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利用滚丝轮加工螺纹工件牙形,不仅生产效率高,而且1级精度的滚丝轮加工出的螺纹,其精度达到4～5级。为了提高滚丝轮的使用寿命,采用反滚法加工滚丝轮。经过先滚压成形,使表层金属纤维组织致密,沿牙形连续分布,提高表面硬度和韧性后,进行真空热处理,它比先热处理后磨削牙形的滚丝轮,提高使用寿命8～10倍。采用先滚压成形,后热处理加工滚丝轮的工艺方法,经我厂多年的生产实践,发现滚压滚丝轮用的滚丝柱(见图),在螺纹总长度上,任意25mm长度螺距偏差取负值。过去一直取正负值。从实践中摸索到:如果将滚丝柱(25毫米内)的螺距偏差做成正值,按
The use of thread rolling gear processing tooth profile, not only the production of high efficiency, and a precision thread rolling thread, the accuracy of 4 to 5 levels. In order to improve the service life of the roller gear, the use of anti-roll processing rolling wheel. After the first roll forming, so that the surface of the dense metal fibers, along the continuous distribution of teeth, to improve the surface hardness and toughness, the vacuum heat treatment, heat treatment than after grinding tooth-shaped rolling wheel to improve the service life of 8 to 10 Times Using the first roll forming, after heat treatment processing rolling wheel process method, after years of my factory production practice, found rolling rolling wheel roller column (see Figure), the total length of the thread, any 25mm length pitch Bias negative. In the past has been taken positive and negative. From practice to find out: If the rolling column (25 mm) pitch deviation made positive, according to