Abstract: A rotation mechanism 9 rotates a spindle 2a to which a workpiece 6 is attached. A feed mechanism 8 feeds a cutting edge 4a positioned obliquely relative to a rotation axis of the workpiece 6 in a direction containing a cutting direction component orthogonal to the rotation axis with the cutting edge 4a cutting into the workpiece 6 to machine a surface of the workpiece 6. The cutting edge 4a of a cutting tool 4 has been formed by scanning a cylindrical irradiation region including a focused spot of laser light over a diamond-coated layer of a chip base material.

Abstract: A lathe includes a lathe-side chuck that holds a workpiece with the workpiece directed toward or facing a front side, a main spindle that rotates around an axis, and a tool that machines the workpiece. A machining center includes a rotary tool that rotates around an axis in the horizontal direction and an MC-side chuck that holds the workpiece and is able to turn between at least a workpiece pass/receive position in which the workpiece is directed toward or facing the front side and a machining position in which the workpiece is directed toward or facing the rotary tool. A loader includes a guide rail extending above the lathe-side chucks, and MC-side chuck along the horizontal direction and a loader head that holds the workpiece and carries the workpiece between at least the lathe-side chucks, and MC-side chuck by moving along the guide rail.

Abstract: A lathe includes a lathe-side chuck that holds a workpiece with the workpiece directed toward or facing a front side, a main spindle that rotates around an axis, and a tool that machines the workpiece. A machining center includes a rotary tool that rotates around an axis in the horizontal direction and an MC-side chuck that holds the workpiece and is able to turn between at least a workpiece pass/receive position in which the workpiece is directed toward or facing the front side and a machining position in which the workpiece is directed toward or facing the rotary tool. A loader includes a guide rail extending above the lathe-side chucks, and MC-side chuck along the horizontal direction and a loader head that holds the workpiece and carries the workpiece between at least the lathe-side chucks, and MC-side chuck by moving along the guide rail.

Abstract: A machine tool includes a base and a plurality of types of mechanism units. Each of the mechanism units includes a unit portion wiring. Some of the mechanism units include a unit built-in control circuit arranged and programmed to control a drive source within such unit. A conveyance apparatus includes a guide equipped frame and a traveling member. The guide equipped frame includes a plurality of travel guide units connected together. The travel guide units include a rectilinear section and a curved section. A travel drive of the traveling member includes a plurality of individual motors, which are armatures on a primary side provided in the travel guide units, and a mover provided in the traveling member.

Abstract: There is provided a driving apparatus of an electric motor for a reduction roll that can improve maximization of rolling performance and a speed decrease amount by making maximal use of torque that various electric motors can generate during material entry.

Abstract: A driving device driving motors of rolling rolls that corrects asymmetry between top and bottom roll driving systems of a twin-drive rolling mill in which top and bottom rolling rolls are driven by upper and lower motors, respectively, so that torques propagate to the top and bottom rolling rolls simultaneously. To this end, an upper/lower axis system imbalance correction section that corrects inequalities of torques propagating to the top and bottom rolling rolls is provided in either one or both of an upper motor control section that controls the upper motor and a lower motor control section that controls the lower motor in a driving device of motors for rolling rolls used in a rolling mill. The top and bottom rolling rolls are driven by the upper motor and the lower motor, respectively, and one of the upper motor and the lower motor is located on a rolled material. Thus, torques propagate to the top and bottom rolling rolls simultaneously.

Abstract: There is provided a driving apparatus of an electric motor for a reduction roll that can improve maximization of rolling performance and a speed decrease amount by making maximal use of torque that various electric motors can generate during material entry.