Spinning process of plate-made belt pulley and forming roller used for same

Abstract

The invention relates to a spinning process of a plate-made belt pulley and a forming roller used for the same. The spinning process comprises the following steps of: (1) installing a preforming roller and enabling a groove at the middle part of the preforming roller to be in T-shaped correspondence with a center line of base metal, rotating the preforming roller to be in the horizontal motion, carrying out stacked spinning and stacking the base metal outwards along the center line; (2) installing a primary-forming roller and enabling a primary-forming tooth groove of the primary-forming roller to be in T-shaped correspondence with the center line of the base metal which finishes the step (1), rotating the primary-forming roller to be in the horizontal motion, carrying out spinning on the base metal which finishes the step (1) and enabling a groove shape of the base metal to begin to take shape; and (3) installing a finishing roller and enabling a shaped tooth groove of the finishing roller to be in correspondence with the groove shape of the base metal which finishes the step (2), rotating the finishing roller to be in the horizontal motion, and carrying out fine spinning and finishing to achieve the final groove shape of the product. The invention ensures that an aluminum magnesium alloy material is suitable for batched production and application of the plate-made spinning belt pulley, effectively reduces the product weight, solves the problems of low strength and low processing performance of the aluminum magnesium alloy material, solves the strength problem, and realizes the stable spinning production.

Description

technical field [0001] The invention relates to a production process of a spinning belt pulley made of an inner plate of an automobile engine and a forming spinning pulley used in the process. Background technique [0002] At present, the material of the plate spinning pulley of the automobile engine is mainly low-carbon steel with high elongation performance, but the density of the steel is relatively high, which is an important reason hindering the lightweight of the automobile. The density of aluminum alloy material is only 1 / 3 of that of steel, and it is widely used in automobiles to reduce the weight of the whole vehicle, which is also the general trend of automobile development. Pulley spinning is mainly a chipless processing method, which has high requirements on the formability of the materials used. At present, the aluminum alloy sheets produced in China either do not have sufficient strength to meet the requirements, or have sufficient strength but poor elongation ...

AI Technical Summary

Problems solved by technology

Pulley spinning is mainly a chipless processing method, which has high requirements on the formability of the materials used. At present, the aluminum alloy sheets produced in China either do not have sufficient strength to meet the requirements, or have sufficient strength but poor elongation performance. Poor, with the existing spinning forming process, defects such as material cracking, delamination, and adhesion are prone to failure during the spinning forming process, especially those with a large number of grooves, and the spinning of aluminum-magnesium alloys in plates has not been successfully realized in China. production precedent

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