CN102632443A - Three-axle aspheric grinding machine - Google Patents
Three-axle aspheric grinding machine Download PDFInfo
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- CN102632443A CN102632443A CN2012101323025A CN201210132302A CN102632443A CN 102632443 A CN102632443 A CN 102632443A CN 2012101323025 A CN2012101323025 A CN 2012101323025A CN 201210132302 A CN201210132302 A CN 201210132302A CN 102632443 A CN102632443 A CN 102632443A
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- axle
- slide carriage
- ram
- emery wheel
- pedestal
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Abstract
The invention provides a three-axle aspheric grinding machine comprising an inward-concave base. An X-axle slide carriage is sunk in a groove of the base; a rotating table is arranged on the X-axle slide carriage; an X-axle grating bar is arranged at one side of the bottom of the X-axle slide carriage, and an X-axle motor is arranged at the other side; a stand column and a cross beam are arranged on the base; a Z-axle mounting base is mounted on the cross beam; the Z-axle mounting base is connected with a Z-axle ram through a Z guide rail pressing strip; and a Z oil-returning tray and a grinding wheel are mounted at the end part of the Z-axle ram. In a machining process, a numerical control system controls the X-axle slide carriage, the Z-axle ram and the rotating table, so that a contact point of the grinding wheel and a working piece is continuously changed to machine the working piece. The three-axle aspheric grinding machine provided by the invention can improve grinding surface quality, reduce subsurface damage and has the characteristics of high rigidity and high dynamic property. Furthermore, the three-axle aspheric grinding machine has the advantages of compact structure, high rigidity and good dynamical property. Meanwhile, the machining efficiency can be extremely improved.
Description
Technical field
The invention belongs to machinery manufacturing technology field, particularly a kind of three aspheric surface grinding machines.
Background technology
Along with the development in fields such as military affairs, space flight, aviation, nuclear energy, astronomy, the use of aperture aspherical optical element more and more widely, the requirement of its surface quality and contour accuracy thereof is also increasingly high.Each state is all in the super-precision machine tools of greatly developing the aperture aspherical element and Study on Processing Technology.Diamond grinding has carried out a series of research abroad as a kind of important means of ultraprecise processing, has formed certain technology and experience accumulation, and a series of ultraprecise grinding machine occurred.There is big gap in current China with comparing also abroad, and research superfine grinding lathe and process technology thereof are to the great significance in fields such as China's military affairs, space flight, aviation, nuclear energy, astronomy.
Summary of the invention
In order to overcome the defective of above-mentioned prior art; The object of the present invention is to provide a kind of three aspheric surface grinding machines, be used for the processing of aperture aspherical optical elements ultraprecise, can improve grinding surface quality; Reduce sub-surface damage, have high rigidity, high dynamic performance characteristics; And compact conformation, rigidity are high, dynamic property is good, and working (machining) efficiency also is greatly improved simultaneously.
In order to achieve the above object, technical scheme of the present invention is achieved in that
A kind of three aspheric surface grinding machines comprise inner concavity pedestal 1, and X axle slide carriage 19 is lowered in the groove of pedestal 1 through X guide rail press strip 20; On the X axle slide carriage 19 turntable 18 is set, and turntable 18 is higher than pedestal 1 upper surface, X axle slide carriage 19 bottoms one side is provided with X axle grating chi 21; 19 bottom opposite side settings of X axle slide carriage and the X spindle motor 22 that X axle slide carriage 19 is connected are provided with column 2 on the pedestal 1, on the column 2 across crossbeam 3; Fixing Z axle mount pad 4 on the crossbeam 3; Connect Z axle rams 12 through Z guide rail press strip 11 on the Z axle mount pad 4, Z return tray 15 and emery wheel 16 are installed in Z axle ram 12 ends, and return tray 15 is around emery wheel 16 and exceed emery wheel 16.
Described emery wheel 16 is the anchor ring shape.
Described X axle slide carriage 19 rear portions are equipped with dresser 17.
Described Z axle mount pad 4 adopts L shaped structural entity casting; Its front end is semi-enclosed square groove; Z axle ram 12 places in the square groove; Each surface arrangement static pressure piece of square groove, with the Z axis rail press strip 11 common Z axis rails of forming, the front end of Z axle mount pad 4 is installed Z axle servomotor 7 and balancing cylinder 6.
The present invention adopts the collocation form of X axle and Z axle two linear axis, a rotating shaft, main shaft be the Z axle be in tilted layout and in be loaded on Z axle ram 12 lower ends, compact conformation reduces machine mass, practices thrift cost and brings convenience for Installation and Debugging.Two linear axis are respectively the X axle that the Z axle that vertically moves and along continuous straight runs move, and main shaft is arranged around X axle inclination certain angle; The mode of arranging guide rail on the crossbeam with no guide rail on the pedestal is compared; Though pedestal 1 increases along the size of X guide rail direction, the span of crossbeam 3 reduces, and the hron spacing of Z axle ram 12 reduces; Distortion on the crossbeam 3 reduces; Simultaneously the X guide rail is arranged on the pedestal, its precision is easier to guarantee that process and assemble is convenient.
When X axle and the motion of Z axle, each all adopts hydrostatic slideway, through flow-control piece 10 control fluid floies, has the rigidity height, and coefficient of friction is little, and nothing is creeped, almost not wearing and tearing and heating; X axle and turntable 18 adopt does not have the linear electric motors of intermediate transfer ring or torque motor directly to drive, and adopts high accuracy grating chi to carry out close-loop feedback control, has reduced transmission error, dwindles the transmission system volume, has improved control accuracy and dynamic response; The Z axle adopts Z axle servomotor 7 and precision ball screw 9 to drive, and adopts Z grating chi 13 to carry out close-loop feedback control, can realize small feeding.
X axle slide carriage 19 places in the groove of pedestal 1, and turntable 18 is installed on the X axle slide carriage 19, only makes table top be higher than pedestal 1 upper surface, can reduce the height of column 2 like this, improves the dynamic characteristic of lathe.
Description of drawings
Accompanying drawing is a structure chart of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
With reference to accompanying drawing, a kind of three aspheric surface grinding machines comprise inner concavity pedestal 1; X axle slide carriage 19 is lowered in the groove of pedestal 1 through X guide rail press strip 20, and X axle slide carriage 19 is provided with turntable 18, makes turntable 18 be higher than pedestal 1 upper surface; X axle slide carriage 19 bottoms one side is provided with X axle grating chi 21, is used to carry out close-loop feedback control, and X axle slide carriage 19 bottom opposite sides are provided with the X spindle motor 22 that is connected with X axle slide carriage 19; Pedestal 1 is provided with column 2, is crossed with crossbeam 3 on the column 2, is fixed with Z axle mount pad 4 on the crossbeam 3; Be connected with Z axle ram 12 through Z guide rail press strip 11 on the Z axle mount pad 4, Z return tray 15 and emery wheel 16 are installed in Z axle ram 12 ends, and hydraulic oil flow into Z return tray 15 along ram 12; Reclaim with scavenge oil pump through oil-out again; Return tray 15 is around emery wheel 16 and exceed emery wheel 16, and the encirclement to emery wheel 16 formation certain altitudes can prevent that when grinding cooling fluid from throwing away with emery wheel.
Described emery wheel 16 is the anchor ring shape, adopts anchor ring shape emery wheel 16, and emery wheel 16 is in tilted layout, and it is little to take up room; Adopt the surface of low curvature, it is big to add the man-hour contact area, can improve grinding efficiency.
Described X axle slide carriage 19 rear portions are equipped with dresser 17, carry out the finishing and the detection of emery wheel 16.
Main shaft of the present invention is the Z axle, and the Z axle is in tilted layout around the X axle, is loaded in the Z axle in the Z axle ram 12, and the pipeline of Z axle extends in the drag chain 8 through ram 12 inside.
Described Z axle mount pad 4 adopts L shaped structural entity casting, and its front end is semi-enclosed square groove, and Z axle ram 12 places in the groove, and each surface arrangement static pressure piece of square groove is with the Z axis rail press strip 11 common Z axis rails of forming.Z axle ram 12 adopts Z axle servomotor 7 to drive with ball-screw 9, adopts Z grating chi 13 to carry out FEEDBACK CONTROL.Ram 12 is arranged guide pass all around for the square frame dress, forms the enclosed hydrostatic slideway, and after the balance through oil cylinder 6, the power that Z axial filament thick stick 9 bears will reduce, and reduces its distortion and heating.Do not work or adopt during the hydraulic system decompression 5 pairs of Z axles of hydraulic locking apparatus to lock at lathe.The front end of Z axle mount pad 4 is installed Z drive motors 7 and balancing cylinder 6, but the part quality of balance ram 12.
Operation principle of the present invention is: in process; Utilize digital control system control X axle slide carriage 20, Z axle ram 12 and turntable 18 interlocks, owing to emery wheel 16 can only move in the XZ plane, and emery wheel 16 surface and aspheric surfaces; So the contact point of emery wheel and workpiece constantly changes; Adding require to calculate grinding points man-hour earlier according to the face shape of workpiece to be processed change in location track, utilize digital control system to accomplish interpolation through this track again, accomplish the processing of workpiece.Wearing and tearing at grinding process medium plain emery wheel 16 are inevitable; Through on X axle slide carriage 19, arranging dresser 17; When needed emery wheel 16 is carried out automatic dressing and detection; After finishing and 16 shapes of detection emery wheel reached requirement, control X axle made emery wheel 16 leave the finishing district and gets into processing district continuation processing work.
Among the figure: 1, pedestal 2; Column 3; Crossbeam 4; Z axle mount pad 5; Hydraulic locking apparatus; 6, balancing cylinder; 7, Z axle servomotor; 8, Z axle drag chain; 9, ball-screw; 10, flow-control piece; 11, Z guide rail press strip; 12, Z axle ram; 13, Z grating chi; 14, Z grating ruler reading head mount pad; 15, Z return tray; 16, emery wheel 17; Dresser 18; Turntable; 19X axle slide carriage; 20, X guide rail press strip; 21, X axle grating chi; 22, X spindle motor.
Claims (4)
1. three aspheric surface grinding machines is characterized in that, comprise inner concavity pedestal (1); X axle slide carriage (19) is lowered in the groove of pedestal (1) through X guide rail press strip (20), and turntable (18) is set on the X axle slide carriage (19), and turntable (18) is higher than pedestal (1) upper surface; X axle slide carriage (19) bottom one side is provided with X axle grating chi (21); X axle slide carriage (19) bottom opposite side is provided with the X spindle motor (22) that is connected with X axle slide carriage (19), and column (2) is set on the pedestal (1), is crossed with crossbeam (3) on the column (2); Crossbeam (3) is gone up fixedly Z axle mount pad (4); Z axle mount pad (4) is gone up through Z guide rail press strip (11) and is connected Z axle ram (12), and Z return tray (15) and emery wheel (16) are installed in Z axle ram (12) end, return tray (15) emery wheel (16) all around and exceed emery wheel (16).
2. a kind of three aspheric surface grinding machines according to claim 1 is characterized in that described emery wheel (16) is the anchor ring shape.
3. a kind of three aspheric surface grinding machines according to claim 1 is characterized in that described X axle slide carriage (19) rear portion is equipped with dresser (17).
4. a kind of three aspheric surface grinding machines according to claim 1; It is characterized in that described Z axle mount pad (4) adopts L shaped structural entity casting, its front end is semi-enclosed square groove; Z axle ram (12) places in the groove; Each surface arrangement static pressure piece of square groove is formed the Z axis rail jointly with Z axis rail press strip (11), and the front end of Z axle mount pad (4) is installed Z axle servomotor (7) and balancing cylinder (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210132302.5A CN102632443B (en) | 2012-05-02 | 2012-05-02 | A kind of three axle aspheric surface grinding machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210132302.5A CN102632443B (en) | 2012-05-02 | 2012-05-02 | A kind of three axle aspheric surface grinding machines |
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| Publication Number | Publication Date |
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| CN102632443A true CN102632443A (en) | 2012-08-15 |
| CN102632443B CN102632443B (en) | 2015-08-26 |
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| CN201210132302.5A Active CN102632443B (en) | 2012-05-02 | 2012-05-02 | A kind of three axle aspheric surface grinding machines |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495909A (en) * | 2013-10-11 | 2014-01-08 | 中国科学院光电技术研究所 | High-frequency vibration conformal machining device and method for surface of optical element |
| CN103495909B (en) * | 2013-10-11 | 2016-11-30 | 中国科学院光电技术研究所 | High-frequency vibration conformal machining device and method for surface of optical element |
| CN109093484A (en) * | 2018-09-14 | 2018-12-28 | 浙江机电职业技术学院 | A kind of two-axle interlocking casting grinding method and device |
| CN118106873A (en) * | 2024-03-14 | 2024-05-31 | 哈尔滨工业大学 | A high-rigidity five-axis linkage ultra-precision grinding machine tool |
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| JP2001300838A (en) * | 2000-04-25 | 2001-10-30 | Inst Of Physical & Chemical Res | Large super-precision ELID aspherical surface processing equipment |
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2012
- 2012-05-02 CN CN201210132302.5A patent/CN102632443B/en active Active
Patent Citations (7)
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| JP2001300838A (en) * | 2000-04-25 | 2001-10-30 | Inst Of Physical & Chemical Res | Large super-precision ELID aspherical surface processing equipment |
| CN1428225A (en) * | 2002-12-03 | 2003-07-09 | 汕头大学 | Grinding bed dresser |
| JP2006326789A (en) * | 2005-05-30 | 2006-12-07 | Konica Minolta Opto Inc | Guide device and machine tool |
| CN200991842Y (en) * | 2006-12-06 | 2007-12-19 | 辛格玛机械股份有限公司 | Multifunction grinding machine |
| CN201455767U (en) * | 2009-07-29 | 2010-05-12 | 陈耀龙 | Optical element machining center |
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| CN102390034A (en) * | 2011-10-20 | 2012-03-28 | 常州市三维技术成套设备有限公司 | Powerful-grinder clamping device |
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| 王毓民 等: "《润滑材料与润滑技术》", 31 January 2005, article "《润滑材料与润滑技术》", pages: 473-474 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495909A (en) * | 2013-10-11 | 2014-01-08 | 中国科学院光电技术研究所 | High-frequency vibration conformal machining device and method for surface of optical element |
| CN103495909B (en) * | 2013-10-11 | 2016-11-30 | 中国科学院光电技术研究所 | High-frequency vibration conformal machining device and method for surface of optical element |
| CN109093484A (en) * | 2018-09-14 | 2018-12-28 | 浙江机电职业技术学院 | A kind of two-axle interlocking casting grinding method and device |
| CN118106873A (en) * | 2024-03-14 | 2024-05-31 | 哈尔滨工业大学 | A high-rigidity five-axis linkage ultra-precision grinding machine tool |
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| Publication number | Publication date |
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| CN102632443B (en) | 2015-08-26 |
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