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Machining center, carving and milling machine, engraving machine, three of the differences

Jan 05 , 2021

What is the difference between machining center, engraving and milling machine, and engraving machine? I believe this sentence will be asked by many friends who have just joined this circle, and then they don’t understand when buying machinery and equipment, and don’t know how to distinguish between them. What kind of equipment can meet your needs? Today, the editor of CNC expert will show you the difference between the three of them.

Engraving and milling machine:

As the name suggests, it can be engraved and milled. On the basis of the engraving machine, the power of the spindle and the servo motor is increased, and the machine bed endurance is also maintained while maintaining the high speed of the spindle. Engraving and milling machines are also developing at a high speed. They are generally called high-speed machines. They have stronger cutting capabilities and very high machining accuracy. They can also directly process materials with a hardness above HRC60. They can be formed at one time and are widely used for rough and fine machining of precision molds. , Mold red copper electrode, aluminum product batch processing, shoe mold manufacturing, jig processing, watch eye environment industry. Due to high cost performance, fast processing speed, and good finish of processed products, it has become more and more important in the machine tool processing industry

cnc machining center:

The Hong Kong, Taiwan and Guangdong areas are also called computer gongs. The characteristics of machining parts on the machining center are: After the processed parts are clamped once, the CNC system can control the machine tool to automatically select and replace tools according to different procedures; automatically change the machine tool spindle Rotation speed, feed rate, motion path of the tool relative to the workpiece and other auxiliary functions, continuous drilling, countersinking, reaming, boring, tapping, milling and other multi-process processing on each processing surface of the workpiece. Since the machining center can complete a variety of processes intensively and automatically, it avoids man-made operating errors, reduces workpiece clamping, measurement and machine tool adjustment time, and workpiece turnover, handling and storage time, greatly improving processing efficiency and processing 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 the space.

Engraving machine:

The torque is relatively small, and the high spindle speed 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, with low cost. Due to the low precision, they are not suitable for mold development; engraving and milling machines and machining centers. The index data of the engraving machine is compared with the maximum spindle speed (r/min): machining center 8000; the most common engraving and milling machine is 240,000, and the lowest is 30,000; the engraving machine is generally the same as the engraving and milling machine, and the engraving machine used for highlight processing can reach 80,000 , But it is not a general electric spindle but an air-floating spindle.

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

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

Speed: Since the engraving and milling machines and engraving machines are relatively light, their moving speed and feed speed are faster than machining centers, especially the high-speed machines equipped with linear motors move up to 120m/min

Accuracy: The accuracy of the three is similar.

From the processing size:

The workbench area can better reflect this. The smallest worktable area of the domestic machining center (computer gong) (unit mm, the same below) is 830*500 (850 machine); the largest worktable area of the engraving and milling machine is 700*620 (750 machine), and the smallest is 450 *450 (400 machine); engraving machine generally does not exceed 450*450, the common one is 45*270 (250 machine).

From the application object:

Machining center is used to complete processing equipment for workpieces with larger milling volume, large molds, materials with relatively hardness, and also suitable for roughing of ordinary molds; engraving and milling machines are used to complete small milling volume, fine processing of small molds, suitable Copper, graphite, etc. processing; low-end engraving machines tend to process wood, two-color plates, acrylic plates and other low-hardness plates, and high-end ones are suitable for polishing and polishing wafers and metal shells.

There is no term for engraving and milling machine in foreign countries (CNC engraving.milling machine). Strictly speaking, engraving is a part of milling, so foreign countries only have the concept of machining center, and the concept of small machining center is derived from it to replace engraving and milling machine . Buying an engraving machine or buying a CNC milling machining center is a question that you often have to ask yourself, depending on the actual production needs. In addition, there are currently popular high-speed cutting machine tools (HSCMACHINE), which is called high-speed machine in China.

Let us first figure out the difference between the three models:

CNC milling and machining center is used to complete the processing equipment of larger milling workpieces

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

High-speed cutting machine tools are used to complete medium milling volume and reduce the grinding volume after milling to the minimum.

In-depth analysis of the structure of the above equipment and data processing types can help us make the right choice. The article has already talked in detail about the difference between engraving and milling machines, machining centers and engraving machines. I believe everyone should have a certain understanding of these three in their hearts.


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