Automatic Generation of Dimension Chains for Auto-Body Dimensional Quality Evaluation

A new approach for classification of geometrical accuracy in Autobody assembly process

一种轿车车身制造尺寸精度分类方法

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On the Identification of Dimensional Variation Modes of Body-in-white Assembly

白车身装配尺寸偏差模式识别方法研究

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Generation method of auto-mobile body assembly dimension chain

车身装配尺寸链生成方法

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M-CII Control Chart Used for Classification of Geometrical Accuracy in Autobody Assembly Process

轿车车身制造尺寸精度的M-CII图分类方法

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In the body-in-white ( BIW) manufacturing dimension quality control process, three methods used are the checking fixture, CMM and OCMM.

在白车身制造尺寸质量控制过程中，主要采用样架、三坐标测量机（CMM）、在线三坐标测量机（OCMM）进行检测。

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When the daily production process in the workshop can be detected on-line real-time data modeling, obtained geometric distance, and then under different bias compare the geometric distance to determine deviation of the white body size of the problem source, rapid diagnostic bias source. 4.

当在车间日常生产过程中，可以对在线检测数据进行实时建模，求出几何距离，然后与不同偏差状态下的几何距离进行比较，从而确定白车身尺寸问题的偏差源，快速诊断偏差源。

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After the drop tank for the white part of the body-line change detection data fluctuating problems associated with the use of control chart-based analysis method for online detection alarm the alarm on the original test data pattern recognition-based diagnostic method of body size deviation analysis.

针对白车身后落水槽部分在线检测数据存在波动变化的问题，运用基于控制图关联分析的在线检测数据报警方法对原始检测数据进行报警和基于模式识别的车身尺寸偏差诊断方法进行偏差分析。

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This system adopted the non-contact measuring method can measure the vehicle size including length, width and height quickly without parking. The characteristic of the system is the high measuring precision, fast detection speed and the completely automatic measuring process without human intervention.

本系统采用非接触式测量方式，车辆无需停车便可快速测出其长、宽、高等车身尺寸，其特点为测量精度高、检测速度快、整个过程无人为干预完全实现自动化测量。

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So it gets widely appliance in various fields as an efficient measurement, such as distance measurement, surface shape of work piece, structural parameters of components, Archaeology, Biological Medicine, Reverse Engineering and car body size measurements.

所以，作为一种高效的测量方法渐渐被更加广泛应用，如：测量距离，工件零件表面形状，组件的结构参数，考古领域，生物医学领域逆向工程和车身尺寸测量等。

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The host computer completes the reconstruction of the three-dimensional contour after calculating and analyzing the received information. Meanwhile it gives the vehicle transfinite evaluation and the overloading data according to the relevant provisions of the state.

上位机对接收到的信息进行计算分析，完成对被检测车辆三维轮廓的重构，最后给出被测车辆长、宽、高等车身尺寸，并且根据国家有关规定给出车辆的超限评价和超限数据。

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Effective analysis and accurate alarm to car auto-body dimensional data of online detecting both to improve the important means of the body manufacturing quality, but also put forward specific objective evidence of corrective actions.

对轿车车身尺寸在线检测数据进行有效的分析和准确的报警既是提高车身制造质量的重要手段，又是提出具体整改措施的客观依据。

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The dimensional quality of car body directly related to vehicle appearance, wind noise, shut door effection and drive stationarity, is influenced by parts design, assembly techniques and manufacture variations.

轿车车身尺寸质量直接关系到整车外观、风噪声、关门效果甚至行驶平稳性，影响轿车车身尺寸质量的主要有零部件设计、装配工艺及制造偏差等因素。

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The research work in this paper was focused on the several points as follows: 1. Analysis of auto-body dimensional online detecting system and characteristics of data.

主要研究工作在以下几个方面展开：1、车身尺寸在线检测系统及数据特点分析。

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Based on the cause of deviation on Body's dimension, the worn out of welding fixture is the most usual and difficult effect to find out.

在造成汽车车身尺寸偏差的原因中，焊装夹具的定位元件磨损是最常见的也是较难发现的影响因素。

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Car body dimension control is one of the most important works of quality control in vehicle manufacture, realize better technics, improve brand.

车身尺寸控制，是整车制造行业重要的质量控制工作之一，也是任何一家整车企业实现工艺精细化、提升品牌形象的必要前提。

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Proposed on-line test data pattern recognition theory based on time series of body size deviation diagnostic methods, and to be verified.

对在线检测数据提出基于时间序列模式识别理论的车身尺寸偏差诊断方法，并加以验证。

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On this basis, with one models, for example depth of body dimension control system and development of the practical application.

在此基础上以具体车型为例深入探讨了车身尺寸控制系统的实际运用和拓展。

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The tubular back-bone chassis makes it relatively easy for Steyr to play mix and match with wheelbases.

有管状大梁的车架使得斯太尔可以很容易地组合出不同的车身尺寸和轴距。

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Study on Vehicle Dimensional Measuring System

汽车车身尺寸检测系统研究

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BIW dimensional accuracy has been an important point concerned by auto industry and academy.

汽车白车身尺寸精度是汽车工业界和学术界关注的重要课题。

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