Robot arm with modular drive units and modular drive unit therefor
The modular drive unit with integrated components like servo motors and sensors addresses the challenges of efficient adjustment and simplified maintenance in robot arms, enhancing precision and assembly efficiency.
WO2025233248A1 Publication Date: 2025-11-13KUKA DEUT GMBH
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Patent Information
- Application Number
- PCT/EP2025/062107
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-05-07
- Filing Date
- 2025-05-02
- Publication Date
- 2025-11-13
AI Technical Summary
Technical Problem
Existing robot arms face challenges in efficient adjustment, precise calibration, simplified assembly, and accelerated maintenance due to complex and non-modular drive systems.
Method used
A modular drive unit integrating a servo motor, wave gear, encoders, holding brake, load sensor, and axial cable routing, which enhances precision, simplifies assembly, and accelerates maintenance.
Benefits of technology
Enables efficient, precise adjustment of robot arm joints, reduces calibration effort, and improves assembly and maintenance efficiency through modular integration and sensor-enhanced operation.
✦ Generated by Eureka AI based on patent content.
Abstract
A modular drive unit (A1, A2, A3, A4, A5, A6, A7) for adjusting a rotary joint of a robot arm (100) has: a servo motor with a motor housing (1, 1.1, 1.2, 1.3) and a drive shaft (2); a strain wave gear (4.1, 4.2) coupled to the drive shaft; a holding brake (3) coupled to the drive shaft; a drive encoder (5.1) for detecting a position of the drive shaft; an output encoder (5.2) for detecting a position of an output (4) of the strain wave gear; a servo controller (6) signal-connected to the drive encoder and the output encoder; a load sensor (7); and a hollow shaft (8) for passing the cable axially through the drive unit. The invention also relates to a robot arm having the drive unit.
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