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With the steady development of the socio-economic, scientific and technological progress, industrial production technical level has significantly improved. Requirements in the industrial process, not only to improve processing efficiency, improve processing quality while also requested to reduce the machining process, saving raw materials, reduce manual operation, to reduce production costs, and reduce noise. Continuous production process of the steel pipe, high-speed cutting equipment online is one of the key equipment in the entire production line, its performance will directly affect the shear mass of steel and the production efficiency of the entire production line. The pipe cutting method usually there are many problems, it will affect the processing quality and increase production costs. This paper will affect the flying shears shear quality (high-speed steel pipe punching institutions) factors were analyzed, and draw reasonable parameters of the simulation results. The same time, the analysis of the principle of the structure and motion of the flying shears principle proposed optimization program, its structure is more reasonable, smoother movement. The shearing process of the steel pipe, the shear mode, the lateral cutting depth of the broach, the shape of a longitudinal cutter, blanking gap, blanking speed is the main factor affecting the shear quality. The theoretical analysis of longitudinal cutter contour curves, thin and long tool tip part and tool rigidity is poor, life is short, then secondary shear shear and reasonable tip angle design, reasonable blade contour curves . The theoretical analysis of horizontal broach cutting depth longitudinal cutter by force and transverse cutting quality, as well as the shear rate, the blanking clearance on the shearing quality, reasonable lateral depth of cut, shear rate and reasonable punch CD gap. With the rapid development of computing technology, CAE technology has also been a rapid development. Computer finite element simulation studies with systematic inheritance can continuity, also not subject to the restrictions of time, space, and experimental conditions. In this paper, metal plastic forming finite element software Deform steel pipe shearing process dynamic finite element simulation, the analog value is compared with the theoretical value, to verify the correctness of the theoretical analysis. Physical measurements, using SolidWorks 3D software to build flying shears 3D model according to the actual measurement and correction of data, to observe the structure principle and various parts of the movement principle, the use of SolidWorks software Cosmos Motion plug movement of flying shears simulation analysis, and output displacement curve of the main moving parts, speed curve and acceleration curve, and analyze them. Timing diagram of output flying shears movement, further understanding of the overall movement of the flying shears, an optimization proposal at unreasonable for its structure, its structure is more reasonable, more stable movement, improve shearing quality and production efficiency while work and reduced noise, improve the safety factor. The flying shears applications quickly to improve production efficiency, high-speed, continuous, automated, high processing quality direction, improve shearing quality and widely used in a variety of materials and wall thickness of the pipe steel pipe production.
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