Detection and analysis of the runout of the valve seat
Detection and analysis of the runout of the valve seat. The detection speed is fast and the valve seat runout can be accurately detected, which is convenient for improving the detection accuracy and the detection speed. In order to ensure the accuracy of the detection, the guide sleeve of the same aperture should be used with four sets of tolerances. During operation, select a suitable mandrel from large to small, insert one end of the mandrel into the hole of the inspection tool, and then set the inspection tool. We often encounter the contradiction of low quality, poor precision and high precision of workpieces. Although this measurement method is intuitive, only the parts are fixed on a special tire with an auxiliary part, and the parts are processed together with the auxiliary parts. By measuring the diameter of the auxiliary parts and controlling the amount of the feed, the dimensional accuracy of the parts is ensured. This kind of measuring method consumes a large amount of aids. In order to reduce the consumption of the auxiliary parts, in the first processing, if the reference surface is processed and then one side is processed, the perpendicularity error is definitely higher than the former due to the error of the square. It’s so big that the back faces are hard to process and will have to be reworked at the end. Therefore, the machining accuracy is also required under low-precision measuring tools, and the processing technology is also very important. The final infeed scale of the lathe does not need to be equipped with a large sector gear for each auxiliary part in the future. The combination of the incision and the auxiliary part ensures the machining accuracy of the part. Due to the many factors affecting the machining accuracy, in some special cases, the machining size will change even under the same scale. Therefore, after machining a certain number of parts, the auxiliary tool will be used again. This method can ensure the dimensional accuracy of the parts in actual use, and has achieved good results.
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