Coating paint film preparation device

The utility model belongs to the field of aviation manufacturing, and particularly relates to a coating paint film preparation device. The preparation device comprises a wooden frame device with a hollow structure and a set of clamp device with a hollow structure, wherein the clamp device is consistent with the wooden frame device in size. According to the utility model, the damage of thumb pins to the wooden frame is eliminated, the service life of a testing device is prolonged, and the problems of small contact area between the thumb pins and the coating and the non-uniform stress are solved; meanwhile, the thickness of the coating paint film prepared through the device is more uniform, and the reliability, stability and repeatability of the testing data can be guaranteed.