STUDY ON THE KINEMATICS OF NC MACHINING

FOR THE HELICOID WITH SPECIAL SHAPE

AND ITS APPLICATION

Yao Nanxun

(College of Mechanical Engineering, Dalian University of Technology, Dalian 116024)

Zhang Hui

(Department of Precision Instruments and Mechanicals, Tsinghua University, Beijing 100084)

Wang Dianlong

(College of Mechanical Engineering, Dalian University of Technology, Dalian 116024)

Abstract: By the study to the principle of kinematics, a special property for the curve line on curved surface is found, that is the curve line is with a characteristic traverse guage on it. So the characteristic machining method to imatate the movement of characteristic traverse guage along the curve line is presented. As an example for machining the helicoid with special shape by the characteristic machining method, the conical miller with equal helix angle ground by disk typed wheel is shown.

Key words: Helicoid  Curved surface  Machining  Kinematics

CLC No: TG506.6

国家自然科学基金资助项目(59075178). Received 20030619, received in revised form 20040130