Pneumatic guide rail cutter

The pneumatic type guide rail cutter comprises a cutting frame, a fixed block and a movable block, the fixed block is arranged in the cutting frame, the movable block is rotationally arranged on the fixed block, a fixed hole allowing a guide rail to penetrate through is formed in the fixed block, and a cutting hole allowing the guide rail to penetrate through is formed in the movable block; an air cylinder is arranged on the cutting frame and used for driving the movable block to rotate so that the fixing hole and the cutting hole can be staggered. The quality of a guide rail cutting opening can be improved, and the machining efficiency is improved. 本申请公开了一种气动式导轨切断器，其包括切割框架、固定块以及活动块，所述固定块设置在切割框架内，所述活动块转动设置在固定块上，所述固定块上开设有供导轨穿过的固定孔，所述活动块上开设有供导轨穿过的切割孔；所述切割框架上设置有气缸，用于驱动活动块转动以使固定孔与切割孔错位。本申请能够提高导轨切割口的质量，提高加工效率。