Industrial robot calibration with a new low-cost 3D measuring device

Robot calibration is the process of identifying the parameters of a new theoretical model that represents more accurately the relationship between the joint values and the pose of the end-effector. Typically, in the first step of this process, a laser tracker is used to measure the positon of the end-effector in a number of robot configurations. Laser trackers are, however, very expensive. In this work, we have developed a new wireless low-cost 3D measurement device composed mainly of three digital indicators. Then, we mount the device on the robot's flange and constraint in automatically to three well-known positions (three precision spheres) with various end-effector orientations. We have demonstrated that in the case of an ABB IRB 120 robot, we are able to nearly match the performance of a laser tracker when it comes to improving the accuracy of the robot.

[@safdarmahmood2182]

music is so trippy!

[@impactodelsurenterprise2440]

So after calibrating the robot will the accuracy of the robot improve say from one extremity to the other?

[@williamhuang5329]

Hanzhen harmonic drive gear , robot joint , strain wave reducer, over 30 years experience

[@ericschleicher]

Ha Ha Low cost.