Correcting auxiliary mechanism for precision machining of mold

The correction auxiliary mechanism comprises an operation table, clamping grooves are formed in the middle positions of the two sides of the top and the bottom of the operation table, and a U-shaped mounting plate matched with the operation table is placed at the top of the operation table; a pull block is pulled to move in a first through groove, then an arc-shaped sleeve rod is driven to move in an annular opening sleeve to compress a second spring, and then the annular opening sleeve and components above the annular opening sleeve can be clamped to the outer side of an operation table to be moved; when the annular opening sleeve and the parts above the annular opening sleeve move to the designated position, the pull block is loosened, the arc-shaped sleeve rod can be driven to restore and be clamped into the clamping groove through the elastic restoring force of the second spring, then the assembling operation of the U-shaped mounting plate and the parts above the U-shaped mounting plate and the operation