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Simulation Technology for Turning and Milling Combined Processing

Due to the large number of moving parts and complex functions in turning-milling composite processing, processing simulation after programming is particularly important. Since my country’s aerospace manufacturing plants have put turn-milling composite processing into actual production for a short period of time, there is currently no mature simulation application technology. Therefore, most manufacturers verify and optimize programs through trial cutting, which results in long process preparation cycles and long development times. Risks and processing costs are high.

In order to improve the application level and programming efficiency of turning-milling composite processing, the application of simulation technology must be vigorously promoted. Currently, the software used for turning-milling composite machining simulation mainly includes TopSolid, Gibbs, etc. However, these software are generally expensive and are rarely introduced in my country’s aviation manufacturing field. In fact, the simulation of turning and milling composite processing can also be realized with the help of current general CNC machining simulation software (such as Vericut, NCSimul, etc.). According to the structure, motion characteristics, special functions and CNC system of the turning and milling composite processing equipment, through customization and macro Function development realizes motion simulation of the machining process.

Using general CNC machining simulation software to realize the simulation of turning and milling composite processing requires first building a relatively realistic machine tool environment in the simulation system, focusing on the establishment of the relative motion relationship and geometric position relationship between the moving parts of the machine tool. On this basis, the tool library and corresponding tool numbers used in the machining process are established. Then configure the CNC system of the machine tool equipment and the machining benchmark of the CNC program, and load the post-completed NC code into the simulation system to perform the simulation of the machining process. Different from conventional CNC machining, some functions (such as multi-channel machining, tailstock control, etc.) also need to be completed through the development and customization of macro functions.

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