Cutting simulation is the key link of spiral bevel gear digital manufacturing. In the virtual environment, the virtual machining of spiral bevel gear instead of the traditional adjustment and trial cutting can well solve the above problems. In addition, cutting simulation can not only verify the rationality of machine tool adjustment parameters, but also provide accurate models for digital TCA analysis, finite element analysis and other work.
Many scholars have carried out in-depth research on the spiral bevel gear simulation processing method based on cad/cam software platform, and realized the inspection of spiral bevel gear processing method, processing parameters and processing code, which greatly shortened the gear trial cutting process and brought convenience to users. However, they all use the existing three-dimensional modeling software to realize the cutting process simulation of multi axis NC gear milling machine in the three-dimensional environment through its secondary development. This kind of method must be attached to the existing three-dimensional modeling software, which is expensive, so it increases the use cost; In addition, the simulation speed of this method is slow and the reusability is poor, so it is difficult or impossible to achieve real-time simulation.
Therefore, in view of the problems existing in the current spiral bevel gear cutting simulation, this paper focuses on the algorithm of virtual machining process and the visualization of cutting process, constructs the spiral bevel gear cutting simulation system, and realizes the real-time simulation of machining process.
The new method of spiral bevel gear cutting simulation is proposed. On this basis, the Boolean operation of the tool and gear blank is realized, and the storage and reconstruction of the obtained tooth surface data points and the real-time display of the cutting process are realized. A spiral bevel gear NC machining simulation system is developed. The simulation system realizes the fast and high-precision real-time simulation of spiral bevel gear machining process. It can be applied to various tooth systems and machining methods of spiral bevel gears, and it can also be embedded into the NC system. The simulation results have high scientific research value and use value.