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公开(公告)号：US6095507A
公开(公告)日：2000-08-01
申请号：US235693
申请日：1999-01-22
CPC分类号： B23K37/0435 , B25B5/04 , B25B5/087
摘要： A clamp having a pneumatic cylinder with an actuating rod connected to one end of a drive arm which has its other end attached to a crankshaft which in turn has crankpins eccentrically mounted thereon to drive inner and outer clamp arms between retracted and advanced positions corresponding to open and closed positions of the clamp. The length of the drive arm, the extent to which the crankpins are offset from the crankshaft, the specific portion of a quadrant through which the crankpins are rotated, and the distance between the application of the force to the clamp arms and the axes about which the clamp arms pivot all provide a significant mechanical advantage and an extremely large clamping force from relatively low pressure compressed air supplied to the pneumatic cylinder.
摘要翻译： 具有气动缸的夹具具有连接到驱动臂的一端的致动杆，该驱动杆的另一端连接到曲轴，该曲轴另外具有偏心地安装在其上的曲柄销，以在对应于打开的收缩位置和前进位置之间驱动内部和外部夹紧臂 和夹具的闭合位置。 驱动臂的长度，曲柄销从曲轴偏移的程度，曲柄销旋转通过的象限的特定部分以及施加到夹紧臂和其周围的轴线之间的距离 夹臂枢轴全部提供了显着的机械优点和从供应到气动缸的相对低压的压缩空气的非常大的夹紧力。
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公开(公告)号：US6164437A
公开(公告)日：2000-12-26
申请号：US270985
申请日：1999-03-17
CPC分类号： F15B11/127 , F16H31/005
摘要： An indexing drive has an actuator which reciprocates a ratchet arm along an arcuate path to cause an indexed rotation of rollers during one direction of movement of the ratchet arm which bear on a follower to produce an associated indexed rotation of the follower which may be communicated with a drive mechanism of apparatus to provide an indexed movement of the apparatus. Desirably, when the follower is not being rotated by the rollers, it is restrained from rotation in either direction to prevent movement of the drive mechanism to which it is connected and hence, to prevent movement of the apparatus associated with the drive mechanism.
摘要翻译： 分度驱动器具有致动器，该致动器沿着弓形路径使棘轮臂往复运动，以在棘轮臂的一个运动方向上引起滚子的转位旋转，该棘轮臂承载在从动件上，以产生跟随器的相关联的转位旋转， 提供装置的索引运动的装置的驱动机构。 期望地，当从动件不被辊旋转时，其被阻止沿任一方向旋转以防止其连接的驱动机构的运动，并且因此防止与驱动机构相关联的装置的移动。
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公开(公告)号：US5457981A
公开(公告)日：1995-10-17
申请号：US190256
申请日：1994-02-01
申请人： Gerald A. Brown , William R. Hartley , Mark P. Jehmlich , Jeffrey S. McNamara , John C. Verzura
发明人： Gerald A. Brown , William R. Hartley , Mark P. Jehmlich , Jeffrey S. McNamara , John C. Verzura
IPC分类号： B21D39/02
CPC分类号： B21D39/021 , Y10T29/53791
摘要： A press with both prehemming and final hemming tools or steels each driven by the same prime mover. Each steel is mounted on a separate carrier driven through separate toggle joints to advance and retract the steels for prehemming and final hemming of an upturned flange along an edge of a steel panel. To facilitate synchronizing the operation of at least two presses, the prime mover may be a screw and servo motor drive assembly.
摘要翻译： 一种压机，同时由同一原动机驱动的预制和最终折边工具或钢。 每个钢安装在单独的托架上，通过单独的肘节接头驱动，以使钢材前进和后退，从而沿着钢板边缘进行预热和最后的折边。 为了便于同步至少两台压机的操作，原动机可以是螺杆和伺服电动机驱动组件。
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公开(公告)号：US06443296B1
公开(公告)日：2002-09-03
申请号：US09628890
申请日：2000-07-31
申请人： Jason A. McNamara , Gerald A. Brown
发明人： Jason A. McNamara , Gerald A. Brown
IPC分类号： B65G2300
摘要： A conveyor ratcheting apparatus for advancing a conveyor in one direction in discrete steps. A ratchet arm is pivotally supported on a frame. A ratchet actuator drives the arm reciprocally between first and second positions. A ratchet wheel is rotatably supported on the frame. Circumferentially spaced teeth are formed around an outer rim of the ratchet wheel. The ratchet arm sequentially engages each of the teeth and causes the ratchet wheel to rotate in one direction each time the ratchet arm engages one of the teeth and moves toward the second position from the first position. The ratchet arm disengages whenever the ratchet arm moves from the second position back toward the first position. A detent engagement member is supported on the frame and is moveable into engagement with one of four stop detents in the ratchet wheel when the first ratchet arm is in the second position. The detent engagement member positively holds the ratchet wheel and allows ratchet wheel rotation out of the second position only after being disengaged. An actuator is operatively connected to the detent engagement member and disengages the detent engagement member in response to ratchet arm movement and before the ratchet wheel is rotated out of the second position.
摘要翻译： 一种输送机棘轮装置，用于在离散步骤中沿一个方向推进输送机。 棘轮臂枢转地支撑在框架上。 棘轮致动器在第一和第二位置之间往复地驱动臂。 棘轮被可旋转地支撑在框架上。 周向间隔开的齿围绕棘轮的外缘形成。 棘轮臂顺序地接合每个齿，并且每当棘轮臂接合其中一个齿并且从第一位置朝向第二位置移动时，使棘轮在一个方向上旋转。 每当棘轮臂从第二位置向后移动到第一位置时，棘轮臂就脱开。 当第一棘轮臂处于第二位置时，棘爪接合构件被支撑在框架上并且可移动地与棘轮中的四个止动棘爪中的一个啮合。 棘爪接合构件正确地保持棘轮，并且允许棘轮旋转脱离第二位置。 致动器可操作地连接到棘爪接合构件，并且响应于棘轮臂运动并且在棘轮旋转到第二位置之前使止动器接合构件脱离。
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公开(公告)号：US5505556A
公开(公告)日：1996-04-09
申请号：US303459
申请日：1994-09-09
申请人： Gerald A. Brown , William M. Faitel
发明人： Gerald A. Brown , William M. Faitel
CPC分类号： B23K11/061 , B23K37/0435 , Y10T403/18 , Y10T403/59 , Y10T403/593 , Y10T403/597
摘要： Clamping mechanism for clamping a plate to a base comprises an arm having a clamp head on one end and a sleeve slidably receiving the arm. The sleeve is mounted for rotation on an axis perpendicular to the arm. A drive is provided to rotate the sleeve from a first position to a second position in which the arm is disposed with its head in position to clamp the plate to the base and to slide the arm through the sleeve when the sleeve is in the second position to draw the head tightly against the plate and clamp it to the base.
摘要翻译： 用于将板夹紧到底座的夹持机构包括：臂，其一端具有夹头，可滑动地容纳臂。 套筒安装成在垂直于臂的轴上旋转。 提供驱动器以将套筒从第一位置旋转到第二位置，在该第二位置中，臂被布置成使其头部位于适当位置，以将夹板夹紧到基部并且当套筒处于第二位置时将臂滑动通过套筒 将头部紧紧地压在板上并将其夹紧到基座上。
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公开(公告)号：US5735161A
公开(公告)日：1998-04-07
申请号：US789753
申请日：1997-01-28
CPC分类号： B21D19/08
摘要： Apparatus for forming a panel to a predetermined cross dimension by flangers which form flanges on the opposite side edges of the panel. The flangers are movable toward and away from advanced positions in which to form the flanges. The advanced positions can be adjusted depending on the cross dimension desired. The flangers can be retracted to permit loading and unloading of panels. Forming units are also provided to form tabs on an end of the panel.
摘要翻译： 用于通过在所述面板的相对侧边缘上形成凸缘的法兰将板形成预定横截面的装置。 引导件可以朝向和远离形成凸缘的前进位置移动。 可以根据所需的交叉尺寸来调整高级位置。 法兰可以收回以允许装载和卸载面板。 还提供成形单元以在面板的端部上形成凸片。
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公开(公告)号：US5947018A
公开(公告)日：1999-09-07
申请号：US918246
申请日：1997-08-25
CPC分类号： B30B1/06
摘要： A mechanical press has a ram carried by a frame and movable to advanced and retracted positions by a ball screw assembly driven by a reversible motor to actuate a cam and follower assembly connected to the ram by a linkage system. The linkage system has a pair of pivot links pivotally connected at one end to a fixed pivot shaft connected to the press frame and connected at their opposite end to a follower nut for movement thereby as the follower nut travels along the length of the driven screw. A pair of roller followers are also driven by the follower nut to move between first and second positions within cam tracks formed in a pair of first lever arms operably connected to the ram. In use, when the motor drives the screw in one direction the first lever arms are rotated in one direction to move the ram to its advanced position wherein the ram urges a die or tool into engagement with a workpiece. When the motor is reversed, the first lever arm is rotated in the opposite direction to move the ram to its retracted position to disengage the die or tool from the workpiece.
摘要翻译： 机械压力机具有由框架承载的柱塞，并且可通过由可逆电动机驱动的滚珠丝杠组件移动到高级和缩回位置，以通过连杆系统致动连接到冲头的凸轮和从动组件。 连杆系统具有一对枢转连杆，其一端枢转地连接到连接到压力机架的固定枢轴，并且在其相对端处连接到从动螺母，从而随着从动螺母沿着从动螺杆的长度行进。 一对辊跟随器也由从动螺母驱动，以在可操作地连接到压头的一对第一杠杆臂中形成的凸轮轨道内的第一和第二位置之间移动。 在使用中，当电动机沿一个方向驱动螺杆时，第一杠杆臂沿一个方向旋转，以将该压头移动到其前进位置，其中该压头推动模具或工具与工件接合。 当电动机反转时，第一杠杆臂沿相反方向旋转，以将压头移动到其缩回位置，以使模具或工具与工件脱离。
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