Device for two-sided promotion of punching of glass of half flat cam of circle

The utility model relates to a device for two-sided promotion of punching of glass of half flat cam of circle, including two 180 degree cam basic circle pushing mechanism, two pulleys and two drill bits, two 180 degree cam basic circle pushing mechanism set up respectively on waiting to process glass, the below, every 180 degree cam basic circle pushing mechanism has a drill bit device, every drill bit device is by the pulley, high speed motor returns power spring and drill bit and constitutes, two pushing mechanism back to the one side set up rotary main shaft and drive rotatoryly by rotary main shaft, cam slow ascending part position, cam plunge from low to high bellying that position constitute are set up by the cam position that rises suddenly two one sides that pushing mechanism is relative separately. The utility model discloses beneficial effect does: can guarantee that glass hole two sides is peripheral slick and sly pleasing to the eye, can not collapse limit or damage, ruptured possibility when greatly having reduced tempering glass