WO1994002283B1 - Spindle and toolholder for machine tool - Google Patents
Spindle and toolholder for machine toolInfo
- Publication number
- WO1994002283B1 WO1994002283B1 PCT/US1993/006881 US9306881W WO9402283B1 WO 1994002283 B1 WO1994002283 B1 WO 1994002283B1 US 9306881 W US9306881 W US 9306881W WO 9402283 B1 WO9402283 B1 WO 9402283B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spindle
- sleeve
- tool
- frame
- axially
- Prior art date
Links
- 230000001808 coupling Effects 0.000 claims abstract 2
- 238000010168 coupling process Methods 0.000 claims abstract 2
- 238000005859 coupling reaction Methods 0.000 claims abstract 2
- 239000012530 fluid Substances 0.000 abstract 1
Abstract
A tubular spindle-drive sleeve (34) rotates about longitudinal axis (20) while axially immovable. Spindle (31) is axially slidable in and rotatably driven by the sleeve. A linear drive, non-rotating ball screw (51) connected to the upper end of the spindle (31) is driven axially by a powered ball nut (66) to advance and retract the spindle in the sleeve. Coupling plug (19) fixed at the bottom of spindle (31) connects to any one of various toolholders (23) in turret (21). Axial movement of spindle (31) by ball nut (66) automatically couples and decouples the spindle to and from the toolholder (23). Fluid supply (82) down through the spindle is provided. In figure 4, air motor (93) mounted inside spindle (91) is coupled to a second spindle (116) in the changeable toolholder (97) to drive a cutting tool (122) at a much higher rotational rate than is possible with the main spindle alone.
Claims
AMENDED CLAIMS
[received by the International Bureau on 18 January 1994 (18.01.94);
original claims 1, 22, 25 and 26 amended; original claims 23 and 24 cancelled;
remaining claims unchanged (3 pages)]
1. In a machine having a frame and a spindle for driving a tool in rotation, the improvement comprising:
an elongate drive sleeve having a longitudinal axis and rotatably mounted in the frame to rotate about its axis;
a spindle received in the sleeve and coupled to the sleeve to rotate with the sleeve when the sleeve is rotated and the spindle being axially movable in the sleeve relative to the sleeve;
a first spindle drive motor coupled to the sleeve to drive the sleeve and, thereby, the spindle, in rotation;
a screw axially aligned with and coupled to one end of the spindle to drive the spindle axially, the screw having rotation limiting means thereon to allow differential rotation of the spindle and screw;
a nut rotatably mounted Lo the frame to rotate about its axis and engaged with the screw to axially advance and retract the screw and thereby, the spindle, in response to rotation of the nut in one and the opposite rotational direction about its axis; and
a second motor coupled to the nut to rotate the nut for axial drive of the spindle.
2. The improvement of claim 1 and wherein:
the sleeve is axially confined in the frame to prevent axial movement of the sleeve in the frame.
3. The improvement of claim 2 and further comprising: first and second axially spaced bearings mounted in the frame and both radially and axially locating the sleeve in the frame and preventing axial movement of the sleeve in the frame.
4. The improvement of claim 2 and wherein:
a plurality of tool holding toolholders is held in the magazine;
at least one of the toolholders in the magazine has a toolholder spindle rotatably mounted therein;
a clutch is provided on the output member and toolholder spindle and engaged when the first-mentioned spindle pushes the toolholder out of the magazine; and
a workpiece treating tool is secured in the toolholder spindle. 21. The improvement of claim 20 and wherein:
the machine spindle is vertical; and
the machine has a workpiece holder mounted to the frame under the spindle and movable in translation in a horizontal plane to move a workpiece into various positions under the spindle for treatment by various ones of the tools,
one-at-a-time.
22. A method of moving a workpiece treating tool and comprising the steps of:
holding the tool on a spindle;
sliding the spindle longitudinally one direction in a sleeve rotatable on an axis, while limiting axial movement of the sleeve and precluding relative rotation between the spindle and the sleeve;
pulling the tool off the spindle and storing the tool as the spindle is sliding longitudinally in the sleeve;
sliding the spindle longitudinally in the opposite direction in the sleeve and thereupon coupling another tool onto the spindle;
driving the spindle rotationally about the axis and thereby driving the tool rotationally about the axis while operating on a workpiece; and
driving the tool at a rotational speed higher than the speed of the spindle by means of a motor inside the spindle.
25. A method of moving a workpiece treating tool and comprising the steps of:
holding the tool on a spindle;
sliding the spindle longitudinally one direction in a sleeve rotatable on an axis, while limiting axial movement of the sleeve and precluding relative rotation between the spindle and the sleeve;
pulling the tool off the spindle and storing the tool as the spindle is sliding longitudinally in the sleeve; and
rotationally driving an axially confined ball nut on a ball screw attached to the spindle to drive the spindle longitudinally in the sleeve.
26. The method of claim 25 and further comprising the step of:
preventing rotation of the ball screw during rotation of the ball nut thereon.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU47800/93A AU4780093A (en) | 1992-07-24 | 1993-07-22 | Spindle and toolholder for machine tool |
| JP6504679A JPH08501986A (en) | 1992-07-24 | 1993-07-22 | Machine tool spindle and tool holder |
| DE69323748T DE69323748T2 (en) | 1992-07-24 | 1993-07-22 | SPINDLE AND TOOL HOLDER FOR MACHINE TOOLS |
| EP93918303A EP0651686B1 (en) | 1992-07-24 | 1993-07-22 | Spindle and toolholder for machine tool |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/920,125 US5242360A (en) | 1992-07-24 | 1992-07-24 | Spindle and toolholder for machine tool |
| US07/920,125 | 1992-07-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1994002283A1 WO1994002283A1 (en) | 1994-02-03 |
| WO1994002283B1 true WO1994002283B1 (en) | 1994-03-03 |
Family
ID=25443211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1993/006881 WO1994002283A1 (en) | 1992-07-24 | 1993-07-22 | Spindle and toolholder for machine tool |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5242360A (en) |
| EP (1) | EP0651686B1 (en) |
| JP (1) | JPH08501986A (en) |
| AU (1) | AU4780093A (en) |
| DE (1) | DE69323748T2 (en) |
| WO (1) | WO1994002283A1 (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU708252B2 (en) * | 1993-10-08 | 1999-07-29 | Hunter Valley Engineering & Constructions Pty Ltd | Drive assembly for machines |
| US5613929A (en) * | 1995-06-07 | 1997-03-25 | Hurco Companies, Inc. | Machine tool with bar-spindle and DIN standard toolholder changer |
| ATE197688T1 (en) * | 1997-04-30 | 2000-12-15 | Techint Spa | MACHINE TOOL FOR MAKING HOLES IN PARTS DESIGNED FOR FIBERGLASS EXTRUSION |
| US6785943B2 (en) | 1998-09-04 | 2004-09-07 | Hardinge, Inc. | Indexing tool turret |
| US6398468B1 (en) | 2001-01-19 | 2002-06-04 | Bayer Machine Tech Llc | Machine tool quill spindle |
| DE10144678A1 (en) * | 2001-09-11 | 2003-04-03 | Emag Maschfab Gmbh | Milling and drilling center |
| KR100418661B1 (en) * | 2003-07-28 | 2004-02-14 | 주식회사 이원 | Position sensor of the draw-bar unit |
| CN103358185A (en) * | 2013-06-07 | 2013-10-23 | 杭州大天数控机床有限公司 | High-rigidity large-torque vertical machining center |
| KR101385728B1 (en) * | 2013-10-29 | 2014-04-17 | (주)한터테크놀러지 | The equipment for a spindle motor |
| CZ305496B6 (en) * | 2014-08-08 | 2015-10-29 | České vysoké učení technické v Praze, Fakulta strojní, Ústav výrobních strojů a zařízení | Compact driving unit with balancing vertical linear moving axes of machine tools |
| US9827640B2 (en) | 2015-06-18 | 2017-11-28 | Jorge Uriarte | Apparatus and a system for automatic tool change by threading engagement for a CNC milling machine |
| JP6735186B2 (en) * | 2016-08-29 | 2020-08-05 | オークマ株式会社 | Robots for machine tools and machine tools |
| JP6412185B2 (en) * | 2017-03-02 | 2018-10-24 | ファナック株式会社 | Machine tool system |
| CN108213527A (en) * | 2017-12-27 | 2018-06-29 | 苏州圣亚精密机械有限公司 | A kind of CNC milling machine |
| US11273296B2 (en) | 2019-10-15 | 2022-03-15 | Jorge Uriarte | Tattoo machine |
| DE102022201866A1 (en) | 2022-02-23 | 2023-08-24 | Robert Bosch Gesellschaft mit beschränkter Haftung | Winding device for producing windings in electrical machines |
| CN116037997B (en) * | 2023-03-28 | 2023-08-01 | 江苏钜瀚机械装备有限公司 | Milling device for metal parts |
| CN117359333A (en) * | 2023-12-07 | 2024-01-09 | 山东豪迈数控机床有限公司 | Revolving stage multichannel structure and numerical control processing equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE358340C (en) * | 1921-02-02 | 1922-09-12 | Gustav Wagner Fa | Device for the automatic control of the switching of machine tools |
| US2811877A (en) * | 1955-02-07 | 1957-11-05 | Aro Equipment Corp | Pneumatic drill construction |
| DE1300417B (en) * | 1959-09-24 | 1969-07-31 | Froriep Gmbh Maschf | Boring mill or the like with a hollow drilling spindle slidably mounted in the main spindle |
| US3191260A (en) * | 1961-07-27 | 1965-06-29 | William H Jorgensen | Machine tool turret having multiple tools |
| DE1247809B (en) * | 1961-11-02 | 1967-08-17 | Hans Deckel Dr Ing | Clamping device |
| DE1752833C3 (en) * | 1967-07-29 | 1982-03-04 | Ing. C. Olivetti & C., S.p.A., 10015 Ivrea, Torino | Locking device for the tools in the tool magazine of a machine tool |
| SE357691B (en) * | 1968-03-07 | 1973-07-09 | Makino Milling Machine | |
| FR2177211A5 (en) * | 1972-03-20 | 1973-11-02 | Cincinnati Milacron Inc | |
| US3893371A (en) * | 1972-03-27 | 1975-07-08 | Houdaille Industries Inc | Method and means for operating a spindle drive in a machine tool |
| US3797956A (en) * | 1972-12-15 | 1974-03-19 | J Bayer | Machine tool holder and driving means |
| US4008646A (en) * | 1974-08-30 | 1977-02-22 | Textron, Inc. | Machine tools |
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| US3999769A (en) * | 1975-02-24 | 1976-12-28 | Bayer Jack L | Tool holder for machine tools |
| DE2719114A1 (en) * | 1977-04-29 | 1978-11-16 | Baublys Mikas | Machine tool with tool change magazine - has tool holders with clamping bosses fitting in spring pull rod slot |
| DE2945770C2 (en) * | 1979-11-13 | 1986-10-30 | K. Eugen Ing.(grad.) 7000 Stuttgart Sigloch | Machining center |
| JPS60172B2 (en) * | 1981-12-21 | 1985-01-07 | 東芝機械株式会社 | Main spindle structure of vertical lathe |
| US4443929A (en) * | 1982-03-15 | 1984-04-24 | Bayer Jack L | Machining center |
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| US4640653A (en) * | 1984-07-30 | 1987-02-03 | Schartzman Everett H | Integral spring flexure for use with high speed rotating shafts |
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| DE3629453A1 (en) * | 1986-08-29 | 1988-03-10 | Forkardt Paul Gmbh | ELECTROMECHANICAL DEVICE FOR GENERATING AN AXIAL FORCE FOR THE OPERATION OF TENSIONERS |
| IT1197198B (en) * | 1986-09-10 | 1988-11-30 | Mandelli Spa | MECHANICAL PROCESSING CENTER OR MACHINE TOOL WITH PERFECTED ASSEMBLY AND TRANSLATION MEANS OF THE SPINDLE HOLDER HEAD |
| DE3714562A1 (en) * | 1987-04-30 | 1988-11-10 | Deckel Ag Friedrich | TOOL SPINDLE ARRANGEMENT WITH AN ELECTRIC DRIVE MOTOR |
| JP2557915B2 (en) * | 1987-11-20 | 1996-11-27 | 東芝機械株式会社 | Spindle drive |
| US5020968A (en) * | 1988-04-15 | 1991-06-04 | Ishikawajima-Harima Heavy Industries Co., Ltd. | System for controlling the rotating speed of a pneumatically driven spindle |
| US4997324A (en) * | 1988-04-21 | 1991-03-05 | Toshiba Kikai Kabushiki Kaisha | Spindle structure for machine tool |
| US4919575A (en) * | 1988-05-20 | 1990-04-24 | Toyoda Koki Kabushiki Kaisha | Apparatus for compensating for the thermal displacement of the main spindle of a machine tool |
-
1992
- 1992-07-24 US US07/920,125 patent/US5242360A/en not_active Expired - Fee Related
-
1993
- 1993-07-22 JP JP6504679A patent/JPH08501986A/en active Pending
- 1993-07-22 DE DE69323748T patent/DE69323748T2/en not_active Expired - Fee Related
- 1993-07-22 WO PCT/US1993/006881 patent/WO1994002283A1/en active IP Right Grant
- 1993-07-22 EP EP93918303A patent/EP0651686B1/en not_active Expired - Lifetime
- 1993-07-22 AU AU47800/93A patent/AU4780093A/en not_active Abandoned
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