Machining technology of cross-country vehicle steering knuckle

Abstract

The invention relates to a machining technology of a cross-country vehicle steering knuckle, the machining technology is characterized by comprising the following steps of: S1, a main pin hole, a bracket surface, a gear opening surface, a central hole and a branch pin hole of the cross-country vehicle steering knuckle are roughly machined by adopting a first horizontal machining center with an exchangeable workbench; S2, a numerical control turning and milling composite machine tool is adopted for machining all stages of journal machining surfaces, disc surface threads and journal end surfaces at a time; and S3, a second horizontal machining center with an exchangeable workbench is adopted for conducting finish machining on the main pin hole, the bracket surface, the gear opening surface, the central hole and the branch pin hole through journal positioning machined in the step S2. The machining technology has the beneficial effects that the production cost input is low, and the blindness of equipment investment can be reduced through the relatively concentrated technology mode; and logistics links among procedures are greatly simplified, investment is conducted on a production line in batches according to types of production parts and capacity requirements, and investment risks are reduced.

Description

technical field [0001] The invention relates to the field of off-road vehicle steering knuckles, in particular to a processing technology for off-road vehicle steering knuckles. Background technique [0002] The steering knuckle is the core part of the intersection of the axle, suspension and steering system transmission mechanism, mainly for bearing and steering, that is, supporting the weight of the car body, transmitting the steering torque and bearing the braking torque of the front wheel; therefore, the steering knuckle There are requirements in terms of strength, impact resistance and reliability, so the design of the steering knuckle is usually over-designed, the position of the steering knuckle is special, and there are many connecting parts. In order to avoid movement interference, the design of the steering knuckle will be limited by space. As a result, weak parts and stress concentration parts appear, resulting in steering knuckle strength, fatigue and other perfo...

AI Technical Summary

Problems solved by technology

[0012] That is to say, when the CNC machine tool is performing CNC machining, the distributed process route is used to divide the product into multiple processes, and each process arranges a single fixture for a certain part of the product, that is, a single process only completes the processing of a single part. For small and medium batch production, CNC machining in this way can fully meet the requirements, but if it is mass production, CNC equipment needs to be added for processing, which increases investment.