Machine tool for machining crankshafts and control system for th

Details Machine tool for machining crankshafts and control system for th Machine tool for machining crankshafts and control system for th

1981-07-01

1983-03-01

Ruggiero, Joseph F.

Boots, shoes, and leggings

5116571, 82 9, 318573, 364169, C05B 19415, B23B 518

Patent

active

043756700

ABSTRACT:
A machine tool and its associated control system has workpiece holding me which are mounted on a frame for rotation about a fixed axis and are adapted to support and to be fixedly connected to a workpiece, such as a crankshaft, centered on that axis. The machine tool further has a tool carriage which is slidably mounted on the frame for displacement in a direction which is transverse to the rotational axis; first drive means which serve to impart angular rotation to the workpiece holding means about the axis; second drive means which serve to displace the tool carriage in the transverse direction; and electronic control means for controlling the first and second drive means so that the desired angular rotation and transverse displacement are performed with a predetermined, generally nonlinear relationship to each other. The electronic control means include a first controller operatively connected to the first drive means causing it to impart a desired angular rotation to the workpiece holding means; a second controller operatively connected to the second drive means and adapted to control the transverse displacement; and means for determining points of inflection and characteristic values defining a series of linear approximations of the generally nonlinear relationship, and interpolating means operable to provide reference inputs to the two controllers.

REFERENCES:
patent: 2942526 (1960-06-01), Maecker
patent: 3880025 (1975-04-01), Kralowetz et al.
patent: 3919614 (1975-11-01), Wespi
patent: 4099431 (1978-07-01), Kreucher
patent: 4269551 (1981-05-01), Kralowetz
patent: 4305689 (1981-12-01), Yamade et al.

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