CN107990842B - A kind of CCD cylinder outer profile detection device of self-positioning auto-focusing - Google Patents

A kind of CCD cylinder outer profile detection device of self-positioning auto-focusing Download PDF

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Publication number
CN107990842B
CN107990842B CN201711208042.4A CN201711208042A CN107990842B CN 107990842 B CN107990842 B CN 107990842B CN 201711208042 A CN201711208042 A CN 201711208042A CN 107990842 B CN107990842 B CN 107990842B
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CN
China
Prior art keywords
ccd
positioning
cylinder
positioning plate
bracket
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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.)
Expired - Fee Related
Application number
CN201711208042.4A
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Chinese (zh)
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CN107990842A (en
Inventor
彭志牛
裴景玉
庄晓舜
刘烨彬
朱烨添
武圣坤
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Shanghai Jiaotong University
Baoshan Iron and Steel Co Ltd
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Shanghai Jiaotong University
Baoshan Iron and Steel Co Ltd
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Application filed by Shanghai Jiaotong University, Baoshan Iron and Steel Co Ltd filed Critical Shanghai Jiaotong University
Priority to CN201711208042.4A priority Critical patent/CN107990842B/en
Publication of CN107990842A publication Critical patent/CN107990842A/en
Application granted granted Critical
Publication of CN107990842B publication Critical patent/CN107990842B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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 techniques
    • G01B11/24Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00Control of position or direction
    • G05D3/12Control of position or direction using feedback

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

The present invention provides a kind of CCD cylinder outer profile detection devices of self-positioning auto-focusing, including positioning plate, further include the CCD bracket, parallel-plate light source and autofocus mechanism for being set to the side of positioning plate;The upper and lower surface of CCD bracket is separately installed with symmetrically arranged CCD sliding block, CCD guide rail and CCD component;Parallel-plate light source parallel with CCD bracket is installed perpendicular to positioning plate;Electric cylinder and grating scale are installed on grating scale mounting plate;The grating reading head of grating scale is connect by connecting rod with electric cylinder, and microswitch is mounted on connecting rod;Screw mechanism is installed on the middle part of CCD bracket, and the feed screw nut of screw mechanism is connect with CCD guide rail, and the mounting plate and CCD bracket of the motor of screw mechanism are connected.The configuration of the present invention is simple is automatically positioned tested cylinder and improves measurement efficiency and measurement accuracy by the way that measurement of the different parameter realizations to different-diameter cylinder outer profile is arranged to CCD automatic focusing.

Description

A kind of CCD cylinder outer profile detection device of self-positioning auto-focusing
Technical field
The present invention relates to detection device technology fields, and in particular, to one kind can carry out self-positioning detection to tested cylinder Self-positioning auto-focusing CCD cylinder outer profile detection device.
Background technique
Side profile detection is carried out to the round tube front of production, is the particularly important step of industrial production, is that testing product is The important means of no qualification.Currently, generalling use handheld tool to detect the side profile of round tube front produced and being surveyed Amount, this measurement method is inefficient, and precision is also difficult to ensure, is unable to satisfy the demand of modern industrial production.
In order to improve measurement efficiency and obtain higher precision, this field needs design one can automatic measurement round tube front The device of side profile so that the device can be adjusted and measure automatically according to the posture of round tube, and then improve measurement accuracy and Measurement efficiency.
Currently without the explanation or report for finding technology similar to the present invention, it is also not yet collected into money similar both at home and abroad Material.
Summary of the invention
Aiming at the above shortcomings existing in the prior art, it is an object of the present invention to provide a kind of self-positioning auto-focusings CCD cylinder outer profile detection device, the device can voluntarily adjust measuring device and parallel-plate light according to the posture of tested round tube The posture in source simultaneously measures, and measurement efficiency improves a lot compared with traditional manual measurement, and measurement accuracy is also more reliable, and this Device can work normally in a big way.
The present invention is achieved by the following technical solutions.
A kind of CCD cylinder outer profile detection device of self-positioning auto-focusing, it includes positioning plate, the positioning plate side CCD bracket, parallel-plate light source and autofocus mechanism are installed.
The CCD bracket upper and lower surface is mounted on CCD component, the CCD component include CCD sliding block, CCD guide rail and CCD component, and the full symmetric setting of CCD component;The CCD guide rail is fixed on the upper and lower surface of the CCD bracket, the CCD Bracket is installed on the CCD guide rail, and the CCD component is installed on the CCD shoe surface again.
The parallel-plate light source parallel with the CCD bracket is installed perpendicular to positioning plate.
The autofocus mechanism includes electric cylinder, grating scale mounting plate, grating scale, microswitch and screw mechanism;Institute It states electric cylinder and the grating scale is installed on the grating scale mounting plate;The grating reading head of the grating scale passes through connecting rod It is connect with the electric cylinder, the microswitch is mounted on connecting rod;The screw mechanism is installed in the CCD bracket Portion, the feed screw nut of the screw mechanism are connect with the CCD guide rail, the mounting plate of the motor of the screw mechanism with it is described CCD bracket is connected.The distance between CCD component and tested cylinder are measured by grating scale, screw mechanism passes through PLC controller control Motor processed carries out auto-focusing to CCD component through screw mechanism.
Preferably, further including locating support, positioning panel guide, positioning plate sliding block and propulsion cylinder group, wherein described fixed The top of position plate is equipped with the first flexural pivot, and the other side of the first flexural pivot is connect with positioning plate sliding block, and positioning plate sliding block can be in positioning plate It is slided on guide rail, the positioning panel guide is connected on positioning board mount;The propulsion cylinder group is installed on the another of positioning plate Side, under the promotion of propulsion cylinder group, the first flexural pivot allow the posture of positioning plate according to the posture in tested cylindrical end face into Row adjustment.
Preferably, the propulsion cylinder group includes: and positioning plate propulsion cylinder bracket disposed in parallel and is set to 3 propulsion cylinders for being separated by hexagonal angle and being disposed in parallel relation to one another between propulsion cylinder bracket and positioning plate;The propulsion cylinder Including propulsion cylinder pipe and propulsion cylinder bar;It is connected between the propulsion cylinder bar and the positioning plate by the second flexural pivot;It is described It is connected between propulsion cylinder pipe and propulsion cylinder bracket by third flexural pivot;Propulsion cylinder makes positioning plate to the end of tested cylinder Face is mobile, and propulsion cylinder just starts to synchronize, positioning plate encounter after tested cylinder occur it is asynchronous, until positioning plate and cylinder end face Fitting, i.e., the posture of positioning plate can change according to the posture in tested cylindrical end face.
Preferably, being provided with reinforcing rib on the propulsion cylinder bracket for reinforcing.
Preferably, the front and rear sides of the positioning panel guide are mounted on limited block, it can be to the positioning plate sliding block Movement is limited.
Preferably, being bolted between the CCD bracket and the positioning plate.
Preferably, being connected between the parallel-plate light source and the positioning plate by angle bar.
Preferably, the positioning panel guide is connected on positioning board mount by bolt.
Preferably, further including pedestal, the positioning board mount and propulsion cylinder bracket are respectively fixedly connected on the base.
Preferably, further include PLC controller, the PLC controller respectively with electric cylinder, screw mechanism and grating scale Control connection.
It is connected preferably, the PLC controller is also controlled with propulsion cylinder.
Compared with prior art, the invention has the following beneficial effects:
The present invention is a kind of auto-focusing CCD detection device that can be self-positioning to tested cylinder, when work, is tested cylinder It is first fed into some position between CCD component and parallel-plate light source;After the completion of feeding, PLC controller obtains signal, makes electromagnetism Valve starts to act on, and control propulsion cylinder pushes positioning plate;The process of tested cylinder front end face is close to from initial position in positioning plate In, tested cylinder is motionless, at this time the propulsion cylinder under electromagnetism valve action, positioning plate meeting automatic position adjusting function, final and measured circle Column front end face fits closely, and at this moment solenoid valve maintains the thrust to propulsion cylinder, that is, the process to the positioning of cylinder end face.It is fixed After the completion of position, electric cylinder pushes connecting rod to drive the grating reading head of grating scale, stops until microswitch provides signal electric cylinder It pushes, optical grating ruler measurement goes out the vertical range between the camera lens of tested cylinder distance CCD component at this time;Again by PLC controller control Screw mechanism automatic adjustment CCD component locations namely auto-focusing processed;CCD component shoots tested cylinder profile after the completion of focusing, After the completion of shooting, CCD component gives PLC controller signal, and PLC controller control electric cylinder first retracts certain distance, pusher Inlet casing rollback certain distance, tested cylinder rotate by a certain angle, and propulsion cylinder and electric cylinder successively complete positioning and right again Coke, the shooting of CCD component, the photo until having clapped the estimated shooting of every cylinder.It is sent into next cylinder later, so recycles.This Inventive structure is simple, can be automatically positioned tested cylinder and to CCD component automatic focusing, by different-diameter being arranged different ginsengs The measurement to different-diameter cylinder outer profile can be achieved in number, improves measurement efficiency and measurement accuracy.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention, Objects and advantages will become more apparent upon:
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is main view of the invention;
Fig. 3 is another structural schematic diagram of the invention;
Fig. 4 is right view of the invention;
In figure: 1 is pedestal;2 be positioning board mount;3 be propulsion cylinder bracket;4 be positioning plate;5 be parallel-plate light source;6 For propulsion cylinder;7 be propulsion cylinder pipe;8 be propulsion cylinder bar;9 be angle bar;10 be CCD bracket;11 be CCD sliding block;12 are CCD guide rail;13 be CCD component;14 be the motor of screw mechanism;15 be shaft coupling;16 be lead screw fixing end;17 support for lead screw End;18 be lead screw screw rod;19 be feed screw nut;20 be lead screw;21 be feed screw nut mounting plate;22 be autofocus mechanism;23 For ranging mechanism mounting plate;24 be electric cylinder;25 be grating scale;26 be scale grating;27 be grating reading head;28 open for fine motion It closes;29 be grating reading head mounting plate;30 be positioning panel guide;31 be positioning plate sliding block;32 be the first flexural pivot connecting rod;33 be Two flexural pivots;34 be third flexural pivot;35 be the first flexural pivot.
Specific embodiment
Elaborate below to the embodiment of the present invention: the present embodiment carries out under the premise of the technical scheme of the present invention Implement, the detailed implementation method and specific operation process are given.It should be pointed out that those skilled in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention Protect range.
Embodiment
A kind of CCD cylinder outer profile detection device of self-positioning auto-focusing is present embodiments provided, it includes positioning plate, The positioning plate side is equipped with CCD bracket, parallel-plate light source and autofocus mechanism.
The CCD bracket upper and lower surface is mounted on CCD sliding block, CCD guide rail and CCD component (CCD component);The CCD It is bolted between bracket and the positioning plate;The CCD guide rail is fixed on the upper and lower surface of the CCD bracket, described CCD sliding block is installed on the CCD guide rail, and the CCD component is installed on CCD shoe surface;.
The parallel-plate light source parallel with the CCD bracket is installed perpendicular to positioning plate;The parallel-plate light source and institute It states and is connected between positioning plate by angle bar.
The autofocus mechanism includes electric cylinder, grating scale mounting plate, grating scale, microswitch and screw mechanism;Institute It states electric cylinder and the grating scale is installed on the grating scale mounting plate;The grating reading head of the grating scale passes through connecting rod It is connect with the electric cylinder, the microswitch is mounted on connecting rod;The screw mechanism is installed on the CCD mid-stent, The feed screw nut of the screw mechanism is connect with the CCD guide rail, the mounting plate of the motor of the screw mechanism and the CCD branch Frame is connected.By the distance between optical grating ruler measurement CCD component and tested cylinder, to carry out auto-focusing.
First flexural pivot is arranged at the positioning plate top, and the first flexural pivot other side is connect with positioning plate sliding block, and positioning plate sliding block can It is slided on positioning panel guide, positioning panel guide is connected on positioning board mount by bolt;The positioning board mount is connected in On pedestal.Under propulsion cylinder promotion, the first flexural pivot allow the posture of positioning plate according to the posture in tested cylindrical end face into Row adjustment.
The other side of the positioning plate is equipped with 3 and is separated by hexagonal angle and propulsion cylinder parallel to each other;The propulsion gas Cylinder includes propulsion cylinder pipe and propulsion cylinder bar;It is connected between the propulsion cylinder bar and the positioning plate by the second flexural pivot; It is connected between the propulsion cylinder pipe and propulsion cylinder bracket by third flexural pivot;The propulsion cylinder bracket is fixed on pedestal On.Propulsion cylinder makes positioning plate mobile to the end face of tested cylinder, i.e., the posture of positioning plate can be according to tested cylindrical end face Change.
The front and rear sides of the positioning panel guide are mounted on limited block, can limit the movement of the positioning plate sliding block Position.
This implementation is described in further detail with reference to the accompanying drawing.
It is detailed in shown in FIG. 1 to FIG. 4, a kind of CCD cylinder outer profile detection device of self-positioning auto-focusing, it includes pedestal 1, board mount 2, propulsion cylinder bracket 3, positioning plate 4, parallel-plate light source 5, propulsion cylinder 6, angle bar 9, CCD bracket 10, CCD are positioned Sliding block 11, positioning plate sliding block 31, CCD guide rail 12, motor 14, the shaft coupling for positioning panel guide 30, CCD component 13, screw mechanism 15, lead screw fixing end 16, lead screw support end 17, lead screw 20, electric cylinder 24, grating scale 25, microswitch 28, connecting rod 32, flexural pivot 33~35.The positioning plate side is equipped with CCD bracket, parallel-plate light source and autofocus mechanism.Following table on the CCD bracket Face is mounted on CCD sliding block, CCD guide rail and CCD component (CCD component);Pass through spiral shell between the CCD bracket and the positioning plate It tethers and connects;The CCD guide rail is fixed on the surface of the CCD bracket, and the CCD sliding block is set on CCD guide rail, the CCD Component is installed on the CCD shoe surface again.The parallel-plate light source parallel with the CCD bracket is pacified perpendicular to positioning plate Dress;It is connected between the parallel-plate light source and the positioning plate by angle bar.The autofocus mechanism includes electric cylinder, grating Ruler mounting plate, grating scale, microswitch and screw mechanism;The electric cylinder and the grating scale are installed in the grating scale peace In loading board;The grating reading head of the grating scale is connect by connecting rod with the electric cylinder, and the microswitch is mounted on connecting rod On;The screw mechanism is installed on the CCD mid-stent, including feed screw nut, lead screw screw rod, lead screw fixing end, lead screw branch Support end, motor and shaft coupling, wherein the motor is connected with shaft coupling, and shaft coupling is connected with lead screw fixing end, the silk Thick stick fixing end is connected with one end of lead screw screw rod, and the lead screw support end is set to the other end of lead screw screw rod, the lead screw Nut is installed on lead screw screw rod;The feed screw nut is connect with the CCD guide rail, the mounting plate of the motor and the CCD Bracket is connected.Through optical grating ruler measurement CCD at a distance from measured object, to carry out auto-focusing.
The top of the positioning plate is equipped with the first flexural pivot, and the first flexural pivot other side is connect with positioning plate sliding block, and positioning plate is sliding Block can slide on positioning panel guide, and positioning panel guide is connected on positioning board mount by bolt;The positioning board mount is solid Even on the base.Under propulsion cylinder group (including propulsion cylinder and propulsion cylinder bracket) promotion, the first flexural pivot makes positioning plate Posture can be adjusted according to the posture in tested cylindrical end face.
The other side of the positioning plate is equipped with 3 and is separated by hexagonal angle and propulsion cylinder parallel to each other;The propulsion gas Cylinder includes propulsion cylinder pipe and propulsion cylinder bar;It is connected between the propulsion cylinder bar and the positioning plate by the second flexural pivot;Institute It states and is connected between propulsion cylinder pipe and propulsion cylinder bracket by third flexural pivot;Propulsion cylinder makes positioning plate to tested cylinder End face is mobile, and propulsion cylinder just starts to synchronize, positioning plate encounter after cylinder occur it is asynchronous, until positioning plate and cylindrical end face paste It closes, i.e., the posture of positioning plate can change according to tested cylindrical end face.
The front and rear sides of the guide rail are mounted on limited block, can limit to the movement of the positioning plate sliding block.
A kind of CCD cylinder outer profile detection device of self-positioning auto-focusing provided in this embodiment, utilizes propulsion cylinder Driving and flexural pivot can push up positioning plate in three, space side, automatically adjust between tested cylindrical end face and positioning plate Relative position.Tested cylinder is first fed into some position between CCD component and parallel-plate light source;After the completion of feeding, measured circle Column is motionless, and propulsion cylinder pushes positioning plate;During positioning plate is close to tested cylinder front end face from initial position, positioning plate Automatic position adjusting function is fitted closely with tested cylinder front end face;After the completion of the positioning of tested cylindrical end face, optical grating ruler measurement goes out quilt The vertical range between cylinder distance CCD component camera lens is surveyed, then CCD component is automatically adjusted by PLC controller control screw mechanism Position, that is, the process of automatic focusing;After the completion of positioning and focusing, CCD component shoots tested cylinder profile;Shooting is completed Afterwards, PLC controller successively controls grating scale and propulsion cylinder retracts, and tested cylinder rotates by a certain angle, and so recycles.
The present embodiment structure is simple, can be automatically positioned tested cylinder and to CCD automatic focusing, by the way that different-diameter is arranged Different parameters can be realized to the measurement of different-diameter cylinder outer profile, and measurement efficiency and measurement accuracy are improved.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow Ring substantive content of the invention.

Claims (8)

1. a kind of CCD cylinder outer profile detection device of self-positioning auto-focusing, including positioning plate, it is characterised in that: further include It is set to the CCD bracket, parallel-plate light source and autofocus mechanism of the side of the positioning plate;Wherein:
The upper and lower surface of the CCD bracket is separately installed with symmetrically arranged CCD component, the CCD component include CCD sliding block, CCD guide rail and CCD component;The CCD guide rail is fixed on the upper and lower surface of the CCD bracket, and the CCD sliding block is installed on institute It states on CCD guide rail, the CCD component is installed on CCD shoe surface;
The parallel-plate light source parallel with the CCD bracket is installed perpendicular to the positioning plate;The autofocus mechanism packet Include electric cylinder, grating scale mounting plate, grating scale, microswitch and screw mechanism;The electric cylinder and the grating scale are pacified On the grating scale mounting plate;The grating reading head of the grating scale is connect by connecting rod with the electric cylinder, described micro- Dynamic switch is mounted on connecting rod;The screw mechanism is installed on the middle part of the CCD bracket, the feed screw nut of the screw mechanism It is connect with the CCD guide rail, the mounting plate of the motor of the screw mechanism and the CCD bracket are connected;Pass through optical grating ruler measurement The distance between CCD component and tested cylinder, to carry out auto-focusing;
It further include positioning board mount, positioning panel guide, positioning plate sliding block and propulsion cylinder group, wherein the top of the positioning plate Equipped with the first flexural pivot, first flexural pivot is connect with positioning plate sliding block, and the positioning panel guide is connected on positioning board mount, institute Stating positioning plate sliding block can slide on positioning panel guide, and the propulsion cylinder group is installed on the other side of positioning plate, is promoting Under the promotion of air cylinder group, the first flexural pivot enables the posture of positioning plate to be adjusted according to the posture in tested cylindrical end face;
The propulsion cylinder group include: with positioning plate propulsion cylinder bracket disposed in parallel and be set to propulsion cylinder bracket with 3 propulsion cylinders for being separated by hexagonal angle and being disposed in parallel relation to one another between positioning plate;The propulsion cylinder includes propulsion cylinder pipe With propulsion cylinder bar;It is connected between the propulsion cylinder bar and the positioning plate by the second flexural pivot;The propulsion cylinder pipe with It is connected between propulsion cylinder bracket by third flexural pivot;Propulsion cylinder makes positioning plate mobile to the end face of tested cylinder, i.e., in fact The posture of existing positioning plate can be adjusted according to the posture in tested cylindrical end face.
2. a kind of CCD cylinder outer profile detection device of self-positioning auto-focusing according to claim 1, feature exist In: reinforcing rib is provided on the propulsion cylinder bracket.
3. a kind of CCD cylinder outer profile detection device of self-positioning auto-focusing according to claim 1, feature exist In: the positioning panel guide is equipped with the limited block limited for the movement to the positioning plate sliding block.
4. a kind of CCD cylinder outer profile detection device of self-positioning auto-focusing according to claim 1, feature exist In: it is bolted between the CCD bracket and the positioning plate.
5. a kind of CCD cylinder outer profile detection device of self-positioning auto-focusing according to claim 1, feature exist In: it is connected between the parallel-plate light source and the positioning plate by angle bar.
6. a kind of CCD cylinder outer profile detection device of self-positioning auto-focusing according to claim 1, feature exist In: it further include pedestal, the positioning board mount and propulsion cylinder bracket are respectively fixedly connected on the base.
7. a kind of CCD cylinder outer profile of self-positioning auto-focusing according to any one of claim 1 to 6 detects dress Set, it is characterised in that: further include PLC controller, the PLC controller respectively with electric cylinder, screw mechanism and grating scale control System connection.
8. a kind of CCD cylinder outer profile detection device of self-positioning auto-focusing according to claim 7, feature exist In: the PLC controller is also controlled with propulsion cylinder and is connected.
CN201711208042.4A 2017-11-27 2017-11-27 A kind of CCD cylinder outer profile detection device of self-positioning auto-focusing Expired - Fee Related CN107990842B (en)

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CN201711208042.4A CN107990842B (en) 2017-11-27 2017-11-27 A kind of CCD cylinder outer profile detection device of self-positioning auto-focusing

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110576339B (en) * 2019-09-12 2021-01-29 陕西科技大学 Laser tracker basic station calibration device
TWI792521B (en) * 2021-08-24 2023-02-11 新煒科技有限公司 Focusing mechanism and focusing equipment
CN116336946B (en) * 2023-05-30 2023-09-22 山东德晟机器人股份有限公司 Detection equipment

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CN101149254A (en) * 2007-11-12 2008-03-26 北京航空航天大学 High accuracy vision detection system
CN101839700A (en) * 2010-03-29 2010-09-22 重庆建设工业(集团)有限责任公司 Non-contact image measuring system
WO2011019014A1 (en) * 2009-08-11 2011-02-17 国立大学法人岡山大学 Defect inspection method and defect inspection apparatus
CN106334872A (en) * 2016-08-30 2017-01-18 淮阴工学院 Automatic focusing and real-time fine adjustment method for laser end surface texture machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101149254A (en) * 2007-11-12 2008-03-26 北京航空航天大学 High accuracy vision detection system
WO2011019014A1 (en) * 2009-08-11 2011-02-17 国立大学法人岡山大学 Defect inspection method and defect inspection apparatus
CN101839700A (en) * 2010-03-29 2010-09-22 重庆建设工业(集团)有限责任公司 Non-contact image measuring system
CN106334872A (en) * 2016-08-30 2017-01-18 淮阴工学院 Automatic focusing and real-time fine adjustment method for laser end surface texture machine

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