Rotary type tool electrode used for electric melting and blasting machining of special-shaped holes with large length-diameter ratio

Abstract

The invention relates to the technical field of special machining, in particular to a rotary type tool electrode used for electric melting and blasting machining of special-shaped holes with the largelength-diameter ratio. The rotary type tool electrode aims to solve the problems that in the prior art, in the machining process of the irregular special-shaped deep holes, an electrode is difficultto manufacture, and scrap discharging and cooling are difficult to carry out in the machining process of the special-shaped deep holes. According to the adopted technical scheme, the rotary type toolelectrode comprises an electrode rotating portion and an electrode body portion. A step cylinder body is adopted as the structure of the electrode body portion. A through inner scrap discharging channel is formed in the axial center of the step cylinder body. A plurality of guide bars are arranged on the periphery of the large-diameter end of the front end of the step cylinder body in a uniformlydistributed manner, and the small-diameter end of the rear end is an electrode connecting section. A concave table is arranged on the middle portion of the cylinder body and communicates with the inner scrap discharging channel. A plane is arranged on the portion, between the concave table and the electrode connecting section, of the step cylinder body. A second connecting hole is formed in the portion, on the middle portion of the concave table of the step cylinder body, of the inner scrap discharging channel. The electrode rotating portion is arranged on the concave table of the cylinder body through a connecting pin and does rotary motion through the connecting pin.

Description

Technical field: [0001] The invention relates to the technical field of special processing, in particular to a rotary tool electrode used for electromelting explosion processing of special-shaped holes with a large length-to-diameter ratio. Background technique: [0002] With the development of the machinery manufacturing industry, frequent product updates, special-purpose deep holes with large aspect ratios can be seen everywhere in the field of modern deep holes, such as electromagnetic rails, rocket launchers, crankshaft oil holes, etc.; in such as long-distance The transmission medium, energy, information, etc. play an irreplaceable role for other types of holes. However, the shape of the special-shaped deep hole is irregular, the processing difficulty is high, and the processing workload is large. It has become a key process in mechanical processing. The route is long, the chips are not easy to discharge, and the heat of the chips is not easy to dissipate. Due to the l...

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Problems solved by technology

[0006] In view of this, the present invention provides a special-shaped hole with a large length-to-diameter ratio in order to solve the problems of electrode preparation difficulties in the process of irregular special-shaped deep hole processing and difficulty in chip removal and cooling in the process of special-shaped deep hole processing in the current technology. Rotary Tool Electrode for Electromelting Explosion Machining

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