US4602874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support of a machine tool spindle with cooling device in a headstock
Assignee: Werkzeugmaschinenfabrik Adolf Waldrich Cobgurg GmbH and Co
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Filing: 1985-11-04
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Granted: 1986-07-29
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Expires: 2005-11-04
Abstract
Abstract In a support for a machine tool spindle (1) adapted for use with a cooling device there are provided feed and discharge channels (12, 13) for a fluidic cooling system in the spindle (1). These channels are connected to cooling grooves (14), which at least in the region of the inner bearing rings (2a) are arranged on the spindle head (1a), are worked into the spindle outer surface (1b) extending in a peripheral direction or helically and are open toward the inner bearing rings (2a).
Inventors
- 👤 Heinz Neugebauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:26
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/12; B23Q11/126; B23Q11/127; B23Q1/00; B23Q1/70; F; F16; F16C; F16C19/00; F16C19/54; F16C19/541; F16C37/00; F16C37/007; F16C19/02; F16C19/14; F16C19/16; F16C19/163; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/309352
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
105 words
In a support for a machine tool spindle adapted for use with a cooling device in a headstock, in which a fluidic cooling medium is fed through feed and discharge channels extending parallel with respect to a spindle axis to inner bearing rings of plural spindle bearings, the improvement comprising wherein said feed and discharge channels are provided in said spindle and are connected to cooling grooves, which at least in the area of said inner bearing rings, are arranged on an outer surface of said spindle head and extend in one of a peripheral direction and helically, and open toward said inner bearing rings.
Claim 2
Dependent Claim
105 words
In a support for a machine tool spindle adapted for use with a cooling device in a headstock, in which a fluidic cooling medium is fed through feed and discharge channels extending parallel with respect to a spindle axis to inner bearing rings of plural spindle bearings, the improvement comprising wherein said feed and discharge channels are provided in said spindle and are connected to cooling grooves, which at least in the area of said inner bearing rings, are arranged on an outer surface of said spindle head and extend in one of a peripheral direction and helically, and open toward said inner bearing rings.
Claim 3
Dependent Claim
28 words
The support according to claim 1, wherein said cooling grooves extend in said peripheral direction and are connected among one another through several connecting grooves which extend axially.
Claim 4
Dependent Claim
23 words
The support according to claim 2, wherein said connecting grooves are arranged between adjacent cooling grooves alternately offset at 180° to one another.
Claim 5
Dependent Claim
15 words
The support according to claim 1, wherein said cooling grooves have a rectangular cross section.
Claim 6
Dependent Claim
42 words
The support according to claim 1, wherein said feed channel terminates at an axial end face on said spindle head adjacent an endmost cooling groove and said discharge channel is connected to said cooling grooves most remote from said axial end face.
Claim 7
Dependent Claim
33 words
The support according to claim 1, wherein a thin-wall sleeve of a good heat-conducting material is provided between said inner rings and said spindle outer surface in the region of said cooling grooves.
Claim 8
Dependent Claim
59 words
The support according to claim 1, wherein in the region of said cooling grooves between adjacent inner rings and other parts which rotate with said spindle there are provided gauge rings which have annular grooves in axially facing surfaces thereon for receiving gasket rings which mate with said inner bearing rings and the parts which rotate with said spindle.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-28 | 1990-01-27 | 1990-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-28 | 1994-01-27 | 1994-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-28 | 1998-01-27 | 1998-07-29 | $7700.00 | Window Closed / Lapsed |