Transactions of Materials and Heat Treatment

Title：Assembling and disassembling mechanism on piercing plug based on tandem shew rolling

Authors：

Unit：

KeyWords：

ClassificationCode：TF31

year,vol(issue):pagenumber：2022,47(1):132-139

Abstract：

For the problem of how to safely and efficiently replace the piercing plug of metal tandem shew rolling experimental unit after piercing and rolling, and in the premise of not affecting the efficiency for tube rolling, a set of mechanism that realized the offline disassembly and assembly of the plug was designed and developed to meet the needs of plug replacement. Under complex working conditions such as high rolling axial force and high rolling temperature, a large thread pre-tightening force was generated for the plug and mandrel threaded coupling body. According to the use situation, the assembling and disassembling work was divided into the tightening process and the loosening process, the working characteristics and functions of the two processes were explained, the force model between jaw and plug was established when the plug was clamped by the mechanism jaw, and the clamping force between jaw and plug was calculated in the clamping state. Furthermore, the establishment of the three-dimensional model for the mechanism was completed by the existing process parameters and design requirements, and the movement law of the assembly and disassembly of the plug for this mechanism was analyzed and calculated by software ADAMS, which provided a theoretical basis for the working parameters and structural design parameters required in the mechanism design.

Funds：

山西省重点研发计划项目（201903D121049）；山西省科技重大专项项目（20191102009）

作者简介：魏东（1992-）,男，硕士研究生 E-mail：weidong8030@163.com

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