A clamping method for anodic oxidation of large wallboard parts

Abstract

A clamping method for anodic oxidation of large wallboard parts, in which a plurality of clamping lugs are arranged on the suspension side of the parts, and each clamping lug is provided with a circular connection hole; there are multiple metal hanging straps, One end of each metal sling is provided with an elbow hook, and the other end is provided with a long circular limit hole; the elbow hook of the metal sling is hung on the conductive bar, and the parts are fixed with non-slip gaskets and metal bolts. The circular connection hole is fixedly connected with the oblong limit hole of the metal suspension strap.

Description

technical field [0001] The application relates to aircraft manufacturing technology, in particular to a clamping method for anodic oxidation of large aircraft wing panel parts. Background technique [0002] The clamping method of wallboard parts during anodizing is very important to the whole anodizing process. The main functions of the clamping are two aspects, one is to fix the parts, and the other is to provide electrical conductivity to the parts. The way of clamping and its conductivity can affect the quality of the oxide film during anodization, such as clamping angle, position, degree of firmness, contact area, etc. Moreover, the maximum electrical load, material and area of ​​the fixture itself can also affect the quality of the film layer. The traditional clamping method can only be used in the anodizing process of small and medium-sized parts (the size of the part is less than 6 meters and the weight is less than 100 kg). Due to the small size and low weight of th...

AI Technical Summary

Problems solved by technology

The traditional clamping method can only be used in the anodizing process of small and medium-sized parts (the size of the part is less than 6 meters and the weight is less than 100 kg). Due to the small size and low weight of the parts, the requirements for anodizing fixtures are correspondingly higher. Low, generally use aluminum wire to bind the parts on the aluminum rod (about 80 mm in diameter), the aluminum rod is hung on the conductive bar, this method is easy to scratch the part matrix, and the part surface left after anodization The fixture print is large. If the current passing through the aluminum wire is large, the aluminum wire may even be blown, and there is a risk of parts falling into the anodizing tank or corrosion tank

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