CN103692348A - Closed static pressure guide rail with static pressure oil film clearance compensation function - Google Patents
Closed static pressure guide rail with static pressure oil film clearance compensation function Download PDFInfo
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- CN103692348A CN103692348A CN201310655523.5A CN201310655523A CN103692348A CN 103692348 A CN103692348 A CN 103692348A CN 201310655523 A CN201310655523 A CN 201310655523A CN 103692348 A CN103692348 A CN 103692348A
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- guide rail
- static pressure
- piston
- pressure oil
- static
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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)
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Abstract
The invention relates to a closed static pressure guide rail with a static pressure oil film clearance compensation function. The closed static pressure guide rail comprises a base, a carriage and a guide rail plate, wherein a plurality of piston devices are arranged on a movable guide rail on one side of the carriage; an oil film contact surface formed by a static pressure oil cavity is formed between the piston devices and the guide rail plate on the base. Due to the novel guide rail structure of the closed static pressure guide rail, the capacity for automatically adjusting a clearance of the static pressure guide rail is realized, and the clearance change, which is caused by thermal deformation, of the static pressure guide rail can be better compensated; the phenomenon that the static pressure guide rail is locked due to over-high temperature rise in a high-speed reciprocating motion is avoided; the safety of the static pressure guide rail is improved; a requirement on high-speed, high-precision and high-dynamic response to feeding of a sand wheel frame of a following grinding machine can be met.
Description
Technical field
The present invention relates to a kind of hydrostatic slideway, especially a kind of closed hydrostatic slideway with static pressure oil clearance compensate function.
Background technology
Along with scientific and technological development, people are more and more higher to the requirement of the quality of machinofacture and precision aspect, the machine tool accuracy of converted products, rate request also improved day by day simultaneously, and high-speed precise machine tool has become an important directions of machine tool industry development.Hydrostatic slideway is just progressively valued by the people in recent years with its good performance, and is widely used at machine industry.
Generally hydrostatic slideway is divided into open type static pressure guide rail and the large class of closed hydrostatic slideway two.Open type static pressure guide rail can only bear unidirectional load, and the ability of 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 very large tilting moment, and in high-speed precise machine tool, application is wider.Can say, closed hydrostatic slideway meets the job requirement of high-speed precise machine tool, is the desirable parts of its feeding driver element.
Existing closed hydrostatic slideway is being done while moving back and forth at a high speed, hydrostatic slideway often produces thermal deformation because temperature rise is excessive, cause static pressure oil film horizontal clearance sharply to diminish, oil film thickness cannot keep, oil film rigidity is reduced and guide rail stuck phenomenon occurs, the regulating power of conventional throttle device FEEDBACK CONTROL often can not meet the demands, and has affected the service behaviour of lathe.So need to improve existing closed static pressure guideway structure, meet the requirement of high-speed, high precision, improve the reciprocating security of hydrostatic slideway high speed and service life.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, and a kind of high speed, the high-precision closed hydrostatic slideway with static pressure oil clearance compensate function are provided.
For solving the problems of the technologies described above, the present invention adopts following technical proposals:
A kind of closed hydrostatic slideway with static pressure oil clearance compensate function, comprise base, planker, guide-rail plate, be characterized in: on the moving guide rail of planker one side, several piston apparatus are installed, piston apparatus and be arranged on the oil film contact-making surface being formed by a static-pressure oil chamber between the guide-rail plate on base.
Piston apparatus consists of piston oil pocket, piston, sealing ring, damping plug, static-pressure oil chamber, has a piston oil pocket between the moving guide rail of piston and planker, and piston is tightly connected by the moving guide rail of sealing ring and planker, is provided with damping plug in piston.
The oil film contact-making surface that the several static-pressure oil chambers that arrange on the moving guide rail in the static-pressure oil chamber oil film contact-making surface that piston apparatus on planker and being arranged on forms between the guide-rail plate on base and planker another side form forms oil film pair.
Compared with prior art, beneficial effect of the present invention is: the present invention installs several piston apparatus on a side rails, increased the self-regulation ability in hydrostatic slideway gap, better compensating static guide rail is because the gap that thermal deformation causes changes, avoid hydrostatic slideway excessive and stuck because of temperature rise in high speed reciprocating motion process, security and the service life of having improved hydrostatic slideway high-speed motion.
The present invention is applicable to the grinder wheel frame feed mechanisms such as high speed servo bent axle/camshaft.
Accompanying drawing explanation
Fig. 1 is structure cutaway view of the present invention;
Fig. 2 is the enlarged drawing of piston apparatus in Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, the closed hydrostatic slideway with static pressure oil clearance compensate function of the present invention, comprises 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.On the moving guide rail of one side of planker 2, arrange and severally by static-pressure oil chamber, forms oil film contact-making surface, on the moving guide rail of opposite side, several piston apparatus 6 are installed, the fixedly oil pocket formation oil film pair of the static-pressure oil chamber 11 on piston 8 and guide rail opposite side.The elementary of linear electric motors 5 is connected with planker 2 by connecting plate, is secondaryly connected with base 1, during assembling, by changing the thickness of connecting plate, makes clearance control between elementary and secondary in claimed range.
As shown in Figure 2, piston apparatus 6 consists of piston oil pocket 7, piston 8, sealing ring 9, damping plug 10, static-pressure oil chamber 11, between piston 8 and the moving guide rail of planker 2, have a piston oil pocket 7, piston 8 is tightly connected by sealing ring 9 and the moving guide rail of 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, by the damping hole in the middle of damping plug 10, supplies with static-pressure oil chamber 11, and damping hole has the function of isolated hydraulic shock, thereby keeps controlling thickness of guide rail oil membrane in normal range (NR).
The present invention installs several piston apparatus on a side rails, increased the self-regulation ability in hydrostatic slideway gap, better compensating static guide rail is because the gap that thermal deformation causes changes, avoid hydrostatic slideway high speed reciprocating motion process because of temperature rise excessive and stuck, improve the security of hydrostatic slideway, can meet the requirement of follow-up grinder grinding carriage feeding high-speed, high precision high dynamic response.
Claims (3)
1. the closed hydrostatic slideway with static pressure oil clearance compensate function, comprise base (1), planker (2), guide-rail plate (3), it is characterized in that: on the moving guide rail of described planker (2) one sides, several piston apparatus (6) are installed, piston apparatus (6) and be arranged on the oil film contact-making surface being formed by a static-pressure oil chamber (11) between the guide-rail plate (3) on base (1).
2. a kind of closed hydrostatic slideway with static pressure oil clearance compensate function according to claim 1, it is characterized in that: described piston apparatus (6) consists of piston oil pocket (7), piston (8), sealing ring (9), damping plug (10), static-pressure oil chamber (11), between the moving guide rail of piston (8) and planker (2), there is a piston oil pocket (7), piston (8) is tightly connected by sealing ring (9) and the moving guide rail of planker (2), is provided with damping plug (10) in piston (8).
3. a kind of closed hydrostatic slideway with static pressure oil clearance compensate function according to claim 1, is characterized in that: the oil film contact-making surface formation oil film pair that the several static-pressure oil chambers that arrange on the static-pressure oil chamber oil film contact-making surface that the piston apparatus (6) on described planker (2) and being arranged on forms between the guide-rail plate (3) on base (1) and the moving guide rail in planker (2) another side form.
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 true CN103692348A (en) | 2014-04-02 |
| CN103692348B CN103692348B (en) | 2016-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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Cited By (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 |
| US10456881B1 (en) | 2018-11-22 | 2019-10-29 | Industrial Technology Research Institute | Machine tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003145385A (en) * | 2001-11-19 | 2003-05-20 | Nagase Integrex Co Ltd | Machine tool and grinding machine |
| 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 |
| CN202922403U (en) * | 2012-11-01 | 2013-05-08 | 上海机床厂有限公司 | Hydrostatic guideway with horizontal clearance feedback device |
| 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 |
-
2013
- 2013-12-09 CN CN201310655523.5A patent/CN103692348B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003145385A (en) * | 2001-11-19 | 2003-05-20 | Nagase Integrex Co Ltd | Machine tool and grinding machine |
| 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 |
| CN202922403U (en) * | 2012-11-01 | 2013-05-08 | 上海机床厂有限公司 | Hydrostatic guideway with horizontal clearance feedback device |
| 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 |
Cited By (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 |
| US10456881B1 (en) | 2018-11-22 | 2019-10-29 | Industrial Technology Research Institute | Machine tool |
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|---|---|
| CN103692348B (en) | 2016-11-02 |
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