JPS6325907B2 - - Google Patents
Info
- Publication number
- JPS6325907B2 JPS6325907B2 JP57136653A JP13665382A JPS6325907B2 JP S6325907 B2 JPS6325907 B2 JP S6325907B2 JP 57136653 A JP57136653 A JP 57136653A JP 13665382 A JP13665382 A JP 13665382A JP S6325907 B2 JPS6325907 B2 JP S6325907B2
- Authority
- JP
- Japan
- Prior art keywords
- wheel
- workpiece
- adjustment wheel
- adjustment
- protrusion
- 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
Links
Classifications
-
- 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
- B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
- B24B5/22—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding cylindrical surfaces, e.g. on bolts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Description
【発明の詳細な説明】
本発明は、回転砥石と、この回転砥石と同じ方
向に回転する調整車との間に送り、被研削物を回
転砥石と調整車の回転軸方向に移送するセンター
レス研削装置に関するもので、その目的とすると
ころは、仕上り形状に最も影響を及ぼす調整車側
の出口ガイドを調整車と一体化して、面倒な調整
作業を不要とするとともに、良好な仕上り形状が
得られるセンターレス研削装置を提供することに
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a centerless grinding tool that transports a workpiece to be ground between a rotary whetstone and an adjustment wheel that rotates in the same direction as the rotary whetstone, and transports the workpiece in the direction of the rotation axis of the rotary whetstone and the adjustment wheel. This relates to a grinding device, and its purpose is to integrate the exit guide on the adjusting wheel side, which has the most influence on the finished shape, with the adjusting wheel, thereby eliminating the need for troublesome adjustment work and achieving a good finished shape. The purpose of the present invention is to provide a centerless grinding device that can be used.
一般に、センターレス研削装置は、第１図のよ
うに、回転砥石１とこの回転砥石１と同方向に回
転する調整車２との間に被研削物（以下ワークと
記す）３に送り、ワーク３はブレード４により支
持され、ガイド５，６にガイドされて回転砥石１
と調整車２の回転軸方向に研削されながら移送す
る。７は砥石ドレツサー装置、８は砥石カバー、
９は調整車台、１０は刃物台であり、１１は調整
車ドレツサー装置である。このものにあつて、調
整車２の軸は回転砥石１の軸に対して第２図ａ，
ｂに示すように一定角度βだけ傾斜して取付けら
れている。この角度βはワーク３の移送速度を支
配する要素で、β＝０であれば送り力は０で移送
されず、Ｂが大きくなる程移送速度が大きくな
る。尚、第２図ａは平面図、第２図ｂは側面図を
示している。又、第２図ａ，ｂにおける調整車２
の外周形状は実際の形状を示している。その理由
をつぎに説明する。 Generally, a centerless grinding device, as shown in FIG. 3 is supported by a blade 4 and guided by guides 5 and 6 to rotate the grinding wheel 1.
The material is transported while being ground in the direction of the rotation axis of the adjustment wheel 2. 7 is a grinding wheel dresser device, 8 is a grinding wheel cover,
9 is an adjustment wheel base, 10 is a tool rest, and 11 is an adjustment wheel dresser device. In this case, the axis of the adjusting wheel 2 is aligned with the axis of the rotating grindstone 1 as shown in FIG.
As shown in b, it is installed inclined at a certain angle β. This angle β is an element that governs the transfer speed of the workpiece 3. If β=0, the feed force is 0 and the workpiece 3 is not transferred, and the larger B is, the larger the transfer speed is. Note that FIG. 2a shows a plan view, and FIG. 2b shows a side view. Also, the adjustment wheel 2 in Fig. 2 a and b
The outer circumferential shape of shows the actual shape. The reason for this will be explained below.
第３図ａ，イのように回転砥石１の軸と調整車
２の軸が平行（β＝０）であれば、ワーク３のパ
スラインPLと回転砥石１の軸とは平行となつて
おり、パスラインPL上の調整車２の形状は第３
図ａ，ロのように直線となつている。つぎに、調
整車２を円筒状にして第３図ｂ，イのように角度
βの傾斜をもたせると、パスラインPL上の調整
車２の形状は第３図ｂ，ロのように凸状になる。
この点を補正するために調整車２を第３図ｃ，イ
のようにつづみ状にして角度βの傾斜をもたせる
と、パスラインPL上の調整車２の形状は第３図
ｃ，ロのように直線となる。いいかえれば、調整
車２を傾斜させた場合には、調整車２をつづみ状
にしなければパスラインPLは直線状にならず、
調整車２とワーク３とが点接触となるため、ワー
ク３の送りができず、たとえできたとしても送り
が不均一になつて研削のばらつきが生じる。した
がつて、調整車２の外周形状は第２図ａ，ｂに示
す形状にする必要がある。 If the axis of the rotating grindstone 1 and the axis of the adjusting wheel 2 are parallel (β = 0) as shown in Fig. 3 a and b, the pass line PL of the workpiece 3 and the axis of the rotating grindstone 1 are parallel. , the shape of the adjustment wheel 2 on the pass line PL is the third
It is a straight line as shown in figures a and b. Next, if the adjusting wheel 2 is made into a cylindrical shape and inclined at an angle β as shown in Fig. 3 b and a, the shape of the adjusting wheel 2 on the pass line PL will be convex as shown in Fig. 3 b and b. become.
In order to correct this point, if the adjusting wheel 2 is made into a chain shape as shown in Figures 3c and 3 and tilted at an angle β, the shape of the adjusting wheel 2 on the pass line PL will be changed as shown in Figures 3c and 3. It becomes a straight line. In other words, if the adjustment wheel 2 is tilted, the pass line PL will not become straight unless the adjustment wheel 2 is made into a chain shape.
Since the adjustment wheel 2 and the workpiece 3 come into point contact, the workpiece 3 cannot be fed, and even if it could be fed, the feed would be uneven, causing variations in grinding. Therefore, the outer peripheral shape of the adjusting wheel 2 needs to be the shape shown in FIGS. 2a and 2b.
従来のセンターレス研削装置にあつては、第４
図のように、ワーク３の出口側のガイド５，６の
他に入口側にガイド１２，１３を設けており、研
削後の品質、特にワーク３の仕上り形状に影響を
及ぼすのが出口側のガイド６である。その理由
は、第５図のように、ブレード４の角度θによる
ワーク３の質量Ｗの分力fXによりワーク３が調整
車２に押しつけられ、この面を基準にして研削さ
れているからで、支えるものがないと所定形状に
仕上ることができないためである。したがつて、
調整車２におけるガイド５，６の位置により第６
図ａ〜ｅのようなワーク３の円筒度になる。即
ち、第６図ａのように調整車２とガイド６が直線
上にある場合は、円筒度０のものが得られ、第６
図ｂのようにガイド５，６が角度γだけ左側に傾
斜しているときはワーク３の中央部分が細くな
り、第６図ｃのようにガイド５，６が右側に傾斜
しているときはワーク３の両端が細くなり、又、
第６図ｄのように、ガイド６が調整車２よりｈだ
け右側へずれたときはワーク３の終端側が細くな
り、ガイド６が左側にずれた場合には、ワーク３
が出て来ないため、研削できない。以上のよう
に、ガイド５，６、特にガイド６の位置が研削後
の品質に影響を及ぼすが、ガイド５，６，１２，
１３は第４図のようにそれぞれガイドセツト軸Ａ
によつてＸ方向とθ方向に調整が可能である。ガ
イドセツト軸Ａはブレード４とともに刃物台１０
に固定され、刃物台１０は調整車２とともに調整
車台９に取付けられている。 In the case of conventional centerless grinding equipment, the fourth
As shown in the figure, in addition to guides 5 and 6 on the outlet side of the workpiece 3, guides 12 and 13 are provided on the inlet side, and it is the outlet side that affects the quality after grinding, especially the finished shape of the workpiece 3. This is guide 6. The reason for this is that, as shown in Fig. 5, the workpiece 3 is pressed against the adjustment wheel 2 by a component force fX of the mass W of the workpiece 3 due to the angle θ of the blade 4, and the workpiece 3 is ground based on this surface. This is because the desired shape cannot be achieved without something to support it. Therefore,
The position of the guides 5 and 6 on the adjusting wheel 2
The cylindricity of the workpiece 3 is as shown in Figures a to e. That is, when the adjusting wheel 2 and the guide 6 are on a straight line as shown in FIG.
When the guides 5 and 6 are tilted to the left by an angle γ as shown in Figure b, the central part of the workpiece 3 becomes thin, and when the guides 5 and 6 are tilted to the right as shown in Figure 6 c, Both ends of workpiece 3 become thinner, and
As shown in Fig. 6d, when the guide 6 shifts to the right side from the adjusting wheel 2 by h, the end side of the workpiece 3 becomes thinner, and when the guide 6 shifts to the left side, the workpiece 3
Grinding is not possible because it does not come out. As mentioned above, the position of the guides 5, 6, especially the guide 6, affects the quality after grinding, but the guides 5, 6, 12,
13 is the guide set axis A as shown in Fig. 4.
can be adjusted in the X direction and the θ direction. The guide set axis A is attached to the tool post 10 along with the blade 4.
The turret 10 and the adjustment wheel 2 are attached to the adjustment chassis 9.
上述のような従来のセンターレス研削装置はつ
ぎの欠点を有する。まず、品質維持のために調整
車２のドレツシングを定期的に必要とするが、そ
のとき、第７図の破線で示す位置まで調整車２が
下がり、ガイド６の位置を同時に調整する必要が
あり、又、ワーク３の径が変るなど品種切換えの
とき、品質維持のために第１図の寸法Ｈを変更す
る必要があり、第８図の２点鎖線で示す位置まで
調整車２を動かした場合、ガイド６の位置を同時
に調整する必要があり、更に、上記調整におい
て、仕上精度がミクロン台であるために勘にたよ
り、測定しながら調整しなければならず、熟練し
た人でも40〜60分かかるという欠点を有する。 The conventional centerless grinding device as described above has the following drawbacks. First, in order to maintain quality, it is necessary to periodically dress the adjusting wheel 2, but at that time, the adjusting wheel 2 is lowered to the position shown by the broken line in FIG. 7, and the position of the guide 6 must be adjusted at the same time. Also, when changing the product type, such as when the diameter of the workpiece 3 changes, it is necessary to change the dimension H in Figure 1 to maintain quality, and the adjustment wheel 2 is moved to the position shown by the two-dot chain line in Figure 8. In this case, it is necessary to adjust the position of the guide 6 at the same time.Furthermore, in the above adjustment, the finishing accuracy is on the order of microns, so it is necessary to rely on intuition and adjust while measuring. It has the disadvantage of being time consuming.
本発明はかかる点に鑑みてなされたもので、以
下実施例により詳細に説明する。 The present invention has been made in view of this point, and will be explained in detail below with reference to Examples.
第９図ないし第１１図において、１は回転砥
石、２は調整車であつて、調整車２におけるワー
ク３の出口側には移送方向突出物１４が調整車２
の全周に亘つて一体に突設される。すなわち、調
整車２は、回転砥石１と対向する領域と、移送方
向突出物１４とを一体に保有しているわけであ
る。移送方向突出物１４の突出長さL1は、ワー
ク３の長さl1よりも長く設定されており、移送方
向突出物１４の周面は調整車２の軸方向に傾斜す
る傾斜面１８となつている。この傾斜面１８はテ
ンプレート（図示せず）により形成される。した
がつて、傾斜面１８の角度に応じて回転砥石１の
出口側がワーク３の中央部または両端部に強く当
たるのであり、第１１図ａのように、傾斜面１８
を出口側ほど回転砥石１側に近付く向きに傾斜さ
せている場合には、ワーク３の中央部が凹となる
ように研削でき、第１１図ｂのように、傾斜面を
出口側ほど回転砥石１から離れるように傾斜させ
ている場合には、ワーク３の中央部が凸となるよ
うに研削することができるのである。すなわち、
仕上り形状に最も重要な影響を与える出口側での
調整車２のガイドの機能を調整車２と一体に形成
された移送方向突出物１４によつて受け持たせる
ことができるのである。このように、移送方向突
出物１４を調整車２に一体に形成しているから、
調整車２をドレツシングしても移動方向突出物１
４は調整車２に対して常に一定の関係を保つこと
ができ、ワーク３の径の変更、調整車２のドレツ
シング等に対して、所定の仕上精度を得るための
調節作業が簡略化されるのである。ここに、調整
車２には、研削加工における円滑な回転補助のた
めに、摩擦抵抗が比較的大きいゴム系の材料を用
いている。入口側のガイド１２，１３について
は、従来と同様の配置となるが、出口側における
回転砥石１側のガイド５は移送方向突出物１４の
傾斜面１８に略平行となるように移送方向突出物
１４の周面に対向して配設される。 In FIGS. 9 to 11, 1 is a rotary grindstone, 2 is an adjustment wheel, and a protrusion 14 in the transfer direction is located on the exit side of the workpiece 3 in the adjustment wheel 2.
is integrally protruded over the entire circumference. That is, the adjustment wheel 2 integrally has a region facing the rotary grindstone 1 and the transfer direction protrusion 14. The protrusion length L 1 of the transfer direction protrusion 14 is set to be longer than the length l 1 of the workpiece 3, and the peripheral surface of the transfer direction protrusion 14 forms an inclined surface 18 that is inclined in the axial direction of the adjustment wheel 2. It's summery. This inclined surface 18 is formed by a template (not shown). Therefore, depending on the angle of the inclined surface 18, the outlet side of the rotary grindstone 1 strongly hits the center or both ends of the workpiece 3, and as shown in FIG. 11a, the inclined surface 18
If the workpiece 3 is inclined so that it approaches the rotating grindstone 1 side as the exit side approaches, it is possible to grind the workpiece 3 so that the central part becomes concave, and as shown in Fig. 11b, the rotating grindstone When the workpiece 3 is tilted away from the workpiece 1, the workpiece 3 can be ground so that the central part becomes convex. That is,
The function of guiding the adjusting wheel 2 on the exit side, which has the most important influence on the finished shape, can be performed by the transfer direction protrusion 14 formed integrally with the adjusting wheel 2. In this way, since the transfer direction protrusion 14 is integrally formed with the adjustment wheel 2,
Even if the adjustment wheel 2 is dressed, the protruding object 1 in the moving direction
4 can always maintain a constant relationship with the adjusting wheel 2, which simplifies the adjustment work to obtain a predetermined finishing accuracy when changing the diameter of the workpiece 3, dressing the adjusting wheel 2, etc. It is. Here, the adjusting wheel 2 is made of a rubber-based material with relatively high frictional resistance in order to assist smooth rotation during grinding. The guides 12 and 13 on the entrance side are arranged in the same way as in the conventional case, but the guide 5 on the rotary grindstone 1 side on the exit side is arranged so that it is approximately parallel to the inclined surface 18 of the projection 14 in the transport direction. It is disposed opposite to the peripheral surface of 14.
以上のようにして、ワーク３の寸法の変更や調
整車２のドレツシング等にかかわらず、つづみ状
や樽状となるように、ワーク３を均一な仕上精度
で仕上ることができるという利点を有するのであ
る。 As described above, there is an advantage in that the workpiece 3 can be finished with uniform finishing accuracy so that it has a tuft-like or barrel-like shape, regardless of changes in the dimensions of the workpiece 3 or dressing of the adjustment wheel 2. It is.
本発明は上述のように、回転砥石と、前記回転
砥石と同方向に回転する調整車との間に被研削物
を送り、前記被研削物を回転砥石を調整車の回転
軸方向に移送するセンターレス被研装置におい
て、調整車の回転砥石と対向する領域より被研削
物の出口側に向かつて調整車の全周に亘つて移送
方向突出物を一体に設け、前記移送方向突出物の
長さを被研削物の長さより長くするとともに、移
送方向突出物の周面を調整車の軸方向に対して傾
斜する傾斜面として成るものであり、移送方向突
出物を調整車の出口側に一体に突設し、かつ、そ
の突出量を被研削物の長さよりも長くしているか
ら、仕上り形状に最も影響の大きい調整車の出口
側のガイドを調整車と一体である移送方向突出物
によつて行なうことができるのであり、調整車の
調整と同時にガイドの調整を行なうことができる
という利点を有する。その結果、調整車の調節を
行なつても仕上精度に影響を与えずに良好な仕上
精度で加工を行なうことができるのである。ま
た、移送方向突出物の長さを被研削物の長さより
も長くしているから、被研削物と傾斜面とを研削
中で変化のない一定条件で接触させることができ
るのであり、移送方向における前端部と後端部と
を対称に仕上ることができる利点がある。さら
に、移送方向突出物の周面を調整車の軸に対して
傾斜する傾斜面としているから、この傾斜角に応
じてつづみ状や樽状に仕上ることができるという
利点を有するのである。 As described above, the present invention transports an object to be ground between a rotating grindstone and an adjustment wheel that rotates in the same direction as the rotating grindstone, and transports the object to be ground in the direction of the rotation axis of the adjustment wheel. In a centerless grinding device, a protrusion in the transfer direction is integrally provided over the entire circumference of the adjustment wheel toward the exit side of the object to be ground from a region facing the rotating grindstone of the adjustment wheel, and the length of the protrusion in the transfer direction is The length is longer than the length of the object to be ground, and the peripheral surface of the protrusion in the transfer direction is an inclined surface inclined with respect to the axial direction of the adjustment wheel, and the protrusion in the transfer direction is integrated on the exit side of the adjustment wheel. The guide on the exit side of the adjustment wheel, which has the greatest effect on the finished shape, can be made into a protrusion in the transfer direction that is integrated with the adjustment wheel. This has the advantage that the guide can be adjusted simultaneously with the adjustment of the adjustment wheel. As a result, even if the adjustment wheel is adjusted, the finishing accuracy is not affected and processing can be performed with good finishing accuracy. In addition, since the length of the protrusion in the transfer direction is longer than the length of the object to be ground, the object to be ground and the inclined surface can be brought into contact with each other under a constant condition that does not change during grinding, and in the transfer direction There is an advantage that the front end and the rear end can be finished symmetrically. Furthermore, since the peripheral surface of the protrusion in the transfer direction is an inclined surface inclined with respect to the axis of the adjustment wheel, it has the advantage that it can be finished in a tuft-like or barrel-like shape depending on the inclination angle.
第１図は従来のセンターレス研削装置の一部切
欠した正面図、第２図ａ，ｂはそれぞれ同上の要
部の構造図、第３図ａ〜ｃは同上の動作説明図、
第４図は同上の要部上面図、第５図は同上の動作
原理説明図、第６図ａ〜ｅは同上の研削状態説明
図、第７図は同上の調整車をドレツシングしたと
きの要部上面図、第８図は同上の被研削物の径が
大きいものを研削するときの要部上面図、第９図
は本発明の一実施例を示す要部上面図、第１０図
は同上の要部斜視図、第１１図ａ，ｂはそれぞれ
同上の要部上面図である。
１は回転砥石、２は調整車、３は被研削物、５
はガイド、１４は移送方向突出物、１８は傾斜面
である。
FIG. 1 is a partially cutaway front view of a conventional centerless grinding device, FIGS. 2 a and b are structural diagrams of the main parts of the same, and FIGS. 3 a to c are explanatory diagrams of the same operation,
Fig. 4 is a top view of the main parts of the same as above, Fig. 5 is an explanatory diagram of the principle of operation of the same as above, Fig. 6 a to e is an explanatory diagram of the grinding state of the same as above, and Fig. 7 is a main part when dressing the adjusting wheel as above. FIG. 8 is a top view of the main part when grinding a large diameter workpiece, FIG. 9 is a top view of the main part showing an embodiment of the present invention, and FIG. 10 is the same as the above. FIGS. 11a and 11b are perspective views of the main parts of the same, and FIGS. 11a and 11b are top views of the main parts of the same. 1 is a rotating grindstone, 2 is an adjustment wheel, 3 is an object to be ground, 5
14 is a guide, 14 is a protrusion in the transport direction, and 18 is an inclined surface.
Claims (1)
る調整車との間に被研削物を送り、前記被研削物
を回転砥石と調整車の回転軸方向に移送するセン
ターレス研削装置において、調整車の回転砥石と
対向する領域より被研削物の出口側に向かつて調
整車の全周に亘つて移送方向突出物を一体に設
け、前記移送方向突出物の長さを被研削物の長さ
より長くするとともに、移送方向突出物の周面を
調整車の軸方向に対して傾斜する傾斜面として成
ることを特徴とするセンターレス研削装置。1. In a centerless grinding device that sends an object to be ground between a rotating grindstone and an adjustment wheel that rotates in the same direction as the rotating grindstone, and transports the object to be ground in the direction of the rotation axis of the rotating grindstone and the adjustment wheel, adjustment is performed. A protrusion in the transfer direction is provided integrally over the entire circumference of the adjustment wheel toward the exit side of the object to be ground from the region facing the rotating grindstone of the wheel, and the length of the protrusion in the transfer direction is greater than the length of the object to be ground. A centerless grinding device characterized in that the peripheral surface of the protrusion in the transport direction is an inclined surface inclined with respect to the axial direction of the adjustment wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13665382A JPS5930652A (en) | 1982-08-05 | 1982-08-05 | Centerless grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13665382A JPS5930652A (en) | 1982-08-05 | 1982-08-05 | Centerless grinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5930652A JPS5930652A (en) | 1984-02-18 |
| JPS6325907B2 true JPS6325907B2 (en) | 1988-05-27 |
Family
ID=15180357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13665382A Granted JPS5930652A (en) | 1982-08-05 | 1982-08-05 | Centerless grinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5930652A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6393553A (en) * | 1986-10-03 | 1988-04-23 | Mitsubishi Metal Corp | Centerless grinder |
| JP2603533B2 (en) * | 1989-02-15 | 1997-04-23 | フジオーゼックス株式会社 | Method and apparatus for coreless grinding of shaft and groove of engine valve |
| CH682380A5 (en) * | 1990-07-25 | 1993-09-15 | Agathon Ag Maschf | Method and apparatus for external cylindrical grinding a cylindrical workpiece. |
| JP2798856B2 (en) * | 1992-09-16 | 1998-09-17 | 動力炉・核燃料開発事業団 | Continuous denitration equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4523271Y1 (en) * | 1966-10-11 | 1970-09-12 |
-
1982
- 1982-08-05 JP JP13665382A patent/JPS5930652A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5930652A (en) | 1984-02-18 |
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