The distinction between fine engraving machine and engraving and milling machine and processing center
Precision engraving machine is able to accurately carve, or milling, in the engraving machine based on the increase of the spindle, servo motor power, bed bearing, while maintaining the high-speed spindle, more importantly, high precision.
Engraving and milling machine: carving and milling machine attention to carving and milling, is between the fine carving machine and processing center between the transition model. Compared with the fine engraving machine, its advantages are stronger rigidity, higher processing efficiency, high power, suitable for soft metal fast, heavy cutting. Compared with the processing center, the advantages are: the processing speed of soft metals such as copper and aluminum is faster, and the finishing speed of steel die is more efficient. Its shortcomings are not suitable for large workpiece rough, heavy cutting. Engraving and milling machine is also developing towards high speed, commonly referred to as high speed machine, which has stronger cutting ability and high machining accuracy. It can also directly process materials with hardness above HRC60, forming at one time.
Processing center: the largest size is 4m*3m for large models and 2.5m*2.5m for small ones. The fine carving machine came next, with the larger type generally at 2.2m*2m. Engraving machine is smallest. Generally use cantilever type, precision carving machine and engraving machine generally multi-use gantry frame, the gantry type is divided into pillar type and fixed beam type, at present the precision carving machine with fixed beam type in the majority. Maximum spindle speed (r/min): processing center 8000; Fine carving machine is the most common 24, 000, high-speed machine minimum 30, 000; Engraving machine is generally the same as engraving and milling machine, the engraving machine used for high-light processing can reach 80,000, but that USES is not the general electric spindle but the air floating spindle.
Spindle power: the maximum processing center, from several kilowatts to several kilowatts; Fine carving machine second, generally within 10 kw; Engraving machine is smallest.
Cutting amount: the largest machining center, especially suitable for heavy cutting, rough cutting; Fine carving machine second, suitable for finishing; Engraving machine is smallest.
Speed: as both the fine engraving machine and engraving machine are relatively light, their moving speed and feeding speed are faster than the processing center, especially the high-speed machine equipped with linear motor moving speed up to 120m/min
Accuracy: the accuracy of the three is similar.
From the application object: the machining center is used to complete the machining equipment of the workpiece with large milling amount, the large mould, the material of hardness comparison, and also suitable for the opening of common mould; Fine engraving machine is used for finishing small milling amount and small mould, which is suitable for processing copper, graphite, etc. The low-end engraving machine is inclined to the processing of wood, two-color board, acrylic board and other plates with low hardness. The high-end machine is suitable for polishing and polishing chip and metal shell.
Type selection: processing center, precision carving machine can do products, also can do mold, engraving machine can only do products.