The modeling method of k-groove of ternary blade

Abstract

The invention discloses a molding method for a K-shaped bevel of a ternary blade, which belongs to the technical field of centrifugal compressors. It includes: obtaining the parameters of the K-shaped groove of the three-dimensional blade; based on the parameters of the K-shaped groove of the three-dimensional blade, applying software to construct the twisted groove model of the three-dimensional impeller with three-dimensional blades; Groove model, carry out numerical control programming, and obtain the milling program; according to the milling program, perform milling and rough machining, obtain the flow channel of the three-dimensional impeller, and at the same time, obtain the K-shaped groove of the three-dimensional blade. Its application software performs three-dimensional modeling, and changes the groove processing from manual grinding to numerical control milling, which makes the realization of the K-type groove parameters of the three-dimensional blade more standardized, and can effectively ensure the quality of the groove.

Description

technical field [0001] The invention relates to the technical field of centrifugal compressors, in particular to a molding method for a K-shaped bevel of a ternary blade. Background technique [0002] The shape of the three-dimensional impeller is complex, and its blades are mostly non-extensible and twisted ruled surfaces. The flow channel space on the impeller is narrow and twisted, and the flow channel becomes narrower as the radius of the impeller decreases, making the overall processing of the impeller difficult. . In order to improve the machinability of the integral impeller and reduce the difficulty of processing, the integral impeller is generally processed in the form of two-piece welding. Therefore, welding is the main technology in the manufacture of the overall impeller, and the quality of welding directly affects the processing quality and working reliability of the final impeller parts. The two-piece welding of the ternary impeller has great advantages in te...

AI Technical Summary

Problems solved by technology

[0002] The shape of the three-dimensional impeller is complex, and its blades are mostly non-extensible and twisted ruled surfaces. The flow channel space on the impeller is narrow and twisted, and as the radius of the impeller decreases, the flow channel becomes narrower, making the overall processing of the impeller difficult.

The huge manual grinding work not only consumes a lot of time and manpower, but also the quality of manual grinding is unstable, which requires high technical requirements for fitters

Secondly, noise, dust, etc. seriously affect the workshop environment, resulting in a relatively large proportion of occupational diseases among fitters.