End mill pretreatment clamp

The utility model discloses an end mill pretreatment clamp which comprises an installation frame, installation holes are formed in the two sides of the top end of the installation frame, limiting mechanisms are clamped in the installation holes, fixing pins are arranged in the limiting mechanisms, and limiting grooves are formed in the two sides of the interior of the installation frame. The clamp comprises a mounting frame, a clamp body is clamped in the mounting frame through a limiting groove, limiting blocks are fixedly mounted on one side of the clamp body, one side of each limiting block is matched with the interior of the limiting groove, the number of the limiting blocks is four, the four limiting blocks are equally divided into two groups, and the depth of the limiting groove is equal to one half of the thickness of the mounting frame. According to the scheme, the clamp utilizes the protective pad to reduce the friction force between the clamping plate and the end mill, so that the quality of the end