ABB ball screws key transmission role in robots rotary linear motion

ABB ball screws play a key transmission role in robots. They can efficiently and accurately convert the motor's rotary motion into linear motion to achieve precise positioning and trajectory control of robot components. The following is a related introduction and some models:

Features

High precision: manufactured by precision grinding or cold rolling process, the accuracy level is usually between C0-C7, which can meet the strict requirements of robots for motion accuracy.

High efficiency: rolling friction replaces sliding friction, with high transmission efficiency, which can effectively reduce energy loss and improve the operation efficiency of robots.

High rigidity: screws and nuts are usually made of high-strength materials, and after special heat treatment and surface treatment, they have high rigidity and can withstand large loads.

Reversibility: It can convert linear motion into rotary motion, and also convert rotary motion into linear motion. It has good reversibility and is suitable for various complex robot motion scenes.

Model of ABB ball screws

FSU series: It belongs to single nut internal circulation ball screw, manufactured according to DIN 69051 standard, with high precision, low noise and other characteristics, and is often used in robot joint transmission and linear motion mechanism with high precision requirements. For example, the FSU1605 model has a screw diameter of 16mm and a lead of 5mm.

DFU series: double nut internal circulation ground-grade ball screws, which also comply with the DIN 69051 standard, have high rigidity and preload, can effectively eliminate transmission clearance and improve transmission accuracy. For example, the DFU03204-4 model has a screw diameter of 32mm and a lead of 4mm, where 4 represents the number of turns of the nut.

FSI series: single nut internal circulation ball screws, which have small dimensions and high transmission efficiency, are suitable for compact robot structures. For example, the FSI3210 model has a screw diameter of 32mm and a lead of 10mm.

However, it should be noted that the ball screws in ABB robots are usually produced or purchased in cooperation with professional transmission component manufacturers, not produced by ABB itself. In actual applications, the appropriate ball screw model can be selected according to the specific load, travel, accuracy and other requirements of the robot.