[go: up one dir, main page]

JP2010058217A - Screw seizing preventive device - Google Patents

Screw seizing preventive device Download PDF

Info

Publication number
JP2010058217A
JP2010058217A JP2008225779A JP2008225779A JP2010058217A JP 2010058217 A JP2010058217 A JP 2010058217A JP 2008225779 A JP2008225779 A JP 2008225779A JP 2008225779 A JP2008225779 A JP 2008225779A JP 2010058217 A JP2010058217 A JP 2010058217A
Authority
JP
Japan
Prior art keywords
screw
tightening
tightening tool
angle
seizure
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.)
Pending
Application number
JP2008225779A
Other languages
Japanese (ja)
Inventor
Yuki Goto
裕紀 後藤
Hideyuki Tsuchiya
英行 土屋
Daishi Sakatoku
大志 酒徳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Auto Body Co Ltd
Original Assignee
Toyota Auto Body Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyota Auto Body Co Ltd filed Critical Toyota Auto Body Co Ltd
Priority to JP2008225779A priority Critical patent/JP2010058217A/en
Publication of JP2010058217A publication Critical patent/JP2010058217A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To prevent seizing of a first screw member and a second screw portion without using a special bolt and the like, and by a method which does not require man-hour so much. <P>SOLUTION: The screw seizing preventive device 10 coaxially holds the first screw member at tip end of a rotating portion 22 in a hand-held type fastening tool 20, and prevents seizing of the first screw member and the second screw portion in work for fastening the first screw member to the second screw portion provided at a predetermined position. The screw seizing preventive device 10 comprises a posture sensor 25 mounted to the fastening tool 20 and capable of detecting an angle of an axis in the rotating portion 22 of the fastening tool 20 to a standard vector; and a control device 12 having a structure in which a signal of the posture sensor 25 is inputted, and outputting a fastening possible signal when the angle of the axis in the rotating portion 22 of the fastening tool 20 obtained by the posture sensor 25 is within a permissible angle of a bolt B to the standard vector registered in advance. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、手持ち式の締付け工具における回転部の先端に第１ネジ部材を同軸に保持し、その第１ネジ部材を所定位置に設けられた第２ネジ部に対して締付ける作業において、前記第１ネジ部材と第２ネジ部との焼付を防止するネジの焼付き防止装置に関する。   According to the present invention, in the operation of holding the first screw member coaxially at the tip of the rotating portion of the hand-held tightening tool and tightening the first screw member against the second screw portion provided at a predetermined position, The present invention relates to an anti-seizure device for a screw that prevents seizure between a screw member and a second screw portion.

ネジの焼付き防止に関する技術が特許文献１に記載されている。
この技術は、第１ネジ部材（雄ネジ部）と第２ネジ部（雌ネジ部）との焼付きを防止するために、斜め入り防止ボルト１０１を使用している。
即ち、斜め入り防止ボルト１０１は、図４に示すように、雄ネジ部１０２と、前記雄ネジ部１０２よりも小径に形成された案内軸部１０４とから構成されている。上記構成により、斜め入り防止ボルト１０１がナット１２０に対して斜めに挿入されると、図に示すように、案内軸部１０４がナット１２０に挿入される過程で、ナット１２０に対するボルト１０１の傾きが徐々に小さくなり、雄ネジ部１０２がナット１２０の雌ネジ穴１２２の上端位置まで導かれる。これにより、ボルト１０１の雄ネジ部１０２がナット１２０の雌ネジ穴１２２に良好に螺合され、焼付が防止される。 A technique relating to prevention of seizure of screws is described in Patent Document 1.
This technique uses a diagonal entry prevention bolt 101 to prevent seizure between the first screw member (male screw portion) and the second screw portion (female screw portion).
That is, as shown in FIG. 4, the oblique insertion preventing bolt 101 includes a male screw portion 102 and a guide shaft portion 104 formed with a smaller diameter than the male screw portion 102. With the above configuration, when the oblique insertion preventing bolt 101 is inserted obliquely with respect to the nut 120, the inclination of the bolt 101 with respect to the nut 120 is in the process of inserting the guide shaft portion 104 into the nut 120 as shown in the figure. The male screw portion 102 is gradually reduced to the upper end position of the female screw hole 122 of the nut 120. As a result, the male screw portion 102 of the bolt 101 is well screwed into the female screw hole 122 of the nut 120, and seizure is prevented.

特開２００７−３２７０６号公報JP 2007-32706 A

しかし、斜め入り防止ボルト１０１には、雄ネジ部１０２の先に案内軸部１０４が設けられているため、雄ネジ部１０２がナット１２０の雌ネジ穴１２２と螺合した状態で、案内軸部１０４がナット１２０から下方に突出する。このため、前記ナット１２０の裏側（下側）に案内軸部１０４を収納できるスペースが必要になり、前記スペースがない部位では斜め入り防止ボルト１０１を使用できない。
また、通常のボルトを雌ネジ穴に対して手で仮締めし、締付け工具で締付ける方法でも焼付きを防止することが可能であるが、このようにすると工数が掛かり、現実的ではない。 However, since the guide shaft portion 104 is provided at the tip of the male screw portion 102 in the oblique insertion preventing bolt 101, the guide shaft portion is in a state where the male screw portion 102 is screwed into the female screw hole 122 of the nut 120. 104 protrudes downward from the nut 120. For this reason, the space which can accommodate the guide shaft part 104 on the back side (lower side) of the nut 120 is required, and the oblique insertion preventing bolt 101 cannot be used in a portion where there is no space.
Further, it is possible to prevent seizure by a method in which a normal bolt is temporarily tightened manually with respect to the female screw hole and then tightened with a tightening tool. However, this is time consuming and is not practical.

本発明は、上記問題点を解決するためになされたものであり、本発明が解決しようとする課題は、特殊なボルト等を使用せず、また工数が掛からない方法で、第１ネジ部材と第２ネジ部の焼付きを防止できるようにすることである。   The present invention has been made to solve the above-mentioned problems, and the problem to be solved by the present invention is that the first screw member and the first screw member are used in a method that does not use special bolts or the like and does not require man-hours. This is to prevent seizure of the second screw portion.

上記した課題は、各請求項の発明によって解決される。
請求項１の発明は、手持ち式の締付け工具における回転部の先端に第１ネジ部材を同軸に保持し、その第１ネジ部材を所定位置に設けられた第２ネジ部に対して締付ける作業において、前記第１ネジ部材と第２ネジ部との焼付を防止するネジの焼付き防止装置であって、前記締付け工具に取付けられており、基準ベクトルに対する前記締付け工具の回転部における軸線の角度を検出可能な姿勢センサと、前記姿勢センサの信号が入力される構成であり、前記姿勢センサにより得られた前記締付け工具の回転部における軸線の角度が、予め登録されている前記基準ベクトルに対する前記第１ネジ部材の許容角度内にあるときに締付け可能信号を出力する制御装置とを有することを特徴とする。 The above-described problems are solved by the inventions of the claims.
According to the first aspect of the present invention, in the operation of holding the first screw member coaxially at the tip of the rotating portion of the hand-held tightening tool and tightening the first screw member against the second screw portion provided at a predetermined position. A device for preventing seizure of a screw for preventing seizure between the first screw member and the second screw portion, wherein the device is attached to the tightening tool, and an angle of an axis of the rotating portion of the tightening tool with respect to a reference vector is determined. A posture sensor that can be detected and a signal of the posture sensor are input, and an angle of an axis line in the rotating portion of the tightening tool obtained by the posture sensor is the first angle with respect to the reference vector registered in advance. And a control device that outputs a tightenable signal when the angle is within an allowable angle of one screw member.

本発明によると、制御装置は、第１ネジ部材を保持する締付け工具の回転部における軸線の角度が予め登録されている第１ネジ部材の許容角度内にあるときに締付け可能信号を出力する。したがって、制御装置が締付け可能信号を出力した状態で、作業者が締付け工具を動作させることにより、第１ネジ部材が第２ネジ部に対してスムーズに螺合され、両者の焼付を防止できる。
即ち、特殊なボルト等を使用せず、また工数が掛からない方法で、第１ネジ部材と第２ネジ部の焼付きを防止できるようになる。 According to the present invention, the control device outputs a tightenable signal when the angle of the axis of the rotating portion of the tightening tool that holds the first screw member is within the pre-registered allowable angle of the first screw member. Accordingly, when the operator operates the tightening tool in a state where the control device outputs a tightening enable signal, the first screw member is smoothly screwed into the second screw portion, and seizure of both can be prevented.
That is, seizure of the first screw member and the second screw portion can be prevented by a method that does not use special bolts or the like and does not take man-hours.

請求項２の発明によると、姿勢センサは、重力加速度ベクトルを三次元で検出できる３軸加速度センサと、地磁気ベクトルを三次元で検出できる３軸磁気センサとを備え、前記重力加速度ベクトルと地磁気ベクトルを基準ベクトルとして前記締付け工具の回転部における軸線の角度を検出することを特徴とする。
このように、姿勢センサは３軸加速度センサと３軸磁気センサとからなるため、姿勢センサによって締付け工具のあらゆる姿勢における回転部の軸線の角度を検出できるようになる。 According to the invention of claim 2, the attitude sensor includes a three-axis acceleration sensor capable of detecting a gravitational acceleration vector in three dimensions and a three-axis magnetic sensor capable of detecting a geomagnetic vector in three dimensions, and the gravitational acceleration vector and the geomagnetic vector are included. The angle of the axis line in the rotating part of the tightening tool is detected using the reference vector as a reference vector.
As described above, since the posture sensor includes the three-axis acceleration sensor and the three-axis magnetic sensor, the posture sensor can detect the angle of the axis of the rotating portion in any posture of the tightening tool.

請求項３の発明によると、制御装置からの締付け可能信号を受けて、締付け工具を動作可能状態にする工具駆動装置を有することを特徴とする。
このため、仮に、制御装置からの締付け可能信号が出力されていない状態で、作業者が締付け工具を動作させようとしても、工具駆動装置が締付け工具を動作可能状態にしないため、締付け工具は動作しない。これにより、誤操作による第１ネジ部材と第２ネジ部の焼付きを防止できる。 According to a third aspect of the present invention, there is provided a tool driving device that receives a tightening enable signal from the control device and makes the tightening tool operable.
For this reason, even if an operator tries to operate the tightening tool in a state where the tightening enable signal is not output from the control device, the tool driving device does not make the tightening tool operable, so the tightening tool operates. do not do. Thereby, seizure of the 1st screw member and the 2nd screw part by erroneous operation can be prevented.

本発明によると、特殊なボルト等を使用せず、また工数が掛からない方法で、第１ネジ部材と第２ネジ部の焼付きを防止することができる。   According to the present invention, seizure of the first screw member and the second screw portion can be prevented by a method that does not use special bolts or the like and does not take man-hours.

［実施形態１］
以下、図１から図３に基づいて本発明におけるネジの焼付き防止装置について説明する。本実施形態に係るネジの焼付き防止装置は、自動車の製造ラインにおいて、車体に対して室内の部品をボルト止めする際にボルトの雄ネジ部と車体の雌ネジ穴との焼付きを防止するための装置である。ここで、図１は締付け工具でボルトを車体の雌ネジ穴に螺合させる様子を表す側面図、図２はネジの焼付き防止装置の概要を表す模式図、図３はネジの焼付き防止装置の動作を表すフローチャートである。 [Embodiment 1]
A screw seizure prevention device according to the present invention will be described below with reference to FIGS. The screw seizure prevention device according to the present embodiment prevents seizure between the male threaded portion of the bolt and the female threaded hole of the vehicle body when bolting indoor parts to the vehicle body in an automobile production line. It is a device for. Here, FIG. 1 is a side view showing how a bolt is screwed into a female screw hole of a vehicle body with a tightening tool, FIG. 2 is a schematic diagram showing an outline of a screw seizure prevention device, and FIG. It is a flowchart showing operation | movement of an apparatus.

＜ネジの焼付き防止装置１０について＞
ネジの焼付き防止装置１０は、車体２に形成された雌ネジ穴２ｈに対する締付け工具２０の回転部２２（ボルトＢ）の傾斜角度が許容範囲内にあるときにその締付け工具２０を動作可能にし、前記傾斜角度が許容範囲から外れたときに前記締付け工具２０を動作不能にする装置である。これにより、締付け工具２０の回転部２２に同軸に保持されたボルトＢが車体２の雌ネジ穴２ｈに対して斜めに螺合されることがなくなり、ボルトＢと雌ネジ穴２ｈとの焼付きを防止できる。
即ち、ボルトＢが本発明の第１ネジ部材に相当し、雌ネジ穴２ｈが本発明の第２ネジ部に相当する。
ネジの焼付き防止装置１０は、図２に示すように、締付け工具２０に取付けられた姿勢センサ２５と、パソコン１２と、締付け工具２０を動作させるコントローラ１４とから構成されている。 <About the screw seizure prevention device 10>
The screw seizure prevention device 10 makes the tightening tool 20 operable when the inclination angle of the rotating portion 22 (bolt B) of the tightening tool 20 with respect to the female screw hole 2h formed in the vehicle body 2 is within an allowable range. , A device for disabling the tightening tool 20 when the tilt angle deviates from an allowable range. As a result, the bolt B held coaxially on the rotating portion 22 of the tightening tool 20 is not obliquely screwed into the female screw hole 2h of the vehicle body 2, and the bolt B and the female screw hole 2h are seized. Can be prevented.
That is, the bolt B corresponds to the first screw member of the present invention, and the female screw hole 2h corresponds to the second screw portion of the present invention.
As shown in FIG. 2, the screw seizure prevention device 10 includes an attitude sensor 25 attached to the tightening tool 20, a personal computer 12, and a controller 14 that operates the tightening tool 20.

＜締付け工具２０及び姿勢センサ２５について＞
締付け工具２０は、空気圧を利用してボルト締めを行う工具であり、図１（Ａ）に示すように、回転駆動機構（図示省略）を収納する略円筒状のハウジング２１を備えている。ハウジング２１には、前記回転駆動機構の回転力を受けて回転する回転部２２が同軸に支持されており、その回転部２２がハウジング２１の先端から軸方向に突出するように構成されている。そして、前記回転部２２の先端にボルトＢの頭部Ｂｈが嵌合するソケット部２２ｓが同軸に形成されている。また、ハウジング２１の基端部には、姿勢センサ２５が収納されるセンサケース２１ｃが同軸に形成されている。さらに、ハウジング２１の基端部寄りの側面には半径方向外側に突出するグリップ部２３が設けられており、そのグリップ部２３に空気ホース２４の先端が接続されている。 <About the tightening tool 20 and the posture sensor 25>
The tightening tool 20 is a tool that performs bolt tightening using air pressure, and includes a substantially cylindrical housing 21 that houses a rotation drive mechanism (not shown) as shown in FIG. A rotating part 22 that rotates in response to the rotational force of the rotational drive mechanism is coaxially supported on the housing 21, and the rotating part 22 is configured to protrude in the axial direction from the tip of the housing 21. And the socket part 22s which the head Bh of the volt | bolt B fits in the front-end | tip of the said rotation part 22 is formed coaxially. In addition, a sensor case 21 c in which the attitude sensor 25 is housed is formed coaxially at the base end portion of the housing 21. Further, a grip portion 23 protruding outward in the radial direction is provided on a side surface near the base end portion of the housing 21, and a distal end of an air hose 24 is connected to the grip portion 23.

締付け工具２０のハウジング２１のセンサケース２１ｃに収納される姿勢センサ２５は、基準ベクトル（重力加速度ベクトル、地磁気ベクトル）を基準にした締付け工具２０の姿勢を検出するセンサである。姿勢センサ２５は、重力加速度ベクトルを三次元で検出できる３軸加速度センサと、地磁気ベクトルを三次元で検出できる３軸磁気センサとを備える６軸複合センサであり、締付け工具２０のあらゆる姿勢状態を検出することができる。即ち、重力加速度ベクトル、地磁気ベクトルを基準にした締付け工具２０の回転部２２における軸線の角度を検出できるようになる。   The posture sensor 25 housed in the sensor case 21c of the housing 21 of the tightening tool 20 is a sensor that detects the posture of the tightening tool 20 with reference to a reference vector (gravity acceleration vector, geomagnetic vector). The posture sensor 25 is a six-axis composite sensor including a three-axis acceleration sensor that can detect a gravitational acceleration vector in three dimensions and a three-axis magnetic sensor that can detect a geomagnetic vector in three dimensions. Can be detected. That is, it becomes possible to detect the angle of the axis line in the rotating portion 22 of the tightening tool 20 based on the gravitational acceleration vector and the geomagnetic vector.

＜パソコン１２とコントローラ１４について＞
パソコン１２は、図２に示すように、締付け工具２０の姿勢センサ２５からの信号を受けて基準ベクトルに対する締付け工具２０の回転部２２の角度データを記憶し、予め登録されているボルトＢの許容角度データと比較できるように構成されている。そして、締付け工具２０の回転部２２の角度（ボルトＢの角度）が予め登録されているボルトＢの許容角度内にある場合に、パソコン１２は締付け可能信号を出力する。また、締付け工具２０の回転部２２の角度が予め登録されているボルトＢの許容角度から外れている場合には、パソコン１２は締付け不能信号を出力する。 <About PC 12 and controller 14>
As shown in FIG. 2, the personal computer 12 receives the signal from the attitude sensor 25 of the tightening tool 20, stores the angle data of the rotating portion 22 of the tightening tool 20 with respect to the reference vector, and accepts the permissible bolt B registered in advance. It is configured so that it can be compared with angle data. When the angle of the rotating part 22 of the tightening tool 20 (the angle of the bolt B) is within the pre-registered allowable angle of the bolt B, the personal computer 12 outputs a tightening enable signal. Further, when the angle of the rotating portion 22 of the tightening tool 20 is out of the permissible angle of the bolt B registered in advance, the personal computer 12 outputs a tightening impossible signal.

コントローラ１４は、パソコン１２からの締付け可能信号を受けて締付け工具２０を動作可能状態にする。これにより、作業者は締付け工具２０を動作できるようになる。また、コントローラ１４は、パソコン１２からの締付け不能信号を受けて締付け工具２０を動作不能状態にする。これにより、作業者が仮に締付け工具２０を操作しても、締付け工具２０の動作は禁止される。
ここで、締付け工具２０の姿勢センサ２５とパソコン１２とをつなぐ信号ケーブル１３と、締付け工具２０の回転駆動機構とコントローラ１４とをつなぐ信号ケーブル１５とは、空気ホース２４に沿わされた状態で配線される。
即ち、前記パソコン１２が本発明の制御装置に相当し、前記コントローラ１４が本発明の工具駆動装置に相当する。 The controller 14 receives the tightening enable signal from the personal computer 12 and makes the tightening tool 20 operable. As a result, the operator can operate the tightening tool 20. Further, the controller 14 receives the tightening disable signal from the personal computer 12 and makes the tightening tool 20 inoperable. Thereby, even if an operator operates the tightening tool 20, operation | movement of the tightening tool 20 is prohibited.
Here, the signal cable 13 connecting the posture sensor 25 of the tightening tool 20 and the personal computer 12 and the signal cable 15 connecting the rotation drive mechanism of the tightening tool 20 and the controller 14 are wired along the air hose 24. Is done.
That is, the personal computer 12 corresponds to the control device of the present invention, and the controller 14 corresponds to the tool driving device of the present invention.

＜ネジの焼付き防止装置１０の動作について＞
次に、図３のフローチャートに基づいて、ネジの焼付き防止装置１０の動作について説明する。
先ず、作業者が車体２の雌ネジ穴２ｈに対してボルトＢを螺合させる際の締付け工具２０の姿勢が姿勢センサ２５によって検出される（ステップ１３１）。パソコン１２は、姿勢センサ２５からの信号を受けて、締付け工具２０の回転部２２の角度データを記憶し、予め登録されているボルトＢの許容角度データと比較する（ステップ１３２）。そして、締付け工具２０の回転部２２の角度が予め登録されているボルトＢの許容角度内にある場合には（ステップ１３３ ＹＥＳ）、パソコン１２は締付け可能信号を出力する。これにより、コントローラ１４は、パソコン１２からの締付け可能信号を受けて締付け工具２０を動作可能状態にする（ステップ１３４）。この結果、作業者は締付け工具２０を使用してボルトＢを雌ネジ穴２ｈに螺合できるようになる。 <About the operation of the screw seizure prevention device 10>
Next, the operation of the screw seizure prevention device 10 will be described based on the flowchart of FIG.
First, the posture sensor 25 detects the posture of the tightening tool 20 when the operator screws the bolt B into the female screw hole 2h of the vehicle body 2 (step 131). The personal computer 12 receives the signal from the attitude sensor 25, stores the angle data of the rotating portion 22 of the tightening tool 20, and compares it with the allowable angle data of the bolt B registered in advance (step 132). When the angle of the rotating portion 22 of the tightening tool 20 is within the permissible angle of the bolt B registered in advance (YES in step 133), the personal computer 12 outputs a tightening enable signal. Thus, the controller 14 receives the tightening enable signal from the personal computer 12 and makes the tightening tool 20 operable (step 134). As a result, the operator can use the tightening tool 20 to screw the bolt B into the female screw hole 2h.

また、締付け工具２０の回転部２２の角度が、図１（Ｂ）に示すように、予め登録されているボルトＢの許容角度から外れた場合には（ステップ１３３ ＮＯ）、パソコン１２は締付け不能信号を出力する。これにより、コントローラ１４は、パソコン１２からの締付け不能信号を受けて締付け工具２０を動作不能状態にする（ステップ１３５）。これにより、作業者が誤って締付け工具２０を操作しても、締付け工具２０が動作することはない。
このため、ボルトＢが雌ネジ穴２ｈに対して斜めにねじ込まれて焼付くようなトラブルを防止できる。 If the angle of the rotating portion 22 of the tightening tool 20 deviates from the pre-registered allowable angle of the bolt B as shown in FIG. 1B (step 133 NO), the personal computer 12 cannot be tightened. Output a signal. As a result, the controller 14 receives the tightening impossible signal from the personal computer 12 and makes the tightening tool 20 inoperable (step 135). Thereby, even if an operator operates the tightening tool 20 by mistake, the tightening tool 20 does not operate.
For this reason, it is possible to prevent the trouble that the bolt B is screwed obliquely into the female screw hole 2h and seized.

＜本実施形態に係るネジの焼付き防止装置１０の長所について＞
本実施形態に係るネジの焼付き防止装置１０によると、パソコン１２は締付け工具２０の回転部２２における軸線の角度が予め登録されているボルトＢの許容角度内にあるときに締付け可能信号を出力する。したがって、パソコン１２が締付け可能信号を出力した状態で、作業者が締付け工具２０を動作させることにより、ボルトＢが雌ネジ穴２ｈに対してスムーズに螺合され、両者の焼付を防止できる。
即ち、特殊なボルト等を使用せず、また工数が掛からない方法で、ボルトＢと雌ネジ穴２ｈの焼付きを防止できるようになる。
また、姿勢センサ２５は３軸加速度センサと３軸磁気センサとからなるため、姿勢センサ２５によって締付け工具２０のあらゆる姿勢を検出できるようになる。
また、パソコン１２からの締付け可能信号を受けて、締付け工具２０を動作可能にするコントローラ１４が設けられているため、仮に、パソコン１２からの締付け可能信号が出力されていない状態で、作業者が締付け工具２０を動作させようとしても、コントローラ１４が締付け工具２０を動作可能状態にしないため、締付け工具２０は動作することがない。これにより、誤操作によるボルトＢと雌ネジ穴２ｈの焼付きを防止できる。 <Advantages of the screw seizure prevention device 10 according to this embodiment>
According to the screw seizure prevention device 10 according to the present embodiment, the personal computer 12 outputs a tightening enable signal when the angle of the axis of the rotating portion 22 of the tightening tool 20 is within the pre-registered allowable angle of the bolt B. To do. Accordingly, when the operator operates the tightening tool 20 in a state where the personal computer 12 outputs a tightening enable signal, the bolt B is smoothly screwed into the female screw hole 2h, and the seizure of both can be prevented.
That is, seizure of the bolt B and the female screw hole 2h can be prevented by a method that does not use special bolts or the like and does not require man-hours.
Further, since the attitude sensor 25 includes a triaxial acceleration sensor and a triaxial magnetic sensor, any attitude of the tightening tool 20 can be detected by the attitude sensor 25.
In addition, since the controller 14 is provided to receive the tightening enable signal from the personal computer 12 and to enable the tightening tool 20 to operate, the operator can assume that the tightening possible signal from the personal computer 12 is not output. Even if the tightening tool 20 is to be operated, the controller 14 does not make the tightening tool 20 operable, and therefore the tightening tool 20 does not operate. Thereby, seizure of the bolt B and the female screw hole 2h due to an erroneous operation can be prevented.

＜変更例＞
ここで、本発明は上記実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲における変更が可能である。例えば、本実施形態では、車体２に形成された所定の雌ネジ穴２ｈに対するボルトＢの焼付きを防止する例を示したが、複数箇所に用いるボルトの角度データを予めパソコン１２に記憶しておけば、複数の雌ネジ穴に対するボルトの焼付きを防止することができる。また、使用するボルト等の種類に応じてボルトと雌ネジ穴との角度差の許容範囲を変更することも可能である。
さらに、第１ネジ部材の一例としてボルトＢを例示し、第２ネジ部の一例として雌ネジ穴２ｈを例示したが、第１ネジ部材としてナットを使用し、第２ネジ部として車体２に固定されたネジ軸を使用することも可能である。
また、締付け工具２０とパソコン１２とを信号ケーブル１３で接続し、締付け工具２０とコントローラ１４とを信号ケーブル１５で接続する例を示したが、信号ケーブル１３，１５に代わりに無線を利用することも可能である。 <Example of change>
Here, the present invention is not limited to the above-described embodiment, and can be modified without departing from the gist of the present invention. For example, in the present embodiment, an example of preventing the seizure of the bolt B with respect to a predetermined female screw hole 2h formed in the vehicle body 2 has been shown, but the angle data of the bolts used at a plurality of locations is stored in the personal computer 12 in advance. If it does, the seizure of the bolt to the plurality of female screw holes can be prevented. It is also possible to change the allowable range of the angle difference between the bolt and the female screw hole in accordance with the type of bolt used.
Further, the bolt B is illustrated as an example of the first screw member, and the female screw hole 2h is illustrated as an example of the second screw portion. However, a nut is used as the first screw member, and is fixed to the vehicle body 2 as the second screw portion. It is also possible to use a fixed screw shaft.
Moreover, although the example in which the fastening tool 20 and the personal computer 12 are connected by the signal cable 13 and the fastening tool 20 and the controller 14 are connected by the signal cable 15 has been shown, wireless is used instead of the signal cables 13 and 15. Is also possible.

締付け工具でボルトを車体側の雌ネジ穴に螺合させる様子を表す側面図（Ａ図、Ｂ図）である。It is a side view (A figure, B figure) showing a mode that a bolt is screwed in the female screw hole by the side of a vehicle body with a clamping tool. 本実施形態に係るネジの焼付き防止装置の概要を表す模式図である。It is a schematic diagram showing the outline | summary of the sticking prevention apparatus of the screw which concerns on this embodiment. ネジの焼付き防止装置の動作を表すフローチャートである。It is a flowchart showing operation | movement of the sticking prevention apparatus of a screw. 従来のネジの焼付き防止方法を表す側面図である。It is a side view showing the conventional method for preventing seizure of screws.

符号の説明Explanation of symbols

２ｈ・・・・雌ネジ穴（第２ネジ部）
１２・・・・パソコン（制御装置）
１４・・・・コントローラ（工具駆動装置）
２０・・・・締付け工具
２２・・・・回転部
２５・・・・姿勢センサ
Ｂ・・・・・ボルト（第１ネジ部材）

2h ... Female threaded hole (second threaded part)
12 .... PC (control device)
14 .... Controller (tool drive device)
20... Tightening tool 22... Rotating part 25... Posture sensor B.

Claims (3)

手持ち式の締付け工具における回転部の先端に第１ネジ部材を同軸に保持し、その第１ネジ部材を所定位置に設けられた第２ネジ部に対して締付ける作業において、前記第１ネジ部材と第２ネジ部との焼付を防止するネジの焼付き防止装置であって、
前記締付け工具に取付けられており、基準ベクトルに対する前記締付け工具の回転部における軸線の角度を検出可能な姿勢センサと、
前記姿勢センサの信号が入力される構成であり、前記姿勢センサにより得られた前記締付け工具の回転部における軸線の角度が、予め登録されている前記基準ベクトルに対する前記第１ネジ部材の許容角度内にあるときに締付け可能信号を出力する制御装置と、
を有することを特徴とするネジの焼付き防止装置。 In the operation of holding the first screw member coaxially at the tip of the rotating portion of the hand-held tightening tool and tightening the first screw member against the second screw portion provided at a predetermined position, A screw seizure prevention device for preventing seizure with the second screw part,
An attitude sensor attached to the tightening tool and capable of detecting an angle of an axis of the rotating portion of the tightening tool with respect to a reference vector;
The posture sensor signal is input, and the angle of the axis of the rotating part of the tightening tool obtained by the posture sensor is within an allowable angle of the first screw member with respect to the pre-registered reference vector. A control device that outputs a tightening enable signal when
A device for preventing seizure of a screw, comprising: 請求項１に記載されたネジの焼付き防止装置であって、
姿勢センサは、重力加速度ベクトルを三次元で検出できる３軸加速度センサと、地磁気ベクトルを三次元で検出できる３軸磁気センサとを備え、前記重力加速度ベクトルと地磁気ベクトルを基準ベクトルとして前記締付け工具の回転部における軸線の角度を検出することを特徴とするネジの焼付き防止装置。 The screw seizure prevention device according to claim 1,
The posture sensor includes a three-axis acceleration sensor that can detect a gravitational acceleration vector in three dimensions, and a three-axis magnetic sensor that can detect a geomagnetic vector in three dimensions, and uses the gravitational acceleration vector and the geomagnetic vector as reference vectors. An apparatus for preventing seizure of a screw, characterized in that an angle of an axis line in a rotating part is detected. 請求項２に記載されたネジの焼付き防止装置であって、
前記制御装置からの締付け可能信号を受けて、前記締付け工具を動作可能状態にする工具駆動装置を有することを特徴とするネジの焼付き防止装置。
The screw seizure prevention device according to claim 2,
An apparatus for preventing seizure of a screw, comprising: a tool driving device that receives a tightening enable signal from the control device and makes the tightening tool operable.
JP2008225779A 2008-09-03 2008-09-03 Screw seizing preventive device Pending JP2010058217A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008225779A JP2010058217A (en) 2008-09-03 2008-09-03 Screw seizing preventive device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008225779A JP2010058217A (en) 2008-09-03 2008-09-03 Screw seizing preventive device

Publications (1)

Publication Number Publication Date
JP2010058217A true JP2010058217A (en) 2010-03-18

Family

ID=42185610

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008225779A Pending JP2010058217A (en) 2008-09-03 2008-09-03 Screw seizing preventive device

Country Status (1)

Country Link
JP (1) JP2010058217A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011194483A (en) * 2010-03-17 2011-10-06 Nec Infrontia Corp Electric screw driver with tilt detection function and screw fastening method using the same
KR20130031226A (en) * 2011-09-20 2013-03-28 드리테 파텐트포트폴리오 베타일리궁스게젤샤프트 엠베하 운트 코. 카게 Method for controlling at least one control variable of a tool and the tool
JP2013066999A (en) * 2011-09-20 2013-04-18 Dritte Patentportfolio Beteiligungsgesellschaft Mbh & Co Kg Method for specifying change of tool posture, tool, and tool control unit
EP3168009A1 (en) 2015-11-11 2017-05-17 Makita Corporation Electric working machine and working machine management system
EP3020512B1 (en) * 2014-11-12 2022-02-23 Robert Bosch GmbH Tool and method for treating a workpiece with a tool element of a tool

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0981308A (en) * 1994-07-08 1997-03-28 Seiko Instr Inc Position detector and tilt sensor
JP2004219332A (en) * 2003-01-16 2004-08-05 National Institute Of Advanced Industrial & Technology Position information processing device
JP2006095626A (en) * 2004-09-29 2006-04-13 Honda Motor Co Ltd Automatic tool

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0981308A (en) * 1994-07-08 1997-03-28 Seiko Instr Inc Position detector and tilt sensor
JP2004219332A (en) * 2003-01-16 2004-08-05 National Institute Of Advanced Industrial & Technology Position information processing device
JP2006095626A (en) * 2004-09-29 2006-04-13 Honda Motor Co Ltd Automatic tool

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011194483A (en) * 2010-03-17 2011-10-06 Nec Infrontia Corp Electric screw driver with tilt detection function and screw fastening method using the same
KR20130031226A (en) * 2011-09-20 2013-03-28 드리테 파텐트포트폴리오 베타일리궁스게젤샤프트 엠베하 운트 코. 카게 Method for controlling at least one control variable of a tool and the tool
JP2013067000A (en) * 2011-09-20 2013-04-18 Dritte Patentportfolio Beteiligungsgesellschaft Mbh & Co Kg Method for controlling at least one control variable of tool, and the tool
JP2013066999A (en) * 2011-09-20 2013-04-18 Dritte Patentportfolio Beteiligungsgesellschaft Mbh & Co Kg Method for specifying change of tool posture, tool, and tool control unit
EP3020512B1 (en) * 2014-11-12 2022-02-23 Robert Bosch GmbH Tool and method for treating a workpiece with a tool element of a tool
EP3168009A1 (en) 2015-11-11 2017-05-17 Makita Corporation Electric working machine and working machine management system

Similar Documents

Publication Publication Date Title
CN102015219B (en) Method and device for tightening joints
JP2010058217A (en) Screw seizing preventive device
JP3136113U (en) Tool socket
CN111618639B (en) Machine tools, processing systems, and methods for determining whether draw bolts are suitable
JP5041000B2 (en) Screw tightening device
JP5252589B2 (en) Electric screwdriver with tilt detection function and screw tightening method with electric screwdriver
JP6929537B2 (en) How to assemble work assistance system, work assistance device, and valve
JP5095721B2 (en) Electric tool with swivel cable coupling
JP2009285756A (en) Tool socket fall prevention device and tool socket
CN108071655A (en) Indicate the fastener of the loose amount of moving back
CN112236267B (en) Fastening device
JP7263205B2 (en) Accelerator position sensor unit and its mounting structure
JP2012115941A (en) Control system for potable fastening tool
CN113927625B (en) Robot joint assembly, control method of robot joint assembly and robot
JP2010094757A (en) Power tool
CN117507011A (en) Force detection device and robot system
TW202227215A (en) Supply device of embedding member enables the embedding member to be screwed to an inserting tool of embedding member, and makes the notch to be accurately engaged with a hook to prevent the damage of the embedding member
US11669067B2 (en) Work management apparatus, work management method, and work management system
CN114096381B (en) Portable socket holder for sockets or drill bits that attach to power tools
US20250367817A1 (en) Robot tool
JP5471375B2 (en) Protective cover for box bit tool
JP2019076987A (en) Control device of fastening tool
JP5079366B2 (en) Rotating tool
JP4135678B2 (en) Screw tightening method
EP2914801B1 (en) Core barrel holder and methods of using same

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20110202

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20121130

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20121204

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20130402