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在丝扛螺母传动副中,当螺母磨损增大后,一般都用铸造铜螺母毛坯进行机械加工按丝杠配制螺母。这种方法,加工困难,配合精度不易保证,丝杠—螺母啮合性差。不仅螺母寿命低,而且加速丝杠磨损。同时,螺母毛坯表面硬化层被加工掉,大大降低螺母的耐磨性。我厂在长期生产实践中,创造了一种直接用丝杠配浇铜螺母的新方法—配铸法。现将“配铸法”简介如下。 先制造一个供铜螺母造型用的铸模(木质、塑料及金属等均可),并做出芯头,其
In the wire carrying nut drive vice, when the nut wear increases, the general use of cast copper nut blank for machining according to screw nut preparation. This method, processing difficulties, with the precision is not easy to ensure that the screw - nut meshing poor. Not only the nut life is low, but also to accelerate the wear and tear of the screw. At the same time, the nut blank surface hardening layer is processed off, greatly reducing the wear resistance of the nut. In our long-term production practice, our factory has created a new method of casting copper nuts directly with screw-casting method. Now “casting method” is as follows. First create a model for the copper nut mold (wood, plastic and metal, etc. can be), and make the core head, which