Zoom visual inspection device for high-voltage vertical tower cable

Abstract

The utility model provides a variable-focus visual detection device for a high-voltage vertical tower cable, which belongs to the field of cable surface detection equipment and comprises an electric guide rail, a detection machine head and an image acquisition mechanism. The detection machine head is arranged at one end of the electric guide rail and moves back and forth on the production line through the electric guide rail; the detection machine head is of an openable structure, and an image acquisition mechanism and an electric push rod for controlling opening and closing are arranged in the detection machine head; the image acquisition mechanism is provided with a moving slide rail, so that the image acquisition mechanism can move back and forth. According to the utility model, the problems of image acquisition and defect detection in the cable quality defect detection process by using the artificial intelligence machine vision technology are solved.

Description

Technical Field

[0001] The utility model relates to the field of cable surface detection equipment, in particular to a variable-focus visual detection device for high-voltage tower cables. Background Art

[0002] At present, in the field of high-voltage cable production, surface defect detection still relies on manual work, and this is also the case in the high-temperature production environment of towers. This method is not only inefficient and costly, but also difficult to ensure the consistency and traceability of the test data. With the continuous advancement of science and technology, although artificial intelligence machine vision technology has gradually been applied to the field of cable quality inspection, it is limited by the harsh high-temperature production environment of towers, which means that manual work cannot be too involved, and the surface quality of cables cannot be observed from all angles. There is still a lack of a variable-focus visual inspection device for high-voltage tower cables on the market.

[0003] In view of this, a variable-focus visual inspection device for high-voltage tower cables is studied to solve the problem of cable surface defect detection in the current high-temperature production environment of towers. This device should be highly versatile, able to adapt to the inspection needs of cables of different specifications, adapt to a variety of installation scenarios, and improve the uniformity and stability of image quality, thereby increasing the detection rate of various defects in the cable production process and ensuring the steady improvement of cable production quality. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a variable-focus visual inspection device for high-voltage tower cables, which solves the problems of image acquisition and defect detection in the process of cable quality defect detection using artificial intelligence machine vision technology.

[0005] The technical solution of the utility model is:

[0006] A variable-focus visual inspection device for high-voltage tower cables, comprising an electric guide rail, a detection head, and an image acquisition mechanism;

[0007] The inspection head is set at one end of the electric guide rail and moves back and forth on the production line through the electric guide rail;

[0008] The detection head is set to an openable and closable structure, with an image acquisition mechanism and an electric push rod for controlling the opening and closing arranged inside;

[0009] The image acquisition mechanism is provided with a movable slide rail, so that the image acquisition mechanism can move forward and backward.

[0010] Furthermore,

[0011] The electric guide rails include two cylindrical guide rails. The detection machine head is fixed on the cylindrical guide rails and driven by an electric push rod to move forward and backward along the direction of the electric guide rails.

[0012] The upper part of the detection head is the fixed back plate of the head, and the lower part is the left and right detection mechanisms. The two detection mechanisms are hinged with a rotating shaft rod, and the rotating shaft rod is set on the fixed back plate; the two detection mechanisms are pushed by an electric push rod to achieve synchronous opening and closing, and a round hole is left in the middle after the detection head is closed.

[0013] The fixed back plate is U-shaped, and the closed positions of the two detection mechanisms are arranged corresponding to the openings of the U-shaped fixed back plate.

[0014] The image acquisition mechanism includes an industrial camera, a lens and a corresponding moving mechanism, and the cameras are distributed in a 360° ring.

[0015] The industrial cameras are arranged around the circular hole; each industrial camera is equipped with a servo motor and a movable slide rail, and can move forward and backward along the direction of the slide rail.

[0016] There is a pair of semi-circular LED light sources on both sides of the industrial camera. The semi-circular LED light sources are fixed on the detection head and can be opened and closed synchronously with the detection head.

[0017] An arc-shaped light diffuser is installed outside the light source, and the light diffuser reserves an opening for the lens for the camera to collect cable images.

[0018] The beneficial effects of the utility model are:

[0019] 1) The automatic opening and closing design of the image acquisition device supports the installation and removal of cable quality inspection equipment, which is convenient for users.

[0020] 2) The image acquisition device supports up and down movement to meet the height requirements of cables in different production lines.

[0021] 3) The industrial camera has a 360-degree surround setting, which supports the forward and backward movement of the industrial camera and automatically adjusts the working distance of the camera to ensure that clear images can be captured for cables of different diameters.

[0022] 4) It supports the forward and backward movement of the industrial camera, the up and down lifting of the support guide wheel, and the lifting and forward and backward movement of the image acquisition device. It has a high degree of automation and is more convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the installation of each part of the utility model;

[0024] Figure 2 This is the working diagram of the electric guide rail;

[0025] Figure 3 It is a schematic diagram of the overall structure of the detection head;

[0026] Figure 4 It is a schematic diagram of the corresponding arrangement of the LED light source, the light shielding diffusion plate and the detection mechanism;

[0027] Figure 5 It is an overall schematic diagram of the image acquisition mechanism;

[0028] Figure 6 It is a perspective view of the overall structure of the utility model. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] The utility model provides a variable-focus visual detection device for high-voltage tower cables, comprising an electric guide rail 1, a detection head 2, and an image acquisition mechanism 3.

[0031] The electric guide rail 1 is composed of two cylindrical guide rails 11 and 12. The detection head 2 is fixed on the guide rails. An electric push rod 13 is arranged on one side of the guide rails, so that the detection head 2 can move forward and backward along the guide rails.

[0032] The upper part of the detection head 2 is the fixed back plate 21 of the head, which enhances the stability of the head during the opening and closing process and avoids shaking. The lower part is the left and right detection mechanisms 22 and 23, which are connected by a rotating shaft 24 and an electric push rod 25 is used to control the opening and closing of the head. After the head 2 is closed, a round hole is left in the middle, and the cable 26 passes through the middle. At the same time, the opening and closing design allows the cable to pass from the side, and the head can exit the production line at any time.

[0033] The image acquisition mechanism 3 uses four area array industrial cameras 31 and industrial lenses 32. The cameras are installed perpendicular to the direction of the cable, and each camera is arranged around the cable in a 90° interval. Each camera is equipped with a servo motor 33 and a movable slide rail 34. The servo motor moves the camera forward and backward along the slide rail 34 to keep the object distance unchanged during the change of the wire diameter.

[0034] On both sides of the camera, there is a pair of semi-circular low-angle LED light sources 35, which are installed on the detection head and can be opened and closed with the head. A 180° arc-shaped light diffuser 36 is installed outside the light source. The two arc-shaped diffusers can be opened and closed with the detection head. The surface of the light-shielding diffuser only has a reserved opening 37 for the lens, which is used for the camera to collect cable images.

[0035] The above is only a preferred embodiment of the utility model, which is only used to illustrate the technical solution of the utility model, and is not used to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model are included in the protection scope of the utility model.

Claims

1. A variable-focus visual inspection device for high-voltage tower cables, characterized in that: Including electric guide rail, detection head, image acquisition mechanism; The inspection head is set at one end of the electric guide rail and moves back and forth on the production line through the electric guide rail; The detection head is set to an openable and closable structure, with an image acquisition mechanism and an electric push rod for controlling the opening and closing arranged inside; The image acquisition mechanism is provided with a movable slide rail, so that the image acquisition mechanism can move forward and backward.

2. The device according to claim 1, characterized in that The electric guide rails include two cylindrical guide rails. The detection machine head is fixed on the cylindrical guide rails and driven by an electric push rod to move forward and backward along the direction of the electric guide rails.

3. The device according to claim 1, characterized in that The upper part of the detection head is the fixed back plate of the head, and the lower part is the left and right detection mechanisms. The two detection mechanisms are hinged with a rotating shaft rod, and the rotating shaft rod is set on the fixed back plate; the two detection mechanisms are pushed by an electric push rod to achieve synchronous opening and closing, and a round hole is left in the middle after the detection head is closed.

4. The device according to claim 3, characterized in that The fixed back plate is U-shaped, and the closed positions of the two detection mechanisms are arranged corresponding to the openings of the U-shaped fixed back plate.

5. The device according to claim 3 or 4, characterized in that The image acquisition mechanism includes an industrial camera, a lens and a corresponding moving mechanism, and the cameras are distributed in a 360° ring.

6. The device according to claim 5, characterized in that The industrial cameras are arranged around the circular hole; each industrial camera is equipped with a servo motor and a movable slide rail, and can move forward and backward along the direction of the slide rail.

7. The device according to claim 6, characterized in that A pair of semi-circular LED light sources are respectively arranged on both sides of the industrial camera. The semi-circular LED light sources are fixed on the detection head and can be opened and closed synchronously with the detection head.

8. The device according to claim 6, characterized in that An arc-shaped light diffuser is installed outside the light source, and the light diffuser reserves an opening for the lens for the camera to collect cable images.

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