Novel inverted taper hole boring head

Abstract

The invention discloses a novel inverted taper hole boring head which comprises a cutter handle (1.7). A transverse guide groove is formed in the lower portion of the cutter handle (1.7) to drive a boring cutter rod (1.2) to rotate together, a cutter head (1.1) is installed on the boring cutter rod (1.2), the boring cutter rod (1.2) is provided with an upper guide rail and a left-end guide rail, the upper guide rail is matched with the transverse guide groove of the cutter handle (1.7), an inner shell I (1.3) is provided with a guide groove with inclination matched with the left-end guide rail, the guide groove with inclination drives the boring cutter rod (1.2) and the cutter head (1.1) to move in the radial direction, and a precise centripetal thrust ball bearing is installed between an inner shell II (1.4) and a boring head shell (1.5). According to the novel inverted taper hole boring head, the clamping and positioning speed is high, and the taper hole machining efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of machining, in particular to a novel inverted taper boring head. Background technique [0002] Boring is an inner diameter cutting process that uses a tool to enlarge a hole or other circular contours. Its application range generally ranges from semi-rough machining to finishing. The tool used is usually a single-edged boring tool. The prefabricated hole is expanded to a certain size to make it meet the required precision and surface roughness. Boring is generally carried out on boring machines, machining centers and combined machine tools. It is mainly used to process cylindrical holes on workpieces such as boxes, brackets and machine bases. Tapped holes, grooves in holes and end faces. [0003] Boring inner holes, including boring inner taper holes is a typical processing technology, which can be easily realized on CNC machine tools or general-purpose boring machines, but when it is required to process ...

AI Technical Summary

Problems solved by technology

[0003] Boring inner holes, including boring inner taper holes is a typical processing technology, which can be easily realized on CNC machine tools or general-purpose boring machines, but when it is required to process small reverse taper holes on large workpieces At this time, the traditional process method is a bit clumsy, and the man-hours are too expensive, and it may not be able to achieve the effect. For example, a small mouth diameter ф22, depth 30mm, cone angle 28 ° inverted cone is processed on the joint of a anchor chain weighing 900kg. When drilling holes, whether it is processed on a boring machine or a lathe, special tooling is required for clamping and positioning. The joint cutting takes no less than 30 minutes, and the quality is not necessarily satisfactory. Some factories even have to use small grinding heads. Hand-polished, its quality and efficiency are unsatisfactory

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