Following adaptive supporting mechanism for thin-wall cover hood like parts

Abstract

The invention provides a following adaptive supporting mechanism for thin-wall cover hood like parts, and belongs to the technical field of manufacturing of parts of aerial engines. The mechanism comprises a base, a locating ring, an inner compressing unit, an inner supporting unit and an outer supporting unit; the thin-wall cover hood like parts can be located and clamped at a time before being processed; when processing the outer surfaces of the parts, the parts are compressed through the inner compressing unit, and then the parts are supported and tightly propped through the inner supporting unit, wherein the inner supporting unit is used for tightly propping by a manual manner, so that the parts cannot be avoided being deformed due to being tightly propped; when processing the inner surfaces of the parts, the inner supporting unit can be fast dismounted, and the outer supporting unit can be fast mounted, a supporting pressing plate is used for manually compressing and supporting, and therefore, the parts can also be avoided being deformed due to being compressed and support; the processed parts are uniform in wall thickness under the effects of the inner supporting unit and the outer supporting unit; in addition, the processing precision is high, and moreover, the static balance rate of the parts can be ensured, and the axial dimension and surface quality of the processed parts are improved.

Description

technical field [0001] The invention belongs to the technical field of aero-engine parts manufacturing, in particular to a shape-compliant self-adaptive supporting mechanism for thin-walled cap parts. Background technique [0002] As an important component of aero-engines, thin-walled cap parts have high requirements for machining accuracy, but are limited by the structure of cap parts, and their processing and positioning are difficult, and the accuracy of their profile profile during processing is high. , After processing, the wall thickness of the parts is required to be uniform. [0003] Taking the rear section of the cap as an example, due to the large diameter of the upper edge plate of the rear section of the cap, it cannot be directly supported. Only the external pressure ring can be used to press the inner surface of the part, and then the inner edge of the lower end of the part can be pressed by the pressure plate. To realize the processing of the outer surface of...

AI Technical Summary

Problems solved by technology

[0003] Taking the rear part of the cap as an example, since the upper edge plate of the rear part of the cap has a large diameter, it cannot be directly supported, so the external pressure ring can only be used to compress the inner surface of the part, and then use the pressure plate to compress the inner edge of the lower end of the part. Realize the processing of the outer surface of the part. Since the rear part of the cap is a thin-walled part, its rigidity is not good, and large processing deformation will occur during processing. Since the inner and outer surfaces of the part need to be processed by clamping separately, resulting in The wall thickness of the part is uneven, the static balance cannot be guaranteed, and the upper end surface of the rear section of the cap is not controlled. The axial dimension after processing and the surface quality of the part are not good, which seriously affects the product quality and production progress.

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