Cold heading forming wear-resisting sliding block shaft and forming method

Abstract

The invention discloses a cold heading forming wear-resisting sliding block shaft and a forming method, relates to the technical field of transmission parts for fuel oil internal combustion engines, and aims to solve the problems that due to the fact that in the current market, after a whole fuel oil internal combustion engine crankshaft is generally subjected to heat treatment to a certain hardness, high-frequency quenching is performed on a part with high local requirement, the method is generally higher in cost and complex in process, and the whole part is directly scrapped to cause larger waste when local abrasion or other quality problems occur. A sliding block head body is arranged at the upper end of the wear-resisting sliding block shaft, a knurling matching shaft body is arranged in the middle of the lower end of the sliding block head body, a guide end is arranged below the knurling matching shaft body, a sliding working circular arc table is arranged in the middle of the upper end of the sliding block head body, circular arc bosses are symmetrically arranged on the two sides of the upper end of the sliding block head body and located on the two sides of the upper portion of the sliding working circular arc table, and the upper end face of the sliding working circular arc table is in a circular arc shape with the middle part protruding upwards.

Description

technical field [0001] The invention relates to the technical field of transmission parts for fuel internal combustion engines, in particular to a cold heading forming wear-resistant slider shaft and a forming method. Background technique [0002] As we all know, when the fuel internal combustion engine crankshaft, construction machinery transmission swing wall, cam, chain and other transmission mechanisms are driven, a certain load is generated between the parts, and the wear-resistant slider shaft fits the cam and is driven up and down by the cam. The telescopic connection realizes the opening and closing transmission of the valve, which has special requirements for the key contact surface of the wear-resistant slider shaft with high hardness and wear resistance. [0003] At present, on the market, the entire crankshaft of a fuel internal combustion engine is usually heat-treated to a certain hardness, and then high-frequency quenching is performed on the parts with high l...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a cold heading forming wear-resistant slider shaft to solve the above-mentioned background technology. At present, the whole crankshaft of a fuel internal combustion engine is usually heat-treated to a certain hardness on the market, and then the local parts with high requirements are heat-treated. High-frequency quenching, this method usually has a high cost and a relatively complicated process. When local wear or other quality problems occur, the entire part is directly scrapped, resulting in a large waste

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