发明申请
US20110120281A1 COUNTER-ROTATING SPINDLE TRANSMISSION 审中-公开
逆转主轴传动

COUNTER-ROTATING SPINDLE TRANSMISSION
摘要:
A punch machine that includes a tool bearing configured to move along a lifting axis and to rotate about the lifting axis, first and second motors coupled to the tool bearing, a sensor for detecting rotation of the tool bearing, and a drive controller configured to adjust a rotational speed of either the first motor or the second motor to substantially eliminate rotation of the tool bearing detected by the sensor while the first and second motors are operated in a first manner.
信息查询
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