公开(公告)号：US3720120A

公开(公告)日：1973-03-13

申请号：US3720120D

申请日：1970-09-21

申请人： BENDIX CORP

发明人： CUTLER H

IPC分类号： G05B19/416 ,  B23B7/00

CPC分类号： G05B19/4163 ,  Y10T82/2502

摘要： A STORED PROGRAM COMPUTER USES INPUT NUMERICAL INFORMATION TO CONTROL THE PATH OF MOTION OF A LATHE CUTTER RELATIVE TO THE LATHE SPINDLE. THE SYSTEM ALSO CONTROLS THE RATE OF MOTION OF THE CUTTER ALONG ITS PATH AND THE RATE OF ROTATION OF THE SPINDLE IN SUCH A WAY AS TO ATTAIN A PREDETERMINED USEFUL CUTTER LIFE AND A MAXIMUM VOLUME OF METAL REMOVAL BY THE CUTTER DURING THAT LIFE. THE FORCE EXERTED BY THE CUTTER ON THE WORKPIECE IS MEASURED BY A TRANSDUCER TO PRODUCE A SIGNAL WHICH IS OPERATED UPON IN CONNECTION WITH INFORMATION ON THE TAPE TO PRODUCE AN INCHES-PER-REVOLUTION NUMBER. THIS NUMBER IS MULTIPLIED BY A NUMBER DERIVED FROM A SPINDLE SPEED TRANSDUCER TO DEVELOP A FEEDRATE NUMBER TO CONTROL THE RATE OF OPERATION OF INTERPOLATORS WHICH GENERATE CONTROL SIGNALS FOR THE TWO MUTUALLY PERPENDICULAR CUTTER

DRIVE AXES. THE INCHES-PER-REVOLUTION NUMBER IS ALSO OPERATED UPON BY INFORMATION OBTAINED FROM THE TAPE AND A NUMBER PROPORTIONAL TO THE NORMAL DISTANCE BETWEEN THE CUTTER AND THE SPINDLE AXIS TO DEVELOP A DRIVE SIGNAL FOR THE SPINDLE.

公开(公告)号：US3854353A

公开(公告)日：1974-12-17

申请号：US37181373

申请日：1973-06-20

申请人： BENDIX CORP

发明人： CUTLER H

IPC分类号： B23Q15/00 ,  G05B19/4093 ,  G05B19/416 ,  B23B1/00 ,  B23B5/46

CPC分类号： G05B19/4163 ,  G05B2219/45214 ,  Y10T82/10 ,  Y10T82/20 ,  Y10T82/2502

摘要： A method and apparatus for guiding a tool through the series of paths required to produce a thread cut. Data defining the basic parameters of the thread, the finish cut depth and the initial cut depth are read from an active program storage medium, such as a tape reader, along with a preparatory code which specifies a thread cutting operation. The code then calls up a thread cutting routine from a mass memory which is executed in accordance with the data read from tape. After the tool reaches the final dimension coordinates, control over tool displacement is returned to the tape and tape reader.

摘要翻译： 一种用于引导工具穿过产生螺纹切割所需的一系列路径的方法和装置。 从活动程序存储介质（如磁带阅读器）中读取定义线程的基本参数，切削深度和初始切削深度的数据以及指定切线操作的预备代码。 然后，代码从大容量存储器调用根据从磁带读取的数据执行的线程切割程序。 刀具达到最终尺寸坐标后，刀具位移的控制返回到磁带和磁带读取器。

公开(公告)号：US3725651A

公开(公告)日：1973-04-03

申请号：US3725651D

申请日：1970-08-05

申请人： BENDIX CORP

发明人： CUTLER H

IPC分类号： G05B19/18 ,  G06F15/46

CPC分类号： G05B19/186 ,  G05B2219/34041 ,  G05B2219/37345 ,  G05B2219/43141

摘要： A continuous-path numerical system controls the position of the cutter of a lathe with respect to the workpiece and the rate of rotation of the work spindle in accordance with a series of numerical commands encoded on a punched tape. Each command, in addition to position information, includes information relating to the desired rate of movement of the cutter over the workpiece in surface feet per minute and the desired rate of advancement of the cutter in terms of inches per revolution. The commands controlling the position of the cutter with respect to the center line of the spindle are continuously monitored and the quantity representative of the commanded separation is divided into the programmed surface feet-per-minute number to derive a number used to control the spindle motor drive. This system additionally calculates a feedrate number based on the incremental distances of motion along the X and Z axes called for by a particular command and the inches per revolution number. A pulse train generated by a transducer which senses the rate of rotation of the spindle is multiplied by this feedrate number to derive command pulse trains for DDA-type interpolators which generate control signals for the X and Z axes.

摘要翻译： 连续路径数值系统根据编码在穿孔带上的一系列数字命令来控制车床的切割器相对于工件的位置和工作主轴的旋转速度。 除了位置信息之外，每个命令还包括有关切割器在工件上以每分钟表面英尺的运动速度的期望速度以及切割机的每转英寸的期望速度。 控制刀具相对于主轴中心线位置的命令被连续地监视，代表命令间隔的数量被划分成编程表面每分钟数，以导出用于控制主轴电动机的数量 驾驶。 该系统还基于特定命令所需的X轴和Z轴的运动距离和每转英寸数量，计算进给速度数。 由感应主轴旋转速度的传感器产生的脉冲串乘以该进给速度数，以导出产生X轴和Z轴控制信号的DDA型内插器的指令脉冲串。