Increase in productivity of the micro slide conveyance by part-specific and adaptive process models

作为DFG项目的一部分，将压电振动输送机耦合到微型零件柔性送料系统的基础，在卡尔斯鲁厄的wbk生产科学研究所制定并检查了基于微滑动输送的小型易碎零件自动柔性送料的替代方法。然而，对于该系统的生产和高效运行还明显缺乏研究。这主要是由于缺乏适合输送过程的过程模型。到目前为止，只可能分别对一些选定的特殊情况[Trö-11]或[Hab-84]和广义形式[Moz-72]进行建模。由于许多影响因素，它们部分未知的作用和相互作用，以及运行过程中不断变化的环境影响，通过观察力学和物理学来开发普遍适用的过程模型似乎非常复杂，但前景并不乐观。因此，该项目的目标是在合适的工艺模型的帮助下，提高基于压电振动输送机的自动化模块化柔性进料系统的效率和生产率。在该项目中，首先将开发一种用于压电振动输送机上微滑动输送的零件特定过程模型的自动化建模方法。在适当的算法的帮助下，就有可能为不同的喂料过程确定理想的输送参数，如以最大速度输送或快速直接定位。监测模型质量的特殊方法还应允许在运行过程中自动纠正或调整过程模型，例如，在环境条件发生变化的情况下。该项目的成果是智能控制柔性压电驱动的馈送系统配备了图像处理。该控制包括建模功能，每当有新的未知部件需要进给时，该功能就会执行。根据该模型，根据部件、过程和环境状态调整输送参数，可以明显提高自动化模块化和灵活的进给系统的效率和生产率，这些系统根据微滑块输送原理工作。

As part of the DFG project, Basics for coupling piezoelectric vibratory conveyors to a flexible feeding system for micro parts, an alternative approach for the automated flexible feeding of small and fragile parts on the basis of the micro slide conveyance was worked out and examined at the wbk Institute of Production Science in Karlsruhe. However, for a productive and efficient operation of the system there is still a clear lack of research. That is primarily the result of a missing suitable process model for the conveying process. A modeling was so far only possible for some selected special cases [Trö-11] or [Hab-84] and in a generalized form [Moz-72] respectively. Due to many influencing factors, their partially unknown effects and interactions, and changing environmental influences during operation, a development of a generally applicable process model by looking at mechanics and physics seems very complex and not very promising though. So, the objective of the project involves increasing the efficiency and productivity of automated modular flexible feeding systems on the basis of piezoelectric vibratory conveyors with the help of suitable process models. Within the project a method for the automated modeling of a part-specific process model of the micro slide conveyance on piezoelectric vibratory conveyors will be developed first. With the help of appropriate algorithms there shall be then created the possibility to determine the ideal conveyance parameters for the distinct feeding process, like conveying at maximum speed or fast and direct positioning. Special methods for monitoring the model quality shall furthermore allow an automated correction or adjustment of the process model during operation in case of changed environmental conditions, for instance. The project result is an intelligent control of a flexible piezoelectrically driven feeding system equipped with image processing. This control includes a modeling function which is always executed whenever a new and so far unknown part needs to be fed. Conveyance parameters that are adapted on the basis of this model to the part, the process and the environmental state, enable a clear increase in efficiency and productivity of automated modular and flexible feeding systems that are working according to the principle of the micro slide conveyance.