文档介绍：Mechanism and Machine Theory 44 (2009) 1192–1200
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Mechanism and Machine Theory
journal homepage: ate/mechmt
Design of Geneva mechanisms with curved slots
for non-undercutting manufacturing
Jyh-Jone Lee *, Bin-Heng Jan
Department of Mechanical Engineering, National Taiwan University, 1, Roosevelt Road, Section 4, Taipei 106, Taiwan
article info abstract
Article history: In this work, a systematic method using the theory of envelope to determine the geometry
Received 11 January 2008 of Geneva mechanisms with curved slots is presented. In addition, the undercutting as well
Received in revised form 13 August 2008 as double-point condition in the curve is investigated. The design charts free of undercut-
Accepted 1 September 2008
ting and double point are also plotted based on the input driving angle and offset angle. A
Available online 23 October 2008
mock-up is built to demonstrate the feasibility and availability of the design theory.
Ó 2008 Elsevier Ltd. All rights reserved.
Keywords:
Geneva mechanism with curved slots
Theory of envelope
Undercutting
Double point
1. Introduction
Conventional Geneva mechanisms monly used as an indexing mechanism where an intermittent motion is
required. A particular feature of this mechanism is that for each number of stops, there is a particular motion period and
a correspo