车床上加工内外球面的辅具在车床上加工凸凹球面，操作较难把握，为此，设计了如图１所示的简易辅具，其结构简单，操作方便，能较好地保证车削球面的形状精度和尺寸精度。如Ａ－Ａ剖视图所示，固定板固定在车床的导轨上。如Ｂ－Ｂ剖视图所示，调节板用螺钉固定在中拖板上... Lathe processing inside and outside the spherical auxiliary machining in the lathe convex spherical concave, difficult to grasp the operation, therefore, designed as shown in Figure 1 simple auxiliary, its simple structure, easy operation, can better ensure the turning spherical Shape accuracy and dimensional accuracy. As shown in A-A sectional view, the fixing plate is fixed on the guide rail of the lathe. As shown in B-B sectional view, the adjusting plate is fixed on the middle carriage by screws.