Manufacturing mold for split air spring

Abstract

The invention discloses a manufacturing mold for a split air spring. The manufacturing mold comprises an upper mold, a lower mold and a middle mold, wherein a cylindrical and sealed mold cavity is jointly formed by the upper mold, the lower mold and the middle mold, and a trademark ring is arranged at the upper end of the lower mold; the middle mold is composed of a first middle mold and a secondmiddle mold, the first middle mold is fixedly connected with the upper mold, and the second middle mold is fixedly connected with the trademark ring on the lower mold; and heating cavities are formedin the upper mold, the lower mold and the middle mold, heating holes are formed in the heating cavities, and the heating holes communicate with heat conveying pipes. According to the manufacturing mold for the split air spring, an air spring mold in the traditional technology is changed into cooperation among the upper mold, the middle mold and the lower mold from cooperation between an upper moldand a lower mold, and opening and closing of the molds are controlled through an air cylinder, so that operation is convenient and fast, the structure is simple, and time and labor are saved when anair spring is taken; and the heating cavities are formed in the upper mold, the lower mold and the middle mold, so that the air spring is conveniently and evenly heated, the surface smoothness of theproduct is high, the product performance is better, and the stress distribution is uniform.

Description

Technical field [0001] The present invention relates to the technical field of air spring manufacturing molds, in particular to a split air spring manufacturing mold. Background technique [0002] The gas spring is filled with compressed gas in a sealed container and uses the compressibility of the gas to achieve its spring action. The stiffness of this spring is variable, because when the load acting on the spring increases, the gas pressure in the container increases, and the stiffness of the spring increases. Conversely, when the load decreases, the air pressure in the spring decreases and the stiffness decreases, so it has ideal elastic properties. The air spring has ideal non-linear elastic characteristics. After the height adjustment device is installed, the height of the vehicle body does not change with the increase or decrease of the load. The spring stiffness can be designed to be low and the ride comfort is good. Its working principle is to fill a closed pressure cyl...

AI Technical Summary

Problems solved by technology

[0003] The traditional air spring mold is a combination of upper and lower molds. This method is suitable for cylindrical air springs. In recent years, split air springs have appeared on the market. This air spring is formed by traditional molds. When taking out the product, it is necessary to support the capsule with a jig surface, and because only the upper and lower molds are matched, only the gap at the junction can be exhausted, and the surface quality of the product is not high

Moreover, in this way, the product is subjected to uneven force in the mold cavity, less heating ports, and the product is easy to deform, resulting in poor surface finish of the air spring.

Images