US3663786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for electroerosive machining of metal
Assignee: Individual
•
Filing: 1966-04-27
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Granted: 1972-05-16
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Expires: 1986-04-27
Abstract
Abstract A tool for universal movement of a cutting member in a plane perpendicular to a predetermined direction of movement of the cutting member is disclosed. The tool is disclosed in conjunction with an abrasive electrode form having a shape which is the reverse image of an electrode to be produced thereby and which is constructed of abrasive particles held in a plastic matrix whereby an electrode may be abraded from electrode material on movement of the electrode form toward the electrode material in the predetermined direction. The structure for universally moving the electrode form cutting member in a plane perpendicular to the direction of movement of the cutting member includes relatively eccentric, and rotatable members positioned in two slides slidably mounted perpendicularly to each other.
Inventors
- 👤 Thomas J O'connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:38
CPC Classifications
B; B24; B24B; B24B35/00; B24B35/005; B23; B23H; B23H1/00; B23H1/04; B23H7/00; B23H7/26; B23H7/28; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T83/00; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/4812
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
218 words
A tool for electric discharge machining or the like comprising a base, means for rapidly and accurately securing the base on the ram of an electric discharge machine, rotary motor means secured to the base, first slide structure connected to the base and movable in a direction perpendicular to a ram to which the base is secured including fixed Guides secured to the base and a slide movable therealong, second slide structure secured to the first slide structure and movable in a direction perpendicular to the movement of the first slide structure including fixed guides secured to the first slide and a second slide movable along the second guides, relatively eccentric members positioned within the first and second slide structures and connected to the motor means for rotation thereby comprising a first cylindrical cam concentric with the motor means rotatable in a closely embracing opening in the first slide and a second cylindrical cam secured to the first cylindrical cam in a position eccentric to the motor means and rotatable in an opening in the second slide whereby the second slide structure is caused to move in all directions in a plane perpendicular to a ram to which the base is secured on rotation of the motor means, and electrode mounting means secured to the second slide structure.
Claim 2
Dependent Claim
218 words
A tool for electric discharge machining or the like comprising a base, means for rapidly and accurately securing the base on the ram of an electric discharge machine, rotary motor means secured to the base, first slide structure connected to the base and movable in a direction perpendicular to a ram to which the base is secured including fixed Guides secured to the base and a slide movable therealong, second slide structure secured to the first slide structure and movable in a direction perpendicular to the movement of the first slide structure including fixed guides secured to the first slide and a second slide movable along the second guides, relatively eccentric members positioned within the first and second slide structures and connected to the motor means for rotation thereby comprising a first cylindrical cam concentric with the motor means rotatable in a closely embracing opening in the first slide and a second cylindrical cam secured to the first cylindrical cam in a position eccentric to the motor means and rotatable in an opening in the second slide whereby the second slide structure is caused to move in all directions in a plane perpendicular to a ram to which the base is secured on rotation of the motor means, and electrode mounting means secured to the second slide structure.
Claim 3
Dependent Claim
48 words
Structure as set forth in claim 1 and further including means for adjusting the relative eccentricity between the relatively eccentric members to adjust the movement of the second slide structure in a plane perpendicular to the direction of movement of a ram to which the tool is secured.
Claim 4
Dependent Claim
109 words
A tool comprising a first slide slidable in one direction, a second slide mounted on the first slide and slidable in a direction perpendicular to the direction of movement of the first slide, a pair of separate cylindrical members positioned in the first and second slides and rotatable together, means for rotating the cylindrical member in the first slide about the axis thereof and means operable between the two cylindrical members to eccentrically secure the second cylindrical member to the first cylindrical member, means operably associated with the slides for moving the slides in one direction and means for securing an electrode or the like to the second slide.
Claim 5
Dependent Claim
109 words
A tool comprising a first slide slidable in one direction, a second slide mounted on the first slide and slidable in a direction perpendicular to the direction of movement of the first slide, a pair of separate cylindrical members positioned in the first and second slides and rotatable together, means for rotating the cylindrical member in the first slide about the axis thereof and means operable between the two cylindrical members to eccentrically secure the second cylindrical member to the first cylindrical member, means operably associated with the slides for moving the slides in one direction and means for securing an electrode or the like to the second slide.
Claim 6
Dependent Claim
45 words
Structure as set forth in claim 3, wherein the means for eccentrically securing the second cylindrical member to the first cylindrical member comprises a bolt extending into the first cylindrical member through the second cylindrical member eccentric to as least one of the cylindrical members.
Claim 7
Dependent Claim
35 words
Structure as set forth in claim 4, wherein the first slide is secured to a base and a dovetail member is provided on the base for rapidly and accurately securing the base to a ram.
Claim 8
Dependent Claim
19 words
Structure as set forth in claim 3 and further including an abrasive electrode form secured to the second slide.
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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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |