Machining technology of cam reinforcement lever mechanism

Abstract

The invention relates to a machining technology of a cam reinforcement lever mechanism. The machining technology includes the steps of rough machining, heat treatment and finish machining. Due to the fact that an arc surface of a workpiece is machined through a grinding method, the finish degree of the arc surface of the workpiece is improved, rotation resistance in heavy load of the workpiece is reduced, and product performance and product consistency are improved. Due to the fact that machining devices for linear cutting and the like are replaced by a grinding machine, work efficiency is improved, and volume production is improved beneficially.

Description

technical field

[0001] The invention relates to the field of mechanical processing, in particular to a processing technology of a cam booster lever mechanism. Background technique

[0002] Pneumatic disc brakes were introduced into China from Europe at the beginning of this century, and have developed rapidly in China in the past ten years. Pneumatic disc brakes have two main functional modules, one is the wear gap automatic adjustment mechanism, and the other is the braking force booster lever mechanism ( figure 1 ). The design principle of the booster lever is a cam mechanism. As a cam mechanism, it is composed of two non-concentric arc surfaces. The arc surface needs to have high hardness, and the entire lever needs to have high strength. Therefore, the lever processing technology is very complicated, which needs to meet the needs of mass production and ensure the processing quality of the product. The existing product processing plan adopts forging blanks, and after r...

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