Fastening device for installing thin-wall sleeve

The utility model relates to the field of clamp tools, and discloses a fastening device for installing a thin-wall sleeve, which comprises a sleeve, a limiting ring fixedly installed on the sleeve, a locking ring placed on one side of the sleeve corresponding to the limiting ring, a plurality of pressing blocks fixedly installed on one side end of the sleeve corresponding to the locking ring, and rubber blocks fixedly installed on the inner walls of the plurality of pressing blocks. A plurality of fixing blocks in an annular array are fixedly installed on the inner wall of the sleeve, and a fixing device is fixedly installed at the position, corresponding to the center, of the fixing blocks. The thin-wall sleeve machining device is simple in structure, the pressing blocks are extruded in an extruding and tightening mode and in a thread tightening mode, then the thin-wall sleeve is extruded through the rubber blocks below the pressing blocks, and therefore the thin-wall sleeve can be machined conveniently. And