A bushing trimming tool for automobile rack and pinion steering gear

Abstract

The invention discloses a repairing tooling for automobile gear rack steering machine liners. The repairing tooling comprises a supporting rod, wherein the supporting rod is sequentially provided with a guiding block, accessory cutters, main cutters and a shaping and grinding head which extend into a liner from a top end to a tail end. Through the adoption of the structure, the repairing tooling disclosed by the invention has the advantages: 1, the cross-sectional diameter of the guiding block is smaller than that of the liner, and the guiding block is firstly mounted in the liner so as to be positioned; 2, in order to guarantee that the liner structure is not damaged during cutting, and reduce the loss of the cutters during cutting, the repairing tooling is provided two cutting layers, the accessory cutters are arranged on the first layer, the diameter of an annular ring formed by the accessory cutters is slightly larger than the inner diameter of the liner, the main cutters are arranged on the second layer, and the diameter of an annular ring formed by the main cutters is the size as needed; 3, the shaping and grinding head performs rotating friction on the inner wall of the cut liner, so that the inner wall of the liner is smooth and clean, and final using requirements are met.

Description

technical field [0001] The invention relates to the technical field of an automobile rack and pinion steering gear, in particular to an automobile rack and pinion steering gear bushing trimming tool. Background technique [0002] The bushing is an auto part, installed between the rack and the limit sleeve, it is used to support the radial force on the rack when it is moving, and to ensure that there is no gap in the radial direction of the rack rod, so as to achieve When the vehicle is running on uneven roads, there will be no noise or abnormal noise due to the impact of bumps. [0003] The materials of such bushings for supporting rack rods used in existing automotive rack and pinion steering machines are generally engineering plastics, and the processing technology is mostly injection molding. The size of the injection molded products is likely to fail to meet the requirements, and the control accuracy is relatively poor, which cannot guarantee assembly. and usage require...

AI Technical Summary

Problems solved by technology

[0003] The materials of such bushings for supporting rack rods used in existing automotive rack and pinion steering machines are generally engineering plastics, and the processing technology is mostly injection molding. The size of the products produced by injection molding is likely to fail to meet the requirements, and the control accuracy is relatively poor, so assembly cannot be guaranteed. and usage requirements

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