CN102248406B - Z-axis part for high-precision aspheric surface machine tool - Google Patents
Z-axis part for high-precision aspheric surface machine tool Download PDFInfo
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- CN102248406B CN102248406B CN201110070114.XA CN201110070114A CN102248406B CN 102248406 B CN102248406 B CN 102248406B CN 201110070114 A CN201110070114 A CN 201110070114A CN 102248406 B CN102248406 B CN 102248406B
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- pressure piece
- fluid pressure
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Abstract
The invention discloses a Z-axis part for a high-precision aspheric surface machine tool, which belongs to the field of advanced manufacturing. The invention mainly relates a square box type closed hydrostatic guide rail structure and a closed hydrostatic guide rail differential fine adjustment structure. The square box type closed hydrostatic guide rail structure consists of a square box type guide rail seat 4, a square box type guide rail seat cover plate 11, a square ram guide rail 8 and hydrostatic blocks 7, 10, 12, 16, 17, 18 and 19; and the precision and rigidity of the closed hydrostatic guide rail are improved, and the processing precision of the guide rail mechanical structure. Through the closed hydrostatic guide rail differential fine adjustment structure of the hydrostatic guide rail of the Z-axis part, the difficult mounting and debugging problem of the hydrostatic guide rail is solved, the micrometer regulation of the thickness of a hydraulic oil film is realized, and the motion precision of a square box type closed hydrostatic guide rail is improved.
Description
Technical field
The invention belongs to advanced manufacture field, is the improvement to traditional closed hydrostatic slideway structure, by differential differential tuning screw rod and the effective combination of wedge shape installed surface, realizes micron order oil film thickness and regulates.
Background technology
Along with scientific and technical development, hydrostatic slideway technology has progressively expanded range of application, and high accuracy, high efficiency and heavy load lathe more and more adopt hydrostatic slideway technology at present.It is little that hydrostatic slideway has coefficient of friction, and low-speed motion is steady, and bearing capacity is large, and rigidity is high, and kinematic accuracy is high, and oil film has the effect of homogenizing error and the advantage such as guide precision retentivity is good.Requirement on machining accuracy to guide rail when hydrostatic slideway is applied to accurate ultra lathe is higher, and processing cost is higher.
Summary of the invention
The object of the invention is precision and rigidity in order to improve lathe Z axis parts closed hydrostatic slideway, reduce guide rail difficulty of processing, the micron order of realizing hydraulic oil film thickness by closed hydrostatic slideway differential differential tuning structure regulates, and reduces assembling and setting difficulty and cost.
Technical scheme of the present invention is:
Z axis parts adopt square-box-shaped closed hydrostatic slideway structure, on the one hand by the frame for movement of sealing, improve the rigidity of hydrostatic slideway seat and the ability of the tilting moment that opposing external applied load produces; Pass through on the other hand independently fluid pressure piece, reduce the requirement on machining accuracy of square-box-shaped closed guideway seat, the high-precision requirement of guide rail is transformed on fluid pressure piece, realize efficiently, process cheaply.
The assembling and setting of hydrostatic slideway is more difficult, and hydraulic oil film thickness directly has influence on rigidity and the precision of hydrostatic slideway, thereby directly reduces the quality of processing parts.Oil film thickness is excessive, the poor rigidity of guide rail, and precision is low; Oil film thickness is too small, high to the required precision of the each parts of guide rail, and actual processing and assembly technology are difficult to realize.Therefore, by closed hydrostatic slideway differential differential tuning structure, can effectively address the above problem, according to the situation of different external applied loads, realize easily and flexibly the micron-sized adjusting of hydraulic oil film thickness, the superior function of performance hydrostatic slideway.
Brief description of the drawings
Fig. 1 is a kind of Z axis parts overall structure schematic diagram for high-precision aspheric surface machine tool.
Fig. 2 is square-box-shaped closed hydrostatic slideway structure chart.
Fig. 3 is closed hydrostatic slideway differential differential tuning structural representation.
Detailed description of the invention
Further illustrate embodiment below in conjunction with accompanying drawing.
Described a kind of Z axis modular construction for high-precision aspheric surface machine tool is shown in Fig. 1 and Fig. 2, comprises motor 1, motor cabinet 2, motor cabinet upper connecting base 3, square-box-shaped track base 4, differential differential tuning screw rod 5, side adjusting seat 6 and 9, side wedge shape fluid pressure piece 7 and 10, square ram gib 8, square-box-shaped track base cover plate 11, cover plate wedge shape fluid pressure piece 12 and 15, cover plate adjusting seat 13 and 14, side fixer briquetting 16 and 17, bottom surface fixer briquetting 18 and 19.
Described a kind of Z axis parts for high-precision aspheric surface machine tool, are arranged on machine tool beam slide carriage by square-box-shaped track base 4.Z axis parts square-box-shaped closed hydrostatic slideway structure is shown in Fig. 2, is made up of square-box-shaped track base 4, square-box-shaped track base cover plate 11, square ram gib 8 and fluid pressure piece 7,10,12,15,16,17,18,19.The integrated hydraulic guide rail structure of sealing has higher rigidity, can effectively resist the tilting moment that external applied load produces, and has improved kinematic accuracy and the rigidity of Z axis parts.On the other hand, owing to adopting independently fluid pressure piece 7,10,12,15,16,17,18,19, reduce the requirement on machining accuracy to square-box-shaped track base 4 and square-box-shaped track base cover plate 11, the required precision of hydrostatic slideway is transformed on fluid pressure piece, can realize by the method for accurate grinding and grinding the high accuracy processing of fluid pressure piece, reach high accuracy, efficiently, processing and manufacturing cheaply.
Described a kind of Z axis parts for high-precision aspheric surface machine tool, the adjusting of closed hydrostatic slideway oil film thickness adopts closed hydrostatic slideway differential differential tuning structure, sees Fig. 3.Differential differential tuning screw rod 5 is the screw thread of two sections of M4 × 0.5 and M5 × 0.8, and screw revolves and turns around, and fluid pressure piece moves 0.3mm.Fluid pressure piece 16,17,18,19 installed surfaces are plane, are directly installed on square-box-shaped track base 4, ensure by processing that respectively fluid pressure piece is coplanar.The differential differential tuning screw rod 5 that regulates side moves side wedge shape fluid pressure piece 7 and 10 on the wedge-like engagement face of 1: 100, until reach the hydraulic oil film thickness of technical requirement, the hold-down screw at fixation side wedge shape fluid pressure piece 7 and 10 back sides is fixed.Regulate the differential differential tuning screw rod 5 on square-box-shaped track base cover plate 11, cover plate wedge shape fluid pressure piece 12 and 15 is moved on the wedge-like engagement face of 1: 100, until reach the hydraulic oil film thickness of technical requirement, the hold-down screw at securing cover plate wedge shape fluid pressure piece 12 and 15 back sides is fixed.This closed hydrostatic slideway differential differential tuning structure efficiently solves the problem of the assembling and setting difficulty of hydrostatic slideway, according to the situation of different external applied loads, realize easily and flexibly the adjusting of hydraulic oil film thickness, improve the kinematic accuracy of square-box-shaped closed hydrostatic slideway simultaneously.
Claims (1)
1. for Z axis parts for high-precision aspheric surface machine tool, comprise square-box-shaped closed hydrostatic slideway structure, closed hydrostatic slideway differential differential tuning structure, is characterized in that:
1) square-box-shaped closed hydrostatic slideway structure, has advantages of high rigidity, high guiding accuracy, can effectively resist the tilting moment that external load produces;
Square-box-shaped closed hydrostatic slideway structure is made up of square-box-shaped track base (4), square-box-shaped track base cover plate (11), square ram gib (8), first liquid static pressure piece (7), second liquid static pressure piece (10), the 3rd fluid pressure piece (12), the 4th fluid pressure piece (15), the 5th fluid pressure piece (16), the 6th fluid pressure piece (17), the 7th fluid pressure piece (18) and the 8th fluid pressure piece (19); Square ram gib (8) is installed in square-box-shaped track base (4), and the top of square-box-shaped track base (4) is provided with square-box-shaped track base cover plate (11); First liquid static pressure piece (7) and second liquid static pressure piece (10) are installed on a side of square-box-shaped track base (4), the 5th fluid pressure piece (16) and the 6th fluid pressure piece (17) are installed on another side of square-box-shaped track base (4), the 7th fluid pressure piece (18) and the 8th fluid pressure piece (19) are installed on the bottom surface of square-box-shaped track base (4), and the 3rd fluid pressure piece (12) and the 4th fluid pressure piece (15) are installed on square-box-shaped track base cover plate (11); Adopt independently eight fluid pressure pieces (7,10,12,15,16,17,18,19) to reduce the requirement on machining accuracy to square-box-shaped track base (4) and square-box-shaped track base cover plate (11), the required precision of hydrostatic slideway is transformed on fluid pressure piece;
2) closed hydrostatic slideway differential differential tuning structure, can regulate fluid pressure piece trace on the wedge shape installed surface of 1:100 mobile, can realize the micron-sized adjusting of liquid oil film thickness flexible and efficiently;
Closed hydrostatic slideway differential differential tuning structure comprises differential differential tuning screw rod (5), and differential differential tuning screw rod (5) is the screw thread of two sections of M4 × 0.5 and M5 × 0.8, and screw revolves and turns around, and fluid pressure piece moves 0.3mm; The installed surface of the 5th fluid pressure piece (16), the 6th fluid pressure piece (17), the 7th fluid pressure piece (18) and the 8th fluid pressure piece (19) is plane, is directly installed on square-box-shaped track base (4); First liquid static pressure piece (7), second liquid static pressure piece (10), the 3rd fluid pressure piece (12) and the 4th fluid pressure piece (15) are wedge shape fluid pressure piece; First liquid static pressure piece (7) and second liquid static pressure piece (10) are an offside wedge shape fluid pressure piece, and the 3rd fluid pressure piece (12) and the 4th fluid pressure piece (15) are a pair of cover plate wedge shape fluid pressure piece; First liquid static pressure piece (7) and second liquid static pressure piece (10) are installed on square-box-shaped track base (4) side by an offside adjusting seat and pair of differential fine setting screw rod (5), and the 3rd fluid pressure piece (12) and the 4th fluid pressure piece (15) are installed on square-box-shaped track base cover plate (11) by a pair of cover plate adjusting seat and pair of differential fine setting screw rod (5); Regulate the differential differential tuning screw rod (5) of side, first liquid static pressure piece (7) and second liquid static pressure piece (10) are moved on the wedge-like engagement face of 1:100, until meet the requirements of hydraulic oil film thickness, the hold-down screw at fixing first liquid static pressure piece (7) and second liquid static pressure piece (10) back side is fixed; Regulate the differential differential tuning screw rod (5) on square-box-shaped track base cover plate (11), the 3rd fluid pressure piece (12) and the 4th fluid pressure piece (15) are moved on the wedge-like engagement face of 1:100, until meet the requirements of hydraulic oil film thickness, the hold-down screw of fixing the 3rd fluid pressure piece (12) and the 4th fluid pressure piece (15) back side is fixed;
The square-box-shaped closed hydrostatic slideway of these Z axis parts, precision is high, rigidity is high, and hydraulic oil film thickness is easy to adjust, and Z axis parts can be realized the feed motion of high accuracy submicron order, carry out accurate ultra machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110070114.XA CN102248406B (en) | 2011-03-23 | 2011-03-23 | Z-axis part for high-precision aspheric surface machine tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110070114.XA CN102248406B (en) | 2011-03-23 | 2011-03-23 | Z-axis part for high-precision aspheric surface machine tool |
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| CN102248406A CN102248406A (en) | 2011-11-23 |
| CN102248406B true CN102248406B (en) | 2014-08-06 |
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| CN201110070114.XA Expired - Fee Related CN102248406B (en) | 2011-03-23 | 2011-03-23 | Z-axis part for high-precision aspheric surface machine tool |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632444A (en) * | 2012-05-02 | 2012-08-15 | 西安交通大学 | High-precision aspheric grinding machine |
| CN102632443B (en) * | 2012-05-02 | 2015-08-26 | 西安交通大学 | A kind of three axle aspheric surface grinding machines |
| TWI478789B (en) | 2012-10-19 | 2015-04-01 | Ind Tech Res Inst | Assembly of arm structure |
| CN105666149A (en) * | 2016-02-29 | 2016-06-15 | 西安交通大学 | Opening type precise gas static pressure guide rail assembly for ultra-precise milling and grinding machine tool |
| CN106425532A (en) * | 2016-12-08 | 2017-02-22 | 济南二机床集团有限公司 | All-coated static-pressure ram structure of numerical control gantry machine tool |
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| CN1834483A (en) * | 2006-04-13 | 2006-09-20 | 潘旭华 | Static pressure slideway able to precision position and its positioning method |
| CN101280804A (en) * | 2008-05-09 | 2008-10-08 | 潘旭华 | Static pressure guiding rail with adjustable film thickness and regulating method thereof |
| CN101357438A (en) * | 2008-09-12 | 2009-02-04 | 齐齐哈尔二机床(集团)有限责任公司 | Turnover swivel table |
| CN101829904A (en) * | 2010-01-26 | 2010-09-15 | 西安交通大学 | Closed hydrostatic slideway |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5308280B2 (en) * | 2009-08-30 | 2013-10-09 | 株式会社タンケンシールセーコウ | Static pressure gas bearing |
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2011
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Patent Citations (4)
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|---|---|---|---|---|
| CN1834483A (en) * | 2006-04-13 | 2006-09-20 | 潘旭华 | Static pressure slideway able to precision position and its positioning method |
| CN101280804A (en) * | 2008-05-09 | 2008-10-08 | 潘旭华 | Static pressure guiding rail with adjustable film thickness and regulating method thereof |
| CN101357438A (en) * | 2008-09-12 | 2009-02-04 | 齐齐哈尔二机床(集团)有限责任公司 | Turnover swivel table |
| CN101829904A (en) * | 2010-01-26 | 2010-09-15 | 西安交通大学 | Closed hydrostatic slideway |
Non-Patent Citations (2)
| Title |
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| 超精密磨削光学非球曲面用中心高微调机构;陈明君等;《制造技术与机床》;20000930(第9期);第12-13页 * |
| 陈明君等.超精密磨削光学非球曲面用中心高微调机构.《制造技术与机床》.2000,(第9期),第12-13页. |
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