CN106271935B - A kind of polishing method of air bearing Thrust Faces and axis of rotation verticality - Google Patents
A kind of polishing method of air bearing Thrust Faces and axis of rotation verticality Download PDFInfo
- Publication number
- CN106271935B CN106271935B CN201510363181.9A CN201510363181A CN106271935B CN 106271935 B CN106271935 B CN 106271935B CN 201510363181 A CN201510363181 A CN 201510363181A CN 106271935 B CN106271935 B CN 106271935B
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- China
- Prior art keywords
- main shaft
- axis
- air
- thrust faces
- verticality
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Classifications
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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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
-
- 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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Manufacture Of Motors, Generators (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention belongs to the polishing method technical fields of verticality, and in particular to a kind of polishing method for meeting air bearing Thrust Faces and axis of rotation verticality that air bearing Thrust Faces and axis of rotation verticality require；This method determines axis the following steps are included: step 1；Step 2 repairs and grinds bottom face；Step 3 determines axis again；Step 4 repairs and grinds Thrust Faces；The present invention can reduce requirement of the air-floating main shaft to machining accuracy, effectively reduce cost, and improve yield rate；The verticality for breaching Thrust Faces and axis of rotation can only be by the problem of machining accuracy guarantee.
Description
Technical field
The invention belongs to the polishing method technical fields of verticality, and in particular to a kind of air bearing Thrust Faces and revolution
The polishing method of axis verticality.
Background technique
Air bearing is due to using the lower air of stickiness as lubricant medium, so having compared with traditional bearing much has
Point, such as low friction, high revolving speed, in high precision with stability is good, small temperature rise.It is required between the air-floating main shaft and axle sleeve of air bearing
There are one 10 μm of air film gap, if air-film thickness unevenly will lead to the different of air bearing stiffness and bearing capacity
It causes, serious influence use environment.The most direct influence factor of air bearing air-film thickness is exactly main shaft Thrust Faces and its time
The verticality of shaft axis.Therefore the Thrust Faces and axis of rotation of air bearing be must be strictly controlled in air bearing manufacture
Verticality index.
It is the special construction of hollow shaft in view of air bearing air-floating main shaft, center hole can not be processed in shaft end in processing,
Excircle orientation can only be relied on when to the revolution turning of main shaft, the verticality of such Thrust Faces and axis of rotation can only be by processing
Accuracy guarantee.Since this special construction of air bearing belongs to Single unit job lot production, to reach design and real requirement, usually
Using the high processing method of precision, the air bearing of this method manufacture is at high cost, and certified product rate is low, greatly limits air axis
Hold the popularization and application in each field.
It is therefore desirable to be adjusted for air bearing Thrust Faces and the processing technology of axis of rotation verticality, to biography
The processing method of system improves, and proposes that a kind of be further added by after standard machinery processing repairs the method for grinding operation, to cope with air
The production requirement of the high certified product rate of bearing high-volume.
Summary of the invention
The technical problem to be solved by the present invention is to a kind of meet air bearing thrust in view of the shortcomings of the prior art, providing
The polishing method of air bearing Thrust Faces and axis of rotation verticality that end face and axis of rotation verticality require.
The technical scheme adopted by the invention is that:
A kind of polishing method of air bearing Thrust Faces and axis of rotation verticality, this method the following steps are included:
Step 1 determines axis；
Step 2 repairs and grinds bottom face；
Step 3 determines axis again；
Step 4 repairs and grinds Thrust Faces.
In the step 1, for the air-floating main shaft ground is repaired, main shaft outer circle cylindricity first should be less than 0.01mm, lead to
The axial location of main shaft can be measured by crossing detecting instrument, used pen to mark "+" or "-" on main shaft and repaired as next step and grind work
Trend instruction.
In the step 2, lappingout main shaft lower end surface keeps it vertical with axis of rotation.
In the step 3, the air-floating main shaft after grinding is reapposed on cylindricity detector, detecting its axis is
It is no to change, if main-shaft axis does not change, illustrate that air-floating main shaft axis and the verticality of main shaft lower end surface are good.
In the step 4, a kind of grinding tool is designed first, and the grinding tool is cylinder-shaped sleeve, cast iron materials；
Grinding working face is axle sleeve shaft end, for grinding the Thrust Faces of air-floating main shaft；On the basis of the main shaft lower end surface after lappingout,
With the depth of parallelism of parallelism detector measurement Thrust Faces and main shaft lower end surface on marble plate；If the depth of parallelism is improper,
It makes a mark on air-floating main shaft, re-grinds Thrust Faces to required value.
The grinding tool is cast iron materials cartridge sleeve.
The beneficial effects of the present invention are:
1. requirement of the air-floating main shaft to machining accuracy can be reduced, effectively reduce cost, improves yield rate；
2. ensure that the verticality of Thrust Faces and axis of rotation can only rely on machining accuracy；
Specific embodiment
One kind provided by the invention is introduced below with reference to embodiment:
A kind of polishing method of air bearing Thrust Faces and axis of rotation verticality, this method the following steps are included:
Step 1 determines axis；
Step 2 repairs and grinds bottom face；
Step 3 determines axis again；
Step 4 repairs and grinds Thrust Faces.
In the step 1, for the air-floating main shaft ground is repaired, main shaft outer circle cylindricity first should be less than 0.01mm, pass through
Detecting instrument can measure the axial location of main shaft, use pen to mark "+" or "-" on main shaft and repair as next step and grind work
Trend instruction.
In the step 2, lappingout main shaft lower end surface keeps it vertical with axis of rotation.
In the step 3, the air-floating main shaft after grinding is reapposed on cylindricity detector, detecting its axis is
It is no to change, if main-shaft axis does not change, illustrate that air-floating main shaft axis and the verticality of main shaft lower end surface are good.
In the step 4, a kind of grinding tool is designed first, and the grinding tool is cylinder-shaped sleeve, cast iron materials；
Grinding working face is axle sleeve shaft end, for grinding the Thrust Faces of air-floating main shaft；On the basis of the main shaft lower end surface after lappingout,
With the depth of parallelism of parallelism detector measurement Thrust Faces and main shaft lower end surface on marble plate；If the depth of parallelism is improper,
It makes a mark on air-floating main shaft, re-grinds Thrust Faces to required value.
The grinding tool is cast iron materials cartridge sleeve.
Air bearing, that is, air-floating main shaft first by described through over mechanical processing is placed on cylindricity detector, operation circle
Column degree detector obtains the rough position of its air-floating main shaft axis of rotation, and repairing for lower end surface is marked on air-floating main shaft and grinds
Gesture.
Air-floating main shaft is placed on grinding flat plate, according to the trend of grinding is repaired obtained in previous step, grind fall down it is extra on end face
Material.Abrasive sand is washed after slightly grinding, is placed on cylindricity detector, duplicate measurements axial location, the side of grinding is repaired in determination
To.Until ensuring that the axis of rotation of air-floating main shaft is vertical with its lower end surface, the error of perpendicularity of axis of rotation and lower end surface is obtained
Wherein δ air bearing air-floating main shaft Thrust Faces and the requirement of the verticality of axis of rotation.
For air-floating main shaft on the basis of lower end surface, the Thrust Faces with amesdial measurement air bearing are parallel with lower end surface
Degree, marks the biggish region of error.
Grinding sleeve is designed, cavity radius gradually becomes smaller from top to bottom.Bottom radius is 0.5mm bigger than the axle journal of air-floating main shaft to be
Can, top radius is 3~5mm bigger than bottom radius.Bottom is working face, and the radial gap of 2mm wide is machined on working face.Grinding
Set selects cast iron materials production, and phosphorus content is more, and wearability is good.
Grinding is mounted in the Thrust Faces to be repaired ground, repairs and grinds Thrust Faces.Abrasive sand in cleaning Thrust Faces is simultaneously
It is placed on marble plate, measures the depth of parallelism with amesdial again.It marks the biggish region of error and re-grinds the depth of parallelism
Until flatness is met the requirements.Obtain the error of perpendicularity of lower end surface and Thrust Faces
Wherein δ air bearing air-floating main shaft Thrust Faces and the requirement of the verticality of axis of rotation.
By error analysis on Uncertainty: its error of method described in the present invention
Claims (1)
1. a kind of polishing method of air bearing Thrust Faces and axis of rotation verticality, it is characterised in that: this method include with
Lower step:
Step 1 determines axis；
Step 2 repairs and grinds bottom face；
Step 3 determines axis again；
Step 4 repairs and grinds Thrust Faces；
In the step 1, for the air-floating main shaft ground is repaired, main shaft outer circle cylindricity first should be less than 0.01mm, pass through detection
Instrument can measure the axial location of main shaft, use pen to mark "+" or "-" on main shaft and repair the trend for grinding work as next step
Instruction；
In the step 2, lappingout main shaft lower end surface keeps it vertical with axis of rotation；
In the step 3, the air-floating main shaft after grinding is reapposed on cylindricity detector, detects whether its axis is sent out
Changing illustrates that air-floating main shaft axis and the verticality of main shaft lower end surface are good if main-shaft axis does not change；
In the step 4, a kind of grinding tool is designed first, and the grinding tool is cylinder-shaped sleeve, cast iron materials；Grinding
Working face is axle sleeve shaft end, for grinding the Thrust Faces of air-floating main shaft；On the basis of the main shaft lower end surface after lappingout, in Dali
With the depth of parallelism of parallelism detector measurement Thrust Faces and main shaft lower end surface on stone plate；If the depth of parallelism is improper, in air bearing
It makes a mark on main shaft, re-grinds Thrust Faces to required value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510363181.9A CN106271935B (en) | 2015-06-26 | 2015-06-26 | A kind of polishing method of air bearing Thrust Faces and axis of rotation verticality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510363181.9A CN106271935B (en) | 2015-06-26 | 2015-06-26 | A kind of polishing method of air bearing Thrust Faces and axis of rotation verticality |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106271935A CN106271935A (en) | 2017-01-04 |
| CN106271935B true CN106271935B (en) | 2019-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510363181.9A Active CN106271935B (en) | 2015-06-26 | 2015-06-26 | A kind of polishing method of air bearing Thrust Faces and axis of rotation verticality |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5415477A (en) * | 1993-07-16 | 1995-05-16 | Koyo Seiko Co., Ltd. | Hydrostatic gas bearing capable of easily assembling bearing units keeping perpendicularity of the bearing units |
| CN1307189A (en) * | 1999-12-17 | 2001-08-08 | Skf诺瓦股份公司 | Method for manufacturing pneumatic or hydromechanic bearing and bearing manufactured by the method |
| CN1715690A (en) * | 2004-06-28 | 2006-01-04 | 日本电产株式会社 | Method for producing thrust plate and method for producing shaft for hydrodynamic bearing |
| CN101235849A (en) * | 2007-01-30 | 2008-08-06 | 西安爱德华测量设备有限公司 | Air bearing and its machining process |
| CN102312921A (en) * | 2010-07-02 | 2012-01-11 | 东上国际股份有限公司 | Method for manufacturing air bearing |
| CN102528581A (en) * | 2012-02-16 | 2012-07-04 | 温州神一微型轴有限公司 | Technology for machining micro shaft with fillet |
| CN102615559A (en) * | 2012-04-19 | 2012-08-01 | 天津第一机床总厂 | Fine machining device and machining method of excircle of big tapered-hole spindle of large gear milling machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273278B (en) * | 2013-06-17 | 2015-12-02 | 沈阳飞机工业（集团）有限公司 | A kind of processing method of perpendicularity gauge |
| CN203853873U (en) * | 2014-05-14 | 2014-10-01 | 河北大唐国际唐山热电有限责任公司 | Grinding device of steam inlet valve spool and grinding device of steam inlet valve seat |
-
2015
- 2015-06-26 CN CN201510363181.9A patent/CN106271935B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5415477A (en) * | 1993-07-16 | 1995-05-16 | Koyo Seiko Co., Ltd. | Hydrostatic gas bearing capable of easily assembling bearing units keeping perpendicularity of the bearing units |
| CN1307189A (en) * | 1999-12-17 | 2001-08-08 | Skf诺瓦股份公司 | Method for manufacturing pneumatic or hydromechanic bearing and bearing manufactured by the method |
| CN1715690A (en) * | 2004-06-28 | 2006-01-04 | 日本电产株式会社 | Method for producing thrust plate and method for producing shaft for hydrodynamic bearing |
| CN101235849A (en) * | 2007-01-30 | 2008-08-06 | 西安爱德华测量设备有限公司 | Air bearing and its machining process |
| CN102312921A (en) * | 2010-07-02 | 2012-01-11 | 东上国际股份有限公司 | Method for manufacturing air bearing |
| CN102528581A (en) * | 2012-02-16 | 2012-07-04 | 温州神一微型轴有限公司 | Technology for machining micro shaft with fillet |
| CN102615559A (en) * | 2012-04-19 | 2012-08-01 | 天津第一机床总厂 | Fine machining device and machining method of excircle of big tapered-hole spindle of large gear milling machine |
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| Publication number | Publication date |
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| CN106271935A (en) | 2017-01-04 |
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