Novel repair tool for three-jaw chuck of lathe

The utility model relates to a novel repair tool for a three-jaw chuck of a lathe. The novel repair tool is characterized by comprising a clamping mechanism and a grinding mechanism, and further comprising a spring steel wire (1), wherein the clamping mechanism comprises a first support rod, a second support rod and a third support rod; a through hole is formed in each end of each support rod (2); one end of the spring steel wire (1) penetrates into the through hole in one end of the first support rod, then penetrates from the through hole in the other end of the first support rod, penetrates into the through hole in one end of the second support rod, then penetrates from the through hole in the other end of the second support rod, penetrates into the through hole in one end of the third support rod, then penetrates from the through hole in the other end of the third support rod, and is fixedly connected with the other end of the spring steel wire (1). Tryouts show that the novel repair tool can be used for repairing the three-jaw chuck on the lathe directly instead of dismounting the three-jaw chuck and repairing the three-jaw chuck on dedicated equipment, so that the use is convenient.