At present, although the scale of China's mold industry is second only to Japan and the United States, due to the relatively late start of China's mold technology, there has been a big gap between the development experience of developed countries and the developed countries for hundreds of years. In recent years, through the introduction of foreign capital, absorbing the advanced experience, advanced technology and high-level talents of foreign mold manufacturing, the design and manufacturing level of China's molds has been greatly improved. Especially in the past 10 years, in the rapid development and driving of automobile and motorcycle manufacturing, home appliance manufacturing and IT manufacturing, the output, quality and level of molds have also been continuously improved.
China's mold manufacturing is booming. The machine tool industry is quite promising. Now China has been able to produce a complete set of automotive molds for B-class and below grade cars and other passenger cars and commercial vehicles. The precision for the electronics industry is 2μm and the service life is 200 million times. The above-mentioned precision high-speed multi-station progressive die, single die with a die weight exceeding 100 tons, large multi-station progressive die up to 6 meters, many high-level molds such as light guide plate mold, CD mold, biochip mold, etc. . The multi-station progressive die produced by some companies can be used on high-speed punching machines of 2000 times/min with an accuracy of 1μm. In terms of large-scale plastic molds, plastic molds such as plastic shell molds, automobile bumpers and integral instrument panels for 43-inch large-screen color TVs and 65-inch rear-projection TVs have been produced in China. In terms of precision plastic molds, we have been able to produce camera and mobile phone plastic parts molds, multi-cavity small modulus gear molds and 7800 cavity plastic molds with an accuracy of 5μm.
In 2008, before the outbreak of the financial crisis, China’s sales of mold products were about 95 billion yuan. If the average annual investment of 15 billion yuan, the ratio of input to output of fixed assets is roughly 1:1, about 60% of the investment is used for When purchasing new equipment for calculation, an average of about 9 billion yuan will be purchased each year for the purchase of various equipment. This is an estimate of the equipment market in the mold industry. Although this equipment market is only a small proportion of the total size of the machine tool industry, it should not be ignored. Even if the market share of foreign-funded enterprises mainly adopts foreign equipment is removed, there will be at least 6 billion yuan of equipment market per year for the domestic machine tool industry. If domestic equipment levels and services are competitive, foreign-invested companies are also willing to purchase cheap domestic equipment. After the outbreak of the financial crisis, the 4 trillion investment in the equipment manufacturing industry stimulated and spurred, and during the economic crisis, producers accelerated the research and development of new products, and the market demand for molds did not fall sharply. The mold market maintains a stable and upward trend, bringing a broad market space for the machine tool industry.
The machine tool enterprises should not be very active in dealing with the individuality of mold manufacturing. With the development of the manufacturing industry, the miniaturization of product parts and the improvement of precision requirements, the requirements for mold processing accuracy are getting higher and higher. Some molds require machining accuracy of less than 1 μm, which requires the development of super finishing. Micron-scale precision machining for automobiles, airplanes, precision machinery; sub-micron (0.01μm) precision machining for disk and drum manufacturing; nanometer (0.001μm) precision machining for ultra-precision electronics.
The increasing size of mold-forming parts and the high productivity of parts require a multi-cavity mold. The molds of several tons to several tens of tons are very common, with a few hundred cavities and even thousands of cavities. Therefore, it is required that the machine table can bear a large weight, which requires the device to have a large load-bearing and high rigidity characteristics, and must have a sufficiently large table size and working stroke to be adapted. In addition, the mold cavity is mostly composed of complex space six curved surfaces and grooves, and many molds have deep cavity, which requires the machine tool to have multi-axis linkage and good deep cavity cavity comprehensive cutting ability to achieve 3D surface. High precision, high speed and high stability processing.
High-speed and high-power high-speed machining is the development direction, and high-speed milling has shown great advantages in mold processing. In order to adapt to the machining of the mold cavity surface, the radius of the tool should be smaller than the minimum circumferential radius of the cavity surface to avoid "interference" between the tool and the workpiece during the machining process. Due to the small diameter of the tool, the spindle speed is very high, and the spindle speed of foreign high-speed machining machine tools has reached 40,000 to 100,000 r/min. The cavities and other parts of the mold parts are often finished in a single clamping of the workpiece, so the spindle power is large, and the spindle power of the medium-sized mold milling machine and machining center is often 10~40kW, and some even higher. In order to adapt to complex space surface machining, and a large amount of machining, it is required to have multi-axis linkage of the machine tool and a numerical control system with large information capacity.
In addition, a variety of grooves, a variety of materials in a set of molds formed or assembled into a multi-functional composite mold, requires a large amount of processing programming; fine processing of the mold to make the processing equipment complex and tool High efficiency is more attractive; high-speed milling has the advantages of processing high-hard materials, smooth processing, small cutting force, small temperature rise and deformation of the workpiece, etc., which makes mold enterprises pay more and more attention to high-speed machining; composite application of various measurement technologies High-speed measurement and reverse engineering have become important forces driving the development of mold products, design and manufacturing technology.
On the one hand, the scale of the mold market is expanding year by year. The increasing demand for machine tools has brought more and more opportunities to the machine tool industry. On the other hand, the machine tool enterprises are not positive about this cake. . Some experts in the industry also expressed regret over this phenomenon: "There are about 500 domestic gold-cutting machine tool manufacturers, about 150 CNC machine tool manufacturers, and there are about 30 CNC machines with the ability to do molds, but the machine tools entering the mold market. Enterprises are far from reaching this number, which is really a pity." Because the production of mold equipment requires machine tool companies to increase investment, but also need to adjust the production line to meet the requirements of mold production, which is also the domestic machine tool enterprises for the mold market and Not a reason to be very keen. Moreover, the one-off contract amount of the mold company is small, unlike some enterprises, there are more than a dozen batch orders at a time. In addition, because the machine tool for the mold has higher processing requirements than the part processing, such as numerical control system, transmission equipment, precision parameters, etc., it has its own reasonable and reasonable requirements, which brings difficulties to the research and design and design of domestic machine tool enterprises. Under this circumstance, machine tool companies believe that the input-output ratio of mold manufacturing equipment is too small, and it is inevitable that they are not willing to invest in this field.
In view of the fact that the domestic machine tool industry does not pay much attention to the equipment market in the mold industry and the low market share of domestic equipment in this market, experts rumor that the machine tool industry should pay close attention to the development of the mold industry, pay attention to the equipment market in the mold industry, and should be in the long run. Start from the development, understand from a strategic height, and fully research and correctly position this market. Mold processing requires a variety of equipment, the situation is also different, you can start from the middle and low-end products, and then gradually develop to the high-end, this may be a more practical approach. Although China is already a big mold country, in order to achieve the goal of becoming stronger and stronger, we must vigorously develop high-quality manufacturing equipment with independent intellectual property rights. Domestic machine tool enterprises must grasp this good opportunity. In the development of China's mold industry, they will insert their wings and truly play a positive role in helping their development.
China's mold manufacturing is booming. The machine tool industry is quite promising. Now China has been able to produce a complete set of automotive molds for B-class and below grade cars and other passenger cars and commercial vehicles. The precision for the electronics industry is 2μm and the service life is 200 million times. The above-mentioned precision high-speed multi-station progressive die, single die with a die weight exceeding 100 tons, large multi-station progressive die up to 6 meters, many high-level molds such as light guide plate mold, CD mold, biochip mold, etc. . The multi-station progressive die produced by some companies can be used on high-speed punching machines of 2000 times/min with an accuracy of 1μm. In terms of large-scale plastic molds, plastic molds such as plastic shell molds, automobile bumpers and integral instrument panels for 43-inch large-screen color TVs and 65-inch rear-projection TVs have been produced in China. In terms of precision plastic molds, we have been able to produce camera and mobile phone plastic parts molds, multi-cavity small modulus gear molds and 7800 cavity plastic molds with an accuracy of 5μm.
In 2008, before the outbreak of the financial crisis, China’s sales of mold products were about 95 billion yuan. If the average annual investment of 15 billion yuan, the ratio of input to output of fixed assets is roughly 1:1, about 60% of the investment is used for When purchasing new equipment for calculation, an average of about 9 billion yuan will be purchased each year for the purchase of various equipment. This is an estimate of the equipment market in the mold industry. Although this equipment market is only a small proportion of the total size of the machine tool industry, it should not be ignored. Even if the market share of foreign-funded enterprises mainly adopts foreign equipment is removed, there will be at least 6 billion yuan of equipment market per year for the domestic machine tool industry. If domestic equipment levels and services are competitive, foreign-invested companies are also willing to purchase cheap domestic equipment. After the outbreak of the financial crisis, the 4 trillion investment in the equipment manufacturing industry stimulated and spurred, and during the economic crisis, producers accelerated the research and development of new products, and the market demand for molds did not fall sharply. The mold market maintains a stable and upward trend, bringing a broad market space for the machine tool industry.
The machine tool enterprises should not be very active in dealing with the individuality of mold manufacturing. With the development of the manufacturing industry, the miniaturization of product parts and the improvement of precision requirements, the requirements for mold processing accuracy are getting higher and higher. Some molds require machining accuracy of less than 1 μm, which requires the development of super finishing. Micron-scale precision machining for automobiles, airplanes, precision machinery; sub-micron (0.01μm) precision machining for disk and drum manufacturing; nanometer (0.001μm) precision machining for ultra-precision electronics.
The increasing size of mold-forming parts and the high productivity of parts require a multi-cavity mold. The molds of several tons to several tens of tons are very common, with a few hundred cavities and even thousands of cavities. Therefore, it is required that the machine table can bear a large weight, which requires the device to have a large load-bearing and high rigidity characteristics, and must have a sufficiently large table size and working stroke to be adapted. In addition, the mold cavity is mostly composed of complex space six curved surfaces and grooves, and many molds have deep cavity, which requires the machine tool to have multi-axis linkage and good deep cavity cavity comprehensive cutting ability to achieve 3D surface. High precision, high speed and high stability processing.
High-speed and high-power high-speed machining is the development direction, and high-speed milling has shown great advantages in mold processing. In order to adapt to the machining of the mold cavity surface, the radius of the tool should be smaller than the minimum circumferential radius of the cavity surface to avoid "interference" between the tool and the workpiece during the machining process. Due to the small diameter of the tool, the spindle speed is very high, and the spindle speed of foreign high-speed machining machine tools has reached 40,000 to 100,000 r/min. The cavities and other parts of the mold parts are often finished in a single clamping of the workpiece, so the spindle power is large, and the spindle power of the medium-sized mold milling machine and machining center is often 10~40kW, and some even higher. In order to adapt to complex space surface machining, and a large amount of machining, it is required to have multi-axis linkage of the machine tool and a numerical control system with large information capacity.
In addition, a variety of grooves, a variety of materials in a set of molds formed or assembled into a multi-functional composite mold, requires a large amount of processing programming; fine processing of the mold to make the processing equipment complex and tool High efficiency is more attractive; high-speed milling has the advantages of processing high-hard materials, smooth processing, small cutting force, small temperature rise and deformation of the workpiece, etc., which makes mold enterprises pay more and more attention to high-speed machining; composite application of various measurement technologies High-speed measurement and reverse engineering have become important forces driving the development of mold products, design and manufacturing technology.
On the one hand, the scale of the mold market is expanding year by year. The increasing demand for machine tools has brought more and more opportunities to the machine tool industry. On the other hand, the machine tool enterprises are not positive about this cake. . Some experts in the industry also expressed regret over this phenomenon: "There are about 500 domestic gold-cutting machine tool manufacturers, about 150 CNC machine tool manufacturers, and there are about 30 CNC machines with the ability to do molds, but the machine tools entering the mold market. Enterprises are far from reaching this number, which is really a pity." Because the production of mold equipment requires machine tool companies to increase investment, but also need to adjust the production line to meet the requirements of mold production, which is also the domestic machine tool enterprises for the mold market and Not a reason to be very keen. Moreover, the one-off contract amount of the mold company is small, unlike some enterprises, there are more than a dozen batch orders at a time. In addition, because the machine tool for the mold has higher processing requirements than the part processing, such as numerical control system, transmission equipment, precision parameters, etc., it has its own reasonable and reasonable requirements, which brings difficulties to the research and design and design of domestic machine tool enterprises. Under this circumstance, machine tool companies believe that the input-output ratio of mold manufacturing equipment is too small, and it is inevitable that they are not willing to invest in this field.
In view of the fact that the domestic machine tool industry does not pay much attention to the equipment market in the mold industry and the low market share of domestic equipment in this market, experts rumor that the machine tool industry should pay close attention to the development of the mold industry, pay attention to the equipment market in the mold industry, and should be in the long run. Start from the development, understand from a strategic height, and fully research and correctly position this market. Mold processing requires a variety of equipment, the situation is also different, you can start from the middle and low-end products, and then gradually develop to the high-end, this may be a more practical approach. Although China is already a big mold country, in order to achieve the goal of becoming stronger and stronger, we must vigorously develop high-quality manufacturing equipment with independent intellectual property rights. Domestic machine tool enterprises must grasp this good opportunity. In the development of China's mold industry, they will insert their wings and truly play a positive role in helping their development.
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