Realization of a reconfigurable parts feeding system using Arrayed Vibratory Units Made by Stereolithography

(1)立体光刻材料的特性评价与选择首先，我们为我们的目标产品斜针网格阵列（IPGA）选择了一种合适的立体光刻材料。其次，我们在不同条件下（辐照和扫描）制备了IPGA，确定了目标IPGA的最佳条件。第三，我们利用JIS型立体光刻试样进行拉伸试验和三点弯曲试验，确定了SL材料的特性。(2) SL板及零件进给系统的设计与制造我们设计了IPGA的形状（倾斜销的尺寸、角度和间距），并为SL制造创建了3D-CAD模型和优化支撑。从SL对IPGA的测量结果中，我们证实了IPGA满足要求的精度水平。并为有效零件的进给制作了振动装置。(3)零件进给分析模型利用RPFS建立了零件进给分析模型。在分析模型中，考虑了销与进给物体之间的摩擦系数、斜销的尺寸和材料特性以及进给物体。(4)零件进料性能评估我们开发了一个可重构零件进料系统（RPFS）的原型，该系统由位于大蜂状板上部的IPGAs和位于板下部的垂直激振器组成。我们评估了零件进给对象、销倾角和振动频率的影响。实验结果明确了系统的性能。最后，对研究成果进行了总结，并提出了需要解决的问题，以期在今后的实际应用中得到更好的应用。

(1) Characteristic Evaluation and Selection of Stereolithography MaterialFirstly, we selected a proper stereolithography (SL) material for our target product, inclined pin grid array (IPGA). Secondly, we made IPGAs in different conditions (irradiation and scan), and we determined optimal condition for our target IPGA. Thirdly, we determined characteristics of SL material from results of tensile test and three-point bending test using JIS type specimens made by stereolithography.(2) Design and Manufacturing of SL plate and Parts Feeding SystemWe designed the shape of IPGA (size, angle, and interval of inclined pins) and created 3D-CAD models and optimal supports for SL manufacturing. From the measurement results of IPGA made by SL, we confirmed that the IPGA satisfy the required level of accuracy. We also made vibration units for the effective parts feeding.(3) Analysis model of parts-feedingWe have developed an analysis model of the parts-feeding by the RPFS. In the analysis model, the friction coefficient between the pin and the feeding-object, sizes and material characteristics of an inclined pin, and a feeding object were considered.(4) Performance evaluation of parts-feedingWe have developed a prototype reconfigurable parts feeding system (RPFS) that consists of IPGAs on the upper side of a large honeycomb-shaped plate and vertical exciters on the-lower side of the plate. We evaluated the influences of a parts-feeding object, inclination angle of a pin, and vibration frequency. From the experimental results, the system performance was clarified.Finally, the research results were summarized, and the problems to be solved were listed for aiming at the practical use in the future.