CN110146020A - Device based on three-coordinates measuring machine and CCD high efficiency measurement cylinder dimensions - Google Patents
Device based on three-coordinates measuring machine and CCD high efficiency measurement cylinder dimensions Download PDFInfo
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- CN110146020A CN110146020A CN201910525251.4A CN201910525251A CN110146020A CN 110146020 A CN110146020 A CN 110146020A CN 201910525251 A CN201910525251 A CN 201910525251A CN 110146020 A CN110146020 A CN 110146020A
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- measuring machine
- ccd
- coordinates measuring
- station
- high efficiency
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
- G01B11/005—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates coordinate measuring machines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a kind of device for measuring cylinder dimensions based on three-coordinates measuring machine and CCD high efficiency, device is made of three-coordinates measuring machine, optical system, multistation auxiliary system, computer information processing and control system；Some sparse points are drawn on measured cylinder, carry out positioning using three-coordinates measuring machine and CCD industrial camera is moved to the surface of cylinder, whole system is demarcated, cylinder is shot, in real time by image transmitting to computer.The present invention is detected using CCD industrial camera, is that a kind of automatic detection system that detection speed is exceedingly fast has the characteristics that measurement accuracy height, measurement efficiency are high, the gradually detection suitable for high-volume part.
Description
Technical field
The present invention relates to the two dimensional size measurement fields of photoelectricity technical field of visual measurement, especially cylinder, specifically base
In the device of three-coordinates measuring machine and CCD high efficiency measurement cylinder dimensions.
Background technique
With the development of automobile production process automation level monitoring and the raising of car mass, automobile zero is increasingly required
The intellectually and automatically of part processing and detection process improves labor productivity with this, creates bigger economic benefit；Inspection
The relative dimensions tested in cylinder production process also become an important link for improving car mass.Cylinder is examined at present
The method of relative dimensions also rests on traditional manual stage by instruments such as micrometer, bore gauges；Although occurring some
Measuring instrument, such as three coordinate measuring machine, but measurement efficiency is relatively low, after mainly passing through the position coordinates for measuring multiple points,
Further according to the spatial value of these points, size to be measured and Form and position error are found out by mathematical operation；Traditional measurement mode and one
As measuring instrument have many places to be improved, and how to design a kind of automatic detection system that detection speed is exceedingly fast is
The main problem that those skilled in the art are studied at present.
Summary of the invention
Insufficient aspect in view of the foregoing background, the purpose of the present invention is to provide one kind to be based on three-coordinates measuring machine
With the device of CCD high efficiency measurement cylinder dimensions.In order to realize said effect, the present invention design based on three-coordinates measuring machine and
CCD high efficiency measures the device of cylinder dimensions, including three-coordinates measuring machine, optical system, multistation auxiliary system, trusted computer
Breath processing and control system.
The optical system by the flexible coupling that is connected to immediately below Z-direction main shaft, with the flexible coupling immediately below
Connected CCD industrial camera, it is solid with the light source of the annular light source, stationary annular light source that are connected immediately below the CCD industrial camera
Determine frame and strip source composition.
The multistation auxiliary system is in the lower section of optical system, by light transmission positioning disk, cushion block, precision rotating platform, watches
Take motor form；The loading station being along the circumferential direction sequentially distributed, stock station, detection are provided with above the light transmission positioning disk
Station, unloading station, the cushion block and light transmission positioning disk are embedded on precision rotating platform, and the precision rotating platform is by servo motor
Drive its rotation.
The computer information processing and control system are by PLC controller and the high-performance computer with storage and analysis
It forms and is mounted on workbench；The CCD industrial camera is electrically connected with PLC controller with servo motor, the PLC control
Device processed is connected to the high-performance computer with storage and analysis.
The light transmission positioning disk is made of the hard glass material of high light transmittance；The loading station, stock station, detection
It is separated between station, unloading station with barn door；Strip source is installed immediately below the cylinder.
As described above, beneficial effect provided by the present invention is: drawing some sparse points on measured cylinder, pass through
Device designed by the present invention based on three-coordinates measuring machine and CCD high efficiency measurement cylinder dimensions, CCD industrial camera is mobile
To the surface of cylinder, whole system is positioned and is demarcated, the shooting for promoting the circulation of qi cylinder profile of going forward side by side in real time gives image transmitting
Computer；Have the characteristics that measurement accuracy is high, measurement efficiency is high, the gradually detection suitable for high-volume part.
Detailed description of the invention
Fig. 1 is the device of the invention structural schematic diagram.
Fig. 2 is present invention cylinder schematic diagram to be detected.
Specific embodiment
In order to clearly illustrate the desired effect realized, technological means and creation characteristic of the invention, below with reference to this
Attached drawing in inventive embodiments, is fully described by technical solution of the present invention, it is clear that any structure in the present embodiment
Feature and technical solution do not limit protection category of the invention.As shown in the picture, design of the invention based on three coordinates survey
The device for measuring instrument and CCD high efficiency measurement cylinder dimensions mainly includes three-coordinates measuring machine, optical system, multistation auxiliary system
System, computer information processing and control system.Before measurement starts, some sparse points are drawn on measured cylinder, described three
Quakeproof bracket (1) is equipped with below coordinate measuring apparatus, three-coordinates measuring machine and CCD main body, can be with by connection shell (10) linkage
By connection shell (10), in X, mobile and traveller (8) sliding on Y-direction crossbeam (3) on crossbeam (9) drives column (11) in work
Make to move on platform (17), to realize that CCD is adjusted in the position of X, Y-direction, and measures the coordinate of cylinder location.
The optical system is joined by the flexible coupling (13) being connected to immediately below Z-direction main shaft (12) with the flexibility
CCD industrial camera (15) connected immediately below device (13) is tied, with the annular light source being connected immediately below the CCD industrial camera (15)
(16), the light source fixing frame (14) of stationary annular light source (16) and strip source (2) composition.Adjusting can be passed through in measurement process
Annular light source (16) and strip source (2) control polishing position and intensity, keep the external light source minimum to the interference of shooting image
Change.
The multistation auxiliary system is in the lower section of optical system, by light transmission positioning disk (6), cushion block (5), accurate time
Turntable (4), servo motor (18) composition；The light transmission positioning disk (6) is provided with the charging being along the circumferential direction sequentially distributed above
Station (23), stock station (21), detection station (22), unloading station (24), the cushion block (5) and light transmission positioning disk (6) are equal
It is embedded on precision rotating platform (4), which drives its rotation by servo motor (18)；During operation of the device, lead to
It crosses servo motor (18) driving precision rotating platform (4) not stop to rotate, makes the loading station (23), stock station (21), inspection
Survey station (22), unloading station (24) is sequentially located at immediately below CCD industrial camera (15)；Using three-coordinates measuring machine to entire system
System is demarcated, while the running parameter of CCD industrial camera (16) is arranged, and high-performance computer issues instruction starting optical system
System, industrial camera CCD is to the tested cylinder shooting multiple image in detection station and real-time Transmission is to high-performance computer.
The computer information processing and control system is by PLC controller (19) and the high-performance with storage and analysis
Computer (20) is formed and is mounted on workbench (17)；The CCD industrial camera (15) and servo motor (18) are and PLC
Controller (19) electrical connection, the PLC controller (19) are connected to the high-performance computer (20) with storage and analysis.It has marked
Fixed CCD industrial camera (15) shoots multiple image to cylinder (7), and in real time by image transmitting to computer, shooting terminates PLC control
Device processed just issues instruction control servo motor movement, and the cylinder to be measured for station of stocking up is moved in detection station, is thus repeated
Above step calculates the size of cylinder according to the image data information of acquisition；Using the method for thering is selection to protect edge-smoothing filtering
Noise-removed filtering processing is carried out to picture；Threshold image segmentation and Canny edge detection algorithm is taken to scheme automatically using maximum variance
It is partitioned into the position to be measured as in, and finds its boundary；Pixel edge is clicked through using Lagrange polynomial interpolation
The subdivision of row sub-pix, obtains more accurate image border, improves the precision of detection system；Using round least square fitting method
Come determine A, B, C, D circle the center of circle and its radius, the fitting a straight line side of Y1, Y2 are found out using the least square fitting method of straight line
Journey can find out to the distance between straight line formula the length of L1, L5 using point, using the range formula of point-to-point transmission find out L2, L3,
The length of L4；The deviation from circular from of cylinder is calculated using minimum two-multiply law, i.e. deviation from circular from can be by sub-pix match point to the center of circle
Maximum distance and the difference of minimum range obtain.
The light transmission positioning disk (6) is made of the hard glass material of high light transmittance；The loading station (23), stock
Station (21), detection station (22), unloading station are separated between (24) with barn door；It installs the underface of the cylinder (7)
There are strip source (2).In addition, the upper and lower equal nouns of locality involved by the present invention are only intended in the structural schematic diagram of attached drawing
Mutual alignment definition between components, is intended merely to more clearly expression technology scheme, the noun of locality of the invention and any attached
Icon note should be not restricted to the described embodiments.Basic functional principle of the invention and scheme feature described above, current row
The professional technician of industry should be recognized that, it is clear that the details that the present invention is not limited to the above embodiments, without prejudice to think of of the invention
Want that the present invention can carry out various changes and modifications under conditions of essential characteristic, can realize in any way of the invention pre-
The effect of phase, these changes and improvements are all within the scope of the claimed invention.
Claims (5)
1. a kind of device based on three-coordinates measuring machine and CCD high efficiency measurement cylinder dimensions, it is characterised in that: it mainly includes
Three-coordinates measuring machine, optical system, multistation auxiliary system, computer information processing and control system.
2. a kind of device based on three-coordinates measuring machine and CCD high efficiency measurement cylinder dimensions according to claim 1,
Be characterized in that: the optical system is by the flexible coupling (13) that is connected to immediately below Z-direction main shaft (12), with the flexibly jointed chain
Connected CCD industrial camera (15) immediately below device (13), with the annular light source being connected immediately below the CCD industrial camera (15)
(16), the light source fixing frame (14) of stationary annular light source (16) and strip source (2) composition.
3. a kind of device based on three-coordinates measuring machine and CCD high efficiency measurement cylinder dimensions according to claim 1,
Be characterized in that: the multistation auxiliary system is in the lower section of optical system, by light transmission positioning disk (6), cushion block (5), accurate time
Turntable (4), servo motor (18) composition；The light transmission positioning disk (6) is provided with the charging being along the circumferential direction sequentially distributed above
Station (23), stock station (21), detection station (22), unloading station (24), the cushion block (5) and light transmission positioning disk (6) are equal
It is embedded on precision rotating platform (4), which drives its rotation by servo motor (18).
4. a kind of device based on three-coordinates measuring machine and CCD high efficiency measurement cylinder dimensions according to claim 1,
Be characterized in that: the computer information processing and control system are by PLC controller (19) and the high-performance with storage and analysis
Computer (20) is formed and is mounted on workbench (17)；The CCD industrial camera (15) and servo motor (18) are and PLC
Controller (19) electrical connection, the PLC controller (19) are connected to the high-performance computer (20) with storage and analysis.
5. a kind of device based on three-coordinates measuring machine and CCD high efficiency measurement cylinder dimensions according to claim 3,
Be characterized in that: the light transmission positioning disk (6) is made of the hard glass material of high light transmittance；The loading station (23), stock
Station (21), detection station (22), unloading station are separated between (24) with barn door；It installs the underface of the cylinder (7)
There are strip source (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910525251.4A CN110146020A (en) | 2019-06-17 | 2019-06-17 | Device based on three-coordinates measuring machine and CCD high efficiency measurement cylinder dimensions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910525251.4A CN110146020A (en) | 2019-06-17 | 2019-06-17 | Device based on three-coordinates measuring machine and CCD high efficiency measurement cylinder dimensions |
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| Publication Number | Publication Date |
|---|---|
| CN110146020A true CN110146020A (en) | 2019-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910525251.4A Pending CN110146020A (en) | 2019-06-17 | 2019-06-17 | Device based on three-coordinates measuring machine and CCD high efficiency measurement cylinder dimensions |
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| CN (1) | CN110146020A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022252626A1 (en) * | 2021-06-01 | 2022-12-08 | 江苏优直智能科技有限公司 | Automatic image detector |
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| CN101387495A (en) * | 2008-10-23 | 2009-03-18 | 天津大学 | Cylinder liner intelligent detection device |
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| CN102854067A (en) * | 2012-10-10 | 2013-01-02 | 李洪普 | Multi-working-position compressive testing machine for bulbs |
| CN202757587U (en) * | 2012-08-29 | 2013-02-27 | 苏州逸美德自动化科技有限公司 | Space dimension measuring apparatus based on multi-CCD |
| JP5561109B2 (en) * | 2010-11-09 | 2014-07-30 | 株式会社デンソー | Apparatus and method for measuring three-dimensional dimensions |
| CN105403156A (en) * | 2016-01-07 | 2016-03-16 | 杭州汉振科技有限公司 | Three-dimensional measuring device and data fusion calibration method for three-dimensional measuring device |
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2019
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Patent Citations (8)
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| CN101387495A (en) * | 2008-10-23 | 2009-03-18 | 天津大学 | Cylinder liner intelligent detection device |
| JP5561109B2 (en) * | 2010-11-09 | 2014-07-30 | 株式会社デンソー | Apparatus and method for measuring three-dimensional dimensions |
| CN202599371U (en) * | 2012-01-13 | 2012-12-12 | 广东工业大学 | Measuring device based on integration of vision sensor and three-coordinate measuring machine |
| CN202757587U (en) * | 2012-08-29 | 2013-02-27 | 苏州逸美德自动化科技有限公司 | Space dimension measuring apparatus based on multi-CCD |
| CN102854067A (en) * | 2012-10-10 | 2013-01-02 | 李洪普 | Multi-working-position compressive testing machine for bulbs |
| CN105403156A (en) * | 2016-01-07 | 2016-03-16 | 杭州汉振科技有限公司 | Three-dimensional measuring device and data fusion calibration method for three-dimensional measuring device |
| CN207580824U (en) * | 2017-11-23 | 2018-07-06 | 东莞市沃锐电子有限公司 | Band DC micro USB electric property automatic checkout equipments |
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Cited By (1)
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| WO2022252626A1 (en) * | 2021-06-01 | 2022-12-08 | 江苏优直智能科技有限公司 | Automatic image detector |
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