Toyoda Koki Kabushiki Kaisha

Mitsuyoshi Taniguchi

Kunimichi Nakashima

Yasuo Niino

Yoji Kamiya

Yoshihiro Arai

Takeshi Ohta

Kiyotaka Kinoshita

Akiyoshi Tashiro

Yasukazu Yamaguchi

Tetsuo Teramura

Koji Toyama

Hirotaka Imaizumi

In order to detect accurately a seating of clamped body and a clamping force at a seating, the workpiece supporting device has plural seating mechanisms. Each of the seating mechanismsincludes a load sensing elementreceiving a clamping force or a fixing force. The load sensing elementconsists of a material having a characteristic that said load sensing element is not substantially deformed by an applied load, especially it consists of a composite material dispersing a material having a pressure resistance effect or a magnetic resistance effect in a matrix of an electric insulation ceramics material. An abnormal clamping or fixing of the clamped body and an abnormal overload are detected by detecting an output from plural load sensing elementssupporting the clamped body.

Workpiece supporting device and seating mechanism therefor

In a machine tool having a worktable feed mechanism of the type that a worktable is moved in a horizontal direction relative to a tool spindle along a pair of guideways in parallel with the horizontal direction, there is provided a cutting chips collection space formed between the pair of guideways fixed to a base. A pair of ball screws are arranged outside of the cutting chips collection space for moving the worktable relative to the tool spindle in the horizontal direction. The cutting chips and coolant generated by contacting a tool with a workpiece drop into the cutting chips collection space directly without being heaped onto a cover mechanism of the worktable feed mechanism.

Machine tool and cover apparatus therefor

A pallet exchange apparatus for a machine which includes a base, a pallet exchange arm rotatably mounted on the base, a turntable rotatably mounted on the base, an engaging mechanism provided on the turntable and a pallet guide mounted on the turntable. The pallet guide is shifted between a first position where a pallet supported thereon engages with an engaging portion of the pallet exchange arm and disengages from the engaging mechanism and a second position where the pallet engages with the engaging mechanism and disengages from the engaging portion of the exchange arm. The pallet exchange arm is rotated so as to exchange the pallets engaged with the engaging portion thereof between the turntable and a table of the machine.

Pallet exchange apparatus

Growing community of inventors

Takahama, Japan

Mitsuyoshi Taniguchi