Positioning mechanism for aerated block cutting machine

The utility model relates to the technical field of aerated block cutting, in particular to a positioning mechanism for an aerated block cutting machine, which comprises a working table, the upper surface of the working table is provided with a first limiting assembly and a second limiting assembly which are respectively propped against two adjacent side walls of an aerated block, and a third limiting assembly which clamps the aerated block together with the second limiting assembly; the third limiting assembly comprises a pressing plate slidably connected to the workbench in the vertical direction, a plurality of limiting columns slidably penetrate through the pressing plate in the vertical direction, and the arrangement direction of the limiting columns is the same as the arrangement direction of the second limiting assembly and the third limiting assembly. The aerated block cutting device can improve the aerated block cutting efficiency. 本申请涉及加气块切割的技术领域，尤其是涉及一种用于加气块切割机的定位机构，其包括工作台，工作台的上表面设有分别抵触于加气块相邻两侧壁的第一