Factors affecting process parameters of automatic fiber cutting machine
Taiwan group automatic optical fiber cutting machine summarizes the design plan of the numerical control system according to the realization of various processing forms to ensure that the system has a certain degree of compatibility with other plans. The overall design of the CNC system. First understand the 0SEC system structure, refer to its system model for overall design, adopt the form of IPC + motion control card + digital data, input/output board to ensure the scalability, portability and interchangeability of the system. Design of user operation interface and user instructions. Encapsulate the common parts of the system and other numerical control equipment, retain the support for standard numerical control instructions, and design the open protocol for communication between the internal equipment of the system. Ensure that the communication between devices is not based on physical media and is transparent to the hardware. Selection and familiarity of system hardware. According to the overall design requirements, various hardware devices are selected to ensure that the hardware functions match the system requirements. On the basis of the existing hardware, the realization process of special functions in the group automatic fiber cutting machine is designed and introduced. Cutting process The process parameters in the cutting process are mainly related to factors such as the size of the cutting nozzle, the cutting thickness, the oxygen pressure, the gas pressure, and the cutting speed. When the cutting oxygen pressure is too large, the incision will be too wide and the surface of the incision will be rough; if the pressure is too low, the iron oxide slag cannot be blown off, and the slag outside the incision is easy to stick and difficult to remove. The preheating flame energy rate should also be appropriate. If the flame energy rate is too large, the edges and corners of the incision surface will melt; if the flame energy rate is too small, the cutting process is easily interrupted and the incision surface is not neat. The cutting speed should also be appropriate. When the cutting speed is too fast, it will produce a large amount of back drag, which is not easy to cut through; the cutting speed is too slow, it will cause the edges and corners on both sides of the steel pipe to melt, and the steel pipe with thinner wall is prone to excessive deformation .
Taiwan group automatic fiber cutting machine In addition, the main factors that affect the cutting quality and cutting process are: oxygen purity, impurities and defects in the metal, fuel gas type and fuel gas purity . The temperature of oxyacetylene cutting acetylene burning in pure oxygen can reach more than 3100℃, which is the higher temperature among the current gas cutting fuel gas, and the application volume is larger. This machine uses an isobaric cutting torch to cut the workpiece. Propane cutting with oxypropane is a kind of liquefied petroleum gas. With the development of the petroleum industry, propane as a substitute gas for acetylene is gradually being widely used. Although the temperature of the oxypropane flame is not as high as that of the oxyacetylene flame, the flame is also softer, but the volumetric heat is larger than that of acetylene. During cutting, the upper edge of the cutting surface has no obvious burning and collapse, and the lower edge is not easy to slag, even if there is slag, it is easy to remove. The current domestic and foreign Taiwan group automatic fiber cutting machines that use isobaric cutting torches for cutting exist The shortcomings are almost concentrated in the full bevel cutting process of the pipe. In order to realize the full bevel cutting of the pipe, various types of cutting machines have at least a 6-axis structure, of which 5 axes must be controlled in linkage to complete the full bevel cutting process of the pipe. The mechanical structure of the groove cutting device is composed of 3 joints, because these 3 joints must be linked to ensure that the cutting torch can be clamped flexibly, accurately and reliably to realize the cutting of the groove, so this kind of groove The cutting device requires very high precision in mechanical design, processing and installation.
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