JP6804793B2 - Friction joining method for long flat plates - Google Patents

Description

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

As an example of the conventional technique, there is a friction stir welding method for joining a butt portion of a tubular member to be joined having a hollow portion, which is formed by butting the butt portion of the member to be joined. In this method, the tool of the friction stir welding device is placed on the upper side of the butt portion, and the backing member is brought into contact with the inside.

A core jig having a roller that is rotatably contacted with the backing member 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. Hold 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 tubular member to be joined to join the butt portions. (Patent Document 1)

Japanese Patent No. 4323909

When two long flat plates are placed adjacent to each other in parallel and frictionally joined in the length direction by applying this technique, 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-scale portal frame for installing the joining device. In addition, in order to move the joining device while pressing the welding pin from top to bottom, the device for receiving the downward pressing force must be placed on the lower side and moved in synchronization with the upper joining device. .. Therefore, the length of the long flat plate is minimized, and it is difficult to join the long long flat plate.

The present invention solves the above problems, and an object of the present invention is to provide a friction joining method for long flat plates, which eliminates the need for a large-scale portal structure and can join long long flat plates.

In the friction joining method of a long flat plate as the first problem solving means of the present invention, two long plate materials are placed on a pedestal with their joints adjacent to each other in parallel with each other, and the weight is placed on the long plate material. A friction joining device is placed on the lower side, joining is started from the joining start end at one end along the joining line, the joining device is moved toward the other end, the device is stopped at the movement limit, and the joining device is set. Return to the joining start end at one end, move the gantry on which the long flat plate is placed to the joining start end side, make the second joining start point of the long flat plate coincide with the joining start point of the joining device, and then join in the same manner. It is something that will be done.

In the method of friction joining a long flat plate of the second problem solving means of the present invention, in addition to the first means, the gantry on which the long flat plate is placed is moved to the joining start end side to start the second joining of the long flat plate. In the step of matching the point with the joining start point of the joining device, the gantry and the joining device are synchronized and returned. When the joining is started, the clutch of the trolley of the joining device is turned on and the axle of the trolley is used. The drive shaft of the drive source is connected, the joining device is moved, the device is stopped at the movement limit, and then the suction pad is operated to suck the suction pad on the lower surface of the beam material constituting the mounting surface which is the upper surface of the gantry. The clutch of the carriage of the joining device is turned off, the axle and the drive shaft of the drive source are disconnected, then the gantry is moved in the anti-joining direction, and the joining device and the gantry are integrally moved together with the plate material in the anti-joining direction to join. When the device returns to the starting point, it is stopped, so that the long flat plate W is joined from the joining starting point to the first section.

In the present invention, since the friction joining device arranged on the lower side of the plate material is used for joining from the lower side of the plate material, a large-scale portal structure is not required. Further, when the joining of the plate materials was completed, the joining device was returned to the original position, the plate materials were sent in the direction of the joining start point, and the joining of the next joining portion was started. Therefore,
Long flat plates could be joined, and there was no limit on the joining length.

It is a front view of the apparatus used in one Example of this invention. FIG. 1 is a cross-sectional view taken along the line AA of FIG. It is a top view of FIG. It is an enlarged front view corresponding to the part of FIG. 1 of another embodiment. FIG. 4 is a cross-sectional view taken along the line BB of FIG.

An embodiment of the present invention will be described below with reference to the drawings.
In FIGS. 1, 2 and 3, the gantry 20 moves on the second rail R2 by the wheels 24. The long plate material W is placed on the gantry 20, and the friction stir welding device 10 is arranged on the first rail R1 below the long plate material. The gantry 20 is composed of a rectangular parallelepiped frame whose outer shape is long in the moving direction (vertical direction) and short in the left-right direction (horizontal direction). The upper rectangular frame constituting the upper surface is composed of a vertical side 21 and a horizontal side 22, and two long beam members 23 in the vertical direction are provided in the center of the upper surface at intervals. A vertical center indicator line 20a is displayed at the center of the horizontal side corresponding to the center line of the interval between the two beam members 23, 23.

The upper part of the friction stir welding device 10 moves vertically between the beam members 23. The friction stir welding device 10 is mounted on a carriage 14, and a disk collar 12 and a pin 13 project upward from the upper end of the tool body 11.

In the joining work, two vertically long long plate members W (virtual lines) are placed on the gantry 20 with their joints adjacent to each other in parallel with each other. At this time, the joining line W0 is aligned with the vertical center indicating line 20a on the horizontal side so as to be located at the center of the interval between the two beam members 23. Next, the weight Y is placed on the long plate member W by the vacuum suction pad (not shown) arranged above the gantry 20.

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 joining device 10 is stopped by the LS (limit switch) at the movement limit. Next, the pin 13 of the joining device 10 is lowered, the drive motor of the carriage 14 is reversed, the joining device 10 is returned to the joining start end, and the joining device 10 is stopped at the LS. Further, the gantry 20 on which the long flat plate W is placed is moved to the joining start end side so that the second joining start point of the long flat plate W coincides with the joining start point of the joining device 10.

Similarly, the joining device 10 is moved toward the other end along the joining line W0 to join, and is stopped by the LS (limit switch) at the movement limit. In the same way, the long flat plate is moved and the joining device is returned. When the joining device 10 finishes joining before the movement limit, the operator confirms it and stops the joining device. In this way, even with a short moving distance of the joining device 10, it is possible to join a long flat plate having a length many times longer than that.

When the work is completed, the weight is removed by the vacuum suction pad, and then the joined plate is lifted by the electromagnetic suction pad (not shown) and carried to the product storage area on the side of the gantry. The gantry 20 and the joining device 10 are returned to the starting points, respectively.

Other embodiments will be described with reference to FIGS. 4 and 5. In this example, the gantry 20 and the joining device 10 are synchronized and returned. This makes it possible to shorten the working time. In the drive unit 15 of the carriage 14 of the joining device, the drive gear 15b is connected to the drive shaft 15a connected to the drive source (electric motor), and the passive shaft 15d supporting the passive gear 15c that meshes with the drive gear 15a is via an electromagnetic clutch 15e. It is connected to the axle 15f of the trolley. Further, the carriage 14 is provided with an electromagnetic suction pad 4 that can be raised and lowered by an elevator (piston cylinder) 5 via an arm 3.

When starting the joining, the electromagnetic clutch 15e of the carriage 14 of the joining device 10 is turned on, and the axle 15f of the carriage and the drive shaft 15a of the drive source are connected. Then, the joining device 10 is moved, and the device is stopped by the LS at the movement limit. Then, the electromagnetic suction pad 4 is operated to suck the electromagnetic suction pad 4 onto the lower surface of the steel beam member 23 constituting the mounting surface which is the upper surface of the gantry 20. Then, the electromagnetic clutch 15e of the carriage 14 of the joining device 10 is turned off, and the axle 15f and the drive shaft 15a of the drive source are disconnected.

Next, the operator moves the gantry 20 in the anti-joining direction. At this time, since the wheels 14a are free with respect to the axle 15f, the joining device 10 and the gantry 20 move together with the plate member W in the anti-joining direction. Then, when the joining device 10 returns to the starting point, the LS operates and stops. With this, the long flat plate W from the joining start point to the first section is joined. Next, the electromagnetic clutch 15 on the axle 15f of the bogie 14 of the joining device is turned on again, the bogie 14 starts moving in the joining direction, and the joining of the second section starts. Then, they are joined in the same manner.

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

The present invention can be used as a friction joining method for long flat plates.

W flat plate, Y weight, LS limit switch 1 1st rail 2 2nd rail 3 Arm 4 Electromagnetic suction pad 5 Elevator (piston / cylinder)
10 Friction stir welding device 11 Tool body 12 Disc collar 13 pin 14 Bogie
14a Wheels 15 Bogie drive
15a drive shaft
15b drive gear
15c passive gear
15d passive axis
15e clutch
15f Axle 20 Stand 20a Vertical center indicator line 21 Vertical side 22 Horizontal side 23 Vertical beam 24 Wheels

Claims (2)

Two pieces of long plate material are placed on the gantry with their joints adjacent to each other in parallel with each other, a weight is placed on the long plate material, a friction joining device is placed on the lower side, and along the joint line. Joining is started from the joining start end at one end, the joining device is moved toward the other end, the device is stopped at the movement limit, the joining device is returned to the joining start end at one end, and the gantry on which the long flat plate is placed is joined. A friction joining method for long flat plates, which is moved to the start end side, the second joining start point of the long flat plate is made to coincide with the joining start point of the joining device, and the long flat plates are joined in the same manner.
In the step of moving the gantry on which the long flat plate is placed to the joining start end side and aligning the second joining start point of the long flat plate with the joining start point of the joining device, the gantry and the joining device are synchronized and returned. When joining is started, the clutch of the carriage of the joining device is turned on, the axle of the carriage and the drive shaft of the drive source are connected, the joining device is moved, the device is stopped at the movement limit, and then Operate the suction pad to suck it on the lower surface of the beam material that constitutes the mounting surface, which is the upper surface of the gantry, disengage the clutch of the trolley of the joining device, disconnect the axle and the drive shaft of the drive source, and then reverse the gantry It is moved in the joining direction, the joining device and the gantry are moved together with the plate material in the anti-joining direction, and when the joining device returns to the starting point, it is stopped, so that the long flat plate W is moved from the joining start point to the first section. The method for friction joining a long flat plate according to claim 1, wherein the long flat plates are joined.

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