弹药弹体尺寸自动测量系统

在对某系列特种弹药的弹体结构尺寸分析和归类的基础上,详细阐述了弹体几何尺寸的测量原理,并结合工厂的实际,采用激光位移传感器和计算机自动控制技术,实现了弹体的关键尺寸的数字化测量与评价。实际应用表明该系统可以有效地提高弹体尺寸的测量精度并定量评价弹体的尺寸误差,内外径和同轴度的测量精度可达10μm以内,外长的测量精度可达100μm以内,能有效地指导加工的工艺流程和加工的尺寸精度控制。

Automatic Measuring System for Projectile Dimension Measurement

The measurement principles are discussed in detail for projectile dimension measurement,based on the analysis and classification of the structural dimensions of special projectiles.According to the practice in the factory,a measuring equipment is set up to measure those dimensions.Two high precision laser displacement sensors and motion controller are introduced to construct this automatic digital measurement system for digital inspection and evaluation of the key dimensions.Actual application shows that this system can effectively improve the projectile dimension measurement precision and give the error distribution.Testing result shows that the system measurement error is less than 10 microns for internal/external diameters and 100 microns for the external length.Hence the measurement system can guide the machining processes and helps to control the product quality.