Machining center and CNC milling machine

The Computerized Numerical Control Machine (CNC) is a high-efficiency automatic machine tool composed of mechanical equipment and numerical control system, which is used to process workpieces with complex shapes. Processing center is also called computer gong. The machining center is equipped with a tool magazine, which has the function of automatic tool change. It is a CNC machine tool for multi-process processing after clamping the workpiece at one time. The machining center is a highly mechatronic product. After the workpiece is clamped, the CNC system can control the machine tool to automatically select, change the tool, automatically adjust the tool, automatically change the spindle speed, feed rate, etc. according to different processes, and can continuously complete various processes such as drilling, boring, milling, reaming, tapping, etc., thus greatly reducing the workpiece clamping time, measuring and machine tool adjustment and other auxiliary process time. The machining shape is relatively complex, and the accuracy requirements are high, Parts with frequent variety change have good economic effect.

Advantages of machining center

After the workpiece is clamped on the machining center for one time, the digital control system can control the machine tool to automatically select and replace the tool according to different processes, automatically change the machine tool spindle speed, feed rate and the motion path of the tool relative to the workpiece and other auxiliary functions, and complete the processing of multiple processes on several surfaces of the workpiece in turn. It also has a variety of tool change or tool selection functions, which greatly improves the production efficiency.

Due to the concentration of working procedures and automatic tool change, the machining center reduces the time for clamping, measuring and machine tool adjustment of the workpiece, so that the cutting time of the machine tool reaches about 80% of the starting time of the machine tool (only 15-20% for ordinary machine tools); At the same time, it also reduces the turnover, handling and storage time of workpieces 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.

Machining center and CNC milling machine

Like the CNC milling machine, the machining center is also composed of computer numerical control system (CNC), servo system, mechanical body, hydraulic system and other parts.

However, the machining center is not the same as the CNC milling machine. The biggest difference between the machining center and the CNC milling machine is that the machining center has the function of automatically exchanging tools. By installing tools for different purposes in the tool library, the machining tools on the spindle can be changed through the automatic tool changing device in one clamping process, so as to achieve various processing functions such as drilling, boring, reaming, tapping, grooving, etc. The machining center is the real realization; It is a modern tool that can complete multiple processes at one time. It has automatic tool change, automatic speed regulation and automatic feed. It has high machining accuracy, high efficiency and high machine utilization rate. It is especially suitable for machining parts with multiple curved surfaces and complex process.