High-stability limiting mechanism for machining

The utility model discloses a high-stability limit mechanism for machining, which relates to the technical field of limit equipment for machining and comprises a workbench, two connecting strips are symmetrically fixed at the top of the workbench, sliding grooves are formed in the tops of the two connecting strips, sliding blocks are slidably connected in the sliding grooves, and fixing blocks are fixed in the sliding grooves. A telescopic rod is fixed between the sliding block and the fixing block, a compression spring is arranged on the outer wall of the telescopic rod, first connecting plates are fixed to the top of the sliding block and the top of the fixing block, a mounting plate is fixed between the two first connecting plates, one end of the compression spring is fixed to the sliding block, the other end of the compression spring is fixed to the fixing block, and a second connecting plate is fixed to one end of each first connecting plate. A first threaded hole is formed in the top of the second conne