Portable gear hobbing machine for teaching demonstration

The invention provides a portable gear hobbing machine for teaching demonstration. The portable gear hobbing machine comprises a box body machine frame, a position-changing mechanism, a driving mechanism, a roll-cutting mechanism, a worm and gear transmission mechanism, a bevel gear transmission mechanism and a synchronous pulley transmission mechanism. The driving mechanism is connected with the position-changing mechanism through the worm and gear transmission mechanism. Transmission is achieved between the driving mechanism and the roll-cutting mechanism through the bevel gear transmission mechanism and the synchronous pulley transmission mechanism. A workpiece clamping device is vertically arranged on the position-changing mechanism. The portable gear hobbing machine is particularly suitable for visually demonstrating the generating method gear machining principle in classroom teaching, and has the advantages of being small and exquisite in size, compact in structure, low in manufacturing cost, convenient to carry, easy to operate, high in safety, ideal in teaching demonstration effect and the like.