Assembling device used for machining mechanical parts and provided with precise grabbing structure

The invention discloses an assembling device used for machining mechanical parts and provided with a precise grabbing structure, and relates to the technical field of mechanical part machining. The assembling device comprises a machining part and an electric sliding rail, a conveying belt is arranged outside the machining part, a collecting frame is installed outside the rear end of the conveying belt, and a main body is arranged at the left end of the exterior of the collecting frame. A storage cavity is formed in the left end of the interior of the main body, a placing groove is formed in the storage cavity, and a working disc is mounted at one end of the exterior of the storage cavity. By arranging a grasping device, a hydraulic suction cup can be moved vertically through a pneumatic rod in the use process. An article to be assembled in the placing groove can be adsorbed by moving the hydraulic suction cup up and down, the external surface of the article cannot be damaged when the article is adsorbed and f