In this paper the shortage of general machine tool spindle design is analysed and the fuzzy reliability design is brought apply forward for rigidity check of machine tool spindle.

The strength and rigidity charicteristics under horizontal insert and vertical lift working conditions are analysed,based on these,the arm sensitivity was analysed by using Monte Carlo simulations.

The restriction,loading position and loading pattern of the model are determined by the accurate division of the grillwork,and the strength and rigidity of the roll under practical operation condition are analyzed to confirm the maximal stress place and distortion trend of the press roll,wh.

Study on the method of intensity checking of shafts with FEA;

Based on its static,dynamic analysis and dynamic intensity checking,stress and displacement distribution as well as dynamic response of the whole system and its important components are obtained.

This paper analyzes the characteristic of non standard hydraulic cylinders, discourses upon the general scheme of the CAD of non standard hydraulic cylinders, and emphasizes on discussing the implementing method of the dimension driving module and intensity checking module.