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Automobile: body and sub-assembly

  如果说发动机和零部件核心性能的重要部分,那车身的制造则是将汽车设计师的理念进行精彩诠释,并提供更好的安全保护的关键,同时也是汽车行业发展进步的一个重要标志,为业界和消费者所关注。
  曲面、凹槽、缝隙、各种形状的孔…这些特征都能够体现在车身及各种分总成部件上,不仅需要对这些特征进行测量,同时还包括分总成与分总成、零部件、内饰件之前配合关系的测量相互之间的配合关系测量。
  在汽车车身制造环节的测量主要体现在匹配、焊装与总装等环节。
  匹配:
  各种车型上所使用的车身和内、外饰件的批量认可,必须经综合匹配样架或主模型的试装和匹配。对产品开发、试制阶段车身和内外饰件的试装、匹配优化,可以在综合匹配样架及主模型上进行。检测特点为:精度高,以手动检测为主,检测特征复杂。该环节方案以悬臂测量系统或者CognitensWLS400M手动拍照式测量系统为主,前者方案特点为:易于检测隐藏点,精度高,通用性强;后者特点为,点云数据获取速度高,且对点云虚拟匹配缝隙、阶差等分析能力强。
  焊装:
  汽车车身是由薄板构成的结构件,冲压成形后的板料通过装配和焊接形成车身壳体(白车身),焊装是车身成形的关键。为了控制车身的尺寸,通常需要对白车身、四门两盖、前围总成、地板总成、左/右侧围总成、后围总成、顶盖总成等进行检测。该环节检测特点为:200-400个关键特征检测,偏差大,检测方案需要要较高的容错性;测量频率为每天2到3班,重复检测需要自动化检测方案。所以,推荐的方案为DEA系列自动化双悬臂测量系统,采用触发式探测手段,编写具有自动查询高偏差特征的容错性调整程序。
  总装:
  汽车装配是汽车全部制造工艺过程的最终环节,是把经检验合格的数以千计的各类零件,按规定的精度标准和技术要求组合成分总成、总成、整车,并经严格检测程序,确认其是否合格的整个工艺过程。为保证完工车辆的完美无缺,需要在对总装完成的车辆实施各关键部分的尺寸检查,以确保装配过程的完美无缺。该环节的主要检测需求为,整车车身全面检测,包括从车身前后左右和底盘等空间,检测特征包括车身内外上下曲面及关键点;Leica绝对激光跟踪仪是理想的解决方案,可以配置激光扫描和触发式探测系统,能够满足隐藏特征和底盘等复杂角度的精密测量。
  质量控制:
  现代的质量控制部门需要整合汽车制造的各个环节中大量的检测数据,协调统一来自不同检测设备、检测方法、检测报告,并为每一位工程师提供他们自己关心的检测数据。通过检测规划、脱机编程、WebReport实施对供应商检测的有效管理,制定统一的检测规划平台,并在其出上进行脱机编程,对所有测量机进行实时监控、管理。为实现这个目标,海克斯康推出I2T(汽车行业数据管理方案)系统,这样,不仅是为汽车整车用户提供了适合每个环节需要的测量系统,还有效利用软件的手段实现了各种测量系统的整合与信息应用。
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