Composite material skin digital manufacture method

Abstract

The invention belongs to the composite material skin manufacturing technology, in particular to a composite material skin digital interchange coordination manufacturing method. In the present invention, after the skin of the forming mold is solidified and before demolding, the skin is in the best shape, and the digital drilling template is used to directly drill the positioning holes for the process ears of the skin on the mold, so as to drill holes for the subsequent trimming of the skin and The assembly provides the processing reference and assembly reference, and then performs skin positioning, trimming and drilling, skin assembly positioning, and then cuts off the process lugs, and finally performs skin riveting assembly. The composite material skin digital manufacturing method of the present invention can accurately locate in one step during the skin shifting process, avoid repetition, greatly save clamping time, and because it directly cuts to the clean edge, no on-site marking is required, and the installation accuracy is high. In addition, only the craft lugs need to be polished off at the riveting site, the grinding workload is small, the amount of dust is greatly reduced, and the production and use interchangeability in the skin manufacturing process is realized.

Description

technical field [0001] The invention belongs to the composite material skin manufacturing technology, in particular to a composite material skin digital interchange coordination manufacturing method. Background technique [0002] Composite skins in the prior art do not have positioning holes for process lugs; a margin of a certain width is reserved outside the edges of the skins; at the riveting assembly site, the skins are not positioned accurately on the assembly tooling, and workers adjust the position of the skins based on experience, and the adjustment is approved After positioning, fasten the skin and the frame of the fuselage with a rope, drill out the rivet holes, insert the spring pin, draw the edge line by hand, determine the margin to be removed, then remove the skin, and polish it off by hand on site margin. [0003] In the skin manufacturing process, if the skin is not positioned accurately and the position is adjusted based on the experience of the workers, th...

AI Technical Summary

Problems solved by technology

[0003] In the skin manufacturing process, if the skin is not positioned accurately and the position is adjusted based on the experience of the workers, the assembly accuracy will be low, and the inaccurate position will cause large riveting deformation and poor appearance quality of the fuselage; manual scribing has large errors, low repeatability, and low efficiency. Low; in the absence of tooling, manual grinding allowances on the riveting site, low efficiency, poor quality, and large dust hazards to workers' health

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