Process Machine Interaction In Gear Honing

现代珩齿机的全部性能通常不能达到，因为振动和所需的齿轮质量不能实现。本研究的目的是预测激振源，珩齿过程的振动行为和可能的自激振荡的说明。为此，需要建立过程和机器模型。根据临界振动的原因和形式，整个机器的模型或部分模型与过程模型耦合。将珩齿过程的接触条件转化为一个类比过程，作为建立过程模型和激励的基础。对于接触的每个齿面，在测量过程力的情况下执行模拟过程。使用这些数据，珩磨过程可以在空间上和时间上解析分析齿廓。通过局部切削力的叠加以及与珩齿试验的对比，验证了该工艺模型的正确性。机器模型（可能是部分模型）由具有单自由度的耦合振荡器的频率响应的近似值或由FE模型表示。完整模型的设计基于机器和过程交互的标准模型。整个系统的动力学行为的计算进行离散的时间步长。切削力的计算使用所提出的过程模型，并耦合到机器模型。发生的位移被传递到过程模型，并且控制回路被闭合。该耦合模型将能够预测珩齿过程中的力和激励行为。

The full performance of modern gear honing machines can usually not be reached because of vibrations and the desired gear quality can not be achieved. The objective of this research is the prediction of excitation sources, the vibration behavior of the gear honing process and the illustration of possible self-excited oscillations. To this end, process and machine models need to be established. Depending on the cause and form of critical vibrations, a model of the entire machine or a partial model is coupled with the process model. As a basis for the process model and the excitation, the contact conditions of the gear honing process are transferred to an analogy process. For each gear flank in contact an analogy process is carried out under measurement of the process forces. Using these data, the honing process can be resolved spatially and temporally analyzed over the tooth profile. By superposition of the local cutting forces and a comparison with gear honing trials the process model is validated. The machine model (possibly partial model) is represented either by an approximation of the frequency response of coupled oscillators with a single degree of freedom or by an FE model. The design of the complete model is based on the standard model of machine and process interaction. The calculation of the dynamic behavior of the whole system is carried out for discrete time steps. The cutting forces are calculated using the presented process model and coupled with the machine model. The occurring displacements are passed of to the process model and the control loop is closed. The coupled model will enable the prediction of process forces and excitation behavior in gear honing.