The invention provides an injection mold and a
machining and assembling technology. The injection mold comprises a fixed mold plate, a movable mold plate, a first inner mold, a second inner mold, at least one datum hole and locating pieces, wherein the first inner mold and the second inner mold are installed in the fixed mold plate and the movable mold plate correspondingly, each datum hole penetrates through the fixed mold plate, the first inner mold, the second inner mold and the movable mold plate at the same time, and the locating pieces are inserted into the datum holes. According to the injection mold, through the uniform datum, the inner mold of the injection mold is machined according to the uniform datum, the
machining datum is also used as the assembling datum, and the precise locating effect is achieved; and in this way, the defects that the frame forming precision is low, the datum faces of the inner molds deviate, screw receding locating is ineffective and the datums are respectively independent are overcome, the
machining precision is improved, and finally the problems of
dislocation, segment gaps and flashes of products are solved. The products are made to reach the ideal state that the appearance and the hand feeling are both good. Meanwhile, zero-error one-time machining is ensured, repeated machining and the risk of scraping of the inner molds are avoided, the products produced through the mold discharging one product once or the mold discharging multiple products once are significantly improved, and the mold precision is also significantly improved.