WO2014155416A1 - スポット溶接用電極取外装置 - Google Patents
スポット溶接用電極取外装置 Download PDFInfo
- Publication number
- WO2014155416A1 WO2014155416A1 PCT/JP2013/002058 JP2013002058W WO2014155416A1 WO 2014155416 A1 WO2014155416 A1 WO 2014155416A1 JP 2013002058 W JP2013002058 W JP 2013002058W WO 2014155416 A1 WO2014155416 A1 WO 2014155416A1
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- WO
- WIPO (PCT)
- Prior art keywords
- electrode
- operation lever
- spot welding
- pressing
- rotating
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
- B23K11/115—Spot welding by means of two electrodes placed opposite one another on both sides of the welded parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/3072—Devices for exchanging or removing electrodes or electrode tips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/31—Electrode holders and actuating devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
Definitions
- the present invention relates to an electrode removal device for spot welding used in, for example, an automobile production line.
- spot welding is used in which an electrode attached to the tip of a shank of a welding gun is pressed against a steel plate to pressurize it, and then the steel plate is heated by resistance heating when energized.
- an electrode is removed from a shank by a spot welding electrode removing device.
- a spot welding electrode removing device disclosed in Patent Document 1
- a rotating body is rotatably provided around the rotation center, and an electrode is set with its center coinciding with the rotation center of the rotating body.
- the rotating body is provided with a contact portion with which a part of the outer peripheral surface of the electrode contacts.
- a linear operation lever is fixed to the rotating body in a posture extending in the radial direction of the rotating body so as to face the contact portion with the electrode setting position interposed therebetween. Then, when the electrode is disposed between the contact portion and the operation lever and the operation lever is operated to rotate the rotating body to one side, the end portion of the operation lever on the contact portion side is the electrode. The electrode is sandwiched between the contact portion by pressing the outer surface of the non-contact portion side, and the operation lever is operated to rotate the electrode together with the rotating body to remove it from the tip of the shank. ing.
- the present invention has been made in view of such a point, and an object of the present invention is to provide a spot welding electrode removing device that is compact and hardly broken.
- the present invention is characterized in that the shape of the operation lever has been devised.
- the spot welding electrode removal device that removes the electrode attached to the tip of the shank of the spot welding gun from the tip of the shank.
- the rotating body is provided so as to be rotatable around the rotation center, and the electrode is set with its center aligned with the rotation center, and the outer peripheral surface of the electrode is provided on the rotating body.
- a pressing portion for pressing the electrode at a position facing the abutting portion closer to the tip, and the tip side of the rotating body is closer to the abutting portion than the pressing portion.
- a J-shaped operation lever pivotally supported on the side of the part, the electrode is set between the contact part and the pressing part, and the operation lever is rotated to the electrode side.
- the electrode is sandwiched between the pressing portion and the contact portion by pressing the outer peripheral surface of the electrode with the pressing portion by a moving operation, and the operation lever is further rotated to the electrode side to Remove the electrode from the tip of the shank by rotating it with the rotating body.
- the operation lever includes a main body portion and the pressing portion, and the pressing portion is detachable from the main body portion.
- the rotating body accommodates the contact portion and the distal end side of the operation lever inside, and the contact portion and the pressing portion A rotating case having a corresponding electrode insertion hole between the first and second portions, wherein the rotating case is formed with a plurality of drainage holes for draining water that has entered the rotating case.
- At least one of the tip side surface and the contact portion surface of the operation lever is subjected to trinickel plating treatment or cationic electrodeposition coating. It is characterized by being.
- the sectional moment on the distal end side of the operating lever is increased, and the operating lever is not affected even if the electrode is removed repeatedly. Can prevent deformation and damage.
- the pressing portion which is one component of the operating lever, needs to be partially replaced. It is not necessary to replace the whole, the cost of parts is reduced, and the maintenance of the apparatus is easy.
- the pressing protrusion pushes the electrode from the side and peels it from the contact portion. It is possible to prevent the state from being engulfed.
- the contact portion and the front end side of the operation lever are not easily contaminated by dust or the like in the factory, so that failure of the device due to contamination can be prevented.
- the cooling water is drained out of the rotating case through the drainage holes. Corrosion can be prevented.
- the operation lever is less likely to rust, so that it is possible to reliably prevent a failure of the device caused by corrosion.
- FIG. 3 is a cross-sectional view taken along line BB in FIG. 2.
- FIG. 3 is a view corresponding to FIG. 2 with the upper case removed, showing a state immediately before the electrode is removed from the tip of the shank.
- the state immediately after rotating the operation lever from the state of FIG. 4 is shown.
- FIG. 6 shows a state immediately after the operation lever is further rotated from the state of FIG. 5 to remove the electrode from the tip of the shank.
- FIG. 1 shows a spot welding electrode removing apparatus 1 according to an embodiment of the present invention.
- This electrode detachment apparatus 1 is a welding gun G used when welding steel plates by spot welding, in order to remove the electrodes 10 respectively attached to the tips of a pair of upper and lower shanks G1 of the welding gun G from the shanks G1. belongs to.
- the electrode removal device 1 includes a flat rectangular parallelepiped casing 2 and a device main body 3 accommodated in the casing 2, and the electrodes 10 are inserted into the casing 2 in the casing 2.
- a pair of through-holes 2a are formed vertically.
- the apparatus body 3 has a U-shaped support frame 5 in plan view having a substantially disc-shaped iron rotating case (rotating body) 4 and an opening 5 a that opens to the side. And.
- the inner side surface of the support frame 5 corresponds to the outer peripheral surface of the rotary case 4, and the rotary case 4 is accommodated inside the support frame 5 so as to be rotatable around a central axis (rotation center). .
- the rotating case 4 is divided into an upper case 41 located on the upper side and a lower case 42 located on the lower side at a position substantially in the middle of the upper and lower sides.
- the upper case 41 has a first recess 41a that opens downward, and an electrode insertion hole 41b for inserting the electrode 10 is formed at the center of the upper base of the first recess 41a.
- a first notch 41 c is formed in the outer peripheral portion of the upper case 41 corresponding to the opening 5 a of the support frame 5.
- the lower case 42 has a second recess 42a that opens upward, and an electrode insertion hole 42b for inserting the electrode 10 is provided at the center of the bottom of the second recess 42a. It is formed to face 41b.
- a second cutout portion 42c is formed in the outer peripheral portion of the lower case 42 corresponding to the first cutout portion 41c, and the water that has entered the rotary case 4 is drained around the electrode insertion hole 42b.
- a plurality of drain holes 42d are formed.
- the rotating case 4 is assembled by aligning the opening periphery of the upper case 41 and the opening periphery of the lower case 42 with each other, and the housing 40 is formed by the first recess 41a and the second recess 42a.
- a case opening 44 is formed by the first notch 41c and the second notch 42c.
- an extending plate 43 that extends outward in the radial direction of the rotating case 4 is provided.
- One end of the coil spring 6 is connected to the extension end of the extension plate 43, and the other end of the coil spring 6 is connected to the device fixing side 12, so that the coil spring 6 is connected to the extension plate 43 and the device fixing side.
- the coil spring 6 is urged to rotate counterclockwise when the rotary case 4 is viewed from above.
- a fan-shaped contact portion in plan view is provided on the opening 5a side of the rotating case 4.
- the abutting portion is made of iron independent of the rotating case 4 and is detachably fixed to the rotating case 4, and the surface is subjected to trinickel plating treatment. ing.
- the contact portion is referred to as a contact member 7.
- the abutting member 7 has a substantially T-shaped cross section in which the inner part is thicker than the outer part, and the inner part is inserted into the electrode insertion holes 41b and 42b.
- the upper and lower cases 41 and 42 are substantially flush with the upper and lower surfaces.
- a plurality of sharp projections are formed around the rotation center of the rotating case 4 on the inner side surface of the abutting member 7 to make it difficult to slip.
- the apparatus main body 3 is provided with an iron operation lever 8 having a trinickel plating treatment on the entire surface, and the operation lever 8 has a J-shaped main body portion 8a in plan view.
- the main body portion 8 a includes a straight portion 81 and a curved portion 82 that is continuous with one end of the straight portion 81, and the distal end side of the operation lever 8 is housed in the housing portion 40.
- the end side extends from the case opening 44 to the outside of the rotating case 4.
- a pressing portion for pressing the electrode 10 is provided on the inner peripheral side of the bending portion 82, that is, on the position facing the contact member 7 near the tip of the operation lever 8.
- the pressing portion is made of iron independent of the main body portion 8a and is detachably fixed to the main body portion 8a.
- the contact member 7 is inserted into the electrode insertion holes 41b and 42b. Opposite to.
- the pressing portion is referred to as a pressing member 9.
- the pressing member 9 has a U-shaped cross section and is attached to the operation lever 8 so that the upper part and the lower part are inserted into the electrode insertion holes 41b and 42b and the upper and lower cases 41, 42 is substantially flush with the upper and lower surfaces of 42.
- a plurality of sharp protrusions are formed around the rotation center of the rotating case 4 on the surface of the pressing member 9 facing the contact member 7 in order to prevent slipping.
- the distal end side of the operation lever 8 with respect to the pressing member 9 is pivotally supported by a pivot shaft 13 extending vertically to the side of the contact member 7 of the rotating case 4.
- the electrode 10 At the tip of the operation lever 8 (the end of the bending portion 82), when the operation lever 8 is rotated to the counter electrode 10 side and the pressing member 9 is separated from the electrode 10, the electrode 10 A pressing protrusion 82a that presses the side surface of the electrode 10 to release the biting on the contact member 7 is formed.
- the apparatus main body 3 is provided with a fluid pressure cylinder 11 extending in the horizontal direction intersecting the linear portion 81 of the operation lever 8.
- the fluid pressure cylinder 11 has a cylindrical cylinder body 11a and a piston rod 11b extending outward from one longitudinal end of the cylinder body 11a.
- the distal end of the piston rod 11b is connected to the base end of the linear portion 81.
- the operation lever 8 resists the biasing force of the coil spring 6.
- the operation lever 8 is rotated to the counter electrode 10 side by the biasing force of the coil spring 6.
- the electrode 10 When the electrode 10 is removed, the electrode 10 is inserted from the electrode insertion holes 41b and 42b so as not to contact the pressing protrusion 82a, and the center of the rotating case 4 is rotated.
- the outer peripheral surface of the electrode 10 is set between the contact member 7 and the pressing member 9 so as to coincide with the center, and the inner surface of the contact member 7 is set in the accommodating portion 40. It comes to contact a part of.
- the pressing member 9 presses the outer peripheral surface of the electrode 10 on the side opposite to the abutting member 7 by rotating the operating lever 8 toward the electrode 10 side. 9 and the contact member 7, and the electrode 10 is rotated together with the rotating case 4 against the urging force of the coil spring 6 by further rotating the operating lever 8 toward the electrode 10. It is made to remove from the front-end
- the electrode 10 mounted on the upper shank G1 is inserted into the electrode insertion hole 41b of the rotating case 4 through the through hole 2a of the casing 2 so as not to contact the pressing protrusion 82a, as shown in FIG.
- the center of the electrode 10 is matched with the center of rotation of the rotating case 4.
- the fluid pressure cylinder 11 is extended to advance the piston rod 11b, and the operation lever 8 is rotated to the electrode 10 side.
- the pressing member 9 presses the outer peripheral surface of the electrode 10 on the side opposite to the contact member 7, thereby sandwiching the electrode 10 with the contact member 7.
- the rotating case 4 does not rotate clockwise in FIG. 5 due to the biasing force of the coil spring 6.
- the fluid pressure cylinder 11 is extended to move the piston rod 11b further, and the operation lever 8 is rotated to the electrode 10 side.
- the electrode 10 rotates with the rotating case 4 against the biasing force of the coil spring 6 and is detached from the shank G1.
- the fluid pressure cylinder 11 is contracted to retract the piston rod 11b, and the operation lever 8 is rotated to the counter electrode 10 side to separate the pressing member 9 from the electrode 10.
- the pressing protrusion 82a of the operation lever 8 presses the side surface of the electrode 10, even if the electrode 10 bites against the contact member 7, the biting of the electrode 10 onto the contact member 7 is forced. Is released.
- the electrode 10 attached to the lower shank G1 is also removed from the shank G1 in the same manner as the electrode 10 attached to the upper shank G1.
- the sectional moment on the distal end side of the operation lever 8 is increased. Even if the outside work is repeated, deformation and breakage of the operation lever 8 can be prevented. Further, in order to increase the secondary moment on the distal end side of the operation lever 8, it is not necessary to increase the structure on the distal end side of the operation lever 8 in the radial direction or the rotation center direction of the rotating case 4. The whole can be made compact.
- the pressing protrusion 82a pushes the electrode 10 from the side and peels it from the contact member 7. It is possible to prevent the contact member 7 from being stuck.
- the contact member 7 and the front end of the operation lever 8 are hardly contaminated by dust or the like in the factory, so that it is possible to prevent failure of the electrode removing device 1 due to contamination. Further, when the electrode 10 is replaced, even if the cooling water leaks from the spot welding gun G into the rotating case 4, the cooling water is drained out of the rotating case 4 from each drain hole 42d. Corrosion of the member 7 and the operation lever 8 can be prevented.
- the operation lever 8 Since the entire surface of the operation lever 8 is trinickel-plated, the operation lever 8 is less likely to rust, and the failure of the electrode removal device 1 caused by corrosion of the operation lever 8 is surely prevented. be able to.
- trinickel plating treatment is applied to the entire surface of the contact member 7 and the operation lever 8
- cationic electrodeposition coating is applied to the entire surface of the contact member 7 and the operation lever 8. Also good.
- the trinickel plating process is performed on the entire surface of the operation lever 8, but the trinickel plating process is performed only on the front end side of the operation lever 8 which is easily in contact with water due to the structure of the apparatus. You may give it.
- the contact member 7 and the operation lever 8 are subjected to trinickel plating, but at least one of the contact member 7 and the operation lever 8 is subjected to trinickel plating or cationic electrodeposition coating. It only has to be applied.
- the pressing member 9 can be attached to and detached from the operation lever 8, but the pressing member 9 may be integrated with the operation lever 8.
- the contact member 7 is detachable from the rotary case 4, but the contact member 7 may be integrated with the rotary case 7.
- the plurality of drain holes 42 d are formed only in the lower case 42, but a plurality of drain holes may be formed in the upper case 41.
- the electrode removal device 1 is used in such a posture that the rotation center of the rotation case 4 faces in the vertical direction.
- the rotation center of the rotation case 4 is in the horizontal direction. It can also be used in a facing position.
- the present invention is suitable for, for example, an electrode removal device for spot welding used in an automobile production line.
- Electrode removal device for spot welding 4 Rotating case (rotating body) 7 Contact member (contact part) 8 Operation lever 8a Body 9 Pressing member (pressing part) 10 Electrode 41b, 42b Electrode insertion hole 42d Drainage hole 82a Pressing protrusion G Spot welding gun G1 Shank
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- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
Description
4 回転ケース(回転体)
7 当接部材(当接部)
8 操作レバー
8a 本体部
9 押圧部材(押圧部)
10 電極
41b、42b 電極挿入孔
42d 排水孔
82a 押圧突起
G スポット溶接用ガン
G1 シャンク
Claims (5)
- スポット溶接用ガンのシャンク先端に装着された電極を上記シャンク先端から取り外すスポット溶接用電極取外装置であって、
回転中心周りに回転可能に設けられ、上記電極がその中心を上記回転中心に合致させてセットされる回転体と、
該回転体に設けられ、上記電極の外周面の一部が当接する当接部と、
先端寄りの上記当接部と対向する位置に上記電極を押圧するための押圧部を有し、該押圧部よりも先端側が上記回転体の上記当接部側方に回動可能に軸支されたJ字状の操作レバーとを備え、
上記電極を上記当接部と上記押圧部との間にセットし、上記操作レバーの上記電極側への回動操作により押圧部で上記電極の反当接部側外周面を押圧して該押圧部と上記当接部とで上記電極を挟み込み、さらなる上記操作レバーの上記電極側への回動操作により上記電極を上記回転体とともに回転させて上記シャンク先端から取り外すことを特徴とするスポット溶接用電極取外装置。 - 請求項1に記載のスポット溶接用電極取外装置において、
上記操作レバーは、本体部と上記押圧部とを備え、
該押圧部は、上記本体部に対して着脱可能となっていることを特徴とするスポット溶接用電極取外装置。 - 請求項1又は2に記載のスポット溶接用電極取外装置において、
上記操作レバーの先端には、当該操作レバーを反電極側へ回動させて上記押圧部を上記電極から離間させた際、上記電極の上記当接部への食い付きを解除するために上記電極の側面を押圧する押圧突起が形成されていることを特徴とするスポット溶接用電極取外装置。 - 請求項1から3のいずれか1つに記載のスポット溶接用電極取外装置において、
上記回転体は、内部に上記当接部及び上記操作レバーの先端側を収容し、且つ、上記当接部と上記押圧部との間に対応する電極挿入孔を有する回転ケースであり、
該回転ケースには、当該回転ケース内に入り込んだ水を排水する排水孔が複数形成されていることを特徴とするスポット溶接用電極取外装置。 - 請求項1から4のいずれか1つに記載のスポット溶接用電極取外装置において、
上記操作レバーの先端側表面及び上記当接部表面の少なくとも一方には、トリニッケルめっき処理、又はカチオン電着塗装が施されていることを特徴とするスポット溶接用電極取外装置。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112013020111A BR112013020111B1 (pt) | 2013-03-26 | 2013-03-26 | aparelho para remoção de eletrodo de solda a ponto |
KR1020137019792A KR101495460B1 (ko) | 2013-03-26 | 2013-03-26 | 스팟 용접용 전극분리장치 |
EP13879740.2A EP2942145B1 (en) | 2013-03-26 | 2013-03-26 | Electrode removing device for spot welding |
JP2014535830A JP5851620B2 (ja) | 2013-03-26 | 2013-03-26 | スポット溶接用電極取外装置 |
CN201380000618.1A CN104334310B (zh) | 2013-03-26 | 2013-03-26 | 点焊用电极取卸装置 |
PCT/JP2013/002058 WO2014155416A1 (ja) | 2013-03-26 | 2013-03-26 | スポット溶接用電極取外装置 |
US14/299,438 US9321123B2 (en) | 2013-03-26 | 2014-06-09 | Spot welding electrode removal apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2013/002058 WO2014155416A1 (ja) | 2013-03-26 | 2013-03-26 | スポット溶接用電極取外装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US14/299,438 Continuation US9321123B2 (en) | 2013-03-26 | 2014-06-09 | Spot welding electrode removal apparatus |
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WO2014155416A1 true WO2014155416A1 (ja) | 2014-10-02 |
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PCT/JP2013/002058 WO2014155416A1 (ja) | 2013-03-26 | 2013-03-26 | スポット溶接用電極取外装置 |
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US (1) | US9321123B2 (ja) |
EP (1) | EP2942145B1 (ja) |
JP (1) | JP5851620B2 (ja) |
KR (1) | KR101495460B1 (ja) |
CN (1) | CN104334310B (ja) |
BR (1) | BR112013020111B1 (ja) |
WO (1) | WO2014155416A1 (ja) |
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JP2022517525A (ja) * | 2018-09-04 | 2022-03-09 | キョクトー チャイナ カンパニー リミテッド | スポット溶接用電極取外装置 |
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BR112016028106A2 (pt) * | 2016-03-31 | 2019-09-24 | Kyokutoh Co Ltd | removedor de ponta de eletrodo |
US10150177B2 (en) * | 2016-04-11 | 2018-12-11 | Tipman Co., Ltd. | Rotary changer |
BR112020025320B1 (pt) | 2018-06-12 | 2023-05-16 | Doben Limited | Estação de soldagem e método de operar uma estação de soldagem |
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- 2013-03-26 JP JP2014535830A patent/JP5851620B2/ja active Active
- 2013-03-26 EP EP13879740.2A patent/EP2942145B1/en active Active
- 2013-03-26 KR KR1020137019792A patent/KR101495460B1/ko active IP Right Grant
- 2013-03-26 BR BR112013020111A patent/BR112013020111B1/pt active IP Right Grant
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JP7127911B2 (ja) | 2018-09-04 | 2022-08-30 | キョクトー チャイナ カンパニー リミテッド | スポット溶接用電極取外装置 |
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KR101495460B1 (ko) | 2015-02-24 |
EP2942145B1 (en) | 2019-09-25 |
US9321123B2 (en) | 2016-04-26 |
US20140291299A1 (en) | 2014-10-02 |
EP2942145A4 (en) | 2016-06-01 |
BR112013020111A2 (pt) | 2016-10-25 |
JP5851620B2 (ja) | 2016-02-03 |
KR20140126234A (ko) | 2014-10-30 |
EP2942145A1 (en) | 2015-11-11 |
CN104334310A (zh) | 2015-02-04 |
CN104334310B (zh) | 2016-08-10 |
BR112013020111B1 (pt) | 2018-07-24 |
JPWO2014155416A1 (ja) | 2017-02-16 |
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