US3713746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guiding apparatus for controlling rectilinearly movable part of a machine tool
Assignee: Rheinmetall Air Defence AG
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Filing: 1970-12-17
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Granted: 1973-01-30
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Expires: 1990-12-17
Abstract
Abstract Guiding apparatus for controlling the movement of a rectilinear movable part in a machine tool. The part is guided by reference to a stationary beam of light. Part is mounted in sliding contact bearings in guideway. Disposition of the part controlled by electro-hydraulic circuit which operates on the bearings in response to changes in position of the part relative to the stationary light beam.
Inventors
- 👤 W Luthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:22
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/24; B23Q23/00; F; F16; F16C; F16C29/00; F16C2322/00; F16C2322/39; Y; Y10; Y10T; Y10T408/00; Y10T408/16; Y10T408/21
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
174 words
An apparatus including a machine tool having a rectilinearly movable part and a guiding means for controlling the movement of said part, said apparatus comprising: a machine bed; a first carriage rectilinearly movable in a first plane along said machine bed; a first detector flange suspended from said first carriage; means for suspending said detector flange from said first carriage at three statically determined force-free points; a first light source means fixedly positioned on said machine bed for generating a first pair of parallel rays determining said first plane, said rays being parallel to the direction of rectilinear movement of said first carriage; a first plurality of detectors supported by said detector flange, said detectors symmetrically receiving said rays when the movement of said first carriage is in said direction and in said first plane, said detectors being operable to detect deviation of said movement of said first carriage from said direction and from said first plane; and first electro-hydraulic circuit means responsive to said deviation detected by said detectors to correct said deviation.
Claim 2
Independent Claim
174 words
An apparatus including a machine tool having a rectilinearly movable part and a guiding means for controlling the movement of said part, said apparatus comprising: a machine bed; a first carriage rectilinearly movable in a first plane along said machine bed; a first detector flange suspended from said first carriage; means for suspending said detector flange from said first carriage at three statically determined force-free points; a first light source means fixedly positioned on said machine bed for generating a first pair of parallel rays determining said first plane, said rays being parallel to the direction of rectilinear movement of said first carriage; a first plurality of detectors supported by said detector flange, said detectors symmetrically receiving said rays when the movement of said first carriage is in said direction and in said first plane, said detectors being operable to detect deviation of said movement of said first carriage from said direction and from said first plane; and first electro-hydraulic circuit means responsive to said deviation detected by said detectors to correct said deviation.
Claim 3
Independent Claim
174 words
An apparatus including a machine tool having a rectilinearly movable part and a guiding means for controlling the movement of said part, said apparatus comprising: a machine bed; a first carriage rectilinearly movable in a first plane along said machine bed; a first detector flange suspended from said first carriage; means for suspending said detector flange from said first carriage at three statically determined force-free points; a first light source means fixedly positioned on said machine bed for generating a first pair of parallel rays determining said first plane, said rays being parallel to the direction of rectilinear movement of said first carriage; a first plurality of detectors supported by said detector flange, said detectors symmetrically receiving said rays when the movement of said first carriage is in said direction and in said first plane, said detectors being operable to detect deviation of said movement of said first carriage from said direction and from said first plane; and first electro-hydraulic circuit means responsive to said deviation detected by said detectors to correct said deviation.
Claim 4
Independent Claim
174 words
An apparatus including a machine tool having a rectilinearly movable part and a guiding means for controlling the movement of said part, said apparatus comprising: a machine bed; a first carriage rectilinearly movable in a first plane along said machine bed; a first detector flange suspended from said first carriage; means for suspending said detector flange from said first carriage at three statically determined force-free points; a first light source means fixedly positioned on said machine bed for generating a first pair of parallel rays determining said first plane, said rays being parallel to the direction of rectilinear movement of said first carriage; a first plurality of detectors supported by said detector flange, said detectors symmetrically receiving said rays when the movement of said first carriage is in said direction and in said first plane, said detectors being operable to detect deviation of said movement of said first carriage from said direction and from said first plane; and first electro-hydraulic circuit means responsive to said deviation detected by said detectors to correct said deviation.
Claim 5
Dependent Claim
185 words
An apparatus as claimed in claim 1, further comprising a second carriage rectilinearly movable on said first carriage in a second plane perpendicular to said first plane; a second light source means fixedly positioned on said detector flange of said first carriage for generating a second pair of parallel rays determining said second plane, said second pair of rays being parallel to the direction of rectilinear movement of said second carriage; a second detector flange susPended from said second carriage; means for suspending said second detector flange from said second carriage at three statically determined, force-free points; a second plurality of detectors supported by said second detector flange, said second plurality of detectors symmetrically receiving said second pair of rays when the movement of said second carriage is in said direction of rectilinear movement thereof and in said second plane, said second plurality of detectors being operable to detect deviation of said movement of said second carriage from said direction and from said second plane; and second electro-hydraulic circuit means responsive to said deviation detected by said second plurality of detectors to correct said deviation.
Claim 6
Dependent Claim
50 words
An apparatus as claimed in claim 1, wherein said machine bed has guideways therein; said first carriage includes a plurality of shoes engaging said guideways and a base attached to said plurality of shoes; and said electro-hydraulic circuit means including piston means for moving said shoes perpendicularly to said guideways.
Claim 7
Dependent Claim
77 words
An apparatus as claimed in claim 3, wherein said machine bed has two guideways parallel to said direction of rectilinear movement of said first carriage; said plurality of shoes comprise a first pair of shoes engaging a first of said guideways, said first pair of shoes being separated by said first detector flange, and a second pair of shoes engaging a second of said guideways, said second pair of shoes being separated by said first detector flange.
Claim 8
Dependent Claim
113 words
An apparatus as claimed in claim 4, wherein said means for suspending comprises a rail attached to said first detector flange and having opposite ends, each of which is connected at a single point thereof to one of said first pair of shoes; a transverse tube connected at one end thereof to said first detector flange and having adjacent the other end thereof a spherical extension; a ball socket supporting said spherical extension; and a pair of arms having first ends attached to said ball socket and extending in opposite directions parallel to said rail; the opposite ends of each of said arms being supported on one of said second pair of shoes.
Claim 9
Dependent Claim
98 words
An apparatus as claimed in claim 5, further comprising a recess formed in each of said first pair of shoes; a recess formed in each of said opposite ends of said rail in alignment with the respective said recess in said shoes; spherical balls positioned in the respective aligned recesses in said shoes and said ends of said rail; a plate spring positioned above each of said ends of said rail; and bracket means attached to each of said first pair of shoes and clamping said ends of said rail, said balls and said springs against said shoes.
Claim 10
Dependent Claim
94 words
An apparatus as claimed in claim 5, further comprising depressions formed in each of said second pair of shoes; first balls positioned in said depressions, said ends of said arms resting on said first balls; second balls resting on the top of said ends of said arms in alignment with said first balls; an angular bracket attached to each of said second pair of shoes, each of said angular brackets having a bore therein; and spring loaded means positioned within each of said bores of said angular brackets and bearing on said second balls.
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) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |