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公开(公告)号：EP0569831A2
公开(公告)日：1993-11-18
申请号：EP93107254.0
申请日：1993-05-05
申请人： KABUSHIKI KAISHA SG
CPC分类号： B23K11/253 , B23K11/115 , B23K11/315 , F15B15/262 , F15B15/2861
摘要： A spot welding machine includes tip electrodes (8, 9) mounted on the tips of the first and second arms (4, 5), respectively, a pressing actuator (1) for moving at least one of the first and second arms to apply a pressing force to the tip electrodes, a detector (2) for detecting a distance between the tip electrodes, and a brake (30) for braking the actuator. The distance between the tip electrodes can be set at any desired intermediate distance between the maximum and minimum distances, by braking the actuator when the arms are opened or closed to a desired degree. It is made possible to reduce the required operation time and to lessen an impact caused when the tip electrodes come into contact with plates to be welded. A speed control device may be provided which variably controls the moving speed of the actuator in accordance with the distance. A determining device may be provided, which determines the current distance meets a predetermined reference value.
摘要翻译： 点焊机包括分别安装在第一和第二臂（4,5）的末端上的尖端电极（8,9），用于移动第一和第二臂中的至少一个的施压致动器（1） 对顶端电极施加压力，用于检测顶端电极之间的距离的检测器（2）以及用于制动致动器的制动器（30）。 当臂被打开或关闭到所需程度时，通过制动致动器，尖端电极之间的距离可以设定在最大和最小距离之间的任何期望的中间距离处。 有可能减少所需的操作时间并减少当尖端电极与待焊接板接触时引起的冲击。 可以提供速度控制装置，其根据距离可变地控制致动器的移动速度。 可以提供确定装置，其确定当前距离满足预定参考值。
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2.发明公开Braking apparatus operated via resilient deformation of coned disk springs 失效Durch elastische Verformung von Tellerfedern wirkende Bremse。
公开(公告)号：EP0606864A1
公开(公告)日：1994-07-20
申请号：EP94100224.8
申请日：1994-01-08
申请人： KABUSHIKI KAISHA SG
发明人： Matsuki, Yuji , Hirohashi, Seiji
CPC分类号： F16D1/0841 , F15B15/262
摘要： A braking apparatus performs its braking action by pressing a brake bush (74L,74R) radially inwardly against a rod (22). The brake bush (74L,74R) is pressed via a plurality of coned disk springs (3L,3R;3), each of which has a plurality of outer and inner radial recesses (3a,3b) extending from its outer and inner peripheral edges, respectively. The outer and inner recesses (3a,3b) are arranged in an alternating fashion along the circumference of the spring (3). As a brake piston (69L,69R) moves in the axial direction of the rod (22), the inner peripheral edge of each of the springs (3a,3b) is compressed or deformed radially inwardly. The brake piston (69L,69R) is moved by compressed air supplied from outside. By increasing the radial length of each of the inner radial recesses (3b) of the coned disk springs (3) in such a manner that the radial outward end (3b') of the recess is located far beyond the radial inward end (3a') of each adjacent outer radial recess (3a), it is permitted to provide at least three or more coned disk springs (3) around the brake bush (74L,74R). Thus, abrasion of each coned disk spring (3) can be minimized, and durability of the braking apparatus can be greatly enhanced. Further, by forming each of the coned disk springs (3) so as to have a rectangular sectional shape, it is possible for the braking apparatus to perform a sufficient braking function even when the outer and inner peripheral edges of the coned disk springs (3) have been abraded to a considerable degree.
摘要翻译： 制动装置通过将制动衬套（74L，74R）径向向内压靠在杆（22）上而进行制动。 制动衬套（74L，74R）经由多个盘形弹簧（3L，3R; 3）压紧，每个碟形弹簧具有从其外周边缘和内周边缘延伸的多个外部和内部径向凹部（3a，3b） ， 分别。 外部和内部凹部（3a，3b）沿着弹簧（3）的圆周交替排列。 当制动活塞（69L，69R）在杆（22）的轴向移动时，每个弹簧（3a，3b）的内周边缘被径向向内压缩或变形。 制动活塞（69L，69R）由从外部供应的压缩空气移动。 通过以这样的方式增加锥形盘形弹簧（3）的每个内径向凹槽（3b）的径向长度，使得凹部的径向外端（3b'）远离径向内端（3a'） ），可以在制动衬套（74L，74R）的周围设置至少三个以上的锥形盘簧（3）。 因此，可以使每个碟形弹簧（3）的磨损最小化，并且可以大大提高制动装置的耐久性。 此外，通过将每个碟形弹簧（3）形成为具有矩形截面形状，即使在盘形弹簧（3）的外周边缘和内周边缘上，制动装置也可以执行足够的制动功能 ）已经磨损了很大程度。
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公开(公告)号：EP0606864B1
公开(公告)日：1998-07-22
申请号：EP94100224.8
申请日：1994-01-08
申请人： KABUSHIKI KAISHA SG
发明人： Matsuki, Yuji , Hirohashi, Seiji
CPC分类号： F16D1/0841 , F15B15/262
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公开(公告)号：EP0569831B1
公开(公告)日：1996-08-28
申请号：EP93107254.0
申请日：1993-05-05
申请人： KABUSHIKI KAISHA SG
CPC分类号： B23K11/253 , B23K11/115 , B23K11/315 , F15B15/262 , F15B15/2861
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公开(公告)号：EP0569831A3
公开(公告)日：1994-03-16
申请号：EP93107254.0
申请日：1993-05-05
申请人： KABUSHIKI KAISHA SG
CPC分类号： B23K11/253 , B23K11/115 , B23K11/315 , F15B15/262 , F15B15/2861
摘要： A spot welding machine includes tip electrodes (8, 9) mounted on the tips of the first and second arms (4, 5), respectively, a pressing actuator (1) for moving at least one of the first and second arms to apply a pressing force to the tip electrodes, a detector (2) for detecting a distance between the tip electrodes, and a brake (30) for braking the actuator. The distance between the tip electrodes can be set at any desired intermediate distance between the maximum and minimum distances, by braking the actuator when the arms are opened or closed to a desired degree. It is made possible to reduce the required operation time and to lessen an impact caused when the tip electrodes come into contact with plates to be welded. A speed control device may be provided which variably controls the moving speed of the actuator in accordance with the distance. A determining device may be provided, which determines the current distance meets a predetermined reference value.
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