The Type KR-RL LM Guide Actuator from THK features a driving element that uses right/left threads and enables symmetrical movements with a single motor. This was formerly available only as a custom system.
The Type KR-RL Actuator integrates an LM Guide and a ball screw. Because the single shaft is capable of simultaneous right and left drive, it eliminates many of the components and the complexity from the design.
"The Type KR-RL combines two drive systems in one package," explained Yoshitaka Kinoshita, Mechatronics Manager, THK America, Inc. "A right- and left-handed ball screw and an integrated body make for a compact design, as opposed to using two separate ball screws and two separate LM Guides. Compared to the Type KR Actuator, the KR-RL offers an even more compact design with higher rigidity and precision."
An electric actuator, the Type KR-RL is engineered to provide several advantages over pneumatic types. "Where a pneumatic gripper simply provides an open and close function, the Type KR-RL offers precise force control," said Kinoshita. "Gripping force can be regulated according to the fragility of the object being transferred. Speed control, a longer life through the incorporation of heat-treated steel and energy savings are additional benefits.
The Type KR-RL is designed to handle loads in all four directions (radial, reverse-radial and horizontal), making it possible to install in any mounting orientation. It is suited for end effectors of robot arms that move freely.
The Type KR-RL is designed for a wide range of applications, including gripping, measuring and positioning for robot hands, screw tightening machines, cutting equipment and dispensers. It is available in nine sizes ranging from 15 mm to 65 mm with long or short block types.
For more information contact:
THK America, Inc.
200 E. Commerce Drive
Schaumburg, IL 60173
800-763-5459 / 847-310-1111
www.thk.com