Patent US4356609A successfully refreshed from Google Patents.
US4356609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spindle keylock
Assignee: Kearney and Trecker Corp
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Filing: 1980-12-12
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Granted: 1982-11-02
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Expires: 2000-12-12
Abstract
Abstract A spindle keylock for stopping and locking the spindle of a machine tool at a predetermined angular orientation to align the machine tool spindle key with the toolholder key to facilitate tool exchange includes a collar fastened about the spindle for co-joint rotation therewith. The collar has a helically cammed exterior surface into which an axially extending slot or channel is inscribed. A cam follower, pivotally mounted to the machine tool spindlehead so as to lie within a plane passing through the spindle axis which is at a predetermined angular orientation with respect to a reference plane passing through the spindle axis in alignment with the spindle key, is rotatable about an axis perpendicular to the axis of the spindle for engaging with the cammed collar surface. When the cam follower is urged by a solenoid or an air cylinder against the cammed collar surface, the cam follower follows the cammed collar surface until the cam follower engages the collar slot to stop and lock the spindle at the desired angular orientation.
Inventors
- 👤 Kenneth A. Wollermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:34
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q16/00; B23Q16/02; B23Q16/04; B23Q5/20; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5152; Y10T29/5165; Y10T409/00; Y10T409/30; Y10T409/309352; Y10T483/00; Y10T483/17; Y10T483/1733; Y10T483/1736; Y10T483/1743; Y10T483/1745
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
191 words
For use with a machine tool having a spindlehead into which a rotatably driven tool carrying a spindle is journaled, apparatus for stopping and locking the spindle at a predetermined angular orientation with respect to a fixed plane passing through the spindle axis in alignment with the spindle key comprising: a collar fastened about said spindle for co-joint rotation therewith, said collar having an exterior cammed surface in which is inscribed an axially extending slot; cam follower means pivotally mounted to the machine tool spindlehead and lying within a plane passing through the spindle axis which is at a predetermined angular orientation with respect to said fixed plane, said cam follower means being rotatable about an axis perpendicular to the axis of the spindle for following the cammed surface on said collar; and actuating means fastened to said spindlehead and coupled to said cam follower means for urging said cam follower means against the cammed surface of said collar so that said cam follower means will follow the cammed surface of said collar and engage the slot in said collar to stop and lock the spindle in the predetermined angular orientation.
Claim 2
Dependent Claim
191 words
For use with a machine tool having a spindlehead into which a rotatably driven tool carrying a spindle is journaled, apparatus for stopping and locking the spindle at a predetermined angular orientation with respect to a fixed plane passing through the spindle axis in alignment with the spindle key comprising: a collar fastened about said spindle for co-joint rotation therewith, said collar having an exterior cammed surface in which is inscribed an axially extending slot; cam follower means pivotally mounted to the machine tool spindlehead and lying within a plane passing through the spindle axis which is at a predetermined angular orientation with respect to said fixed plane, said cam follower means being rotatable about an axis perpendicular to the axis of the spindle for following the cammed surface on said collar; and actuating means fastened to said spindlehead and coupled to said cam follower means for urging said cam follower means against the cammed surface of said collar so that said cam follower means will follow the cammed surface of said collar and engage the slot in said collar to stop and lock the spindle in the predetermined angular orientation.
Claim 3
Dependent Claim
24 words
The invention according to claim 1 wherein said cam follower means comprises a key pinned to a block which is fastened to said spindlehead.
Claim 4
Dependent Claim
13 words
The invention according to claim 1 wherein said actuating means comprises a solenoid.
Claim 5
Dependent Claim
14 words
The invention according to claim 1 wherein said actuating means comprises an air cylinder.
Claim 6
Dependent Claim
16 words
The invention according to claim 1 wherein the cammed surface on said collar is helically cammed.
Claim 7
Dependent Claim
17 words
The invention according to claim 1 wherein said cammed collar is formed of a single unitary member.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-01 | 1986-05-03 | 1986-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-01 | 1990-05-03 | 1990-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-01 | 1994-05-03 | 1994-11-02 | $7700.00 | Window Closed / Lapsed |