我厂生产的3Z-4.2型旋转铡草机中有一个夹板圈零件(图1),材质为Q235A扁钢3mm×25mm,传统工艺是在卷板机上固定成形模具,利用模具将坯料卷圆后焊合接口处,再从卷扳机上将夹板圈取下,最后经过校平,校圆而成合格品。这样不仅生产效率低而且零件的尺寸公差和形位公差都难以保证。 I produced a 3Z-4.2 Rotary Lawn Mower in a clip ring parts (Figure 1), the material is Q235A flat steel 3mm × 25mm, the traditional process is fixed in the rolling plate forming machine, the use of mold after the billet round Weld interface, then remove the clamp ring from the trigger on the volume, and finally after leveling, school round and qualified products. This is not only inefficient production and parts of the dimensional tolerances and geometric tolerances are difficult to guarantee.