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1. 发明授权

US5560842A Spot welding apparatus and its power supplying method 失效
标题翻译：点焊装置及其供电方式
公开(公告)号：US5560842A
公开(公告)日：1996-10-01
申请号：US448107
申请日：1995-05-23
申请人： Shinichi Kitaguchi , Shigeo Tsuyuki
发明人： Shinichi Kitaguchi , Shigeo Tsuyuki
IPC分类号： B23K11/11 , B23K11/24
CPC分类号： B23K11/243
摘要： A spot welder apparatus includes: a single welding power source (5); a welding current distributor (7) connected to the single welding power source; and a plurality of spot welders (1A, 1B, 1C) connected to the welding current distributor. Each of a plurality of the spot welders is activated alternately by welding current distributed by the welding current distributor. When two start signals are generated almost simultaneously, a first spot welder which generates the start signal earlier is activated, and a second spot welder which generates the start signal later is kept under pressurized condition. Immediately after the first spot welder is deactivated, the second spot welder is then activated. The spot welder apparatus is low in cost and small in installation space, without increasing the user' current capacity.
摘要翻译：点焊设备包括：单个焊接电源（5）; 连接到单个焊接电源的焊接电流分配器（7）; 以及连接到焊接电流分配器的多个点焊机（1A，1B，1C）。多个点焊机中的每一个由焊接电流分配器分布的焊接电流交替激活。当几乎同时产生两个启动信号时，激活早期产生起动信号的第一点焊机，并且稍后产生起动信号的第二点焊机被保持在加压状态。在第一个点焊机停用后，立即激活第二个点焊机。点焊机成本低，安装空间小，不增加用户现有能力。

2. 发明授权

US5831234A Spot welding machine 失效
标题翻译：点焊机
公开(公告)号：US5831234A
公开(公告)日：1998-11-03
申请号：US895454
申请日：1997-07-16
申请人： Yoshio Nakamura , Shigenobu Arima , Shinichi Kitaguchi
发明人： Yoshio Nakamura , Shigenobu Arima , Shinichi Kitaguchi
IPC分类号： B23K11/24 , B23K11/11 , B23K11/31 , B23K11/10
CPC分类号： B23K11/317 , B23K11/318
摘要： In opposition to a lower electrode (31) fixed to a frame (3), an upper electrode (29) is carried by an upper pressing base (23), which is engaged with a vertical guide rail (25) and joined by a resilient slide mechanism to a piston rod (35L) of a hydraulic cylinder (35) connected to a hydraulic circuit operable for an increased distance (L3) between electrode shanks (15, 7) and fastened at a head end thereof to a lower pressing base (33), which is engaged with the guide rail and joined to a piston rod (37L) of an air cylinder (37) fastened at a head end thereof to the frame and connected to a pneumatic circuit operable for supplying a balancing pressure to have the piston rod (37L) thereof contracted to stand with a total load and for relieving the pressure when a mechanical valve (85) is operated with a pedal arm (49) stepped down for starting a welding, while the pneumatic circuit is changed over by a limit switch (57) to force down the lower pressing base.
摘要翻译：与固定于框架（3）的下部电极（31）相对，上部电极（29）由与上述垂直导轨（25）卡合的上部按压基座（23）承载，滑动机构连接到连接到液压回路的液压缸（35）的活塞杆（35L），液压回路可操作以在电极杆（15,7）之间增加距离（L3），并将其头端紧固到下压制基座 33），其与导轨接合并且连接到气缸（37）的活塞杆（37L），气缸（37）的头端紧固在框架上并连接到气动回路，气动回路可用于提供平衡压力以使活塞杆（37L）以总负载收缩而放置，当机械阀（85）在踏板臂（49）下降以启动焊接的情况下操作时减轻压力，同时气动回路由限位开关（57）迫使下压底座。

3. 发明授权

US5530218A Spot welding apparatus 失效
标题翻译：点焊设备
公开(公告)号：US5530218A
公开(公告)日：1996-06-25
申请号：US374234
申请日：1995-01-18
申请人： Yoshio Nakamura , Shinichi Kitaguchi , Yoshihiko Yamaguchi
发明人： Yoshio Nakamura , Shinichi Kitaguchi , Yoshihiko Yamaguchi
IPC分类号： B23K11/31 , B23K37/02
CPC分类号： B23K11/314
摘要： In a spot welding apparatus in which a column (7) is stood on a base (5) provided with a worktable (3) for supporting work (W); and a welding arm (15) having an electrode (13) at a free end portion thereof is pivotally supported up and down at a lower portion of a support cylinder (11) hung from a support beam (9) supported by the column (7) horizontally, the spot welding apparatus comprises an arm supporting section (47) for supporting support members (49, 55, 53, 57) for pivotally supporting the welding arm (15), so as to be movable up and down relative to the support cylinder (11) and further urged upward; and an arm pressing section (37) for pressing a free end portion of the welding arm (15) downward against an urging force of the arm supporting section.
摘要翻译：在立柱（7）位于设置有用于支撑工件（W）的工作台（3）的基座（5）上的点焊装置中; 并且在其自由端部分具有电极（13）的焊接臂（15）在从支柱（7）支撑的支撑梁（9）悬挂的支撑筒（11）的下部处被上下可枢转地支撑），所述点焊装置包括用于支撑用于枢转地支撑所述焊接臂（15）的支撑构件（49,55,53,57）的臂支撑部（47），以便能够相对于所述支撑件上下移动气缸（11）并进一步向上推动; 以及用于将所述焊接臂（15）的自由端部抵抗所述臂支撑部的作用力向下方向下压的臂按压部（37）。

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