JP2016136048A - 静圧流体軸受装置、静圧流体軸受装置を用いた工作機械用主軸装置及び静圧流体軸受装置の製造方法 - Google Patents
静圧流体軸受装置、静圧流体軸受装置を用いた工作機械用主軸装置及び静圧流体軸受装置の製造方法 Download PDFInfo
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- 239000012530 fluid Substances 0.000 title claims abstract description 30
- 230000003068 static effect Effects 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000005192 partition Methods 0.000 claims abstract description 66
- 229910000897 Babbitt (metal) Inorganic materials 0.000 claims abstract description 43
- 230000002706 hydrostatic effect Effects 0.000 claims description 65
- 239000000314 lubricant Substances 0.000 claims description 56
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 7
- 230000001050 lubricating effect Effects 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002480 mineral oil Substances 0.000 claims description 6
- 235000010446 mineral oil Nutrition 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
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- 238000001514 detection method Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000010008 shearing Methods 0.000 description 4
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
- F16C32/064—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being supplied under pressure
- F16C32/0651—Details of the bearing area per se
- F16C32/0659—Details of the bearing area per se of pockets or grooves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/003—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0681—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load
- F16C32/0685—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for radial load only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2210/00—Fluids
- F16C2210/10—Fluids water based
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2322/00—Apparatus used in shaping articles
- F16C2322/39—General buildup of machine tools, e.g. spindles, slides, actuators
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Turning (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
【解決手段】静圧流体軸受装置であって、砥石軸131(回転軸)を回転支持するための静圧部18を有する軸受メタルを備え、静圧部18は、軸受隙間20と、軸受面部22と、複数のポケット24と、仕切り板48と、を有し、砥石軸131の回転方向において仕切り板48とポケットの縁部46との間に隙間50が形成されており、隙間50はポケット24内において回転方向の前後に設けられており、軸受隙間20は、第1軸受隙間Cと、第2軸受隙間Hと、を有し、第2軸受隙間Hは、第1軸受隙間Cより大きい関係である。
【選択図】図6
Description
12 砥石軸ハウジング
14 軸受メタル
16 流路
18 静圧部
20 軸受隙間
22 軸受面部
24 ポケット
26 ポケットの底部
40 円筒状部材
42 環状部位
44 柱部位
46 ポケットの縁部
48 仕切り板
50 隙間
51 第1スリット
52 第2スリット
110 基台
111 Z軸方向ガイドレール
112 Z軸方向スライドテーブル
113 Z軸方向送りねじ
114 Z軸方向駆動モータ
115 Z軸方向位置検出手段
121 X軸方向ガイドレール
122 X軸方向スライドテーブル
123 X軸方向送りねじ
124 X軸方向駆動モータ
125 X軸方向位置検出手段
126 砥石駆動モータ
127 駆動プーリ
128 従動プーリ
129 ベルト
130 砥石軸ホルダ
131 砥石軸(回転軸)
132 砥石
140 ワーク保持装置
141 保持台
142 保持軸ハウジング
143 保持軸部材
144 センタ部材
150 ワーク保持装置
151 保持台
152 保持軸ハウジング
153 保持軸部材
154 センタ部材
160 ツルーイング装置
177 ツルア
180 制御手段
C 第1軸受隙間
H 第2軸受隙間
J 第3軸受隙間
L1 砥石回転軸
L2 ワーク回転軸
L3 ツルア回転軸
P ポンプ
R 潤滑液剤
U 砥石軸の周速
VM 仮想平面
W ワーク
Claims (9)
- 静圧流体軸受装置であって、
回転軸を回転支持するための静圧部を有する軸受メタルを備え、
前記静圧部は、前記回転軸の表面との間に潤滑液剤が充填される軸受隙間と、前記回転軸の表面と並行する軸受面部と、該軸受面部の周方向に隣接して凹設される複数のポケットと、該ポケット内に収容され且つ前記ポケットの底部と前記回転軸の表面の間を仕切る仕切り板と、を有し、
前記回転軸の回転方向において前記仕切り板と前記ポケットの縁部との間に隙間が形成されており、
前記隙間は前記ポケット内において回転方向の前後に設けられており、
前記軸受隙間は、前記回転軸の表面と前記軸受面部との間の第1軸受隙間と、前記回転軸の表面と前記仕切り板との間の第2軸受隙間と、を有し、
前記第2軸受隙間は、前記第1軸受隙間より大きい関係である静圧流体軸受装置。 - 請求項1に記載の静圧流体軸受装置であって、
前記潤滑液剤の密度をρ、
前記潤滑液剤の粘性係数をμ、
前記回転軸の周速をU、
前記第2軸受隙間をHである場合に、
前記第2軸受隙間におけるレイノルズ数ReはRe=ρUH/μで表され、
前記回転軸が回転支持される状態の前記第2軸受隙間における潤滑液剤の流れはRe<2000である静圧流体軸受装置。 - 請求項1または請求項2に記載の静圧流体軸受装置であって、
前記隙間は前記回転軸の軸方向に並行するスリットとして設けられており、
前記スリットは前記回転軸の回転方向で見て下流側の第1スリットと上流側の第2スリットを有しており、
前記第1スリットと前記第2スリットの開口幅は前記第2軸受隙間より大きい静圧流体軸受装置。 - 請求項1から請求項3のいずれかに記載の静圧流体軸受装置であって、
前記潤滑液剤は、水または組成に占める水の割合が90%以上の水溶液または、低粘度鉱油である静圧流体軸受装置。 - 請求項1から請求項4のいずれかに記載の静圧流体軸受装置であって、
前記回転軸が回転支持される状態の前記第2軸受隙間における前記潤滑液剤は前記回転軸の回転方向に沿って流れる層流であり、
前記ポケットの底部と前記仕切り板との間の第3軸受隙間における前記潤滑液剤は前記回転軸の反回転方向の流れである静圧流体軸受装置。 - 請求項1から請求項5のいずれかに記載の静圧流体軸受装置であって、
前記仕切り板と前記軸受メタルとは、別体で設けられている静圧流体軸受装置。 - 請求項6に記載の静圧流体軸受装置であって、
前記仕切り板と前記軸受メタルとは、別材質であり、
前記仕切り板は、前記軸受メタルより低強度の材質で設けられている静圧流体軸受装置。 - 請求項1から請求項7のいずれかに記載の静圧流体軸受装置を用いて工作機械における工作機械用主軸を回転支持する工作機械用主軸装置。
- 金属製の円筒状部材の外周面と内周面に切削加工を施して、軸方向両端に配設される環状部位と、該軸方向両端の環状部位を連結し周方向に間隔をあけて配置される複数の柱部位と、該柱部位によって区画形成される複数のポケットと、該ポケット内に円弧状の仕切り板とを形成し、
回転軸を回転支持するための軸受メタルに対し、前記切削加工後の円筒状部材を焼き嵌めによって取り付ける静圧流体軸受装置の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2015011584A JP6476910B2 (ja) | 2015-01-23 | 2015-01-23 | 静圧流体軸受装置、静圧流体軸受装置を用いた工作機械用主軸装置及び静圧流体軸受装置の製造方法 |
US15/002,074 US9822815B2 (en) | 2015-01-23 | 2016-01-20 | Hydrostatic bearing apparatus, machine-tool main-spindle apparatus including hydrostatic bearing apparatus, and method for manufacturing hydrostatic bearing apparatus |
CN201610040745.XA CN105817651B (zh) | 2015-01-23 | 2016-01-21 | 静压流体轴承装置及其制造方法、机床用主轴装置 |
DE102016100996.2A DE102016100996A1 (de) | 2015-01-23 | 2016-01-21 | Hydrostatische Lagervorrichtung, Werkzeugmaschinenhauptspindelvorrichtung mit hydrostatischer Lagervorrichtung und Verfahren zur Herstellung von hydrostatischer Lagervorrichtung |
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JP2015011584A JP6476910B2 (ja) | 2015-01-23 | 2015-01-23 | 静圧流体軸受装置、静圧流体軸受装置を用いた工作機械用主軸装置及び静圧流体軸受装置の製造方法 |
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JP (1) | JP6476910B2 (ja) |
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DE (1) | DE102016100996A1 (ja) |
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DE102018211620A1 (de) * | 2018-07-12 | 2020-01-16 | Skf Marine Gmbh | Gleitlager |
JP6775276B2 (ja) * | 2019-03-15 | 2020-10-28 | 株式会社ソディック | 静圧流体軸受装置 |
TWI768896B (zh) * | 2021-05-13 | 2022-06-21 | 御成工業有限公司 | 主軸結構 |
Citations (4)
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JPS54152738A (en) * | 1978-05-17 | 1979-12-01 | Nat Res Dev | Hydrostatic bearing |
JPS57107426A (en) * | 1980-11-07 | 1982-07-03 | Nat Res Dev | Fluid bearing |
JP2001304260A (ja) * | 2000-04-27 | 2001-10-31 | Toyoda Mach Works Ltd | 流体軸受装置及びこの流体軸受装置を用いた研削盤の砥石軸装置 |
JP2008149434A (ja) * | 2006-12-20 | 2008-07-03 | Okamoto Machine Tool Works Ltd | 平面研削装置 |
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FR1418179A (fr) * | 1964-10-06 | 1965-11-19 | Commissariat Energie Atomique | Perfectionnement aux paliers à fluide |
IE920985A1 (en) * | 1991-04-15 | 1992-10-21 | Russell D Ide | Hydrodynamic Bearings Having Spaced Bearing Pads and Methods¹of Making Same |
US5484208A (en) * | 1994-05-09 | 1996-01-16 | Massachusetts Institute Of Technology | Elastically supported self-compensating flow restrictors for optimizing hydrostatic bearing performance |
BE1012894A3 (nl) * | 1999-09-14 | 2001-05-08 | Atlas Copco Airpower Nv | Gecombineerd radiaal-axiaal glijlager. |
US6474867B1 (en) * | 2000-02-17 | 2002-11-05 | Jerome Frank Perrone, Jr. | Shuttle compensated hydrostatic bearing |
US7470064B2 (en) * | 2003-07-05 | 2008-12-30 | Man B&W Diesel Ag | Axial thrust bearing |
CN102943812B (zh) * | 2011-08-15 | 2015-03-04 | 宋震国 | 主动补偿式液静压轴承及使用其的液静压轴承模块 |
JP2013096445A (ja) * | 2011-10-28 | 2013-05-20 | Jtekt Corp | 可変絞り形静圧軸受 |
TWI458586B (zh) * | 2012-08-21 | 2014-11-01 | Ind Tech Res Inst | 複合式可變流阻液靜壓滑塊模組 |
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2015
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- 2016-01-20 US US15/002,074 patent/US9822815B2/en active Active
- 2016-01-21 CN CN201610040745.XA patent/CN105817651B/zh not_active Expired - Fee Related
- 2016-01-21 DE DE102016100996.2A patent/DE102016100996A1/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54152738A (en) * | 1978-05-17 | 1979-12-01 | Nat Res Dev | Hydrostatic bearing |
JPS57107426A (en) * | 1980-11-07 | 1982-07-03 | Nat Res Dev | Fluid bearing |
JP2001304260A (ja) * | 2000-04-27 | 2001-10-31 | Toyoda Mach Works Ltd | 流体軸受装置及びこの流体軸受装置を用いた研削盤の砥石軸装置 |
JP2008149434A (ja) * | 2006-12-20 | 2008-07-03 | Okamoto Machine Tool Works Ltd | 平面研削装置 |
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CN105817651B (zh) | 2019-11-22 |
DE102016100996A1 (de) | 2016-07-28 |
CN105817651A (zh) | 2016-08-03 |
JP6476910B2 (ja) | 2019-03-06 |
US20160215818A1 (en) | 2016-07-28 |
US9822815B2 (en) | 2017-11-21 |
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