The Design of A-Axis Control System of Numerical Control Grinding Tool for Scissors
Aiming at the problems of grinding machine that it is difficult to realize multi-axis linkage control and low transmis-sion precision of angle control mechanism(A-axis),according to the process characteristics of face grinding for scissors,a four-axis coordinate system of CNC machine tool was constructed,the A-axis mechanical control mechanism have been designed,then exploiting the mating NC control system,the modules of A-axis angle calculation and the wear compensation of grinding wheel were designed,four-axis linkage control between A and X、Y、Z axis have been achieved.By the producing practice,the an-gle precision and torque of grinding for scissors are ensured based on new A-axis control system,the mean time between failures reached 30000h,the surface roughness of scissors reached Ra0.2,production efficiency is more than 30%higher than 3-axis NC grinding machine.
NC Grinding MachineA-AxisMechanical DeviceNumerical Control SystemDesign
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