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公开(公告)号：US5989114A
公开(公告)日：1999-11-23
申请号：US955356
申请日：1997-10-21
摘要： A unitary composite abrasive disc for one-pass grinding and finishing of a workpiece comprising a flexible epoxy rim bonded to a rigid core.
摘要翻译： 用于工件的单程磨削和精加工的整体复合砂轮，包括粘结到刚性芯的柔性环氧树脂边缘。
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公开(公告)号：US5975995A
公开(公告)日：1999-11-02
申请号：US881913
申请日：1997-06-25
CPC分类号： B24B49/00 , B24B19/12 , B24B27/0076
摘要： A pair of grinding wheel carriages, each carrying its own grinding wheel, are both carried by a grinding machine to one side of a work carriage and workpiece when carried thereby. The workpiece is, in this instance, a camshaft with multiple pairs of similar cams disposed along the axis of the workpiece. The operation control and disposition of the grinding wheels provides for use of either grinding wheel to grind cam pairs or both grinding wheels to simultaneously grind a pair of cam pairs. The method involves first grinding a first cam pair of spaced but in phase cams with one of the grinding wheels; thereafter utilizing both grinding wheels simultaneously to grind two pairs of spaced cam pairs and repeating this step depending upon the number of cam pairs, lastly the final pair of cam pairs is ground utilizing the other grinding wheel. Workspeed for the camshaft is varied depending upon the cam region being ground and to accommodate grinding two cam pairs where the phase angle of one cam pair differs from the phase angle of the other cam pair.
摘要翻译： 每个承载着自己的砂轮的一对砂轮支架都由研磨机承载在工件托架和工件的一侧上。 在这种情况下，工件具有沿着工件的轴线设置的多对相似凸轮的凸轮轴。 砂轮的操作控制和配置提供了使用砂轮来研磨凸轮对或两个砂轮以同时研磨一对凸轮对。 该方法包括首先研磨具有一个磨轮的间隔但同相凸轮的第一凸轮对; 此后利用两个砂轮同时研磨两对间隔的凸轮对，并根据凸轮对的数量重复该步骤，最后一对凸轮对用另一个砂轮进行研磨。 凸轮轴的工作速度根据被研磨的凸轮区域而变化，并且适于磨削两个凸轮对，其中一个凸轮对的相位角与另一个凸轮对的相位角不同。
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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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公开(公告)号：US5875678A
公开(公告)日：1999-03-02
申请号：US890068
申请日：1997-07-09
申请人： Jeffrey S. McNamara
发明人： Jeffrey S. McNamara
CPC分类号： B25J19/0091 , B23K11/314 , B25J9/02 , Y10T74/18944 , Y10T74/18952 , Y10T74/2063
摘要： A device with a pivoting work arm for carrying and positioning a tool which is moved by a modified Watts linkage powered by a linear actuator is provided with shock absorption adjacent both the fully extended and fully retracted work arm positions. The modified Watts linkage engages a pawl which rotates a lever arm in the same direction to actuate the same shock absorber(s) when the work arm is moved to both its fully extended and fully retracted positions.
摘要翻译： 具有枢转工作臂的装置用于承载和定位由线性致动器驱动的改变的瓦特连接件移动的工具，其具有与完全伸出和完全缩回的工作臂位置相邻的减震。 改进的瓦特连接件接合棘爪，当棘爪移动到其完全伸出和完全缩回的位置时，棘爪使杠杆臂沿相同的方向旋转以驱动相同的减震器。
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