Sawtooth inner angle arc grinding equipment

The invention provides sawtooth inner angle arc grinding equipment which comprises a working platform, a mounting frame, a grinding device, a tooth shifting assembly, a movable clamping piece and a fixed clamping piece, a feeding hydraulic rod is mounted on the mounting frame, the movable end of the feeding hydraulic rod is connected with a bearing block, a lifting block is slidably mounted on the bearing block, and a mounting rod is mounted on the lifting block; the tooth shifting assembly is slidably arranged on the mounting frame. According to the sawtooth inner angle arc grinding equipment, when a saw blade is installed, the saw blade and a tooth shifting assembly form positioning, then a bearing block is moved to a machining position through a feeding hydraulic rod, the saw blade is clamped and fixed through a movable clamping piece and a fixed clamping piece, and a grinding device drives a grinding wheel to descend and rotate to grind the inner angle arc of the saw blade; after one tooth is polished, th