Study On Web-based Large Injection Mould Quotation System

Molds/dies are significant technical equipments of producing various industrial products. In modern industry, about 60％～90％products are delivered by molds. With the developing of the modern industry and the sharp shortening of the period of products updating, the demand of molds and dies expands increasingly. On the other hand, we master foreign advanced technology of molds continuously. This makes the gap of mold industry smaller and smaller between our country and foreign countries. The export business is expanding. Molds-quotation is comprehensive reflection of technology,economy,efficiency and management of manufacturers of moulds. It is the first step that mould corporations come into contact with their customs, and also it is the critical aspect that determines whether the mold corporations can obtain the orders and get profit from the mold make. Customer's requirement gets higher and higher and the competition between corporations gets more and more drastic under the market economy condition. All about that make the quotation that calculated by experience can not satisfy the quotation require. So, developing a set of molds quotation software that can satisfying the practical quotation demands becomes common concern questions of the manufacturer of the molds and customer.The thesis is concerned mainly on the project of "The digitized manufacture of car's large precise complex injection mold", which is a key industries project of the Guangdong province. On the basis of studying about the large injection mold like the fender-guard, we develop a set of Web-based large injection mold quotation system. It can offer a fast and accurate quotation to corporations.(1) The thesis analyses the method and characteristic of mold quotation and the present state of computer-aided-quotation. The differences between the manufacture characteristic and the cost construction of large injection mold and that of medium and small-sized injection mold are generalized by analyzing the cost construction of mold, then the equation of large injection mold is constructed.(2) By using fuzzy mathematics theory, the thesis constructs the uniform matrix of large injection mold and the coefficient numerical value of every similar features, achieves fuzzy search of quotation.(3) Adopting Borland Delphi 7.0,Intraweb control and MSSQL Server 2000, we develop the Web-based large injection mould quotation system, prove the practicability of the software by some examples, fulfill the injection mold quotation system though software and network means.(4) The system is integrated with large injection mold design knowledge management system. This make the management of large injection mold perfect.The system has the following features: simple interface, easy to use, favorable man-machine conversation, and so on. It can avoid various complex calculation effectively. It is result correspond to reality, and make better effect.