What is the difference between CNC machining center, engraving and milling machine and engraving machine? Today, I'll grill for you.

Carving and milling machine

As the name suggests, it can be carved or milled. On the basis of the carving machine, the power of the spindle and servo motor is increased, and the bearing capacity of the bed is increased, while maintaining the high speed of the spindle. Engraving and milling machines are also developing at a high speed, generally known as high-speed machines. They have stronger cutting capacity and very high machining accuracy. They can also directly process materials with hardness above HRC60. They can be formed at one time. They are widely used in precision mold kernel rough and finish machining at one time, mold copper electrodes, batch processing of aluminum products, shoe mold manufacturing, fixture processing, and clock and watch eye industry. Due to its high cost performance, fast processing speed and good finish of processed products, it plays an increasingly important role in machine tool processing industry.

CNC machining center

The characteristics of machining parts on the machining center are: after the machined parts are clamped once, the numerical control system can control the machine tool to automatically select and replace tools according to different processes; Automatically change the spindle speed, feed rate of the machine tool, the motion track of the tool relative to the workpiece and other auxiliary functions, and automatically carry out multi process processing such as drilling, spot facer, reaming, boring, tapping, milling, etc. on each machining surface of the workpiece continuously.

Because the machining center can centrally and automatically complete a variety of processes, it avoids artificial operation errors, reduces the time of workpiece clamping, measurement and machine tool adjustment, as well as the time of workpiece turnover, handling and storage, and greatly improves the 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 "carving" function and is not suitable for large workpieces with strong cutting. At present, most products in the market under the banner of engraving machine are mainly for processing handicrafts, with low cost. Due to low precision, they are not suitable for mold development.

Model difference

1. CNC milling and machining center is used to complete the processing equipment of workpiece with large milling volume.

2. CNC engraving and milling machine is used to complete small milling volume, or soft metal processing equipment.

3. High speed cutting machine tools are used to complete medium milling volume and minimize the grinding volume after milling.

4. In depth analysis of the above equipment structure and data processing type can help us make the right choice.

Comparison of index data

Maximum speed of spindle (r/min)

Machining center 8000; Carving and milling machines are the most common 240000, and high-speed machines are at least 30000; The engraving machine is generally the same as the engraving and milling machine. The engraving machine for highlight processing can reach 80000, but it uses an air floating spindle instead of a general electric spindle.

Spindle power

The processing center is the largest, ranging from several thousand watts to dozens of kilowatts; Engraving and milling machines take the second place, generally within 10 kW; The engraving machine is the smallest.

Cutting quantity

The machining center is the largest, especially suitable for heavy cutting and roughening; Engraving and milling machine is second, suitable for precision machining; The engraving machine is the smallest.

Speed

Because the engraving and milling machine and engraving machine are relatively lightweight, their moving speed and feed speed are faster than those of the machining center, especially the high-speed machine equipped with linear motor, whose moving speed is up to 120m / min.

Accuracy

The accuracy of the three is similar.

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