Processing technology of spinning belt pulley with inner and outer lug bosses

Abstract

The invention relates to a processing technology of a spinning belt pulley with inner and outer lug bosses, which belongs to the field of manufacturing belt pulleys. The processing technology comprises the following steps of: stamping and performing a blank, reprocessing the performed blank and spinning the reprocessed and performed blank, wherein the reprocessing step of the performed blank comprises the following steps of: cold extruding a formed blank A into a performed blank B with a predetermined size; and rolling and forming the performed blank B by a spinning mode to form the performed blank C with inner and outer lug bosses. Compared with the traditional processing technology, the processing technology of the spinning belt pulley with the inner and outer lug bosses has wide source of raw materials, low cost, high production efficiency and low rejection rate, the spinning mode is used for replacing a stamping mode to produce the blank with the inner and outer lug bosses, products are not easy to deform, the dimensions of the product can achieve higher required precision, and an adopted spinning machine has small erosion, low power consumption and convenient maintenance.

Description

technical field [0001] The invention belongs to the field of pulley manufacture, in particular to the processing technology of a spinning pulley with inner and outer bosses. Background technique [0002] Many pulleys have internal and external bosses, which are mostly used to install bearings and electromagnetic coils, such as the more common product-the electromagnetic clutch pulley on the car air-conditioning compressor. For a long time, the production process of such products has been completed by steel die forging, rough turning, and then finishing turning, which not only consumes high energy, but also wastes materials and has low production efficiency. Therefore, the processing technology of producing the belt pulley with inner and outer bosses needs to be improved urgently. [0003] At present, most enterprises use cutting and stamping processes when processing inner and outer bosses. By cutting the blank, a preformed blank with a predetermined size is produced. This...

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Problems solved by technology

[0004] The present invention aims to provide a processing technology for spinning pulleys with inner and outer bosses, which not only solves the disadvantages of traditional forging, turning and other processes such as material waste, high energy consumption and low efficiency, but also produces products according to this process. High precision, good physical and mechanical properties, etc.

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