Electro-hydromechanic tapping machine

摘要

The screwing machine includes a worktable (1) carries a rotary support (6a) of a slightly rising arm (6) at the end of which a prismatic body (9) is placed. The prismatic body has a system of slide bars with a double hinge (10) for a parallelogram (11) to rotate vertically and position the headstock (14). The range of speed and power for different sizes of thread is provided by an electric motor (26) coupled to a redn. gear (27). The operating handle (28) carries a switch (29) for controlling the motor. At the end of the screwing operation, a photoelectric cell (52) provides a signal for reversing the motor. The gear ratio is selected by another switch (51).