Tapping machine capable of fixing workpieces conveniently

The utility model discloses a tapping machine convenient to fix a workpiece, which comprises a tapping machine operating platform, a clamping adjusting mechanism is arranged in the tapping machine operating platform, and clamping rods are arranged on both sides of the clamping adjusting mechanism. The adjusting motor is started to enable the screw rod to rotate, so that the connecting sleeve drives the adjusting sleeve rod to move downwards, then the adjusting sleeve rod pushes the clamping rods to be close to each other, the effect that the clamping plates clamp and fix the two sides of a workpiece is achieved, the workpiece is prevented from moving in the machining process, and the machining efficiency is improved. Compared with manual fixing, mechanical fixing is firmer and more stable, workpieces of different sizes can be conveniently fixed, meanwhile, the contact area between the clamping plate and the workpieces can be increased through the anti-skid protruding blocks, rigid collision between the workpi