Self-adaptive tool for machining thin-wall cylinder sleeve

The utility model discloses a self-adaptive tool for processing a thin-wall cylinder sleeve, which comprises a U-shaped support, the top of the U-shaped support is fixedly connected with a branch pipe, and the top end of the branch pipe is of a plugging structure. Through the arrangement of the co-driving rotating assembly, the pressure control supporting and clamping assembly, the thread driving assembly, the PLC and the servo motor, the four supporting and clamping rods can be conveniently driven to expand outwards or contract inwards, supporting and fixing in the thin-wall cylinder sleeve are achieved through expansion, clamping and fixing on the outer side are achieved through contraction, and the clamping efficiency is improved. The pressure is conveniently detected during supporting and fixing or clamping and is automatically closed when a preset pressure value is reached, pressure-controlled supporting and fixing and pressure-controlled clamping and fixing of the thin-wall cylinder sleeve are achieved,