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在用板牙架手工铰丝时,往往不易将螺纹铰正(直),特别是一些螺纹较长的工件。为此,我们改进了板牙架的结构。经使用,效果良好,不仅保证了产品质量,又提高工效两倍以上,现介绍如下: 该板牙架(见图)增加了导向部分。具体要求应根据不同规格直径的板牙、工件而定,其长度L一般是原板牙厚度的2～3倍;导向部分的内孑L直径一般是原板牙直径±0.15mm,排屑孔一般为3～5个不等,这要视板牙而定。最好加工成倒锥孔,但必须与板牙上的排屑槽相对应,否则就起不到应有的作用。该工具制造和使用方便,工效高,质量好,
When using handrails for manual reaming, it is often not easy to align (straight) the thread hinges, especially for longer threaded parts. To this end, we have improved the structure of the die holder. The use of good results, not only to ensure product quality, but also to improve work efficiency more than twice, are presented below: The dental frame (see photo) increased the guidance part. The specific requirements should be based on different specifications of the diameter of the die, the workpiece may be, the length L is generally the thickness of the original 2 to 3 times the thickness; guide part of the inner larvae L diameter is generally the original die diameter ± 0.15mm, chip hole is generally 3 ~ 5, depending on the teeth. Best processed into a reverse tapered hole, but must correspond with the chip on the chip, otherwise it will not play its due role. The tool is easy to manufacture and use, high efficiency, good quality,