Big Daishowa Co., Ltd.

Big Daishowa Seiki Co., Ltd.

Masataka Yauchi

Kouichi Uemura

Reina Oohashi

Shunsuke Kumasaki

Akihito Funashoku

Yukio Tsujita

A balance and runout amount adjustment system for a rotary tool includes a rotary tool constituted of a tool holder mounted on a spindle, a balance determining device configured to obtain outer circumference position data of the rotary tool and to determine a mass balance of the rotary tool based on the outer circumference position data obtained, in the course of rotation of the rotary tool and a runout determining device configured to obtain shape data of the rotary tool and to determine a runout amount of the rotary tool based on the shape data obtained, in the course of rotation of the rotary tool. The rotary tool is configured to be capable of adjustment of the mass balance based on the result of the determination made by the balance determining device and capable also of adjustment of the runout amount based on the result of the determination made by the runout determining device.

System for adjusting balance and runout of rotary tool, device for determining the balance and runout, method of adjusting the balance and runout, and tool holder

There is provided a tool shape measuring apparatus that allows detection of shape abnormality in a tool having a plurality of cutting edges with a simple configuration. A light receiving sectionincludes a light receiving faceperpendicular to an optical axisof a light receiving lens. In the light receiving face, there are disposed a plurality of line sensorsarranged in different directions from each other, each line sensor having a plurality of sensor elements arranged in one direction. The line sensoris disposed across a first area not reached by the irradiation light L as being completely blocked by the tool, a second area disposed adjacent the first area and reached by the irradiation light L with a portion thereof being blocked, and a third area disposed adjacent the second area and reached by the irradiation light L not blocked at all. A calculation sectionchecks change occurring in output states of the line sensorassociated with rotation of the tooland specifies a contour position of the toolbased on a center position in the second area when the number of the sensor elements included in the second area becomes minimal.

Tool shape measuring apparatus

Measuring instrument for machine tools

Growing community of inventors

Osaka, Japan

Masataka Yauchi