JPH0513494Y2 - - Google Patents
Info
- Publication number
- JPH0513494Y2 JPH0513494Y2 JP1986153378U JP15337886U JPH0513494Y2 JP H0513494 Y2 JPH0513494 Y2 JP H0513494Y2 JP 1986153378 U JP1986153378 U JP 1986153378U JP 15337886 U JP15337886 U JP 15337886U JP H0513494 Y2 JPH0513494 Y2 JP H0513494Y2
- Authority
- JP
- Japan
- Prior art keywords
- grindstone
- headed
- double
- grinding
- base metal
- 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
- 239000010953 base metal Substances 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 28
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 14
- 238000005520 cutting process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Description
【考案の詳細な説明】
「産業上の利用分野」
本考案は、フエライト等の被削材を両面研削す
るために使用される両頭砥石に関する。[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a double-headed grindstone used for grinding both sides of a work material such as ferrite.
「従来の技術」
第７図は、この種の両頭砥石の使用状態を示す
平面図である。"Prior Art" FIG. 7 is a plan view showing the state in which this type of double-headed grindstone is used.
この両頭砥石は、対向配置された一対の円盤台
金１，１の向かい合う面のそれぞれに、多数の砥
石チツプ２……が固定されてなるものである。そ
して、回転軸３，３を介して両台金１，１を同一
方向に回転させると同時に、両台金１，１の間に
被削材Ａを通すことによつて、被削材Ａの両面を
一度に研削する。 This double-headed grindstone is made up of a large number of grindstone chips 2 . . . fixed to each of the opposing surfaces of a pair of disk base metals 1, 1 arranged oppositely. Then, both base metals 1, 1 are rotated in the same direction via the rotating shafts 3, 3, and at the same time, the workpiece A is passed between the two base metals 1, 1. Grind both sides at once.
前記砥石チツプ２……の台金１への取付状態
は、第８図および第９図に示すようになつてい
る。個々の砥石チツプ２は、湾曲した直方体状を
しており、メタル結合剤中にダイヤモンドあるい
はCBN等の超砥粒を分散させてなる砥粒層２Ａ
と、結合剤のみのメタル層２Ｂとが一体に形成さ
れてなるものである。一方、台金１の表面には、
軸取付孔４と同心に一定間隔毎に多数の溝５……
が形成されており、この溝５内に、砥石チツプ２
……は互いに一定間隔をあけて、前記メタル層２
Ｂ側を嵌め込まれてろうづけされている。 The state in which the grindstone chips 2 are attached to the base metal 1 is as shown in FIGS. 8 and 9. Each grinding wheel chip 2 has a curved rectangular parallelepiped shape, and has an abrasive layer 2A made of a metal binder with superabrasive grains such as diamond or CBN dispersed therein.
and a metal layer 2B made of only a binder are integrally formed. On the other hand, on the surface of base metal 1,
A large number of grooves 5 are formed at regular intervals concentrically with the shaft mounting hole 4...
is formed in this groove 5, and a grindstone chip 2 is inserted into the groove 5.
. . . are the metal layers 2 at a certain interval from each other.
The B side is fitted and brazed.
なお、砥石チツプの形状としては、図のような
直方体状の他に円盤型等も用いられる。 In addition to the rectangular parallelepiped shape shown in the figure, the shape of the grindstone chip may also be a disc shape.
「考案が解決しようとする問題点」
ところで、このような両頭砥石によつて実際に
研削を行なう場合には、回転軸３，３内に形成さ
れた給液路を通じて両頭砥石の中心部に研削液を
供給するとともに、両頭砥石の外部からも研削液
を噴き付けて削り屑の除去を図つている。しか
し、このように研削液を供給していても、フエラ
イト等の比較的軟質な被削材を研削した場合に
は、第９図中鎖線に示すように、砥石の半径の中
央部付近の砥石チツプ２……の間に削り屑Ｂが溜
まり、長時間の使用の後には、この削り屑Ｂのた
めに砥石の切れ味が悪くなり、研削能率が低下し
てしまうという問題があつた。"Problem that the invention attempts to solve" By the way, when actually grinding with such a double-headed grindstone, grinding is carried out through the liquid supply path formed in the rotating shafts 3, 3 to the center of the double-headed grindstone. In addition to supplying the grinding fluid, grinding fluid is also sprayed from the outside of the double-headed grindstone to remove cuttings. However, even if the grinding fluid is supplied in this way, when grinding a relatively soft workpiece material such as ferrite, the grinding fluid near the center of the radius of the grinding wheel may There was a problem in that shavings B accumulated between the chips 2, etc., and after a long period of use, the sharpness of the grinding wheel became poor due to this shavings B, resulting in a decrease in grinding efficiency.
そこで、第１０図に示すように、台金１の内部
にドリル等によつて数本の貫通孔６を放射状に形
成するとともに、適当な砥石チツプ２……の間か
らこれら貫通孔６に至る孔７……を形成し、こう
してできた給液路を通じて砥石チツプ２……の間
に研削液を供給する構成の両頭砥石も考案されて
はいる。 Therefore, as shown in FIG. 10, several through-holes 6 are formed radially inside the base metal 1 by a drill or the like, and these through-holes 6 are reached from between appropriate grinding wheel chips 2. A double-headed grindstone has also been devised in which holes 7 are formed and grinding fluid is supplied between the grinding wheel chips 2 through the liquid supply path thus formed.
しかし、前記のような給液路の形成には、長い
貫通孔６を台金の周面から高い精度で形成しなけ
ればならないため、手間とコストがかかり、特に
大形の両頭砥石においては実施が困難であるとい
う欠点があつた。また、砥石チツプ２……の間に
開口する孔７……の数が限られるうえ、孔７の径
を大きくできないので、その給液能力には限界が
あり、削り屑の除去効果も十分とは言い難かつ
た。 However, forming the liquid supply path as described above requires a long through hole 6 to be formed from the circumferential surface of the base metal with high precision, which is time consuming and costly, and is difficult to implement especially in large double-headed grindstones. The disadvantage was that it was difficult to In addition, the number of holes 7 that open between the grinding wheel chips 2 is limited, and the diameter of the holes 7 cannot be increased, so there is a limit to the liquid supply capacity and the removal effect of cuttings is insufficient. It was hard to say.
「考案の目的」
本考案は前記事情を鑑みてなされたもので、製
造が容易で、切り屑の排出性が高く、目詰まりし
にくい両頭砥石を提供することを目的とする。"Purpose of the invention" The present invention has been made in view of the above circumstances, and aims to provide a double-headed grindstone that is easy to manufacture, has high chip evacuation properties, and is less likely to become clogged.
「問題点を解決するための手段」
本考案の両頭砥石は、台金の砥石チツプを固定
する面に、台金の軸心部から外周部に向けて放射
状に延びて砥石チツプの各取付溝を横断し且つこ
の取付溝より深い給液溝を形成したことを特徴と
する。``Means for Solving the Problems'' The double-headed grindstone of the present invention has mounting grooves for each of the grindstone tips that extend radially from the axial center of the base metal toward the outer periphery on the surface of the base metal to which the grindstone chips are fixed. It is characterized by forming a liquid supply groove that crosses the mounting groove and is deeper than the mounting groove.
「実施例」
以下、図面を用いて本考案の実施例を詳細に説
明する。"Embodiments" Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図ないし第４図は、一実施例の両頭砥石を
示すものであり、前記従来と同じ部分には同一符
号を付している。 FIGS. 1 to 4 show a double-headed grindstone according to one embodiment, and the same parts as those of the conventional one are given the same reference numerals.
図中符号１０は台金であり、この台金１０の表
面には、軸取付孔４と同心に各数のチツプ取付溝
５が形成されている。また、台金１０の表面に
は、チツプ取付溝５とは別に、軸取付孔４から台
金の外周円に至る８本の給液溝１１……が放射状
に形成されている。これら給液溝１１の深さは、
チツプ取付溝５よりも（例えば0.5〜数cm程度）
深く、その幅は砥石チツプ２の長さの1/3以下と
されている。この幅が1/3よりも大きいと、給液
溝１１の上に位置する砥石チツプ２の取付強度が
不足し、脱落などのおそれが生じる。 Reference numeral 10 in the figure is a base metal, and on the surface of this base metal 10, a number of chip mounting grooves 5 are formed concentrically with the shaft mounting hole 4. Further, on the surface of the base metal 10, apart from the chip mounting groove 5, eight liquid supply grooves 11 are formed radially extending from the shaft mounting hole 4 to the outer circumference of the base metal. The depth of these liquid supply grooves 11 is
Than the tip mounting groove 5 (for example, about 0.5 to several cm)
It is deep, and its width is said to be less than 1/3 of the length of grindstone chip 2. If this width is larger than 1/3, the mounting strength of the grindstone chip 2 located above the liquid supply groove 11 will be insufficient, and there is a risk that it will fall off.
そして、前記チツプ取付溝５……には、互いに
一定間隔をあけて砥石チツプ２……が固定されて
いる。なお、給液溝１１の上に位置する砥石チツ
プは、その溝１１をまたいで両端が台金１０に固
定されるように配置されることが望ましい。 Grindstone tips 2 are fixed to the tip mounting grooves 5 at regular intervals. Note that it is desirable that the grindstone chip located above the liquid supply groove 11 be arranged so as to straddle the groove 11 and have both ends fixed to the base metal 10.
このような構成からなる両頭砥石にあつては、
回転軸（図示せず）から砥石の中心部に研削液が
供給されると、この研削液の一部が給液溝１１…
…を通り、第２図のように給液溝１１……の上に
位置する全ての砥石チツプ２……の間から流出す
る。そして、このように砥石チツプ２……の間か
ら流出した研削液は、砥石の回転につれて砥石チ
ツプ２……間に溜まる削り屑を効果的に洗い流
し、砥石の目詰まりを防ぐことができる。したが
つて、この両頭砥石にあつては、フエライト等の
比較的軟質の被削材の研削に長時間用いても、切
れ味が低下するといつたことがなく、研削効率の
向上を図ることができる。 For double-headed whetstones with such a configuration,
When grinding fluid is supplied from the rotating shaft (not shown) to the center of the grindstone, a portion of this grinding fluid flows into the fluid supply groove 11...
. . . and flows out between all the grindstone chips 2 . . . located above the liquid supply groove 11 . . . as shown in FIG. The grinding fluid thus flowing out between the grinding wheel chips 2 effectively washes away the shavings that accumulate between the grinding wheels 2 as the grinding wheel rotates, thereby preventing clogging of the grinding wheel. Therefore, with this double-headed grindstone, even if it is used for a long time to grind relatively soft work materials such as ferrite, the sharpness will not deteriorate and the grinding efficiency can be improved. .
また、この両頭砥石の給液溝１１……は、台金
１０の表面側からエンドミル等によつて削ること
により簡単に形成できるので、台金いの内部にド
リルで形成する従来の両頭砥石の給液路に比べて
手間がかからず、加工コストが安く、台金が大き
い場合にも容易に形成することができる。 In addition, the liquid supply grooves 11 of this double-headed grindstone can be easily formed by cutting from the surface side of the base metal 10 with an end mill, etc., so compared to the conventional double-headed grindstone that is formed with a drill inside the base metal. Compared to the liquid supply path, it requires less time and effort, has lower processing costs, and can be easily formed even when the base metal is large.
なお、本考案の他の実施例として、第５図に示
すように、給液溝１１……の台金外周側の開口部
１１Ａを閉じてしまうことも考えられ、この場合
には、砥石チツプ２……の間を流れる研削液の量
を増やすことができる。 In addition, as another embodiment of the present invention, as shown in FIG. 2. The amount of grinding fluid flowing between... can be increased.
また、第６図に示すように、給液溝１１を台金
の外周側に向かうにつれ台金の回転方向イ後方に
ずれる渦巻き状に形成してもよい。こうすること
により、給液溝１１……の流路抵抗を低減し、給
液溝１１……を流れる研削液の量をさらに増やす
ことができる。 Alternatively, as shown in FIG. 6, the liquid supply groove 11 may be formed in a spiral shape that deviates rearward in the rotational direction of the base metal toward the outer circumference of the base metal. By doing so, the flow path resistance of the liquid supply grooves 11 can be reduced, and the amount of grinding liquid flowing through the liquid supply grooves 11 can be further increased.
また、給液溝の幅が台金の半径の中央部から外
周縁にかけて狭まるようにしてもよく、これによ
り、特に目詰まりしやすい砥石の半径の中央部に
供給する研削液の量を増やすことができる。 Further, the width of the liquid supply groove may be made narrower from the center of the radius of the base metal to the outer peripheral edge, thereby increasing the amount of grinding liquid supplied to the center of the radius of the grindstone, which is particularly prone to clogging. I can do it.
また、前記実施例では、給液溝１１の断面がコ
字状となつていたが、これはＵ字型，Ｖ字型，半
円型等でもよい。 Further, in the embodiment described above, the cross section of the liquid supply groove 11 is U-shaped, but it may be U-shaped, V-shaped, semicircular, or the like.
さらに、砥石チツプが直方体ではなく、円盤状
等の両頭砥石においても同様の効果が得られる。 Furthermore, the same effect can be obtained with a double-headed grindstone in which the grindstone tip is not a rectangular parallelepiped but has a disk shape or the like.
「考案の効果」
本考案の両頭砥石は、台金の砥石チツプを固定
する面に、台金の軸心部から外周部に向けて砥石
チツプの下を通つて延びる給液溝を形成したもの
であり、以下の効果が得られる。"Effect of the invention" The double-headed whetstone of the present invention has a liquid supply groove formed on the surface of the base metal to which the whetstone chip is fixed, which extends from the axial center of the base metal toward the outer periphery and passes under the whetstone chip. The following effects can be obtained.
研削液が軸心部に供給されると、この研削液
の一部が給液溝を通り、給液溝の上に位置する
全ての砥石チツプの間から流れ出る。これによ
り、各砥石チツプの間に溜まる削り屑を効果的
に洗い流し、砥石の目詰まりを防ぐことができ
る。したがつて、フエライト等の比較的軟質の
被削材の研削に長時間用いても、切れ味が低下
するといつたことがなく、研削効率の向上が図
れる。 When the grinding fluid is supplied to the shaft center portion, a portion of this grinding fluid passes through the fluid supply groove and flows out from between all the grinding wheel chips located above the fluid supply groove. This makes it possible to effectively wash away the shavings that accumulate between each grindstone chip and prevent the grindstone from clogging. Therefore, even when used for a long time to grind relatively soft work materials such as ferrite, the sharpness does not deteriorate and the grinding efficiency can be improved.
この両頭砥石における給液溝は、台金をエン
ドミル等によつて表面側から削ることによつて
形成できるので、台金内部にドリルで形成する
従来の両頭砥石の給液溝に比べて形成に手間が
かからず、加工コストが安く、台金が大きい場
合にも容易に実施可能である。 The liquid supply groove in this double-headed grindstone can be formed by cutting the base metal from the surface side with an end mill, etc., so it is easier to form than the liquid supply groove of a conventional double-headed grindstone, which is formed inside the base metal with a drill. It does not take much time, the processing cost is low, and it can be easily implemented even when the base metal is large.
給液溝は台金に形成され、研削液は直接給液
溝から砥石チツプ間に流れ出る構成であるか
ら、簡単な構成の砥石チツプを交換使用するこ
とで、繰り返し使用でき、コストを低廉にする
ことができる。 The liquid supply groove is formed in the base metal, and the grinding liquid flows directly from the liquid supply groove to between the grinding wheel chips, so by replacing the simply configured grinding wheel chips, it can be used repeatedly and costs can be reduced. be able to.
第１図ないし第４図は本考案の一実施例の両頭
砥石の一部を示すもので、第１図は両頭砥石の研
削面の平面図、第２図は第１図の−線視断面
図、第３図は要部の斜視図、第４図は第３図の
矢視図である。また、第５図および第６図は、そ
れぞれ異なる本考案の他の実施例の両頭砥石を示
す断面図および研削面の平面図である。さらに、
第７図は一般的な両頭砥石の使用状態を示す平面
図、第８図は従来の両頭砥石の研削面の平面図、
第９図は第８図の−線視断面図、第１０図は
従来の他の両頭砥石の断面図である。
２……砥石チツプ、５……チツプ取付溝、１０
……台金、１１……給液溝、１１Ａ……給液溝の
端部。
Figures 1 to 4 show a part of a double-headed grindstone according to an embodiment of the present invention, in which Figure 1 is a plan view of the grinding surface of the double-headed grindstone, and Figure 2 is a cross-section taken along the - line in Figure 1. 3 is a perspective view of the main part, and FIG. 4 is a view taken along the arrow in FIG. 3. 5 and 6 are a sectional view and a plan view of the grinding surface of a double-headed grindstone according to another embodiment of the present invention, respectively. moreover,
Fig. 7 is a plan view showing the usage state of a general double-headed grindstone, Fig. 8 is a plan view of the grinding surface of a conventional double-headed grindstone,
FIG. 9 is a sectional view taken along the - line in FIG. 8, and FIG. 10 is a sectional view of another conventional double-headed grindstone. 2...Whetstone tip, 5...Chip mounting groove, 10
...Base metal, 11...Liquid supply groove, 11A...End of liquid supply groove.
Claims (1)
う面のそれぞれに、砥石チツプの取付溝が同心円
上に複数形成され、該取付溝に多数の砥石チツプ
が接合された両頭砥石において、 前記各台金の砥石チツプを固定する面に、台金
の軸心部から外周部に向けて放射状に延びて前記
各取付溝を横断し且つ該取付溝より深い給液溝が
形成されたことを特徴とする両頭砥石。[Claim for Utility Model Registration] A plurality of mounting grooves for grinding wheel chips are formed concentrically on each of the opposing surfaces of the base metals on a pair of discs arranged oppositely, and a large number of grinding wheel chips are installed in the mounting grooves. In the bonded double-headed grindstone, a surface of each of the base metals to which the grindstone chips are fixed is provided with a groove that extends radially from the axial center of the base metal toward the outer circumference, crosses each of the mounting grooves, and is deeper than the mounting grooves. A double-headed whetstone characterized by the formation of liquid grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986153378U JPH0513494Y2 (en) | 1986-10-06 | 1986-10-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986153378U JPH0513494Y2 (en) | 1986-10-06 | 1986-10-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6360560U JPS6360560U (en) | 1988-04-22 |
| JPH0513494Y2 true JPH0513494Y2 (en) | 1993-04-09 |
Family
ID=31072204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986153378U Expired - Lifetime JPH0513494Y2 (en) | 1986-10-06 | 1986-10-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0513494Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006159323A (en) * | 2004-12-03 | 2006-06-22 | Asahi Diamond Industrial Co Ltd | Grinding wheel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5541272B2 (en) * | 1973-03-14 | 1980-10-23 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5541272U (en) * | 1978-09-11 | 1980-03-17 | ||
| JPS5982655U (en) * | 1982-11-27 | 1984-06-04 | 株式会社ノリタケカンパニーリミテド | Double-headed surface grinding wheel |
-
1986
- 1986-10-06 JP JP1986153378U patent/JPH0513494Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5541272B2 (en) * | 1973-03-14 | 1980-10-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6360560U (en) | 1988-04-22 |
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