What Are The Uses of Cross Roller Guides?

Crossed roller guide railis a core mechanical component which can bear multiple directional loads and realize high precision and high rigidity linear motion.

The name comes from its internal "crossed roller" structure. The rollers are arranged at 90 degrees to each other between the V-shaped groove tracks, solving the problem of insufficient rigidity or excessive friction in ordinary guides in high-precision scenarios.

Core features:

High rigidity: the rollers are arranged in a cross, which can bear radial, axial and overturning moments at the same time, and no obvious deformation is seen during movement. It is suitable for equipment with high stability requirements.

High precision: the minimum clearance can be up to 3μm, and the positioning accuracy and repeatability can reach ±1μm, meeting the micrometer-level operation requirements.

Low friction and low wear: the rolling friction coefficient is only 0.001-0.003, much lower than the sliding guide rail, and the rollers are evenly stressed, the service life is 3-5 times longer than the ordinary guide rail.

Compact structure: Compared with the same specification of linear guide rail, the installation space can be saved by more than 30%, suitable for small precision equipment.

Easy installation and maintenance: Many models are modular design, factory preset tension force, user installation is convenient.

Main application areas:

Based on the above characteristics, cross roller guide rail is widely used in fields with high requirements for accuracy, rigidity and stability.

1. Industrial automation and robotics

Industrial robot: used in the joint of the robot, which can not only bear the gravity of the arm, but also bear the moment generated during rotation, ensuring the precision and stability of the robot's movement.

Precision assembly and inspection equipment: In semiconductor, electronic components automatic assembly line and inspection equipment, extremely accurate positioning is required, cross roller guide rail is the ideal choice.

Handling robot: used for its lifting mechanism to lift and lower heavy objects smoothly and reliably.

2. Semiconductor and flat panel display manufacturing equipment

This is the high-end application of crossed roller guide rails. These devices are expensive and require high precision and cleanliness.

Lithography machine: carrying and moving the wafer table, requiring nanoscale motion accuracy and high stability.

Wafer inspection and packaging equipment: in the process of wafer handling, alignment, detection, etc., vibration-free, high precision linear motion is required.

LCD/OLED panel manufacturing equipment: Widely used in glass substrate transfer, coating, and exposure processes.

3. Precision measurement and testing instruments

Three-coordinate measuring machine: as the core moving part, its accuracy directly determines the measurement accuracy of the measuring machine.

Image measuring instrument: carries the camera or workpiece for fast and accurate 2D or 3D measurement.

Optical detection equipment: such as lens detection, surface defect detection and other equipment.

4. Medical equipment

CT scanners and MRI machines: These require a mobile scanning frame or bed with smooth motion, vibration-free operation, and low noise to ensure image quality.

X-ray machine: movement of collimator and detector.

Surgical robot: requires high reliability and accuracy to ensure surgical safety.

Sum up

In a word, the use of cross roller guide can be summarized as: wherever it is needed to achieve ultra high precision and stability of linear or rotary motion under high load and complex stress conditions, it can be seen almost everywhere.

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