CN105773178A - Vertical static-pressure guide rail and oil return device - Google Patents
Vertical static-pressure guide rail and oil return device Download PDFInfo
- Publication number
- CN105773178A CN105773178A CN201610249730.4A CN201610249730A CN105773178A CN 105773178 A CN105773178 A CN 105773178A CN 201610249730 A CN201610249730 A CN 201610249730A CN 105773178 A CN105773178 A CN 105773178A
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- CN
- China
- Prior art keywords
- oil
- slide unit
- rail
- guide rails
- hydrostatic slideway
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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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
- B23Q1/017—Arrangements of ways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/38—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using fluid bearings or fluid cushion supports
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Machine Tool Units (AREA)
Abstract
The invention discloses a vertical static-pressure guide rail and an oil return device. The device comprises a Z-axle slide table, an oil receiving disc, front guide rails, side guide rails, back guide rails, a Y-axle base, oil seals, a slide table and a support block, wherein the support block is mounted at one end of the Z-axle slide table; the Y-axle base is mounted on the support block; the oil receiving disc is mounted at the other end of the Z-axle slide table for supporting oil flowing back from the guide rails to flow into an oil tank; two front guide rails are mounted on two sides of the oil receiving disc; two back guide rails are also mounted on the oil receiving disc, and are contacted with the end surface of the Y-axle base; two side guide rails are mounted between the front guide rails and the back guide rails; the slide table is mounted between the front guide rails and the back guide rails, and is positioned between the two side guide rails to form a static-pressure guide rail with a closed structure; two oil seals are mounted at the upper end of the slide table to realize oil distribution to each oil cavity of the slide table. The vertical static-pressure guide rail and oil return device is low in frictional force, high in rigidity, high in guiding precision and high in bearing capacity.
Description
Technical field
The present invention is a kind of vertical hydrostatic slideway and oil return apparatus, belongs to the innovative technology of vertical hydrostatic slideway and oil return apparatus.
Background technology
Ultra-precision machine tool is the primary basic condition realizing Ultra-precision Turning, and track segment is the critical component in ultra-precision machine tool, and its performance has been largely fixed the precision of ultra-precision machine tool.Current domestic vertical Y-axis guide rail mainly has rail plate and line slideway two kinds as guiding mechanism, and frictional force is big, and guiding accuracy is low, limits the development of Ultra-precision CNC Machine.
Hydrostatic slideway is divided into open type and enclosed two class, is mainly used in ultraprecise equipment technology.Accurate and nanotechnolgy development directly affects the development of national defense industry and civilian industry, and each power of the world has all carried out big quantity research and achieved a large amount of achievement in Ultra-precision Turning field.
Summary of the invention
It is an object of the invention to consider that the problems referred to above provide a kind of frictional force rigidity little, high, high guiding accuracy, vertical hydrostatic slideway that bearing capacity is big and oil return apparatus.
The technical scheme is that the vertical hydrostatic slideway of the present invention and oil return apparatus, including Z axis slide unit, oil drain pan, fromer rail, side rails, rear rail, Y-axis pedestal, oil sealing, slide unit, prop up bracer, wherein prop up bracer and be arranged on one end of Z axis slide unit, Y-axis pedestal is arranged on a bracer, oil drain pan is arranged on the other end of Z axis slide unit, hold the oil overflow back by guide rail and flow back to fuel tank, two pieces of fromer rails are arranged on the both sides of oil drain pan, two pieces of rear rails are also mounted on oil drain pan, and with the end contact of Y-axis pedestal, two pieces of side rails are installed between fromer rail and rear rail, slide unit is also installed between fromer rail and rear rail, and between two pieces of side rails, form enclosed construction hydrostatic slideway, two oil sealings are arranged on the upper end of slide unit, realize joining oil to each oil pocket of slide unit.
The vertical static pressure rail sliding table of the present invention adopts overall square block structure, compact conformation, it is simple to the match grinding in mating surface gap, it is easy to ensure required precision.It addition, the vertical hydrostatic slideway of the present invention solves Leakage, oil drain pan holds the hydraulic oil overflowed from hydrostatic slideway mating surface gap, and fuel tank is flowed back in circulation.Additionally, the vertical hydrostatic slideway of the present invention is respectively arranged with oil unloading trough at upper and lower, side slid platform, it is ensured that hydraulic oil is drained after flowing out from guide clearance in time.When discharge capacity is excessive, it is to avoid appearance is stifled oily and upper and lower, side rails contacts with each other face oil leakage phenomenon.Due to the structure adopted, the vertical hydrostatic slideway of the present invention have employed hydrodynamic lubrication technology, has frictional force rigidity little, high, high guiding accuracy, and bearing capacity is big.Can be applicable to ultra-precision machine tool Y-axis, improve ultra-precision machine tool Y-axis geometric accuracy, positive role is played in the development promoting ultraprecise equipment technology.The present invention is that a kind of design is ingenious, function admirable, convenient and practical vertical hydrostatic slideway and oil return apparatus, it is possible to be applied to the Y-axis of Ultra-precision CNC Machine.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the present invention；
Fig. 2 is the assembling front view of the fromer rail in Fig. 1, side rails, rear rail, oil sealing, slide unit；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is the A-A sectional view in Fig. 2；
Fig. 5 is the partial enlarged drawing at A place in Fig. 4；
Fig. 6 is the partial sectional view after oil sealing and the slide unit assembling of the present invention；
Fig. 7 is the structural representation of reducer in Fig. 6.
Detailed description of the invention
Embodiment:
nullThe structural representation of the present invention such as Fig. 1、2、3、Shown in 4，The vertical hydrostatic slideway of the present invention and oil return apparatus，Including Z axis slide unit 1、Oil drain pan 2、Fromer rail 3、Side rails 4、Rear rail 5、Y-axis pedestal 6、Oil sealing 7、Slide unit 8、Prop up bracer 9，Wherein prop up bracer 9 and be arranged on one end of Z axis slide unit 1，Y-axis pedestal 6 is arranged on a bracer 9，Oil drain pan 2 is arranged on the other end of Z axis slide unit 1，Hold the oil overflow back by guide rail and flow back to fuel tank，Two pieces of fromer rails 3 are arranged on the both sides of oil drain pan 2，Two pieces of rear rails 5 are also mounted on oil drain pan 2、And with the end contact of Y-axis pedestal 6，Two pieces of side rails 4 are installed between fromer rail 3 and rear rail 5，Slide unit 8 is also installed between fromer rail 3 and rear rail 5、And between two pieces of side rails 4，Form enclosed construction hydrostatic slideway，Two oil sealings 4 are arranged on the upper end of slide unit 8，Realize joining functional oil to each oil pocket of slide unit.
In the present embodiment, it is provided with oil unloading trough 14 and oil unloading trough 16 between above-mentioned side rails 4 and slide unit 8, is additionally provided with side oil pocket 15 between side rails 4 and slide unit 8, as shown in Figure 5.It addition, be respectively provided with oil unloading trough 12 and oil unloading trough 18 between rear rail 5 and slide unit 8, between fromer rail 3 and slide unit 8, between fromer rail 3 and slide unit 8, it is additionally provided with front oil pocket 17, is additionally provided with rear oil pocket 13 between rear rail 5 and slide unit 8, as shown in Figure 5.So each oil pocket periphery is provided with rational oil unloading trough, it is ensured that hydraulic oil is drained after flowing out from guide clearance in time.Avoid blocking and make hydraulic oil from mating surface seepage between parts.
In the present embodiment, between above-mentioned oil sealing 7 and slide unit 8, it is provided with reducer 11.
In the present embodiment, above-mentioned reducer 11 is through type capillary restrictor.By adjusting the length of reducer 11, the pressure of oil pocket just can be regulated.The processing of reducer 11 end has taper thread, plays sealing function.Capillary tube is arranged on inside oil sealing 7, and fluid is entered by the right-hand member oil circuit of oil sealing, is directly communicated to the oil pocket of slide unit after reducer 11.
Slide unit 8 upper end of the present invention is connected with oil sealing by side edge, and hydraulic oil enters the oil pocket respectively enteing slide unit 8 side after oil sealing is divided into multichannel by capillary tube.Compact conformation is reasonable, and function is reliable.
The vertical hydrostatic slideway of the present invention have employed closed type structure, it is possible to effectively carries forward and reverse load, unbalance loading and disturbing moment；Bearing capacity can be improved；Adopt ultraprecise hydraulic SERVO CONTROL oil supply system, the hydraulic oil of output constant-pressure stable, ensure that the rigidity of the steady of pressure and oil film fully.Adopt capillary restrictor 11, each oil pocket pressure can be automatically adjusted to adapt to the change of external applied load.Hydraulic oil enters from the oil-in of oil sealing, respectively enters forward and backward, the side oil pocket of slide unit, made slide unit float after entering capillary tube, and upper and lower, side slid platform is respectively arranged with oil unloading trough, it is ensured that hydraulic oil is drained after flowing out from guide clearance in time.
On material of the present invention, adopt cast iron；Rear rail is fixed on pedestal, and side rails and fromer rail are fixed on rear rail；Rear rail and side rails, side rails and fromer rail contact surface carry out match grinding with the slide unit refined after using ultraprecise friction fine grinding, have high linearity, it is ensured that the gap of the monolateral 1-2 micron of mating surface between mating surface.Slide unit is that overall square block, left and right end face and two sides process annular oil cavity, compact conformation, convenient and left and right sides guide rail, front and back guide rail match grinding, easily ensures required precision.
The vertical hydrostatic slideway of the present invention and oil return apparatus are provided with oil pocket in slide unit, certain pressure hydraulic oil is passed into slide unit oil pocket, then forming oil film between slide unit and guide rail makes slide unit float, ensure to be in hydrodynamic lubrication state between guide pass, there is frictional force little, high rigidity, high kinematic accuracy, damping absorbing is good, the feature of life-span length, can be applicable to Ultra-precision CNC Machine Y-axis, improve the geometric accuracy of the Y-axis of Ultra-precision CNC Machine, devise oil drain pan device simultaneously, the hydraulic oil of hydrostatic slideway mating surface gap overflow is collected smoothly and circulating reflux is to fuel tank, solve Leakage.
Claims (4)
- null1. a vertical hydrostatic slideway and oil return apparatus，It is characterized in that including Z axis slide unit (1)、Oil drain pan (2)、Fromer rail (3)、Side rails (4)、Rear rail (5)、Y-axis pedestal (6)、Oil sealing (7)、Slide unit (8)、Prop up bracer (9)，Wherein prop up bracer (9) and be arranged on one end of Z axis slide unit (1)，Y-axis pedestal (6) is arranged on a bracer (9)，Oil drain pan (2) is arranged on the other end of Z axis slide unit (1)，Hold the oil overflow back by guide rail and flow back to fuel tank，Two pieces of fromer rails (3) are arranged on the both sides of oil drain pan (2)，Two pieces of rear rails (5) are also mounted on oil drain pan (2)、And with the end contact of Y-axis pedestal (6)，Two pieces of side rails (4) are installed between fromer rail (3) and rear rail (5)，Slide unit (8) is also installed between fromer rail (3) and rear rail (5)、And be positioned between two pieces of side rails (4)，Form enclosed construction hydrostatic slideway，Two oil sealings (4) are arranged on the upper end of slide unit (8)，Realize joining oil to each oil pocket of slide unit.
- 2. vertical hydrostatic slideway according to claim 1 and oil return apparatus, it is characterized in that being provided with oil unloading trough between above-mentioned side rails (4) and slide unit (8), it is additionally provided with side oil pocket between side rails (4) and slide unit (8), between rear rail (5) and slide unit (8), between fromer rail (3) and slide unit (8), it is respectively provided with oil unloading trough, it is additionally provided with front oil pocket between fromer rail (3) and sliding slide unit (8), between rear rail (5) and slide unit (8), is additionally provided with rear oil pocket.
- 3. vertical hydrostatic slideway according to claim 1 and 2 and oil return apparatus, it is characterised in that be provided with reducer (11) between above-mentioned oil sealing (7) and slide unit (8).
- 4. vertical hydrostatic slideway according to claim 3 and oil return apparatus, it is characterised in that above-mentioned reducer (11) is capillary restrictor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610249730.4A CN105773178A (en) | 2016-04-21 | 2016-04-21 | Vertical static-pressure guide rail and oil return device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610249730.4A CN105773178A (en) | 2016-04-21 | 2016-04-21 | Vertical static-pressure guide rail and oil return device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105773178A true CN105773178A (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610249730.4A Pending CN105773178A (en) | 2016-04-21 | 2016-04-21 | Vertical static-pressure guide rail and oil return device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105773178A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108817993A (en) * | 2018-08-09 | 2018-11-16 | 中国工程物理研究院机械制造工艺研究所 | A kind of vertical liquid hydrostatic slideway servo feed system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1172574A2 (en) * | 2000-07-12 | 2002-01-16 | Wolfgang Dipl.-Ing. Rixen | Guiding frame |
| CN101829904A (en) * | 2010-01-26 | 2010-09-15 | 西安交通大学 | Closed hydrostatic slideway |
| CN103406765A (en) * | 2012-12-18 | 2013-11-27 | 芜湖陀曼精机科技有限公司 | Guide rail and sliding block mechanism of sliding block type hydrostatic guide rail |
| CN204312552U (en) * | 2014-12-02 | 2015-05-06 | 武汉重型机床集团有限公司 | Half bag static pressure ram coating packing oil sealing sealing configuration |
| CN205673864U (en) * | 2016-04-21 | 2016-11-09 | 广东工业大学 | Vertical static-pressure guide device |
-
2016
- 2016-04-21 CN CN201610249730.4A patent/CN105773178A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1172574A2 (en) * | 2000-07-12 | 2002-01-16 | Wolfgang Dipl.-Ing. Rixen | Guiding frame |
| CN101829904A (en) * | 2010-01-26 | 2010-09-15 | 西安交通大学 | Closed hydrostatic slideway |
| CN103406765A (en) * | 2012-12-18 | 2013-11-27 | 芜湖陀曼精机科技有限公司 | Guide rail and sliding block mechanism of sliding block type hydrostatic guide rail |
| CN204312552U (en) * | 2014-12-02 | 2015-05-06 | 武汉重型机床集团有限公司 | Half bag static pressure ram coating packing oil sealing sealing configuration |
| CN205673864U (en) * | 2016-04-21 | 2016-11-09 | 广东工业大学 | Vertical static-pressure guide device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108817993A (en) * | 2018-08-09 | 2018-11-16 | 中国工程物理研究院机械制造工艺研究所 | A kind of vertical liquid hydrostatic slideway servo feed system |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |