Device for correcting out-of-roundness of carburized and quenched gear ring and correction method

Abstract

The invention discloses a device for correcting the out-of-roundness of a carburized and quenched gear ring, which comprises an outer support head, a wedge pin and an inner support head, wherein the longitudinal section of one end part of the outer support head is rectangular, a small rectangular hole is formed on the upper surface of the end part, a large rectangular hole communicated with the small rectangular hole is formed in the end part, and the cross section of the other end part of the outer support head is in the shape of a wedge; the longitudinal section of one end part of the innersupport head is rectangular, the end surface is an oblique end surface, the end part is correspondingly matched with the large rectangular hole in one end part of the outer support head, and the cross section of the other end part of the inner support head is in the shape of the wedge; and the wedge pin is inserted into the small rectangular hole on the upper surface of one end part of the outer support head, the vertical side surface of the wedge pin is jointed with the bottom surface of the large rectangular hole in the end part of the outer support head, and the oblique side surface which is opposite to the vertical side surface is jointed with the oblique end surface of one end part of the inner support head. The invention further discloses a correction method for correcting the out-of-roundness of the carburized and quenched gear ring. By adopting the device and the method, the equipment investment and the manufacturing cost are greatly lowered, the energy is saved, the emission is reduced, and the production efficiency is effectively improved.

Description

technical field [0001] The invention belongs to a device and a correction method for machining deformation of mechanical parts, in particular to a device and a correction method for correcting the out-of-roundness of a carburized and quenched ring gear, which are used for correcting the heat treatment deformation of the inner ring gear of the wheel edge of an automobile axle. Background technique [0002] The wheel ring ring is an important part of the wheel differential of heavy-duty and special axles. In order to meet the performance requirements, the design of the inner ring gear is processed by low-alloy structural steel forgings, carburized, quenched and tempered after gear making, and the requirements for out-of-roundness of the inner ring gear are relatively high (generally ≤0.20mm). At present, the processing of the inner ring gear generally adopts carburizing, quenching and tempering, and then the out-of-roundness of the heat-treated inner ring gear is measured and ...

AI Technical Summary

Problems solved by technology

Although this kind of processing scheme and method is widely used, it has the following defects: (1) In addition to the necessary carburizing furnace, the carburizing and quenching process also needs to be equipped with quenching presses and controllable atmosphere heating furnaces, which requires a large investment; (2) ) Due to the heat treatment again, the control of the metallographic structure of the workpiece brings risks; (3) high energy consumption and high processing costs; (4) long production cycle

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