Patent US3630631A successfully refreshed from Google Patents.
US3630631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston ring machine feed compensator
Assignee: B AND K TOOL AND DIE CORP
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Filing: 1969-04-10
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Granted: 1971-12-28
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Expires: 1989-04-10
Abstract
Abstract Apparatus for machining stacked workpieces wherein a stack is presented to a work station where individual workpieces are machined. The workpieces are yieldably mounted on a carriage which sequentially moves toward and away from the work station. Yieldable means operates to eject one of the workpieces on the end of the stack when the carriage is moved away from the work station. Fluid motor indexing means may be provided to control the yieldable means. Spherical bearing means may be utilized for transmitting force between the yieldable means and the stack of workpieces. A gauge may suitably be provided to regulate the movement of the members which clamp the stack at the work station.
Inventors
- 👤 Julius J Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:52
CPC Classifications
B; B23; B23B; B23B5/00; Y; Y10; Y10T; Y10T408/00; Y10T408/29; Y10T408/39; Y10T408/47; Y10T408/482; Y10T82/00; Y10T82/25
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
218 words
A machine tool for successiVely machining workpieces comprising: a frame having a work station thereon; machining means at said work station; a first clamp member mounted on said frame; carriage means supported by said frame for movement toward and away from said first clamp member; driving means for cyclically driving said carriage means first axially toward and then axially away from said first clamp member; a second clamp member adapted to cooperate with said first clamp member to clamp a stack of workpieces therebetween; means mounting said second clamp on said carriage means for movement with and relative thereto; indexing means connected with said carriage means for incrementally indexing said mounting means toward said first clamp member; and yieldable means reacting between said second clamp member and said carriage means for taking up a degree of movement of said carriage means to disable further movement of said second clamp member toward said first clamp member, and for moving said second clamp member toward said first clamp member a distance at least as great as the axial thickness of one of said workpieces when said carriage means and said first clamp member are moved apart to axially discharge a workpiece at one end of said stack and permit it to be moved from a position between said clamp members.
Claim 2
Dependent Claim
218 words
A machine tool for successiVely machining workpieces comprising: a frame having a work station thereon; machining means at said work station; a first clamp member mounted on said frame; carriage means supported by said frame for movement toward and away from said first clamp member; driving means for cyclically driving said carriage means first axially toward and then axially away from said first clamp member; a second clamp member adapted to cooperate with said first clamp member to clamp a stack of workpieces therebetween; means mounting said second clamp on said carriage means for movement with and relative thereto; indexing means connected with said carriage means for incrementally indexing said mounting means toward said first clamp member; and yieldable means reacting between said second clamp member and said carriage means for taking up a degree of movement of said carriage means to disable further movement of said second clamp member toward said first clamp member, and for moving said second clamp member toward said first clamp member a distance at least as great as the axial thickness of one of said workpieces when said carriage means and said first clamp member are moved apart to axially discharge a workpiece at one end of said stack and permit it to be moved from a position between said clamp members.
Claim 3
Dependent Claim
62 words
A machine tool as set forth in claim 1 wherein said indexing means includes fluid motor means operated by said driving means to index said mounting means toward said first clamp means; and means operable to permit said motor means to move said mounting means toward said first clamp at a faster rate than said driving means alone operates said motor means.
Claim 4
Dependent Claim
61 words
A machine tool as set forth in claim 1 wherein said yieldable means comprises energy storing yieldable means; said indexing means being operated by said driving means to index said mounting means toward said first clamp means while said stack of workpieces is clamped between said clamp members to transfer energy to said energy storing yieldable means and store it therein.
Claim 5
Dependent Claim
39 words
A machine tool as set forth in claim 3 wherein said indexing means includes power-operated means for moving said mounting means away from said first clamp means after said stack of workpieces has been machined by said machining means.
Claim 6
Dependent Claim
38 words
A machine tool as set forth in claim 3 wherein said indexing means includes fluid motor means, cam means, and cam follower means operably connected with said driving means to permit fluid to flow to said motor means.
Claim 7
Dependent Claim
218 words
A machine tool comprising: a frame having a work station thereon; a first clamp member mounted on said frame; carriage means supported by said frame for sequential movement axially toward and away from said first clamp member; driving means for cyclically driving said carriage means first axially toward and then axially away from said clamp member; a second clamp member adapted to cooperate with said first clamp member to clamp a stack of workpieces therebetween; energy storing yieldable means mounting said second clamp on said carriage means for movement with and relative to the latter, said energy storing yieldable means reacting between said second clamp member and said carriage means for taking up a degree of movement of said carriage means toward said first clamp member to disable further movement of said second clamp member toward said first clamp member, and for moving said second clamp member axially toward said first clamp member when said carriage means and said second clamp member are moved apart to axially discharge a workpiece at one end of said stack and permit it to be moved from between said clamp members; and indexing means operated by said driving means and connected with said carriage means for moving said yieldable means relative to said carriage means to store energy in said yieldable means.
Claim 8
Dependent Claim
218 words
A machine tool comprising: a frame having a work station thereon; a first clamp member mounted on said frame; carriage means supported by said frame for sequential movement axially toward and away from said first clamp member; driving means for cyclically driving said carriage means first axially toward and then axially away from said clamp member; a second clamp member adapted to cooperate with said first clamp member to clamp a stack of workpieces therebetween; energy storing yieldable means mounting said second clamp on said carriage means for movement with and relative to the latter, said energy storing yieldable means reacting between said second clamp member and said carriage means for taking up a degree of movement of said carriage means toward said first clamp member to disable further movement of said second clamp member toward said first clamp member, and for moving said second clamp member axially toward said first clamp member when said carriage means and said second clamp member are moved apart to axially discharge a workpiece at one end of said stack and permit it to be moved from between said clamp members; and indexing means operated by said driving means and connected with said carriage means for moving said yieldable means relative to said carriage means to store energy in said yieldable means.
Claim 9
Dependent Claim
47 words
A machine tool as set forth in claim 6 wherein said indexing means is operable to move sAid carriage means relative to said yieldable means after said stack is clamped between said clamp members to increase the pressure exerted on said second clamp by said yieldable means.
Claim 10
Dependent Claim
37 words
A machine tool as set forth in claim 6 wherein said yieldable means moves said second clamp means toward said first clamp means a distance at least as great as the thickness of one of said workpieces.
Claim 11
Dependent Claim
32 words
A machine tool as set forth in claim 8 wherein said yieldable means comprises removably mounted gauge means for regulating the amount of movement between said carriage means and said second clamp.
Claim 12
Dependent Claim
30 words
A machine tool as set forth in claim 8 wherein said yieldable means includes spherical bearing means for transmitting the force between said yieldable means and said second clamp means.
Claim 13
Dependent Claim
140 words
Apparatus for successively presenting each workpiece of a stack of workpieces to tool means for machining said workpieces at a work station comprising: clamp means for clamping said stack while a workpiece is being machined; driving means for cyclically driving said clamp means toward and away from said work station; carriage means sequentially movable toward and away from said work station; energy storing yieldable means connecting said clamp means and said carriage means; indexing means for moving said energy storing yieldable means relative to said carriage means to store energy in said energy storing yieldable means; said energy storing yieldable means being operable in response to movement of said carriage means away from said work station to axially discharge a workpiece at one end of said stack and permit it to be moved from a position between said clamp means.
Claim 14
Dependent Claim
140 words
Apparatus for successively presenting each workpiece of a stack of workpieces to tool means for machining said workpieces at a work station comprising: clamp means for clamping said stack while a workpiece is being machined; driving means for cyclically driving said clamp means toward and away from said work station; carriage means sequentially movable toward and away from said work station; energy storing yieldable means connecting said clamp means and said carriage means; indexing means for moving said energy storing yieldable means relative to said carriage means to store energy in said energy storing yieldable means; said energy storing yieldable means being operable in response to movement of said carriage means away from said work station to axially discharge a workpiece at one end of said stack and permit it to be moved from a position between said clamp means.
Claim 15
Dependent Claim
36 words
Apparatus as set forth in claim 11 wherein said yieldable means comprises: gauge means for regulating the amount of movement of said clamp means; and spring means reacting between said clamp means and said carriage means.
Claim 16
Dependent Claim
28 words
Apparatus as set forth in claim 12 wherein said spring means is mounted in the bore of a receiver member which is slidably mounted on said carriage means.
Claim 17
Dependent Claim
28 words
Apparatus as set forth in claim 13 wherein said yieldable means further includes spherical bearing means connected with said receiver member for transmitting force to said clamp means.
Claim 18
Dependent Claim
31 words
A machine tool as set forth in claim 11 wherein said indexing means comprises fluid motor means operated by said driving means for moving said carriage means toward said work station.
Claim 19
Dependent Claim
31 words
A machine tool as set forth in claim 15 wherein said motor means operates to move said carriage means away from said work station after the stack of workpieces is machined.
Claim 20
Dependent Claim
31 words
A machine tool as set forth in claim 11 wherein said yieldable means includes removably connected gauge means for controlling the relative movement of said carriage means and said yieldable means.
Claim 21
Independent Claim
205 words
A method of successively presenting each workpiece of a stack of workpieces to tool means for machining said workpieces, including a first clamp member and carriage means mounted on a frame, a second clamp member, a yieldable means mounting said second clamp on said carriage means comprising the steps of: sequentially moving said carriage means and said second clamp member axially toward and away from said first clamp member to alternately clamp and unclamp said stack of workpieces between said clamp member; taking up a degree of movement of said carriage means toward said first clamp member to disable further movement of said second clamp member toward said first clamp member; moving said carriage means relative to said yieldable means while said stack is clamped between said clamp members for transferring energy to said yieldable means and storing it therein; moving said second clamp member, by releasing the stored energy in said yieldable means, toward said first clamp member a distance at least as great as the axial thickness of one of said workpieces when said clamp members are moved apart to axially discharge a workpiece At one end of said stack and permit it to be moved from a position between said clamp members.
Claim 22
Independent Claim
205 words
A method of successively presenting each workpiece of a stack of workpieces to tool means for machining said workpieces, including a first clamp member and carriage means mounted on a frame, a second clamp member, a yieldable means mounting said second clamp on said carriage means comprising the steps of: sequentially moving said carriage means and said second clamp member axially toward and away from said first clamp member to alternately clamp and unclamp said stack of workpieces between said clamp member; taking up a degree of movement of said carriage means toward said first clamp member to disable further movement of said second clamp member toward said first clamp member; moving said carriage means relative to said yieldable means while said stack is clamped between said clamp members for transferring energy to said yieldable means and storing it therein; moving said second clamp member, by releasing the stored energy in said yieldable means, toward said first clamp member a distance at least as great as the axial thickness of one of said workpieces when said clamp members are moved apart to axially discharge a workpiece At one end of said stack and permit it to be moved from a position between said clamp members.
Claim 23
Dependent Claim
176 words
Apparatus for successively presenting each workpiece of a stack of workpieces to tool means for machining said workpieces at a work station comprising: clamp means for clamping said stack while such a workpiece is being machined; carriage means sequentially movable toward and away from said work station; yieldable means connecting said clamp means and said carriage means; driving means for cyclically driving said carriage means toward and away from said work station; and indexing means for relatively moving said yieldable means and said carriage means, including: fluid drivable motor means adapted to be connected in fluid circuit relation with a source of fluid under pressure; means responsive to operation of said driving means for intermittently supplying said fluid under pressure to said motor means to intermittently drive said motor means and intermittently index said carriage in timed relation with movement of said carriage means, and for then preventing the supply of fluid to, and simultaneously preventing the escape of fluid from, said motor means to positively brake said motor means and prevent movement of said carriage.
Claim 24
Dependent Claim
176 words
Apparatus for successively presenting each workpiece of a stack of workpieces to tool means for machining said workpieces at a work station comprising: clamp means for clamping said stack while such a workpiece is being machined; carriage means sequentially movable toward and away from said work station; yieldable means connecting said clamp means and said carriage means; driving means for cyclically driving said carriage means toward and away from said work station; and indexing means for relatively moving said yieldable means and said carriage means, including: fluid drivable motor means adapted to be connected in fluid circuit relation with a source of fluid under pressure; means responsive to operation of said driving means for intermittently supplying said fluid under pressure to said motor means to intermittently drive said motor means and intermittently index said carriage in timed relation with movement of said carriage means, and for then preventing the supply of fluid to, and simultaneously preventing the escape of fluid from, said motor means to positively brake said motor means and prevent movement of said carriage.
References Cited (Backward Citations)
US3165011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |