JPH0523587B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for joining a sandwich panel and a joint used in an artificial satellite structure or the like.

[Conventional technology]

Figure 6 is an example of Japan published by Showa Aircraft Co., Ltd.
Technical Conferences, Sandwich
Construction, June 75 Manual #618 p.18
FIG. 7 is a perspective view showing a conventional method of joining a sanderch panel and a joint shown in FIG. In the figure, reference numeral 1 denotes a sanderch panel, which is made up of, for example, a honeycomb-shaped core material 1a and skins 1b attached to both sides of the core material 1a. 2 is a U-shaped joint that is attached to the end of the panel 1;
It is attached so as to cover the three ends of the panel 1. 3 is an adhesive interposed between the skin 1b of the panel 1 and the inner surface of the joint 2 to bond them together. The fitting 2 is a fastening part for attaching other parts to the panel 1, and a screw hole 2a for attaching other parts to the panel 1 is provided in the part of the fitting 2 facing the core material 1a. There is.

The method for joining panel 1 and fitting 2 is to apply adhesive 3 to the joint of panel 1 or fitting 2, or to the joint of both, and then insert fitting 2 into a predetermined position on panel 1, attach it, and then attach it. Adhesive agent 3 is used to adhere to the epidermis 1b. At this time, the dimensional accuracy of the mounting position of the joint 2 may be rough.

Next, a screw hole 2a is machined into the joint 2, or a hole is drilled using a drilling jig and then tapped.

[Problem that the invention seeks to solve]

In the conventional method of joining panels and fittings as described above, when machining the screw holes 2a, when setting the panel on the machine and drilling the holes,
It was necessary to devise a setting jig so as not to damage the panel, or to process it carefully over time, and if the panel was large, a large machine commensurate with the size was required. Also, when drilling with a drilling jig, it was necessary to take time and be careful to avoid damaging the panel.

An object of the present invention is to provide a method for joining a panel and a joint, which allows the joint to be joined to a panel in a short time without incurring the risk of damaging the product.

[Means for solving problems]

The method for joining a panel and a joint according to the present invention includes a sanderch panel having skins on both sides of a core material;
In this method, a U-shaped fitting that is attached to cover three sides of the end of the panel and has a screw hole is bonded with an adhesive. This is a method of bonding the panel and the joint with an adhesive while aligning positioning holes previously drilled in the joint with positioning pins.

[Effect]

In the method for joining panels and fittings of the present invention, positioning holes are provided in advance at corresponding positions on the panel and fittings, and the positioning pins are inserted by aligning the positioning holes provided in the fitting with the positioning holes provided in the panel. Insert the panel and attach it with adhesive. This eliminates the need for post-processing and eliminates the risk of damaging the product.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a state in which a fitting is attached to a panel according to an embodiment of the present invention, FIG. 2 is a perspective view of a fitting, FIG. 3 is a perspective view of a panel, and FIG. It is a sectional view taken along the line BB in the figure, and in the figure, the same reference numerals as in FIG. 6 or 7 indicate the same or corresponding parts. 4a and 4b are positioning pins. Positioning holes 1c and 1d are pre-drilled in the joint portion 5 of the panel 1 in the thickness direction. In addition to the screw hole 2a, the vertical tool 2 has positioning holes 2b and 2c drilled in advance at positions corresponding to the positioning holes 1c and 1d in the portion facing the skin 1b.

The method of joining the panel 1 and the fitting 2 is as follows:
After inserting the fitting 2 into the panel 1 with the adhesive 3 applied to the
, and in this state, the panel 1 and the joint 2 are bonded together with the adhesive 3. In this case, the positioning holes 2b, 2c of the joint 2 and the positioning holes 1c, 1 of the panel 1 are used.
If you drill d accurately, screw hole 2 of fitting 2
The positional accuracy of a can be maintained. Although the joint tool 2 is provided with two positioning holes 2b and 2c, it is also possible to use only one positioning hole.

After the adhesive 3 has hardened, the positioning pins 4a and 4b are
Pull it out or remove any protruding parts.

In addition, in the above embodiment, the positioning pins 4a, 4
b passes through the panel 1, but it is also possible to extend it only on one side as shown in FIG.

〔Effect of the invention〕

As described above, according to the present invention, the fitting and the panel are joined in the aligned state by passing the positioning hole provided in the fitting in advance and the positioning pin provided in the panel in advance. There is no need for post-processing to drill screw holes for fastening after joining, eliminating the risk of damaging the product during post-processing, and allowing panels and fittings to be joined in a short period of time and at low cost.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a state in which a fitting is attached to a panel according to an embodiment of the present invention, Fig. 2 is a perspective view showing the fitting, Fig. 3 is a perspective view showing the panel, and Fig. 4 is a perspective view showing the fitting. Fig. 1 is a BB sectional view, Fig. 5 is a BB sectional view showing another embodiment, Fig. 6 is a perspective view showing a conventional joining method, and Fig. 7 is an AA sectional view thereof. be. In each figure, the same reference numerals indicate the same or corresponding parts, 1 is a sandwich panel, 1c, 1d, 2
b, 2c are positioning holes, 2 is a fitting, 2a is a screw hole, 3 is adhesive, 4a, 4b is a positioning pin, 5
is the joint.

Claims (1)

[Claims] 1. A sanderch panel with skins on both sides of the core material and a U-shaped fitting that is attached to cover the three ends of this panel and that has screw holes are bonded together with adhesive. In this method, the panel and the fitting are bonded together using an adhesive, with the positioning hole pre-drilled in the panel and the positioning hole pre-drilled in the fitting being aligned by passing a locating pin through them. A method for joining panels and fittings, characterized by: