Semiautomatic lock cylinder sawing machine

The invention discloses a semiautomatic lock cylinder sawing machine, which comprises a frame, a lock cylinder positioning device and a sawing device. The lock cylinder positioning device and the sawing device are arranged on the frame. The lock cylinder positioning device comprises a mounting plate, a mounting seat is fixedly arranged on the mounting plate and comprises a front section and a rearsection, the front section and the rear section are in adjacent connection, the upper end face of the front section is uniformly provided with a plurality of semi-cylindrical containing grooves alongthe length direction, the containing grooves extend towards the rear section to form positioning holes, and the inner wall of each positioning hole is radially and protrudingly provided with a peripheral limiting block. The sawing device comprises a multi-head milling cutter above the front section. In machining, to-be-machined lock cylinder bodies are sequentially put into the containing groovesof the mounting seat and p