在线涂胶检测



在焊装车间车身涂胶工艺中, 胶枪会在工件上涂几米长的胶。完整的涂胶应用要求检查涂胶质量,并记录在案。

使用York图像处理软件和一个特殊设计的集成式相机,当涂胶以每秒高达500毫米的速度进行时,可以实时完成涂胶质量检测。测头直接安装在胶嘴上,记录胶嘴周围的施胶进度,无需重新调整工件方向或摄像机进行胶型轨迹跟踪。

视觉系统直接从机器人接收用于图像采集的每个单独胶段的触发信号。只要触发信号是active状态,图像就以固定的频率连续采集。每个胶段(section)的图像采集和检测彼此独立,不断获取新图像,同时评估现有图像。

视觉系统对胶的连续性、宽度及胶条相对于图像中特定特征(例如孔或边)的位置进行逐段检查。

胶型示教可以通过半自动学习方式进行。最终可以手动重新设定特征,并调整门限值。所有设置即时生效,对后续检查不会带来额外的节拍时间占用。

York视觉系统会在显示器上以图形化方式显示所有缺陷告警的胶段信息。

该系统已在世界范围内多次用于各汽车工厂的自动随行涂胶检测。

In the bodyshell construction often adhesive beads with a length of several meters are applied in one piece or also in several sections. And, of course, the complete application should also be checked for quality assurance and documented as well.

With the VisionTools V60 image processing software and a special "Cyclospotter" camera, the glued seam is checked immediately when the bead is applied to the component, at speeds of up to 500 millimeters per second. The "Cyclospotter" is mounted directly on the glue nozzle and records the progress of the glue application around the nozzle, without the need to reorient the workpiece or camera for seam tracking.

The camera system receives the signal for each individual gluing section for image recording directly from the dispenser or robot. As long as the signal is active, images are continuously acquired at a fixed frequency. Independently of each other, the camera system continuously acquires new images and simultaneously evaluates the existing images.

The consistency of the seam, the width of the application and its position in relation to other component features in the image, e.g. holes or edges, are checked section by section.

The teach-in takes place via a semi-automated learning run. Afterwards, features can be manually re-teached and the limit values can be adjusted. Due to the immediate control during the order, no additional cycle time is required for a subsequent inspection.

For orientation, the camera system visualises the area of faulty sections graphically on the monitor.

A complete integration of the image processing into the glue control is possible and makes the system even easier to handle and more efficient due to hardware reduction.

The proven and robust system is used worldwide several times in various automotive plants in the bodyshell construction area.


  • 2020-06-15 View: