Mechanical Design Improvement and Research of Multi-Function Plastic Hinge for Portable Pen Driver
| Autor: | Ming-Ching Wang, 王明清 |
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| Rok vydání: | 2012 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 100 Currently most of 3C products such as mobile phone, digital camera, digital video, notebook and electronic dictionary and so on are all used metal hinge as a rotation structure in the market, Due to its volume is too big and weight is a little heavy so that cost is higher as well. The purpose of this thesis (technical report) is in order to improve these defects and achieve the same function like metal hinge, therefore research and design a kind of pen driver with a compact plastic hinge instead of current metal hinge. The direction of research in this mechanism of plastic hinge must have rotation function from 0 to 164 angles, and it will also need the friction structure to make rotation action more stable without shaking problem when swiveling. Then its lock function is the most significant to guide users to know how to operate it conveniently when metal cover of pen driver is opened and swiveled to the immovable angle for using and it is swiveled to cover the PCB(Printed Circuit Board). The final goal in this concept of mechanism design can be applied for other products actually and can be produced in mass production smoothly. Will use CAD softwares of Pro-e/Engineer and Solidworks to do the mechanical design for details which include part separation and assembly, then use CAE softwares of ADAMS and Moldflow to do the mechanical motion and moldflow simulation before tooling is fabricated. The last step is to do some reliability test which includes rotation friction、bending and duration and so on. According to the final analysis and verification result： (1)Plastic hinge has not opened and dropped out from body when the moment of force was more than 0.528 Newton˙Meter. (2)Modified the assembly gap between the notch of top case and plastic hinge from 0.05mm to 0.02mm, the dimension of the assembly between metal cover and plastic main body is under 0.25mm (tolerance =0.3mm) after doing the verification again. (3)There is obviously friction and will not have rotation shake and drop situation when metal cover is swiveled to random angle. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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