CNC engraving machines include woodworking engraving machines, stone engraving machines, advertising engraving machines, glass engraving machines, laser engraving machines, plasma, etc.

Engraving machine, laser cutting machine, but basically have similar characteristics. Take advertising engraving machine as an example. From a functional point of view, computer engraving machine can be divided into two categories: low-power engraving machine and high-power engraving machine.

Small power engraving machine refers to the engraving machine with small engraving motor power (generally 80-200W). Because of its small engraving motor power, it can only be used for fine machining with fewer cutting surfaces each time. For example: chest tags, sand table models, surface processing of handicrafts, etc. This kind of engraving machine can not carry out high-power engraving and cutting.

High power engraving machine refers to the engraving machine with engraving motor power above 700W. This kind of engraving machine can not only engrave with low power, but also engrave with high power. For example: making crystal characters, various advertising signs, irregular blanking and molding of plates, processing of artificial stones, etc. Because of its high power, you can cut 30mm thick plexiglass at a time or use a molding knife to perform high-power molding carving.

Working principle of CNC engraving machine

The CNC engraving machine is actually a 3D CNC system, and its working principle is shown in the figure:

A special design and typesetting software is installed in the general microcomputer to design and typeset graphics and characters, automatically generate processing path information, transmit the tool path data to the microcontroller through USB interface or other data transmission interfaces, and the CNC system receives the tool path data, completes a series of functions such as display and user interaction, and then uses a specific algorithm to convert the input path information into CNC information, The controller converts these information into signals (pulse train) driving the stepping motor or servo motor, and controls the cutter feeding of X, Y, Z axes of the engraving machine. At the same time, milling can be carried out to carve out various planar or three-dimensional graphics and characters designed on the computer to achieve engraving automation.

Application field of CNC engraving machine

1. Advertising and gift making industry, which is used to carve various kinds of two-color plate signs, plexiglass, three-dimensional billboards, two-color figure statues, embossed medals, organic plate reliefs, three-dimensional doorhead characters, etc.

2. Model making industry, making sand table models, house models, etc.

3. Mold manufacturing industry, including engraving button relief mold, printing stamping mold, injection mold, stamping mold, shoe mold, etc.

4. Woodware industry, used for the design and production of relief patterns.

5. Circuit making, drilling, milling, etc. in the development of new PCB products.

6. Seal industry, seal carving of various fonts and materials.

7. Electrode engraving on EDM machine tool.

8. Mechanical processing industry, dial and ruler scale.

9. Automobile industry, tire mold, lamp mold and decoration mold processing.

Moreover, with the continuous emergence of various new decorative materials, there are more and more materials that can be used for carving, which makes the CNC carving machine more useful. Therefore, the application scope of the CNC carving machine will continue to expand.

Features of CNC engraving machine

CNC engraving machine is also called CNC engraving machine, which embodies an automatic and mechanized production mode. In terms of processing principle, it is a kind of drilling and milling combined processing. The processing path is calculated by computer through any pattern, font and 3D path designed in CAM software.

As a unique professional technology, CNC engraving machine has the following characteristics in application:

1、 Compared with relevant industries, it has distinctive features in the following aspects

1. Use high-precision high-speed spindle motor

The use of precision high-speed spindle motor is the basic guarantee for high-speed engraving with small tools! The characteristics of high speed precision spindle motor, such as "high speed, high precision, low noise, low vibration, high speed and constant power", ensure that small tools can obtain high cutting linear speed, maintain high rotation accuracy, generate sufficient high-speed cutting force, reduce vibration and jump to break the tool.

2. Combination of artistic surface modeling method and geometric surface modeling method

With the continuous expansion of the application of CNC engraving, "engraving" is no longer just a "finishing touch", but has gradually penetrated into the field of product design and product processing. This requires that "engraving" design tools must have a certain function of surface modeling. What's more, because "engraving" is a unique design method, the shape of multiple products cannot be expressed with accurate numerical functions, depending on the feeling of the designer, Only the mixed modeling of artistic and geometric surfaces can ensure that "carving" can have a more brilliant performance in the industrial field.

3. Combination of precise mapping mechanism and artistic mapping mechanism

"Carving" is an art, and its design tools must provide creative space for designers! When "carving" enters the industrial field, its design tools must also comply with the industrial design principle of "accurate size"!

4. High Speed Engraving Technology and Process with Small Tools

The connotation of "carving" is fine. More than 90% of the work undertaken by "carving" in the industrial field is "powerless" by conventional big knives. It can only be completed by using small knives to carve carefully. Mechanical carvers can use their rich experience and skilled skills to avoid breaking the knives as much as possible, so as to ensure the carving efficiency! CNC engraving is controlled by a computer. The efficient and fine engraving of CNC engraving machines with small tools requires the support of professional CNC engraving processing technologies and processes. This is the current popular "high-speed cutting technology" and the unique "equal cutting technology" of CNC engraving!

2、 CNC engraving machine has the following characteristics on the position control system

1. The position control system has high control accuracy. Numerical control machine tools are often used to process parts of precision machinery. Therefore, stone carving machines have high requirements for the dynamic and static control accuracy of the position control system.

2. The dynamic response of the position control system should be fast, so that the system has a good dynamic tracking performance, and the influence of load disturbance on the system speed should be eliminated as soon as possible.

3. The position control system has high stability, which is the premise of the journey work of the CNC system. It has the structure of the control system.

4. The position control system has high reliability.

3、 Features of CNC Engraving Machine and Its Professional Engraving Software

1. You can input image documents, such as pcx, bmp, jpg, tip, etc., and use the computer for vectorization.

2. It contains 170 kinds of glyphs, which can describe, design and arrange any glyphs and graphics.

3. 3D surfaces can be made from 2D contours, and the surfaces can be overlapped for automatic welding, and any 3D patterns, graphics and characters can be attached for artistic sculpture.

4. The reverse engineering function can receive the point information, generate the corresponding surface, carry out CAD work, and produce the technical path of CAM for processing. If equipped with a laser scanning system, the whole process from sample scanning and mapping to engraving and forming can be completed with high speed and precision.

5. Three dimensional relief, 3D modeling of people, animals and plants. After the image document passes the gray level analysis, the curved surface and relief document can be generated, and the photo stereoscopic carving processing can be carried out.

6. Four axis and five axis machining can be upgraded. With four axes, various embossing wheels can be completed from design to CAD/CAM production.

7. Super hard cutting, ultra-fine word processing.

8. It is compatible with a variety of professional or special processing software, can read ICES, DXF and other data, has a complete tool library, and can generate various high-precision tool paths.

9. Open post processor.