US3842236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process to control the movement of a workpiece with respect to a beam of a stock processing machine operating by means of controllable power irradiation
Assignee: Messer Griesheim GmbH
•
Filing: 1973-01-18
•
Granted: 1974-10-15
•
Expires: 1993-01-18
Abstract
Abstract The invention relates to apparatus and method for controlling the machining or processing of a workpiece by means of a controllable beam of radiant energy which may be a charge carrier beam, an electron beam, a laser beam, or the like. The invention is directed to apparatus and method for the control of the movement of a workpiece with respect to the machining beam of radiant energy. During movement of the workpiece, its instantaneous position is compared with a programmed position and the deviation between the instantaneous position and the programmed position are compensated for by adjustment of the beam whenever the inertia of the workpiece would prevent movement of the workpiece to eliminate the deviation. As a result, the beam becomes an inertia-free controllable tool by means of which controlled displacement cycles of the beam with very high speeds can be achieved. As a result, it is possible to compensate by control of the machining beam of radiant energy for the shaking motions of the workpiece carrier which are transmitted to the workpiece.
Inventors
- 👤 Walter A Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:28
CPC Classifications
B; B23; B23K; B23K15/00; B23K15/0013; B23K15/002; G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/188; H; H01; H01J; H01J37/00; H01J37/30; H01J37/304; H01J37/3045; H10; H10P; H10P72/00; H10P72/50; G05B2219/00; G05B2219/30; G05B2219/42; G05B2219/42251; G05B2219/43; G05B2219/43147
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
202 words
A method for performing work on a workpiece by utilizing a controllable beam of radiant energy comprising the steps of supplying electrical signals which continuously identify a desired position for the workpiece at any given moment during a machining cycle from working track parameters stored in information stoRage means, generating electrical signals which characterize the actual position of the workpiece at any given moment during said machining cycle, said signals forming the output of position sensor means, continuously comparing said electrical signals identifying said actual position of said workpiece at any given moment during said machining cycle with said desired position in an electrical comparator to develop a difference signal representing any difference between said actual position at that given moment and said desired position, selectively adjusting the point of incidence of the beam of radiant energy on the workpiece relative to the workpiece responsive to said difference signal such that said electron beam is deflected to impinge upon the desired position on said workpiece, and moving said workpiece to the desired position represented by said desired position identifying signals to obviate any difference between the actual and desired workpiece positions thereby returning said beam of radiant energy to an underflected position.
Claim 2
Independent Claim
202 words
A method for performing work on a workpiece by utilizing a controllable beam of radiant energy comprising the steps of supplying electrical signals which continuously identify a desired position for the workpiece at any given moment during a machining cycle from working track parameters stored in information stoRage means, generating electrical signals which characterize the actual position of the workpiece at any given moment during said machining cycle, said signals forming the output of position sensor means, continuously comparing said electrical signals identifying said actual position of said workpiece at any given moment during said machining cycle with said desired position in an electrical comparator to develop a difference signal representing any difference between said actual position at that given moment and said desired position, selectively adjusting the point of incidence of the beam of radiant energy on the workpiece relative to the workpiece responsive to said difference signal such that said electron beam is deflected to impinge upon the desired position on said workpiece, and moving said workpiece to the desired position represented by said desired position identifying signals to obviate any difference between the actual and desired workpiece positions thereby returning said beam of radiant energy to an underflected position.
Claim 3
Dependent Claim
39 words
A method as in claim 1 wherein said electron beam is selectively deflected by orthogonal axis deflection means, and wherein said beam adjusting step includes means for exciting said orthogonal axis deflection means responsive to said positional difference signal.
Claim 4
Dependent Claim
186 words
Apparatus for performing work on a workpiece utilizing a controllable beam of radiant energy, comprising storage means for supplying electrical signals representing a desired position of the workpiece at any given moment during a machining cycle, sensor means for determining the actual instantaneous position of the workpiece at any given moment during said machining cycle, comparator means coupled with said actual position reporting sensor means and said desired position signaling storage means for comparing the actual position of the workpiece at any given moment during said machining cycle with the desired position therefor and for developing a difference signal responsive to any deviation between the actual position of the workpiece at that given moment from said desired position, deflection means responsive to the difference signal output of said comparator means for adjusting the point of incidence of the beam of radiant energy on the workpiece to correspond to the desired position therefor, and workpiece positioning means responsive to the difference signal output of said comparator means for moving said workpiece to the desired position therefor thereby returning said beam of radiant energy to an undeflected position.
Claim 5
Dependent Claim
186 words
Apparatus for performing work on a workpiece utilizing a controllable beam of radiant energy, comprising storage means for supplying electrical signals representing a desired position of the workpiece at any given moment during a machining cycle, sensor means for determining the actual instantaneous position of the workpiece at any given moment during said machining cycle, comparator means coupled with said actual position reporting sensor means and said desired position signaling storage means for comparing the actual position of the workpiece at any given moment during said machining cycle with the desired position therefor and for developing a difference signal responsive to any deviation between the actual position of the workpiece at that given moment from said desired position, deflection means responsive to the difference signal output of said comparator means for adjusting the point of incidence of the beam of radiant energy on the workpiece to correspond to the desired position therefor, and workpiece positioning means responsive to the difference signal output of said comparator means for moving said workpiece to the desired position therefor thereby returning said beam of radiant energy to an undeflected position.
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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |