Lengthened cutter bar capable of avoiding interference

The utility model relates to the technical field of cutter clamping accessory devices, in particular to a lengthened cutter bar avoiding interference, which can conveniently fix the position, facilitate the production and processing of depth characteristics of a cutter, and reduce the interference with the two sides or the periphery of the depth characteristics. The cutter bar comprises a cutter bar body, a cutter handle, a left inserting plate, a right inserting plate, a plurality of sets of left fixing springs, a plurality of sets of right fixing springs, a left positioning plate, a right positioning plate, a plurality of sets of left limiting blocks, a plurality of sets of right limiting blocks, two sets of left pull ropes, two sets of right pull ropes, a left pull rod and a right pullrod. A cutter mounting hole is formed in the bottom of the cutter bar body; a left fixing groove and a right fixing groove are formed in the left half area and the right half area of the top in the inserting groove correspond