CN101235849B - Air bearing and its machining process - Google Patents
Air bearing and its machining process Download PDFInfo
- Publication number
- CN101235849B CN101235849B CN2007100173227A CN200710017322A CN101235849B CN 101235849 B CN101235849 B CN 101235849B CN 2007100173227 A CN2007100173227 A CN 2007100173227A CN 200710017322 A CN200710017322 A CN 200710017322A CN 101235849 B CN101235849 B CN 101235849B
- Authority
- CN
- China
- Prior art keywords
- air cavity
- working surface
- end seat
- concave spherical
- air
- 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.)
- Active
Links
Images
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention relates to the technical field of mechanical transmission and guidance, in particular to an air bearing and a processing technology. The invention overcomes the problems existing in the prior art that an orifice is easy to block and has high demands for compressed air, the motive force is not steady, and the treatment process is complex. The technical solution is that the air bearing comprises a slide body, wherein an air cavity is arranged in the slide body, the air cavity is communicated with an air inlet of the slide body, and the orifice which is communicated with the air cavity is arranged on a working surface of the slide body. The air bearing is characterized in that the working surface is a concave spherical, and the outer edge of the concave spherical is a ring plane. The processing technology orderly comprises the following steps: V1ing, aeration: the working surface slightly plumps up under aeration status; V2ing, grinding: the plumped surface is flatted through a plane grinding process; V3ing, production: air supply is closed, the outer wall of the working surface is recovered to an original state, and a grinding surface sinks to form a concave spherical.
Description
Technical field:
The present invention relates to mechanical transmission and guiding field, be specifically related to a kind of pneumatic bearing and processing technology thereof.
Background technique:
Pneumatic bearing (claiming air supporting again) is widely used in mechanical transmission and guiding technique field.Pneumatic bearing includes a slide block body; In the slide block body, be provided with air cavity, this air cavity is communicated with suction port on the slide block body, and a very high working surface of degree of finish through processing is arranged on the slide block body; Mostly working surface is plane structure; On working surface, be provided with throttle orifice, the throttle orifice diameter is less, and air is through the ejection of throttle orifice high pressure.Air-bearing is in start-up course, and when the air pressure in the balancing slit reached certain value, the slide block body floated, and therefore has advantages such as friction factor is little, kinematic accuracy is high, wearing and tearing are little.But existing technology also exists deficiency, 1, that the sector generally believes that throttle orifice Da Yi produces gas loss is big, and rigidity is poor; Therefore throttle orifice is all very little in the existing structure; Be approximately about 0.1～0.3mm, therefore be prone to stop up, so just have relatively high expectations compressed-air actuated; 2, its working surface is the plane, and when contacting with slideway, fitting each other in two very high planes of degree of finish, is prone to be in the vacuum engagement state, is prone to during work produce the phenomenon of can not floating because of the starting force instability; 3, in order to solve the little problem of starting force, also have the balancing slit structure is set around the throttle orifice, but the complex treatment process of balancing slit increases cost, and is prone to make air supporting to vibrate, effect is undesirable.
Summary of the invention:
The present invention provides a kind of pneumatic bearing and processing technology thereof, be prone to stop up to overcome throttle orifice that existing technology exists, to pressurized air have relatively high expectations, the problem of starting force instability and complex treatment process.
For achieving the above object; The technological scheme that the present invention adopts is: a kind of pneumatic bearing, comprise the slide block body, and be provided with air cavity in the slide block body; This air cavity is communicated with suction port on the slide block body; The working surface of slide block body is provided with the throttle orifice that is communicated with air cavity, it is characterized in that: said working surface is a concave spherical surface, and the outer edge of concave spherical surface is a ring plain.
Air cavity top in the above-mentioned end seat is the plane, and the wall thickness of its ring plain to the working surface is about 2～4mm.
Above-mentioned slide block body comprises pedestal and is connected the end seat two-part on this pedestal, and air cavity is arranged between the two, and working surface is arranged on the end seat.
Said base is the round boss shape, and air cavity is arranged at end seat one side, and the end seat cooperates with pedestal is nested.
The longitudinal section of above-mentioned air cavity is stepped, and end seat one side diameter is big.
A kind of processing technology of pneumatic bearing comprises the steps successively,
1. inflation: under aeration status, the little drum of working surface;
2. grind: use plane lapping technology will heave face and grind flat;
3. finished product: close source of the gas, the outer wall of working surface restores to the original state, and abradant surface sink and forms concave spherical surface.
The 1. middle gas pressure of above-mentioned steps is about 0.3～0.5MPa.
Compared with prior art, advantage of the present invention is:
1, throttle orifice can be accomplished and stop the pore blocking phenomenon basically about 0.6～1mm, and pressurized air is required to reduce;
2, owing to have only concave spherical surface ring plain on every side to contact with slideway generation small size on the working surface, pressurized air very easily is full of recessed core air cavity simultaneously, so starting force is big and stable, has guaranteed the stability of work;
3, the concave spherical surface abrasive process of being developed, technological method is simple, is prone to grasp.
Description of drawings:
Fig. 1 is embodiment 1 a structural representation;
Fig. 2 is embodiment 2 a structural representation;
Fig. 3 is that the A of Fig. 1 and Fig. 2 is to view;
Fig. 4 is a process flow diagram.
Description of reference numerals is following:
1-ring plain, 2-concave spherical surface, 3-pedestal, 4-are held seat, 5-air cavity, 6-suction port, 7-throttle orifice.
Embodiment
To combine accompanying drawing and embodiment that the utility model is done detailed explanation below.
Embodiment 1, referring to Fig. 1 and Fig. 3.A kind of pneumatic bearing comprises the slide block body, and said slide block body comprises pedestal 3 and be connected end seat 4 two-part on this pedestal 3 that air cavity 5 is arranged between pedestal 3 and the end seat 4, is communicated with suction port 6.Working surface on the said end seat 4 is a concave spherical surface 2, and the outer edge of concave spherical surface 2 is a ring plain 1, and the center portion of concave spherical surface 2 is provided with the throttle orifice 7 that is communicated with air cavity 5.Said air cavity 5 tops are the plane, and the wall thickness of its ring plain 1 to the working surface is about 4mm.
Referring to Fig. 4, a kind of processing technology of air bearing slider comprises the steps: successively
1. inflation: under ventilation (gas pressure is about 0.4MPa) state, the little drum of working surface;
2. grind: use plane lapping technology will heave face and grind flat;
3. finished product: close source of the gas, the outer wall of working surface restores to the original state, and abradant surface sink and forms concave spherical surface 2.
Claims (5)
1. pneumatic bearing; Comprise the slide block body; Be provided with air cavity (5) in the slide block body, this air cavity (5) is communicated with suction port (6) on the slide block body, and the working surface of slide block body is provided with the throttle orifice (7) that is communicated with air cavity (5); It is characterized in that: described slide block body also comprises pedestal (3) and is connected the end seat (4) on this pedestal (3); Said air cavity (5) is arranged between pedestal (3) and the end seat (4), and air cavity (5) top in the said end seat (4) is the plane, and the wall thickness of its ring plain (1) to the working surface is 2～4mm; Said working surface is arranged on the end seat (4), and working surface is concave spherical surface (2), and the outer edge of concave spherical surface (2) is ring plain (1).
2. a kind of pneumatic bearing as claimed in claim 1 is characterized in that: said pedestal (3) is the round boss shape, and air cavity (5) is arranged at end seat (4) one sides, end seat (4) and nested cooperation of pedestal (3).
3. a kind of pneumatic bearing as claimed in claim 2 is characterized in that: the longitudinal section of said air cavity (5) is stepped, and the diameter of the said air cavity (5) of end seat (4) one sides is big.
4. the processing technology of a kind of pneumatic bearing as claimed in claim 1 is characterized in that: comprises the steps successively,
1. inflation: under aeration status, the little drum of working surface;
2. grind: use plane lapping technology will heave face and grind flat;
3. finished product: close source of the gas, the outer wall of working surface restores to the original state, and abradant surface sink and forms concave spherical surface (2).
5. the processing technology of a kind of pneumatic bearing as claimed in claim 4 is characterized in that: said step 1. in gas pressure be 0.3～0.5MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100173227A CN101235849B (en) | 2007-01-30 | 2007-01-30 | Air bearing and its machining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100173227A CN101235849B (en) | 2007-01-30 | 2007-01-30 | Air bearing and its machining process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101235849A CN101235849A (en) | 2008-08-06 |
| CN101235849B true CN101235849B (en) | 2012-07-18 |
Family
ID=39919688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100173227A Active CN101235849B (en) | 2007-01-30 | 2007-01-30 | Air bearing and its machining process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101235849B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2834615C (en) * | 2013-08-28 | 2020-04-28 | Gedex Inc. | Single axis rotational gas bearing with feed-through |
| CN106286595A (en) * | 2015-05-26 | 2017-01-04 | 大银微***股份有限公司 | Air bearing improvement structure |
| CN106271935B (en) * | 2015-06-26 | 2019-08-13 | 北京航天计量测试技术研究所 | A kind of polishing method of air bearing Thrust Faces and axis of rotation verticality |
| CN112096739B (en) * | 2020-08-05 | 2021-12-21 | 佛山市华道超精科技有限公司 | Air-floatation guide rail type switchable rigid-flexible coupling motion platform |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2842057Y (en) * | 2005-09-30 | 2006-11-29 | 西安工业学院 | High rigidity gas hydrostatic bearing |
| CN200999795Y (en) * | 2007-01-30 | 2008-01-02 | 西安爱德华测量设备有限公司 | Air bearing |
-
2007
- 2007-01-30 CN CN2007100173227A patent/CN101235849B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2842057Y (en) * | 2005-09-30 | 2006-11-29 | 西安工业学院 | High rigidity gas hydrostatic bearing |
| CN200999795Y (en) * | 2007-01-30 | 2008-01-02 | 西安爱德华测量设备有限公司 | Air bearing |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-320028A 1997.12.12 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101235849A (en) | 2008-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101235849B (en) | Air bearing and its machining process | |
| CN108890504B (en) | Flexible pneumatic polishing head for processing complex parts | |
| CN203317205U (en) | Valve body sealing surface grinding tool of flat gate valve | |
| CN110000416A (en) | A kind of the power position control milling machine tool working and its control method of radial vibration auxiliary | |
| CN105773081B (en) | A kind of integral processing method of asymmetric anchor lip | |
| CN115383560A (en) | Polishing grinding head, polishing equipment and polishing method of aspheric surface mold of optical lens | |
| CN200999795Y (en) | Air bearing | |
| CN102152193B (en) | Method for grinding superhard mini-hemispheric coupling parts | |
| CN102642174A (en) | Systems and methods providing an air zone for a chucking stage | |
| CN2721313Y (en) | Flexible polisher of non-spherical optical component | |
| CN201483062U (en) | Movable scroll milling and clamping device of compressor | |
| CN201760821U (en) | Polishing sheet mounted on wood sanding machine | |
| CN205111464U (en) | Processing equipment of thick sapphire hemisphere of congruent , super hemisphere radome fairing | |
| CN102825510A (en) | Method for machining long shaft with round cross section | |
| CN207239977U (en) | A kind of thin slice heavy caliber DKDP polishing crystal fixtures | |
| CN208019993U (en) | A kind of grinding device of thin-walled parts | |
| CN102536748B (en) | York cylinder sleeve and processing method thereof | |
| CN105234846A (en) | Split type grinding wheel | |
| CN201023212Y (en) | Chemical machinery polishing grinding head | |
| CN104723216A (en) | Disc type arc air bag polishing head | |
| CN2813256Y (en) | Carbon fiber model airplane propeller blade forming mould | |
| CN215847578U (en) | Constant-pressure grinding device for inner cavity of mold | |
| CN209478011U (en) | A kind of spherical lens polishing paper slicing device | |
| CN2352308Y (en) | Vacuum self-exciting grinding and polishing device used for optical processing | |
| CN210909350U (en) | Strip-shaped flat steel polishing equipment |
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 |