Nippei Toyama Corporation

Komatsu Ntc Ltd.

Yukio Kawasaki

Shiro Murai

Akira Takase

Hisao Sasaki

Akira Tanizaki

Yasuo Hasegawa

Fumihiro Kamikonya

Teruhiro Nishizaki

Kinya Nakamura

A machine tool including a base frame, a workpiece table, a machining unit, and a connection portion is disclosed. The base frame has a machining area. The base frame includes two left and right side frames and a connection frame connecting the two side frames. The workpiece table is arranged on the base frame in the machining area. The machining unit is arranged on an upper portion of the base frame and includes a spindle device. A connection portion connects the machining unit and the base frame in a detachable manner.

Machine tool

In a state of separating a front end face of an air injecting nozzlefrom a worked work W by a predetermined interval h, the air injecting nozzleis moved at a constant speed in an X axis direction, injects air from an injecting holeof a nozzle main bodyand is moved to pass centers OOof worked holes Wb, Wc of the work W. A variation in a pressure is measured by a pressure measuring unitX axis coordinates of the centers OOof the holes Wb, Wc, a hole diameter E and a center interval distance Dare calculated based on coordinates of center points TTof inclined portions Ld, Lu of a curve Lx of the pressure relative to the measured X axis coordinate.

Surface shape determining device for a machining apparatus and surface shape determining method

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Nanto, Japan

Yukio Kawasaki