high speed vertical machining centers have a high dynamic style. The price of the column CNC machining centers is relatively expensive. The production and processing cost of high speed vertical machining centers is much higher than that of traditional CNC lathes, which requires that certain effective measures must be taken to greatly reduce the processing time for mass parts production.

1. Reducing the production and processing time of spare parts includes two aspects. On the one hand is the development trend of new tool materials. The cutting parameters are doubled, which greatly shortens the drilling time; on the other hand, the software of the automatic tool change system speeds up the actual operations such as clamping and switching, and greatly reduces the auxiliary time. This strategy greatly improves the production efficiency and achieves good economic benefits. However, it also significantly increases the load and runtime of CNC lathes. This is fully considered when designing the structure of the CNC machining center. Therefore, the closed box structure is generally adopted for the basic large parts, the ribs are effectively arranged, the tactile style of each part is improved, and the static style of high speed vertical machining centers is reasonably improved. In addition, adjusting the mass of prefabricated components is likely to change the natural frequen cies of the system software. Increasing friction resistance can improve the friction resistance characteristics of CNC lathes, which is a reasonable countermeasure to improve the dynamic style of CNC lathes.
2. It has static bending stiffness. The structural bending stiffness of CNC lathe bed, slide rail, operating table, cutter head, and spindle bearing box will endanger its own geometric accuracy and the cause of deviation caused by deformation. All these elements require higher static stiffness of CNC lathes. Vibration during the entire bending drilling process not only immediately damages the machining accuracy and process performance of the part, but also continuously reduces the service life of the CNC inserts, jeopardizing production efficiency. CNC machining centers are also continuing to work. During the production process, the durability of the tool and the geometric changes of the CNC tool geometric points are adjusted so that the possibility of eliminating or reducing vibration is very low, so we must improve the dynamic bending stiffness of the CNC machining center .
3. Less thermal deformation. High speed vertical machining centers are damaged by internal and external heat sources such as drilling heat and friction heat during production and processing. Each part will produce different degrees of thermal deformation, which endangers the machining accuracy of the product workpiece . Since the spindle bearing speed ratio, cutting speed and drilling volume of the CNC machining center are higher than those of the traditional CNC lathe, and the whole process automation technology of the machining process is often continuous production and processing, the heat generated thereby also heats up. Take measures such as water cooling, heat dissipation, and cold purchase; improve the structure of CNC lathes, so that the thermal deformation of prefabricated components occurs in sensitive directions without deviation. For example, the vertical rod of the vertical CNC machining center adopts a rod-type double-rod structure, which is symmetrical up and down. Therma l deformation results in a translational transformation from the ascending direction to the centerline of the spindle bearing. It can be compensated by coordinate adjustment to minimize burning and isolating pyrogens from the server.
4. The friction of the moving parts is small, and the clearance of the transmission device is eliminated. The offset of the console of high speed vertical machining centers is in a single pulse particle amount as a small unit. In the case of tool setting , the console still moves at a very low speed. Therefore, it is stipulated that the operating table can accurately respond to the instructions issued by the CNC machine tool equipment, which is related to the friction characteristics of the fitness moving parts. The CNC machining center adopts the flipping slide rail, and the rolling friction between the flipping slide rail and the negative pressure slide rail is small. In addition, under the action of grease, their sliding friction decreases with the increase of adaptive motion speed, thus reasonably preventing low -speed crawling, thereby gradually improving the adaptive motion stability and precision level of CNC machining centers. The selection of the ball screw instead of the drag b all screw in the cutting system software is also based on the same principle. In addition, single-pulse compensation equipment is used for pitch compensation to cut off the gap.