Patent ID: 8764357
Filing Date: 2014-07-01
Classification: B23Q,Y10T

Abstract:
1. A deflection correction system for a milling machine, the milling machine having a carriage, a main spindle seat mounted on the carriage and extending along an axis, and a motor mounted on the carriage, coupled to the main spindle seat, and operable to drive displacement of the main spindle seat relative to the carriage along the axis, said deflection correction system comprising: a control unit; a displacement sensor coupled electrically to said control unit and configured to detect displacement of the main spindle seat relative to the carriage along the axis; at least one pressure cylinder including a pressure sensor electrically coupled to said control unit and configured to detect fluid pressure in said pressure cylinder; wherein said control unit is configured to determine a pressure range as a function of the displacement detected by said displacement sensor, and to maintain the fluid pressure in said pressure cylinder within the pressure range, thereby controlling said control rod via said cylinder body to position the second end portion of the main spindle seat relative to the axis.