Abstract
Solidworks is selected for modeling the 3D-solid structure of the deep-hole drilling machine. Based on parametric modeling and structural optimization theory, the parametric model of column is established. The equivalent stress and maximum principal stress on the column are solved by FEA. The two parameters (column thickness and inner rib thickness) are included. According to the design variables, the main target method is applied for the purpose of optimizing the weight of the column (Chen, Ding, & Guo, 2010). Topology optimization is used to determine the location of the sand holes by ansys software with density method.
Highlights
CNC three-axis drilling machine is a multi-axis deep hole drilling equipment which processes steam generator tube sheet
Due to the characteristics of gray cast iron, the strength and stiffness is not with the casting wall thickness increased in proportion to increase
Location of sand holes ensure that the stiffness of the structure and the fundamental frequency meet the requirement
Summary
CNC three-axis drilling machine is a multi-axis deep hole drilling equipment which processes steam generator tube sheet. In the nuclear steam generator tube sheet processing, 1.5 tons of high pressure hydraulic tights jig. The column bears the reaction force of 1.5 tons of high-pressure oil and about 0.5 tons of the axial drilling force. The drilling assembly weight is 11 tons and the center-balance counterpart is 11 tons.Intensity and stiffness affect the accuracy of drilling directly (Li & Shen, 2011). In order to ensure the accuracy of parallel in the processing deep hole, the importance of the column structure is obvious
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