Large-span weak-rigidity gantry flexible hole forming device

Abstract

The invention discloses a large-span weak-rigidity gantry flexible hole forming device. A non-rigid supporting structure, a sliding beam and a lifting body are used to provide certain stability and the most basic movement mode for the hole forming device. According to the characteristics of hole forming between two reference holes of a tail end actuator, holes are formed in the local position of ahole forming region, wherein the local position is a region between the two reference holes for aligning of the hole forming tail end actuator, and free movement in directions X/Y/Z/A/B can be achieved when hole forming is carried out within the region. It is ensured that the hole forming device has enhanced local stability and accurate hole making precision in the field of hole forming. Regionalcustomization of the hole making region is realized according to the appearance size of each large part of an airplane and a hole making region, and various early-stage investment caused by traditional gantry type hole making is saved.

Description

technical field [0001] The invention relates to the field of hole making of large aircraft parts in the aviation manufacturing industry, in particular to a rapid and precise hole making technology and a hole making device for large parts such as aircraft wings. Background technique [0002] At this stage, the hole making method for large aircraft parts such as wings generally adopts the gantry hole making method. There are two forms of gantry drilling: one is the form of the overall movement of the gantry frame and the end effector. This type of gantry is an integral rigid frame. The weight of the moving gantry along the span direction becomes larger, the starting inertia is large, and the movement accuracy and efficiency are improved. low, poor stability, and high overall cost; another structural form is to set up foundation walls on both sides, and the upper frame of the gantry moves, and the cost will be greatly reduced by using the rigid frame on the upper part of the ga...

AI Technical Summary

Problems solved by technology

There are two forms of gantry drilling: one is the form of the overall movement of the gantry frame and the end effector. This type of gantry is an integral rigid frame. The weight of the moving gantry along the span direction becomes larger, the starting inertia is large, and the movement accuracy and efficiency are improved. low, poor stability, and high overall cost; another structural form is to set up foundation walls on both sides, and the upper frame of the gantry moves, and the cost will be greatly reduced by using the rigid frame on the upper part of the gantry. Compared with the mobile gantry structure, the movement accuracy and stability are enhanced to a certain extent, and the width of the gantry frame itself is reduced. The disadvantage is that the upper guide rail is installed at a higher position, which is not convenient for adjustment and maintenance, and the installation cost and maintenance cost are very high.

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