JPH0390308A - Cutter blade - Google Patents
Cutter bladeInfo
- Publication number
- JPH0390308A JPH0390308A JP22697989A JP22697989A JPH0390308A JP H0390308 A JPH0390308 A JP H0390308A JP 22697989 A JP22697989 A JP 22697989A JP 22697989 A JP22697989 A JP 22697989A JP H0390308 A JPH0390308 A JP H0390308A
- Authority
- JP
- Japan
- Prior art keywords
- rotary board
- hollow part
- air
- cutting
- outer periphery
- 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
Links
- 238000005520 cutting process Methods 0.000 claims abstract description 49
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 6
- 239000010432 diamond Substances 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims description 22
- 230000002093 peripheral effect Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract 1
- 238000009825 accumulation Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- -1 tile Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/29—Details; Component parts; Accessories
- B27B5/30—Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
- B27B5/32—Devices for securing circular saw blades to the saw spindle
-
- 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
- B23D59/00—Accessories specially designed for sawing machines or sawing devices
- B23D59/02—Devices for lubricating or cooling circular saw blades
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/06—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces internally
- B24B5/10—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces internally involving a horizontal tool spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/12—Cut-off wheels
- B24D5/123—Cut-off wheels having different cutting segments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/12—Saw-blades or saw-discs specially adapted for working stone
- B28D1/121—Circular saw blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、コンクリート、アスファルト、レンガ、タ
イルあるいは石材等を切断するカッターのブレードに関
する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a cutter blade for cutting concrete, asphalt, brick, tile, stone, etc.
上記のような被削材を対象とするカッターに使用される
ブレードとしては、従来、金属製のディスク状の回転基
板の外周にダイヤモンドの焼結体から戒る切削チップを
ろう付けしたものが用いられており、回転基板は切削チ
ップと同等かあるいは小さい厚みをもって、且つ、全体
に亘って一様の厚みで形成されたものが知られている。Blades used in cutters for the above-mentioned work materials have conventionally been made by brazing a cutting tip made of sintered diamond onto the outer periphery of a rotating metal disc-shaped substrate. It is known that the rotating substrate has a thickness equal to or smaller than that of the cutting tip, and is formed to have a uniform thickness throughout.
ところで、上述のような従来のブレードでは、第5図に
示すように、回転基板42と切削溝Gの側面との間の空
隙、すなわち切屑排出空間の容積が切WMの生成量に比
べて小さいため、切屑Mは回転基板42と切削チップ8
の接続部位に滞留して、接続部位を挾るように作用する
。また、切削に伴って切削チップ8も摩耗し、この摩耗
塵が切屑Mに混入するため、切削チップ8に比べて軟質
の素材で形成される回転基板42のチップ付は根部分は
摩耗が激しく、決られて細くなり、ブレードの早期損耗
を来していた。また、摩擦熱の増大により切削チップ8
の熱劣化を招来し、切削効率の低下を来すという問題も
併存していた。By the way, in the conventional blade as described above, as shown in FIG. 5, the volume of the gap between the rotating substrate 42 and the side surface of the cutting groove G, that is, the chip discharge space, is small compared to the amount of cutting WM produced. Therefore, the chips M are separated from the rotating substrate 42 and the cutting tip 8.
It stays at the connection site and acts to pinch the connection site. In addition, the cutting tip 8 also wears out with cutting, and this abrasion dust mixes into the chips M. Therefore, the root part of the rotary board 42, which is made of a softer material than the cutting tip 8, is subject to severe wear. , which resulted in a constant thinning and premature wear of the blade. In addition, due to the increase in frictional heat, the cutting tip 8
There was also the problem that this caused thermal deterioration of the material, resulting in a decrease in cutting efficiency.
回転基板の厚みを小さくして回転基板と切削溝の側面と
の間の空隙容積を大きくすることによって、切屑Mの滞
留による不具合をある程度回避し得るのであるが、切削
に必要な回転基板の基本的な構造強度を維持する観点か
ら、その薄肉化には限度があり、このため従来のもので
は依然として上述のような問題を生じていたものである
。By reducing the thickness of the rotating substrate and increasing the void volume between the rotating substrate and the side surface of the cutting groove, problems caused by the accumulation of chips M can be avoided to some extent, but the basics of the rotating substrate necessary for cutting can be avoided to some extent. From the viewpoint of maintaining structural strength, there is a limit to how thin the wall can be made, and for this reason, conventional products still suffer from the above-mentioned problems.
そこで、この発明は回転基板の基本的な構造強度を維持
しながら切削チップの付は根部分における摩耗を回避で
き、よってブレードの長寿命化並びに切削効率の向上を
図れるカッターブレードの提供をその目的とする。Therefore, the purpose of this invention is to provide a cutter blade that can avoid wear at the root portion of the cutting tip while maintaining the basic structural strength of the rotating substrate, thereby extending the life of the blade and improving cutting efficiency. shall be.
この発明は、上記課題を解決するために、中央部に駆動
軸の取付孔を有するディスク状の回転基板と、この回転
基板の外周に設けられるダイヤモンド焼結体の切削チッ
プとから成るカッターブレードにおいて、前記回転基板
の外周側端部に切屑を排出するための案内凹部が形成さ
れる構造としたものである。In order to solve the above-mentioned problems, the present invention provides a cutter blade comprising a disk-shaped rotating base plate having a drive shaft mounting hole in the center, and a cutting tip made of a diamond sintered body provided on the outer periphery of the rotating base plate. , a guide recess for discharging chips is formed at the outer peripheral end of the rotary base plate.
〔作 用〕
この発明によれば、ブレードの回転に伴って切削チップ
部位から生成される切屑は回転基板の外周側端部に形成
された案内凹部に収容され、ブレードの回転力で案内凹
部を移動してブレードの後方側から排出される。[Function] According to the present invention, chips generated from the cutting tip portion as the blade rotates are accommodated in the guide recess formed at the outer peripheral end of the rotary substrate, and the guide recess is moved by the rotational force of the blade. It moves and is ejected from the rear side of the blade.
第1図及び第2図はこの発明の一実施例を示す。 1 and 2 show an embodiment of the invention.
なお、従来と同一部分は同一符号で示す。In addition, the same parts as the conventional one are indicated by the same reference numerals.
ディスク状の回転基板2の中央部には、ハンドカッター
等の駆動軸に対する取付孔4が形成されており、外周に
は切屑を逃がすための逃がし溝6が半径方向への深さを
もって等間隔に形成されている。各逃がし溝6の形成に
よって分断状態を呈する外周の各端面にはダイヤモンド
焼結体から成る切削チップ8が固定されている。A mounting hole 4 for a drive shaft of a hand cutter or the like is formed in the center of the disk-shaped rotating base plate 2, and relief grooves 6 are formed on the outer periphery at equal intervals with a depth in the radial direction to release chips. It is formed. A cutting tip 8 made of a diamond sintered body is fixed to each end face of the outer periphery which is divided by the formation of each escape groove 6.
回転基板2の外周側寄りには半径方向に一定の幅を有す
る環状の空洞部10が形成されており、回転基板2の両
側面における空洞部10の内周側には、空気を取り入れ
るための吸気口12が半径方向の対向位置をもって等間
隔に複数形成されている0表面側の各吸気口12と裏面
側の各吸気口12とは位置を若干ずらされて形成されて
いる。An annular cavity 10 having a constant width in the radial direction is formed near the outer circumferential side of the rotating substrate 2, and an annular cavity 10 for taking in air is formed on the inner circumferential side of the cavity 10 on both sides of the rotating substrate 2. A plurality of air intake ports 12 are formed at equal intervals with opposing positions in the radial direction.The air intake ports 12 on the front surface side and the air intake ports 12 on the back surface side are formed with positions slightly shifted from each other.
各吸気口12は、回転基板2の回転方向である矢印R方
向に臨む状態に空洞部10に連通して形成されている。Each intake port 12 is formed so as to communicate with the cavity 10 so as to face in the direction of arrow R, which is the direction of rotation of the rotary substrate 2 .
また、各逃がし溝6に対する空洞部10の対応部分には
噴出口14が開口されている。Further, a spout 14 is opened in a corresponding portion of the cavity 10 to each relief groove 6.
従って、各吸気口12と各噴出口14とは空洞部lOを
介して連通状態となっている。Therefore, each intake port 12 and each jet port 14 are in communication via the cavity lO.
回転基板2は、2枚の薄肉の成形[16,1Bを重ね合
わせて形成されており、空洞部10は、各成形板16.
18にそれぞれ対向して形成された環状の***部20.
22間の閉塞空間としてなる。なお、***部20.22
間の暢nは切削チップ8の幅Wより小さく設定される。The rotating substrate 2 is formed by overlapping two thin molded plates 16, 1B, and the cavity 10 is formed by overlapping each molded plate 16.
Annular raised portions 20 .
It becomes a closed space between 22. In addition, the raised portion 20.22
The width n between them is set smaller than the width W of the cutting tip 8.
この例では、各成形板16.18には板厚0.5閣のス
テンレスimiを使用し、***部20.22間の暢nを
1.4鵬、切削チップ8の暢Wを2.2−とした。In this example, each molded plate 16.18 is made of stainless steel with a plate thickness of 0.5 mm, the width between the protrusions 20.22 is 1.4, and the width of the cutting tip 8 is 2.2. −.
回転基Fi2の外周側端部には表裏面側にそれぞれ、切
屑Mを排出するための案内凹部24,26が形成されて
いる。各案内凹部24,26は、各成形板16.18の
***部20.22の形成によって生じるものである。各
案内凹部24,26間の厚み【は、切削チップ8の幅W
との関係において、各案内凹部24,26で切屑Mの滞
留を回避し得るとともに切削チップ8の良好な固定強度
が得られる範囲で適正に決定されるものである。そして
、このような外周側端部の薄肉化による回転基板2の構
造強度の低下は***部20,22によって補償されるも
のである。この例では特に成形板の合わせ構造としてい
るので、回転基板2の良好な構造強度を維持しながら切
削チップ8の幅Wに対する案内凹部24,26間の厚み
tの薄肉度を大きくできる。また、カッターブレードで
は芯振れを抑えるために回転基板2の平坦精度が要求さ
れるが、この例のように2枚合わせ構造の場合には単板
構造に比べて晴度出しが容易で、ブレードの大径化も容
易となる。Guide recesses 24 and 26 for discharging chips M are formed on the front and back sides of the outer circumferential end of the rotary base Fi2, respectively. Each guide recess 24, 26 results from the formation of a bulge 20.22 on the respective molded plate 16.18. The thickness between each guide recess 24 and 26 [is the width W of the cutting tip 8
In relation to this, the guide recesses 24 and 26 should be appropriately determined within a range that can avoid the accumulation of chips M and provide good fixing strength for the cutting tip 8. The reduction in the structural strength of the rotary substrate 2 due to the thinning of the outer peripheral end is compensated for by the raised portions 20 and 22. In this example, in particular, since the molded plates are joined together, the thickness t between the guide recesses 24 and 26 can be made thinner with respect to the width W of the cutting tip 8 while maintaining good structural strength of the rotary substrate 2. In addition, cutter blades require flatness accuracy of the rotary board 2 to suppress center runout, but in the case of a two-plate structure like this example, it is easier to adjust the brightness compared to a single-plate structure, and the blade It is also easy to increase the diameter.
次に切屑Mの排出動作を説明する。切削チップ8の部位
で生成される切屑Mは、第2図に示すように、案内凹部
24,26に導かれ、回転基板2の回転力で案内凹部2
4,26を矢印P、 Qで示す流れとなって回転方向側
へ移動して回転基板2の後方から放出される。案内凹部
24,26へ収容されて移動することにようって、切屑
Mの滞留が回避され、澱みのない排出状態が得られる。Next, the operation for discharging chips M will be explained. The chips M generated at the cutting tip 8 are guided to the guide recesses 24 and 26 as shown in FIG.
4 and 26 become flows shown by arrows P and Q, move toward the rotation direction, and are discharged from the rear of the rotating substrate 2. By being accommodated and moved in the guide recesses 24 and 26, accumulation of the chips M is avoided, and a state of discharge without stagnation is obtained.
これによって回転基[2のチップ付は根部分の摩擦が低
減し、損耗が回避される。併せて摩擦熱による切削チッ
プ8の熱劣化が回避され、切削効率が向上する。また、
この例では、矢印Sで示すように、吸気口12で取り込
まれた外気が遠心力で噴出口14から噴出され、切削チ
ップ8に接触するとともに案内凹部24,26を回転方
向に流れる。As a result, the friction at the root of the rotating base [2 with the tip] is reduced, and wear and tear is avoided. In addition, thermal deterioration of the cutting tip 8 due to frictional heat is avoided, and cutting efficiency is improved. Also,
In this example, as shown by arrow S, the outside air taken in by the intake port 12 is jetted out from the jet port 14 due to centrifugal force, comes into contact with the cutting tip 8, and flows through the guide recesses 24 and 26 in the rotational direction.
このため、切削部位の冷却がなされ切削チシプ8の熱劣
化の抑制がされに高められるとともに、切屑Mの移動が
助長されその排出効率が高められる。Therefore, the cutting part is cooled and thermal deterioration of the cutting chip 8 is greatly suppressed, and the movement of the chips M is promoted and the discharge efficiency thereof is increased.
また、この例では、成形板16.18の外周端28.3
0は外方に折曲されており、これによって切削チップ8
のろう付は面積が拡大され、固定強度の増大がなされる
。Also, in this example, the outer peripheral end 28.3 of the molded plate 16.18
0 is bent outward, thereby cutting the cutting tip 8
The brazing area is expanded and the fixing strength is increased.
吸気口12は例えば、***部20.22の内周側に長孔
32を形成して一方の縁部をプレス加工等によって回転
基[2の厚み方向外側へ膨出させることによって形成さ
れる。膨出寸法は空気流入に有効な吸気口12の開口面
積が噴出口14の面積と同程度になるように決定される
ものである。The intake port 12 is formed, for example, by forming a long hole 32 on the inner peripheral side of the raised portion 20.22 and bulging one edge outward in the thickness direction of the rotating base [2] by pressing or the like. The size of the bulge is determined so that the opening area of the intake port 12 effective for air inflow is approximately the same as the area of the jet port 14.
吸気口12の外側面部は空気抵抗を軽減させるために膨
出量を漸減させるとともに湾曲状ないし流線状の形状に
形成されている。各成形板16.18はそれぞれ、***
部20,22等をプレス加工等により形成された後スポ
ット溶接等の手段で接合される。The outer surface of the intake port 12 is formed into a curved or streamlined shape with a gradually decreasing amount of bulge in order to reduce air resistance. Each molded plate 16, 18 has raised portions 20, 22, etc. formed by pressing or the like, and then joined by means such as spot welding.
回転a[2が正回転方向としての矢印R方向に回転され
ると、遠心力によって空洞部10内の空気が噴出口14
から勢いよく排出される。これによって空洞部10内は
負圧状態となるため、回転基[2の外部の空気が吸気口
12から空洞部10へ勢いよく流入する。この勢いのあ
る空気の流入・排出が回転中維持される。When the rotation a[2 is rotated in the direction of arrow R, which is the forward rotation direction, the air in the cavity 10 is moved to the jet nozzle 14 by centrifugal force.
It is expelled vigorously. As a result, the inside of the cavity 10 becomes in a negative pressure state, so that air outside the rotary base [2 flows forcefully into the cavity 10 from the intake port 12. This forceful air inflow and outflow is maintained during rotation.
次に第3図及び第4図はハンドカッターに取り付けて使
用した場合の切削状態を示す。Next, FIGS. 3 and 4 show cutting conditions when used attached to a hand cutter.
ハンドカッター本体36への固定は、回転基板2の取付
孔4をハンドカッター本体36の駆動軸38に挿通して
行われ、コンクリート等の被削材Cに対する駆動軸38
0位zai整をもって、切込み深さdが設定される。The hand cutter body 36 is fixed to the hand cutter body 36 by inserting the drive shaft 38 of the hand cutter body 36 through the mounting hole 4 of the rotating board 2, and the drive shaft 38 is fixed to the workpiece C such as concrete.
The depth of cut d is set with the 0 position zai adjustment.
吸気孔12から空洞部10へ勢いよく流入した空気は矢
印で示すように、回転による遠心力で空洞部10の外周
側へ案内され、噴出口14から半径方向外側へ勢いよく
排出される。これにより、切削チップ8が冷却されると
ともに、切削部位では切屑Mが排出口40側へ吹き飛ば
される。この場合、排出口40に接続される集塵器(図
示しない)の吸引力の作用とともに切削屑Mは排出口4
0側へ良好に搬送される。The air that has flowed forcefully into the cavity 10 from the intake hole 12 is guided toward the outer periphery of the cavity 10 by centrifugal force due to rotation, as shown by the arrow, and is vigorously discharged from the jet port 14 radially outward. As a result, the cutting tip 8 is cooled, and the chips M are blown away toward the discharge port 40 at the cutting site. In this case, along with the suction force of a dust collector (not shown) connected to the discharge port 40, the cutting waste M is removed from the discharge port 40.
Good transport to the 0 side.
吸気口12から取り込まれた空気が噴出口14から排出
されるまでの経路が極めて短かく、また空洞部lOがあ
る程度の幅を有するので、供給経路が長くて狭いことに
よる空気の昇温並びに供給量の低下を回避でき、よって
冷却効率の向上を図ることができる。また、コンプレッ
サー等の空気圧搾源を必要としないので、周辺機器の大
幅な縮小化とハンドカッター等の小型軽量駆動体への適
用を図ることができる。The path for the air taken in from the intake port 12 to be discharged from the jet port 14 is extremely short, and the cavity lO has a certain width, so the temperature rise and supply of air due to the long and narrow supply path. This makes it possible to avoid a decrease in the amount of water, thereby improving cooling efficiency. Furthermore, since an air compression source such as a compressor is not required, peripheral equipment can be significantly downsized and the invention can be applied to small and lightweight drive bodies such as hand cutters.
この実施例で示したブレードと、回転基板が単なる単板
で形成される従来のブレードとの間において、同一条件
下で切削チップ表面温度の比較実験を行った結果、1m
切削後で、本例のものが58°Cに対して従来のものが
90″C,am切削後で、本例のものが90℃に対して
従来のものが120℃の結果が得られた。実験結果から
、従来のものに比べて熱抑制性能ないし冷却効率が極め
て高いことが確認されたものである。As a result of a comparative experiment of cutting tip surface temperature under the same conditions between the blade shown in this example and a conventional blade in which the rotating substrate is formed of a single plate, it was found that
After cutting, the results were 58°C for this example and 90"C for the conventional one. After am cutting, the results were 90°C for this example and 120°C for the conventional one. Experimental results have confirmed that the heat suppression performance and cooling efficiency are extremely high compared to conventional products.
この例では吸気口12、噴出口14及びこれらを連通さ
せる空洞部10について特定の形状を例示したが、これ
らに限られるものではなく、良好な冷却効率を維持し得
る範囲内で適宜決定し得るものである。In this example, specific shapes are illustrated for the intake port 12, the jet port 14, and the cavity 10 that communicates these, but the shape is not limited to these and can be determined as appropriate within a range that can maintain good cooling efficiency. It is something.
さらにまた、噴出口14は空洞部10の逃がし溝6に対
応する部分を開口して形成したが、例えば、切削チップ
8を回転基板2の半径方向をもって貫通し空洞部10に
連通ずる貫通孔を形成する形態とすることもできる。Furthermore, although the spout 14 is formed by opening a portion of the cavity 10 corresponding to the relief groove 6, for example, a through hole that penetrates the cutting tip 8 in the radial direction of the rotary substrate 2 and communicates with the cavity 10 is formed. It is also possible to form a shape.
また、ダイヤモンド焼結体の切削チップ8を有するブレ
ードに限らず、超硬合金や超硬質セラミック等を焼結し
て形成した切削チップを有するブレードに適用しても同
様の機能を得ることができるものである。Further, the same function can be obtained not only by applying the blade to a blade having a cutting tip 8 made of a diamond sintered body but also to a blade having a cutting tip formed by sintering cemented carbide, superhard ceramic, etc. It is something.
なお、この例においては回転基板2を成形it6.1B
の合わせ構造としたが、無論単板構造とすることもでき
る。この場合には、案内凹部24゜26は圧延等の手段
で形成することができる。In addition, in this example, the rotating board 2 is molded by molding it6.1B.
Although a laminated structure is used, it is of course possible to use a single-panel structure. In this case, the guide recesses 24 and 26 can be formed by rolling or other means.
この発明によれば、回転基板の外周側端部に形成される
案内凹部によって切屑が案内、排出されるので、切屑の
滞留が回避されるとともに、摩擦が緩和される。これに
より、回転基板の外周側端部の摩耗が軽減され、よって
ブレードの長寿命化を図ることができる。併せて切削チ
ップの熱劣化が抑制されるので、切削効率の向上を図る
ことができる。According to this invention, chips are guided and discharged by the guide recess formed at the outer peripheral end of the rotary substrate, so that accumulation of chips is avoided and friction is alleviated. This reduces wear on the outer peripheral end of the rotary substrate, thereby extending the life of the blade. In addition, since thermal deterioration of the cutting tip is suppressed, cutting efficiency can be improved.
第1図はこの発明に係るカッターブレードの一実施例を
示す平面図、第2図はその切削状態を示し、第1図の■
−■線での部分斜視図、第3図は第1図の■−m線にお
ける概要断面図、第4図は第3図の■−IV線における
全体断面図、第5図は従来の切屑の排出状態を示す図で
ある。
2・・・回転基板、4・・・取付孔
8・・・切削チップ
24.26・・・案内凹部、M・・・切屑38・・・駆
動軸FIG. 1 is a plan view showing an embodiment of the cutter blade according to the present invention, and FIG. 2 shows its cutting state.
Figure 3 is a schematic sectional view taken along line ■-m in Figure 1, Figure 4 is an overall sectional view taken along line ■-IV in Figure 3, and Figure 5 shows conventional chips. It is a figure showing the discharge state of. 2...Rotating board, 4...Mounting hole 8...Cutting tip 24.26...Guiding recess, M...Chip 38...Drive shaft
Claims (1)
と、この回転基板の外周に設けられるダイヤモンド焼結
体の切削チップとから成るカッターブレードにおいて、 前記回転基板の外周側端部に切屑を排出するための案内
凹部が形成されることを特徴とするカッターブレード。[Scope of Claims] A cutter blade comprising a disk-shaped rotating substrate having a drive shaft mounting hole in the center, and a cutting tip made of a diamond sintered body provided on the outer periphery of the rotating substrate, comprising: A cutter blade characterized in that a guide recess for discharging chips is formed at a side end.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22697989A JPH0390308A (en) | 1989-09-01 | 1989-09-01 | Cutter blade |
US07/510,078 US5040341A (en) | 1989-04-17 | 1990-04-17 | Rotary cutter wheel |
EP90304109A EP0393989A1 (en) | 1989-04-17 | 1990-04-17 | Rotary cutter wheel |
KR1019900005370A KR910018147A (en) | 1989-04-17 | 1990-04-17 | Rotary cutter blade |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22697989A JPH0390308A (en) | 1989-09-01 | 1989-09-01 | Cutter blade |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0390308A true JPH0390308A (en) | 1991-04-16 |
Family
ID=16853609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22697989A Pending JPH0390308A (en) | 1989-04-17 | 1989-09-01 | Cutter blade |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0390308A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1275460A1 (en) * | 2001-07-10 | 2003-01-15 | Ake Knebel GmbH & Co. | Circular saw blade with elements for removing saw chips |
EP1316379A1 (en) * | 2001-11-30 | 2003-06-04 | Turbolite AG | Rotary cutting blade |
CN102773869A (en) * | 2012-07-10 | 2012-11-14 | 常州欧亚重工机械有限公司 | Hot shearing round blade |
CN107310051A (en) * | 2017-08-26 | 2017-11-03 | 惠安县文雕石业有限公司 | A kind of stainless steel substrate for diamond cutting tool |
-
1989
- 1989-09-01 JP JP22697989A patent/JPH0390308A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1275460A1 (en) * | 2001-07-10 | 2003-01-15 | Ake Knebel GmbH & Co. | Circular saw blade with elements for removing saw chips |
EP1316379A1 (en) * | 2001-11-30 | 2003-06-04 | Turbolite AG | Rotary cutting blade |
CN102773869A (en) * | 2012-07-10 | 2012-11-14 | 常州欧亚重工机械有限公司 | Hot shearing round blade |
CN107310051A (en) * | 2017-08-26 | 2017-11-03 | 惠安县文雕石业有限公司 | A kind of stainless steel substrate for diamond cutting tool |
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