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TECHNICAL PAPERS

Design of Torque Balancing Cams for Globoidal Cam Indexing Mechanisms

[+] Author and Article Information
Der Min Tsay, Hui Chun Ho, Kuan Chang Wang

Department of Mechanical Engineering, National Sun Yat Sen University, Kaohsiung 80424, Taiwan

J. Mech. Des 124(3), 441-447 (Aug 06, 2002) (7 pages) doi:10.1115/1.1479690 History: Received August 01, 2000; Online August 06, 2002
Copyright © 2002 by ASME
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References

Chen, F. C., 1982, Mechanics and Design of Cam Mechanisms, Pergamon Press.
Rothbart, H. A., 1956, Cams, John Wiley.
Tsay,  D. M., and Lin,  B. J., 1997, “Design and Machining of Globoidal Index Cams,” ASME J. Manuf. Sci. Eng., 119, pp. 21–29.
Tesar, D., and Matthew, G. K., 1976, The Dynamic Synthesis, Analysis, and Design of Modeled Cam Systems, Lexington Books.
Reeve, J., 1995, Cams for Industry, Paston Press.
Johnson,  R. C., 1984, “Force Reduction by Motion Design in Spring-loaded Cam Mechanisms,” ASME J. Mech., Transm., Autom. Des., 106, pp. 278–284.
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Tsay,  D. M., and Lin,  B. J., 1996, “Improving the Geometry Design of Cylindrical Cams Using Nonparametric Rational B-Splines,” Computer-Aided Design, 28(1), pp. 5–15.
Chakraborty, J., and Dhande, S. G., 1977, Kinematics and Geometry of Planar and Spatial Cam Mechanisms, Wiley Eastern Limited.
Backhouse,  C. J., and Rees Jones,  J., 1990, “Envelope Theory Applied to Globoidal Cam Surface Geometry,” J. Mech. Eng. Sci., 204, pp. 409–416.
Tsay,  D. M., and Wei,  H. M., 1996, “A General Approach to the Determination of Planar and Spatial Cam Profiles,” ASME J. Mech. Des., 118, pp. 259–265.
Tsay,  D. M., and Ho,  H. C., 2000, “Consideration of Manufacturing Parameters in the Design of Grooved Globoidal Cam Indexing Mechanisms,” J. Mech. Eng. Sci., 215, pp. 95–103.
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Sarring, E. J., 1962, “Torque Compensation for Cam Systems,” ASME Proceedings of 7th Conf. On Mechanisms, Oct. 8–10, pp. 179–185.
Benedict, C. E., Matthew, G. K, and Tesar, D., 1971, “Torque Balancing of Machines by Sub-unit Cam Systems,” Proceedings of 2nd Applied Mechanisms Conference, Oklahoma State University, Stillwater, October, pp. 15-1∼15-3.
Nishioka,  M., and Uchino,  M., 1993, “Compensation of Input Shaft Torque on Indexing Cam Mechanisms,” JSME Int. J. Ser. C, 59(562), pp. 1913–1919.
Nishioka, M., 1999, “Design of Torque Compensation Cam Using Measured Torque Distribution,” IFToMM 10th World Congress on the Theory of Machine and Mechanisms, June 20–24, Oulu, Finland, Proceedings Vol. 4, 1471–1476.
Cox,  M. G., 1972, “The Numerical Evaluation of B-splines,” J. Inst. Math. Appl., 10, pp. 134–149.
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Figures

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Reduced globoidal cam input torque
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Schematic illustration of measuring system
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Measured indexing accuracy at various speeds
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Contact force and pre-load
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Torque balancing cam profile
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Motion curves of torque balancing cam
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Ideal counterbalancing torque
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Normalized turret motion curves
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Spring-loaded cam mechanism
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Globoidal cam indexing mechanism

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