CN1256213C - Guide rail - Google Patents
Guide rail Download PDFInfo
- Publication number
- CN1256213C CN1256213C CN 200410015705 CN200410015705A CN1256213C CN 1256213 C CN1256213 C CN 1256213C CN 200410015705 CN200410015705 CN 200410015705 CN 200410015705 A CN200410015705 A CN 200410015705A CN 1256213 C CN1256213 C CN 1256213C
- Authority
- CN
- China
- Prior art keywords
- guide rail
- axle
- slide block
- shafts
- film layer
- Prior art date
- 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.)
- Expired - Fee Related
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- Machine Tool Units (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The present invention belongs to the class of machine manufacture, which particularly relates to a guide rail capable of reducing vibration and enhancing stiffness and precision by using the dynamic and static pressure technology. The guide rail comprises a fixed seat, a slide block and shafts. The present invention is mainly characterized in that an oil film layer or gas film layer is arranged between each shaft and the slide block, and between each shaft and the fixed seat; the shafts of the guide rail are connected with a dynamic driving device; under the ordinary or starting state, static pressures exist among the fixed seat, the slide block and the shafts; when the guide rail works, the shafts of the guide rail are driven by the dynamic driving device to rotate at a high speed, and the oil film layer and the gas film layer generate the dynamic pressures so as to reduce vibration of the shafts of the guide rail and enhance stiffness and precision of the product. The shafts of the present invention can be connected with the same dynamic driving device, and can also be connected with different dynamic driving devices.
Description
Technical field
The invention belongs to field of mechanical manufacture technology, specifically is a kind of guide rail.
Background technology
Existing guide rail generally has two kinds of direct contact type guide rail and hydrostatic slideways, and direct contact type rail friction power is bigger, and it is also big to wear and tear, and precision is not high; Because the precision machine tool guide rail requires friction little with vibration, motion evenly, the kinematic accuracy height, so the normal hydrostatic slideway that adopts has oil lamella between the fixed block of hydrostatic slideway and axle, axle and slide block, when slide block slides on lead rail axis, the hydraulic oil of the oil lamella between fixed block (axle) and slide block can reduce friction and vibrate, thereby the raising precision, but at some special occasions, the rigidity of this hydrostatic slideway, precision can't satisfy the requirement of high-accuracy lathe.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, provide a kind of employing dynamic and static pressure technology to reduce vibration, improve the better guide rail of performance of rigidity and precision.
The present invention realizes with following form:
The present invention is a kind of dynamic and static pressure guide rail, axle is a rotating shaft, lead rail axis connects Power Drive Unit, make lead rail axis produce rotation at a high speed in case of necessity, simultaneously between axle and slide block, axle and holder, oil lamella is arranged, oil lamella produces stable dynamic pressure in the rotary course of high-speed rotating shaft, the vibration of holder, slide block and between centers is reduced, rigidity strengthens, precision improves, thereby improves the guide rail performance.
Can adopt the air film layer between axle of the present invention and slide block, axle and the holder, when axle rotated at a high speed, the air film layer produced stable air-flow, reduced the friction of holder, slide block and between centers.
Axle of the present invention is more than two or two, can connect same Power Drive Unit, also can connect different Power Drive Units.
The present invention is under general state, oil lamella, air film layer between axle and slide block, holder have static pressure, in case of necessity, adopt Power Drive Unit to drive lead rail axis and produce rotation at a high speed, the lead rail axis of rotation makes oil lamella and air film layer between axle and slide block, axle and the holder produce stable dynamic pressure at a high speed, thereby reduce vibration, strengthen rigidity, improve precision; The present invention is effect because the employing dynamic and static pressure combines, and product structure is simple, and is economical and practical.
Description of drawings
Fig. 1 is an embodiment of the present invention structural representation.
Fig. 2 is the another kind of example structure schematic diagram of the present invention.
The specific embodiment
Embodiment 1:
As shown in Figure 1, a kind of guide rail, comprise holder 1, slide block 2, axle 3, it is characterized in that: be oil lamella 4 between axle 3 and slide block 2, axle 3 and the holder 1, under the general state, between axle and slide block, holder is static pressure, axle 3 is connecting Power Drive Unit 5, and Power Drive Unit makes axle 3 produce rotation at a high speed during work, and consequent dynamic pressure can reduce the vibration of axle, and make rigidity strengthen 3～10 times, thereby improve the precision of guide rail.
Embodiment 2:
A kind of guide rail comprises holder, slide block, axle, it is characterized in that: be the air film layer between axle and slide block, axle and holder, axle is connecting Power Drive Unit, and Power Drive Unit makes axle produce rotation at a high speed, and the steady air flow of generation reduces the vibration of lead rail axis, strengthen rigidity, improve precision.
Embodiment 3:
A kind of guide rail comprises holder, slide block, many axles, is oil lamella or air film gas between many axles and slide block, holder, and many axles are connecting same Power Drive Unit, and as shown in Figure 1, many axles rotate simultaneously and produce stable dynamic pressure effect.
Embodiment 4:
A kind of guide rail comprises holder, slide block, many axles, is oil lamella or air film layer between many axles and slide block, holder, and many axles are connecting different Power Drive Units, as shown in Figure 2.
Embodiment 5:
Power Drive Unit of the present invention adopts drive motors.
Claims (6)
1, a kind of guide rail, comprise holder (1), slide block (2), axle (3), it is characterized in that: axle (3) is rotating shaft, and guide rail is the dynamic and static pressure guide rail, between holder (1) and axle (3), slide block (2) and the axle (3) oil lamella (4) is arranged, axle is connecting Power Drive Unit (5).
2, a kind of guide rail, comprise holder (1), slide block (2), axle (3), it is characterized in that: axle (3) is rotating shaft, and guide rail is the dynamic and static pressure guide rail, between holder (1) and axle (3), slide block (2) and the axle (3) the air film layer is arranged, axle is connecting Power Drive Unit (5).
3, according to claim 1 or 2 described guide rails, it is characterized in that: axle is more than two.
4, according to the described guide rail of claim 3, it is characterized in that: many axles are connecting same Power Drive Unit.
5, according to the described guide rail of claim 3, it is characterized in that: many axles are connecting different Power Drive Units.
6, according to claim 1 or 2 described guide rails, it is characterized in that: Power Drive Unit adopts drive motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410015705 CN1256213C (en) | 2004-01-06 | 2004-01-06 | Guide rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410015705 CN1256213C (en) | 2004-01-06 | 2004-01-06 | Guide rail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1555964A CN1555964A (en) | 2004-12-22 |
| CN1256213C true CN1256213C (en) | 2006-05-17 |
Family
ID=34351483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410015705 Expired - Fee Related CN1256213C (en) | 2004-01-06 | 2004-01-06 | Guide rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1256213C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275114A (en) * | 2011-08-29 | 2011-12-14 | 机械工业第三设计研究院 | Novel spherical grinding machine tool and grinding method thereof |
-
2004
- 2004-01-06 CN CN 200410015705 patent/CN1256213C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1555964A (en) | 2004-12-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060517 Termination date: 20180106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |