CN1686674A - Digitized precise curve grinding integrated control system - Google Patents
Digitized precise curve grinding integrated control system Download PDFInfo
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- CN1686674A CN1686674A CN 200510025062 CN200510025062A CN1686674A CN 1686674 A CN1686674 A CN 1686674A CN 200510025062 CN200510025062 CN 200510025062 CN 200510025062 A CN200510025062 A CN 200510025062A CN 1686674 A CN1686674 A CN 1686674A
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Abstract
An integrated control system for the digitalized precise curve grinding is based on the in-line image recognition, and is composed of 8-axle 4-linkage open numeral control system for grinding, and in-line detecting unit for the sizes of workpiece and the form of abrasive disc.
Description
Technical field
What the present invention relates to is a kind of grinding system that is used for the metal cutting processing technique field, particularly a kind of digitized precise curve grinding integrated control system based on the image ONLINE RECOGNITION.
Background technology
Along with the high speed development of digital photoelectric technology, substitute traditional optical system with CCD (CCD) technology, will improve the technical performance degree of accurate curve surface grinder greatly.Traditional optical contour grinder is to rely on optical projection to observe the grinding situation, can't gather and handle these image informations, also just can't realize emery wheel from the motion tracking grinding.The CCD technology is the most important device of current image data acquiring, the view data that CCD gathers can directly be handled by computer, realize the detection and the observation of emery wheel and workpiece pattern and size, realize the TRAJECTORY CONTROL of grinding points then by digital control system, so just can realize precise Grinding of Ellipse Parts such as various complex-curved and various circular cutters, model.The CNC optical projection form grind of world-renowned grinding machine manufacturer Switzerland DOEBELI company is to rely on optical projection to observe the grinding situation, can't gather and handle these image informations, also just can't realize emery wheel from the motion tracking grinding.The bistrique of hydraulic control can only be reciprocating in a certain fixed center position, can not be reciprocating in the optional position of Z axle, and the reciprocating stroke of bistrique can not lean on progressive number control; Control system adopts FANUC 18M, and it is integrated that this closed digital control system can not realize that computer and image are handled.
Find through literature search prior art, Chinese patent application number: 99814313.8, patent name is: the control method of workpiece Grinding Process and grinding machine, the described grinding machine of this patent have an emery wheel, that workpiece is carried out grinding that is fixed on the wheel spindle stock and are used to detect by the measuring transducer of the size of grinding work-piece and a grinding machine control module.But owing to be to adopt measuring transducer that workpiece is carried out contact type measurement in this device, precision is lower, can only realize the corase grind processing of rotary part, so can't realize various complex-curved accurate grindings.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and defective, a kind of digitized precise curve grinding integrated control system based on the image ONLINE RECOGNITION is provided.Achieved emery wheel reciprocating stroke, reciprocating speed digital accurate control, designed and have the image ONLINE RECOGNITION and detect and the moving open digitlization integrated control system of eight tetrads of processing capacity, realized digital accurate detection, compensation and control.
The present invention is achieved by the following technical solutions, the present invention includes: eight moving open grinding digital control systems of tetrad, workpiece size and emery wheel appearance on-line measuring device, its annexation is: eight moving open grinding digital control systems of tetrad are connected with the emery wheel appearance on-line measuring device with workpiece size, eight moving open grinding digital control systems of tetrad comprise: computer, multi-axis motion control card, the I/O interface card, hand arteries and veins transition card, the two-port RAM card, touch display, AC servo motor, linear electric motors, AC servo driver, linear motor driver, the grating chi, handwheel, the emery wheel slide plate, its annexation is: multi-axis motion control card, the two-port RAM card is inserted on the PCI slot of computer, touch display directly is connected to computer, handwheel links to each other with hand arteries and veins transition card, AC servo motor links to each other with AC servo driver, linear electric motors link to each other with linear motor driver, the I/O interface card, hand arteries and veins transition card, AC servo driver, linear motor driver, the grating chi links to each other with multi-axis motion control card respectively, the emery wheel slide plate is fixed on the linear electric motors, and described workpiece size and emery wheel appearance on-line measuring device comprise: ccd video camera, focusing lens, light source, lowering or hoisting gear, image pick-up card, position sensor, the Synchronization Control card.Its connected mode is: focusing lens are located at the bottom of ccd video camera, light source is fixed on the focusing lens below, ccd video camera, focusing lens, light source are formed optical imaging device, optical imaging device is fixed by bolts on the lowering or hoisting gear, lowering or hoisting gear is erected on the lathe base by propping up, image pick-up card and Synchronization Control card are inserted on the pci bus slot of computer, and position sensor is located on the grinder wheel frame.
Described emery wheel slide plate is provided with air balance device.
Described air balance device comprises: balance cylinder, pneumatic braking device, source of the gas air valve, braking air valve and pressure sensor, its connected mode is: balance cylinder is fixed between grinder wheel frame and the emery wheel slide plate, pneumatic braking device is fixed on the grinder wheel frame, and source of the gas air valve, braking air valve, pressure sensor link to each other with the I/O interface card.
Each kinematic axis of the moving open grinding digital control system control of eight tetrads of the present invention profile grinder carries out accurate grinding processing, the digital accurate that workpiece size and emery wheel appearance on-line measuring device carry out image detects, and the output signal of workpiece size and emery wheel appearance on-line measuring device sends the moving open grinding digital control system of eight tetrads to.Computer is finished with the employing two-port RAM card of communicating by letter between the multi-axis motion control card, the switching value signal is controlled by the I/O interface card, hand arteries and veins transition card is converted to orthogonal intersection code signal to the input signal of handwheel, handle through multi-axis motion control card again, control each manual microfeed, touch display is used for the demonstration and the man-machine interaction of ccd image.Link to each other with AC servo driver, linear motor driver, grating chi based on the multi-axis motion control card of PC and to constitute the digital control system in open type that NC embeds the PC structure, the full cut-off ring structure that is made of linear electric motors, linear motor driver, grating chi drives the emery wheel slide plate emery wheel is back and forth accurately controlled, the accurate grinding of the full cut-off ring structure control complex curve that is made of AC servo motor, AC servo driver, grating chi.
The direction of motion at linear electric motors is installed air balance device, the reliable braking when making the dynamic balancing of emery wheel slide plate when vertical direction keeps motion and shutting down.During normal the operation, the source of the gas air valve is opened, and balance cylinder is regulated automatically and reached equilibrium of forces when air pressure moves back and forth the emery wheel slide plate; when shutting down dead electricity or pressure sensor when detecting under-voltage signal; start the braking air valve, the pneumatic braking device action makes the emery wheel slide plate be parked in the fixed position.
Lowering or hoisting gear is used to adjust the optical imaging device position, and focusing obtains emery wheel and workpiece image clearly to ccd video camera by lowering or hoisting gear, focusing lens, and optical imaging device is undertaken image to the vision signal input picture capture card that collects by computer to be handled.When position sensor detects the emery wheel skateboarding to image sampling point, to Synchronization Control card input triggering signal, the Synchronization Control card sends current impulse and drives image pick-up card and gather workpiece and the emery wheel transient images at sampling point position, this also can carry out pulse-triggered by the position comparing function of multi-axis motion control card, and the CCD checkout gear carries out real time image collection automatically according to the sampling location of computer settings.
The invention has the beneficial effects as follows: adopt emery wheel appearance dynamic testing method based on ccd image identification, ccd image collection and digital image processing techniques are applied to the online detection of emery wheel of grinding process, the technical barrier of effectively having avoided traditional emery wheel to run in detecting.Employing is based on the open cnc grinding integrated system of PC platform, and the collection multiaxis is digital control, video acquisition, image demonstrations, image processing, online cutter compensation, Machine-Tool Control are one, has realized that the accurate grinding of various complex parts is processed.Adopt advanced techniques of linear motor, realized that the gapless Any Digitization of bistrique speed, position, stroke on Z-direction is regulated control automatically, solved that bistrique moves back and forth the grinding vibration waviness problem that intrinsic gap causes in the traditional optical camber grinding.The present invention has compared than higher performance with famous like product in the world, also has the market competitiveness preferably.The present invention can realize five kinds of Curve Machining patterns, has perfect functions, higher precision and good performance, its online accuracy of detection≤0.005mm, minimum resolution: 0.0001mm, grinding speed≤70m/s, 400 times/min of maximum reciprocating speed, low cruise speed 0.1mm/min, by examination grinder part, machined surface roughness reaches Ra0.32 μ m; Contour machining precision is 0.005mm.In process, detect workpiece and emery wheel appearance by the CCD checkout gear, according to the ccd image digital processing results, determine that automatically the emery wheel compensation requires and the enforcement compensation, improved machining accuracy.
Description of drawings
Fig. 1 structural representation of the present invention
Fig. 2 the present invention controls schematic diagram
The specific embodiment
As shown in Figure 1 and Figure 2, the present invention includes: eight tetrads moving open grinding digital control system 1, workpiece size and emery wheel appearance on-line measuring devices 2, its annexation is: eight moving open grinding digital control systems 1 of tetrad are connected with emery wheel appearance on-line measuring device 2 with workpiece size.Each kinematic axis of the eight moving open grinding digital control system control of tetrad profile grinders carries out accurate grinding processing, the digital accurate that workpiece size and emery wheel appearance on-line measuring device carry out image detects, and the output signal of workpiece size and emery wheel appearance on-line measuring device sends the moving open grinding digital control system of eight tetrads to.
Eight moving open grinding digital control systems 1 of tetrad comprise: computer 3, multi-axis motion control card 4, I/O interface card 5, hand arteries and veins transition card 6, two-port RAM card 7, touch display 8, AC servo motor 9, linear electric motors 10, AC servo driver 11, linear motor driver 12, grating chi 13, handwheel 14, emery wheel slide plate 15, its annexation is: multi-axis motion control card 4, two-port RAM card 7 is inserted on the PCI slot of computer 3, touch display 8 directly is connected to computer 3, handwheel 14 links to each other with hand arteries and veins transition card 6, AC servo motor 9 links to each other with AC servo driver 11, linear electric motors 10 link to each other with linear motor driver 12, I/O interface card 5, hand arteries and veins transition card 6, AC servo driver 11, linear motor driver 12, grating chi 13 links to each other with multi-axis motion control card 4 respectively, and emery wheel slide plate 15 is fixed on the linear electric motors 10.
Described emery wheel slide plate 15 is provided with air balance device 16.Described air balance device 16 comprises: balance cylinder 17, pneumatic braking device 18, source of the gas air valve 19, braking air valve 20 and pressure sensor 21, its connected mode is: balance cylinder 17 is fixed between grinder wheel frame 22 and the emery wheel slide plate 15, pneumatic braking device 18 is fixed on the grinder wheel frame 22, and source of the gas air valve 19, braking air valve 20, pressure sensor 21 link to each other with I/O interface card 5.
Described workpiece size and emery wheel appearance on-line measuring device 2 comprise: ccd video camera 23, focusing lens 24, light source 25, lowering or hoisting gear 26, image pick-up card 27, position sensor 28, Synchronization Control card 29.Its connected mode is: focusing lens 24 are located at the bottom of ccd video camera 23, light source 25 is fixed on focusing lens 24 belows, ccd video camera 23, focusing lens 24, light source 25 are formed optical imaging device, optical imaging device is fixed by bolts on the lowering or hoisting gear 26, lowering or hoisting gear 26 is erected on the lathe base 30 by propping up, image pick-up card 27 and Synchronization Control card 29 are inserted on the pci bus slot of computer 3, and position sensor 28 is located on the grinder wheel frame 16.
Claims (3)
1, a kind of digitized precise curve grinding integrated control system, it is characterized in that, comprise: eight tetrads moving open grinding digital control system (1), workpiece size and emery wheel appearance on-line measuring devices (2), eight moving open grinding digital control systems (1) of tetrad are connected with emery wheel appearance on-line measuring device (2) with workpiece size
The moving open grinding digital control system (1) of described eight tetrads comprising: computer (3), multi-axis motion control card (4), I/O interface card (5), hand arteries and veins transition card (6), two-port RAM card (7), touch display (8), AC servo motor (9), linear electric motors (10), AC servo driver (11), linear motor driver (12), grating chi (13), handwheel (14), emery wheel slide plate (15), its annexation is: multi-axis motion control card (4), two-port RAM card (7) is inserted on the PCI slot of computer (3), touch display (8) directly is connected to computer (3), handwheel (14) links to each other with hand arteries and veins transition card (6), AC servo motor (9) links to each other with AC servo driver (11), linear electric motors (10) link to each other with linear motor driver (12), I/O interface card (5), hand arteries and veins transition card (6), AC servo driver (11), linear motor driver (12), grating chi (13) links to each other with multi-axis motion control card (4) respectively, and emery wheel slide plate (15) is fixed on the linear electric motors (10);
Described workpiece size and emery wheel appearance on-line measuring device (2) comprising: ccd video camera (23), focusing lens (24), light source (25), lowering or hoisting gear (26), image pick-up card (27), position sensor (28), Synchronization Control card (29), its connected mode is: focusing lens (24) are located at the bottom of ccd video camera (23), light source (25) is fixed on focusing lens (24) below, ccd video camera (23), focusing lens (24), light source (25) is formed optical imaging device, optical imaging device is fixed by bolts on the lowering or hoisting gear (26), lowering or hoisting gear (26) is erected on the lathe base (30) by propping up, image pick-up card (27) and Synchronization Control card (29) are inserted on the pci bus slot of computer (3), and position sensor (28) is located on the grinder wheel frame (16).
2. digitized precise curve grinding integrated control system according to claim 1 is characterized in that, described emery wheel slide plate (15) is provided with air balance device (16).
3. digitized precise curve grinding integrated control system according to claim 1, it is characterized in that, described air balance device (16) comprising: balance cylinder (17), pneumatic braking device (18), source of the gas air valve (19), braking air valve (20) and pressure sensor (21), its connected mode is: balance cylinder (17) is fixed between grinder wheel frame (22) and the emery wheel slide plate (15), pneumatic braking device (18) is fixed on the grinder wheel frame (22), and source of the gas air valve (19), braking air valve (20), pressure sensor (21) link to each other with I/O interface card (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100250629A CN100361785C (en) | 2005-04-14 | 2005-04-14 | Digitized precise curve grinding integrated control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100250629A CN100361785C (en) | 2005-04-14 | 2005-04-14 | Digitized precise curve grinding integrated control system |
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| CN1686674A true CN1686674A (en) | 2005-10-26 |
| CN100361785C CN100361785C (en) | 2008-01-16 |
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| CNB2005100250629A Expired - Fee Related CN100361785C (en) | 2005-04-14 | 2005-04-14 | Digitized precise curve grinding integrated control system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101424940B (en) * | 2007-11-02 | 2010-12-29 | 深圳市大族电机科技有限公司 | Multi-shaft mobile system driven by linear electric motor |
| CN101966680A (en) * | 2010-09-26 | 2011-02-09 | 珠海市旺磐精密机械有限公司 | Numerical control system of grinding machine |
| CN102354220A (en) * | 2011-07-18 | 2012-02-15 | 李劲松 | Multi-axis motion control system for image measurement |
| CN102375430A (en) * | 2011-10-14 | 2012-03-14 | 江苏科技大学 | Numerical control system of vision type four-roller veneer reeling machine |
| CN102449564A (en) * | 2009-06-02 | 2012-05-09 | 罗伯特·博世有限公司 | Method and device for generating a variable motion profile for a drive unit of a machine |
| CN103111929A (en) * | 2013-03-01 | 2013-05-22 | 唐东升 | Optical projection profile grinder |
| CN104128884A (en) * | 2014-07-23 | 2014-11-05 | 江苏大学 | Tooth profile error control method and device for worm grinder |
| CN104972362A (en) * | 2014-04-14 | 2015-10-14 | 沈阳远大科技园有限公司 | Intelligent force control robot grinding system and method |
| CN105014525A (en) * | 2015-07-03 | 2015-11-04 | 浙江工业大学 | Self-adaptive adjusting method based on multi-degree-of-freedom adjusting mechanism of grinded/polished workpieces |
| CN106625252A (en) * | 2016-12-09 | 2017-05-10 | 贵州西南工具(集团)有限公司 | Grinding wheel dressing machine tool and grinding wheel dressing method thereof |
| CN107309802A (en) * | 2016-12-09 | 2017-11-03 | 贵州西南工具(集团)有限公司 | A kind of combinated grinding wheel milling drum and its method for grinding |
| CN107932265A (en) * | 2017-12-18 | 2018-04-20 | 唐东升 | A kind of CCD, CAM optical contour grinder |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3631897B2 (en) * | 1998-02-03 | 2005-03-23 | 三菱重工業株式会社 | Grinding equipment |
| CN2640701Y (en) * | 2003-07-08 | 2004-09-15 | 险峰机床厂 | Siemens digital control system applied in roller grinder work piece measuring device |
| JP2005030813A (en) * | 2003-07-09 | 2005-02-03 | Okamoto Machine Tool Works Ltd | Three-dimensional noncontact measuring apparatus and cnc precision grinding apparatus using the same |
| CN1320335C (en) * | 2004-10-28 | 2007-06-06 | 上海交通大学 | Dynamic detection method based on image recognition for emery wheel appearance |
-
2005
- 2005-04-14 CN CNB2005100250629A patent/CN100361785C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101424940B (en) * | 2007-11-02 | 2010-12-29 | 深圳市大族电机科技有限公司 | Multi-shaft mobile system driven by linear electric motor |
| CN102449564A (en) * | 2009-06-02 | 2012-05-09 | 罗伯特·博世有限公司 | Method and device for generating a variable motion profile for a drive unit of a machine |
| CN101966680A (en) * | 2010-09-26 | 2011-02-09 | 珠海市旺磐精密机械有限公司 | Numerical control system of grinding machine |
| CN101966680B (en) * | 2010-09-26 | 2012-09-19 | 珠海市旺磐精密机械有限公司 | Numerical control system of grinding machine |
| CN102354220A (en) * | 2011-07-18 | 2012-02-15 | 李劲松 | Multi-axis motion control system for image measurement |
| CN102375430A (en) * | 2011-10-14 | 2012-03-14 | 江苏科技大学 | Numerical control system of vision type four-roller veneer reeling machine |
| CN103111929A (en) * | 2013-03-01 | 2013-05-22 | 唐东升 | Optical projection profile grinder |
| CN104972362A (en) * | 2014-04-14 | 2015-10-14 | 沈阳远大科技园有限公司 | Intelligent force control robot grinding system and method |
| CN104128884A (en) * | 2014-07-23 | 2014-11-05 | 江苏大学 | Tooth profile error control method and device for worm grinder |
| CN105014525A (en) * | 2015-07-03 | 2015-11-04 | 浙江工业大学 | Self-adaptive adjusting method based on multi-degree-of-freedom adjusting mechanism of grinded/polished workpieces |
| CN106625252A (en) * | 2016-12-09 | 2017-05-10 | 贵州西南工具(集团)有限公司 | Grinding wheel dressing machine tool and grinding wheel dressing method thereof |
| CN107309802A (en) * | 2016-12-09 | 2017-11-03 | 贵州西南工具(集团)有限公司 | A kind of combinated grinding wheel milling drum and its method for grinding |
| CN106625252B (en) * | 2016-12-09 | 2019-11-12 | 贵州西南工具(集团)有限公司 | A kind of crushing lathe and its method for modifying grinding wheel |
| CN107932265A (en) * | 2017-12-18 | 2018-04-20 | 唐东升 | A kind of CCD, CAM optical contour grinder |
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| CN100361785C (en) | 2008-01-16 |
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