JPS57163031A - Main spindle device of machine tool - Google Patents
Main spindle device of machine toolInfo
- Publication number
- JPS57163031A JPS57163031A JP4312881A JP4312881A JPS57163031A JP S57163031 A JPS57163031 A JP S57163031A JP 4312881 A JP4312881 A JP 4312881A JP 4312881 A JP4312881 A JP 4312881A JP S57163031 A JPS57163031 A JP S57163031A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- main spindle
- speed range
- hydrostatic
- stator
- 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.)
- Granted
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
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/38—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using fluid bearings or fluid cushion supports
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
PURPOSE:To high accurately perform cutting work in a full range, by increasing rigidity of a main spindle at a low speed range while reducing heat generation at a high speed range, that is, by applying a pressure oil hydrostatic bearing and pressure air hydrostatic bearing to the bearing of the main spindle in a machine tool and selectively using the both hydrostatic bearings. CONSTITUTION:A main spindle 16, fixed with a rotor 138, is axially supported to a main spindle head 10, provided with a stator 132, by radial bearings 18, 20 and thrust bearing 40. The stator 132 and the rotor 138 constitute an electric motor, and excitation power of the stator 132 is controlled to control rotary speed of the main spindle 16. Each bearing is a hydrostatic bearing, provided with drain holes 26 at both sides of a jet 22, jetting pressure oil, and with a pressure air jet 30 in the outside of the drain hole, and rotary speed of the main spindle is measured by a unit 142 to feed pressure oil at a low speed range and use the bearing as an oil hydrostatic bearing, while at transfer to a high speed range, a drain open-close valve 102 is closed with a time delay from a pressure oil open-close valve 82, and residual oil in the pressure jet 22 or the like is removed to use the bearing as an air hydrostatic bearing at a high speed range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4312881A JPS57163031A (en) | 1981-03-26 | 1981-03-26 | Main spindle device of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4312881A JPS57163031A (en) | 1981-03-26 | 1981-03-26 | Main spindle device of machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57163031A true JPS57163031A (en) | 1982-10-07 |
| JPS617881B2 JPS617881B2 (en) | 1986-03-10 |
Family
ID=12655198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4312881A Granted JPS57163031A (en) | 1981-03-26 | 1981-03-26 | Main spindle device of machine tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57163031A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02271105A (en) * | 1989-04-13 | 1990-11-06 | Isuzu Motors Ltd | Bearing device for high speed rotation axis |
| KR100799259B1 (en) | 2006-08-17 | 2008-01-30 | 두산인프라코어 주식회사 | Sealing device of high speed hydraulic static pressure spindle |
| US7547168B1 (en) * | 2008-04-17 | 2009-06-16 | Kosmowski Wojciech B | High speed spindle system and centrifugal chuck |
| JP2009195993A (en) * | 2008-02-19 | 2009-09-03 | Okamoto Machine Tool Works Ltd | Surface grinding head system for substrate |
| CN105952797A (en) * | 2016-03-22 | 2016-09-21 | 宁波圣圭精工科技有限公司 | Static-pressure spindle |
| CN111927886A (en) * | 2020-07-15 | 2020-11-13 | 杭州电子科技大学 | AACMM high-precision joint based on static pressure air bearing and supporting method thereof |
-
1981
- 1981-03-26 JP JP4312881A patent/JPS57163031A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02271105A (en) * | 1989-04-13 | 1990-11-06 | Isuzu Motors Ltd | Bearing device for high speed rotation axis |
| KR100799259B1 (en) | 2006-08-17 | 2008-01-30 | 두산인프라코어 주식회사 | Sealing device of high speed hydraulic static pressure spindle |
| JP2009195993A (en) * | 2008-02-19 | 2009-09-03 | Okamoto Machine Tool Works Ltd | Surface grinding head system for substrate |
| US7547168B1 (en) * | 2008-04-17 | 2009-06-16 | Kosmowski Wojciech B | High speed spindle system and centrifugal chuck |
| CN105952797A (en) * | 2016-03-22 | 2016-09-21 | 宁波圣圭精工科技有限公司 | Static-pressure spindle |
| CN111927886A (en) * | 2020-07-15 | 2020-11-13 | 杭州电子科技大学 | AACMM high-precision joint based on static pressure air bearing and supporting method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS617881B2 (en) | 1986-03-10 |
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