Automatic pipe cutting machine with cutting length adjusting function

The utility model discloses an automatic pipe cutting machine with the cutting length adjusting function, which comprises a cutting table, a first strip-shaped groove is formed in the horizontal center line of the cutting table along the length direction, a first lead screw motor is embedded in one end of the first strip-shaped groove along the length direction, and a lead screw is fixedly connected to an output shaft of the first lead screw motor. According to the automatic pipe cutting machine with the cutting length adjusting function, a first lead screw motor drives a first lead screw to rotate, the first lead screw drives a first lead screw nut base to move, the first lead screw nut base drives a clamping mechanism to move, automatic pushing of a steel pipe is conducted, fixed-length cutting is achieved, and further through arrangement of a limiting mechanism, the cutting length is adjusted, and the cutting length is adjusted. According to the steel pipe cutting device, auxiliary limiting can be conducte