| 摘要 |
<p>A machine tool on which a tool unit (9) is attached to a main shaft via an attachment (8) wherein: the attachment has a cylinder (60) fixed to the main shaft (7) and a piston (70) slidably held on the cylinder (60); the cylinder (60) has a plurality of spherical bodies (110) capable of projecting in the radial direction of the cylinder (60); the piston (70) has an abutment face (71) that causes the spherical bodies (110) to project in the radial direction of the cylinder (60) when the piston slides toward one side with respect to the cylinder (60); and the tool unit (9) has a projection inclined face (41) projecting in the radial direction of the tool unit (9) and is coupled to the attachment (8) by way of the projection inclined face (41) being in pressing contact with the spherical bodies (110) that were caused to project by the piston (70) sliding toward the one side.</p> |
