The Research And Development Of Valve CAPP System Based On Drawing Tools

Computer Aided Process Planning (CAPP, Computer Aided Process Planning) is bridge and link of the connection computer-aided design (CAD) and computer-aided manufacturing (CAM) , it is the key technology areas of enterprise product design data into manufacturing data , is one of the basic techniques about advanced manufacturing system .With the integrated environment turn toward CAPP technology products mentioned, in order to ensure product Process data effectiveness, integrity, consistency,Implementation process data sharing, CAPP and manufacturing information systems integration,must be carried out in-depth study of CAPP process data management technology.The valve is widely and largely used in petrochemical units of important pressure pipeline component with truncated, regulation, diversion, to prevent reflux, regulation, diversion or overflow, releasing pressure and other functions; it is the most complex pipeline components, the general assembly of multiple components .It's complex structure and high technology.In the industrial, construction, agriculture, national defense, scientific research and people's livelihood, the increasing use of human activity has become indispensable in all areas of general machinery. At present, China in the valve manufacturing industry has very low penetration of information technology, specifically for valve parts for computer-aided process design software less, more than enough for many above, it is necessary to design parts for the valve applied research and development of a CAPP system software.dissertation from the valve CAPP system starting the actual needs of enterprises, large amounts of data in the reference literature at domestic and abroad, based on combined with the author's experience in Software development, With the valve computer aided process planning for the target, described valve CAPP system design concept and implementation methods.Extensible Markup Language XML, a next-generation Internet, transmission format, in many large-scale systems to work together and become the only data exchange format. In recent years, XML has been applied in mechanical engineering industry, the system uses the combination of database and XML information integration approach to CAPP and valve manufacturing information systems can be good for data sharing and data exchange, thus effectively improve data efficiency and scalability.dissertation on the valve CAPP system study in-depth about design and development methods , using XML, VC + +, SQL Server and other development platforms and technologies, to achieve a valve products, components, materials and other basic information editing, The preparation of valve technology cards,base on interactive CAPP,Realization of technological process, machining and heat treatment process design of computerized information;To minimize repetitive work, to achieve information sharing within the CAPP system; able to achieve typical process of accumulation, to provide guidance for the new process design; can process the parts involved in graphics functions to draw...