1. Machining of mold sidewalls
For the machining of the side wall of the mold, the length of the tool used in the 3-axis machining center is larger than the depth of the side wall. The length of the tool is also determined by the depth of the side wall. If the length of the tool is increased, the strength will be significantly reduced. If the length of the tool is higher than 3 The double diameter allows the knife phenomenon to occur and the quality of the workpiece will be difficult to guarantee. If the five-axis machining center is used to machine the sidewall of the mold, the spindle or the workpiece can be oscillated to make the tool and the side wall of the mold appear vertical. When milling the side wall of the mold, a face milling cutter can be used, which can improve the workpiece quality. And extend the life of the tool.
2. The mold is flat surface processing
When machining a flat surface with a flat mold, the three-axis machining center needs to be finished with a ball cutter to obtain a good surface quality. In this case, the tool path needs to be increased, but the center rotation speed of the ball-end cutter tool is almost zero. When the mold is processed, the degree of damage to the tool is large, the service life of the tool is shortened, and the surface quality of the mold is also deteriorated. Applying a five-axis machining center to machine a flat surface, the workpiece can be machined at a certain angle on the workpiece, which can increase the relative line speed between the workpiece and the ball-end knife, which not only can make the tool life Improve, the surface quality of the workpiece will also be greatly improved.
3. Processing the irregular surface of the mold
For the machining of molds with irregular curved surfaces, it has been generally done by a three-axis machining center. The cutting direction of the tool cutting tool is not changed when the cutting process moves along the entire path of the cutting, and the cutting edge state of the tool is changed. The perfect quality of all parts of the mold cannot be guaranteed. Molds with deeper curvature changes and deeper grooves can be machined through a five-axis machining center. Cutting tools always optimize cutting conditions, and tools can maximize the direction of motion of the entire machining path. While the tool is also capable of linear motion at the same time, each part of the surface of the mold will be perfect.
4. Machining of different geometric shapes of the mold
When applying a five-axis machining center to a mold with a three-dimensional curved plane, the cutting of the mold is always protected in an optimal working state, and the working angle of the tool can be changed in any area of the machine tool to complete the geometric mold. machining.
5. Machining of inclined holes on the inclined surface of the mold
When machining the inclined hole of the mold bevel, the five-axis machining center can be used to position the spindle in the aspect of the inclined surface of the workpiece by the swinging operation of the oscillating machine tool and position it in the accurate hole position. In order to accurately machine the oblique hole on the mold, at least two linear axis interpolation movements are required, and the accuracy of the hole position is also significantly reduced in this process. Machining the oblique face, such as the five-axis machining center with the pendulum, the action is to place the inclined surface of the mold at the position perpendicular to the main axis through the machine table, and the processing of the single moving inclined hole of one of the linear axes can be completed. Improve the accuracy of the hole.
In short, in the mold processing, the application of the 5-axis machining center can avoid the interference of the tool, and can process the complicated parts that are difficult to be machined by the ordinary three-coordinate machine tool. For the processing of the ruled surface mold, the side milling type one-tool forming technology can be used. The processing quality is good and the efficiency is high. For the three-dimensional profile, especially for large flat surface machining, it can be processed by the large-diameter end mill end close to the large surface, the number of passes will be reduced, the residual height will be small, and the processing efficiency and surface quality can be effectively improved. . The multi-step and multi-face machining can be performed on a plurality of space surfaces of the mold at one time, so that the processing efficiency is improved, and the accuracy of the mutual position of each surface can be effectively improved. When machining a mold with a five-axis machining center, the tool can always be in the most effective cutting state for the workpiece. In some machining fields, large-sized tools can be used to avoid mutual interference. Preferably, both machining accuracy and machining efficiency can be improved. Therefore, the five-axis machining center has a wide processing adaptability and is worthy of widespread promotion.
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