A special machine tool for rear axle housing boring

Abstract

The invention discloses a special machine tool for boring rear axle housings, which includes a bed and a fixture. The fixture includes an intermediate positioning mechanism for positioning the pipa holes of the rear axle housing arranged in the middle of the upper surface of the bed, and symmetrically arranged on the intermediate positioning mechanism. The centering clamping mechanism on both sides, the middle positioning mechanism includes the clamping body and the floating plate arranged on the clamping body, and the centering tensioning mechanism is arranged in the floating plate; the invention uses the V-shaped block of the centering clamping mechanism to carry out rear axle The two ends of the shell are clamped to perform axial positioning and eliminate the positioning error caused by the machining error of the outer circle of the shaft at both ends; The end face of the pipa hole is supported, and the support nails float with the floating plate to eliminate the processing error of the end face of the pipa hole; the rear axle housing is accurately positioned and clamped to ensure that the bearing hole of the boring bridge tube is concentric with the outer circle.

Description

technical field [0001] The invention relates to the technical field of machining equipment, in particular to a special machine tool for boring a rear axle housing. Background technique [0002] The rear axle refers to the component of the rear drive shaft of the vehicle power transmission. It consists of two half axles to form the rear axle, which can implement the differential motion of the half axles. At the same time, it is also a device used to support the wheels and connect the rear wheels. The rear axle housing boring machine mainly uses V-shaped blocks for positioning, and then uses hydraulic clamps to clamp the bridge tubes at both ends of the rear axle housing, and perform boring processing at both ends. Due to the size deviation of the bridge tubes, it is easy to cause poor positioning. Accurate, resulting in the coaxiality error and axial symmetry error of the bridge tubes at both ends of the rear axle housing, and the machining accuracy cannot be guaranteed. SU...

AI Technical Summary

Problems solved by technology

[0003] Technical purpose: Aiming at the large positioning error and low machining accuracy of existing rear axle housing processing machine tools, the invention discloses a rear axle housing that eliminates the positioning error of the pipa hole and the bridge tube and ensures that the bearing hole of the bridge tube is concentric with the outer circle Boring special machine tool

Images