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我厂是生产柴油机的专业化工厂。在精加工12VE 230ZC柴油机气缸体上的主轴承孔时遇到了一个难题,因为要保证几个孔的同心度,所以是用一根长镗杆同时穿入所要镗的几个孔内,在夹具上进行加工。加工时先对好刀从孔端面镗进去2毫米左右深度,然后停下机床进行测量。因为孔中穿入镗杆,无法用卡尺等万能量具测量,只好用卡钳,效率低,容易出差错。为此,我们设计了专用量具,如图所示。它还可用于凸轮轴孔与各类箱体镗孔
Our factory is specialized in producing diesel engines. There is a problem in finishing the main bearing holes on the 12VE 230ZC diesel engine block because of the concentricity of several holes so that a long boring bar is used to penetrate several holes to be borne simultaneously, On the processing. When processing the first good knife boring from the hole end to about 2 mm depth, and then stop the machine for measurement. Because the hole into the boring bar, caliper and other universal measuring instruments can not measure, but to use calipers, low efficiency, easy to go wrong. To this end, we designed a special measuring tool, as shown. It can also be used for camshaft holes and various types of cabinet bores