Developing of teaching experiment system for dynamically observing and measuring to cutting process

摘要

A teaching experiment was developed to observing and measuring to cutting process, to improve the teaching performance of the "fundamentals of mechanical manufacturing technology" course. The experiment is carried out on a column milling machine tool; the cutting tool is fixed on the overarm; the board type workpiece is fixed on the worktable. Under the planning fashion at low cutting speed, a CCD microcamera was used to screen from tool orthogonal plane and the orthogonal cutting process can be observed on the display. A transducer was applied to change the speed of worktable with stepless regulation, and the methods of machine tool circuit rebuilding and transducer using were mentioned. So did the buildup of CCD microcamera. The intuitionistic observing to cutting process can be obtained in the experiment, and it can be measuring for rake angle, clearance angle, shear angle, cutting layer and chip thickness, and then the deformation coefficient can be calculated. To the experiment of dynamically observing and measuring to cutting process, the operation is simpleness; the teaching performance is evident; the students feedback is preferably; and the extend value is significant.