Oblique fracture saw and board positioning mechanism is depended on in activity thereof

The utility model discloses an oblique fracture saw and board positioning mechanism is depended on in activity thereof. The activity includes by board positioning mechanism: a pedestal. The work carousel, it is installed on the base and can be in the horizontal plane for the base pendulum changes be provided with the saw bit groove on the upper surface of work carousel, fixed backup plate, its fixed mounting on the base, fixed backup plate vertically in the horizontal plane and with work as when the oblique fracture saw is in the perpendicular cut position the extending direction in saw bit groove is mutually perpendicular, the activity backup plate, it is in order following the longitudinal movement's of fixed backup plate mode is installed in the fixed backup plate. Wherein, be in be formed with the cam surface on the outer peripheral face of work carousel keeping away from of activity backup plate the one end in saw bit groove be provided with can with cam surface complex cam follower. When when the work c