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Mechanical working method for inner spline nylon coating

A technology of mechanical processing and nylon coating, applied in metal processing equipment, petroleum industry, manufacturing tools, etc., can solve the problems of inaccurate orientation, unqualified size, scrapped parts, etc., and achieve simplified procedures, excellent lubricity, and cutting accuracy high effect

Inactive Publication Date: 2005-05-18
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to inaccurate guidance, there is still the phenomenon of one-sided cutting, that is, the cutting amount on one side is too large, while the cutting amount on the other side is too small, and the size is unqualified, which also makes the parts scrapped.

Method used

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  • Mechanical working method for inner spline nylon coating
  • Mechanical working method for inner spline nylon coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] For the sprayed 9-ton truck transmission shaft sleeve, use such as figure 1 The size of the machining tool is determined according to the size of the spline pre-hole and the empirical thickness of the coating, the shaft diameter of the leading part is optimally designed A=51.8, and the front length of the first tooth is B=80; in order to meet the process requirements, the spline manufacturing The dimensions are strictly controlled as measuring rod distance Ma=65.5 and measuring rod diameter dp=6.212; in addition, due to the limitation of product and machine tool processing range, there is a strict requirement on the tool length, which is determined to be 350mm. Install on the press, first measure the levelness, concentricity and verticality parameters of the tool installation to ensure the positioning accuracy, start processing, do not use water-based lubricating medium, dry cutting, processing speed is 1 piece / 20 seconds, batch processing After inspection and analysis,...

Embodiment 2

[0013] The sprayed 9-ton truck transmission shaft sleeve is installed and positioned on the press using the processing tool described in Example 1 of this patent. First, measure the level, concentricity and verticality parameters of the tool installation to ensure the positioning accuracy, and start processing , using the water-based lubricating medium described in this patent to cast, both using a soluble oil containing 65 parts of low-viscosity mineral oil; 5 parts of molecules containing C 16 ~C 18 Natural or synthetic fatty acid amine salt; 12 parts of sodium petroleum sulfonate as antirust agent; 4 parts of alkylphenol polyoxyethylene ether coupling agent; 0.5 parts of trace moisture as stabilizer. First make a concentrated solution, and then dilute it with distilled or deionized water at a ratio of 1:20 to become a working solution. The processing speed is 1 piece / 20 seconds. Inspection and analysis are carried out after batch processing, and it is found that the yield ...

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Abstract

The present invention relates to the mechanical working method of inner spline nylon coating of automobile part. Cutter of tool steel and in size corresponding the part size is first machined, and proper lubricating medium is selected for lubrication during machining. The machining cutter has the features of high efficiency, accurate guide, high machining precision and flexible working. The lubricating medium has excellent lubricating performance, easy cleaning, and low cost.

Description

Technical field: [0001] The invention relates to a machining method for inner spline nylon coating. Background technique: [0002] The spline bushing cooperates with the spline shaft to transmit power. In order to reduce the vibration and resonance during transmission, the dynamic balance of the transmission system is required to be better, that is, the coaxiality of the spline bushing and the spline shaft is required. In addition, if the coating is uneven, the force will be uneven, which will easily cause partial peeling of the coating and damage the entire coating. Therefore, the uniformity of the inner wall of the spline sleeve after coating is required to be better. The usual practice is to form a thicker coating than the process requirements in spraying, relying on special tools to reduce the size of the coating to the specified thickness to meet the size requirements during assembly. The coating is made of nylon material. Nylon is an elastic body with a low melting p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D43/02C10M101/00
Inventor 翟洪宾王梅李先贵张克金张立长楚兴山赵本灿姜永顺
Owner CHINA FIRST AUTOMOBILE