JPH0234749B2 - - Google Patents
Info
- Publication number
- JPH0234749B2 JPH0234749B2 JP59122338A JP12233884A JPH0234749B2 JP H0234749 B2 JPH0234749 B2 JP H0234749B2 JP 59122338 A JP59122338 A JP 59122338A JP 12233884 A JP12233884 A JP 12233884A JP H0234749 B2 JPH0234749 B2 JP H0234749B2
- Authority
- JP
- Japan
- Prior art keywords
- dresser
- abrasive grains
- ridge
- section
- mold
- 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
- 239000006061 abrasive grain Substances 0.000 claims description 63
- 239000000463 material Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000010432 diamond Substances 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 238000000227 grinding Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000000843 powder Substances 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005323 electroforming Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Landscapes
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は研削砥石等を総型ドレツシングするた
めのロータリドレツサー、ブロツクドレツサー等
のドレツサーおよびその製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a dresser such as a rotary dresser or a block dresser for dressing a grinding wheel or the like, and a method for manufacturing the same.
かかるドレツサーの一形式として、ロール状、
ブロツク状等のドレツサー本体の表面に断面三角
形の１または複数条の畝状凸部を備え、この畝状
凸部に多数接着したダイアモンド、超硬焼結体等
の超硬砥粒を同畝状凸部の表面に露出させてなる
ドレツサーがある。この種ドレツサーは研削砥石
をその畝状凸部に対応する凹部形状に精度よくド
レツシングするのに使用されるもので、例えば第
９図または第１０図に示すように、ドレツサー用
の成形型１内に設けた断面三角形の畝状凹部の両
側面１ａ，１ｂに多数の砥粒２ａ，２ｂを接着
し、その後またはさらにメツキを施した後ドレツ
サー本体３の成形用素材たる金属粉末または金属
溶融物を成形型１内に充填して成形する焼結溶浸
法または電鋳法により形成される。
One form of such a dresser is a roll,
One or more ridge-like protrusions with a triangular cross section are provided on the surface of the block-shaped dresser body, and a large number of carbide abrasive grains such as diamonds or cemented carbide sintered bodies are bonded to these ridge-like protrusions in the same ridge shape. There is a dresser that has a convex surface exposed. This type of dresser is used to accurately dress a grinding wheel into a concave shape that corresponds to its ridge-like protrusions.For example, as shown in FIG. 9 or FIG. A large number of abrasive grains 2a, 2b are adhered to both sides 1a, 1b of a ridge-like recess with a triangular cross section provided in the ridge, and after that or after plating, metal powder or metal molten material, which is the material for forming the dresser body 3, is attached. It is formed by a sinter infiltration method or an electroforming method in which the mold 1 is filled and molded.
しかして、この種ドレツサーにおいて、第９図
に示すように砥粒２ａの大粒である場合には、同
砥粒２ａを成形型１の畝状凹部の内側先端に位置
させることが不可能であり、この結果砥粒２ａを
ドレツサー本体３の畝状凸部３ａの頂部に配置し
得ず、研削砥石等を尖鋭角度にて精度よくドレツ
シングすることは不可能である。また、これとは
逆に第１０図に示すように砥粒２ｂが小粒である
場合には、同砥粒２ｂを成形型１の畝状凹部の内
側先端に位置させてドレツサー本体３の畝状凸部
３ａの頂部に配置させることができ、これにより
研削砥石等を尖鋭角度にて精度よくドレツシング
することができる。しかしながら、かかるドレツ
サーにおいて砥粒２ｂはドレツサー本体３に対す
る接触面積が小さいためにその保持力が弱く、使
用中にドレツサー本体３から脱落し易い。このた
め、所定のドレツシング精度を長期間保持するこ
とが困難であり、また砥粒２ｂが小粒であること
からドレツシング精度の低下後の修正も困難であ
る。 However, in this type of dresser, if the abrasive grains 2a are large as shown in FIG. As a result, the abrasive grains 2a cannot be placed on the tops of the ridge-like convex portions 3a of the dresser body 3, making it impossible to accurately dress the grinding wheel or the like at a sharp angle. On the other hand, if the abrasive grains 2b are small as shown in FIG. It can be disposed at the top of the convex portion 3a, thereby making it possible to dress a grinding wheel or the like with high accuracy at a sharp angle. However, in such a dresser, since the abrasive grains 2b have a small contact area with the dresser body 3, their holding power is weak and they tend to fall off from the dresser body 3 during use. Therefore, it is difficult to maintain a predetermined dressing accuracy for a long period of time, and since the abrasive grains 2b are small, it is also difficult to correct the dressing accuracy after it has deteriorated.
本発明はかかる問題に対処すべくなされたもの
で、その主たる目的は、使用する砥粒の形状、配
置等を考慮することにより研削砥石等を尖鋭角度
にて精度よくドレツシングすることができ、かつ
所定のドレツシング精度を長期間保持し得るドレ
ツサーを提供することにある。
The present invention has been made to address such problems, and its main purpose is to be able to dress a grinding wheel or the like with high precision at a sharp angle by considering the shape, arrangement, etc. of the abrasive grains used, and An object of the present invention is to provide a dresser that can maintain a predetermined dressing accuracy for a long period of time.
かかる目的を達成すべく、本発明の第１の発明
はこの種ドレツサーにおいて、前記砥粒が前記畝
状凸部の断面の頂部側角度より小なる頂部側角度
を有する三角形状の断面を備え、かつ前記畝状凸
部に所定間隔に配置されてその頂部が前記畝状凸
部の頂部上に位置していることにその構成上の特
徴がある。
In order to achieve such an object, a first aspect of the present invention provides a dresser of this type, wherein the abrasive grains have a triangular cross section having a top side angle smaller than a top side angle of the cross section of the ridged convex portion, The structure is characterized in that they are arranged at predetermined intervals on the ridge-like protrusions, and their apexes are located above the tops of the ridge-like protrusions.
また、本発明の第２の発明はこの種ドレツサー
を製造する方法において、前記砥粒として前記畝
状凸部の断面の頂部側角度より小なる頂部側角度
を有する三角形状の断面を備えた砥粒を採用し、
同砥粒を前記成形型の畝状凹部内に所定間隔にて
嵌込んでその両側面の一方に交互に接着すること
にその特徴がある。 Further, a second aspect of the present invention is a method for manufacturing a dresser of this kind, in which the abrasive grains have a triangular cross section having a top side angle smaller than a top side angle of the cross section of the ridged convex portion. Adopts grain,
Its feature lies in that the abrasive grains are fitted into the ridge-like recesses of the mold at predetermined intervals and adhered alternately to one of both sides thereof.
〔発明の作用・効果〕
これにより、本発明の第１の発明においては、
各砥粒の一部をドレツサー本体の畝状凸部に強固
に埋設した状態にてその頂部を畝状凸部の頂部上
に配置することができる。このため、かかるドレ
ツサーによれば、研削砥石等の尖鋭角度にて精度
よくドレツシングすることができるとともに、所
定のドレツシング精度を長期間保持することがで
きる。[Operations and effects of the invention] As a result, in the first invention of the present invention,
A portion of each abrasive grain can be firmly embedded in the ridge-like protrusion of the dresser main body, and the top portion thereof can be placed on the top of the ridge-like protrusion. Therefore, according to such a dresser, it is possible to perform dressing with high accuracy using a sharp angle such as a grinding wheel, and it is also possible to maintain a predetermined dressing accuracy for a long period of time.
また、本発明の第２の発明においては、各砥粒
の頂部を成形型の畝状凹部の内側先端に確実に位
置させることができるため、同頂部をドレツサー
本体の畝状凸部の頂部上に位置させることがで
き、かつ各砥粒の基部を畝状凹部に強固に埋設す
ることができる。従つて、かかる製造方法によれ
ば、第１の発明に係るドレツサーを容易に製造す
ることができる。 Further, in the second aspect of the present invention, since the top of each abrasive grain can be reliably positioned at the inner tip of the ridge-like recess of the mold, the top of each abrasive grain can be positioned above the top of the ridge-like convex of the dresser body. The base of each abrasive grain can be firmly embedded in the ridge-like recess. Therefore, according to this manufacturing method, the dresser according to the first invention can be easily manufactured.
以下、本発明の実施例を図面に基づいて説明す
るに、第１図には本発明に係るドレツサーの第１
実施例が示されている。このドレツサー１０はピ
ストンリングの外周溝部、ネジ等を研削する研削
砥石を総型ドレツシングするためのロータリドレ
ツサーであり、筒状のドレツサー本体１１の外周
に複数の環状の畝状凸部１２を備えている。各畝
状凸部１２は断面三角形を呈してその頂部が鋭角
に形成されており、各畝状凸部１２間が平坦な環
状凹部１３となつている。ドレツサー本体１１は
タングステン等の耐熱耐摩耗性の金属粉末を銅、
ニツケル、亜鉛等を主成分とする溶浸材にて結合
してなるもので、各畝状凸部１２には第２図およ
び第３図に示すように多数の砥粒１４が埋設され
ている。
Hereinafter, embodiments of the present invention will be explained based on the drawings.
An example is shown. This dresser 10 is a rotary dresser for dressing a grinding wheel for grinding the outer peripheral groove of a piston ring, a screw, etc., and has a plurality of annular ridge-like protrusions 12 on the outer periphery of a cylindrical dresser body 11. We are prepared. Each of the ridge-like protrusions 12 has a triangular cross-section with an acute angle apex, and a flat annular recess 13 is formed between each of the ridge-like protrusions 12 . The dresser body 11 is made of heat-resistant and wear-resistant metal powder such as tungsten, copper,
It is bonded with an infiltration material mainly composed of nickel, zinc, etc., and a large number of abrasive grains 14 are embedded in each ridge-like convex portion 12 as shown in FIGS. 2 and 3. .
しかして、砥粒１４は単結晶のダイアモンドま
たは微少ダイアモンド、立方晶形窒化硼素等の多
結晶焼結体からなる超硬砥粒で、断面三角形の三
角柱状に形成されている。砥粒１４は第３図に示
すように、その頂部１４ａの側角度がドレツサー
本体１１の畝状凸部１２の頂部１２ａ側角度より
小さい鋭角に形成され、かつその頂部１４ａから
の高さが畝状凸部１２の頂部１２ａからの高さよ
り高く形成されている。 The abrasive grains 14 are carbide abrasive grains made of a polycrystalline sintered body of single-crystal diamond, minute diamond, cubic boron nitride, etc., and are formed in the shape of a triangular prism with a triangular cross section. As shown in FIG. 3, the abrasive grains 14 are formed to have an acute angle with a side angle of the apex 14a smaller than the side angle of the apex 12a of the ridge-like convex portion 12 of the dresser main body 11, and a height from the apex 14a of the abrasive grain 14 is an acute angle. The height is higher than the height of the convex portion 12 from the top 12a.
かかる砥粒１４はその基部１４ｂおよび一側部
１４ｃを畝状凸部１２に埋設した状態にて同凸部
１２に配置されており、かかる埋設状態にて各砥
粒１４はそれらの他側面１４ｄを同凸部１２の一
側面１２ｂ，１２ｃへ交互に露出させて各頂部１
４ａを同凸部１２の頂部１２ａ上に位置させてい
る。なお、各環状凹部１３には砥粒１４と同質の
小粒の砥粒１５が多数固着されている。 These abrasive grains 14 are arranged in the ridge-like convex part 12 with their base part 14b and one side part 14c buried in the convex part 12, and in this buried state, each abrasive grain 14 is buried in the other side face 14d. are alternately exposed to one side surface 12b, 12c of the convex portion 12, and each top portion 1 is
4a is located on the top portion 12a of the convex portion 12. Note that a large number of small abrasive grains 15 of the same quality as the abrasive grains 14 are fixed to each annular recess 13 .
このように構成したロータリドレツサー１０に
おいては、各砥粒１４の頂部１４ａが畝状凸部１
２の頂部１２ａ上に位置しているため、研削砥石
を尖鋭角度にて精度よくドレツシングすることが
できる。また、かかるロータリドレツサー１０に
おいては、各砥粒１４の基部１４ｂおよび一側部
１４ｃが畝状凸部１２に埋設されているため各砥
粒１４が保持する力が大きく、この結果各砥粒１
４の脱落が防止されて所定のドレツシング精度を
長期間保持することができる。さらにまた、各砥
粒１４が強固に埋設されていることと相俟つて大
粒であるため、ドレツシング精度の低下後の修正
が容易である。 In the rotary dresser 10 configured in this manner, the top portion 14a of each abrasive grain 14 forms a ridge-like convex portion 1.
2, the grinding wheel can be dressed accurately at a sharp angle. Further, in the rotary dresser 10, since the base portion 14b and one side portion 14c of each abrasive grain 14 are embedded in the ridge-like convex portion 12, the force held by each abrasive grain 14 is large, and as a result, each abrasive grain 14 has a large holding force. grain 1
4 is prevented from falling off, and a predetermined dressing accuracy can be maintained for a long period of time. Furthermore, since each abrasive grain 14 is firmly embedded and is large, it is easy to correct the dressing accuracy after it has deteriorated.
かかるロータリドレツサー１０は、第３図およ
び第４図に示す方法により好適に製造することが
できる。 Such a rotary dresser 10 can be suitably manufactured by the method shown in FIGS. 3 and 4.
第４図において、符号Ｍはロータリドレツサー
１０を形成する公知の成形型でグラフアイトから
なる筒状を呈しており、その内周にドレツサー本
体１１の各畝状凸部１２に対応する複数の畝状凹
部ｍ１を備えている。畝状凹部ｍ１は断面三角形
を呈する環状に形成されており、両側面ma，mb
にて形成される内側先端側角度は畝状凸部１２の
頂部１２ａ側角度と略同角度になつている。 In FIG. 4, reference numeral M denotes a known mold for forming the rotary dresser 10, which has a cylindrical shape made of graphite, and has a plurality of ridges corresponding to each ridge-like convex portion 12 of the dresser main body 11 on its inner periphery. It is provided with a ridge-like recessed portion m1. The ridge-like recess m1 is formed in an annular shape with a triangular cross section, and has both sides ma and mb.
The angle on the inner tip side formed by is approximately the same angle as the angle on the top 12a side of the ridge-like convex portion 12.
かかる成形型Ｍを用いてロータリドレツサー１
０を形成するには、各畝状凹部ｍ１に各砥粒１４
をまた内周に多数の砥粒１５をそれぞれ接着剤に
て接着し、しかる後成形型Ｍの内孔略中央部に中
子ｍ２を立設してドレツサー本体１１の成形用粉
末素材１１Ａを充填するとともに粉末素材１１Ａ
上に溶浸材１１Ｂを載置し、これらの全てを公知
の手段にて溶浸材１１Ｂの融点以上に加熱する
（焼結溶浸法）。これにより、溶融した溶浸材１１
Ｂが粉末素材１１Ａ中に溶浸し、これを冷却すれ
ば凝固して粉末素材１１Ａそれ自体を結合してド
レツサー本体１１を形成するとともに、ドレツサ
ー本体１１と各砥粒１４，１５とを結合してロー
タリドレツサー１０とする。なお、粉末素材１１
Ａとしてタングステン粉末、溶浸材１１Ｂとして
銅、ニツケル、亜鉛を主成分とする溶浸材および
砥粒１４，１５として微小ダイアモンドの多結晶
焼結体を用いる場合には、700〜900℃の加熱温度
が適当である。 The rotary dresser 1 is manufactured using such a mold M.
0, each abrasive grain 14 is placed in each ridge-like recess m1.
Also, a large number of abrasive grains 15 are adhered to the inner circumference of the mold M with an adhesive, and then a core m2 is erected approximately at the center of the inner hole of the mold M, and the powder material 11A for molding the dresser body 11 is filled. At the same time, powder material 11A
The infiltrant 11B is placed on top, and all of these are heated to a temperature higher than the melting point of the infiltrator 11B by known means (sintering infiltration method). As a result, the melted infiltrant 11
B is infiltrated into the powder material 11A, and when it is cooled, it solidifies and binds the powder material 11A itself to form the dresser body 11, and also binds the dresser body 11 and each abrasive grain 14, 15. Let it be a rotary dresser 10. In addition, powder material 11
When using tungsten powder as A, an infiltrant whose main components are copper, nickel, and zinc as the infiltrant 11B, and a polycrystalline sintered body of micro diamonds as the abrasive grains 14 and 15, heating at 700 to 900°C. The temperature is appropriate.
しかして、本実施例においては、粉末素材１１
Ａを充填するに先立つて各砥粒１４を第３図に示
すように成形型Ｍの畝状凹部ｍ１にその頂部１４
ａ側から嵌込んで、その他側面１４ｄを畝状凹部
ｍ１の両側面ma，mbのいずれか一方に接着す
る。各砥粒１４を接着するに当つては、それらの
他側面１４ｄが両側面ma，mbの一方に交互に接
着される。 Therefore, in this embodiment, the powder material 11
Prior to filling A, each abrasive grain 14 is placed in the ridged recess m1 of the mold M at its top 14 as shown in FIG.
It is inserted from side a, and the other side surface 14d is adhered to either side surface ma or mb of the ridged recess m1. When bonding each abrasive grain 14, the other side surface 14d of each abrasive grain 14 is bonded alternately to one of both side surfaces ma and mb.
このようにして形成されたロータリドレツサー
１０においては、各砥粒１４の頂部１４ａがドレ
ツサー本体１１の畝状凸部１２の頂部１２ａ上に
位置するとともにその基部１４ｂおよび一側部１
４ｃが畝状凸部１２に埋設され、かつその他側面
１４ｄが露出する。従つて、第１図に示すロータ
リドレツサー１０が得られる。 In the rotary dresser 10 formed in this way, the apex 14a of each abrasive grain 14 is located on the apex 12a of the ridge-like protrusion 12 of the dresser main body 11, and the base 14b and one side 1
4c is buried in the ridge-like convex portion 12, and the other side surface 14d is exposed. Therefore, the rotary dresser 10 shown in FIG. 1 is obtained.
なお、本発明においては、第５図に示すロータ
リドレツサー２０のごとく、ドレツサー本体２１
の畝状凸部２２における砥粒２４の埋設部位以外
の部位に、従来のロータリドレツサーに使用され
る大粒、小粒の砥粒２５を多数固着させてもよ
い。なお、かかるロータリドレツサー２０におい
てドレツサー本体２１、各砥粒２４及び砥粒２５
はロータリドレツサー１０のそれらと同一であ
る。また、本発明においては砥粒１５，２５等を
省略することができる。
In addition, in the present invention, as in the rotary dresser 20 shown in FIG.
A large number of large and small abrasive grains 25 used in a conventional rotary dresser may be fixed to a part of the ridge-like convex part 22 other than the part where the abrasive grains 24 are buried. In addition, in this rotary dresser 20, the dresser main body 21, each abrasive grain 24 and abrasive grain 25
are the same as those of the rotary dresser 10. Further, in the present invention, the abrasive grains 15, 25, etc. can be omitted.
さらにまた、本発明においては、各砥粒を三角
形状の頂部が尖鋭な砥粒１４，２４に換えて第６
図に示すように頂部がわずかに円味をおびた三角
形状の砥粒３４Ａ、第７図ａ〜ｃに示すように頂
部側に三角形状の断面を備え、この頂部側角度が
畝状凸部の断面頂部側角度より小さい砥粒３４
Ｂ，３４Ｃ，３４Ｄ等を採用することができ、か
つこれら各砥粒の高さは畝状凸部の高さよりも低
くてよい。 Furthermore, in the present invention, each abrasive grain is replaced with a triangular abrasive grain 14, 24 having a sharp top.
As shown in the figure, the abrasive grain 34A has a triangular shape with a slightly rounded top, and as shown in FIGS. Abrasive grains 34 smaller than the cross-sectional top side angle of
B, 34C, 34D, etc. can be adopted, and the height of each of these abrasive grains may be lower than the height of the ridge-like projections.
なお、以上の説明においては、本発明をロータ
リドレツサーに実施した例について示したが、本
発明は第８図に示すようにブロツクドレツサー４
０にも実施することができ、またロータリドレツ
サー１０，２０、ブロツクドレツサー４０等を製
造する方法として電鋳法を採用することもでき
る。第８図において、ドレツサー本体４１はブロ
ツク状を呈しその表面に複数条の畝状凸部４２を
備えていて、各畝状凸部４２に砥粒１４と同形状
の砥粒４４が固着され、かつ各畝状凸部４２の他
の部分および各平坦凹部４３に砥粒１５と同粒の
砥粒４５が多数固着されている。 In the above explanation, an example in which the present invention is applied to a rotary dresser has been described, but the present invention can also be applied to a block dresser 4 as shown in FIG.
0, and an electroforming method can also be adopted as a method for manufacturing the rotary dressers 10, 20, block dresser 40, etc. In FIG. 8, the dresser main body 41 has a block shape and has a plurality of ridge-like protrusions 42 on its surface, and abrasive grains 44 having the same shape as the abrasive grains 14 are fixed to each ridge-like protrusion 42. In addition, a large number of abrasive grains 45 having the same grain as the abrasive grain 15 are fixed to other parts of each ridge-like convex part 42 and to each flat concave part 43.
第１図は本発明の一例に係るロータリドレツサ
ーの正面図、第２図は同ドレツサーの拡大部分正
面図、第３図は同ドレツサーの成形型への砥粒の
配置状態を示す成形型と砥粒との拡大部分断面
図、第４図は同ドレツサーの製造方法を示す成形
型の概略縦断面図、第５図は同ドレツサーの変形
例を示す拡大部分正面図、第６図は砥粒の変形例
を示す第３図に対応する断面図、第７図ａ，ｂ，
ｃは砥粒の他の変形例を示す斜視図、第８図は本
発明の他の一例に係るブロツクドレツサーの斜視
図、第９図および第１０図は従来のドレツサーの
成形型への砥粒の配置状態を示す第３図に対応す
る断面図である。
符号の説明、１０，２０，４０……ドレツサ
ー、１１，２１，４１……ドレツサー本体、１
２，２２，４２……畝状凸部、１４，２４，４４
……砥粒、Ｍ……成形型、ｍ１……畝状凹部。
FIG. 1 is a front view of a rotary dresser according to an example of the present invention, FIG. 2 is an enlarged partial front view of the dresser, and FIG. 3 is a mold showing how abrasive grains are arranged in the mold of the dresser. 4 is a schematic longitudinal sectional view of a mold showing a method for manufacturing the dresser, FIG. 5 is an enlarged partial front view of a modified example of the dresser, and FIG. 6 is an enlarged partial sectional view of the dresser. A sectional view corresponding to FIG. 3 showing an example of grain modification, FIG. 7 a, b,
FIG. 8 is a perspective view of a block dresser according to another example of the present invention, and FIGS. 9 and 10 are diagrams showing a conventional dresser in a mold. FIG. 4 is a sectional view corresponding to FIG. 3 showing the arrangement of abrasive grains. Explanation of symbols, 10, 20, 40... Dresser, 11, 21, 41... Dresser body, 1
2, 22, 42... ridge-like convex portion, 14, 24, 44
... Abrasive grain, M ... Molding mold, m1 ... Ridge-shaped recess.
Claims (1)
の畝状凸部にダイアモンド、超硬焼結体等からな
る超硬砥粒を多数固着し、同砥粒の一部を前記畝
状凸部の表面に露出させてなるドレツサーにおい
て、前記砥粒が前記畝状凸部の断面の頂部側角度
より小さくなる頂部側角度を有する三角形状の断
面を備え、かつ前記畝状凸部に所定間隔に配置さ
れてその頂部が前記畝状凸部の頂部上に位置して
いることを特徴とするドレツサー。 ２ ドレツサーの成形型内に設けた断面三角形の
畝状凹部の両側面に超硬砥粒を多数接着し、次い
でこの成形型内にドレツサー本体の成形用素材を
充填して前記砥粒と一体的に成形し、前記ドレツ
サー本体の表面に前記砥粒を露出させた断面三角
形の畝状凸部を備えたドレツサーを製造する方法
において、前記砥粒として前記畝状凸部の断面の
頂部側角度より小なる頂部側角度を有する三角形
状の断面を備えた砥粒を採用し、同砥粒を前記成
形型の畝状凹部内に所定間隔にて嵌込んでその両
側面の一方に交互に接着することを特徴とするド
レツサーの製造方法。[Scope of Claims] 1. A large number of carbide abrasive grains made of diamond, cemented carbide sintered body, etc. are fixed to the ridge-like convex portions having a triangular cross section formed on the surface of the dresser main body, and some of the abrasive grains are attached to the ridges. In the dresser, the abrasive grains are provided with a triangular cross section having a top side angle smaller than the top side angle of the cross section of the ridged projections, and A dresser characterized in that the ridges are arranged at predetermined intervals and the tops of the ridges are located above the tops of the ridge-like projections. 2 A large number of carbide abrasive grains are adhered to both sides of a ridged recess with a triangular cross section provided in the mold of the dresser, and then the material for forming the dresser main body is filled into this mold so that the material is integrated with the abrasive grains. In the method of manufacturing a dresser having a ridged protrusion having a triangular cross section in which the abrasive grains are exposed on the surface of the dresser main body, the abrasive grains are formed from a top side angle of the cross section of the ridged protrusion. Abrasive grains having a triangular cross section with a small top side angle are employed, and the abrasive grains are fitted into the ridged recesses of the mold at predetermined intervals and adhered alternately to one of both sides thereof. A method of manufacturing a dresser characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12233884A JPS614668A (en) | 1984-06-14 | 1984-06-14 | Dresser and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12233884A JPS614668A (en) | 1984-06-14 | 1984-06-14 | Dresser and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS614668A JPS614668A (en) | 1986-01-10 |
| JPH0234749B2 true JPH0234749B2 (en) | 1990-08-06 |
Family
ID=14833493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12233884A Granted JPS614668A (en) | 1984-06-14 | 1984-06-14 | Dresser and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS614668A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE50013979D1 (en) * | 2000-10-23 | 2007-03-08 | Wendt Gmbh | Conditioning of grinding wheels |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58181570A (en) * | 1982-04-14 | 1983-10-24 | 遠藤 寅造 | Rotary dressor |
-
1984
- 1984-06-14 JP JP12233884A patent/JPS614668A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58181570A (en) * | 1982-04-14 | 1983-10-24 | 遠藤 寅造 | Rotary dressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS614668A (en) | 1986-01-10 |
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| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |