Hole guiding device

Abstract

The invention discloses a hole guiding machine, comprising an upper plate, a lower plate, and at least two guiding elements arranged between the upper plate and the lower plate. The hole guiding machine is characterized in that the guiding elements comprise a guide column fixed on the lower plate and a guide bushing which is arranged at the corresponding position of the upper plate and used for connecting the upper plate and the lower plate so as to lead a cone-shaped positioning pin arranged on the upper plate to be concentric with a drilling guide sleeve arranged at the corresponding position of the lower plate. The hole guiding machine can better ensure the perpendicularity of the guided hole and the part surface and the concentricity of the guided hole and the guide hole by the guiding function of the guide bushing, and no slant holes can be guided out, thus improving the product quality. Ends of the upper plate and the lower plate are provided with a distance adjusting device arranged between the upper plate and the lower plate, thus leading the hole guiding machine to be applicable to guiding holes on various parts with different interlining thickness.

Description

technical field [0001] The invention relates to a machining tool, in particular to a hole-leading device for drilling a structure-unopened part and a through-hole in an aircraft assembly. Background technique [0002] In the process of aircraft assembly, in order to determine the hole positions of fasteners, reduce the workload of marking lines and the use of tooling drilling templates, pilot holes are often pre-drilled on one of the two or more parts connected to each other. According to the position of the guide hole on the part, the guide hole is penetrated on the remaining multi-layer parts, and then reamed to the end hole of the fastener. The protruding holes and guide holes must ensure coaxiality and verticality relative to the product surface in order to obtain good product quality. However, limited by the product structure and in order to ensure the hole margins, etc., the guide holes are often selected on the internal parts, which means that the holes must be guide...

AI Technical Summary

Problems solved by technology

Because the thickness of the steel plate used by this hole guide is generally 1-2mm, because the steel plate is very thin, it is very easy to deform, and because the strength of the thin steel plate is not high, after a short period of use, the guide pin is easy to fall off or cooperate with the steel plate. The gap increases, causing the guide pin to be deflected, and the hole opposite to the guide pin is very easy to wear and cause the hole diameter to become larger, so that the lead-out hole is not in the same axis as the original guide hole, and misplaced holes or oblique holes appear, which affects product quality

Images