Research On The High Speed Machining Tooling System

With the development of science and technology, the mechanical manufacturing technology is stridden forward all in the high speed, high quality, high accuracy and low consumption. High speed machining is one of the four advanced manufacturing technologies. At present, multi-function machine tools such as turning-milling machine, drilling- milling machine, etc. have been developed. The tool system, which influences the quality and efficiency of the high speed machining, needs farther researches. Therefore, it is significant to design a multi-function main shaft and research on its tool system.Considering the finished works in the laboratory and actual conditions, the focal point of this research is placed on the global design of the machining end of the main shaft, the theoretical calculation and the simulation of the HSK tool-holder and its optimal selection.The cylindrical of the shaft is connected to the vacuum sucker through the flange, and the inner hole is combined with the HSK tool-holder for respectively turning and milling. Then the static and modal analysis are applied by using the finite element software ANSYS to check its intension.Based on the elastic-plastic theory, the model of the HSK tool-holder/shaft connecting is established and the displacement under centrifugal force is deduced. Then the static analysis is applied by using ANSYS to verify the theoretical solution above. The influences of pre-tightening force, magnitude of interference and rotational speed on the connecting performance of the connecting system are simulated.Finally, the priorities of the connecting systems with different parameters are obtained with the Analytic Hierarchy Process.