The quality of precision shaft piston rod mainly involves three aspects.

On the one hand is the problem of material structure, on the one hand is the choice of benchmarks, on the other hand is the use of technology. The relationship between these three factors and the quality of piston rod needs further analysis. If the straight line optical axis is not disassembled according to the specifications, dust, impurities, etc. are likely to take this opportunity to mix into it, resulting in the installation accuracy of the straight line optical axis decreased. This is also the place where we should remind you that the demolition of a straight optical axis requires professional operation. Precision axis
From the structural point of view, the piston rod is very simple, there will be docking marks on the upper surface of the docking end of the linear slideway, as long as the two ends with the same docking marks can be joined together, and the docking position of the paired slideway can be staggered, so as to avoid bad accuracy caused by different slideways from the bed to the docking point.
Besides, the key is to ensure the stability of the frame. But its main role will directly lead to structural differences, such as its diameter and length in the size of a large difference, so that the whole structure is very poor. The datum is related to the piston rod in the position of the nature, when the piston rod processing, the general will choose the center hole positioning method to determine the basis, but its accuracy will also have coarse and precise points.