Causes of machining error of Automatic Parts

We also have some errors in our work. Of course, our machinery always takes a nap. But if we find errors in the process of processing, the opposite sex should be corrected in time, otherwise there will be a lot of unnecessary trouble in the later stage. Today’s editor will take you to understand it What are the causes of errors in automatic parts processing?

1. Automatic parts processing: spindle rotation error. The spindle rotation error refers to the variation of the actual rotation axis relative to its average rotation axis at each moment. The main reasons for the radial rotation error of the spindle are: the coaxiality error of several sections of the spindle journal, various errors of the bearing itself, the coaxiality error between the bearings, and the spindle deflection.
2. Guide rail error. The guide rail is the datum to determine the relative position relationship of each machine tool component on the machine tool, and it is also the datum of the machine tool movement. The uneven wear and installation quality of the guide rail are also the important factors causing the guide rail error.
3. Drive chain error. The transmission error of transmission chain refers to the relative motion error between the first and the last end of the transmission chain. The transmission error is caused by the manufacturing and assembly errors of each link in the transmission chain and the wear in the use process.
4. The geometric error of the tool. It is inevitable to change the shape and size of the workpiece in the process of cutting.
5. Positioning error. One is the misalignment error of datum. The datum used to determine the size and position of a surface on the part drawing is called design datum. The datum used to determine the size and position of the machined surface in the process drawing is called the process datum. When machining the workpiece on the machine tool, it is necessary to select some geometric elements on the workpiece as the positioning datum during machining. If the selected positioning datum does not coincide with the design datum, the datum misalignment error will occur. Second, the positioning pair manufacturing error is not accurate.