空气锤上、下砧平面的对正,传统方法是靠打紧木楔来保证。实际上,因锤在工作过程中砧座的跳动,会使木楔振松,甚至退出,造成机身或砧座的移动,达不到理想的对正目的。当错移量超过3毫米时,不得不停锤调整,重新打紧木楔,不但麻烦,而且影响正常生产。 Air hammer, the alignment of the lower anvil, the traditional method is to ensure tight wedge. In fact, because the hammer beats the anvil during the work process, the wedge will loosen or even exit, resulting in the movement of the fuselage or the anvil, failing to achieve the desired alignment. When the wrong amount of displacement exceeds 3 mm, had to stop hammer adjustment, re-tighten the wedge, not only trouble, but also affect the normal production.