Tool shape measurement apparatus and machine tool
AssigneeMakino Milling Machine Co., Ltd.
InventorsTadashi Kasahara, Kenichi Ohata
Life of this patent
Estimating the term…
Abstract
A tool shape measurement apparatus for imaging a tool is provided with: a camera for imaging the tool disposed at a previously determined imaging position; a shutter disposed on the opposite side of the tool from the camera; an illuminating device for shining light toward the shutter; and a control device for calculating the shape of the tool from an image of the tool. The illuminating device is disposed so that an image in which the tool is darker than the background of the tool is captured due to light reflected at the reflecting surface of the shutter.
Claims7
A tool shape measurement device mounted on a machine tool and configured to measure a shape of a tool by picking up an image of the tool, the tool shape measurement device comprising:
- an image pickup device that picks up the image of the tool disposed at a predetermined image pickup position;
- a reflector disposed on a side opposite to the image pickup device with respect to the tool in a direction from the image pickup device toward the tool disposed at the image pickup position;
- a light source that irradiates a reflective surface of the reflector with light;
- and
- a control device that calculates the shape of the tool from the image of the tool picked up by the image pickup device, wherein
- the light source is disposed at a position at which the image in which the tool is darker than a background is captured by light reflected from the reflective surface of the reflector.
A machine tool configured to machine a workpiece by relatively moving a spindle on which a tool is attached and a table on which the workpiece is placed, the machine tool comprising:
- an image pickup device that picks up an image of the tool disposed at a predetermined image pickup position;
- a reflector disposed on a side opposite to the image pickup device with respect to the tool in a direction from the image pickup device toward the tool disposed at the image pickup position;
- a light source that irradiates a reflective surface of the reflector with light;
- and
- a control device that calculates a shape of the tool from the image of the tool picked up by the image pickup device.
Dependencies are inferred from the claim text.