Fine boring cutter

Abstract

The invention discloses a fine boring cutter and belongs to the field of machined cutters. The fine boring cutter comprises a round handle, a cutter body and a sliding sleeve shaft, wherein the round handle is inserted in a machine tool; a through hole is formed in the cutter body; a fine tuning device is arranged in the through hole; the sliding sleeve shaft is arranged at the other end of a driven adjusting screw and is movably connected with the driven adjusting screw through a fine tuning nut; a limiting structure is arranged at one end of the sliding sleeve shaft; the sliding sleeve shaft is fixedly connected with a blade bearing through the limiting structure. Compared with the prior art, a double-dial structure formed by combining a driving adjusting dial with a driven adjusting dial is adopted, has the maximum precision of 0.001 mm, and can carry out quick and precise fine tuning on the working radius of the fine boring cutter to realize the purpose of high precision fine tuning, so that the fine boring cutter has excellent market prospect and economic value.

Description

technical field [0001] The invention belongs to the field of machining tools, in particular to a fine boring tool. Background technique [0002] A milling cutter is a rotating tool with one or more teeth for milling. When working, each knife tooth cuts off the allowance of the workpiece intermittently in turn. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines. They are divided into fine boring cutters and fine boring cutters according to the machining accuracy. [0003] The fine boring tool is a kind of boring tool, which can be used on boring machines, lathes or milling machines for semi-finishing or finishing the existing holes. With the rapid development of industrial technology, fine-tuning fine boring tools are more and more used in production practice. In order to obtain high dimensional accuracy when boring holes, the working radius of the boring tool for finishing needs to be adjusted acc...

AI Technical Summary

Problems solved by technology

In order to obtain high dimensional accuracy when boring holes, the working radius of the boring tool for finishing needs to be adjusted accurately. This kind of fine boring tool is limited by the fine boring unit, so the adjustment range is small, and the adjustment accuracy is not high. In addition, the connection between the blade seat of the existing boring tool and the body of the boring tool is mostly incomplete positioning, and the blade The seat and the sliding sleeve shaft are prone to relative movement, which is likely to reduce the boring efficiency of the product and the bore hole diameter is unstable; The gap between the seat and the hole wall of the workpiece cannot fall quickly, and the iron filings are squeezed between the gap between the insert seat and the hole wall during processing, which scratches the workpiece processing surface and greatly reduces the processing accuracy of the product surface

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