JPS62251076A - Mounting structure for grinding tip of diamond tool - Google Patents
Mounting structure for grinding tip of diamond toolInfo
- Publication number
- JPS62251076A JPS62251076A JP9067686A JP9067686A JPS62251076A JP S62251076 A JPS62251076 A JP S62251076A JP 9067686 A JP9067686 A JP 9067686A JP 9067686 A JP9067686 A JP 9067686A JP S62251076 A JPS62251076 A JP S62251076A
- Authority
- JP
- Japan
- Prior art keywords
- tip
- tool
- tool body
- protrusion
- short time
- 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.)
- Granted
Links
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 16
- 239000010432 diamond Substances 0.000 title claims abstract description 16
- 238000003466 welding Methods 0.000 abstract description 12
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 230000004927 fusion Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000005219 brazing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、ダイヤモンド工具におけるダイヤモンド砥
石チップの取付は構造、特に、チップと工具本体間の抵
抗溶接性を本体の加工を容易にして向上させた取付は構
造に関する。[Detailed Description of the Invention] [Industrial Application Field] This invention provides a structure for attaching a diamond grinding wheel tip to a diamond tool, and in particular, improves the resistance weldability between the tip and the tool body by facilitating processing of the body. Installation is related to structure.
なお、この発明でいうダイヤモンド工具とは、チップが
、ＣＢＮ （立方晶型窒化ホウ素）などのダイヤモンド
と同効の物質からなる工具も含む。Note that the term "diamond tool" as used in the present invention includes a tool whose tip is made of a material having the same effect as diamond, such as CBN (cubic boron nitride).
石材やコンクリートの切断加工に用いられるダイヤモン
ドカッタは、第１図に示すように、円板状の工具本体１
の外周部に、周方向に所定間隔でダイヤモンド砥石チッ
プ２を固着して構成される。A diamond cutter used for cutting stone and concrete has a disc-shaped tool body 1, as shown in Figure 1.
Diamond grindstone chips 2 are fixed to the outer circumferential portion of the grinding wheel at predetermined intervals in the circumferential direction.
この工具本体１とチップ２との固着手段としては、従来
ろう付けによるものが主流になっているが、高温状態に
おいてろう付は部の接合強度が大きく低下する欠点があ
るために、最近では、チップ２を抵抗溶接により固着す
る方法が注目されている。Conventionally, brazing has been the mainstream method for fixing the tool body 1 and the tip 2, but brazing has the disadvantage that the joint strength of the parts is greatly reduced in high temperature conditions, so recently, brazing has been A method of fixing the chip 2 by resistance welding is attracting attention.
これは、工具本体１とチップ２の接合面を突き合わせて
、これに大電流を通電し、発生する抵抗熱により接合部
を加熱、溶融状態にし、圧力を加えて接合するものであ
る。In this method, the joint surfaces of the tool body 1 and the tip 2 are brought into contact with each other, a large current is passed through them, the joint is heated and melted by the generated resistance heat, and pressure is applied to join them.
この方法では、銀ろうなどのろう材を用いないので、チ
ップ２が高温状態になっても接合強度の低下がなく、ま
た機械によって溶接条件が自動的に定まるので、作業者
の熟練や技量に関係なく一定の接合状態が得られる等の
利点がある。Since this method does not use a brazing material such as silver solder, there is no decrease in joint strength even if the chip 2 reaches a high temperature, and the welding conditions are automatically determined by the machine, so it depends on the skill and skill of the operator. There are advantages such as a constant bonding state can be obtained regardless of the condition.
ところで、抵抗溶接においては、接合部の形状が、溶接
性に大きな影響を与える。すなわち、接合部が広い平坦
な面であると、電気抵抗が小さくなって温度が十分に上
昇せず、その面の溶融に長い時間を必要とする。逆に、
接合面を尖鋭にして突き合せ時の接触面積を適当に小さ
くすると、電気抵抗が増加して加熱が促進され、短時間
で溶接が完了することが知られている。By the way, in resistance welding, the shape of the joint has a large effect on weldability. That is, if the joint is a wide flat surface, the electrical resistance will be low, the temperature will not rise sufficiently, and it will take a long time to melt the surface. vice versa,
It is known that if the joint surfaces are made sharp and the contact area during butting is appropriately reduced, the electrical resistance will increase, heating will be accelerated, and welding will be completed in a short time.
このため、以前より第４図に示すように、工具本体１１
の外周部を、先端が尖った波状に形成して溶接性を高め
る工夫がなされている。このように本体１１の接合部形
状を変化させると、波状先端の溶融性が向上し短時間で
溶接できる。しかしその一方で上記工具本体１１は、そ
の外周に沿わせてひとつひとつ波の谷部を形成していく
必要があるため、加工性が極めて悪くなる問題があった
。For this reason, as shown in FIG.
The outer periphery of the welding part is shaped like a wave with a pointed tip to improve weldability. By changing the shape of the joint of the main body 11 in this way, the meltability of the wavy tip improves and welding can be performed in a short time. However, on the other hand, since the tool body 11 needs to form wave troughs one by one along its outer periphery, there is a problem in that workability becomes extremely poor.
この発明は、上記の問題に鑑み、工具本体の接合部の加
工性をよくした上で、溶接性を向上させることができる
チップの取付は構造を提供することを目的としている。In view of the above-mentioned problems, it is an object of the present invention to provide a tip attachment structure that can improve the workability of the joint portion of the tool body and also improve the weldability.
上記問題点を解決するために、この発明は、工具本体の
チップ取付は面に、尖鋭な突条を工具本体の回転軸と同
心の円上に形成し、その突条にダイヤモンド砥石チップ
を接触させて抵抗溶接するようにしたのである。In order to solve the above problems, this invention forms a sharp protrusion on a circle concentric with the rotation axis of the tool body on the tip mounting surface of the tool body, and contacts the diamond grinding wheel tip with the protrusion. This led to resistance welding.
突条とチップを接触させた状態で工具本体とチップ間に
大電流を通じると、突条の先端部が集中的に加熱されて
過熱状態になり、短時間で溶融する。When a large current is passed between the tool body and the tip while the protrusion and the tip are in contact, the tip of the protrusion is intensively heated, becomes overheated, and melts in a short time.
また、上記突条は、工具本体を回転軸を中心に回転させ
ながら、チップ取付は面に適当な工具を押し当てること
により容易に形成することができる。Further, the above-mentioned protrusions can be easily formed by pressing an appropriate tool against the surface of the tool body while rotating the tool body around the rotation axis.
以下、この発明の実施例を添付図面に基づいて説明する
。Embodiments of the present invention will be described below with reference to the accompanying drawings.
第２図に示すように、工具本体１の外周部には、断面が
全周にわたって尖鋭な三角形状となった突条３が形成さ
れている。As shown in FIG. 2, a protrusion 3 having a sharp triangular cross section over the entire circumference is formed on the outer circumference of the tool body 1.
突条３を形成する２つの面５．６は、対称に形成され、
その突条３の先端部４は、本体１の両端面間の中心に位
置している。The two surfaces 5.6 forming the protrusion 3 are formed symmetrically,
The tip 4 of the protrusion 3 is located at the center between both end faces of the main body 1.
ダイヤモンド砥石チップ２の接合は、工具本体１の両側
面を、回転電極で保持して、所定の取付は位置に位置決
めし、一方チツブ２を上記回転電極と対極の電極により
保持して、その中心を第２図に示すように、突条３の先
端部４に沿わせ接触させる。この状態で、両方の電極に
大電流を通電すると、突条３の先端部４が集中的に加熱
されて溶融される。したがって、チップ２と本体１間に
急激な接合圧力を加えてやれば、両者を良好にすること
ができる。The diamond grinding wheel tip 2 is joined by holding both sides of the tool body 1 with rotating electrodes and positioning it at a predetermined position, while the tip 2 is held by the rotating electrode and the opposite electrode, and its center is fixed. as shown in FIG. 2, along and in contact with the tip 4 of the protrusion 3. In this state, when a large current is applied to both electrodes, the tips 4 of the protrusions 3 are intensively heated and melted. Therefore, by applying sudden bonding pressure between the chip 2 and the main body 1, both can be improved.
この接合圧力が大きければ、第３図に示すように、溶融
金属２ａが本体１の端面より外側に押出されて、チップ
２と本体１との接合面積が広められる。If this bonding pressure is large, the molten metal 2a is pushed outward from the end surface of the main body 1, as shown in FIG. 3, and the bonding area between the chip 2 and the main body 1 is expanded.
上記工具本体１外周の突条３は、本体１を回転軸穴７を
中心に回転させて、外周面に適当な切削、或いは研削工
具を押し当てることによって簡単に形成することができ
る。The protrusions 3 on the outer periphery of the tool body 1 can be easily formed by rotating the main body 1 around the rotary shaft hole 7 and pressing a suitable cutting or grinding tool against the outer circumferential surface.
また、上記突条３先端部の交差角は、５０″′以上１２
０ °以下の範囲であれば、実用に耐える接合強度が
得られるが、より強い接合強度が必要な場合は、上記交
差角を６０″′から９０’の範囲の中で設定するのが望
ましい。なお、交差角５０６以上としたのは、５０６以
下であると実用に耐える接合強度を得られないからであ
り、また、交差角の上限値を１２０６としたのは、充分
な溶接抵抗が得られないからである。In addition, the intersection angle of the tips of the protrusions 3 is 50'' or more and 12
If it is in the range of 0° or less, a bonding strength that can withstand practical use can be obtained, but if stronger bonding strength is required, it is desirable to set the above-mentioned intersection angle within the range of 60'' to 90'. The reason for setting the intersection angle to be 506 or more is because if it is less than 506, it is not possible to obtain a bonding strength that can withstand practical use, and the reason that the upper limit value of the intersection angle is 1206 is that sufficient welding resistance cannot be obtained. That's because there isn't.
また、上記のようなチップの取付は構造は、第５図に示
すようなコアドリル８や、第６図に示すように円板状基
盤９の端面に複数のチップ２′が取付けられるポリシャ
ー１０などの工具に対しても、同様に適用することがで
きる。In addition, the structure for attaching the chips as described above may include a core drill 8 as shown in FIG. The same can be applied to other tools as well.
以上説明したように、この発明においては、工具本体の
チップ取付は面に尖鋭な突条を形成したので、その突条
にチップを接触させて抵抗溶接すると、突条の先端が容
易に加熱溶融状態となり、第４図に示すような従来のも
のと同等以上の短い時間で溶接を完了ができ、作業の能
率を向上させることができる。As explained above, in this invention, a sharp protrusion is formed on the surface of the tool body to attach the tip, so when the tip is brought into contact with the protrusion and resistance welded, the tip of the protrusion is easily heated and melted. As shown in FIG. 4, welding can be completed in a shorter time than that of the conventional welding method, and work efficiency can be improved.
また、突条は、工具本体と同心の円板状としたもので、
本体を回転軸の回りに回転させることにより簡単に形成
することができる。したがって、工具本体の形成に手間
がかからず、従来のものに比べて加工性を大きく向上さ
せることができる。In addition, the protrusion is a disc-shaped concentric with the tool body,
It can be easily formed by rotating the main body around a rotation axis. Therefore, it does not take much time to form the tool body, and workability can be greatly improved compared to conventional tools.
第１図は発明のチップ取付は構造を採用したダイヤモン
ドカッタを示す斜視図、第２図は実施例における接合前
の突条とチップとの関係を示す断面図、第３図は溶接後
の工具本体とチップを示す断面図、第４図は従来例にお
けるチップと本体の接合部形状を示す要部正面図、第５
図及び第６図はそれぞれこの発明のコアドル及びポリシ
ャーへの適用を示す断面図である。
１・・・・・・工具本体、２・・・・・・ダイヤモンド
砥石チップ、３・・・・・・突条、４・・・・・・先端
部、５．６・・・・・・面。
第５図Fig. 1 is a perspective view showing a diamond cutter employing the tip attachment structure of the invention, Fig. 2 is a sectional view showing the relationship between the protrusion and the tip before joining in the embodiment, and Fig. 3 is the tool after welding. FIG. 4 is a cross-sectional view showing the main body and the chip, FIG.
6 are sectional views showing the application of the present invention to a coredler and a polisher, respectively. 1...Tool body, 2...Diamond whetstone tip, 3...Protrusion, 4...Tip, 5.6... surface. Figure 5
Claims (1)
体の回転軸と同心の円上に形成し、その突条に、ダイヤ
モンド砥石チップを接触させて抵抗溶接することを特徴
とするダイヤモンド工具におけるダイヤモンド砥石チッ
プの取付け構造。A diamond tool characterized in that a sharp protrusion is formed on the tip mounting surface of the tool body on a circle concentric with the rotation axis of the tool body, and a diamond grinding wheel tip is brought into contact with the protrusion and resistance welded. Mounting structure of diamond grinding wheel tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61090676A JPH072305B2 (en) | 1986-04-18 | 1986-04-18 | How to attach a diamond grinding wheel tip to a diamond tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61090676A JPH072305B2 (en) | 1986-04-18 | 1986-04-18 | How to attach a diamond grinding wheel tip to a diamond tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62251076A true JPS62251076A (en) | 1987-10-31 |
| JPH072305B2 JPH072305B2 (en) | 1995-01-18 |
Family
ID=14005140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61090676A Expired - Lifetime JPH072305B2 (en) | 1986-04-18 | 1986-04-18 | How to attach a diamond grinding wheel tip to a diamond tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH072305B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107984283A (en) * | 2017-11-23 | 2018-05-04 | 中国工程物理研究院机械制造工艺研究所 | A kind of cutting edge localization method of diamond cutter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59209770A (en) * | 1983-05-13 | 1984-11-28 | Asahi Daiyamondo Kogyo Kk | Method of manufacturing diamond cutting grindstone |
-
1986
- 1986-04-18 JP JP61090676A patent/JPH072305B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59209770A (en) * | 1983-05-13 | 1984-11-28 | Asahi Daiyamondo Kogyo Kk | Method of manufacturing diamond cutting grindstone |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107984283A (en) * | 2017-11-23 | 2018-05-04 | 中国工程物理研究院机械制造工艺研究所 | A kind of cutting edge localization method of diamond cutter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH072305B2 (en) | 1995-01-18 |
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