CN102248407A - Inclined beam structure for high-precision aspheric surface machining machine tool - Google Patents
Inclined beam structure for high-precision aspheric surface machining machine tool Download PDFInfo
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- CN102248407A CN102248407A CN2011100701281A CN201110070128A CN102248407A CN 102248407 A CN102248407 A CN 102248407A CN 2011100701281 A CN2011100701281 A CN 2011100701281A CN 201110070128 A CN201110070128 A CN 201110070128A CN 102248407 A CN102248407 A CN 102248407A
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Abstract
The invention relates to an inclined beam structure for a high-precision aspheric surface machining machine tool, and belongs to the field of advanced manufacturing. The inclined beam structure mainly comprises a 45-degree inclined beam structure, an adjustable closed liquid hydrostatic guide rail and a dual-flat linear motor opposite installation structure, wherein the 45-degree inclined beam structure 1 improves the stressed condition of a beam, and reduces the two-dimensional deflexion deformation of the beam; the thickness of an oil membrane of the closed liquid hydrostatic guide rail can be regulated by regulating a right adjusting hydrostatic block 19, and the assembly efficiency is high; primary flat linear motors 9 and 12 are vertically arranged on a T-shaped linear motor installation base 11 and a primary installation transition plate 10 respectively, so that deformation caused by the suction of the motors is reduced effectively, and the high precision and high dynamical property of the beam part are realized. The inclined beam structure can be used for the beam part of the machining machine tool for high-precision aspheric surface optical parts, and has the advantages of reducing the depth of subsurface damage layers caused by cutting the optical parts, improving the machining efficiency of the parts, along with high precision, high rigidity and high dynamical property.
Description
Technical field
The invention belongs to advanced manufacturing field, the big-and-middle-sized bed of tradition beam structure is improved, use this beam structure can realize the adjusting of enclosed hydrostatic slideway oil film thickness neatly, realize the direct driving technologies of low-cost two dull and stereotyped linear electric motors, this beam structure has the characteristics of high accuracy, high rigidity, high dynamic characteristic.
Background technology
Along with the development of manufacturing technology level and the startup of Important Project, more and more higher to the requirement on machining accuracy of high accuracy aspheric surface optical accessory, machining tool is proposed requirements such as high accuracy, high rigidity and high dynamic characteristic.The key technology of high accuracy machining tool such as guide rail form, type of drive etc. have determined the performance of lathe to a great extent.Using liquid hydrostatic slideway technology, linear electric motors direct driving technologies can realize the requirement to lathe high accuracy, high rigidity and high dynamic characteristic.
Summary of the invention
The objective of the invention is to improve hydrostatic slideway precision and rigidity, finally realize high accuracy, high rigidity, high dynamic characteristic in order to reduce heavy caliber high accuracy aspheric surface optical accessory machining tool part quality to greatest extent.
Technical scheme of the present invention is:
Adopt 45 ° of oblique beams to improve the crossbeam stressing conditions, effectively decomposed the weight of beam part and Z spindle unit, reduced load request, reduce requirement, effectively improved guide precision, reduce cost hydraulic system to hydrostatic slideway;
Can regulate enclosed hydrostatic slideway structure, the fluid pressure piece is fixed by 1: 100 wedge shape installed surface, can conveniently realize the adjusting of hydraulic oil film thickness, is applicable to the situation of different loads flexibly;
Two dull and stereotyped linear electric motors adopt vertical opposed installation, for the installing plate motor suction of cancelling out each other, reduce the influence of suction to frame for movement, have guaranteed the precision and the performance of parts.
Based on the requirement of aspherical mirror machining lathe high accuracy, high rigidity and high dynamic characteristic, the present invention adopts 45 ° of oblique beam structures, the opposed installation of two dull and stereotyped linear electric motors and can regulate enclosed hydrostatic slideway structure.
Description of drawings
Fig. 1 is the oblique beam structure chart of high accuracy aspherical mirror machining lathe.
Fig. 2 is two stressed schematic diagrames of the opposed mounting structure of dull and stereotyped linear electric motors.
The specific embodiment
Further specify embodiment below in conjunction with accompanying drawing.
Described a kind of oblique beam structure that is used for high accuracy aspherical mirror machining lathe is seen Fig. 1, comprises 45 ° of oblique beams 1, slide carriage ceiling molding 2, lower-left static pressure piece 3, upper left static pressure piece 4, guide rail ceiling molding 5, slide carriage 6, left side motor is installed side plate 7, linear electric motors secondary 8, linear electric motors elementary 9, elementary installation rebound 10, T type linear electric motors mount pad 11, linear electric motors elementary 12, linear electric motors secondary 13, right motor is installed side plate 14, linear electric motors are installed base plate 15, right static pressure piece 16, upper right static pressure piece 17, press strip 18 under the guide rail, the right static pressure piece 19 of regulating, bottom right static pressure piece 20, press strip 21 under the slide carriage.
The oblique beam structure of described high accuracy aspherical mirror machining lathe, adopt 45 ° of oblique beams 1, improved the crossbeam stressing conditions, the weight of slide carriage 6 and lathe Z spindle unit is decomposed, make that press strip 18 spigot surfaces and weight-bearing surface load reduce under guide rail ceiling molding 5 and the guide rail, reduce guide rail press strip stress deformation, also reduce requirement, help improving the bearing capacity and the guiding accuracy of guide rail the fluid pressure system.
The oblique beam structure of described high accuracy aspherical mirror machining lathe, employing can be regulated enclosed hydrostatic slideway structure, see Fig. 1, comprise press strip 21 under press strip 18 under right static pressure piece 16, upper right static pressure piece 17, the guide rail, right adjusting static pressure piece 19, bottom right static pressure piece 20, the slide carriage.Right adjusting static pressure piece 19 bottom surface installed surfaces are 1: 100 lozenges, by cooperating installation with slide carriage 6 wedge shape installed surfaces.By regulating the right static pressure piece 19 of regulating, guarantee liquid oil film thickness under the different loads, thereby guarantee the rigidity of enclosed hydrostatic slideway.By this enclosed hydrostatic slideway structure of regulating, can realize the Installation and Debugging of hydrostatic slideway easily, be applicable to the different loads situation flexibly, improve efficiency of assembling, reduce the guide rail machining accuracy, effectively reduce cost.
The oblique beam structure of described high accuracy aspherical mirror machining lathe is driven by two dull and stereotyped linear electric motors, sees Fig. 1.Can produce very big suction between the single dull and stereotyped linear electric motors primary and secondary, directly cause the frame for movement distortion, influence the precision of lathe.For reducing of the influence of dull and stereotyped linear electric motors suction, two dull and stereotyped linear electric motors are vertically installed frame for movement.Dual linear motor secondary 8 and 13 is installed in left motor respectively and installs on side plate 7 and the right motor installation side plate 14, and linear electric motors elementary 9 and 12 are installed in respectively on T type linear electric motors mount pad 11 and the elementary installation rebound 10.For T type linear electric motors mount pad 11, stressed schematic diagram is seen shown in Figure 2, motor suction F1 and F2 are for T type linear electric motors mount pad 11, can cancel out each other, slide carriage 6 is not subjected to the deformation effect of dull and stereotyped linear electric motors suction substantially, improves the rigidity of slide carriage 6 and the precision of beam part, when guaranteeing that beam part has enough rigidity, effectively reduce the machine tool component quality, improved the dynamic characteristic of beam part.
Claims (4)
1. oblique beam structure that is used for high accuracy aspherical mirror machining lathe, this oblique beam structure comprise 45 ° of oblique beams, slide carriage, can regulate enclosed hydrostatic slideway structure, the opposed mounting structure of two dull and stereotyped linear electric motors.It is characterized in that:
1) 45 ° of oblique beam inclination mounting structures have effectively improved the force-bearing situation of crossbeam, reduce the two dimension distortion;
2) can regulate enclosed hydrostatic slideway structure, the fluid pressure piece is fixed by 1: 100 wedge shape installed surface, can conveniently realize the adjusting of oil film thickness;
3) two dull and stereotyped linear electric motors adopt opposed installation, and the motor suction of cancelling out each other reduces the influence of suction to frame for movement, has largely improved the parts precision;
This beam structure has the advantages that quality is little, force-bearing situation good, rigidity is high, at utmost reduce the influence of linear electric motors suction, has guaranteed high rigidity, high accuracy, the high dynamic performance of lathe beam part.
2. according to the described a kind of oblique beam structure that is used for high accuracy aspherical mirror machining lathe of claim 1, it is characterized in that: 45 ° of inclination installed surfaces, improved the crossbeam stressing conditions, the weight of effectively having decomposed beam part and Z spindle unit, reduced load request to hydrostatic slideway, reduction has effectively reduced the two-dimentional deflection deformation of crossbeam to the requirement of hydraulic system, has reduced processing cost.
3. according to the described a kind of oblique beam structure that is used for high accuracy aspherical mirror machining lathe of claim 1, it is characterized in that: can regulate enclosed hydrostatic slideway structure, the fluid pressure piece is fixed by 1: 100 wedge shape installed surface, can conveniently realize the adjusting of hydraulic oil film thickness, be applicable to the situation of different loads flexibly.
4. according to the described a kind of oblique beam structure that is used for high accuracy aspherical mirror machining lathe of claim 1, it is characterized in that: the suction of dull and stereotyped linear electric motors has a strong impact on the precision of frame for movement, two dull and stereotyped linear electric motors adopt vertical opposed installation, for the installing plate motor suction of cancelling out each other, reduce the influence of suction, guaranteed the precision and the performance of parts frame for movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110070128.1A CN102248407B (en) | 2011-03-23 | 2011-03-23 | Inclined beam structure for high-precision aspheric surface machining machine tool |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110070128.1A CN102248407B (en) | 2011-03-23 | 2011-03-23 | Inclined beam structure for high-precision aspheric surface machining machine tool |
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| CN102248407A true CN102248407A (en) | 2011-11-23 |
| CN102248407B CN102248407B (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110070128.1A Expired - Fee Related CN102248407B (en) | 2011-03-23 | 2011-03-23 | Inclined beam structure for high-precision aspheric surface machining machine tool |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632440A (en) * | 2012-05-02 | 2012-08-15 | 西安交通大学 | Large-size non-spherical grinding machine based on step-shaped cross beam |
| CN102658483A (en) * | 2012-05-22 | 2012-09-12 | 湖南军创科梦数控机床有限公司 | Zero-clearance movement high-precision machining vertical machine tool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490125A (en) * | 2003-08-22 | 2004-04-21 | 中国人民解放军国防科学技术大学 | Non-spherical optical component composite machining and testing machine tools |
| JP3847437B2 (en) * | 1998-02-04 | 2006-11-22 | 株式会社ジェイテクト | Linear motor driven machine tool |
| CN101323097A (en) * | 2008-07-28 | 2008-12-17 | 中国人民解放军国防科学技术大学 | Magnetorheological finishing device for super large caliber aspheric surface optical part |
| US20100050832A1 (en) * | 2008-09-04 | 2010-03-04 | Mori Seiki Co., Ltd. | Ultra-precision machine tool |
-
2011
- 2011-03-23 CN CN201110070128.1A patent/CN102248407B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3847437B2 (en) * | 1998-02-04 | 2006-11-22 | 株式会社ジェイテクト | Linear motor driven machine tool |
| CN1490125A (en) * | 2003-08-22 | 2004-04-21 | 中国人民解放军国防科学技术大学 | Non-spherical optical component composite machining and testing machine tools |
| CN101323097A (en) * | 2008-07-28 | 2008-12-17 | 中国人民解放军国防科学技术大学 | Magnetorheological finishing device for super large caliber aspheric surface optical part |
| US20100050832A1 (en) * | 2008-09-04 | 2010-03-04 | Mori Seiki Co., Ltd. | Ultra-precision machine tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632440A (en) * | 2012-05-02 | 2012-08-15 | 西安交通大学 | Large-size non-spherical grinding machine based on step-shaped cross beam |
| CN102658483A (en) * | 2012-05-22 | 2012-09-12 | 湖南军创科梦数控机床有限公司 | Zero-clearance movement high-precision machining vertical machine tool |
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| CN102248407B (en) | 2014-04-23 |
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