多片式共軛凸輪機構設計與分析

Synthesis and Analysis of Planar Conjugate Cam Mechanisms

陳億鍊(Yi-Lian Chen)

指導教授 ： 林博正

國立虎尾科技大學/工程學院/自動化工程研究所/碩士(2010年)

摘要

共軛凸輪機構主要是由多片平板凸輪及一組多滾子之轉塔所組成，本文探討共軛凸輪機構之幾何、運動與動力特性，釐清幾何對凸輪特性間的相關聯性，以合成出於產業界中之重負載大分割角間歇運動機構。本文以剛體轉置理論進行共軛凸輪外廓之求取，在者，此設計之共軛凸輪機構係一須承受重負載之大分割角間歇運動機構，因此必須於壓力角過大處進行作動角之限制以降低接觸應力，以及避免於組裝施加預壓後使從動滾子進出入凸輪時發生碰撞。本文以C語言進行分析程式撰寫，與Visual Basic 6.0進行應用軟體包裝，並以CATIA軟體中之有限元素分析模組進行組件模擬且與赫茲接觸理論進行比較，完成一套多片式共軛凸輪設計分析開發技術，可即時進行凸輪外廓幾何設計，並以滾子作動角度研判銜接重疊區域之合理性，使共軛凸輪機構能達成大分割角與承受重負載之要求。

關鍵字

剛體轉置理論 ； 共軛凸輪機構

並列摘要

The conjugate cam mechanisms is mainly is composed of many plate cams and multi-roller of the turret is composed of mechanisms. This article discusses the conjugate cam geometric, kinematic and dynamic characteristics, to clarify the geometry of the cam characteristics, design stemming from industrial field in heavy load and big division angle intermittent motion Mechanisms. Carries on the cam profile by the rigid body transposition theory seeking, but of conjugate cam train of mechanism this design one must withstand big division angle intermittent motion Mechanisms the heavy load, must achieves goal of the big division because of the cam and the roller engagement, But in engagement process, must carry on the angle of pressure main point does moves limit of the angle to reduce the contact stress, ss well as avoids exerts after the assembly the precompression causing the driven roller passes in and out into when the cam to have the collision. This article carries on the analysis program composition by the C language, 6.0 carries on the application software packing with Visual Basic, and in the software the limited ultimate analysis mold train carries on the module simulation by CATIA, and carries on the comparison with the hertz contact theory, completes more than a set of piece of type conjugate cam project analysis development technology, may carry on the cam overall of geometry design immediately, and does by the roller moves rationality of the angle evaluation engagement overlap region, enables the conjugate cam Mechanisms to achieve request of the big division angle and the withstanding heavy load.

並列關鍵字

Rigid body transposition theory ； Conjugate cam mechanisms

參考文獻

2. Norton, R. L., 2002, "Cam Design and Manufacturing Handbook, Industrial", New York, pp.413-419.

4. Chen, F. Y., 1982, "Mechanics and Design of Cam Mechanisms", Pergamon Press, New York.

8. Blackhouse, C. J. and Rees J. J., 1990, "Envelope Theory Applied to Globoidal Cam Surface Geometry," IMechE J. Mech. Engng Science, Vol. 204, pp. 409-416.

9. Tsay, D. M. and Hwang, G. S., 1994, "The Profile Determination and Machining of Camoid with Oscillating Spherical Followers," ASME Journal of Engineering for Industry, Vol. 116, No. 1, pp. 355-362.

10. Chakraborty, J., Bhadoria, B. S., and Dhande, S. G., 1975, "A Unified Approach to the Analytical Design of Three-Dimensional Cam Mechanisms," ASME Journal of Engineering for Industry, pp. 327-333.