JP2018094592A - Divided friction joining method for long plates - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a divided friction joining method for long plates capable of joining the long plates using a joining device having a short stroke, with no need of any large scale gate-shaped structure.SOLUTION: A divided friction joining method for long plates comprises: positioning two long plates in mutually parallel onto a trestle, with joining parts thereof adjacent to each other; placing weights onto the long plates; arranging a friction joining device below the long plates; starting joining at one end specified as a joining start end toward a direction along a joining line; moving the joining device toward the other end; stopping the joining device at a center of the joining line; turning the long plates and the trestle by 180 degrees; performing joining along the joining line while moving the joining device in a reverse direction; returning the joining device to the one end specified as the joining start end; and stopping at a move limit.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a method for split friction joining of long flat plates.

  As an example of the prior art, there has been a friction stir welding method in which a butt portion of a cylindrical member to be welded having a hollow portion is formed by abutting a butt portion of a member to be joined. In this method, the tool of the friction welding apparatus is disposed on the upper side of the abutting portion, and the backing member is in contact with the inner side.

  A core jig having a roller that is brought into contact with the backing member in a rollable manner is arranged in the hollow portion to support the backing member from the inside, and the tool is positioned relative to the core jig from the outside of the hollow member. Keep the relationship. Then, while maintaining the relative positional relationship between the tool and the core jig, at least one of the tool and the core jig is moved in the longitudinal direction of the cylindrical member to be joined, and the abutting portion is joined. (Patent Document 1)

Japanese Patent No. 4323909

  When this technique is applied to make a plurality of flat plates adjacent to each other in parallel and friction-welded in the length direction, the following problems occur. That is, when the joining device is arranged on the upper side of the flat plate material and moved along the joining line, it is necessary to install a large portal frame for installing the joining device. Further, in order to move the welding device while pressing the welding pin from top to bottom, a device for receiving the downward pressing force must be arranged on the lower side and moved in synchronism with the upper bonding device. . Therefore, the joining length is minimized and it is difficult to join a plurality of flat plates with long joining lines.

  The present invention solves the above problems, and an object of the present invention is to provide a split friction joining method for a long flat plate that eliminates the need for a large portal structure and can join a long flat plate with a short-stroke joining device. To do.

  According to the first problem solving means of the present invention, the method of split friction welding of long flat plates is to place two pieces of long plate materials on a pedestal, with the joints adjacent to each other in parallel, and on the long plate material. Place the weight, place the friction welding device on the lower side, start joining from the joining start end of one end along the joining line, move the joining device toward the other end, stop the device at the center of the joining line, The long flat plate and the pedestal are rotated 180 degrees, joined along the joining line while moving the joining device in the opposite direction, returned to the joining start end at one end, and stopped at the movement limit.

  In addition to the first means, the long friction flat plate split friction welding method of the second problem solving means of the present invention mounts a rectangular frame in plan view on an annular rail so as to be rotatable around the center of the ring. Two long plates are placed in parallel with their joints adjacent to each other, and a beam is passed over the ring diameter of the ring rail, and the part corresponding to the center of the ring is The center receiver is fixed, and the center receiver concentrically guides and guides the center positioning member projecting from the lower surface of the gantry.

  According to a third aspect of the present invention, there is provided a split friction joining method for a long flat plate. In addition to the first means, a rectangular base in plan view having a vertical side longer than the rail diameter on an annular rail is arranged around the center of the annular ring. A part of the annular rail is cut out for a moving path of the joining device, two long plates are placed on the frame, and the joints are adjacent to each other in parallel with each other. The beam is passed over the ring diameter of the rail, and a center receiver is fixed to the portion corresponding to the center of the ring. The members are concentrically fitted and guided.

  In this invention, since it joins from the lower side of a flat plate with the friction welding apparatus arrange | positioned on the lower side of a flat plate, a large-scale portal structure became unnecessary. When the joining to the center in the length direction of the flat plate is completed, the flat plate and the pedestal are rotated 180 degrees, the joining device is returned to the original state, and the remaining half of the flat plate is started to be joined. Therefore, a long flat plate can be joined with a joining device having a short stroke.

It is a top view of the apparatus used by one Example of this invention. It is the elements on larger scale of FIG. FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2. FIG. 4 is a sectional view taken along line BB in FIG. It is a top view of other examples. FIG. 6 is an enlarged sectional view taken along the line CC of FIG. It is DD sectional drawing of FIG. It is a top view of other examples.

An embodiment of the present invention will be described below with reference to the drawings.
In the plan views of FIGS. 1 and 2, a rectangular base 20 in plan view is mounted on the annular rail 2 so as to be rotatable around the center of the annular ring. Then, two pieces of the long plate material W (virtual line view) are placed on the gantry in parallel with each other with their joints adjacent to each other, and the friction welding device 10 is disposed on the lower side, and joined from the lower side of the plate material. To do.

  2 to 4, the friction welding device 10 is disposed on the first rail 1 below the plate material. The gantry 20 has a rectangular parallelepiped frame that is long in the movement direction (front-rear direction) and short in the left-right direction. Long vertical beams 23 in the front-rear direction are provided in the vicinity of the center of the upper surface with a gap between them. During this time, the upper part of the friction welding apparatus 10 moves in the front-rear direction. The friction welding device 10 is placed on a carriage 14, and a disk rod 12 and a pin 13 protrude upward from the upper end of the tool body 11.

  In FIGS. 3 to 5, the annular rail 2 extends in the horizontal plane by the support 2 a on the floor surface. And a cross section becomes a V-shaped groove | channel, and becomes a guide of the wheel 24 of the postcard 20 mentioned later. A beam member 2b is handed over the ring diameter of the ring rail 2, and a center receiving body 2c for guiding a center positioning member 25 projecting on the lower surface of the frame described later is provided at a portion corresponding to the center of the ring. It is fixed. The center receiver 2c is formed by cutting a part of an annular side wall that is concentric with the center of the ring of the ring rail 2.

  And a positioning member is provided so that the mount frame 20 can be rotated around the center of the ring on the ring rail 2 as shown in FIGS. That is, a center positioning member 25 protruding downward is provided on the lower surface of the portion corresponding to the center of the rail ring of the vertical beam 23. When the gantry 20 is placed on the annular rail 2, the center positioning member 25 constitutes an annular projecting portion whose center is in the horizontal plane on the top surface of the gantry. In the shape of a shallow dish, the space between the two vertical beams 23 is cut off. The center positioning member 25 is accommodated concentrically inside the rail-side center receiver 2c. This center receiver 2c is also in the shape of a shallow dish, and the space between the two vertical beams 23 is cut off.

  As shown in FIGS. 2 and 3, a plurality of wheels 24 (three in the figure) are respectively provided on the lower surfaces of the two lateral sides 22 of the gantry 20, and these wheels are guided in the grooves of the annular rail 2. In this manner, the gantry 20 can be rotated around the center of the ring of the annular rail 2 in a state where the center positioning member 25 is accommodated in the center receiver 2c.

  As shown in FIG. 2, a vertical center indicating line 20 a is drawn on the horizontal side 22 of the upper surface of the gantry 20 at a position located at the center of the interval between the vertical beams 23. In addition, a horizontal center indicating line 20 b is drawn on the vertical side 21 on the center line of the vertical side of the gantry passing through the rotation center of the gantry 20.

  In joining work, a long plate material is lifted by an electromagnetic adsorption pad (not shown) installed above the gantry 20 and placed on the gantry 20 upper surface while the operator confirms the position. That is, two long plate materials are placed on a gantry with their joints adjacent to each other in parallel. At this time, the longitudinal direction of the plate material is parallel to the vertical side 21 of the gantry 20, and the joining line W0 is positioned between the two vertical beams 23. Then, the joining line is aligned with the vertical center indicating line 20a of the gantry. The center line in the longitudinal direction of the plate material is aligned with the horizontal center indicating line 20b of the gantry so that it passes through the center of rotation of the gantry 20. Next, the weight Y is placed on the long plate material by a vacuum suction pad (not shown) arranged above the gantry.

  Then, joining is started from the joining start end at one end along the joining line W0, the joining device 10 is moved toward the other end, and the device is moved to the LS (limit switch) at the movement limit of the gantry rotation center position that is the center of the joining line. ) To stop. Next, the pin 13 of the joining device is lowered. Thereafter, the long flat plate and the pedestal are rotated 180 degrees. And the pin 13 of the joining apparatus 10 is raised and joining is started, a joining apparatus is returned to the joining start end of one end along a joining line, and is stopped by a movement limit. By doing in this way, the joining of the board of the length twice as long as the movement range of the joining apparatus 10 was attained. Moreover, since the joining device joins in a reciprocating path, waste can be eliminated.

  FIG. 8 shows another embodiment in which the diameter of the annular rail 2 is considerably smaller than the vertical length of the gantry 20. This makes it easier to manufacture the rail, and also reduces the installation area. That is, a rectangular base 20 in plan view having a vertical side longer than the rail diameter is mounted on the annular rail 2 so as to be rotatable around the center of the annular ring. Here, a part of the annular rail 2 becomes a notch 2d for the moving path of the joining device 10, and wheels 24 (total of four) are provided on the lower surface where the vertical side 21 intersects the annular rail 2. Is provided.

  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 split friction joining method for long flat plates.

W strip, Y weight,
1 1st rail 2 ring rail 2a support 2b beam 2c central receiver 2d notch LS (limit switch)
DESCRIPTION OF SYMBOLS 10 Friction welding apparatus 11 Tool main body 12 Disc bowl 13 Pin 14 Cart
14a wheel 20 mount 20a longitudinal center indicator line 20b lateral center indicator line 21 longitudinal side 22 lateral side 23 longitudinal beam 24 wheel 25 center positioning member

Claims (3)

Two pieces of long plate material are placed on the frame, with their joints placed next to each other in parallel, a weight is placed on the long plate material, a friction welding device is placed on the lower side, and along the joint line Start joining from the joining start end of one end, move the joining device toward the other end, stop the device at the center of the joining line, rotate the long plate and the pedestal 180 degrees, and move the joining device in the opposite direction This is a method of split friction welding of long flat plates that are joined along a joining line while returning to the joining start end at one end and stopped at the movement limit.
A rectangular frame in plan view is placed on the ring rail so as to be rotatable around the center of the ring, and two long plates are placed on the frame so that the joints are adjacent to each other in parallel. A beam member is passed on the ring diameter of the ring rail, and a center receiver is fixed to a portion corresponding to the center of the ring, and the center receiver has a center positioning member protruding from the bottom surface of the mount. The method of split friction joining of long flat plates according to claim 1, wherein the guide plates are concentrically fitted and guided.
  A rectangular base in plan view having a vertical side longer than the diameter of the rail is mounted on the ring rail so as to be rotatable around the center of the ring, and a part of the ring rail is cut out for the movement path of the joining device. The two long plate members are placed on the frame with the joints adjacent to each other in parallel with each other, and the beam member is passed on the ring diameter of the rail. The portion corresponding to the center of the ring is 2. A split friction joining method for a long flat plate according to claim 1, wherein a center receiver is fixed, and the center receiver concentrically guides and guides a center positioning member protruding from the lower surface of the gantry.

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