CN103406765A - Guide rail and sliding block mechanism of sliding block type hydrostatic guide rail - Google Patents
Guide rail and sliding block mechanism of sliding block type hydrostatic guide rail Download PDFInfo
- Publication number
- CN103406765A CN103406765A CN2012105951362A CN201210595136A CN103406765A CN 103406765 A CN103406765 A CN 103406765A CN 2012105951362 A CN2012105951362 A CN 2012105951362A CN 201210595136 A CN201210595136 A CN 201210595136A CN 103406765 A CN103406765 A CN 103406765A
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- CN
- China
- Prior art keywords
- guide rail
- sliding block
- slide block
- oil
- pressure oil
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a guide rail and sliding block mechanism of a sliding block type hydrostatic guide rail, and relates to parts of the sliding block type hydrostatic guide rail. The guide rail and sliding block mechanism comprises a guide rail with bearing faces at different angles. The horizontal angle of the upper bearing face of the guide rail is 20 degrees. The angle of the lower bearing face of the guide rail is 40 degrees. The guide rail and sliding block mechanism further comprises a sliding block with different oil cavity areas. The inner shape of the sliding block is a U-shaped groove with a downward opening. The upper portion of the groove wall and the lower portion of the groove wall are respectively provided with two bearing faces. A large pressure oil cavity is formed in each upper bearing face. A small pressure oil cavity is formed in each lower bearing face. The bearing capacity of the hydrostatic guide rail is effectively improved. The horizontal angles of the bearing faces of the sliding block are consistent with the horizontal angles of the bearing faces of the guide rail. The sliding block and the bearing faces of the guide rail are matched, and a certain gap is reserved between the sliding block and the bearing faces of the guide rail. Four oil inlet holes are formed in the sliding block, pressure oil can enter the oil cavities through the oil inlet holes, a pressure oil film is formed between the sliding block and the guide rail, and the hydrostatic effect is generated. Oil returning grooves are formed in the peripheries of the pressure oil cavities and communicated with an oil sucking pump to guarantee that the returned oil in the pressure oil cavities is in the negative pressure, and the hydrostatic stability is effectively improved.
Description
Technical field
The present invention relates to the matching used standarized component of high-precision or heavily loaded lathe, especially relevant with a kind of slide block type hydrostatic slideway.
Background technology
In medium-and-large-sized, high-precision machine tool, extensively adopt the roller line slideway (slide block type) grown up in nearly ten years, at this guide rail, formed standardization, seriation, general-purpose product.But this guide rail exists inborn defect, because being rolls to transmit rectilinear motion, absorbing is poor, static friction force and dynamic friction resistance exist difference, affect to a certain extent the kinematic accuracy of lathe, particularly larger in the cutting force change, velocity variations can affect machine finish on lathe frequently.Therefore a lot of lathe manufactory is all at the self design hydrostatic slideway, but structure is multifarious, can't form standardization, seriation, unitized standarized component, popularization and the raising of static pressure technology have seriously been hindered, the present invention is directed to above-mentioned state of the art, innovative design slide block type closed hydrostatic slideway slide block, for condition has been created in hydrostatic slideway standardization, seriation.
Summary of the invention
For addressing the above problem, the invention provides a kind of guide rail and slide block mechanism of slide block type hydrostatic slideway, this mechanism is comprised of guide rail and slide block, guide rail has two loading ends, the horizontal angle that wherein goes up loading end is 20 °, effectively strengthened the bearing capacity of loading end, the horizontal angle of lower loading end is 40 °, has effectively strengthened the rigidity of guide rail.
For with guide rail, installing, the slide block profile is consistent with the guide rail profile, and slide block also has two loading ends, wherein goes up loading end and has two larger area oil pockets, and lower loading end has two than the oil pocket of small size.And upper loaded area (Ae
1) be greater than lower loaded area (Ae
2) its Area Ratio is m=Ae
1/ Ae
2=1.3～1.5, reasonably increased the effective bearing capacity of static pressure.
The present invention focuses on slide block the carrying oil pocket of slide block type hydrostatic slideway and has formed standarized component.
Four fuel feed holes that have on slide block communicate with four pressure oil cavities, its compact conformation, and the static pressure function concentrates on slide block, and the hydrostatic slideway standardization is come true, and while pressure oil cavity surrounding is provided with oil-recovery tank and is connected with oil scavenge pump, and the enclosed oil return is come true.
On slide block of the present invention, have two seal grooves, be convenient to the installation of seal.
The accompanying drawing explanation:
Fig. 13 dimensional drawing of the present invention.
Fig. 2 practical application schematic diagram of the present invention.
The stressed schematic diagram of Fig. 3 slide block.
Fig. 4 slide block type hydrostatic slideway slide block structure schematic diagram.
The specific embodiment
By reference to the accompanying drawings the specific embodiment of invention is described.
As shown in Figure 1, the present invention is comprised of guide rail 1 and slide block 2, wherein static pressure slide block 2 In Figure 2-4, in it, shape is to have downward Baltimore groove, cell wall respectively has two each and every one loading ends up and down, upper loading end is opened large-area pressure oil cavity 6,8, and its horizontal angle is 20 °, has effectively improved the bearing capacity of hydrostatic slideway; Lower loading end has the pressure oil cavity 7,9 of small size, and its horizontal angle is 40 °, has effectively improved the rigidity of slide block.
The loading end of guide rail matches with the loading end of slide block, and has certain interval, the hydrostatic slideway gap difference of different size.
Oil supply system pressure oil enters static-pressure oil chamber 6,7,8,9, mineralization pressure oil film by the fuel feed hole 10,11,12,13 of slide block; Pressure oil from pressure oil cavity flows out, be drawn into fuel tank through drain pan 14,15,16,17 by oil absorption system and form the enclosed oil return system, and be that negative pressure is discharged, and formed complete hydrostatic guide rail system at this point.
Claims (6)
1. the guide rail of a slide block type hydrostatic slideway and slide block mechanism, comprise the guide rail (1) and the slide block (2) that with bed piece guide rail seat surface, are fastenedly connected, it is characterized in that guide rail has two loading ends, the level angle of wherein going up loading end is 20 °, and lower loading end horizontal angle is 40 °; Slide block (2) is the main body of hydrostatic slideway, the shape Baltimore groove that Open Side Down in it, and cell wall respectively has two loading ends up and down, on upper loading end, has larger area pressure oil cavity (6; 8), on lower loading end, have than the pressure oil cavity of small size (7; 9).
2. guide rail according to claim 1 and slide block mechanism, is characterized in that the upper loaded area (Ae of slide block (2)
1) be greater than lower loaded area (Ae
2) its Area Ratio is m=Ae
1/ Ae
2=1.3～1.5.
3. guide rail according to claim 1 and slide block mechanism, is characterized in that the horizontal angle of the upper and lower loading end of slide block (2) is consistent with guide rail (1).
4. guide rail according to claim 1 and slide block mechanism, have certain interval between the loading end of slide block (2) and guide rail (1), and dissimilar guide rail has its value of different gaps between 0.02～0.06.
5. guide rail according to claim 1 and slide block mechanism, four oil-ins of slide block (2) upper shed, be communicated with pressure oil cavity and oil supply system.
6. guide rail according to claim 1 and slide block mechanism, the pressure oil cavity surrounding of slide block (2) has oil-recovery tank and is connected with oil scavenge pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105951362A CN103406765A (en) | 2012-12-18 | 2012-12-18 | Guide rail and sliding block mechanism of sliding block type hydrostatic guide rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105951362A CN103406765A (en) | 2012-12-18 | 2012-12-18 | Guide rail and sliding block mechanism of sliding block type hydrostatic guide rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103406765A true CN103406765A (en) | 2013-11-27 |
Family
ID=49599831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105951362A Pending CN103406765A (en) | 2012-12-18 | 2012-12-18 | Guide rail and sliding block mechanism of sliding block type hydrostatic guide rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103406765A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105773178A (en) * | 2016-04-21 | 2016-07-20 | 广东工业大学 | Vertical static-pressure guide rail and oil return device |
| US10456881B1 (en) | 2018-11-22 | 2019-10-29 | Industrial Technology Research Institute | Machine tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169513A (en) * | 1996-03-27 | 1998-01-07 | 高级工程系统运营及产品公司 | Modular hydrostatic bearing device with carriage form-fit to profile rail |
| US20080199111A1 (en) * | 2005-05-25 | 2008-08-21 | Schaeffler Kg | Hydrostatic Bearing |
| US20090252441A1 (en) * | 2006-04-20 | 2009-10-08 | Schaeffler Kg | Hydrostatic profile rail guide |
| CN101905443A (en) * | 2010-07-16 | 2010-12-08 | 湖南宇环同心数控机床有限公司 | Direct-drive asymmetric closed rectangular hydrostatic guide rail |
| CN102359496A (en) * | 2007-07-03 | 2012-02-22 | 谢夫勒科技有限两合公司 | Seal used for hydrostatic linear guide |
| CN202964011U (en) * | 2012-12-18 | 2013-06-05 | 芜湖陀曼精机科技有限公司 | Slide block type hydrostatic guide rail with bearing surfaces of different horizontal angles and slide block with oil cavities of different sizes |
-
2012
- 2012-12-18 CN CN2012105951362A patent/CN103406765A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169513A (en) * | 1996-03-27 | 1998-01-07 | 高级工程系统运营及产品公司 | Modular hydrostatic bearing device with carriage form-fit to profile rail |
| US20080199111A1 (en) * | 2005-05-25 | 2008-08-21 | Schaeffler Kg | Hydrostatic Bearing |
| US20090252441A1 (en) * | 2006-04-20 | 2009-10-08 | Schaeffler Kg | Hydrostatic profile rail guide |
| CN102359496A (en) * | 2007-07-03 | 2012-02-22 | 谢夫勒科技有限两合公司 | Seal used for hydrostatic linear guide |
| CN101905443A (en) * | 2010-07-16 | 2010-12-08 | 湖南宇环同心数控机床有限公司 | Direct-drive asymmetric closed rectangular hydrostatic guide rail |
| CN202964011U (en) * | 2012-12-18 | 2013-06-05 | 芜湖陀曼精机科技有限公司 | Slide block type hydrostatic guide rail with bearing surfaces of different horizontal angles and slide block with oil cavities of different sizes |
Non-Patent Citations (1)
| Title |
|---|
| 上海机床厂、"七•二一"工人大学磨床研究所: "《磨床液压》", 31 December 1976, 上海机床厂出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105773178A (en) * | 2016-04-21 | 2016-07-20 | 广东工业大学 | Vertical static-pressure guide rail and oil return device |
| US10456881B1 (en) | 2018-11-22 | 2019-10-29 | Industrial Technology Research Institute | Machine tool |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131127 |
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| RJ01 | Rejection of invention patent application after publication |