JPH055635B2 - - Google Patents
Info
- Publication number
- JPH055635B2 JPH055635B2 JP57176081A JP17608182A JPH055635B2 JP H055635 B2 JPH055635 B2 JP H055635B2 JP 57176081 A JP57176081 A JP 57176081A JP 17608182 A JP17608182 A JP 17608182A JP H055635 B2 JPH055635 B2 JP H055635B2
- Authority
- JP
- Japan
- Prior art keywords
- polishing
- contact pressure
- workpiece
- polished
- polishing head
- 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
- 238000005498 polishing Methods 0.000 claims description 116
- 239000011888 foil Substances 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 11
- 238000003801 milling Methods 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/14—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明はタービンブレードの自動研摩装置に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an automatic polishing device for turbine blades.
タービンブレードの研摩は、カツタによつて粗
仕上げした面を平滑ならしめるために行なわれる
が、粗仕上のカツタマークの方向と研摩方向との
関係について技術的制約を受ける。
Turbine blades are polished to smooth the surface rough-finished with a cutter, but there are technical restrictions on the relationship between the direction of the cutter mark on the rough-finish finish and the polishing direction.
第１図及び第２図はカツタマークの方向を表わ
した説明図で、第１図はサーキユラーミリングに
おけるカツタマークの形状及び方向を示し、第２
図はスイープミリングにおけるカツタマークの形
状及び方向を示している。両図とも、仮想線は仕
上げ形状を表わしており、ハツチングを付した部
分は仕上代である。両図はカツタマークを明瞭に
示すために凹凸を拡大して描いてある。 Figures 1 and 2 are explanatory diagrams showing the direction of the cutter mark. Figure 1 shows the shape and direction of the cutter mark in circular milling, and the second figure shows the shape and direction of the cutter mark in circular milling.
The figure shows the shape and direction of cutter marks in sweep milling. In both figures, the imaginary line represents the finished shape, and the hatched area is the finishing allowance. In both figures, the unevenness has been enlarged to clearly show the cutter mark.
第３図は前述のサーキユラーミリングを施した
タービンブレードを従来形の研摩装置で研摩して
いる状態の１例を示し、１０は被加工物、１１は
カツタ切削面、１３は最終仕上面である。この例
ではベルト研摩装置を用いており、２０はコンタ
クトホイール、２１はモータプーリ、２２はアイ
ドラプーリ、２５は研摩ベルトである。 Figure 3 shows an example of a turbine blade subjected to the above-mentioned circular milling being polished using a conventional polishing device, where 10 is the workpiece, 11 is the cut surface, and 13 is the final finished surface. be. In this example, a belt polishing device is used, and 20 is a contact wheel, 21 is a motor pulley, 22 is an idler pulley, and 25 is a polishing belt.
第４図は上記の研摩状態を側方から見たところ
を描いたもので、１２はカツタマークの嶺線であ
る。このような状態で、カツタ切削面１１と最終
仕上面１３とが相似形であり、コンタクトホイー
ル２０及び研摩ベルト２５を矢印Ａのごとく嶺線
１２とほぼ直角方向に送る場合は自己倣い研摩に
よつて精度よく仕上げることができる。 FIG. 4 depicts the above-mentioned polished state viewed from the side, and 12 is the ridge line of the cutter mark. In this state, if the cut surface 11 and the final finished surface 13 are similar in shape and the contact wheel 20 and abrasive belt 25 are fed in a direction substantially perpendicular to the ridge line 12 as shown by arrow A, self-copying polishing is used. It can be finished with high precision.
しかし、上述の研摩装置を用いて第５図のよう
にスイープミリングを施した切削面を研摩すると
最終仕上面１３と一致するように自己倣い研摩す
ることが困難である。その理由は、第６図に示す
ごとく、多数のカツタマーク嶺線１２の最終仕上
面１３に対する高さ寸法h1，h2，h3が必ずしも一
定でないからである。その上、コンタクトホイー
ル２０がカツタ切削面の溝１４に入つたとき谷部
のみが研摩されてピーク部が研摩されないという
不具合もある。このため、従来、上記第５図のよ
うにスイープミリング切削面を研摩する際には予
め手作業によりカツタマークのスムージングを行
なう必要があり、多大の労力を要するのみでなく
高度の熟練を必要とし、製造コスト上昇の要因を
なしている。 However, when the above-mentioned polishing apparatus is used to polish a cut surface that has been subjected to sweep milling as shown in FIG. 5, it is difficult to perform self-imitating polishing to match the final finished surface 13. The reason for this is that, as shown in FIG. 6, the height dimensions h 1 , h 2 , h 3 of the many cutter mark ridge lines 12 relative to the final finished surface 13 are not necessarily constant. Furthermore, when the contact wheel 20 enters the groove 14 on the cutting surface of the cutter, only the valley portions are polished, and the peak portions are not polished. For this reason, conventionally, when polishing the cut surface of sweep milling as shown in Fig. 5 above, it was necessary to smooth the cutter marks manually in advance, which not only required a great deal of labor but also required a high degree of skill. This is a factor that increases manufacturing costs.
本発明は上述の事情に鑑みて為され、例えばス
イープミリング切削を施したタービンブレード素
材のごとく、翼長方向に平行なカツターマークを
有する被加工物を高精度、高能率で自動的に研摩
し得る装置を提供することを目的とする。
The present invention has been made in view of the above-mentioned circumstances, and is capable of automatically polishing a workpiece having cutter marks parallel to the blade span direction with high precision and high efficiency, such as a turbine blade material subjected to sweep milling. The purpose is to provide a device that can
次に、本発明の原理を第７図及び第８図を参照
しつつ説明する。第７図において１９は被加工物
を研摩するために支承した場合の回転軸であり、
１２はカツタマークの嶺線、１７は谷線である。
第８図は横断面の一部を拡大した図である。
Next, the principle of the present invention will be explained with reference to FIGS. 7 and 8. In FIG. 7, 19 is a rotating shaft when the workpiece is supported for polishing.
12 is the ridge line of the cutter mark, and 17 is the valley line.
FIG. 8 is a partially enlarged cross-sectional view.
ブレードのねじれ、ブレードの断面形状の変化
などの影響により、各嶺線１２の高さh1，h2，h3
は不揃いであるが、最終仕上面１３に対する谷線
１７の高さＨはほぼ均一であり、従つて溝底面１
５は最終仕上面１３に対して相似形をなしてい
る。又、谷線１７はブレードの回転中心線１９に
対して通常、長手方向にずれを生じない。 The height h 1 , h 2 , h 3 of each ridge line 12 may vary due to the twist of the blade, changes in the cross-sectional shape of the blade, etc.
are uneven, but the height H of the valley line 17 with respect to the final finished surface 13 is almost uniform, so the groove bottom surface 1
5 has a similar shape to the final finished surface 13. Further, the trough line 17 usually does not deviate in the longitudinal direction with respect to the rotation center line 19 of the blade.
以上のようなスイープミリング粗仕上面の特性
に着目し、第９図に示すようにコンタクトホイー
ル２０の軸心Ｂを嶺線１２と直角方向とし、矢印
Ａのように嶺線に沿つてその上を送ると、カツタ
ホイールがカツタマークの溝内に入りこまずに効
率よく研摩できる。 Focusing on the characteristics of the rough finished surface by sweep milling as described above, the axis B of the contact wheel 20 is set in a direction perpendicular to the ridge line 12 as shown in FIG. By feeding the cutter wheel, the cutter wheel does not get into the groove of the cutter mark, allowing efficient polishing.
上記の原理に基づいて前述の目的を達成するた
め、本発明のタービンブレード自動研摩装置は、
接触圧調節手段を備えた研摩ヘツド、並びに回転
手段と送り手段とを備えた被加工物支承テーブル
よりなる自動研摩装置において、前記研摩ヘツド
は、これをベルト研摩ヘツドとし、該ベルト研摩
ヘツドに有するコンタクトホイルの外周部形状を
前記被加工物の被研摩面に応じて変形せしめるた
め、外周部の少なくとも一部分を柔軟な円筒状の
部材で構成すると共に、該円筒状部材内に流体圧
を連通せしめる手段を設け、かつ前記コンタクト
ホイルをその回転軸心が前記被加工物の粗仕上げ
カツターマークの嶺線に対し直角方向に位置して
回転せしめる回転手段と、該コンタクトホイルを
前記嶺線にそうて送る送り手段とを設け、かつ前
記研摩ヘツドに前記被研摩面の傾きを検出するギ
ヤツプセンサと研摩接触圧検出器と、前記ギヤツ
プセンサの出力信号に基いて前記被加工物支承テ
ーブルの回転手段を制御するとともに、前記研摩
接触圧検出器の出力信号に基いて研摩接触圧を制
御する制御手段とを設けたことを特徴とする。 In order to achieve the above object based on the above principle, the turbine blade automatic polishing device of the present invention comprises:
In an automatic polishing device comprising a polishing head equipped with a contact pressure adjusting means and a workpiece support table equipped with a rotation means and a feeding means, the polishing head is a belt polishing head, and the belt polishing head has In order to deform the shape of the outer circumference of the contact foil according to the surface to be polished of the workpiece, at least a portion of the outer circumference is constituted by a flexible cylindrical member, and fluid pressure is communicated within the cylindrical member. rotating means for rotating the contact foil such that the rotation axis thereof is located in a direction perpendicular to the ridge line of the rough finishing cutter mark of the workpiece; a gap sensor for detecting the inclination of the surface to be polished and a polishing contact pressure detector in the polishing head; and a rotation means for the workpiece support table is controlled based on an output signal of the gap sensor. In addition, the present invention is characterized by further comprising a control means for controlling the polishing contact pressure based on the output signal of the polishing contact pressure detector.
また接触圧調節手段を備えた研摩ヘツド、並び
に回転手段と送り手段とを備えた被加工物支承テ
ーブルよりなる自動研摩装置において、前記研摩
ヘツドは、これをベルト研摩ヘツドとし、該ベル
ト研摩ヘツドに有するコンタクトホイルの外周部
形状を前記被加工物の被研摩面に応じて変形せし
めるため、外周部の少なくとも一部分を柔軟な円
筒状の部材で構成すると共に、該円筒状部材内に
流体圧を連通せしめる手段を設け、かつ前記コン
タクトホイルをその回転軸心が前記被加工物の粗
仕上げカツターマークの嶺線に対し直角方向に位
置して回転せしめる回転手段と、該コンタクトホ
イルを前記嶺線にそうて送る送り手段とを設け、
かつ前記研摩ヘツドに前記被研摩面の傾きを検出
するギヤツプセンサと前記被研摩面の研摩幅方向
に複数個設置した研摩接触圧検出器と、前記研摩
ヘツドを前記被研摩面の研摩幅方向に移動せしめ
る送り手段と、前記ギヤツプセンサの出力信号に
基いて前記被加工物支承テーブルの回転手段を制
御するとともに前記研摩接触圧検出器の出力信号
に基いて研摩接触圧ならびに前記被加工物の粗仕
上げカツターアークの嶺線と前記研摩幅の中央と
が一致するように前記研摩幅方向送り手段の移動
を制御する制御手段を設けたことを特徴とする。 Further, in an automatic polishing device comprising a polishing head equipped with a contact pressure adjusting means and a workpiece supporting table equipped with a rotation means and a feeding means, the polishing head is a belt polishing head, and the polishing head is a belt polishing head. In order to deform the shape of the outer circumference of the contact foil according to the surface to be polished of the workpiece, at least a portion of the outer circumference is constituted by a flexible cylindrical member, and fluid pressure is communicated within the cylindrical member. a rotating means for rotating the contact foil so that its rotational axis is located in a direction perpendicular to the ridge line of the rough finishing cutter mark of the workpiece; Then, a means of sending is provided,
and a gap sensor for detecting the inclination of the surface to be polished in the polishing head, a plurality of polishing contact pressure detectors installed in the width direction of the polishing surface of the surface to be polished, and moving the polishing head in the width direction of the polishing surface of the surface to be polished. and controlling the rotation means of the workpiece support table based on the output signal of the gap sensor, and controlling the polishing contact pressure and the rough finishing cutter arc of the workpiece based on the output signal of the polishing contact pressure detector. The present invention is characterized in that a control means is provided for controlling the movement of the polishing width direction feeding means so that the ridge line of the polishing width coincides with the center of the polishing width.
次に、本発明の一実施例を第１０図乃至第１２
図について説明する。
Next, one embodiment of the present invention is shown in FIGS. 10 to 12.
The diagram will be explained.
第１０図は本実施例のタービンブレード自動研
摩装置の概要的な構成を示す正面図である。５０
は研摩ヘツドで、モータプーリ２１、コンタクト
ホイール２０および研摩ベルト２５を備えてい
る。６１は研摩接触圧力の調整シリンダ、５１は
研摩ヘツドのベルト幅方向の送り手段、３７はベ
ルト幅方向送り用のモータである。一方、５２は
被加工物の回転手段で、３４は回転用のモータ、
５３はテーブルである。上記のテーブル５３はテ
ーブル送り手段５４によりベツド５５上を矢印
Ｃ，C′方向に送られる構造である。 FIG. 10 is a front view showing the general configuration of the turbine blade automatic polishing device of this embodiment. 50
is a polishing head comprising a motor pulley 21, a contact wheel 20 and a polishing belt 25. 61 is a polishing contact pressure adjustment cylinder, 51 is a means for feeding the polishing head in the belt width direction, and 37 is a motor for feeding the belt in the width direction. On the other hand, 52 is a means for rotating the workpiece, 34 is a rotation motor,
53 is a table. The above-mentioned table 53 has a structure in which it is fed by a table feeding means 54 over a bed 55 in the directions of arrows C and C'.
３２は自動制御装置で、研摩接触圧力調整シリ
ンダ６１、研摩ヘツドの送りモータ３７、および
被加工物回転用モータ３４の作動を制御してい
る。 Reference numeral 32 denotes an automatic control device that controls the operations of the polishing contact pressure adjustment cylinder 61, the polishing head feed motor 37, and the workpiece rotation motor 34.
上記の制御は、第１１図及び第１２図について
後に詳述するように、コンタクトホイール２０に
隣接して設置したギヤツプセンサ３０の信号出力
と、コンタクトホイ−ル２０内に埋設した接触圧
検出器３１の信号出力と、接触圧設定装置３３の
指容信号とに基づいて行なわれるように構成して
ある。 The above control is performed using the signal output of a gap sensor 30 installed adjacent to the contact wheel 20 and the contact pressure detector 31 embedded in the contact wheel 20, as will be described in detail later with reference to FIGS. 11 and 12. This is configured to be performed based on the signal output of the contact pressure setting device 33 and the finger pressure signal of the contact pressure setting device 33.
第１１図は上述の実施例の制御系統図である。
コンタクトホイール２０の回転軸（中心線で示
す）２０ａの両端付近に１対のギヤツプセンサ３
０を設け、溝底面１５までの距離を検出してその
出力信号を自動制御装置３２に入力させる。 FIG. 11 is a control system diagram of the above-described embodiment.
A pair of gap sensors 3 are installed near both ends of the rotation shaft (indicated by the center line) 20a of the contact wheel 20.
0 is provided, the distance to the groove bottom surface 15 is detected, and the output signal is inputted to the automatic control device 32.
自動制御装置３２は上記の出力信号に基づいて
１対のギヤツプセンサ３０の出力が等しくなるよ
うに被加工物支承手段の回転用モータ３４を作動
させる。これにより、溝底面１５がコンタクトホ
イール２０の回転軸２０ａに対して平行になり、
従つて最終仕上面１３も回転軸２０ａに平行とな
る。このため高精度の自己倣い研摩が可能とな
る。 The automatic control device 32 operates the rotation motor 34 of the workpiece support means based on the above output signal so that the outputs of the pair of gap sensors 30 are equal. As a result, the groove bottom surface 15 becomes parallel to the rotation axis 20a of the contact wheel 20,
Therefore, the final finished surface 13 is also parallel to the rotation axis 20a. This enables highly accurate self-copying polishing.
また、本実施例においては、コンタクトホイー
ル２０の幅方向の中央部に１対の接触圧検出器３
１を埋設し、その出力信号を自動制御装置３２に
入力させる。自動制御装置３２は１対の接触圧検
出器の出力信号が等しくなるように研摩ヘツド送
りモータ３７を作動させる。これによりコンタク
トホイール２０の幅方向の中央が被加工物のカツ
タマークの嶺線１２に正対するように自動制御さ
れ、正確な自己倣い研摩作動を自動的に行うこと
が容易になる。 Further, in this embodiment, a pair of contact pressure detectors 3 are provided at the center of the contact wheel 20 in the width direction.
1 is buried and its output signal is input to the automatic control device 32. The automatic controller 32 operates the polishing head feed motor 37 so that the output signals of the pair of contact pressure detectors are equal. Thereby, the center of the contact wheel 20 in the width direction is automatically controlled so as to directly face the ridge line 12 of the cutter mark on the workpiece, and it becomes easy to automatically perform accurate self-copying polishing operation.
第１２図は上記の実施例における制御作動の詳
細な説明図で、自動制御装置３２の構成の詳細も
示してある。即ち、自動制御装置３２はギヤツプ
差演算回路７１と、圧力差演算回路７２と、平均
圧力算出回路７３と、比較回路７４と符号変換器
７５とよりなり、接触圧設定装置３３を付設して
ある。１対のギヤツプセンサ３０を説明の便宜上
図示のごとくそれぞれHA，HBと名付け、その
出力信号をギヤツプ差演算回路７１に入力せし
め、双方の信号出力差HA，HBを演算せしめる。 FIG. 12 is a detailed explanatory diagram of the control operation in the above embodiment, and also shows details of the configuration of the automatic control device 32. That is, the automatic control device 32 includes a gap difference calculation circuit 71, a pressure difference calculation circuit 72, an average pressure calculation circuit 73, a comparison circuit 74, and a sign converter 75, and is provided with a contact pressure setting device 33. . For convenience of explanation, the pair of gap sensors 30 are respectively named HA and HB as shown in the figure, and their output signals are inputted to a gap difference calculation circuit 71 to calculate the signal output difference HA and HB between the two.
図示のＤは被制御機器部分である。３４は既述
の被加工物回転モータ、３７は既述の研摩ヘツド
の研摩幅方向送りモータである。７６は研摩ヘツ
ドの上下動案内リンク、６１は既述の接触圧調節
シリンダ、３６は上記シリンダの油圧調整バルブ
である。 D in the figure is a controlled device portion. 34 is the previously described workpiece rotation motor, and 37 is the previously described polishing width direction feed motor of the polishing head. 76 is a vertical movement guide link for the polishing head, 61 is the contact pressure adjustment cylinder mentioned above, and 36 is a hydraulic pressure adjustment valve for the cylinder.
ギヤツプ差影算回路７１の演算結果に基づき、
HA−HBの値を０ならしめるように被加工物回
転モータ３４を制御するように構成する。 Based on the calculation results of the gap difference calculation circuit 71,
The workpiece rotation motor 34 is configured to be controlled so as to make the value of HA-HB equal to 0.
また、前述の１対の接触圧検出器３１を、説明
の便宜上図示のごとくＡ，Ｂと名付ける。これら
の出力信号は圧力差演算回路７２および平均圧力
算出回路７３とに入力せしめる。 Further, the pair of contact pressure detectors 31 described above are named A and B as shown in the drawing for convenience of explanation. These output signals are input to a pressure difference calculation circuit 72 and an average pressure calculation circuit 73.
圧力差演算回路７２は圧力差を０ならしめるよ
うに送りモータ３７を作動させ、送りネジ３７ａ
を介して研摩ヘツドを研摩幅方向に送り、コンタ
クトホイール２０をカツタマークの嶺線上に位置
せしめるように自動制御する。 The pressure difference calculation circuit 72 operates the feed motor 37 so as to make the pressure difference zero, and the feed screw 37a
The polishing head is sent in the polishing width direction through the contact wheel 20, and the contact wheel 20 is automatically controlled to be positioned on the ridge line of the cutter mark.
本実施例のように、タービンブレード自動研摩
装置の研摩ヘツドを、研摩幅方向に移動せしめる
送り手段を備えたものとし、かつ、前記の接触圧
検出器を研摩幅方向に複数個設置してその検出信
号に基づいて研摩ヘツドの幅方向送り手段を制御
して、被加工物の粗仕上げカツタマークの嶺線と
研摩幅の中央とを自動的に一致せしめ得るように
構成すると、該研摩ヘツドが自動的にカツタマー
クの嶺線に沿つて研摩を行なうので、高能率の自
動操作が可能となる。 As in this embodiment, the polishing head of an automatic turbine blade polishing device is equipped with a feeding means for moving in the polishing width direction, and a plurality of the contact pressure detectors are installed in the polishing width direction. If the polishing head is configured to automatically match the ridge line of the rough finishing cutter mark on the workpiece with the center of the polishing width by controlling the width direction feeding means of the polishing head based on the detection signal, the polishing head can automatically Since polishing is performed along the ridge line of the cutter mark, highly efficient automatic operation is possible.
また、平均圧力算出回路７３は１対の接触圧検
出器３１の出力信号の平均値を算出して比較回路
７４に出力し、この比較回路は上記の算出値と接
触圧設定装置３３に予め与えられた値とを比較し
て、その差が０となるように接触圧調節シリンダ
６１の圧力制御弁３６を制御する。これにより、
研摩ヘツドの研摩接触圧力は予め設定された値を
保つよう自動的に制御される。 Further, the average pressure calculation circuit 73 calculates the average value of the output signals of the pair of contact pressure detectors 31 and outputs it to the comparison circuit 74. The pressure control valve 36 of the contact pressure adjustment cylinder 61 is controlled so that the difference becomes zero. This results in
The abrasive contact pressure of the abrasive head is automatically controlled to maintain a preset value.
第１３図は本実施例のコンタクトホイール２０
の拡大断面図である。 FIG. 13 shows the contact wheel 20 of this embodiment.
FIG.
コンタクトホイール２０の両端付近の外周面に
輪状の溝２０ａを形成してゴム製の円筒４１，４
１′をそれぞれ外嵌し、円筒の両端部をコンタク
トホイール２０の本体部分に気密に嵌着すると共
に、上記コンタクトホイール２０とゴム製円筒４
１，４１′それぞれとの当接面に連通する油孔４
０，４０′を穿つ。 Annular grooves 20a are formed on the outer peripheral surface near both ends of the contact wheel 20 to form rubber cylinders 41, 4.
1', and both ends of the cylinder are hermetically fitted to the main body of the contact wheel 20, and the contact wheel 20 and the rubber cylinder 4 are
Oil hole 4 communicating with the contact surface with each of 1 and 41'
Drill 0.40'.
本実施例のゴム製円筒４１は、適宜のテーパを
付してある。本発明における円筒状部材とは、本
例のごとく円錐面を含む意である。また、鼓状で
あつてもよい。 The rubber cylinder 41 of this embodiment has an appropriate taper. The cylindrical member in the present invention includes a conical surface as in this example. It may also be drum-shaped.
第１３図に示すゴム製円筒４１の内周部に連通
する油孔４０に別段の圧力を加えないときは、該
ゴム製円筒４１の外周面は円錐面をなしている。
また、ゴム製円筒４１′の内周面に連通する油孔
４０に圧力油Ｐを注入すると、該ゴム製円筒４
１′の外周面が外側に向かつて膨出する。 When no special pressure is applied to the oil hole 40 communicating with the inner circumferential portion of the rubber cylinder 41 shown in FIG. 13, the outer circumferential surface of the rubber cylinder 41 forms a conical surface.
Furthermore, when pressure oil P is injected into the oil hole 40 communicating with the inner peripheral surface of the rubber cylinder 41', the rubber cylinder 41'
The outer peripheral surface of 1' bulges outward.
両方の油孔４０，４０′に圧力を加えないとき
は、コンタクトホイール２０の全体的外周面は仮
想線Ｅのごとく太線胴状に凸面をなすので、第１
４図に示すごとくタービンブレードの凹面部分を
研摩するのに好適な形状となる。 When no pressure is applied to both oil holes 40, 40', the entire outer circumferential surface of the contact wheel 20 is convex in the shape of a thick line as shown by the imaginary line E.
As shown in Fig. 4, the shape is suitable for polishing the concave portion of the turbine blade.
また、両方の油孔４０，４０′に圧力油若しく
は圧縮空気を供給すると、ゴム製円筒４１，４
１′の外周が膨らみ、コンタクトホイール２０の
全体的外周面は仮想線Ｆのごとく鼓胴状に凹面を
なすので第１５図に示すごとくタービンブレード
の凸面部分を研摩するのに好適である。 Also, when pressure oil or compressed air is supplied to both oil holes 40, 40', the rubber cylinders 41, 4
The outer periphery of the contact wheel 1' is swollen, and the entire outer peripheral surface of the contact wheel 20 is concave in the shape of a drum, as shown by the imaginary line F, so that it is suitable for polishing the convex portion of a turbine blade, as shown in FIG.
本実施例のように、研摩ヘツドをベルト研摩装
置によつて構成し、かつ、コンタクトホイールの
外周部を柔軟な円筒状、乃至円錐状、若しくはこ
れに類似する形状の部材で構成し、この部材の内
周面に流体圧力を連通させる手段を設けると、被
研摩面の形状に応じてコンタクトホイール外周面
形状を変化させることができるので、変化のある
曲面を研摩するのに好適である。 As in this embodiment, the polishing head is constituted by a belt polishing device, and the outer periphery of the contact wheel is constituted by a flexible cylindrical, conical, or similar shaped member. Providing means for communicating fluid pressure to the inner peripheral surface of the contact wheel allows the outer peripheral surface shape of the contact wheel to be changed depending on the shape of the surface to be polished, which is suitable for polishing curved surfaces with variations.
以上説明した如く、本発明のタービンブレード
自動研摩装置は、研摩ヘツドは、これをベルト研
摩ヘツドとし、該ベルト研摩ヘツドに有するコン
タクトホイルの外周部形状を前記被加工物の被研
摩面に応じて変形せしめるため、外周部の少なく
とも一部分を柔軟な円筒状の部材で構成すると共
に、該円筒状部材内に流体圧を連通せしめる手段
を設け、かつ前記コンタクトホイルをその回転軸
心が前記被加工物の粗仕上げカツターマークの嶺
線に対し直角方向に位置して回転せしめる回転手
段と、該コンタクトホイルを前記嶺線にそうて送
る送り手段とを設け、かつ前記研摩ヘツドに前記
被研摩面の傾きを検出するギヤツプセンサと研摩
接触圧検出器と、前記ギヤツプセンサの出力信号
に基いて前記被加工物支承テーブルの回転手段を
制御するとともに、前記研摩接触圧検出器の出力
信号に基いて研摩接触圧を制御する制御手段とを
設けたことを特徴とし、また前記研摩ヘツドは、
これをベルト研摩ヘツドとし、該ベルト研摩ヘツ
ドに有するコンタクトホイルの外周部形状を前記
被加工物の被研摩面に応じて変形せしめるため、
外周部の少なくとも一部分を柔軟な円筒状の部材
で構成すると共に、該円筒状部材内に流体圧を連
通せしめる手段を設け、かつ前記コンタクトホイ
ルをその回転軸心が前記被加工物の粗仕上げカツ
ターマークの嶺線に対し直角方向に位置して回転
せしめる回転手段と、該コンタクトホイルを前記
嶺線にそうて送る送り手段とを設け、かつ前記研
摩ヘツドに前記被研摩面の傾きを検出するギヤツ
プセンサと前記被研摩面の研摩幅方向に複数個設
置した研摩接触圧検出器と、前記研摩ヘツドを前
記被研摩面の研摩幅方向に移動せしめる送り手段
と、前記ギヤツプセンサの出力信号に基いて前記
被加工物支承テーブルの回転手段を制御するとと
もに前記研摩接触圧検出器の出力信号に基いて研
摩接触圧ならびに前記被加工物の粗仕上げカツタ
ーアークの嶺線と前記研摩幅の中央とが一致する
ように前記研摩幅方向送り手段の移動を制御する
制御手段を設けたことを特徴としこれにより、コ
ンタクトホイルが翼長方向に平行なカツタマーク
を有する被加工物の上記カツタマークの溝内に入
らずに嶺線の上面になじみながら変形し、面圧を
一定にした状態で上記嶺線の上面にそうて自己倣
いをするので、被加工物を高精度かつ高能率で自
動的に研摩することができる。
As explained above, in the automatic turbine blade polishing apparatus of the present invention, the polishing head is a belt polishing head, and the outer peripheral shape of the contact foil provided in the belt polishing head is adjusted according to the surface to be polished of the workpiece. In order to deform the contact foil, at least a portion of the outer circumferential portion thereof is formed of a flexible cylindrical member, and a means for communicating fluid pressure is provided within the cylindrical member, and the contact foil is connected so that its rotation axis is located at the workpiece. a rotating means positioned perpendicularly to the ridge line of the rough finishing cutter mark and a feeding means for feeding the contact foil along the ridge line; A gap sensor and an abrasive contact pressure detector for detecting the inclination, and a rotation means for the workpiece support table is controlled based on the output signal of the gap sensor, and an abrasive contact pressure is controlled based on the output signal of the abrasive contact pressure detector. The polishing head is characterized by comprising: a control means for controlling the polishing head;
This is used as a belt polishing head, and in order to deform the outer peripheral shape of the contact foil included in the belt polishing head according to the surface to be polished of the workpiece,
At least a portion of the outer circumferential portion thereof is constituted by a flexible cylindrical member, and means for communicating fluid pressure is provided within the cylindrical member, and the contact foil is arranged such that its rotation axis is located at the rough finishing cut of the workpiece. a rotation means positioned perpendicularly to the ridge line of the target mark for rotation, and a feeding means for feeding the contact foil along the ridge line, and the polishing head detects the inclination of the surface to be polished. a gap sensor; a plurality of polishing contact pressure detectors installed in the polishing width direction of the surface to be polished; a feeding means for moving the polishing head in the polishing width direction of the surface to be polished; Controlling the rotation means of the workpiece support table and adjusting the polishing contact pressure based on the output signal of the polishing contact pressure detector so that the ridge line of the rough finishing cutter arc of the workpiece coincides with the center of the polishing width. is provided with a control means for controlling the movement of the polishing width direction feeding means, whereby the contact foil is not inserted into the groove of the cutter mark of the workpiece having the cutter mark parallel to the blade span direction, Since it deforms while conforming to the upper surface of the line, and self-imprints itself on the upper surface of the ridge line while keeping the surface pressure constant, the workpiece can be polished automatically with high precision and high efficiency.
第１図はサーキユラーミリング加工を施したタ
ービンブレード素材のカツタマークの説明図、第
２図はスイープミリング加工を施したタービンブ
レーバ素材のカツタマークの説明図、第３図は従
来形タービンブレード研摩装置による研摩作業状
態を説明するための正面図、第４図は同じく側面
図である。第５図及び第６図は従来形タービンブ
レード研摩装置の不具合の説明図、第７図乃至第
９図は本発明のタービンブレード自動研摩装置の
原理的説明図である。第１０図乃至第１２図は本
発明のタービンブレード自動研摩装置の一実施例
を示し、第１０図は概要的な正面図、第１１図は
制御系統の概要図、第１２図は制御系統の詳細図
である。第１３図は上記と異なる実施例における
コンタクトホイールの断面図、第１４図及び第１
５図は上記コンタクトホイールの作動説明図であ
る。
１０……被加工物、１１……カツタ切削面、１
２……カツタマークの嶺線、１３……最終仕上
面、１４……切削面溝、１５……同溝底面、１７
……同谷線、２０……コンタクトホイール、２１
……モータープーリ、２５……研摩ベルト、３０
……ギヤツプセンサ、３１……接触圧検出器、３
２……自動制御装置、３３……接触圧設定装置、
３４……被加工物回転モータ、３６……圧力調整
弁、３７……研摩ヘツドの研摩幅方向の送りモー
タ、４０，４０′……圧力供給用の油孔、４１，
４１′……ゴム製円筒、６１……接触圧調節シリ
ンダ。
Figure 1 is an explanatory diagram of a cutter mark on a turbine blade material subjected to circular milling processing, Figure 2 is an explanatory diagram of a cutter mark on a turbine blade material subjected to sweep milling processing, and Figure 3 is an illustration of a conventional turbine blade polishing device. FIG. 4 is a front view for explaining the polishing work state, and FIG. 4 is a side view. 5 and 6 are explanatory diagrams of malfunctions in the conventional turbine blade polishing device, and FIGS. 7 to 9 are diagrams illustrating the principle of the automatic turbine blade polishing device of the present invention. 10 to 12 show an embodiment of the turbine blade automatic polishing apparatus of the present invention, in which FIG. 10 is a schematic front view, FIG. 11 is a schematic diagram of the control system, and FIG. 12 is a schematic diagram of the control system. It is a detailed view. Fig. 13 is a sectional view of a contact wheel in an embodiment different from the above, Fig. 14 and Fig. 1
FIG. 5 is an explanatory diagram of the operation of the contact wheel. 10...Workpiece, 11...Katsuta cutting surface, 1
2... Ridge line of cutter mark, 13... Final finished surface, 14... Cutting surface groove, 15... Bottom surface of the same groove, 17
...Doya line, 20...Contact wheel, 21
... Motor pulley, 25 ... Abrasive belt, 30
... Gap sensor, 31 ... Contact pressure detector, 3
2... automatic control device, 33... contact pressure setting device,
34... Workpiece rotation motor, 36... Pressure regulating valve, 37... Feeding motor in the polishing width direction of the polishing head, 40, 40'... Oil hole for pressure supply, 41,
41'...Rubber cylinder, 61...Contact pressure adjustment cylinder.
Claims (1)
回転手段と送り手段とを備えた被加工物支承テー
ブルよりなる自動研摩装置において、前記研摩ヘ
ツドは、これをベルト研摩ヘツドとし、該ベルト
研摩ヘツドに有するコンタクトホイルの外周部形
状を前記被加工物の被研摩面に応じて変形せしめ
るため、外周部の少なくとも一部分を柔軟な円筒
状の部材で構成すると共に、該円筒状部材内に流
体圧を連通せしめる手段を設け、かつ前記コンタ
クトホイルをその回転軸心が前記被加工物の粗仕
上げカツターマークの嶺線に対し直角方向に位置
して回転せしめる回転手段と、該コンタクトホイ
ルを前記嶺線にそうて送る送り手段とを設け、か
つ前記研摩ヘツドに前記被研摩面の傾きを検出す
るギヤツプセンサと研摩接触圧検出器と、前記ギ
ヤツプセンサの出力信号に基いて前記被加工物支
承テーブルの回転手段を制御するとともに、前記
研摩接触圧検出器の出力信号に基いて研摩接触圧
制御する制御手段とを設けたことを特徴とするタ
ービンブレード自動研摩装置。 ２ 接触圧調節手段を備えた研摩ヘツド、並びに
回転手段と送り手段とを備えた被加工物支承テー
ブルよりなる自動研摩装置において、前記研摩ヘ
ツドは、これをベルト研摩ヘツドとし、該ベルト
研摩ヘツドに有するコンタクトホイルの外周部形
状を前記被加工物の被研摩面に応じて変形せしめ
るため、外周部の少なくとも一部分を柔軟な円筒
状の部材で構成すると共に、該円筒状部材内に流
体圧を連通せしめる手段を設け、かつ前記コンタ
クトホイルをその回転軸心が前記被加工物の粗仕
上げカツターマークの嶺線に対し直角方向に位置
して回転せしめる回転手段と、該コンタクトホイ
ルを前記嶺線にそうて送る送り手段とを設け、か
つ前記研摩ヘツドに前記被研摩面の傾きを検出す
るギヤツプセンサを前記被研摩面の研摩軸方向に
複数個設置した研摩接触圧検出器と、前記研摩ヘ
ツドを前記被研摩面の研摩幅方向に移動せしめる
送り手段と、前記ギヤツプセンサの出力信号に基
いて前記被加工物支承テーブルの回転手段を制御
するとともに前記研摩接触圧検出器の出力信号に
基いて研摩接触圧ならびに前記被加工物の粗仕上
げカツターマークの嶺線と前記研摩幅の中央とが
一致するように前記研摩幅方向送り手段の移動を
制御する制御手段を設けたことを特徴とするター
ビンブレード自動研摩装置。[Scope of Claims] 1. An automatic polishing device comprising a polishing head equipped with contact pressure adjusting means and a workpiece support table equipped with rotation means and feeding means, wherein the polishing head is configured as a belt polishing head. In order to deform the outer peripheral shape of the contact foil provided in the belt polishing head according to the surface to be polished of the workpiece, at least a portion of the outer peripheral portion is formed of a flexible cylindrical member, and the cylindrical member a rotating means for rotating the contact foil such that the rotational axis thereof is positioned perpendicularly to the ridge line of the rough finishing cutter mark of the workpiece; a feeding means for feeding the foil along the ridge line; a gap sensor and a polishing contact pressure detector for detecting the inclination of the surface to be polished; and a polishing contact pressure detector for detecting the inclination of the surface to be polished; An automatic turbine blade polishing apparatus comprising: a control means for controlling a rotation means of a support table, and a control means for controlling a polishing contact pressure based on an output signal of the polishing contact pressure detector. 2. In an automatic polishing device comprising a polishing head equipped with a contact pressure adjusting means and a workpiece support table equipped with a rotation means and a feeding means, the polishing head is a belt polishing head, and the polishing head is a belt polishing head. In order to deform the shape of the outer circumference of the contact foil according to the surface to be polished of the workpiece, at least a portion of the outer circumference is constituted by a flexible cylindrical member, and fluid pressure is communicated within the cylindrical member. a rotating means for rotating the contact foil so that its rotational axis is located in a direction perpendicular to the ridge line of the rough finishing cutter mark of the workpiece; a polishing contact pressure detector having a plurality of gap sensors installed in the polishing head in the direction of the polishing axis of the surface to be polished for detecting the inclination of the surface to be polished; A feeding means for moving the surface to be polished in the polishing width direction, a rotating means for the workpiece support table based on the output signal of the gap sensor, and a polishing contact pressure based on the output signal of the polishing contact pressure detector. and a control means for controlling the movement of the polishing width direction feeding means so that the ridge line of the rough finishing cutter mark of the workpiece coincides with the center of the polishing width. Polishing equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17608182A JPS5969260A (en) | 1982-10-08 | 1982-10-08 | Turbine blade automatic polishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17608182A JPS5969260A (en) | 1982-10-08 | 1982-10-08 | Turbine blade automatic polishing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5969260A JPS5969260A (en) | 1984-04-19 |
| JPH055635B2 true JPH055635B2 (en) | 1993-01-22 |
Family
ID=16007382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17608182A Granted JPS5969260A (en) | 1982-10-08 | 1982-10-08 | Turbine blade automatic polishing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5969260A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003094306A (en) * | 2001-09-25 | 2003-04-03 | Nihon Micro Coating Co Ltd | Polishing device for semiconductor wafer end face |
| JP5127524B2 (en) * | 2008-03-25 | 2013-01-23 | 株式会社東芝 | 3D curved surface processing apparatus and 3D curved surface processing method |
| US8070555B2 (en) * | 2008-11-03 | 2011-12-06 | General Electric Company | Visual feedback for airfoil polishing |
| JP5756378B2 (en) * | 2011-09-13 | 2015-07-29 | 株式会社総合車両製作所 | Belt polishing equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5221238A (en) * | 1975-08-13 | 1977-02-17 | Nippon Steel Corp | Flush butt welding process |
| JPS56107875A (en) * | 1980-01-22 | 1981-08-27 | Honda Motor Co Ltd | Work surface finishing machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5179091U (en) * | 1974-12-19 | 1976-06-22 |
-
1982
- 1982-10-08 JP JP17608182A patent/JPS5969260A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5221238A (en) * | 1975-08-13 | 1977-02-17 | Nippon Steel Corp | Flush butt welding process |
| JPS56107875A (en) * | 1980-01-22 | 1981-08-27 | Honda Motor Co Ltd | Work surface finishing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5969260A (en) | 1984-04-19 |
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