JPH04203611A - Honeycomb panel welding method - Google Patents

Abstract

PURPOSE:To enhance welding strength by slantwise cutting a welded end of a honeycomb panel, welding an outer wall to a contact end edge of the panel, and disposing a corner fitting with a flange formed into a right-rectangular cross section in an inclined opening portion, followed by welding in the case of welding the panel to the outer wall of a vehicle at a right angle. CONSTITUTION:The end portion of a panel A is cut slantwise at an adequate angle, wherein the panel A is formed by combining a honeycomb core of a bracing sheet made of an aluminum alloy and two pieces of face plates. The slantwise cut end portion of the panel A is welded to an outer wall 4 at a right angle. A right-triangular corner fitting 5 having a flange 5a at the tip end on a side is inserted into an opening portion formed between the inclined angle portion of the panel A and the outer wall 4. The right-angular tip end of the corner fitting 5 and the outer wall surface, and the flange 5a of the corner fitting 5 and the face plate of the panel A are fillet-welded, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a joining method for welding honeycomb panels (hereinafter simply referred to as "panels"), which are a combination of a honeycomb core portion and a face plate, from one side.

(Prior Art) As a conventional method of joining panels of this type at right angles, for example, two panels A and B are joined as shown in FIG.
Place the ends of the bracket at right angles, and insert the angle bracket 1 from the inside and outside.
Connect by sandwiching between 1a and Ilb, and screw or rivet 12
It was fixed with In addition, as a method for joining panels horizontally, for example, when joining the side structure panels of a vehicle structure in the longitudinal direction as shown in Fig. 8, the edge lengths of the panel face plates are made different as shown in Fig. 6. The one edge is held between the flanges of a lap joint fitting 13, and rivets or the like are arranged in two rows to prevent a pin joint-like connection, and the inner flanges of the shorter edge are connected by a connecting fitting 14. However, since ordinary rivets could not be used, special bolts (hack bolts) had to be used. In addition, to connect the side gutter panels of the structure in the circumferential direction, as shown in Figure 7, in order to smooth the outer surface of the structure, the length of the face plate serving as the outer surface is made longer than the length of the inner surface, and the longer edges are butted together. , Insert the joint fitting 16 inside the face plate, insert the batten 15, perform -row rivet connection, sandwich the short side of the panel that will become the inner surface of the structure between the joint fittings 16 and 17, and tighten special bolts (hack bolts). was used to combine.

(Problems to be Solved by the Invention) All of these conventional joining methods have problems such as not being very promising in terms of strength and furthermore requiring time and effort to join.

Therefore, it is an object of the present invention to provide various methods for joining honeycomb panels that are simple and have high strength.

(Means for Solving the Problems) In order to achieve the above object, in the binding method of the present invention,
The first method is to join the panels at right angles to the exterior wall.
The end of the panel is beveled at an appropriate angle, the leading edge thereof is placed in contact with the outer wall, the contact edges of the outer wall and the face plate of the panel are welded, and then the opening created by the beveled cutting is A corner metal fitting is fitted into the wall and has a hollow right triangular cross section with a brim that contacts the panel face plate on one side perpendicular to the outer wall. The edges are welded together.

The second joining method is to join two panels horizontally.
The bottom edge face plate of one panel and the front edge face plate of the other panel, which is cut at an appropriate angle, are arranged so as to touch each other, welded together through a backing material, and then fitted into the opening between the rear panels. The mating cross section is a hollow right triangle, and a collar is provided at both ends of the upper side, corner metal fittings are placed on each side in contact with the face plate of the panel, and the tip of the collar is welded to the face plate of both panels. It is something.

The third joining method is to join one end of two panels to one side of the other panel. After that, place a corner fitting with a hollow right triangular cross section that fits into the opening between both panels and a flange on one side in contact with the beveled panel face plate, The flange end of the corner fitting and the tip of the right angle part are welded to the other panel face plate.

The fourth joining method is to join two panels at right angles at the corners at one end of the panels, touching the edges of one panel along the edge of the other panel so that the openings are at right angles. weld from the opening side, then fit into the opening,
A corner metal fitting having a brim on its outer edge and in contact with each panel side end face is arranged, and the edge of the brim of the corner metal fitting is welded to the panel face plate. be.

(Function) As mentioned above, by arranging the corner fittings that fit into the openings between the two panels to be joined, the face plates of the panels can be connected directly to each other.
Alternatively, since the panels are welded together through corner fittings or backing materials, the panels are completely integrated. Therefore, the strength is higher than that of conventional joining methods, and in addition, the corner fittings are easy to form using extruded materials, and the work is simplified by automating welding.

(Example) DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described by way of example with reference to the drawings.

FIG. 1 shows an embodiment in which a panel is joined to an external wall at right angles. Panel A is a panel in which a honeycomb core made of aluminum alloy pre-zinc sheet and two face plates are combined and brazed. The panel is joined at right angles so as to be in contact with the outer wall 4, and the outer wall and the face plate of the panel are fillet welded at their contact edges from the opening side formed by the beveled panel B and the outer wall 4. Note that the beveled angle of panel A may be any angle that can form an opening in which fillet welding of the contact edge can be performed.

Next, a corner metal fitting 5 is inserted into the opening formed by the diagonal cutting, has a hollow right triangular cross section, and has a flange 5a at the tip of one side sandwiching the right angle, and connects the lower surface of the flange 5a with the panel. It is inserted into the opening so that the face plate of panel A is in contact with the face plate of panel A, and the tip of the right angle part of the corner metal fitting 5 and the outer wall surface, and the brim 5a of the corner metal fitting 5 and the face plate of panel A are fillet welded.

Figure 2 shows an example in which two panels are joined horizontally.The lower edge face plate of panel A and the edge face plate of the other panel B are diagonally cut at an appropriate angle or a backing material is used. The face plates and the face plate and the backing material are welded together so that they are butted against each other. Note that the oblique angle of the panel B may be any angle necessary for welding. Next, the cross section that fits into the opening between the previously obliquely cut panel B and the other panel A is a hollow right triangle, and a collar 6a that contacts the surfaces of both panels A and B is provided at both ends of its upper side. A corner metal fitting 6 is arranged in the opening, and the tip of the collar 6a and the face plates of panels A and B are welded.

Figure 3 shows an example in which the end of the other panel is joined to one side of two panels at right angles, and the panel B to be joined is
A front edge face plate with the end cut at an appropriate angle is placed in contact with the backing material 2 attached to the other panel A and at a right angle so as to be in contact with the face plate of panel A, and both panels are attached through the opening. Weld the joints of A and B. After that, both panels A and B
A corner fitting 7 is arranged, which has a hollow right-angled cross section that fits into the opening between the panels, and has a flange 7a on one side sandwiching the right angle so as to be in contact with one face plate of the panel B. The tip of the flange 7a is welded to the face plate of panel B, and the tip of the right angle part of the corner fitting 7 is welded to the face plate of panel A. It should be noted that if the panel A and the backing material 2 are welded, in addition to the ease of assembly described above, the joint strength will be improved.

Figure 4 shows an example in which two panels are joined at a right angle at a corner.The edge of the other panel B is brought into contact with the edge of the other panel A along the edge of the other panel, so that the opening is at a right angle. First, fillet weld the connecting edge from the top of the opening. If necessary, backing material 2 may be placed on the inside of the joint (lower side in the figure).
By providing fillet welding between the edges of the backing material 2 and the contact surfaces of panels A and B, ease of assembly and joint strength can be improved. Next, the other edge portions 1a of both panels A and B of the opening 1 are fitted into the edge 1a with an arcuate cross section, and a collar 3a forming a notch that keeps the opening 1 at right angles is formed. A corner metal fitting 3 is provided, and the end edge of the collar 3a of the corner metal fitting and the face plates of panels A and B are fillet welded. However, the shape of the outer periphery of the corner fitting 3 is not limited to an arc, but may be a square or a polygon, and an extruded aluminum alloy is usually used.

(Effect of the invention) The advantage of the present invention is that one face plate of both panels is directly welded to each other, and the other face plate is also welded to each other via a corner fitting that fits into the opening. Therefore, the panels are completely integrated. Therefore, the strength is higher than that of conventional joining methods, and in addition, extruded corner fittings can be used, making it easy to use, and automation of welding also simplifies work.

[Brief explanation of the drawing]

Figures 1 to 4 show honeycomb pavers A and B of the present invention, respectively.
...honeycomb panel, 1... opening, 2... backing material, 3... corner metal fittings, 4... outer wall, 5, 6.7.
...Corner fittings, 3a, 5a, 8a, 7a...
spit.

Claims (1)

[Claims] 1. In a method of joining a honeycomb panel to an outer wall at right angles, the end of the honeycomb panel is cut at an appropriate angle and the leading edge is placed in contact with the outer wall. The contact edge of the face plate is welded, and the corner metal fitting is then fitted into the opening created by the oblique cutting, has a hollow right-angled triangular cross section, and has a collar that contacts the honeycomb panel face plate on one side perpendicular to the outer wall. A method for joining honeycomb panels in which the right-angled end of the corner metal fitting is welded to the outer wall, the honeycomb panel face plate, and the edge of the brim of the corner metal fitting. 2. In the method of horizontally joining two honeycomb panels, the lower edge of one honeycomb panel and the tip edge of the other honeycomb panel cut at an appropriate angle are arranged so as to touch each other. The connecting edges are welded through a backing material, and then the cross section that fits into the opening between both honeycomb panels is a hollow right triangle, and a collar is provided at both ends of the upper side, and each is a face plate of the honeycomb panel. A method for joining honeycomb panels, in which a corner metal fitting is placed in contact with the rim, and the tip of the brim and the face plates of both honeycomb panels are welded. 3. In the method of joining one end of two honeycomb panels to one side of the other, the end of the honeycomb panel to be joined is beveled at an appropriate angle and the end edge face plate is brought into contact with the face plate of the other honeycomb panel. corner metal fittings with a hollow right triangular cross section and a flange on one side that touches the face plate of the beveled honeycomb panels, which fit into the opening between both honeycomb panels. A method of joining honeycomb panels in which the edge of the brim of the corner fitting and the tip of the right angle part are welded to the face plate of the other honeycomb panel. 4. In a method of joining two honeycomb panels at a right angle at a corner at one end of the honeycomb panel, the edge of one honeycomb panel is brought into contact with the edge of the other honeycomb panel so that the openings are at right angles. , the contact part is welded from the opening side, and then a corner metal fitting is arranged that fits into the opening and has a collar on its outer edge so as to be in contact with the end surface of each honeycomb panel side. , a method for joining honeycomb panels in which the edge of the brim of the corner fitting and the face plate of the honeycomb panel are welded.