CN110631478A

CN110631478A - Cable sheath structure size measuring device

Info

Publication number: CN110631478A
Application number: CN201910853800.0A
Authority: CN
Inventors: 李世昌; 帅成忠; 赵辰; 胡士海; 赵军宝
Original assignee: Hangzhou Magic Cube Intelligent Technology Co Ltd
Current assignee: Hangzhou Magic Cube Intelligent Technology Co Ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2019-12-31
Anticipated expiration: 2039-09-10
Also published as: CN110631478B

Abstract

The invention discloses a cable sheath structure size measuring device which comprises a base, wherein a control device, a clamping device for clamping a cable and an industrial camera for shooting the end face of the cable are arranged on the base, and the industrial camera is electrically connected with the control device; the clamping device comprises a guide rail, a first clamping block and a second clamping block are connected to the guide rail in a sliding mode, a screw rod parallel to the guide rail is further connected to the base in a rotating mode, the screw rod is in transmission connection with the first clamping block and the second clamping block at the same time, and the first clamping block and the second clamping block are close to or far away from each other at the same time when the screw rod rotates; and a hand wheel is arranged at one end of the screw rod, and a torque limiter is arranged between the hand wheel and the screw rod. When the structural size of the cable sheath is measured, the metal layer does not need to be peeled off from the sheath, so that the sheath is prevented from being damaged or deformed, and the measurement accuracy is improved.

Description

Cable sheath structure size measuring device

Technical Field

The invention relates to a measuring device, in particular to a cable sheath structure size measuring device.

Background

The cable generally comprises a sheath, a metal layer and a conducting wire, wherein the sheath is wrapped outside the conducting wire, and the metal layer is attached to the inner side of the sheath, so that the strength of the sheath can be enhanced. The sheath is typically made of an insulating rubber material. The sheath plays the guard action to inside wire on the one hand, and on the other hand plays insulating isolation. During the production process of the cable, the cross-sectional dimensions of the sheath (outer diameter of the sheath, inner diameter of the sheath, thickness of the sheath) need to be measured. The traditional measurement method needs to take a section of sheath, peel off the metal layer on the inner side of the sheath, cut the sheath into thin sheets, and put the sheets into special equipment for measurement. Because the metal layer is closely connected with the sheath, when the metal layer is stripped, the sheath is easy to deform and damage, and the measuring structure is inaccurate.

Such as: the invention discloses a Chinese patent publication No. CN206321206U, and discloses an intelligent measuring device for the size of a cable insulation structure, which comprises an industrial cabinet, an industrial rack, a camera rack, an industrial camera, a carrying platform and an industrial control host, wherein the industrial cabinet adopts a totally enclosed structure, the industrial rack is arranged in the industrial cabinet, the camera rack and the industrial control host are both arranged on the industrial rack, the industrial camera is arranged on the camera rack and is arranged right above the carrying platform, an opening is arranged in the middle of the industrial cabinet, the carrying platform is arranged on the industrial rack through the opening, and the industrial control host is arranged below the carrying platform and is connected with the industrial camera. Before measuring the cable insulation structure (sheath), the metal layer on the inner side of the sheath needs to be stripped, and then the metal layer is cut and placed on the carrying platform for measurement.

Disclosure of Invention

The invention aims to solve the problems that the metal layer on the inner side of a sheath needs to be stripped before the structural dimension of the cable sheath is measured, the sheath is easy to deform when the metal layer is stripped, and the sheath is easy to damage, so that the measurement structure is inaccurate, and provides a device for measuring the structural dimension of the cable sheath.

The purpose of the invention is realized by the following technical scheme: a cable sheath structure size measuring device comprises a base, wherein a control device, a clamping device for clamping a cable and an industrial camera for shooting the end face of the cable are arranged on the base, and the industrial camera is electrically connected with the control device; the clamping device comprises a guide rail, a first clamping block and a second clamping block are connected to the guide rail in a sliding mode, a screw rod parallel to the guide rail is further connected to the base in a rotating mode, the screw rod is in transmission connection with the first clamping block and the second clamping block at the same time, and the first clamping block and the second clamping block are close to or far away from each other at the same time when the screw rod rotates; and a hand wheel is arranged at one end of the screw rod, and a torque limiter is arranged between the hand wheel and the screw rod.

In the invention, the control device is connected with the computer. And corresponding software is installed on the computer and can display the measured data. The industrial camera is directed at the end face of the cable. The control device controls the operation of the industrial camera, and the control device is provided with an image processing module which can analyze and process images shot by the industrial camera. During the use, cut an terminal surface with the sheath that awaits measuring earlier, then fix the sheath on the base through clamping device, the industrial camera is aimed at to the sheath terminal surface, and the industrial camera shoots the terminal surface of sheath. The image transmission that the industry camera was shot to image processing module, and image processing module can carry out analysis processes to the image, analyzes out the profile of sheath cross-section, through inside operation alright reachs the size of sheath cross-section to show through the technique machine. According to the invention, the metal layer is not required to be stripped from the sheath, so that the sheath is prevented from being damaged or deformed, and the measurement accuracy is improved. The torque limiter can limit the torque of the hand wheel, and avoids damage to the cable caused by overlarge clamping force between the two clamping blocks.

Preferably, the two sides of the screw rod are respectively provided with transmission threads, the rotating directions of the two transmission threads are opposite, the first clamping block is provided with a first threaded hole matched with one of the transmission threads, and the second clamping block is provided with a second threaded hole matched with the other transmission thread. Two press from both sides tight piece difference threaded connection on the lead screw, because two transmission screw threads revolve to opposite, when the lead screw rotated, first clamp tight piece and second pressed from both sides tight piece and move along opposite direction, and first clamp tight piece and second press from both sides and press from both sides between the piece and be close to each other or keep away from to the realization is to the clamp of cable or is unclamped.

Preferably, the first clamping block is provided with a first clamping groove, the second clamping block is provided with a second clamping groove corresponding to the first clamping groove, and the first clamping groove and the second clamping groove are both V-shaped grooves. When the cable is clamped, the cable is placed between the two clamping grooves, and the cable is clamped through the movement of the clamping blocks. The clamping groove is a V-shaped groove, and has an automatic centering function, so that the cable can be automatically aligned to the industrial camera.

Preferably, the base is provided with a sliding rail, the sliding rail is provided with a first sliding block, the first sliding block is provided with a camera support for fixing an industrial camera, and the industrial camera is arranged on the camera support. The industrial camera can be adjusted in a moving mode along the sliding rail, and therefore the industrial camera can be guaranteed to be in the best focusing position.

Preferably, a second sliding block is arranged on the sliding rail, an annular light source lamp for illuminating the end of the cable is arranged on the second sliding block, and the annular light source lamp is arranged between the industrial camera and the clamping device. The ring-shaped light source lamp can illuminate the end of the cable, so that the industrial camera can take a clear image. The annular light source lamp is arranged on the sliding rail and can move and be adjusted along the sliding rail, and the best lighting effect can be achieved.

Preferably, the annular light source lamp comprises a light source lamp body, through holes corresponding to the industrial camera are formed in the light source lamp body, and lamp beads are arranged around the through holes in a surrounding mode. The through holes in the annular light source lamp avoid the annular light source lamp from shielding the industrial camera, so that the industrial camera can normally shoot.

Preferably, the base is provided with a case, the case is covered outside the control device, the industrial camera and the annular light source lamp, and the case is provided with a glass sheet which is positioned between the clamping device and the annular light source lamp. The case cover is arranged outside the control device, the industrial camera and the annular light source lamp, and can play a good role in protecting the control device, the industrial camera and the annular light source lamp. The glass piece is in the focus position of industrial camera, and the cable is when pressing from both sides tightly, and the terminal surface and the glass piece butt of cable, the terminal surface of cable just is in the focus position of industrial camera like this, and clear cable terminal surface picture can be shot to industrial camera.

Preferably, a backlight is provided on one side of the clamping device, and the backlight is provided on a side away from the industrial camera. The backlight lamps illuminate from the back side of the cable, so that the shadow around the cable can be eliminated, lines at the edge of the sheath are clear, and the measurement accuracy is improved.

Preferably, the torque limiter comprises an outer cylinder, the outer cylinder is cylindrical, a plurality of arc-shaped grooves are formed in the inner wall of the outer cylinder, the arc-shaped grooves are distributed on the inner wall of the outer cylinder in a circular array, annular grooves are further formed in the inner wall of the outer cylinder, the annular grooves are formed along the circumferential direction of the outer cylinder, and one ends of the arc-shaped grooves are communicated with the annular grooves; the outer cylinder is internally provided with a rotating block which is a cylinder, the circumferential direction of the rotating block is provided with protruding shafts with the same number as the arc-shaped grooves, and the protruding shafts are connected in the arc-shaped grooves in a sliding manner; and a tension spring is arranged between one end of the rotating block and one end of the outer barrel, one end of the tension spring is fixed on the rotating block, and the other end of the tension spring is connected to the outer barrel through a rotating connector in a rotating mode. The outer cylinder is fixedly connected with the end part of the screw rod, and the rotating block is fixedly connected with the hand wheel. When the hand wheel is rotated, the outer cylinder of the rotating block can rotate relatively. When the rotating block rotates, the convex shaft moves along the length direction of the arc-shaped groove. The tension spring generates tension to the rotating block. When the torque of the hand wheel exceeds the limited torque, the convex shaft can slide out of the arc-shaped groove to enter the annular groove, so that the outer cylinder and the rotating block slip, the hand wheel idles, the phenomenon that the clamping force between the two clamping blocks is too large is avoided, and the cable is prevented from being damaged by clamping or deforming.

The crop is preferred, the protruding axle includes the center pin with rotatory piece integrated into one piece, the cover is equipped with the outer loop on the center pin, be provided with a plurality of ball between outer loop and the center pin. The outer ring is contacted with the wall surface of the arc groove. When the protruding shaft slides along the arc-shaped groove, the outer ring rotates relative to the central shaft, and the balls are arranged between the outer ring and the central shaft, so that the friction force between the outer ring and the central shaft can be reduced.

The invention has the beneficial effects that: when the structural size of the cable sheath is measured, the metal layer does not need to be peeled off from the sheath, so that the sheath is prevented from being damaged or deformed, and the measurement accuracy is improved. The torque limiter can limit the torque of the hand wheel, and avoids deformation or damage to the cable caused by overlarge clamping force between the two clamping blocks.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 1.

Fig. 4 is a schematic structural diagram of the present invention with the chassis removed.

Fig. 5 is a schematic structural view of a ring light source lamp.

FIG. 6 is a cross-sectional view of a torque limiter.

Fig. 7 is a schematic structural view of the outer tub.

Fig. 8 is a schematic view of the structure of the rotating body.

Fig. 9 is an enlarged view of a portion B in fig. 6.

In the figure: 1. the device comprises a base, 2, a case, 3, a guide rail, 4, a screw rod support, 5, a first clamping block, 6, a second clamping block, 7, a screw rod, 8, a hand wheel, 9, a backlight lamp, 10, a torque limiter, 11, a glass plate, 12, a control device, 13, a slide rail, 14, a first slide block, 15, a second slide block, 16, an annular light source lamp, 17, a camera support, 18, an industrial camera, 19, a light source lamp body, 20, a through hole, 21, a lamp bead, 22, an outer cylinder, 23, a rotating block, 24, a rotating connector, 25, a tension spring, 26, an arc-shaped groove, 27, an annular groove, 28, a convex shaft, 29, a central shaft, 30, an outer ring, 31 and a ball.

Detailed Description

The invention is further described by the following detailed description in conjunction with the accompanying drawings.

Example (b):

as shown in fig. 1 to 9, a cable sheath structure dimension measuring device includes a base 1. The base 1 is provided with a control device 12 and a clamping device. The clamping device is used for clamping the cable. The clamping device comprises a guide rail 3. A first clamping block 5 and a second clamping block 6 are slidably connected to the guide rail 3. The first clamping block 5 is provided with a first clamping groove, and the second clamping block 6 is provided with a second clamping groove corresponding to the first clamping groove. The first clamping groove and the second clamping groove are both V-shaped grooves. And the two ends of the guide rail are provided with screw rod supports 4. The screw rod support 4 is rotatably connected with a screw rod 7. The screw rod 7 is parallel to the guide rail 3. And transmission threads are respectively arranged on two sides of the screw rod 7. The rotation directions of the two transmission threads are opposite. The first clamping block 5 is provided with a first threaded hole matched with one of the transmission threads, and the second clamping block 6 is provided with a second threaded hole matched with the other transmission thread. When the screw rod 7 rotates, the first clamping block 5 and the second clamping block 6 simultaneously approach or separate from each other. One end of the screw rod 7 is provided with a hand wheel 8. A torque limiter 10 is arranged between the hand wheel 8 and the screw rod 7.

The torque limiter 10 includes an outer barrel 22. The outer cylinder 22 is cylindrical. The outer cylinder 22 is sealed at one end and open at the other end. The inner wall of the outer cylinder 22 is provided with a plurality of arc-shaped slots 26. The arcuate slots 26 are distributed in a circular array on the inner wall of the outer barrel 22. An annular groove 27 is also provided on the inner wall of the outer cylinder 22. An annular groove 27 is provided near the open end of the outer barrel 22. The annular groove 27 is provided along the circumferential direction of the outer cylinder 22. One end of the arc-shaped groove 26 communicates with the annular groove 27. A rotating block 23 is provided in the outer cylinder 22. The rotating block 23 is a cylinder. The rotating block 23 is provided with the same number of protruding shafts 28 as the arc-shaped grooves 26 in the circumferential direction. The protruding shaft 28 is slidably connected in the arc-shaped slot 26. The protruding shaft 28 includes a central shaft 29 integrally formed with the rotating block 23. An outer ring 30 is sleeved on the central shaft 29. A number of balls 31 are arranged between the outer ring 30 and the central shaft 29. A tension spring 25 is provided between one end of the rotation block 23 and one end of the outer cylinder 22. One end of the tension spring 25 is fixed on the rotary block 23, and the other end is rotatably connected to the outer cylinder 22 through the rotary connector 24. The outer cylinder is fixedly connected with the end part of the screw rod, and the rotating block is fixedly connected with the hand wheel. When the hand wheel is rotated, the outer cylinder of the rotating block can rotate relatively. When the rotating block rotates, the convex shaft moves along the length direction of the arc-shaped groove. The tension spring generates tension to the rotating block. When the torque of the hand wheel exceeds the limited torque, the convex shaft can slide out of the arc-shaped groove to enter the annular groove, so that the outer cylinder and the rotating block slip, the hand wheel idles, the phenomenon that the clamping force between the two clamping blocks is too large is avoided, and the cable is prevented from being damaged by clamping or deforming.

One side of the clamping device is provided with a slide rail 13. The slide rail 13 is perpendicular to the guide rail 3. A first slide block 14 and a second slide block 15 are slidably connected to the slide rail 13. A camera bracket 17 is fixedly arranged on the first slide block 14. An industrial camera 18 is provided on the camera support 17. The industrial camera 18 is used to photograph the cable end. The industrial camera 18 is electrically connected to the control device 12. The second slider 15 is provided with an annular light source lamp 16. The ring light source lamp 16 is located between the industrial camera 18 and the fixture. The annular light source lamp 16 includes a light source lamp body 19. The light source lamp body 19 is provided with a through hole 20 corresponding to the industrial camera 18. The through-hole 20 is circular. The through hole 20 is surrounded by lamp beads 21. The lamp beads 21 are LED lamp beads. The other side of the clamping device is provided with a backlight 9. The backlight 9 illuminates from the back side of the cable, so that the shadow around the cable can be eliminated, the lines at the edge of the sheath are clear, and the measurement accuracy is improved. The base 1 is provided with a case 2. The cabinet housing is mounted outside the control device 12, the industrial camera 18 and the ring light source lamp 16. The cabinet 2 is provided with a glass plate 11. The glass sheet 11 is positioned between the clamping device and the annular light source lamp 16.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a cable sheath structure size measuring device, includes base (1), its characterized in that: the base (1) is provided with a control device (12), a clamping device for clamping a cable and an industrial camera (18) for shooting the end face of the cable, and the industrial camera (18) is electrically connected with the control device (12); the clamping device comprises a guide rail (3), a first clamping block (5) and a second clamping block (6) are connected to the guide rail (3) in a sliding mode, a lead screw (7) parallel to the guide rail (3) is further connected to the base (1) in a rotating mode, the lead screw (7) is in transmission connection with the first clamping block (5) and the second clamping block (6) at the same time, and the first clamping block (5) and the second clamping block (6) are close to or far away from each other at the same time when the lead screw (7) rotates; a hand wheel (8) is arranged at one end of the screw rod (7), and a torque limiter (10) is arranged between the hand wheel (8) and the screw rod (7).

2. A cable sheath structure dimension measuring device according to claim 1, characterized in that the two sides of the screw rod (7) are respectively provided with a transmission thread, the rotation directions of the two transmission threads are opposite, the first clamping block (5) is provided with a first threaded hole matched with one of the transmission threads, and the second clamping block (6) is provided with a second threaded hole matched with the other transmission thread.

3. A cable sheath construction dimension measuring device according to claim 1, wherein the first clamping block (5) is provided with a first clamping groove, the second clamping block (6) is provided with a second clamping groove corresponding to the first clamping groove, and the first clamping groove and the second clamping groove are both "V" shaped grooves.

4. A cable sheath structure dimension measuring device according to claim 1, characterized in that a slide rail (13) is provided on the base (1), a first slide block (14) is provided on the slide rail (3), a camera bracket (17) for fixing an industrial camera (18) is provided on the first slide block (14), and the industrial camera (18) is provided on the camera bracket (17).

5. A cable sheathing structure dimension measuring device according to claim 4, characterized in that a second slider (15) is arranged on the sliding rail (13), a ring light source lamp (16) for illuminating the cable end is arranged on the second slider (15), the ring light source lamp (16) is arranged between the industrial camera (18) and the clamping device.

6. A cable sheath structure dimension measuring device according to claim 5, wherein the annular light source lamp (16) comprises a light source lamp body (19), a through hole (20) corresponding to the industrial camera (18) is arranged on the light source lamp body (19), and lamp beads (21) are arranged around the through hole (20).

7. A cable sheathing structure dimension measuring device according to claim 5, wherein a cabinet (2) is provided on the base, the cabinet (2) is housed outside the control device (12), the industrial camera (18) and the ring light source lamp (16), a glass sheet (11) is provided on the cabinet (2), and the glass sheet (11) is located between the clamping device and the ring light source lamp (16).

8. A cable sheathing structure sizing device according to claim 1, characterised in that a backlight (9) is arranged on one side of the clamping device, said backlight (9) being arranged on the side remote from the industrial camera (18).

9. The cable sheath structure size measuring device as claimed in claim 1, wherein the torque limiter (10) comprises an outer cylinder (22), the outer cylinder (22) is cylindrical, a plurality of arc-shaped grooves (26) are formed in the inner wall of the outer cylinder (22), the arc-shaped grooves (26) are distributed on the inner wall of the outer cylinder (22) in a circular array, an annular groove (27) is further formed in the inner wall of the outer cylinder (22), the annular groove (27) is formed along the circumferential direction of the outer cylinder (22), and one end of each arc-shaped groove (26) is communicated with the annular groove (27); a rotating block (23) is arranged in the outer cylinder (22), the rotating block (23) is a cylinder, protruding shafts (28) with the same number as the arc-shaped grooves (26) are arranged in the circumferential direction of the rotating block (23), and the protruding shafts (28) are connected in the arc-shaped grooves (26) in a sliding mode; be provided with extension spring (25) between the one end of rotatory piece (23) and the one end of urceolus (22), extension spring (25) wherein one end is fixed on rotatory piece (23), and the other end rotates to be connected on urceolus (22) through swivelling joint ware (24).

10. A cable sheath construction dimension measuring device according to claim 9, characterized in that the protruding shaft (28) comprises a central shaft (29) which is formed integrally with the rotating block (23), an outer ring (30) is sleeved on the central shaft (29), and a plurality of balls (31) are arranged between the outer ring (30) and the central shaft (29).