Method for efficiently machining tooth-shaped pattern on surface of knob mold

The invention discloses a method for efficiently machining a tooth-shaped pattern on the surface of a knob mold. The method comprises the steps of mold design and machining, wherein the mold adopts detaching and embedding design and comprises a mold core, an insert and a sliding block, the insert and the sliding block which are matched with each other are machined respectively, and an insert hole matched with the insert and a T-shaped groove matched with the sliding block are machined in the mold core; electrode design, wherein an electrode is designed to be a single electrode, the single electrode is provided with a complete tooth-shaped pattern structure, and the electrode is machined; and sliding block assembling and positioning and discharging forming. According to the method, the single electrode is designed, one-time disassembling and assembling are conducted during discharging, repeated disassembling, assembling, correction and edge touching number searching are avoided, then manpower and material reso