Draai- en freesbewerking van prismatische onderdelen

The machining center performs multi-process (draaien, frezen, boren, saai, tikken, enz.) and multi-face composite processing on prismatic parts through automatic tool change and table indexing. Practice has proved that the composite machining center is indeed beneficial to solve the shortcomings of long delivery time, low resource utilization, more products in process and slow capital turnover of small and medium-sized machinery manufacturing enterprises. Turning and milling combined processing has thus gained more and more common applications in industrial production.

CNC machining of prismatic parts

After that, the spindle head of the CNC machining center was automatically rotated 90 degrees to convert the vertical and horizontal modes. The CNC machining center can not only process the 4 sides of the box part, but also process the 5th surface-the top surface. Als gevolg, the so-called 5-face machining center has been introduced, which can also be regarded as an improvement in the composite processing function of the machining center. In de afgelopen jaren, with the price reduction and popularization of 5-axis linkage CNC equipment and programming software, 5-axis linkage (or multi-sided) machining centers have become a new hot spot in the recent international machine tool exhibition. Recently, a machining center was introduced, which can mill and drill the 6 faces of the bar in one clamping. The CNC machining center for bar materials is a new development of multi-faceted compound machining capabilities.

In terms of composite processing of prismatic parts with different processing methods, de huidige in het oog springende trend is de combinatie van freesbewerking en laserbewerking of ultrasone bewerking. Het Duitse bedrijf DMG heeft een paar jaar geleden een laserbewerkingskop aan de hogesnelheidsfreesmachine toegevoegd, en lanceerde de DMU60L (het huidige model is DML60HSC) voor frezen en gecombineerde laserbewerking. De machine is voorzien van een Q-switched YAG laser met een vermogen van 100W, een straaldiameter van 0,1 mm, en een verwerkingsefficiëntie van 20 mm3/min. Na het werkstuk (vooral de schimmel) wordt op deze werktuigmachine geklemd, de hogesnelheidsfreeskop wordt gebruikt om het meeste werk te voltooien, en vervolgens wordt de laser gebruikt voor het afwerken bij het snijden van lagen. Verwijder de freessporen van het profiel en verwerk de fijne delen, inclusief graveerpatronen en patronen.

Harde en broze materialen zoals glas, ceramics, gecementeerd carbide, enz., are difficult to process with traditional techniques. Echter, if high-frequency vibration motion is added to the traditional milling, boren, and grinding processes, dat is, ultrasonic technology is combined with cutting processing technology, the processing efficiency will be significantly improved. The DMS series ultrasonic processing machine tool of DMG company in Germany uses the converter on the spindle to convert the electrical high frequency signal of the ultrasonic generator into 20KHz mechanical vibration motion (longitudinal motion). Then the vibration amplitude is amplified and controlled by the voltage regulator, and then all the vibration is transmitted to the milling cutter, drill or grinding wheel made of diamond particles through the patented Sauer conical tool holder. During the machining process, the tool is continuously tapped on the surface of the workpiece 20,000 times per second to separate the surface material of the part in the form of tiny particles. Not only its processing efficiency is increased by 5 times compared with the traditional method, but also the surface roughness can reach Ra<0.2μm. DMS series ultrasonic processing machine tools have two types: 3-axis linkage control and 5-axis linkage control. The spindle speed is 20～6000r/min, and the tool magazine and automatic tool changer are also optional. So it becomes a machine tool that not only has the function of ultrasonic processing, but also can perform multi-process compound processing such as drilling, frezen, and grinding.