韋永亮 楊付四 岳雙成


摘 要:文章簡述了基于pcdmis的白車身常規測量方法,并分析了常規測量方法的不足。介紹了一種用于解決常規測量方法不足之處的基于“矩陣平臺法”的測量技術,并在此基礎上闡述了“矩陣平臺法”測量技術基于pcdmis的關鍵輔助工具開發及實際應用。
關鍵詞:白車身測量;矩陣平臺法;pcdmis;輔助工具開發
中圖分類號:TM930.9 ?文獻標識碼:B ?文章編號:1671-7988(2020)19-199-03
Development of body-in-white measurement aids based on pcdmis
Wei Yongliang, Yang Fusi, Yue Shuangcheng
(Guangzhou Automobile Group Co., Automotive Engineering Institute, Guangdong Guangzhou 511434)
Abstract: This paper briefly describes the conventional measurement method of body-in-white based on pcdmis, and analyzes the shortcomings of conventional measurement methods. This paper introduces a measurement method based on "matrix platform method" to solve the shortcomings of conventional measurement methods. Based on this, the develop -ment and practical application of key auxiliary tools based on pcdmis for "matrix platform method" measurement technol -ogy are described.
Keywords: Body-in-white measurement; Matrix platform method; Pcdmis; Development of auxiliary tool
CLC NO.: TM930.9 ?Document Code: B ?Article ID: 1671-7988(2020)19-199-03
1 引言
在汽車生產制造過程中,白車身的尺寸測量是控制車身質量的重要方法之一,行業內普遍采用雙懸臂式三坐標測量機對白車身進行尺寸測量。雙懸臂式三坐標測量機的局限性以及研發試制狀態白車身相對于量產白車身的不穩定性,使得常規方法難以滿足試制白車身的測量。
2 常規方法測量試制白車身存在的問題
雙懸臂式三坐標測量機為自動接觸式測量,需要其測頭接觸到車身才能觸發測量,雙懸臂式三坐標測量機在空間三個相互垂直的方向上移動,對車身進行探測測量。由于車身結構較復雜,車身上存在部分雙懸臂式三坐標測量機難以接觸到的“測量盲區”,如前機艙部分區域、C柱部分區域。因此,常規的測量并不能覆蓋整個車身,車身部分區域的尺寸難以監控。便攜式三坐標測量機相對雙懸臂式三坐標測量機更加靈活,便于移動,測量范圍可以覆蓋幾乎100%的白車身,采用便攜式三坐標測量機對雙懸臂式三坐標測量機的“測量盲區”進行測量是補充測量是解決方法之一。……