在机械设备中,为了保证联接件的定位精度,通常采用销钉定位。这种方法对于更换的联接件,很难保证销钉孔的相对位置精度。尤其是淬火后轻度变形的更换件,配钻与铰孔更为困难。给加工和装配带来较大的麻烦。为此,我们采用浇灌低熔点合金的方法,利用低熔点合金冷凝时体积稍有膨胀的特性来固定销钉。此方法对于机床、各类夹具中易损的零部件和冷 In machinery and equipment, in order to ensure the positioning accuracy of the coupling, pin positioning is usually used. This method for the replacement of the coupling, it is difficult to ensure the pin hole relative position accuracy. In particular, mild deformation after quenching replacement parts, with diamonds and reaming more difficult. To the processing and assembly caused greater trouble. To this end, we use the method of watering low melting point alloy, the use of low melting point alloy condensate slightly bulging characteristics to fix the pin. This method for the machine tools, various types of fixtures vulnerable parts and cold