CN2767957Y - Device for measuring axis parts flexural deformation plane array CCD - Google Patents
Device for measuring axis parts flexural deformation plane array CCD Download PDFInfo
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- CN2767957Y CN2767957Y CN 200520053388 CN200520053388U CN2767957Y CN 2767957 Y CN2767957 Y CN 2767957Y CN 200520053388 CN200520053388 CN 200520053388 CN 200520053388 U CN200520053388 U CN 200520053388U CN 2767957 Y CN2767957 Y CN 2767957Y
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Abstract
The utility model relates to a device for measuring part flexural deformation, particularly a device for measuring axis part flexural deformation plane array CCD, which comprises an image collecting and processing system and a rotation control system for measured axis parts, wherein the image collecting and processing system and the rotation control system for measured axis parts are concentrated on a machine frame (10) of a straightener. The image collecting and processing system comprises a plane array CCD (13), a backlight source (15), an I/O card (6) and an industrial computer (4), and the rotation control system for measured axis parts comprises a transfer case (8), a stepping motor (12) and an encoder (11). The utility model has the advantages of high precision for measuring the axis part flexural deformation, high measuring speed and simple measuring device; needful components can be bought in markets, and the whole device is easy to realize.
Description
Technical field
The utility model relates to a kind of workpiece bending deformed measurement mechanism, especially axial workpiece bending deformed planar array CCD measurement mechanism.
Background technology
In the machine-building process, axial workpiece all can produce flexural deformation after cut or thermal treatment, and the flexural deformation that the alignment axial workpiece produces is important procedure in the mechanical processing process.High-precision alignment both can reduce allowance for finish, the rate of also can reducing the number of rejects and seconds.Diastrophic measuring method and measuring accuracy are the keys of alignment axial workpiece.Straightener mainly is exactly the alignment processing that is used for finishing axial workpieces such as axle, pipe, rod.The straightener detection system should be able to accurately detect the bending deformation quantity and the deformation position of axial workpiece, for alignment processing provides foundation.Present accurate straightener detection system generally adopts multichannel displacement detection method, promptly along several displacement transducers of axial installation of part, drive part with axial drive means and rotate a circle, meanwhile, each sensor detects the contour curve data in cross section separately online.These data are sent, are sent into computing machine after the processing such as filtering, amplification through change, try to achieve the actual home position in each cross section by minimum two-multiply law, utilize interpolation algorithm to describe out the axis bending situation of part again.But there is the factor that has a strong impact on accuracy of detection in this straightener detection system, and is non-linear as sensor performance, direction judgement, residual voltage at zero and transmission circuit.The solution of gathering is by gathering selected sensor in circuit, preferred excited frequency, measures such as design ideal diode circuit at present.But such straightener detection system is owing to only adopt limited several position sensor directly to contact with part, belong to a contact measurement, stochastic error is big, the measuring accuracy instability, absolute error generally is greater than 0.01mm, can not satisfy high-accuracy axial workpiece and detect requirement.In addition, it can not realize non-contact detecting and omnidistance the detection this system, can not satisfy the needs of high-acruracy survey and alignment.
The utility model content
For overcome above-mentioned multiple sensor displacement detection method exist check point few, with detection method defectives such as tested part contacts and the not high problem of consequent measuring accuracy, the utility model is introduced a kind of area array CCD (Charge Coupled Devices, charge-coupled image sensor) axial workpiece bending deformed device of cooperative.
CCD in the development of picture induction application facet has rapidly become one of emerging field active, the most fruitful in modern optical electronics and the modern surveying technology.The CCD volume is little, and is in light weight, and power consumption is little, low and anti-the burning of operating voltage, and at resolving power, dynamic range, sensitivity, the superior performance of aspects such as real-time Transmission and self-scanning.But during as the object of large-sizes such as axial workpiece, the problem of resolving power and pixel value is appearring with the CCD precision measurement.Photograph the larger area object with wanting high resolution, need very big pixel value, CCD does not on the market still satisfy requirement at present.Most Vision Builder for Automated Inspection is used line array CCD to add mechanical scanning mechanism camera and is obtained image.The advantage of line array CCD is the resolving power height, but this method measuring speed is fast inadequately, can not satisfy industrial application requirements during on-line measurement, and the equipment more complicated needs scan control circuit, drives connecting gear etc. simultaneously.Mechanism drives the speed of cam movement and the necessary strict synchronism of frequency of CCD self-scanning line feed pulse in addition.Therefore, this adaptation of methods is strong inadequately.
Even but yet do not report with the diastrophic method of Parts Measurement by using line array CCD to obtain the testee image, do not retrieve relevant patented technology yet.
The utility model is to overcome on the basis that utilizes line array CCD to obtain testee image shortcoming, proposes to utilize the flexural deformation of area array CCD Parts Measurement.The speed that area array CCD obtains the testee two-dimensional signal improves greatly, need not scan control circuit, drives connecting gear etc., and equipment is simple relatively, and measuring speed improves.Principle of the present utility model is to utilize area array CCD to gather the characteristics that tested part image and each sub-picture have certain-length fast, all outer profile images of axle that use image reconstruction and Duo Tu splicing to gather are realized seamless link in order, the application image disposal route is depicted the complete axial line that can represent the bending shaft distortion again, calculate the flexural deformation parameter, for alignment provides the exact figure foundation.
The view data of axial workpiece of the present utility model is gathered by at least one area array CCD, and after the view data of being gathered was sent to the I/O card, the input industrial computer after industrial computer is handled described view data, was exported described axial workpiece deformation parameter then.Device of the present utility model comprises image acquisition and disposal system, tested axial workpiece rotation control system; Image acquisition and disposal system and tested axial workpiece rotation control system all concentrate on the straightener frame (10).Described image acquisition and disposal system comprise area array CCD, tested axial workpiece, backlight, I/O card, industrial computer composition, area array CCD and backlight lay respectively at tested axial workpiece both sides, area array CCD links to each other with the I/O card by signal wire, and I/O card and industrial computer join; Tested axial workpiece rotation control system comprises wheel box, stepper motor, scrambler, and described wheel box one end joins by top and tested axial workpiece, and the other end and stepper motor join, and stepper motor also links to each other with scrambler.Area array CCD joins with ball screw assembly,, also it links to each other along the stepper motor that measured axis class part axial moves described ball screw assembly, with control.
During measurement, when axial workpiece rotated by certain five equilibrium angle under the effect of control motor vertically, area array CCD was also made the outer profile image of gun and continuous acquisition axle vertically under the control motor-driven.To the outer profile image sequence of the axle of each anglec of rotation, all gather corresponding angle position by the scrambler of control on the motor, constitute one group of corresponding relation data and send into industrial computer.And axle outer profile image data synchronous detection behind image reconstruction of gathering the radial beat eccentricity and the home position in each measured axis cross section.
Can require and the design of part feature according to accurate straightener detection system, to one or more CCD are installed, circumferentially turn round the drive unit drives part in the testing process and rotate a circle along workpiece spindle.The CCD that installs in each circumferential detection position, fast moving continuous acquisition image vertically, synchronous detection goes out the radial beat eccentricity and the home position in each measured axis cross section after the image amalgamation.So rotate a circle, compare by analysis again, the axial bending situation of calculating and definite whole part.
Advantage of the present utility model:
1, area array CCD obtains tested axial workpiece bending deformed data speed height, need not scan control circuit, drives connecting gear etc., and equipment is simple relatively, and measuring speed is fast.
2, the suitable tested shaft part size scope of measuring system is big.
3, measuring system adopts full-scale scope non-cpntact measurement to tested axial workpiece, and the measuring accuracy height can reach 0.001mm.
4, measurement mechanism is simple, and required parts all can buy on the market.
Description of drawings
Fig. 1 is an axial workpiece bending deformed planar array CCD measurement mechanism structural representation.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1
As shown in Figure 1, the axial workpiece of surveying is a major axis, and major axis distortion area array CCD measurement mechanism is made up of image acquisition and disposal system, tested major axis rotation control system; Image acquisition and disposal system and tested axial workpiece rotation control system are by on the straightener frame 10.Image acquisition and disposal system comprise area array CCD 13, tested axial workpiece 14, backlight 15, I/O card 6, industrial computer 4.Area array CCD 13 links to each other with I/O card 6 by signal wire, and I/O card 6 joins with industrial computer 4; Tested major axis is supporting by top 3 and top 7, and tailstock 2 is fixed on the straightener frame 10 with wheel box 8, and area array CCD 13 and backlight 15 are placed on tested bucket step axle both sides respectively.Area array CCD 13 is connected with stepper motor 9, is positioned on the ball screw assembly, 5, and stepper motor 9 drives ball screw assembly, 5 along tested major axis axially-movable.Tested major axis rotation control system is made up of wheel box 8, stepper motor 12, scrambler 11, and wheel box 8 one ends join with tested major axis 14 by top 7, and the other end and stepper motor 12 join, and stepper motor 12 also links to each other with scrambler 11.When stepper motor 12 drive wheel boxes 8 turned round tested major axis 14, behind every rotation 10 degree, stepper motor 9 drive surface battle array CCD13 are fast moving continuous acquisition view data vertically.Scrambler 11 links to each other with stepper motor 12 main shafts through shaft coupling, measures the anglec of rotation and position thus.The consecutive image sequence and the data such as the anglec of rotation and position of area array CCD 13 fast moving collection vertically are transported to industrial computer 4 by I/O card 6, carry out radial beat eccentricity and the home position that synchronous detection behind the image reconstruction goes out each measured axis cross section by industrial computer 4.The image processing techniques of industrial computer is the edge image that the multiscale analysis technology of employing wavelet transformation extracts different edge directions, adopts Mathematical Morphology Method to carry out image mosaic again.So rotate a circle, compare by analysis again, the axial bending situation of calculating and definite whole part.
Embodiment 2
Tested axial workpiece is three step axial workpieces.On each step, use an area array CCD, use 3 area array CCDs 13 to join with ball screw assembly, 5 respectively altogether, 3 ball screw assembly,s 5 all link to each other with support 1, also join simultaneously with stepper motor 9, stepper motor 9 drives 3 area array CCDs 13 along tested three step axial workpiece axially-movables, the different diameter of axle view data of continuous acquisition.Other device is with embodiment 1, and measuring method is also with embodiment 1.
Claims (2)
1, a kind of axial workpiece bending deformed planar array CCD measurement mechanism is characterized in that: described device comprises image acquisition and disposal system, tested axial workpiece rotation control system; Described image acquisition and disposal system are by area array CCD (13), backlight (15), I/O card (6), industrial computer (4), described area array CCD (13) and backlight (15) lay respectively at tested axial workpiece (14) both sides, area array CCD (13) links to each other with I/O card (6) by signal wire, and I/O card (6) joins with industrial computer (4); Tested axial workpiece rotation control system comprises wheel box (8), stepper motor (12), scrambler (11) composition, described wheel box (8) one ends join by top (7) and tested axial workpiece (14), the other end and stepper motor (12) join, and stepper motor (12) also links to each other with scrambler (11); Described image acquisition and disposal system and tested axial workpiece rotation control system concentrate on the straightener frame (10).
2, according to the described a kind of axial workpiece bending deformed planar array CCD measurement mechanism of claim 1, it is characterized in that: described area array CCD (13) also joins with ball screw assembly, (5), and described ball screw assembly, (5) also links to each other with stepper motor (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520053388 CN2767957Y (en) | 2005-01-04 | 2005-01-04 | Device for measuring axis parts flexural deformation plane array CCD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520053388 CN2767957Y (en) | 2005-01-04 | 2005-01-04 | Device for measuring axis parts flexural deformation plane array CCD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2767957Y true CN2767957Y (en) | 2006-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520053388 Expired - Fee Related CN2767957Y (en) | 2005-01-04 | 2005-01-04 | Device for measuring axis parts flexural deformation plane array CCD |
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| CN (1) | CN2767957Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115560A (en) * | 2011-11-16 | 2013-05-22 | 昆山鑫昌泰模具科技有限公司 | Shaft part distortion detection device |
| CN105241398A (en) * | 2015-10-20 | 2016-01-13 | 中国科学院沈阳自动化研究所 | Non-contact full-automatic shell body coaxiality detection device |
| CN106370122A (en) * | 2016-09-28 | 2017-02-01 | 重庆圣巴巴拉实业有限公司 | Hub rotary bending test device |
| CN107631702A (en) * | 2017-09-15 | 2018-01-26 | 广东工业大学 | A kind of non-contact type rotary shaft coaxiality error detection method and device |
| CN108120375A (en) * | 2017-12-22 | 2018-06-05 | 株洲硬质合金集团有限公司 | A kind of cylinder bar Linearity surveying method and its application system |
| CN108180869A (en) * | 2017-12-26 | 2018-06-19 | 西安交通大学 | A kind of axis and shaft parts straightness intelligent measurement school shape equipment |
| CN111001681A (en) * | 2019-12-30 | 2020-04-14 | 江苏罡阳股份有限公司 | Coaxiality automatic detection and deviation rectification mechanism based on magnetic flux change |
| CN111060036A (en) * | 2020-01-16 | 2020-04-24 | 苏州灵猴机器人有限公司 | Device for detecting straightness of cylinder |
| CN112344871A (en) * | 2020-11-18 | 2021-02-09 | 中冶赛迪工程技术股份有限公司 | Deformation detection system and deformation detection method for temperature measurement sampling probe gun |
| CN115921594A (en) * | 2022-12-15 | 2023-04-07 | 山东沃尔鑫机械有限公司 | 500 ton-level automatic intelligent shape correction equipment |
| CN117564131A (en) * | 2024-01-17 | 2024-02-20 | 海顿直线电机(常州)有限公司 | Motor screw straightening method based on visual detection control system |
-
2005
- 2005-01-04 CN CN 200520053388 patent/CN2767957Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115560A (en) * | 2011-11-16 | 2013-05-22 | 昆山鑫昌泰模具科技有限公司 | Shaft part distortion detection device |
| CN105241398A (en) * | 2015-10-20 | 2016-01-13 | 中国科学院沈阳自动化研究所 | Non-contact full-automatic shell body coaxiality detection device |
| CN105241398B (en) * | 2015-10-20 | 2017-08-25 | 中国科学院沈阳自动化研究所 | A kind of noncontact body axiality fully-automated synthesis equipment |
| CN106370122B (en) * | 2016-09-28 | 2019-09-06 | 重庆圣巴巴拉实业有限公司 | Wheel hub rotary bending experimental rig |
| CN106370122A (en) * | 2016-09-28 | 2017-02-01 | 重庆圣巴巴拉实业有限公司 | Hub rotary bending test device |
| CN107631702A (en) * | 2017-09-15 | 2018-01-26 | 广东工业大学 | A kind of non-contact type rotary shaft coaxiality error detection method and device |
| CN108120375A (en) * | 2017-12-22 | 2018-06-05 | 株洲硬质合金集团有限公司 | A kind of cylinder bar Linearity surveying method and its application system |
| CN108180869B (en) * | 2017-12-26 | 2020-03-31 | 西安交通大学 | Intelligent detection and shape correction equipment for straightness of shaft rod parts |
| CN108180869A (en) * | 2017-12-26 | 2018-06-19 | 西安交通大学 | A kind of axis and shaft parts straightness intelligent measurement school shape equipment |
| CN111001681A (en) * | 2019-12-30 | 2020-04-14 | 江苏罡阳股份有限公司 | Coaxiality automatic detection and deviation rectification mechanism based on magnetic flux change |
| CN111060036A (en) * | 2020-01-16 | 2020-04-24 | 苏州灵猴机器人有限公司 | Device for detecting straightness of cylinder |
| CN112344871A (en) * | 2020-11-18 | 2021-02-09 | 中冶赛迪工程技术股份有限公司 | Deformation detection system and deformation detection method for temperature measurement sampling probe gun |
| CN115921594A (en) * | 2022-12-15 | 2023-04-07 | 山东沃尔鑫机械有限公司 | 500 ton-level automatic intelligent shape correction equipment |
| CN115921594B (en) * | 2022-12-15 | 2023-11-03 | 山东沃尔鑫机械有限公司 | 500 ton-level automatic intelligent shape correction equipment |
| CN117564131A (en) * | 2024-01-17 | 2024-02-20 | 海顿直线电机(常州)有限公司 | Motor screw straightening method based on visual detection control system |
| CN117564131B (en) * | 2024-01-17 | 2024-04-02 | 海顿直线电机(常州)有限公司 | Motor screw straightening method based on visual detection control system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |