A flexible hole-making device for a large-span weak steel gantry

Abstract

The invention discloses a large-span weak steel gantry flexible hole-making device, which uses a non-rigid support structure, a sliding beam and a lifting body to provide a certain stability and the most basic movement mode for the hole-making device; The characteristics of the hole making between the two reference holes, the hole is made at the local position of the hole making area, which is the area between the two reference holes where the hole making end effector is aligned, and the hole making in this area can be Realize the freedom of movement in five directions of X / Y / Z / A / B, ensuring that this type of hole-making device has enhanced local stability and precise hole-making accuracy in the hole-making field. According to the dimensions of the major parts of the aircraft and the hole-making area, regional customization of the hole-making area is realized, which saves various initial investments brought about by the traditional gantry-type hole making.

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.

Images