Five-axis machining technology can quickly enhance machining efficiency in mold manufacturing and processing, which is generally reflected in the following points:
(1) Clamping parts at one time can complete most of the processing;
(2) The local area has a higher machining accuracy and the machining time is short;
(3) As the number of difficult-to-process parts decreases, the number of electrodes is reduced, and the mold production cycle is shortened.
The shape of the part itself determines its processing method. Therefore, before programming, the shape and processing technology of each part of the part should be analyzed to ensure the selection of part tools and the form of the part to reduce the secondary clamping and secondary processing.
The five-axis machining technology can perform multiple tasks at the same time by changing the cutting tool and changing the swing angle of the tool or workpiece in the process of clamping parts at one time. In the contact between the tool and the workpiece, the cutting is carried out in the high-speed rotation of the tool, so as to achieve the expected cutting effect.
The contact angle of the tool and the surface of the workpiece is different, and the cutting principle followed is also different, and the final cutting quality is naturally different. In flat smooth knife and side edge cutting, the workpiece and the tool are in a form of surface contact. Compared with point contact, its processing quality and efficiency are better, which effectively reduces the workload of the part surface polishing process.
In the process of using three-axis machining, the "bevel" processing form is generally selected, so that there is only one contact point on the surface of the ball knife and the part, which cannot guarantee the processing efficiency, and there is a "residual height" between the two toolpaths. There is a lot of work to do in polishing.
In the same area, five-axis machining is used. After positioning, the surface to be machined and the tool axis remain vertical. Using the cutting method of a flat wide knife, the tool and the workpiece are in surface contact, which not only achieves high machining efficiency , It also prolongs the service life of the tool, and there will be no "residual height" between the tool paths, and a higher surface quality can be obtained; moreover, by changing the tool, using the machine tool's own accuracy, it can also complete part of the fine boring and grinding , Polishing and other processes, in the follow-up work, only simple polishing is needed.
It can be seen from the above analysis that the application of five-axis machining technology to the production process of mold parts can not only improve the machining accuracy of parts, but also reduce the workload of part polishing and shorten the cycle of producing molds. However, in many aspects, processing The machine tool and programming work puts forward new requirements on the relevant staff, requiring them to have a comprehensive understanding of the five-axis machining technology and be able to operate the corresponding software proficiently.