摘要
随着数字化制孔系统在飞机装配中的全面应用,掌握数字化制孔系统中法矢找正技术的关键技术尤为重要。基于三套不同的数字化制孔系统,分别对法矢找正技术应用中的硬件选型、硬件布局、计算模型和工作流程等进行介绍和对比分析。总结出数字化制孔系统法矢找正技术的关键技术包括:在硬件选型上,应优先选用测量精度高,可靠性较好的测量传感器;在布局方面,尽量选用矩形布局,保证传感器射线法向与主轴轴线相交;在压紧脚大小上,压脚平面需要和主轴轴线垂直,同时压紧脚尽量选择较软的材料,以保证不压伤待制孔区域;在法矢传感器计算模型上,基于机器人制孔系统,采用最小二乘法模型进行解算精度较高;基于五轴数控机床的制孔系统,采用二元角度法模型精度更高。
With the comprehensive application of digital drilling system in aircraft assembly, it is especially important to master the key technology of normal vector finding technology in digital drilling system.Based on three different digital drilling systems, the hardware selection, hardware layout, calculation model and workflow in the application of normal vector finding technology are introduced and compared and analyzed respectively. The key technologies of the digital drilling system include: in hardware selection, the measurement sensor with high accuracy and good reliability should be preferred;in layout, rectangular layout should be used as much as possible to ensure that the sensor ray normal intersects with the spindle axis;in presser foot size, the presser foot plane needs to be perpendicular to the spindle axis, and the presser should be made of softer material as much as possible to ensure that the area to be made is not crushed;in the calculation of the normal sensor, the presser foot plane should be perpendicular to the spindle axis. In the normal sensor calculation model, based on the robot drilling system, the least-squares model is used to solve with higher accuracy;based on the fiveaxis CNC machine tool drilling system, the binary angle model is used with higher accuracy.
作者
汪东明
蒋智华
WANG Dongming;JIANG Zhihua(Avic Cheng′du Aircraft Industrial(Group)Co.,Ltd.,Chengdu 610073,CHN)
出处
《制造技术与机床》
北大核心
2022年第5期53-58,共6页
Manufacturing Technology & Machine Tool
关键词
数字化制孔
法矢找正
布局
最小二乘法
二元角度法
digital drilling
normal vector finding
layout
least squares
binary angle method
