论文部分内容阅读
根据工厂生产的统计,约有50～60%以上带螺纹的零件,尤其是一些形状复杂的产品,必须应用圆板牙来切出螺纹。在我厂某些产品的技术标准中规定,2级精度细纹型面光洁度不得低于▽_5级要求。但在实际生产中,用圆板牙铰切螺纹,普遍出现螺纹型面不光洁的缺陷,特别对于高级合金钢,如30ХΓСА或30ХΓСНА等难加工材料的零件,所得到的光洁度更差。为此,我们在工艺实验室中结合现行生产条件,用圆板牙铰切中等规格螺纹,进行了一系列试验工作,以便求得板牙合适的几何角度、制造和修磨质量标准、合
According to factory production statistics, about 50 ~ 60% of the threaded parts, especially some complex shapes of products, you must use the circular plate teeth to cut the thread. In some products of our factory, the technical standards stipulate that the fineness of 2-grade fine-grain surface finish shall not be lower than ▽ _5 level requirements. However, in actual production, the reaming of circular disc teeth, the general appearance of defects in the thread profile is not smooth, especially for advanced alloy steel, such as 30ХΓСА or 30ХΓСНА and other difficult to machine materials, parts, the resulting finish is worse. To this end, we have conducted a series of tests in the process laboratory in conjunction with the current production conditions, using circular plate teeth to re-cut the medium-sized threads, so as to obtain the proper geometry of the plate and to manufacture and repair the quality standards.