Process and apparatus for controlling the spindle speed of a gea

Details Process and apparatus for controlling the spindle speed of a gea Process and apparatus for controlling the spindle speed of a gea

1986-06-19

1987-12-08

Shoop, Jr., William M.

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Synchronizing or phasing control

318 41, 318 69, 318 77, 409 15, H02P 546

Patent

active

047120487

ABSTRACT:
A tool spindle is driven by a motor and is connected to an angle of rotation transmitter. The signal of the transmitter connected to the tool spindle represents the desired value for the drive of a work piece spindle. The angle of rotation of the workpiece spindle is measured with another transmitter. A control deviation signal which is fed into a servo amplifier of the workpiece spindle drive via a controller is formed from both transmitter signals. A variable observer circuit into which the control deviation signal is also fed is arranged in parallel to the controller. The control deviation signal is stored sequentially in several sample and hold circuits by means of a multiplexer circuit during one tool revolution. The content of each sample and hold circuit is integrated by means of a respective integrator. During the following cycle, a correction signal, which is added to the output signal of the controller, is formed by sequential interrogation of the integrators by means of a demultiplexer circuit. The multiplexer and demultiplexer circuits are controlled by a synchronizing circuit which is synchronized by an index signal.

REFERENCES:
patent: 3430148 (1969-02-01), Miki
patent: 4178537 (1979-12-01), Angst
patent: 4253050 (1981-02-01), Angst
patent: 4271379 (1981-06-01), Eckelmeyer
patent: 4414495 (1983-11-01), Sumi

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