Machining method of array type needle tip gate electrode

The invention belongs to the technical field of electrode machining, and discloses a machining method of an array type needle point gate electrode, which comprises the following steps: S1, an electrode blank is positioned and mounted at a machining part of a machine tool through a clamping tool, and the electrode blank can conveniently form a single-row type or multi-row type needle point gate electrode; s2, rough machining is conducted, the electrode blank is machined into a plurality of electrode teeth arranged in a single row or multiple rows, all the electrode teeth have the consistent pattern draft, and a base is formed; s3, finish machining is conducted, specifically, a curved surface area driving method is selected, and a spiral cutting mode is adopted for milling each electrode tooth subjected to rough machining; and S4, detecting the surface roughness, the shape and the concentricity of the electrode subjected to finish machining so as to judge whether the electrode is qualified or not. According to