CN219092788U

CN219092788U - Automatic detection device for surface deviation of disc insulator core disc

Info

Publication number: CN219092788U
Application number: CN202222859393.4U
Authority: CN
Inventors: 刘辉
Original assignee: Hubei Egrid Power Technology Co ltd
Current assignee: Hubei Egrid Power Technology Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-05-30
Anticipated expiration: 2032-10-28

Abstract

The utility model provides an automatic detection device for the surface deviation of a disc insulator core disc, which comprises the following components: the device comprises a marking frame, a scanning assembly and a supporting table, wherein the marking frame is arranged on the ground, and a coding sheet is arranged on the inner side wall of the marking frame; the scanning assembly is arranged on the ground inside the marking frame and connected with a computer, and comprises a mechanical arm and a scanning mechanism arranged on the mechanical arm; the supporting table is arranged on the ground below the scanning mechanism and is used for bearing the insulator core disc to be detected. According to the utility model, three-dimensional point cloud data of the surface of the insulator core to be detected and coded sheet and mark point information on a mark frame are collected through a scanning mechanism, a data processing module on a computer performs data processing to construct a three-dimensional model of the insulator core, and finally the obtained three-dimensional model is subjected to deviation comparison with a pre-stored CAD model.

Description

Automatic detection device for surface deviation of disc insulator core disc

Technical Field

The utility model relates to the technical field of insulator core disc surface scanning equipment, in particular to an automatic detection device for surface deviation of a disc-shaped insulator core disc.

Background

The mixed insulator is made by covering a layer of vulcanized silicone rubber on the porcelain/glass insulator, the excellent mechanical property and aging property of the porcelain/glass insulator are reserved, and the pollution flashover resistance is greatly improved. When the mixed insulator is produced, the insulator core disc is placed in a standard special mould, after mould closing, the silicon rubber is injected, after high-temperature vulcanization, demoulding is carried out, and the surface of the insulator core disc is coated with the silicon rubber.

However, due to the processing technology, the individual shapes of the processed insulator core discs are different, and compared with the CAD model, some parts of the surfaces of the core discs have deviation of even more than 5 millimeters, and the forming cavity in the injection mold is designed according to the standard size, when the core discs with the individual shape difference are placed in the forming cavity of the standard mold for injection molding, the thickness of a glue layer attached to the surfaces of the core discs is easily uneven, the phenomenon that the core discs are broken even in the injection molding process due to the larger deviation of the shapes of the core discs exists, the problem of silicon rubber waste exists, and broken fragments are attached to the forming cavity of the mold, the shutdown and the damage of the mold are easily caused, so that the production efficiency is seriously affected. At present, most manufacturers do not have a step of screening the core disc before injection molding of the silicone rubber, but fewer manufacturers adopt a manual sampling inspection mode, and the manual sampling inspection mode has the problems of low detection efficiency, incapability of guaranteeing the detection accuracy, missed detection and unavoidable core disc breakage and the like in the subsequent injection molding step.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides an automatic detection device for the surface deviation of a disc insulator core disc, which comprises the following components: the scanning device comprises a marking frame 1, a scanning assembly and a supporting table 5, wherein the marking frame 1 is arranged on the ground, and a coding sheet 12 is arranged on the inner side wall of the marking frame 1; the scanning assembly is arranged on the ground inside the marking frame 1 and connected with the computer 6, and comprises a mechanical arm 3 and a scanning mechanism 4 arranged on the mechanical arm 3; the supporting table 5 is arranged on the ground below the scanning mechanism 4, the supporting table 5 is used for bearing an insulator core disc 7 to be detected, and the diameter of the supporting table 5 is slightly larger than the diameter of a cylindrical barrel of the insulator core disc 7 to be detected.

Further, the marking frame 1 includes three marking plates 11, two adjacent marking plates 11 are vertically connected, and the marking plate 11 on the left side is parallel to the marking plate 11 on the right side.

Further, the scanning assembly further comprises a supporting rod 2, the mechanical arm 3 is arranged on the supporting rod 2, and a button 21 for controlling the working state of the mechanical arm 3 is arranged on the supporting rod 2.

Further, the mechanical arm 3 includes six rotary joints, and a clamping jaw 31 for clamping the scanning mechanism 4 is disposed at the bottom of the mechanical arm 3.

According to the automatic detection device for the surface deviation of the disc-shaped insulator core disc, when the automatic detection device is used for detecting, the mechanical arm drives the scanning mechanism to move, the laser module emits laser beams to the surface of the insulator core disc to be detected, the scanning camera receives the light beams reflected by the surface of the insulator core disc to be detected so as to form scanning point cloud data in the scanning camera, the collecting lens collects coding sheets and marking points on the marking frame, the data processing module on the computer calculates the position of the scanning mechanism through the coding sheets and the marking points information, data processing is carried out on the scanning point cloud data collected by the scanning camera according to the position data of the scanning mechanism, a three-dimensional model of the insulator core disc is constructed, finally, the three-dimensional model obtained through scanning is aligned with a pre-stored CAD model in a fitting or characteristic alignment mode to carry out deviation comparison, if the detected size deviation is within a tolerance range, the three-dimensional model is qualified, otherwise, the three-dimensional model is not qualified.

Drawings

FIG. 1 is a schematic diagram of a device for automatically detecting the surface deviation of a disc-shaped insulator core disc;

FIG. 2 is a schematic view of a scanning mechanism according to the present utility model;

FIG. 3 is a schematic view of a three-dimensional scanner with clamping jaws according to the present utility model;

wherein, 1, marking a frame; 11. a marking plate; 12. a code sheet; 13. marking points; 14. a reference lever; 2. a support rod; 21. a button; 3. a mechanical arm; 31. a clamping jaw; 4. a scanning mechanism; 41. a clamping part; 42. a scanning camera; 43. a laser module; 44. collecting a lens; 5. a support table; 6. a computer; 61. a placement table; 7. an insulator core; 8. indoor ground.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The disk-shaped insulator refers to a disk-shaped suspension porcelain insulator or a disk-shaped suspension glass insulator; and the core disc refers to an insulating piece of the disc-shaped insulator, and comprises a cylindrical barrel and an umbrella skirt connected with the cylindrical barrel.

As shown in fig. 1 to 3, the present utility model provides an automatic detecting device for surface deviation of a disc-shaped insulator core, comprising: marking frame 1, scanning assembly.

The marking frame 1 is perpendicular to the indoor ground 8, the marking frame 1 comprises three marking plates 11, two adjacent marking plates 11 are vertically connected, and the marking plate 11 positioned on the left side is parallel to the marking plate 11 positioned on the right side; the three marking plates 11 are provided with a coding sheet 12 and marking points 13 on the inner side wall, the inner side wall of the marking plate 11 positioned in the middle is also fixedly provided with a reference rod 14, the coding sheet 12 and the marking points 13 are a plurality of and are arranged at intervals, the coding sheets 12 are different in number, the distance between the adjacent coding sheets 12 and marking points 13 is about 25cm, and the marking points 12 and the coding sheets 13 are used for playing a role of reversely positioning scanning positions; the marking plate 11 may be made of concrete, and may also be made of a metal frame and carbon fiber plates disposed in the metal frame.

The scanning assembly is arranged on the indoor ground 8 on the inner side of the marking frame 1, the scanning assembly is positioned on the inner side of the marking frame 1, so that the scanning operation is convenient, the influence of the external environment is not easy to occur, one side of the marking frame 1 is communicated with the external environment, the conveying tool is convenient to convey the insulator core disc to be detected to one side of the scanning assembly, and the insulator core disc after the scanning is finished is conveyed away by the conveying tool.

The scanning assembly comprises a supporting rod 2, a mechanical arm 3 and a scanning mechanism 4, wherein the supporting rod 2 comprises a vertical rod perpendicular to the indoor ground 8 and a cross rod arranged at the top of the vertical rod; the mechanical arm 3 is arranged at the bottom of the cross rod, the mechanical arm 3 comprises six rotary joints, a clamping jaw 31 for clamping the scanning mechanism 4 is arranged at the bottom of the mechanical arm 3, the mechanical arm 3 is used for driving the scanning mechanism 4 to move in a three-dimensional space, and the mechanical arm 3 comprises six rotary joints so as to better ensure the movement of the scanning mechanism 4 in the three-dimensional space, thereby scanning the extremely irregular geometric structure of the insulator core disc to be measured accurately; the supporting rod 2 is provided with a button 21 for controlling the mechanical arm 3 to start, pause and end, and the button 21 is convenient for an operator to control the motion state of the mechanical arm 3. Specifically, the support bar 2 is located at the middle of the inner side of the marker frame 1 to facilitate the calibration and reverse positioning of the scanning mechanism 4.

As shown in fig. 2, the scanning mechanism 4 includes a clamping portion 41, a scanning camera 42, a laser module 43, and an acquisition lens 44, where the clamping portion 41 is connected to the clamping jaw 31, so as to ensure that the clamping jaw 31 is firmly clamped, and prevent the scanning mechanism 4 from moving or shaking during the scanning process; the laser module 43 is configured to emit a laser beam to the surface of the insulator core 7 to be tested, the scanning camera 42 is located at two sides of the laser module 43, the scanning camera 42 is configured to receive the light beam reflected by the surface of the insulator core 7 to be tested, so as to form scanning point cloud data in the scanning camera 42, and the collecting lens 44 is configured to collect the code sheet 12 and the marking point 13 on the marking frame 1, so as to obtain spatial position information of the scanning mechanism 4; a supporting table 5 is arranged on the indoor ground 5 right below the scanning mechanism 4, the supporting table 5 is cylindrical, the supporting table 5 is used for bearing an insulator core disc 7 to be detected, and the diameter of the supporting table 5 is slightly larger than the outer diameter of a cylindrical barrel of the insulator core disc 7 to be detected; the scanning mechanism 4 is connected with a computer 6 through a communication interface.

During detection, the bottom end of the cylinder of the insulator core disc 7 to be detected is contacted with the top end of the supporting table 5, so that the insulator core disc 7 to be detected is placed on the supporting table 5, then, the mechanical arm 3 and the scanning mechanism are started, the mechanical arm 3 drives the scanning mechanism 4 to move, the laser module 43 emits laser beams to the surface of the insulator core disc 7 to be detected, the scanning camera 42 receives the light beams reflected by the surface of the insulator core disc 7 to be detected so as to form scanning point cloud data in the scanning camera 42, the collecting lens 44 collects the code sheet 12 and the marking points 13 on the marking frame 1, the data processing module on the computer 6 calculates the position of the scanning mechanism through the code sheet and the marking point information, and performs data processing on the scanning point cloud data collected by the scanning camera according to the position data of the scanning mechanism to construct a three-dimensional model of the insulator core disc, and finally, the three-dimensional model obtained through scanning is aligned with a pre-stored CAD model, so that deviation comparison can be performed, and whether the size deviation of the detected insulator core disc is within a tolerance range can be known. The diameter of the supporting table 5 is slightly larger than the outer diameter of the cylinder of the insulator core disc 7 to be tested, so that the scanning points collected by the scanning camera 42 come from the insulator core disc to be tested as much as possible, interference factors are reduced, and the accuracy of the subsequent data processing module calculation is facilitated. In order to facilitate the processing of data by the data processing module, the reference bar 14, all the code plates 12 and the marking points 13 need to be collected before the detection is started, and accurate spatial position marks are established.

The indoor floor 8 is also provided with a placement table 61 for carrying the computer 6, and the placement table 61 is positioned outside the marking frame 1 so as not to affect the scanning operation of the scanning mechanism.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a disk insulator core disc surface deviation automatic checkout device which characterized in that includes:

the marking frame (1), the marking frame (1) is arranged on the ground, and the inner side wall of the marking frame (1) is provided with a coding sheet (12);

the scanning assembly is arranged on the ground inside the marking frame (1), is connected with the computer (6), and comprises a mechanical arm (3) and a scanning mechanism (4) arranged on the mechanical arm (3);

the supporting table (5), supporting table (5) set up on the ground of scanning mechanism (4) below, supporting table (5) are used for bearing insulator core dish (7) of awaiting measuring, the diameter of supporting table (5) slightly is greater than the diameter of the cylinder of insulator core dish (7) of awaiting measuring.

2. The automatic detection device for the surface deviation of a disc-shaped insulator core according to claim 1, wherein the marking frame (1) comprises three marking plates (11), two adjacent marking plates (11) are vertically connected, and the marking plate (11) on the left side is parallel to the marking plate (11) on the right side.

3. The automatic detection device for the deviation of the surface of the disc-shaped insulator core disc according to claim 1, wherein the scanning assembly further comprises a supporting rod (2), the mechanical arm (3) is arranged on the supporting rod (2), and a button (21) for controlling the working state of the mechanical arm (3) is arranged on the supporting rod (2).

4. The automatic detection device for the surface deviation of the disc-shaped insulator core disc according to claim 1, wherein the mechanical arm (3) comprises six rotary joints, and a clamping jaw (31) for clamping the scanning mechanism (4) is arranged at the bottom of the mechanical arm (3).