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Patent US4561815A successfully refreshed from Google Patents.
US4561815A
Expired / Lapsed
US
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Machine tool adjustment
Assignee: SCHRADER MACHINE & TOOL Inc 6422 HANOVER RD HANOVER MI 49241 A MI CORP
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Filing: 1984-04-25
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Granted: 1985-12-31
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Expires: 2004-04-25
Abstract
Abstract The invention pertains to an adjustment for machine tool components, such as a head or slide, wherein minute dimensional variations are achieved by the utilization of a wedge acting against a spring biasing force. The wedge is longitudinally displaced by incremental motor means and the biasing force opposing the wedge actuated forces are produced by compression spring elements.
Inventors
- 👤 David J. Trevarrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:13
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/262; B23Q1/44; B23Q1/56; B23Q1/60; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30868; Y10T409/309128
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
198 words
An adjustable slide for a machine tool wherein the machine tool includes a frame, and a slide movably mounted upon the frame, the improvement comprising, in combination, a first wedge surface defined on the frame, a second wedge surface defined on the slide in opposed spaced relationship to said first wedge surface, a wedge having an axis interposed between said wedge surfaces, said wedge including a first reaction surface in opposed relation to said first wedge surface and a second reaction surface in opposed relation to said second wedge surface, at least one of said reaction surfaces and its opposed wedge surface being obliquely related to said wedge axis, anti-friction bearings interposed between said opposed wedge and reaction surfaces, a threaded shaft parallel to said wedge axis received within a threaded bore defined upon said wedge, an actuator operatively connected to said threaded shaft for rotating said shaft and adjustably positioning said wedge between said wedge surfaces to adjust the spacing between the slide and the frame, tension rods interposed between the slide and frame, and compression springs mounted upon said tension rods biasing the slide in the direction tending to decrease the spacing between said wedge surfaces.
Claim 2
Dependent Claim
198 words
An adjustable slide for a machine tool wherein the machine tool includes a frame, and a slide movably mounted upon the frame, the improvement comprising, in combination, a first wedge surface defined on the frame, a second wedge surface defined on the slide in opposed spaced relationship to said first wedge surface, a wedge having an axis interposed between said wedge surfaces, said wedge including a first reaction surface in opposed relation to said first wedge surface and a second reaction surface in opposed relation to said second wedge surface, at least one of said reaction surfaces and its opposed wedge surface being obliquely related to said wedge axis, anti-friction bearings interposed between said opposed wedge and reaction surfaces, a threaded shaft parallel to said wedge axis received within a threaded bore defined upon said wedge, an actuator operatively connected to said threaded shaft for rotating said shaft and adjustably positioning said wedge between said wedge surfaces to adjust the spacing between the slide and the frame, tension rods interposed between the slide and frame, and compression springs mounted upon said tension rods biasing the slide in the direction tending to decrease the spacing between said wedge surfaces.
Claim 3
Dependent Claim
20 words
In an adjustable slide for a machine tool as in claim 1, said anti-friction bearings comprising a plurality of balls.
Claim 4
Dependent Claim
19 words
In an adjustable slide for a machine tool as in claim 1, said actuator comprising an electric stepping motor.
Claim 5
Dependent Claim
17 words
In an adjustable slide for a machine tool as in claim 1, said springs comprising Belleville springs.
Claim 6
Dependent Claim
68 words
In an adjustable slide for a machine tool as in claim 1, said tension rods comprising at least one threaded rod fixed relative to the frame extending through an opening defined in the slide in a direction substantially perpendicular to the axis and general plane of said wedge, a nut threaded upon said rod spaced from said slide, said compression springs interposed between said nut and the slide.
Claim 7
Dependent Claim
20 words
In an adjustable slide for a machine tool as in claim 5, said springs comprising a plurality of Belleville springs.
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) | 1988-12-30 | 1989-07-01 | 1989-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-30 | 1993-07-01 | 1993-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-30 | 1997-07-01 | 1997-12-31 | $7700.00 | Window Closed / Lapsed |