In ordinary milling machines additional power grinding head

adopting two and half spindle NC system

NC grinding processing large circles curve track is carried out.The advantages of this processing method is avoiding the influence on processing of lead screw clearance for changing the parts clamping position

and the integrality of large circle curve track is effectively ensured.Because of the instantaneous automatic compensation of grinding wheel wear is carried out in the grinding process

the machining accuracy of parts outline is improved

the machining error is decreased and the consistency of great circles curve accuracy is effectively ensured.It has a good exemplary role for the NC grinding processing of various non-circular curve parts

and the application range and practical of NC technology is expanded.