JP2017164790A - Method for friction welding of plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for friction welding of plates with no requirement for removal of a material plate.SOLUTION: According to this method, plates are stationary on a cradle so that junctions thereof are adjacent to one another, a tab plate is stationary located at a joining completion end, joining is started from the joining start end by a friction welding device, and joining work is stopped at a position of the tab plate at the joining completion end. The, the tab plate is removed. Further, plates are stationary on the cradle so that junctions thereof are adjacent to one another, tab plates are stationary at joining start end and joining completion end respectively, joining is started from the tab plate at the joining start end by the friction welding device, and joining work is stopped at a position of the tab plate at the joining completion end. There are the case that joining is performed from an upper side of the junctions, and the case that joining is performed from a lower side of the junctions.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a friction joining method for plate materials.

  As an example of the prior art, before a rectangular flat plate is bent into a cylindrical shape, the flat plate is pressed so as to leave protrusions on both sides of each end to be abutted. After that, it is bent into a cylindrical shape, and friction welding is started from one end protruding portion of the cylindrical body, and friction bonding is ended from the other end protruding portion. (Patent Document 1)

Japanese Patent No. 4684810

  However, in order to form the protruding portion, both end portions of the material plate are cut out, and then curved and joined to the cylindrical body. And the said protrusion part is excised. After all, the part of the material plate having a considerable width including the protruding portion is cut off. This is a waste of considerable material.

  The present invention solves this problem, and an object of the present invention is to provide a friction joining method for plate materials that does not require cutting out the material plate.

  The plate material friction joining method of the first problem solving means of the present invention comprises placing a plate material on a pedestal, placing the joining portion adjacent to each other, placing a tab plate at the end of joining, and joining start ends with a friction joining device. The joining operation is started at the position of the tab plate at the joining end end.

  The plate material friction welding method of the second problem-solving means of the present invention is a plate material placed on a pedestal, with its joints adjacent to each other, and tab plates placed on the joining start end and joining end end, respectively, and friction joining The apparatus starts joining from the tab plate at the joining start end and stops the joining operation at the position of the tab plate at the joining end end.

In addition to the first or second means, the friction welding method of the plate material of the third problem solving means of the present invention,
It joins from the upper side of the joint.

In addition to the first or second means, the plate material friction welding method of the fourth problem solving means of the present invention,
It joins from the lower side of the said junction part.

  In the present invention, a plate material is placed with its joints adjacent to each other, a tab plate is placed at the joining end end, or the joining end end and the joining start end, respectively, and joining is started from the joining start end with the friction joining device, and the joining is finished. The joining operation is stopped at the position of the end tab plate. Thereafter, the tab plate is removed. Therefore, after the joining work is completed, even if discarded, only a small tab plate is required, and waste of resources can be minimized. In addition, the labor for forming and removing the protrusions as in the prior art can be saved.

It is a front view of the Example apparatus which enforces the joining method of this invention. It is an expansion perspective view of the right end part of FIG. It is an expansion perspective view corresponding to FIG. 2 of another Example. FIG. 5 is an enlarged perspective view of another embodiment that is a main part of an embodiment that is joined from below the joining portion and that corresponds to the right end portion of FIG. 1.

An embodiment of the present invention will be described below with reference to the drawings.
1 and 2, a rail 2 is disposed above the gantry 1 and a friction welding device F that moves on the rail 2 is provided. The device F is suspended from the carriage G, and a disk rod F2 and a pin F3 protrude downward from the lower end of the tool body F1. Then, the two rectangular flat plate materials W are spread on a horizontal surface on the gantry 1, and the joint portions W0 are placed adjacent to each other. The gantry 1 is rectangular horizontally long, and the joint portions W0 of the flat plate materials W and W are provided along the center line along the length direction.

  Next, the rectangular tab plate T is placed at the joining end of the plate material W. The tab plate T has two stationary holes T1, and these stationary holes T1 are placed so as to straddle the extended straight line W00 of the joint. Then, the bolt is screwed and fixed to the screw hole (not shown) of the gantry 1 through the fixed hole T1.

  Then, the friction welding apparatus F moving on the rail 2 arranged above the gantry 1 starts joining from the joining start end and stops the joining operation at the position of the tab plate T at the joining end end. As is conventionally known, the friction welding apparatus F presses the disk rod F2 and the pin F3 against the joint, rotates them, and melts and joins the joint with the frictional heat. Thereafter, the tab plate T is removed. Accordingly, when the joining work is completed, only a small tab plate T is required even if discarded, and the waste of resources can be minimized.

In another embodiment (not shown), tab plates T are placed at the joining start end and the joining end end, respectively. In the friction welding apparatus F, joining is started from the tab plate at the joining start end, and the joining operation is stopped at the position of the tab plate at the joining end end.
FIG. 3 shows still another embodiment. A weight 31 is placed on the tab plate T in place of the bolt.

  FIG. 4 shows still another embodiment, which is joined from below the joining portion. There is a gap 1 a on the center line along the length direction of the gantry 1. The disk and pin of the joining device stand up from below in this gap. On the upper side, the joint portions of the flat plate materials W and W are provided. A weight 32 is placed on the plate material W so as not to be lifted by a pushing force from below.

  Further, the tab plate T placed at the end of joining is fixed with the key-shaped member 11 of the pressing member 10 and the bolt 12 so as not to be lifted by the pushing-up force from below. The upper side of the tab plate T is pressed with one piece of the key-shaped member 11, and the other piece is screwed into the gantry 1 through a bolt 12. Alternatively, a weight 31 as shown in FIG.

Then, with a friction welding device (not shown) that moves on a rail disposed on the lower side of the gantry 1, the joining operation is started from the joining start end, and the joining operation is stopped at the position of the tab plate at the joining end end.
Thereafter, the tab plate is removed.

  The present invention is applied to friction bonding of various members such as a cylindrical body and a shaped steel member having a curved flat plate in addition to a flat plate.

  The present invention is not limited to the embodiments and embodiments described above, and includes various modifications without departing from the scope of the claims.

  The present invention can be used in a friction joining method for plate materials.

W plate F friction welding device F1 tool main body F2 disc bowl F3 pin T tab plate 1 mount 1a gap 2 rail 3 weight 10 pressing member 11 key-shaped member 12 bolt

Claims (4)

Place the plate material on the pedestal, place the joint next to each other, place the tab plate at the end of the joint,
A plate material friction welding method in which joining is started from a joining start end by a friction joining apparatus and joining work is stopped at a position of a tab plate at a joining end end.
Place the plate material on the frame, place the joints adjacent to each other, place the tab plates at the joining start end and joining end end, and start joining from the tab plate at the joining start end with the friction welding device. The plate material friction welding method of stopping the joining work at the position of the tab plate.
The plate material friction welding method according to claim 1, wherein the plate members are joined from above.
  The plate | plate material friction welding method of Claim 1 or 2 joined from the lower side of the said junction part.

Images