Structure Optimization of Air Bearing for a Coordinate Measuring Machine
Aiming at the model extension requirement of the coordinate measuring machine(CMM)of small range,improvement and optimization of material,installation,mechanical structure and performance parameters etc of the air bearings in the model were studied,in which the existing design experience and new performance requirements were combined.To meet the design and development demands of the CMM of medium or large range,the disadvantages of insufficient bearing capacity and structural stiffness of the existing rectangular air bearing made of aluminum were improved in the optimization procedure.The finite element stiffness analysis and film thickness test of the air bearing was executed,in which the structure optimization of static pressure plane air bearing proposed was verified.
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