Riveting fastening process for plastic parts

The invention relates to the technical field of rivets, in particular to a pull riveting fastening process for plastic parts, which comprises the following steps: a linkage sleeve rotates anticlockwise for a circle to drive the upper and lower ends of a linkage block on the inner wall of the linkage sleeve to be in sliding connection with a jacking table and a pressure guide table in sequence, so that a jacking rod is controlled to be firstly jacked upwards to prop open the top of a pull rod, and a pressure head is vertical; the pull rod is pressed downwards to drive the middle part of the rivet nut to be compressed, so that the insert is riveted on the plastic part; when the lower end of the linkage block slides to the top face of the pressure guide table, the pressure head slides to the narrow section below the top of the ejector rod, and the pressure head sequentially completes expansion and clamping connection with the rivet nut and drives the rivet nut to be pressed downwards to deform and contract to be