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lathes
lathes are designed to rotate the workpiece and feed the cutting tool in the direction necessary to generate the required machined surface.
the most common form of lathe is the turret lathe it consists of a horizontal bed supporting the headstock, the carriage and the turret. the workpiece is gripped in a chuck or collet or is mounted on a faceplate mounted on the end of the main spindle of the machine.
the rotation of the workpiece is provided by an electric motor driving the main spindle through a series of gears.
cutting tools are mounted on the cross slide and on the turret. the tool on the cross slide can be driven or fed parallel to or normal to the axis of rotation of the workpiece. the turret can be indexed to bring the various tools into position and can be driven or fed along the bed of the lathe.
modern turret lathes are provided with computer control of all of the workpiece and tool motions. these are known as computer numerical control (cnc) lathes and the too or the cross slide can be fed in any direction in the horizontal plane to generate a required contour on the workpiece.
a cylindrical surface being generated by rotation of the workpiece an the movement of the carriage along the lathe bed; this operation is known as cylindrica turning.
随设备赠送的工装夹具。
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好的