Small-size hand-hold deep small hole composite deburring device

Abstract

The invention relates to a small-size hand-hold deep small hole composite deburring device used for complicated case parts, which belongs to a mechanical processing tool. The deburring device comprises a work table, a fixed support frame, a vibration generator and a vibration converter provided with a deburring tool, wherein the fixed support frame and the vibration generator are arranged on the work table, the vibration converter with the deburring tool is arranged on the fixed support frame through strip steel, he vibration converter with the deburring tool is connected with the vibration generator, a micro powder grinding container is arranged on the work table, a water container is higher than the micro powder grinding container and is arranged on the work table, the deburring tool is connected with the vibration converter, the deburring tool is a cylindrical slender metal rod, the center of the front end of the metal rod is provided with a penetrated open rectangular groove with the width between 0.25 mm and 0.3 mm, and the depth of the rectangular groove is 3 to 5 times of the diameters of the metal rod. The invention is applicable to the deburring of deep small holes with the length-to-diameter ratio greater than 40 and the diameter phi smaller than 3 mm, and the processing efficiency is improved by more than 50 to 70 percent.

Description

technical field [0001] The invention belongs to mechanical processing tools, and relates to a hand-held deep and small hole composite deburring device for miniaturization of complex shell parts. Background technique [0002] The hydraulic valve body and shell are the basic assembly parts of the hydraulic system. Compared with other parts, its structure is complex, and there are many criss-cross holes inside. They communicate with each other to form a complete oil circuit system. Among these intersecting holes, the diameter of a considerable part of the holes is less than Ф3mm, and the aspect ratio is greater than 40. During the processing of these holes, burrs are inevitably generated at the intersections. Because the parts where these burrs are generated go deep into the interior of the parts, the generated burrs cannot be seen or touched, and it is difficult to remove them. If they are not removed cleanly, it will cause blockage of the oil circuit, affect the reliability ...

AI Technical Summary

Problems solved by technology

Because the parts where these burrs are generated go deep into the interior of the parts, the generated burrs cannot be seen or touched, and it is difficult to remove them. If they are not removed cleanly, it will cause blockage of the oil circuit, affect the reliability and life of the parts, and even make the hydraulic system function failure, which will bring great hidden danger to the hydraulic oil circuit

[0003] For this kind of complex structure, there are many deep and small holes communicating with each other inside the burrs. At present, the technology of manual burrs is basically used, that is: with the help of cold light source and endoscope observation, with self-made hand tools (special-shaped Scraper, file, special grinding tool, etc.) to remove burrs, labor intensity is high, cycle time is long, cost is high, efficiency is low, it is difficult to ensure consistent product quality, it is not conducive to assembly line operation during batch production and to realize the flexibility of product manufacturing. It is also easy to produce undue scratches during the deburring process, resulting in rework or even scrapping, which increases the manufacturing cost of the part by more than 10%

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