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1. 发明公开

EP0899087A2 Mechanical press with cam drive 审中-公开
标题翻译： Mechanische Presse mit Nockenantrieb
公开(公告)号：EP0899087A2
公开(公告)日：1999-03-03
申请号：EP98306513.7
申请日：1998-08-14
申请人： Unova IP Corp.
发明人： Sloat, Gerrit W. , Brown, Gerald A. , Pagels, Donald D. , Cai, Wenjia , Faitel, William M.
IPC分类号： B30B1/06
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压头的凸轮和从动组件。连杆系统具有一对枢轴连杆，其一端枢转地连接到固定的枢转轴，该固定枢转轴连接到压力机架上，并且在它们的相对端连接到从动螺母，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，以将压头移动到其前进位置，其中，该压头迫使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，以将模具或工具与工件脱离。

2. 发明公开

EP1177992A1 Ratcheting drive for conveyors 审中-公开
标题翻译： RatschenantriebfürFörderer
公开(公告)号：EP1177992A1
公开(公告)日：2002-02-06
申请号：EP01306023.1
申请日：2001-07-12
申请人： Unova IP Corp.
发明人： McNamara, Jason A. , Brown, Gerald A.
IPC分类号： B65G23/40 , F16D41/12
CPC分类号： F16D41/12 , B65G23/40
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。棘轮执行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着第二位置移动时，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。棘爪接合构件被支撑在框架上，并且当第一棘轮臂处于第二位置时，棘爪接合构件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制动器接合构件脱离啮合。

3. 发明公开

EP1023970A1 Pneumatic clamp 审中-公开
标题翻译： PneumatischbetätigbaresSpanneisen
公开(公告)号：EP1023970A1
公开(公告)日：2000-08-02
申请号：EP00300088.2
申请日：2000-01-07
申请人： Unova IP Corp.
发明人： Brown, Gerald A. , McNamara, Jeffrey S. , Pagels, Donald D.
IPC分类号： B25B5/08 , B25B1/08 , B23K37/04 , B23Q3/06
CPC分类号： B23K37/0435 , B25B5/04 , B25B5/087
摘要： A clamp (10) having a pneumatic cylinder (28) with an actuating rod (30) connected to one end of a drive arm (32) which has its other end attached to a crankshaft (19) which in turn has crankpins (20,22) eccentrically mounted thereon to drive inner and outer clamp arms (24,26) between retracted and advanced positions corresponding to open and closed positions of the clamp. The length of the drive arm (32), the extent to which the crankpins (20,22) are offset from the crankshaft (19), 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 (28).
摘要翻译：具有气动缸（28）的夹具（10）具有连接到驱动臂（32）的一端的致动杆（30），其另一端连接到曲轴（19），曲轴（19）又具有曲柄销（20， 22），其偏心地安装在其上以在对应于夹具的打开和关闭位置的缩回位置和前进位置之间驱动内部和外部夹紧臂（24,26）。驱动臂（32）的长度，曲柄销（20,22）从曲轴（19）偏移的程度，曲柄销旋转通过的象限的特定部分，以及应用夹紧臂和夹紧臂枢转的所有轴的力提供了显着的机械优点和来自供应到气动缸（28）的相对低压的压缩空气的非常大的夹紧力。

4. 发明公开

EP0899087A3 Mechanical press with cam drive 审中-公开
标题翻译：机械压力机凸轮驱动
公开(公告)号：EP0899087A3
公开(公告)日：1999-05-19
申请号：EP98306513.7
申请日：1998-08-14
申请人： Unova IP Corp.
发明人： Sloat, Gerrit W. , Brown, Gerald A. , Pagels, Donald D. , Cai, Wenjia , Faitel, William M.
IPC分类号： B30B1/06
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.

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