Machine tool robotic compliance unit / collision sensor DEPRAG

Overview
The DEPRAG Adaptive System (DAS) is a patented adaptive robot flange designed for grinding and finishing processes. It stabilizes tool-to-workpiece contact by active positional compensation and real-time force regulation, enabling consistent material removal on complex contours and varying component tolerances.

Key features

• Active positional compensation with up to 0–40 mm stroke
• Precise real-time piezoelectric force control
• Universal compatibility with major industrial robot brands
• Engineered for demanding grinding and finishing applications

Your advantages with DAS

• Stable contact force:
  Active compensation of positional and process influences for uniform material removal.
• Improved surface quality:
  Reduces chatter marks, rework and scrap rates.
• Suitable for complex geometries:
  Maintains secure contact on varying contours and component shapes.
• System integration:
  Optimally combinable with DEPRAG grinding spindles and DGS units.

Technical highlights

• Active positional balancing
• Stroke range: 0–40 mm
• Real-time piezoelectric force regulation
• Force range: −200 N to +250 N
• Communication: EtherCAT-P (One-Wire Solution)
• Universal interface for clamping tools
• Quick-change mechanism for robot attachment
• Compatibility: KUKA, Fanuc, ABB, Yaskawa and others
• Active surface measuring system

Function & application
DAS acts as an adaptive interface between robot and tool to stabilize grinding where unstable contact, component tolerances, distortion or changing contours would otherwise cause fluctuating contact pressure and uneven material removal. It enables force-controlled grinding, tolerance and contour compensation, and straightforward integration into robot cells and automation solutions.

Industries & application areas

• Automotive industry & suppliers — stable grinding processes with varying component tolerances
• Foundries & material processing — compensation for deviations in cast parts
• Welding technology — contour and seam processing with uniform force application
• Plastics & composite components — finish grinding and surface treatment of sensitive materials

Service & integration (process steps)

• Process evaluation — analyze geometry, surface and tolerances
• System concept — define DAS configuration and interfaces
• Integration — connection to robot/PLC and peripherals
• Service — training, support and process reliability

Technical characteristics / specifications

• Model name: DEPRAG Adaptive System (DAS)
• Stroke: 0–40 mm
• Force regulation: real-time piezoelectric control
• Force range: −200 N to +250 N
• Communication: EtherCAT-P (One-Wire Solution)
• Interfaces: universal clamping tool interface, quick-change robot attachment
• Compatibility: KUKA, Fanuc, ABB, Yaskawa, others
• Functionality: active positional balancing, active surface measuring system