Preparation mold of ultrathin ultralight carbon fiber machine arm

The utility model relates to a preparation die of an ultrathin ultralight carbon fiber machine arm, which comprises an upper die and a lower die matched with the upper die, and the upper die and the lower die are of a vertically symmetrical structure; wherein a groove consistent with a product in shape is formed between the upper mold and the lower mold, a carbon fiber prepreg is arranged in the groove consistent with the product in shape, and the carbon fiber prepreg is attached to the silica gel insert; the silica gel insert is placed in the laid carbon fiber prepreg during preforming; afterforming, the silica gel insert is located in a machine arm to be formed, an air pipe is arranged in the silica gel insert, and the air pipe is connected with an external draught fan. The single machine arm manufactured by the utility model is light in weight and thin in thickness, and meanwhile, the use strength of the product is not influenced. 本实用新型涉及一种超薄超轻碳纤维机臂的制备模具，模具包括上模具和配套的下模具，上模具和下模具为上下对称的结构；一副模具一次成型四个机臂：上模具和下模具之