Ultra-deep hole precision boring tool

Abstract

The invention discloses an ultra-deep hole precision boring tool and machining and using methods thereof. The ultra-deep hole precision boring tool is designed in two modes, namely the non-flat tail mode and the flat tail mode, wherein the non-flat tail tool is composed of a non-flat tail tool handle (1), an abrasion-resistant supporting block (2), a transpositional fine adjustment fine boring head (3), a blade (4), a cushion plate (5), a pull rod (6), a guiding block (7), a nut (8) and the like; and the flat tail tool is composed of a flat tail tool handle (9), an abrasion-resistant supporting block (2), a transpositional fine adjustment fine boring head (3), a blade (4), a supporting plate (10), a locking plate (11) and the like. The ultra-deep hole precision boring tool is a final finish machining tool, the capacity for machining high-precision deep through holes or blind holes with the length-diameter ratio being greater than eight times on common devices such as common turning lathes, milling machines, boring machines and parallel vices can be improved, the stability and controllability of finish machining quality are improved, the normal distribution requirement of hole machining quality is met, and the application range of the devices of the type is enlarged; and the ultra-deep hole precision boring tool is simple in structure, low in production cost and convenient to use.

Description

technical field [0001] The invention relates to a precision boring tool for ultra-deep holes with a guide bar and a method for using the same, which belongs to the field of mechanical processing, and is particularly applicable to ordinary lathes, milling machines, boring machines, clamping machines, etc. with a tapered spindle. More than 8 times the finishing of high-precision through holes or blind holes, improve the processing range and capacity of this type of ordinary equipment, and greatly improve the precision of equipment processing ultra-deep holes, improve the stability and controllability of finishing quality, Meet the normal distribution requirements of hole processing quality. Background technique [0002] Under normal circumstances, it is difficult to effectively process high-precision through holes or blind holes with an aspect ratio greater than 8 and a hole accuracy of IT6 using conventional hole reaming processing methods on ordinary equipment. There are man...

AI Technical Summary

Problems solved by technology

[0002] Under normal circumstances, it is difficult to effectively process high-precision through holes or blind holes with an aspect ratio greater than 8 and a hole accuracy of IT6 using conventional hole reaming processing methods on ordinary equipment. There are many reasons for this. One is the low accuracy of equipment, The rigidity is poor; the second is that the existing conventional tools on ordinary equipment have poor rigidity, the cutting quality is not easy to control, and basically cannot meet the special product quality requirements; the third is that other special structural tools such as reamers and reamers are used on ordinary equipment. When extruding knives, etc., it has very high requirements for the semi-finishing quality of the hole, such as the allowance for finishing, the cylindricity and roughness of the hole, etc. At the same time, it also has very high requirements for the quality of the workpiece blank and heat treatment quality. These defect factors directly lead to poor controllability, low pass rate and long processing cycle of the final processing quality of the product, which basically cannot meet the normal distribution requirements of hole processing quality.

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