The utility model provides an auxiliary positioning tool convenient for tapping
dumbbell pin fixture blocks, which comprises a positioning seat, and a transverse positioning stop block, a
lateral positioning stop block, a pressing component and a positioning plate which are arranged at the upper end of the positioning seat, and the pressing component is arranged on one side of the
lateral positioning stop block in an opposite manner; a clamping channel for clamping the
dumbbell pin clamping block is formed between the
lateral positioning stop block and the transverse positioning stop block, the transverse positioning stop block is adjacent to the lateral positioning stop block and right faces one end of the clamping channel so that the
dumbbell pin clamping block placed in the clamping channel can be transversely stopped and limited, and the dumbbell pin clamping block can be clamped by the lateral positioning stop block through the telescopic movement of the pressing
assembly in the direction of the lateral positioning stop block. The dumbbell pin clamping block placed in the clamping channel can be clamped and fixed; and the positioning plate is rotatably arranged at the upper end of the lateral positioning stop block and can assist a
trepanning drill bit of a drilling
machine in
trepanning and positioning the dumbbell pin clamping block which is clamped and fixed, the dumbbell pin clamping block can be rapidly clamped and fixed, the stability is good, operation is convenient, positioning and alignment are convenient, and the
trepanning efficiency of the dumbbell pin clamping block is improved.