| 摘要 |
The invention relates to mechanical engineering, in particular to curve tracing devices and tools.The curve tracing mechanism contains a hub (1), on the end surface of which are made circular grooves (2, 3, 4, 5), separated by circular collars (6, 7, 8, 9), in each is made one threaded hole (10, 11, 12, 13), and a link (19) with a through groove (20), made along it, with a length exceeding the outer diameter of the last circular groove (5), and with a through hole, shifted to one of the ends of the link (19). The link (19) is kinematically connected to the hub (1) through a stud (14) with a nut (16) and a washer (15), mounted through the through groove (20) of the link (19) in one of the threaded holes (10, 11, 12 , 13) of the hub (1), and through a stud (17) with head and a nut (18), whose leg is fixed in the through hole of the link (19), and its head is located in one of the circular grooves (2, 3, 4, 5 ) of the hub (1). On the end surface of the link (19) are made millimetric graduations, and on the other end thereof, on the side surface is fixed a sliding extender (22), in which is made a through groove, through which, by means of bolts, the extender (22) is attached to the link (19). At the end of the extender is mounted a bush (24) with a screw (25).
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