Machine element or mechanism – Mechanical movements – Rotary to alternating rotary
Patent
1993-11-09
1995-02-28
Luong, Vinh T.
Machine element or mechanism
Mechanical movements
Rotary to alternating rotary
744248R, 74586, 7449003, F16H 2702
Patent
active
053926633
ABSTRACT:
A machine element support comprised of a plurality of axially extensible and contractible servostruts which are individually adjustable and collectively controllable. The struts comprise an outer tubular member and a slidably, interfitted, elongated, inner member. The powered servostruts are movably connected to an machine element such as a spindle head by one of the members on one end and to a rigid machine tool frame by the other of the members on the other end. Linear position sensors mounted on the servostruts serve to precisely measure strut extension and retraction for feedback control purposes. A preferred servostrut configuration is a hexapodal array, in which two servostruts are mounted side by side in each of the three well-known orthogonal axes of machine tool practice, providing six-axis movement and positioning of the tool head or workstation relative to the workpiece.
REFERENCES:
patent: 629042 (1899-07-01), Moreton
patent: 3955472 (1976-05-01), Frankiw et al.
patent: 4095655 (1978-06-01), Still
patent: 4302138 (1981-11-01), Zarudiansky
patent: 4448832 (1984-05-01), Kidwell
patent: 4523882 (1985-06-01), Hengesbach
patent: 4577621 (1986-03-01), Patel
patent: 4651589 (1987-03-01), Lambert
patent: 4686800 (1987-08-01), McCormick
patent: 4712969 (1987-12-01), Kimura
patent: 4848179 (1989-07-01), Ubhayakar
patent: 4872291 (1989-10-01), Lindsey
patent: 4988244 (1991-01-01), Sheldon et al.
patent: 5028180 (1991-07-01), Sheldon et al.
patent: 5129279 (1992-07-01), Rennex
patent: 5205613 (1993-04-01), Brown
Proceedings of the Institution of Mechanical Engineers 1965-66, vol. 180, Part I, No. 15, "A Platform with Six Degrees of Freedom", D. Stewart, pp. 371-386.
Journal of Mechanisms, Transmissions, and Automation in Design, Jun. 1984, vol. 106 of the Transactions of the ASME, pp. 191-198, "Feasibility Study Of A Platform Type of Robotic Manipulators From A Kinematic Viewpoint", by D. C. H. Yang and T. W. Lee.
Excerpt from the London Sunday Times of 3 Jan. 1988, Polishing Off The Japanese.
Literature from the National Physical Laboratory (U.K.) in 1987, "Tetraform 1--A Nanoprecision Machine Tool Concept".
Luong Vinh T.
The Ingersoll Milling Machine Company
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