Compact SCARA Robot with Built-In Servo Drivers

In applications where space saving and high-precision control are required, making robot arms more compact is one of the key design challenges.

To address this, we developed a SCARA robot demo unit that uses hollow direct drive (DD) motors and integrates servo drivers directly inside the robot arm.

Advantages of Built-In Servo Drivers Inside the Arm

Traditionally, servo drivers are installed outside the arm, such as inside a control cabinet. By integrating the drivers directly inside the arm, this system offers the following advantages.

• Reduced installation work through shorter wiring

• Improved noise resistance

• Better control response

• Space saving in the control cabinet

The servo drivers built into this robot are dramatically smaller than conventional models, making integration into limited spaces possible.
At the same time, this ultra-compact design is also more delicate, so greater care is required for the operating environment and noise countermeasures than with conventional systems.
During installation and operation, more careful handling is required than before, especially in terms of the installation environment and electrical noise control.

Greater Design Flexibility and High-Precision Motion with Hollow DD Motors

This robot uses direct drive motors with a hollow structure.
This allows air tubing and sensor cables to pass through the motor center, giving the overall system much greater design flexibility.

In addition, the zero-backlash structure and high torque performance unique to DD motors enable stable control even in assembly and inspection processes that require fine, precise motion.

As shown here, the combination of built-in servo drivers and hollow DD motors helps rethinking conventional design constraints and enables more flexible robot design.

If you are considering higher equipment density or simpler wiring, please take a look.

Used Models

• エンコーダ

Shaft-Type and Hollow-Shaft Type Rotary Encoder

2024/09/24