Hydraulic oil cylinder polishing device

The utility model provides a hydraulic oil cylinder polishing device, and belongs to the technical field of hydraulic oil cylinder machining. The device comprises a treatment chamber and electric telescopic rods, the two electric telescopic rods are located on the two sides of the treatment chamber, the output ends of the electric telescopic rods are fixedly connected with a mounting plate, and the side wall of the treatment chamber is in threaded connection with an adjusting stud; through cooperative use of a telescopic block, a telescopic sleeve, a fixing bolt, an adjusting hole and a spray head, chippings, dust and the like on the surface or a polishing area of a hydraulic cylinder can be blown away while the hydraulic cylinder is polished, in addition, a polishing point can be cooled, the effect of equipment is improved, and the service life of the equipment is prolonged; a worker can adapt to hydraulic cylinders with different inner diameters by adjusting the positions of fixing bolts in different adjust