论文部分内容阅读
滾轧外螺纹的方法,与其他加工螺纹的方法相较,有很多优点:(1)生产率高;(2)毛坯材料节省;(3)强度高;(4)精度较高。但目前在成批生产的工厂中用得还不够普遍,其原因是需要有较贵的工具及设備;尤其受到後者的限制。这里介绍装在车床上滾轧螺纹的夹具,可藉此省去滾轧专用的设備。由於它主要是滾低於3级准确度的螺纹,因而也可装在已不宜用於车削加工的车床上。同时,夹具本身的结构轻便,调整迅速,所以也很适宜於滾轧批量不大的周期性生产。
The method of rolling external thread has many advantages compared with other methods of processing thread: (1) high productivity; (2) saving of blank material; (3) high strength; (4) high precision. However, the current use in mass-produced factories is not yet widespread because of the need for more expensive tools and equipment; in particular, the latter is limited. Here is a description of the thread rolling fixture installed in the lathe, eliminating the need to roll special equipment. Because it is mainly rolled below the thread level 3 accuracy, it can also be installed on lathes that are not suitable for turning. At the same time, the structure of the fixture itself is light and quick to adjust, so it is also suitable for periodic production with small batches.