Engraving machine is also called high-precision engraving machine. The precision engraving machine is a CNC milling machine using small cutters, high-power and high-speed spindle motors. There is no concept of engraving machine in foreign countries. They mainly use machining centers (computer gongs) to process molds. However, machining centers have their own shortcomings, especially when small tools are used to process small molds, and the cost is very high.
At the beginning of China, only the four axis precision engraving machine of the CNC engraving machine was transferred. The advantages of the engraving machine were carving. If the hardness of the processing materials was relatively high, it would be powerless. The emergence of the engraving machine can be said to fill the gap between the two. Engraving machine can not only carve, but also milling. It is a highly efficient and high-precision CNC machine tool. Engraving machines, precision engraving machines and engraving milling machines work on the same principle. They are driven by X, Y and Z axes, and the movement is controlled by an electronic controller. But the workmanship is different. The carving and milling machine requires high precision, and the precision and materials used for each processing part are of high standard! Although engraving requires less precision than engraving and milling machines, people intuitively feel that the small format is the four axis engraving and milling machine transfer machine, and the large format is the engraving and milling machine, or called the chisel, router, or simply called the large engraving machine. In fact, they are two kinds of machines with different structures. In terms of purposes: engraving machines are mainly used to engrave plates. They are widely used in the transfer of two-color plates or acrylic engraving four axis precision engraving machines. The depth of feed for one engraving is about 1 mm - 3 mm. They are widely used in signs and signs.
In terms of mechanical structure, the engraving machine is designed to be light, with fast X and Y axis movement speed, and short Z axis travel. The four axis precision engraving machine is suitable for engraving materials of 5mm to 8mm. The carving spindle head is equipped with a spring nose, which is used to flatten the thin plates below 3mm in the carving process. The engraving spindle is connected to the motor with a larger diameter through a belt to increase the speed, so that the quality of the work piece carved by the four axis precision engraving machine is more smooth. The carving tool used is relatively long, with a length of about 15.9cm and a diameter of about 4.35mm. Due to the design constraints, it is suitable for high speed engraving process with small cutting amount.
The engraving and milling machine can be transferred to the four axis precision engraving machine, which is understood to be capable of both fine engraving and cutting and milling. For example, for 3D carving, although the drop is large, the 200mm wide material can be completed at one time, and the amount of feed at one time is quite large. The diameter of the cutters available for the engraving and milling machine ranges from 1mm to 16mm, and the length of the cutters is 50 to 80mm. We can use it flexibly. We can use a thin knife to do fine work and a thick knife to do big work. Because the machine design pays attention to heavy load, the rigidity of the frame is large, and the Z-axis stroke is large, it can not only be used for small engraving machines, but also can cut thick plates at high speed. The one-time feed can reach 20mm - 30mm, which is a process manufacturing that engraving machines can not do.
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