JP4891915B2 - 単一ピストンまたは2重ピストンを使用する低衝撃スポット溶接シリンダ - Google Patents
単一ピストンまたは2重ピストンを使用する低衝撃スポット溶接シリンダ Download PDFInfo
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- JP4891915B2 JP4891915B2 JP2007544703A JP2007544703A JP4891915B2 JP 4891915 B2 JP4891915 B2 JP 4891915B2 JP 2007544703 A JP2007544703 A JP 2007544703A JP 2007544703 A JP2007544703 A JP 2007544703A JP 4891915 B2 JP4891915 B2 JP 4891915B2
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Classifications
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- 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
- B23K11/314—Spot welding guns, e.g. mounted on robots
-
- 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
- B23K11/314—Spot welding guns, e.g. mounted on robots
- B23K11/315—Spot welding guns, e.g. mounted on robots with one electrode moving on a linear path
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
- F15B11/036—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of servomotors having a plurality of working chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
- F15B11/036—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of servomotors having a plurality of working chambers
- F15B11/0365—Tandem constructions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
- F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
- F15B11/121—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/225—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke with valve stems operated by contact with the piston end face or with the cylinder wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5153—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a directional control valve
- F15B2211/5154—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a directional control valve being connected to multiple ports of an output member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7055—Linear output members having more than two chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/76—Control of force or torque of the output member
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Robotics (AREA)
- Actuator (AREA)
- Resistance Welding (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
18 空気シリンダ 20 ロッド 22 圧縮空気源
26 シリンダ本体 28 前ブロック 32 端部キャップ
34 胴 40 引込ピストン組立体 42 前方フランジ
44 後方フランジ 50 窪み 52 第1室 54 第2室
70 緩衝室 73 予オリフィス 74 通路 75 ノッチ 78 緩衝弁 80 分離体
Claims (12)
- ホーム位置、中間位置および加工位置を提供するロッドを支持するシリンダ本体(26)と、
シリンダ本体内に配置されて、該シリンダ本体内の引込側に第1室(52)を、該シリンダ本体内の前進側に第2室(54)を夫々区画すると共に、引込戻り位置と引込−前進位置との間で運動できる引込ピストン組立体と、
引込ピストン組立体内に配置されて溶接戻り位置と溶接前進位置との間で運動できる溶接フランジとを有する溶接シリンダ(18)において、
該溶接フランジは前記ロッドを支持すると共に該引込ピストン組立体内の該溶接フランジ前進側に緩衝室(70)を形成し、
該溶接シリンダの引込戻り位置、溶接戻り位置、引込−前進位置および溶接前進位置を提供するために、選択的に加圧又は通気される引込戻りポート(P4)、溶接戻りポート(P2)、引込−前進ポート(P3)および溶接前進ポート(P1)を有し、
ここで、該ロッドの前記ホーム位置は該溶接シリンダの引込戻り位置に対応し、該ロッドの前記中間位置は該溶接シリンダの引込−前進位置と溶接戻り位置に対応し、該ロッドの加工位置は、該溶接シリンダの溶接前進位置に対応し、
該緩衝室の圧力と該引込―前進ポート(P3)の圧力に露呈され、弁の開放位置と閉鎖位置の間で作動し、前記中間位置と加工位置の間の一位置において該引込―前進ポート(P3)の圧力が上昇すると開放位置となり、溶接戻りポート(P2)と引込−前進ポート(P3)を流体的に連通させ溶接力を急速に形成させる差圧弁(78)と
中間位置において、加工位置へ滑らかに移行するように前記緩衝室(70)から少量の空気を排出する予オリフィスと、
該緩衝室を排気して、該ロッドをさらに加工位置に進めるために、該中間位置において開き、前記緩衝室(70)と前記溶接戻りポート(P2)との通路を作る分離体(80)、及び
該加工位置において、該分離体(80)と係合し、前記緩衝室(70)を前記溶接戻りポート(P2)と連通させる該緩衝室を充填して該ロッドを中間位置に戻すトリップ弁(98)と
を含む前記溶接シリンダ。 - シリンダ本体は前ブロック(28)と端部キャップ(32)との間で支持される胴(34)を含み、引込ピストン組立体(40)は前方フランジ(42)と、後方フランジ(44)と、それら両フランジの間に配置される第2胴と、該前方フランジおよび該後方フランジとの間に配置された溶接フランジとを含み、該胴と該第2胴との間に環状空間(77)が配置される請求項1に記載の溶接シリンダ。
- 前方フランジはノッチ(75)を含み、後方フランジは通路(74)を含み、前記環状空間により該ノッチ(75)と該通路は引込−前進ポートと流体接続する請求項2に記載の溶接シリンダ。
- 前記後方フランジ(44)と前記胴との間にシール(76)が配置される請求項3に記載の溶接シリンダ。
- 前記通路は、開放位置に差圧弁を作動するために、加工位置での差圧弁に加圧流体を提供する請求項3に記載の溶接シリンダ。
- 閉鎖位置から開放位置への作動に抗するために差圧弁とばねが協働する請求項5に記載の溶接シリンダ。
- 前記緩衝室は、中間位置の前において第1速度で排気され、加工位置では第2速度で排気され、第2速度は第1速度より大きい請求項5に記載の溶接シリンダ。
- ホーム位置と、中間位置および加工位置の間で移動するロッド(20)と、
該ロッドを支持するシリンダ本体(26)と
該シリンダ本体内において引込戻り位置と溶接前進位置との間で可動な引込ピストン組立体(40)と、
前記ロッドに固定されると共に該引込ピストン組立体内に可動に配置された溶接フランジ(64)と、
該引込ピストン組立体と該溶接フランジに気圧を加え又は排気するための溶接戻りポート(P2)と溶接前進ポート(P1)と
該ロッドに支持された溶接銃とを有する溶接シリンダ(18)により前記溶接銃を、溶接戻り位置と溶接前進位置との間で動かせる溶接方法であって、
前記方法は、a)該ロッドを加工位置から中間位置に戻すようにトリップ弁を開いて該溶接フランジの前進側の緩衝室(70)を充填するステップと、b)差圧弁が閉鎖位置にある間に予オリフィスを通して緩衝室から少量の流体を排出するステップと、c)中間位置において、通路を作るために差圧弁が閉鎖位置にある間、分離体と該トリップ弁を係合させて該分離体とトリップ弁を開放し、前記通路を通して緩衝室から流体を排出するステップと、d)緩衝室から流体を急速に排出するために差圧弁を開放するステップとから成る前記溶接方法。 - ステップa)は、トリップ弁を開放することにより前記溶接戻りポートを緩衝室に流体的に接続することを含む請求項8に記載の方法。
- ステップa)は、トリップ弁を開放するために前記分離体をトリップ弁に係合することを含む請求項9に記載の方法。
- ステップd)は、緩衝室を排出する間、引込前進圧力を増加することにより行われる請求項8に記載の方法。
- 差圧弁および前記分離体はステップb)を行う前にばねで閉鎖位置へ偏倚される請求項8に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US63508604P | 2004-12-10 | 2004-12-10 | |
US60/635,086 | 2004-12-10 | ||
PCT/CA2005/001239 WO2006060891A1 (en) | 2004-12-10 | 2005-08-11 | Low impact spot welding cylinder using single or double piston |
Related Child Applications (1)
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JP2011082771A Division JP5409687B2 (ja) | 2004-12-10 | 2011-04-04 | 単一ピストンまたは2重ピストンを使用する低衝撃スポット溶接シリンダ |
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JP2008522825A JP2008522825A (ja) | 2008-07-03 |
JP4891915B2 true JP4891915B2 (ja) | 2012-03-07 |
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JP2007544703A Expired - Fee Related JP4891915B2 (ja) | 2004-12-10 | 2005-08-11 | 単一ピストンまたは2重ピストンを使用する低衝撃スポット溶接シリンダ |
JP2011082771A Expired - Fee Related JP5409687B2 (ja) | 2004-12-10 | 2011-04-04 | 単一ピストンまたは2重ピストンを使用する低衝撃スポット溶接シリンダ |
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JP2011082771A Expired - Fee Related JP5409687B2 (ja) | 2004-12-10 | 2011-04-04 | 単一ピストンまたは2重ピストンを使用する低衝撃スポット溶接シリンダ |
Country Status (7)
Country | Link |
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US (3) | US8629369B2 (ja) |
EP (1) | EP1819474B1 (ja) |
JP (2) | JP4891915B2 (ja) |
CN (1) | CN100531995C (ja) |
CA (1) | CA2587596C (ja) |
ES (1) | ES2464784T3 (ja) |
WO (1) | WO2006060891A1 (ja) |
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US6408740B1 (en) * | 2000-12-04 | 2002-06-25 | Welker Bearing Company | Three position cylinder |
ITTO20020786A1 (it) | 2002-09-10 | 2004-03-11 | Gerbi & Fase S P A | Cilindro attuatore a doppia corsa, particolarmente per |
US7223933B2 (en) * | 2004-01-21 | 2007-05-29 | Doben Limited | Low impact spot welding cylinder with single piston |
CN100531995C (zh) * | 2004-12-10 | 2009-08-26 | 多宾有限公司 | 焊接气缸和焊接方法 |
US7214902B2 (en) * | 2004-12-13 | 2007-05-08 | Doben Limited | Low impact spot welding cylinder with dual pistons |
-
2005
- 2005-08-11 CN CNB2005800396455A patent/CN100531995C/zh not_active Expired - Fee Related
- 2005-08-11 CA CA2587596A patent/CA2587596C/en active Active
- 2005-08-11 WO PCT/CA2005/001239 patent/WO2006060891A1/en active Application Filing
- 2005-08-11 ES ES05772221.7T patent/ES2464784T3/es active Active
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- 2005-08-11 JP JP2007544703A patent/JP4891915B2/ja not_active Expired - Fee Related
- 2005-08-11 US US12/676,784 patent/US8629369B2/en active Active
- 2005-12-09 US US11/297,915 patent/US7718916B2/en active Active
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Also Published As
Publication number | Publication date |
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US20100213246A1 (en) | 2010-08-26 |
CN101060953A (zh) | 2007-10-24 |
WO2006060891A1 (en) | 2006-06-15 |
JP2008522825A (ja) | 2008-07-03 |
US7714247B2 (en) | 2010-05-11 |
US20060124606A1 (en) | 2006-06-15 |
JP5409687B2 (ja) | 2014-02-05 |
US7718916B2 (en) | 2010-05-18 |
EP1819474A1 (en) | 2007-08-22 |
CN100531995C (zh) | 2009-08-26 |
US20060124607A1 (en) | 2006-06-15 |
US8629369B2 (en) | 2014-01-14 |
EP1819474A4 (en) | 2008-11-19 |
CA2587596A1 (en) | 2006-06-15 |
CA2587596C (en) | 2015-12-29 |
EP1819474B1 (en) | 2014-02-26 |
ES2464784T3 (es) | 2014-06-04 |
JP2011167767A (ja) | 2011-09-01 |
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