JPS61173811A - Structure of grooving broach - Google Patents

Structure of grooving broach

Info

Publication number
JPS61173811A
JPS61173811A JP1207885A JP1207885A JPS61173811A JP S61173811 A JPS61173811 A JP S61173811A JP 1207885 A JP1207885 A JP 1207885A JP 1207885 A JP1207885 A JP 1207885A JP S61173811 A JPS61173811 A JP S61173811A
Authority
JP
Japan
Prior art keywords
finishing
teeth
blade
grooving
broach
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1207885A
Other languages
Japanese (ja)
Inventor
Takashi Aikawa
孝 相川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Subaru Corp
Original Assignee
Fuji Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Heavy Industries Ltd filed Critical Fuji Heavy Industries Ltd
Priority to JP1207885A priority Critical patent/JPS61173811A/en
Publication of JPS61173811A publication Critical patent/JPS61173811A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D43/00—Broaching tools
    • B23D43/02—Broaching tools for cutting by rectilinear movement

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)

Abstract

PURPOSE:To make it possible to simultaneously finish the side face of a groove in the process of grooving for the purpose of improving work efficiency and accuracy by making widths of the cutting edge of roughing teeth arranged in series smaller than those of the cutting edge of finishing teeth by a specified dimension and by providing the finishing teeth with side cutting edges. CONSTITUTION:Grooving roughing teeth 2 and grooving finishing teeth 3 are arranged in series on a broach body 1, and the roughing teeth 2 are formed with widths of the cutting edges 2a being smaller than finished dimension (a) by 0.03-0.06mm. And the finishing teeth 3 are formed with widths of the cutting edges 3a being same as finished dimension (a) and also with both the side faces of the finishing teeth 3 crossing at right angles to the cutting edges 3a provided with cutting edges 3b and 3b. A high accurate groove can be obtained without increasing machining process time by simultaneously finishing the side faces of the groove at the time of grooving by using a broach having such structure.

Description

【発明の詳細な説明】 （産業上の利用分野］ 本発明は、溝加工用のブローチ構造に関するものである
。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a broach structure for groove machining.

［従来技術］ 一般に、荒刃にて切削した後を、仕上げ刃にて切削し、
表面に所要精度を得る切削方法は公知であるが〈特開昭
５７−１７８６１３号）、溝加工用のものは、荒刃およ
び仕上刃の刃幅が同じであり、切削は、溝底に対しての
み行なわれている（実公昭５８−２３５４３号）。この
ため、切削、後に、ワークの溝の側面に横線の切削跡が
残る。そこで、その後、別の加工具を通して側面の仕上
げを行っている。[Prior art] Generally, after cutting with a rough blade, cut with a finishing blade,
A cutting method for obtaining the required accuracy on the surface is known (Japanese Patent Laid-Open No. 57-178613), but in the method for groove machining, the width of the roughing blade and the finishing blade are the same, and cutting is performed with respect to the groove bottom. (Utility Model Publication No. 58-23543). For this reason, horizontal line cutting marks remain on the side surfaces of the grooves of the workpiece after cutting. Therefore, the side surfaces are then finished using another processing tool.

なお、溝加工用ブローチ以外のもので、所要精度を得る
ためにバニシ部材を工具と一体に設けたものがある（特
開昭５６−１３４１２６号）。In addition to the broach for groove machining, there is a broach that has a burnishing member integrated with the tool in order to obtain the required accuracy (Japanese Patent Application Laid-Open No. 134126/1983).

［発明が解決しようとする問題点］ 本発明は、上記事情にもとづいてなされたもので、溝加
工の過程で、溝側面も同時に仕上げ加工できるようにし
、作業の能率化、精度の向上を図った溝加工用ブローチ
構造を提供しようとするものである。[Problems to be Solved by the Invention] The present invention has been made based on the above-mentioned circumstances, and aims to improve work efficiency and accuracy by making it possible to finish the groove side surfaces at the same time during the groove machining process. The present invention aims to provide a broach structure for groove machining.

［問題点を解決するための手段］ この目的のため、本発明は、荒刃と仕上刃とがブ、ロー
チの作動方向に直列配置されたものにおいて、上記荒刃
の刃幅を、仕上刃の刃幅より０．０３〜０．０６ｍｍ＋
小さい寸法に構成すると共に、上記仕上刃には、側刃を
構成したことを特徴とするものである。[Means for Solving the Problems] For this purpose, the present invention provides a tool in which a rough blade and a finishing blade are arranged in series in the operating direction of the roach, and the blade width of the rough blade is 0.03~0.06mm+ from the blade width of
The present invention is characterized in that it has a small size and that the finishing blade has a side blade.

［実　施　例］ 以下、本発明の一実施例を、第１図ないし第３図を参照
して具体的に説明する。図において、符号１はブローチ
本体であり、溝加工用の荒刃２と、仕上刃３とは直列配
置である。そして上記荒刃２は切刃２ａの幅が仕上寸法
ａよりも０．０３〜０．０６−−８！度小さくなってい
る。また上記仕上刃３は、切刃３ａの幅が仕上寸法ａに
なっている。そして、上記切刃３ａと直交する仕上刃３
の両側面にも、切刃３ｂ、　３ｂが形成されている。[Example] Hereinafter, an example of the present invention will be specifically described with reference to FIGS. 1 to 3. In the figure, reference numeral 1 is a broach main body, and a roughing blade 2 for groove machining and a finishing blade 3 are arranged in series. The width of the cutting edge 2a of the rough blade 2 is 0.03 to 0.06--8 greater than the finished dimension a! It is getting smaller. Further, in the finishing blade 3, the width of the cutting edge 3a is the finishing dimension a. Then, a finishing blade 3 perpendicular to the cutting blade 3a
Cutting edges 3b, 3b are also formed on both side surfaces of the blade.

実験によれば、ブローチ加工後の加工溝の側面粗さは、
従来方式（荒刃および仕上刃が同幅で側面切刃なし）で
、２３μから４２μのばらつきがあり、平均値で３６．
５μであるが、本発明のブローチによれば、６μから２
９μのばらつきであり、平均値で１５μである。According to experiments, the side surface roughness of the machined groove after broaching is
With the conventional method (roughing and finishing edges are the same width and there is no side cutting edge), there is a variation of 23μ to 42μ, with an average value of 36.
5μ, but according to the broach of the present invention, from 6μ to 2μ
The variation is 9μ, and the average value is 15μ.

このような精度は、ベアリングキャップのオイルシール
溝などのブローチ加工で有用である。また、コバ欠けな
どがさけられる点も有利であった。Such precision is useful in broaching processes such as oil seal grooves in bearing caps. Another advantage was that edge chipping could be avoided.

なお、上記荒刃２は側面に切刃を設けていないので、こ
れがブローチ加工の際のガイドとして働き、ワークに対
してブローチがガタ付くのを防止する効果があり、加工
精度の向上に一役はたしているものである。In addition, since the rough blade 2 does not have a cutting edge on the side, this acts as a guide during broaching and has the effect of preventing the broach from rattling against the workpiece, contributing to improving machining accuracy. It is something that exists.

［発明の効果］ 本発明は、以上詳述したようになり、荒刃が仕上刃より
０．０３〜０．０６　ｎｖ狭い幅になっており、仕上刃
が側面に切刃を持つという構成によって、溝加工時に、
同時に溝側面を仕上げ加工し、精度の高い溝を、加工工
数を増すことなく実現できるという効果が得られる。[Effects of the Invention] As described above, the present invention has a structure in which the rough blade has a width narrower by 0.03 to 0.06 nv than the finishing blade, and the finishing blade has a cutting edge on the side. , during groove machining,
At the same time, the side surfaces of the groove are finished and a highly accurate groove can be realized without increasing the number of machining steps.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例を示す側面図、第２図は第１
図のＡ−Ａ断面口、第３図は第１図のＢ−Ｂ断面図であ
る。FIG. 1 is a side view showing one embodiment of the present invention, and FIG. 2 is a side view showing one embodiment of the present invention.
FIG. 3 is a cross-sectional view taken along line AA in FIG. 1, and FIG. 3 is a cross-sectional view taken along line B-B in FIG.

Claims (1)

【特許請求の範囲】[Claims] 荒刃と仕上刃とがブローチの作動方向に直列配置された
ものにおいて、上記荒刃の刃幅を、仕上刃の刃幅より０
．０３〜０．０６ｍｍ小さい寸法に構成すると共に、上
記仕上刃には、側刃を構成したことを特徴とする溝加工
用ブローチ構造。In a case where a rough blade and a finishing blade are arranged in series in the operating direction of the broach, the blade width of the rough blade is set to 0 from the blade width of the finishing blade.
．． A broach structure for groove machining, characterized in that the broach size is smaller by 0.03 to 0.06 mm, and the finishing blade has a side blade.
JP1207885A 1985-01-25 1985-01-25 Structure of grooving broach Pending JPS61173811A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1207885A JPS61173811A (en) 1985-01-25 1985-01-25 Structure of grooving broach

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1207885A JPS61173811A (en) 1985-01-25 1985-01-25 Structure of grooving broach

Publications (1)

Publication Number Publication Date
JPS61173811A true JPS61173811A (en) 1986-08-05

Family

ID=11795545

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1207885A Pending JPS61173811A (en) 1985-01-25 1985-01-25 Structure of grooving broach

Country Status (1)

Country Link
JP (1) JPS61173811A (en)

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