Hard alloy hole boring cutter

Abstract

The invention discloses a hard alloy hole boring cutter, which mainly comprises a cutter body, a cutter slice, a cutter pressing screw, a positioning screw and a pressing plate, wherein a cylindrical hole is formed in one end head of the cutter body; the cutter pressing screw is formed by a cylindrical segment, a conical segment and a screw segment with a screw thread; the screw segment of the cutter pressing screw is connected to the cutter body through the cylindrical hole; the cutter slice is tightly propped against the conical segment of the cutter pressing screw; when the cutter pressing screw is screwed in, the cutter slice tightly propped against the conical segment extends outwards; and the cutter slice is fastened by tightening the positioning screw through the pressing plate. When the cutter pressing screw is screwed out, the cutter slice tightly propped against the conical segment contracts to the center, so that the machining size is reduced; and when the positioning screw is screwed in, the cutter slice tightly propped against the conical segment extends outwards, so that the machining size is enlarged; and the hole boring cutter can work on a presetter, so that the auxiliary time of replacement and regulation of the cutter is reduced and the production efficiency is improved greatly. In addition, the hard alloy hole boring cutter also has the advantages of good machining quality, reduction in production cost and high economic benefit.

Description

technical field [0001] The invention relates to a tool, in particular to a carbide boring tool. Background technique [0002] Boring is the further processing of forged, cast or drilled holes. Boring can enlarge the aperture, improve precision, reduce surface roughness, and can better correct the deviation of the original hole axis. Boring tool is a kind of boring tool, usually with round shank, and there are also square tool holders for larger workpieces. The most commonly used occasions are inner hole processing, hole reaming, profiling, etc. There are one or two cutting parts, specially designed for roughing, semi-finishing or finishing the existing holes, and can be used on boring machines, lathes or milling machines; our factory processes bearing sleeves from tube stock on lathes The high-speed steel boring tool is used for boring. Due to the low cutting speed allowed by high-speed steel, high-speed steel is expensive and the tool manufacturing cost is high. If the cut...

AI Technical Summary

Problems solved by technology

There are one or two cutting parts, which are specially used for roughing, semi-finishing or finishing the existing holes, and can be used on boring machines, lathes or milling machines; our factory processes bearing sleeves from tube material on lathes The high-speed steel boring tool is used for boring. Due to the low cutting speed allowed by high-speed steel, high-speed steel is expensive, and the tool manufacturing cost is high. If the cutting speed is increased, the life of the boring tool will be reduced sharply, which will inevitably cause a lot of waste. , so it is necessary to propose a boring tool that improves production efficiency and improves service life at the same time

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