JPS6368375A - Clamping method and device thereof - Google Patents
Clamping method and device thereofInfo
- Publication number
- JPS6368375A JPS6368375A JP20912386A JP20912386A JPS6368375A JP S6368375 A JPS6368375 A JP S6368375A JP 20912386 A JP20912386 A JP 20912386A JP 20912386 A JP20912386 A JP 20912386A JP S6368375 A JPS6368375 A JP S6368375A
- Authority
- JP
- Japan
- Prior art keywords
- tightening
- torque
- drive shaft
- stepping motor
- fastening member
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 4
- 238000001514 detection method Methods 0.000 description 7
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明はボルト或いはナツト等の締結部材を締付ける方
法及びその装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method and apparatus for tightening fastening members such as bolts or nuts.
(従来の技術)
ボルト或いはナツトによって部材同士を締付は固定する
には適切なトルクでもって締付けないと後に緩んだり、
分解できなくなる。このための装置として実開昭59−
17175号に開示されるものが知られている。(Prior art) When bolts or nuts are used to fasten members together, if they are not tightened with appropriate torque, they may come loose later.
It becomes impossible to disassemble it. As a device for this purpose,
The one disclosed in No. 17175 is known.
この装置は、圧縮空気によってベーンを回転せしめ、こ
のベーンの回転を駆動軸に伝達し、駆動軸の先端に取付
けたホルダーにて保持するボルト等を回転して締付け、
一定の締付はトルクに達したことを歪ゲージによって検
出し、この検出信号により圧縮空気の流路内に設けた弁
をソレノイドの作用で閉成しベーン及び駆動軸の回転を
停止するようにしたものである。This device uses compressed air to rotate the vane, transmits the rotation of the vane to the drive shaft, and then rotates and tightens the bolts held by the holder attached to the tip of the drive shaft.
A strain gauge detects when a certain tightening torque has been reached, and this detection signal causes a solenoid to close a valve installed in the compressed air flow path, stopping the rotation of the vane and drive shaft. This is what I did.
(発明が解決しようとする問題点)
上述した従来の締付は装置によると、ボルト等が座面に
当接しても、そのまま高速回転で締付けるため、トルク
検出応答誤差及びソレノイドバルブの応答dれが発生す
る。このため第4図の測定値のバラツキを表したグラフ
からも明らかなように締付は中の動トルク(表示トルク
)及び締付は後の静トルクのいずれも目標値に対する誤
差が大で、且つ締付は回転速度が高いためPJ擦低抵抗
一定せず、動トルクと静トルクとの差が大きくなる。(Problems to be Solved by the Invention) According to the conventional tightening device described above, even if the bolt etc. contacts the seat surface, it is still tightened at high speed rotation, resulting in torque detection response error and response d of the solenoid valve. occurs. For this reason, as is clear from the graph showing the dispersion of measured values in Figure 4, both the dynamic torque (displayed torque) during tightening and the static torque after tightening have large errors with respect to the target values. In addition, since the rotational speed of tightening is high, the PJ friction resistance is not constant, and the difference between dynamic torque and static torque becomes large.
(問題点を解決するための手段)
上記問題点を解決すべく本発明は、圧縮空気及びステッ
ピングモータを用い、これらを締付はトルクに応じて切
換えて駆動軸を回転せしめるようにした。(Means for Solving the Problems) In order to solve the above problems, the present invention uses compressed air and a stepping motor, and the tightening of these is switched according to the torque to rotate the drive shaft.
(作用)
締結部材の締付は開始から締結部材が座面に当接して目
標とする締付はトルクとなる前までは圧縮空気によって
駆動軸を回転せしめ1次いでトルク検出機構からの信号
によりステッピングモータを起動し、引き続き駆動軸を
回転せしめ、目標とする締付はトルクとなった時点でモ
ータ俺停止する。(Function) The tightening of the fastening member is performed by rotating the drive shaft with compressed air from the start until the fastening member contacts the seat surface and the target tightening torque is reached.Then, the drive shaft is rotated by compressed air and then stepped by a signal from the torque detection mechanism. Start the motor, continue to rotate the drive shaft, and stop the motor when the target tightening torque is reached.
(実施例)
以下に本発明の実施例を添付図面に基づいて説明する、
第1図は本発明に係る締付は装置の断面図であり、締付
は装置の外側ケース(1)は複数の筒状分割体(la)
、(lb)、(lc)、(ld)、(Is)、(10を
ボルトで軸方向に連結一体化し、このケース(1)内に
駆動軸(2)及び主軸(3)をベアリング(4)を介し
て回転自在に支承している。(Example) Examples of the present invention will be described below based on the accompanying drawings. cylindrical divided body (la)
, (lb), (lc), (ld), (Is), (10 are connected together in the axial direction with bolts, and the drive shaft (2) and main shaft (3) are mounted in the case (1) with the bearing (4). ) is rotatably supported.
これら駆動軸(2)及び主軸(3)は減速部(5)の部
分で連結され、駆動軸(2)の先端は筒状分割体(la
)から突出し、ボルト或いはナツト等の締結部材を保持
するソケット(ホルダー)を固着するための穴(6)を
形成している。また筒状分割体(1a)には歪計又はば
ねを用いたトルク検出装置(7)を取付けている。These drive shaft (2) and main shaft (3) are connected at the reduction part (5), and the tip of the drive shaft (2) is a cylindrical divided body (la
) is formed with a hole (6) for fixing a socket (holder) for holding a fastening member such as a bolt or nut. Further, a torque detection device (7) using a strain gauge or a spring is attached to the cylindrical divided body (1a).
一方筒状分割体(ld)内はベーン(8)を備えたエア
ーモータ部となっており、筒状分割体(le)の周囲に
設けた給気口(9)から取入れた圧縮空気を通路(lO
)を介してベーン(8)に供給し、ベーン(8)及び主
軸(3)を回転せしめるようにしている。On the other hand, inside the cylindrical divided body (ld) is an air motor section equipped with vanes (8), and the compressed air taken in from the air supply port (9) provided around the cylindrical divided body (le) is passed through the air motor section. (lO
) to rotate the vane (8) and the main shaft (3).
尚、筒状分割体(1d)には排気口(11)を形成して
いる。Note that an exhaust port (11) is formed in the cylindrical divided body (1d).
また、主軸(3)の後端部は筒状分割体(le)内に臨
み、膜状分割体(1f)にはステッピングモータ(12
)が取付けられ、このステッピングモータ(12)の軸
と前記主軸(3)の後端部とはワンウェイクラッチ(1
3)にて連結されている。即ち、ワンウェイクラッチ(
13)はキー(14)にて主軸(3)に固着されるクラ
ッチ板(15)と、キー(18)にてステッピングモー
タ(12)の軸に固着されるクラッチ板(17)とから
なり、主軸(3)がエアーモータにて回転してもステッ
ピングモータ(12)は回転しないようになっている。The rear end of the main shaft (3) faces into the cylindrical divided body (le), and the membrane divided body (1f) is equipped with a stepping motor (12
) is attached, and the shaft of this stepping motor (12) and the rear end of the main shaft (3) are connected to the one-way clutch (1
3) are connected. That is, one-way clutch (
13) consists of a clutch plate (15) fixed to the main shaft (3) with a key (14), and a clutch plate (17) fixed to the shaft of the stepping motor (12) with a key (18), Even if the main shaft (3) is rotated by the air motor, the stepping motor (12) does not rotate.
また第2図に示すように、トルク検出装置(7)によっ
て検出したトルク値は増幅器(18)にて増幅されて比
較器(19)に入力する。そして比較器(19)には予
め3基準値(T+)、(T2)、(T3)が入力されて
おり、これらの基準値と測定値とを比較することで第3
図に示す如き締付けを行う。Further, as shown in FIG. 2, the torque value detected by the torque detection device (7) is amplified by an amplifier (18) and input to a comparator (19). Three reference values (T+), (T2), and (T3) are input in advance to the comparator (19), and by comparing these reference values and the measured value, the third
Tighten as shown in the figure.
即ち、締付は開始から目標とする締付はトルク値(T3
)の約80%のトルク値(T1)となるまではエアーモ
ータによって高速(250r、p、m、)で締付けを行
う、そしてトルク検出装置(7)による検出値が基準値
(T+)となったならば比較器(18)からの信号によ
り減速部(5)を介して高速回転から低速回転(20〜
50 r、p、m、)に切換え、更に目標とする締付は
トルク値(T3)の90〜95%の基準値(T2)とな
ったならば比較器(18)からの信号によりエアーモー
タへの圧縮空気の供給を遮断するとともにステッピング
モータ(12)を回転(3〜1 r、p、i、)せしめ
、このステッピングモータ(12)によって目標とする
締付はトルク値(T3)となるまでボルト等の締結部材
を継続して締付ける。そして、トルク値(T3)に達し
たならばステッピングモータ(12)を停止し、この時
点のトルク値を表示する。In other words, from the start of tightening, the target tightening is achieved by the torque value (T3
Tightening is performed at high speed (250r, p, m,) by the air motor until the torque value (T1) of about 80% of ) is reached, and the value detected by the torque detection device (7) becomes the reference value (T+). If it is, the signal from the comparator (18) will change the speed from high speed rotation to low speed rotation (20~
50 r, p, m,), and when the target tightening reaches the reference value (T2), which is 90 to 95% of the torque value (T3), the air motor is activated by the signal from the comparator (18). At the same time, the stepping motor (12) is rotated (3 to 1 r, p, i,), and the stepping motor (12) achieves the target tightening torque value (T3). Continuously tighten fastening members such as bolts until When the torque value (T3) is reached, the stepping motor (12) is stopped and the torque value at this point is displayed.
(発明の効果)
以上に説明したように本発明によれば、電気的に瞬時に
停止し得るとともに、慣性力の影響を受けないステッピ
ングモータによって最終締付けを行うようにしたので第
4図の実線に示すように目標値とのバラツキが小さくな
り、またステッピングモータによれば3〜1 r、p、
m、と超低回転であり且つ目標値に近づくにつれ管理中
が狭くなり、目標値でロックし停止(瞬時)する、そし
てステッピングモータ停止時のトルクを表示することで
静トルクに略等しいトルクを表示することができる。(Effects of the Invention) As explained above, according to the present invention, the final tightening is performed by a stepping motor that can be electrically stopped instantaneously and is not affected by inertial force, so the solid line in Fig. 4 As shown in , the variation with the target value becomes smaller, and according to the stepping motor, 3 to 1 r, p,
m, the rotation is extremely low, and as it approaches the target value, the control range narrows, and it locks at the target value and stops (instantly), and by displaying the torque when the stepping motor stops, the torque is approximately equal to the static torque. can be displayed.
第1図は本発明に係る締付は装置の断面図、第2図は制
御回路の概略図、第3図は締付はトルクと時間との関係
を示すグラフ、第4図は締付はトルクのバラツキを示す
グラフである。
尚、図面中(1)はケース、(2)は駆動軸、(3)は
主軸、(7)はトルク検出装量、(8)はベーン、(1
2)はステー、ピングモータ、(13)はワンウェイク
ラッチ(13)である。Figure 1 is a sectional view of the tightening device according to the present invention, Figure 2 is a schematic diagram of the control circuit, Figure 3 is a graph showing the relationship between torque and time for tightening, and Figure 4 is a diagram showing the relationship between tightening and time. It is a graph showing variations in torque. In the drawing, (1) is the case, (2) is the drive shaft, (3) is the main shaft, (7) is the torque detection amount, (8) is the vane, and (1) is the main shaft.
2) is a stay, a ping motor, and (13) is a one-way clutch (13).
Claims (4)
結部材を締付ける方法において、前記締結部材の締付け
は締付け開始から所定トルクまでは圧気源からの空気で
駆動軸を回転せしめることによって行い、この後所定ト
ルクを超え目標とする締付けトルクまではステッピング
モータで駆動軸を回転せしめることで行うようにしたこ
とを特徴とする締付け方法。(1) In a method of tightening a fastening member such as a bolt or nut by rotating a drive shaft, the fastening member is tightened by rotating the drive shaft with air from a pressurized air source from the start of tightening to a predetermined torque, and then A tightening method characterized in that exceeding a predetermined torque and reaching a target tightening torque is achieved by rotating a drive shaft with a stepping motor.
結部材を締付ける装置において、この装置は圧気源から
の空気で駆動軸を回転せしめるベーンと、締結部材の締
付けトルクを検出する機構を備えるとともに、駆動軸の
一端はステッピングモータに連結されていることを特徴
とする締付け装置。(2) A device that tightens a fastening member such as a bolt or nut by rotating a drive shaft, this device includes a vane that rotates the drive shaft using air from a pressure source, and a mechanism that detects the tightening torque of the fastening member. A tightening device characterized in that one end of the drive shaft is connected to a stepping motor.
介して駆動軸に連結されていることを特徴とする特許請
求の範囲第2項記載の締付け装置。(3) The tightening device according to claim 2, wherein the stepping motor is connected to a drive shaft via a one-way clutch.
要素としていることを特徴とする特許請求の範囲第2項
記載の締付け装置。(4) The tightening device according to claim 2, wherein the torque detecting mechanism includes a strain gauge or a spring as a component.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61209123A JPH0725038B2 (en) | 1986-09-05 | 1986-09-05 | Tightening device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61209123A JPH0725038B2 (en) | 1986-09-05 | 1986-09-05 | Tightening device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6368375A true JPS6368375A (en) | 1988-03-28 |
JPH0725038B2 JPH0725038B2 (en) | 1995-03-22 |
Family
ID=16567666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61209123A Expired - Fee Related JPH0725038B2 (en) | 1986-09-05 | 1986-09-05 | Tightening device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0725038B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008032708A1 (en) * | 2006-09-15 | 2008-03-20 | Max Co., Ltd. | Hand-held tool |
JP2014054704A (en) * | 2012-09-13 | 2014-03-27 | Yutani:Kk | Fastening tool |
CN114323375A (en) * | 2021-05-12 | 2022-04-12 | 国网山西省电力公司电力科学研究院 | GIS basin-type insulator flange stress detection method and system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5511847U (en) * | 1978-07-07 | 1980-01-25 | ||
JPS55150978A (en) * | 1979-05-07 | 1980-11-25 | Nitto Seiko Kk | Screw clamping device |
JPS61109667A (en) * | 1984-11-02 | 1986-05-28 | 本田技研工業株式会社 | Bolt screwing machine |
-
1986
- 1986-09-05 JP JP61209123A patent/JPH0725038B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5511847U (en) * | 1978-07-07 | 1980-01-25 | ||
JPS55150978A (en) * | 1979-05-07 | 1980-11-25 | Nitto Seiko Kk | Screw clamping device |
JPS61109667A (en) * | 1984-11-02 | 1986-05-28 | 本田技研工業株式会社 | Bolt screwing machine |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008032708A1 (en) * | 2006-09-15 | 2008-03-20 | Max Co., Ltd. | Hand-held tool |
JP2008068376A (en) * | 2006-09-15 | 2008-03-27 | Max Co Ltd | Hand-held tool |
JP2014054704A (en) * | 2012-09-13 | 2014-03-27 | Yutani:Kk | Fastening tool |
CN114323375A (en) * | 2021-05-12 | 2022-04-12 | 国网山西省电力公司电力科学研究院 | GIS basin-type insulator flange stress detection method and system |
Also Published As
Publication number | Publication date |
---|---|
JPH0725038B2 (en) | 1995-03-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |