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Hexapod 6-Axis Alignment System Provides Flexibility in Dimensional Measuring Machine in Automotive Applications

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The ever higher demand on the performance of headlights in automobiles drives automation and precision requirements of suppliers. A novel compact dimensional measuring machine designed by the DYMACO Group now makes use of 6-axis parallel positioning and alignment system to provide more flexibility for in-line automated dimensional measuring of headlamps in the Automotive Industry.

Custom Hexapod automates metrology processes in the DM401 DYMACO Dimensional Measuring Machine (Image: Dymaco)
Custom Hexapod automates metrology processes in the DM401 DYMACO Dimensional Measuring Machine (Image: Dymaco)

The system uses specific measurement points for initial calibration based on CAD data of the lamp. The lamp is picked from the production line and placed inside the inspection machine onto the hexapod 6-axis positioning system. The sample is adjusted quickly inside the machine to any defined position in 6D space with precision in the micron-range. This is a fully automated metrology process according to the calibration data.

PI hexapods allow the user to change the center of rotation and coordinate system with a simple software command (Image: PI)
PI hexapods allow the user to change the center of rotation and coordinate system with a simple software command. (Image: PI)

H-820 Hexapod Parallel Positioning System (Image: PI)
H-820 Hexapod Parallel Positioning System (Image: PI)

The motion engine of the DM401 Series Inspection Machine is based on a customized H-820 Hexapod.

DYMACO Dimensional Measuring Machine (Image: Dymaco)
DYMACO Dimensional Measuring Machine (Image: Dymaco)

Flexibility for Automated Production Processes

Due to the versatility of the parallel kinematics design with user programmable center of rotation and coordinate system, as well as its compact dimensions, the machine provides outstanding flexibility for a large variety of samples of in-line automation systems. The DM metrology series excel in their high flexibility, reliability, simplicity, compact design, and easy programmability. Their high accuracy combined with high speed make the DM401 Series the ideal choice for automating inspection applications.

 Parallel Kinematic Machines (PKM)

Video: Different Types of Hexapods
Video: Different Types of Hexapods

Video Setup and Operation of a Hexapod >
Video: Setup and Operation of a Hexapod

In a parallel-kinematic multi-axis system, all actuators drive only one single platform resulting in extremely low moving mass (inertia) high stiffness and excellent dynamics and step/settle performance with high precision. Hexapods provide motion in XYZ and pitch, yaw, roll, and come in different configurations for applications including fiber optic alignment, motion simulation / cancellation, and image stabilization. Load capacities range from 2kg to several tons.

Different hexapod 6-axis parallel positioning and alignment systems (Image PI)
Different hexapod 6-axis parallel positioning and alignment systems (Image PI)

 

> READ more articles on hexapods

> WATCH videos on hexapods and motion simulators

> LEARN more about PI hexapods

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About PI

PI (Physik Instrumente) is a leading manufacturer of precision motion control equipment, piezo motors, air bearing stages and hexapod parallel-kinematics for semiconductor applications, photonics, bio-nano-technology and medical engineering. PI has been developing and manufacturing standard & custom precision products with piezoceramic and electromagnetic drives for 4 decades. The company has been ISO 9001 certified since 1994 and provides innovative, high-quality solutions for OEM and research. PI is present worldwide with fifteen subsidiaries, R&D / engineering on 3 continents and total staff of more than 1,000.

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