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根据GB2106-1980对V型缺口冲击试样的加工,其要求是非常严格的。特别是缺口部分,没有一定的加工夹具是难以达到的。为此我们制造了试样加工的夹具(如图1所示)。为使V型槽口与试样加工时保持平行垂直,在夹具的上半部安装夹槽,可拧动螺钉9作不平行度的调整。垂直度可在加工两座时调整后拧紧螺钉12。磨削好的试样装入槽内拧紧螺钉10,用木锤敲平,将偏心手炳向下压紧,而整个夹具座是固定在机床座床面上的。选用一定的进刀速度和吃刀深度,
According to GB2106-1980 on the V-notch impact specimen processing, the requirements are very strict. In particular, the gap, there is no certain processing fixture is difficult to achieve. To this end we have made a sample processing fixture (Figure 1). In order to keep the V-shaped notch perpendicular to the specimen during machining, a clip groove is installed in the upper half of the fixture, and the screw 9 can be tweaked to adjust the non-parallelism. The verticality can be adjusted in the processing of two screws tighten the screw 12. Grind the sample into the trough and tighten the screw 10, knock it out with a wooden hammer, and press the eccentric hand downwards. The entire clamp base is fixed on the machine bed. Use a certain amount of feed speed and depth of the knife,