Method and equipment for manufacturing bearing ferrule

Abstract

The invention relates to method and equipment for manufacturing a bearing ferrule. The method comprises the following steps of: (1) shearing a bar stock into a specified size and feeding to a heating device; (2) heating the sheared bar stock to a preset value in the heating device; (3) feeding into a piercer to make a pierced billet; (4) then, cooling the pierced billet to 640-700 DEG C, and randomly switching to a hot-rolling and cutting equipment; (5) continuously working and processing to obtain a bearing ferrule blank by a hot-rolling, molding and hobbing device in the hot-rolling and cutting equipment; and (6) carrying out shot blasting treatment on the bearing ferrule blank and switching the bearing ferrule blank to bearing finishing machining. By introducing the two working procedures of hot-rolling molding and cutting as well as shot blasting treatment in the production process of the bearing ferrule, the invention realizes the continuous and component-based production for manufacturing the bearing ferrule in the seamless pipe field, solves the prominent problems of material waste, energy waste, pollution, and the like existing in a traditional forging and seamless pipe production process, and creates a novel energy-saving emission-reducing production line.

Description

technical field [0001] The invention relates to a bearing part, in particular to a manufacturing method and equipment for a bearing ring. Background technique [0002] Bearings are usually composed of inner and outer rings, rolling elements and cages, etc. It should have the characteristics of wear resistance, impact resistance, fatigue resistance, corrosion resistance, high finish and high dimensional accuracy. Bearings are widely used in the automobile industry, metallurgical industry, high-speed trains, generators and home appliance industries... Especially in the past 20 years, the bearing industry has made great progress. As far as the world is concerned, eight major bearing manufacturers with SKF as the leader have now been formed. , operating giant multinational corporations. So far, no bearing company in our country has entered the list of famous multinational companies recognized by the world, but the development speed is amazing. Although the world is impacted by ...

AI Technical Summary

Problems solved by technology

[0004] 20 years ago, the inner and outer rings of bearings were made of round cakes after steel rods were upset, and the yield was low, less than 60%.

It can be seen from the above process that the use of seamless steel pipes to produce bearing inner and outer rings has the disadvantages of long production process, wide range of processes and high manufacturing costs.

And more importantly, due to the presence of pickling, phosphating, and saponification in the above processes, not only consume a lot of energy, but also have adverse effects on the environment

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