CN202255302U - Automobile wheel hub bolt hole detection device - Google Patents

Automobile wheel hub bolt hole detection device Download PDF

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Publication number
CN202255302U
CN202255302U CN2011203311004U CN201120331100U CN202255302U CN 202255302 U CN202255302 U CN 202255302U CN 2011203311004 U CN2011203311004 U CN 2011203311004U CN 201120331100 U CN201120331100 U CN 201120331100U CN 202255302 U CN202255302 U CN 202255302U
Authority
CN
China
Prior art keywords
bolt hole
chip microcomputer
radius
hole
wheel hub
Prior art date
Application number
CN2011203311004U
Other languages
Chinese (zh)
Inventor
郭三华
白秀秀
董艳艳
曹丽娟
初玲
Original Assignee
烟台汽车工程职业学院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 烟台汽车工程职业学院 filed Critical 烟台汽车工程职业学院
Priority to CN2011203311004U priority Critical patent/CN202255302U/en
Application granted granted Critical
Publication of CN202255302U publication Critical patent/CN202255302U/en

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Abstract

The utility model provides an automobile wheel hub bolt hole detection device, and belongs to the automobile detection field. The automobile wheel hub bolt hole detection device is composed of an automobile wheel hub bolt hole, a CCD camera, an image collector, a one-chip microcomputer, a liquid crystal display, and an alarm device. The CCD camera is connected with the image collector. The image collector is connected with the one-chip microcomputer. The one-chip microcomputer is connected with the liquid crystal display and the alarm device. An image acquired by the CCD camera is processed by the image collector. Circle center coordinates and radius occupied pixels of peripheral holes in the bolt hole are calculated. The one-chip microcomputer uses the ratio of each hole radius value in a standard bolt hole to occupied pixels to calculate an actual value corresponding to the occupied pixels of each hole radius. The circle center coordinates of the peripheral holes combine with the least square method to acquire circle center included angles and pitch radius occupied pixels of the peripheral holes. The one-chip microcomputer uses the ratio of a pitch radius value of the standard bolt hole to the occupied pixels to calculate an actual value corresponding to the occupied pixels of a pitch radius. A calculated value is displayed by the liquid crystal display. If the value exceeds an allowable error, the alarm device is started.

Description

A kind of automotive hub bolt hole pick-up unit
Technical field
The utility model provides a kind of automotive hub bolt hole pick-up unit, belongs to the Automobile Detection field.
Background technology
The automotive hub bolt hole has models such as four holes, five holes, six holes, and the designing requirement processing of automotive hub bolt hole is more accurate, and hole count and pitch radius are its two important parameters; But present method mainly is to measure its pitch radius, and method of application simply and not relates to the radius in every hole in the bolt hole, the angle between the hole on every side; The error ratio that causes like this is bigger; Even wheel can be installed, its security also can be affected, and is directed to this; Propose a kind of automotive hub bolt hole pick-up unit, have good practicability.
Summary of the invention
In view of above-mentioned; The utility model fundamental purpose is to provide a kind of automotive hub bolt hole pick-up unit; Can the be real-time automotive hub bolt hole be detected measured the radius in each hole in the hub stud holes, the pitch radius of hub stud holes accurately, has very strong practicality.
In order to achieve the above object, the technical scheme taked of the utility model invention is: this device is made up of automotive hub bolt hole, CCD camera, image acquisition device, single-chip microcomputer, liquid crystal display, warning device, and wherein the CCD camera links to each other with image acquisition device; Image acquisition device links to each other with single-chip microcomputer; Single-chip microcomputer links to each other with liquid crystal indicator, warning device, the CCD camera vertically be positioned over the automotive hub bolt hole directly over, the video image that the CCD camera is obtained; Handle through image acquisition device; Expansion, erosion algorithm in the denoising of utilization image, binaryzation, the morphology obtain the complete edge in each hole in the more complete bolt hole, in conjunction with broad sense Hough algorithm, calculate each hole circle heart coordinate and the shared number of pixels of radius thereof in the hub stud holes; And data are sent into single-chip microcomputer; Utilize interior each pore radius of hub stud holes of standard and the ratio between its shared pixel, single-chip microcomputer calculates the corresponding actual value of the shared pixel of each pore radius in the actual hub stud holes of obtaining, and utilizes central coordinate of circle, the least square method in each hole; The angle and the shared pixel of pitch radius thereof of the hole circle heart around calculating in the hub stud holes; Utilize the hub stud holes pitch radius of standard and the ratio between its shared pixel, single-chip microcomputer calculates the corresponding actual value of the shared pixel of the actual hub stud holes pitch radius of obtaining, and related data is carried out liquid crystal display; If actual value surpasses permissible error, then start warning device and report to the police.
The utility model is gathered the measurement data of automotive hub bolt hole through image acquisition device; Through single-chip microcomputer to each pore radius in the automotive hub bolt hole of gathering, the angle of the hole circle heart and the pitch radius of bolt hole are calculated on every side; And compare with normal data; In the error allowed band, obtain accurate measured value, practicality is stronger.
Description of drawings
Fig. 1 is the systematic schematic diagram of the utility model.This system is made up of automotive hub bolt hole (1), CCD camera (2), image acquisition device (3), single-chip microcomputer (4), liquid crystal display (5), warning device (6).
Fig. 2 is the workflow diagram of the utility model.Mainly by automotive hub bolt hole (1); CCD camera (2); Image acquisition device (3); Image smoothing denoising (7); The binaryzation of image (8); Morphology expands to corrode and calculates (9); Broad sense Hough algorithm (10); The shared pixel of each pore radius (11) in the bolt hole; The central coordinate of circle in each hole (12); Least square method (13); The shared pixel of the angle of the hole circle heart and pitch radius thereof (14) on every side; Single-chip microcomputer (4); Each pore radius value and shared pixel ratio (15) thereof in the standard hub stud holes; Each pitch radius value and shared pixel ratio (16) thereof in the standard hub stud holes; Each pore radius in the hub stud holes; Hole circle heart angle and pitch radius actual value (17) thereof on every side; Liquid crystal display (5); Warning device (6) is formed.
Embodiment
Below in conjunction with accompanying drawing the utility model invention is further explained.
Fig. 2 is the system works flow process figure of the utility model, and as shown in Figure 2, its concrete steps are following:
Step 1CCD camera (2) is gathered the image of each automotive hub bolt hole (1) in real time;
Step 2 is sent the image of gathering into image acquisition device (3); Obtain the cardinal principle edge in every hole in the bolt hole through the binaryzation (8) of image smoothing denoising (7), image; Expand to corrode through morphology again and calculate (9); Obtain the complete edge in every hole in the bolt hole,, obtain the shared pixel of each pore radius (11) in the bolt hole in conjunction with broad sense Hough algorithm (10); Utilize the central coordinate of circle (12) in each hole to combine least square method (13); Obtain the angle and the shared pixel of pitch radius (14) thereof of the hole circle heart on every side,, calculate each pore radius in the hub stud holes, hole circle heart angle and pitch radius actual value (17) thereof on every side through each pore radius value in single-chip microcomputer utilization (4) the standard hub stud holes and shared pixel ratio (15) and standard hub stud holes pitch radius value and shared pixel ratio (16) thereof
Step 3 is with every pore radius in the hub stud holes, hole circle heart angle and pitch radius actual value (14) thereof are carried out liquid crystal display (5) on every side, if exceed the error range of permission, then single-chip microcomputer (4) starts warning device (6) and reports to the police.

Claims (1)

1. automotive hub bolt hole pick-up unit; It is characterized in that: this device is made up of CCD camera (1), image acquisition device (2), single-chip microcomputer (3), liquid crystal display (4), warning device (5); Wherein CCD camera (1) links to each other with image acquisition device (2); Image acquisition device (2) links to each other with single-chip microcomputer (3), and single-chip microcomputer (3) links to each other with liquid crystal display (4), warning device (5).
CN2011203311004U 2011-08-28 2011-08-28 Automobile wheel hub bolt hole detection device CN202255302U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203311004U CN202255302U (en) 2011-08-28 2011-08-28 Automobile wheel hub bolt hole detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203311004U CN202255302U (en) 2011-08-28 2011-08-28 Automobile wheel hub bolt hole detection device

Publications (1)

Publication Number Publication Date
CN202255302U true CN202255302U (en) 2012-05-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203311004U CN202255302U (en) 2011-08-28 2011-08-28 Automobile wheel hub bolt hole detection device

Country Status (1)

Country Link
CN (1) CN202255302U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102950510A (en) * 2012-11-13 2013-03-06 浙江今跃机械科技开发有限公司 Detector, flexible production system, flexible production line and detecting method
CN103604365A (en) * 2013-10-29 2014-02-26 格林精密部件(苏州)有限公司 Valve-bush oil-hole detection method and detection mechanism
CN103712555A (en) * 2013-07-10 2014-04-09 湖北工业大学 Automobile crossbeam assembly hole visual on-line measurement system and method thereof
CN105674879A (en) * 2016-01-08 2016-06-15 浙江科技学院 Light curtain measurement-based vehicle wheel hub screw hole identification method, masking method and system
CN105716650A (en) * 2014-12-01 2016-06-29 昆山康斯特精密机械有限公司 End face run-out and bolt detection integrated machine for third generation hub unit
CN109060262A (en) * 2018-09-27 2018-12-21 芜湖飞驰汽车零部件技术有限公司 A kind of wheel rim weld joint air-tight detection device and air-tightness detection method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102950510A (en) * 2012-11-13 2013-03-06 浙江今跃机械科技开发有限公司 Detector, flexible production system, flexible production line and detecting method
CN102950510B (en) * 2012-11-13 2015-08-05 浙江今跃机械科技开发有限公司 Checkout gear, flexible manufacturing system, flexible production line and detection method
CN103712555A (en) * 2013-07-10 2014-04-09 湖北工业大学 Automobile crossbeam assembly hole visual on-line measurement system and method thereof
CN103712555B (en) * 2013-07-10 2016-06-29 湖北工业大学 Automotive frame pilot hole vision on-line measurement system and method thereof
CN103604365A (en) * 2013-10-29 2014-02-26 格林精密部件(苏州)有限公司 Valve-bush oil-hole detection method and detection mechanism
CN105716650A (en) * 2014-12-01 2016-06-29 昆山康斯特精密机械有限公司 End face run-out and bolt detection integrated machine for third generation hub unit
CN105716650B (en) * 2014-12-01 2018-01-23 昆山康斯特精密机械有限公司 End face run-out and bolt the detection all-in-one of third generation hub
CN105674879A (en) * 2016-01-08 2016-06-15 浙江科技学院 Light curtain measurement-based vehicle wheel hub screw hole identification method, masking method and system
CN105674879B (en) * 2016-01-08 2018-11-06 浙江科技学院 The recognition methods of automotive hub screw hole, covering method and the system measured based on light curtain
CN109060262A (en) * 2018-09-27 2018-12-21 芜湖飞驰汽车零部件技术有限公司 A kind of wheel rim weld joint air-tight detection device and air-tightness detection method

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120530

Termination date: 20120828