Patent ID: 7044696
Filing Date: 2006-05-16
Classification: B23Q,Y10T

Abstract:
1. A chip discharging device for a machine tool which has a bed; a table arranged on the bed to be movable in a forward and backward (Z axis) direction; a spindle head configured to be movable in an up and down (Y axis) direction and in a left and right (X axis) direction; a spindle supported by the spindle head to horizontally face a front side of the machine; a column fixed upright on the bed; and a saddle arranged on a front surface of the column to be movable in the left and right (X axis) direction, in which the spindle head is arranged on a front surface of the saddle to be movable in the up and down (Y axis) direction, the bed is formed in a rectangular frame shape in plan view which has left and right side wall portions extending in the Z axis direction on which guide rails for moving the table are arranged, and front and rear wall portions connecting front end portions and rear end portions of the left and right side wall portions respectively, the column is arranged and fixed on an upper surface of the rear wall portion of the bed, the rear wall portion is arranged to deviate upward, and a rear wall inclined surface rising obliquely upward is formed on a bottom portion of the rear wall portion, the chip discharging device comprising: a storage tank for storing coolant arranged inside the rectangular frame of the bed, said storage tank having a form which extends through a space beneath the rear wall portion to a backside of the machine tool and further stands up obliquely upward along the rear wall inclined surface; and a chip conveyor arranged inside said storage tank for conveying chips to the backside of the machine tool.