Machining method of array type needle tip gate electrode
A processing method and array technology, applied in metal processing equipment, manufacturing tools, details of milling machine equipment, etc., can solve the problems of time-consuming error rate, inability to carry out batch processing, low qualified rate of tip gate quality, etc., to achieve consistent finished products Good performance, avoid manual input, shorten the effect of installation time
Active Publication Date: 2022-03-29
成都宝利根创科电子有限公司
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Problems solved by technology
[0005]
It can be seen that the existing single-head needle gate electrode has the following defects: before the discharge machining of the needle gate, it is necessary to manually adjust the installation position of the electrode structure for many times, the operation is very time-consuming and the error rate is high, resulting in The qualified rate of the obtained pinpoint gate is low, and it cannot be processed in batches
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specific Embodiment
[0069] In this specific embodiment, the single-row or multi-row pinpoint gate electrode structure requires processing: first, the shape of the electrode is complete, and the teeth cannot be broken, resulting in insufficient quantity required for the design; The inner wall of the gate is sunken, and the gate cannot be taken out smoothly during demoulding; the most important thing is to keep the size consistent, the position must be accurate, and the center eccentricity must be controlled within 0.005mm, otherwise it cannot be used for processing at all. Secondly, the surface roughness of processing and manufacturing is required to be very good, so as to ensure that the surface of the workpiece is smooth after discharge, and it is convenient for the glue-in position to be demoulded smoothly. This kind of single-row or multi-row needle-point gate electrode structure cannot be processed by lathe or grinding. It is manufactured by CNC machining center, because processing such a thin...
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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 the invention, a single-row or multi-row needle point gate electrode can be processed, the method is suitable for the discharge machining of batch single needle point gates, and the multi-time installation and debugging are not needed in the discharge machining process of the needle point gates.
Description
technical field [0001] The invention belongs to the technical field of electrode processing, and in particular relates to a processing method for an array type needle-point gate electrode. Background technique [0002] Needle point gate generally refers to a small gate with a diameter of less than 1mm in the injection mold. It has very little residual trace on the part, the gate solidifies quickly and is easy to remove. It can be applied to various forms of products to realize automatic production. When processing the needle-point gate, the needle-point gate is usually clamped on a special fixture, and then the needle-point gate is subjected to electrical discharge machining with an electrode connected to an electric discharge fixture. [0003] In the prior art, the commonly used pinpoint gate electrode is a structure consisting of a needle-shaped electrode with a head and a circular base 8 connected to the electrode (such as figure 1 ). This kind of electrode structure ca...
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IPC IPC(8): B23C3/00
CPCB23C3/00
Inventor 崔育曾连全万有军杨兵成磊席刚郭芝忠林岗
Owner 成都宝利根创科电子有限公司