Coherix 3D TCP Locator™ Automated Tool Center Point (TCP) Calibration System for Precision Dispensing

Correct Nozzle Misalignment and Maintain Accurate Bead Placement with Real-Time TCP Correction

The Coherix 3D TCP Locator™ is an automated solution for detecting and correcting nozzle misalignment in robotic dispensing applications. By updating the robot’s Tool Center Point (TCP) in real time, it helps maintain accurate bead placement even when nozzle bend, deflection, or wear occurs.

Integrated with the Coherix 3D system, the TCP Locator tool measures the actual nozzle position and transmits offset corrections directly to the robot, enabling closed-loop adjustment without manual recalibration. This reduces downtime while improving process stability and part quality.

How It Works: Real-Time TCP Measurement and Correction

The dispensing nozzle locator system operates through a closed-loop process that aligns the robot’s programmed Tool Center Point (TCP) with the actual nozzle position:

• Measure: Inline 3D sensing captures the actual position of the dispensing nozzle during operation
• Compare: The measured position is evaluated against the programmed TCP to detect deviation
• Correct: The TCP correction system calculates a positional offset and transmits it to the robot controller
• Adjust: The robot path is updated to align with the measured nozzle position

This automated process maintains dispensing accuracy throughout production without manual TCP recalibration, supporting consistent performance and reduced downtime.

Key TCP Calibration Capabilities

• Inline 3D Nozzle Position Measurement: Uses integrated 3D sensing to capture the actual position of the dispensing nozzle during operation
• Automated TCP Correction: Calculates and applies positional offsets to align the robot’s Tool Center Point with the measured adhesive nozzle position
• Closed-Loop Process Control: Continuously updates robot positioning based on real-time measurement data to maintain alignment throughout production
• Tolerance-Based Deviation Monitoring: Alerts operators when nozzle position exceeds user-defined limits for proactive maintenance
• Support for Flexible and Small-Gauge Nozzles: Maintains accuracy in applications where nozzle bend or deformation is common, including 2K dispensing systems

System Integration

The Coherix 3D TCP Locator™ system is designed to operate as an integrated component of the Coherix 3D dispensing system, enabling seamless communication with the robot controller for automated TCP adjustment.

Installed within the dispensing cell, the system works inline with existing processes and is designed to integrate with a wide range of industrial robot platforms, supporting consistent operation without manual TCP adjustment.

Key Benefits

• Consistent Bead Placement: Maintains accurate dispensing even when nozzle alignment changes during production
• No Manual TCP Recalibration: Eliminates the need for manual dispensing nozzle adjustment, reducing operator involvement and setup time
• Reduced Scrap and Rework: Minimizes positional errors that can lead to defective parts and material waste
• Improved Process Stability: Maintains consistent performance despite nozzle wear, bend, or deflection
• Increased Uptime: Reduces interruptions associated with adhesive nozzle changeover and recalibration
• Supports High-Tolerance Applications: Enables reliable dispensing in processes requiring tight positional accuracy

Common Applications

The Coherix 3D TCP Locator™ tool is well-suited for robotic dispensing applications where nozzle alignment and positional control are critical:

• 2K Adhesive Dispensing: Maintains alignment in mixing tubes where nozzle movement and deformation are common
• Micro-Dispensing: Supports consistent positioning in high-tolerance applications requiring precise material placement
• Automated Assembly: Helps maintain consistent dispensing performance across varying parts and production conditions
• Sealing and Bonding: Reduces the risk of positional errors that can impact seal integrity and product quality

Request a Quote or Speak with an Expert

Looking to improve dispensing consistency and reduce manual TCP adjustment? Contact our team to discuss your application and determine the right configuration for your process. Request a quote or speak with a dispensing specialist.