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在讨论气门盘锥面高度尺寸检测方法之前,应首先搞清楚气门盘锥面高度尺寸公差与气门盘端面形位公差之间是什么关系。有不少设计、制造和检测人员截止到今还没有重视这个问题。在标注、制造和检测气门盘锥面高度尺寸公差时,有一个遵循什么公差原则的问题,公差原则主要指尺寸公差与形位公差的相互关系,规定了公差原则,就可以使气门的设计、制造、检测三者统一起来。因此,它在形位公差新国标中占很重要的位置。 在《内燃机配件》杂志上经常发表气门盘锥面高度尺寸公差的检测方法文章进行讨论,但至今还很少发表文章讨论气门盘锥面高度尺寸公差与气门盘端面形位公差之间是什么关系的文章。 在《内燃机配件》杂志九六年第二期,由蓬莱动力机械配件厂张敬源等三位专家,写了一篇文章,题目是《气门标准化设计探讨》。提到了气门盘锥面高度尺寸公差是否包客盘端面形位误差的问题,还提到凡尔线到盘端面高度尺寸是指高点位置尺寸,还是指低点位置尺寸的问题。我们觉得这个问题提的好,很有必要进行讨论。下面谈谈我们的意见供行家们讨论,想通过我们这篇文章起到抛砖引玉的作用。
Discussed in the disc valve cone height dimension detection method, you should first find out the valve disc cone height dimension tolerance and the valve disc end surface form of tolerance is what the relationship between. There are quite a few design, manufacturing and testing staff who have not attached much importance to this issue so far. In marking, manufacturing and testing valve disc cone height tolerance, there is a problem to follow what the principle of tolerance, the principle of tolerance mainly refers to the relationship between dimensional tolerances and geometric tolerances, provides the principle of tolerance, you can make the valve design, Manufacture, test the three together. Therefore, it forms a very important position in the new national standard form tolerance. In the “Engine Parts” magazine often published valve disc cone height dimension tolerance test method article to discuss, but so far still rarely published articles discuss disc valve disc cone height tolerance and the relationship between the valve disc end surface form tolerance The article. In the second issue of “Internal Combustion Engine Parts Magazine” in 1996, an article was written by three experts such as Zhang Jingyuan of Penglai Power Machinery Parts Factory on the topic of “Valve Standard Design Study”. Mentioned the cone disc height tolerance is not included in the package end face shape position error, also mentioned Vernal line to the disc end height dimension refers to the high position size, or low position size problem. We think it is necessary to discuss this issue well. Let’s talk about our comments for discussion by the experts, and we want to make a valuable contribution through this article.