Abstract: Aiming at the disadvantages of large volume,high cost and poor generality of laser engraving machine in the market,a kind of laser engraving machine based on the structure of the Delta robot was designed,the mechanical structure and control system were described,as the research object,the kinematics reverse solution of the mechanical body was solved,the inverse kinematics equation was derived.The accuracy analysis of the prototype shows that the precision meets the requirements of laser processing system.

Key words: laser engraving, Delta robot, system design