Transactions of Materials and Heat Treatment

Title：Rigidity optimization design on CNC gate-type shearing machine based on test and simulation

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ClassificationCode：TG333.2+1

year,vol(issue):pagenumber：2021,46(5):163-168

Abstract：

For a CNC gate-type shearing machine, the real rigidity of the machine under typical working conditions was tested by strain electric measuring technology, and the factors affecting the shearing quality were analyzed. Then, the model and simulation calculation of the overall shearing machine were conducted by the large-scale general finite element analysis software, and the deflection and deformation of tool holder and worktable for shearing machine were described. According to the comparison between finite element simulation results and test data, it was verified that the deformation trend of shearing machine was basically consistent with the experimental test, which provided the feasibility for the subsequent optimization design. Furthermore, the weak links in the machine tool structure were found, and several optimization design schemes were proposed, such as adding the shim to limit the displacement in a certain direction, modifying the geometric structure and sizes, and changing the shape of reinforced beam, and the influences of various parameters on the rigidity of machine tool were discussed, Thus, the rigidity and shearing quality of this shearing machine after optimization were significantly improved.

Funds：

2019年江苏省产学研合作项目（BY2019203）；2019年江苏省政策引导类计划国际科技合作项目（BZ2019035）；2020年江苏高校“青蓝工程”项目资助（苏教师函〔2020〕10号）；2020年省科技厅外国人才引进专项（BX2020047）；盐工院科研基金项目资助（ygy2010）

周欢（1989-），男，硕士，讲师 E-mail：zhouhuan2011@163.com 通讯作者：贲能军（1985-），男，硕士，副教授 E-mail：beneric@126.com

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