There are three kinds of clamping methods commonly used to grind the outer surface of the cylindrical grinder.
(1) Center-point clamping, shaft parts usually use double-center clamping. The clamping method is basically the same as that used in turning.
(2) Chuck clamping, three-jaw self-centering or four-jaw single-action chuck clamping is used for grinding the outer circle of short workpieces. The clamping method is basically the same as that of lathe.
(3) Mandrel clamping. Hollow workpieces such as disc sleeves are often positioned and polished with an inner cylindrical hole. When the clamping method is the same as grinding the inner circle on a lathe, the outer circle and end surface of the workpiece are generally used as the positioning reference. Usually The three-jaw self-centering or four-jaw single-action chuck is used to clamp the workpiece. Among them, the four-jaw single-acting chuck is most used for clamping the workpiece. When the workpiece is supported on the front and rear centers, the center is fixed: when used When grinding with three-jaw or four-jaw chucks, the spindle rotates with the flange: when self-grinding the spindle apex, the dial directly drives the spindle and apex to rotate, relying on the machine tool to grind the apex.