航空制孔设备的运行精度及动态性能研究

Study on running accuracy and dynamic performance of aviation drilling equipment

以提高航空件制孔精度为目标,研究制孔过程运动控制,根据所达到的最大加速度,由阻尼下的结构振动衰减规律提出合理的时间节点分配关系。建立传动系统振动模型和机身弹性结构惯性冲击模型,计算机床瞬态位移响应与传动系统刚度、结构阻尼系数之间的定量关系,在保证运动高加速度性能条件下,通过合理控制制孔运动时间及提高传动系统刚度大幅度提高制孔精度。

To improve the precision of drilling hole of aviation parts,research the motion control of the course,according to the maximum acceleration,the time allocated node is achieved by the structural vibration damping attenuation law. Establish driveline vibration model and serial elastic structure inertial impact model,quantitative relationships computers bed transient displacement response and transmission stiffness,structural damping between sport in ensuring high acceleration performance conditions,through the reasonable control of machining hole movement time and improving the transmission system,greatly improve hole accuracy.