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

(1)光固化材料的特性评价与选择首先，我们为目标产品--斜针栅阵列（IPGA）选择了合适的光固化材料。其次，我们在不同的条件下（辐照和扫描）制备了IPGA，并确定了我们的目标IPGA的最佳条件。第三，我们确定SL材料的特性，从拉伸试验和三点弯曲试验的结果，使用JIS型样品由光固化成型。(2)SL板和零件进给系统的设计和制造我们设计了IPGA的形状（尺寸、角度和倾斜销的间隔），并创建了用于SL制造的3D-CAD模型和最佳支撑。从SL制造的IPGA的测量结果，我们确认IPGA满足所需的精度水平。我们还制作了振动装置，用于有效的零件进给。(3)零件喂入分析模型利用RPFS建立了零件喂入分析模型。在分析模型中，考虑了销与送料对象之间的摩擦系数、斜销的尺寸和材料特性以及送料对象。(4)零件送料系统的性能评估我们开发了一个原型可重构零件送料系统（RPFS），它由位于蜂窝状大平板上侧的IPG和位于平板下侧的垂直激励器组成。我们评估了零件进给对象、销的倾斜角度和振动频率的影响。最后，总结了本课题的研究成果，并提出了有待解决的问题，为以后的实际应用提供了参考。

(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.