Tool for machining variable frequency motor shell

The utility model relates to a tool for machining a variable-frequency motor shell, which comprises a bottom plate, three supporting columns arranged in an equilateral triangle shape are vertically installed at the upper end of the bottom plate, a pressing device is installed at the position, on one side of each supporting column, of the upper end of the bottom plate, two vertical plug pin holes are formed in the bottom plate, and two vertical plug pin holes are formed in the lower end of the bottom plate. The two bolt holes are located in one sides of the two supporting columns respectively,the bolt holes are through holes, bolts are inserted into the bolt holes from bottom to top, and bottom hole position limiting protrusions are arranged at the upper ends of the bolts. The device is accurate in positioning, convenient to machine and high in automation degree, and the production efficiency is greatly improved. 本实用新型涉及一种加工变频电机壳体的工装，包括底板，所述的底板上端竖直安装有三个呈等边三角形布置的支撑柱，该底板上端位于每个支撑柱的一侧均安装有压紧装置，所述的底板内设有两个竖直的插销孔，两个插销