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Parameters Modeling Design And Dynamics Research On Globoidal Indexing Cam Mechanism

Posted on:2017-05-13Degree:MasterType:Thesis
Country:ChinaCandidate:X L ZhouFull Text:PDF
GTID:2322330503992061Subject:Mechanical engineering
Abstract/Summary:PDF Full Text Request
Indexing cam mechanism in terms of the more traditional batch mechanism, is a new indexing mechanism, and has been used as the core of the transmission device which is widely used in automated machinery. Due to its complex work surface, and they are often used for various highspeed, high stiffness, high load bearing strength of the environment, the study three-dimensional parametric modeling, dynamics, kinematics performance of the institution is very important.When the basic parameters and the movement of Globoidal premise are determined, universal participation of profile curve equation is deduced based on space surface conjugate principle, when engaging arc cam motion. Using CREO creating three-dimensional parametric model cambered profile equation of cam mechanism, and the model established in accordance with this method is more accurate than other models and modeling method based on very simple. Lagrange equation, including the race to create the equivalent contact stiffness between the roller and cam roller alternately changes,and the output of the input shaft torsional vibration displacement exact dynamics model, the axial vibration displacement, rotational damping combination of factors, and Solutions using ABAQUS solved for its practical significance in engineering while to get indexing plate, output shaft deformation modes Fig. Modeling process also takes into account energy dissipation, the equivalent method for solving, and they are not rigidly adhering to the traditional method with a certain degree of innovation. Finally, the use of virtual prototyping technology, combined with ADAMS software to create rigid coupling kinematic model arc cam mechanism, the model considers a flexible force between member constraints, and the actual motion is more comprehensive than the previous model for a reaction mechanism. The model for forward kinematics is analyzed and impact situation of different parameters on the movement between the cam and roller contact force is studied.By studying the mechanism of indexing cam profile equation for development, CNC machining products provides a theoretical basis. Kinematics, dynamics modeling and analysis provide some reference for further research and optimization design agencies.
Keywords/Search Tags:Globular indexing cam mechanism, Contour surface equation, The parameterized, Dynamics, Kinematics
PDF Full Text Request
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