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WO2020032141A1 - Friction stir welding device and operation method therefor - Google Patents

Friction stir welding device and operation method therefor Download PDF

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Publication number
WO2020032141A1
WO2020032141A1 PCT/JP2019/031254 JP2019031254W WO2020032141A1 WO 2020032141 A1 WO2020032141 A1 WO 2020032141A1 JP 2019031254 W JP2019031254 W JP 2019031254W WO 2020032141 A1 WO2020032141 A1 WO 2020032141A1
Authority
WO
WIPO (PCT)
Prior art keywords
pin member
stir welding
friction stir
shoulder
pin
Prior art date
Application number
PCT/JP2019/031254
Other languages
French (fr)
Japanese (ja)
Inventor
良司 大橋
良崇 村松
正樹 武岡
拓也 福田
Original Assignee
川崎重工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 川崎重工業株式会社 filed Critical 川崎重工業株式会社
Priority to KR1020217005822A priority Critical patent/KR20210038641A/en
Priority to JP2020535855A priority patent/JPWO2020032141A1/en
Priority to CN201980047312.9A priority patent/CN112423929A/en
Publication of WO2020032141A1 publication Critical patent/WO2020032141A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B23K20/1245Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
    • B23K20/125Rotary tool drive mechanism
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B23K20/1225Particular aspects of welding with a non-consumable tool
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/22Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/18Dissimilar materials

Definitions

  • the present invention relates to a friction stir welding apparatus and an operation method thereof.
  • a friction point joining apparatus for joining an aluminum material and a galvanized steel sheet is known (for example, see Patent Document 1).
  • a tool temperature measuring device for measuring a temperature of a rotating tool and a material temperature measuring device for measuring a temperature of a joining portion between an aluminum material and a galvanized steel sheet are disclosed.
  • a feedback device performs feedback control on a servomotor that rotates the rotary tool based on temperature information of the tool temperature measuring device and the material temperature measuring device.
  • the distance of the tip of the tool is maintained in the range of 0.1 to 0.3 mm on the aluminum material side, and the aluminum material and the galvanized steel sheet are used.
  • the temperature of the joint is set in the range of 320 to 350 ° C., the joint is made a new surface, and friction point welding is performed while generating an intermetallic compound of Fe and Al at the joint.
  • the friction point joining device disclosed in Patent Document 1 needs to be provided with two temperature measuring devices, which increases the manufacturing cost of the device. Further, in the friction point welding device disclosed in Patent Document 1, it is necessary to perform feedback control based on temperature information from a temperature measuring device, and the position of the tip of the tool must be maintained within a predetermined range. Because of this, the control program became complicated and there was still room for improvement.
  • the present invention has been made in order to solve the above-described problems, and has a simple configuration and a friction stir welding apparatus and a method of operating the same that can join an aluminum member and a galvanized steel member with high strength.
  • the purpose is to provide.
  • a friction stir welding apparatus is a friction stir welding apparatus that is made of an aluminum member and a galvanized steel member and joins by softening an object to be welded by friction heat.
  • a pin member formed in a columnar shape and configured to be capable of rotating around an axis and moving forward and backward in a direction along the axis, and a cylindrical member, and the pin member is inserted therein.
  • a shoulder member configured to be able to advance and retreat in a direction along the axis, and a configuration in which the pin member is rotated around the axis, and the shoulder member is not rotated around the axis.
  • a linear drive for moving the pin member and the shoulder member forward and backward along the axis, wherein the aluminum member faces the pin member. Are sea urchin placed.
  • the amount of heat input from the shoulder member to the galvanized steel member via the aluminum member can be reduced, and the melting of zinc can be suppressed. For this reason, it is possible to suppress the molten zinc from entering the aluminum member, and it is possible to suppress the occurrence of liquefaction cracks due to the reaction between zinc and aluminum. Therefore, the aluminum member and the galvanized steel member can be joined with high strength.
  • the operation method of the friction stir welding apparatus is an operation method of the friction stir welding apparatus, which comprises an aluminum member and a galvanized steel member, and joins by softening an object to be joined by frictional heat
  • the friction stir welding apparatus has a pin member formed in a columnar shape and configured to be rotatable around an axis and to advance and retreat in a direction along the axis, and a pin member formed in a cylindrical shape, Is inserted therein, and a shoulder member configured to be able to advance and retreat in a direction along the axis, and the pin member is rotated around the axis, and the shoulder member is rotated around the axis.
  • a rotary driver configured not to rotate, and a linear drive that moves the pin member and the shoulder member forward and backward along the axis, and the aluminum member includes: The pin member is arranged so as to face the pin member, and the pin member is rotated, and in a state where the shoulder member is not rotated, the tip end of the pin member presses the joined portion of the article to be joined.
  • the linear drive and the rotary drive operate (A)
  • the linear drive and the rotary drive operate to cause the softened galvanized steel member to pierce the softened aluminum member.
  • the tip of the pin member reaches the predetermined first position (B), after the (B), the tip of the pin member is rotated while the pin member is rotated.
  • C operating the linear drive and the rotary drive so as to pull out the part from the part to be joined.
  • the amount of heat input from the shoulder member to the galvanized steel member via the aluminum member can be reduced, and the melting of zinc can be suppressed. For this reason, it is possible to suppress the molten zinc from entering the aluminum member, and it is possible to suppress the occurrence of liquefaction cracks due to the reaction between zinc and aluminum. Therefore, the aluminum member and the galvanized steel member can be joined with high strength.
  • the softened galvanized steel member pierces the softened aluminum member, an anchor effect can be obtained and the tensile strength of the article to be joined can be improved.
  • FIG. 1 is a schematic diagram showing a schematic configuration of the friction stir welding apparatus according to the first embodiment.
  • FIG. 2 is a flowchart showing an example of the operation of the friction stir welding apparatus according to the first embodiment.
  • FIG. 3 is a schematic diagram illustrating a main part of the friction stir welding apparatus according to the first embodiment.
  • FIG. 4 is a schematic diagram showing a schematic configuration of the friction stir welding apparatus according to the second embodiment.
  • the friction stir welding apparatus is a friction stir welding apparatus that is made of an aluminum member and a galvanized steel member and is joined by softening an object to be joined by frictional heat, and is formed in a columnar shape.
  • a pin member configured to be capable of rotation about an axis and advancing and retreating in a direction along the axis; and a cylindrical member formed with the pin member inserted therein and a direction along the axis.
  • a rotation driver configured to rotate the pin member around the axis and not to rotate the shoulder member around the axis, a pin member, and a shoulder member.
  • a linear drive unit for moving the actuator forward and backward along the axis.
  • the aluminum member is disposed so as to face the pin member.
  • the tip of the pin member may be formed so as to protrude beyond the tip of the shoulder member.
  • the tip of the pin member presses the portion to be welded of the workpiece.
  • A controlling the linear drive and the rotary drive, and controlling the linear drive and the rotary drive so that the softened galvanized steel member penetrates the softened aluminum member so as to pierce the softened aluminum member.
  • B controlling the linear drive and the rotary drive.
  • the control device may further include a control device.
  • the rotary driver has a motor and a transmission mechanism for transmitting the rotational drive of the motor to the pin member, and the transmission mechanism transmits the rotational drive of the motor to the shoulder member. It may be configured not to transmit.
  • FIG. 1 is a schematic diagram showing a schematic configuration of the friction stir welding apparatus according to the first embodiment.
  • the friction stir welding apparatus 100 includes a pin member 1, a shoulder member 2, a tool fixing device 3, a linear motion drive 4, a rotary drive 5, a backing support member 6, and the like. , A backing member 7, a robot 8, and a control device 110, and are configured to soften a joint portion Wa of a joint object W by frictional heat and join the joints.
  • the workpiece W is composed of a plate-shaped aluminum member W1 and a plate-shaped galvanized steel member W2.
  • a configuration is adopted in which the workpiece W is composed of the plate-shaped aluminum member W1 and the plate-shaped galvanized steel member W2, but the present invention is not limited to this.
  • the shape of W (aluminum member W1 and galvanized steel member W2) is arbitrary, and may be, for example, a rectangular parallelepiped shape or an arc shape.
  • the pin member 1, the shoulder member 2, the tool fixing device 3, the linear motion driving device 4, and the rotation driving device 5 are provided on an upper part of a backing support member 6 composed of a C-type gun (C-type frame). .
  • a backing member 7 is provided below the backing support member 6.
  • the pin member 1 and the shoulder member 2 and the backing member 7 are attached to the backing support member 6 at positions facing each other.
  • the backing support member 6 is attached to the tip of the robot 8.
  • a robot of a horizontal articulated type, a vertical articulated type, or the like can be employed.
  • the friction stir welding apparatus 100 according to the first embodiment is not limited to the case where the apparatus is applied to the robot 8.
  • known processing such as an NC machine tool, a large C frame, and an automatic riveter may be used. It may be applied to equipment for use.
  • the backing support member 6 is configured by a C-shaped gun, but is not limited to this.
  • the backing support member 6 is configured to support the pin member 1 and the shoulder member 2 so as to be able to advance and retreat, and to support the backing member 7 at a position facing the pin member 1 and the shoulder member 2. It may be.
  • the backing member 7 is formed in a flat plate shape, and is configured to support the workpiece W.
  • the configuration of the backing member 7 is not particularly limited as long as it can appropriately support the workpiece W so that friction stir welding can be performed.
  • the backing member 7 may be configured such that, for example, a plurality of backing members having various shapes are separately prepared and can be replaced according to the shape of the workpiece W.
  • the pin member 1 and the shoulder member 2 are supported by a tool fixing device 3, and are configured to be driven up and down in a vertical direction by a linear motion driver 4.
  • a linear motion driver 4 for example, an electric motor (servo motor) and a ball screw or a linear guide may be used, or an air cylinder or the like may be used.
  • the pin member 1 is formed in a substantially columnar shape, and is configured to be rotatable around the axis Xr of the pin member 1 by the rotation driver 5.
  • the rotation driver 5 has a motor 51 and a transmission mechanism 52 that transmits the rotation of the motor 51 to the pin member 1.
  • the motor 51 for example, an electric motor (servo motor) may be used.
  • the transmission mechanism 52 is configured not to transmit the rotation drive of the motor 51 to the shoulder member 2.
  • a rotation transmission mechanism using a known gear or the like may be used.
  • the transmission mechanism 52 mechanically transmits the rotation drive from the motor 51 only to the pin member 1, and transmits the rotation drive from the motor 51 to the shoulder member 2.
  • the present invention is not limited to this.
  • the transmission mechanism 52 employs a configuration in which the rotation drive from the motor 51 is electrically transmitted only to the pin member 1 and the rotation drive from the motor 51 is not transmitted to the shoulder member 2. Is also good.
  • “electrically” may be a mode in which the transmission mechanism 52 does not transmit the rotation drive from the motor 51 to the shoulder member 2 because power (current) is not supplied to the transmission mechanism 52.
  • control device 110 when control device 110 outputs an electric signal (control signal) for inhibiting operation to shoulder member 2 from transmission mechanism 52, transmission mechanism 52 does not transmit the rotation drive from motor 51 to shoulder member 2. It may be.
  • the shoulder member 2 is formed in a substantially cylindrical shape having a hollow, and the pin member 1 is inserted into the hollow of the shoulder member 2. Further, in the first embodiment, pin member 1 and shoulder member 2 are arranged such that tip portion 1a of pin member 1 protrudes beyond tip portion 2a of shoulder member 2. Further, as described above, the shoulder member 2 is configured so as not to rotate around the axis Xr by the rotation driver 5.
  • the pin member 1 and the shoulder member 2 are configured to be movable forward and backward by the linear motion driver 4, but the present invention is not limited to this.
  • a mode in which the pin member 1 and the shoulder member 2 are configured to be able to move forward and backward independently of each other may be adopted.
  • the control device 110 includes a processing unit such as a microprocessor and a CPU, and a storage unit such as a ROM and a RAM (not shown).
  • the storage device stores information such as a basic program and various fixed data.
  • the arithmetic processing unit reads and executes software such as a basic program stored in the storage device, and controls various operations of the linear drive unit 4, the rotation drive unit 5, and the robot 8.
  • the control device 110 may be configured by a single control device 110 that performs centralized control, or may be configured by a plurality of control devices 110 that perform distributed control in cooperation with each other. Further, the control device 110 may be configured by a microcomputer, and may be configured by an MPU, a PLC (Programmable Logic Controller), a logic circuit, or the like.
  • FIG. 2 is a flowchart showing an example of the operation of the friction stir welding apparatus according to the first embodiment.
  • FIG. 3 is a schematic diagram showing a main part of the friction stir welding apparatus according to the first embodiment, and shows a state where friction stir welding is performed.
  • the control device 110 drives the rotation driver 5 to rotate the pin member 1 at a predetermined rotation speed (for example, 500 to 3000 rpm) (step S101).
  • the control device 110 drives the linear motion driver 4 while rotating the pin member 1 and not rotating the shoulder member 2 to advance the pin member 1 and the shoulder member 2, and The tip of the member 1 is brought into contact with the portion Wa to be welded of the workpiece W (Step S102).
  • control device 110 drives the linear motion driver 4 so that the distal end of the pin member 1 moves to a predetermined first position set in advance (step S103). At this time, the control device 110 controls the linear motion driver 4 so that the pin member 1 presses the workpiece W with a predetermined pressing force (for example, 4 kN to 70 kN).
  • a predetermined pressing force for example, 4 kN to 70 kN.
  • the predetermined rotation speed and the predetermined pressing force can be appropriately set in advance by experiments and the like.
  • the position information of the tip of the pin member 1 is detected by a position detector (not shown) and output to the control device 110.
  • the first position is defined as 0% when the surface of the galvanized steel member W2 in contact with the aluminum member W1 is 0% and the surface of the galvanized steel member W2 in contact with the backing member 7 is 100%.
  • % Means a position arbitrarily set between 100% and 100%. From the viewpoint of improving the bonding strength, the first position is preferably closer to the surface of the galvanized steel member W2 that contacts the backing member 7, and may be 25% or more, or 50% or more. May be 75% or more, 80% or more, 90% or more, or 95% or more.
  • the pin member 1 comes into contact with the portion Wa to be welded of the workpiece W, and frictional heat is generated by the friction between the distal end portion of the pin member 1 and the portion Wa to be welded.
  • the portion Wa is softened and plastic flow occurs.
  • the second softened portion 42 which is the softened portion of the galvanized steel member W2
  • the first softened portion 41 which is the softened portion of the first portion.
  • the pin member 1 and the shoulder member 2 are configured to rotate. , The amount of heat input to the aluminum member W1 is reduced. Thereby, the amount of heat input from the aluminum member W1 to the galvanized steel member W2 can be reduced, and the melting of zinc can be suppressed.
  • the aluminum member W1 and the galvanized steel member W2 can be joined with high strength.
  • the second softened portion 42 that has entered the first softened portion 41 is referred to as an anchor portion.
  • the control device 110 determines whether or not the distal end of the pin member 1 has reached the first position based on the positional information of the distal end of the pin member 1 detected by a position detector (not shown). (Step S104). When the control device 110 determines that the distal end of the pin member 1 has not reached the first position (No in step S104), the control device 110 continues until the distal end of the pin member 1 reaches the first position. Each processing of steps S103 to S104 is executed. On the other hand, when the control device 110 determines that the tip end of the pin member 1 has reached the first position (Yes in step S104), the control device 110 executes the process of step S105.
  • step S105 the control device 110 pulls out the distal end of the pin member 1 from the portion to be joined Wa while rotating the pin member 1 and not rotating the shoulder member 2 (the pin member 1 and the shoulder member 2). Is moved away from the surface of the workpiece W). Then, when the distal end portion of the pin member 1 is pulled out of the joint Wa, the control device 110 stops the rotation driver 5 so as to stop the rotation of the pin member 1 and ends the program. In the case of joining a plurality of joints Wa, the control device 110 may be configured to start joining of the next joint Wa without stopping the rotation of the pin member 1. .
  • the second softened portion 42 of the galvanized steel member W2 is formed. And the aluminum member W1 enters the first softened portion 41, and the anchor effect such that the strength against tensile shear increases and the peel strength relatively increases.
  • the shoulder member 2 is configured not to rotate. Therefore, the amount of heat input from the shoulder member 2 to the galvanized steel member W2 via the aluminum member W1 can be reduced, and the melting of zinc can be suppressed.
  • the aluminum member W1 and the galvanized steel member W2 can be joined with high strength.
  • the friction stir welding apparatus according to the second embodiment is the friction stir welding apparatus according to the first embodiment, wherein the rotation driver is a motor, and a transmission mechanism that transmits rotation drive of the motor to the pin member and the shoulder member; And a blocking mechanism for blocking transmission of rotation of the motor to the shoulder member.
  • the rotation driver is a motor, and a transmission mechanism that transmits rotation drive of the motor to the pin member and the shoulder member; And a blocking mechanism for blocking transmission of rotation of the motor to the shoulder member.
  • FIG. 4 is a schematic diagram showing a schematic configuration of the friction stir welding apparatus according to the second embodiment.
  • the friction stir welding apparatus 100 according to the second embodiment has the same basic configuration as the friction stir welding apparatus 100 according to the first embodiment, but differs in the configuration of the rotary driver 5. .
  • the rotation driver 5 blocks a motor 51, a transmission mechanism 52 that transmits the rotation of the motor 51 to the pin member 1 and the shoulder member 2, and a transmission of the rotation of the motor 51 to the shoulder member 2. And a block mechanism 53 that performs the operation.
  • the transmission mechanism 52 includes a first transmission mechanism 52a that transmits the rotational drive of the motor 51 to the pin member 1, and a second transmission mechanism 52b that transmits the rotational drive of the motor 51 to the shoulder member 2.
  • the block mechanism 53 may be configured to mechanically or electrically transmit the rotational drive from the motor 51 only to the pin member 1 and not transmit the rotational drive from the motor 51 to the shoulder member 2. .
  • “mechanically” may mean, for example, a mode in which the rotational drive from the motor 51 is not transmitted to the shoulder member 2 by the block mechanism 53 releasing the engagement of the gears or the like. Further, for example, a mode in which the rotation drive from the motor 51 is not transmitted to the shoulder member 2 by the block mechanism 53 stopping the rotation of the gears or the like may be used.
  • the term “electrically” refers to, for example, a mode in which the rotation drive from the motor 51 is not transmitted from the transmission mechanism 52 to the shoulder member 2 because the block mechanism 53 does not supply electric power (current) to the transmission mechanism 52. There may be. Further, for example, when an electrical signal (control signal) for prohibiting the operation of the transmission mechanism 52 to the shoulder member 2 is output from the control device 110 to the transmission mechanism 52, the rotation drive from the motor 51 is transmitted to the shoulder member 2. It may be an aspect that is not performed. In this case, the control device 110 has the function of the block mechanism 53.
  • the friction stir welding apparatus 100 according to the second embodiment configured as described above has the same operation and effect as the friction stir welding apparatus 100 according to the first embodiment.
  • the friction stir welding apparatus and the operation method of the present invention are useful because the aluminum member and the galvanized steel member can be joined with a high strength with a simple configuration.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

A friction stir welding device that joins a workpiece (W) to be joined, by softening same using heat friction, said workpiece comprising an aluminum member (W1) and a galvanized steel member (W2). The friction stir welding device comprises: a pin member (1); a shoulder member (2) that is formed cylindrically, has the pin member (10) inserted therein, and is configured so as to be capable of advancing and retracting in a direction along the axis (Xr) thereof; a rotational driver (5) configured so as to rotate the pin member (1) around the axis (Xr) but not rotate the shoulder member (2); and a linear motion driver (4) that advances and retracts the pin member (1) and the shoulder member (2) along the axis (Xr). The aluminum member (W1) is arranged so as to face the pin member (1).

Description

摩擦攪拌接合装置及びその運転方法Friction stir welding apparatus and operation method thereof
 本発明は、摩擦攪拌接合装置及びその運転方法に関する。 The present invention relates to a friction stir welding apparatus and an operation method thereof.
 アルミニウム材と亜鉛メッキ鋼板とを接合する摩擦点接合装置が知られている(例えば、特許文献1参照)。特許文献1に開示されている摩擦点接合装置では、回転ツールの温度を測定するためのツール温度測定器と、アルミニウム材と亜鉛メッキ鋼板の接合部の温度を測定するための材料温度測定器と、を備え、フィードバック装置が、ツール温度測定器と材料温度測定器の温度情報に基づき、回転ツールを回転させるサーボモータにフィードバック制御をかけている。 摩擦 A friction point joining apparatus for joining an aluminum material and a galvanized steel sheet is known (for example, see Patent Document 1). In the friction point joining device disclosed in Patent Document 1, a tool temperature measuring device for measuring a temperature of a rotating tool, and a material temperature measuring device for measuring a temperature of a joining portion between an aluminum material and a galvanized steel sheet are disclosed. And a feedback device performs feedback control on a servomotor that rotates the rotary tool based on temperature information of the tool temperature measuring device and the material temperature measuring device.
 具体的には、特許文献1に開示されている摩擦点接合装置では、ツールの先端の距離をアルミニウム材側に0.1~0.3mmの範囲に維持し、かつ、アルミニウム材と亜鉛メッキ鋼板の接合部の温度を320~350℃の範囲にすることで接合部を新生面とし、接合部にFeとAlの金属間化合物を生成しながら摩擦点接合を行っている。 Specifically, in the friction point welding apparatus disclosed in Patent Document 1, the distance of the tip of the tool is maintained in the range of 0.1 to 0.3 mm on the aluminum material side, and the aluminum material and the galvanized steel sheet are used. By setting the temperature of the joint in the range of 320 to 350 ° C., the joint is made a new surface, and friction point welding is performed while generating an intermetallic compound of Fe and Al at the joint.
特開2016-124002号公報JP 2016-12402 A
 しかしながら、特許文献1に開示されている摩擦点接合装置では、2つの温度測定器を備える必要があり、装置の製造コストが増加する。また、特許文献1に開示されている摩擦点接合装置では、温度測定器からの温度情報に基づいて、フィードバック制御を行う必要があり、かつ、ツールの先端の位置を所定の範囲に維持しなければいけないため、制御プログラムが複雑となり、未だ改善の余地があった。 However, the friction point joining device disclosed in Patent Document 1 needs to be provided with two temperature measuring devices, which increases the manufacturing cost of the device. Further, in the friction point welding device disclosed in Patent Document 1, it is necessary to perform feedback control based on temperature information from a temperature measuring device, and the position of the tip of the tool must be maintained within a predetermined range. Because of this, the control program became complicated and there was still room for improvement.
 本発明は、上記課題を解決するためになされたものであって、簡易な構成で、アルミニウム部材と亜鉛メッキ鋼部材を高い強度で接合することができ得る、摩擦攪拌接合装置及びその運転方法を提供することを目的とする。 The present invention has been made in order to solve the above-described problems, and has a simple configuration and a friction stir welding apparatus and a method of operating the same that can join an aluminum member and a galvanized steel member with high strength. The purpose is to provide.
 上記従来の課題を解決するために、本発明に係る摩擦攪拌接合装置は、アルミニウム部材と亜鉛メッキ鋼部材からなる、被接合物を摩擦熱で軟化させることにより接合する摩擦攪拌接合装置であって、円柱状に形成され、軸線周りの回転と該軸線に沿った方向への進退移動とが可能なように構成されているピン部材と、円筒状に形成され、前記ピン部材が内部に挿通されており、前記軸線に沿った方向への進退移動が可能なように構成されているショルダ部材と、前記ピン部材を前記軸線周りに回転させ、前記ショルダ部材を前記軸線周りに回転させないように構成されている回転駆動器と、前記ピン部材及び前記ショルダ部材を前記軸線に沿って進退移動させる直動駆動器と、を備え、前記アルミニウム部材が、前記ピン部材と対向するように配置されている。 In order to solve the above-mentioned conventional problems, a friction stir welding apparatus according to the present invention is a friction stir welding apparatus that is made of an aluminum member and a galvanized steel member and joins by softening an object to be welded by friction heat. A pin member formed in a columnar shape and configured to be capable of rotating around an axis and moving forward and backward in a direction along the axis, and a cylindrical member, and the pin member is inserted therein. A shoulder member configured to be able to advance and retreat in a direction along the axis, and a configuration in which the pin member is rotated around the axis, and the shoulder member is not rotated around the axis. And a linear drive for moving the pin member and the shoulder member forward and backward along the axis, wherein the aluminum member faces the pin member. Are sea urchin placed.
 これにより、ショルダ部材からアルミニウム部材を介して、亜鉛メッキ鋼部材への入熱量を低減することができ、亜鉛の溶融を抑制することができる。このため、溶融した亜鉛が、アルミニウム部材に侵入することを抑制することができるので、亜鉛とアルミニウムが反応して、液化割れが発生することを抑制することができる。したがって、アルミニウム部材と亜鉛メッキ鋼部材を高い強度で接合することができ得る。 Thereby, the amount of heat input from the shoulder member to the galvanized steel member via the aluminum member can be reduced, and the melting of zinc can be suppressed. For this reason, it is possible to suppress the molten zinc from entering the aluminum member, and it is possible to suppress the occurrence of liquefaction cracks due to the reaction between zinc and aluminum. Therefore, the aluminum member and the galvanized steel member can be joined with high strength.
 また、本発明に係る摩擦攪拌接合装置の運転方法は、アルミニウム部材と亜鉛メッキ鋼部材からなる、被接合物を摩擦熱で軟化させることにより接合する摩擦攪拌接合装置の運転方法であって、前記摩擦攪拌接合装置は、円柱状に形成され、軸線周りの回転と該軸線に沿った方向への進退移動とが可能なように構成されているピン部材と、円筒状に形成され、前記ピン部材が内部に挿通されており、前記軸線に沿った方向への進退移動が可能なように構成されているショルダ部材と、前記ピン部材を前記軸線周りに回転させ、前記ショルダ部材を前記軸線周りに回転させないように構成されている回転駆動器と、前記ピン部材及び前記ショルダ部材を前記軸線に沿って進退移動させる直動駆動器と、を備え、前記アルミニウム部材が、前記ピン部材と対向するように配置され、前記ピン部材を回転させ、かつ、前記ショルダ部材を回転させていない状態で、前記ピン部材の先端部が前記被接合物の被接合部を押圧するように、前記直動駆動器及び前記回転駆動器が動作する(A)と、前記直動駆動器及び前記回転駆動器が動作して、軟化した前記亜鉛メッキ鋼部材が、軟化した前記アルミニウム部材に突き刺さるように、前記ピン部材の先端部を予め設定されている所定の第1位置に到達させる(B)と、前記(B)の後、前記ピン部材を回転させた状態で、前記ピン部材の先端部を前記被接合部から引き抜くように、前記直動駆動器及び前記回転駆動器が動作する(C)と、を備える。 Further, the operation method of the friction stir welding apparatus according to the present invention is an operation method of the friction stir welding apparatus, which comprises an aluminum member and a galvanized steel member, and joins by softening an object to be joined by frictional heat, The friction stir welding apparatus has a pin member formed in a columnar shape and configured to be rotatable around an axis and to advance and retreat in a direction along the axis, and a pin member formed in a cylindrical shape, Is inserted therein, and a shoulder member configured to be able to advance and retreat in a direction along the axis, and the pin member is rotated around the axis, and the shoulder member is rotated around the axis. A rotary driver configured not to rotate, and a linear drive that moves the pin member and the shoulder member forward and backward along the axis, and the aluminum member includes: The pin member is arranged so as to face the pin member, and the pin member is rotated, and in a state where the shoulder member is not rotated, the tip end of the pin member presses the joined portion of the article to be joined. When the linear drive and the rotary drive operate (A), the linear drive and the rotary drive operate to cause the softened galvanized steel member to pierce the softened aluminum member. As described above, when the tip of the pin member reaches the predetermined first position (B), after the (B), the tip of the pin member is rotated while the pin member is rotated. (C) operating the linear drive and the rotary drive so as to pull out the part from the part to be joined.
 これにより、ショルダ部材からアルミニウム部材を介して、亜鉛メッキ鋼部材への入熱量を低減することができ、亜鉛の溶融を抑制することができる。このため、溶融した亜鉛が、アルミニウム部材に侵入することを抑制することができるので、亜鉛とアルミニウムが反応して、液化割れが発生することを抑制することができる。したがって、アルミニウム部材と亜鉛メッキ鋼部材を高い強度で接合することができ得る。 Thereby, the amount of heat input from the shoulder member to the galvanized steel member via the aluminum member can be reduced, and the melting of zinc can be suppressed. For this reason, it is possible to suppress the molten zinc from entering the aluminum member, and it is possible to suppress the occurrence of liquefaction cracks due to the reaction between zinc and aluminum. Therefore, the aluminum member and the galvanized steel member can be joined with high strength.
 また、軟化した亜鉛メッキ鋼部材が、軟化したアルミニウム部材に突き刺さることにより、アンカー効果が得られ、被接合物の引張強度を向上させることができる。 Further, since the softened galvanized steel member pierces the softened aluminum member, an anchor effect can be obtained and the tensile strength of the article to be joined can be improved.
 本発明の上記目的、他の目的、特徴、及び利点は、添付図面参照の下、以下の好適な実施形態の詳細な説明から明らかにされる。 The above object, other objects, features, and advantages of the present invention will be apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings.
 本発明に係る摩擦攪拌接合装置及びその運転方法によれば、簡易な構成で、アルミニウム部材と亜鉛メッキ鋼部材を高い強度で接合することができ得る。 According to the friction stir welding apparatus and the operation method thereof according to the present invention, it is possible to join an aluminum member and a galvanized steel member with high strength with a simple configuration.
図1は、本実施の形態1に係る摩擦攪拌接合装置の概略構成を示す模式図である。FIG. 1 is a schematic diagram showing a schematic configuration of the friction stir welding apparatus according to the first embodiment. 図2は、本実施の形態1に係る摩擦攪拌接合装置の動作の一例を示すフローチャートである。FIG. 2 is a flowchart showing an example of the operation of the friction stir welding apparatus according to the first embodiment. 図3は、本実施の形態1に係る摩擦攪拌接合装置の要部を示す模式図である。FIG. 3 is a schematic diagram illustrating a main part of the friction stir welding apparatus according to the first embodiment. 図4は、本実施の形態2に係る摩擦攪拌接合装置の概略構成を示す模式図である。FIG. 4 is a schematic diagram showing a schematic configuration of the friction stir welding apparatus according to the second embodiment.
 以下、本発明の好ましい実施の形態を、図面を参照しながら説明する。なお、以下では全ての図を通じて同一又は相当する要素には同一の参照符号を付して、その重複する説明を省略する。また、全ての図面において、本発明を説明するために必要となる構成要素を抜粋して図示しており、その他の構成要素については図示を省略している場合がある。さらに、本発明は以下の実施の形態に限定されない。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In the following, the same or corresponding elements are denoted by the same reference symbols throughout the drawings, and redundant description will be omitted. In all the drawings, components necessary for describing the present invention are extracted and illustrated, and other components may not be illustrated. Furthermore, the present invention is not limited to the following embodiments.
 (実施の形態1)
 本実施の形態1に係る摩擦攪拌接合装置は、アルミニウム部材と亜鉛メッキ鋼部材からなる、被接合物を摩擦熱で軟化させることにより接合する摩擦攪拌接合装置であって、円柱状に形成され、軸線周りの回転と該軸線に沿った方向への進退移動とが可能なように構成されているピン部材と、円筒状に形成され、ピン部材が内部に挿通されており、軸線に沿った方向への進退移動が可能なように構成されているショルダ部材と、ピン部材を軸線周りに回転させ、ショルダ部材を軸線周りに回転させないように構成されている回転駆動器と、ピン部材及びショルダ部材を軸線に沿って進退移動させる直動駆動器と、を備え、アルミニウム部材が、ピン部材と対向するように配置されている。
(Embodiment 1)
The friction stir welding apparatus according to the first embodiment is a friction stir welding apparatus that is made of an aluminum member and a galvanized steel member and is joined by softening an object to be joined by frictional heat, and is formed in a columnar shape. A pin member configured to be capable of rotation about an axis and advancing and retreating in a direction along the axis; and a cylindrical member formed with the pin member inserted therein and a direction along the axis. And a rotation driver configured to rotate the pin member around the axis and not to rotate the shoulder member around the axis, a pin member, and a shoulder member. And a linear drive unit for moving the actuator forward and backward along the axis. The aluminum member is disposed so as to face the pin member.
 また、本実施の形態1に係る摩擦攪拌接合装置では、ピン部材の先端部は、ショルダ部材の先端部よりも突出するように形成されていてもよい。 In the friction stir welding apparatus according to the first embodiment, the tip of the pin member may be formed so as to protrude beyond the tip of the shoulder member.
 また、本実施の形態1に係る摩擦攪拌接合装置では、ピン部材を回転させ、かつ、ショルダ部材を回転させていない状態で、ピン部材の先端部が被接合物の被接合部を押圧するように、直動駆動器及び回転駆動器を制御する(A)と、直動駆動器及び回転駆動器を制御して、軟化した亜鉛メッキ鋼部材が、軟化したアルミニウム部材に突き刺さるように、ピン部材の先端部を予め設定されている所定の第1位置に到達させる(B)と、(B)の後、ピン部材を回転させた状態で、ピン部材の先端部を被接合部から引き抜くように、直動駆動器及び回転駆動器を制御する(C)と、を実行するように構成されている、制御装置をさらに備えていてもよい。 Further, in the friction stir welding apparatus according to the first embodiment, in a state where the pin member is rotated and the shoulder member is not rotated, the tip of the pin member presses the portion to be welded of the workpiece. (A) controlling the linear drive and the rotary drive, and controlling the linear drive and the rotary drive so that the softened galvanized steel member penetrates the softened aluminum member so as to pierce the softened aluminum member. (B), and after (B), with the pin member rotated, pull out the tip portion of the pin member from the portion to be joined. And (C) controlling the linear drive and the rotary drive. The control device may further include a control device.
 さらに、本実施の形態1に係る摩擦攪拌接合装置では、回転駆動器は、モータとモータの回転駆動をピン部材に伝達する伝達機構を有し、伝達機構は、ショルダ部材にモータの回転駆動を伝達しないように構成されていてもよい。 Further, in the friction stir welding apparatus according to the first embodiment, the rotary driver has a motor and a transmission mechanism for transmitting the rotational drive of the motor to the pin member, and the transmission mechanism transmits the rotational drive of the motor to the shoulder member. It may be configured not to transmit.
 以下、本実施の形態1に係る摩擦攪拌接合装置の一例について、図1~図3を参照しながら詳細に説明する。 Hereinafter, an example of the friction stir welding apparatus according to the first embodiment will be described in detail with reference to FIGS.
 [摩擦攪拌接合装置の構成]
 図1は、本実施の形態1に係る摩擦攪拌接合装置の概略構成を示す模式図である。
[Configuration of friction stir welding device]
FIG. 1 is a schematic diagram showing a schematic configuration of the friction stir welding apparatus according to the first embodiment.
 図1に示すように、本実施の形態1に係る摩擦攪拌接合装置100は、ピン部材1、ショルダ部材2、工具固定器3、直動駆動器4、回転駆動器5、裏当て支持部材6、裏当て部材7、ロボット8、及び制御装置110を備えていて、被接合物Wの被接合部Waを摩擦熱で軟化させて、接合するように構成されている。 As shown in FIG. 1, the friction stir welding apparatus 100 according to the first embodiment includes a pin member 1, a shoulder member 2, a tool fixing device 3, a linear motion drive 4, a rotary drive 5, a backing support member 6, and the like. , A backing member 7, a robot 8, and a control device 110, and are configured to soften a joint portion Wa of a joint object W by frictional heat and join the joints.
 被接合物Wは、本実施の形態1においては、板状のアルミニウム部材W1と板状の亜鉛メッキ鋼部材W2で構成されている。なお、本実施の形態1においては、被接合物Wを板状のアルミニウム部材W1と板状の亜鉛メッキ鋼部材W2で構成されている形態を採用したが、これに限定されず、被接合物W(アルミニウム部材W1及び亜鉛メッキ鋼部材W2)の形状は任意であり、例えば、直方体状であってもよく、円弧状に形成されていてもよい。 In the first embodiment, the workpiece W is composed of a plate-shaped aluminum member W1 and a plate-shaped galvanized steel member W2. Note that, in the first embodiment, a configuration is adopted in which the workpiece W is composed of the plate-shaped aluminum member W1 and the plate-shaped galvanized steel member W2, but the present invention is not limited to this. The shape of W (aluminum member W1 and galvanized steel member W2) is arbitrary, and may be, for example, a rectangular parallelepiped shape or an arc shape.
 ピン部材1、ショルダ部材2、工具固定器3、直動駆動器4、及び回転駆動器5は、C型ガン(C型フレーム)で構成される裏当て支持部材6の上部に設けられている。また、裏当て支持部材6の下部には、裏当て部材7が設けられている。ピン部材1及びショルダ部材2と、裏当て部材7と、は互いに対向する位置で裏当て支持部材6に取り付けられている。裏当て支持部材6は、ロボット8の先端に取り付けられている。ロボット8としては、水平多関節型・垂直多関節型などのロボットを採用することができる。 The pin member 1, the shoulder member 2, the tool fixing device 3, the linear motion driving device 4, and the rotation driving device 5 are provided on an upper part of a backing support member 6 composed of a C-type gun (C-type frame). . A backing member 7 is provided below the backing support member 6. The pin member 1 and the shoulder member 2 and the backing member 7 are attached to the backing support member 6 at positions facing each other. The backing support member 6 is attached to the tip of the robot 8. As the robot 8, a robot of a horizontal articulated type, a vertical articulated type, or the like can be employed.
 なお、本実施の形態1に係る摩擦攪拌接合装置100は、ロボット8に適用される場合に限定されるものではなく、例えば、NC工作機械、大型のCフレーム、及びオートリベッター等の公知の加工用機器に適用してもよい。 The friction stir welding apparatus 100 according to the first embodiment is not limited to the case where the apparatus is applied to the robot 8. For example, known processing such as an NC machine tool, a large C frame, and an automatic riveter may be used. It may be applied to equipment for use.
 また、本実施の形態1においては、裏当て支持部材6がC型ガンで構成されている形態を採用したが、これに限定されない。裏当て支持部材6は、ピン部材1及びショルダ部材2を進退移動可能に支持するとともに、ピン部材1及びショルダ部材2に対向する位置に裏当て部材7を支持することができれば、どのように構成されていてもよい。 Also, in the first embodiment, the backing support member 6 is configured by a C-shaped gun, but is not limited to this. The backing support member 6 is configured to support the pin member 1 and the shoulder member 2 so as to be able to advance and retreat, and to support the backing member 7 at a position facing the pin member 1 and the shoulder member 2. It may be.
 裏当て部材7は、平板状に形成されていて、被接合物Wを支持するように構成されている。なお、裏当て部材7は、摩擦攪拌接合を実施できるように、被接合物Wを適切に支持することができるものであれば、その構成は特に限定されない。裏当て部材7は、例えば、複数の様々な形状を有する裏当て部材が別途準備され、被接合物Wの形状に応じて、交換できるように構成されていてもよい。 The backing member 7 is formed in a flat plate shape, and is configured to support the workpiece W. The configuration of the backing member 7 is not particularly limited as long as it can appropriately support the workpiece W so that friction stir welding can be performed. The backing member 7 may be configured such that, for example, a plurality of backing members having various shapes are separately prepared and can be replaced according to the shape of the workpiece W.
 ピン部材1及びショルダ部材2は、工具固定器3により支持されており、直動駆動器4によって、上下方向に進退駆動されるように構成されている。直動駆動器4としては、例えば、電動モータ(サーボモータ)とボールネジ又はリニアガイド等を用いてもよく、エアシリンダ等を用いてもよい。 The pin member 1 and the shoulder member 2 are supported by a tool fixing device 3, and are configured to be driven up and down in a vertical direction by a linear motion driver 4. As the direct drive 4, for example, an electric motor (servo motor) and a ball screw or a linear guide may be used, or an air cylinder or the like may be used.
 また、ピン部材1は、略円柱形に形成されていて、回転駆動器5により、ピン部材1の軸線Xr回りに回転可能に構成されている。回転駆動器5は、モータ51とモータ51の回転駆動をピン部材1に伝達する伝達機構52を有している。モータ51としては、例えば、電動モータ(サーボモータ)を用いてもよい。また、伝達機構52は、ショルダ部材2にモータ51の回転駆動を伝達しないように構成されている。伝達機構52としては、公知の歯車等による回転伝達機構を用いてもよい。 The pin member 1 is formed in a substantially columnar shape, and is configured to be rotatable around the axis Xr of the pin member 1 by the rotation driver 5. The rotation driver 5 has a motor 51 and a transmission mechanism 52 that transmits the rotation of the motor 51 to the pin member 1. As the motor 51, for example, an electric motor (servo motor) may be used. The transmission mechanism 52 is configured not to transmit the rotation drive of the motor 51 to the shoulder member 2. As the transmission mechanism 52, a rotation transmission mechanism using a known gear or the like may be used.
 なお、本実施の形態1においては、図1に示すように、伝達機構52は、機械的に、ピン部材1のみにモータ51からの回転駆動を伝達し、ショルダ部材2には、モータ51からの回転駆動を伝達しないように構成されている形態を採用したが、これに限定されない。伝達機構52は、電気的に、ピン部材1のみにモータ51からの回転駆動を伝達し、ショルダ部材2には、モータ51からの回転駆動を伝達しないように構成されている形態を採用してもよい。 In the first embodiment, as shown in FIG. 1, the transmission mechanism 52 mechanically transmits the rotation drive from the motor 51 only to the pin member 1, and transmits the rotation drive from the motor 51 to the shoulder member 2. Although the configuration configured to not transmit the rotational drive is adopted, the present invention is not limited to this. The transmission mechanism 52 employs a configuration in which the rotation drive from the motor 51 is electrically transmitted only to the pin member 1 and the rotation drive from the motor 51 is not transmitted to the shoulder member 2. Is also good.
 ここで、「電気的に」とは、伝達機構52に電力(電流)が供給されないことにより、伝達機構52が、ショルダ部材2にモータ51からの回転駆動が伝達しない態様であってもよい。また、制御装置110からショルダ部材2への作動を禁止する電気信号(制御信号)が伝達機構52出力されることにより、伝達機構52が、ショルダ部材2にモータ51からの回転駆動が伝達しない態様であってもよい。 Here, “electrically” may be a mode in which the transmission mechanism 52 does not transmit the rotation drive from the motor 51 to the shoulder member 2 because power (current) is not supplied to the transmission mechanism 52. In addition, when control device 110 outputs an electric signal (control signal) for inhibiting operation to shoulder member 2 from transmission mechanism 52, transmission mechanism 52 does not transmit the rotation drive from motor 51 to shoulder member 2. It may be.
 ショルダ部材2は、中空を有する略円筒状に形成されていて、ショルダ部材2の中空内には、ピン部材1が内挿されている。また、本実施の形態1においては、ピン部材1の先端部1aが、ショルダ部材2の先端部2aよりも突出するように、ピン部材1及びショルダ部材2が配置されている。さらに、上述したように、ショルダ部材2は、回転駆動器5により、軸線Xr回りに回転しないように構成されている。 The shoulder member 2 is formed in a substantially cylindrical shape having a hollow, and the pin member 1 is inserted into the hollow of the shoulder member 2. Further, in the first embodiment, pin member 1 and shoulder member 2 are arranged such that tip portion 1a of pin member 1 protrudes beyond tip portion 2a of shoulder member 2. Further, as described above, the shoulder member 2 is configured so as not to rotate around the axis Xr by the rotation driver 5.
 なお、本実施の形態1においては、ピン部材1及びショルダ部材2が、直動駆動器4により、進退移動可能に構成されている形態を採用したが、これに限定されない。ピン部材1及びショルダ部材2が、それぞれ独立して、進退移動可能に構成されている形態を採用してもよい。 In the first embodiment, the pin member 1 and the shoulder member 2 are configured to be movable forward and backward by the linear motion driver 4, but the present invention is not limited to this. A mode in which the pin member 1 and the shoulder member 2 are configured to be able to move forward and backward independently of each other may be adopted.
 制御装置110は、マイクロプロセッサ、CPU等の演算処理器と、ROM、RAM等の記憶器と、を備えている(図示せず)。記憶器には、基本プログラム、各種固定データ等の情報が記憶されている。演算処理器は、記憶器に記憶された基本プログラム等のソフトウェアを読み出して実行することにより、直動駆動器4、回転駆動器5、及びロボット8の各種動作を制御する。 The control device 110 includes a processing unit such as a microprocessor and a CPU, and a storage unit such as a ROM and a RAM (not shown). The storage device stores information such as a basic program and various fixed data. The arithmetic processing unit reads and executes software such as a basic program stored in the storage device, and controls various operations of the linear drive unit 4, the rotation drive unit 5, and the robot 8.
 なお、制御装置110は、集中制御する単独の制御装置110によって構成されていてもよいし、互いに協働して分散制御する複数の制御装置110によって構成されていてもよい。また、制御装置110は、マイクロコンピュータで構成されていてもよく、MPU、PLC(Programmable Logic Controller)、論理回路等によって構成されていてもよい。 The control device 110 may be configured by a single control device 110 that performs centralized control, or may be configured by a plurality of control devices 110 that perform distributed control in cooperation with each other. Further, the control device 110 may be configured by a microcomputer, and may be configured by an MPU, a PLC (Programmable Logic Controller), a logic circuit, or the like.
 [摩擦攪拌接合装置の動作(摩擦攪拌接合装置の運転方法)]
 次に、本実施の形態1に係る摩擦攪拌接合装置100の運転方法について、図1~図3を参照しながら説明する。なお、以下の動作は、制御装置110の演算処理器が、記憶器に格納されているプログラムを読み出すことにより実行される。
[Operation of friction stir welding apparatus (operation method of friction stir welding apparatus)]
Next, an operation method of the friction stir welding apparatus 100 according to the first embodiment will be described with reference to FIGS. Note that the following operation is executed by the arithmetic processing unit of the control device 110 reading out the program stored in the storage device.
 図2は、本実施の形態1に係る摩擦攪拌接合装置の動作の一例を示すフローチャートである。図3は、本実施の形態1に係る摩擦攪拌接合装置の要部を示す模式図であり、摩擦攪拌接合を実行した状態を示す。 FIG. 2 is a flowchart showing an example of the operation of the friction stir welding apparatus according to the first embodiment. FIG. 3 is a schematic diagram showing a main part of the friction stir welding apparatus according to the first embodiment, and shows a state where friction stir welding is performed.
 まず、作業者が裏当て部材7の上面に被接合物Wを載置する。ついで、作業者が入力器(図示せず)を操作して、制御装置110に被接合物Wの接合実行を入力する。 {Circle around (1)} First, the worker places the workpiece W on the upper surface of the backing member 7. Next, the operator operates the input device (not shown) to input the execution of the joining of the workpiece W to the control device 110.
 すると、図2に示すように、制御装置110は、回転駆動器5を駆動させて、ピン部材1を所定の回転数(例えば、500~3000rpm)で回転させる(ステップS101)。ついで、制御装置110は、ピン部材1を回転させ、かつ、ショルダ部材2を回転していない状態で、直動駆動器4を駆動させて、ピン部材1及びショルダ部材2を進行させて、ピン部材1の先端を被接合物Wの被接合部Waに当接させる(ステップS102)。 Then, as shown in FIG. 2, the control device 110 drives the rotation driver 5 to rotate the pin member 1 at a predetermined rotation speed (for example, 500 to 3000 rpm) (step S101). Next, the control device 110 drives the linear motion driver 4 while rotating the pin member 1 and not rotating the shoulder member 2 to advance the pin member 1 and the shoulder member 2, and The tip of the member 1 is brought into contact with the portion Wa to be welded of the workpiece W (Step S102).
 次に、制御装置110は、ピン部材1の先端部が予め設定されている所定の第1位置まで移動するように、直動駆動器4を駆動させる(ステップS103)。このとき、制御装置110は、ピン部材1が予め設定された所定の押圧力(例えば、4kN~70kN)で被接合物Wを押圧するように、直動駆動器4を制御する。 Next, the control device 110 drives the linear motion driver 4 so that the distal end of the pin member 1 moves to a predetermined first position set in advance (step S103). At this time, the control device 110 controls the linear motion driver 4 so that the pin member 1 presses the workpiece W with a predetermined pressing force (for example, 4 kN to 70 kN).
 なお、所定の回転数及び所定の押圧力は、予め実験等により、適宜設定することができる。また、ピン部材1の先端の位置情報は、図示されない位置検出器により検出されて、制御装置110に出力される。 Note that the predetermined rotation speed and the predetermined pressing force can be appropriately set in advance by experiments and the like. The position information of the tip of the pin member 1 is detected by a position detector (not shown) and output to the control device 110.
 ここで、第1位置とは、亜鉛メッキ鋼部材W2のアルミニウム部材W1と当接する面を0%とし、亜鉛メッキ鋼部材W2の裏当て部材7と当接する面を100%とした場合に、0%より大きく、かつ、100%未満の間で任意に設定される位置をいう。なお、接合強度を向上させる観点から、第1位置は、亜鉛メッキ鋼部材W2の裏当て部材7と当接する面に近い方がよく、25%以上であってもよく、50%以上であってもよく、75%以上であってもよく、80%以上であってもよく、90%以上であってもよく、95%以上であってもよい。 Here, the first position is defined as 0% when the surface of the galvanized steel member W2 in contact with the aluminum member W1 is 0% and the surface of the galvanized steel member W2 in contact with the backing member 7 is 100%. % Means a position arbitrarily set between 100% and 100%. From the viewpoint of improving the bonding strength, the first position is preferably closer to the surface of the galvanized steel member W2 that contacts the backing member 7, and may be 25% or more, or 50% or more. May be 75% or more, 80% or more, 90% or more, or 95% or more.
 これにより、ピン部材1が、被接合物Wの被接合部Waに当接し、ピン部材1の先端部と被接合部Waとの摩擦により、摩擦熱が発生し、被接合物Wの被接合部Waが軟化されて、塑性流動が生じる。 As a result, the pin member 1 comes into contact with the portion Wa to be welded of the workpiece W, and frictional heat is generated by the friction between the distal end portion of the pin member 1 and the portion Wa to be welded. The portion Wa is softened and plastic flow occurs.
 そして、図3に示すように、ピン部材1の先端部が、被接合部Waの内部に圧入されることにより、亜鉛メッキ鋼部材W2の軟化部分である第2軟化部分42が、アルミニウム部材W1の軟化部分である第1軟化部分41に入り込む(突き刺さる)。 Then, as shown in FIG. 3, when the distal end of the pin member 1 is press-fitted into the portion to be joined Wa, the second softened portion 42, which is the softened portion of the galvanized steel member W2, becomes Into the first softened portion 41, which is the softened portion of the first portion.
 このとき、本実施の形態1に係る摩擦攪拌接合装置100では、ショルダ部材2が回転していないため、ピン部材1及びショルダ部材2が回転するように構成されている、従来の摩擦攪拌接合装置に比して、アルミニウム部材W1への入熱量が低減される。これにより、アルミニウム部材W1から亜鉛メッキ鋼部材W2への入熱量を低減することができ、亜鉛の溶融を抑制することができる。 At this time, in the friction stir welding apparatus 100 according to the first embodiment, since the shoulder member 2 is not rotating, the pin member 1 and the shoulder member 2 are configured to rotate. , The amount of heat input to the aluminum member W1 is reduced. Thereby, the amount of heat input from the aluminum member W1 to the galvanized steel member W2 can be reduced, and the melting of zinc can be suppressed.
 このため、溶融した亜鉛が、アルミニウム部材W1に侵入することを抑制することができるので、亜鉛とアルミニウムが反応して、液化割れが発生することを抑制することができる。したがって、アルミニウム部材W1と亜鉛メッキ鋼部材W2を高い強度で接合することができ得る。 Therefore, it is possible to suppress the molten zinc from entering the aluminum member W1, and it is possible to suppress the occurrence of liquefaction cracks due to the reaction between zinc and aluminum. Therefore, the aluminum member W1 and the galvanized steel member W2 can be joined with high strength.
 なお、本明細書においては、第1軟化部分41に入り込んだ第2軟化部分42をアンカー部分と称する。 In the present specification, the second softened portion 42 that has entered the first softened portion 41 is referred to as an anchor portion.
 次に、制御装置110は、図示されない位置検知器が検知した、ピン部材1の先端部の位置情報を基に、ピン部材1の先端部が、第1位置まで到達したか否かを判定する(ステップS104)。制御装置110は、ピン部材1の先端部が、第1位置まで到達していないと判定した場合(ステップS104でNo)には、ピン部材1の先端部が、第1位置まで到達するまで、ステップS103~ステップS104の各処理を実行する。一方、制御装置110は、ピン部材1の先端部が、第1位置まで到達していると判定した場合(ステップS104でYes)には、ステップS105の処理を実行する。 Next, the control device 110 determines whether or not the distal end of the pin member 1 has reached the first position based on the positional information of the distal end of the pin member 1 detected by a position detector (not shown). (Step S104). When the control device 110 determines that the distal end of the pin member 1 has not reached the first position (No in step S104), the control device 110 continues until the distal end of the pin member 1 reaches the first position. Each processing of steps S103 to S104 is executed. On the other hand, when the control device 110 determines that the tip end of the pin member 1 has reached the first position (Yes in step S104), the control device 110 executes the process of step S105.
 ステップS105では、制御装置110は、ピン部材1を回転させ、かつ、ショルダ部材2を回転させていない状態で、ピン部材1の先端部を被接合部Waから引き抜く(ピン部材1及びショルダ部材2の先端部が被接合物Wの表面から離間する)ように、直動駆動器4を駆動させる。そして、制御装置110は、ピン部材1の先端部が被接合部Waから引き抜かれると、ピン部材1の回転を停止するように、回転駆動器5を停止させて、本プログラムを終了する。なお、複数の被接合部Waを接合する場合には、制御装置110は、ピン部材1の回転を停止させずに、次の被接合部Waの接合を開始するように構成されていてもよい。 In step S105, the control device 110 pulls out the distal end of the pin member 1 from the portion to be joined Wa while rotating the pin member 1 and not rotating the shoulder member 2 (the pin member 1 and the shoulder member 2). Is moved away from the surface of the workpiece W). Then, when the distal end portion of the pin member 1 is pulled out of the joint Wa, the control device 110 stops the rotation driver 5 so as to stop the rotation of the pin member 1 and ends the program. In the case of joining a plurality of joints Wa, the control device 110 may be configured to start joining of the next joint Wa without stopping the rotation of the pin member 1. .
 このように構成された、本実施の形態1に係る摩擦攪拌接合装置100では、被接合物Wに対して、摩擦攪拌接合を実行することにより、亜鉛メッキ鋼部材W2の第2軟化部分42が、アルミニウム部材W1の第1軟化部分41に入り込み、引張せん断に対する強度が高くなり、相対的に剥離強度も高くなるといったアンカー効果が得られる。 In the friction stir welding apparatus 100 according to the first embodiment configured as described above, by performing the friction stir welding on the workpiece W, the second softened portion 42 of the galvanized steel member W2 is formed. And the aluminum member W1 enters the first softened portion 41, and the anchor effect such that the strength against tensile shear increases and the peel strength relatively increases.
 また、本実施の形態1に係る摩擦攪拌接合装置100では、ショルダ部材2が回転しないように構成されている。これにより、ショルダ部材2から、アルミニウム部材W1を介して、亜鉛メッキ鋼部材W2への入熱量を低減することができ、亜鉛の溶融を抑制することができる。 In addition, in the friction stir welding apparatus 100 according to the first embodiment, the shoulder member 2 is configured not to rotate. Thereby, the amount of heat input from the shoulder member 2 to the galvanized steel member W2 via the aluminum member W1 can be reduced, and the melting of zinc can be suppressed.
 このため、溶融した亜鉛が、アルミニウム部材W1に侵入することを抑制することができるので、亜鉛とアルミニウムが反応して、液化割れが発生することを抑制することができる。したがって、アルミニウム部材W1と亜鉛メッキ鋼部材W2を高い強度で接合することができ得る。 Therefore, it is possible to suppress the molten zinc from entering the aluminum member W1, and it is possible to suppress the occurrence of liquefaction cracks due to the reaction between zinc and aluminum. Therefore, the aluminum member W1 and the galvanized steel member W2 can be joined with high strength.
 (実施の形態2)
 本実施の形態2に係る摩擦攪拌接合装置は、実施の形態1に係る摩擦攪拌接合装置において、回転駆動器が、モータと、モータの回転駆動をピン部材及びショルダ部材に伝達する伝達機構と、ショルダ部材へのモータの回転駆動の伝達をブロックするブロック機構と、を有する。
(Embodiment 2)
The friction stir welding apparatus according to the second embodiment is the friction stir welding apparatus according to the first embodiment, wherein the rotation driver is a motor, and a transmission mechanism that transmits rotation drive of the motor to the pin member and the shoulder member; And a blocking mechanism for blocking transmission of rotation of the motor to the shoulder member.
 以下、本実施の形態2に係る摩擦攪拌接合装置の一例について、図4を参照しながら詳細に説明する。 Hereinafter, an example of the friction stir welding apparatus according to the second embodiment will be described in detail with reference to FIG.
 [摩擦攪拌接合装置の構成]
 図4は、本実施の形態2に係る摩擦攪拌接合装置の概略構成を示す模式図である。
[Configuration of friction stir welding device]
FIG. 4 is a schematic diagram showing a schematic configuration of the friction stir welding apparatus according to the second embodiment.
 図4に示すように、本実施の形態2に係る摩擦攪拌接合装置100は、実施の形態1に係る摩擦攪拌接合装置100と基本的構成は同じであるが、回転駆動器5の構成が異なる。 As shown in FIG. 4, the friction stir welding apparatus 100 according to the second embodiment has the same basic configuration as the friction stir welding apparatus 100 according to the first embodiment, but differs in the configuration of the rotary driver 5. .
 具体的には、回転駆動器5は、モータ51と、モータ51の回転駆動をピン部材1及びショルダ部材2に伝達する伝達機構52と、ショルダ部材2へのモータ51の回転駆動の伝達をブロックするブロック機構53と、を有する。伝達機構52は、モータ51の回転駆動をピン部材1に伝達する第1伝達機構52aと、モータ51の回転駆動をショルダ部材2に伝達する第2伝達機構第2伝達機構52bと、を有する。 Specifically, the rotation driver 5 blocks a motor 51, a transmission mechanism 52 that transmits the rotation of the motor 51 to the pin member 1 and the shoulder member 2, and a transmission of the rotation of the motor 51 to the shoulder member 2. And a block mechanism 53 that performs the operation. The transmission mechanism 52 includes a first transmission mechanism 52a that transmits the rotational drive of the motor 51 to the pin member 1, and a second transmission mechanism 52b that transmits the rotational drive of the motor 51 to the shoulder member 2.
 ブロック機構53は、機械的又は電気的に、ピン部材1のみにモータ51からの回転駆動を伝達し、ショルダ部材2には、モータ51からの回転駆動を伝達しないように構成されていてもよい。 The block mechanism 53 may be configured to mechanically or electrically transmit the rotational drive from the motor 51 only to the pin member 1 and not transmit the rotational drive from the motor 51 to the shoulder member 2. .
 ここで、「機械的に」とは、例えば、ブロック機構53が、歯車等のかみ合いを解除させることにより、ショルダ部材2にモータ51からの回転駆動が伝達されない態様であってもよい。また、例えば、ブロック機構53が、歯車等の回転を停止させることにより、ショルダ部材2にモータ51からの回転駆動が伝達されない態様であってもよい。 Here, “mechanically” may mean, for example, a mode in which the rotational drive from the motor 51 is not transmitted to the shoulder member 2 by the block mechanism 53 releasing the engagement of the gears or the like. Further, for example, a mode in which the rotation drive from the motor 51 is not transmitted to the shoulder member 2 by the block mechanism 53 stopping the rotation of the gears or the like may be used.
 また、「電気的に」とは、例えば、ブロック機構53が、伝達機構52に電力(電流)を供給しないことにより、伝達機構52からショルダ部材2にモータ51からの回転駆動が伝達されない態様であってもよい。また、例えば、制御装置110から伝達機構52のショルダ部材2への作動を禁止する電気信号(制御信号)が伝達機構52に出力されることにより、ショルダ部材2にモータ51からの回転駆動が伝達されない態様であってもよい。この場合、制御装置110がブロック機構53の機能を有することになる。 The term “electrically” refers to, for example, a mode in which the rotation drive from the motor 51 is not transmitted from the transmission mechanism 52 to the shoulder member 2 because the block mechanism 53 does not supply electric power (current) to the transmission mechanism 52. There may be. Further, for example, when an electrical signal (control signal) for prohibiting the operation of the transmission mechanism 52 to the shoulder member 2 is output from the control device 110 to the transmission mechanism 52, the rotation drive from the motor 51 is transmitted to the shoulder member 2. It may be an aspect that is not performed. In this case, the control device 110 has the function of the block mechanism 53.
 このように構成された、本実施の形態2に係る摩擦攪拌接合装置100であっても、実施の形態1に係る摩擦攪拌接合装置100と同様の作用効果を奏する。 摩擦 The friction stir welding apparatus 100 according to the second embodiment configured as described above has the same operation and effect as the friction stir welding apparatus 100 according to the first embodiment.
 上記説明から、当業者にとっては、本発明の多くの改良又は他の実施形態が明らかである。したがって、上記説明は、例示としてのみ解釈されるべきであり、本発明を実行する最良の形態を当業者に教示する目的で提供されたものである。本発明を逸脱することなく、その構造及び/又は機能の詳細を実質的に変更できる。また、上記実施形態に開示されている複数の構成要素の適宜な組合せにより種々の発明を形成できる。 From the above description, many modifications or other embodiments of the present invention are obvious to one skilled in the art. Therefore, the above description should be construed as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the invention. The details of the structure and / or function may be substantially changed without departing from the invention. Further, various inventions can be formed by appropriately combining a plurality of components disclosed in the above embodiments.
 本発明の摩擦攪拌接合装置及びその運転方法は、簡易な構成で、アルミニウム部材と亜鉛メッキ鋼部材を高い強度で接合することができ得るため、有用である。 The friction stir welding apparatus and the operation method of the present invention are useful because the aluminum member and the galvanized steel member can be joined with a high strength with a simple configuration.
 1 ピン部材
 2 ショルダ部材
 2a 先端部
 3 工具固定器
 4 直動駆動器
 5 回転駆動器
 6 支持部材
 7 裏当て部材
 8 ロボット
 41 第1軟化部分
 42 第2軟化部分
 51 モータ
 52a 第1伝達機構
 52b 第2伝達機構
 52 伝達機構
 53 ブロック機構
 100 摩擦攪拌接合装置
 110 制御装置
 Xr 軸線
 W 被接合物
 Wa 被接合部
 W1 アルミニウム部材
 W2 亜鉛メッキ鋼部材
 
DESCRIPTION OF SYMBOLS 1 Pin member 2 Shoulder member 2a Tip part 3 Tool fixing device 4 Linear drive device 5 Rotary drive device 6 Support member 7 Backing member 8 Robot 41 First softened portion 42 Second softened portion 51 Motor 52a First transmission mechanism 52b First 2 Transmission mechanism 52 Transmission mechanism 53 Block mechanism 100 Friction stir welding device 110 Control device Xr Axis line W Work piece Wa Work piece W1 Aluminum member W2 Galvanized steel member

Claims (9)

  1.  アルミニウム部材と亜鉛メッキ鋼部材からなる、被接合物を摩擦熱で軟化させることにより接合する摩擦攪拌接合装置であって、
     円柱状に形成され、軸線周りの回転と該軸線に沿った方向への進退移動とが可能なように構成されているピン部材と、
     円筒状に形成され、前記ピン部材が内部に挿通されており、前記軸線に沿った方向への進退移動が可能なように構成されているショルダ部材と、
     前記ピン部材を前記軸線周りに回転させ、前記ショルダ部材を前記軸線周りに回転させないように構成されている回転駆動器と、
     前記ピン部材及び前記ショルダ部材を前記軸線に沿って進退移動させる直動駆動器と、を備え、
     前記アルミニウム部材が、前記ピン部材と対向するように配置されている、摩擦攪拌接合装置。
    A friction stir welding apparatus, which is made of an aluminum member and a galvanized steel member, and is joined by softening an object to be joined by frictional heat,
    A pin member formed in a columnar shape and configured to be able to rotate around an axis and advance and retreat in a direction along the axis;
    A shoulder member formed in a cylindrical shape, wherein the pin member is inserted therein, and configured to be capable of moving forward and backward in a direction along the axis,
    A rotation driver configured to rotate the pin member around the axis and not to rotate the shoulder member around the axis,
    A linear drive for moving the pin member and the shoulder member forward and backward along the axis,
    A friction stir welding apparatus, wherein the aluminum member is arranged to face the pin member.
  2.  前記ピン部材の先端部は、前記ショルダ部材の先端部よりも突出するように形成されている、請求項1に記載の摩擦攪拌接合装置。 The friction stir welding apparatus according to claim 1, wherein the tip of the pin member is formed so as to protrude beyond the tip of the shoulder member.
  3.  前記ピン部材を回転させ、かつ、前記ショルダ部材を回転させていない状態で、前記ピン部材の先端部が前記被接合物の被接合部を押圧するように、前記直動駆動器及び前記回転駆動器を制御する(A)と、
     前記直動駆動器及び前記回転駆動器を制御して、軟化した前記亜鉛メッキ鋼部材が、軟化した前記アルミニウム部材に突き刺さるように、前記ピン部材の先端部を予め設定されている所定の第1位置に到達させる(B)と、
     前記(B)の後、前記ピン部材を回転させ、かつ、前記ショルダ部材を回転させていない状態で、前記ピン部材の先端部を前記被接合部から引き抜くように、前記直動駆動器及び前記回転駆動器を制御する(C)と、を実行するように構成されている、制御装置をさらに備える、請求項1又は2に記載の摩擦攪拌接合装置。
    The linear drive and the rotation drive so that the tip of the pin presses the portion to be welded of the workpiece in a state where the pin is rotated and the shoulder is not rotated. Controlling the vessel (A),
    The linear drive unit and the rotary drive unit are controlled so that the softened galvanized steel member pierces the softened aluminum member so that the distal end of the pin member is set to a predetermined first position. (B)
    After the step (B), the linear motion driver and the linear drive unit are pulled so that the tip end of the pin member is pulled out of the portion to be joined in a state where the pin member is rotated and the shoulder member is not rotated. The friction stir welding apparatus according to claim 1 or 2, further comprising: a control device configured to execute (C) controlling the rotation driver.
  4.  前記回転駆動器は、モータと前記モータの回転駆動を前記ピン部材に伝達する伝達機構を有し、
     前記伝達機構は、前記ショルダ部材に前記モータの回転駆動を伝達しないように構成されている、請求項1~3のいずれか1項に記載の摩擦攪拌接合装置。
    The rotation driver has a motor and a transmission mechanism that transmits rotation drive of the motor to the pin member,
    The friction stir welding apparatus according to any one of claims 1 to 3, wherein the transmission mechanism is configured not to transmit the rotation drive of the motor to the shoulder member.
  5.  前記回転駆動器は、モータと、前記モータの回転駆動を前記ピン部材及び前記ショルダ部材に伝達する伝達機構と、前記ショルダ部材への前記モータの回転駆動の伝達をブロックするブロック機構と、を有する、請求項1~3のいずれか1項に記載の摩擦攪拌接合装置。 The rotation driver includes a motor, a transmission mechanism that transmits the rotation drive of the motor to the pin member and the shoulder member, and a block mechanism that blocks transmission of the rotation drive of the motor to the shoulder member. The friction stir welding apparatus according to any one of claims 1 to 3.
  6.  アルミニウム部材と亜鉛メッキ鋼部材からなる、被接合物を摩擦熱で軟化させることにより接合する摩擦攪拌接合装置の運転方法であって、
     前記摩擦攪拌接合装置は、
     円柱状に形成され、軸線周りの回転と該軸線に沿った方向への進退移動とが可能なように構成されているピン部材と、
     円筒状に形成され、前記ピン部材が内部に挿通されており、前記軸線に沿った方向への進退移動が可能なように構成されているショルダ部材と、
     前記ピン部材を前記軸線周りに回転させ、前記ショルダ部材を前記軸線周りに回転させないように構成されている回転駆動器と、
     前記ピン部材及び前記ショルダ部材を前記軸線に沿って進退移動させる直動駆動器と、を備え、
     前記アルミニウム部材が、前記ピン部材と対向するように配置され、
     前記ピン部材を回転させ、かつ、前記ショルダ部材を回転させていない状態で、前記ピン部材の先端部が前記被接合物の被接合部を押圧するように、前記直動駆動器及び前記回転駆動器が動作する(A)と、
     前記直動駆動器及び前記回転駆動器が動作して、軟化した前記亜鉛メッキ鋼部材が、軟化した前記アルミニウム部材に突き刺さるように、前記ピン部材の先端部を予め設定されている所定の第1位置に到達させる(B)と、
     前記(B)の後、前記ピン部材を回転させ、かつ、前記ショルダ部材を回転させていない状態で、前記ピン部材の先端部を前記被接合部から引き抜くように、前記直動駆動器及び前記回転駆動器が動作する(C)と、を備える、摩擦攪拌接合装置の運転方法。
    An operation method of a friction stir welding apparatus, which comprises an aluminum member and a galvanized steel member, and joins by softening an object to be joined by frictional heat,
    The friction stir welding apparatus,
    A pin member formed in a columnar shape and configured to be capable of rotating around an axis and moving forward and backward in a direction along the axis;
    A shoulder member formed in a cylindrical shape, wherein the pin member is inserted therein, and configured to be capable of moving forward and backward in a direction along the axis,
    A rotation driver configured to rotate the pin member around the axis and not rotate the shoulder member around the axis,
    A linear drive for moving the pin member and the shoulder member forward and backward along the axis,
    The aluminum member is arranged to face the pin member,
    The linear drive and the rotation drive so that the tip of the pin presses the portion to be welded of the workpiece in a state where the pin is rotated and the shoulder is not rotated. When the vessel operates (A),
    The linear drive and the rotary drive are operated, and the tip of the pin member is set to a predetermined first position so that the softened galvanized steel member pierces the softened aluminum member. (B)
    After the step (B), the linear motion driver and the linear drive unit are pulled so that the tip end of the pin member is pulled out of the portion to be joined in a state where the pin member is rotated and the shoulder member is not rotated. (C) operating the rotary drive, comprising: (C) operating the friction stir welding apparatus.
  7.  前記ピン部材の先端部は、前記ショルダ部材の先端部よりも突出するように形成されている、請求項6に記載の摩擦攪拌接合装置の運転方法。 The operation method of the friction stir welding apparatus according to claim 6, wherein the tip of the pin member is formed so as to protrude beyond the tip of the shoulder member.
  8.  前記回転駆動器は、モータと前記モータの回転駆動を前記ピン部材に伝達する伝達機構を有し、
     前記伝達機構は、前記ショルダ部材に前記モータの回転駆動を伝達しないように構成されている、請求項6又は7に記載の摩擦攪拌接合装置の運転方法。
    The rotation driver has a motor and a transmission mechanism that transmits rotation drive of the motor to the pin member,
    The operation method of the friction stir welding apparatus according to claim 6, wherein the transmission mechanism is configured not to transmit the rotation drive of the motor to the shoulder member.
  9.  前記回転駆動器は、モータと、前記モータの回転駆動を前記ピン部材及び前記ショルダ部材に伝達する伝達機構と、前記ショルダ部材への前記モータの回転駆動の伝達をブロックするブロック機構と、を有する、請求項6又は7に記載の摩擦攪拌接合装置の運転方法。
     
     
     
     
     
    The rotation driver includes a motor, a transmission mechanism that transmits the rotation drive of the motor to the pin member and the shoulder member, and a block mechanism that blocks transmission of the rotation drive of the motor to the shoulder member. An operation method of the friction stir welding apparatus according to claim 6 or 7.




PCT/JP2019/031254 2018-08-08 2019-08-07 Friction stir welding device and operation method therefor WO2020032141A1 (en)

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