MEASURING DEVICE AND GRINDER PROVIDED WITH MEASURING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a grinder in which a measuring device can be post-fitted more easily compared with an existing grinder without any measuring device.SOLUTION: A grinder provided with a measuring device comprises a rotational grind stone 26 which is rotated with one axial line as a center, workpiece support devices 28A and 28B which support a crank shaft 32 as rotatable at the position of an outer peripheral grinding surface 261 of the rotational grind stone 26, and a measuring unit 33 which measures the outer diameter of the crank shaft 32 under grinding. A support arm 38 is provided which extends along the outer periphery of the rotational grind stone 26 and supports the measuring unit 33 at the end part. Support rollers 36 and 37 are provided which support the support arm 38 as reciprocatingly-movable in a self-extension direction. A drive member 44 is provided which moves the support arm 38 in the extension direction.