Effect of Tolerance and Clearance in the Geneva Mechanism
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概要
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Automatic assembling machines require a regular cycle of motion and standstills. Therefore, various mechanisms for imparting intermittent motion have been devised. Of these mechanisms, the Geneva mechanism is one of the most commonly used, because of its simplicity. However, in designing this mechanism, consideration has never been given to design sensitivity. In other words, the analysis of the difference between an ideal model and one which incorporates manufacturing tolerances and clearances has not been made. In this paper, the effects of these tolerances and clearances are discussed. The results obtained are summarized as follows : (1) The influence of manufacturing tolerances of both driving and fixed linkage on the generated function is clarified. (2) The effect of the backlash of the locking cam, and the effect of the locking cam's radius on the indexing precision are also clarified. (3) A new Geneva wheel is proposed.
- 一般社団法人日本機械学会の論文