关键词: 定位系统；可调螺母；工具选型；滑移门空间布局

Abstract: Through the analysis of the structure design of a vehicle chain in this paper, combined with the research of the position system of the door, it focus on the matching accuracy adjustment method of sliding door which is applied to the multi-purpose vehicles (MPV) models and the selection of the adjustment tools. It will be conductive to adjustment of final assembly online about slide doors. It will be better for the visual effect. Meanwhile through the research of the layout of the chain position and space comparison, summarized the the mathematical structure model of selection of the adjustable nut, tool selection of adjustment angle and adjustment range. It will effectively solve the existing design defects, and make a certain guiding role for other models which can avoid the designed defects for the chain of the door.

Key words: Position system; Adjustable nut; Tool selection; Sliding door layout