Special machine for pin hole drilling, end face boring and main pin hole boring during one-time machining of STR steering knuckle

Abstract

The invention relates to a special machine for pin hole drilling, end face boring and main pin hole boring during one-time machining of an STR steering knuckle. A first feeding machining mechanism and a second feeding machining mechanism are mounted on a machine tool base in a guide sliding manner; a clamp is mounted on a sliding table between the first feeding machining mechanism and the second feeding machining mechanism; a first machine base is fixed to the machine tool base, and a first rotating disc is connected with the first machine base; a first spindle is fixed to the middle portion of the first rotating disc, the first spindle and the first rotating disc share the same axis, a pin hole drill bit is fixed to the front end of the first spindle, and a first main pin hole rough boring milling cutter is fixed to the outer circle of the front end of the first spindle; a first main pine hole fine boring cutter is fixed to the outer circle of the middle of the first spindle; a chamfering cutter is fixed to the outer circle of the rear portion of the first spindle, an end face milling cutter is fixed to the end face of the first rotating disc, and the end face milling cutter can be telescopically adjusted in a radial manner on the first rotating disc. The number of working steps of pin hole machining can be increased through one-time clamping, the positioning basis is unified, the accumulation error is reduced, and the pin hole location degree is ensured.

Description

technical field [0001] The invention belongs to machine tool equipment, in particular to a special machine for one-time processing of STR steering knuckle drilling pin hole boring end face and king pin hole. Background technique [0002] The steering knuckle is one of the main parts on the steering axle of the car, which can make the car run stably and transmit the driving direction sensitively. The function of the steering knuckle is to bear the front load of the car, support and drive the front wheel to rotate around the kingpin to make the car turn. The shape of the steering knuckle is relatively complicated, and the structural characteristics of four types of parts such as the shaft, the sleeve, the disc ring, and the yoke are concentrated. The steering knuckle is composed of three major parts: the supporting journal, the flange, and the yoke. The structural shape of the supporting journal is a stepped shaft, and its structural characteristics are a body of revolution co...

AI Technical Summary

Problems solved by technology

[0003] At present, when processing STR steering knuckles, to complete the processing of one product, it needs to be processed on multiple machine tools, resulting in serious deviations in the position error of the STR steering knuckle processing process. At the same time, the pin hole on the STR steering knuckle is a The pin hole of the chamber bracket plays an orienting role, and the accuracy of its position relative to the king pin hole directly affects the assembly efficiency of the vehicle, so the quality of its processing directly affects the braking effect of the air chamber

Therefore, the traditional STR steering knuckle processing equipment has high labor intensity and low production efficiency, which increases the production cost of the enterprise, and when processing on different machine tools, there are clamping errors, the precision of the processed products is not high, and it does not need to meet the needs of customers.

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