Cable crack detection device based on machine vision

Abstract

The utility model discloses a cable crack detection device based on machine vision, which comprises a base, the top of the base is fixedly connected with two groups of brackets, the brackets are provided with winding mechanisms, the base is fixedly connected with a large-caliber through pipe, the inner part of the large-caliber through pipe is movably provided with annularly distributed shooting mechanisms, and the shooting mechanisms are arranged on the brackets. The outer side of the large-diameter through pipe is rotationally connected with an adjusting ring. According to the utility model, the driving part is started to drive the adjusting ring to rotate so as to drive the wedge-shaped block to move and extrude the shooting mechanism to centrifugally move towards the outer seat, so that the diameter of a shooting area is increased, cables with larger diameters can conveniently pass through, and full-coverage shooting is realized, otherwise, the driving part is started to drive the adjusting ring to reversely rotate so as to reduce the shooting area; therefore, the device has the advantages that the shooting diameter is adjustable, operation is simple and efficient, the detection efficiency is improved, and the device is more flexible.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable detection technical field more specifically, relate to the cable crack detection device based on machine vision. BACKGROUND

[0002] In the production and processing of cable, cable surface detection is a more important step, if the cable surface defect cannot be detected and excluded directly in production, it will directly affect the product quality of cable, and with the popularization of automation industry, cable detection also uses machine vision detection.

[0003] Because the cross section of cable is circular, the camera needs to be distributed in the outer side of cable in a ring shape to realize comprehensive detection, but because the outer diameter of shooting is fixed, the diameter of detected cable is single, different diameter cables need to replace detection equipment, the flexibility is poor, and the use is not convenient enough. UTILITY MODEL CONTENT

[0004] In view of the problems in the prior art, the utility model aims at providing a cable crack detection device based on machine vision to solve the problems of single cable diameter and poor flexibility caused by the fixed outer diameter of shooting due to the circular cross section of cable.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The cable crack detection device based on machine vision, including base, the top of base is fixedly connected with two groups of supports, the support is installed with winding mechanism, the base is fixedly connected with large diameter pipe, the inside of large diameter pipe is movably installed with ring distribution shooting mechanism, the outside of large diameter pipe is rotatably connected with adjusting ring, the outside of adjusting ring is fixedly connected with equidistance arranged wedge block, the wedge block is correspondingly matched with shooting mechanism, the base and right side wedge block are installed with driving piece.

[0007] As a further description of the above technical scheme: the shooting mechanism includes cross bar, straight line arranged guide rod, camera and spring, the cross bar is arranged in parallel on the outside of large diameter pipe, one end of guide rod is fixedly connected with cross bar, the other end of guide rod penetrates to the inside of large diameter pipe, the camera is fixedly installed to one end of guide rod in the inside of large diameter pipe, the spring is sleeved on the outside of guide rod, one end of spring is fixedly connected with the inner wall of large diameter pipe, the other end of spring is fixedly connected with the outside of guide rod.

[0008] As a further description of the above technical scheme: the inner wall of large diameter pipe is fixedly connected with equidistance arranged lamp tube, the lamp tube is arranged and distributed with interval between camera.

[0009] As a further description of the above technical solution: the outer side of the cross rod is rotationally connected with a sleeve, and the outer side of the sleeve is in sliding contact with the outer side of the wedge block.

[0010] As a further description of the above technical solution: the winding mechanism comprises two second hydraulic cylinders, two side plates, a winding roller and a servo motor, the bottom end of the second hydraulic cylinder is fixedly connected with the base, the top end of the second hydraulic cylinder is fixedly connected with the bottom of the side plate, the two ends of the winding roller are rotationally connected between the two side plates, the servo motor is fixedly installed on one side plate, the output end of the servo motor is fixedly connected with the winding roller through a shaft coupling, and the outer side of the side plate is slidingly connected to the outer side of the support.

[0011] As a further description of the above technical solution: the driving member comprises a connecting block and a first hydraulic cylinder, the bottom end of the first hydraulic cylinder is hingedly connected to the connecting block, the bottom of the connecting block is fixedly connected with the base, and the top end of the first hydraulic cylinder is hingedly connected with the right wedge block.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The driving member drives the wedge block to move and drives the shooting mechanism to move to realize shooting diameter adjustment, so that the device has the advantages of adjustable shooting diameter, simple and efficient operation, improved detection efficiency and more flexibility. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view cross-sectional structure schematic view of the utility model;

[0015] Figure 2 It is a top view structure schematic view of the utility model;

[0016] Figure 3 It is a part of the utility model three-dimensional structure schematic view;

[0017] Figure 4 It is a cross rod three-dimensional structure schematic view of the utility model.

[0018] Explanation of reference numerals in the drawing:

[0019] 1, base; 2, support; 3, winding mechanism; 31, second hydraulic cylinder; 32, side plate; 33, winding roller; 34, servo motor; 4, large-diameter pipe; 41, lamp tube; 5, shooting mechanism; 51, cross rod; 511, sleeve; 52, guide rod; 53, camera; 54, spring; 6, adjusting ring; 7, wedge block; 8, driving member; 81, connecting block; 82, first hydraulic cylinder. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described in connection with the drawings in the embodiments of the utility model.

[0021] Please refer to Figures 1-4 In the utility model, the cable crack detection device based on machine vision, including base 1, two groups of supports 2 are fixedly connected to the top of base 1, and winding mechanism 3 is installed on support 2, large diameter pipe 4 is fixedly connected on base 1, annular distribution shooting mechanism 5 is movably installed in the inside of large diameter pipe 4, adjusting ring 6 is rotatably connected to the outside of large diameter pipe 4, wedge block 7 is fixedly connected to the outside of adjusting ring 6 at equal distance, wedge block 7 is correspondingly matched with shooting mechanism 5, and driving part 8 is installed between base 1 and wedge block 7 on the right side.

[0022] In the utility model, base 1 is used as the device main body, first, winding a circle on winding mechanism 3 at one end of the cable, then the end of the cable is passed through the inside of large diameter pipe 4, then winding the cable on winding mechanism 3 at the other end, then starting two winding mechanism 3 to drive the cable to move linearly through the inside of large diameter pipe 4, and starting shooting mechanism 5 to detect the cable in all directions, when the diameter of the cable is enlarged, starting driving part 8 to drive adjusting ring 6 to rotate, so as to drive wedge block 7 to move and extrude shooting mechanism 5 to move outward centrifugally, the diameter of the shooting area is enlarged, the cable with larger diameter is convenient to pass through, and the shooting is fully covered, otherwise, starting driving part 8 to drive adjusting ring 6 to rotate reversely, so as to reduce the shooting area, the device has the advantages that the shooting diameter is adjustable, the operation is simple and efficient, the detection efficiency is improved, and the device is more flexible, the shooting outer diameter is fixed in the prior art, the diameter of the cable to be detected is single, the cable with different diameters needs to replace the detection equipment, the flexibility is poor, and the use is not convenient enough.

[0023] Please refer to Figure 1 Wherein: shooting mechanism 5 includes cross bar 51, straight line arranged guide rod 52, camera 53 and spring 54, cross bar 51 is arranged in parallel on the outside of large diameter pipe 4, one end of guide rod 52 is fixedly connected with cross bar 51, the other end of guide rod 52 penetrates to the inside of large diameter pipe 4, camera 53 is fixedly installed to one end of guide rod 52 in the inside of large diameter pipe 4, spring 54 is sleeved on the outside of guide rod 52, one end of spring 54 is fixedly connected with the inner wall of large diameter pipe 4, and the other end of spring 54 is fixedly connected with the outside of guide rod 52.

[0024] In the utility model, through guide rod 52 on cross bar 51, camera 53 is fixed, which is arranged in parallel with the cable, and under the action of spring 54, when the shooting inner diameter needs to be reduced, camera 53 is driven to move inward by spring 54.

[0025] Please refer toFigure 1 With Figure 3 Wherein: the inner wall of the large-diameter pipe 4 is fixedly connected with the lamp tubes 41 arranged at equal distances, and the lamp tubes 41 are arranged and distributed at intervals from the camera 53.

[0026] In the utility model, the inside of the large-diameter pipe 4 is omnidirectionally shot by the lamp tubes 41, so that the light compensation is realized to realize the high-definition shooting.

[0027] Please refer to Figure 2 , Figure 3 With Figure 4 Wherein: the outer side of the horizontal rod 51 is rotationally connected with the sleeve 511, and the outer side of the sleeve 511 is in sliding contact with the outer side of the wedge-shaped block 7.

[0028] In the utility model, the sleeve 511 makes the friction force between the wedge-shaped block 7 and the sleeve 511 reduced, so that the horizontal rod 51 is more easily lifted up, and the expanded shooting inner diameter is realized.

[0029] Please refer to Figure 1 With Figure 2 Wherein: the winding mechanism 3 comprises two second hydraulic cylinders 31, two side plates 32, a winding roller 33 and a servo motor 34, the bottom end of the second hydraulic cylinder 31 is fixedly connected with the base 1, the top end of the second hydraulic cylinder 31 is fixedly connected with the bottom of the side plate 32, the two ends of the winding roller 33 are rotationally connected between the two side plates 32, the servo motor 34 is fixedly installed on the side plate 32 on one side, the output end of the servo motor 34 is fixedly connected with the winding roller 33 through a shaft coupling, and the outer side of the side plate 32 is slidingly connected to the outer side of the support 2.

[0030] In the utility model, the second hydraulic cylinder 31 is started to drive the two side plates 32 to vertically slide along the support 2, so as to push the winding roller 33 and the servo motor 34 to vertically adjust the height, so as to adapt to cables of different diameters, and the servo motor 34 is started to drive the winding roller 33 to rotate, so as to realize the cable winding drive.

[0031] Please refer to Figure 2 Wherein: the driving part 8 comprises a connecting block 81 and a first hydraulic cylinder 82, the bottom end of the first hydraulic cylinder 82 is hingedly connected to the connecting block 81, the bottom of the connecting block 81 is fixedly connected with the base 1, and the top end of the first hydraulic cylinder 82 is hingedly connected with the wedge-shaped block 7 on the right side.

[0032] In the utility model, the first hydraulic cylinder 82 is started to movably support the connecting block 81, drive the wedge-shaped block 7 to move, so as to drive the adjusting ring 6 to rotate along the outer side of the large-diameter pipe 4, so as to realize the synchronous movement of the other wedge-shaped blocks 7.

[0033] The above merely describes a preferred embodiment of the present application; the scope of protection of the present application is not limited thereto. Any skilled person in the art, according to the technical scheme and improvement concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the scope of protection of the present application.

Claims

1. A machine vision based cable crack detection apparatus comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with two groups of supports (2), the winding mechanism (3) is installed on the support (2), the base (1) is fixedly connected with a large-diameter pipe (4), the inside of the large-diameter pipe (4) is movably installed with annularly distributed shooting mechanisms (5), the outside of the large-diameter pipe (4) is rotatably connected with an adjusting ring (6), the outside of the adjusting ring (6) is fixedly connected with equidistantly arranged wedge blocks (7), the wedge blocks (7) are correspondingly matched with the shooting mechanisms (5), and the base (1) and the right side wedge block (7) are installed with a driving piece (8).

2. The machine vision-based cable crack detection apparatus of claim 1, wherein: The shooting mechanism (5) comprises a cross rod (51), linearly arranged guide rods (52), a camera (53) and springs (54), the cross rod (51) is arranged in parallel on the outside of the large-diameter pipe (4), one end of the guide rod (52) is fixedly connected with the cross rod (51), the other end of the guide rod (52) penetrates into the inside of the large-diameter pipe (4), the camera (53) is fixedly installed to one end of the guide rod (52) located in the inside of the large-diameter pipe (4), and the spring (54) is sleeved on the outside of the guide rod (52), one end of the spring (54) is fixedly connected with the inner wall of the large-diameter pipe (4), and the other end of the spring (54) is fixedly connected with the outside of the guide rod (52).

3. The machine vision-based cable crack detection apparatus of claim 2, wherein: The inside of the large-diameter pipe (4) is fixedly connected with equidistantly arranged lamp tubes (41), and the lamp tubes (41) are arranged and distributed in a spaced manner with the camera (53).

4. The machine vision-based cable crack detection apparatus of claim 2, wherein: The outside of the cross rod (51) is rotatably connected with a sleeve (511), and the outside of the sleeve (511) is in sliding contact with the outside of the wedge block (7).

5. The machine vision-based cable crack detection apparatus of claim 1, wherein: The winding mechanism (3) comprises two second hydraulic cylinders (31), two side plates (32), a winding roller (33) and a servo motor (34), the bottom end of the second hydraulic cylinder (31) is fixedly connected with the base (1), the top end of the second hydraulic cylinder (31) is fixedly connected with the bottom of the side plate (32), the two ends of the winding roller (33) are rotatably connected between the two side plates (32), the servo motor (34) is fixedly installed on one side of the side plate (32), the output end of the servo motor (34) is fixedly connected with the winding roller (33) through a shaft coupling, and the outside of the side plate (32) is slidingly connected to the outside of the support (2).

6. The machine vision-based cable crack detection apparatus of claim 1, wherein: The driving piece (8) comprises a connecting block (81) and a first hydraulic cylinder (82), the bottom end of the first hydraulic cylinder (82) is hinged to the connecting block (81), the bottom of the connecting block (81) is fixedly connected with the base (1), and the top end of the first hydraulic cylinder (82) is hinged with the right side wedge block (7).

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