US3886846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for testing accuracy of machine tool control programs
Assignee: Individual
•
Filing: 1971-03-08
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Granted: 1975-06-03
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Expires: 1991-03-08
Abstract
Abstract The accuracy of computer control programs by which machine tools are made to remove material from a metal workpiece to produce a piece part is tested. The test includes the steps of forming a sample block whose size and shape need not conform to those of the workpiece but which is more readily formed than the workpiece and securing the part to the machine and then causing the machine to be controlled by the program under test. The program having cut away more than a desired amount, the cast plastic workpiece is treated to add an excess of material at the region improperly cut away and the program pertaining to that region is rerun.
Inventors
- 👤 Roger E Bodine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:07
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/406; B; B23; B23Q; B23Q33/00; G05B2219/00; G05B2219/30; G05B2219/35; G05B2219/35352; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303752; Y10T409/303808; Y10T409/303864
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
The method of testing the accuracy of a control program by which a cutting machine is to cut a workpiece secured to the machine to selected size and shape which method comprises the steps of: creating a block of material more easily worked than the material from which the workpiece is to be cut and which has a size greater than said selected size by casting the block of thermo setting plastic; securing said block to the cutting machine in the position the workpiece is to occupy when secured to the machine; causing the machine to cut said block in accordance with the control program; causing the piece formed by cutting the block to be compared with a standard whereby errors in the shape of said piece are detected; adding epoxy adhesive in putty form to areas of said block following cutting of the block by said machine under the control of said program; altering the program; and causing the block, after hardening of the putty, to be recut by said machine in accordance with the modified control program.
Claim 2
Independent Claim
179 words
The method of testing the accuracy of a control program by which a cutting machine is to cut a workpiece secured to the machine to selected size and shape which method comprises the steps of: creating a block of material more easily worked than the material from which the workpiece is to be cut and which has a size greater than said selected size by casting the block of thermo setting plastic; securing said block to the cutting machine in the position the workpiece is to occupy when secured to the machine; causing the machine to cut said block in accordance with the control program; causing the piece formed by cutting the block to be compared with a standard whereby errors in the shape of said piece are detected; adding epoxy adhesive in putty form to areas of said block following cutting of the block by said machine under the control of said program; altering the program; and causing the block, after hardening of the putty, to be recut by said machine in accordance with the modified control program.
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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |