JP2780018B2 - Circular saw - Google Patents
Circular sawInfo
- Publication number
- JP2780018B2 JP2780018B2 JP7308426A JP30842695A JP2780018B2 JP 2780018 B2 JP2780018 B2 JP 2780018B2 JP 7308426 A JP7308426 A JP 7308426A JP 30842695 A JP30842695 A JP 30842695A JP 2780018 B2 JP2780018 B2 JP 2780018B2
- Authority
- JP
- Japan
- Prior art keywords
- circular saw
- core material
- side plates
- present
- peripheral portion
- 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 - Lifetime
Links
- 239000011162 core material Substances 0.000 claims description 32
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 229910003460 diamond Inorganic materials 0.000 claims description 7
- 239000010432 diamond Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 description 5
- 239000012467 final product Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/025—Details of saw blade body
- B23D61/026—Composite body, e.g. laminated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【発明の属する技術分野】本発明は、周面に超硬合金、
ダイヤモンド等からなるチップを設けた丸鋸に関するも
のである。TECHNICAL FIELD The present invention relates to a cemented carbide,
The present invention relates to a circular saw provided with a tip made of diamond or the like.
【０００２】[0002]
【従来の技術】従来より、金属、コンクリート、石材、
プラスチック、木材その他の材料からなる被切削物を切
断するために周面に超硬合金、ダイヤモンド等からなる
チップを設けた丸鋸が広く使用されている。2. Description of the Related Art Conventionally, metal, concrete, stone,
2. Description of the Related Art A circular saw provided with a chip made of a cemented carbide, diamond, or the like on a peripheral surface thereof is widely used for cutting an object to be cut made of plastic, wood, or another material.
【０００３】[0003]
【発明が解決しようとする課題】ところで、この種の丸
鋸においては、従来より、丸鋸の刃先が被切削物や空気
を切る際に発生する音や丸鋸の側面と被切削物が接触す
る際に発生する音が、丸鋸本体に伝わり、大きな騒音を
発生するという問題点を有していた。また、丸鋸により
被切削物を切断する場合、切削抵抗や遠心力より、丸鋸
の刃先に振れが生じ、切断精度が低下するという問題点
を有していた。By the way, in this kind of circular saw, the sound generated when the cutting edge of the circular saw cuts the workpiece or the air, or the side face of the circular saw comes into contact with the workpiece. The problem is that the sound generated at the time of transmission is transmitted to the circular saw main body and generates a loud noise. In addition, when cutting an object to be cut by a circular saw, there is a problem in that the cutting edge of the circular saw oscillates due to cutting resistance and centrifugal force, and cutting accuracy is reduced.
【０００４】上記の問題点のうち、丸鋸の刃先に振れが
生じることを防止するために、丸鋸本体の中心部に向け
てハンマーリング処理やローラー処理を施すことにより
丸鋸本体中心部の靱性を向上する方法や、丸鋸本体に熱
処理を施すことにより環状の緩衝部分を形成する方法が
採用されている。しかしながら、これらの方法も、前者
の場合は、効果の持続性に難点があり、また、後者の場
合は、丸鋸本体の硬度が低下するという問題点を有する
ことから、丸鋸の刃先に振れが生じることを防止するた
めの抜本的な対策が要望されていた。[0004] Among the above-mentioned problems, in order to prevent the run-out of the blade edge of the circular saw, a hammering process or a roller process is performed toward the center portion of the circular saw body, so that the center portion of the circular saw body is processed. A method of improving toughness and a method of forming an annular buffer portion by subjecting a circular saw body to heat treatment are employed. However, these methods also have a problem in that the former has a problem in the persistence of the effect, and the latter has a problem that the hardness of the circular saw body is reduced. There has been a demand for a drastic measure to prevent the occurrence of the problem.
【０００５】本発明は、上記従来の丸鋸の有する問題点
を解決し、消音機能を有するとともに、腰入れ強化を図
ることにより丸鋸の刃先に振れが発生するのを防止でき
る丸鋸を提供することを目的とする。The present invention solves the above-mentioned problems of the conventional circular saw, and provides a circular saw which has a noise reduction function and can prevent the run-out of the cutting edge of the circular saw by strengthening the waist. The purpose is to do.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明の丸鋸は、周面に超硬合金、ダイヤモンド等
からなるチップを設けた丸鋸において、丸鋸本体を、中
心に小孔を形成した鋼板からなる２枚の側板と、該側板
の間に介在した、中心に前記側板に形成した小孔より大
径の開口部を形成した、芯材とで構成するとともに、前
記２枚の側板を芯材が存在する外周部分は芯材を介し
て、芯材が存在しない内周部分は直接、スポット溶接に
より溶接した後、側板表面を研削して略均一な厚みに形
成して構成したことを特徴とする。In order to achieve the above object, a circular saw according to the present invention comprises a circular saw having a chip made of a cemented carbide, diamond or the like on a peripheral surface thereof. The two side plates made of a steel plate having holes formed therein, and a core material interposed between the side plates and having an opening formed at the center with a diameter larger than the small hole formed in the side plates, The outer peripheral part where the core material exists is formed through the core material, the inner peripheral part where the core material does not exist is directly welded by spot welding, and the side plate surface is ground to form a substantially uniform thickness. It is characterized by having done.
【０００７】このようにして得た丸鋸は、丸鋸本体を、
丸鋸本体を、中心に小孔を形成した鋼板からなる２枚の
側板と、該側板の間に介在した、中心に前記側板に形成
した小孔より大径の開口部を形成した、芯材とで構成す
ることにより、丸鋸の刃先が被切削物や空気を切る際に
発生する音や丸鋸の側面と被切削物が接触する際に発生
する音が、丸鋸本体に伝わって、大きな騒音を発生する
ことなく吸収される。また、芯材の中心に側板に形成し
た小孔より大径の開口部を形成し、２枚の側板を芯材が
存在する外周部分は芯材を介して、芯材が存在しない内
周部分は直接、スポット溶接により溶接した後、側板表
面を研削して略均一な厚みに形成することにより、丸鋸
本体中心部の剛性を向上して腰入れ強化を図ることがで
き、丸鋸の刃先に振れが発生することを防止することが
できる。[0007] The circular saw thus obtained comprises a circular saw body,
Circular saw body, two side plates made of a steel plate having a small hole formed in the center, and a core material formed between the side plates and having an opening with a diameter larger than the small hole formed in the side plate in the center. The sound generated when the cutting edge of the circular saw cuts the workpiece or air and the sound generated when the side of the circular saw comes into contact with the workpiece are transmitted to the circular saw body, Absorbed without generating noise. Also, an opening having a larger diameter than the small hole formed in the side plate is formed at the center of the core material, and the outer peripheral portion where the core material exists is interposed between the two side plates via the core material, and the inner peripheral portion where the core material does not exist Is directly welded by spot welding, and the side plate surface is ground to form a substantially uniform thickness, thereby improving the rigidity of the central part of the circular saw main body and strengthening the waist. Can be prevented from occurring.
【０００８】この場合において、芯材が存在しない内周
部分のスポット溶接の密度を、芯材が存在する外周部分
のスポット溶接の密度よりも大きくすることにより、丸
鋸本体中心部の剛性をより一層向上して腰入れ強化を図
ることができる。In this case, the rigidity of the central portion of the circular saw main body is further increased by making the spot welding density of the inner peripheral portion where the core material does not exist higher than the spot welding density of the outer peripheral portion where the core material exists. It is possible to further improve and strengthen the waist.
【０００９】[0009]
【発明の実施の形態】以下、本発明の丸鋸の実施の形態
を図面に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a circular saw according to the present invention will be described below with reference to the drawings.
【００１０】図１に示すように、丸鋸本体１０を、鋼板
からなる２枚の側板１ａ，１ｂと、側板１ａ，１ｂの間
に介在した中心に開口部２１を形成した芯材２とで構成
するとともに、図２及び図３（ａ）に示すように、２枚
の側板１ａ，１ｂを芯材２が存在する部分は芯材２を介
して、芯材２が存在しない部分、すなわち、芯材２の開
口部２１は直接、スポット溶接３により溶接（ｔ11＝ｔ
1a＋ｔ1b＋ｔ2、ｔ12＝ｔ1a＋ｔ1b、ｔ11＞ｔ12）した
後、図３（ｂ）に示すように、側板１ａ，１ｂの表面を
研削して略均一な厚み（ｔ21＝ｔ22）に形成して構成す
る。As shown in FIG. 1, a circular saw main body 10 is composed of two side plates 1a and 1b made of a steel plate and a core 2 having an opening 21 formed at the center between the side plates 1a and 1b. As shown in FIGS. 2 and 3 (a), the two side plates 1a and 1b are connected to the portion where the core material 2 exists through the core material 2 and the portion where the core material 2 does not exist, that is, The opening 21 of the core member 2 is directly welded by spot welding 3 (t11 = t
After 1a + t1b + t2, t12 = t1a + t1b, t11> t12), as shown in FIG. 3B, the surfaces of the side plates 1a, 1b are ground to form a substantially uniform thickness (t21 = t22).
【００１１】これにより、丸鋸本体１０を、鋼板からな
る２枚の側板１ａ，１ｂと、側板１ａ，１ｂの間に介在
した芯材２とで構成しながら、丸鋸本体１０の中心部の
側板１ａ，１ｂの厚みを、周辺部より厚く構成すること
ができ、丸鋸本体１０の中心部の剛性を向上して腰入れ
強化を図ることができる。As a result, the circular saw main body 10 is constituted by the two side plates 1a and 1b made of steel plates and the core member 2 interposed between the side plates 1a and 1b, and the circular saw main body 10 is formed at the center of the circular saw main body 10. The thickness of the side plates 1a and 1b can be configured to be thicker than the peripheral portion, and the rigidity of the central portion of the circular saw main body 10 can be improved to strengthen the waist.
【００１２】この場合において、通常、２枚の側板１
ａ，１ｂには、熱処理を施すことにより硬度を高めた鋼
板を、芯材２には、側板と異なる材質からなる薄板、例
えば、側板１ａ，１ｂよりも硬度の低い鋼板や銅板を使
用する。また、２枚の側板１ａ，１ｂの中心には、丸鋸
を鋸盤に固定するための小孔１１ａ，１１ｂを予め形成
しておくことが望ましい。また、芯材２の中心に形成す
る開口部２１の大きさは、通常、芯材２、すなわち、丸
鋸本体１０の直径の１／４〜３／４、さらに好ましくは
１／３〜２／３程度に設定する。また、芯材２が存在し
ない部分のスポット溶接３の密度を、芯材２が存在する
部分のスポット溶接３の密度よりも大きくするととも
に、芯材２が存在しない部分の１つのスポット溶接３の
溶接強度を、芯材２が存在する部分の１つのスポット溶
接３の溶接強度よりも大きくなるように溶接を行うこと
が望ましい。In this case, usually, two side plates 1
A steel plate whose hardness is increased by heat treatment is used for a and 1b, and a thin plate made of a material different from that of the side plate, for example, a steel plate or a copper plate having a lower hardness than the side plates 1a and 1b is used for the core material 2. It is desirable that small holes 11a and 11b for fixing the circular saw to the sawing machine be formed in advance at the center of the two side plates 1a and 1b. The size of the opening 21 formed at the center of the core material 2 is usually １ ／ to の, more preferably １ ／ to 、 of the diameter of the core material 2, that is, the circular saw body 10. Set to about 3. Further, the density of the spot welds 3 in the portion where the core material 2 does not exist is set to be higher than the density of the spot welds 3 in the portion where the core material 2 exists, and the density of one spot weld 3 in the portion where the core material 2 does not exist. It is desirable to perform welding so that the welding strength is higher than the welding strength of one spot weld 3 in the portion where the core material 2 is present.
【００１３】側板１ａ，１ｂの表面を研削して略均一な
厚みに形成した丸鋸本体１０は、図４に示すように、周
面に超硬合金のチップ４ａ（図４（ａ））やダイヤモン
ドチップ４ｂ（図４（ｂ））を設けることにより最終製
品（チップソー（図４（ａ））、ダイヤモンドソー（図
４（ｂ）））にする。As shown in FIG. 4, the circular saw body 10 formed by grinding the surfaces of the side plates 1a and 1b to have a substantially uniform thickness has a cemented carbide chip 4a (FIG. 4A) on the peripheral surface. By providing the diamond tip 4b (FIG. 4B), a final product (tip saw (FIG. 4A), diamond saw (FIG. 4B)) is obtained.
【００１４】[0014]
【実施例】次に、本発明の丸鋸の１実施例を示す。 側板：焼き入れ鋼板 直径４００ｍｍ 厚み１．６ｍｍ 芯材：鋼板 直径４００ｍｍ 厚み０．３ｍｍ 開口部の直径２００ｍｍ 丸鋸本体：直径４００ｍｍ 厚み３．０ｍｍ（研削後）Next, one embodiment of the circular saw of the present invention will be described. Side plate: Hardened steel plate Diameter 400mm Thickness 1.6mm Core material: Steel plate Diameter 400mm Thickness 0.3mm Opening diameter 200mm Circular saw body: Diameter 400mm Thickness 3.0mm (after grinding)
【００１５】[0015]
【発明の効果】請求項１記載の発明によれば、丸鋸の刃
先が被切削物や空気を切る際に発生する音や丸鋸の側面
と被切削物が接触する際に発生する音が、丸鋸本体に伝
わって、大きな騒音を発生することなく吸収されるた
め、鋸盤を使用する作業場の作業環境を向上することが
できる。また、丸鋸本体中心部の剛性が向上するため、
丸鋸の腰入れ強化を図ることができ、丸鋸の刃先に振れ
が発生することを防止し、切断精度を向上することがで
きる。According to the first aspect of the present invention, the sound generated when the cutting edge of the circular saw cuts the workpiece or the air or the sound generated when the side of the circular saw contacts the workpiece. Since it is transmitted to the circular saw main body and absorbed without generating large noise, the working environment of the workplace using the sawing machine can be improved. In addition, since the rigidity of the central part of the circular saw body is improved,
It is possible to enhance the penetration of the circular saw, prevent runout from occurring at the cutting edge of the circular saw, and improve cutting accuracy.
【００１６】請求項２記載の発明によれば、丸鋸本体中
心部の剛性がより一層向上するため、丸鋸の腰入れ強化
を図ることができる。According to the second aspect of the present invention, the rigidity of the central portion of the circular saw main body is further improved, so that the circular saw can be strengthened.
【図１】本発明の丸鋸の側板及び芯材の説明図である。FIG. 1 is an explanatory view of a side plate and a core material of a circular saw according to the present invention.
【図２】スポット溶接を行った丸鋸本体を示し、（ａ）
は平面図、（ｂ）は断面図である。FIG. 2 shows a circular saw body subjected to spot welding, and (a)
Is a plan view, and (b) is a sectional view.
【図３】丸鋸本体を示し、（ａ）は研削前の状態、
（ｂ）は研削後の状態を示す断面図である。FIG. 3 shows a circular saw main body, (a) shows a state before grinding,
(B) is a sectional view showing a state after grinding.
【図４】丸鋸（最終製品）を示し、（ａ）はチップソ
ー、（ｂ）ダイヤモンドソーを示す。FIG. 4 shows a circular saw (final product), wherein (a) shows a tip saw and (b) a diamond saw.
１ａ 側板 １ｂ 側板 ２ 芯材 ２１ 開口部 ３ スポット溶接 1a side plate 1b side plate 2 core material 21 opening 3 spot welding
Claims (2)
るチップを設けた丸鋸において、丸鋸本体を、中心に小
孔を形成した鋼板からなる２枚の側板と、該側板の間に
介在した、中心に前記側板に形成した小孔より大径の開
口部を形成した、芯材とで構成するとともに、前記２枚
の側板を芯材が存在する外周部分は芯材を介して、芯材
が存在しない内周部分は直接、スポット溶接により溶接
した後、側板表面を研削して略均一な厚みに形成して構
成したことを特徴とする丸鋸。To 1. A peripheral surface of cemented carbide, in a circular saw having a chip made of diamond or the like, the circular saw main body, small mainly
Two side plates made of a steel plate having a hole, and an opening interposed between the side plates and having a diameter larger than a small hole formed in the side plate at the center.
The two side plates were welded by spot welding to the two side plates while the outer peripheral portion where the core material was present was through the core material, and the inner peripheral portion where the core material was not present was directly formed. A circular saw characterized in that the side plate surface is ground to form a substantially uniform thickness.
接の密度を、芯材が存在する外周部分のスポット溶接の
密度よりも大きくしたことを特徴とする請求項１記載の
丸鋸。2. The circular saw according to claim 1, wherein the density of spot welding at an inner peripheral portion where no core material is present is made higher than the density of spot welding at an outer peripheral portion where the core material is present.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7308426A JP2780018B2 (en) | 1995-10-31 | 1995-10-31 | Circular saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7308426A JP2780018B2 (en) | 1995-10-31 | 1995-10-31 | Circular saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09123018A JPH09123018A (en) | 1997-05-13 |
| JP2780018B2 true JP2780018B2 (en) | 1998-07-23 |
Family
ID=17980916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7308426A Expired - Lifetime JP2780018B2 (en) | 1995-10-31 | 1995-10-31 | Circular saw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2780018B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7017465B2 (en) * | 2002-07-29 | 2006-03-28 | L.S. Starrett Company | Cutting tool with grooved cutting edge |
| JP6882828B2 (en) * | 2016-08-31 | 2021-06-02 | 株式会社ディスコ | Metal saw |
| JP7007074B2 (en) * | 2020-10-30 | 2022-01-24 | 株式会社ディスコ | Metal saw |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5217277A (en) * | 1975-07-30 | 1977-02-09 | Toshiba Mach Co Ltd | Low-noise cutter |
| JPS5244075A (en) * | 1975-10-04 | 1977-04-06 | Babcock Hitachi Kk | Hot waste gas burning method |
| JPS6040246A (en) * | 1983-08-15 | 1985-03-02 | 川崎製鉄株式会社 | Composite material for tool having excellent vibration-damping property |
| JPS60172660U (en) * | 1984-04-19 | 1985-11-15 | 三和研磨工業株式会社 | diamond blade saw |
| JP2507667B2 (en) * | 1990-05-02 | 1996-06-12 | 三菱プレシジョン株式会社 | Proximity fuze control device |
| JP2509290Y2 (en) * | 1991-10-07 | 1996-08-28 | 兼房株式会社 | Plate-shaped tool body consisting of two-layer structure |
| JPH0624824U (en) * | 1992-08-28 | 1994-04-05 | オタリ株式会社 | Circular saw |
| JPH0732965B2 (en) * | 1992-12-29 | 1995-04-12 | 天龍製鋸株式会社 | Rotating saw manufacturing method |
| JP2519166B2 (en) * | 1993-04-26 | 1996-07-31 | ジャンプ工業株式会社 | Substrate for cutter |
-
1995
- 1995-10-31 JP JP7308426A patent/JP2780018B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09123018A (en) | 1997-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS59166417A (en) | Teeth of saw and manufacture thereof | |
| WO1985001008A1 (en) | Bandsaw blades | |
| JP2780018B2 (en) | Circular saw | |
| JPS61172629A (en) | Tool for punching | |
| JPS6249857B2 (en) | ||
| JP2005246818A (en) | Method and apparatus for boring brittle material | |
| JPH08118104A (en) | Tool | |
| JP2000035082A (en) | Damping plate | |
| JPS63212401A (en) | Turning method | |
| JPS578028A (en) | Manufacturing of saw blade | |
| JPS6138896A (en) | Shearing machining device for fiber reinforced resin material | |
| CN2215963Y (en) | Saw blade for cutting machine | |
| JPS6125939Y2 (en) | ||
| JP2001212765A (en) | Blade for dry process | |
| JPH05237680A (en) | Method for machining slit by laser beam machine | |
| Nerubai | Ultrasonic Milling of Difficultly-Machinable Materials on Machines With a Numeric Control Program | |
| JPH09239562A (en) | Electrode chip dressing cutter | |
| JP2571748B2 (en) | Rotary die manufacturing method | |
| JPS6099517A (en) | Cermet saw | |
| JP2000246526A (en) | Hole saw | |
| US550297A (en) | Manufacture of band-saw plates | |
| JPH04117712U (en) | coreless drill | |
| JPH07308915A (en) | Silencing cutter | |
| JP2003019523A (en) | Upper die for press | |
| JPH11277333A (en) | Reamer and hole finishing method using it |