① horizontal turntable: in the round table with the workpiece positioning center hole and clamping T-slot. The outer circumference of the table is engraved with an equal score of 360 °. Between the table and the base with worm - worm gear (see worm drive), speed ratio of 90: 1 or 120: 1, for transmission and indexing, the worm from the base of the end of the end of the subdivision dial and hand wheel. Turn the hand wheel to drive the table, and from the table on the outer circumference of the scale (in degrees) and subdivision dial to read the rotation angle. The indexing accuracy is typically ± 60 ". The worm end of the horizontal turntable can also be connected to the machine tool drive by means of a coupling to achieve power drive.
② vertical turntable: the base has two mutually perpendicular mounting base, so that the table can be placed vertically or horizontally.
③ universal turntable: table can be 0 ° ~ 90 ° range of any angle, so that the workpiece in any angle can be accurately adjusted. Rotary table