What types of CNC precision machining centers are there?

The cnc machining center is a high-efficiency automatic machine tool composed of mechanical equipment and numerical control system suitable for processing complex parts. The cnc machining center must be used when machining molds. So, what should be paid attention to when processing molds in CNC machining centers? Let's follow the editor of Shenzhen Ruifeng Xinye to find out.
What should the CNC precision machining center pay attention to when machining molds?
1. Prevent the knife from going straight down. There are two types of flat-bottomed cylindrical milling cutters, one is that there is a top hole on the end face, and the end edge is not in the center.
The other is that there is no top hole on the end face of the CNC machining center, and the end blades are connected and over the center. When milling curved surfaces, an end mill with a center hole must never feed straight down like a drill unless a process hole is pre-drilled. Otherwise, the milling cutter will be broken off. If the end knife without the top hole can be used to feed straight down, but because the blade point of view is too small and the axial force is large, it should also be prevented as much as possible. The best way is to feed the knife diagonally downward, and then use the side edge to cut laterally after entering a certain depth. When milling groove faces, process holes can be pre-drilled for cutting. Although the effect of straight feeding with a ball-end mill is better than that of a flat-bottomed end mill, it is also best not to use this method of cutting because of the excessive axial force that affects the cutting effect.

2. In the milling of curved surface parts, if it is found that the parts data are not well heat treated, there are cracks, and the arrangement is uneven, etc. When the processing is stopped, the processing should be stopped in time to prevent wasted working hours.
3. When milling the complicated surface of the mold cavity, it generally takes a long period of time. Therefore, the machine tool, fixture and tool should be properly checked before each start-up milling to prevent failure in the middle and affect the processing. accuracy, and even the formation of waste.
4. When the ball end milling cutter is milling a curved surface, the cutting speed at the tip is very low. If the ball cutter is used to mill a relatively flat surface straight to the machined surface, the quality of the surface cut by the ball cutter tip is relatively high. Therefore, the spindle speed should be appropriately increased, and cutting with the tool tip should be avoided.
5. When milling the mold cavity, the trimming allowance should be properly controlled according to the roughness of the machined surface. For the parts that are difficult to be milled, if the surface roughness of the machining is poor, more margin for repairing should be left appropriately; and for the easy-to-machine parts such as planes and right-angle grooves, the surface roughness value should be reduced as much as possible to reduce the repairing work. to prevent the accuracy of the cavity surface from being affected by large-area repairing.

CNC machining center, also known as CNC machining center, CNC machining center is a kind of tool with a tool magazine and can automatically replace the tool, and the workpiece can be within a certain range. A CNC machine that performs a variety of machining operations. The characteristics of machining parts on the machining center are: after the machined parts are clamped once, the CNC system can control the machine tool to automatically select and replace the tools according to different procedures; actively change the machine tool spindle speed, feed rate and the movement track of the tool relative to the workpiece And other auxiliary functions, continuously and actively carry out multi-process processing such as drilling, countersinking, reaming, boring, tapping, milling, etc. on each processing surface of the workpiece.

What types of CNC machining centers are there? The types of CNC machining centers on the market are basically based on the stroke. The type is different, and this is also different from other manufacturers. This is determined according to a naming rule of the manufacturer for its own machining center. There is no unified specification, but the mold and machine tools are generally distinguished according to the stroke mentioned above, such as 850 Machining center, which means that the stroke of this machining center is 800*500*500.
What types of CNC machining centers are there? I believe we have a certain understanding here.

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