Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for processing high-accuracy non-standard-size hole of bush

A processing method and high-precision technology, applied in the field of mechanical processing, can solve the problems of high processing cost and poor processing accuracy, and achieve the effect of low processing cost, reduced processing cost and guaranteed processing accuracy

Inactive Publication Date: 2009-11-11
HARBIN
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: poor processing accuracy and high processing cost

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, processing High-precision non-standard size holes.

[0025] 1. Rough machining holes: rough machining of high-precision non-standard size holes for bushings on a lathe, and accurately measure the rough machining hole diameter Φ0 = 3.95mm;

[0026] 2. Steel ball reaming;

[0027] 2.1. Reaming for the first time; clamp the bushing with a fixture on the punching machine, and select a steel ball with a diameter of Φ1=3.96mm for the first reaming;

[0028] 2.2. Repeat the reaming for 6 times until the diameter of the punching steel ball is Φ6=4.01mm;

[0029] 3. Heat treatment; the bushing after steel ball reaming is quenched, and the hardness after treatment is HRC=58;

[0030] 4. Grinding holes; re-clamp the bushing with a fixture on the punching machine, select a grinding hole steel ball with a diameter of Φ7=Φ4.02mm to grind the hole; measure the diameter of the high-precision non-standard size hole of the bushing after grinding the hole is 4.025mm mm,...

Embodiment 2

[0031] Embodiment 2, processing High-precision non-standard size holes.

[0032] 1. Rough machining holes: rough machining of high-precision non-standard size holes for bushings on a lathe, and accurately measure the rough machining hole diameter Φ0 = 6.70mm;

[0033] 2. Steel ball reaming; repeat 6 times of reaming until the diameter of the punching steel ball is Φ6=6.76mm;

[0034] 3. Heat treatment: Quenching treatment is carried out on the bush after steel ball reaming, and the hardness after treatment is HRC=60;

[0035] 4. Grinding holes; choose grinding steel balls with diameters of Φ7=Φ6.77mm and Φ8=Φ6.78mm to grind holes twice respectively; after grinding holes, measure the diameter of the high-precision non-standard size hole of the bushing to be 6.785mm, which meets the Tolerance requirements, finished processing.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a processing method for a high-precision non-standard size hole of a bush, which belongs to the mechanical processing technology, and relates to a processing method for a high-precision non-standard size hole of a bush. It is characterized in that the processing steps are as follows: rough machining holes; steel ball hole reaming; heat treatment; grinding holes. The invention has high processing precision and low processing cost.

Description

technical field [0001] The invention belongs to mechanical processing technology, and relates to a processing method for high-precision non-standard size holes of bushings. Background technique [0002] There are often non-standard holes in the inner hole of the bushing in the drilling template and the drilling jig, and the diameter of the hole is in the range of 4.1 to 8.9mm. The existing method of processing non-standard holes is to make a special inner grinding wheel mandrel to meet the non-standard Hole size, but often the internal grinding wheel is squeezed and crushed by the hole and the mandrel during the internal grinding process. It is necessary to make a number of special inner grinding wheel mandrels for replacement to complete the processing. Its disadvantages are: poor processing accuracy and high processing cost. Contents of the invention [0003] The object of the present invention is to provide a method for accurately processing the non-standard inner hole...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B23P17/00B21D28/24
Inventor 郭连涛
Owner HARBIN