数控折弯机控制程序与误差分析  

Synchronous Control and Error Analysis of CNC Bending Machine

作　　者：尹威[1] 

机构地区：[1]上海理工大学机械工程学院,上海市200093

出　　处：《农业装备与车辆工程》2017年第6期88-91,100,共5页Agricultural Equipment & Vehicle Engineering

摘　　要：基于全电动数控折弯机的加工特点与工艺流程,并以皮带轮与滚珠丝杆作为折弯机的主要传动结构,导出了钣金在正常加工条件下,上模进深深度与下模V型槽开口角度、开口宽度,板料厚度等参数之间的关系。在特定控制器下,结合工艺要求,编写一套完善的运动控制程序,达到同步控制的目的。通过安装增量式光栅尺,导出每次加工中Y1轴、Y2轴同步精度位置,并通过误差分析使两轴各自精度保持在±0.02 mm。实验结果表明,此控制方法与分析,不仅能提高数控折弯机加工效率,而且能保证加工精度。Based on the machining characteristic and technological process of CNC bending machine, and taking the belt pulley and the ball screw rod as the main transmission structure of the bending machine, the relation between the depth of the upper mold and the opening angle, width of the opening and thickness of the lower V-groove under normal processing conditions is derived. In the specific controller, combined with the process requirements, a complete set of motion control procedures is prepared to achieve the purpose of synchronous control. By installing the incremental grating, the precision position of Y1 axis and Y2 axis in each pro- cess is derived, and the accuracy of the two axes is maintained at ± 0.01 mm by error analysis. The experimental results show that this control method and analysis can not only improve the machining efficiency of NC bending machine, but also can ensure the machining precision.

关 键 词：数控折弯机 同步控制 误差分析 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]