JP4853865B2 - Cleaning method of FSW joint tool - Google Patents
Cleaning method of FSW joint tool Download PDFInfo
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- JP4853865B2 JP4853865B2 JP2006042233A JP2006042233A JP4853865B2 JP 4853865 B2 JP4853865 B2 JP 4853865B2 JP 2006042233 A JP2006042233 A JP 2006042233A JP 2006042233 A JP2006042233 A JP 2006042233A JP 4853865 B2 JP4853865 B2 JP 4853865B2
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- 238000004140 cleaning Methods 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 9
- 238000005304 joining Methods 0.000 claims description 31
- 238000003756 stirring Methods 0.000 claims description 12
- 238000007654 immersion Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 description 11
- 238000003466 welding Methods 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
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- Pressure Welding/Diffusion-Bonding (AREA)
Description
本発明は、クランプピンを有し、センタ―ピンとショルダ―ピンとからなる接合ツ―ルの回転による摩擦熱で被接合物を軟化，撹拌してスポット接合するＦＳＷの接合ツ―ルの清掃方法に関するものである。 The present invention relates to a method for cleaning a joint tool of FSW which has a clamp pin and softens and agitates the object to be joined by frictional heat generated by the rotation of the joint tool including a center pin and a shoulder pin, and agitates the spot joint. Is.
従来，センタ―ピンとショルダ―ピンとからなる接合ツ―ルの回転による摩擦熱で被接合物を軟化，撹拌してスポット接合するＦＳＷであって、センタ―ピンがショルダ―ピン内に挿通されてショルダ―ピンに対してセンタ―ピンの先端が出没するようになされ、撹拌用モ―タにより接合ツ―ルが回転するＦＳＷにおいて、接合ツ―ルである回転子とセンタ―ピンの上端部を固定したホルダとの間にばねを介在させ、このばねの力によりショルダ―ピンの先端からセンタ―ピンが出没するようになされたものがある（例えば、特許文献１参照。）。
また、接合ツ―ルの外周に駆動部本体側からスプリングによって付勢されたクランプピンを配置して被接合物に対してＦＳＷを確実に位置付けするものもある（例えば、特許文献２参照。）。
Conventionally, the FSW softens and stirs the object to be joined by frictional heat generated by the rotation of the joining tool composed of the center pin and the shoulder pin, and spot welding is performed by the center pin being inserted into the shoulder pin. -In the FSW where the tip of the center pin protrudes and protrudes with respect to the pin, and the joint tool rotates by the stirring motor, the rotor that is the joint tool and the upper end of the center pin are fixed In some cases, a spring is interposed between the holder and the center pin protrudes and retracts from the tip of the shoulder pin by the force of the spring (see, for example, Patent Document 1).
In addition, there is a clamp pin that is biased by a spring from the drive unit main body side on the outer periphery of the joint tool so that the FSW is reliably positioned with respect to the object to be joined (see, for example, Patent Document 2). .
ところで、上記従来の技術を寄せ集めてＦＳＷを構成した場合に、ショルダ―ピンの先端からセンタ―ピンが出没する際に、センタ―ピンはショルダ―ピンの中心軸線に穿設した孔内を摺動するものであるが、このセンタ―ピンの摺動部に撹拌接合時に発生する粉塵が侵入して、センタ―ピンの動作が不良となる虞があると共に、クランプピンがクランプのために接合ツ―ルの外周を摺動するものであるが、この摺動部にも撹拌接合時に発生する粉塵が侵入して、クランプピンの動作が不良となる虞がある。 By the way, when the FSW is configured by gathering the above conventional techniques, when the center pin protrudes and retracts from the tip of the shoulder pin, the center pin slides in the hole formed in the central axis of the shoulder pin. However, there is a risk that dust generated during stir welding will enter the sliding part of the center pin, resulting in a malfunction of the center pin. -It slides on the outer periphery of the rod, but dust generated during stir welding may also enter this sliding part, which may cause the clamp pin to malfunction.
本発明は、従来の技術の有するこのような問題点に鑑みてなされたものであり、その目的とするところは、ショルダ―ピンとセンタ―ピンとの間およびクランプピンと接合ツ―ルとの間に付着した粉塵を機械的に排除し易くして、撹拌接合時におけるセンタ―ピンおよびクランプピンの動作が正確に行わされ得るようにしたＦＳＷの接合ツ―ルの清掃方法を提供しようとするものである。 The present invention has been made in view of such problems of the prior art, and the object of the present invention is to adhere between the shoulder pin and the center pin and between the clamp pin and the joining tool. It is an object of the present invention to provide a method for cleaning an FSW joint tool that makes it easy to mechanically remove the generated dust so that the operation of the center pin and the clamp pin can be performed accurately during stirring joining. .
上記目的を達成するために、本発明におけるＦＳＷの接合ツ―ルの清掃方法は、ショルダ―ピンに対してセンタ―ピンの出没を制御するセンタ―ピン駆動用モ―タを適用し、該センタ―ピン駆動用モ―タにより、ショルダ―ピンに対してセンタ―ピンの突出ストロ―クおよびショルダ―ピン内へのセンタ―ピンの没入ストロ―クを被接合物の接合動作時に比していずれも大きくし、接合ツ―ルを回転させながら、センタ―ピンが突出時にセンタ―ピンの表面を、センタ―ピンがショルダ―ピンに没入時にショルダ―ピンの孔内面とクランプピンの孔内面を、さらにクランプピンをスプリングの付勢力に抗して駆動部本体側へ移動させた時にショルダ―ピンの表面を、それぞれ清掃するようにしたことを特徴とする、ものである。 In order to achieve the above object, the FSW joining tool cleaning method according to the present invention applies a center pin driving motor for controlling the center pin to move in and out of the shoulder pin. -With the pin driving motor, the projecting stroke of the center pin with respect to the shoulder pin and the immersing stroke of the center pin into the shoulder pin are compared with those during the joining operation of the workpiece. The center pin surface when the center pin protrudes while rotating the joint tool, and the inner surface of the hole of the shoulder pin and the inner surface of the clamp pin when the center pin is immersed in the shoulder pin, Further, the surface of the shoulder pin is cleaned when the clamp pin is moved toward the drive unit main body against the urging force of the spring.
本発明に係るＦＳＷの接合ツ―ルの清掃方法では、センタ―ピン駆動用モ―タにより、ショルダ―ピンに対してセンタ―ピンの突出ストロ―クおよびショルダ―ピン内へのセンタ―ピンの没入ストロ―クを被接合物の接合動作時に比していずれも大きくし、接合ツ―ルを回転させながら、センタ―ピンが突出時にセンタ―ピンの表面を、センタ―ピンがショルダ―ピンに没入時にショルダ―ピンの孔内面とクランプピンの孔内面を清掃するようにしたので、センタ―ピン駆動用モ―タによる通常よりもストロ―クの大きいセンタ―ピンの移動によって粉塵が付着しているセンタ―ピンの外周表面やショルダ―ピンの孔内面は充分に露呈されて刷毛等により容易に清掃され、さらにクランプピンの強制移動により粉塵が付着しているショルダ―ピンの外周表面は充分に露呈されて刷毛等により容易に清掃され、またその際に接合ツ―ルが回転状態に維持されていることから、センタ―ピンの表面やショルダ―ピンの孔内面および外周表面が均等に清掃される清掃方法である。 In the FSW joint tool cleaning method according to the present invention, the center pin protruding stroke of the center pin with respect to the shoulder pin and the center pin into the shoulder pin are driven by the center pin driving motor. The immersion stroke is set to be larger than the joining operation of the object to be joined, and while rotating the joining tool, when the center pin protrudes, the center pin surface becomes the center pin becomes the shoulder pin. The inner surface of the hole of the shoulder pin and the inner surface of the hole of the clamp pin are cleaned at the time of immersion, so that dust adheres due to the movement of the center pin with a larger stroke than usual by the motor for driving the center pin. The outer surface of the center pin and the inner surface of the hole of the shoulder pin are sufficiently exposed and easily cleaned with a brush, etc., and the shoulder to which dust is attached by forced movement of the clamp pin Since the outer peripheral surface of the screen is sufficiently exposed and easily cleaned with a brush or the like, and the joint tool is maintained in a rotating state at that time, the surface of the center pin, the inner surface of the hole of the shoulder pin and This is a cleaning method in which the outer peripheral surface is evenly cleaned.
ショルダ―ピン２に対してセンタ―ピン１の出没を制御するセンタ―ピン駆動用モ―タ５を適用し、該センタ―ピン駆動用モ―タ５により、ショルダ―ピン２に対してセンタ―ピン１の突出ストロ―クｃおよびショルダ―ピン２内へのセンタ―ピン１の没入ストロ―クｄを被接合物の接合動作時に比していずれも大きくし、接合ツ―ルを回転させながら、センタ―ピン１が突出時にセンタ―ピン１の表面を、センタ―ピン１がショルダ―ピン２に没入時にショルダ―ピン２の孔２６内面とクランプピン８の孔８３内面を、さらにクランプピン８をスプリング８２の付勢力に抗して駆動部本体７側へ移動させた時にショルダ―ピン２の表面を、それぞれ清掃するようにしたＦＳＷの接合ツ―ルの清掃方法である。 A center pin driving motor 5 for controlling the protrusion and withdrawal of the center pin 1 is applied to the shoulder pin 2, and the center pin driving motor 5 is used to center the shoulder pin 2. Both the projecting stroke c of pin 1 and the immersion stroke d of center pin 1 into shoulder pin 2 are made larger than those during the joining operation of the object to be joined, and the joining tool is rotated. When the center pin 1 protrudes, the surface of the center pin 1 is covered. When the center pin 1 is immersed in the shoulder pin 2, the inner surface of the hole 26 of the shoulder pin 2 and the inner surface of the hole 83 of the clamp pin 8 are further removed. This is a method of cleaning an FSW joint tool in which the surface of the shoulder pin 2 is cleaned when it is moved toward the drive unit body 7 against the urging force of the spring 82.
図１は本発明を実施するのに適したＦＳＷの要部の概略断面図であり、図２は接合作業時における接合ツ―ルとクランプピンの状態説明図、図３は清掃時における接合ツ―ルとクランプピンの状態説明図である。 FIG. 1 is a schematic cross-sectional view of a main part of an FSW suitable for carrying out the present invention, FIG. 2 is a diagram for explaining the state of a bonding tool and a clamp pin during bonding work, and FIG. 3 is a bonding tool during cleaning. -It is a state explanatory drawing of a pin and a clamp pin.
ＦＳＷでは、接合すべき被接合物の接合点にセンタ―ピン１を挿入し、該センタ―ピン１の回転による摩擦熱で被接合物の一部を軟化，撹拌して接合するものであり、その接合装置は概略図１に示すような構成を有している。 In FSW, a center pin 1 is inserted at a joint point of workpieces to be joined, and a part of the workpiece is softened and agitated by frictional heat generated by the rotation of the center pin 1 and joined. The joining apparatus has a configuration as shown in FIG.
ロボットの手首にブラケット（図示せず）を介して取付けられた接合装置本体６には加圧用モ―タ４が固着されており、該加圧用モ―タ４の出力軸４１には加圧用ねじ軸４２が固着されている。そして前記接合装置本体６内にはセンタ―ピン駆動用モ―タ５，撹拌用モ―タ３，センタ―ピン１およびショルダ―ピン２の駆動部本体７が内蔵され、また前記ショルダ―ピン２の外周にはクランプピン８が配置され、さらに前記接合装置本体６の外側前部には固定ア―ム（図示せず）が取り付けられている。なお、上記センタ―ピン１とショルダ―ピン２とで接合ツ―ルが構成されている。 A pressure motor 4 is fixed to a joining apparatus body 6 attached to the wrist of the robot via a bracket (not shown), and a pressure screw is attached to the output shaft 41 of the pressure motor 4. The shaft 42 is fixed. A center pin driving motor 5, an agitating motor 3, a center pin 1 and a shoulder pin 2 driving portion body 7 are built in the joining device main body 6, and the shoulder pin 2 A clamp pin 8 is disposed on the outer periphery of the welding device, and a fixing arm (not shown) is attached to the outer front portion of the joining apparatus body 6. The center pin 1 and the shoulder pin 2 constitute a joining tool.
前記駆動部本体７には前記センタ―ピン駆動用モ―タ５および撹拌用モ―タ３がブラケット７２，７３を介して固着されていると共に該駆動部本体７は加圧用ねじ軸４１のねじと螺合するボ―ルナット７１によりセンタ―ピン軸１１やショルダ―ピン軸２１およびクランプピン８を伴って前後進するようになっており、この駆動部本体７は前記接合装置本体６に配置された直動軸受６２によってガイドされるものである。 The center pin driving motor 5 and the agitating motor 3 are fixed to the driving unit body 7 via brackets 72 and 73, and the driving unit body 7 is screwed on the screw shaft 41 for pressurization. A ball nut 71 that is screwed together with the center pin shaft 11, the shoulder pin shaft 21, and the clamp pin 8 moves forward and backward, and this drive unit body 7 is disposed on the joining device body 6. It is guided by the linear motion bearing 62.
前記センタ―ピン軸１１は、その先端側に形成されたセンタ―ピン螺着部１３にセンタ―ピン１を螺着するようになされ、該センタ―ピン軸１１の螺着部１３の後方はボ―ルスプライン１４を介してショルダ―ピン軸２１に接続され、後部の中空部１２内には前記加圧用ねじ軸４１の先端側が挿通され、該後部の外周にはねじ１５が螺装されている。 The center pin shaft 11 is configured such that the center pin 1 is screwed into a center pin screwed portion 13 formed on the tip end side thereof, and the rear of the screwed portion 13 of the center pin shaft 11 is a bolt. -It is connected to the shoulder pin shaft 21 through the ruspline 14, the distal end side of the pressure screw shaft 41 is inserted into the rear hollow portion 12, and the screw 15 is screwed on the outer periphery of the rear portion. .
前記センタ―ピン軸１１の後部のねじ１５に螺合するボ―ルネジナット１６にはプ―リ１７が固着されており、ブラケット７２によって駆動部本体７に固着された前記センタ―ピン駆動用モ―タ５からの回転力が伝動ベルト５１，プ―リ１７を介してボ―ルネジナット１６に伝達されるようになっている。そして、このボ―ルネジナット１６の回転によってセンタ―ピン軸１１がショルダ―ピン軸２１に対して前後進する。 A pulley 17 is fixed to a ball screw nut 16 that is screwed to a screw 15 at the rear portion of the center pin shaft 11, and the center pin driving motor fixed to the drive unit body 7 by a bracket 72. The rotational force from the rotor 5 is transmitted to the ball screw nut 16 through the transmission belt 51 and the pulley 17. The center pin shaft 11 moves forward and backward with respect to the shoulder pin shaft 21 by the rotation of the ball screw nut 16.
前記ショルダ―ピン軸２１は、その先端側に形成されたショルダ―ピン固着部２２にショルダ―ピン２をくさび止めするようになされ、該ショルダ―ピン軸２１の中空部の前半部内には前記ボ―ルスプライン１４がキ―止めされ、中空部の後半部内にはセンタ―ピン軸１１の軸受２３が配置され、該後半部の外周にはプ―リ２４が固着されている。 The shoulder pin shaft 21 is configured such that the shoulder pin 2 is wedged to a shoulder pin fixing portion 22 formed on the front end side of the shoulder pin shaft 21. The sprue line 14 is keyed, the bearing 23 of the center pin shaft 11 is disposed in the rear half of the hollow part, and the pulley 24 is fixed to the outer periphery of the rear half.
前記プ―リ２４には、ブラケット７３によって駆動部本体７に固着された前記撹拌用モ―タ３からの回転力が伝動ベルト３１を介して伝達され、この回転によりショルダ―ピン２およびセンタ―ピン１は共に回転するようになっている。 A rotational force from the agitating motor 3 fixed to the drive unit main body 7 by the bracket 73 is transmitted to the pulley 24 via the transmission belt 31, and this rotation causes the shoulder pin 2 and the center to be rotated. The pins 1 are designed to rotate together.
前記クランプピン８は、そのホルダ―８１と前記駆動部本体７間に配置されたスプリング８２によって突出方向に付勢されている。 The clamp pin 8 is urged in the protruding direction by a spring 82 disposed between the holder 81 and the drive unit main body 7.
以上のような構成を備えたＦＳＷでは、先ずロボットにより該ＦＳＷの全体が被接合物の所望の接合点に対向するような位置に移動される。 In the FSW having the above-described configuration, first, the entire FSW is moved by the robot to a position facing a desired joining point of the workpiece.
そこで、撹拌用モ―タ３と加圧用モ―タ４とが駆動され、加圧用モ―タ４によるボ―ルナット７１の前進により、駆動部本体７は撹拌用モ―タ３およびセンタ―ピン駆動用モ―タ５を伴って被接合物の接合点に向けて前進すると共に、撹拌用モ―タ３によりショルダ―ピン２およびセンタ―ピン１は共に回転する。この時，センタ―ピン１の先端およびクランプピン８の先端はショルダ―ピン２のショルダ部２５より突出した状態（図２でａ参照）となっている。 Therefore, the agitating motor 3 and the pressurizing motor 4 are driven, and the ball nut 71 is advanced by the pressurizing motor 4 so that the drive unit body 7 is driven by the agitating motor 3 and the center pin. Advancing toward the joining point of the object to be joined together with the driving motor 5, the shoulder pin 2 and the center pin 1 are both rotated by the agitating motor 3. At this time, the tip of the center pin 1 and the tip of the clamp pin 8 are in a state of protruding from the shoulder portion 25 of the shoulder pin 2 (see a in FIG. 2).
加圧用モ―タ４によりショルダ―ピン２のショルダ部２５が被接合物の表面に当接した時点では、クランプピン８の先端はショルダ―ピン２のショルダ部２５と同位に押し込まれて被接合物をクランプし、センタ―ピン１は、被接合物内に挿入されており接合点において回転状態にあり、この時点で加圧用モ―タ４による駆動部本体７の前進を停止するが、センタ―ピン１の回転により該センタ―ピン１は、被接合物と摩擦して被接合物の一部を溶解させこれを撹拌しており、この溶解物が被接合物の接合を行うものとなる。そして、ショルダ―ピン２のショルダ部２５は溶融状態にある被接合物の表面を加圧する状態にある。 When the shoulder portion 25 of the shoulder pin 2 comes into contact with the surface of the object to be joined by the pressurizing motor 4, the tip of the clamp pin 8 is pushed into the shoulder portion 25 of the shoulder pin 2 and is joined. The center pin 1 is inserted into the object to be joined and is in a rotating state at the joining point. At this point, the advancement of the drive unit body 7 by the pressurizing motor 4 is stopped. The rotation of the pin 1 causes the center pin 1 to rub against the object to be welded to dissolve a part of the object to be agitated, and this melted material joins the object to be joined. . The shoulder portion 25 of the shoulder pin 2 is in a state of pressurizing the surface of the object to be joined in a molten state.
そして、上記の接合動作が行われると、センタ―ピン駆動用モ―タ５が駆動されて、センタ―ピン１は被接合物の接合点から引き抜かれてショルダ―ピン２のショルダ部２５と同一レベル或はそれより更にショルダ―ピン２内に引き抜かれる（図２でｂ参照）。この間も撹拌用モ―タ３は駆動されているので、回転するショルダ―ピン２のショルダ部２５は被接合物の接合点の表面を平らにするように動作する。 When the above-described joining operation is performed, the center pin driving motor 5 is driven, and the center pin 1 is pulled out from the joining point of the object to be joined and is the same as the shoulder portion 25 of the shoulder pin 2. It is withdrawn into the shoulder pin 2 at level or further (see b in FIG. 2). During this time, since the agitating motor 3 is driven, the shoulder portion 25 of the rotating shoulder pin 2 operates so as to flatten the surface of the joining point of the object to be joined.
なお、ショルダ―ピン２のショルダ部２５に対するセンタ―ピン１の出没は、加圧用モ―タ４や撹拌用モ―タ３の駆動とは関係なく独自にセンタ―ピン駆動用モ―タ５を駆動させることにより任意に調節できるものであり、またショルダ部２５に対するセンタ―ピン１の出没量および加圧力は任意に調節が可能であり、また、該モ―タ５の駆動は接合点の溶解物の状況に応じて必要時に動作させることが可能である。 It should be noted that the center pin 1 is raised and lowered with respect to the shoulder portion 25 of the shoulder pin 2 independently of the driving of the pressurizing motor 4 and the agitating motor 3. It can be arbitrarily adjusted by driving, and the amount of protrusion and the pressing force of the center pin 1 with respect to the shoulder portion 25 and the pressing force can be arbitrarily adjusted, and the motor 5 is driven to dissolve the junction point. It can be operated when necessary according to the situation of the object.
ところで、上記のようなセンタ―ピン１がショルダ―ピン２内に挿通されてショルダ―ピン２に対してセンタ―ピン１の先端が出没するようになされ、撹拌用モ―タ３により接合ツ―ルが回転されるＦＳＷにおいては、ショルダ―ピン２の先端からセンタ―ピン１が出没する際に、センタ―ピン１はショルダ―ピン２の中心軸線に穿設した孔２６内を摺動するものであるが、このセンタ―ピン１の摺動部に撹拌接合時に発生する粉塵が侵入して、センタ―ピン１の動作が不良となる虞がある。 By the way, the center pin 1 as described above is inserted into the shoulder pin 2 so that the tip of the center pin 1 protrudes and retracts from the shoulder pin 2, and is joined by the agitating motor 3. In the FSW that rotates the center pin 1, the center pin 1 slides in the hole 26 formed in the center axis of the shoulder pin 2 when the center pin 1 protrudes and retracts from the tip of the shoulder pin 2. However, there is a possibility that dust generated during the stir welding enters the sliding portion of the center pin 1 and the operation of the center pin 1 becomes defective.
また、クランプピン８の先端は、ショルダ―ピン２のショルダ部２５が被接合物の表面に当接する時点まではセンタ―ピンと同様にショルダ部２５より略ａだけ突出しており、ショルダ部２５が被接合物の表面に当接した時点ではクランプピン８の先端はショルダ部２５と同位に押し込まれて被接合物をクランプし、ショルダ部２５が被接合物の表面から離間すると再度ａだけ突出するものであって、クランプピン８の孔８３はショルダ―ピン２の外周表面を摺動するものであるが、この摺動部にも撹拌接合時に発生する粉塵が侵入して、クランプピン８の動作が不良となる虞もある。 Further, the tip of the clamp pin 8 protrudes approximately a from the shoulder portion 25 in the same manner as the center pin until the shoulder portion 25 of the shoulder pin 2 contacts the surface of the object to be joined. At the point of contact with the surface of the object to be joined, the tip of the clamp pin 8 is pushed into the shoulder part 25 and clamps the object to be joined, and when the shoulder part 25 is separated from the surface of the object to be joined, it projects again by a. The hole 83 of the clamp pin 8 slides on the outer peripheral surface of the shoulder pin 2. The dust generated during the stir welding enters the sliding portion, and the operation of the clamp pin 8 is There is also a risk of failure.
そこで、ＦＳＷによる撹拌接合終了後に、センタ―ピン１とショルダ―ピン２とからなる接合ツ―ルを撹拌用モ―タ３で回転させながら、先ず，センタ―ピン駆動用モ―タ５を駆動してショルダ―ピン２に対してセンタ―ピン１を突出させてその突出ストロ―クをｃ（ｃ〉ａ）とし、この突出したｃの範囲でセンタ―ピン１の表面に付着している粉塵を刷毛等により清掃する。 Therefore, after the stir welding by the FSW is completed, the center pin driving motor 5 is first driven while the joining tool comprising the center pin 1 and the shoulder pin 2 is rotated by the stirring motor 3. Then, the center pin 1 is protruded from the shoulder pin 2 and the protruding stroke is defined as c (c> a). Dust adhering to the surface of the center pin 1 within the range of the protruding c. Clean with a brush.
上記センタ―ピン１の表面の清掃が終了したら、センタ―ピン駆動用モ―タ５を逆転駆動してショルダ―ピン２に対してセンタ―ピン１を没入させてその没入ストロ―クをｄ（ｄ〉ｂ）とし、この没入したｄの範囲でショルダ―ピン２の孔２６内面に付着している粉塵を刷毛等により清掃すると共にクランプピン８の孔８３内面に付着している粉塵を刷毛等により清掃する。 When the cleaning of the surface of the center pin 1 is completed, the center pin driving motor 5 is driven reversely so that the center pin 1 is immersed in the shoulder pin 2 and the immersion stroke is set to d ( d> b), and the dust adhering to the inner surface of the hole 26 of the shoulder pin 2 is cleaned with a brush or the like in the range of d, and the dust adhering to the inner surface of the hole 83 of the clamp pin 8 is brushed or the like. Clean with.
上記ショルダ―ピン２の孔２６内面およびクランプピン８の孔８３内面の清掃が終了したら、クランプピン８をスプリング８２の付勢力に抗して駆動部本体７側へ移動させ、ショルダ―ピン２の一部表面ｅを露出させ、この露出したショルダ―ピンの表面に付着している粉塵を刷毛等により清掃する。 When the cleaning of the inner surface of the hole 26 of the shoulder pin 2 and the inner surface of the hole 83 of the clamp pin 8 is completed, the clamp pin 8 is moved toward the drive unit main body 7 against the biasing force of the spring 82, and the shoulder pin 2 A part of the surface e is exposed, and dust adhering to the exposed shoulder pin surface is cleaned with a brush or the like.
このようにして、被接合物の接合動作時にセンタ―ピン１が突出したときのショルダ―ピン２内でセンタ―ピン１のｃ‐ａの表面及びセンタ―ピン１が没入したときのショルダ―ピン２内でセンタ―ピン１のｄ‐ｂの範囲のショルダ―ピン２の孔２６の内面とクランプピン８の孔８３内面およびクランプピン８をスプリング８２の付勢力に抗して駆動部本体７側へ移動させたときのｅの範囲のショルダ―ピン２の外周表面も清掃されるので、ＦＳＷによる撹拌接合時におけるセンタ―ピン１の動作およびクランプピン８の動作が正確に行わされ得るようになる。そして、この清掃作業中は接合ツ―ルが回転状態に維持されていることから、センタ―ピン１の表面やショルダ―ピン２の孔２６内面やショルダ―ピン２の外周表面が均等に清掃される。 In this way, the surface of the center pin 1 ca and the shoulder pin when the center pin 1 is immersed in the shoulder pin 2 when the center pin 1 protrudes during the joining operation of the workpieces. 2, the inner surface of the hole 26 of the shoulder pin 2 in the range of db of the center pin 1, the inner surface of the hole 83 of the clamp pin 8, and the clamp pin 8 against the urging force of the spring 82, The outer peripheral surface of the shoulder pin 2 in the range of e when moved to is also cleaned, so that the operation of the center pin 1 and the operation of the clamp pin 8 can be performed accurately during the stir welding by FSW. . Since the joining tool is maintained in a rotating state during the cleaning operation, the surface of the center pin 1, the inner surface of the hole 26 of the shoulder pin 2, and the outer peripheral surface of the shoulder pin 2 are evenly cleaned. The
なお、これまで主としてスポット接合のＦＳＷについて説明をしたが、本発明に係る清掃方法はスポット接合のＦＳＷに限らず突き合わせ接合のＦＳＷにも適用できるものである。 Although the description has been made mainly on the spot-joint FSW so far, the cleaning method according to the present invention is applicable not only to the spot-joint FSW but also to the butt-joint FSW.
１ センタ―ピン
２ ショルダ―ピン
３ 撹拌用モ―タ
５ センタ―ピン駆動用モ―タ
８ クランプピン
２６ ショルダ―ピンの孔
８２ スプリング
８３ クランプピンの孔
ａ，ｃ センタ―ピンの突出ストロ―ク
ｂ，ｄ センタ―ピンの没入ストロ―ク
1 Center pin 2 Shoulder pin 3 Motor for stirring 5 Motor for driving center pin 8 Clamp pin 26 Hole for shoulder pin 82 Spring 83 Hole for clamp pin a, c Projection stroke of center pin b, d Center pin immersive stroke
Claims (1)
FSW that softens and agitates the workpieces by frictional heat generated by the rotation of the joining tool consisting of the center pin and shoulder pin, and urges the outer periphery of the joining tool from the drive unit body side by a spring. The center pin is inserted into the shoulder pin so that the tip of the center pin protrudes and protrudes from the shoulder pin, and the joining tool is rotated by the stirring motor. In the FSW, a center pin driving motor for controlling the center pin protrusion and depression is applied to the shoulder pin, and the center pin driving motor is used to control the center pin with respect to the shoulder pin. The projecting stroke of the center and the center pin's immersion stroke into the shoulder pin are both larger than when the workpiece is joined, and the center tool is rotated while rotating the joining tool. When the center pin protrudes, the center pin surface, when the center pin is immersed in the shoulder pin, the shoulder pin hole inner surface and the clamp pin hole inner surface, and the clamp pin against the biasing force of the spring A method for cleaning an FSW joint tool, wherein the shoulder pins are each cleaned when moved to the side.
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| EP3842174A4 (en) * | 2018-08-23 | 2022-05-11 | Kawasaki Jukogyo Kabushiki Kaisha | Double-action friction-stir joining system and method for operating same |
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| CN103801818B (en) * | 2014-03-05 | 2016-03-16 | 中国航空工业集团公司北京航空制造工程研究所 | A kind of plug-in type flowage friction spot welding method and instrument thereof |
| KR101616751B1 (en) * | 2014-08-12 | 2016-05-02 | (주)태광테크 | Friction stir welding tool unit |
| US11633802B2 (en) * | 2017-09-04 | 2023-04-25 | Kawasaki Jukogyo Kabushiki Kaisha | Method for operating double-action friction stir welding device, and double-action friction stir welding device |
| CN107598357B (en) * | 2017-09-08 | 2019-10-29 | 广东省焊接技术研究所（广东省中乌研究院） | One kind is with weldering filled type without keyhole friction stir welding method |
| JP7186361B2 (en) * | 2019-04-11 | 2022-12-09 | 株式会社不二越 | Cleaning equipment for friction stir welding tools |
| EP3804900A1 (en) * | 2019-10-09 | 2021-04-14 | Harms & Wende GmbH & Co. KG | Method and system for friction spot welding |
| CN112894124A (en) * | 2021-03-11 | 2021-06-04 | 陕西国防工业职业技术学院 | Friction stir welding tool and friction stir welding device |
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| JP3709972B2 (en) * | 2000-03-17 | 2005-10-26 | 住友軽金属工業株式会社 | Aluminum alloy spot joining method and apparatus |
| JP4183964B2 (en) * | 2002-04-12 | 2008-11-19 | 川崎重工業株式会社 | Friction stir welding equipment |
| JP2006000858A (en) * | 2004-06-15 | 2006-01-05 | Honda Motor Co Ltd | Method and device for friction stir joining |
| JP4416634B2 (en) * | 2004-12-13 | 2010-02-17 | Ｏｂａｒａ株式会社 | Tool for preventing clogging of tool pins for friction stir spot welding |
| JP4754256B2 (en) * | 2005-04-19 | 2011-08-24 | 住友軽金属工業株式会社 | Rotating tool for friction stir spot welding and friction stir spot joining method using the same |
| JP2007029979A (en) * | 2005-07-26 | 2007-02-08 | Sumitomo Light Metal Ind Ltd | Double acting type rotary tool for friction stir spot welding |
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| EP3842174A4 (en) * | 2018-08-23 | 2022-05-11 | Kawasaki Jukogyo Kabushiki Kaisha | Double-action friction-stir joining system and method for operating same |
| US11938558B2 (en) | 2018-08-23 | 2024-03-26 | Kawasaki Jukogyo Kabushiki Kaisha | Double-action friction-stir joining system and method utilizing a cleaning mechanism |
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