CN102248407B - 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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- CN102248407B CN102248407B CN201110070128.1A CN201110070128A CN102248407B CN 102248407 B CN102248407 B CN 102248407B CN 201110070128 A CN201110070128 A CN 201110070128A CN 102248407 B CN102248407 B CN 102248407B
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- linear electric
- electric motors
- beam structure
- static pressure
- pressure piece
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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 manufacture field, the big-and-middle-sized bed of tradition beam structure is improved, use this beam structure can realize neatly the adjusting of closed hydrostatic slideway oil film thickness, the direct driving technologies that realizes low-cost two dull and stereotyped linear electric motors, this beam structure has the feature 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 to the requirements such as high accuracy, high rigidity and high dynamic characteristic.The key technology of high accuracy machining tool is as guide rail form, and type of drive etc. have determined the performance of lathe to a great extent.Using liquid hydrostatic slideway technology, Linear Motor Direct Drives System can be realized the requirement to lathe high accuracy, high rigidity and high dynamic characteristic.
Summary of the invention
The object of the invention is in order to reduce to greatest extent caliber high-precision aspheric surface optical accessory machining tool part quality, improve hydrostatic slideway precision and rigidity, finally realize high accuracy, high rigidity, high dynamic characteristic.
Technical scheme of the present invention is:
Adopt 45 ° of oblique beams to improve beam force situation, effectively decomposed the weight of beam part and Z axis parts, reduced the load request to hydrostatic slideway, reduce the requirement to hydraulic system, effectively improved guide precision, reduce costs;
Adjustable closed hydrostatic slideway structure, fluid pressure piece is fixed by the wedge shape installed surface of 1: 100, can conveniently realize the adjusting of hydraulic oil film thickness, is applicable to flexibly the situation of different loads;
Two dull and stereotyped linear electric motors adopt vertical opposed installation, for the installing plate motor suction of cancelling out each other, reduce the impact of suction on frame for movement, have guaranteed precision and the performance of parts.
Requirement based on 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 adjustable closed hydrostatic slideway structure.
Accompanying drawing explanation
Fig. 1 is the oblique beam structure chart of high-precision aspheric surface machine tool.
Fig. 2 is two stressed schematic diagrames of the opposed mounting structure of dull and stereotyped linear electric motors.
The specific embodiment
Below in conjunction with accompanying drawing, further illustrate embodiment.
Described a kind of oblique beam structure for high-precision aspheric surface machine tool is shown in Fig. 1, comprise 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 motor is installed side plate 7, linear electric motors secondary 8, linear electric motor primary 9, elementary installation rebound 10, T-shaped linear electric motors mount pad 11, linear electric motor primary 12, linear electric motors secondary 13, right motor is installed side plate 14, linear electric motors mounting base 15, right static pressure piece 16, upper right static pressure piece 17, under guide rail, press strip 18, right regulating static piece 19, bottom right static pressure piece 20, under slide carriage, press strip 21.
The oblique beam structure of described high-precision aspheric surface machine tool, adopt 45 ° of oblique beams 1, improved beam force situation, the weight of slide carriage 6 and lathe Z axis parts is decomposed, press strip 18 spigot surfaces and weight-bearing surface load under guide rail ceiling molding 5 and guide rail are reduced, reduce guide rail press strip stress deformation, also reduce the requirement to fluid pressure system, be conducive to improve bearing capacity and the guiding accuracy of guide rail.
The oblique beam structure of described high-precision aspheric surface machine tool, adopt adjustable closed hydrostatic slideway structure, see Fig. 1, comprise under right static pressure piece 16, upper right static pressure piece 17, guide rail press strip 21 under press strip 18, right regulating static piece 19, bottom right static pressure piece 20, slide carriage.The lozenges that right regulating static piece 19 bottom surface installed surfaces are 1: 100, by coordinating installation with slide carriage 6 wedge shape installed surfaces.By regulating right regulating static piece 19, guarantee liquid oil film thickness under different loads, thereby guarantee the rigidity of closed hydrostatic slideway.By this adjustable closed hydrostatic slideway structure, can realize easily the installation and debugging of hydrostatic slideway, be applicable to flexibly different loads situation, improve efficiency of assembling, reduce guide rail machining accuracy, effectively reduce cost.
The oblique beam structure of described high-precision aspheric surface machine tool, is driven by two dull and stereotyped linear electric motors, sees Fig. 1.Single dull and stereotyped linear electric motor primary and secondary between can produce very large suction, directly cause frame for movement distortion, affect the precision of lathe.For reducing the impact of dull and stereotyped linear electric motors suction on frame for movement, two dull and stereotyped linear electric motors are vertically installed.Dual linear motor secondary 8 and 13 is arranged on respectively left motor and installs on side plate 7 and right motor installation side plate 14, and linear electric motor primary 9 and 12 is arranged on respectively on T-shaped linear electric motors mount pad 11 and elementary installation rebound 10.For T-shaped linear electric motors mount pad 11, stressed schematic diagram as shown in Figure 2, motor suction F1 and F2 are for T-shaped linear electric motors mount pad 11, can cancel out each other, slide carriage 6 is not subject 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 machine tool component quality, improved the dynamic characteristic of beam part.
Claims (1)
1. the oblique beam structure for high-precision aspheric surface machine tool, it is characterized in that, comprise 45 ° of oblique beams (1) and be arranged on slide carriage (6), adjustable closed hydrostatic slideway structure, the opposed mounting structure of two dull and stereotyped linear electric motors on the inclined-plane of 45 ° of oblique beams (1);
The oblique mounting structure of 45 ° of oblique beams (1), decomposes the weight of slide carriage (6) and lathe Z axis parts; Effectively improve the force-bearing situation of crossbeam, reduced two dimension distortion;
Adjustable closed hydrostatic slideway structure, comprises under the right static pressure piece (16) that matches with slide carriage (6), upper right static pressure piece (17), guide rail press strip (21) under press strip (18), right regulating static piece (19), bottom right static pressure piece (20) and slide carriage; Right static pressure piece (16), right regulating static piece (19) are arranged at press strip under guide rail (18) left and right sides, and upper right static pressure piece (17), bottom right static pressure piece (20) are arranged at the upper and lower both sides of press strip under guide rail (18); Press strip under slide carriage (21) is arranged at bottom right static pressure piece (20) below; The lozenges that right regulating static piece (19) bottom surface installed surface is 1:100, by coordinating installation with slide carriage (6) wedge shape installed surface, can conveniently realize the adjusting of oil film thickness;
Two dull and stereotyped linear electric motors adopt vertical opposed installation, and the motor suction of cancelling out each other, reduces the impact of suction on frame for movement, has largely improved parts precision; The opposed mounting structure of two dull and stereotyped linear electric motors comprises T-shaped linear electric motors mount pad (11), linear electric motors mounting base (15) and two linear electric motors; Linear electric motors mounting base (15) is arranged on the inclined-plane of 45 ° of oblique beams (1), and T-shaped linear electric motors mount pad (11) is arranged on linear electric motors mounting base (15); Two linear electric motors are installed on T-shaped linear electric motors mount pad (11) both sides and are positioned on linear electric motors mounting base (15); The suction of two linear electric motors is cancelled out each other for T-shaped linear electric motors mount pad (11);
This beam structure has the advantages that quality is little, force-bearing situation good, rigidity is high, at utmost reduce the impact of linear electric motors suction, has guaranteed high rigidity, high accuracy, the high dynamic performance of machine tool beam parts.
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102248407A CN102248407A (en) | 2011-11-23 |
| CN102248407B true 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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Families Citing this family (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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| 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 |
| CN100400225C (en) * | 2003-08-22 | 2008-07-09 | 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 |
| CN100593456C (en) * | 2008-07-28 | 2010-03-10 | 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 |
| US7845257B2 (en) * | 2008-09-04 | 2010-12-07 | Mori Seiki Co., Ltd. | Ultra-precision machine tool |
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- 2011-03-23 CN CN201110070128.1A patent/CN102248407B/en not_active Expired - Fee Related
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Granted publication date: 20140423 Termination date: 20180323 |