A method for holding small-sized honeycomb core parts based on ultrasonic machine tools

Abstract

The invention discloses a small-size honeycomb core part holding method based on a ultrasonic machine tool; an adhesive tape with the smallest critical area is connected with the bottom surface of a part; auxiliary holding sleeves are added around the profile of the part to increase the holding force of the part; and the holding of small-size honeycomb core part is realized through vacuum absorption to guarantee high-quality and high-efficiency machining of the honeycomb core part. The method guarantees stable holding of the small-size honeycomb core part through calculating the smallest adhesive tape area needed in the holding process of the small-size honeycomb core part and adding the auxiliary holding sleeves around the profile of the part to prevent pullup, overcutting or even waste of the part in the machining process due to insufficient holding force; and meanwhile, the auxiliary holding sleeves are added to improve the rigidity of the part, to reduce the machining deformation of the part and to improve the machining quality of the small-size honeycomb core part.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a method for holding honeycomb core parts, in particular to the technical field of holding small-sized honeycomb core parts in ultrasonic cutting. Background technique [0002] Honeycomb core parts are widely used in aerospace and other fields with special requirements because of their high strength, low density, heat resistance, impact resistance, fatigue resistance, insulation and many other excellent properties. Its components are thin and short aramid fibers, extremely strong toughness, easy to deform under force on the axially orthogonal plane, and poor machinability, which is a typical difficult-to-machine material. At present, most of the honeycomb core parts are used in the interlayer position of the wing of the aircraft, and the size of the parts is different in different positions. In the traditional processing process of the honeycomb core parts, the shap...

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Problems solved by technology

[0003] However, the traditional holding method has the following disadvantages: First, the small-sized honeycomb core parts are only held on the vacuum platform by adhesive tape with the size of the part. During the milling process, insufficient holding force is likely to cause the parts to be pulled up, resulting in overcutting or deformation. It even leads to the scrapping of parts; secondly, the holding and processing of honeycomb core parts is realized through special tooling, the loading and unloading of parts is cumbersome, and the operator needs to clean the tooling, which not only increases the labor load of workers, but also increases the manufacturing cycle of parts, seriously affecting the quality of parts. High production efficiency, while using special tooling to increase the processing cost of parts

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