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我厂的电加工主要对象是锻模,为了减少加工出的上下模的错模误差,我们曾试用了几种方法,最后认为还是在锻模上由钳工划出型腔外形线比较可靠:在机床上校正时用直角尺按线校对电极外形,使电极全部在型腔外形线內,且各边距外形线的距离大致相等即可。由于钳工划线是按型腔尺寸划的,而电极的水平尺寸比型腔尺寸要小一个放电间隙和精修余量,所以校对时电极外形尺寸在锻模上的投影和型腔外形线有一段距离(我厂电极单边缩小0.5毫米),这
I plant the main target of electrical processing forging die, in order to reduce the error of the upper and lower mold processing error, we have tried several methods, and finally concluded that the forging die or by the fitter out of the cavity contour line more reliable: When calibrating the machine, align the electrode with the rectangular ruler according to the line shape so that the electrodes are all within the outline of the cavity and the distance between each side and the outline is approximately the same. Because the fitter scribe is drawn according to the size of the cavity, and the electrode horizontal size than the size of the cavity to a discharge gap and finishing allowance, so proofreading the outline of the projection on the die and the contour of the cavity line A distance (I unilateral narrow electrode 0.5 mm), this