The application scope of NC machining technology in industrial manufacturing field roughly includes the following aspects:
1. Box parts
There are many box parts in machining and manufacturing enterprises. This kind of product generally has more holes and working surfaces, and has more complex cavities. The machining face has the requirements of shape and position accuracy. If it is processed by ordinary equipment, it requires multiple process conversion benchmarks to achieve, and the accuracy is difficult to achieve.
Using machining centers to process box parts, especially multi axis CNC equipment, can complete the processing by virtue of its own accuracy level and the characteristics of high processing efficiency, good stiffness and automatic tool change. In the process of machining, as long as the technological process is formulated and reasonable special fixtures and cutters are used, the technological problems such as high precision requirements and complex processes of box parts can be solved.
2. Complex surface parts
NC machining mainly depends on the interpolation principle. Under the preset program, many complex surface shapes can be processed, and the manufacturing accuracy that ordinary equipment cannot reach can be achieved. For example, in aerospace and transportation manufacturing, parts with complex surfaces are common.
This kind of parts with complex curved surface contour generally cannot achieve the predetermined machining accuracy through ordinary equipment processing or precision casting. It is necessary to adopt multi axis machining center, cooperate with special tools and automatic programming technology, which can greatly improve the production efficiency, meet the machining accuracy requirements of product curved surface shape, and ensure the consistency of products. Make the automatic processing of complex parts simple.
3. Irregular parts
Heterosexual parts are also common in production and processing. This kind of parts has the characteristics of irregular shape. In ordinary equipment, it is impossible to achieve one-time positioning, so it is necessary to frequently convert the positioning datum to process different working surfaces. If the machining center is adopted, the polyhedron can be processed, and then combined with multi axis linkage, more working faces can be manufactured under the condition of clamping together, which can effectively reduce the machining error caused by multiple positioning.
4. Typical application of new product trial production
CNC machining center has a wide range of adaptability and high flexibility. When changing the processing object, it only needs to compile and input new programs, equip with necessary tooling and cutting tools to realize processing, which provides great convenience for single piece, small batch, multi variety production and new product trial production, and also reduces the trial production cycle.