1 development status of China mould CADPCAEPCAMPPDM
CADPCAEPCAM, a mold manufacturer, is a way to transform traditional molds.
The key technology of this model is a high-tech and efficient system engineering.
It provides an effective assistant for enterprises in the form of computer software.
Help tools, so that engineering and technical personnel with the help of computers on product performance,
The die structure, forming technology, NC machining and production management are designed.
And optimization. CADPCAEPCAM technology can significantly shorten the mold.
With the design and manufacturing cycle, the production cost is reduced and the product quality is improved.
It has become a * * * knowledge in the mold industry.
With the development of CADPCAMPCAE software and other application software
Popularize the application of computer-generated data of various types and formats.
Data, such as market analysis report, product design information, processing drawings and spare parts.
Part machining process analysis, numerical control machining program list and simulation test results
And various instructions. , increasing rapidly. How to manage these differences effectively?
Building data has become a big problem for enterprises. PDM system
As an information exchange platform, the system can be used for various products and
Its related data are managed in a unified way and run through the whole product.
Assist the manager to effectively control and manage the development process.
At the same time, designers have made great efforts in all aspects of the product life cycle.
All the places related to product technology can be obtained in time and accurately.
Product information, as well as product data within a certain scope of authority.
Operation in. The high integration and enjoyment of product data makes
The development time and cost of new products are greatly reduced.
During the Eleventh Five-Year Plan period, China's mold industry
PDM technology has made great progress, which is embodied in the following aspects.
Aspects:
(1) has developed a series of CADP with independent intellectual property rights.
CAMPCAE brand software
Huatian Software, Zhongchuang Software and Japan's largest CADPCAM
The software company UEL cooperates and combines the best practices of Japanese industry to adopt
Adopt the methods of introduction, digestion, absorption and re-innovation to develop and complete medium-sized enterprises.
SINOVA2, a 3D CADPCAM software with independent intellectual property rights in China.
T ion V 1 0。 This indicates that China is soft on 3D CADPCAM.
Major breakthroughs have been made in software research and development. SINOVATION software
It is a 3D CADPCAM integrated application software system.
It has the most advanced hybrid modeling, parametric design and rich functions.
Modeling function. Provide internationally advanced water that has been verified by the industry.
Application technologies such as plane cam processing, stamping die, injection die, etc.
Especially suitable for automobiles, automobile parts, machine tools, general machinery, molds and
Design and processing application of technical equipment industry. Sinova 2
Provide stamping die design solutions for professional designers.
A set of industry-proven CAD solutions, including high technology.
Effective stamping process design, accurate stamping springback compensation and professionalism
Stamping die structure design and other functions. Innovation injection mold
The design and processing solution is based on the design and manufacture of injection mold.
Testing, combining product molding process and engineering analysis software, developing.
Special software package for injection mold design. The scheme adopts three-dimensional parameters.
CAD software based on digital modeling, which covers part design and sub-analysis.
Analysis, automatic parting, mold creation, electrode design and engineering drawing creation, etc.
This process embodies the design concept of high quality, flexibility and efficiency, which is a note.
Plastic mold design provides a professional technical application platform.
CAXA serialized software is famous for developing independent intellectual property rights.
New achievements have been made on the road of brand, such as a new generation of integrated software.
CAXA V5PLM integrates mature 2D, 3D, CAPP and MPM for the first time.
And DDM technology are integrated based on a unified data model,
Covers from conceptual design, detailed design, process flow to manufacturing.
All aspects of management, and help enterprises optimize through digital simulation.
The whole process of product design and manufacturing.
Shanghai Mould CAD National Engineering Research Center is earlier in China.
Started the research of knowledge-based engineering technology (KBE), in plasticity.
Knowledge acquisition and representation of forming and die design, knowledge reasoning machine
System, knowledge integration and management, knowledge discovery, etc.
) 4 1 )
Technically, effective research has been carried out, forming a suitable for different
Development ideas and relationships of different types of knowledge economy systems in different industries.
KBE application software is based on.
State Key Practice of Material Forming and Mould Technology in Huazhong University of Science and Technology
Laboratory-developed injection simulation software/Huasu CAE0, cast into
Shape simulation software/Zhu Hua CAE0 and sheet metal forming simulation software /FAS2
TAMP0 has a new development. At present, the focus of research is micro-macro analysis.
Combining analysis, numerical calculation and artificial intelligence, the goal is to make the module
Quasi-software is upgraded from traditional passive computing tools to active optimization.
System. With the deepening and extensive application, serial simulation software
China plastic CAE, China casting CAE and FASTAMP have become our countries.
Leading technology and famous products with independent intellectual property rights in mold industry.
Cards.
Hunan University takes advanced stamping CAE technology as a breakthrough.
A set includes stamping process design and automobile panel die design and
Serialization software for manufacturing. Its CAE Automatic Modeling System for Stamping Simulation
Unified CADEM2? The numerical control trajectory data of the die surface can be used as
The geometric data source generated by grid doubles the modeling efficiency.
The forming of automobile panel can make the simulation model mesh have the same accuracy.
The number of units decreased by nearly 20% ~ 40%. Stamping simulation CAE system
CADEM2？ Adopt advanced theory and algorithm to ensure the quality of stamping parts
On the premise of large deformation calculation accuracy, the analysis speed is significantly improved.
Stamping process analysis and design system CADEM2? Use shell loss
The stability theory is applied to predict the wrinkling trend in panel forming, and the simulation-based method is adopted.
The real blank back calculation technology realizes the blank shape and shape of complex parts.
Iterative reverse calculation of dimensions.
(2) CADPCAEPCAM technology has been widely used and is being applied.
Remarkable benefits have been achieved in use.
Among them, the biggest technological progress is undoubtedly 3D CAD.
Major breakthrough. FAW Mould, Tianqi Mould, Dongfeng Mould, Futian Weifang
The penetration rate of 3D CAD in mould and other enterprises has reached 100%. other
Key enterprises speed up the transition from 2D CAD to 3D CAD.
Cross. Some well-known foreign enterprises have not yet achieved 100%.
3 d CAD. Due to the adoption of three-dimensional CAD technology, the past was fragmented.
CAD, CAE and CAM in each information island are all connected and true.
This integration provides a technical basis for the full digital manufacturing of molds.
Foundation. The whole process of a few enterprises has been completely digitized.
Prepare for future automatic processing and flexible production.
Actively create production conditions.
Some advanced enterprises adopt cutting after the mold structure design is completed.
Surface inspection, interference inspection, static motion interference inspection, motion simulation, etc.
Analysis means, truly reflect the actual working state of the mold, to ensure authenticity.
Reliability of volume design.
The popularization rate of CAE analysis has obviously improved, and a few enterprises have reached it.
100%, CAE is no longer unattainable technology, let alone high beam.
The decoration of the exhibition hall is an indispensable tool to help designers.
What may happen when debugging the mold during the design phase /foresight 0?
Deal with problems before they happen.
Parametric design has also made great progress. domestic
Some key enterprises have established the basic drawing library of molds, and also established
Standard parts library. According to the characteristics of the die structure, the parametric method is adopted
Point, choose infrastructure, designers only need to control a few basic functions.
The characteristic parameters will be input into the computer in advance according to the structure.
Rules, automatically provide a reasonable structural scheme, designers only need to do a little.
Adjustment and assembly can complete the design. The introduction of design rules makes three
The structural design of three-dimensional solid mold has reached a higher level.
(3) PDM technology continues to develop.
At present, foreign companies have developed some fully functional products.
PDM products with good openness, novel ideas and advanced technology. such as
Iman of UGS, product manager of IBM,
SDRC company mid-term, PTC company cold, etc.
These products are used in Boeing, IBM, Ford, General Motors and other companies.
Now it has been popularized and applied successfully. Some domestic enterprises, such as Chun.
Lan, Haier, Changhong and Konka adopt IMAN system to install aircraft.
The PM system of IBM adopted in the design has also achieved some success.
Work. At the same time, domestic software manufacturers have also launched their own.
PDM products, such as IntePDM of Wuhan Tianyu company and Wuhan kai.
KMPDM of Target Technology Integration Company, Tsinghua Tongfang Software Company.
TFPDMS and other domestic PDM systems, whether in function,
In technology, thought and stability, it is similar to foreign products.
There is a big gap, but it has certain advantages in price and customization.
Therefore, it has also been applied in some domestic enterprises, such as Tianyu Company.
IntePDM system based on, TFPDM system based on Daheng Tongfang Company.
Company's DHPDM system, etc.
2 domestic mold CADPCAEPCAMPPDM and international
Main gap of advanced level
Compared with foreign developed countries, China's mold industry
The development level of CAMPPDM technology is still very low, and there is a big gap. primary
It is manifested in the following aspects:
(1) The progress and level of software development are low.
At present, the core technology of 3D CADPCAM software is still in the palm.
In the hands of developed countries such as Europe, America and Japan. , mold occupies the mainstream position.
CAD software mainly includes ProPE, I2DEAS, UG, etc. And China came in third.
CADPCAM market is almost completely monopolized by foreign products. Every year
The amount of 3D CADPCAM software purchased by China manufacturing enterprises is as high as.
) 42 )
5 Electric Machining and Mould 620 10 Supplementary Special Edition
Billions of yuan, and increasing at the rate of 20% every year. such
The embarrassing situation not only makes manufacturing enterprises bear high cost pressure
Force, and the core tools to support product innovation are subject to people and heavy.
Big information and intellectual property security risks. And CADPCAEP in China.
The research and development of CAMPPDM technology is not well organized and planned.
Planning and paying attention to it leads to low-level duplication of work and influence.
The progress and improvement of software development, whether in function, technology
Compared with foreign products in operation, thought and stability.
There is a big gap.
(The application level of CADPCAM is obviously different.
CADPCAM technology has been obtained in domestic mold production.
Widely used. But for some large domestic mold enterprises, they
The application of CADPCAM mostly stays in purchasing advanced foreign products.
CADPCAM system and equipment based on and its secondary development.
Less, low resource utilization rate; Some small and medium-sized mold enterprises in China
CADPCAM is rarely used, and some just stay in the computer place.
Draw on the drawing board.
(3) CAE has not been widely used.
The application of CAE in China mold industry has just started, but
In enterprises with strong economic strength, such as FAW, Dongfeng and Haier.
Bit, just bought a small amount of commercial software and began to try it out.
(4) The information integration technology is backward.
The extensive integration of information technology is based on product data management.
(PDM) and process management (PM) to realize CADPCAM.
PDM is also very important in concurrent engineering.
The foundation of. However, China's research in this field has just begun and has already
There is no mature PDM system in domestic market. Therefore,
This kind of basic software has also been occupied by foreign systems.
(5) CADPCAEPCAM lacks knowledge integration.
Due to the lack of integration of design knowledge, mold design scheme
Selection and optimization of process parameters and die structure, and evaluation of formability
Wait, it still depends on mold designer's experience. Design knowledge is an enterprise.
The most valuable intellectual asset is the guarantee of enterprise competitiveness. Zaimu
Before the injection mold design industry, this knowledge mainly existed in the form of experience.
Mastered by senior design engineers, with their retirement and loss.
It will inevitably lead to the loss of enterprise core technology and directly lead to enterprise competition.
Competition is declining. CADPCAM system based on knowledge has been widely used abroad.
System, such as the design guide of multi-position progressive die of UGS company in the United States.
CAD system (progressive die guide) and the design direction of injection mold
Guide CAD system (mold guide), the two systems are seamlessly integrated.
In the company's three-dimensional mechanical CADPCAM system UG, for use.
Users provide the design environment and tools for progressive dies and injection molds, and will.
The professional knowledge of mold design provides a wealth of standardized mold bases.
Library, Part Library and Insert Library.
There are many reasons for the above gap, except for the long history.
In the past, as a product, molds have not received due attention, and there are also
List several main reasons:
(1) There is too little investment in scientific research and development and technical research. Due to the mold
The efficiency of enterprises is poor, and insufficient attention is paid to scientific research and development and technical research.
If the investment is too small, scientific research units and colleges and universities will be concentrated.
From the perspective of income, the pace of scientific and technological progress in the mold industry is not great, and the progress is slow.
Slow down.
(2) There is a serious shortage of talents. Mold industry is technology-intensive and capital-intensive.
Gold-intensive and labor-intensive industries, with the progress of the times and technology,
The talents who develop, master and apply new technologies are extremely scarce, and their technical quality is poor.
Advanced mold design and manufacturing technology and technical personnel, skilled workers and enterprises
Industry management talents are also very scarce. Especially the lack of extensive knowledge and insight.
Compound talents with high structural level.
(3) Lack of advanced technology and equipment. Most modules in China.
The mold processing equipment in factories and workshops is outdated, with long service life and poor accuracy.
Low efficiency. In recent years, many advanced mold processing equipments have been introduced.
Equipment, but too scattered, or not matching, the utilization rate is generally only about 25%.
Yes, some advanced functions of the equipment have not been brought into play.
(4) Backward management is worse than backward technology. Backward technology often
It is easy to see that backward management is sometimes difficult to achieve. Domestic and foreign models
The gap in enterprise management is very obvious, which is caused by the gap in management.
The problem is often more serious than the technology gap.
3 China Mould CADPCAEPCAMPPDM Development Purpose
Standards and main tasks
During the "Twelfth Five-Year Plan" period, the main goal of China mold industry is comprehensive.
The main task of popularizing CADPCAEPCAMPPDMPPDM technology is
Yes:
(1) Develop products with independent intellectual property rights suitable for China's national conditions,
Have a high level of mold design, processing and mold enterprise management software.
Software, constantly improve the degree of intelligence and integration of software, and promote it.
Use.
(2) Studied the classification of die and the parametric measurement of die structure.
Model, realize the standardization and parameterization of mold parts, and form the mold.
Supporting software of CADPCAM system software;
(3) Realizing three-dimensional integrated design. He is currently a master of mold design.
By combining 3D design with 2D design, during the development,
There are some problems such as error-prone, low efficiency and difficult quality control, so it is necessary to study them.
Realize the full three-dimensional design process. Enjoy technology through data * * *
At present, the effective integration of various application software at various stages can realize mold design.
Integration.
) 43 )
Special Manuscript 5 Electromachining and Die 620 10 Supplement
(4) In-depth study of the overall optimization technology of the mold, including the mold.
Cost estimation, die assemblability, die formability and reliability.
Sex, integrated into the general modeling design system widely used in mold industry.
In fact, the opening of the mould CADPCAEPCAM system for manufacturing industry has been completed.
Send.
(5) Study the parameters, generality, standards and parameters of mold design and manufacturing.
The module and expert system composed of experience are reformed to form the mold.
CADPCAEPCAM database
(6) to speed up the development of PDM technology, from a single computer letter
Information management extends to/manages all product-related information.
Technology 0 of product-related process, realizing high collection of product data.
And * * * enjoy.
(7) Promote domestic key mold enterprises to fully adopt molds.
CADPCAMPCAEPPDM production technology.
4. Development priorities and major issues of products and technologies.
4. 1 development priorities
Research and development of (1) 3D CADPCAM technology. Develop an independent
CADPCAE software, the main intellectual property, has reached the international advanced level.
Level.
(2) The function of domestic mold CAE software is upgraded and internationalized.
Well-known independent brands.
(3) Research and development of domestic PDM system. Perfect function and improve sex.
Stability, strengthen the popularization and application.
(4) Research and development of mould digital design and manufacturing system.
(5) To popularize the integrated technology of CADPCAEPCAM for molds, we should
Use.
(6) Research and development of reverse engineering, concurrent engineering and agile manufacturing technology.
And popularization and application.
(7) Mold integration, flexibility and automatic processing technology and network.
Research, development and application of virtual technology.
4.2 main problems
(1) research and development of digital design and manufacturing system for key products,
Such as stamping process design system, die surface design system and forming analysis.
System, mold structure design system, mold CAM system and punching machine.
Digital design and manufacturing system of body mould based on expert consultation system.
(2) High-performance modules suitable for super parallel computers and clusters.
Adopt CAE solution technology.
(3) Data mining and intelligent evaluation of die CAE analysis results.
Estimate.
(4) Seamless integration of mould CAE and mould CADPCAM.
(5) Development and application of PDM system for mold manufacturing.
(integration of PDM and CADPCAMPCAE.
(7) CADPCAEPCAM technology mode based on network environment.
Analysis of collaborative design in different places.
(8) Research and development of knowledge base system for mold design.
5 Development of CADPCAEPCAMPPDM in China
suggestion
(1) It is suggested that relevant government departments set up a mold development fund to
* * * technology development, research and innovation projects in the mold industry, and to
/Leading enterprise 0 is the key support. We should vigorously support the relevant state departments.
Insist on and strengthen cooperation with Industry-University-Research to promote scientific and technological development and progress of mold industry.
Research work, organize the division of labor and cooperation of key units in Industry-University-Research,
Work together, strive for early results, more results, and enjoy the results together.
And make the results industrialized, so as to quickly improve the technical level of the industry. use
Electronic information engineering and other high-tech and advanced applicable technologies to transform enterprises.
The traditional mode of production transforms advanced technology into productive forces.
(2) Establish a service system that benefits small and medium-sized enterprises. model
The furniture industry is small and medium-sized enterprises except individual enterprises, with limited strength, especially
What is more inadequate is the development of information and technology, which is difficult for them to accomplish.
They all entered the market on their own. If we can set a goal,
Industry service system of small and medium-sized enterprises, especially information and technical services.
System, so that the majority of small and medium-sized enterprises benefit from it, will certainly benefit the industry.
Revitalization and development.
(3) Give full play to the role of universities and scientific research units with enterprises as the main body,
Do a good job in the combination of Industry-University-Research, realize the industrialization of achievements as soon as possible, and vigorously improve the model
With the level of production technology.
(4) Independent development and introduction. By introduction, I mean introduction.
Commercialized CADPCAEPCAM software and equipment, and cited
Strengthen the secondary development of advanced software. Import of software and equipment
, the corresponding personnel training is very important.
Welcome to subscribe to 5 EDM and Mould 6.
5 Electromachining and Molding 6 mainly reports special machining and mold manufacturing.
Design research achievements, process application technology and application dimension in manufacturing field
Maintenance experience, product development information and industry development trend.
5 Electromachining and Mould 6 is a bimonthly publication, which is distributed at home and abroad.
Please subscribe to post offices all over the country, or edit this magazine directly.