Mold processing equipment needs to improve processing performance, mainly reflected in:
1. The increasing size of mold-formed parts and the high productivity of parts require a multi-cavity, resulting in a larger and larger mold. Large-scale large-tonnage molds can reach 100 tons, and a few hundred cavities and thousands of cavities require mold processing equipment. Table, increase Y-axis Z-axis travel, large load-bearing, high rigidity, high consistency.
2. The mold steel material processed by the mold has high hardness, and the mold processing equipment is required to have thermal stability and high reliability.
3. For complex cavity and multi-functional composite molds, with the complexity of the shape of the workpiece, it is necessary to improve the design and manufacture level of the mold. A variety of grooves, multiple materials are formed in a set of molds or assembled into a multi-functional composite of components. The mold requires a large amount of processing programming procedures, has a high-depth cavity comprehensive cutting ability and high stability, and improves the processing difficulty.
4. The refinement of mold processing makes the compounding and high efficiency of processing equipment more attractive. High-speed milling has many advantages such as high-hardness materials that can be processed, smooth processing, small cutting force, and small temperature rise and deformation of the workpiece, which makes mold companies pay more and more attention to high-speed machining.
5. High dynamic accuracy. The static performance introduced by the machine tool manufacturer (such as repeat positioning accuracy and linear feed rate) does not reflect the actual machining situation when the mold is three-dimensionally machined. The high-precision machining of the three-dimensional surface of the mold also requires high dynamic precision performance, and high-speed and high-precision can be realized only by matching the high rigidity, thermal stability, high reliability and high-quality control system of the machine tool.
6. The combination of processing technology and green product technology will be taken into account when purchasing equipment. The radiation and medium selection of electric processing machine tools will be the factors of safety and environmental protection. EDM milling technology will be developed in the future mold processing field.
7. The composite application of various measurement technologies, high-speed measurement and reverse engineering have become the development direction of promoting mold participation in product development and design technology.
With the continuous development of CMM, scanner and laser tracker technology, “online measurement†makes the measuring machine “toolingâ€, which requires more adaptability, and the detection technology is high speed, high precision and high. Adaptability. The main function of the CMM mainframe is to collect coordinate data through contactless or laser scanning and other non-contact methods. After data processing, the reconstructed workpiece is completed. Modern measurement technology is continuously integrated into product research and development. Under the system of reverse engineering design and manufacturing, the inseparable relationship between mold and mold parts design and manufacture is more obvious. Luo Baihui said that today's mold enterprises take the mold as the carrier and actively explore the production of mold parts, which is an important production method. The demand for mold parts and equipment is strong. In 2007, China produced 173,000 molding equipment, including 3000 CNC molding equipment; 3,844 imported forging stamping equipment and 4,671 other molding equipment.
It is understood that the current world sales of cutting tools exceeds 10 billion US dollars, and the industrialized European, North American, Japanese and Australian markets account for 75% to 80%. In Asia, China is also an important market. In the current manufacturing industry in developed countries, cemented carbide tools have accounted for more than 70%, and the share of traditional high-speed steel tools has fallen below 30%. In China's machinery manufacturing industry, which is engaged in global competition, the pursuit of efficiency is also increasing. The demand for high-efficiency, high-efficiency, high-reliability, and special-purpose modern high-efficiency tools is becoming more and more urgent. Carbide tools and ceramic tools are widely used in mold companies. According to Luo Baihui, China's tooling demand is more than 8 billion yuan. Among them, high-precision, high-efficiency and high-reliability modern tools, such as hard alloys and ceramics, can be used for indexing tools of about 1.5 billion yuan. Of the renminbi, 80% to 85% are imported, and more than 90% of tool imports are used in mold making. The complexity and precision of the molds require the quality of the cutting tools required. Many foreign famous tool manufacturers such as Sweden SANDVIK, Seco Tools SECO, Lanzhi, SPINNER, and NIKKEN Etc., Japan's DIJET, BIG, OSG, Japan Sumitomo Electric.