Present situation and development trend of mechanical manufacturing technology

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In automation technology,

Based on information technology and manufacturing technology,

Through computer

And its software,

Organically integrate all kinds of decentralized automation systems required for all production activities in the factory.

Integrated, suitable for multi-variety, small and medium-sized batch production, with overall efficiency and flexibility.

The manufacturing system is based on.

First of all, functionally,

It includes all production and business activities of the factory.

That is, from market forecast, product design, processing technology, manufacturing and management to after-sales service and report.

All activities of waste disposal.

Therefore, it is much more extensive than the traditional factory automation.

be

Complex large-scale system is the development direction of factory automation. Secondly, in terms of integration, it

The automation involved is not a simple superposition of automation in all aspects of the factory.

But in a computer network.

Organic integration of network and distributed database support.

This integration is mainly reflected in information and

Technology integration characterized by function,

Namely information integration and function integration.

Computer integrated manufacturing department

The core technology of the system is

CAD/cAM

Technology.

1. 1.2

Intelligent manufacturing system

(IMS)

Refers to the expert system,

Fuzzy logic,

Application of artificial intelligence technology such as artificial neural network.

Enter the manufacturing system,

In order to solve complex decision-making problems,

Improve the level and practicability of manufacturing system.

Make love.

The role of artificial intelligence is to replace the skills of skilled workers.

Learning engineering and technical personnel

Practical experience and knowledge, and used to solve practical problems in production, so that workers, engineering

The rich and valuable practical experience accumulated by technicians over the years has been preserved.

Zaishi

International production has long played a role. The core technology of intelligent manufacturing system is artificial intelligence.

1. 1.3

concurrent engineering

(CE)

Also known as synchronous engineering or synchronous engineering,

It is aimed at traditional production.

Concepts and methods put forward in the process of product series development.

Integrated concurrent engineering,

Parallel arrangement

A systematic method for computing products and their related processes.

This method requires developers to start with design.

Consider all the factors in the whole life cycle of the product from the beginning.

Including the product manufacturing process,

Quality,

Cost,

Progress and user requirements, etc.

Concurrent engineering develops products by forming multi-disciplines.

Working as a group,

Using various computer-aided tools and other means,

Make every product develop.

Stage, with a certain time sequence, can be parallel, and adopt various factors of upstream and downstream at the same time.

Determine the working methods at all stages of product development,

Production can be found in time at the initial stage of product development.

Problems in the whole process of product development, thus shortening the product development cycle, improving product quality and reducing

Low cost,

Increase the competitiveness of enterprises.

Concurrent engineering emphasizes parallel work in an integrated environment,

Therefore, it is

Computer integrated manufacturing system

The direction of further development.

1. 1.4

Agile manufacturing

(morning)

Also known as agile manufacturing, rapid manufacturing and flexible manufacturing, it is a flexible production technology,

A labor force skilled in production skills and knowledge and promoting mutual cooperation within and between enterprises.

Integrated flexible management of cooperation,

Through the established infrastructure,

Yes, get dressed quickly.

Respond quickly to changing or unpredictable consumer demand and market opportunities.

The foundation of agile manufacturing

This principle adopts standardized and specialized computer network and information integration infrastructure,

along with

Based on the principle of competition and cooperation, distributed structure connects various enterprises to form a virtual manufacturing environment.

Dynamically selecting partners in the virtual manufacturing environment,

And through the formation of virtual enterprises to adapt to holding.

Continuous and unpredictable market changes. The core of agile manufacturing is virtual company and virtual enterprise.

The company is mapped into a virtual manufacturing system,

Virtual manufacturing system is the key to agile manufacturing.

Agile manufacturing

Is a strategic decision,

It enables all partners to ensure their own interests,

And then get

* * * Brand-new production organization mode and manufacturing mode with consistent interests.

At present,

Agile manufacturing still

In development research

[ 1]

.

1.2

domestic situation

In recent ten years, China has vigorously promoted its application.

Computer integrated manufacturing system

Technology,

20

hundred years

90

Early s

The research environment has been established, including

Computer integrated manufacturing system

Experimental engineering center and

seven

An open laboratory.

Across the country,

deploy

Computer integrated manufacturing system

Several research projects,

such as

Computer integrated manufacturing system

Software engineering and

Standardized and open architecture and development strategy,

Computer integrated manufacturing system

Holistic and integrated technologies and products

Design automation, process design automation, flexible manufacturing technology, network and database technology.

And system theory and method.

All the research has achieved fruitful results.

Get different distances

Degree of progress. In recent years, some large and medium-sized key enterprises have been industrialized.

Computer integrated manufacturing system

worker

Cheng. For example, Chengdu Aircraft Industry Corporation, take the country as an example.

Computer integrated manufacturing system

Experimental engineering is supported by technology, and Tsinghua

University,

Nanjing University of Aeronautics and Astronautics,

Northwestern Polytechnical University and other units jointly developed the computer group.

Manufacturing system engineering,

With the support of the company's computer network and distributed database,

Youguan

Management information system,

Quality information system,

Organic combination of engineering information system and workshop automation system

OK,

Forming computer-aided management,

Design,

Management,

A preliminary manufacturing integrated system,

Meet the needs of aviation product development and multi-variety and small batch production.

But China's machinery manufacturing industry

There is still a certain gap between the technical level and the developed countries.

Most large machinery manufacturing enterprises and

Most small and medium-sized machinery manufacturing enterprises are mainly limited to

Computer aided design

And management information system.

2

Development direction of modern machinery manufacturing technology

The development of modern machinery manufacturing technology is mainly manifested in two directions:

One is precision engineering.

The technologies represented by micro-machining and nanotechnology, the frontier parts of ultra-precision machining, will

Entering the era of micro-electromechanical technology and micro-robot,

Second, the height of mechanical manufacturing comes from

Dynamic, to

Computer integrated manufacturing system

And agile manufacturing.

2 1

Century manufacturing

There is a direction for development. Three "to summarize, namely globalization, virtualization and greening.

2. 1

globalization

The globalization of manufacturing industry can be said to be

2 1

The most important development of automation in machinery manufacturing industry in this century

Trend. In recent years,

In various industrial fields, international operation has not only become a big company, but also

It has become an important factor for the success of SMEs.

The first technology of global manufacturing

The foundation is the network.

With the rapid development and popularization of network communication technology,

Gave it to the enterprise

Production and business activities have brought about revolutionary changes.

Product design,

Material selection,

Parts manufacturing,

Market development and product sales can be carried out in different places or across national boundaries to achieve global manufacturing.

Change.

The second technical foundation is integration and standardization,

In fact, manufacturing in different places is to realize products.

Information integration, function integration, process integration and enterprise integration. The foundation and key to realize integration.

It is standardization, so to speak, there is no globalization without standardization.

2.2

virtualization

Virtualization refers to the virtual technology in the design process and the virtual technology in the manufacturing process.

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Simulation can greatly speed up product development and reduce development risks.

In product design

Virtual reality technology refers to product-oriented structure and performance analysis technology.

So as to optimize that performance of the product itself.

And includes product motion simulation and interference testing, dynamic analysis and modeling.

Design, ergonomic analysis, finite element calculation of strength and width, etc.

Virtual technology refers to the simulation and inspection of product production process and the inspection of product machinability.

Rationality of performance, processing method and technology, so as to optimize the manufacturing process of products and ensure the quality of products.

Quantity, production cycle and the lowest cost as the goal, to plan, organize and manage the production process, car

Internal scheduling,

Modeling and simulation of supply chain and logistics design.

The core of virtualization is computer simulation.

Really.

The real system is simulated by simulation software,

Ensure the combination of product design and product technology.

Rationality, ensure the success of product manufacturing and production cycle, and discover the inevitability in design and production.

Defects and mistakes.

2.3

Green skin apple

Promulgate and implement

ISO9000

Series of international quality standards and

IS0 14000

International ring

The maintenance standard puts forward a new task for the manufacturing industry, that is, to realize green manufacturing quickly.

Green manufacturing is realized through green production process.

(

Green design, green materials, green equipment, green

Color technology, green packaging and green management

)

Produce green products and reuse them after use.

Recycling after green treatment.

Adopting green manufacturing can minimize manufacturing.

Negative impact on the environment,

At the same time, the utilization efficiency of raw materials and energy can reach the highest.

how

The most effective use of resources and the least reduction of environmental pollution,

It is placed in front of manufacturing enterprises.

A major problem.

Green manufacturing is a comprehensive consideration of environmental impact and resource efficiency.

Generation manufacturing mode.

Essentially, it is the embodiment of the sustainable development strategy of human society in modern manufacturing industry.

Now, it is also an important issue that must be considered in the future manufacturing automation system.