An automatic cable outer diameter detection mechanism

Abstract

This invention provides an automatic cable outer diameter detection mechanism, including a base, a frame, and a controller. A limiting mechanism is positioned opposite each other on the top of the frame. An adjusting mechanism is positioned on the top surface of the base. A movable plate is positioned opposite each other on the top of the adjusting mechanism. A limiting plate is positioned at the bottom of the movable plate. The two limiting plates are symmetrically V-shaped. A groove is provided on the top surface of the limiting plates facing the center line. Multiple rotating rollers are rotatably mounted within the groove, parallel to the limiting plates. An adjusting mechanism is mounted on a support plate. A first electric push rod is driven to the side of the adjusting mechanism, and its telescopic end is connected to the movable plate. A U-shaped frame is rotatably mounted on the side of the movable plate. A laser rangefinder is positioned on the top surface of the base, located between the two limiting plates. This invention requires only one laser rangefinder. By adjusting the distance and angle of the limiting plates, it can automatically detect the outer diameter of cables of different specifications, avoiding the increased cost caused by adding a sensor array.

Description

Technical Field

[0001] This utility model relates to the field of cable testing technology, and in particular to an automatic cable outer diameter testing mechanism. Background Technology

[0002] Cables, as an indispensable basic material in modern industry and civil applications, are wire bundles consisting of one or more insulated conductors twisted together with a metal or fiber core, typically encased in a high-strength sheath, and function to transmit electrical energy, signals, or convert electromagnetic energy. The cable manufacturing process mainly includes the following steps: First, copper / aluminum rods are drawn into conductor cores of a specified diameter; then, insulation material is extruded over the conductor to form an insulation layer; multiple insulated cores are twisted together to form a cable core, and a shielding layer is wrapped around the outer layer to suppress electromagnetic interference; finally, the sheath material is encased using an extruder to complete the finished cable manufacturing. Strict control of wire diameter tolerances, eccentricity, and surface quality is necessary during production to ensure the electrical performance and mechanical strength of the cable. Traditional inspection methods rely on manual micrometer sampling, which is inefficient and prone to missed inspections. Automatic cable outer diameter inspection mechanisms monitor the geometric dimensions of finished cables in real time. Modern automatic inspection mechanisms mostly employ non-contact measurement technology, using sensor arrays to perform high-speed scanning of the cable cross-section, combining algorithms to calculate the outer diameter and comparing it with standard values ​​to determine product qualification.

[0003] However, existing automatic cable outer diameter detection mechanisms still have the following problems: the measuring device uses laser rangefinders set at both ends for detection. As the cable diameter increases, the height of the sensor array needs to be increased accordingly, thereby increasing the detection cost. Utility Model Content

[0004] In view of this, the present invention proposes an automatic cable outer diameter detection mechanism to solve the problems mentioned above.

[0005] The technical solution of this utility model is implemented as follows:

[0006] The device includes a base, a frame, a cleaning mechanism, and a controller. The frame is located on the top surface of the base, with a limiting mechanism positioned opposite each other on its top. The top surface of the base has an adjustment mechanism, with a moving plate positioned opposite each other on its top. The bottom of the moving plate has a limiting plate, and the two limiting plates form a symmetrical V-shape. The top surface of the limiting plate facing the center line has a groove, within which multiple rotating rollers are rotatably mounted. The rotating rollers are parallel to the limiting plates. A laser rangefinder is located on the top surface of the base, between the two limiting plates. The cleaning mechanism is located on one side of the limiting plates. The controller is located on the top surface of the frame and is electrically connected to the limiting mechanism, the adjustment mechanism, the laser rangefinder, and the cleaning mechanism.

[0007] Preferably, the adjustment mechanism includes a U-shaped frame, a lead screw, a drive motor, a moving block, and a first electric push rod. The U-shaped frame is mounted on the top surface of the base. The lead screw is rotatably mounted on the U-shaped frame, with one end rotatably connected to the U-shaped frame and the other end passing through the U-shaped frame and connected to the drive motor. The drive motor is located on the side of the U-shaped frame. The moving block is mounted opposite to the lead screw, with the threads at both ends of the lead screw rotating in opposite directions. The moving plate is located on the top surface of the moving block, and the limiting plate is rotatably connected to the moving plate. The two ends of the first electric push rod are respectively hinged to the top surface of the U-shaped frame and the side of the limiting plate.

[0008] Preferably, the limiting mechanism includes a second electric push rod, a lifting upper plate, a lifting lower plate, a helical spring, a support plate, a rotating shaft, and a rotating cylinder. The second electric push rod is located at the top of the frame, and its telescopic end is connected to the top surface of the lifting upper plate. The lifting upper plate is connected to the lifting lower plate through a helical spring. The support plate is located opposite to the bottom surface of the lifting lower plate. The rotating shaft is rotatably located between the two support plates, and the rotating cylinder is rotatably located on the rotating shaft.

[0009] Preferably, the rotating drum is made of flexible rubber.

[0010] Preferably, a cleaning mechanism is also included, which includes a support base, a ring, air nozzles, an air pipe, and an air pump. The air pump and the support base are located on the top surface of the base. The ring is located on the top of the support base and has a cavity inside. The air pump is connected to the cavity through an air pipe. Multiple air nozzles are evenly distributed around the axis inside the ring. The air nozzles are connected to the cavity, and the cable passes through the inner ring.

[0011] Preferably, a limit switch is also included, which is located on the side of the movable plate and its trigger part faces the other side of the movable plate.

[0012] Preferably, the base also includes a support leg, which is disposed on the bottom surface of the base.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Only one laser rangefinder needs to be set up. By adjusting the distance and angle of the limit plate, the outer diameter of cables of different specifications can be automatically detected, avoiding the increase in cost caused by adding a sensor array;

[0015] 2. A cleaning mechanism is set up. When the cable passes through the inner ring, the air pump is started. The air pump generates a high-pressure airflow. The high-pressure airflow enters the cavity through the air pipe and is sprayed out from each air nozzle to form a ring-shaped air curtain. The airflow can blow off the dust and water droplets on the outer surface of the cable, realizing dynamic cleaning. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of an automatic cable outer diameter detection mechanism according to the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of an automatic cable outer diameter detection mechanism according to the present invention.

[0019] Figure 3 for Figure 2 Cross-sectional view at point AA;

[0020] Reference numerals: 1. Base; 2. Frame; 3. Cable; 4. U-shaped frame; 5. Lead screw; 6. Moving block; 7. Moving plate; 8. Support leg; 9. Support seat; 10. Ring; 11. Cavity; 12. Air nozzle; 13. Air pipe; 14. Air pump; 15. Drive motor; 16. Limit plate; 17. Groove; 18. Rotating roller; 19. First electric push rod; 20. Controller; 21. Second electric push rod; 22. Lifting upper plate; 23. Lifting lower plate; 24. Helical spring; 25. Rotating drum; 26. Support plate; 27. Rotating shaft; 28. Laser rangefinder; 29. ​​Limit switch. Detailed Implementation

[0021] To better understand the technical content of this utility model, a specific embodiment is provided below, and the utility model will be further described in conjunction with the accompanying drawings.

[0022] See Figures 1 to 3 This utility model provides an automatic cable outer diameter detection mechanism, including a base 1, a frame 2, a cleaning mechanism, and a controller 20. The frame 2 is located on the top surface of the base 1, and a limiting mechanism is provided on its top. An adjustment mechanism is provided on the top surface of the base 1. A moving plate 7 is provided on the top of the adjustment mechanism, and a limiting plate 16 is provided at the bottom of the moving plate 7. The two limiting plates 16 are symmetrically V-shaped. A groove 17 is provided on the top surface of the limiting plate 16 facing the center line. Multiple rotating rollers 18 are rotatably arranged in the groove 17. The rotating rollers 18 are parallel to the limiting plates 16. A laser rangefinder 28 is provided on the top surface of the base 1, which is located between the two limiting plates 16. The cleaning mechanism is located on one side of the limiting plate 16. The controller 20 is located on the top surface of the frame 2 and is electrically connected to the limiting mechanism, the adjustment mechanism, the laser rangefinder 28, and the cleaning mechanism.

[0023] When the testing mechanism is working, cable 3 is first passed through the cleaning mechanism, then cable 3 is placed on the top surface of the two limiting plates 16. The limiting mechanism is then activated, with its bottom abutting against the top of cable 3, restricting the vertical direction of cable 3. The limiting plates 16 are symmetrically V-shaped. Under the combined action of gravity and the limiting mechanism, the bottom of cable 3 remains abutted against the two limiting plates 16 as it moves. The adjusting mechanism is then activated, causing the two moving plates 7 to move towards each other, while simultaneously maintaining the plane of the two limiting plates 16 facing the side of cable 3. The height of the intersection coincides with the height of the laser rangefinder 28, and the included angle between the bottom of the two limit plates 16V is 60°. Then, the laser rangefinder 28 can be activated to detect the distance between the intersection of the planes and the lowest point of the cable 3. By calculating the sine of the triangle, the detection value of the laser rangefinder 28 can be obtained, which is the radius of the cable 3. In actual production, the laser rangefinder 28 transmits the detection value to the controller 20 for storage. It can automatically detect the outer diameter of cables 3 of different specifications without increasing the height of the sensor array accordingly, thereby reducing the detection cost.

[0024] Preferably, the adjustment mechanism includes a U-shaped frame 4, a lead screw 5, a drive motor 15, a moving block 6, and a first electric push rod 19. The U-shaped frame 4 is disposed on the top surface of the base 1. The lead screw 5 is rotatably disposed on the U-shaped frame 4, with one end rotatably connected to the U-shaped frame 4 and the other end passing through the U-shaped frame 4 and driven by the drive motor 15. The drive motor 15 is disposed on the side of the U-shaped frame 4. The moving block 6 is disposed opposite to the lead screw 5, with the two ends of the lead screw 5 having opposite rotation directions. The moving plate 7 is disposed on the top surface of the moving block 6. The limiting plate 16 is rotatably connected to the moving plate 7. The two ends of the first electric push rod 19 are respectively hinged to the top surface of the U-shaped frame 4 and the side surface of the limiting plate 16.

[0025] When the radius of cable 3 is large, cable 3 is located near the top of the two limiting plates 16, posing a risk of detaching from the V-shaped structure. The adjustment mechanism is activated to adjust the position and angle of the limiting plates 16 accordingly. First, the drive motor 15 is activated, rotating the lead screw 5. The rotation of the lead screw 5 causes the two moving blocks 6 to move away from each other. The movement of the moving blocks 6 moves the moving plate 7. Simultaneously, the first electric push rod 19 is activated, its extension end shortening, causing the limiting plate 16 to rotate around the hinge axis of the moving plate 7, so that the bottom angle of the V-shape formed by the two limiting plates 16 is 90°. At the same time, the height of the intersection of the planes of the two limiting plates 16 facing the cable 3 side coincides with the height of the laser rangefinder 28. At this point, based on the detection value d of the laser rangefinder 28 and calculated using a triangle sine, the radius R of cable 3 is:

[0026]

[0027] This design ensures that the contact point between the cable 3 and the limiting plate 16 is located in the middle of the limiting plate 16, preventing the cable 3 from being positioned too high on the two limiting plates 16, reducing the risk of the cable 3 shifting and coming off during movement, and improving the accuracy of automatic detection of the cable 3's outer diameter. The contact point between the cable 3 and the side of the limiting plate 16 is located in the middle, which is beneficial to the stability of the cable 3 and increases the range of automatically detectable cable 3's outer diameter.

[0028] Preferably, the limiting mechanism includes a second electric push rod 21, a lifting upper plate 22, a lifting lower plate 23, a helical spring 24, a support plate 26, a rotating shaft 27, and a rotating cylinder 25. The second electric push rod 21 is located at the top of the frame 2, and its telescopic end is connected to the top surface of the lifting upper plate 22. The lifting upper plate 22 is connected to the lifting lower plate 23 through the helical spring 24. The support plate 26 is located opposite to the bottom surface of the lifting lower plate 23. The rotating shaft 27 is rotatably located between the two support plates 26, and the rotating cylinder 25 is rotatably located on the rotating shaft 27.

[0029] The limiting mechanism restricts the vertical direction of the cable 3. The second electric push rod 21 is activated, and its telescopic end extends to drive the upper lifting plate 22 to descend. When the lower lifting plate drives the rotating drum 25 to the top of the cable 3, it provides pre-tension force to the cable 3. When the cable 3 moves, it will vibrate. The helical spring 24 will absorb the vibration excitation, so that the cable 3 is always above the cable 3, which plays a buffering role.

[0030] Preferably, the rotating drum 25 is made of flexible rubber.

[0031] The flexible rubber material has good elasticity. When the rotating drum 25 encounters impact or vibration during operation, it can absorb and disperse energy through its own elastic deformation, thereby effectively reducing the impact on the rotating drum 25 itself and other connected components, reducing the risk of equipment damage, and extending the service life of the equipment.

[0032] Preferably, a cleaning mechanism is also included, which includes a support base 9, a ring 10, a nozzle 12, an air pipe 13, and an air pump 14. The air pump 14 and the support base 9 are located on the top surface of the base 1. The ring 10 is located on the top of the support base 9. A cavity 11 is provided inside the ring 10. The air pump 14 is connected to the cavity 11 through the air pipe 13. A plurality of nozzles 12 are evenly distributed around the axis inside the ring 10. The nozzles 12 are connected to the cavity 11. The cable 3 passes through the inner ring 10.

[0033] When cable 3 passes through the inner ring of the ring 10, the air pump 14 is activated. The air pump 14 generates a high-pressure airflow, which is injected into the cavity 11 through the air pipe 13 and ejected from each air nozzle 12 to form an annular air curtain. This airflow cleans the surface of cable 3 in 360° without dead angles, and can blow off dust and water droplets from the outer surface of cable 3, thus achieving dynamic cleaning.

[0034] Preferably, a limit switch 29 is also included, which is located on the side of the movable plate 7 and its trigger part faces the other side of the movable plate 7.

[0035] When the adjustment mechanism is activated, it moves the two movable plates 7 closer to each other. When the two sides of the two movable plates 7 come into contact with each other, the limit switch 29 is triggered and transmits a signal to the controller 20. The controller 20 stops the adjustment mechanism. The contact of the movable plates 7 forms a physical hard limit, and the signal from the limit switch 29 acts as a soft limit, providing double protection to avoid overload damage.

[0036] Preferably, the base also includes a support leg 8, which is disposed on the bottom surface of the base 1.

[0037] The support leg 8 is used to support the weight of the entire device and can adapt to ground with different flatness. The support leg 8 has a certain height to ensure that the cable 3 is in a horizontal state, thereby improving the accuracy of detection.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic cable outer diameter detection mechanism, characterized in that, The device includes a base, a frame, a cleaning mechanism, and a controller. The frame is located on the top surface of the base, with a limiting mechanism positioned opposite each other on its top. The top surface of the base has an adjustment mechanism, with a moving plate positioned opposite each other on its top. The bottom of the moving plate has a limiting plate, and the two limiting plates form a symmetrical V-shape. The top surface of the limiting plate facing the center line has a groove, within which multiple rotating rollers are rotatably mounted. The rotating rollers are parallel to the limiting plates. A laser rangefinder is located on the top surface of the base, between the two limiting plates. The cleaning mechanism is located on one side of the limiting plates. The controller is located on the top surface of the frame and is electrically connected to the limiting mechanism, the adjustment mechanism, the laser rangefinder, and the cleaning mechanism.

2. The automatic cable outer diameter detection mechanism according to claim 1, characterized in that, The adjustment mechanism includes a U-shaped frame, a lead screw, a drive motor, a moving block, and a first electric push rod. The U-shaped frame is mounted on the top surface of the base. The lead screw is rotatably mounted on the U-shaped frame, with one end rotatably connected to the U-shaped frame and the other end passing through the U-shaped frame and driven by the drive motor. The drive motor is located on the side of the U-shaped frame. The moving block is mounted opposite to the lead screw, with the threads at both ends of the lead screw rotating in opposite directions. The moving plate is located on the top surface of the moving block, and the limiting plate is rotatably connected to the moving plate. The two ends of the first electric push rod are respectively hinged to the top surface of the U-shaped frame and the side of the limiting plate.

3. The automatic cable outer diameter detection mechanism according to claim 1, characterized in that, The limiting mechanism includes a second electric push rod, a lifting upper plate, a lifting lower plate, a helical spring, a support plate, a rotating shaft, and a rotating cylinder. The second electric push rod is located at the top of the frame, and its telescopic end is connected to the top surface of the lifting upper plate. The lifting upper plate is connected to the lifting lower plate through a helical spring. The support plate is located opposite to the bottom surface of the lifting lower plate. The rotating shaft is rotatably located between the two support plates, and the rotating cylinder is rotatably located on the rotating shaft.

4. The automatic cable outer diameter detection mechanism according to claim 3, characterized in that, The rotating drum is made of flexible rubber.

5. The automatic cable outer diameter detection mechanism according to claim 1, characterized in that, The cleaning mechanism includes a support base, a ring, air nozzles, an air pipe, and an air pump. The air pump and the support base are located on the top surface of the base. The ring is located on the top of the support base and has a cavity inside. The air pump is connected to the cavity through an air pipe. Multiple air nozzles are evenly distributed around the axis inside the ring. The air nozzles are connected to the cavity. The cable passes through the inner ring.

6. The automatic cable outer diameter detection mechanism according to claim 1, characterized in that, It also includes a limit switch, which is located on the side of the movable plate and its trigger part faces the other side of the movable plate.

7. The automatic cable outer diameter detection mechanism according to claim 1, characterized in that, It also includes support legs, which are located on the bottom surface of the base.

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