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Differential case inner cavity spherical surface machining method

A differential housing and spherical surface processing technology, which is applied in metal processing equipment, manufacturing tools, turning equipment, etc., can solve the problems that the surface roughness value is difficult to meet the technical requirements, easy to appear vibration tool marks, and large penetration length, etc. , to achieve the effect of small surface roughness, stable product quality and easy guarantee of position

Inactive Publication Date: 2015-08-12
HENGYANG FENGSHUN AXLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the spherical surface of the inner cavity of the differential case uses an indexable tool, which extends from the small end hole into the inner cavity. Through programming, the tool can be moved along the X-axis and Z-axis Directional feed is processed through two steps of rough machining and finishing. During processing, due to the small diameter of the tool bar, the long insertion length, and the poor rigidity of the tool bar, the processed spherical surface is prone to tool shock marks. The surface roughness value is difficult to meet the technical requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A method for processing the spherical surface of the inner cavity of a differential case provided by the present invention, the steps are as follows:

[0015] 1. First install the differential case on the fixture, install the left and right forming tool bars on the CNC machining machine tool, and then put the differential case processing fixture into the machine tool, install and fix it, and adjust it well.

[0016] 2. The spherical surface of the inner cavity of the differential case is roughly machined with a forming tool. Firstly, the forming tool is placed in the side hole by the manipulator, and the actual position of the tool rod is adjusted, and a trial run is performed through programming; then both sides pass through the hydraulic pressure of the machine tool. The cylinders are respectively fed into the ejector rods of the forming tool from the shaft holes on both sides of the planetary gear in the differential case, and pushed into the middle hole of the formin...

Embodiment 2

[0021] A method for processing the spherical surface of the inner cavity of a differential case provided by the present invention, the steps are as follows

[0022] 1. First install the differential case on the fixture, install the left and right forming tool bars on the CNC machining machine tool, and then put the differential case processing fixture into the machine tool, install and fix it, and adjust it well.

[0023] 2. The spherical surface of the inner cavity of the differential case is finished with a forming tool. Firstly, the forming tool is placed in the side hole by the manipulator, and the actual position of the tool rod is adjusted, and the trial run is performed through programming; then both sides pass through the hydraulic pressure of the machine tool The cylinders are respectively fed into the ejector rods of the forming tool from the shaft holes on both sides of the planetary gear in the differential case, and pushed into the middle hole of the forming tool. ...

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PUM

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Abstract

A differential case inner cavity spherical surface machining method includes the following steps that firstly, a differential case is installed on a fixture, and then a differential case machining fixture body is placed on a machine tool, installed and well fixed; secondly, rough machining is carried out on differential case inner cavity spherical surfaces through a forming cutter, and after the forming cutter is placed in a side face hole through a manipulator, forming cutter ejector rods are conveyed into shaft holes in the two sides of a planetary gear in the differential case through a hydraulic cylinder of the machine tool, and are ejected into a middle hole of the forming cutter; thirdly, the ejector rod on one side retreats, the ejector rod on the other side moves forwards, and the spherical surface on one side is machined firstly, after machining, a machined cutter rod on one side moves forwards, a cutter rod to be machined on the other side retreats, and a spherical surface cutter moves to the side where the spherical surface to be machined is located to machine the spherical surface; fourthly, the forming cutter is replaced with a finish machining cutter, and finish machining is carried out according to the second step and the third step. The location degree is easy to guarantee after machining, surface roughness is small, no tool marks exist, product quality is stable, shape changing speed is high, production efficiency is high, and operation is convenient.

Description

technical field [0001] The invention relates to a differential processing technology in the field of mechanical processing, in particular to a processing method for a spherical surface of an inner cavity of a differential case. Background technique [0002] Now the spherical surface of the inner cavity of the differential case adopts an indexable tool, which extends from the small end hole into the inner cavity. Through programming, the tool is fed along the X-axis and Z-axis at the same time. After two steps of rough machining and finishing, During processing, due to the small diameter of the cutter rod, the large length of penetration, and the poor rigidity of the cutter rod, the processed spherical surface is prone to tool vibration marks, and the surface roughness value is difficult to meet the technical requirements. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and provide a m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B1/00B23B5/40
CPCB23B1/00B23B5/40
Inventor 刘登发
Owner HENGYANG FENGSHUN AXLE CO LTD