CN115143890B

CN115143890B - Insulator structure parameter measuring system and method based on three-dimensional scanning

Info

Publication number: CN115143890B
Application number: CN202210789014.0A
Authority: CN
Inventors: 付超; 张锐; 武文华; 徐偲达; 全姗姗; 张虎; 汤霖; 梁进祥; 彭磊; 周志伟; 邓杰杰; 杨磊; 袁光裕; 江山; 郭靖; 江玲; 李玮东; 廖星宇
Original assignee: China Electric Power Research Institute Co Ltd CEPRI
Current assignee: China Electric Power Research Institute Co Ltd CEPRI
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2022-12-23
Anticipated expiration: 2042-07-06
Also published as: CN115143890A

Abstract

The invention provides a three-dimensional scanning-based insulator structure parameter measuring system and method. The device includes: a support frame; the first clamping piece is arranged on the support frame; the second clamping piece is positioned below the first clamping piece and movably arranged on the supporting frame, and the second clamping piece and the first clamping piece are arranged at intervals; the measuring probe is arranged on one side of the support frame; and the data processing module is connected with the measuring probe. The invention is clamped with the foot ball of the insulator through the first clamping piece; the second clamping piece is clamped with the cap pit of the insulator and is connected with the supporting frame in a mode of moving up and down along the vertical direction, so that the insulator is tensioned and clamped on the first clamping piece and the second clamping piece; acquiring the distance between the first identification structure and the second identification structure through the measuring head; the structural height of the insulator is calculated through the data processing module based on the data fed back by the measuring head, so that the problem that the structural height of the insulator is difficult to measure is solved.

Description

Insulator structure parameter measuring system and method based on three-dimensional scanning

Technical Field

The invention relates to the technical field of insulator detection, in particular to a three-dimensional scanning-based insulator structure parameter measuring system and method.

Background

The insulation device, one of the important components of the power system, plays a role of electrical insulation and mechanical support. According to different structures and using methods, the insulating equipment comprises a line insulator, a post insulator, a lightning arrester, a sleeve and the like, and has the structural characteristics of large size, multiple curved surfaces and the like. The structural parameters of the insulation equipment affect not only the electrical performance but also the mechanical fit performance. With the continuous promotion of extra-high voltage engineering construction, insulating equipment is large in using amount and various in types, and is always a key monitoring object of extra-high voltage engineering, the traditional manual measurement method is still adopted for measuring the structural parameters of the existing extra-high voltage engineering, the measurement method is original, the measurement efficiency is extremely low, the influence of human factors cannot be avoided, and meanwhile, small structural deviations possibly causing quality problems cannot be identified and screened, so that hidden dangers are buried for safe and stable operation of a power grid system.

The Chinese publication number is: CN107167076A discloses a three-dimensional scanning device for a suspension insulator, which aims at a novel three-dimensional scanning device for measuring parameters such as disc diameter, axial deviation, radial deviation, creepage distance and the like of the suspension insulator, and comprises a main body frame, a suspension device, a power system, a laser distance measuring device and a data processing part which are integrated into a whole, wherein a laser distance meter is used for scanning three-dimensional physical characteristics of the appearance of the suspension insulator to reconstruct a three-dimensional model and indirectly measure some parameters of the suspension insulator; the method comprises the steps of scanning the suspension insulator for multiple times by using a laser ranging device, transmitting data obtained by scanning to a computer, processing the data to obtain three-dimensional model point cloud data of the suspension insulator, reversely reconstructing a three-dimensional model of the suspension insulator in the computer according to the point cloud data, and finally directly obtaining the parameters through analyzing the reconstructed three-dimensional model.

Although the three-dimensional scanning device can solve the defects of large error, low precision and capability of measuring only a single parameter in the existing measuring method, the device can also realize the measurement of some parameters of the insulator: disc diameter, axial deviation, radial deviation and creepage parameter, however, in the installation of insulator, adopt interconnect between a plurality of insulators to form insulator group, insulator group's both ends insulator carries out mutual joint with two electrically conductive pieces again, consequently, should also measure its structure height to the measurement of insulator, as shown in fig. 1, insulator 1 includes: a ball 11 and a socket 12; the fastening surface 111 is the lower surface of the ball 11, the fastening surface 121 is the upper surface of the inner side of the cap cavity 12, and the structural height is the distance between the fastening surface 111 and the insulating surface 121. In the actual operation in-process, the distance between the high-tension line is fixed, chooses the insulator of co-altitude not for use through the distance between the high-tension line, if the insulator adopts improperly, then the insulator again with the installation of high-tension line in, the insulator group can appear perhaps can appear the lax state, the fixed mounting between the installation insulator of this kind of form is unstable, or can appear the insulator group and can not install on the high-tension line, the installation of insulator can all be influenced to above-mentioned two kinds of circumstances.

Therefore, the structural height of the insulator plays an important role in the installation process of the insulator, and when the three-dimensional scanning device fixes the insulator 1, the clamping piece is usually fixedly clamped with the foot ball 11 and the cap socket 12, so that the clamping piece shields the foot ball 11 and the cap socket 12, and the measurement of the structural height of the insulator 1 is influenced.

Disclosure of Invention

In view of the above, the invention provides a three-dimensional scanning-based insulator structure parameter measurement system and method, and aims to solve the problem that the height of a structure cannot be directly measured due to the fact that a foot ball and a cap pit of an existing insulator are shielded.

In one aspect, the present invention provides a three-dimensional scanning-based insulator structure parameter measurement system, where the measurement device includes: a support frame; the first clamping piece is arranged on the support frame and used for clamping a foot ball of the insulator so that a clamping surface of the foot ball is in abutting contact with a first supporting surface of the first clamping piece; the outer wall of the first clamping piece is provided with a first identification structure for identifying the position of the first clamping piece; the second clamping piece is positioned below the first clamping piece and is connected with the supporting frame in a mode of moving up and down along the vertical direction, the second clamping piece and the first clamping piece are arranged at intervals, and the second clamping piece is used for clamping a cap socket of an insulator so that a clamping surface of the cap socket is in abutting contact with a second supporting surface of the second clamping piece, and the insulator is installed between the second clamping piece and the first clamping piece; the outer wall of the second clamping piece is provided with a second identification structure for identifying the position of the second clamping piece; the measuring probe is arranged on one side of the supporting frame and used for measuring the distance between the first identification structure and the second identification structure; and the data processing module is connected with the measuring probe and used for receiving the distance between the first identification structure and the second identification structure measured by the measuring probe and calculating the structural height of the insulator by combining the distance from the first supporting surface to the first identification structure and the distance from the second supporting surface to the second identification structure.

Further, in the three-dimensional scanning-based insulator structure parameter measuring system, the second clamping member includes: a cylinder barrel; one end of the sliding rod is arranged outside the cylinder barrel and provided with a buckle for clamping the cap nest, the other end of the sliding rod is arranged inside the cylinder barrel and is in sealed sliding connection with the inner wall of the cylinder barrel, so that the second supporting surface and the cylinder barrel synchronously move up and down until the second supporting surface abuts against the clamping surface of the cap nest, and the sliding rod and the cylinder barrel can slide relatively after the second supporting surface abuts against the clamping surface of the cap nest; and the buckle faces the bottom surface of the cylinder barrel to serve as a second supporting surface.

Furthermore, in the insulator structure parameter measurement system based on three-dimensional scanning, the slide bar is provided with scale marks, and at least part of the scale marks are located outside the cylinder barrel and used for displaying the position of the slide bar relative to the cylinder barrel so as to determine whether the slide bar slides relative to the cylinder barrel.

Further, the above three-dimensional scanning-based insulator structure parameter measurement system, the slide bar includes: the first end of the connecting part is connected with the cylinder barrel in a sealing and sliding mode, and the scale mark and the second identification structure are arranged on the connecting part; one end of the guide part is connected with the second end of the connecting part, and the buckle is arranged at the other end of the guide part and used for guiding when the connecting part slides so as to realize automatic centering between the buckle and the cap pit.

Further, in the three-dimensional scanning-based insulator structure parameter measuring system, the guide portion is an inverted conical rod, a large-diameter end of the inverted conical rod is connected with the buckle, a small-diameter end of the inverted conical rod is connected with the second end of the connecting portion, and the connecting portion is a round rod.

Furthermore, in the insulator structure parameter measurement system based on three-dimensional scanning, an adjusting plate is arranged on one side of the cylinder barrel, which faces away from the slide rod, and an adjusting groove is formed in the adjusting plate; the end part of the cylinder barrel, close to the adjusting plate, is provided with an adjusting plate which is embedded inside the adjusting groove, and an adjusting redundant space is arranged between the adjusting plate and the adjusting groove and used for adjusting the horizontal position of the cylinder barrel so as to adjust the horizontal position of the buckle at the end part of the sliding rod.

Further, in the three-dimensional scanning-based insulator structure parameter measuring system, the adjusting groove includes: an opening part and a clamping part; the opening part is arranged on the wall surface of the adjusting plate facing the cylinder barrel, the clamping part is arranged in the adjusting plate, and the clamping part is communicated with the opening part; the opening part and the clamping part are coaxial round holes, and the aperture of the opening part is smaller than that of the clamping part, so that the end part of the cylinder barrel extends into the clamping part from the opening part and limits the adjusting disc; the aperture of joint portion is greater than the aperture of adjustment disk to make the adjustment disk can carry out position control in the joint portion, realize the position control of cylinder.

Further, in the three-dimensional scanning-based insulator structure parameter measuring system, a buffer spring is arranged between the end part of the slide rod arranged in the cylinder barrel and the opening end of the cylinder barrel.

Further, the system for measuring the structural parameters of the insulator based on three-dimensional scanning further comprises: and the tensioning piece is connected with the second clamping piece and used for applying tensioning force to the second clamping piece so as to enable the second clamping piece to move up and down, and the insulator is tensioned and clamped on the first clamping piece and the second clamping piece.

Further, in the three-dimensional scanning-based insulator structure parameter measurement system, the tension member is a ball screw mechanism, and the ball screw mechanism includes: the screw rod and the nut are in threaded connection with the screw rod; the nut is connected with a driving piece and used for driving the nut to rotate; and the power output end of the screw rod is connected with the second clamping piece and is used for driving the second clamping piece to perform linear motion in the vertical direction when the nut rotates.

Furthermore, according to the insulator structure parameter measuring system based on three-dimensional scanning, a mechanical arm is arranged on one side of the supporting frame, and the measuring probe is arranged at the power output end of the mechanical arm and used for moving along with the power output end of the mechanical arm.

Further, in the three-dimensional scanning-based insulator structure parameter measurement system, a leveling member is arranged at the bottom of the support frame and used for adjusting the levelness of the first support surface and the second support surface.

Further, in the insulator structure parameter measurement system based on three-dimensional scanning, the measurement probe is further configured to scan the first clamping member and the second clamping member respectively, and send a scanning result to the data processing module; the data processing module is further used for respectively restoring the three-dimensional models of the first clamping piece and the second clamping piece based on the scanning result, measuring the distance between the first identification structure and the first supporting surface based on the three-dimensional model of the first clamping piece, and measuring the distance between the second identification structure and the second supporting surface based on the three-dimensional model of the second clamping piece.

Furthermore, in the insulator structure parameter measuring system based on three-dimensional scanning, the measuring probe is also used for scanning the insulator to obtain point cloud data of the insulator and sending the point cloud data to the data processing module; the data processing module is further used for performing three-dimensional modeling on the insulator based on the point cloud data to obtain a three-dimensional model of the insulator, and acquiring the creepage distance of the insulator based on the three-dimensional model of the insulator.

On the other hand, the invention also provides a method for measuring the structural parameters of the insulator based on three-dimensional scanning, which comprises the following steps: mounting an insulator to enable the insulator to be abutted between the first clamping piece and the second clamping piece; scanning the first clamping piece and the second clamping piece to obtain a first distance, wherein the first distance is the distance between a first identification structure of the first clamping piece and a second identification structure of the second clamping piece; calculating the structural height of the insulator according to the fact that the structural height of the insulator is equal to the first distance, the second distance and the third distance; the second distance is the distance between the first marking structure and the first supporting surface of the first clamping piece, and the third distance is the distance between the second marking structure and the second supporting surface of the second clamping piece.

Further, before the method for measuring the structural parameters of the insulator based on three-dimensional scanning calculates the structural height of the insulator according to the fact that the structural height of the insulator is equal to the first distance, the second distance and the third distance, the method for measuring the structural parameters of the insulator based on three-dimensional scanning further comprises the following steps: and acquiring the second distance and the third distance.

Further, in the method for measuring structural parameters of an insulator based on three-dimensional scanning, after the insulator is mounted and abutted between the first clamping piece and the second clamping piece, the method further comprises the following steps: scanning an insulator to obtain point cloud data of the insulator; and performing three-dimensional modeling on the insulator based on the point cloud data to obtain a three-dimensional model of the insulator, and acquiring the creepage distance of the insulator based on the three-dimensional model of the insulator.

The invention provides a three-dimensional scanning-based insulator structure parameter measuring system and method, wherein a first clamping piece is clamped with a foot ball of an insulator; the second clamping piece is clamped with the cap pit of the insulator and is connected with the supporting frame in a mode of moving up and down along the vertical direction, so that the insulator is tensioned and clamped on the first clamping piece and the second clamping piece; measuring the tensioned and clamped insulator through a measuring head to obtain the distance between the first identification structure and the second identification structure; the structure height of the insulator is calculated by combining the distance between the first marking structure and the first supporting surface and the distance between the second marking structure and the second supporting surface based on the first marking structure and the second marking structure through the data processing module, so that the technical problem that the structural parameters of the insulator are difficult to measure is solved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic structural view of an insulator;

fig. 2 is a schematic structural diagram of a three-dimensional scanning-based insulator structural parameter measurement system according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of the supporting member, the first clamping member, the second clamping member and the tensioning member provided in the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second clip member and a first clip member according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second clamping member according to an embodiment of the present invention;

fig. 6 is another schematic structural diagram of a second clip according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a slide bar according to an embodiment of the present invention;

fig. 8 is a flowchart of a method for measuring parameters of an insulator structure based on three-dimensional scanning according to an embodiment of the present invention;

fig. 9 is a block diagram of another flow chart of a method for measuring parameters of an insulator structure based on three-dimensional scanning according to an embodiment of the present invention;

fig. 10 is a further flowchart of the method for measuring insulator structure parameters based on three-dimensional scanning according to the embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The embodiment of the invention is mainly applied to the field of measurement of the structural height of an insulator 1, in the process of measuring the structural height of the insulator 1, in order to ensure that the scanning precision of a measuring probe is high, the insulator 1 is usually required to be fixed, only under the condition that the insulator 1 is stably fixed, the scanning precision of the measuring probe can be high, and therefore the parameter measurement precision of the subsequent insulator 1 can be ensured, and in order to ensure that the scanning result of the measuring probe can be stably imaged in three-dimensional software, usually, when the insulator 1 is fixed, a clamping member is usually fixedly clamped with a foot ball 11 and a cap socket 12 of the insulator 1, so that the insulator 1 can be accurately imaged after the measuring probe is scanned without being shielded by the clamping member, but the clamping member can shield the foot ball and the cap socket of the insulator 1, so that the measurement of the insulation distance of the insulator 1 can be influenced, in addition, because the production and processing process, the produced insulator 1 has errors, specifically, the two conditions of the foot ball, the insulator socket and the shaft socket of the insulator 1 are different coaxial structures, and the invention can be applied to various changes.

First device embodiment (mainly for the coaxial ball and socket of insulator 1):

referring to fig. 2 to 4, preferred structures of a three-dimensional scanning-based insulator structure parameter measurement system provided by an embodiment of the invention are shown. As shown in fig. 2 to 3, the apparatus includes: the device comprises a support frame 2, a first clamping piece 3, a second clamping piece 4, a tensioning piece 5, a measuring probe 6 and a data processing module 7; wherein the content of the first and second substances,

the support frame 2 plays a supporting role. Specifically, the supporting frame 2 is used for supporting a first clamping piece 3, a second clamping piece 4 and a tensioning piece 5; as shown in fig. 2, the support frame 2 may include: a fixed frame 21 and a table 22; the fixing frame 21 is fixedly connected to the workbench 22 so as to support and suspend the first clamping piece 3 through the fixing frame 21; the fixing frame 21 can be provided with a cross beam 211 to support and suspend the first clamping piece 3; the second clamping member 4 and the tension member 5 are supported by the table 22.

The first clamping piece 3 is arranged on the support frame 2 and used for clamping the foot ball 11 of the insulator 1, so that the clamping surface 111 of the foot ball 11 is in abutting contact with the first supporting surface 311 of the first clamping piece 3, namely the clamping surface 111 is supported by the first supporting surface 311; as shown in fig. 4, a first identification structure 321 is disposed on an outer wall of the first clip member 3, and is used for identifying a position of the first clip member 3. Specifically, as shown in fig. 3, the first clamping member 3 can be fixedly connected to the cross beam 211 for clamping with the ball 11 of the insulator 1; as shown in fig. 4, a clamping groove for clamping with the ball 11 of the insulator 1 may be formed on an end (a lower end as shown in fig. 4) of the first clamping member 3, for example, far away from the cross beam 211, and the structure of the clamping groove may be adapted to the ball 11 and may refer to the cap socket 12 of the insulator 1; the bottom surface in the clamping groove is used as a first supporting surface 311 to vertically support the buckling surface 111 of the football 11; and, can be equipped with first sign structure 321 on the outer wall of first joint spare 3, first sign structure 321 can be for marking the line structure and can follow the whole week setting of the outer wall of first joint spare 3, that is to say, in this embodiment, first sign structure 321 is circular sign line, first sign structure 321 place plane can be on a parallel with first supporting surface 311, certainly first sign structure 321 also can be other sign structures, does not do any restriction to it in this embodiment.

The second clamping piece 4 is positioned below the first clamping piece 3 and is connected with the support frame 2 in a mode of moving up and down along the vertical direction, the second clamping piece 4 and the first clamping piece 3 are arranged at intervals, and the second clamping piece 4 is used for clamping the cap socket 12 of the insulator 1 so that the clamping surface of the cap socket 12 is in abutting contact with the second supporting surface 4231 of the second clamping piece 4, and the insulator 1 is installed between the second clamping piece 4 and the first clamping piece 3; wherein, the outer wall of the second clamping piece 4 is provided with a second mark structure 4221 for marking the position of the second clamping piece 4. Specifically, the second clamping member 4 is arranged above the workbench 22 in a manner of being capable of moving up and down along the vertical direction, and is used for being clamped with the cap socket 12 of the insulator 1, and the clamping surface 121 of the cap socket 12 is in contact with the second supporting surface 4231 in a pressing manner through moving up and down, that is, when the insulator 1 is initially installed, a certain gap, namely, the movement redundancy exists between the cap socket 12 and the second clamping member 4, and the clamping surface 121 of the cap socket 12 is in contact with the second supporting surface 4231 in a pressing manner through movement of the second clamping member 4, so as to ensure the installation stability and tension of the insulator 1; as shown in fig. 4, for example, a buckle 423 for clamping with the cap socket 12 of the insulator 1 may be disposed on an end (top end shown in fig. 4) of the second clamping member 4 away from the working platform 22, the buckle 423 is adapted to the cap socket 12 of the insulator 1, and may refer to the ball 11 of the insulator 1, and a second clamping surface (bottom surface shown in fig. 4) of the buckle 423 facing the working platform 22 is used as a second supporting surface 4231, so that when the second supporting surface 4231 is in abutting contact with the clamping surface 121, the insulator 1 is installed between the second clamping member 4 and the first clamping member 3 in a tensioning and clamping state, that is, the buckle surface 111 is in abutting contact with the first supporting surface 311, and the clamping surface 121 is in abutting contact with the second supporting surface 4231; the outer wall of the second clip 4 may further be provided with a second identification structure 4221, the second identification structure 4221 may be a marking line structure and may be disposed along the entire circumference of the outer wall of the second clip 4, that is, in this embodiment, the second identification structure 4221 is a circular marking line, the plane where the second identification structure 4221 is located may be parallel to the second supporting surface 4231, and certainly, the second identification structure 4221 may also be other identification structures, which is not limited in this embodiment.

The tensioning piece 5 is connected with the second clamping piece 4 and used for applying tensioning force to the second clamping piece 4 to enable the second clamping piece 4 to move up and down, and further enabling the insulator 1 to be tensioned and clamped on the first clamping piece 3 and the second clamping piece 4. Specifically, the tension member 5 provides power for the second clamping member 4 to move up and down relative to the support member 2, and may be a ball screw mechanism, i.e. a screw-nut pair mechanism, in this embodiment, the ball screw mechanism may include a screw rod and a nut screwed with the screw rod, and the nut is connected with a driving member, e.g. a driving motor, for driving the nut to rotate; the power output end of the screw rod is connected with the second clamping piece 4 and is used for driving the second clamping piece 4 to perform linear motion in the vertical direction when the nut rotates; that is to say, the rotation of the driving motor is converted into the up-and-down reciprocating linear motion in the vertical direction of the second clamping piece 4 through the ball screw mechanism, and of course, the tensioning piece 5 can also be other mechanisms for converting the rotation into the linear motion. In this embodiment, the working principle of the screw-nut pair is as follows: the nut is rotated by a driving motor or other modes, so that the screw rod can directionally move up and down, in the embodiment, the end part of the screw rod is fixedly connected with the second clamping piece 4, and the second clamping piece 4 is driven to move up and down under the action of the screw rod; the tension member 5 may also be another driving mechanism to drive the second clamping member 4 to move up and down, which is not limited in this embodiment. Wherein, adopt the screw-nut pair as the power supply because: firstly, the vice mechanism of screw nut can realize ascending regulation of straight line direction, and in addition, the vice mechanism's of screw nut regulation still has the characteristics of fine setting, and swivel nut is many rings promptly, and the linear motion distance of the vice mechanism of screw nut is shorter, and consequently, it is comparatively suitable here to adopt the vice mechanism of screw nut, and in addition, in the measurement to the insulator 1 of disalignment, because the vice fine setting of screw nut can not destroy the structure of second joint spare 4, and then makes this measuring device more durable.

The measurement probe 6 is arranged on one side of the support frame 2 (the right side as viewed in figure 2) for measuring the distance between the first marker structure 321 and the second marker structure 4221. Specifically, the measuring probe 6 may be a laser three-dimensional measuring probe to perform laser scanning, for example, the first card element 3 and the second card element 4 may be scanned, and three-dimensional modeling of the first card element 3 and the second card element 4 may be performed according to a scanning result, which not only may measure a distance between the first identification structure 321 and the second identification structure 4221, but also may measure a distance from the first supporting surface 311 to the first identification structure 321 and a distance from the second supporting surface 4231 to the second identification structure 4221 before the insulator 1 is installed, and of course, the distance from the first supporting surface 311 to the first identification structure 321 and the distance from the second supporting surface 4231 to the second identification structure 4221 are fixed values, and may also be measured in other manners, which is not limited in this embodiment. The measuring probe 6 can be preferably a surface laser three-dimensional measuring probe, so as to improve the scanning measuring effect. Of course, the measuring probe 6 may also scan the insulator 1 that has been stably fixed, and then perform three-dimensional modeling on the insulator 1, so as to obtain parameter information of the insulator, such as structural parameters of disc diameter, axial deviation, radial deviation, creepage distance, and the like. In the present embodiment, the working principle of the measuring probe 6 is as follows: the scanning can be carried out for multiple times, the data obtained by scanning is transmitted to a terminal such as a computer, the three-dimensional model point cloud data of a scanned object can be obtained through data processing, then the three-dimensional model of the object is reversely reconstructed in the computer according to the point cloud data, and further required data such as structural parameters of creepage distance, measurement deviation and the like are obtained through measurement.

The data processing module 7 is connected to the measuring probe 6, and is configured to receive a distance between the first identification structure 321 and the second identification structure 4221 measured by the measuring probe 6, and calculate a structural height of the insulator 1 by combining a distance from the first supporting surface 311 to the first identification structure 321 and a distance from the second supporting surface 4231 to the second identification structure 4221. Specifically, the data processing module 7 is configured to receive and process data fed back by the measuring probe 6, such as the distance between the first identification structure 321 and the second identification structure 4221, so as to calculate the structural height of the insulator 1 based on the distance between the first identification structure 321 and the second identification structure 4221. In this embodiment, the data processing module 7 is further configured to respectively restore three-dimensional models of the first card member 3 and the second card member 4 based on scanning results performed on the first card member 3 and the second card member 4, measure a distance between the first identification structure 321 and the first supporting surface 311 based on the three-dimensional model of the first card member 3, measure a distance between the second identification structure 4221 and the second supporting surface 4231 based on the three-dimensional model of the second card member 4, and calculate a structural height of the insulator 1 by combining the distance between the first identification structure 321 and the second identification structure 4221. The data processing module 7 is further configured to perform three-dimensional modeling of the insulator based on the point cloud data to obtain a three-dimensional model of the insulator, and obtain structural parameters of the insulator, such as a creepage distance, a disc diameter, an axial deviation, a radial deviation, and coaxiality, based on the three-dimensional model of the insulator.

In this embodiment, when the insulator 1 is installed on the measuring device, the ball 11 of the insulator 1 is located above the cap pit 12, in the scanning process, especially, to the scanning of the insulator 1, the structure below the ball 11 of the insulator 1 is complex, if the ball 11 is located below the cap pit 12 in the scanning process, the scanning process is unclear due to the backlight reason, and further the derived three-dimensional model is distorted, and finally the measurement of the structural height of the insulator 1 is affected, so the ball 11 is clamped by the first clamping member 3 above the first clamping member, the cap pit 12 is clamped by the second clamping member 4 below the first clamping member, the ball 11 is located above the cap pit 12, and further the scanning definition through the measuring probe 6 is ensured.

If the first support surface 311 and the second support surface 4231 are inclined during the installation process during the measurement of the structural height of the insulator 1, all subsequent batch measurements will have errors, which obviously is not allowed. In order to improve the measurement accuracy, it is preferable that the bottom of the supporting frame 2 is provided with a leveling member 8 for adjusting the levelness of the first supporting surface 311 and the second supporting surface 4231, as shown in fig. 2. Specifically, the leveling member 8 is used for leveling the first supporting surface 311 and the second supporting surface 4231 so as to prevent deviation in a subsequent measuring process, the leveling member 8 is specifically an adjusting foot for adjusting levelness of the workbench 22, and when the levelness of the workbench 22 is relatively flat, the levelness of the first supporting surface 311 and the second supporting surface 4231 can be ensured.

In the present embodiment, as shown in fig. 2, a robot 9 is provided on one side of the support frame 2, and the measurement probe 6 is provided on the power output end of the robot 9 so that the measurement probe 6 is displaced along with the power output end of the robot 9. Specifically, the measurement probe 6 is displaceable along with the power output end of the manipulator 9 to scan the first and

second latches

3 and 4, and the distance between the first and

second identification structures

321 and 4221 is determined based on the result of the scanning. Wherein the manipulator 9 may be a six-axis manipulator.

With continued reference to fig. 4, in the present embodiment, the first clip 3 may include: a chuck plate 31 and a connecting post 32; the fixing plate 31 is disposed at an end (a bottom end as shown in fig. 4) of the connecting column 32 and connected to the connecting column 32. Specifically, the connecting column 32 and the clamping disc 31 may be fixedly connected, and the clamping groove of the first clamping member 3 may be disposed on the clamping disc 31, especially may be disposed at an end (e.g., a bottom end shown in fig. 4) of the clamping disc 31 far from the connecting column 32; in addition, the first identification structure 321 may be disposed on the connection post 32. In this embodiment, the end of the connecting column 32 far from the fastening disc 31 is fixedly connected to the cross beam 211, so as to support the first fastening member 3 and the fixing frame 21.

With continued reference to fig. 4, the second clip 4 includes: a cylinder 41 and a slide rod 42; one end (top end shown in fig. 4) of the sliding rod 42 is disposed outside the cylinder 41 and is provided with a buckle 423 for clamping the cap nest 12, and the other end (bottom end shown in fig. 4) is disposed inside the cylinder 41 and is in sealed sliding connection with the inner wall of the cylinder 41, so that the sliding rod 42 and the cylinder 41 can synchronously move up and down under the action of the tensioning member 5, that is, the buckle 423 moves up and down synchronously with the cylinder 41 as a second supporting surface 4231 facing the bottom surface of the cylinder 41 (relative to the position shown in fig. 4) until the second supporting surface 4231 abuts against the clamping surface of the cap nest 12, and after the second supporting surface 4231 abuts against the clamping surface of the cap nest 12, the sliding rod 42 and the cylinder 41 can relatively slide, so that the insulator 1 can be prevented from being subjected to hard tensioning. Specifically, the sliding rod 42 and the buckle 423 may be integrally formed, or may be connected in other manners, which is not limited in this embodiment. The bottom end of the sliding rod 42 can slide in the cylinder 41 in a sealing manner, the relationship between the sliding rod 42 and the cylinder 41 can refer to the connection relationship between the piston rod and the piston cylinder, the sliding rod 42 and the cylinder 41 move synchronously under the action of friction force of the sliding rod 42 and the cylinder 41 when the sliding rod 42 has no external force, and the cap socket 12 limits the sliding rod 42 when the sliding rod 42 has external force, for example, the second support surface 4231 abuts against the clamping surface of the cap socket 12, so that the sliding rod 42 and the cylinder 41 can slide relatively, namely, the sliding rod 42 is fixed vertically, and the cylinder 41 can move downwards under the action of tensile force. In this embodiment, the bottom end of the cylinder 41 can be connected to the power output end of the tension member 5, and after the insulator 1 is installed in place, the tension member 5 can pull the sliding rod 42 and the cylinder 41 to synchronously move downward until the second support surface 4231 abuts against the clamping surface of the cap socket 12, so that the insulator 1 is tensioned and clamped on the first clamping member 3 and the second clamping member 4; the tensioning element 5 continuously exerts a tensioning force on the cylinder 41, the cylinder 41 moves downwards relative to the tensioning element 5, in the process the slide rod 42 remains stationary and only the cylinder 41 moves downwards relative to the slide rod 42 under the action of the tensioning element 5. The arrangement of the cylinder 41 and the slide rod 42 can avoid rigid tensioning of the insulator 1, and certain damage to the insulator 1 cannot be caused in the parameter measurement process of the insulator 1, otherwise, the measured parameters of the insulator 1 are meaningless, so that the arrangement of the cylinder 41 and the slide rod 42 can avoid certain damage to the insulator 1 in the parameter measurement process of the insulator 1, and the accuracy of parameter measurement is ensured.

In order to timely obtain the time for tensioning the insulator 1 to be clamped on the first clamping member 3 and the second clamping member 4 by the tensioning force provided to the tensioning member 5, preferably, as shown in fig. 4, a scale mark 4222 is provided on the sliding rod 42 for displaying the position of the sliding rod 42 relative to the cylinder 41 to determine whether the sliding rod 42 slides relative to the cylinder 41, and further determine whether the clamping between the clamp 423 and the cap socket 12 is stable, i.e. whether the clamping surface 121 of the cap socket 12 is in pressing contact with the second supporting surface 4231. Specifically, the scale mark 4222 is arranged on the sliding rod 42, and by observing the change of the scale mark 4222, the clamping state of the insulator 1 can be known, when the insulator 1 is not clamped, because a sealed sliding mode is adopted between the sliding rod 42 and the cylinder 41, when the cylinder 41 is pulled by tensile force to move, the sliding rod 42 can move along with the cylinder 41 under the action of static friction force, at the moment, the scale does not change, when the second supporting surface 4231 on the sliding rod 42 is in contact with the cap pit 12 of the insulator 1 in a pressing mode, the sliding rod 42 slides relative to the cylinder 41, at the moment, the scale changes, namely, the scale relative to the top wall of the cylinder 41 changes, and therefore, the insulator 1 can be known to be in a stable clamping state, namely, a tensioning clamping state at the moment.

In the present embodiment, at the moment when the second support surface 4231 of the sliding rod 42 is in abutting contact with the cap cavity 12 of the insulator 1, the instantaneous tension impulse is sometimes relatively excessive, and the impulse may damage the inner surface of the cap cavity 12; to avoid damage to the insulator 1, it is preferable that, as shown in fig. 5, a buffer spring 44 is provided between an end portion of the slide rod 42 disposed inside the cylinder 41 (a bottom end as shown in fig. 5) and an open end of the cylinder 41 (a top end as shown in fig. 5). Specifically, a circular truncated cone 45 can be arranged at the bottom end of the sliding rod 42, a cover plate 46 is fixedly arranged at an opening of the cylinder 41, the sliding rod 42 can slidably penetrate through the cover plate 46, a buffer spring 44 is arranged between the circular truncated cone 45 and the cover plate 46, two ends of the buffer spring 44 are respectively connected with the circular truncated cone 45 and the cover plate 46, so that the buffer effect can be achieved by arranging the buffer spring 44, the sliding rod 42 is prevented from damaging the cap pit 12 of the insulator 1, in addition, the buffer spring 44 is arranged in the cylinder 41, the buffer effect can be achieved, and the measurement of the structural height of the insulator 1 cannot be affected. In the present embodiment, the cylinder 41 may be mounted on an adjusting plate 43 to support the cylinder 41, and the adjusting plate 43 is connected to a screw of a ball screw pair to move the cylinder 41 and the adjusting plate 43 up and down in synchronization.

The working of the device in this embodiment is described below:

according to the formula: the structural height of the insulator 1 is equal to a first distance, a second distance and a third distance; wherein, the first distance is a distance between the first indicating structure 321 and the second indicating structure 4221; the second distance is a distance between the first indicating structure 321 and the first supporting surface 311; the third distance is the distance between the second marker structure 4221 and the second support surface 4231; that is to say, the structural height of the insulator 1 is equal to the distance between the first marking structure 321 and the second marking structure 4221, the distance between the first marking structure 321 and the first supporting surface 311, and the distance between the second marking structure 4221 and the second supporting surface 4231, it can be known that the structural height of the insulator 1 needs to be obtained here, only three numerical values on the right side of the equal sign need to be known, and of the three numerical values, two subtraction numerical values are fixed and unchanged, that is, only the device is used to measure any insulator 1, and the numerical values are constant and unchanged, therefore, before measurement, only two subtraction numerical values need to be measured first, and the two numerical values are input into the data processing module 7, and in the subsequent measurement of the structural height of different insulators 1, the structural height of the insulator 1 can be obtained only by measuring the distance between the first marking structure 321 and the second marking structure 4221.

The measurement method for the two subtracted values is the same, and the measurement for one is described below, and the measurement for the other is referred to as the distance between the first marker structure 321 and the first supporting surface 311: the first card element 3 can be scanned by the surface laser three-dimensional measurement probe 6, the structure of the first card element 3 is modeled in three-dimensional software, and data analysis is performed by the three-dimensional software, so that the distance between the first marking structure 321 and the first supporting surface 311 can be calculated, and the distance from the second supporting surface 4231 to the second marking structure 4221 can also be calculated in this way.

After the distance between the first marking structure 321 and the first supporting surface 311 and the distance between the second marking structure 4221 and the second supporting surface 4231 are measured, a numerical value is led into the data processing module 7, in addition, a calculation formula of the structure height of the insulator 1 is also led into the data processing module 7, and then, the measurement of the structure height of the single insulator 1 is started, firstly, the foot ball 11 and the cap socket 12 of the insulator 1 are respectively installed in the clamping groove of the first clamping piece 3 and the clamping buckle 423 of the second clamping piece 4, then, the second clamping piece 4 is stretched through the lead screw nut pair to enable the cylinder 41 to move downwards until the second clamping piece 4 is tensioned to enable the insulator 1 to be completely tensioned and clamped on the first clamping piece 3 and the second clamping piece 4, then, the measurement measuring head 6 scans the first clamping piece 3, the second clamping piece 4 and the insulator 1, the distance between the first marking structure 321 and the second marking structure 4221 is obtained through data analysis, and the structure height of the insulator 1 is calculated through the formula.

Second device embodiment (especially for the case where the balls 11 and the sockets 12 of the insulator 1 are not coaxial):

this embodiment provides an insulator structure parameter measurement system based on three-dimensional scanning, includes: support frame 2, first joint spare 3, second joint spare 4, stretch-draw piece 5, measuring probe 6 and data processing module 7. The second embodiment is mainly different from the first embodiment in that the structure of the second clamping member 4 is different, and other structures, such as the supporting frame 2, the first clamping member 3, the second clamping member 4, the tensioning member 5, the measuring probe 6, the data processing module 7, and the like, are the same as those in the first apparatus embodiment, and may refer to each other, which is not described in detail in this embodiment.

As shown in fig. 6, the second clip 4 includes: a cylinder 41, a slide rod 42 and an adjusting plate 43; the connection relationship and structure between the cylinder 41 and the sliding rod 42 are the same as those of the first device embodiment, and they can be referred to each other, which is not described again in this embodiment; the main difference lies in the adjusting plate 43, and also relates to the connecting structure between the adjusting plate 43 and the cylinder 41.

As shown in fig. 6, the adjusting plate 43 is disposed on a side (below as shown in fig. 6) of the cylinder 41 facing away from the sliding rod 42, an adjusting slot is disposed on the adjusting plate 43, an end (bottom end as shown in fig. 6) of the cylinder 41 close to the adjusting plate 43 is provided with an adjusting plate 411, the adjusting plate 411 is embedded in the adjusting slot, and an adjusting redundant space is disposed between the adjusting plate 411 and the adjusting slot, so that the adjusting plate 411 can slide relative to the adjusting plate 43, and a horizontal position of the cylinder 41 is adjusted, so as to adjust a horizontal position of the sliding rod 42, and further adjust a horizontal position of the buckle 423.

Specifically, the structure of the sliding rod 42, the structure of the cylinder 41, and the connection manner between the sliding rod 42 and the cylinder 41 can all refer to the first embodiment, which is not limited in this embodiment; an adjusting groove is arranged on the adjusting plate 43; in this embodiment, the adjusting disc 411 may have a circular structure, the cylinder 41 may have a cylindrical structure, and the adjusting slot may have a hole structure with a small top and a large bottom; the tensioning member 5 can be connected with the adjusting plate 43, so that the cylinder 41 and the adjusting plate 43 can integrally and synchronously move up and down, the adjusting plate 43 is powered by the tensioning member 5, and the cylinder 41 is driven to move up and down. Wherein, the fine setting of ball screw pair can avoid destroying the adjustment tank.

With continued reference to fig. 6, the adjustment slot includes: an opening 431 and a locking part 432; wherein, the opening 431 is arranged on the wall surface (top wall shown in fig. 6) of the adjusting plate 42 facing the cylinder 41, the clamping part 432 is arranged in the adjusting plate 43, and the clamping part 432 is communicated with the opening 431; the opening part 431 and the clamping part 432 are coaxial circular holes, and the aperture of the opening part 431 is smaller than that of the clamping part 432; the hole diameter of the clamping portion 432 is larger than that of the adjusting disk 411, so that the adjusting disk 411 can be adjusted in position in the clamping portion 432. Specifically, opening 431 and joint portion 432 are the circular port and coaxial setting, the external diameter of adjustment disk 411 is greater than the aperture of opening 431, adjustment disk 411 external diameter is less than the aperture of joint portion 432, make opening 431 spacing adjustment disk 411, and adjustment disk 411 inlays and establishes in the inside of regulating plate 43 is joint portion 432 promptly, and, have certain redundancy volume along the horizontal direction between joint portion 432 and the adjustment disk 411 and form and adjust redundant space, have certain redundancy volume along the horizontal direction between cylinder 41 and the opening 431, can realize the regulation of adjustment disk 411 horizontal support position, and then realize the regulation of cylinder 41 horizontal position, thereby realize the regulation of the horizontal position of buckle 423, make buckle 423 and cap nest 12 can coaxial joint adaptation.

The working mode of the embodiment is described as follows:

the opening portion 431 and the clamping portion 432 are arranged to play a limiting role, so that the adjusting disc 411 can only move horizontally in the clamping portion 432 in all directions and cannot move up and down in the clamping portion 432, and therefore when the cap socket 12 and the foot ball 11 of the insulator 1 are not coaxial, the position of the sliding rod 42 can be adjusted artificially, and the buckle 423 of the sliding rod 42 can be clamped with the cap socket 12 of the insulator 1 in a coaxial adaptive manner.

Third device embodiment (especially for the case where the balls 11 and the sockets 12 of the insulator 1 are not coaxial):

in the second embodiment of the apparatus, although the technical problem of measuring the structural height of the insulator 1 (the ball 11 and the socket 12 are not coaxial) can be solved, the position of the sliding rod 42 is manually adjusted, so that the buckle 423 of the sliding rod 42 can be coaxially and adaptively clamped with the socket 12 of the insulator 1, which may make the process of detecting the structural height of the insulator 1 inefficient and unsuitable for batch measurement of the insulators 1, and therefore, the following embodiments are provided.

In this embodiment, a system for measuring structural parameters of an insulator based on three-dimensional scanning is provided, which includes: the support frame 2, first joint spare 3, second joint spare 4, tensioning piece 5, measuring probe 6 and data processing module 7. The third device embodiment is different from the first device embodiment in the structure of the sliding rod 42, and other structures, such as the supporting frame 2, the first clamping member 3, the second clamping member 4, the tensioning member 5, the measuring probe 6, and the data processing module 7, are the same as those in the first device embodiment and can be referred to each other, which is not described in detail in this embodiment.

As shown in fig. 7, the slide bar 42 includes: a guide portion 421, a connection portion 422, and a catch 423; wherein, the first end (bottom end as shown in fig. 7) of the connecting portion 422 is connected with the cylinder 41 in a sealing and sliding manner, and the scale mark 4222 and the second identification structure 4221 are both arranged on the connecting portion 422; one end (bottom end as shown in fig. 7) of the guide portion 421 is connected to the second end (top end as shown in fig. 7) of the connecting portion 422, and the catch 423 is provided at the other end (bottom end as shown in fig. 7) of the guide portion 421, and the guide portion 421 is used for guiding to automatically center when the connecting portion 422 slides with respect to the cylinder 21 so that the catch 423 is coaxial with the cap socket 12. Specifically, the guide portion 421, the connection portion 422, and the snap 423 may be fixedly connected by integral molding. The guide portion 421 may be an inverted conical rod, a large-diameter end (an upper end shown in fig. 7) of the inverted conical rod is connected to the buckle 423, and a small-diameter end (a lower end shown in fig. 7) of the inverted conical rod is connected to the second end of the connecting portion 422; the connecting portion 422 may be a round rod, or may have other structures, which is not limited in this embodiment.

The operation of the guide 421 of the present embodiment is described as follows: the slide rod 42 is provided with an inverted conical rod as the guide part 421, the bottom of the cap socket 12 of the insulator 1 is provided with a cylindrical hole, and in the downward movement process of the slide rod 42, due to the existence of the conical rod, the cross section of the guide part 421 arranged at the cylindrical hole is gradually increased in the downward movement process of the slide rod 42, the guide part 421 and the cylindrical hole can be automatically centered, namely when the foot ball 11 of the insulator 1 and the cap socket 12 are not coaxial, the guide part 421 is stressed to generate inclined deformation or slightly inclined deformation, so that the buckle 423 is coaxially arranged in the cap socket 12, namely, the automatic centering of the buckle 423 and the cap socket 12 is realized, and thus, the process of manually adjusting the slide rod 42 can be omitted.

In summary, the insulator structure parameter measurement system based on three-dimensional scanning provided by this embodiment is clamped with the ball 11 of the insulator 1 through the first clamping member 3; the second clamping piece 4 is clamped with the cap nest 12 of the insulator 1, and the second clamping piece 4 is connected with the support frame 2 in a mode of moving up and down along the vertical direction, so that the insulator 1 is tensioned and clamped on the first clamping piece 3 and the second clamping piece 4; scanning the tensioned and clamped insulator 1 and the first identification structure 321 and the second identification structure 4221 in the state at the moment by using the measuring probe 6 to obtain the distance between the first identification structure 321 and the second identification structure 4221; based on the first identification structure 321 and the second identification structure 4221, the data processing module 7 calculates the structural height of the insulator 1 by combining the distance between the first identification structure 321 and the first supporting surface 311 and the distance between the second identification structure 4221 and the second supporting surface 4231, so that the informatization and the intellectualization of the measuring device are improved, and the technical problem that the structural height of the insulator 1 is difficult to measure is solved. The measuring device also has the following advantages: the measurement precision of the measuring device can reach 0.01mm, the average measurement time of a single piece can be shortened to 1 minute from 10 minutes, and the labor cost for measuring each parameter can be reduced to 1 person from 6 persons; meanwhile, the measuring device has the characteristics of small occupied space, high scanning efficiency, strong operation reliability, high informatization degree and the like, is particularly suitable for multiple manufacturing enterprises to measure the structural parameters of finished products and semi-finished products, further promotes the enterprises to carry out quality analysis and production strategy optimization, and detects the structural parameters of products finished by multiple inspection, storage and distribution integrated bases, third-party detection units and scientific research institutions, thereby realizing the intelligentization and informatization improvement of laboratories.

The method comprises the following steps:

referring to fig. 8, it is a block flow diagram of a method for measuring insulator structure parameters based on three-dimensional scanning according to an embodiment of the present invention. As shown in fig. 8, the measurement method can use the insulator structure parameter measurement system based on three-dimensional scanning to perform measurement, and includes the following steps:

and S1, mounting the insulator to enable the insulator to be abutted between the first clamping piece and the second clamping piece.

Specifically, firstly, the insulator 1 is installed on the first clamping piece 3 and the second clamping piece 4, the ball 11 of the insulator 1 can be clamped and fixed in the clamping groove of the first clamping piece 3, and the cap nest 12 is clamped and arranged on the buckle 423 of the second clamping piece 4, at this time, a certain amount of up-and-down movement redundancy exists between the cap nest 12 and the buckle 423; then, start tensioning member 5, stretch-draw second joint spare 4 through tensioning member 5, and then make second joint spare 4 move downwards under the effect of tensioning member 5, until joint face 121 of cap nest 12 supports to press contact with second joint spare 4's second holding surface 4231, or, slide bar 42 slides relatively cylinder 41, and at this moment, the scale mark relative with cylinder 41 roof changes for insulator 1 tensioning card is fixed on first joint spare 3 and second joint spare 4, accomplishes the fixed mounting of insulator 1.

And S2, scanning the first clamping piece and the second clamping piece to obtain a first distance, wherein the first distance is the distance between a first identification structure of the first clamping piece and a second identification structure of the second clamping piece.

Specifically, the first card device and the second card device can be scanned respectively, an integral three-dimensional model between the first card device and the second card device is restored based on the scanning result, and the distance between a first identification structure and a second identification structure in the integral three-dimensional model is measured; the scanning of the first card member 3 and the second card member 4 can be performed by a measuring probe 6, for example, a surface laser three-dimensional measuring probe, to scan the first card member 3 and the second card member 4 for multiple times, the scanning result can be restored by the data processing module 7 to an integral three-dimensional model between the first card member 3 and the second card member 4, the distance between the first marking structure 321 and the second marking structure 4221 in the integral three-dimensional model is measured in the three-dimensional software, and the distance, that is, the distance between the first marking structure 321 and the second marking structure 4221 is stored in the data processing module 7. Meanwhile, the insulator 1 can be scanned for multiple times by the measuring probe 6, so that not only is the three-dimensional model of the insulator 1 restored, namely the three-dimensional model of the insulator 1 contained in the whole three-dimensional model, but also the parameter information of the insulator 1 can be measured, and the three-dimensional scanning of the insulator is realized.

S3, calculating the structural height of the insulator according to the fact that the structural height of the insulator is equal to the first distance, the second distance and the third distance; the second distance is the distance between the first marking structure and the first supporting surface of the first clamping piece, and the third distance is the distance between the second marking structure and the second supporting surface of the second clamping piece.

Specifically, the structural height of the insulator is calculated according to the fact that the structural height of the insulator is equal to a first distance, a second distance and a third distance; the second distance is the distance between the first marking structure and the first supporting surface of the first clamping piece, and the third distance is the distance between the second marking structure and the second supporting surface of the second clamping piece; in this embodiment, the data processing module 7 calculates the structural height of the insulator 1 based on the second distance, i.e. the distance between the first indicating structure 321 and the first supporting surface 311, the third distance, i.e. the distance between the second indicating structure 4221 and the second supporting surface 4231, and the first distance, i.e. the distance between the first indicating structure 321 and the second indicating structure 4221, which are stored inside; wherein, the calculation formula can be: the structural height of the insulator is equal to the first distance, the second distance and the third distance, and the structural height of the insulator is calculated, that is, the structural height of the insulator 1 is equal to the distance between the first marking structure 321 and the second marking structure 4221, the distance between the first marking structure 321 and the first supporting surface 311, and the distance between the second marking structure 4221 and the second supporting surface 4231, so that the calculation of the structural height of the insulator 1 is completed.

And after the structural parameters of the single insulator are calculated, the steps S1-S3 can be repeatedly executed, and the batch measurement of the structural height of the insulator 1 is realized.

Referring to fig. 9, it is a further flowchart of the method for measuring insulator structure parameters based on three-dimensional scanning according to the embodiment of the present invention. As shown in fig. 9, the measurement method can use the three-dimensional scanning-based insulator structure parameter measurement system to perform measurement, and includes the following steps:

and S4, acquiring a second distance and a third distance.

Specifically, the first card member 3 may be scanned for multiple times by the measuring probe 6, the three-dimensional model of the first card member 3 may be restored by the data processing module 7 based on the scanning result to be used as the three-dimensional model of the first card member, the distance between the first identification structure 321 and the first supporting surface 311 in the three-dimensional model of the first card member is measured in the three-dimensional software to be used as the second distance, and the distance is stored in the data processing module 7, so as to realize the storage of the distance between the first identification structure 321 and the first supporting surface 311 in the data processing module 7, so as to calculate the structure height in the subsequent step three S3; of course, the distance between the first identification structure 321 and the first supporting surface 311 may also be determined by other methods, which is not limited in this embodiment; the second card member 4 can also be scanned for multiple times by the measuring probe 6, the three-dimensional model of the second card member 4 is restored by the data processing module 7 based on the scanning result to be used as the three-dimensional model of the second card member, the distance between the second marking structure 4221 and the second supporting surface 4231 in the three-dimensional model of the second card member is measured in the three-dimensional software to be used as the third distance, and the third distance, that is, the distance between the second marking structure 4221 and the second supporting surface 4231 is stored in the data processing module 7, so that the storage of the distance between the second marking structure 4221 and the second supporting surface 4231 in the data processing module 7 is realized, and the calculation of the structure height is performed in the subsequent step three S3. Of course, the distance between the second indicating structure 4221 and the second supporting surface 4231 may be determined by other methods, which is not limited in this embodiment.

And S2, scanning the first clamping piece and the second clamping piece to acquire a first distance, wherein the first distance is the distance between a first identification structure of the first clamping piece and a second identification structure of the second clamping piece.

Referring to fig. 10, it is a further flowchart of the method for measuring insulator structural parameters based on three-dimensional scanning according to the embodiment of the present invention. As shown in fig. 10, the measurement method can use the three-dimensional scanning-based insulator structure parameter measurement system to perform measurement, and includes the following steps:

and S4, acquiring a second distance and a third distance.

And S5, scanning the insulator to acquire point cloud data of the insulator.

Specifically, the insulator 1 can be scanned for multiple times by the measuring probe 6, and point cloud data of the insulator can be obtained through data processing.

And S6, performing three-dimensional modeling on the insulator based on the point cloud data to obtain a three-dimensional model of the insulator, and acquiring the creepage distance of the insulator based on the three-dimensional model of the insulator.

Specifically, the three-dimensional modeling of the insulator 1 can be performed through the data processing module 7 based on the point cloud data to obtain a three-dimensional model of the insulator 1, and structural parameters such as a creepage distance, a disc diameter, an axial deviation and a radial deviation of the insulator 1 are obtained based on the three-dimensional model of the insulator.

In summary, the method for measuring the structural parameters of the insulator based on three-dimensional scanning provided by the embodiment is clamped with the ball 11 of the insulator 1 through the first clamping piece 3; the second clamping piece 4 is clamped with the cap nest 12 of the insulator 1, and the second clamping piece 4 is connected with the support frame 2 in a mode of moving up and down along the vertical direction; the tensioning piece 5 provides power for the up-and-down movement of the second clamping piece 4, so that the insulator 1 is tensioned and clamped on the first clamping piece 3 and the second clamping piece 4; scanning the tensioned and clamped insulator 1 and the first identification structure 321 and the second identification structure 4221 in the current state by using the measuring probe 6 to obtain the distance between the first identification structure 321 and the second identification structure 4221; the data processing module 7 calculates the structural height of the insulator 1 based on the first identification structure 321 and the second identification structure 4221 by combining the distance between the first identification structure 321 and the first supporting surface 311 and the distance between the second identification structure 4221 and the second supporting surface 4231, so as to solve the technical problem that the structural height of the insulator 1 is difficult to measure.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides an insulator structure parameter measurement system based on three-dimensional scanning which characterized in that includes:

a support frame;

the first clamping piece is arranged on the support frame and used for clamping a foot ball of the insulator so that a clamping surface of the foot ball is in abutting contact with a first supporting surface of the first clamping piece; the outer wall of the first clamping piece is provided with a first identification structure for identifying the position of the first clamping piece;

the second clamping piece is positioned below the first clamping piece and is connected with the supporting frame in a mode of moving up and down along the vertical direction, the second clamping piece and the first clamping piece are arranged at intervals, and the second clamping piece is used for clamping a cap nest of an insulator so that a clamping surface of the cap nest is in abutting contact with a second supporting surface of the second clamping piece, and the insulator is installed between the second clamping piece and the first clamping piece; the outer wall of the second clamping piece is provided with a second identification structure for identifying the position of the second clamping piece;

the measuring probe is arranged on one side of the supporting frame and is used for measuring the distance between the first identification structure and the second identification structure;

the data processing module is connected with the measuring probe and is used for receiving the distance between the first identification structure and the second identification structure measured by the measuring probe and calculating the structural height of the insulator by combining the distance between the first supporting surface and the first identification structure and the distance between the second supporting surface and the second identification structure based on the distance between the first identification structure and the second identification structure;

the second clip includes:

a cylinder barrel;

one end of the sliding rod is arranged outside the cylinder barrel and provided with a buckle for clamping the cap nest, the other end of the sliding rod is arranged inside the cylinder barrel and connected with the inner wall of the cylinder barrel in a sealing and sliding mode, so that the second supporting surface and the cylinder barrel move up and down synchronously until the second supporting surface abuts against the clamping surface of the cap nest, and the sliding rod and the cylinder barrel can slide relatively after the second supporting surface abuts against the clamping surface of the cap nest; the buckle faces the bottom surface of the cylinder barrel and serves as a second supporting surface.

2. The insulator structure parameter measurement system based on three-dimensional scanning of claim 1,

the sliding rod is provided with scale marks, at least part of the scale marks are located outside the cylinder barrel and used for displaying the position of the sliding rod relative to the cylinder barrel so as to determine whether the sliding rod slides relative to the cylinder barrel.

3. The three-dimensional scanning based insulator structure parameter measuring system according to claim 2, wherein the slide bar comprises:

the first end of the connecting part is connected with the cylinder barrel in a sealing and sliding mode, and the scale mark and the second identification structure are arranged on the connecting part;

one end of the guide part is connected with the second end of the connecting part, and the buckle is arranged at the other end of the guide part and used for guiding when the connecting part slides so as to realize automatic centering between the buckle and the cap pit.

4. The three-dimensional scanning-based insulator structure parameter measuring system according to claim 3,

the guide part is an inverted conical rod, the large-diameter end of the inverted conical rod is connected with the buckle, and the small-diameter end of the inverted conical rod is connected with the second end of the connecting part;

the connecting part is a round rod.

5. The insulator structure parameter measurement system based on three-dimensional scanning of claim 1,

an adjusting plate is arranged on one side, back to the sliding rod, of the cylinder barrel, and an adjusting groove is formed in the adjusting plate;

the adjusting plate is embedded in the adjusting groove, and an adjusting redundant space is arranged between the adjusting plate and the adjusting groove and used for adjusting the horizontal position of the cylinder barrel so as to adjust the horizontal position of the buckle at the end part of the sliding rod.

6. The three-dimensional scanning based insulator structure parameter measuring system according to claim 5, wherein the adjusting groove comprises: an opening part and a clamping part; wherein, the first and the second end of the pipe are connected with each other,

the opening part is arranged on the wall surface of the adjusting plate facing the cylinder barrel, the clamping part is arranged in the adjusting plate, and the clamping part is communicated with the opening part;

the opening part and the clamping part are coaxial circular holes, and the aperture of the opening part is smaller than that of the clamping part, so that the end part of the cylinder barrel extends into the clamping part from the opening part and limits the adjusting disc;

the aperture of joint portion is greater than the aperture of adjustment disk to make the adjustment disk can carry out position control in the joint portion, realize the regulation of cylinder horizontal position.

7. The insulator structure parameter measurement system based on three-dimensional scanning of claim 1,

and a buffer spring is arranged between the end part of the sliding rod arranged in the cylinder barrel and the opening end of the cylinder barrel.

8. The three-dimensional scanning-based insulator structure parameter measurement system according to any one of claims 1 to 7, further comprising:

and the tensioning piece is connected with the second clamping piece and used for applying tensioning force to the second clamping piece so as to enable the second clamping piece to move up and down, and the insulator is tensioned and clamped on the first clamping piece and the second clamping piece.

9. The three-dimensional scanning based insulator structure parameter measuring system according to claim 8, wherein the tension member is a ball screw mechanism, and the ball screw mechanism comprises: the screw rod and a nut in threaded connection with the screw rod; wherein the content of the first and second substances,

the nut is connected with a driving piece and used for driving the nut to rotate;

and the power output end of the screw rod is connected with the second clamping piece and is used for driving the second clamping piece to perform linear motion in the vertical direction when the nut rotates.

10. The three-dimensional scanning-based insulator structure parameter measurement system according to any one of claims 1 to 7,

and one side of the support frame is provided with a mechanical arm, and the measuring probe is arranged at the power output end of the mechanical arm and is used for moving along with the power output end of the mechanical arm.

11. The three-dimensional scanning-based insulator structure parameter measurement system according to any one of claims 1 to 7,

the bottom of support frame is equipped with leveling member for adjust the levelness of first holding surface with the second holding surface.

12. The three-dimensional scanning-based insulator structure parameter measurement system according to any one of claims 1 to 7,

the measuring probe is also used for respectively scanning the first clamping piece and the second clamping piece and sending the scanning result to the data processing module;

the data processing module is further used for respectively restoring the three-dimensional models of the first clamping piece and the second clamping piece based on the scanning result, measuring the distance between the first identification structure and the first supporting surface based on the three-dimensional model of the first clamping piece, and measuring the distance between the second identification structure and the second supporting surface based on the three-dimensional model of the second clamping piece.

13. The three-dimensional scanning-based insulator structure parameter measurement system according to any one of claims 1 to 7,

the measuring probe is also used for scanning the insulator to obtain point cloud data of the insulator and sending the point cloud data to the data processing module;

the data processing module is further used for performing three-dimensional modeling on the insulator based on the point cloud data to obtain a three-dimensional model of the insulator, and acquiring the creepage distance of the insulator based on the three-dimensional model of the insulator.

14. An insulator structure parameter measuring method based on three-dimensional scanning, which is characterized in that the insulator structure parameter measuring system based on three-dimensional scanning according to any one of claims 1 to 13 is adopted to measure the insulator structure parameters, and the method comprises the following steps:

mounting an insulator to enable the insulator to be abutted between the first clamping piece and the second clamping piece;

scanning a first clamping piece and a second clamping piece to obtain a first distance, wherein the first distance is the distance between a first identification structure of the first clamping piece and a second identification structure of the second clamping piece;

calculating the structural height of the insulator according to the fact that the structural height of the insulator is equal to the first distance, the second distance and the third distance; the second distance is the distance between the first marking structure and the first supporting surface of the first clamping piece, and the third distance is the distance between the second marking structure and the second supporting surface of the second clamping piece.

15. The method for measuring the structural parameters of the insulator based on the three-dimensional scanning as claimed in claim 14, wherein before the step of calculating the structural height of the insulator according to the structural height of the insulator being equal to the first distance, the second distance and the third distance, the method further comprises the following steps:

and acquiring the second distance and the third distance.

16. The method for measuring the structural parameters of the insulator based on the three-dimensional scanning as claimed in claim 14 or 15, wherein after the insulator is installed and the insulator is abutted between the first clamping piece and the second clamping piece, the method further comprises the following steps:

scanning an insulator to obtain point cloud data of the insulator;

and performing three-dimensional modeling on the insulator based on the point cloud data to obtain a three-dimensional model of the insulator, and acquiring the creepage distance of the insulator based on the three-dimensional model of the insulator.