A method and device for automatic composite motion finishing of integral blisk blades

Abstract

The invention discloses an automatic compound motion and finishing method and device for blades of an integral turbine wheel. The automatic compound motion and finishing method comprises the following steps: according to the finishing milling state of the blades of the integral turbine wheel, the condition of mutual shielding of the blades and the material state of parts, at first, determining the types of abrasives and auxiliaries, the placing attitude of the integral turbine wheel parts and the independent motion parameters of the parts during the finishing process; then, determining the related parameters of the compound motion through the improvement on the surface state of a blade stagnant zone; and through measuring and compensating an excellent blade openness zone, finally realizing the roughness class improvement and the accurate forming of the zones on the surfaces of the blades of the integral turbine wheel. The automatic compound motion and finishing method and device have the advantages as follows: 1) manual polishing is replaced, and the automatic forming and manufacturing of a product is realized; 2) the processing efficiency is improved by 80%; 3) the consistency of the final states of the blades is ensured, and the qualified rate of the product is improved by 75%; and 4) the service cycle of the product is effectively prolonged, so that the comprehensive cost of the product is reduced.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to an automatic composite motion finishing method and device for integral blisk blades. Background technique [0002] With the urgent demand for high-performance indicators of power output equipment such as propellers, blowers, steam turbines, and compressors, parts with various overall structures and complex shapes are widely used. For integral blisks and impeller structural parts, whether the final processing state of the airfoil profile meets the requirements of the design drawings has an extremely significant impact on its performance, or it can be said to directly affect the working performance and use of the equipment. life. In order to improve the performance of the power output equipment, the blades of the integral impeller and the blisk structure parts are mostly non-straight-grained airfoils, and the torsion is relatively large, and the radius of the leading and trail...

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Problems solved by technology

This will greatly shorten the life cycle of the product

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