Description of the difference between the most pop

2022-08-13
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Description of the differences between engraving and milling machines, engraving machines and machining centers

engraving and milling machines are very similar to engraving machines and machining centers (computer gongs) in appearance and structure. The following is a comparative analysis of the three:

Conceptually speaking,

machining centers: Hong Kong, Taiwan and Guangdong are called computer gongs, which are a highly automated multi-function CNC machine tool with tool magazine and automatic tool change device. The first machining center appeared in the United States in 1958. It can realize the centralized addition of milling, drilling, boring, reaming, tapping and other processes after the workpiece is clamped once, making the measurement data inaccurate, and the function emphasizes "milling". Engraving machine: its spindle speed is high, which is suitable for the processing of small tools, and the torque is relatively small. It focuses on the "engraving" function, such as wood (wood engraving machine for special processing of wood), two-color board, acrylic board and other plates with low hardness, which are 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; But there are exceptions, such as wafer engraving machines. Carving and milling machine: as the name suggests. It can be carved or milled. On the basis of the carving machine, the above is the relevant introduction of the functional characteristics of the cast aluminum alloy hydraulic universal experimental machine - He Rui (Technical Manager) spindle, servo motor power, bed bearing capacity, while maintaining the high speed of the spindle, and more importantly, high precision. Engraving and milling machines are also developing at a high speed, which is generally called high-speed machines. They have stronger cutting capacity and very high machining accuracy. They can also directly process materials with hardness above HRC60 for one-time molding

in terms of appearance volume,

the machining center has the largest volume. The volume of large 1690 machine is 4m*3m, and that of small 850 machine is also 2.5m*2.5m; Engraving and milling machines take the second place, and the relatively large 750 machine is generally 2.2m*2m; The engraving machine is the smallest

in terms of mechanical structure,

machining centers generally adopt cantilever type, carving and milling machines and carving machines generally use gantry structure, and gantry type is divided into pillar type and fixed beam type. At present, carving and milling machines are mostly fixed beam type

in terms 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 machining 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 amount: 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 light, 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. In terms of processing size, the workbench area can better reflect this. The smallest workbench area (unit: mm, the same below) of domestic processing center (computer gong) is 830*500 (850 machine); The largest workbench area of the engraving and milling machine is 700*620 (750 machines), and the smallest is 450*450 (400 machines); Generally, the engraving machine will not exceed 450*450, and the common one is 45*270 (250 machine). Speaking from the application object: the machining center is used to complete the processing equipment of workpieces with large milling volume, large molds, materials with relatively high hardness, and it is also suitable for the roughening of ordinary molds; Engraving and milling machine is used for finishing small milling quantity and small mold, which is suitable for processing copper, graphite, etc; The low-end engraving machines prefer to process wood, two-color board, acrylic board and other plates with low hardness, while the high-end engraving machines are suitable for polishing chips, metal shells and so on

it is generally believed that

machining centers and engraving and milling machines can be used as both products and molds, while engraving machines can only be used as products. Tool magazine: machining center. If there is a tool magazine, it is the machining center. If there is no tool magazine, you should also consider whether the oil is too thin or too dirty for computer gongs or CNC milling; Carving and milling machines are generally not equipped with a tool magazine. Even if the tool magazine is selected, it is also an umbrella tool magazine with 12 knives, or an in-line tool magazine with 6 knives; There is no magazine for carving

in foreign countries, there is no term of CNC engraving and milling machine at all. Strictly speaking, engraving is a part of milling, so there is only the concept of machining center in foreign countries, and the concept of small machining center is derived to replace engraving and milling machine. Whether to buy an engraving machine or a CNC milling machining center often depends on the actual production needs. In addition, there is currently a popular high-speed cutting machine tool (hscmachine), which is called high-speed machine in China

let's first figure out the differences between the three models:

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 reduce the grinding volume after milling to the lowest processing equipment

in depth analysis of the structure of the above equipment can help us make the right choice

what I said upstairs is very detailed. In addition, I think the price of the machine is also different from the processing materials and processing accuracy. In short, it is to meet different needs

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