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Warm and cold precision forming method of large modulus and high boss bevel gear

A technology of precision forming and high boss, which is used in manufacturing tools, forging/pressing/hammer devices, forging/pressing/hammering machines, etc. It can solve the problems of poor mechanical properties, complicated procedures, and high material costs, and achieve low cost. , mold life guarantee, the effect of simple mold structure

Active Publication Date: 2016-03-02
HUOSHAN HUINENG AUTO PARTS MFG
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a warm-cooled precision forming method for large-modulus high-boss bevel gears, which solves the complicated procedures, poor mechanical properties and material costs in the traditional large-modulus high-boss bevel gear forming process advanced questions

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  • Warm and cold precision forming method of large modulus and high boss bevel gear
  • Warm and cold precision forming method of large modulus and high boss bevel gear
  • Warm and cold precision forming method of large modulus and high boss bevel gear

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Embodiment Construction

[0030] A method for warm and cold precision forming of a large modulus high boss bevel gear, comprising the following steps:

[0031] (1) Use a cylindrical bar sawing machine to cut the blank, and heat the blank to 750°C through an intermediate frequency diathermy furnace, and then refer to figure 1 The structural pre-heading blank 31;

[0032] (2) Quickly put the pre-forged forging on one side of the warm forging closed forming mold for warm forging closed forming; this process needs to grasp the speed beat and minimize the influence of temperature drop on the process, so pre-forging should be considered The placement between the equipment and the warm forging equipment, install the pre-forging equipment and the warm forging equipment back to back, reduce the running distance of the workpiece from the pre-forging equipment to the warm forging equipment, and reduce the temperature drop;

[0033] (3) Spheroidizing and annealing the warm forged and closed parts to reduce their ...

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Abstract

The invention discloses a temperature cooling precision forming method of a big modulus high boss bevel gear. The method includes the steps of feeding pre-upsetting blank, conducting warm forging blocking forming on a warm forging blocking forming die, afterwards, carrying out spheroidizing annealing, shot blasting, alramenting and saponification treatment, finally putting the blank into a cold-finish die so that a qualified tooth form can be squeezed out, conducting rough turning on a formed gear, carrying out heat treatment on a rough turned piece, conducting finish turning until a reserved balance is achieved, and obtaining a qualified product. By means of the temperature cooling precision forming method of the big modulus high boss bevel gear, the utilization rate of materials is improved, die cost is saved, the mechanical property of products is good, the surface dimensional precision of the products is high, and the method is suitable for mass production.

Description

technical field [0001] The invention relates to the fields of machining of bevel gears with less cutting allowance, heat treatment of gears, and cold extrusion of metals, and mainly relates to a warm-cold precision forming method for bevel gears with large modulus and high bosses. Background technique [0002] There are two main types of forming methods for high-boss bevel gears: the first one is the traditional machining method to process the tooth profile. This method mainly adopts a relatively precise processing machine tool, through mechanical cutting. This method has many processing steps, long processing time, and low efficiency, so it is not suitable for mass production of bevel gears; during the processing, due to cutting, A large amount of material will inevitably be wasted, resulting in a sharp increase in material costs; and the gears that have been cut will cut off the metal fiber structure, thereby reducing the mechanical properties of the gears. This effect is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/14B21J5/06B21J13/02
Inventor 汪长开韩兵
Owner HUOSHAN HUINENG AUTO PARTS MFG
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