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该装置由本体、滑块、导轮架组成。将本体装于丝架上臂前端(两臂间有足够高度,可升降丝架更理想),滑块与本体燕尾槽配合,y方向移位,形成左、右旋α螺旋角(最大范围±8°);导轮架方尾柄与滑块方孔配合,沿x方向移位,可形成β后角,(最大范围45°)。根据被加工刀具的α螺旋角、β后角,调整钼丝切削部分与工作台面的倾斜程度。被加工刀体平行于工作台装夹,刀具刃部几何图形未变,计算简便,省去“近似非圆曲线”座标的计算,提高了几何图形精确度。
The device consists of a body, a slider and a guide wheel holder. The body is mounted on the front end of the upper arm of the wire frame (enough height between the arms to lift the wire rack more ideal), the slider with the body dovetail groove, y direction shift to form left and right α helical angle °); guide tail side of the tail handle and the square hole with the slider, along the x direction of displacement, the formation of β after the angle, (maximum range of 45 °). According to the α-helix angle and β-posterior angle of the tool to be machined, the degree of inclination of the molybdenum wire cutting part and the worktable is adjusted. The workpiece to be machined is parallel to the workbench. The geometric shape of the tool edge has not changed. The calculation is simple, and the calculation of the coordinates of the “approximate non-circular curve” is omitted, which improves the geometric accuracy.