Patent ID: 8777700
Filing Date: 2014-07-15
Classification: B24B

Abstract:
1. A scattering prevention structure that covers a machining region of a grinding machine having a pair of supporting tables that is disposed facing each other and rotatably supports a workpiece, a grinding stone table having a grinding stone head that rotatably supports a grinding stone, an X axis saddle that movably supports the grinding stone table along an advancing/retracting direction with respect to the workpiece, a Z axis saddle that movably supports the X axis saddle along a rotating axis direction of the workpiece, and a grinding stone cover that covers the grinding stone, the scattering prevention structure comprising: a first fixing cover and a second fixing cover that are respectively attached to sides where the respective supporting tables face each other; a Z axis shielding cover that shields the first fixing cover, the second fixing cover, and the grinding stone cover one from another and has the grinding stone cover attached thereto such that the grinding stone cover is movable in the rotating axis direction of the workpiece; and an X axis shielding cover that is attached to the grinding stone cover such that the grinding stone head having the grinding stone attached thereto fits in the X axis shielding cover, shields the grinding stone head and the grinding stone cover one from the other, and has the grinding stone head attached thereto such that the grinding stone head is movable in the advancing/retracting direction with respect to the workpiece, wherein the machining region is covered by the first fixing cover, the second fixing cover, and the Z axis shielding cover to form a machining chamber, the grinding stone cover is fixed to the Z axis saddle such that the grinding stone cover opens into the machining chamber, and the grinding stone head is movable relative to the grinding stone cover via the X axis shielding cover in the advancing/retracting direction with respect to the workpiece.