China's machinery manufacturing industry is in an industrial state of transformation and development. The industry's technical level is developing rapidly, production concentration is high, and market access is very large. Our company has advanced machinery manufacturing technology, a group of outstanding machinery manufacturing R&D personnel and perfect standardized quality supervision and management, and is committed to the globalization, networking, automation and green development of the machinery manufacturing industry. Mechanical accessories refer to various parts and accessories used for replacement and maintenance of construction machinery, production equipment, transportation equipment, etc. of enterprises, such as crankshafts, pistons, bearings, etc. In the production process of mechanical accessories, in order to achieve insulation, rust prevention and other purposes , paint spraying will be done on the surface of mechanical parts, so professional spraying device is essential. In the existing technology, most of the manual spraying methods are used when spraying the shaft machinery parts, which not only wastes human resources, but also causes uneven painting. However, there is no collection device in the process of painting, which will waste a lot of paint. Therefore, we propose a spraying device for mechanical parts. The purpose of this utility model is to provide a spraying device for mechanical accessories, the device is provided with a second groove on the platform, and the atomizing nozzle, the first chuck and the second chuck are arranged in the second groove A through hole is opened on one side of the flat plate, and a connecting pipe is arranged inside the through hole, and one end of the connecting pipe is connected to the inside of the second groove, and the other end is connected to the inside of the paint box. When the accessories are painted, the excess paint can be effectively collected, which saves resources to a certain extent. By arranging a motor, a first chuck, a second chuck and an electric sliding table on the flat plate, not only the device can be clamped The shaft-type mechanical parts of different lengths can also be driven by the motor to rotate when the paint is sprayed, so that the paint can be sprayed evenly, so as to solve the above-mentioned problems in the background art.