Connecting rod surface milling tool

The utility model provides a connecting rod surface milling tool which comprises a base, two positioning assemblies are arranged on the base in a spaced mode, each positioning assembly comprises a positioning table, a rotatable adjusting screw rod and a plurality of movable positioning clamping blocks are arranged on each positioning table, the adjusting screw rods are vertically arranged on the positioning tables, and the positioning clamping blocks are arranged on the adjusting screw rods. The positioning clamping blocks are arranged in the circumferential direction of the adjusting screw rod at intervals, the moving direction of the positioning clamping blocks is consistent with the radial direction of the adjusting screw rod, the positioning table is further provided with a variable-diameter block, a limiting rod and a driving spring, the variable-diameter block is provided with a threaded hole matched with the adjusting screw rod, and the variable-diameter block and the driving spring abut against the tw