Title: Diversity of assembly error migration and its solution model for heavy duty machine tool

Authors: Bin Jiang; Yun Peng Gu; Tian Tian He; Shou Zheng Sun; Chong Min Jiang

Addresses: National and Local United Engineering Laboratory of High Efficiency Cutting and Tools, Harbin University of Science and Technology, Harbin 150080, China ' National and Local United Engineering Laboratory of High Efficiency Cutting and Tools, Harbin University of Science and Technology, Harbin 150080, China ' National and Local United Engineering Laboratory of High Efficiency Cutting and Tools, Harbin University of Science and Technology, Harbin 150080, China ' National and Local United Engineering Laboratory of High Efficiency Cutting and Tools, Harbin University of Science and Technology, Harbin 150080, China ' National and Local United Engineering Laboratory of High Efficiency Cutting and Tools, Harbin University of Science and Technology, Harbin 150080, China

Abstract: Aiming at the ever-changing assembly error along with operation in the large scale assembly space, the diversity of machine tool assembly error migration and its operation route are characterised by making use of the correspondence relationship between joint surface error and operation distance. The formation and retention of assembly error are respectively revealed by the forward migration and the reverse migration of assembly error. Furthermore, the delayed step function of assembly error migration is constructed to recognise the potential control operation of error migration. Based on the response surface method, the solution model of assembly error migration is established to reveal the diversity of assembly error migration process and the effect of multiple operations. Finally, the design method of assembly process about heavy duty machine tool is proposed, and its effectiveness is verified by gantry-moving type turning-milling machining centre.

Keywords: heavy duty machine tool; assembly error; assembly operation; error migration; forward transfer; backward transfer; process distance; delayed step function; response surface method; control process.

DOI: 10.1504/IJMMS.2018.095458

International Journal of Mechatronics and Manufacturing Systems, 2018 Vol.11 No.4, pp.277 - 298

Received: 14 Aug 2017
Accepted: 17 Oct 2017

Published online: 24 Sep 2018 *

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