JPS6331884Y2 - - Google Patents
Info
- Publication number
- JPS6331884Y2 JPS6331884Y2 JP1983006686U JP668683U JPS6331884Y2 JP S6331884 Y2 JPS6331884 Y2 JP S6331884Y2 JP 1983006686 U JP1983006686 U JP 1983006686U JP 668683 U JP668683 U JP 668683U JP S6331884 Y2 JPS6331884 Y2 JP S6331884Y2
- Authority
- JP
- Japan
- Prior art keywords
- hollow piston
- grinding tool
- rotary grinding
- spring
- cylinder
- 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
- 238000003825 pressing Methods 0.000 description 11
- 238000005520 cutting process Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Landscapes
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Support Of The Bearing (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は工作物のばり取りや面取り作業に用い
られる回転研削工具の改良に関するものである。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an improvement of a rotary grinding tool used for deburring and chamfering workpieces.
（従来の技術）
エアグラインダのように工作物のばり取りや面
取りを行う回転研削工具を工業用ロボツトなどに
取付けて使用する場合、工作物の硬度に応じた適
正な圧接力をもつて砥石を工作物に圧接させ難
い。このため、ばり取り或いは面取り作業時にお
いて、硬度の高い工作物に対して砥石の圧接力が
大きすぎると、摩擦抵抗が極端に大きくなり、砥
石が回転しなくなつて切削不良を生ずることとな
り、硬度の低い工作物に対して砥石の圧接力が大
きすぎると切削過多が生じ、また、工作物と砥石
との圧接力を小さくしすぎると切削時間が長くか
かり作業効率が低下する等の多くの問題点があつ
た。そこで、特開昭57−194877号公報に見られる
ように、シリンダーに押えばねをもつて下向きに
押圧された状態で嵌挿された支持枠体内にモータ
により回転する砥石車を備えた回転研削工具本体
を揺動ができるように保持させることによつて前
記のような問題点を解決する技術が公開されてい
る。(Prior art) When using a rotary grinding tool such as an air grinder for deburring or chamfering a workpiece by attaching it to an industrial robot, etc., the grinding wheel is pressed with an appropriate pressure according to the hardness of the workpiece. Difficult to press into workpiece. For this reason, during deburring or chamfering work, if the pressing force of the grindstone against a highly hard workpiece is too large, the frictional resistance will become extremely large, and the grindstone will stop rotating, resulting in cutting defects. If the pressing force of the grinding wheel is too large for a workpiece with low hardness, excessive cutting will occur, and if the pressing force between the workpiece and the grinding wheel is too small, the cutting time will take longer and work efficiency will decrease, etc. There was a problem. Therefore, as seen in Japanese Patent Application Laid-open No. 57-194877, a rotary grinding tool equipped with a grinding wheel rotated by a motor inside a support frame fitted into a cylinder with a pressure spring and pressed downward. A technique has been disclosed that solves the above-mentioned problems by holding the main body in a swingable manner.
（考案が解決しようとする課題）
しかしながら、前記公報の技術では上下方向へ
の圧力はばね圧の調整で行うことができても、横
方向への圧力調整は揺動が複数の球面軸受により
行えるようになつているため不可能であり、対象
工作物によつては前記のような問題点を解決でき
ないものであつた。(Problem to be solved by the invention) However, in the technique of the above-mentioned publication, although pressure in the vertical direction can be adjusted by adjusting the spring pressure, pressure in the lateral direction can be adjusted by using multiple spherical bearings. However, depending on the target workpiece, the above-mentioned problems cannot be solved.
（課題を解決するための手段）
本考案は前記のような問題点を解決した回転研
削工具を目的として完成されたもので、シリンダ
ーに中空ピストンを相互間に該中空ピストンを下
向きに弾発する押えばねを介在させて嵌挿してそ
の下端を該シリンダーの下端に螺合させたばね圧
調整ナツトに当接支持させ、また、中空ピストン
内にはモータにより回転される砥石車を下端に備
えた回転研削工具本体を遊嵌してその上端を中空
ピストンの天井面に球面軸受を介して揺動自在に
保持させるとともに、該回転研削工具本体の下方
部を前記中空ピストンの下方部内壁に囲設されて
気圧調整機構に接続された圧力調整自在な圧縮空
気式式の弾性保持部材をもつて抱持させたことを
特徴とするものである。(Means for Solving the Problems) The present invention was completed with the aim of creating a rotary grinding tool that solved the above-mentioned problems, and includes a hollow piston in a cylinder and a presser foot that forces the hollow piston downward between each other. A rotary grinder is fitted with a spring interposed therebetween, and its lower end is in contact with and supported by a spring pressure adjustment nut screwed onto the lower end of the cylinder, and a hollow piston has a grinding wheel rotated by a motor at its lower end. The tool body is loosely fitted and its upper end is held swingably on the ceiling surface of the hollow piston via a spherical bearing, and the lower part of the rotary grinding tool body is surrounded by the inner wall of the lower part of the hollow piston. It is characterized in that it is held by a compressed air type elastic holding member that is connected to an air pressure adjustment mechanism and can freely adjust the pressure.
（作用）
このような回転研削工具は、工業用ロボツトの
アームの先端にシリンダをもつて固定しておき、
使用時には工作物の硬度に対応する弾性とばね圧
となるようばね圧調整ナツトと気圧調整機構とを
操作して弾性保持部材内の圧縮空気量と押えばね
の圧縮量とを調節し、圧縮空気により膨出させた
弾性保持部材により回転研削工具本体の下方部を
所定の保持力で弾性的に保持させた状態とし、こ
の状態でアームを所定の速度で移動させつつ回転
研削工具本体の砥石車を回転させ、この砥石車で
工作物のばり取りや面取り作業を常法により順次
行つてゆけばよい。(Function) Such a rotary grinding tool is fixed with a cylinder at the end of the arm of an industrial robot.
During use, the amount of compressed air in the elastic holding member and the compression amount of the presser spring are adjusted by operating the spring pressure adjustment nut and the air pressure adjustment mechanism so that the elasticity and spring pressure correspond to the hardness of the workpiece. The lower part of the rotary grinding tool body is elastically held with a predetermined holding force by the bulging elastic holding member, and in this state, the arm is moved at a predetermined speed while the grinding wheel of the rotary grinding tool body is being held. You can deburr and chamfer the work piece using this grinding wheel in the usual manner.
（実施例）
次に、本考案を図示の実施例について詳細に説
明する。(Embodiments) Next, the present invention will be described in detail with reference to illustrated embodiments.
１は工業用ロボツトのアーム２の先端に取付け
られたシリンダーであり、その内部には中空ピス
トン３が昇降動自在に嵌挿され、該中空ピストン
３はシリンダー１の下部の凹部に設けられた押え
ばね４によつてシリンダー１に対し下向きに押圧
されているが、中空ピストン３の下端はシリンダ
ー１の下端に螺合されたばね圧調整ナツト５に当
接してばね圧調整自在となつていて中空ピストン
３は押えばね４に抗して上向きにのみ変位するこ
とができるようになつている。また、中空ピスト
ン３には回転研削工具本体７が遊嵌されていてそ
の上端は中空ピストン３の天井面に設けた球面軸
受６に保持されて回転研削工具本体７は上端を支
点として任意方向へ揺動できるようになつてお
り、さらに、中空ピストン３の下方部内壁には回
転研削工具本体７の下方部外壁を弾性的に抱持す
る軟質ゴム等よりなる膜状の弾性保持部材９がリ
ング状に囲設されて前記中空ピストン３の下方部
と該弾性保持部材９とをもつて空気室１０が形成
されており、該空気室１０には気圧調整機構１１
を介して圧縮空気が導入されるようになつてい
る。また、気圧調整機構１１は減圧弁１２と圧力
計１３とからなるもので、空気室１０の内圧を任
意の値に設定することができ、この減圧弁１２を
調節することにより圧縮空気式の弾性保持部材９
を調整自在に膨出させて回転研削工具本体７に対
する弾性的な保持力を可変としており、工作物の
硬度に応じて回転研削工具本体７の先端に取付け
られて内蔵するエアモータや電動モータで回転す
る砥石車１４と工作物との圧接力を変えることが
できるようになつている。 Reference numeral 1 denotes a cylinder attached to the tip of an arm 2 of an industrial robot, and a hollow piston 3 is fitted inside the cylinder so as to be movable up and down. The hollow piston 3 is pressed downward against the cylinder 1 by a spring 4, and the lower end of the hollow piston 3 comes into contact with a spring pressure adjustment nut 5 screwed onto the lower end of the cylinder 1, so that the spring pressure can be adjusted freely. 3 can only be displaced upwardly against the pressing spring 4. Further, a rotary grinding tool main body 7 is loosely fitted into the hollow piston 3, and its upper end is held by a spherical bearing 6 provided on the ceiling surface of the hollow piston 3, so that the rotary grinding tool main body 7 can be moved in any direction using the upper end as a fulcrum. Furthermore, a membrane-like elastic holding member 9 made of soft rubber or the like is provided on the lower inner wall of the hollow piston 3 to elastically hold the lower outer wall of the rotary grinding tool body 7. An air chamber 10 is formed by the lower part of the hollow piston 3 and the elastic holding member 9, and the air chamber 10 includes a pressure adjustment mechanism 11.
Compressed air is introduced through the The air pressure adjustment mechanism 11 is composed of a pressure reducing valve 12 and a pressure gauge 13, and can set the internal pressure of the air chamber 10 to an arbitrary value. By adjusting the pressure reducing valve 12, the compressed air type elastic Holding member 9
The elastic holding force against the rotary grinding tool main body 7 can be varied by adjusting the elasticity of the tool body 7, and it is attached to the tip of the rotary grinding tool main body 7 and rotated by a built-in air motor or electric motor depending on the hardness of the workpiece. The pressing force between the grinding wheel 14 and the workpiece can be changed.
このように構成されたものは、工作物の硬度に
対応するようばね圧調整ナツト５を回動させて押
えばね４のばね圧を調節するとともに、気圧調整
機構１１の減圧弁を操作して弾性保持部材９内の
圧縮空気量を調節して使用した場合、回転研削工
具本体７は上端部を中空ピストン３に揺動自在に
保持されているうえに圧縮空気により調整自在に
膨出している弾性保持部材９が回転研削工具本体
７の下方部外壁を所定の保持力で抱持しているか
ら、工作物の硬度に応じて弾性保持部材９の膨出
量を変えることができ、従つて、回転研削工具本
体７の砥石車１４は常に適正な圧接力に調整され
た押えばね４と弾性保持部材９の弾発力の下で工
作物のばりを切削することとなり、回転研削工具
本体７の砥石車１４が過大な圧接力により回転し
なくなつて切削不良を生じることもなく、さら
に、硬度の低い工作物であつても過大な圧接力に
よつて切削過多が生じることは全くないし、切削
不良や切削過多を防ぐために砥石車１４と工作物
の圧接力を小さくした場合に生じる加工時間の増
大もないものである。なお、中空ピストンに設け
られた弾性保持部材９は第２図に示す他の実施例
のように上下のリング１６により固定して空気室
を設けることなく空気孔１５より供給される圧縮
空気により弾性保持部材９を膨出させるようにし
てもよい。 With this structure, the spring pressure of the pressing spring 4 is adjusted by rotating the spring pressure adjustment nut 5 to correspond to the hardness of the workpiece, and the pressure reducing valve of the air pressure adjustment mechanism 11 is operated to adjust the elasticity. When used by adjusting the amount of compressed air in the holding member 9, the rotary grinding tool main body 7 has an upper end that is swingably held by the hollow piston 3, and an elastic member that is swollen adjustably by the compressed air. Since the holding member 9 holds the lower outer wall of the rotary grinding tool main body 7 with a predetermined holding force, the amount of expansion of the elastic holding member 9 can be changed depending on the hardness of the workpiece. The grinding wheel 14 of the rotary grinding tool main body 7 cuts the burr of the workpiece under the elastic force of the press spring 4 and the elastic holding member 9, which are always adjusted to an appropriate pressing force. The grinding wheel 14 will not stop rotating due to excessive pressure contact force, resulting in poor cutting.Furthermore, even with a workpiece with low hardness, excessive pressure force will not cause overcutting, and the cutting process will be improved. There is also no increase in machining time that would otherwise occur if the pressing force between the grinding wheel 14 and the workpiece is reduced in order to prevent defects or excessive cutting. Note that the elastic holding member 9 provided on the hollow piston is fixed by the upper and lower rings 16 as in the other embodiment shown in FIG. The holding member 9 may be made to bulge.
（考案の効果）
本考案は前記説明によつて明らかなように、対
象工作物がどのようなものでも回転研削工具本体
の砥石車を工作物に対して常に適正な圧接力をも
つて圧接することができて均一な仕上げ加工がで
きるものであり、しかも、ばね圧と空気圧の調整
はばね圧調整ナツトと気圧調整機構の操作でよい
から外部より簡単に行うことができる利点もあ
り、従来のこの種回転研削工具の問題点を解決し
たものとして実用的価値極めて大なものである。(Effects of the invention) As is clear from the above description, the present invention is capable of always pressing the grinding wheel of the rotary grinding tool body against the workpiece with an appropriate pressing force, no matter what the target workpiece is. Moreover, the spring pressure and air pressure can be adjusted easily by operating the spring pressure adjustment nut and the air pressure adjustment mechanism, so it has the advantage that it can be easily done from the outside, compared to conventional It has great practical value as it solves the problems of this type of rotary grinding tool.
第１図は本考案の実施例を示す一部切欠正面
図、第２図は本考案の他の実施例を示す要部の一
部切欠斜視図である。
１：シリンダー、２：中空ピストン、４：押え
ばね、５：ばね圧調整ナツト、６：球面軸受、
７：回転研削工具本体、９：圧縮空気式の弾性保
持部材、１１：気圧調整機構。
FIG. 1 is a partially cutaway front view showing an embodiment of the present invention, and FIG. 2 is a partially cutaway perspective view of main parts showing another embodiment of the present invention. 1: Cylinder, 2: Hollow piston, 4: Pressing spring, 5: Spring pressure adjustment nut, 6: Spherical bearing,
7: Rotary grinding tool body, 9: Compressed air type elastic holding member, 11: Air pressure adjustment mechanism.
Claims (1)
空ピストン３を下向きに弾発する押えばね４を介
在させて嵌挿してその下端を該シリンダー１の下
端に螺合させたばね圧調整ナツト５に当接支持さ
せ、また、中空ピストン３内にはモータにより回
転される砥石車１４を下端に備えた回転研削工具
本体７を遊嵌してその上端を中空ピストン３の天
井面に球面軸受６を介して揺動自在に保持させる
とともに、該回転研削工具本体７の下方部を前記
中空ピストン３の下方部内壁に囲設されて気圧調
整機構１１に接続された圧力調整自在な圧縮空気
式の弾性保持部材９をもつて抱持させたことを特
徴とする回転研削工具。 A hollow piston 3 is fitted into a cylinder 1 with a presser spring 4 interposed therebetween that urges the hollow piston 3 downward, and its lower end is abutted against and supported by a spring pressure adjusting nut 5 screwed onto the lower end of the cylinder 1. In addition, a rotary grinding tool main body 7 having a grinding wheel 14 rotated by a motor at the lower end is loosely fitted into the hollow piston 3, and its upper end is rocked to the ceiling surface of the hollow piston 3 via a spherical bearing 6. A compressed air type elastic holding member 9 is movably held, and the lower part of the rotary grinding tool main body 7 is surrounded by the inner wall of the lower part of the hollow piston 3 and is connected to the air pressure adjustment mechanism 11. A rotary grinding tool characterized in that it is held with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP668683U JPS59112553U (en) | 1983-01-20 | 1983-01-20 | rotary grinding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP668683U JPS59112553U (en) | 1983-01-20 | 1983-01-20 | rotary grinding tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59112553U JPS59112553U (en) | 1984-07-30 |
| JPS6331884Y2 true JPS6331884Y2 (en) | 1988-08-25 |
Family
ID=30138233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP668683U Granted JPS59112553U (en) | 1983-01-20 | 1983-01-20 | rotary grinding tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59112553U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7088806B2 (en) * | 2018-10-26 | 2022-06-21 | 株式会社スギノマシン | Deburring tool and deburring method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57194877A (en) * | 1981-05-22 | 1982-11-30 | Taiyo Chuki Kk | Detecting mechanism of thrust of grinding wheel |
-
1983
- 1983-01-20 JP JP668683U patent/JPS59112553U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57194877A (en) * | 1981-05-22 | 1982-11-30 | Taiyo Chuki Kk | Detecting mechanism of thrust of grinding wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59112553U (en) | 1984-07-30 |
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