论文部分内容阅读
在农村社队企业的一些小厂里,普通车床附件较少,有的只配有四爪卡盘.四爪卡盘的每个卡爪是单独移动的,仅适合于装卡形状不规则的工件.当加工数量较大的同规格圆柱形工件时,用四爪卡盘进行装卡,工作起来就很不方便.为有效利用现有设备,提高生产效率,我们在四爪卡盘的三个卡爪上预先卡上一个“V”形铁(角度为90°,厚度根据卡爪长度确定),然后将待加工的工件装上,用划针盘找正夹紧后进行加工(如图).以后再上卡加工每一个工件时,只要松紧卡爪A,不需再用划针盘逐一找正即可迅速装卡好,并能较准确地与主轴中心对正,工效可提高4～5倍,加工质量也得到了保证.
In some small factories in rural commune and brigade enterprises, there are fewer ordinary lathe attachments, and some are equipped with four-jaw chuck. Each jaw of the four-jaw chuck is moved independently and is only suitable for loading irregularly shaped Workpieces.When processing a large number of the same specifications cylindrical workpiece, with four-jaw chuck for card, work is very inconvenient.In order to effectively use the existing equipment, improve production efficiency, we in the four-jaw chuck three Pre-card on a claw “V ” shaped iron (angle of 90 °, the thickness determined according to the length of the claw), and then the workpiece to be processed loaded with a needle dial to find the correct clamp after the processing As shown in the figure.) After processing each of the workpiece on the card, as long as the elastic claw A, no longer need to use one by one to locate the needle plate can quickly installed a good card, and can be more accurately aligned with the spindle center, ergonomic Improve 4 to 5 times, processing quality has also been guaranteed.