This paper introduces the characteristics and design principles of the strong springs of the molds. Theoretically, the stress, stiffness and deformation of the deformed wire springs and round steel wire springs are analyzed. The design method of the strong spring of the mold is briefly described, and the main problems affecting the development of the strong spring of the mold are pointed out.
In recent years, with the development of the mold industry, the number and variety of mold springs, especially profiled wire springs, have been increasing. Profiled die springs are characterized by high stiffness, long life, and small size. However, the development of its design theory is relatively slow. At present, except for the design method of the square section strong spring, the design methods of other section strong springs basically pass the test according to the specific section to find out the correction coefficient to get the empirical design formula of the specific section. A brief introduction to design issues.
This problem is a problem that people who use this type of spring are concerned and must make clear. The following is a comparison of a square section with a circular section coil spring.
In the same space, the spring load capacity of square section wire springs is 43-48% higher than that of round-section springs. Obviously, the rectangular spring is more than 50%.
Excessive use of stress is the main reason for the destruction of the spring. Under the same conditions, the profiled steel wire spring has a 13-14% longer life than a round steel wire spring.
Profiled wire springs can produce large amounts of deformation.
Shaped shock absorber springs are heavy.
The linearity is better than that of a round-section spring, that is, the stiffness tends to be a constant value. Especially springs with long sides wound parallel to the axis.
The scope of application is subject to certain restrictions: From the analysis, it can be seen that if springs of profiled cross-section materials cannot fully utilize their advantages, they will not produce economic benefits. In what circumstances can they be used well?
1, with round cross-section material can not reach the design load.
2, replace the round cross-section composite spring.
3, when using the round material spring can not reach the required amount of deformation.
4, the spring installation space is small.
5. Where strict spring characteristics are required.
In recent years, with the development of the mold industry, the number and variety of mold springs, especially profiled wire springs, have been increasing. Profiled die springs are characterized by high stiffness, long life, and small size. However, the development of its design theory is relatively slow. At present, except for the design method of the square section strong spring, the design methods of other section strong springs basically pass the test according to the specific section to find out the correction coefficient to get the empirical design formula of the specific section. A brief introduction to design issues.
This problem is a problem that people who use this type of spring are concerned and must make clear. The following is a comparison of a square section with a circular section coil spring.
In the same space, the spring load capacity of square section wire springs is 43-48% higher than that of round-section springs. Obviously, the rectangular spring is more than 50%.
Excessive use of stress is the main reason for the destruction of the spring. Under the same conditions, the profiled steel wire spring has a 13-14% longer life than a round steel wire spring.
Profiled wire springs can produce large amounts of deformation.
Shaped shock absorber springs are heavy.
The linearity is better than that of a round-section spring, that is, the stiffness tends to be a constant value. Especially springs with long sides wound parallel to the axis.
The scope of application is subject to certain restrictions: From the analysis, it can be seen that if springs of profiled cross-section materials cannot fully utilize their advantages, they will not produce economic benefits. In what circumstances can they be used well?
1, with round cross-section material can not reach the design load.
2, replace the round cross-section composite spring.
3, when using the round material spring can not reach the required amount of deformation.
4, the spring installation space is small.
5. Where strict spring characteristics are required.
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