In the machining process of shaft parts, it is crucial to choose a suitable positioning datum. So, what are the most commonly used positioning datums in the processing of shaft parts?
First of all, there is the "center hole". As the "big brother" of the machining and positioning benchmark of shaft parts, the center hole has a pivotal position. The center hole not only ensures that the workpiece remains stable during machining, but also improves the overall quality of the workpiece.
In addition to the center hole, the "outer circle" is also used as a positioning reference for shaft parts. The external positioning datum is mainly used in the turning and grinding process to ensure that the workpiece remains stable during the machining process and at the same time improves the machining accuracy.
Of course, in addition to the center hole and outer circle, the "two end faces" are also used as positioning datums when machining shaft parts. The two-end face positioning datum is mainly used in the milling and grinding process to ensure the stability and accuracy of the workpiece during the machining process.
To sum up, the most commonly used positioning datums for shaft parts are center holes, outer circles and end faces. Each of these positioning datums has its own merits, but the purpose is to ensure the stability and accuracy of the workpiece during machining. Therefore, when machining shaft parts, it is necessary to choose the right positioning datum!