Title: The Dragon Lensman
Description: From back cover Bantam paperback October 1983:

Worsel, the fearless Second Stage Dragon Lensman of Velantia III, was faced with the deadliest challenge of his distinguished career -- a machine rebellion on the Planetoid of Knowledge.  Not even the great Kimball Kinnison himself could save Worsel from this robotic conspiracy, fostered by the treacherous Spawn of Boskonia.
Subjects: Science fiction