device for cable protection pipes according to claim 9, characterized in that, The detection method of the performance detection equipment for the cable protection pipe: Step 1: The staff adjusts the heights of the lifting frame (217) and the second slide rail (35), and uses tools to place the protection pipe to be detected on the support plate (218). Both ends of the protection pipe are arranged inside the clamp (313); Step 2: According to the performance detection requirements of the protection pipe to be detected, the staff marks detection points and detection lines on the top of the protection pipe, and fixes the positions of the protection pipe, the second connecting rod (310) and the first connecting rod (39); Step 3: During the bending process, the visual recognition module and the pressure detection module acquire relevant data, and judge the performance detection result of the protection pipe according to the acquired data; Step 4: Control the reset mechanism (4) to restore the protection pipe after bending and detection, and perform visual detection again; Step 5: After the detection is completed, the staff uses tools to remove the protection pipe.

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