The status quo and development trend of digital display industry in China

1. introduction

Today's information technology has become a key technology to promote the rapid development of science and technology and the national economy. How to use advanced information technology to upgrade and transform China's traditional manufacturing industry and achieve strategic structural adjustment of productivity leapfrog development is an urgent task facing the equipment manufacturing industry. Measurement technology is the key and foundation of information manufacturing technology. Digital measurement technology has become an indispensable key component of digital manufacturing technology. It is an important development direction to adopt a moderately advanced information technology and products to rapidly improve the level of China's equipment manufacturing industry.

In recent years, digital display gauges and digital measuring instruments have developed rapidly: improved technology, enhanced product performance, rich variety specifications, meeting the needs of the evolving advanced manufacturing industry, becoming the mainstream of today's measuring instruments; advanced Digital measurement and control technology and digital digital display measuring instrument, integrated and integrated into digital manufacturing system, built into an advanced closed-loop manufacturing system, laying the foundation for "zero waste" manufacturing; digital digital display online, on-machine measurement technology and Measuring instruments have become an important means of mass production quality assurance. Their product quality statistics function (SPC), production process analysis monitoring and fault diagnosis functions and intelligence are being promoted and applied.

Among the digital digital display displacement sensing technologies and products, today there are mainly gratings, inductosyn, capacitive gates, magnetic grids and ball grids. Several major products have their own advantages and complement each other, and have achieved different degrees of development in the competition. In the field of universal digital display measuring tools, cost-effective capacitive digital display displacement sensing technology and products have been widely used.

The output of the capacitive grid digital measuring tool is large and widely used. Various types of digital calipers, digital display dial gauges, digital display dial gauges, digital display micrometers, digital display internal and external diameter tables, etc., with various varieties and different performances; rapid development in computer information technology and automated digital measurement technology Today, digital measuring tools are replacing the traditional mechanical measuring tools and pneumatic measuring tools with various powerful manufacturing methods, especially in the traditional machinery manufacturing industry, and become the advanced measuring instruments that are dominant in the production field. The digital measuring tools developed by world-famous measuring tools manufacturers such as Mitutoyo of Japan, TESA and Sylvac of Switzerland, Mahr of Germany and Bowers of the United Kingdom have led the development trend in this field. The digital measuring tools are in the manufacturing production sites of foreign industrialized countries. It has been popularized and popularized; similarly, in the advanced production lines of China's automobile manufacturing, compressors, home appliance manufacturing and other product parts, digital measuring tools have also been well applied. Excellent performance in waterproof and dustproof performance, measurement data/graphic display and output, measurement data statistical processing analysis and fault diagnosis, and reliable accuracy, suitable for use in production sites, electronic digital measuring instrument It has become an important tool and means to improve the precision of machine manufacturing and processing efficiency.

In today's economic globalization, the center of world manufacturing is gradually shifting to Asia and China. The reform and opening up and the rapid development of the national economy, especially China's entry into the WTO, have promoted the vigorous development of China's manufacturing industry; the development of automobile manufacturing, aviation manufacturing, home appliance manufacturing, and mold manufacturing has greatly promoted China's precision digital measurement. Control instrumentation and the development of digital digital measurement and control gages. The domestic and international market for digital display gauges is huge and the development prospects are good. As soon as possible, China will transform itself from a manufacturing power of digital display measuring instrument to a manufacturing power of digital display measuring instrument. China's tool industry has a long way to go.

2. The status quo and development of domestic digital display measuring tools

The domestic digital display measuring tools exhibited at the previous China International Machine Tool Exhibition showcased the development of electronic digital display development of mechanical measuring tools in China. With the cooperation of related electronics industry, research institutes and universities, our tool industry has made unremitting efforts over the years, from introduction, digestion and absorption, to self-research and development of advanced electronic transmission with independent intellectual property rights and patents. Sensing digital display technology, mass production of electronic digital display gauge series of products, has achieved remarkable achievements. The domestic digital display gauge has evolved from the simple strip LCD digital display in previous years to the more complex surface liquid crystal dynamic simulation image display. The resolution of the capacitive grid has grown from 0.01mm to 0.001mm, and the measurement accuracy and reliability have been Significantly increased. The ever-increasing waterproof and dustproof performance (from IP54 to IP65, which can now reach IP67) has enhanced the market competitiveness of domestic digital display gauges. China's capacitive grid calipers have been exported in large quantities in recent years, and have occupied a pivotal position in the international market, which is a best example.

According to the statistics of the China Machine Tool Industry Yearbook, in recent years, China's tool industry (including the manufacture of cutting tools and measuring instruments) has made great progress. In 2001, compared with 2000, the total industrial output value increased by 11.8%, the sales value increased by about 11.5%; the total industrial output value in 2002 increased by 20.8%, the sales value increased by 14.8%; the total industrial output value in 2003 increased by 16.1%, the sales value The growth rate was 13.8%; in the first half of 2004, compared with the same period in 2003, the total industrial output value increased by 22.9%, the sales growth reached 29.4%, and the economic growth momentum was strong. According to the statistics and forecast of China's digital industry branch, during the "Eleventh Five-Year Plan" period, the annual growth rate of demand for capacitive grid sensors and capacitive grid gauges will reach more than 20%. By 2010, sales will reach 8-10 billion. Yuan, the development prospects are very promising.

Guilin Guanglu Digital Measurement & Control Co., Ltd., as the leading enterprise in the production and development of domestic digital display measuring tools, its development history is one of the best portrayal of the development of digital measuring tools in China's tool industry. Guilin Guanglu Digital Measurement & Control Co., Ltd. is a high-tech enterprise in Guangxi. It currently has jurisdiction over Wuxi Guanglu Instrument Co., Ltd., Shanghai Guanglu Measurement and Control Technology Development Co., Ltd. and Shanghai Guanglu Measuring Tool Co., Ltd. The company currently has four major categories of products: electronic digital caliper series products (general and dedicated), electronic digital micrometer series products, electronic digital display meter series products and other intelligent, digital precision instrumentation series products. The company's production scale has reached an annual production and sales of 500,000 sets in 2002. More than 80% of its products are exported to more than 30 countries and regions such as Europe and the United States. The domestic market share of products is over 50%, ranking among the same industry in China. First, since 1996, the company's product output, export volume and sales volume have grown at a rate of more than 30% per year, ranking first in the domestic industry. The company has passed ISO9001 (2000 version) international quality management system certification and EU CE safety certification. As the director unit of China Machine Tool Association Digital Display Branch, the company is the largest manufacturer of national electromechanical products export production base, China's largest digital display measuring instrument and 500mm non-standard, special electronic digital display measuring instrument. The output of the digital display and measuring tools accounted for more than 60% of the national similar products. The electronic digital display products produced by the Ministry of Science and Technology, the Ministry of Foreign Trade and Economic Cooperation, the General Administration of Customs, the Ministry of Finance, and the State Administration of Taxation were listed in the 2000 China High-tech Group. The export catalogue of technical products has won the first prize of Guangxi Science and Technology Progress Award; the medium-sized capacitive digital display measuring instrument has also been listed as a national key new product by the State Economic and Trade Commission and the Ministry of Finance. In recent years, the company has 14 technology awards as scientific and technological achievements. The three products have been awarded the first prize of scientific and technological achievements by Guangxi Electronics Industry. They have 14 invention and utility model patent technologies and products and core electronic chips ( Independent intellectual property rights of IC). In recent years, the company has successfully developed a multi-functional capacitive grid displacement measuring device, high-precision electronic digital dial indicator, electronic digital dial indicator, electronic digital micrometer, electronic digital altimeter and electronic column measuring instrument. Wait for dozens of new products. In order to further improve the company's technological innovation capability, in 2001, the company and Shanghai Jiaotong University jointly established a research and development center to jointly improve the research and development level of China's measurement and control technology and the ability of scientific research results to be transformed into productivity. Under the joint efforts of the factory and the school, after three years of hard development, the company has the independent intellectual property rights of eddy current displacement sensor and waterproof caliper manufacturing technology. The waterproof performance of the waterproof digital caliper sample developed successfully in 2004 has reached the international advanced level. Level - IP67, the accuracy has also reached the national standard for digital calipers. This is a good news that has made our country's measuring tool manufacturing industry uplifting. It has broken the situation that the digital technology of digital measuring tools has dominated the world, and has set an example for China's digital measuring tools to develop their own way. Although there are still many new difficulties and problems to be solved in the industrialization of this technology, we have reason to believe that Guanglu people are continuing their efforts and will make greater breakthroughs. During the fifteenth period, the company will also develop new products for digital high-tech electronic measuring tools and measuring and controlling instruments including 9 categories, more than 100 new products and about 1000 specifications.

Guanglu Company attaches great importance to technological innovation, and practice has proved that this is a magic weapon for enterprises to win in market competition. They implemented the technological innovation work as a systematic project, and they often worked hard to achieve good results. Such as the innovation of processing technology: the digital stamping ruler and the frame stamping process are changed to the CNC wire cutting process, which greatly improves the yield, reduces the consumption of raw materials, and greatly improves the production efficiency; the innovation of the capacitive grating process : Ultra-fine laser scribing process replaces the traditional etching process, improving the accuracy and resolution of the product. In view of the shortcomings of the copper-clad substrate that introduces the capacitive sensor, it is easy to get wet and the performance is unstable. The company adopts a new ceramic substrate, and uses the vapor deposition technology to metallize the substrate to become the substrate of the capacitive sensor electronic circuit, thereby improving the measuring tool. The measurement accuracy and resolution also improve the anti-interference and stability of the digital display. In addition, the company's improvement and innovation in product appearance, special functions and other aspects have also achieved good results.

At present, Guanglu Company is paying close attention to the “Technical Reconstruction Project of High-Performance Electronic Component Export Production Base of 1 Million Set of Electronic Digital Display Measuring Instrument with Annual Output of Guanglu,” and the “Technology Innovation Fund of SMEs” issued by the Ministry of Science and Technology. Support projects such as projects. The company's goal is to build Guanglu into the "China's first, world-class" digital display measuring instrument production and sales enterprise, and the "Guanglu" measuring instrument has become an internationally renowned brand.

3. Outlook and conclusion

As mentioned above, China's electronic digital display technology and products have made great progress in recent years, which is reflected in the growth of product quantity and the extension of product specifications. Especially after China's accession to the WTO, the waterproof performance and reliability of digital display technology and measuring tools have been significantly improved, and the export volume has increased substantially. At the same time, the development and promotion of the domestic market has also been developed, and domestic sales have also been A substantial increase. However, compared with foreign advanced digital display gauge products and technologies, there is still a big gap, especially for the general performance of the capacitive grid gauges, especially the large-capacity capacitive grid digital calipers, there is a serious low-cost sales in the industry. The situation of vicious competition. It is reassuring and gratifying that the domestic measuring instrument manufacturing enterprise represented by Guilin Guanglu Digital Measurement and Control Co., Ltd. has increased its investment in the independent development of digital display technology and digital display measuring products in recent years, and has achieved results. , respectively obtained or are acquiring technical patents with independent intellectual property rights. In addition to Guanglu's recently developed eddy current sensing technology with IP67 standard and corresponding digital caliper, its product level has been comparable to the highest level of products in the world. Shenzhen Liansi Precision Machinery Co., Ltd. The waterproof grading caliper patented product with IP65 level and good export momentum, Guilin Measuring Tool & Blade Factory also introduced the information of self-developed waterproof and dustproof high-performance digital caliper, and innovation has become the industry consensus.

Further strengthen the innovation capability of enterprises, improve the accuracy and stability of domestic high-performance digital digital display sensors, improve the ability of digital display gauges to adapt to the processing environment and conditions on the shop floor, and improve the processing and assembly precision of traditional mechanical parts in digital display measuring instruments. Improve the measurement data processing capability and intelligence level of digital display gauges, and improve the production scale while improving and improving the processing technology level to reduce costs. This is the direction of China's digital gauge manufacturing technology development.

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