Abstract: A control unit of a cutting apparatus has a suction checking function of determining that foreign matter is clogged in a suction hole and issuing an instruction on removal of the foreign matter in a case where the value of a pressure gauge before mounting of a cutting blade onto a mount is less than a first predetermined value, and a mounting checking function of inhibiting start of rotation of a rotary shaft in a case where the value of the pressure gauge after mounting of the cutting blade onto the mount does not reach a second predetermined value smaller than the first predetermined value and permitting the start of rotation of the rotary shaft in a case where the value of the pressure gauge after mounting of the cutting blade onto the mount has reached the second predetermined value.

Abstract: A cutting apparatus includes: a processing feeding unit that performs processing feeding of a chuck table adapted to hold a workpiece; and two cutting units in which rotational axes of two spindles coincide with each other and cutting blades mounted to the spindles face each other. Each cutting unit includes a flange mechanism in which the cutting blade having a cutting edge fixed to an outer peripheral edge of a one-side outer surface of a circular disk-shaped base is fixed to the spindle. The flange mechanism is fixed to a tip of the spindle, sucks an other-side outer surface of the base of the cutting blade, and fixes the cutting blade to the spindle with the one-side outer surface of the base exposed to the side of the tip of the spindle, and the one-side outer surfaces of the cutting blades fixed to the two cutting units.

Abstract: A control unit of a cutting apparatus has a suction checking function of determining that foreign matter is clogged in a suction hole and issuing an instruction on removal of the foreign matter in a case where the value of a pressure gauge before mounting of a cutting blade onto a mount is less than a first predetermined value, and a mounting checking function of inhibiting start of rotation of a rotary shaft in a case where the value of the pressure gauge after mounting of the cutting blade onto the mount does not reach a second predetermined value smaller than the first predetermined value and permitting the start of rotation of the rotary shaft in a case where the value of the pressure gauge after mounting of the cutting blade onto the mount has reached the second predetermined value.

Abstract: A cutting apparatus includes: a processing feeding unit that performs processing feeding of a chuck table adapted to hold a workpiece; and two cutting units in which rotational axes of two spindles coincide with each other and cutting blades mounted to the spindles face each other. Each cutting unit includes a flange mechanism in which the cutting blade having a cutting edge fixed to an outer peripheral edge of a one-side outer surface of a circular disk-shaped base is fixed to the spindle. The flange mechanism is fixed to a tip of the spindle, sucks an other-side outer surface of the base of the cutting blade, and fixes the cutting blade to the spindle with the one-side outer surface of the base exposed to the side of the tip of the spindle, and the one-side outer surfaces of the cutting blades fixed to the two cutting units.

Abstract: A mount flange for mounting a cutting blade on a spindle is provided. The cutting blade has a central engaging hole and a peripheral cutting edge. The mount flange includes a cylindrical boss portion having a front portion adapted to be inserted into the engaging hole of the cutting blade and a rear portion whose inner circumferential surface is adapted to be engaged with the spindle, and a flange portion projecting radially outward from the rear portion of the boss portion and having a front surface functioning as a mounting surface adapted to come into abutment against one side surface of the cutting blade. An annular space is formed in the mount flange so as to surround the spindle and open to the inner circumferential surface of the boss portion, thereby suppressing rearward warpage of the outer circumference of the flange portion due to the rotation of the spindle.

Abstract: A mount flange for mounting a cutting blade on a spindle is provided. The cutting blade has a central engaging hole and a peripheral cutting edge. The mount flange includes a cylindrical boss portion having a front portion adapted to be inserted into the engaging hole of the cutting blade and a rear portion whose inner circumferential surface is adapted to be engaged with the spindle, and a flange portion projecting radially outward from the rear portion of the boss portion and having a front surface functioning as a mounting surface adapted to come into abutment against one side surface of the cutting blade. An annular space is formed in the mount flange so as to surround the spindle and open to the inner circumferential surface of the boss portion, thereby suppressing rearward warpage of the outer circumference of the flange portion due to the rotation of the spindle.