Micro arc ion plating surface treatment method for flexible gear for harmonic reducer

A technology of micro-arc ion plating and harmonic reducer, which is applied in the field of material manufacturing, can solve problems such as poor precision, insufficient product durability, and low fatigue and wear life of gear teeth, so as to avoid metal droplets, reduce wear and fatigue damage , the effect of low friction coefficient

Inactive Publication Date: 2016-11-16
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of insufficient product durability and poor precision caused by the low fatigue and wear life of the gear teeth of the existing reducer. The flexible gear has a self-lubricating function and is use...

Method used

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  • Micro arc ion plating surface treatment method for flexible gear for harmonic reducer
  • Micro arc ion plating surface treatment method for flexible gear for harmonic reducer

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Experimental program
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Embodiment Construction

[0022] The specific implementation is as follows:

[0023] A micro-arc ion plating surface treatment method for a flexible gear used in a harmonic reducer. An amorphous carbon coating with a thickness of 0.3 μm to 5 μm is prepared on the surface of the flexible gear. The coating has a hardness of 1200HV to 2000HV and a friction coefficient of 0.08 to 0.20, including Follow the steps below:

[0024] Step 1: Vacuum

[0025] First, take the flexible gear to be processed and clean it through ultrasonic dewaxing and degreasing, then use 0.5MPa~5MPa high-pressure air to dry the cleaned flexible gear, put the dried flexible gear into the four-target micro The arc ion plating equipment is placed in the vacuum chamber of the arc ion plating equipment and installed on the work plate. Two chromium targets and two graphite targets are placed in the vacuum chamber, and the vacuum chamber is vacuumed to make the vacuum chamber reach less than 3.0×10 -3 The vacuum degree of Pa is to pass a...

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Abstract

The invention discloses a micro arc ion plating surface treatment method for a flexible gear for a harmonic reducer. The method comprises the following implementation steps that firstly, the cleaned and dried flexible gear is placed into a four-target micro arc ion plating device vacuum chamber; and after vacuum pumping is conducted, the four-target micro arc ion plating device vacuum chamber is inflated with argon, after surface impurities are removed through ion sputter cleaning, micro arc ion plating is conducted, certain electrical parameters are applied to a chromium target, a graphite target and the flexible gear, a pure chromium bottoming layer, a transition layer and an amorphous carbon work layer are sequentially deposited, and the vacuum chamber air pressure and film plating time are controlled. By means of the method, the reducer is endowed with the properties of high speed, high load bearing, low friction, abrasion resistance and self-lubrication, and therefore the technological content of domestic reducers is improved, and the service life of the domestic reducers is prolonged.

Description

technical field [0001] The invention relates to the field of material manufacturing, in particular to a method for treating the surface of a flexible gear with micro-arc ion plating for a harmonic reducer. Background technique [0002] As an important basic part of precision machinery, the reducer is widely used in the fields of industrial robots, CNC machine tools, aerospace and other precision machinery drive control. For example, among the production costs of the four core components of industrial robots, reducers account for the largest proportion (more than 30%). However, the domestic market is basically monopolized by "foreign goods". The reason is that the product has insufficient durability and poor precision due to the low fatigue and wear life of the gear teeth of the domestic reducer. [0003] The micron controllable film layer of ion plating surface treatment has excellent tribological properties, which is suitable for the final treatment process of wear-resista...

Claims

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Application Information

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IPC IPC(8): C23C14/06C23C14/16C23C14/34
CPCC23C14/0605C23C14/165C23C14/345C23C14/3464C23C14/3485
Inventor 范国栋程欢欢李洪涛
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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