接插片冷沖壓模具設(shè)計(jì)-落料沖孔倒裝復(fù)合模含15張CAD圖.zip
接插片冷沖壓模具設(shè)計(jì)-落料沖孔倒裝復(fù)合模含15張CAD圖.zip,接插片冷,沖壓,模具設(shè)計(jì),沖孔,倒裝,復(fù)合,15,CAD
According to the archaeological discovery, more than 2000 years ago, the Chinese already stamping mould was used to make the bronze ware, which proved the leading world in the world of stamping molding and stamping die. In 1953, changchun first car factory established the stamping workshop in China for the first time, and the factory began making car covers in 1958. China began to produce precision machines in the 1960s. After a long period of development, China has formed more than 3 billion yuan (not including the statistics of Hong Kong, Australia and Taiwan, and the same. Production capacity of all kinds of stamping die. service
First, stamping mould market situation
China's stamping mould has been very developed in terms of quantity, quality, technology and ability, but the gap is still large compared with the advanced level of the national economy, and some large, sophisticated, complex and long life models are still heavily imported each year, especially the covering parts of the high-end cars, which are still mainly dependent on imports. Some of the simple stamping models have been oversupplied and the market is competitive.
The introduction of stamping mould market in China in 2004 is as follows:
According to the statistics released by the China mould industry association, the stamping die in China in 2004 was about 22 billion yuan, including $75 billion, or about 620 million yuan. service
In 2004, China's total import stamping die was 561 million dollars, or 4.66 billion yuan, according to customs statistics. From these figures, the total stamping mould market in China is about 2666 billion yuan in 2004. The total demand for domestic markets is 26.40 billion yuan, and the total supply is about 213.8 billion yuan, and the market satisfaction rate is 82%. In the above supply and demand, most of the molds are high technical content, and the export mould is mostly a low level of the medium and low mold, so the high quality of the medium and high grade mould market satisfies the rate below the overall satisfaction rate of the stamping die, the development of these molds has been delayed by the production of the shock pressure parts, and the low level of the low-grade mould market satisfaction rate is higher than the overall satisfaction rate of the stamping die market. The second is that the price of the mould in our country is low and low, and it has a certain competitiveness, so its prospect in the international market is bullish, and the export of stamping die in 2005 is $146 million, which can be noted by 94.7% in 2004. In recent years, Hong Kong, Taiwan and foreign enterprises have developed rapidly in our country, and there is no specific statistical data on the self-produced stamping die of these enterprises, so they have not been included in the above figures.
Ii. Stamping die level condition
In recent years, the level of stamping die in China has been greatly improved. Large stamping molds have been able to produce a single set of 50 tons of molds. The cover of the medium gear car is also able to produce in the domestic mold. The precision reaches 1~ 2mmm, and the number of other enterprises in the country has been able to produce. The surface roughness reaches ra1.5m, large size ((300mm)), and the thickness plate in the medium is also high. service
The technology of the die cad/cam
The development of mould cad/cam technology has been developing for more than 20 years. The precision die cad/cam system, which was completed by the original Chinese college and wuhan 733 factory in 1984, is the first self-developed mould cad/cam system in our country. The cold punch and CAM system, which is the first punching die cad/cam system, is the first punching die cad/cam system in China. The cold punching die cad/cam system developed by Shanghai jiaotong university was also completed in the same year. Since the 1990s, cad/cam technology has been adopted in the design and manufacture of domestic auto industry. The national science and technology commission 863 plan to use dongfeng motor co., LTD as the model factory of cims, which is based on the technology of central China, and the development of the car body and the covering parts mould cad/capp/cam integration system was identified in early 1996. During this period, the auto mould center introduced the workstations and the cad/cam software system, and the application of the mould design in the mould design was made. In 1997, steam introduced the process computer simulation cae software and began to be used for production. service
In the 21st century, cad/cam technology has become more and more popular, and the stamping die enterprises with certain production capacity have the cad/cam technology. Some of the key enterprises also have the ability of each cae. service
Mould cad/cam technology can significantly shorten the design and manufacturing cycle of die, reduce production cost, improve product quality, and become the consensus of people. During the "nine five" of "eight five", a large number of mould enterprises have been popularized by computer graphics, and the utilization of nc processing has been increasing, and a considerable number of cad/cam systems have been introduced. American parametric technology company's pro/engineers. U.S. CV company's cads5, British delcam company doct5, Japan HZS crade and e, Israel company's cimatrona, also introduced autocad-catia software and French marta-daravision company for automotive and cover parts of the mould of the euclid-is and other specialized software. The domestic auto covering mould production enterprise is widely used in cad/cam technology. The design of the dl diagram and the design of the mould structure diagram have been implemented in two dimensions, and most enterprises have been transitioned to three dimensions, and the total drawing is gradually replaced by the production of parts. And the parameterized design of the mould is also moving to the field of technical development of a few mould factory. service
In addition to the introduction of the software, the Chinese science and technology university, jilin university and hunan university have developed the software of the high level of independent intellectual property, which has been successfully applied in the production practice, which has produced good benefits. service
The rapid manufacturing of the mold is low, the production precision is low, the sample is difficult to make difficult and so on, the 3d cad model is used as the fast die manufacturing of the molding, and the precision of the manufacturing parts, the development of the new car type in the car industry, the automatic body fast test system provides the guarantee of the cover, it is the sign that the RPM application to the car body large cover test mould has been successful. service
In recent years, there have been new rapid forming methods, such as the non-modular multipoint forming and laser impact and electromagnetic forming of the production. They all show the advantages of reducing costs and improving efficiency.
Mould design and manufacturing ability condition
Under the correct guidance of the national industrial policy, after decades of hard work, the design and manufacturing capacity of stamping die in China has reached a high level, including many modern design and manufacturing technologies, including information engineering and virtual technology, which have been applied in many mould enterprises.
However, China's stamping mould design manufacturing ability and market needs are still larger than the international advanced level. These are mainly expressed in the design of high-end cars and large and medium-sized car covers, and high precision stamping, there is a large gap in design and processing technology and ability. The car covers the mould, has the design and the manufacturing difficulty, the quality and the precision requirement high characteristic, can represent the level of the mold. Although the design manufacturing method and means have basically reached the international level, the mould structure function is also close to the international level, in the car mould localization process in the first step, but in the manufacturing quality, precision, manufacturing cycle and so on, there is a certain gap between the foreign and foreign countries. service
It is the precision mould variety of China's key development. It is representative of the automatic valve disc multi-function mould, which is integrated with the electromechanical integration of the core, which has reached the international level. service
However, in general, there is still a certain difference between manufacturing accuracy, service life, die structure and function. service
The manufacturing technology of car covering parts mould is constantly improving and improving, and the use of high precision and high efficiency processing equipment is becoming more and more extensive. High - performance five-axis high speed milling machines and three - axis high speed milling machines are more and more applications. The application of ncu DNC technology is more and more mature, which can be processed and superrefined. All of these improve the precision of die type surface, improve the quality of the mould, and shorten the manufacturing cycle of the mould. service
Mould surface reinforcement is also widely used. The process of mature, non-polluting, and inexpensive ion nitmatrosis is becoming more and more recognized, and the application of carbide coating processing (td) and many plating (coating) layer technology on stamping die is increasing. The technology of vacuum processing, solid casting technology and edge fabrication technology are mature. Laser cutting and laser welding techniques have also been applied. service
Degree of specialization and distribution
In China, the industry is less specialized in the mould industry, and the proportion of the mould is too high. The foreign mould self-fertilization case is generally 300%, and the domestic proportion of stamping die in China is 600%. This has many adverse effects on specialization. Now, the technical requirement is high, the large mould, the degree of specialization is high, such as the cover parts die, the multi-station stage and the finishing die. And general mode of specialization is lower. Because of the high ratio of self-matching, the distribution of stamping die production ability is basically the distribution of the production capacity of stamping parts. However, the distribution of professional production enterprises is not subject to the distribution of the stamping parts, but often depends on the decision of the main investors. In sichuan, for example, there is a strong ability to cover the mould of the car, and jiangsu has the ability of precision punching, and the die users are mostly not local. service
The development focus and prospect of stamping die
The selection of development priorities should be determined according to market demand, development trend and current situation. It can be described in terms of product focus, technical focus and other key points. service
1, stamping die product development focus.
There are seven small classes in the stamping die, and some kinds of categories that are addressed by their service objects. It is urgently needed to develop a car cover mold, multi-function, multi-station stage and precision. These molds are now in conflict and promising. service
The main point of the auto cover mould is the high and medium premium car large and medium covered parts, especially the outer covering parts. High strength board and unequal thickness plate stamping die and large multi-station stage and continuous mode will be developed in the future. The multi-function and multi-station stage is focused on high precision, high efficiency and large, high-to-life. The focus of the show is that the thick plate is large in precision, and it does not break the precision. service
2. Focus on the development of stamping die technology.
The future development trend of mould technology is the development of the informationization, the high speed production and the high precision. Therefore, from the design technology, the development focus is to vigorously promote the application of cad/cae/cam technology, and to continuously improve the efficiency, especially the computer simulation analysis technology of the plate forming process. The technique of mould cade-cam technology should be developed, integrated, intelligent and networked, and the degree of specialization of the CAM system of the high mould. service
In order to improve the application level of caee-cam technology, it is very important to establish complete mould database and develop expert system and improve the practicality of software. From processing technology, development focuses on high speed processing and high precision processing. High speed processing is mainly the development of high-speed milling, high-speed research and casting and high-speed processing and rapid molding technology. High precision machining is mainly the precision processing of the precision 1m and surface roughness of the mould parts. To improve the standardization of molds, the production supply of die standard parts is one of the key points of stamping die technology. service
In order to improve the life span of stamping die, the various kinds of reinforced ultra-hard processing are also the main points of development. service
In the case of digital manufacturing, system integration, reverse engineering, rapid prototype/mould manufacturing and computer auxiliary application technology, the development and engineering service of mould is developed, and the quality of enterprise level and mould is greatly improved, which is the key to the development of stamping die technology. service
Other development priorities and prospects.
Other development points and prospects are very rich, and there are only three aspects of management, specialization and standardization and industry adjustment. service
Enterprise management is a system project, it is a learning, it is science and technology. In a sense, our management is far more backward than technology than industrial developed countries. Therefore, the management of the mould enterprise is very important, and the management of the mould enterprise has many forms, each has its adaptive object, but the construction of informationization, the gradual realization of informationization management has become the development direction, and the industry also has the consensus. service
Due to the historical and institutional reasons, the professional and standardized standards of mould in our country have been low, and the specialization of stamping die is lower than plastic die and die casting. This is in a way that interferes with the development of stamping die, according to the professional situation of mould in domestic and foreign, specialization can have multi-layer meaning: 1. 2) according to the type of mould, specialized in a certain type of mould (such as stamping mould) production; 3) in a type of mould, according to its service object or mould process and size, select some of the molds in this type of mold (such as car cover mould, multi-station grade into die, precision and so on) to specialize in production; 4) the production of certain parts of the mold (such as die frame, punch, elastic element, etc.) supply mould production enterprises; 5) professional collaboration in the process. For example, the company, which specializes in the design of mould design, specialized in the processing of cavity processing or electrical processing cooperation, specialized in the enterprise and professional business of the processing of the measurement or heat treatment, and so on, this multi-level specialization contributes to the development of the mould industry. But the path of specialization is still far away, and the process must be accelerated to accommodate the situation. So this is also the focus of development.
Industry adjustment is a very heavy task, especially in the mould industry. The adjustment task facing the die industry is mainly:
(1) the adjustment of the structure of the mould enterprise. To make the die factory (workshop) independent, becoming an independent legal person that is facing the society and conceit, is the direction of adjustment. The mould enterprise is developed in the direction of small and small and small and small and small and small, small and small, and the joint of enterprises in the mature situation, as well as the combination of development production, learning, research and science, industry and trade, is also the direction of adjustment. The scale effect also attracts attention. service
Adjustment of the structure of the mould product. With the development of automobile industry, electronic information industry and home appliance industry, stamping mould market structure is changing greatly. In this case, the construction of stamping mould must be adjusted accordingly. For example, the precision of the car parts, the high precision of the lead frame, the multi-station type of the plug-in, the various kinds of motor, the type and the production of the machine, the product type and the production of the product will have a lot of development, and the enterprises must adjust the structure of the product according to the demand of the market. In general, the proportion of large, sophisticated, complex and long life molds should be improved. service
(3) the adjustment of the mould technical structure. The 21st century has entered the information age, the information age has developed rapidly, the mould industry and the enterprise need to develop must grasp the pulse of The Times, self-consciously adjust the technical structure of oneself. Traditional mould design manufacturing technology must be transformed with advanced and high technology, the technology content of the mould will be gradually improved, and the technology of modern industrial enterprise management will also gradually replace the management mode of the side. The mould industry and the mould enterprise, only the adjustment of the technical structure continuously, can in the rapidly changing market economy neutral in the unfailing land. service
(4) the adjustment of the import and export structure of the mould. In 2005, China's stamping mould imported $726m, exporting $97 billion, and imports and exports to the net import of $529 million, compared with 3.7:1for import and export. China's stamping die exports only account for 5%of production. The structure is clearly unreasonable. In the developed world of mould industry, there are about 30 percent export of die output, and the export mould is much more than the import mould. Although we cannot achieve the import and export structure of the developed world in the short term, we will try to expand our exports and improve the structure gradually. After a few years of hard work, we should make the basic balance of import and export as possible as possible, and should be the goal of our adjustment. service
In the development of informationization, the stamping mould in China must improve as soon as economic globalization tends to accelerate. Through reform and development, various effective measures, in the joint efforts of all workers in stamping die industry, the stamping mould in China will also continuously improve the level, gradually reduce the gap with the world advanced level. Under the guidance of the scientific outlook on development, we will constantly improve the ability of self-development, emphasize innovation, reform and open up, and adopt a new type of industrial road, and gradually change the growth model of speed to the quality and horizontal model, and the level of stamping die in China will inevitably be more than one flo
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