JP3642531B2 - Surface brooch - Google Patents
Surface brooch Download PDFInfo
- Publication number
- JP3642531B2 JP3642531B2 JP23418093A JP23418093A JP3642531B2 JP 3642531 B2 JP3642531 B2 JP 3642531B2 JP 23418093 A JP23418093 A JP 23418093A JP 23418093 A JP23418093 A JP 23418093A JP 3642531 B2 JP3642531 B2 JP 3642531B2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- cutting
- broach
- guide portion
- present
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Description
【０００１】
【産業上の利用分野】
本発明は被削材の表面を成形加工するサーフェースブローチに関するものである。
【０００２】
【従来の技術】
従来のサーフェースブローチは二番刃付面が１ツの平面で構成しており、被削物を保持、固定することにより被削物を成形加工するものであった。
また、切刃にねじれを設け、切削性を良好にするという工夫がなされてきた。
【０００３】
【発明が解決しようとする問題点】
しかしながら、切削上、被削物が切刃に喰い込み勝手となるため、被削物を保持、固定しない場合、不安定な切削状態となり、所定の寸法精度や加工面粗さを得ることができなかった。また、被削物が不安定であるために切刃にチッピング等の異常摩耗を発生し易く、加工精度面のみならず工具の寿命にも問題があった。さらに、切削性を良好にするため切刃にねじれを設けたところですでに対処できない状況であった。なおさらに、このような不安定な切削状態では、所定の寸法精度が得られないばかりでなく、事故にもつながるという問題があった。
そこで、切削上、保持固定が必要不可欠となり、保持具の製作費用がかかっていた。また、保持の段取り工数が必要となり、かつ自動化が困難であるため、トータルの加工時間に問題があった。
【０００４】
【本発明の目的】
本発明は以上の問題を解決するためになされたものであり、被削物を保持、固定しなくとも良好な加工ができるサーフェースブローチを提供しようとするものである。
【０００５】
【課題を解決するための手段】
本発明は、被削物の表面を成形加工するサーフェースブローチにおいて、該ブローチの切刃の二番刃付面の後方に底面と略平行な案内部を設け、該案内部は該二番刃付面のヒール部と同高さであり、該二番刃付面と該案内部との間に凹状の溝を設けたことを特徴とするサーフェースブローチである。
【０００６】
【作用】
本発明を適用することにより、切刃が被削物に喰い込み勝手になることを抑制し、被削物を保持、固定しなくとも、良好な加工ができ、所定の寸法精度、加工面粗さを得ることができた。また、凹状溝は二番刃付面および案内部の加工を容易にかつ高精度にでき、かつ切削中の切削油の留りの役目を兼ね、より良好な切削状態が得られた。さらに切刃のねじれを有することにより、より切削性を良好にすることができることはいうまでもない。
以下、実施例により説明する。
【０００７】
【実施例】
図１、２は本発明の一実施例であるサーフェースブローチであって、図１は側面図、図２は切刃部の拡大図である。二番刃付面は後方に向って勾配を有し、ヒール部と案内部との高さは工具底面より同高さに設定されており、凹状溝を二番刃付面と案内部との間に設けたものある。また、図４は従来品の加工方法を示し、図５は本発明品の加工方法である。従来品は保持具が必要であるのに対し、本発明品は二番刃付面後方の案内部により、１刃当りの切込み量と二番刃付面の勾配を合した段差以上の喰い込みを防ぎ、被削物を押さえ、安定した切削状態が得られる。
【０００８】
これにより、被削物を治具の支持面とブローチとの間に置き、ブローチをスライドすることにより所定の寸法精度、加工面粗さに切削がなされる。さらに、案内部のバニッシング効果により被削物の加工面粗さが飛躍的に向上した。
なおさらに、自動化も容易となり、段取り工数も少なくてすみ、時間当りの加工数が大幅に増えた。
【０００９】
【効果】
以上のように本発明によれば、被削物を保持、固定しなくとも良好な加工ができるようになったのである。また、被削物の保持、固定を必要としないため、保持具の製作費等のコスト低減、および工数の低減が大幅に計れるようになったのである。
【図面の簡単な説明】
【図１】図１は本発明の一実施例であり、その側面図である。
【図２】図２は図１の刃部拡大図である。
【図３】図３は従来品の一例であり、その刃部拡大図である。
【図４】図４は従来品の加工方法を示す説明図である。
【図５】図５は本発明品の加工方法を示す説明図である。
【符号の説明】
１ 工具本体
２ 底面
３ 切刃
４ 二番刃付面
５ 案内部
６ 凹状溝
７ ヒール部
８ 被削物
９ 保持具
１０ 支持面
１１ 治具
ａ １刃当りの切削量
ｂ 最大喰い込み量[0001]
[Industrial application fields]
The present invention relates to a surface broach for forming a surface of a work material.
[0002]
[Prior art]
A conventional surface broach has a flat surface with a second blade and is formed by holding and fixing the work piece.
Further, a device has been devised in which the cutting blade is twisted to improve the cutting performance.
[0003]
[Problems to be solved by the invention]
However, since the work will bite into the cutting edge for cutting, if the work is not held or fixed, it will be in an unstable cutting state, and the specified dimensional accuracy and surface roughness can be obtained. There wasn't. In addition, since the workpiece is unstable, abnormal wear such as chipping is likely to occur on the cutting edge, and there is a problem not only in machining accuracy but also in tool life. Furthermore, in order to improve the machinability, it was already impossible to cope with the case where the cutting blade was twisted. Furthermore, in such an unstable cutting state, there is a problem that not only a predetermined dimensional accuracy cannot be obtained but also an accident is caused.
Therefore, holding and fixing are indispensable for cutting, and the production cost of the holding tool is high. In addition, the holding man-hours are required, and automation is difficult, so there is a problem in the total processing time.
[0004]
[Object of the present invention]
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a surface broach that can perform good processing without holding and fixing a workpiece.
[0005]
[Means for Solving the Problems]
The present invention provides a surface broach for forming the surface of a workpiece, wherein a guide portion substantially parallel to the bottom surface is provided behind the second blade-attached surface of the cutting blade of the broach , and the guide portion is the second blade. A surface broach having the same height as the heel portion of the abutting surface and having a concave groove between the surface with the second blade and the guide portion .
[0006]
[Action]
By applying the present invention, it is possible to suppress the cutting edge from biting into the work piece, and to perform good machining without holding or fixing the work piece. I was able to get it. Further, the concave groove can easily and highly accurately process the surface with the second blade and the guide portion, and also serves as a retention of cutting oil during cutting, and a better cutting state is obtained. Furthermore, it goes without saying that the cutting performance can be improved by having the twist of the cutting edge.
Examples will be described below.
[0007]
【Example】
1 and 2 are surface broaches according to an embodiment of the present invention, FIG. 1 is a side view, and FIG. 2 is an enlarged view of a cutting edge portion. The surface with the second blade has a slope toward the rear, and the height of the heel portion and the guide portion is set to the same height as the bottom surface of the tool, and the concave groove is formed between the surface with the second blade and the guide portion. There is something in between. FIG. 4 shows a processing method for a conventional product, and FIG. 5 shows a processing method for the product of the present invention. While the conventional product requires a holding tool, the product of the present invention bites more than the level difference between the cutting amount per blade and the gradient of the surface with the second blade by the guide part behind the surface with the second blade. Prevents the workpiece from being pressed and a stable cutting state is obtained.
[0008]
As a result, the workpiece is placed between the support surface of the jig and the broach, and the broach is slid to cut to a predetermined dimensional accuracy and surface roughness. Furthermore, the machined surface roughness of the workpiece has been dramatically improved by the burnishing effect of the guide portion.
Furthermore, automation has become easier, less setup work has been required, and the number of processes per hour has increased significantly.
[0009]
【effect】
As described above, according to the present invention, it is possible to perform good processing without holding and fixing a work piece. In addition, since it is not necessary to hold and fix the work, it is possible to greatly reduce the cost of manufacturing the holding tool and the number of man-hours.
[Brief description of the drawings]
FIG. 1 is a side view of an embodiment of the present invention.
FIG. 2 is an enlarged view of the blade portion of FIG. 1;
FIG. 3 is an example of a conventional product and is an enlarged view of a blade portion thereof.
FIG. 4 is an explanatory view showing a conventional processing method.
FIG. 5 is an explanatory view showing a processing method of the product of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tool body 2
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23418093A JP3642531B2 (en) | 1993-08-26 | 1993-08-26 | Surface brooch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23418093A JP3642531B2 (en) | 1993-08-26 | 1993-08-26 | Surface brooch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0760536A JPH0760536A (en) | 1995-03-07 |
| JP3642531B2 true JP3642531B2 (en) | 2005-04-27 |
Family
ID=16966932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23418093A Expired - Fee Related JP3642531B2 (en) | 1993-08-26 | 1993-08-26 | Surface brooch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3642531B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070193030A1 (en) * | 2006-02-17 | 2007-08-23 | Gm Global Technology Operations, Inc. | Net formed gear member and method of manufacture |
| SE530298C2 (en) * | 2006-09-12 | 2008-04-22 | Sandvik Intellectual Property | Cutting tools and inserts where the cutting edge of the cutting edge has a partially concave shape |
| JP5444778B2 (en) * | 2009-03-19 | 2014-03-19 | トヨタ自動車株式会社 | Broaching tool and processing method using broaching tool |
-
1993
- 1993-08-26 JP JP23418093A patent/JP3642531B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0760536A (en) | 1995-03-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2563817B2 (en) | METHOD AND DEVICE FOR MANUFACTURING TRANSVERSE ELEMENT FOR TRANSMISSION BELT | |
| US9038512B2 (en) | Method for manufacturing bandsaw blade, and bandsaw blade | |
| JP3653793B2 (en) | Press working mold and press working method | |
| JP3642531B2 (en) | Surface brooch | |
| JPH09131610A (en) | Thin thickness rib machining method | |
| JPS60191623A (en) | Method of deburring hot forged product | |
| GB2205513A (en) | Manufacture of form cutting tool tip | |
| SU1166901A1 (en) | Cutting tool | |
| JP2000288816A (en) | Manufacture of curved arc face | |
| JPS63149072A (en) | Cutting out method for plate | |
| JP3545070B2 (en) | Roughing method for mold material | |
| JPS58177250A (en) | Rough and middle finishing processing method for circular arc and taper in simultaneous uniaxial nc machine tool | |
| JP2002263902A (en) | Cutting method | |
| JP2983050B2 (en) | Processing long workpieces | |
| JPH0335911A (en) | Machining method for scroll shape | |
| JPS61219535A (en) | Manufacture of blanking die | |
| SU1144776A1 (en) | Slotted cutting tool | |
| SU1673400A1 (en) | Method for sharpening blades | |
| JPH0366518A (en) | Working method for spline shaft | |
| JPH0422891Y2 (en) | ||
| SU1685689A1 (en) | Method for regrinding cutting tool | |
| RU2104825C1 (en) | Device for machining of sheet blanks | |
| SU1199453A1 (en) | Method of working cylindrical parts | |
| JP2522079Y2 (en) | Optical components | |
| JP3986238B2 (en) | Split mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040216 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040224 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040420 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20050124 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20050124 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080204 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090204 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100204 Year of fee payment: 5 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100204 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100204 Year of fee payment: 5 |
|
| R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
| R370 | Written measure of declining of transfer procedure |
Free format text: JAPANESE INTERMEDIATE CODE: R370 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100204 Year of fee payment: 5 |
|
| LAPS | Cancellation because of no payment of annual fees |