According to the theory of spring design,equal step cone screw press springs were designed and calculated by using MathCAD and technology of composed stiffness.

In this paper,the optimization design of cylinder helix spring was introduced and the mathematical model of cylinder helix spring was established.

Immune Algorithm (IA) based on Immune principles is introduced and the application of IA in fuzzy optimum design of cylinder helix spring is discussed in this paper.

This new hybrid algorithm is used to solve the problem of shear stress verifying of a cylinder helix spring,which belongs in a typical problem of mechanical optimization design.

Characteristic research on bending elasticity of prestressed cylindrical helical spring;

The measurement and compensation of the hysteresis of cylindrical helical spring;

This paper introduces the characters and the pressure measuring method of cylindrical helical spring, analyzes the problems of current measuring systems, sets forth the working principle of this measuring system and discusses the worktable\'s structure and the control system\'s design method.

Design of cylinder spiral spring of new model thread-taking-up mechanism in computerized embroidery machines

This paper analyses the relation of the tolerance, strength and rigidity of cyinder spiral spring and gives a method for calculating the tolerance of cylinder spiral spring.