Precision mold, in every link must be perfect, otherwise it is not called precision two words; From the template material to the flatness of the template, is the basis of a set of precision mold; Just like super high floors, super high floors can only be built when the foundation is solid. Only when the gloss and flatness of the template surface are perfect, is the beginning of a set of precision mold processing. The following Xiaobian describes how to define precision mold? How to improve machining performance? Welcome to read!
What is the definition of precision die?
1 Die is used as a precision forming tool for batch forming, stamping and other products. Die accuracy includes the accuracy of parts obtained in processing and the quality awareness to ensure the accuracy of products during production, but usually the die accuracy mainly refers to the accuracy of the working parts of the die.
①. The concept of precision in die processing refers to the degree of conformity between the actual geometric parameters and the designed geometric parameters of die parts after processing and assembly.
(2) The concept of precision in mold production refers to a kind of thinking mode and quality awareness gradually formed by enterprise workers in production practice to guide their production behavior, that is, in the behavior of enterprise workers, always grasp the quality awareness of product accuracy.
2. The content of die accuracy includes four aspects: dimensional accuracy, shape accuracy, position accuracy and surface accuracy. Because the die is in two parts: upper die and lower die, the position precision j between the upper die and lower die is more important among the four kinds of precision.
3. The accuracy of the mold is to serve the accuracy of the product. The precision of the product with high precision must be guaranteed by the mold with higher precision.
4. Our country can already produce two micron multi-position progressive die precision, life can reach 300 million times more than. The multi-station progressive die produced by some enterprises can be used in the high speed punch every two thousand times, with an accuracy of up to one micron. The coastal areas, especially Guangdong Province, are in the forefront of the domestic industry in terms of the overall level of mold manufacturing quantity and quality, and the mold technology has approached the international level.
5. The difference between precision mold and ordinary mold is the difference in accuracy. Because the mold involves a wide range of fields, there are different definitions of precision mold in different industries and fields. There is no universal definition.
Mold processing equipment to improve processing performance:
1. The increasing upsizing of the mold forming parts and the high productivity of the parts require one mold and more cavities, resulting in the increasing upsizing of the mold. The large tonnage of the large mold can reach 100 tons, and the mold has hundreds of cavities and thousands of cavities.
2. The hardness of the die steel material of the mold processing is high, and the mold processing equipment is required to have thermal stability and high reliability.
3. For complex cavity and multi-function composite mold, with the complexity of the shape of the parts, it is necessary to improve the design and manufacturing level of the mold. Multi-function composite mold with various grooves and materials formed or assembled into components in a set of molds requires a large amount of processing programming, with high and deep cavity comprehensive cutting ability and high stability, which improves the processing difficulty.
4. The precision of mold processing makes the compound and efficiency of processing equipment more attractive. High-speed milling has many advantages such as high hard steel, smooth processing, small cutting force, small workpiece heating deformation and so on, so that die enterprises pay more and more attention to high-speed processing.
5. High dynamic accuracy. The static performance (such as repeated positioning accuracy and linear feed speed) introduced by the machine tool manufacturer can not reflect the actual processing situation when the 3D mold surface is processed. The high precision machining of the three-dimensional surface of the mold, but also put forward the requirements of high dynamic precision performance, high speed and high precision in the machine tool of high rigidity, thermal stability, high reliability and high quality control system can be realized.
6. The combination of processing technology and green product technology will be taken into consideration when enterprises purchase equipment. The radiation and medium selection of electric machining machine tools will be safety and steel influence factors, and the electric fire steel 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 the mold to participate in product development and design technology.
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