白云亮　顾鹿鸣　翟胤　戴宏骏　黄萃蔚　田晓松　张媛媛

摘 要：虚拟封样技术是将实物进行全型面数字化处理并存储的一种新型封样手段，虚拟封样数据等比例的复刻了实物的尺寸及型面数据，在日后生产过程中如需与封样件进行尺寸比对，可通过光学扫描设备再次获取当前状态零件的型面点云数据，再在软件中将待对比点云数据与虚拟封样点云进行对比。虚拟封样技术从零件封样逐步延伸到工位封样，工序封样，对制造过程中的零件质量和工装健康状态进行评判。

关键词：虚拟 汽车制造

Application and Exploration of Virtual Sample Sealing Technology in the Field of Automobile Manufacturing

Bai Yunliang，Gu Luming，Zhai Yin，Dai Hongjun，Huang Cuiwei，Tian Xiaosong，Zhang Yuanyuan

Abstract：Virtual sample sealing technology is a new type of sample sealing method that performs full-surface digital processing and storage of the physical object. The virtual sample sealing data reproduces the size and profile data of the physical object in equal proportions， if needed in the future production process. Comparing the size with the sealed sample， the profile point cloud data of the current state of the part can be obtained again through the optical scanning device， and then the point cloud data can be compared and the virtual sealed sample point cloud are compared in the software. The virtual sample sealing technology gradually extends from the part sealing to the station sealing， and the process sealing， to judge the quality of the parts and the health of the tooling during the manufacturing process.

Key words：virtual， auto manufacturing

1 前言与背景

在汽车制造领域，封样是指将某一特定状态的零件在特定环境和条件下进行封存，此封样件可有效保存当时的制造工艺水平下零件的各种性能状态，同时也为后续生产制造提供指导方向和检测验证标准。例如，某车型某零件经过前期一系列的调整及优化，尺寸，表面等关键性能已经达到设计要求或批量生产许可，此时相关部门会对这批零件随机抽取几件进行封存，封存环境和条件应能满足此零件长期保持完好状态，同时便于后期随时取用，作为日常批量生产的参照及检测参考。此种实物零件封样方式虽能有效解决日常生产中零件生产工艺完整性的目视对比，零件表面质量的对比，和部分尺寸追溯分析，但实体封样对存储方式和存储环境有极高的要求，随着封样零件越来越多，场地占用及日常维护成本也越来越高，同时远距离调用封样件的运输高成本，时间周期长等问题也越来越明显。……