Biaxial precision LinearMotorSytem for ultimate positioning duties of two parallel process sledges

The latest development of KML Linear Motion Technology was designed for a worldwide acting packaging manufacturer. It is a LinearMotorSystem with two parallel operating axles.

The following system requirements were defined by our customer:

• high rigidity of the complete system
• maintenance-free system
• highest positioning accuracy of the sledges to each other
• therefore it is necessary to avoid yawing, racking and pitching under all circumstances
• highest guidance accuracy
• high parallelism of the two axis
• plug and play solution
• acceptance and service of the axis at the customers facilities

Solution

KML was able to reach the customers performance specifications with the following constructive details and technical measures:

• 2-parts granite block as a baseplate for the system
• IKO precision linear ways with a special lubricant concept
• elaborated material selection
• mass and rigidity optimized sledge-construction
• structure by FEM constructed and optimized
• acceptance of guidance accuracy with laser interferometers
• use of accessory like energy chain and special cables
• KML running tests with user-specific duty cycles

Basic data

Peak force : 560 N
Acceleration: 16 m/s²
Positioning accuracy:10 µm / 1000 mm
Moved mass: 11,5 kg