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Reaming method and tool thereof for small-diameter deep holes

A small-diameter, deep-hole technology, applied in the direction of drilling/drilling equipment, drilling tool accessories, manufacturing tools, etc., can solve the problems of surface roughness and straightness that are difficult to guarantee, and achieve high straightness and strong economic applicability , good surface roughness

Inactive Publication Date: 2017-07-21
SHANXI PINGYANG IND MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the surface roughness and straightness are difficult to guarantee when the existing gun drill is used for small-diameter deep hole reaming, the present invention provides a small-diameter deep hole reaming method and its tool

Method used

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  • Reaming method and tool thereof for small-diameter deep holes
  • Reaming method and tool thereof for small-diameter deep holes

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Embodiment Construction

[0017] The small-diameter deep hole reaming method improves the cutting process on the basis of the gun drilling processing method, and is characterized in that it includes the following steps:

[0018] (1) The rough machining of the outer circle of the workpiece is processed by the double top inner hole machining method;

[0019] (2) Using the first step benchmark, process the gun drill guide hole at one end of the workpiece, and process the thread at the other end;

[0020] (3) Block the other end of the workpiece by using the threaded plug of the existing auxiliary tool;

[0021] (4) Start processing, adopt the method of one clip and one top, and the processing and feeding process is as follows: use the macro program to control the drill to advance 0.08mm, then rewind 3mm, then fast forward 2.99mm, and then feed 0.08mm, the above Step cycle feed to the end of processing.

[0022] The small-diameter deep hole reaming tool is specifically to use the existing gun drill, the ...

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Abstract

The invention particularly relates to a reaming method and a tool thereof for small-diameter deep holes. The reaming method and the tool thereof for the small-diameter deep holes can solve the problem that the surface roughness and the straightness are difficult to guarantee when an existing gun-drill is used for reaming machining of the small-diameter deep holes. According to the reaming method for the small-diameter deep holes, the machining tool feeding technology specifically comprises the steps that a drill bit moves forwards by 0.08mm, then quickly withdraws by 3 mm, then quickly moves forwards by 2.99mm and then is fed by 0.08 mm, and the steps are circularly fed to the end of machining. According to the tool for the small-diameter deep holes, specifically, a tool bit of a gun-drill is sharpened at a certain angle, the included angles of an oil passing surface 1 and an oil passing inclined surface 7 is 20 degrees and 15 degrees respectively, the included angle between an inner tool edge clearance angle surface 2 and a main inclined surface 5 is 15 degrees, the included angle between a tool nose clearance angle surface 4 and a vertical surface is 25 degrees, and the included angle between a clearance angle surface 3 and an auxiliary inclined surface 6 is 20 degrees. The reaming method and the tool thereof for the small-diameter deep holes have the advantages that the deep holes with the high straightness and the good surface roughness can be machined, the efficiency is high, the cost is low, and the application range is wide.

Description

technical field [0001] The invention relates to a deep hole mechanical processing technology, in particular to a small-diameter deep hole reaming method and a cutting tool thereof. Background technique [0002] There are many types of tools for deep hole processing, including gun drills, ejector drills, casing drills, carbide indexable deep hole drills, internal chip removal deep hole drills, and pressure dry deep hole processing systems. [0003] Generally, holes with a ratio of hole depth to hole diameter greater than 10 are called deep holes. At present, small-diameter deep holes are processed according to the traditional method, and only extended twist drills can be used. Every time the depth of processing is about 1 to 2 times the diameter, the tool must be retracted to remove chips. Not only the processing accuracy is low, the surface roughness is poor, the processing efficiency is low, and labor The strength is high, the quality is difficult to guarantee, and it is e...

Claims

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Application Information

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IPC IPC(8): B23B35/00B23B43/00B23B51/00B23Q11/10
CPCB23B35/00B23B43/00B23B51/0018B23B2251/04B23Q11/10
Inventor 侯生树韦国栋王桂晋卫超陶祥玉苗琪韩伟吴端叶
Owner SHANXI PINGYANG IND MACHINERY
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