Manufacturing method of blind-hole compressor impeller

Abstract

The invention discloses a manufacturing method of a blind-hole compressor impeller. The manufacturing method comprises the following steps: step 1, installing an impeller blank on a numerical-control vertical lathe, turning the bottom end surface, a bottom end outer circle, a back arc and a large outer circle, and machining a blind hole by utilizing a reamer; step 2, clamping the large outer circle by utilizing three claws, leveling the bottom end surface, and turning a meridian plane and a top end surface; step 3, locating by utilizing the bottom end surface, connecting a bolt with the blind hole by threads, straining the bolt, clamping the back arc and the bottom end outer circle by utilizing a clamp, machining a threaded hole, and milling an inner hexagonal hole, blades and runner. By adopting the manufacturing method, the machining precision can be guaranteed, the production efficiency is improved, and the manufacturing cost is reduced.

Description

technical field [0001] The invention relates to the field of compressor impeller processing of a turbocharger, in particular to a method for manufacturing a blind hole compressor impeller. Background technique [0002] In recent years, due to the development of diesel engines in the direction of high performance, high efficiency and energy saving, higher requirements have been put forward for the compact structure, beautiful appearance, safety and reliability of turbochargers. Compressor impeller is the core part of high-speed rotation in the turbocharger, which provides compressed air with a certain pressure ratio for the diesel engine and improves the efficiency of the diesel engine. [0003] With the continuous improvement of turbocharger technology and the continuous improvement of the compressor impeller structure, so far, the compressor impeller has developed into a form of blind hole integral with long and short blades, and its own dimensional accuracy and shape and p...

AI Technical Summary

Problems solved by technology

[0003] With the continuous improvement of turbocharger technology and the continuous improvement of the compressor impeller structure, so far, the compressor impeller has developed into a form of blind hole integral with long and short blades, and its own dimensional accuracy and shape and position tolerance accuracy requirements have been improved. However, the traditional manufacturing method of compressed air impeller has been difficult to guarantee its precision requirements. Due to the many traditional processes and the low accuracy of equipment aging, the production efficiency is very low.

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