CNC machining refers to the production and processing with CNC machining tools, and is a kind of mechanical automation machine tool controlled by a program. The control system can logically handle the program with manipulation code or other symbolic control instructions, with the help of the computer will be decoded, and then make the machine tool operation and parts processing, with the help of CNC tool cutting will be the production of raw material processing into semi-finished finished parts and so on. Medium and large machinery factory in the machining manufacturing to pay special attention to more issues, such as medium and large machinery factory production safety regulations, medium and large machinery factory production process technical regulations, machining manufacturing should be strictly observed in the technical specifications and requirements. In the mechanical processing process issues to pay special attention to the problems are also quite a lot, the following let's take a look at it!
1. When the product workpiece is too high, it should correspond to the choice of different specifications of the knife to open the rough, and then use a small knife to remove the edge of the remaining material.
2. High material hardness should be selected for reverse milling; low material hardness should be selected for smooth milling; finish machining should be selected for reverse milling and finish machining should be selected for smooth milling.
3. mechanical parts processing clamping method to reasonably select the fixed benchmark and clamping method. When we select the fixed benchmark, let us follow the "benchmark unity" and "benchmark overlap" 2 basic principles.
4. Determine the product workpiece on the workbench place, must take into account each place of production processing, CNC tool specifications and CNC tool rigidity on the production and processing of product quality impact.
5. In the machining manufacturing selected tooling fixture, should try to select by the universal parts assembly, and can come to adjust the tooling fixture, can reasonably and effectively reduce the production preparation cycle time.
6. All the surface production and processing as far as possible in a fixed fixture, so it is necessary to select a convenient product workpiece each surface can be produced and processed to the fixed method.
Before CNC processing, the machining center machine operator should select a good production processing solution based on the product workpiece specification accuracy, the size of the skew angle, the look of the CNC tool, the clamping method of the parts and the difficulty level of programming and other elements, combined with the considerations before CNC processing.
