Combined positioning and supporting clamp for sealing part and application method thereof

Abstract

The invention relates to a combined positioning and supporting clamp for a sealing part and an application method thereof. The matching precision of a part and the clamp is effectively improved, a condition that the part has poor rigidity so that the part is deformed in a processing process is avoided or reduced, and the processing precision of the part is improved. According to the technical scheme provided by the invention, the combined positioning and supporting clamp comprises an annular clamp base, wherein a step is arranged on the outer circumference of the upper surface of the annular clamp base; a plurality of U-shaped guide grooves are uniformly formed in the step of the clamp base along the circumferential direction; step-shaped supports are arranged on the guide grooves; U-shaped grooves are formed in the bottoms of the supports; waist-shaped through holes are formed in lower step surfaces of the supports; the supports can slide along the guide groove and are fixed through screws I in the waist-shaped through holes; a pressing plate and a cross-shaped supporting plate composed of a supporting plate I and a supporting plate II are arranged between each two adjacent supports; a plurality of inward concave measurement grooves are uniformly formed in an inner ring of the clamp base; weight-reduction grooves are uniformly formed in the bottom of the clamp base along the peripheral direction.

Description

technical field [0001] The invention relates to the technical field of aviation parts processing, in particular to a combined positioning support fixture for sealing parts and a use method thereof. Background technique [0002] Sealing rotating parts are widely used in the manufacture of aeroengine high-pressure outlet guide vane sealing components and various sealing rings. For the sealing rotating parts with good rigidity, the simple positioning and clamping method can be used to complete the processing of the parts, but for the thin-walled sealing parts with poor rigidity, the conventional positioning fixture cannot form an effective support for the parts, and the parts are affected during the processing process. The cutting force has a great influence, especially in the parts with thin walls and poor rigidity, the deformation after processing is large, and the processing accuracy is low. Therefore, in order to improve the processing accuracy of thin-walled sealing parts...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the present invention provides a combined positioning support fixture for sealing parts and its use method, which effectively improves the matching accuracy between the parts and the fixture, and the fixture can form a thin-walled and less rigid part of the part. Auxiliary support to avoid or reduce the deformation of parts due to poor rigidity during processing, and solve the problem of low processing accuracy of parts

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