CN102039526B - Hydrostatic guide rail system of machine tool - Google Patents
Hydrostatic guide rail system of machine tool Download PDFInfo
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- CN102039526B CN102039526B CN201010566920.1A CN201010566920A CN102039526B CN 102039526 B CN102039526 B CN 102039526B CN 201010566920 A CN201010566920 A CN 201010566920A CN 102039526 B CN102039526 B CN 102039526B
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- oil pocket
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Abstract
The present invention relates to a kind of machine tool, especially a kind of hydrostatic guide rail system of machine tool.This system is by independently guide rail and static pressure block form, the static pressure block being positioned at top is oil gathering block, wherein, the middle part of oil gathering block has oil pocket, oil pocket is connected with spiral oil inlet pipe by oil connection, the internal diameter of spiral oil inlet pipe is 3-4mm, on oil gathering block and the periphery being positioned at oil pocket is provided with the oil pocket groove of annular, oil pocket groove is in being communicated with closed, and be communicated with oil pocket, oil pocket groove is provided with symmetrically arranged oil-out, oil-out is communicated with spiral flowline respectively by oil connection, the diameter of spiral flowline is 0.8-1mm, the air drain of annular is provided with in the outside of annular oil cavity groove, air drain is in being communicated with closed, gases at high pressure are had in air drain.It can eliminate the cyclic fluctuation of oil pressure, improves rigidity and the height of lubricating pad support, prevents hydraulic oil from leaking simultaneously, decrease environmental pollution, ensure that the clean of guide rail, improve the cleannes of hydraulic oil.
Description
Technical field
The present invention relates to a kind of machine tool, especially a kind of hydrostatic guide rail system of machine tool.
Background technology
Medium-and-large-sized machine tool is in order to reduce the friction of moving component, and one adopts hydrostatic slideway structure.Existing hydrostatic slideway is mainly divided into open type static pressure guide rail and closed hydrostatic slideway by version, is mainly divided into constant pressure oil supply hydrostatic slideway and constant current fuel feeding hydrostatic slideway by fuel feeding situation.No matter adopt that hydrostatic slideway, its operation principle is all provide hydraulic oil by oil pump, oil pocket is entered after magnetic valve, the pressure of oil is utilized to make two composition surfaces keep neat liquid friction, and ensureing that guide rail has good kinematic accuracy, this just requires to have higher oil film rigidity and the support of high-precision lubricating pad.Fluid friction has coefficient of friction little, and mechanical efficiency is high, and Long-Time Service is without wearing and tearing, and the advantages such as working motion is steady, therefore static pressure technology is widely used in airport.But be through long-term use, there is the defect of this following aspects in the hydrostatic guide rail system of existing structure: first, static pressure oil due to all static-pressure systems is all supplied by oil pump, no matter adopt which kind of pump, as vane pump, plunger displacement pump, gear pump etc., be all batch (-type) fuel feeding, there is the problem of oil pressure instability, simultaneously because the problems such as oil circuit distance, caliber cause guide rail oil pressure height everywhere not, oil pressure instability and oil pressure etc. all directly can not affect the precision of lathe yet; The second, oil film thickness is uncontrollable; 3rd, no matter be open type static pressure guide rail or closed hydrostatic slideway, all adopt hydraulic oil to open wide backflow, thus cause the pollution of environment, during simultaneously hydraulic oil backflow can by pollutions such as iron filings, dust, cutting fluids, precision machine tool accuracy, reduces the service life of lathe greatly.
Summary of the invention
The object of the invention is to propose a kind of hydrostatic guide rail system of machine tool, this system can eliminate the cyclic fluctuation of oil pressure, improves rigidity and the height of lubricating pad support, prevent hydraulic oil from leaking simultaneously, decrease environmental pollution, ensure that the clean of guide rail, improve the cleannes of hydraulic oil.
The present invention adopts following technical scheme to realize: a kind of hydrostatic guide rail system of machine tool, this system is by independently guide rail and static pressure block form, the static pressure block being positioned at top is oil gathering block, wherein, the middle part of oil gathering block has oil pocket, oil pocket is connected with spiral oil inlet pipe by oil connection, the internal diameter of spiral oil inlet pipe is 3-4mm, on oil gathering block and the periphery being positioned at oil pocket is provided with the oil pocket groove of annular, oil pocket groove is in being communicated with closed, and be communicated with oil pocket, oil pocket groove is provided with symmetrically arranged oil-out, oil-out is communicated with spiral flowline respectively by oil connection, the diameter of spiral flowline is 0.8-1mm, the air drain of annular is provided with in the outside of annular oil cavity groove, air drain is in being communicated with closed, gases at high pressure are had in air drain.
In the present invention, described oil pocket groove is at least arranged two oil-outs.
Describedly be connected with contiguous block respectively by oil connection with the spiral flowline that oil-out is communicated with, contiguous block is connected with device for recovering hydraulic oil by oil connection.
The invention has the beneficial effects as follows: the oil inlet pipe in the present invention and flowline are the less spiral oil pipe of internal diameter, the pipe effect of oil inlet pipe and the length of oil circuit can be increased by spiral helicine capillary oil pipe, thus the damping and amortization of hydraulic oil in increase oil pipe, the cyclic fluctuation of the oil pressure that elimination causes because of reasons such as oil pumps, effectively improve oil film stability of strutting system, improve rigidity and the high accuracy of lubricating pad support; Meanwhile, hydraulic oil refluxes in same oil pocket, can not produce and leak, decrease environmental pollution, also improves the cleannes of hydraulic oil, ensures the clean of guide rail; In addition, by arranging air drain, defining a gases at high pressure protecting wall in the periphery of static pressure oil, both cleaning of guide rail, protect again the static pressure face be combined with guide rail, prevent hydraulic oil from being polluted, substantially increase precision and the service life of lathe.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
Guide rail of the present invention is between the workbench of upper and lower two relative motions, as shown in Figure 1, by one group, independently guide rail and static pressure block form this system, static pressure block is fixedly connected with upper and lower workbench respectively, the static pressure block be wherein fixedly connected with the workbench being positioned at top is oil gathering block 1, and the middle part of oil gathering block 1 has oil pocket 9, and oil pocket 9 is connected with oil inlet pipe by oil connection 8, oil pump hydraulic oil out enters oil inlet pipe through magnetic valve, thus provides hydraulic oil for oil pocket 9.Described oil inlet pipe is spiral oil inlet pipe 7, and the internal diameter of spiral oil inlet pipe 7 is 1.6-2mm.For there is certain viscosity due to hydraulic oil, therefore hydraulic oil has certain damping and amortization, and spiral oil inlet pipe 7 can increase the pipe effect of oil inlet pipe and the length of oil circuit, thus effectively improve the damping of hydraulic oil in oil inlet pipe, stabilize the oil pressure flowing out into the hydraulic oil in oil pocket 9 from spiral oil inlet pipe 7.
Oil gathering block 1 periphery being positioned at oil pocket 9 is provided with the oil pocket groove 10 i.e. oil-recovery tank of annular, oil pocket groove 10 is in being communicated with closed, oil pocket groove 10 is provided with four oil-outs, and four oil-outs are symmetrical set, and four oil-outs are communicated with flowline respectively by oil connection 2 simultaneously.Identical with oil inlet pipe, flowline is spiral flowline 3, oil damping to increase, and the diameter of spiral flowline 3 is 0.8-1mm.Hydraulic oil flows into oil pocket 9, and is flowed out by the oil pocket groove 10 be communicated with oil pocket 9, makes hydraulic oil in oil pocket 9, form the circulating oil path closed, decreases environmental pollution, also improve the cleannes of hydraulic oil; Meanwhile, through the adjustment of spiral oil inlet pipe 7 and spiral flowline 3, while hydraulic oil there will not be and leaks, make the oil pressure of hydraulic oil in oil pocket highly stable, improve machine tool accuracy.The hydraulic oil flowed out in oil pocket groove 10 flows into same contiguous block 5 respectively by oil connection 4 after spiral oil pipe, is then discharged by oil connection, thus reclaims hydraulic oil.
The air drain 11 of annular is provided with in the outside of annular oil cavity groove 10, air drain 11 is in being communicated with closed, air drain 11 is communicated with tracheae 12, gases at high pressure enter in air drain 11 by tracheae 12, due to the good fluidity of gas, therefore gases at high pressure can along the guide rail formed by static pressure oil film and on, Clearance Flow between lower static pressure block, make this static-pressure system interior except having static pressure oil film, yet forms both an air curtain formed by gases at high pressure, by the iron filings that guide rail adheres to, dust and other foreign material blow away, effectively purify guide rail surface, thus the static pressure face protecting guide rail and be combined with guide rail, improve precision and the service life of guide rail, and prevent hydraulic oil from being polluted.
Claims (2)
1. a hydrostatic guide rail system of machine tool, this system is by independently guide rail and static pressure block form, the static pressure block being positioned at top is oil gathering block (1), it is characterized in that: the middle part of described oil gathering block (1) has oil pocket (9), oil pocket (9) is connected with spiral oil inlet pipe (7) by oil connection four (8), the internal diameter of spiral oil inlet pipe (7) is 3-4mm, upper and the periphery being positioned at oil pocket (9) of oil gathering block (1) is provided with the oil pocket groove (10) of annular, oil pocket groove (10) is in being communicated with closed, and be communicated with oil pocket (9), oil pocket groove (10) is provided with symmetrically arranged oil-out, oil-out is communicated with spiral flowline (3) respectively by oil connection one (2), the diameter of spiral flowline (3) is 0.8-1mm, the air drain (11) of annular is provided with in the outside of annular oil cavity groove (10), air drain (11) is in being communicated with closed, air drain has gases at high pressure in (11),
The spiral flowline (3) be communicated with oil-out is connected with contiguous block (5) respectively by oil connection two (4), and contiguous block (5) is connected with device for recovering hydraulic oil by oil connection three (6).
2. hydrostatic guide rail system of machine tool according to claim 1, is characterized in that: described oil pocket groove (10) at least arranges two oil-outs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010566920.1A CN102039526B (en) | 2010-12-01 | 2010-12-01 | Hydrostatic guide rail system of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010566920.1A CN102039526B (en) | 2010-12-01 | 2010-12-01 | Hydrostatic guide rail system of machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102039526A CN102039526A (en) | 2011-05-04 |
| CN102039526B true CN102039526B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010566920.1A Expired - Fee Related CN102039526B (en) | 2010-12-01 | 2010-12-01 | Hydrostatic guide rail system of machine tool |
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| CN (1) | CN102039526B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116160261B (en) * | 2023-04-21 | 2023-07-07 | 江苏领臣精密机械有限公司 | Protection mechanism of hydrostatic guideway |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3355990A (en) * | 1964-08-26 | 1967-12-05 | Henschef Werke A G | Hydrostatic positioning of worktables of machine tools |
| US3476444A (en) * | 1968-04-04 | 1969-11-04 | James D Dunfee | Hydrostatic bearing unit |
| US3640590A (en) * | 1968-08-13 | 1972-02-08 | Koning Maschf P | Means utilizing compressed air for confining a pressurized oil film between relatively movable bearing surfaces |
| FR2563610A1 (en) * | 1984-04-27 | 1985-10-31 | Forest Line Sa | DEVICE FOR LUBRICATING THE SURFACES OF THE RANGE OF MOBILE MOBILE ORGANS |
| CN1090031A (en) * | 1993-01-19 | 1994-07-27 | 益阳地区材料应用研究所 | The pressure stabilizer for carburation of liquid fuel range |
| CN2466412Y (en) * | 2001-02-28 | 2001-12-19 | 张梁 | Pressure-regulated water-saving pipe |
| CN2574014Y (en) * | 2002-10-28 | 2003-09-17 | 广东省电力工业局试验研究所 | Capillary symmetry damping pressure stabilizing device |
| CN2849686Y (en) * | 2005-07-08 | 2006-12-20 | 沈阳仪表一厂 | High-temp high-pressure vibration-proof pressure-meter |
| CN201940809U (en) * | 2010-12-01 | 2011-08-24 | 泰达重工机械（青岛）有限公司 | Hydrostatic guide rail system of machine tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200946603Y (en) * | 2006-06-02 | 2007-09-12 | 上海宝钢冶金建设公司 | Remote control hydraulic system of remote control pedrail type loading machine |
-
2010
- 2010-12-01 CN CN201010566920.1A patent/CN102039526B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3355990A (en) * | 1964-08-26 | 1967-12-05 | Henschef Werke A G | Hydrostatic positioning of worktables of machine tools |
| US3476444A (en) * | 1968-04-04 | 1969-11-04 | James D Dunfee | Hydrostatic bearing unit |
| US3640590A (en) * | 1968-08-13 | 1972-02-08 | Koning Maschf P | Means utilizing compressed air for confining a pressurized oil film between relatively movable bearing surfaces |
| FR2563610A1 (en) * | 1984-04-27 | 1985-10-31 | Forest Line Sa | DEVICE FOR LUBRICATING THE SURFACES OF THE RANGE OF MOBILE MOBILE ORGANS |
| CN1090031A (en) * | 1993-01-19 | 1994-07-27 | 益阳地区材料应用研究所 | The pressure stabilizer for carburation of liquid fuel range |
| CN2466412Y (en) * | 2001-02-28 | 2001-12-19 | 张梁 | Pressure-regulated water-saving pipe |
| CN2574014Y (en) * | 2002-10-28 | 2003-09-17 | 广东省电力工业局试验研究所 | Capillary symmetry damping pressure stabilizing device |
| CN2849686Y (en) * | 2005-07-08 | 2006-12-20 | 沈阳仪表一厂 | High-temp high-pressure vibration-proof pressure-meter |
| CN201940809U (en) * | 2010-12-01 | 2011-08-24 | 泰达重工机械（青岛）有限公司 | Hydrostatic guide rail system of machine tool |
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|---|---|
| CN102039526A (en) | 2011-05-04 |
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Granted publication date: 20160302 Termination date: 20211201 |