Universal joint channel milling forming cutter

The utility model discloses a universal joint channel milling forming cutter, which relates to the field of cutters and comprises a milling cutter head, four groups of adjusting mechanisms are arranged on the surface of the milling cutter head, a positioning mechanism is arranged on the surface of a rotating mechanism, fixing mechanisms are arranged on two side surfaces of the positioning mechanism, and the two groups of fixing mechanisms are arranged in bilateral symmetry. By arranging the positioning mechanism and the fixing mechanism, when the milling tool bit needs to be replaced, the clamping air cylinder is adjusted towards the outer end to enable the clamping plate to be separated from the milling tool bit, the compression spring is reset and stretched to eject the milling tool bit, after the milling tool bit is taken down, a new milling tool bit abuts against the surface of the positioning seat, the milling tool bit is fixed, and the milling tool bit can be replaced. According to the milling tool apro