Different types of CNC machine
CNC machine including CNC milling center, CNC engraving machine and high-speed cutting machine tools
1 - CNC milling and milling machining center for the completion of a large amount of workpiece processing equipment
2 - CNC engraving machine used to complete the small amount of milling, or soft metal processing equipment
3 - medium-high speed milling cutting machine used to complete the amount, and after grinding the milling reduced the minimum amount of processing equipment
In-depth analysis of the structure of the device can help us make the right choice:
A, - from the mechanical point of view of the mechanical tool is divided into two parts, moving parts and no moving parts: table, skateboards, and other cruciferous platform for mobile part, bed base, column and other non-moving parts
1 - CNC milling center:
Non-moving part of the requirements of steel moving parts is very good very good steel requirements
Advantages: Can be re-cutting; Disadvantages: As a large part of the same movement, at the expense of machine flexibility, and fast for a small part of the feed powerless.
2 - CNC router
Non-moving part of the requirement of good steel moving parts to a flexible steel for the former title, as far as the lighter, while maintaining a certain degree of rigidity.
Advantages: The process can be relatively small, high precision, high speed for the soft metal can be processed; Disadvantages: poor because the steel is not possible for heavy cutting.
3 - high-speed cutting machine tools
Non-moving part of the requirement of steel is very good mobile part of the steel requirements better, and as much as possible light.
Advantages: Can the small amount of cutting (for example, the general φ10 flat knife, for 45 steel (300) deep depth to 0.75 as well); Disadvantages: can play under the correct use of efficient, low cost, so polished into a very small amount. Improper use, the tool will immediately scrap piles.
How do the above machinery, light, sound and rigid conflicting demands, the key is the effort on the mechanical structure.
1, - muscle using high and low bed with mesh architecture, and some directly within the hexagonal honeycomb-like structure connecting
2, - extra-wide columns and beams, we all know gantry structure because of its excellent symmetry and excellent high-speed steel cutting equipment manufacturers have been as the preferred structure.
3 - For the mobile part of a CNC milling with a significant difference is that a lot of widening the distance between the rail and rail to overcome the problem of bad moments.
4, - speaking from the material that is generally used Meehan cast iron, cast iron is conceived, in pouring molten iron by adding a certain percentage of silicon (Si) thus changing the internal structure of iron, making it more resistant to stamping, there are rigid improved significantly.
5, - mainly used to overcome the rigidity of the machine moving parts move at high speed on the powerful impact of non-moving parts, so the rail, screw requires thicker, and the strengthening part of the rigid connection
