梳棉机针板四个踵趾面的加工,由于圆弧大,要求高,难加工。针板每端两踵趾面不在同一水平面上(图1)。它们的夹角为:tga=BD-AC/CD=1.7-0.8/33.3a=1.548°(图2,粗线表示踵趾加工面) 我们设计了倾斜1.548°的铣削装置(图3)。铣削时,将针板踵趾面朝上,放在搁板2上,然后旋紧带肩球面螺母7,使压板压紧针板9背面,开 Card four needle plate heel toe processing, due to large arc, demanding, difficult to process. Needle plate at both ends of each heel not to the same level (Figure 1). The angle between them is: tga = BD-AC / CD = 1.7-0.8 / 33.3a = 1.548 ° (Figure 2, thick lines indicate the heel toe machining surface) We designed a milling device with a 1.548 ° tilt (Figure 3). Milling, the needle plate heel toe face up, on the shelf 2, and then tighten the shoulder with spherical nut 7, the platen pressed the back of the needle plate 9, open