Numerical control machining technological equipment for outer-grid wall plates

Abstract

The invention discloses numerical control machining technological equipment for outer-grid wall plates. The equipment comprises pressing plates (3), tension devices (2), tightly-pressing devices (5) and an arc blank (4) with a vacuum sucking disc. The arc blank (4) with the vacuum sucking disc is matched with a shell wall plate in radian. After being bent according to the radian of the shell wall plate, a to-be-machined flat plate is placed on the arc blank (4). The two ends, in the direction of the generatrix of the arc blank (4), of the bent to-be-machined flat plate are tightly pressed through the pressing plates (3), and the other two ends are tensioned in the tangential direction of the outer end of the bent to-be-machined flat plate through the tension devices (2); and after out-grid milling is completed, allowances, in the arc direction, of the two ends of the bent flat plate are cut off, and instead, the two ends of the bent flat plate are subjected to normal pressing through the tightly-pressing devices (5).

Description

technical field [0001] The invention relates to numerical control processing technology equipment, in particular to the technology equipment required for the processing of the outer grid wall plate, which is an important part of launch vehicles and missile weapons, that is, the equipment required for the outer grid wall plate to be rolled and then mechanically processed. Background technique [0002] The panel manufacturing of my country's active mass-produced launch vehicles mainly adopts the "roll bending"-"chemical milling" scheme. It is difficult to control the remaining skin wall thickness by chemical milling, resulting in uneven wall thickness, low reliability, and poor weight reduction effect of the rocket body. Chemical milling will cause a large amount of waste liquid discharge, resulting in energy waste and environmental pollution. [0003] At present, a certain type of short shell panel mainly adopts the method of first flat plate mechanical milling and then bend...

AI Technical Summary

Problems solved by technology

After the four wall panels are welded, the roundness of the short shell is poor. After connecting with the end frame, the end frame is also deformed and cannot be connected with other sections normally.

The processing method of rolling bending first and then mechanical milling is affected by the quality of rolling bending, it is not easy to be completely absorbed, and it is easy to cause the thickness of the skin to be out of tolerance

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