The invention belongs to the technical field of sleeve
machining, and discloses a turnover device for
machining a sleeve, which comprises a base, and further comprises a
cushion block fixedly arranged on the base and used for supporting the sleeve; and the sleeve clamping assemblies slide at the two ends of the top of the base. The two fabric clamping cloths on the two casing
pipe clamping assemblies are arranged at the two ends of the casing
pipe in a sleeving mode correspondingly, then tightening force is applied to the fabric clamping cloths through the pressure applying
assembly, the
machining face of the casing
pipe is adjusted, repeated disassembly, re-clamping and alignment do not need to be conducted in the process, the discrete
operation mode of repeated disassembly of the casing pipe workpiece is avoided, and the machining efficiency of the casing pipe is improved. The auxiliary time is too long, the production efficiency is low, the labor intensity of operators is increased, meanwhile, the situation that the consistency of positioning references is damaged due to frequent clamping operation is avoided, the key
dimensional precision, geometric shape precision and
mutual position precision of parts are guaranteed, and then the consistency and stability of the quality of finished products are guaranteed.