Fixing clamp and method for manufacturing aluminum honeycomb machinery

Abstract

The invention belongs to the technical field of nonmetal material manufacture, particularly relates to a fixing clamp and a method for manufacturing aluminum honeycomb machinery. The fixing clamp for manufacturing and forming the aluminum honeycomb machinery comprises a platform plate, both a front face and an opposite face of the platform plate are working faces, the front face of the platform plate is a base plane for fixing an aluminum honeycomb blank, and the opposite face of the platform plate is a front face for fixing an aluminum honeycomb half-finished product. A concave area is formed on the front face of the platform plate, a through hole is arranged in the concave area, a plurality of air through grooves penetrating through the through hole are further formed in the concave area, and an air exhaust nozzle of a vacuum air exhaust tube is embedded in the through hole. Basic characteristics of the opposite face of the platform plate are same with that of the front face of the aluminum honeycomb machinery, and the fixing clamp is characterized in that a geometrical shape of the concave area of the opposite face of the platform plate is in accordance with that of a reversely-cut sample of the front face of an aluminum honeycomb part, and a theoretical margin line of the part is carved on the bottom face of the concave area. The fixing clamp and the method enable the part to keep flat during manufacturing and be free of clamping deformation, and improve manufacture accuracy.

Description

technical field [0001] The invention belongs to the technical field of non-metallic material manufacturing, and in particular relates to an aluminum honeycomb machining and holding fixture and method. Background technique [0002] In the current field of aerospace material manufacturing technology, the forming of aluminum honeycomb mainly adopts the forming method of numerical control machining. Aluminum honeycomb parts need to be positioned and held during machining. Due to the small milling force, using a pressing plate to hold the part will cause the part to deform, resulting in low manufacturing accuracy of the part. At the same time, since the front and back sides of the aluminum honeycomb parts have curved shapes, two sets of fixtures are currently used to process the front and back sides of the part separately, and because there are manufacturing errors between the fixtures and the accuracy of repeated positioning is not high, the manufacturing accuracy of the parts i...

AI Technical Summary

Problems solved by technology

Aluminum honeycomb parts need to be positioned and held during machining. Due to the small milling force, using a pressing plate to hold the part will cause the part to deform, resulting in low manufacturing accuracy of the part

At the same time, since the front and back sides of the aluminum honeycomb parts have curved shapes, two sets of fixtures are currently used to process the front and back sides of the part separately, and because there are manufacturing errors between the fixtures and the accuracy of repeated positioning is not high, the manufacturing accuracy of the parts is further improved. Reduced, resulting in the scrapping of parts that cannot meet the requirements of aviation product assembly

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