RU2456128C2 - Method of coding for drilling device - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: set of invention relates to production of aircraft components. Drilling device 7, 15 may be encoded in drilling aircraft components. Proposed method comprises: locating drilling template with at least on drilled hole on component to be machined, locating drill bush 1 and fitting drilling device 7, 15 in template drilled hole. Drill bush 1 comprises coding device made up of bush 2 while drilling device incorporates coding coupling. Said coding coupling gets into engagement with said coding device.

EFFECT: higher precision.

4 cl, 3 dwg

Description

FIELD OF TECHNOLOGY

The present invention relates to a coding method for a drilling device for an aircraft.

BACKGROUND OF THE INVENTION

Each wing-to-fuselage connection contains a plurality of holes for conductive bushings for drilling. Since the surfaces of the wing and the fuselage have different curvatures, the bushings and, accordingly, the holes have different depths. In addition, the diameters of the holes, the lengths of the rivet rods and their shape (conical or cylindrical) may differ.

Accordingly, there is a risk of a worker error who may choose the wrong drill, as a result of which the wrong hole will be drilled.

SUMMARY OF THE INVENTION

The aim of the invention is to provide a coding method that prevents errors when choosing a drill and, accordingly, drilling erroneous holes.

The independent claims describe the features of a method and device by which this goal can be achieved.

According to a first embodiment of the present invention, there is provided an encoding method for a drilling device. The encoding method includes the following steps. A drilling template having at least one drilled hole is mounted on the workpiece. Such a part may be, for example, a part of an aircraft. In particular, such a part may be a wing, fuselage, wing box or other component of the aircraft. A conductor sleeve for drilling is installed in the drilled hole of the drilling template, and a drilling device is inserted into the drilled hole. The conductive bush for drilling contains a master code device, in particular the edge of the sleeve. The drilling device comprises a code sleeve. The code clutch may engage with a master code device.

In one embodiment of the invention, the edge of the sleeve comprises a first locking element, a first recess and a second recess. The second recess is separated from the first recess along the edge of the conductor sleeve at a certain angular distance. The code sleeve comprises an edge of the sleeve comprising a second locking device, a first code pin and a second code pin. The first and second code pins are spaced apart at a certain angular distance. The first locking device may be connected to the second locking element when the first code pin enters the first recess and the second code pin enters the second recess.

The drilling template has a grid of holes indicating locations where holes should be drilled. The bushings are mounted in the drilled holes of the drilling templates. The bushings are used as master code devices as follows. In a preferred embodiment, the bushings are equipped with a BNC bayonet connector. In addition, the bushings have two cutouts on their edge. One of these cutouts defines a zero point. The other cut is separated from the first cut at a certain angular distance. Since the angular distance between the zero point and the second cut is known, it can be a sign that determines the type of hole.

The drilling device acts as a slave code device, since its operation depends on the master code device. In a preferred embodiment, the drilling device, such as a drilling machine, is provided with a second BNC connector, which can be connected to the first conductor sleeve connector BNC. In addition, the drilling device is equipped with two code pins. The first pin enters the zero point cutout, and the second pin enters the second cutout. Only when the two pins fit into the two cuts correctly can two parts of the BNC connector be connected and the drilling device can be turned on to drill the hole.

BRIEF DESCRIPTION OF THE DRAWINGS

Some embodiments of the present invention are described in more detail below in order to explain and provide a better understanding, with reference to the following accompanying drawings:

figure 1 is a schematic view of one design of a conductive sleeve for drilling (upper part) in accordance with the invention and the corresponding drilling device (lower part);

figure 2 is a view of a second embodiment of a conductive sleeve for drilling with a corresponding drilling device;

figure 3 is a schematic view of another design of the drilling device.

Identical or similar elements are denoted in different drawings by the same reference numbers. The views in the figures are schematic and are not to scale.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The figure 1 shows the upper part of one of the variants of the conductive bushings for drilling, which is the first master code element.

The junction sleeve 1 comprises a master code device, in particular an edge 2 of the sleeve containing a first locking element 5 with a first recess 3 and a second recess 4, which is 180 ° apart from the first recess 3 along the edge of the sleeve at a certain angular distance 6.

Figure 1 below shows a part of the design of the drilling device 7. This drilling device 7 contains a code sleeve with a code edge 8, which contains a second locking device 9 with a first code pin 10 and a second code pin 11, and the first and second code pins are spaced circumferentially angular distance 6 ', also equal to 180 °.

The drilling device 8 and the conductor sleeve 1 constitute a kit 12, in which the first locking device can be connected to the second locking element if the first code pin 10 enters the first recess 3 and the second code pin 11 enters the second recess 4.

Figure 2 shows a second set 13 with other angular distances 14, 14 'between the pins and the recesses.

Figure 3 shows a third drilling device 15 with a drill 16. The drill has a diameter D of 47 mm.

The drilling device also contains code pins 17, 18 near the flanges 19, 20 of the BNC connector.

It must be borne in mind that the term “comprising” does not exclude the use of other elements or steps, and the indication of a part or step in the singular does not exclude the use of several such parts or steps. In addition, it is possible to use combinations of elements described in various embodiments of the invention. It should also be borne in mind that the reference signs in the claims should not be construed as limiting its scope.

Claims (4)

1. A coding method for a drilling device (7, 15) for drilling aircraft parts, comprising installing a drilling template having at least one drilled hole on the workpiece, installing a conductive sleeve (1) for drilling into the drilled hole of the drilling template, and introducing a drilling device (7, 15) into the drilled hole of the drilling template, using a conductive sleeve (1), which contains a master code device, made in the form of a sleeve with a first recess (3) and a second recess (4) along the edge (2) of the sleeve, and a drilling device with a code sleeve, the edge (8) of which contains a first code pin (10) and a second code pin (11), and the coupling engages with a master code device when their movement in the longitudinal direction towards each other, so that the first code pin (10) enters the first recess (3), and the second code pin (11) enters the second recess (4). 2. The method according to claim 1, in which the code driver and the code coupling are connected using a bayonet connection. 3. The method according to claim 1, in which the drilling device (7, 15) contains an additional coupling. 4. A kit (12, 13) for encoding a drilling device (7, 15) for drilling parts of an aircraft, comprising a conductive sleeve (1) containing a master code device made in the form of a sleeve with a first recess (3) and a second recess (4 ), separated from the first recess (3) along the edge (2) of the sleeve at a certain angular distance (6), and a drilling device (7, 15) with a coupling, the edge of which contains the first code pin (10) and the second code pin (11) spaced from each other at a certain angular distance (6, 6 '), and the clutch is engaged ix with a master PIN device during their movement in the longitudinal direction towards each other so that the first coded pin (10) enters the first recess (3) and a second coded pin (11) enters the second recess (4).

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