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1. 发明授权

US4106375A Variable feed high-production precision machine 失效
标题翻译：可变进料高精度精密机
公开(公告)号：US4106375A
公开(公告)日：1978-08-15
申请号：US569543
申请日：1975-04-18
申请人： Felix J. Gurdak , Francis W. Cook, Jr.
发明人： Felix J. Gurdak , Francis W. Cook, Jr.
IPC分类号： B23Q5/28 , B23Q5/34 , B23Q15/22 , G05B19/06 , B23B3/32
CPC分类号： B23Q15/22 , B23Q5/28 , B23Q5/341 , G05B19/066 , Y10T409/302968 , Y10T82/2527 , Y10T82/2535
摘要： A high-production, precision machine tool has means for varying the feed rate of the tool during the actual machining of each workpiece. The means comprise a plurality of program cams disposed on the camshaft of the machine tool for selecting the appropriate feed rate at the desired time during the machining operation. The camshaft is rotated by a permanent magnet D.C. motor, and as the camshaft rotates, the program cams, in turn, trip a plurality of switches to gate one of several predetermined voltage signals representative of the desired motor speeds to a comparator which compares the gated signal with the output of a tachometer measuring the actual motor speed. The difference, a voltage signal representative of the correction to be made to the motor, is applied to a silicon controlled rectifier firing circuit which selectively fires an SCR network, generating a shaped pulse to provide a controlled voltage input to the motor, thereby selectively controlling its speed.
摘要翻译：高精度的精密机床具有在每个工件实际加工期间改变刀具进给速度的装置。该装置包括设置在机床的凸轮轴上的多个程序凸轮，用于在加工操作期间在期望的时间选择合适的进给速率。凸轮轴由永磁直流电动机旋转，并且随着凸轮轴的转动，程序凸轮又将多个开关跳闸到代表期望的电动机速度的若干预定电压信号中的一个到比较器，比较器信号与转速计的输出测量实际电机转速。代表对电动机进行校正的电压信号的差异被施加到选择性地触发SCR网络的可控硅整流器点火电路，产生成形脉冲以向电动机提供受控电压输入，从而选择性地控制它的速度。

2. 发明授权

US4362261A Clamp assembly for a friction welding machine 失效
标题翻译：用于摩擦焊接机的夹紧组件
公开(公告)号：US4362261A
公开(公告)日：1982-12-07
申请号：US188057
申请日：1980-09-17
申请人： Francis W. Cook, Jr.
发明人： Francis W. Cook, Jr.
IPC分类号： B23K20/12 , B23Q3/06
CPC分类号： B23K20/12
摘要： A friction welding machine comprising a clamp assembly for securing a workpiece against rotation including a pair of opposed chuck means for supporting the pair of chuck means for relative horizontal slidable displacement means for controlling the displacement of the pair of opposed chucks so that the pair of chucks will be conjointly and equally displaced means for displacing the pair of chuck means having first and second vertically oriented arms each pivotally secured at a medial location to the supporting means, first and second link means each connected at one end to one of the chuck means for limited pivotal displacement relative thereto, and at the other end pivotally connected to the top of the corresponding arm, and hydraulic cylinder means extending between and pivotally mounted on the bottom of the arms, and a base for supporting the supporting means, the base having opening means for receiving the hydraulic cylinder means.
摘要翻译：一种摩擦焊接机，包括用于固定工件抵抗旋转的夹紧组件，包括一对相对的卡盘装置，用于支撑一对卡盘装置，用于相对水平的可滑动位移装置，用于控制一对相对卡盘的位移，使得该卡盘将相互移动和平移位置的装置用于移动一对卡盘装置，该卡盘装置具有第一和第二垂直定向的臂，每个枢转地固定在中间位置到支撑装置;第一和第二连杆装置，其一端连接到卡盘装置之一，在另一端可枢转地连接到相应臂的顶部，液压缸装置在臂的底部之间延伸并且可枢转地安装在臂的底部，以及用于支撑支撑装置的基座，底座具有开口用于接收液压缸装置的装置。

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