Yamazaki Machinery Works, Ltd.

Hiroyuki Kanematsu

Akimitsu Nagae

Shinji Sano

Yuji Sano

Kiyohisa Mizoguchi

Hajime Ohashi

Koji Matsumoto

Kazuki Uemura

A tool or a workpiece is fed by the cut feed by cut feed commands during periods when the tool or the workpiece would normally be fed by rapid feed. These periods are chosen to occur when the distance of the sections to be fed is a predetermined distance or less. Then, in the case that the feeding distance is the predetermined distance or less, the tool or the workpiece can be fed more rapidly by cut feed rather than rapid feed. Thus, machining time is shortened to that extent.

Feed control method in a numerically controlled machine tool

A method of judging and controlling simultaneous machining in a quadriaxial numerical control lathe having two tool rests. A machining pattern pair memory stores a pair table showing possibility of simultaneous execution of different machining patterns. A judgement is made as to whether a simultaneous execution of two machining processes in accordance with input machining informations is possible, through a retrieval of the table in the machining pattern pair memory, and machining programs for two tool rests are formed through an automatic judging concerning the possibility of simultaneous machining to relieve the programmer from the work for making such a decision.

Method of judging and controlling simultaneous machining in a

Disclosed herein is a method of controlling a numerically controlled machine tool comprising the steps of classifying cutting tools and machining order for the respective machining patterns determined in response to the final machining contour of a workpiece machined by a numerically controlled machine tool like a machining center, for example in case of the final machining contour with a counter bore and a tap, the cutting tools and machining order of centering--drilling--end milling for a counter bore and centering--drilling--tapping for a tap, by the unit of machining patterns; storing the classification in the numerically controlled machine tool; reading, during machining of the workpiece, a unit of machining patterns corresponding to the machining contour of the workpiece on a display unit; machining the workpiece with numerical information as to each machining patterns entered in the numerically controlled machine tool; and displaying the machining process conditions on the display unit.

Methods of entering machining information and display therefor in a

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Konan, Japan

Hiroyuki Kanematsu