CN105108182A - High-precision static-pressure main shaft - Google Patents
High-precision static-pressure main shaft Download PDFInfo
- Publication number
- CN105108182A CN105108182A CN201510651016.3A CN201510651016A CN105108182A CN 105108182 A CN105108182 A CN 105108182A CN 201510651016 A CN201510651016 A CN 201510651016A CN 105108182 A CN105108182 A CN 105108182A
- Authority
- CN
- China
- Prior art keywords
- main shaft
- bearing sleeve
- pressure
- axle bearing
- throttlers
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
Abstract
The invention discloses a high-pressure static-pressure main shaft and aims at providing the high-pressure static-pressure main shaft. The high-pressure static-pressure main shaft comprises a front bearing sleeve, a connecting sleeve, an adjusting pad, a rear bearing sleeve, a main shaft, oil sealing rings, throttlers and pressure measurers. The high-pressure static-pressure main shaft is characterized in that the two ends of the main shaft are conical, the two outer sides of the main shaft are provided with the front bearing sleeve and the rear bearing sleeve respectively, and flow returning holes and the throttlers are arranged in the front bearing sleeve and the rear bearing sleeve; the adjusting pad is arranged between the connecting sleeve and the rear bearing sleeve, the oil sealing rings are arranged at the contact parts of the front bearing sleeve and the rear bearing sleeve and the two ends of the main shaft, the pressure measurers are further arranged at one ends of the throttlers, the throttlers are thread-adjustable throttlers, one ends of the throttlers are provided with threads, the other ends of the throttlers are provided with sealing ring grooves, and oil inlet holes are formed between the threads and the sealing ring grooves. The high-pressure static-pressure main shaft is mainly used for high-precision numerical control machine tools.
Description
Technical field
The present invention relates to a kind of high-precision numerical control machine tool chief axis, particularly relate to a kind of high-accuracy hydrostatic spindle.
Background technology
Traditional main shaft is assembled by sleeve, bearing body, taper spindle, front tapered sleeve, rear tapered sleeve, ensures Product Precision, performance completely, due to complex structure, there is following shortcoming by machining accuracy:
1. front-end of spindle is sturdy, rear end is tiny, thus when running up rigidity and amount of deflection poor, be not suitable with efficient heavily loaded stock-removing machine and use.
2. main shaft is made up of multiple part, and the form and position tolerances such as circularity, cylindricity, axiality reduce greatly.
3. cannot accomplish that bearings at both ends is very coaxial, so bearing film rigidity just cannot be set up.
4. manufacture difficulty large, so cannot steady production, and later maintenance be difficult.
Summary of the invention
The object of the present invention is to provide a kind of high-accuracy hydrostatic spindle, to overcome above-mentioned shortcoming.
For achieving the above object, technical solution of the present invention is: a kind of high-accuracy hydrostatic spindle, comprise front axle bearing sleeve, adapter sleeve, adjusting pad, rear axle bearing sleeve, main shaft, oil seal ring, flow controller, manograph, it is characterized in that: the two ends of described main shaft 1 are tapered, both sides outside this main shaft are respectively equipped with front axle bearing sleeve 2 and rear axle bearing sleeve 3, before this, return port 4 and flow controller 8 is equipped with in rear axle bearing sleeve, adjusting pad 6 is provided with between adapter sleeve 5 and rear axle bearing sleeve 3, before, the contact position at rear axle bearing sleeve and main shaft two ends is provided with oil seal ring 7, one end of flow controller 8 is also provided with manograph 9.
Described flow controller 8 is screw thread adjustable chokes, and its one end is provided with screw thread 10, and the other end is provided with seal groove 12, has fuel feed hole 11 therebetween.
The invention has the beneficial effects as follows:
1. before and after, cone structure hydrostatic spindle can carry radial direction and axial load simultaneously, possesses powerful rigidity;
2. sturdy (small in ends tapered) in the middle of main shaft, greatly strengthen main shaft load resistant power in a dynamic state and bending ability, even if also can retainer shaft system stablize when heavy cut, there will not be seize phenomenon;
3. be marked with self-lubricating antifriction coating between bearing and main shaft, have self lubricity while ensureing its abrasion resistance, vital effect is played in the stable operation of shaft.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of flow controller of the present invention.
In figure: 1-main shaft, 2-front axle bearing sleeve, 3-rear axle bearing sleeve, 4-return port, 5-adapter sleeve, 6-adjusting pad, 7-oil seal ring, 8-flow controller, 9-manograph, 10-screw thread, 11-fuel feed hole, 12-seal groove.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention and detailed description of the invention thereof are described in further detail.
See Fig. 1-2, the present invention includes front axle bearing sleeve, adapter sleeve, adjusting pad, rear axle bearing sleeve, main shaft, oil seal ring, flow controller, manograph, it is characterized in that: the two ends of described main shaft 1 are tapered, both sides outside this main shaft are respectively equipped with front axle bearing sleeve 2 and rear axle bearing sleeve 3, return port 4 and flow controller 8 is equipped with in this axle bearing sleeve, adjusting pad 6 is provided with between adapter sleeve 5 and rear axle bearing sleeve 3, the contact position at axle bearing sleeve and main shaft two ends is provided with oil seal ring 7, and one end of flow controller 8 is also provided with manograph 9.
Described flow controller 8 is screw thread adjustable chokes, and its one end is provided with screw thread 10, and the other end is provided with seal groove 12, has fuel feed hole 11 therebetween.
Traditional main shaft is cylindrical, bearing supporting with it needs 4 to carry radial and axial power, and main shaft two ends of the present invention are tapered, only needs 2 bearings just can carry radial and axial power (because the area of axle bearing capacity increases) simultaneously.Described self-lubricating antifriction coating code name 312, for our company is self-produced.
Main shaft is connected with axle bearing sleeve by oil film, and is not directly connected with bearing holder (housing, cover).
Oil seal ring 7 prevents the lubricating oil in axle bearing sleeve from spilling.
Spill port 4 is by oil return to fuel tank, then in blowback axle bearing sleeve.
Adjusting pad 6 is for adjusting main shaft and axle bearing sleeve axis and radial clearance.
Flow controller 8, for adjusting the bearing capacity of oil film in main shaft and axle bearing sleeve, is provided with fuel feed hole between the screw thread of this flow controller and seal groove.
Manograph 9, for the pressure in on-line checkingi axle bearing sleeve, reflects main shaft running status, then adjusts flow controller.
Claims (2)
1. a high-accuracy hydrostatic spindle, comprise front axle bearing sleeve, adapter sleeve, adjusting pad, rear axle bearing sleeve, main shaft, oil seal ring, flow controller, manograph, it is characterized in that: the two ends of described main shaft (1) are tapered, both sides outside this main shaft are respectively equipped with front axle bearing sleeve (2) and rear axle bearing sleeve (3), before this, return port (4) and flow controller (8) is equipped with in rear axle bearing sleeve, adjusting pad (6) is provided with between adapter sleeve (5) and rear axle bearing sleeve (3), before, the contact position at rear axle bearing sleeve and main shaft two ends is provided with oil seal ring (7), one end of flow controller (8) is also provided with manograph (9).
2. by high-accuracy hydrostatic spindle described in claim 1, it is characterized in that described flow controller (8) is screw thread adjustable choke, its one end is provided with screw thread (10), and the other end is provided with seal groove (12), has fuel feed hole (11) therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510651016.3A CN105108182A (en) | 2015-10-10 | 2015-10-10 | High-precision static-pressure main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510651016.3A CN105108182A (en) | 2015-10-10 | 2015-10-10 | High-precision static-pressure main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105108182A true CN105108182A (en) | 2015-12-02 |
Family
ID=54656414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510651016.3A Pending CN105108182A (en) | 2015-10-10 | 2015-10-10 | High-precision static-pressure main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105108182A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106239186A (en) * | 2016-06-14 | 2016-12-21 | 杭州铁泰自动化科技有限公司 | A kind of high accuracy dynamic and static pressure axis system |
| CN106891020A (en) * | 2017-03-07 | 2017-06-27 | 广州市昊志机电股份有限公司 | A kind of impact resistance air-flotation electric spindle |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1203138A (en) * | 1996-12-31 | 1998-12-30 | 尹格索碾磨机公司 | High speed hydrostatic spindle |
| JP2004230510A (en) * | 2003-01-30 | 2004-08-19 | Nippei Toyama Corp | Pressure fluid supply device on machine tool |
| CN201231447Y (en) * | 2008-08-05 | 2009-05-06 | 孝感伟翔数控机床有限公司 | High pressure and high precision energy-saving dynamic-static pressure bearing for numerically controlling crank shaft grinding machine |
| CN201728548U (en) * | 2010-07-16 | 2011-02-02 | 许世雄 | Double-shaft linkage low-speed large-torque direct drive hydrostatic headstock device |
| CN102151852A (en) * | 2011-04-27 | 2011-08-17 | 天津大学 | Hydro-hybrid ceramic main shaft device |
| CN202367214U (en) * | 2011-12-29 | 2012-08-08 | 重庆机床(集团)有限责任公司 | Pivoting support structure of high-speed and high-rigidity main shaft system |
| CN203245725U (en) * | 2013-05-15 | 2013-10-23 | 何志坚 | Main shaft front end forked tail double-hydrostatic bearing grinding head |
| CN204504240U (en) * | 2015-03-25 | 2015-07-29 | 张黎明 | The efficient dynamic/static piezoelectric main shaft of a kind of high speed and super precision |
| CN204975364U (en) * | 2015-10-10 | 2016-01-20 | 湖南汉诺科技有限公司 | High -accuracy static pressure main shaft |
-
2015
- 2015-10-10 CN CN201510651016.3A patent/CN105108182A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1203138A (en) * | 1996-12-31 | 1998-12-30 | 尹格索碾磨机公司 | High speed hydrostatic spindle |
| EP0860232B1 (en) * | 1996-12-31 | 2003-06-18 | The Ingersoll Milling Machine Company | High speed hydrostatic spindle |
| JP2004230510A (en) * | 2003-01-30 | 2004-08-19 | Nippei Toyama Corp | Pressure fluid supply device on machine tool |
| CN201231447Y (en) * | 2008-08-05 | 2009-05-06 | 孝感伟翔数控机床有限公司 | High pressure and high precision energy-saving dynamic-static pressure bearing for numerically controlling crank shaft grinding machine |
| CN201728548U (en) * | 2010-07-16 | 2011-02-02 | 许世雄 | Double-shaft linkage low-speed large-torque direct drive hydrostatic headstock device |
| CN102151852A (en) * | 2011-04-27 | 2011-08-17 | 天津大学 | Hydro-hybrid ceramic main shaft device |
| CN202367214U (en) * | 2011-12-29 | 2012-08-08 | 重庆机床(集团)有限责任公司 | Pivoting support structure of high-speed and high-rigidity main shaft system |
| CN203245725U (en) * | 2013-05-15 | 2013-10-23 | 何志坚 | Main shaft front end forked tail double-hydrostatic bearing grinding head |
| CN204504240U (en) * | 2015-03-25 | 2015-07-29 | 张黎明 | The efficient dynamic/static piezoelectric main shaft of a kind of high speed and super precision |
| CN204975364U (en) * | 2015-10-10 | 2016-01-20 | 湖南汉诺科技有限公司 | High -accuracy static pressure main shaft |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106239186A (en) * | 2016-06-14 | 2016-12-21 | 杭州铁泰自动化科技有限公司 | A kind of high accuracy dynamic and static pressure axis system |
| CN106891020A (en) * | 2017-03-07 | 2017-06-27 | 广州市昊志机电股份有限公司 | A kind of impact resistance air-flotation electric spindle |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151202 |
|
| RJ01 | Rejection of invention patent application after publication |