Threading/tapping control apparatus

Details Threading/tapping control apparatus Threading/tapping control apparatus

2007-05-08

2007-05-08

Masih, Karen (Department: 2837)

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Running-speed control

C318S675000, C318S568100, C318S434000, C318S574000, C318S575000

Reexamination Certificate

active

11043163

ABSTRACT:
A workpiece is rotated by a master motor and a tool is linearly moved by a slave motor to cut a thread in the workpiece. Position feedback of the master motor is multiplied by a coefficient K and the result used as the position command of the slave motor. Provision is made of an angle synchronization learning control unit for storing one pattern cycle's worth of the correction data of the threading and adding the same to the position deviation. This control unit stores one pattern cycle's worth of the correction data corresponding to the position feedback of the master motor. The position is converted to the correction data corresponding to the time at that time based on the stored correction data to find the correction data and this is added to the position deviation.

REFERENCES:
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patent: 5698034 (1997-12-01), Clark et al.
patent: 2002/0185926 (2002-12-01), King et al.
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patent: 2757269 (1998-03-01), None
patent: 10-143215 (1998-05-01), None

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