CN110231009B

CN110231009B - Automatic detection device and method for position degree of wheel bolt hole

Info

Publication number: CN110231009B
Application number: CN201910490311.3A
Authority: CN
Inventors: 薛博文; 翁涛; 郭勇; 郭建东
Original assignee: CITIC Dicastal Co Ltd
Current assignee: CITIC Dicastal Co Ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2024-04-12
Anticipated expiration: 2039-06-06
Also published as: CN110231009A

Abstract

The invention relates to the technical field of detection equipment in machining, in particular to an automatic detection device and method for the position degree of a wheel bolt hole.

Description

Automatic detection device and method for position degree of wheel bolt hole

Technical Field

The application relates to the technical field of detection equipment in machining, in particular to an automatic detection device and method for the position degree of a wheel bolt hole.

Background

In the machining process of aluminum alloy wheels, along with the progress of mass production, a lot of machining parameters need to be detected online in real time so as to find waste products in time, for example, the position degree of bolt holes of the wheels is a particularly important parameter, and if the position degree exceeds the tolerance, normal installation of the wheels cannot be guaranteed. The traditional mode of measuring the wheel bolt hole position degree is that manual hand position degree rule detects one by one, and not only detection efficiency is low very much, and waste time and production efficiency are not high, but also can only detect bolt hole position degree qualified or unqualified, can't detect specific position degree error numerical value, provides the correction reference in the machining. In addition, the position degree of the bolt hole of the wheel is generally the position degree of the conical surface of the bolt hole, and because the conical hole and the straight hole of the bolt hole are processed by the same shaping cutter during processing, the coaxiality deviation is considered to be small, so the position degree of the bolt hole is measured by using a measuring tool at present, and the position degree of the conical hole is indirectly detected by measuring the position degree of the straight hole part of the bolt hole; strictly speaking, the measurement results of this measurement mode are not accurate.

Disclosure of Invention

The embodiment of the application provides a wheel bolt hole position degree automatic detection device and method, has solved the problem that exists among the background art, and not only detection efficiency is high, can satisfy mass production's needs, has guaranteed product quality, has improved production efficiency, can detect the specific error numerical value moreover, is convenient for in time adjust processing parameter, improves product quality.

In order to achieve the above object, the present invention provides the following technical solutions:

in a first aspect, an automatic detection device for the position of a wheel bolt hole is provided, which comprises a main body frame, a hole positioning assembly, a wheel fixing assembly, a height inclination angle adjusting assembly, a Kong Zuobiao measuring assembly, a control unit and a camera, wherein the height inclination angle adjusting assembly is positioned at the bottom of the main body frame, the Kong Zuobiao measuring assembly is fixed on the height inclination angle adjusting assembly, the height of the hole coordinate measuring assembly can be adjusted by the height inclination angle adjusting assembly to enable the distance between the hole coordinate measuring assembly and a flange surface of a wheel to be proper, and the included angle between the measuring surface of the hole coordinate measuring assembly and a horizontal plane is adjusted to enable the measuring surface of the hole coordinate measuring assembly to be parallel to the flange surface of the wheel; the wheel fixing assembly is arranged on the main body frame above the hole coordinate measuring assembly and below the hole positioning assembly, is used for fixing the wheel and can drive the wheel to rotate; the camera is arranged on the main body frame at one side of the wheel fixing assembly and can shoot and acquire the position of the valve hole; the hole positioning assembly is fixed at the top of the main body frame and is used for positioning each bolt hole on the wheel, the hole positioning assembly comprises a transition taper pin, a blind hole is formed in the center of the lower end of the transition taper pin, and the hole positioning assembly can drive the transition taper pin to move forwards and backwards, leftwards and rightwards and upwards and downwards and enable the transition taper pin to be inserted into each bolt hole of the wheel one by one; kong Zuobiao measuring assembly includes distance sensor, measuring needle, X-axis displacement sensor, Y-axis displacement sensor, back-and-forth movement assembly and left-and-right movement assembly; the front-back movement assembly drives the X-axis displacement sensor, the distance sensor and the measuring needle to move in the front-back direction, and the X-axis displacement sensor measures the moving distance of the front-back movement assembly relative to the initial position; the left-right movement assembly drives the distance sensor, the measuring needle, the X-axis displacement sensor and the Y-axis displacement sensor to move in the left-right direction, and the Y-axis displacement sensor measures the moving distance of the left-right movement assembly relative to the initial position; the distance sensor measures the distance from the flange surface of the wheel; the measuring pin is matched with the blind hole at the lower end of the transition taper pin, and the upper end of the measuring pin is inserted into the blind hole at the lower end of the transition taper pin and used for determining the position of the bolt hole on the wheel; the control unit signal connection hole positioning assembly, the wheel fixing assembly, the camera, the height inclination angle adjusting assembly and the Kong Zuobiao measuring assembly. In this embodiment, before measuring the position degree, the adjustment control unit controls the height inclination angle adjustment assembly to adjust the inclination angle of the measurement surface of the hole coordinate measurement assembly, so as to ensure that the measurement surface of the hole coordinate measurement assembly is parallel to the flange reference plane of the wheel, and simultaneously ensure that the axis of the measuring needle is parallel to the axis of the wheel center hole and each bolt hole, thereby ensuring the accuracy of the measured data of the X-axis displacement sensor and the Y-axis displacement sensor. During measurement, the transition taper pin is inserted into the wheel bolt hole first, so that the conical surface of the transition taper pin is matched with the conical surface of the wheel bolt hole, the measuring needle can accurately and directly measure the actual numerical values of the X axis and the Y axis of the taper hole axis of each bolt hole through measuring the blind hole at the lower end of the transition taper pin, and the measuring accuracy is higher and the measuring result is more accurate relative to the position degree of the straight hole part of the measuring bolt hole.

In some embodiments, the elevation inclination angle adjusting assembly comprises a lower fixing plate, a lower servo motor cylinder III, a lower lifting plate, a lower servo motor I, a lower servo motor cylinder I, a central shaft, a lower platform and a rotary table; the lower fixing plate is fixed at the bottom of the main body frame, the lower servo electric cylinder III is fixed on the bottom surface of the lower fixing plate, the telescopic shaft of the lower servo electric cylinder III vertically upwards penetrates through the through hole formed in the corresponding position on the lower fixing plate and is fixedly connected to the bottom surface of the lower lifting plate, a plurality of lower servo electric cylinders I are uniformly arranged on the circumference of the upper surface of the lower lifting plate, the lower ends of the plurality of lower servo electric cylinders I are movably connected to the upper surface of the lower lifting plate, and the upper ends of the plurality of lower servo electric cylinders I are movably connected to the bottom surface of the lower platform; a lower servo motor I is movably connected to the middle position of the lower lifting plate, an output shaft at the upper end of the lower servo motor I penetrates through the lower platform to be connected to a central shaft, and the other end of the central shaft is fixedly connected to the bottom surface of the rotary table; the upper surface of the rotary table is fixedly provided with a hole coordinate measuring assembly. In the embodiment, the lower lifting plate, a plurality of lower servo electric cylinders I (preferably 3) which are uniformly arranged and the lower platform form a parallel mechanism together, and the angle of the lower platform can be randomly adjusted through the expansion and contraction of different lower servo electric cylinders I; meanwhile, the design has compact structure, strong rigidity, high stability, no accumulated error and measurement accuracy. Can make the measuring pin rotate around wheel centre bore axis through servo motor I and center pin down, when measuring each bolt hole position, the position of each hole of finding that X axle displacement sensor and Y axle displacement sensor, only need be surveyed taper hole axis position fine setting, can survey the actual coordinate numerical value of each hole of surveying, the effectual detection efficiency that has improved.

In some embodiments, the height inclination angle adjusting assembly further comprises a lower guide post and a lower guide sleeve, wherein the upper end of the lower guide post is fixed on the bottom surface of the lower lifting plate, the lower end of the lower guide post penetrates through the lower guide sleeve fixed in a through hole formed in the lower fixing plate, and the lower lifting plate moves up and down to drive the lower guide post to move up and down in the guide sleeve. In the embodiment, the guide post and the guide sleeve are matched, so that the stable lifting of the height inclination angle adjusting component and the hole coordinate measuring component in the vertical direction can be ensured, and the measuring errors in the X-axis and Y-axis directions during the measurement of the measuring needle are effectively reduced.

In some embodiments, a bearing is sleeved on the circumference of the central shaft, the bearing is arranged in a bearing seat, and the bearing seat is fixed on the upper surface of the lower platform. In the embodiment, the bearing is sleeved on the circumference of the central shaft, so that smooth rotation of the central shaft is effectively ensured, radial runout during rotation of the central shaft is eliminated, and positioning accuracy during rotation positioning of the measuring needle is ensured.

In some embodiments, the Kong Zuobiao measuring assembly comprises a left-right moving guide rail, a lower sliding block I, a lower servo motor cylinder II, a lower vertical plate II, a Y-axis displacement sensor, a lower sliding plate I, a lower vertical plate I, a lower sliding plate II, a front-back moving guide rail, a lower sliding block II, a lower servo motor II, a lower rack, a lower gear, a lower sliding plate III, an X-axis displacement sensor, a distance sensor, an upper floating seat I, a lower floating seat I, a spring I and a measuring needle; a left-right moving guide rail is fixed on the upper end plane of the height inclination angle adjusting assembly, a lower sliding block I is arranged on the left-right moving guide rail, a lower sliding plate I is fixed at the upper end of the lower sliding block I, a lower vertical plate II is arranged at one end of the left-right moving guide rail, a Y-axis displacement sensor and a lower servo electric cylinder II are arranged on the lower vertical plate II, a piston rod of the lower servo electric cylinder II is connected with one side of the lower sliding plate I, the piston rod of the lower servo electric cylinder II pushes the lower sliding plate I and the lower sliding block I to move left and right along the left-right moving guide rail, and the Y-axis displacement sensor can measure the displacement of the lower sliding plate I along the left-right moving guide rail; a lower vertical plate I is fixed on the left side and the right side of the lower sliding plate I respectively, the two lower vertical plates I are parallel, and a lower sliding plate II is fixed on the two lower vertical plates I; a front-back moving guide rail is fixed on the upper surface of the lower sliding plate II, a lower sliding block II is arranged on the front-back moving guide rail, a lower servo motor II is fixed at the middle position of the bottom surface of the lower sliding plate II, an output shaft of the lower servo motor II penetrates through a through hole in the middle position of the lower sliding plate II to be fixedly connected with a lower gear, a lower rack is arranged on one side, close to the lower gear, of the lower sliding block III, the output shaft of the lower servo motor II drives the lower gear to rotate, and the lower gear drives the lower sliding block II to move back and forth along the front-back moving guide rail through the lower rack; the lower sliding block II is fixedly provided with a lower sliding plate III, one end of a front-back moving guide rail on the lower sliding plate II is fixedly provided with an X-axis displacement sensor, and the X-axis displacement sensor can measure the displacement of the lower sliding plate III along the front-back moving guide rail; the lower slide III is fixedly provided with a distance sensor and an upper and lower floating seat I, a spring I is fixed on the upper and lower floating seat I, and a measuring needle is fixed at the upper end of the spring I. In the embodiment, the structure is compact, and the space is saved to the maximum extent; meanwhile, the use of the left-right moving guide rail can ensure the measurement precision of the X-axis displacement sensor and the Y-axis displacement sensor; the lower servo electric cylinder II can accurately control the position of the measuring needle in the Y direction; the lower servo motor II can accurately control the position of the measuring needle in the X direction; the spring I can effectively avoid damage caused by rigid impact of the measuring needle under abnormal measurement conditions.

In some embodiments, the wheel fixing assembly comprises an upper fixing plate, a left guide rail, a right guide rail, a left sliding plate, a right sliding plate, a left rack, a right rack, a cylinder, an upper gear I, a left shaft, a left bearing seat, a roller, a right shaft, a right bearing seat and an upper servo motor I; the upper fixing plate is fixed on the main body frame above the hole coordinate measuring assembly, the left guide rail and the right guide rail are fixed on the left side and the right side of the upper surface of the upper fixing plate, the left guide rail and the right guide rail are arranged on a straight line, the left guide rail is provided with a left sliding plate, the right guide rail is provided with a right sliding plate, the right side of the left sliding plate is fixedly connected with a left rack, and the left side of the right sliding plate is fixedly connected with a right rack; the left main body frame of the left sliding plate is fixedly provided with a cylinder, a piston rod of the cylinder is connected with the left side of the left sliding plate, or the right main body frame of the right sliding plate is fixedly provided with a cylinder, and a piston rod of the cylinder is connected with the right side of the right sliding plate; a supporting plate is arranged in the middle of the upper fixing plate, an upper gear I and a pinion are fixed on the supporting plate, one of a right rack and a left rack is positioned between the upper gear I and the pinion, the other is positioned on the upper gear I, and the right rack and the left rack are both kept horizontal; a left shaft is fixed on the left sliding plate, a left bearing is sleeved outside the left shaft, the left shaft can rotate, the left bearing is positioned in a left bearing seat, the left bearing seat is fixed on the upper surface of the left sliding plate, and a roller with a V-shaped side surface is fixedly arranged at the upper end of the left shaft; a right shaft is fixed on the right sliding plate, a right bearing is sleeved outside the right shaft, the right shaft can rotate, the right bearing is positioned in a right bearing seat, the right bearing seat is fixed on the upper surface of the right sliding plate, and a roller with a V-shaped side surface is fixedly arranged at the upper end of the right shaft; the bottom surface fixed mounting at left slide goes up servo motor I, goes up servo motor I's output shaft and passes the lower extreme of a left side axle of through-hole fixed connection on the left slide, perhaps goes up servo motor I at the bottom surface fixed mounting of right slide, goes up servo motor I's output shaft and passes the lower extreme of a right side axle of through-hole fixed connection on the right slide. In the embodiment, the design structure is compact, and the centering, clamping and rotation of the wheel are realized by using a limited space.

In some embodiments, left and right sliding belts are respectively arranged on the main body frames on the left and right sliding plates, and the left and right sliding belts are consistent in height and slightly higher than the bottom surfaces of the rollers. Through the design in the embodiment, the lower rims of the wheels on the left sliding belt and the right sliding belt can be completely clamped when the left roller and the right roller synchronously perform centering movement; when the wheel is clamped by the roller, the conical surface below the roller can simultaneously heighten the wheel so that the wheel is higher than the left sliding belt and the right sliding belt, thereby ensuring that the lower end surface position of the wheel is not interfered with the left sliding belt and the right sliding belt when the wheel rotates after being clamped.

In some embodiments, the hole positioning assembly comprises an upper servo motor cylinder II, an upper lifting plate, an upper guide rail III, an upper sliding block I, an upper sliding plate III, an upper servo motor II, an upper gear II, an upper rack II, an upper vertical plate, an upper sliding plate II, an upper guide rail II, an upper sliding block II, an upper sliding plate I, an upper servo motor cylinder I, an upper and lower floating seat II, a spring II and a transition taper pin; the upper servo motor cylinder II is fixed on the top surface of the main body frame, a telescopic rod of the upper servo motor cylinder II is downwards fixed on the upper surface of the upper lifting plate, an upper guide rail III is arranged on the bottom surface of the upper lifting plate in a fixed mode, an upper sliding block I is arranged on the upper guide rail III, the upper sliding block I is fixed on the upper sliding plate III, an upper servo motor II is fixed on the bottom surface of the middle part of the upper sliding plate III, an output shaft of the upper servo motor II penetrates through a middle through hole of the upper sliding plate III to be vertically and upwards fixedly connected to an upper gear II, an upper rack II is fixed on the bottom surface of the upper lifting plate, the upper gear II is matched with the upper rack II, an output shaft of the upper servo motor II drives the upper gear II to rotate, and the upper gear II moves forwards and backwards on the upper rack II to drive the upper sliding plate III to move forwards and backwards; an upper vertical plate is respectively fixed on the left side and the right side of the bottom surface of the upper sliding plate III, an upper sliding plate II is fixed at the lower end of the upper vertical plate, an upper guide rail II which is arranged left and right is fixed on the bottom surface of the upper sliding plate II, the upper sliding block II is arranged on the upper guide rail II and can move left and right on the upper guide rail II, and the bottom surface of the upper sliding block II is fixedly connected to the top surface of the upper sliding plate I; an upper servo electric cylinder I is arranged at the left end or the right end of the upper guide rail II, a telescopic rod of the upper servo electric cylinder I is connected to the left side or the right side of the upper slide plate I, and the telescopic rod of the upper servo electric cylinder I can push the upper slide plate I and the upper slide block II to move left and right along the upper guide rail II; the top surface of the upper and lower floating seat II is fixed on the bottom surface of the upper sliding plate I, the bottom surface of the upper and lower floating seat II is fixedly connected with a spring II, and the lower end of the spring II is fixedly connected with a transition taper pin. The design structure is compact in the embodiment, so that the space is saved to the maximum extent; the use of the upper guide rail III and the upper guide rail II can ensure the positioning precision of the transition taper pin; the upper servo electric cylinder I can accurately control the position of the transition taper pin in the left-right direction; the upper servo motor II can accurately control the position of the transition taper pin in the front-rear direction; the spring II can effectively avoid damage caused by rigid impact of the transition taper pin under the abnormal measurement condition.

In some embodiments, an upper guide post is further fixed on the upper surface of the upper lifting plate, the lower end of the upper guide post is fixed on the upper surface of the upper lifting plate, the upper end of the upper guide post penetrates through a through hole formed in the top surface of the main body frame and stretches into an upper guide sleeve fixed on the top surface of the main body frame, and the upper lifting plate moves up and down to drive the upper guide post to move up and down in the upper guide sleeve. In the embodiment, the upper guide post and the upper guide sleeve are matched, so that the hole positioning assembly can be stably lifted in the vertical direction, and errors in the front-back direction and the left-right direction during positioning of the transition taper pin are effectively reduced.

In a second aspect, an embodiment of the present application provides an automatic detection method for a position degree of a wheel bolt hole, which is applied to any one of the automatic detection devices for a position degree of a wheel bolt hole, and includes the following detection steps:

the first step: the method comprises the steps that a wheel is placed at the position of a wheel fixing assembly, a control unit controls the wheel fixing assembly to fix and clamp the wheel, the control unit controls the wheel fixing assembly to rotate to drive the wheel to rotate, a camera identifies the position of a valve hole on the wheel, then the rotation is stopped, and the control unit obtains the position of a wheel bolt hole through the position of the valve hole;

And a second step of: the distance sensor measures the distance between the hole coordinate measuring component and the flange surface of the wheel and transmits a signal to the control unit, and the control unit controls the height inclination angle adjusting component to adjust the height of the hole coordinate measuring component so that the distance between the hole coordinate measuring component and the flange surface of the wheel is proper;

and a third step of: kong Zuobiao the measuring assembly measures the space coordinates of three points, which are not on the same straight line, of the flange surface of the wheel by using an X-axis displacement sensor, a Y-axis displacement sensor and a distance sensor, the control unit obtains the inclination angle of the flange surface of the wheel according to the space coordinates of the three points, and the control unit controls the height inclination angle adjusting assembly to adjust the inclination angle of the measuring surface of the hole coordinate measuring assembly so that the measuring surface of the hole coordinate measuring assembly is parallel to the flange surface of the wheel;

fourth step: the control unit controls the hole positioning assembly to drive the transition taper pin to move forwards and backwards, leftwards and rightwards and upwards and downwards so that the transition taper pin is inserted into one bolt hole of the wheel, and controls the hole coordinate measuring assembly to insert the measuring pin into a blind hole at the lower end of the transition taper pin, and the position coordinate of the bolt hole is obtained according to the X-axis displacement sensor, the Y-axis displacement sensor and the distance sensor;

fifth step: and repeating the fourth step of the control unit to control the hole positioning assembly and the hole coordinate measuring assembly to be matched with each other to measure the position coordinates of each bolt hole one by one, and calculating to obtain a position degree error according to the measured position coordinates of each bolt hole and the theoretical position coordinates to obtain the actual position degree value of each bolt hole.

According to the automatic position degree detection method, the actual position degree value of each bolt hole of the wheel can be accurately measured, and if the position degree of one hole is out of tolerance, the machine tool can be adjusted and compensated in a targeted mode.

Compared with the prior art, the invention has the beneficial effects that:

the application provides a wheel bolt hole position degree automatic checkout device and method, including main body frame, hole locating component, wheel fixed subassembly, altitude inclination adjustment subassembly, kong Zuobiao measuring component, control unit, camera, realize wheel bolt hole position degree automated inspection, not only detection efficiency is high, can satisfy mass production's needs, has guaranteed product quality, has improved production efficiency, can detect the numerical value of specific error moreover, is convenient for in time adjust processing parameter, improves product quality.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of an automatic detection device for the position of a wheel bolt hole.

Fig. 2 is a schematic structural diagram II of an automatic detection device for the position of a wheel bolt hole.

Fig. 3 is a schematic structural view of a wheel securing assembly of the automatic detection device for the position of a wheel bolt hole according to the present application.

Wherein: 1-main body frame, 2-lower fixed plate, 3-lower servo electric cylinder III, 4-lower lifting plate, 5-lower servo motor I, 6-lower servo electric cylinder I, 7-central shaft, 8-bearing, 9-bearing seat, 10-lower platform, 11-rotary table, 12-lower guide pillar, 13-lower guide sleeve, 14-left and right moving guide rail, 15-lower slide block I, 16-lower servo electric cylinder II, 17-lower vertical plate II, 18-Y axis displacement sensor, 19-lower slide plate I, 20-lower vertical plate I, 21-lower slide plate II, 22-back and forth moving guide rail, 23-lower slide block II, 24-lower servo motor II, 25-lower rack, 26-lower gear, 27-lower slide plate III, 28-distance sensor, and 29-upper and lower floating seat I, 30-spring I, 31-measuring needle, 32-upper fixed plate, 33-left guide rail, 34-right guide rail, 35-left slide plate, 36-right slide plate, 37-left rack, 38-right rack, 39-cylinder, 40-upper gear I, 41-left shaft, 42-left bearing, 43-left bearing seat, 44-roller, 45-right shaft, 46-right bearing, 47-right bearing seat, 48-upper servo motor I, 49-left sliding belt, 50-right sliding belt, 51-upper servo motor cylinder II, 52-upper lifting plate, 53-upper guide post, 54-upper guide sleeve, 55-upper guide rail III, 56-upper slide I, 57-upper slide III, 58-upper servo motor II, 59-upper gear II, 60-upper rack II, 61-upper vertical plate, 62-upper slide II, 63-upper guide rail II, 64-upper slide II, 65-upper slide I, 66-upper servo electric cylinder I, 67-upper and lower floating seat II, 68-spring II, 69-transition push pin, 70-camera and 71-X axis displacement sensor.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The terms "first," "second," "third," and "fourth" and the like in the description and in the claims of this application and in the drawings, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Example 1:

an automatic detection device for the position degree of a wheel bolt hole according to embodiment 1 of the present application is described below with reference to fig. 1 to 3, and includes a main body frame 1, a hole positioning assembly, a wheel fixing assembly, a height inclination angle adjusting assembly, a Kong Zuobiao measuring assembly, a control unit, and a camera 70.

The height inclination angle adjusting component is positioned at the bottom of the main body frame 1, the Kong Zuobiao measuring component is fixed on the height inclination angle adjusting component, the height of the hole coordinate measuring component can be adjusted by the height inclination angle adjusting component, so that the distance between the hole coordinate measuring component and the flange surface of the wheel is proper, and the included angle between the measuring surface of the hole coordinate measuring component and the horizontal plane is adjusted, so that the measuring surface of the hole coordinate measuring component is parallel to the flange surface of the wheel. The height inclination angle adjusting assembly comprises a lower fixing plate 2, a lower servo electric cylinder III 3, a lower lifting plate 4, a lower servo motor I5, a lower servo electric cylinder I6, a central shaft 7, a lower platform 10, a central shaft 7, a bearing 8, a bearing seat 9, a rotary table 11, a lower guide post 12 and a lower guide sleeve 13; the lower fixing plate 2 is fixed at the bottom of the main body frame 1, the lower servo electric cylinder III 3 is fixed on the bottom surface of the lower fixing plate 2, the two lower servo electric cylinders III 3 are fixed below the lower fixing plate 2, and the output end of the lower servo electric cylinder III is hinged with the lower part of the lower lifting plate 4. The telescopic shaft of lower servo electric cylinder III 3 vertically upwards passes through the through-hole fixed connection who offers in the corresponding position on lower fixed plate 2 to the bottom surface of lower lifter plate 4, the upper surface circumference of lower lifter plate 4 evenly sets up a plurality of lower servo electric cylinders I6, the lower extreme swing joint of a plurality of lower servo electric cylinders I6 is to the upper surface of lower lifter plate 4, the upper end swing joint of a plurality of lower servo electric cylinders I6 is to the bottom surface of lower platform 10, the middle evenly distributed of three lower servo electric cylinders I6 at lower lifter plate 4 and lower platform 10, the lower extreme of lower servo electric cylinder I6 is articulated with lower lifter plate 4, the upper end is articulated with lower platform 10. The middle position of the lower lifting plate 4 is movably connected with a lower servo motor I5, the lower servo motor I5 is fixed on the bottom surface of the lower platform 10, an output shaft at the upper end of the lower servo motor I5 penetrates through the lower platform 10 to be connected to a central shaft 7, the other end of the central shaft 7 is fixedly connected to the bottom surface of a rotary table 11, and the rotary table 11 is fixed on the top end of the central shaft 7. A bearing 8 is sleeved on the circumference of the central shaft 7, the bearing 8 is arranged in a bearing seat 9, the central shaft 7 is arranged in the bearing seat of the central shaft 7 through the bearing 8, and the bearing seat 9 is fixed at the central position of the upper surface of the lower platform 10; the upper surface of the rotary table 11 is fixedly provided with a hole coordinate measuring assembly. The upper end of the lower guide post 12 is fixed on the bottom surface of the lower lifting plate 4, the lower end of the lower guide post 12 passes through a lower guide sleeve 13 fixed in a through hole formed in the lower fixing plate 2, and the lower lifting plate 4 moves up and down to drive the lower guide post 12 to move up and down in the guide sleeve. In this embodiment: the four lower guide sleeves 13 are fixed in through holes formed in corresponding positions on the lower fixing plate 2, one ends of four lower guide posts 12 matched with the four lower guide sleeves 13 are fixed below the lower lifting plate 4, and when the lower lifting plate 4 moves up and down, the lower guide posts 12 move up and down in the guide sleeves.

The wheel fixing assembly is arranged on the main body frame 1 above the hole coordinate measuring assembly and below the hole positioning assembly, is used for fixing the wheel and can drive the wheel to rotate. The wheel fixing assembly comprises an upper fixing plate 32, a left guide rail 33, a right guide rail 34, a left slide plate 35, a right slide plate 36, a left rack 37, a right rack 38, a cylinder 39, an upper gear I40, a left shaft 41, a left bearing 42, a left bearing seat 43, a roller 44, a right shaft 45, a right bearing 46, a right bearing seat 47 and an upper servo motor I48; the upper fixing plate 32 is fixed on the main body frame 1 above the hole coordinate measuring assembly, the left and right sides of the upper surface of the upper fixing plate 32 are fixed with the left guide rail 33 and the right guide rail 34, the left guide rail 33 and the right guide rail 34 are on the same straight line, the left guide rail 33 is provided with the left slide plate 35, the right guide rail 34 is provided with the right slide plate 36, the right side of the left slide plate 35 is fixedly connected with a left rack 37, and the left side of the right slide plate 36 is fixedly connected with a right rack 38; an air cylinder 39 is fixedly arranged on the left main body frame 1 of the left slide plate 35, a piston rod of the air cylinder 39 is connected with the left side of the left slide plate 35, or the air cylinder 39 is fixedly arranged on the right main body frame 1 of the right slide plate 36, and a piston rod of the air cylinder 39 is connected with the right side of the right slide plate 36. As shown in fig. 1, a left slide plate 35 is installed above the upper fixing plate 32 through a left guide rail 33 and a left slider, a right slide plate 36 is installed above the upper fixing plate 32 through a right guide rail 34 and a right slider, a supporting plate is provided at the middle position of the upper fixing plate 32, an upper gear i 40 and a pinion are fixed on the supporting plate, one of a right rack 38 and a left rack 37 is positioned between the upper gear i 40 and the pinion, the other is positioned on the upper gear i 40, and both the right rack 38 and the left rack 37 are kept horizontal; the left shaft 41 is fixed on the left slide plate 35, the left shaft 41 is sleeved with the left bearing 42, the left shaft 41 can rotate, the left bearing 42 is positioned in the left bearing seat 43, the left bearing seat 43 is fixed on the upper surface of the left slide plate 35, and the upper end of the left shaft 41 is fixedly provided with the roller 44 with the V-shaped side surface. In this embodiment, two left bearing seats 43 are fixed above the left slide plate 35, two left shafts 41 are respectively installed in the two left bearing seats 43 through left bearings 42, two V-shaped rollers 44 are respectively installed above the two left shafts 41, a left rack 37 is fixed below the left slide plate 35, and the left rack 37 is located between the upper gear i 40 and the pinion. A right shaft 45 is fixed on the right sliding plate 36, a right bearing 46 is sleeved outside the right shaft 45, the right shaft 45 can rotate, the right bearing 46 is positioned in a right bearing seat 47, the right bearing seat 47 is fixed on the upper surface of the right sliding plate 36, and a roller 44 with a V-shaped side surface is fixedly arranged at the upper end of the right shaft 45; as shown in fig. 1, two right bearing seats 47 are fixed above the right slide plate 36, two right shafts 45 are respectively installed in the two right bearing seats 47 through right bearings 46, two V-shaped rollers 44 are respectively installed above the two right shafts 45, a right rack 38 is fixed below the right slide plate 36, and the right rack 38 is meshed with the upper side of the upper gear i 40. An upper servo motor I48 is fixedly mounted on the bottom surface of the left slide plate 35, the output shaft of the upper servo motor I48 is fixedly connected to the lower end of a left shaft 41 through a through hole in the left slide plate 35, or the upper servo motor I48 is fixedly mounted on the bottom surface of the right slide plate 36, and the output shaft of the upper servo motor I48 is fixedly connected to the lower end of a right shaft 45 through a through hole in the right slide plate 36. As shown in fig. 1, the upper servo motor i 48 is fixed below the right slide plate 36, the output end of which is connected to the lower side of one of the right shafts 45, and the cylinder 39 is fixed to the right side of the main body frame 1, and the output end of which is connected to the right side of the right slide plate 36. A left slide belt 49 and a right slide belt 50 are respectively provided on the main body frame 1 on the left slide plate 35 and the right slide plate 36, and the left slide belt 49 and the right slide belt 50 are identical in height and slightly higher than the bottom surface of the roller 44.

The camera 70 is arranged on the main body frame 1 at one side of the wheel fixing assembly, and can shoot and acquire the position of the valve hole;

the hole positioning assembly is fixed at the top of the main body frame 1 and is used for positioning each bolt hole on the wheel, the hole positioning assembly comprises a transition taper pin, a blind hole is formed in the center of the lower end of the transition taper pin, and the hole positioning assembly can drive the transition taper pin to move forwards and backwards, leftwards and rightwards and upwards and downwards and enable the transition taper pin to be inserted into each bolt hole of the wheel one by one. The hole positioning assembly comprises an upper servo electric cylinder II 51, an upper lifting plate 52, an upper guide rail III 55, an upper slide block I56, an upper slide plate III 57, an upper servo motor II 58, an upper gear II 59, an upper rack II 60, an upper vertical plate 61, an upper slide plate II 62, an upper guide rail II 63, an upper slide block II 64, an upper slide plate I65, an upper servo electric cylinder I66, an upper and lower floating seat II 67, a spring II 68 and a transition taper pin; the upper servo motor cylinder II 51 is fixed on the top surface of the main body frame 1, a telescopic rod of the upper servo motor cylinder II 51 is downwards fixed on the upper surface of the upper lifting plate 52, an upper guide rail III 55 is arranged on the bottom surface of the upper lifting plate 52 in a fixed front-back mode, an upper sliding block I56 is arranged on the upper guide rail III 55, the upper sliding block I56 is fixed on an upper sliding plate III 57, an upper servo motor II 58 is fixed on the bottom surface of the middle part of the upper sliding plate III 57, an output shaft of the upper servo motor II 58 passes through a middle through hole of the upper sliding plate III 57 to be vertically and upwards fixedly connected to an upper gear II 59, an upper gear II 60 is fixed on the bottom surface of the upper lifting plate 52, the upper gear II 59 is matched with the upper gear II 60, and the output shaft of the upper servo motor II 58 drives the upper gear II 59 to rotate, and the upper gear II 59 moves forwards and backwards on the upper gear II 60 to drive the upper sliding plate III 57 to move forwards and backwards; an upper vertical plate 61 is respectively fixed on the left side and the right side of the bottom surface of the upper sliding plate III 57, an upper sliding plate II 62 is fixed at the lower end of the upper vertical plate 61, an upper guide rail II 63 which is arranged left and right is fixed on the bottom surface of the upper sliding plate II 62, an upper sliding block II 64 is arranged on the upper guide rail II 63 and can move left and right on the upper guide rail II 63, and the bottom surface of the upper sliding block II 64 is fixedly connected to the top surface of the upper sliding plate I65; an upper servo electric cylinder I66 is arranged at the left end or the right end of the upper guide rail II 63, a telescopic rod of the upper servo electric cylinder I66 is connected to the left side or the right side of the upper slide plate I65, and the telescopic rod of the upper servo electric cylinder I66 can push the upper slide plate I65 and the upper slide block II 64 to move left and right along the upper guide rail II 63; the top surface of the upper and lower floating seat II 67 is fixed on the bottom surface of the upper sliding plate I65, the bottom surface of the upper and lower floating seat II 67 is fixedly connected with a spring II 68, and the lower end of the spring II 68 is fixedly connected with a transition taper pin. An upper guide post 53 is further fixed on the upper surface of the upper lifting plate 52, the lower end of the upper guide post 53 is fixed on the upper surface of the upper lifting plate 52, the upper end of the upper guide post 53 passes through a through hole formed in the top surface of the main body frame 1 and extends into an upper guide sleeve 54 fixed on the top surface of the main body frame 1, and the upper lifting plate 52 moves up and down to drive the upper guide post 53 to move up and down in the upper guide sleeve 54. As shown in fig. 1, a transition taper pin is fixed below a spring ii 68 on an upper floating seat ii 67 and a lower floating seat ii 67, the upper sliding seat ii 67 is fixed below an upper sliding plate i 65, the upper sliding plate i 65 is fixed below an upper sliding plate ii 62 through an upper guide rail ii 63 and an upper sliding block ii 64, an upper servo electric cylinder i 66 is fixed on the left side below the upper sliding plate ii 62, the output end of the upper servo electric cylinder i 66 is connected with the left side of the upper sliding plate i 65, the upper sliding plate ii 62 is fixed below an upper sliding plate iii 57 through an upper vertical plate 61, the upper sliding plate iii 57 is fixed on the bottom surface of an upper lifting plate 52 through an upper guide rail iii 55 and an upper sliding block i, an upper rack ii 60 is also fixed on the bottom surface of the upper lifting plate 52, an upper servo motor ii 58 is fixed on the bottom surface of the upper sliding plate iii 57, an upper gear ii 59 is meshed with the upper rack ii 60, four upper guide posts 53 are fixed on the upper surface of the upper lifting plate 52, four upper guide sleeves 54 are matched with the four upper guide posts 53, and four upper guide sleeves 54 are fixed in through holes formed in the top surface of the main body frame 1; two upper servo electric cylinders II 51 are fixed at the top end of the main body frame 1, and the output ends of the two upper servo electric cylinders II are hinged with the upper surface of an upper lifting plate 52.

Kong Zuobiao measuring components comprise a distance sensor 28, a measuring needle 31, an X-axis displacement sensor 71, a Y-axis displacement sensor 18, a front-back motion component and a left-right motion component; the front-back movement assembly drives the X-axis displacement sensor 71, the distance sensor 28 and the measuring needle 31 to move in the front-back direction, and the X-axis displacement sensor 71 measures the moving distance of the front-back movement assembly relative to the initial position; the left-right movement assembly drives the distance sensor 28, the measuring needle 31, the X-axis displacement sensor 71 and the Y-axis displacement sensor 18 to move in the left-right direction, and the Y-axis displacement sensor 18 measures the moving distance of the left-right movement assembly relative to the initial position; the distance sensor 28 measures the distance from the flange face of the wheel; the measuring needle 31 is matched with a blind hole at the lower end of the transition taper pin, and the upper end of the measuring needle 31 is inserted into the blind hole at the lower end of the transition taper pin and used for determining the position of a bolt hole on a wheel. The Kong Zuobiao measuring assembly comprises a left-right moving guide rail 14, a lower sliding block I15, a lower servo electric cylinder II 16, a lower vertical plate II 17, a Y-axis displacement sensor 18, a lower sliding plate I19, a lower vertical plate I20, a lower sliding plate II 21, a front-back moving guide rail 22, a lower sliding block II 23, a lower servo motor II 24, a lower rack 25, a lower gear 26, a lower sliding plate III 27, an X-axis displacement sensor 71, a distance sensor 28, an upper floating seat I29, a lower floating seat I30 and a measuring needle 31; the upper end plane of the height inclination angle adjusting assembly is fixedly provided with a left-right moving guide rail 14, namely, the upper surface of the rotary table 11 is fixedly provided with a left-right moving guide rail 14, the left-right moving guide rail 14 is provided with a lower slide block I15, the upper end of the lower slide block I15 is fixedly provided with a lower slide plate I19, and the lower slide plate I19 is arranged on the upper surface of the rotary table 11 through the lower guide rail I and the lower slide block I15. One side of the upper surface of the rotary table 11, one end of the left and right moving guide rail 14 is provided with a lower vertical plate II 17, a Y-axis displacement sensor 18 and a lower servo motor cylinder II 16 are arranged on the lower vertical plate II 17, a piston rod of the lower servo motor cylinder II 16 is connected with one side of a lower sliding plate I19, the piston rod of the lower servo motor cylinder II 16 pushes the lower sliding plate I19 and the lower sliding plate I15 to move left and right along the left and right moving guide rail 14, the Y-axis displacement sensor 18 can measure the displacement of the lower sliding plate I19 along the left and right moving guide rail 14, as shown in fig. 1, the lower vertical plate II 17 is fixed on the right side of the upper end of the rotary table 11, the lower servo motor cylinder II 16 is fixed on the right side of the lower vertical plate II 17, the output end of the lower servo motor cylinder II is connected with the right side of the lower vertical plate II 19, the Y-axis displacement sensor 18 is fixed on the right side of the lower vertical plate II 17 and is arranged at the lower end of the lower servo motor cylinder II 16, and the output end of the lower servo motor cylinder II is connected with the right side of the lower sliding plate I19. A lower vertical plate I20 is respectively fixed on the left side and the right side of the lower sliding plate I19, the two lower vertical plates I20 are parallel, a lower sliding plate II 21 is fixed on the two lower vertical plates I20, and the lower sliding plate II 21 is fixed above the lower sliding plate I19 through the lower vertical plates I20. The upper surface of the lower slide plate II 21 is fixedly provided with a front-back moving guide rail 22, the front-back moving guide rail 22 is provided with a lower slide block II 23, a lower servo motor II 24 is fixed at the middle position of the bottom surface of the lower slide plate II 21, an output shaft of the lower servo motor II 24 penetrates through a through hole in the middle position of the lower slide plate II 21 to be fixedly connected with a lower gear 26, one side, close to the lower gear 26, of the bottom surface of the lower slide block III is provided with a lower rack 25, and the lower gear 26 is meshed with the lower rack 25. The output shaft of the lower servo motor II 24 drives the lower gear 26 to rotate, and the lower gear 26 drives the lower slide block II 23 to move back and forth along the back and forth moving guide rail 22 through the lower rack 25; the lower slide block II 23 is fixedly provided with a lower slide plate III 27, one end of the front and back moving guide rail 22 on the lower slide plate II 21 is fixedly provided with an X-axis displacement sensor 71, the X-axis displacement sensor 71 can measure the displacement of the lower slide plate III 27 along the front and back moving guide rail 22, as shown in figure 1, the X-axis displacement sensor 71 is fixed on the side surface of the upper end of the lower slide plate II 21, and the output end of the X-axis displacement sensor 71 is connected with the lower end of the lower slide plate III 27. The distance sensor 28 and the upper and lower floating seat I29 are fixedly arranged on the lower sliding plate III 27, the distance sensor 28 is fixed on the left side of the upper end of the lower sliding plate III 27, the upper and lower floating seat I29 is fixed on the right side of the upper end of the lower sliding plate III 27, the upper and lower floating seat I29 is fixedly provided with a spring I30, and the upper end of the spring I30 is fixedly provided with a measuring needle 31.

The control unit signal connection hole positioning assembly, the wheel fixing assembly, the camera 70, the altitude inclination angle adjusting assembly and the Kong Zuobiao measuring assembly.

The detection method of the automatic detection device for the position degree of the wheel bolt hole comprises the following detection steps:

the first step: the wheels are placed at the positions of the wheel fixing assemblies, the control unit controls the wheel fixing assemblies to fix and clamp the wheels, the air cylinder 39 pushes the right sliding plate 36 to move leftwards, and the four V-shaped rollers 44 synchronously clamp the wheels through the upper gear I40, the right rack 38 and the left rack 37; the control unit controls the wheel fixing assembly to rotate so as to drive the wheel to rotate, the upper servo motor I48 enables the wheel in a wheel clamping state to rotate through the right shaft 45, the camera 70 identifies the position of a valve hole on the wheel, then the rotation is stopped, and the control unit obtains the position of a wheel bolt hole through the position of the valve hole; here, since the position of the valve hole and the position of the bolt hole are determined, the position of the bolt hole can be obtained from the position of the valve hole.

And a second step of: the distance sensor 28 measures the distance between the hole coordinate measuring assembly and the flange surface of the wheel and transmits a signal to the control unit, the control unit controls the height inclination angle adjusting assembly to adjust the height of the hole coordinate measuring assembly to enable the distance between the hole coordinate measuring assembly and the flange surface of the wheel to be suitable, and the lower servo electric cylinder III 3 enables the distance sensor 28 to move upwards to the position below the flange surface of the wheel through the lower guide post 12 and the lower guide sleeve 13;

And a third step of: kong Zuobiao the measuring assembly measures the space coordinates of three points, which are not on the same straight line, of the flange surface of the wheel by using the X-axis displacement sensor 71, the Y-axis displacement sensor 18 and the distance sensor 28, the control unit obtains the inclination angle of the flange surface of the wheel according to the space coordinates of the three points, and the control unit controls the height inclination angle adjusting assembly to adjust the inclination angle of the measuring surface of the hole coordinate measuring assembly so that the measuring surface of the hole coordinate measuring assembly is parallel to the flange surface of the wheel; the lower servo motor II 24 moves the measuring needle 31 back and forth through the lower gear 26 and the lower rack 25, the lower servo motor cylinder II 16 moves the measuring needle 31 left and right through the lower guide rail I, the lower sliding block I15 and the lower sliding block I19, the space coordinates of three points which are not on the same straight line of the flange surface of the wheel are measured through the X-axis displacement sensor 71, the Y-axis displacement sensor 18 and the distance sensor 28, and after the inclination angle of the flange surface of the wheel is obtained, the angles of the lower platform 10 are adjusted through the three servo motor cylinders I, so that the angles are completely parallel to the flange surface of the wheel;

fourth step: the control unit controls the hole positioning assembly to drive the transition taper pin to move forwards and backwards, leftwards and rightwards and upwards and downwards so that the transition taper pin is inserted into one bolt hole of the wheel, and controls the hole coordinate measuring assembly to insert the measuring needle 31 into a blind hole at the lower end of the transition taper pin, and the position coordinate of the bolt hole is obtained according to the X-axis displacement sensor 71, the Y-axis displacement sensor 18 and the distance sensor 28; the upper servo electric cylinder I66 enables the transition taper pin to move left and right through the upper guide rail II 63, the upper servo motor II 58 enables the transition taper pin to move back and forth through the upper gear II 59, the upper rack II 60 and the upper guide rail III 55, the upper servo electric cylinder II 51 enables the transition taper pin to move up and down through the upper guide post 53 and the upper guide sleeve 54, the transition taper pin can be accurately inserted into a taper hole of a bolt hole of a wheel through the movement, and the conical surface of the transition taper pin is tightly attached to the conical surface of the bolt hole of the wheel;

Fifth step: and repeating the fourth step of the control unit to control the hole positioning assembly and the hole coordinate measuring assembly to be matched with each other to measure the position coordinates of each bolt hole one by one, so that the transition taper pins are inserted into the taper holes of each bolt hole of the wheel one by one, the measuring needle 31 measures the actual coordinates of the holes at the lower end of the transition taper pins one by one, and the position degree error is calculated according to the measured position coordinates of each bolt hole and the theoretical position coordinates to obtain the actual position degree value of each bolt hole.

In summary, the invention provides an automatic detection device and method for the position degree of a wheel bolt hole, which comprises a main body frame, a hole positioning assembly, a wheel fixing assembly, a height inclination angle adjusting assembly, a Kong Zuobiao measuring assembly, a control unit and a camera, and can realize automatic detection of the position degree of the wheel bolt hole, so that the detection efficiency is high, the requirement of mass production can be met, the product quality is ensured, the production efficiency is improved, the specific error value can be detected, the processing parameters can be conveniently and timely adjusted, and the product quality is improved.

The foregoing has outlined rather broadly the more detailed description of embodiments of the present application, wherein specific examples are provided herein to illustrate the principles and embodiments of the present application, the above examples being provided solely to assist in the understanding of the methods of the present application and the core ideas thereof; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.

Claims

1. The utility model provides a wheel bolt hole position degree automatic checkout device, includes main body frame, hole locating component, wheel fixed subassembly, high inclination adjustment subassembly, kong Zuobiao measurement component, control unit, camera, its characterized in that:

the height inclination angle adjusting component is positioned at the bottom of the main body frame, the Kong Zuobiao measuring component is fixed on the height inclination angle adjusting component, the height of the hole coordinate measuring component can be adjusted by the height inclination angle adjusting component so that the distance between the hole coordinate measuring component and the flange surface of the wheel is proper, and the included angle between the measuring surface of the hole coordinate measuring component and the horizontal plane is adjusted so that the measuring surface of the hole coordinate measuring component is parallel to the flange surface of the wheel;

the wheel fixing assembly is arranged on the main body frame above the hole coordinate measuring assembly and below the hole positioning assembly, is used for fixing the wheel and can drive the wheel to rotate;

the camera is arranged on the main body frame at one side of the wheel fixing assembly and can shoot and acquire the position of the valve hole;

the hole positioning assembly is fixed at the top of the main body frame and is used for positioning each bolt hole on the wheel, the hole positioning assembly comprises a transition taper pin, a blind hole is formed in the center of the lower end of the transition taper pin, and the hole positioning assembly can drive the transition taper pin to move forwards and backwards, leftwards and rightwards and upwards and downwards and enable the transition taper pin to be inserted into each bolt hole of the wheel one by one;

Kong Zuobiao measuring assembly includes distance sensor, measuring needle, X-axis displacement sensor, Y-axis displacement sensor, back-and-forth movement assembly and left-and-right movement assembly; the front-back movement assembly drives the X-axis displacement sensor, the distance sensor and the measuring needle to move in the front-back direction, and the X-axis displacement sensor measures the moving distance of the front-back movement assembly relative to the initial position; the left-right movement assembly drives the distance sensor, the measuring needle, the X-axis displacement sensor and the Y-axis displacement sensor to move in the left-right direction, and the Y-axis displacement sensor measures the moving distance of the left-right movement assembly relative to the initial position; the distance sensor measures the distance from the flange surface of the wheel; the measuring pin is matched with the blind hole at the lower end of the transition taper pin, and the upper end of the measuring pin is inserted into the blind hole at the lower end of the transition taper pin and used for determining the position of the bolt hole on the wheel;

the control unit signal connection hole positioning assembly, the wheel fixing assembly, the camera, the height inclination angle adjusting assembly and the Kong Zuobiao measuring assembly.

2. The automatic detection device for the position degree of a wheel bolt hole according to claim 1, wherein: the height inclination angle adjusting assembly comprises a lower fixed plate, a lower servo electric cylinder III, a lower lifting plate, a lower servo motor I, a lower servo electric cylinder I, a central shaft, a lower platform and a rotary table; the lower fixing plate is fixed at the bottom of the main body frame, the lower servo electric cylinder III is fixed on the bottom surface of the lower fixing plate, the telescopic shaft of the lower servo electric cylinder III vertically upwards penetrates through the through hole formed in the corresponding position on the lower fixing plate and is fixedly connected to the bottom surface of the lower lifting plate, a plurality of lower servo electric cylinders I are uniformly arranged on the circumference of the upper surface of the lower lifting plate, the lower ends of the plurality of lower servo electric cylinders I are movably connected to the upper surface of the lower lifting plate, and the upper ends of the plurality of lower servo electric cylinders I are movably connected to the bottom surface of the lower platform; a lower servo motor I is movably connected to the middle position of the lower lifting plate, an output shaft at the upper end of the lower servo motor I penetrates through the lower platform to be connected to a central shaft, and the other end of the central shaft is fixedly connected to the bottom surface of the rotary table; the upper surface of the rotary table is fixedly provided with a hole coordinate measuring assembly.

3. The automatic detection device for the position degree of a wheel bolt hole according to claim 2, wherein: the height inclination angle adjusting assembly further comprises a lower guide post and a lower guide sleeve, the upper end of the lower guide post is fixed on the bottom surface of the lower lifting plate, the lower end of the lower guide post penetrates through the lower guide sleeve fixed in the through hole formed in the lower fixing plate, and the lower lifting plate moves up and down to drive the lower guide post to move up and down in the guide sleeve.

4. The automatic detection device for the position degree of a wheel bolt hole according to claim 2, wherein: the circumference of the central shaft is sleeved with a bearing, the bearing is arranged in a bearing seat, and the bearing seat is fixed on the upper surface of the lower platform.

5. The automatic detection device for the position degree of a wheel bolt hole according to claim 1, wherein: the Kong Zuobiao measuring assembly comprises a left-right moving guide rail, a lower sliding block I, a lower servo electric cylinder II, a lower vertical plate II, a Y-axis displacement sensor, a lower sliding plate I, a lower vertical plate I, a lower sliding plate II, a front-back moving guide rail, a lower sliding block II, a lower servo motor II, a lower rack, a lower gear, a lower sliding plate III, an X-axis displacement sensor, a distance sensor, an upper and lower floating seat I, a spring I and a measuring needle; a left-right moving guide rail is fixed on the upper end plane of the height inclination angle adjusting assembly, a lower sliding block I is arranged on the left-right moving guide rail, a lower sliding plate I is fixed at the upper end of the lower sliding block I, a lower vertical plate II is arranged at one end of the left-right moving guide rail, a Y-axis displacement sensor and a lower servo electric cylinder II are arranged on the lower vertical plate II, a piston rod of the lower servo electric cylinder II is connected with one side of the lower sliding plate I, the piston rod of the lower servo electric cylinder II pushes the lower sliding plate I and the lower sliding block I to move left and right along the left-right moving guide rail, and the Y-axis displacement sensor can measure the displacement of the lower sliding plate I along the left-right moving guide rail; a lower vertical plate I is fixed on the left side and the right side of the lower sliding plate I respectively, the two lower vertical plates I are parallel, and a lower sliding plate II is fixed on the two lower vertical plates I; a front-back moving guide rail is fixed on the upper surface of the lower sliding plate II, a lower sliding block II is arranged on the front-back moving guide rail, a lower servo motor II is fixed at the middle position of the bottom surface of the lower sliding plate II, an output shaft of the lower servo motor II penetrates through a through hole in the middle position of the lower sliding plate II to be fixedly connected with a lower gear, a lower rack is arranged on one side, close to the lower gear, of the lower sliding block II, the output shaft of the lower servo motor II drives the lower gear to rotate, and the lower gear drives the lower sliding block II to move back and forth along the front-back moving guide rail through the lower rack; the lower sliding block II is fixedly provided with a lower sliding plate III, one end of a front-back moving guide rail on the lower sliding plate II is fixedly provided with an X-axis displacement sensor, and the X-axis displacement sensor can measure the displacement of the lower sliding plate III along the front-back moving guide rail; the lower slide III is fixedly provided with a distance sensor and an upper and lower floating seat I, a spring I is fixed on the upper and lower floating seat I, and a measuring needle is fixed at the upper end of the spring I.

6. The automatic detection device for the position degree of a wheel bolt hole according to claim 1, wherein: the wheel fixing assembly comprises an upper fixing plate, a left guide rail, a right guide rail, a left sliding plate, a right sliding plate, a left rack, a right rack, a cylinder, an upper gear I, a left shaft, a left bearing seat, a roller, a right shaft, a right bearing seat and an upper servo motor I; the upper fixing plate is fixed on the main body frame above the hole coordinate measuring assembly, the left guide rail and the right guide rail are fixed on the left side and the right side of the upper surface of the upper fixing plate, the left guide rail and the right guide rail are arranged on a straight line, the left guide rail is provided with a left sliding plate, the right guide rail is provided with a right sliding plate, the right side of the left sliding plate is fixedly connected with a left rack, and the left side of the right sliding plate is fixedly connected with a right rack; the left main body frame of the left sliding plate is fixedly provided with a cylinder, a piston rod of the cylinder is connected with the left side of the left sliding plate, or the right main body frame of the right sliding plate is fixedly provided with a cylinder, and a piston rod of the cylinder is connected with the right side of the right sliding plate; a supporting plate is arranged in the middle of the upper fixing plate, an upper gear I and a pinion are fixed on the supporting plate, one of a right rack and a left rack is positioned between the upper gear I and the pinion, the other is positioned on the upper gear I, and the right rack and the left rack are both kept horizontal; a left shaft is fixed on the left sliding plate, a left bearing is sleeved outside the left shaft, the left shaft can rotate, the left bearing is positioned in a left bearing seat, the left bearing seat is fixed on the upper surface of the left sliding plate, and a roller with a V-shaped side surface is fixedly arranged at the upper end of the left shaft; a right shaft is fixed on the right sliding plate, a right bearing is sleeved outside the right shaft, the right shaft can rotate, the right bearing is positioned in a right bearing seat, the right bearing seat is fixed on the upper surface of the right sliding plate, and a roller with a V-shaped side surface is fixedly arranged at the upper end of the right shaft; the bottom surface fixed mounting at left slide goes up servo motor I, goes up servo motor I's output shaft and passes the lower extreme of a left side axle of through-hole fixed connection on the left slide, perhaps goes up servo motor I at the bottom surface fixed mounting of right slide, goes up servo motor I's output shaft and passes the lower extreme of a right side axle of through-hole fixed connection on the right slide.

7. The automatic detection device for the position degree of a wheel bolt hole according to claim 6, wherein: the left sliding belt and the right sliding belt are respectively arranged on the main body frames on the left sliding plate and the right sliding plate, are consistent in height and are slightly higher than the bottom surfaces of the rollers.

8. The automatic detection device for the position degree of a wheel bolt hole according to claim 1, wherein: the hole positioning assembly comprises an upper servo electric cylinder II, an upper lifting plate, an upper guide rail III, an upper sliding block I, an upper sliding plate III, an upper servo motor II, an upper gear II, an upper rack II, an upper vertical plate, an upper sliding plate II, an upper guide rail II, an upper sliding block II, an upper sliding plate I, an upper servo electric cylinder I, an upper and lower floating seat II, a spring II and a transition taper pin; the upper servo motor cylinder II is fixed on the top surface of the main body frame, a telescopic rod of the upper servo motor cylinder II is downwards fixed on the upper surface of the upper lifting plate, an upper guide rail III is arranged on the bottom surface of the upper lifting plate in a fixed mode, an upper sliding block I is arranged on the upper guide rail III, the upper sliding block I is fixed on the upper sliding plate III, an upper servo motor II is fixed on the bottom surface of the middle part of the upper sliding plate III, an output shaft of the upper servo motor II penetrates through a middle through hole of the upper sliding plate III to be vertically and upwards fixedly connected to an upper gear II, an upper rack II is fixed on the bottom surface of the upper lifting plate, the upper gear II is matched with the upper rack II, an output shaft of the upper servo motor II drives the upper gear II to rotate, and the upper gear II moves forwards and backwards on the upper rack II to drive the upper sliding plate III to move forwards and backwards; an upper vertical plate is respectively fixed on the left side and the right side of the bottom surface of the upper sliding plate III, an upper sliding plate II is fixed at the lower end of the upper vertical plate, an upper guide rail II which is arranged left and right is fixed on the bottom surface of the upper sliding plate II, the upper sliding block II is arranged on the upper guide rail II and can move left and right on the upper guide rail II, and the bottom surface of the upper sliding block II is fixedly connected to the top surface of the upper sliding plate I; an upper servo electric cylinder I is arranged at the left end or the right end of the upper guide rail II, a telescopic rod of the upper servo electric cylinder I is connected to the left side or the right side of the upper slide plate I, and the telescopic rod of the upper servo electric cylinder I can push the upper slide plate I and the upper slide block II to move left and right along the upper guide rail II; the top surface of the upper and lower floating seat II is fixed on the bottom surface of the upper sliding plate I, the bottom surface of the upper and lower floating seat II is fixedly connected with a spring II, and the lower end of the spring II is fixedly connected with a transition taper pin.

9. The automatic detection device for the position degree of a wheel bolt hole according to claim 8, wherein: an upper guide post is further fixed on the upper surface of the upper lifting plate, the lower end of the upper guide post is fixed on the upper surface of the upper lifting plate, the upper end of the upper guide post penetrates through a through hole formed in the top surface of the main body frame and stretches into an upper guide sleeve fixed on the top surface of the main body frame, and the upper lifting plate moves up and down to drive the upper guide post to move up and down in the upper guide sleeve.

10. An automatic detection method for the position degree of a wheel bolt hole, which is applied to the automatic detection device for the position degree of the wheel bolt hole, and is characterized in that: the method comprises the following detection steps: