Elastic buffer device for machining shaft parts of automobile steering gear

Abstract

The invention provides an elastic buffering device applied to an automobile steering engine and used for shaft part machining. The elastic buffering device comprises a part clamping tooling and a main shaft height adjusting sleeve, wherein the main shaft height adjusting sleeve is equipped with an elastic buffering unit in a connected manner; one end of the elastic buffering unit is connected with the main shaft height adjusting sleeve; and the other side of the elastic buffering unit is connected with the part clamping tooling. The elastic buffering device provided by the invention has the advantages that when a shaft part is machined on a machine tool, the instant impact force generated during the contact between the shaft part and a cutter is subjected to buffering and energy absorption through buffering cushion blocks of the elastic buffer unit at first; then, the instant impact force is transferred to buffering spring sheets of the elastic buffering unit for buffering and energy absorption again; and finally, the instant impact force enters the main shaft height adjusting sleeve and a machine tool main shaft through a circular column, thereby avoiding or buffering the impact caused by the sudden stress, protecting the cutter from damage, retarding the abrasion, caused by the impact, of the machine tool main shaft, prolonging the life of the machine tool main shaft, and improving the machining quality of the to-be-machined part to a certain extent.

Description

technical field [0001] The invention relates to a protective device for machining parts, in particular to an elastic buffer device for machining shaft parts of an automobile steering gear, which relieves the impact force at the moment of contact between a tool and a part. Background technique [0002] At present, the shaft parts of automobile steering gear are usually processed on CNC machine tools. During the processing, especially in the case of discontinuous cutting, because the existing machine tool design is to directly fix the parts clamping tooling at the height of the machine tool spindle On the adjustment sleeve, the shaft parts are clamped and rotated by the parts clamping tool, and then come into contact with the tool. At the moment of contact, the stress caused by the rotating centrifugal force of the part and the material hardness of the tool itself will be caused by the sudden interaction of these two forces. Under the circumstances, it may cause damage to the ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the damage of the tool caused by the contact impact force of the shaft parts of the automobile steering gear in the prior art, the quality of the shaft parts affected by the impact force, and the impact and vibration of the machine tool spindle due to sudden impact force aggravate the damage of the machine tool spindle For the problem of wear and tear, the present invention provides an elastic buffer device for the processing of shaft parts of automobile steering gear. By changing the prior art, the parts clamping tooling is directly fixed on the height adjustment sleeve of the machine tool spindle, and the shaft parts are covered by parts. The structure of the clamping tool is clamped and rotated, and an elastic buffer device is added between them, which realizes the indirect connection between the part clamping tool and the height adjustment sleeve of the main shaft, and solves various problems existing in the prior art

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