| 摘要 |
The object of the invention relates to the technical branch of machine-tool accessories. The adapter features a torque limiter comprising a driving means (2) provided with a plurality of radial openings (2d) and axial openings (2e) which communicate between themselves, designed so that each set of openings (2d-2e) houses two balls arranged side by side, of which one (5) contacts the profiled recesses (1b) of a tap holder (1) of correspondent number, and the other one (6), contacts the top element (7) of an adjustable elastic means housed between the tap holder and a casing (3), so as to separate the driving means from the tap holder when the determined torque has been reached. The invention is applicable to all tapping chucks or various machine-tools. |
