Vertical machining centers often have various problems in actual processing and production. In order to better improve the processing efficiency and ensure the processing quality, this paper summarizes the common problems of vertical machining centers, and gives effective improvement methods to debug the cutting speed, feed and cutting depth more accurately.
Common problem 1: Overcutting of workpieces
The external cause of workpiece overcut is often insufficient tool strength or inappropriate size, and the internal cause may be improper operation, improper setting of cutting parameters, uneven setting of cutting allowance, resulting in excessive tolerance, and z eventually leads to over-cutting of the workpiece, resulting in machining error.
To solve this problem, when adding the corner clearing program, the allowance should be as uniform as possible, the tool should be used as much as possible, and the SF function of the vertical machining center should be used to fine-tune the degree and gradually achieve the best cutting effect.
Common problem 2: Point of inaccuracy.
Alignment is the step in which the machining center determines the origin. It can be said that any operation with a machining center is inseparable from this step. In addition to inaccurate operator manual operation, burrs around the mold, non-vertical edges, and magnetism to the centering rod can all lead to inaccurate alignment.
Before the mold is centered, the centering rod should be demagnetized; Manual operation should be checked repeatedly, trying to keep it at the same point and the same height. Check whether the four sides of the mold are vertical by periodic calibration.