What is the difference between a machining center, an engraving and milling machine, and an engraving machine? I believe that many friends who have just joined this circle will ask this sentence, and then they don’t know much when buying machinery and equipment, and they don’t know how to distinguish them. What should I buy? This kind of equipment can meet its own needs. Today we will discuss the differences between the three.

Engraving and milling machine:

As the name implies, it can be engraved or milled. On the basis of the engraving machine, the power of the main shaft and the servo motor, the bearing capacity of the bed, and the high speed of the main shaft are also maintained. The engraving and milling machine is also developing at a high speed, generally called a high-speed machine. It has a stronger cutting ability and very high machining accuracy. It can also directly process materials with a hardness above HRC60. It is widely used in the roughing and finishing of precision molds and mold cores at one time. , Mould copper electrodes, batch processing of aluminum products, shoe mold manufacturing, fixture processing, and watch eye industry. Due to its high cost performance, fast processing speed and good finish of processed products, it occupies an increasingly important position in the machine tool processing industry.

CNC machining center:

Hong Kong, Taiwan and Guangdong are also known as computer gongs. The characteristics of machining parts on the machining center are: after the machined parts are clamped once, the CNC system can control the machine tool to automatically select and replace tools according to different processes; automatically change the machine tool The spindle speed, feed rate, the movement path of the tool relative to the workpiece and other auxiliary functions, continuously and automatically perform multi-process processing such as drilling, countersinking, reaming, boring, tapping, and milling on each machining surface of the workpiece.

Since the machining center can centrally and automatically complete a variety of processes, it avoids human operation errors, reduces workpiece clamping, measurement and machine tool adjustment time, as well as workpiece turnover, handling and storage time, greatly improving machining efficiency and machining accuracy. , so it has good economic benefits. Machining centers can be divided into vertical machining centers and horizontal machining centers according to the position of the spindle in space.

Engraving machine:

The torque is relatively small, and the spindle speed is high, which is suitable for the processing of small tools. It focuses on the "engraving" function and is not suitable for large workpieces with strong cutting. At present, most of the products on the market under the banner of engraving machines are mainly for processing handicrafts, and the cost is low. Due to the low precision, they are not suitable for mold development; engraving and milling machines, machining centers. In terms of the index data of the engraving machine, the maximum spindle speed (r/min): is 8000 for the machining center; 240,000 for the most common engraving and milling machine, and 30,000 for the high-speed machine; but it is not a general electric spindle but an air-floating spindle.

Specifically reflected as:

Spindle power: The machining center is the largest, ranging from several kilowatts to tens of kilowatts; the engraving and milling machine is second, generally within ten kilowatts; the engraving machine is the smallest.

Cutting amount: The machining center is the largest, especially suitable for heavy cutting and roughing; the engraving and milling machine is second, suitable for finishing; the engraving machine is the smallest.

Speed: Because the engraving and milling machine and the engraving machine are relatively light, their moving speed and feed speed are faster than that of the machining center, especially the high-speed machine equipped with a linear motor that can move up to 120m/min.

Accuracy: The accuracy of the three is about the same.

Conclusion

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