| 摘要 |
The spindle of the rotary machine tool of vertical arrangement includes a housing, an actuating cylinder, a spring, an ejector, cams located in the cavity of the housing executed in the form of crank levers, short arms of which interact with the stock of actuating cylinder, and long arms - with fastened component. The ejector is executed in the form of three auxiliary, equidistantly located between the cams, in parallel to the axis of spindle, cylinders of one-sided action, piston cavities of which are connected with the stock cavity of actuating cylinder filled liquid (for example, machine oil), the ratio of the square of diameter of which to the square of the diameter of each auxiliary cylinder is equal to the triple relation of the piston stroke of each auxiliary cylinder to the piston stroke of actuating cylinder.
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