After the CNC machined workpiece is clamped once on the machining center, the digital control system can control the machine tool to automatically select and replace the tool according to different processes, and automatically change the machine tool spindle speed, feed rate and the movement path of the tool relative to the workpiece and other auxiliary functions. , to complete the multi-process processing on several surfaces of the workpiece in turn. And there are a variety of tool change or tool selection functions, so that the production efficiency is greatly improved.
Due to the centralized process and automatic tool change, the machining center reduces the time for workpiece clamping, measurement and machine tool adjustment, so that the cutting time of the machine tool reaches about 80% of the machine tool startup time (ordinary machine tools are only 15 to 20%); at the same time It also reduces the workpiece turnover, handling and storage time between processes, shortens the production cycle, and has obvious economic effects. The machining center is suitable for small and medium-sized batch production with complex parts shape, high precision requirements and frequent product replacement.
1. The CNC machining center has good machining consistency and economic benefits. Compared with other CNC machine tools, it has the following characteristics:
2. When the workpiece processed by CNC is complex and the process flow is very long, it can eliminate the human interference factors in the process flow, and has high production efficiency and quality stability.
3. Due to the centralized process and the automatic tool changing device, the workpiece can complete the compound processing such as milling, drilling, boring, expanding, reaming, tapping and so on with precision requirements after one clamping.
4. When there is an automatic exchange worktable, when one workpiece is being processed, the other worktable can realize the clamping of the workpiece, thereby greatly shortening the auxiliary time and improving the processing efficiency.