不同规格板材拉伸试样连续加工的方法及装置

Method and device for continuous processing of tensile specimen of plate with different specifications

通过设计采用四工位专用夹具替代单工位夹具,开发了可连续加工不同规格板材拉伸试样全流程数控宏程序和定向精度补偿数控宏程序,形成一种新的加工方法与流程。通过实际应用,可有效节省加工过程机床非机动时间,最大限度提高效率,解决了由于刀具磨损和材料切削性能等因素影响造成的精度误差和试样两头部与平行部轴线的偏差问题。试验方法操作简单,连续加工过程稳定,对减轻劳动强度、缩短流程、降低刀具消耗、实现无人值守加工等具有重要的实际意义。

A special four-position clamp was designed to replace the single-position clamp.The whole-process numerical control macro program and directional precision compensation numerical control macro program were developed for continuous processing of tensile specimen of plate with different specifications.A new processing method and flow were formed.Through practical application,it could effectively save the non-maneuvering time of machine tool in machining process and maximize the efficiency,which solved the problems of precision error caused by tool wear and material cutting performance,and the deviation of the axis between the two heads of sample and the parallel part.The operation in the proposed method was simple and the continuous machining process was stable.This method had important practical significance in reducing labor intensity,shortening process,reducing tool consumption and realizing unattended machining.