CN103692348B - Closed hydrostatic slideway with static pressure oil film clearance compensation function - Google Patents
Closed hydrostatic slideway with static pressure oil film clearance compensation function Download PDFInfo
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- CN103692348B CN103692348B CN201310655523.5A CN201310655523A CN103692348B CN 103692348 B CN103692348 B CN 103692348B CN 201310655523 A CN201310655523 A CN 201310655523A CN 103692348 B CN103692348 B CN 103692348B
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- hydrostatic slideway
- pressure oil
- static
- piston
- oil film
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Machine Tool Units (AREA)
Abstract
The present invention relates to a kind of closed hydrostatic slideway with static pressure oil film clearance compensation function, including base, planker, guide-rail plate, planker side is moved and is provided with several piston apparatus on guide rail, piston apparatus and be arranged between the guide-rail plate on base the oil film contact surface formed by a static-pressure oil chamber.The novel guide rail structure of the present invention adds the self-regulation ability in hydrostatic slideway gap, can gap change that preferably compensating static guide rail causes due to thermal deformation, avoid hydrostatic slideway at high speed reciprocatory movement because temperature rise is excessive and stuck, improve the safety of hydrostatic slideway, it is possible to meet the requirement of follow-up grinder grinding carriage feeding high-speed, high precision high dynamic response.
Description
Technical field
The present invention relates to a kind of hydrostatic slideway, a kind of closed hydrostatic slideway with static pressure oil film clearance compensation function.
Background technology
Along with the development of science and technology, people are more and more higher to the requirement in terms of the quality of machinofacture and precision, the most day by day improve machine tool accuracy, the rate request of converted products simultaneously, and high-speed precise machine tool has become an important directions of machine tool industry development.Hydrostatic slideway is the most progressively valued by the people with its excellent performance, and is widely used at machine industry.
Typically hydrostatic slideway is divided into open type static pressure guide rail and the big class of closed hydrostatic slideway two.Open type static pressure guide rail can only bear unidirectional load, and the ability bearing unbalance loading and tilting moment is poor, and range of application is less；Closed hydrostatic slideway has opposed oil pocket, can bear the load of different directions and bear the biggest tilting moment, applying wider in high-speed precise machine tool.It can be said that closed hydrostatic slideway meets the job requirement of high-speed precise machine tool, it it is the ideal components of its Feed servo system unit.
Existing closed hydrostatic slideway is when doing reciprocating motion at a high speed, hydrostatic slideway often produces thermal deformation because temperature rise is excessive, static pressure oil film horizontal clearance is caused drastically to diminish, oil film thickness cannot keep, oil film rigidity is made to reduce and guide rail stuck phenomenon occurs, the regulating power of traditional restrictor feedback control tends not to meet requirement, have impact on the service behaviour of lathe.Then need existing closed static pressure guideway structure is improved, meet the requirement of high-speed, high precision, improve the reciprocating safety of hydrostatic slideway high speed and service life.
Summary of the invention
The technical problem to be solved is to overcome the deficiencies in the prior art, it is provided that a kind of high speed, the high-precision closed hydrostatic slideway with static pressure oil film clearance compensation function.
For solving above-mentioned technical problem, the present invention uses following technical proposals:
A kind of closed hydrostatic slideway with static pressure oil film clearance compensation function, including base, planker, guide-rail plate, it is characterized in: planker side is moved and is provided with several piston apparatus on guide rail, piston apparatus and be arranged between the guide-rail plate on base the oil film contact surface formed by a static-pressure oil chamber.
Piston apparatus is made up of piston oil pocket, piston, sealing ring, damping plug, static-pressure oil chamber, has a piston oil pocket between piston and the dynamic guide rail of planker, and piston is tightly connected by the dynamic guide rail of sealing ring with planker, is provided with damping plug in piston.
Piston apparatus on planker and be arranged between the guide-rail plate on base the static-pressure oil chamber oil film contact surface formed and move the oil film contact surface that the several static-pressure oil chambers arranged on guide rail are formed with planker another side and form oil film pair.
Compared with prior art, the beneficial effects of the present invention is: the present invention installs several piston apparatus on a side rails, add the self-regulation ability in hydrostatic slideway gap, can gap change that preferably compensating static guide rail causes due to thermal deformation, avoid hydrostatic slideway at high speed reciprocatory movement because temperature rise is excessive and stuck, improve safety and the service life of hydrostatic slideway high-speed motion.
The present invention is applicable to the grinder wheel frame feed mechanisms such as high speed servo crankshaft/camshaft.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of the present invention；
Fig. 2 is the enlarged drawing of piston apparatus in Fig. 1.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, the closed hydrostatic slideway with static pressure oil film clearance compensation function of the present invention, including base 1, planker 2, guide-rail plate 3, guide rail clip 4, linear electric motors 5, piston apparatus 6.
Guide-rail plate 3 is arranged on base 1, and guide rail clip 4 is arranged on planker 2.Guide-rail plate 3, guide rail clip 4, planker 2, base 1 form closed hydrostatic slideway.The side of planker 2 is moved to arrange on guide rail and several is formed oil film contact surface by static-pressure oil chamber, and opposite side moves installs several piston apparatus 6 on guide rail, and the static-pressure oil chamber 11 on piston 8 forms oil film pair with the fixing oil pocket of guide rail opposite side.The primary of linear electric motors 5 is connected with planker 2 by connecting plate, and secondary is connected with base 1, makes the clearance control between primary and secondary in claimed range by the thickness of change connecting plate during assembling.
As shown in Figure 2, piston apparatus 6 is made up of piston oil pocket 7, piston 8, sealing ring 9, damping plug 10, static-pressure oil chamber 11, having a piston oil pocket 7 between piston 8 and the dynamic guide rail of planker 2, piston 8 is tightly connected by the dynamic guide rail of sealing ring 9 with planker 2, is provided with damping plug 10 in piston 8.Thermal deformation when piston 8 can move back and forth at a high speed according to guide rail carrys out the variable quantity of compensating static oil clearance.Hydraulic oil is entered by piston oil pocket 7, and by the damping hole supply static-pressure oil chamber 11 in the middle of damping plug 10, damping hole has the function of isolation hydraulic shock, thus keeps controlling thickness of guide rail oil membrane within normal range.
The present invention installs several piston apparatus on a side rails, add the self-regulation ability in hydrostatic slideway gap, can gap change that preferably compensating static guide rail causes due to thermal deformation, avoid hydrostatic slideway at high speed reciprocatory movement because temperature rise is excessive and stuck, improve the safety of hydrostatic slideway, it is possible to meet the requirement of follow-up grinder grinding carriage feeding high-speed, high precision high dynamic response.
Claims (2)
1. the closed hydrostatic slideway with static pressure oil film clearance compensation function, including base (1), planker (2), guide-rail plate (3), it is characterized in that: described planker (2) side is moved and is provided with several piston apparatus (6) on guide rail, the oil film contact surface formed by a static-pressure oil chamber (11) between piston apparatus (6) and the guide-rail plate (3) being arranged on base (1)；Described piston apparatus (6) is made up of piston oil pocket (7), piston (8), sealing ring (9), damping plug (10), static-pressure oil chamber (11), a piston oil pocket (7) is had between the dynamic guide rail of piston (8) and planker (2), piston (8) is tightly connected by the dynamic guide rail of sealing ring (9) with planker (2), is provided with damping plug (10) in piston (8).
A kind of closed hydrostatic slideway with static pressure oil film clearance compensation function the most according to claim 1, it is characterised in that: the oil film contact surface formation oil film pair that the several static-pressure oil chambers arranged on guide rail are formed is moved in the static-pressure oil chamber oil film contact surface formed between piston apparatus (6) and the guide-rail plate (3) being arranged on base (1) on described planker (2) and planker (2) another side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310655523.5A CN103692348B (en) | 2013-12-09 | 2013-12-09 | Closed hydrostatic slideway with static pressure oil film clearance compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310655523.5A CN103692348B (en) | 2013-12-09 | 2013-12-09 | Closed hydrostatic slideway with static pressure oil film clearance compensation function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103692348A CN103692348A (en) | 2014-04-02 |
| CN103692348B true CN103692348B (en) | 2016-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310655523.5A Active CN103692348B (en) | 2013-12-09 | 2013-12-09 | Closed hydrostatic slideway with static pressure oil film clearance compensation function |
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| CN (1) | CN103692348B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234544A (en) * | 2016-03-28 | 2017-10-10 | 沈阳海默数控机床有限公司 | The feed arrangement of lathe |
| TWI681837B (en) | 2018-11-22 | 2020-01-11 | 財團法人工業技術研究院 | Machine tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979218A (en) * | 2010-12-08 | 2011-02-23 | 上海机床厂有限公司 | Double-rectangular closed static pressure guide rails with high precision and high rigidity |
| CN102777496A (en) * | 2012-08-09 | 2012-11-14 | 华锐风电科技(集团)股份有限公司 | Thickness automatically-compensating device for multi-oil-chamber static pressure oil film, and system thereof |
| CN202540498U (en) * | 2012-03-13 | 2012-11-21 | 无锡跃联机械有限公司 | Spiral damping tube in marble gang saw hydrostatic guideway pair |
| CN202922389U (en) * | 2012-11-01 | 2013-05-08 | 上海机床厂有限公司 | Connection plate simplified hydrostatic guideway for mounting and debugging linear motor |
| CN202922403U (en) * | 2012-11-01 | 2013-05-08 | 上海机床厂有限公司 | Hydrostatic guideway with horizontal clearance feedback device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4159278B2 (en) * | 2001-11-19 | 2008-10-01 | 株式会社ナガセインテグレックス | Grinder |
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2013
- 2013-12-09 CN CN201310655523.5A patent/CN103692348B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979218A (en) * | 2010-12-08 | 2011-02-23 | 上海机床厂有限公司 | Double-rectangular closed static pressure guide rails with high precision and high rigidity |
| CN202540498U (en) * | 2012-03-13 | 2012-11-21 | 无锡跃联机械有限公司 | Spiral damping tube in marble gang saw hydrostatic guideway pair |
| CN102777496A (en) * | 2012-08-09 | 2012-11-14 | 华锐风电科技(集团)股份有限公司 | Thickness automatically-compensating device for multi-oil-chamber static pressure oil film, and system thereof |
| CN202922389U (en) * | 2012-11-01 | 2013-05-08 | 上海机床厂有限公司 | Connection plate simplified hydrostatic guideway for mounting and debugging linear motor |
| CN202922403U (en) * | 2012-11-01 | 2013-05-08 | 上海机床厂有限公司 | Hydrostatic guideway with horizontal clearance feedback device |
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|---|---|
| CN103692348A (en) | 2014-04-02 |
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