Vibration finishing protection device for blades

Abstract

The invention provides a vibration finishing protection device for blades. By means of the vibration finishing protection device, the problems that in the process of carrying out vibration finishing on existing two machine blades, the sharp corners of the blades are rounded by finishing grinding materials, consequently, R corner overproof of the blade tips is caused, and quality is influenced aresolved. The vibration finishing protection device comprises a blade root protection portion and a blade tip protection portion. The blade root protection portion cooperates with blade tips wrapping blade roots, and the top face of the blade root protection portion is flushed with the top faces of edge plates of the blades. The blade tip protection portion comprises air inlet side protection steelbars, blade top protection steel bars and air outlet side protection steel bars, all of which are connected in sequence, and the ends of the air inlet side protection steel bars and the air outlet side protection steel bars are fixedly connected to the blade root protection portion. The shapes of the air inlet side protection steel bars, the blade top protection steel bars and the air outlet sideprotection steel bars are consistent with those of the blade body air inlet side outlines, the blade top outlines and the blade body air outlet side outlines of the blades, and clearances ranging from5mm to 10 mm are left between the air inlet side protection steel bars, blade top protection steel bars and air outlet side protection steel bars and the blade body air inlet sides, blade tops and blade body air outlet sides of the blades.

Description

technical field [0001] The invention relates to the field of two-machine blade processing, in particular to a vibration and light decoration protection device for blades. Background technique [0002] For aero-engine blades and gas turbine compressor blades (i.e., two-engine blades), in order to meet the overall installed efficiency, the R angle requirements of the blade tips are very high, that is, as figure 1 The shown R angles of blade top 1, blade air inlet edge 2, and blade air outlet edge 3 are required by the customer to be less than R0.38. smaller. The blades of the two machines need to be vibrated and polished during the processing process. In the process of vibrating and polished, only the top surface 4 of the edge plate and the blade body are polished, and the blade root 5 does not need to be vibrated and polished. In the process of vibrating and polishing the blades of the two machines, the polishing abrasives will round the sharp corners of the blades, resulti...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the technical problem that the sharp angle of the blade will be rounded by the polishing abrasive in the process of vibrating and polishing the blades of the existing two machines, which will cause the R angle of the blade tip to be out of tolerance and affect the quality, the invention provides a vibrating light for the blade. Decoration protection device, which can protect the R angle of the blade tip during the vibration and polishing process, and avoid the R angle from being out of tolerance

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