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公开(公告)号:US5365211A
公开(公告)日:1994-11-15
申请号:US996765
申请日:1992-12-18
CPC分类号: H01F7/202 , Y10T83/293
摘要: A magneto repulsion electrical tape wound coil has been developed with improved current distribution and improved heat transfer. The coil is easy and is expensive to manufacture and simple to mount. The coil comprises a conductive strip (e.g., a copper strip) with rectangular openings stamped in it with a standard metal stamp. The single row of openings are at regular intervals and arranged so that the width of the openings and the spacing of the openings is such that when the coil is wound there is an overlap of the openings, forming radial passages extending from the outer periphery of the coil to its central core electrode. Cooling fluid may be supplied from a hollow inner electrode so that the cooling fluid flows radially, outwardly. Since the openings overlap to form radial passages, a cross-flow path for the cooling fluid may be established where fluid enters the passages on one side of the coil and exits from the other side of the coil.
摘要翻译: 已经开发出具有改进的电流分布和改善的热传递的磁阻斥电缠绕线圈。 线圈容易,制造成本高,安装简单。 线圈包括具有标有金属印章的矩形开口的导电条(例如铜条)。 单排开口是规则的间隔并且布置成使得开口的宽度和开口的间隔使得当线圈被卷绕时存在开口的重叠,从而形成径向通道,该径向通道从 线圈到其中心芯电极。 冷却流体可以从中空的内部电极供应,使得冷却流体径向向外流动。 由于开口重叠以形成径向通道,所以可以建立用于冷却流体的横流通道,其中流体进入线圈一侧的通道并从线圈的另一侧离开。
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公开(公告)号:US5410233A
公开(公告)日:1995-04-25
申请号:US227863
申请日:1994-04-14
申请人: William D. Carbaugh, Jr. , Mark J. LaPlante , David C. Long , Karl F. Stroms , Christopher D. Setzer
发明人: William D. Carbaugh, Jr. , Mark J. LaPlante , David C. Long , Karl F. Stroms , Christopher D. Setzer
IPC分类号: B21D28/00 , B26D5/08 , B26F1/02 , B30B1/42 , G05D19/02 , H02K33/02 , H05K1/03 , H05K3/00 , H05K3/04 , G05B5/01
CPC分类号: B26D5/086 , B21D28/002 , B26D5/08 , B30B1/42 , G05D19/02 , H02K33/02 , H05K3/005 , B26F2210/08 , H05K1/0306 , H05K2203/104 , Y10T83/0481 , Y10T83/8765
摘要: Dimpling of a workpiece by rebounding of a magnetic repulsion punch mechanism, when operated at high punching rates, is avoided by application of a damping pulse at a point at or subsequent to a mid-point of a return stroke of the punch from the workpiece and preferably within the last 10% of the return stroke. This damping pulse is preferably a fraction of the pulse width and of approximately the same amplitude as a driving pulse applying kinetic energy to the punch for causing punching of the workpiece. At high punching rates the kinetic energy of the return portion of a punching stroke is substantially determined by elastic rebounding of the punch from a guide bushing. The removal of kinetic energy during the return portion of the stroke allows the return of the punch to a position close to a rest position during a very short interval with small overshoot under control of mechanical damping. Since dynamic damping may be substituted for much of the mechanical damping in the punching arrangement, high quality punching may be accomplished at much increased punching rates. A preferred form of monitoring punch position employs RF reflected inductance and may be used to form a time expanded image of punch movement.
摘要翻译: 通过在高冲压速度下操作时通过弹性冲击机构的回弹来对工件进行刨削,通过在来自工件的冲头的返回行程的中点处或之后的点处施加阻尼脉冲来避免, 最好在返程行程的最后10%内。 该阻尼脉冲优选地是脉冲宽度的一小部分,并且与向冲头施加动能以对工件进行冲压的驱动脉冲大致相同的幅度。 在高冲击速率下,冲压行程的返回部分的动能基本上由冲头从导向衬套的弹性回弹确定。 在行程返回部分期间移动动能允许在非常短的间隔期间将冲头返回到靠近静止位置的位置,在机械阻尼的控制下具有小的过冲。 由于动态阻尼可以代替冲孔装置中的大部分机械阻尼,所以可以以更高的冲压速率实现高质量的冲压。 监测冲击位置的优选形式使用RF反射电感,并且可以用于形成打孔移动的时间扩展图像。
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公开(公告)号:US4821614A
公开(公告)日:1989-04-18
申请号:US140971
申请日:1988-01-06
申请人: Russell W. Fleet , David C. Long , Karl F. Stroms , Gerhard Weiss
发明人: Russell W. Fleet , David C. Long , Karl F. Stroms , Gerhard Weiss
CPC分类号: B26D5/086 , B21D28/002 , B26D5/08 , B26D7/015 , B26F1/04 , H05K3/005 , B26F2210/08 , H05K1/0306 , H05K2203/104 , Y10T83/207 , Y10T83/533 , Y10T83/536 , Y10T83/543 , Y10T83/6472 , Y10T83/654 , Y10T83/8726 , Y10T83/8732 , Y10T83/8765 , Y10T83/8785
摘要: A punch apparatus for punching holes in thin sheet material including a frame, a punch element mounted on the frame for rectilinear movement, which further includes a planar element of conductive material mounted on the punch element, a coil on the frame mounted adjacent to the planar element, a carriage for supporting and positioning the sheet in the path of the punch element, leads connected to a source of electric current to energize the coil, a mechanical arrangement to rebound the punch element, and a programmable apparatus to selectively move the carriage and energize the coil to thereby produce a punched hole pattern in the sheet.
摘要翻译: 一种用于在薄片材料中冲孔的冲压装置,包括框架,安装在用于直线运动的框架上的冲头元件,还包括安装在冲压元件上的导电材料的平面元件,框架上的线圈,邻近平面 元件,用于将片材支撑并定位在冲头元件的路径中的托架,引线连接到电流源以激励线圈,机械布置以使冲压元件反弹;以及可编程设备,用于选择性地移动托架和 对线圈通电,从而在片材中产生穿孔图案。
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公开(公告)号:US4872381A
公开(公告)日:1989-10-10
申请号:US218186
申请日:1988-07-13
申请人: Karl F. Stroms
发明人: Karl F. Stroms
CPC分类号: B26D5/086 , B21D31/02 , B26D5/08 , B26D7/01 , B26F1/04 , B30B1/42 , H05K3/005 , B26F2210/08 , H05K1/0306 , H05K2203/104 , Y10T83/162 , Y10T83/263 , Y10T83/293 , Y10T83/533 , Y10T83/536 , Y10T83/8732 , Y10T83/8765
摘要: A punch apparatus for punching hole patterns in thin sheet material. The apparatus includes a housing having a liquid-cooled cavity therein; a coil mounted in the liquid-cooled cavity; a driver disk made of a highly conductive material mounted in the liquid-cooled cavity, the driver disk mounted adjacent to the coil; a driver button located outside of the liquid-cooled cavity but in communication with the driver disk; and a punch element for perforating thin sheet material aligned with the driver button. Finally, the apparatus includes an electrical source for energizing the coil with a pulse of electrical energy for generating flux linking the driver disk and the coil to repel the driver disk from the coil, thereby translating the driver button and the punch element, causing the punch element to perforate a thin sheet of material.
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