US3783719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine tool
Assignee: Warner and Swasey Co
•
Filing: 1972-08-15
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Granted: 1974-01-08
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Expires: 1992-08-15
Abstract
Abstract An improved control apparatus is utilized with a machine tool having side and end turrets. Each of the turrets is moveable along either one of two axes. This control apparatus is operable in response to command signals from a stored program or from manual data inputs to effect movement of either one of the turrets while the other turret remains parked or stationary. The control apparatus includes a single function generator and two discriminators or position error signal generators, each of which is selectably switched between one position servoloop associated with the side turret and one position servoloop associated with the end turret. Switching may be initiated either by command signals from a stored program or from manual data inputs.
Inventors
- 👤 D Gugliotta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:54
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/33; G05B19/37; G05B19/371; G05B19/414; G05B19/4144; G05B2219/00; G05B2219/30; G05B2219/36; G05B2219/36383; G05B2219/43; G05B2219/43007; G05B2219/49; G05B2219/49242; G05B2219/49282; G05B2219/50; G05B2219/50228; Y; Y10; Y10T; Y10T408/00; Y10T408/08; Y10T82/00; Y10T82/25; Y10T82/2502; Y10T82/2531; Y10T82/2533; Y10T82/2535
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
676 words
An apparatus comprising first tool support means for moving a first tool toward and away from a workpiece along a first axis and for moving the first tool toward and away from the workpiece along a second axis which extends transversely to said first axis, second tool support means for moving a second tool toward and away from the workpiece along a third axis and for moving the second tool toward and away from the workpiece along a fourth axis which extends transversely to said third axis, first and second motor means each of which is associated with one of said first and second axes and is operable to move said first tool support means along the associated one of said first and second axes, third and fourth motor means each of which is associated with one of said third and fourth axes and is operable to move said second tool support means along the associated one of third and fourth axes, control means for effecting movement of only one of said tool support means at a time and for preventing movement of the other tool support means during movement of the one tool support means, said control means including first feedback signal generator means for providing signals during movement of said first tool support means along said first axis under the influence of said first motor means, second feedback signal generator means for providing signals during movement of said first tool support means along said second axis under the influence of said second motor means, third feedback signal generator means for providing signals during movement of said second tool support means along said third axis under the influence of said third motor means, fourth feedback signal generator means for providing signals during movement of said second tool support means along said fourth axis under the influence of said fourth motor means, first means for providing command signals which are associated with said first axis durIng movement of said first tool support means and which are associated with said third axis during movement of said second tool support means, second means for providing command signals which are associated with said second axis during movement of said first tool support means and which are associated with said fourth axis during movement of said second tool support means, first error signal generator means for receiving signals from said first means for providing command signals, from said first feedback signal generator means, and from said third feedback signal generator means, for effecting operation of said first motor means as a function of the command signals from said first means and the signals from said first feedback signal generator means when said third and fourth means are in inactive conditions, and for effecting operation of said third motor means as a function of the command signals from said first means and the signals from said third feedback signal generator means when said first and second motor means are in inactive conditions, second error signal generator means for receiving signals from said second means for providing command signals, from said second feedback signal generator means, and from said fourth feedback signal generator means, for effecting operation of said second motor means as a function of the command signals from said second means and the signals from said second feedback signal generator means when said third and fourth motor means are in inactive conditions, and for effecting operation of said fourth motor means as a function of the command signals from said second means and the signals from said fourth feedback signal generator means when said first and second motor means are in inactive conditions, and means for rendering said first and second error signal generator means ineffective to operate either of said first and second motor means during operation of either of said third and fourth motor means and for rendering said first and second error signal generator means ineffective to operate either of said third and fourth motor means during operation of either of said first and second motor means.
Claim 2
Independent Claim
676 words
An apparatus comprising first tool support means for moving a first tool toward and away from a workpiece along a first axis and for moving the first tool toward and away from the workpiece along a second axis which extends transversely to said first axis, second tool support means for moving a second tool toward and away from the workpiece along a third axis and for moving the second tool toward and away from the workpiece along a fourth axis which extends transversely to said third axis, first and second motor means each of which is associated with one of said first and second axes and is operable to move said first tool support means along the associated one of said first and second axes, third and fourth motor means each of which is associated with one of said third and fourth axes and is operable to move said second tool support means along the associated one of third and fourth axes, control means for effecting movement of only one of said tool support means at a time and for preventing movement of the other tool support means during movement of the one tool support means, said control means including first feedback signal generator means for providing signals during movement of said first tool support means along said first axis under the influence of said first motor means, second feedback signal generator means for providing signals during movement of said first tool support means along said second axis under the influence of said second motor means, third feedback signal generator means for providing signals during movement of said second tool support means along said third axis under the influence of said third motor means, fourth feedback signal generator means for providing signals during movement of said second tool support means along said fourth axis under the influence of said fourth motor means, first means for providing command signals which are associated with said first axis durIng movement of said first tool support means and which are associated with said third axis during movement of said second tool support means, second means for providing command signals which are associated with said second axis during movement of said first tool support means and which are associated with said fourth axis during movement of said second tool support means, first error signal generator means for receiving signals from said first means for providing command signals, from said first feedback signal generator means, and from said third feedback signal generator means, for effecting operation of said first motor means as a function of the command signals from said first means and the signals from said first feedback signal generator means when said third and fourth means are in inactive conditions, and for effecting operation of said third motor means as a function of the command signals from said first means and the signals from said third feedback signal generator means when said first and second motor means are in inactive conditions, second error signal generator means for receiving signals from said second means for providing command signals, from said second feedback signal generator means, and from said fourth feedback signal generator means, for effecting operation of said second motor means as a function of the command signals from said second means and the signals from said second feedback signal generator means when said third and fourth motor means are in inactive conditions, and for effecting operation of said fourth motor means as a function of the command signals from said second means and the signals from said fourth feedback signal generator means when said first and second motor means are in inactive conditions, and means for rendering said first and second error signal generator means ineffective to operate either of said first and second motor means during operation of either of said third and fourth motor means and for rendering said first and second error signal generator means ineffective to operate either of said third and fourth motor means during operation of either of said first and second motor means.
Claim 3
Dependent Claim
243 words
An apparatus as set forth in claim 1 further including first brake means operable between an engaged condition holding said first tool support means against movement along said first axis and a disengaged condition enabling said first tool support means to be moved under the influence of said first motor means, second brake means operable between an engaged condition holding said first tool support means against movement along said second axis and a disengaged condition enabling said first tool support means to be moved under the influence of said second motor means, third brake means operable between an engaged condition holding said second tool support means against movement along said third axis and a disengaged condition enabling said second tool support means to be moved under the influence of said third motor means, and fourth brake means operable between an engaged condition holding said second tool support means against movement along said fourth axis and a disengaged condition enabling said second tool support means to be moved under the influence of said fourth motor means, said control means including means for effecting operation of said first and second brake means from the engaged condition to the disengaged condition only when said third and fourth brake means are in the engaged condition and for effecting operation of said third and fourth brake means from the engaged condition to the disengaged condition only when said first and second brake means are in the engaged condition.
Claim 4
Dependent Claim
136 words
An apparatus as set forth in claim 1 wherein said first and second means for providing command signals each include means for producing a cyclically repetitive command wave form and means for advancing and retarding the phase of said cyclically repetitive command wave form, each of said feedback signal generator means including means for producIng a cyclically repetitive feedback wave form and means for advancing and retarding the phase of said feedback wave form as a function of movement of the associated one of said tool support means along the associated one of said axes, each of said error signal generator means including means for generating an output signal which varies as a function of variations in the phase relationship between an associated one of said command wave forms and one of said feedback wave forms.
Claim 5
Dependent Claim
88 words
An apparatus as set forth in claim 1 further including circuit means for connecting said first motor means, first feedback signal generator means and first error signal generator means in a first servoloop and for connecting said third motor means, third feedback signal generator means and first error signal generator means in a second servoloop, said circuit means including switch means operable between a first condition opening said first servoloop and completing said second servoloop and a second condition opening said second servoloop and completing said first servoloop.
Claim 6
Dependent Claim
272 words
A machine tool comprising spindle means for rotating a workpiece about an axis of rotation, first tool support means for moving a first tool toward and away from said spindle means along a first axis and for moving the first tool toward and away from said axis of rotation along a second axis which extends transversely to said first axis, second tool support means for moving a second tool toward and away from spindle means along a third axis and for moving the second tool toward and away from said axis of rotation along a fourth axis which extends transversely to said third axis, first and second motor means each of which is associated with one of said first and second axes and is operable to move said first tool support means along the associated one of said first and second axes, third and fourth motor means each of which is associated with one of said third and fourth axes and is operable to move said second tool support means along the associated one of third and fourth axes, control means for effecting movement of only one of said tool support means at a time and for preventing movement of the other tool support means during movement of the one tool support means, said control means including switching means for maintaining said first and second motor means in an inactive condition at all times during operation of either of said third and fourth motor means and for maintaining said third and fourth motor means in an inactive condition at all times during operation of either of said first and second motor means.
Claim 7
Dependent Claim
272 words
A machine tool comprising spindle means for rotating a workpiece about an axis of rotation, first tool support means for moving a first tool toward and away from said spindle means along a first axis and for moving the first tool toward and away from said axis of rotation along a second axis which extends transversely to said first axis, second tool support means for moving a second tool toward and away from spindle means along a third axis and for moving the second tool toward and away from said axis of rotation along a fourth axis which extends transversely to said third axis, first and second motor means each of which is associated with one of said first and second axes and is operable to move said first tool support means along the associated one of said first and second axes, third and fourth motor means each of which is associated with one of said third and fourth axes and is operable to move said second tool support means along the associated one of third and fourth axes, control means for effecting movement of only one of said tool support means at a time and for preventing movement of the other tool support means during movement of the one tool support means, said control means including switching means for maintaining said first and second motor means in an inactive condition at all times during operation of either of said third and fourth motor means and for maintaining said third and fourth motor means in an inactive condition at all times during operation of either of said first and second motor means.
Claim 8
Dependent Claim
239 words
A machine tool as set forth in claim 5 wherein said control means further includes first and second error signal generators, first circuit means for interconnecting said first error signal generator, switch means, and first motor means to form a first servoloop, second circuit means for interconnecting said first error signal generator, switch means, and third motor means to form a second servoloop, third circuit means for interconnecting said second error signal generator, switch means, and second motor means to form a third servoloop, and fourth circuit means for interconnecting said second signal generator, switch means, and third motor means to form a fourth servoloop, said switch means being operable between first and second conditions, said switch means being operable in said first condition to complete said first and third servoloops and to open said second and fourth servoloops to enable said first and second motor means to be activated to move said first tool support means relative to said first and second axes and to maintain said third and fourth motor means in an inactive condition, said switch means being operable in said second condition to complete said second and fourth servoloops and to open said first and third servoloops to enable said third and fourth motor means to be activated to move said second tool support means relative to said third and fourth axes and to maintain said first and secOnd motor means in an inactive condition.
Claim 9
Dependent Claim
69 words
A machine tool as set forth in claim 6 further including first and second brake means for holding first tool support means against movement along said first and second axes when said switch means is in said second condition, and third and fourth brake means for holding said second tool support means against movement along said third and fourth axes when said switch means is in said first condition.
Claim 10
Dependent Claim
389 words
A machine tool comprising first tool support means for moving a first tool toward and away from a workpiece along a first axis and for moving the first tool toward and away from the workpiece along a second axis which extends transversely to said first axis, second tool support means for moving a second tool toward and away from the workpiece along a third axis and for moving the second tool toward and away from the workpiece along a fourth axis which extends transversely to said third axis, first and second motor means each of which is associated with one of said first and second axes and is operable to move said first tool support means along the associated one of said first and second axes, third and fourth motor means each of which is associated with one of said third and fourth axes and is operable to move said second tool support means along the associated one of third and fourth axes, first feedback signal generator means for generating feedback signals during operation of said first motor means, second feedback signal generator means for generating feedback signals during operation of said second motor means, third feedback signal generator means for generating feedback signals during operation of said third motor means, fourth feedback signal generator means for generating feedback signals during operation of said fourth motor means, first and second error signal generators, first circuit means for interconnecting said first error signal generator, first feedback signal generator means, and first motor means to form a first servoloop, second circuit means for interconnecting said first error signal generator, third feedback signal generator means, and third motor means to form a second servoloop, first switch means operable between a first condition completing said first servoloop and opening said second servoloop and a second condition completing said second servoloop and opening said first servoloop, third circuit means for interconnecting said second error signal generator, second feedback signal generator means, and second motor means to form a third servoloop, fourth circuit means for interconnecting said second signal generator, third feedback signal generator means, and fourth motor means to form a fourth servoloop, and second switch means operable between a first condition completing said third servoloop and opening said fourth servoloop and a second condition completing said fourth servoloop and opening said third servoloop.
Claim 11
Dependent Claim
389 words
A machine tool comprising first tool support means for moving a first tool toward and away from a workpiece along a first axis and for moving the first tool toward and away from the workpiece along a second axis which extends transversely to said first axis, second tool support means for moving a second tool toward and away from the workpiece along a third axis and for moving the second tool toward and away from the workpiece along a fourth axis which extends transversely to said third axis, first and second motor means each of which is associated with one of said first and second axes and is operable to move said first tool support means along the associated one of said first and second axes, third and fourth motor means each of which is associated with one of said third and fourth axes and is operable to move said second tool support means along the associated one of third and fourth axes, first feedback signal generator means for generating feedback signals during operation of said first motor means, second feedback signal generator means for generating feedback signals during operation of said second motor means, third feedback signal generator means for generating feedback signals during operation of said third motor means, fourth feedback signal generator means for generating feedback signals during operation of said fourth motor means, first and second error signal generators, first circuit means for interconnecting said first error signal generator, first feedback signal generator means, and first motor means to form a first servoloop, second circuit means for interconnecting said first error signal generator, third feedback signal generator means, and third motor means to form a second servoloop, first switch means operable between a first condition completing said first servoloop and opening said second servoloop and a second condition completing said second servoloop and opening said first servoloop, third circuit means for interconnecting said second error signal generator, second feedback signal generator means, and second motor means to form a third servoloop, fourth circuit means for interconnecting said second signal generator, third feedback signal generator means, and fourth motor means to form a fourth servoloop, and second switch means operable between a first condition completing said third servoloop and opening said fourth servoloop and a second condition completing said fourth servoloop and opening said third servoloop.
Claim 12
Dependent Claim
75 words
A machine tool as set forth in claim 8 further including first and second brake means for holding first tool support means against movement along said first and second axes when said first and second switch means are in said second condition, and third and fourth brake means for holding said second tool support means against movement along said third and fourth axes when said first and second switch means is in said first condition.
Claim 13
Dependent Claim
78 words
An apparatus as set forth in claim 1 further including circuit means for connecting said first motor means, first feedback signal generator means and first error signal generator means in a first servoloop and for connecting said third motor means, third feedback signal generator means and first error signal generator means in a second servoloop, said circuit means including switch means operable between a first condition completing said second servoloop and a second condition completing said first servoloop.
Claim 14
Dependent Claim
369 words
A machine tool comprising first tool support means for moving a first tool toward and away from a workpiece along a first axis And for moving the first tool toward and away from the workpiece along a second axis which extends transversely to said first axis, second tool support means for moving a second tool toward and away from the workpiece along a third axis and for moving the second tool toward and away from the workpiece along a fourth axis which extends transversely to said third axis, first and second motor means each of which is associated with one of said first and second axes and is operable to move said first tool support means along the associated one of said first and second axes, third and fourth motor means each of which is associated with one of said third and fourth axes and is operable to move said second tool support means along the associated one of third and fourth axes, first feedback signal generator means for generating feedback signals during operation of said first motor means, second feedback signal generator means for generating feedback signals during operation of said second motor means, third feedback signal generator means for generating feedback signals during operation of said third motor means, fourth feedback signal generator means for generating feedback signals during operation of said fourth motor means, first and second error signal generators, first circuit means for interconnecting said first error signal generator, first feedback signal generator means, and first motor means to form a first servoloop, second circuit means for interconnecting said first error signal generator, third feedback signal generator means, and third motor means to form a second servoloop, first switch means operable between a first condition completing said first servoloop and a second condition completing said second servoloop, third circuit means for interconnecting said second error signal generator, second feedback signal generator means, and second motor means to form a third servoloop, fourth circuit means for interconnecting said second signal generator, third feedback signal generator means, and fourth motor means to form a fourth servoloop, and second switch means operable between a first condition completing said third servoloop and a second condition completing said fourth servoloop.
Claim 15
Dependent Claim
369 words
A machine tool comprising first tool support means for moving a first tool toward and away from a workpiece along a first axis And for moving the first tool toward and away from the workpiece along a second axis which extends transversely to said first axis, second tool support means for moving a second tool toward and away from the workpiece along a third axis and for moving the second tool toward and away from the workpiece along a fourth axis which extends transversely to said third axis, first and second motor means each of which is associated with one of said first and second axes and is operable to move said first tool support means along the associated one of said first and second axes, third and fourth motor means each of which is associated with one of said third and fourth axes and is operable to move said second tool support means along the associated one of third and fourth axes, first feedback signal generator means for generating feedback signals during operation of said first motor means, second feedback signal generator means for generating feedback signals during operation of said second motor means, third feedback signal generator means for generating feedback signals during operation of said third motor means, fourth feedback signal generator means for generating feedback signals during operation of said fourth motor means, first and second error signal generators, first circuit means for interconnecting said first error signal generator, first feedback signal generator means, and first motor means to form a first servoloop, second circuit means for interconnecting said first error signal generator, third feedback signal generator means, and third motor means to form a second servoloop, first switch means operable between a first condition completing said first servoloop and a second condition completing said second servoloop, third circuit means for interconnecting said second error signal generator, second feedback signal generator means, and second motor means to form a third servoloop, fourth circuit means for interconnecting said second signal generator, third feedback signal generator means, and fourth motor means to form a fourth servoloop, and second switch means operable between a first condition completing said third servoloop and a second condition completing said fourth servoloop.
References Cited (Backward Citations)
US3063311A
Cited
US3343243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |