Three-dimensional CAD mold designer practical skills: 3D How to quickly split the mold

In the three-dimensional CAD mold design, the parting mode is a very key process, not only test the professional and technical level of the mold designer, but also test the three-dimensional design software operating ability, the reasonable parting surface directly affects the mold structure and product demoulding effect, can also improve the processing quality. Three-dimensional CAD mold Designer Most of the time is consumed here, so the mold is the engineer must master a skill. China-made three-dimensional CAD design software 3D in the mold industry application, can quickly complete the mold forming parts design, and finally through the mold frame system and standard parts to complete the design of the whole mold, for three-dimensional designers to save a lot of time costs.

The key point of the split-mode process is the creation of the fractal surface. There are two main methods to create the parting surface, namely, the automatic parting tool extracting parting surface and the general surface construction method to create the parting surface. In the three-dimensional CAD 3D mold design, the use of existing product models, through the establishment of mold assembly model, set shrinkage, demoulding slope inspection, area definition, hole filling, parting surface design, disassembly and other processes, can quickly complete the mold forming parts design, finally through the mold frame system and standard parts of the transfer to complete the design of the whole mold. In the whole design process, if the "hard cut" design of the fractal surface, will spend too much time on the "hole" on the, and the 3D Automatic tooling tool to provide a strong solution, you can not make up "by hole", directly to the separate mode. We use the following cases to show the 3D automatic mode separation function, the product map is as follows:

Product Analysis: 1. Product classification surface is irregular; 2. Product "by Hole" many, and irregular, complementary surface complex.

Using the 3D automatic quick split mode, the operation steps are as follows:

1. First, define the area, which is to distinguish the upper and lower models by color, as shown in the following illustration:

2. Select "Calculation", and select the open mode direction "Z" axis direction, the system automatically calculates the upper and lower modes, the results are as follows:

3. Define "vertical surface" "intersection" and "unknown surface" according to the actual situation, all of which are defined as "cavity" area, as shown in figure:

4. To the product "separation", precipitation upper and lower model cavity surface, for mold parting surface preparation:

5. To do mold classification, according to the size of the mold to set the distance of the type of surface:

6. Change the unreasonable fractal surface at the corner, as shown in the figure:

7. Select the unreasonable fractal surface of the curve, according to the "Trim plane" way to set parameters, improved fractal surface as shown in the figure:

8. Create "workpiece", that is, the definition of mold kernel size, such as diagram parameter settings:

9. The final step of the mold, separate the upper and lower mold kernel, "workpiece" select the "workpiece" created in the previous step, "parting" select the created "Parting surface", confirmed.

In the mold design, the automatic classification tool to extract the fractal surface is generally more suitable for the parametric model, the fractal surface created by the general surface construction method is suitable for the nonparametric model (i.e., the traditional "hard chopping" model), and for the input nonparametric model, it is necessary to have the steps of data repair to generate the entity model for the subsequent creation of the fractal surface. Through the above operation, the three-dimensional design software 3D of automatic mold tool to provide a strong solution, you can not make up "by hole", directly to the split-mode, greatly improve work efficiency.