Multi-body type long-distance coaxial hole grinding tooling

A multi-body type long-distance coaxial hole grinding tooling comprises a left core shaft, a left end hole grinding sleeve, a left adjusting back cap, a left back cap, a right end hole grinding sleeve, a right back cap, a right adjusting back cap, a right core shaft, a location nail and a through connection shaft. The grinding tooling is characterized in that the left core shaft and the right core shaft are respectively matched with the left end hole grinding sleeve and the right end hole grinding sleeve in grinding mode. The left core shat and the right core shaft are respectively connected with the left adjusting back cap, the left back cap, the right back cap and the right adjusting back cap through threads. The through connection shaft is respectively limited by the left core shaft and the right core shaft through the location screw to move relatively. The tooling has the advantages of being simple in structure, reliable in performance, low in manufacture cost and capable of improving grinding quality, in