JP4093145B2 - 締付け工具 - Google Patents
締付け工具 Download PDFInfo
- Publication number
- JP4093145B2 JP4093145B2 JP2003301899A JP2003301899A JP4093145B2 JP 4093145 B2 JP4093145 B2 JP 4093145B2 JP 2003301899 A JP2003301899 A JP 2003301899A JP 2003301899 A JP2003301899 A JP 2003301899A JP 4093145 B2 JP4093145 B2 JP 4093145B2
- Authority
- JP
- Japan
- Prior art keywords
- tightening
- torque
- motor
- torque fluctuation
- fluctuation rate
- 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
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- 230000007257 malfunction Effects 0.000 claims description 41
- 230000008859 change Effects 0.000 claims description 23
- 230000007547 defect Effects 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
- B25B21/02—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
- B23P19/065—Arrangements for torque limiters or torque indicators in screw or nut setting machines
- B23P19/066—Arrangements for torque limiters or torque indicators in screw or nut setting machines by electrical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/1405—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers for impact wrenches or screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/145—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for fluid operated wrenches or screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/147—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for electrically operated wrenches or screwdrivers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Description
9 トリガスイッチ
10 動力伝達手段
15 トルク推定手段
24 距離センサ
31 モータ制御手段
33 締付け判定手段
ΔT トルク変動量
ΔΔT トルク変動率
Claims (11)
- モータと、モータの回転及び停止の制御を行うモータ制御手段と、モータの回転力を伝達してねじやボルト等の締付け作業を行う動力伝達手段と、ねじやボルト等の締付けトルクを推定するトルク推定手段と、モータの回転角又は時間変化に対する前記締付けトルクの変化の割合であるトルク変動量、及び、モータの回転角又は時間変化に対する前記トルク変動量の変化の割合であるトルク変動率を求めるとともに、前記トルク変動率を用いて、締付けトルクの当該上昇が不具合等に起因した一時的な上昇か否かを判定する為の指標値を算出し、この指標値が不具合判定閾値を超えた後にトルク変動率が約0に至った時点で締付け作業が完了したと判定して前記モータ制御手段にモータの停止指令を出力する締付け判定手段と、を具備したことを特徴とする締付け工具。
- モータと、モータの回転及び停止の制御を行うモータ制御手段と、モータの回転力を伝達してねじやボルト等の締付け作業を行う動力伝達手段と、ねじやボルト等の締付けトルクを推定するトルク推定手段と、モータの回転角又は時間変化に対する前記締付けトルクの変化の割合であるトルク変動量、及び、モータの回転角又は時間変化に対する前記トルク変動量の変化の割合であるトルク変動率を求めるとともに、前記トルク変動率を用いて、締付けトルクの当該上昇が不具合等に起因した一時的な上昇か否かを判定する為の指標値を算出し、この指標値が不具合判定閾値を超えた後にトルク変動率が約0に至り、その後にトルク変動量が約0に至った時点で、締付け作業が完了したと判定して前記モータ制御手段にモータの停止指令を出力する締付け判定手段と、を具備したことを特徴とする締付け工具。
- 前記指標値が、トルク変動率が連続して正となる区間の時間幅、或いは、インパクト工具である場合にトルク変動率が連続して正となる区間内に生じる打撃数であることを特徴とする請求項1又は2記載の締付け工具。
- 前記指標値が、トルク変動率が連続して正である区間内のトルク変動率の積分値、或いは、インパクト工具である場合にトルク変動率が連続して正である区間内に生じる打撃毎のトルク変動率の和であることを特徴とする請求項1又は2記載の締付け工具。
- 前記不具合判定閾値が、判定対象となる区間内の最大トルク変動率を基に算出されるものであることを特徴とする請求項3又は4記載の締付け工具。
- 前記不具合判定閾値が、当該締付け作業の初期の締付けトルクを基に算出されるものであることを特徴とする請求項4記載の締付け工具。
- 前記指標値がトルク変動率の値であって、前記不具合判定閾値が当該締付け作業の初期の締付けトルクを基に算出されるものであることを特徴とする請求項1又は2記載の締付け工具。
- 当該締付け作業の初期の締付けトルクが所定の基準トルクよりも低い場合にはモータ制御手段にモータの減速指令を出力する速度自動調整手段を備えたことを特徴とする請求項1〜7のいずれか記載の締付け工具。
- 前記速度自動調整手段が、初期の締付けトルクが小さい程にモータの回転速度が小さくなるような減速指令を出力するものであることを特徴とする請求項8記載の締付け工具。
- 引き込み量に応じてモータの回転や停止を指令するトリガスイッチを設けるとともに、前記トリガースイッチの引き込み領域を、その領域内にある間はモータ制御手段への停止指令の出力を禁止する領域と、その領域内にある間はモータ制御手段への停止指令の出力を許容する領域とに分割させたことを特徴とする請求項1〜9のいずれか記載の締付け工具。
- ねじやボルト等の着座面までの距離を測定する距離センサを備えるともに、前記距離センサにより測定される距離が着座判定用の基準距離に至るまではモータ制御手段への停止指令を出力させないものであることを特徴とする請求項1〜9のいずれか記載の締付け工具。
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003301899A JP4093145B2 (ja) | 2003-08-26 | 2003-08-26 | 締付け工具 |
| US10/924,979 US6978846B2 (en) | 2003-08-26 | 2004-08-25 | Power tool used for fastening screw or bolt |
| CNB2004100578910A CN1291816C (zh) | 2003-08-26 | 2004-08-26 | 用于紧固螺丝或螺栓的电动工具 |
| ES04255128T ES2280010T3 (es) | 2003-08-26 | 2004-08-26 | Herramienta motorizada utilizada para apretar un tornillo o un perno. |
| EP04255128A EP1510294B1 (en) | 2003-08-26 | 2004-08-26 | Power tool used for fastening a screw or a bolt |
| DE602004004213T DE602004004213T2 (de) | 2003-08-26 | 2004-08-26 | Kraftangetriebenes Werkzeug zum Anziehen einer Schraube oder eines Bolzens |
| DK04255128T DK1510294T3 (da) | 2003-08-26 | 2004-08-26 | Kraftdrevet værktöj til fastgörelse af en skrue eller en bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003301899A JP4093145B2 (ja) | 2003-08-26 | 2003-08-26 | 締付け工具 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005066787A JP2005066787A (ja) | 2005-03-17 |
| JP4093145B2 true JP4093145B2 (ja) | 2008-06-04 |
Family
ID=34101180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003301899A Expired - Lifetime JP4093145B2 (ja) | 2003-08-26 | 2003-08-26 | 締付け工具 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6978846B2 (ja) |
| EP (1) | EP1510294B1 (ja) |
| JP (1) | JP4093145B2 (ja) |
| CN (1) | CN1291816C (ja) |
| DE (1) | DE602004004213T2 (ja) |
| DK (1) | DK1510294T3 (ja) |
| ES (1) | ES2280010T3 (ja) |
Families Citing this family (87)
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| JP3903976B2 (ja) * | 2003-10-14 | 2007-04-11 | 松下電工株式会社 | 締付け工具 |
| JP4400303B2 (ja) * | 2004-05-12 | 2010-01-20 | パナソニック電工株式会社 | インパクト回転工具 |
| JP4211675B2 (ja) * | 2004-05-12 | 2009-01-21 | パナソニック電工株式会社 | インパクト回転工具 |
| JP4203459B2 (ja) * | 2004-08-30 | 2009-01-07 | 日東工器株式会社 | 電動ドライバ装置 |
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| DE102018111652A1 (de) * | 2018-05-15 | 2019-11-21 | STAHLWILLE Eduard Wille GmbH & Co. KG | Werkzeug und Verfahren zum Betätigen eines Werkzeuges |
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| CN115805568B (zh) * | 2021-12-18 | 2025-02-18 | 江苏东成工具科技有限公司 | 一种冲击电动工具 |
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| DE102023212814A1 (de) | 2023-12-15 | 2025-06-18 | Robert Bosch Gesellschaft mit beschränkter Haftung | Handwerkzeugmaschine |
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| FR2522144A1 (fr) | 1982-02-24 | 1983-08-26 | Vallourec | Procede et dispositif pour s'assurer du vissage correct d'un joint tubulaire comportant une butee de limitation de vissage |
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-
2003
- 2003-08-26 JP JP2003301899A patent/JP4093145B2/ja not_active Expired - Lifetime
-
2004
- 2004-08-25 US US10/924,979 patent/US6978846B2/en not_active Expired - Lifetime
- 2004-08-26 DE DE602004004213T patent/DE602004004213T2/de not_active Expired - Lifetime
- 2004-08-26 ES ES04255128T patent/ES2280010T3/es not_active Expired - Lifetime
- 2004-08-26 EP EP04255128A patent/EP1510294B1/en not_active Expired - Lifetime
- 2004-08-26 DK DK04255128T patent/DK1510294T3/da active
- 2004-08-26 CN CNB2004100578910A patent/CN1291816C/zh not_active Expired - Lifetime
Also Published As
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|---|---|
| JP2005066787A (ja) | 2005-03-17 |
| EP1510294A1 (en) | 2005-03-02 |
| CN1291816C (zh) | 2006-12-27 |
| CN1590029A (zh) | 2005-03-09 |
| US6978846B2 (en) | 2005-12-27 |
| DK1510294T3 (da) | 2007-05-14 |
| EP1510294B1 (en) | 2007-01-10 |
| US20050045353A1 (en) | 2005-03-03 |
| DE602004004213T2 (de) | 2007-10-25 |
| ES2280010T3 (es) | 2007-09-01 |
| DE602004004213D1 (de) | 2007-02-22 |
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