CN105387817A - Device for rapidly detecting size parameters of cylinder type excircle shape - Google Patents

Device for rapidly detecting size parameters of cylinder type excircle shape Download PDF

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Publication number
CN105387817A
CN105387817A CN201510873484.5A CN201510873484A CN105387817A CN 105387817 A CN105387817 A CN 105387817A CN 201510873484 A CN201510873484 A CN 201510873484A CN 105387817 A CN105387817 A CN 105387817A
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CN
China
Prior art keywords
groove
measured workpiece
servomotor
circular
detected workpiece
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201510873484.5A
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Chinese (zh)
Inventor
刘斌
陈啸风
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SICHUAN LINGFENG AERO HYDRAULIC MACHINERY Co Ltd
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SICHUAN LINGFENG AERO HYDRAULIC MACHINERY Co Ltd
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Priority to CN201510873484.5A priority Critical patent/CN105387817A/en
Publication of CN105387817A publication Critical patent/CN105387817A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical means
    • G01B11/02Measuring arrangements characterised by the use of optical means for measuring length, width or thickness
    • G01B11/04Measuring arrangements characterised by the use of optical means for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
    • G01B11/046Measuring arrangements characterised by the use of optical means for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring width
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical means
    • G01B11/26Measuring arrangements characterised by the use of optical means for measuring angles or tapers; for testing the alignment of axes

Abstract

The invention discloses a device for rapidly detecting size parameters of a cylinder type excircle shape, and aims at providing the rapid detection device simple in structure, high in measuring efficiency and capable of improving the measuring precision. A CCD camera (5) whose lens just faces a clamped detected workpiece (2) is arranged over the clamped detected workpiece, the CCD camera (5) collects images of the clamped detected workpiece which is driven by a servo motor to rotate, the collected calibration position size of each groove is converted into a digital signal, the digital signal is transmitted to a circular grating (4) fixed on a main shaft of the servo motor, the angular displacement of the detected workpiece, namely a moving object, is obtained, a linear array photosensitive tube calculates the position size of each groove via a computer image processing software system input by a reading head device, parameters including the width, the position accuracy and the verticality of the calibration groove of the detected workpiece are displayed and printed. The device can be used to overcome the disadvantages that errors of manual measurement influence test results a lot and cause low measuring efficiency.

Description

The device of quick detection cylinder class outer circular shape dimensional parameters
Technical field
The present invention relates in a kind of device, particularly machining of quick detection cylinder class outer circular shape dimensional parameters, Cylinder Parts cylindrical adds the groove width size of multiple indexing trough, the position degree of groove and the device for fast detecting of verticality.
Background technology
The part that cylinder class outer circular shape comprises dimensional parameters key element is a lot, and its planform is different, and the coaxiality error that design proposes requires also different.Detection technique in machining can be divided into on-line checkingi according to its mode difference, add and detect break and detect after processing.Test item in machining mainly comprises: the size of workpiece, shape and surfaceness.Be machining manufacture and a kind of structure type common in detecting at field of machining valve pocket, spool, belong to difficulty of processing large, kind and quantity polycylindser class part.Cylinder Parts valve pocket, spool are in trial-production, batch product, cylindrical adds the groove width size of multiple indexing trough, the position degree of groove and a verticality, element to be measured relates to form tolerance-linearity, flatness, circularity, cylindrical form or position of related features-Line contour degree, surface profile orienting station tolerance-depth of parallelism, verticality, degree of tilt position location tolerance-right alignment, symmetry, position degree beat-radial, oblique, Circular Run-out Tolerance, the various parameters in radial, end surface full jumping.Because the change of cylinder class outer circular shape measured parameter is by the restriction in space, in measuring process, require that each contact point of measuring is all at the outside diameter peak on the face of cylinder, does not allow to occur departing from.Together with the physical location of position of related features and form tolerance, part element to be measured, direction are always closely connected with its true form.For the purpose of easy to operate, no matter measure with receiver ga(u)ge inspection or with instruction formula weight instrument, generally all direct contour surface in measured key element carries out.So site error is the resultant effect that physical location and true form produce, in the site error namely recorded, contain shape error.All the time, prior art, in order to address these problems, is all measure valve pocket, spool parameter on common universal tool-measuring microscope, adopts manually aiming, reading, calculating.The weak point of this mode is that survey crew workload is large, artificial measuring error has considerable influence to test result, measure the shortcomings such as efficiency is low, and, the product processed assembly qualified rate is very low, and interchangeability is poor, in order to solve Product processing and measure bottleneck, for this reason, one is proposed about spool, valve pocket parameter automatic detection apparatus.
Summary of the invention
The object of the invention is the weak point existed for prior art, there is provided that a kind of structure is simple, to measure efficiency high, can improve on cylindrical and add multiple indexing trough Cylinder Parts groove width size, the position degree of groove and a device for fast detecting for squareness measurement precision.
The present invention solves the technical scheme that its problem adopts: a kind of device of quick detection cylinder class outer circular shape dimensional parameters, comprise: be fixed on the servomotor support on workbench, symmetrical in opposite directions servomotor is top, the top bearing of coaxial cable clamping measured workpiece 2, it is characterized in that: above clamping measured workpiece 2, be provided with camera lens just to the ccd video camera 5 of clamping measured workpiece 2, the image of the clamping measured workpiece 2 that ccd video camera 5 rotates under being captured in driven by servomotor, the indexing position size of each groove collected is transferred on the Circular gratings 4 connected firmly on servomotor spindle, phase order optical reference zero-bit, Circular gratings 4 light source becomes directional light through light path system, be incident upon on the moving grid of Circular gratings 4 indication grating and the fixed grid of scale grating, during measurement, servomotor spindle rotarily drives moving grid and rotates together, through light formed Moire fringe, linear array photosensitive tube detects the light signal that transmission is come, export near sinusoidal voltage signal, this signal is through amplifying, shaping, pulse signal is formed after differentiating circuit, umber of pulse total in gage work process, obtain the angular displacement of measured workpiece 2 moving object, linear array photosensitive tube sends into by read head device the position dimension that Computer Image Processing software systems calculate each groove, show and print the groove width size of the indexing trough of measured workpiece 2, the position degree of groove and verticality parameter.
The present invention has following beneficial effect compared to prior art,
The present invention is directed on spool valve pocket, Cylinder Parts cylindrical and add the groove width size of multiple indexing trough, the position degree of groove and a verticality, adopt the CCD camera technique of current advanced person, by the observing and controlling of computing machine high-precision rotary, Circular gratings automatic gauge angle, computer image processing technology, in conjunction with measured workpiece type and pending error pattern, automatically data processing technique is carried out, quick detection Cylinder Parts cylindrical adds the groove width size of multiple indexing trough, the position degree of groove and a verticality, improve measuring accuracy and measure efficiency.Adopt servomotor moving object to rotarily drive moving grid to rotate together, and the standard machinery structure that fixed grid is motionless, the change of size is converted to the change of inductance value, without driving error, complete the automatic detection of spool valve pocket parameter, structure is simple, the size of workpiece measured all the time by measurement mechanism, and its size changing amount is passed to Computer Image Processing software at any time, send signal by Computer Image Processing software again, demonstrate the groove width size of the indexing trough of measured workpiece 2, the position degree of groove and verticality parameter.Because it can make operating personnel without the need to shutting down just energy measuring workpieces; can quickly and accurately to workpiece calibration; decrease labour intensity; improve production efficiency, reduce rejection rate, the workpiece size consistance simultaneously processed is higher; solve artificial measuring error to the large impact of test result; measure the shortcomings such as efficiency is low, and the product processed assembly qualified rate is high.
Measuring accuracy is high.The digital Circular gratings angle system that the present invention adopts: resolving power is 1 second; Diameter run-out≤1.3 μm; Whole measuring system precision is better than ± and 10 seconds.High precision CCD5 pointing accuracy: five measuring repeatability error≤1 μm.With measured workpiece, five measuring repeatability error≤2 μm.Device for fast detecting of the present invention is used to contribute to the detection speed of Cylinder Parts outer circular shape dimensional parameters coaxiality error and the raising of precision.
Accompanying drawing explanation
Fig. 1 is spool, valve pocket parameter automatic detection apparatus schematic diagram
In figure: 1 workbench, 2 measured workpieces, 3 servomotor supports, 4 high accuracy circular gratings, 5CCD video camera, 6Z are top to adjusting knob, 8 anti-interference covers, 9 motor driving box, 10 Circular gratings indicators, 11 brilliance control casees, 12 computing machines, 13 front axle systems to adjusting knob, 7Y, 14 printers, 15 top bearings.
Embodiment
Consult Fig. 1.In embodiment described below, detect the device of cylinder class outer circular shape dimensional parameters fast, comprising: be fixed on the servomotor support on workbench, symmetrical in opposite directions servomotor is top, the top bearing of the measured workpiece 2 of coaxial cable clamping band shift fork.Measured workpiece 2 and Circular gratings 4 adopt and are rigidly connected.Spool or valve pocket are arranged on pulling sleeve, the other end of the measured workpiece 2 simultaneously with shift fork withstands in high precision front axle system top 13, and the driving lever on pulling sleeve is put into shift fork, and shift fork is on high accuracy circular grating 4 is top, servomotor is arranged in motor driving box 9, builds anti-interference cover 8.Rotating handwheel makes tail centre arrive correct position, uses manual operation tentatively to aim at, then starts to measure with automatic catch.Front axle system top 13 and high accuracy circular grating 4 center adjust in 1.3 μm, CCD5 is fixed on the column of workbench 1, camera lens is spent downward vertically in 1.0 μm, due to ccd video camera band coaxial light source, when the light that coaxial light source sends is radiated at piece surface, cylindrical is white, be black at bottom land, like this when through light form Moire fringe time ccd video camera just can precise acquisition to the edge of parts groove, simultaneously, Circular gratings 4 gathers Angular Dimension at this moment, the size positions of the 1st groove gathered recorded by the self-editing software of computing machine, in like manner, when parts turn is to the position of second groove, the size positions of the 2nd groove gathered recorded by the self-editing software of computing machine, calculate the position dimension of all grooves by that analogy, final COMPREHENSIVE CALCULATING obtains size and the position degree of drawing requirement measurement.
Ccd video camera 5 is arranged on the top of clamping measured workpiece 2, and ccd video camera 5 camera lens is just to the surfaces of revolution of clamping measured workpiece 2.Start image measurement software interface, after switching on power, open brilliance control case 11, adjustment Z-direction adjusting knob 6 makes the white line alignment red line on Y-direction adjusting knob 7, open grating electronic box switch, open driving electronic box, change to automatic transmission (if not at automatic catch, it is invalid then automatically to measure), now, measured workpiece 2 with shift fork rotates under the driving of servomotor 3, Circular gratings indicator 10 (the physical location angle of main display Circular gratings) and high accuracy CCD camera 5 gather the indexing position size of each groove, the position dimension of each groove is calculated by high accuracy circular grating 4, thus obtain the groove width size of indexing trough, the position degree of groove and verticality.
Measured workpiece 2 rotates under the driving of servomotor 3, high precision CCD5 gathers the indexing position size of each groove, the image of the clamping measured workpiece 2 that ccd video camera 5 rotates under being captured in driven by servomotor, the indexing position size of each groove collected is transferred on the Circular gratings 4 connected firmly on servomotor spindle, phase order optical reference zero-bit, Circular gratings 4 light source becomes directional light through light path system, is incident upon on the moving grid of Circular gratings 4 indication grating and the fixed grid of scale grating; During measurement, servomotor spindle rotarily drives moving grid and rotates together, through light formed Moire fringe, linear array photosensitive tube detects the light signal that transmission is come, export near sinusoidal voltage signal, this signal forms pulse signal after amplification, shaping, differentiating circuit, umber of pulse total in gage work process, obtain the angular displacement of measured workpiece 2 moving object, linear array photosensitive tube sends into by read head device the position dimension that computing machine 12 image processing software system-computed goes out each groove, can print workpiece calibration result on demand.Display also prints the groove width size of the indexing trough of measured workpiece 2, the position degree of groove and verticality parameter by printer 14.By this cover system add self-programmed software may be used for outside diameter φ 50mm≤cylindrical part measure.
Grating be utilize the transmission of light, optical detection device that diffraction phenomena is made, it is primarily of scale grating and grating reading head two parts composition.Usually, scale grating is fixed on (as worktable or leading screw) on the movable part of lathe, and grating reading head is arranged on (as lathe base) on the fixed part of lathe, and the two is relative movement along with the movement of worktable.In grating reading head, be installed with an indication grating, when grating reading head moves relative to scale grating, indication grating just moves on scale grating.

Claims (5)

1. one kind is detected the device of cylinder class outer circular shape dimensional parameters fast, comprise: be fixed on the servomotor support on workbench, symmetrical in opposite directions servomotor is top, the top bearing of coaxial cable clamping measured workpiece (2), it is characterized in that: in the top of clamping measured workpiece (2), be provided with camera lens just to the ccd video camera (5) of clamping measured workpiece (2), the image of the clamping measured workpiece (2) rotated under ccd video camera (5) is captured in driven by servomotor, be that digital data transmission is on the Circular gratings connected firmly on servomotor spindle (4) by the angle position size conversion of each groove collected, phase order optical reference zero-bit, Circular gratings (4) light source becomes directional light through light path system, be incident upon on the moving grid of Circular gratings (4) indication grating and the fixed grid of scale grating, during measurement, servomotor spindle rotarily drives moving grid and rotates together, through light formed Moire fringe, linear array photosensitive tube detects the light signal that transmission is come, export near sinusoidal voltage signal, this signal is through amplifying, shaping, pulse signal is formed after differentiating circuit, umber of pulse total in gage work process, obtain the angular displacement of measured workpiece (2) moving object, linear array photosensitive tube sends into Computer Image Processing software systems by read head device, calculate the position dimension of each groove, show and print the groove width size of the indexing trough of measured workpiece (2), the position degree of groove and verticality parameter.
2. the device detecting cylinder class outer circular shape dimensional parameters fast as claimed in claim 1, is characterized in that: measured workpiece (2) and Circular gratings (4) adopt and be rigidly connected.
3. the device detecting cylinder class outer circular shape dimensional parameters fast as claimed in claim 1, it is characterized in that: spool or valve pocket are arranged on pulling sleeve, the other end of the measured workpiece (2) simultaneously with shift fork withstands in high precision front axle system top (13), driving lever on pulling sleeve is put into shift fork, shift fork is on high accuracy circular grating (4) is top, and servomotor is arranged in motor driving box (9).
4. the device detecting cylinder class outer circular shape dimensional parameters fast as claimed in claim 1, is characterized in that: front axle system top (13) and Circular gratings (4) center are in 1.3 μm.
5. the device detecting cylinder class outer circular shape dimensional parameters fast as claimed in claim 1, is characterized in that: CCD5 is fixed on the column of workbench (1), and camera lens is spent downward vertically in 1.0 μm.
CN201510873484.5A 2015-12-02 2015-12-02 Device for rapidly detecting size parameters of cylinder type excircle shape Pending CN105387817A (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106197268A (en) * 2016-07-05 2016-12-07 苏州格莱威科环保科技有限公司 The detection device of a kind of motor rotor and detection method
CN106482671A (en) * 2016-09-27 2017-03-08 曲阜师范大学 Curing bag Symmetry Detection device and method
CN106524948A (en) * 2016-12-27 2017-03-22 重庆大学 UO2 pellet perpendicularity detection system and detection method thereof
CN106767420A (en) * 2017-02-13 2017-05-31 苏州迅威光电科技有限公司 A kind of apparatus and method of total powerstation vertical pivot group precision image fully-automated synthesis
CN106767469A (en) * 2016-11-29 2017-05-31 四川凌峰航空液压机械有限公司 Close as the non-contact measurement method in measurement Fine and Deep Hole class aperture
CN106868998A (en) * 2017-04-07 2017-06-20 吉林大学 The verifying attachment of round bar array vehicle-mounted road surface flaw detection system
CN106862107A (en) * 2016-12-28 2017-06-20 大连德迈仕精密科技股份有限公司 Vision automatic loading/unloading testing equipment
CN107218885A (en) * 2017-05-31 2017-09-29 江苏理工学院 A kind of cylindrical workpiece measurement apparatus and method based on hall sensor
CN107228616A (en) * 2017-06-02 2017-10-03 江苏理工学院 A kind of form and position tolerance detection means
CN107238365A (en) * 2017-05-31 2017-10-10 江苏理工学院 A kind of portable cylindrical workpiece measurement apparatus
CN107883869A (en) * 2017-10-24 2018-04-06 佛山杰致信息科技有限公司 A kind of optical measuring device of high-precision shafting running accuracy
CN108225407A (en) * 2016-12-14 2018-06-29 东华大学 Great circle machine needle cylinder detecting system and great circle machine needle cylinder detection method
CN108871250A (en) * 2018-06-28 2018-11-23 江南大学 A kind of detection fixture for the circle bounce of specific axial workpiece
CN110220547A (en) * 2019-06-06 2019-09-10 安徽捷泰智能科技有限公司 A kind of intelligent high frequency valve detection device
CN110360959A (en) * 2019-07-08 2019-10-22 东莞理工学院 A kind of vision detection system for large-scale precision axial workpiece

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106197268A (en) * 2016-07-05 2016-12-07 苏州格莱威科环保科技有限公司 The detection device of a kind of motor rotor and detection method
CN106482671A (en) * 2016-09-27 2017-03-08 曲阜师范大学 Curing bag Symmetry Detection device and method
CN106767469B (en) * 2016-11-29 2019-03-29 四川凌峰航空液压机械有限公司 Close the non-contact measurement method as measurement Fine and Deep Hole class aperture
CN106767469A (en) * 2016-11-29 2017-05-31 四川凌峰航空液压机械有限公司 Close as the non-contact measurement method in measurement Fine and Deep Hole class aperture
CN108225407A (en) * 2016-12-14 2018-06-29 东华大学 Great circle machine needle cylinder detecting system and great circle machine needle cylinder detection method
CN108225407B (en) * 2016-12-14 2020-08-04 东华大学 Circular knitting machine needle cylinder detection system and circular knitting machine needle cylinder detection method
CN106524948B (en) * 2016-12-27 2018-06-19 重庆大学 UO2Pellet system for detecting verticality and its detection method
CN106524948A (en) * 2016-12-27 2017-03-22 重庆大学 UO2 pellet perpendicularity detection system and detection method thereof
CN106862107A (en) * 2016-12-28 2017-06-20 大连德迈仕精密科技股份有限公司 Vision automatic loading/unloading testing equipment
CN106767420A (en) * 2017-02-13 2017-05-31 苏州迅威光电科技有限公司 A kind of apparatus and method of total powerstation vertical pivot group precision image fully-automated synthesis
CN106868998A (en) * 2017-04-07 2017-06-20 吉林大学 The verifying attachment of round bar array vehicle-mounted road surface flaw detection system
CN107238365A (en) * 2017-05-31 2017-10-10 江苏理工学院 A kind of portable cylindrical workpiece measurement apparatus
CN107218885A (en) * 2017-05-31 2017-09-29 江苏理工学院 A kind of cylindrical workpiece measurement apparatus and method based on hall sensor
CN107228616B (en) * 2017-06-02 2020-02-14 江苏理工学院 Form and position tolerance detection device
CN107228616A (en) * 2017-06-02 2017-10-03 江苏理工学院 A kind of form and position tolerance detection means
CN107883869A (en) * 2017-10-24 2018-04-06 佛山杰致信息科技有限公司 A kind of optical measuring device of high-precision shafting running accuracy
CN108871250A (en) * 2018-06-28 2018-11-23 江南大学 A kind of detection fixture for the circle bounce of specific axial workpiece
CN110220547A (en) * 2019-06-06 2019-09-10 安徽捷泰智能科技有限公司 A kind of intelligent high frequency valve detection device
CN110360959A (en) * 2019-07-08 2019-10-22 东莞理工学院 A kind of vision detection system for large-scale precision axial workpiece

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Application publication date: 20160309