Machining process for guaranteeing precision of external circle of shaft sleeve

A processing method and precision technology, which is applied in the field of processing to ensure the accuracy of the outer circle of the shaft sleeve, can solve problems such as difficulty in ensuring the processing quality of the shaft sleeve, shape and position accuracy, and center distance difference, and affect the normal use of parts, so as to achieve easy use and promotion, The effect of ensuring machining accuracy

Active Publication Date: 2012-07-18
CRRC QISHUYAN CO LTD
View PDF4 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem that the existing shaft sleeve processing method is difficult to ensure the processing quality of the shaft sleeve, which leads to the difference in journal size, sha

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 Construction

[0009] A processing method for ensuring the accuracy of the outer circle of a shaft sleeve. The processing method includes the following steps: the processing method includes the following steps: cast steel blank→drawing a processing line on the blank→roughly milling each mounting surface, positioning surface and arc with a gantry milling machine →Use a vertical lathe to rough turn the front journal, inner hole and rear end inner hole →Casting defect inspection, flaw detection and welding repair →Stress relief annealing →Use a vertical lathe to semi-finish the front journal, finish turning inner hole and rear end inner Hole→mark machining and reference line on each surface→finish milling and drilling holes and screw holes on each mounting surface, positioning surface and surface with pentahedral machining center, and finish milling arc surface at the same time→mark each end surface hole, screw hole, shaft Neck oil hole position line→Drill end face holes, screw holes and oil hol...

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

No PUM Login to view more

Abstract

The invention relates to the technical field of a shaft sleeve machining process, in particular to a machining process for guaranteeing the precision of an external circle of a shaft sleeve. The machining process comprises the following steps of: casting a steel piece blank; roughly milling each mounting surface, each positioning surface and each circular arc by using a planer type milling machine; roughly turning a front shaft neck, an inner hole and a back-end inner hole by using a vertical lathe; carrying out semi-precisely turning on the front shaft neck and precisely turning the inner hole and the back-end inner hole by using a vertical lathe face; by utilizing a pentahedron machining center, precisely milling and drilling each mounting surface, each positioning surface and holes and screw holes on faces, and precisely milling an circular-arc face; utilizing a rocker arm drill and a horizontal milling machine to ream a mounting hole circular arc and a plane lug boss; and utilizing an external circle milling bed to mill the external circle of the front end shaft neck. The machining process for guaranteeing the precision of the external circle of the shaft sleeve, disclosed by the invention, effectively ensures that the machining precision of the shaft neck is effectively ensured and the deformation amount of the shaft neck is controlled within 0.005 mm; and the machining process is suitable for machining parts with the similar structure, so that the machining process is easy to use and popularize.

Description

technical field [0001] The invention relates to the technical field of a processing method for a shaft sleeve, in particular to a processing method for ensuring the precision of the outer circle of a shaft sleeve. Background technique [0002] The shaft sleeve, also known as the hollow shaft sleeve, is a safety-critical part of the running part of a diesel locomotive. Bearings and axle transmission gears are installed on the outer journal of the shaft sleeve. The shaft sleeve is cast steel blank, and the material is ZG40Cr. The shaft sleeve has a special structural shape, one end is a semi-open cylinder and a parallel fork plane structure, and the other end is a hollow thin-walled shaft sleeve. The overall structural rigidity of the part is poor, and the shape and position accuracy, size and size of the outer circle of the shaft sleeve are relatively high, which is the key quality characteristic of the part. Specific requirements: the outer diameter of the journal is ￠380 ...

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
IPC IPC(8): B23P15/00
Inventor 路亚光周建江
Owner CRRC QISHUYAN CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap