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Diameter cylindrical cam non processing cylindrical cam CAD / CAM system development

Author: LuoXinJun
Tutor: LiuDeFu
School: Central South University
Course: Mechanical Manufacturing and Automation
Keywords: Cylindrical cam Diameter processing SolidWorks CAD / CAM system
CLC: TP391.7
Type: Master's thesis
Year: 2010
Downloads: 61
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Abstract


Cylindrical cam mechanism is widely used in the mechanical field , because it has good movement and dynamic characteristics . The complex structure of cylindrical cam design and processing difficulties , its CAD, CAM technology and the establishment of a dedicated CAD, CAM system , but large multifunctional monotony and lack of practicality . To improve the cylindrical cam CAD / CAM technology, versatility and practicality as well as cylindrical cam design efficiency , it is therefore necessary to develop a fully functional set of the cylindrical cam CAD / CAM system . This article studies the cylindrical cam profile equation , diameter processing theory , three-dimensional parametric modeling and CNC machining , the development of fully functional cylindrical cam CAD / CAM system . The main research content and research results are as follows : (1) by means of of Conjugate Surfaces and coordinate transformation theory, derive the straight the moving follower cylindrical cam mechanism , swing of Cylindrical Cam agencies and cylindrical indexing cam mechanism theoretical contour surface and roller contact angle equation . (2) Research cylindrical cam and other non- the Trail Cutter Tracks processing control principles and methods , and the establishment of non- equal diameter machining of cylindrical cam profile surface to the the error mathematical model and example calculation to verify that the method can meet the cam groove or flange high accuracy requirements , make up the the cylindrical cam profile surface diameter insufficient processing generating method . ( 3 ) to establish the programming of CNC machining feed rate associated with the actual feed rate model , feed by correct processing block programming speed, to ensure that the actual feed rate of the tool for constant speed , eliminating the actual cutting feedrate on the profile surface processing quality , improve the surface quality of the the cylindrical cam profile surface . ( 4) the application of virtual manufacturing method to create a three-dimensional geometric model of the cylindrical cam , SolidWorks and Visual Basic software platform for the development of functional cylindrical cam CAD / CAM systems , the cylindrical cam parametric design and solid modeling and CNC machining program the automatically generated. The several typical cylindrical cam ( 5 ) in LEADWELL V-60A Axis machining center CNC machining experiments and convex contour surface detection results of theoretical research and experimental results show that the thesis is basically the same .

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