PICEA MOTION harmonic drive applied in Cobot

PICEA MOTION's harmonic reducers are ideal for use in collaborative robots, as Cobot have high requirements for precision, rigidity, lightweight design, safety and compact structure , all of which are the core advantages of harmonic reducers. Collaborative robots typically have 6-7 degrees of freedom, and each robot joint requires a high-precision reducer.

Why Choose strain wave gear for Collaborative Robots

1. Near Zero Backlash

Collaborative robots frequently perform:

• Precision assembly

• Lithium battery assembly

• Electronic product assembly

• Laboratory automation

• Medical auxiliary equipment

Harmonic reducer backlash is typically: ≤1 arcmin, high-end products can reach below 30 arcsec

Compared to RV reducers, they are more suitable for high-precision end-effector control.

2. High Repeatability

Typical repeatability requirements for collaborative robots is ±0.02mm (Some high-end models ±0.01mm)

3. Lightweight Design

One of the core competitive advantages of collaborative robots:

• Easy installation

• Human-robot collaboration

• Mobile deployment

Compared to traditional planetary reducers, harmonic reducers size is reduced by 30%-50%

and weight is reduced by 20%-40%. For example, a 5kg payload collaborative robot Weighs approximately 20kg. Compared with an RV reducer is used, the weight may increase by 3-5kg.

4. Advantages of hollow structure

PICEA MOTION Harmonic Hollow Series allows motor cables,encoder cables, air tubing and Vacuum tubing to pass directly through the robot joint center and rotary actuators.

• Reduced cable wear

• Increased robot lifespan

• Simpler appearance

• Improved movement flexibility

The reduction ratio applied in Cobot.