Method for manufacturing spiral gear carrier for electronic parking brake system

Abstract

The invention provides a method for manufacturing a spiral gear carrier for an electronic parking brake system. The spiral gear carrier comprises a spiral gear 1, an output shaft 3 formed on one side of the spiral gear 1, a spline part 5 formed at one end of the output shaft 3 as well as a support shaft 7 formed on the other side of the spiral gear 1. The spiral gear carrier is manufactured with a cold forging method and comprises the steps as follows: step S10, manufacturing a first forming body S1; step S20, manufacturing a second forming body S2; step S30, manufacturing a third forming body S30; and step S40, performing final turning. The spiral gear carrier which has a complex structure, and is provided with the spiral gear in the middle and used for the electronic parking brake system is manufactured with the cold forging method, and has excellent characteristics in the aspects of cost, productivity, durability, hardness, strength and the like.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a method for manufacturing a helical gear frame for an electronic parking brake system. Background technique [0002] Generally speaking, when designing the extrusion forging process, according to the cold forging forming ratio, the front and rear extrusion ratios are designed within a predetermined range, so as to prevent die damage and improve quality. However, in auto parts, there are many parts that exceed the normal molding ratio, and when developing such parts, using a normal forging design will cause mold breakage, low productivity, and quality problems, resulting in increased manufacturing costs. It is difficult to develop products with a large front-to-back extrusion ratio, so forging companies avoid development. [0003] In addition, conventional helical gears generally use cutting processes, which are expensive to manufacture, have poor productivity, and are inferior to forged ...

AI Technical Summary

Problems solved by technology

[0003] In addition, conventional helical gears generally use cutting processes, which are expensive to manufacture, have poor productivity, and are not as durable as forged products in terms of durability.

Therefore, for components with large width differences and helical gears, cutting-based production methods are often used, which has many disadvantages in terms of productivity, durability, and production costs.

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