Screw Driven Linear Actuation
A linear actuator is a device that converts the rotary motion of a servo motor into a linear motion. A screw-driven linear actuator use screw technology to create this linear motion. There are many screw actuators, including Acme screw, ball screw, and roller screw mechanisms. Choosing which type of technology to use depends on the application. Screw-driven actuators are generally suitable for high-force and high-precision applications.
Belt-Driven Linear Actuation and Gantries
A linear actuator is a device that converts the rotary motion of a servo motor into a linear motion. A belt-driven linear actuator uses a system of belts and pulleys to create this linear motion. Belt-driven actuators are often used for high-speed and low-force applications.
Gearboxes are power transmission devices that can be utilized for various reasons. Gearboxes can increase the torque of a servo motor by lending it mechanical leverage. They also have the benefit of reducing the motor-to-load inertia mismatch. Inertia mismatch can lead to unstable and difficult-to-tune servo systems. Gearboxes can increase the life of a servo motor by protecting it from the load mechanically and reducing the strain.
Rack and Pinion Linear Actuation
Rack and pinion is another method of converting rotary motion into linear motion. These devices use a rotary gear (the pinion) that engages with a linear rail (the rack) to create high-precision linear motion. Rack and pinion devices have no travel limit and are highly versatile. They tend to require more upfront mechanical engineering and design but make up for it by being a lower-cost solution.
Linear Servo Motors
Along with rotary servo motors, we also carry linear servo motors. Rather than moving rotationally, these advanced devices use linear magnetic fields to create high-performance linear motion. Linear motors are best for applications that require extremely high speeds and finely tuned movements. Linear motors also have far fewer mechanical devices, which eliminate wear points.
Rockwell Automation | Linmot
Unlike some cam-driven systems, the Precision Ring Drive System can start and stop at any incremental position. Users can change the motion profile by simply loading a new servo drive program. The Rotary Indexer also allows maximum acceleration or deceleration at any point without the risk of damage.