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卡规式气动测量仪由卡规式外径测量头与2000倍浮标式气动量仪配套组成。它用于测量12V240Z型柴油机气缸头阀圈的外径和椭圆度,以及进行尺寸分组,具有使用方便、准确和效率高等优点。一、卡规式气动测量头卡规式气动测量头结构简单、制造方便,如图1所示。我厂自制的测量头和上、下限校对规,均用9CrSi材料制成,表面硬度淬硬至HRC60～65,经多次回火、时效、冷处理等工艺,使尺寸能长期稳定。V形定位块与左、右喷嘴体贴合面必须经过研磨。气孔结合处可加密封圈,但不能影响V形定位块和左、右喷油嘴体的贴合效果。在组装后,不应有泄漏现象,以保证测量尺寸的准确精度和稳定性。
Card gauge pneumatic measuring instrument by the gauge card diameter measuring head and 2000 times buoy pneumatic measuring instrument supporting composition. It is used to measure the outer diameter and ovality of the 12V240Z diesel cylinder head valve ring, as well as the size of the group, with the advantages of easy to use, accurate and efficient. First, the card gauge pneumatic measuring head card gauge pneumatic measuring head structure is simple, easy to manufacture, as shown in Figure 1. My factory-made measuring head and the upper and lower proofreading rules are made of 9CrSi material, the surface hardness hardened to HRC60 ~ 65, after repeated tempering, aging, cold treatment and other processes, the size of long-term stability. V-shaped positioning block and left and right nozzle body fit surface must be ground. Stomatal junction can be sealed ring, but can not affect the V-shaped positioning block and left and right nozzle body fit effect. After assembly, there should be no leakage to ensure the accuracy and stability of measuring dimensions.