Guide vane body oil hole machining method

Abstract

The invention provides a guide vane body oil hole machining method, which is characterized by comprising the following steps: firstly placing and fixing a flat plate with a proper size on a boring lathe guide rail and scribing a straight line which is collinear with a main shaft of a boring lathe on the flat plate; then placing a guide vane body on the flat plate by overlapping an oil hole central line mark marked on the outer circular edge of a guide vane body flange with the straight line previously scribed on the flat plate; and finally, vertically moving the center of the main shaft of the boring lathe clamped with a drilling bit to the boss direction for a corresponding distance from the plane of the flat plate according to the vertical distance from the central line of an oil hole in a boss to the flange plane in a design drawing, wherein a short drilling bit is firstly used and then changed into a long drilling bit after a certain depth is reached during machining. The method is simple, easy and efficient, a special tool clamp is not required to be designed additionally, and the production cost is reduced.

Description

technical field [0001] The invention relates to the field of processing and production, in particular to a method for processing an oil hole in a guide vane body. Background technique [0002] The oil hole of the guide vane body is to deliver lubricating oil to the central shaft of the guide vane body through the oil hole, which has the effect of lubricating and cooling, and ensures the normal operation of the main shaft. Since the oil hole of the guide vane runs through the entire thick airfoil blade, if there is a machining deviation in the angle of the oil hole during the processing process, the blade will be biased to drill through, and oil leakage will occur during the oil supply, resulting in the scrapping of the whole product and causing huge economic losses. loss. Existing guide vane body oil holes are mostly processed by high-end CNC machine tools or complex auxiliary fixtures. The use of high-end CNC machine tools requires high-level processing personnel and high ...

AI Technical Summary

Problems solved by technology

Since the oil hole of the guide vane runs through the entire thick airfoil blade, if there is a machining deviation in the angle of the oil hole during the processing process, the blade will be biased to drill through, and oil leakage will occur during the oil supply, resulting in the scrapping of the whole product and causing huge economic losses. loss

Existing guide vane body oil hole processing mostly uses high-end CNC machine tools or complex auxiliary fixtures. Using high-end CNC machine tools requires high-level processing personnel and high production costs.

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