阅读说明：本技术 特征同步反向运动的汽车形貌检测系统畸变系数测量仪 (Characteristic synchronous reverse motion automobile morphology detection system distortion coefficient measuring instrument ) 是由 徐观 沈慧 张立斌 刘玉梅 戴建国 单红梅 林慧英 陈熔 李晓韬 贺微 王丽娟 于 2021-08-27 设计创作，主要内容包括：本发明公开了一种特征同步反向运动的汽车形貌检测系统畸变系数测量仪,旨在解决同步反向运动的汽车形貌检测系统畸变系数测量问题。特征同步反向运动的汽车形貌检测系统畸变系数测量仪主要由立柱(1)、钢丝(2)、短柱(3)、带孔齿条(4)、电机(5)、支撑座(6)、轴承(7)、齿轮(8)、导轨(9)与顶丝(10)组成。导轨(9)放置在水平地面上,两根带孔齿条(4)放置在导轨(9)的矩形凹槽内与导轨(9)滑动配合,一个齿轮(8)的内表面与电机(5)的输出轴通过键连接配合,该齿轮(8)与上方的带孔齿条(4)啮合且与下方的齿轮(8)啮合。提供了一种性能可靠的特征同步反向运动的汽车形貌检测系统畸变系数测量仪。(The invention discloses a characteristic synchronous reverse motion automobile morphology detection system distortion coefficient measuring instrument, and aims to solve the problem of synchronous reverse motion automobile morphology detection system distortion coefficient measurement. The characteristic synchronous and reverse movement automobile morphology detection system distortion coefficient measuring instrument mainly comprises an upright post (1), a steel wire (2), a short column (3), a rack with holes (4), a motor (5), a supporting seat (6), a bearing (7), a gear (8), a guide rail (9) and a jackscrew (10). The guide rail (9) is placed on the horizontal ground, the two perforated racks (4) are placed in the rectangular grooves of the guide rail (9) and are in sliding fit with the guide rail (9), the inner surface of one gear (8) is in key connection fit with the output shaft of the motor (5), and the gear (8) is meshed with the perforated rack (4) above and is meshed with the gear (8) below. The characteristic synchronous reverse motion distortion coefficient measuring instrument for the automobile morphology detection system is reliable in performance.)

1. The characteristic synchronous and reverse motion automobile morphology detection system distortion coefficient measuring instrument is characterized by comprising an upright post (1), a steel wire (2), a short post (3), a toothed rack (4) with holes, a motor (5), a supporting seat (6), a bearing (7), a gear (8), a guide rail (9) and a jackscrew (10);

two upright posts (1) are placed on a horizontal ground, cylindrical surfaces of four short posts (3) are respectively in interference fit with the inner surfaces of through holes of the two upright posts (1), a guide rail (9) is placed on the horizontal ground, two racks with holes (4) are placed in a rectangular groove of the guide rail (9) and are in sliding fit with the guide rail (9), two steel wires (2) respectively penetrate through the through holes of the two racks with holes (4) and the through holes of the guide rail (9), two ends of the steel wire (2) are contacted with end face round holes of the short posts (3), four jackscrews (10) are respectively in threaded connection with cylindrical threaded holes of the four short posts (3), the end faces of the four jackscrews (10) are tightly contacted with the steel wires (2) in the round holes, bolts penetrate through round through holes of steel plates on the side faces of a support seat (6) and are fixedly connected with the upright posts (1) in a threaded manner, the motor (5) is arranged above the support seat (6), and the bolts penetrate through round holes at the bottom of the motor (5) and are in a threaded connection with the support seat (6), the inner surface of one gear (8) is in key connection fit with the output shaft of the motor (5), the gear (8) is meshed with the perforated rack (4) above and meshed with the gear (8) below, the gear (8) below is meshed with the perforated rack (4) below, the gear (8) below is in small interference fit with the outer ring of the bearing (7), and the inner ring of the bearing (7) is in small interference fit with the upper circular shaft of the supporting seat (6).

2. The instrument for measuring the distortion coefficient of the automobile morphology detection system with synchronous and reverse motion according to the claim 1, characterized in that the upright column (1) is made of a rectangular steel plate, two through holes are processed on the upper and lower side surfaces, and two threaded holes are processed in the middle part.

3. The instrument for measuring the distortion coefficient of the automobile morphology detection system with synchronous and reverse motion according to the characteristics of claim 1, characterized in that a key groove is processed at the shaft end of an output shaft of the motor (5), and four round holes are processed at the bottom.

4. The apparatus for measuring the distortion coefficient of a vehicle appearance detecting system with synchronous and reverse movement according to the claim 1, wherein the short column (3) is made of cylindrical steel, a round hole is processed at the center of the end face, and a threaded hole is processed at the side face.

5. The instrument for measuring the distortion coefficient of an automobile morphology detection system synchronously moving in reverse direction according to the characteristics of claim 1, characterized in that the toothed rack (4) with holes is a steel rack with a round through hole on the side surface.

6. The apparatus for measuring the distortion coefficient of the automobile morphology detection system moving synchronously and reversely according to the characteristics of claim 1, characterized in that the supporting seat (6) is an L-shaped part formed by welding rectangular steel plates, the upper steel plate is provided with four threaded holes, the side steel plate is provided with a steel round shaft and is provided with two round through holes.

7. The apparatus for measuring the distortion coefficient of a vehicle appearance detecting system synchronously moving in opposite directions according to the characteristics of claim 1, wherein the guide rail (9) is a steel cuboid part, a rectangular groove is formed on the surface of the steel cuboid part, and a long through hole is formed on the side surface of the steel cuboid part.

8. The apparatus for measuring distortion coefficient of automobile topographic detecting system with synchronous and reverse movement as claimed in claim 1, wherein the jackscrew (10) is a standard screw.

Technical Field

The invention relates to a calibrating device of a detection device in the field of automobile industry, in particular to a characteristic synchronous reverse motion distortion coefficient measuring instrument of an automobile morphology detection system.

Background

In recent years, with the rapid development of the automobile industry in China, the related technology in the field of automobile industry detection is greatly improved, wherein an automobile morphology detection system is a commonly used measurement system, but some common errors are found in the gradual development process of the automobile morphology detection system, and the distortion of a camera lens is an error source which is harmful to the automobile morphology detection system. The nonlinear distortion of the camera can make the image characteristic points collected by the camera deviate from the real pixel points, so that the target contour reconstructed by the system is deformed, and the detection error is increased. The method for solving the distortion through image processing is complex, so that the design of the automobile morphology detection system distortion coefficient measuring instrument with synchronous and reverse movement of characteristics is very important. The technology has great significance for further development of the field of automobile industrial detection.

Disclosure of Invention

Aiming at the current situation that the distortion coefficient of an automobile morphology detection system is difficult to measure at present, the invention designs the distortion coefficient measuring device of the automobile morphology detection system, which has the advantages of lower cost, simple structure, convenient operation and reliable performance. The characteristic synchronous and reverse motion automobile feature detection system distortion coefficient measuring instrument controls the gear to rotate through the motor, and pushes the upper rack and the lower rack to move up and down along the guide rail synchronously to change the shape of the steel wire, so that quantitative measurement of the distortion coefficient in the automobile feature detection system is realized. The accuracy of the measurement result of the automobile morphology detection system is further enhanced.

Referring to fig. 1 to 8, to solve the above technical problem, the present invention is implemented by the following technical solutions. The characteristic synchronous and reverse motion automobile feature detection system distortion coefficient measuring instrument provided by the invention comprises a stand column, a steel wire, a short column, a rack with a hole, a motor, a supporting seat, a bearing, a gear, a guide rail and a jackscrew.

Two upright posts are placed on the horizontal ground. The four cylindrical surfaces of the short columns are in interference fit with the inner surfaces of the through holes of the two upright columns respectively. The guide rail is placed on a horizontal ground. Two racks with holes are placed in the rectangular groove of the guide rail and are in sliding fit with the guide rail, two steel wires respectively penetrate through the through holes of the two racks with holes and the through hole of the guide rail, and two ends of each steel wire are in contact with the end face round holes of the short columns. The four jackscrews are respectively in threaded connection with the cylindrical threaded holes of the four short columns, and the end faces of the four jackscrews are in close contact with the steel wires in the round holes. The bolt penetrates through the circular through hole of the steel plate on the side surface of the supporting seat and is fixedly connected with the upright post through threads. The motor is arranged above the supporting seat, and the bolt penetrates through a round hole in the bottom of the motor to be in threaded connection with the supporting seat. The inner surface of a gear is in key connection fit with an output shaft of the motor, and the gear is meshed with the upper rack with the hole and the lower gear. The gear below is meshed with the toothed rack with the hole below, the gear below is in small interference fit with the outer ring of the bearing, and the inner ring of the bearing is in small interference fit with the circular shaft on the supporting seat.

The upright post in the technical scheme is made of a rectangular steel plate, two through holes are processed on the upper side and the lower side of the side face of the upright post, and two threaded holes are processed in the middle of the upright post.

The short column in the technical scheme is made of cylindrical steel, a round hole is processed in the center of the end face, and a threaded hole is processed in the side face.

The toothed rack with holes in the technical scheme is a steel rack with a round through hole machined in the side face.

In the technical scheme, a key groove is machined at the shaft end of an output shaft of the motor, and four round holes are machined at the bottom of the output shaft.

The supporting seat in the technical scheme is an L-shaped part formed by welding rectangular steel plates, four threaded holes are formed in the upper side steel plate in a machining mode, and a steel round shaft is welded to the side steel plate and two round through holes are formed in the side steel plate in a machining mode.

The guide rail in the technical scheme is a steel cuboid part, a rectangular groove is machined on the surface of the steel cuboid part, and a long through hole is machined on the side face of the steel cuboid part.

The jackscrew in the technical scheme is a standard screw.

The invention has the beneficial effects that:

(1) according to the invention, the gear 8 is controlled to rotate by the motor 5, the perforated rack 4 is pushed to move up and down to change the deformation degree of the steel wire 2 quantitatively, and the nonlinear distortion value of the camera lens in the automobile morphology detection system can be measured by calculating the distance change of the steel wire 2, so that the defects of complexity, long time consumption and the like of an image processing model in the traditional distortion value measurement method are avoided.

(2) The deformation of the steel wire 2 is realized through bidirectional gear and rack synchronous transmission, firstly, the steel wire is used as an important auxiliary device of detection equipment, the gear and rack transmission has the characteristics of long service life, stable work, high reliability and the like, and the stable transmission ratio can be maintained in long-term use so as to ensure the precision of a detection system; secondly, this measuring device simple structure, convenient operation.

(3) The main parts of the invention are all processed by standard section steel materials, the yield of the standard section steel is large, the mechanical processing procedures are few, and the production cost is low, thereby reducing the manufacturing cost of the measuring device.

Drawings

FIG. 1 is an isometric view of an instrument for measuring distortion coefficients of an automotive topography detection system with synchronized reverse motion of features;

FIG. 2 is an isometric view of a column 1 in an instrument for measuring distortion coefficients of an automobile topography detection system with synchronous and reverse movement of features;

FIG. 3 is an isometric view of a wire 2 in the distortion coefficient measuring apparatus of the automotive topography detection system with synchronized reverse motion of features;

FIG. 4 is an isometric view of a short column 3 in a distortion coefficient measuring instrument of an automobile morphology detection system with synchronous and reverse movement of features;

FIG. 5 is an isometric view of a perforated rack 4 in an instrument for measuring the distortion coefficient of an automobile topography detection system with synchronized reverse movement of features;

FIG. 6 is an isometric view of a point motor 5 in the distortion coefficient measuring apparatus of the automotive topography detection system with synchronized reverse motion of features;

FIG. 7 is an isometric view of a support pedestal 6 in the instrument for measuring distortion coefficients of an automotive topography detection system with synchronized reverse motion of features;

FIG. 8 is an isometric view of the guide rail 9 in the instrument for measuring the distortion coefficient of an automotive topography detection system with synchronized reverse motion of features;

in the figure: 1. the steel wire support comprises a vertical column, 2 steel wires, 3 short columns, 4 perforated racks, 5 motors, 6 supporting seats, 7 bearings, 8 gears, 9 guide rails and 10 jackscrews.

Detailed Description

The invention is described in further detail below with reference to the attached drawing figures:

referring to fig. 1 to 8, the characteristic synchronous and reverse motion distortion coefficient measuring instrument of the automobile morphology detection system comprises a stand column 1, a steel wire 2, a short column 3, a rack with holes 4, a motor 5, a support seat 6, a bearing 7, a gear 8, a guide rail 9 and a jackscrew 10.

The stand 1 is made by the rectangle steel sheet, and the side processing has two through-holes from top to bottom, and the middle part processing has two screw holes, and two stands 1 are placed on the level ground. The short columns 3 are made of cylindrical steel, a round hole is processed in the center of the end face, threaded holes are processed in the side face, and the cylindrical surfaces of the four short columns 3 are in interference fit with the inner surfaces of the through holes of the two stand columns 1 respectively. The guide rail 9 is a steel cuboid part, a rectangular groove is formed in the surface of the steel cuboid part, a long through hole is formed in the side face of the steel cuboid part, and the guide rail 9 is placed on the horizontal ground. The rack 4 with the hole is a steel rack with a round through hole on the side. Two perforated racks 4 are placed in the rectangular groove of the guide rail 9 and are in sliding fit with the guide rail 9, two steel wires 2 respectively penetrate through holes of the two perforated racks 4 and through holes of the guide rail 9, and two ends of each steel wire 2 are in contact with the end face round holes of the short columns 3. The jackscrews 10 are standard screws, the four jackscrews 10 are respectively in threaded connection with the cylindrical threaded holes of the four short columns 3, and the end faces of the four jackscrews 10 are in close contact with the steel wires 2 in the round holes. The supporting seat 6 is an L-shaped part formed by welding rectangular steel plates, four threaded holes are formed in the upper side steel plate in a machining mode, and a steel round shaft is welded to the side steel plate and 2 round through holes are formed in the side steel plate in a machining mode. The bolt passes through a circular through hole of a steel plate on the side surface of the supporting seat 6 and is fixedly connected with the upright post 1 through threads. The shaft end of the output shaft of the motor 5 is provided with a key groove, and the bottom of the output shaft is provided with four round holes. The motor 5 is arranged above the supporting seat 6, and the bolt penetrates through a round hole in the bottom of the motor 5 to be in threaded connection with the supporting seat 6. The inner surface of a gear 8 is in key connection with the output shaft of the motor 5, and the gear 8 is meshed with the upper perforated rack 4 and the lower gear 8. The gear 8 below is meshed with the rack 4 with the hole below, the gear 8 below is in small interference fit with the outer ring of the bearing 7, and the inner ring of the bearing 7 is in small interference fit with the circular shaft on the supporting seat 6.

The use method of the automobile morphology detection system distortion coefficient measuring instrument with synchronous and reverse movement of characteristics comprises the following steps:

the characteristic synchronous reverse motion automobile morphology detection system distortion coefficient measuring instrument is placed on the front face of an automobile morphology measurement system camera, a bidirectional gear rack is driven by a control motor 5 to synchronously transmit and change images of a steel wire 2 welded on an upright post 1 and collected by the camera, the number of rotation turns of a gear 8 is recorded, the longitudinal displacement of the two perforated racks 4 in reverse motion is calculated, and the distortion coefficient of the camera in the automobile morphology measurement system is obtained according to the displacement.