Abrasive belt grinding device applicable to inner and outer cambered surfaces of blades of aerospace blisk

Abstract

The invention discloses an abrasive belt grinding device applicable to inner and outer cambered surfaces of blades of aerospace blisk. An X axis transverse feed mechanism, a Y axis transverse feed mechanism and a Z axis longitudinal feed mechanism form a grinding head feed mechanism; an A axis deflection motor, an A axis deflection bracket, a B axis motor, a gear train bracket, a C axis motor, a C axis revolving bracket and the like form a position adjusting mechanism of the grinding head. The abrasive belt grinding device provided by the invention guarantees rigidity of a grinding head mechanism and a work piece clamping mechanism through rational distribution of the grinding head feeding, the position adjustment of the grinding head and the position and angle adjustment of the work piece and through combination of space in six degrees of freedom by a short transmission chain; a contact wheel and an abrasive belt can cut into a narrow gap between two blades of the blisk, so as to ensure the contact between the contact wheel and the work piece to be stable when the contact wheel rotates at a high speed; so that the abrasive belt grinding device can improve the work efficiency, and meanwhile, dimensional accuracy of complex cambered surface of the work piece in processing can be guaranteed, the quality of the molded surface is ensured, the rate of qualified products is improved, the labor intensity of workers is reduced and the management and production costs are lowered.

Description

technical field [0001] The invention belongs to the technical field of grinding machines, and in particular relates to an abrasive belt grinding device suitable for the inner and outer arc surfaces of integral blisk blades in aerospace. Background technique [0002] The blisk is a key component of a new generation of aero-engines. Compared with traditional aero-engine blades, its application is conducive to the improvement of aero-engine performance, simplification of structure, reduction of mass, and improvement of reliability and durability. The polishing process, as the last process of blisk processing, directly affects its surface quality and aerodynamic performance. Due to the complex structure of the blisk, its material is also difficult to process, which brings great difficulties to the polishing process of the blisk. Although polishing methods such as electron beam polishing methods and electrolytic polishing methods have appeared in our country, their degree of aut...

AI Technical Summary

Problems solved by technology

However, due to the small gap between the blades of the integral blisk, the existing abrasive belt grinder uses the grinding head to contact the workpiece. Due to space constraints, it is difficult for the grinding head to penetrate into the blade gap of the integral blisk

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