Robots are assuming increasingly demanding assignments. For example, they are now used for high-precision machining tasks on large components such as aircraft fuselages. Or they move as cobots in direct human-robot collaboration. In both cases the exact motion control of the robot arm is the decisive requirement that must be fulfilled. You can use the new encoder solutions for robotics from HEIDENHAIN and AMO to expand your range of applications.
The new KCI 120 Dplus dual encoder from HEIDENHAIN delivers motor feedback and position measurement in just one rotary encoder. By measuring the position downstream from the transmission gear system, the KCI 120 Dplus compensates for inaccuracies inherent in highly mobile and dynamic robots. This is necessary because, in order to achieve the desired mobility, articulated robots, for example, operate with serial kinematics and up to six axes. Each of them influences the accuracy:
In order to perform its dual functions, the KCI 120 Dplus encoder has one central scanning unit and two separate circular scales. It is thus very compact and easy to integrate. The purely serial EnDat 2.2 interface with functional safety permits its use in safety-related applications such as human-robot collaboration.KCI 120 Dplus product information
Robot manufacturers can significantly improve absolute position accuracy by including additional highly accurate angle encoders on each robot axis. Mounted downstream from the gear system, secondary encoders measure the actual position of each robot joint.
Modular angle encoders, such as the HEIDENHAIN ECA 4000 with optical scanning or the WMRA angle measuring system from AMO, are available for this type of application. Thanks to their modular design with a scale drum or measuring ring and a separate scanning unit, they are suitable for large shaft diameters as well as for difficult installation situations. You can choose any diameter for the WMRA measuring ring from AMO.
The KCI 1300 and KBI 1300 rotary encoders developed by HEIDENHAIN are inductive encoders that consist of a scanning unit and a screw-fastened circular scale or a disk/hub assembly for press-fitting onto a motor shaft.
The KCI 1300 and KBI 1300 rotary encoders are thus very well suited for compact servomotors of robots.KCI 1300 product information