JP2020146801A - Fastening system and fastening method - Google Patents

Fastening system and fastening method Download PDF

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JP2020146801A
JP2020146801A JP2019046535A JP2019046535A JP2020146801A JP 2020146801 A JP2020146801 A JP 2020146801A JP 2019046535 A JP2019046535 A JP 2019046535A JP 2019046535 A JP2019046535 A JP 2019046535A JP 2020146801 A JP2020146801 A JP 2020146801A
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fastening member
fastening
fastened
runner
axis direction
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JP7213108B2 (en
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吉秀 平田
Yoshihide Hirata
吉秀 平田
敏昭 敦賀
Toshiaki Tsuruga
敏昭 敦賀
啓 栗原
Hiroshi Kurihara
啓 栗原
嘉洋 仲澤
Yoshihiro Nakazawa
嘉洋 仲澤
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Mitsubishi Heavy Industries Aero Engines Ltd
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Abstract

To provide a fastening system and a fastening method capable of restraining reduction in reliability of fastening of a fastening member even in supply with a rotation axis direction of the fastening member being slant relative to a rotation axis direction of a fastening target member.SOLUTION: A fastening system 100 makes a fastening member runner 10 perform an inverse rotary operation which rotates a fastening member 1 in a loosening direction while pressing it against a fastening target member 3 via a control device 60. The fastening system 100 makes a physical quantity detection device 20 detect push-up information for a push-up phenomenon of the fastening member 1 to the fastening target member 3 which occurs in the inverse rotation operation, and calculates an inclination state of the rotation axis direction of the fastening member runner 10 to the rotary axis direction of the fastening target member 3 based on the push-up information. The fastening system 100 makes a fastening member runner inclination device 30 resolve the inclination state based on the calculated inclination state, and fastens the fastening member 1 to the fastening target member 3 via the fastening member runner 10 with the inclination state resolved.SELECTED DRAWING: Figure 1

Description

本発明は、締結システム及び締結方法に関する。 The present invention relates to a fastening system and a fastening method.

ナットをボルトに対して押圧しながら弛緩方向に回転させる逆回転動作の際に発生する振動の有無に基づいて、ナットとボルトとの間に発生し得る噛み込み現象が起きることを抑制することができるナット締結方法が知られている(特許文献1参照)。 It is possible to suppress the occurrence of a biting phenomenon that may occur between the nut and the bolt based on the presence or absence of vibration generated during the reverse rotation operation in which the nut is rotated in the relaxation direction while pressing against the bolt. A nut fastening method is known (see Patent Document 1).

特開2017−170574号公報JP-A-2017-170574

特許文献1に記載の方法では、ナットの回転軸方向がボルトの回転軸方向に対して傾斜している場合に、ナット締結の信頼性が低下する可能性があるという問題があった。また、同様に、ボルトの回転軸方向がナットの回転軸方向に対して傾斜している場合に、ボルト締結の信頼性が低下する可能性があるという問題も懸念されていた。 The method described in Patent Document 1 has a problem that the reliability of nut fastening may decrease when the rotation axis direction of the nut is inclined with respect to the rotation axis direction of the bolt. Similarly, when the rotation axis direction of the bolt is inclined with respect to the rotation axis direction of the nut, there is a concern that the reliability of bolt fastening may decrease.

本発明は、上記に鑑みてなされたものであって、ナット及びボルトのうちいずれか一方を締結部材とし、ナット及びボルトのうちいずれか他方を被締結部材として、締結部材を被締結部材に締結する場合であって、締結部材の回転軸方向が被締結部材の回転軸方向に対して傾斜して供給される場合でも、締結部材の締結の信頼性の低下を抑制することができる締結システム及び締結方法を提供することを目的とする。 The present invention has been made in view of the above, and one of a nut and a bolt is used as a fastening member, and one of the nut and the bolt is used as a fastening member, and the fastening member is fastened to the fastened member. In this case, even when the rotation axis direction of the fastening member is inclined with respect to the rotation axis direction of the fastening member and the fastening member is supplied, the fastening reliability of the fastening member can be suppressed from being lowered. The purpose is to provide a fastening method.

上述した課題を解決し、目的を達成するために、締結システムは、ナット及びボルトのうちいずれか一方を締結部材とし、前記ナット及び前記ボルトのうちいずれか他方を被締結部材として、前記締結部材を前記被締結部材に締結する締結システムであって、前記締結部材を保持し、保持した前記締結部材を前記被締結部材に対して押圧しながら回転軸周りに回転させる締結部材ランナと、前記締結部材ランナの位置変化及び前記締結部材ランナへの反力を検出する物理量検出装置と、前記締結部材ランナの傾斜角を変更する締結部材ランナ傾斜装置と、前記締結部材ランナ、前記物理量検出装置及び前記締結部材ランナ傾斜装置を制御する制御装置と、を備え、前記制御装置は、前記締結部材を前記被締結部材に対して押圧しながら弛緩方向に回転させる逆回転動作を前記締結部材ランナに実行させ、前記逆回転動作の際に生じる前記締結部材の前記被締結部材に対する押上現象における押上情報を前記物理量検出装置に検出させ、前記押上情報に基づいて、前記締結部材ランナの回転軸方向の前記被締結部材の回転軸方向に対する傾斜状態を算出し、算出した前記傾斜状態に基づいて、前記締結部材ランナ傾斜装置に前記傾斜状態を解消させ、前記傾斜状態を解消させた状態で、前記締結部材ランナにより前記締結部材を前記被締結部材に締結させる、ことを特徴とする。 In order to solve the above-mentioned problems and achieve the object, the fastening system uses one of a nut and a bolt as a fastening member, and one of the nut and the bolt as a fastening member, and the fastening member. Is a fastening system that fastens the fastening member to the fastened member, and the fastening member runner that holds the fastening member and rotates the holding member with respect to the fastened member while rotating around a rotation axis, and the fastening. A physical quantity detecting device that detects a change in the position of the member runner and a reaction force on the fastening member runner, a fastening member runner tilting device that changes the tilt angle of the fastening member runner, the fastening member runner, the physical quantity detecting device, and the above. A control device for controlling the fastening member runner tilting device is provided, and the control device causes the fastening member runner to perform a reverse rotation operation of rotating the fastening member in a loosening direction while pressing the fastening member against the member to be fastened. , The physical quantity detection device is made to detect the push-up information in the push-up phenomenon of the fastening member with respect to the fastened member generated in the reverse rotation operation, and based on the push-up information, the cover in the rotation axis direction of the fastening member runner. The tilted state of the fastening member with respect to the rotation axis direction is calculated, and based on the calculated tilted state, the fastening member runner tilting device cancels the tilted state, and in a state where the tilted state is eliminated, the fastening member runner It is characterized in that the fastening member is fastened to the fastened member.

この構成によれば、締結部材の回転軸方向の被締結部材の回転軸方向に対する傾斜状態を算出して、この傾斜状態を解消させ、傾斜状態を解消させた状態で締結部材の締結をすることができるので、締結部材の回転軸方向が被締結部材の回転軸方向に対して傾斜して供給される場合でも、締結部材の締結の信頼性の低下を抑制することができる。 According to this configuration, the tilted state of the fastened member in the rotation axis direction with respect to the rotation axis direction is calculated, the tilted state is eliminated, and the fastening member is fastened in the tilted state. Therefore, even when the rotation axis direction of the fastening member is inclined with respect to the rotation axis direction of the member to be fastened, it is possible to suppress a decrease in the reliability of fastening the fastening member.

この構成において、前記制御装置は、前記逆回転動作の際の前記押上情報の1つのパラメータである前記締結部材ランナの前記位置変化に基づいて、前記傾斜状態の1つのパラメータである前記締結部材ランナの回転軸方向の前記被締結部材の回転軸方向に対する傾斜角を算出し、前記逆回転動作の際の前記押上情報のもう1つのパラメータである前記締結部材ランナへの反力に基づいて、前記傾斜状態のもう1つのパラメータである前記締結部材ランナの回転軸方向の前記被締結部材の回転軸方向に対する傾斜方向を算出し、前記傾斜方向において、前記傾斜角を解消する方向に、前記締結部材ランナ傾斜装置に前記締結部材ランナの傾斜角を変更させる、ことが好ましい。この構成によれば、締結部材の回転軸方向の被締結部材の回転軸方向に対する傾斜状態をより詳細により正確に算出することができるので、締結部材の回転軸方向が被締結部材の回転軸方向に対して傾斜して供給される場合でも、締結部材の締結の信頼性の低下をさらに抑制することができる。 In this configuration, the control device has the fastening member runner, which is one parameter of the tilted state, based on the position change of the fastening member runner, which is one parameter of the push-up information during the reverse rotation operation. The inclination angle of the member to be fastened with respect to the rotation axis direction in the rotation axis direction is calculated, and the reaction force to the fastening member runner, which is another parameter of the push-up information during the reverse rotation operation, is used. The fastening member is calculated in the direction of rotation of the fastening member runner, which is another parameter of the tilted state, with respect to the rotation axis direction of the member to be fastened, and in the tilting direction, the fastening member is in the direction of eliminating the tilt angle. It is preferable that the runner tilting device changes the tilt angle of the fastening member runner. According to this configuration, the tilted state of the fastening member in the rotation axis direction with respect to the rotation axis direction can be calculated in more detail, so that the rotation axis direction of the fastening member is the rotation axis direction of the fastening member. Even when the supply is inclined with respect to the relative direction, it is possible to further suppress a decrease in reliability of fastening of the fastening member.

この構成において、前記締結部材ランナを移動させる締結部材ランナ移動装置と、前記締結部材を締結する前記被締結部材を検出する被締結部材検出装置と、をさらに備え、前記制御装置は、前記締結部材ランナ移動装置及び前記被締結部材検出装置を更に制御し、前記被締結部材検出装置に前記被締結部材を検出させ、前記被締結部材検出装置に検出させた前記被締結部材の情報に基づいて、前記締結部材ランナ移動装置により前記締結部材ランナを前記被締結部材の回転軸方向から前記被締結部材に接近移動させる、ことが好ましい。この構成によれば、締結部材を被締結部材に接近移動させた際の締結部材の回転軸方向の被締結部材の回転軸方向に対する傾斜を抑制することができるので、締結部材の回転軸方向が被締結部材の回転軸方向に対して傾斜して供給される場合でも、締結部材の締結の信頼性の低下をさらに抑制することができる。 In this configuration, a fastening member runner moving device for moving the fastening member runner and a fastening member detecting device for detecting the fastening member for fastening the fastening member are further provided, and the control device includes the fastening member. Based on the information of the fastened member detected by the runner moving device and the fastened member detecting device, the fastened member detecting device detects the fastened member, and the fastened member detecting device detects the fastened member. It is preferable that the fastening member runner is moved closer to the fastening member from the rotation axis direction of the fastening member by the fastening member runner moving device. According to this configuration, when the fastening member is moved close to the fastening member, the inclination of the fastening member in the rotation axis direction with respect to the rotation axis direction can be suppressed, so that the rotation axis direction of the fastening member can be changed. Even when the member to be fastened is supplied at an angle with respect to the rotation axis direction, it is possible to further suppress a decrease in the reliability of fastening the fastening member.

上述した課題を解決し、目的を達成するために、締結方法は、ナット及びボルトのうちいずれか一方を締結部材とし、前記ナット及び前記ボルトのうちいずれか他方を被締結部材として、前記締結部材を前記被締結部材に締結する締結方法であって、前記締結部材を前記被締結部材に対して押圧しながら弛緩方向に回転させる逆回転動作を実行する逆回転動作ステップと、前記逆回転動作の際に生じる前記締結部材の前記被締結部材に対する押上現象における押上情報を検出する押上情報検出ステップと、前記押上情報に基づいて、前記締結部材の回転軸方向の前記被締結部材の回転軸方向に対する傾斜状態を算出する傾斜算出ステップと、算出した前記傾斜状態に基づいて、前記傾斜状態を解消する傾斜状態解消ステップと、前記傾斜状態を解消させた状態で、前記締結部材を前記被締結部材に締結する締結ステップと、を有することを特徴とする。この構成によれば、本発明に係る締結システムと同様に、締結部材の回転軸方向の被締結部材の回転軸方向に対する傾斜状態を算出して、この傾斜状態を解消させ、傾斜状態を解消させた状態で締結部材の締結をすることができるので、締結部材の回転軸方向が被締結部材の回転軸方向に対して傾斜して供給される場合でも、締結部材の締結の信頼性の低下を抑制することができる。 In order to solve the above-mentioned problems and achieve the purpose, in the fastening method, one of the nut and the bolt is used as a fastening member, and one of the nut and the bolt is used as a fastening member. A reverse rotation operation step of executing a reverse rotation operation of rotating the fastening member in a loosening direction while pressing the fastening member against the fastened member, and a reverse rotation operation of the reverse rotation operation. The push-up information detection step for detecting the push-up information in the push-up phenomenon of the fastening member with respect to the fastened member, and the rotation axis direction of the fastening member with respect to the rotation axis direction of the fastened member based on the push-up information. An inclination calculation step for calculating an inclination state, an inclination state elimination step for eliminating the inclination state based on the calculated inclination state, and a fastening member being attached to the fastened member in a state where the inclination state is eliminated. It is characterized by having a fastening step for fastening. According to this configuration, similarly to the fastening system according to the present invention, the tilted state of the fastened member in the rotation axis direction with respect to the rotation axis direction is calculated, and this tilted state is eliminated, and the tilted state is eliminated. Since the fastening member can be fastened in the state of being fastened, the reliability of fastening the fastening member is lowered even when the fastening member is supplied with the rotation axis direction inclined with respect to the rotation axis direction of the fastened member. It can be suppressed.

本発明によれば、ナット及びボルトのうちいずれか一方を締結部材とし、ナット及びボルトのうちいずれか他方を被締結部材として、締結部材を被締結部材に締結する場合であって、締結部材の回転軸方向が被締結部材の回転軸方向に対して傾斜して供給される場合でも、締結部材の締結の信頼性の低下を抑制することができる締結システム及び締結方法を提供することができる。 According to the present invention, one of the nut and the bolt is used as a fastening member, and one of the nut and the bolt is used as a fastening member, and the fastening member is fastened to the fastened member. It is possible to provide a fastening system and a fastening method capable of suppressing a decrease in reliability of fastening of the fastening member even when the rotation axis direction is inclined with respect to the rotation axis direction of the member to be fastened.

図1は、本発明の実施形態に係る締結システムの構成図である。FIG. 1 is a configuration diagram of a fastening system according to an embodiment of the present invention. 図2は、図1の締結システムによって締結部材の締結が施される被締結部材ユニットの一例を示す概略図である。FIG. 2 is a schematic view showing an example of a member to be fastened unit to which the fastening member is fastened by the fastening system of FIG. 図3は、本発明の実施形態に係る締結方法を示すフローチャートである。FIG. 3 is a flowchart showing a fastening method according to an embodiment of the present invention. 図4は、図3の締結方法を説明する説明図である。FIG. 4 is an explanatory diagram illustrating the fastening method of FIG. 図5は、図3の押上情報検出ステップを説明する説明図である。FIG. 5 is an explanatory diagram illustrating the push-up information detection step of FIG. 図6は、図3の傾斜算出ステップを説明する説明図である。FIG. 6 is an explanatory diagram illustrating the inclination calculation step of FIG. 図7は、図3の傾斜算出ステップを説明する説明図である。FIG. 7 is an explanatory diagram illustrating the inclination calculation step of FIG.

以下に、本発明に係る実施形態を図面に基づいて詳細に説明する。なお、この実施形態によりこの発明が限定されるものではない。また、実施形態における構成要素には、当業者が置換可能かつ容易なもの、あるいは実質的に同一のものが含まれる。さらに、以下に記載した構成要素は適宜組み合わせることが可能である。 Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment. In addition, the components in the embodiment include those that can be easily replaced by those skilled in the art, or those that are substantially the same. Furthermore, the components described below can be combined as appropriate.

[実施形態]
図1は、本発明の実施形態に係る締結システム100の構成図である。締結システム100は、ナット及びボルトのうちいずれか一方を締結部材1とし、ナット及びボルトのうちいずれか他方を被締結部材3として、締結部材1を被締結部材3に締結するシステムであり、図1に示す実施形態では、締結部材1としてナットを、被締結部材3としてボルトを選択した場合の形態について説明する。なお、締結システム100は、締結部材1としてナットを、被締結部材3としてボルトを選択して、ナットをボルトに締結する場合の図1に示す形態に限定されず、締結部材1としてボルトを、被締結部材3としてナットを選択して、ボルトをナットに締結する場合の形態であってもよい。締結システム100は、図1に示すように、締結部材ランナ10と、物理量検出装置20と、締結部材ランナ傾斜装置30と、締結部材ランナ移動装置40と、被締結部材検出装置50と、制御装置60と、を備える。締結システム100は、締結部材1の回転軸方向の被締結部材3の回転軸方向に対する傾斜状態を算出して、この傾斜状態を解消させ、傾斜状態を解消させた状態で締結部材1を被締結部材3に締結をするシステムである。なお、締結部材1の内側に形成された螺旋状のねじ溝と被締結部材3の外側に形成された螺旋状のねじ溝とは、互いに螺合する。
[Embodiment]
FIG. 1 is a configuration diagram of a fastening system 100 according to an embodiment of the present invention. The fastening system 100 is a system in which one of a nut and a bolt is used as a fastening member 1, and one of a nut and a bolt is used as a fastening member 3, and the fastening member 1 is fastened to the fastened member 3. In the embodiment shown in 1, a mode in which a nut is selected as the fastening member 1 and a bolt is selected as the fastening member 3 will be described. The fastening system 100 is not limited to the form shown in FIG. 1 when a nut is selected as the fastening member 1 and a bolt is selected as the fastening member 3 and the nut is fastened to the bolt, and the bolt is used as the fastening member 1. It may be a form in which a nut is selected as the member to be fastened 3 and a bolt is fastened to the nut. As shown in FIG. 1, the fastening system 100 includes a fastening member runner 10, a physical quantity detecting device 20, a fastening member runner tilting device 30, a fastening member runner moving device 40, a fastened member detecting device 50, and a control device. 60 and. The fastening system 100 calculates the tilted state of the fastening member 1 in the rotation axis direction with respect to the rotation axis direction, eliminates this tilted state, and fastens the fastening member 1 in a state where the tilted state is eliminated. It is a system for fastening to the member 3. The spiral thread groove formed inside the fastening member 1 and the spiral thread groove formed outside the fastening member 3 are screwed together.

ここで、傾斜状態とは、締結部材1の回転軸方向が、被締結部材3の回転軸方向に対して要求された姿勢状態に対して所定の閾値より大きな角度で傾斜している状態であることを言い、傾斜状態を解消するとは、傾斜状態にある締結部材1の回転軸方向が、被締結部材3の回転軸方向に対して要求された姿勢状態に補正されることを言う。また、締結部材1の回転軸方向が、被締結部材3の回転軸方向に対して要求された姿勢状態に対して所定の閾値以下の角度でしか傾斜していない状態を、締結部材1が傾斜していない状態であるとして説明する。 Here, the inclined state is a state in which the rotation axis direction of the fastening member 1 is tilted at an angle larger than a predetermined threshold value with respect to the posture state required for the rotation axis direction of the fastened member 3. That is, eliminating the tilted state means that the rotation axis direction of the fastening member 1 in the tilted state is corrected to the posture state required with respect to the rotation axis direction of the fastened member 3. Further, the fastening member 1 is tilted so that the rotation axis direction of the fastening member 1 is tilted only at an angle equal to or less than a predetermined threshold value with respect to the posture state required for the rotation axis direction of the fastened member 3. Explain that it is not in the state.

また、締結部材1の傾斜状態は、本実施形態では、傾斜角と、傾斜方向との2つのパラメータで客観的に表示される。締結部材1の傾斜角は、締結部材1の回転軸方向と、被締結部材3の回転軸方向とが形成する角度のことを指す。締結部材1の傾斜方向は、締結部材1の回転軸方向の被締結部材3の回転軸方向に対して傾斜角だけ傾斜している方向のことを指す。 Further, in the present embodiment, the tilted state of the fastening member 1 is objectively displayed by two parameters, the tilt angle and the tilt direction. The inclination angle of the fastening member 1 refers to an angle formed by the rotation axis direction of the fastening member 1 and the rotation axis direction of the fastened member 3. The inclination direction of the fastening member 1 refers to a direction in which the fastening member 1 is inclined by an inclination angle with respect to the rotation axis direction of the fastened member 3 in the rotation axis direction.

図2は、図1の締結システム100によって締結部材の締結が施される被締結部材ユニット2の一例を示す概略図である。被締結部材ユニット2は、被締結部材3としてボルトを選択した場合の形態の一例であり、図2に示すように、水平方向であるXY平面に沿って延びる板部2−1と、板部2−1から鉛直方向上方である+Z方向に立設された被締結部材3−1,3−2,3−3,3−4,3−5,3−6と、を備える。 FIG. 2 is a schematic view showing an example of a member to be fastened unit 2 in which the fastening member is fastened by the fastening system 100 of FIG. The fastened member unit 2 is an example of a form in which a bolt is selected as the fastened member 3, and as shown in FIG. 2, a plate portion 2-1 extending along an XY plane in the horizontal direction and a plate portion 3-1, 3-2, 3-3, 3-4, 3-5, 3-6 of the members to be fastened, which are erected in the + Z direction, which is vertically upward from 2-1.

被締結部材3−1,3−2,3−3,3−4,3−5,3−6は、いずれも、外周部に螺旋状のねじ溝が形成されたボルトであり、例えば、スタッドボルトが好適に使用される。被締結部材3−1,3−2,3−3,3−4,3−5,3−6は、外径(被締結部材3としてナットを選択した場合には内径)及びねじ溝のピッチ等の被締結部材に関するパラメータが、互いに異なっていてもよく、互いに同一であってもよい。被締結部材3−1,3−2,3−3,3−4,3−5,3−6の被締結部材に関するパラメータに応じて、被締結部材3−1,3−2,3−3,3−4,3−5,3−6に締結される締結部材1の仕様は、適宜選択される。以下において、被締結部材3−1,3−2,3−3,3−4,3−5,3−6を区別する必要が無い場合には、適宜、被締結部材3と略記する。 The members to be fastened 3-1, 3-2, 3-3, 3-4, 3-5, 3-6 are all bolts having a spiral thread groove formed on the outer peripheral portion, for example, a stud. Bolts are preferably used. The outer diameter (inner diameter when a nut is selected as the fastened member 3) and the pitch of the thread grooves of the fastened member 3-1, 3-2, 3-3, 3-4, 3-5, 3-6 The parameters related to the members to be fastened, such as, may be different from each other or may be the same as each other. Depending on the parameters related to the members to be fastened 3-1, 3-2, 3-3, 3-4, 3-5, 3-6, the members to be fastened 3-1, 3-2, 3-3 , 3-4, 3-5, 3-6 The specifications of the fastening member 1 to be fastened are appropriately selected. In the following, when it is not necessary to distinguish between the members to be fastened 3-1, 3-2, 3-3, 3-4, 3-5, 3-6, the members to be fastened 3 will be abbreviated as appropriate.

本実施形態では、被締結部材ユニット2の板部2−1を水平方向であるXY平面に沿って、板部2−1に立設された被締結部材3を鉛直方向上方である+Z方向に向けて載置し、被締結部材3を板部材4の所定の貫通孔4−1に挿通して、締結部材1を鉛直方向下方である−Z方向に向けて被締結部材3に締結することで、板部材4を締結部材1と被締結部材ユニット2の板部2−1とで挟み込むようにして固定する形態について説明する。 In the present embodiment, the plate portion 2-1 of the member unit 2 to be fastened is placed along the XY plane in the horizontal direction, and the member 3 to be fastened standing on the plate portion 2-1 is vertically upward in the + Z direction. The fastening member 3 is inserted into a predetermined through hole 4-1 of the plate member 4, and the fastening member 1 is fastened to the fastened member 3 in the -Z direction, which is downward in the vertical direction. Hereinafter, a mode in which the plate member 4 is fixed by being sandwiched between the fastening member 1 and the plate portion 2-1 of the member unit 2 to be fastened will be described.

なお、本実施形態では、説明を簡単にするため、被締結部材ユニット2について、板部2−1をXY平面に沿って延びる平面であり、被締結部材3−1,3−2,3−3,3−4,3−5,3−6の立設方向を鉛直方向上方である+Z方向であると比較的単純な形状で仮定して説明するが、本発明はこれに限定されない。締結部材1の回転軸方向の被締結部材3の回転軸方向に対する傾斜状態を解消させるという性質のシステムであるという特性を有する本発明の実施形態に係る締結システム100にとっては、むしろ、被締結部材ユニット2について、板部2−1が複雑な曲面形状であったり、被締結部材3−1,3−2,3−3,3−4,3−5,3−6の立設方向が斜め方向を向いていたりする方が、後述する本発明の実施形態に係る締結システム100がもたらす作用効果をより顕著に発揮するという点では、好ましい。 In this embodiment, for the sake of simplicity, the unit 2 to be fastened is a plane extending the plate portion 2-1 along the XY plane, and the members to be fastened 3-1, 3-2, 3- Although it is assumed that the erection directions of 3, 3-4, 3-5, and 3-6 are in the + Z direction, which is upward in the vertical direction, in a relatively simple shape, the present invention is not limited to this. Rather, for the fastening system 100 according to the embodiment of the present invention, which has the characteristic of eliminating the tilted state of the fastening member 3 in the rotation axis direction of the fastening member 1 with respect to the rotation axis direction, the fastened member Regarding the unit 2, the plate portion 2-1 has a complicated curved shape, or the members to be fastened 3-1, 3-2, 3-3, 3-4, 3-5, 3-6 are erected in an oblique direction. It is preferable to face the direction in that the effect of the fastening system 100 according to the embodiment of the present invention, which will be described later, is more prominently exhibited.

本実施形態で締結システム100による締結方法に供される被締結部材ユニット2は、具体的には、エンジンを耐熱補強する耐熱補強部材や、エンジンを耐圧補強する耐圧補強部材等が例示される。また、本実施形態で締結システム100による締結方法に供される板部材4は、被締結部材3に締結部材1を締結することで締結部材1と被締結部材ユニット2の板部2−1とで挟み込むようにして固定される部材であり、被締結部材ユニット2によって耐熱補強や耐圧補強が施されるエンジンの構造部材が例示される。被締結部材ユニット2としてエンジンを耐熱補強する耐熱補強部材やエンジンを耐圧補強する耐圧補強部材等が採用され、板部材4として耐熱補強や耐圧補強が施されるエンジンの構造部材が採用される場合、被締結部材3に締結部材1を締結する箇所が著しく多くなるので、後述する本発明の実施形態に係る締結システム100がもたらす作用効果をより顕著に発揮するという点では、好ましい形態となる。 Specific examples of the member unit 2 to be fastened used in the fastening method by the fastening system 100 in the present embodiment include a heat resistant reinforcing member that heat-reinforces the engine, a pressure-resistant reinforcing member that heat-reinforces the engine, and the like. Further, the plate member 4 used in the fastening method by the fastening system 100 in the present embodiment is formed by fastening the fastening member 1 to the fastening member 3 so that the fastening member 1 and the plate portion 2-1 of the fastening member unit 2 are fastened. An example is an engine structural member that is fixed by being sandwiched between the two members and is heat-resistant and pressure-resistant by the fastened member unit 2. When a heat-resistant reinforcing member for heat-reinforcing the engine, a pressure-resistant reinforcing member for pressure-resistant reinforcement of the engine, or the like is adopted as the fastened member unit 2, and a structural member of the engine to be heat-resistant or pressure-resistant is adopted as the plate member 4. Since the number of places where the fastening member 1 is fastened to the fastened member 3 is remarkably increased, it is a preferable mode in that the action and effect brought about by the fastening system 100 according to the embodiment of the present invention described later is more remarkably exhibited.

締結部材ランナ10は、制御装置60によって、保持動作、押圧動作、回転動作が制御される。締結部材ランナ10は、締結部材1を保持したり、保持していた締結部材1の保持状態を解消したりすることができる。締結部材ランナ10は、締結部材1としてナットを選択した本実施形態である場合、例えば、ナットランナを好適に使用することができる。なお、締結部材ランナ10は、締結部材1としてボルトを選択した場合には、例えば、ボルトランナを好適に使用することができる。 The holding operation, pressing operation, and rotating operation of the fastening member runner 10 are controlled by the control device 60. The fastening member runner 10 can hold the fastening member 1 or cancel the holding state of the fastening member 1. When the fastening member runner 10 has the present embodiment in which a nut is selected as the fastening member 1, for example, a nut runner can be preferably used. When a bolt is selected as the fastening member 1, for example, a bolt runner can be preferably used as the fastening member runner 10.

締結部材ランナ10は、保持した締結部材1を被締結部材3に対して押圧しながら、回転軸周りに回転させる。締結部材ランナ10は、具体的には、保持した締結部材1を、被締結部材3に対して押圧しながら、回転軸周りに弛緩方向に回転させることで、被締結部材3のねじ溝の上端部に締結部材1のねじ溝の下端部を沿わせる逆回転動作を実行することができる。また、締結部材ランナ10は、保持した締結部材1を、被締結部材3に対して押圧しながら、回転軸周りに締結方向に回転させることで、被締結部材3のねじ溝に締結部材1のねじ溝を螺合させて、締結部材1を被締結部材3に締結する締結動作を実行することができる。 The fastening member runner 10 rotates the holding fastening member 1 around a rotation axis while pressing the fastening member 1 against the member to be fastened 3. Specifically, the fastening member runner 10 rotates the held fastening member 1 against the fastened member 3 in the loosening direction around the rotation axis, thereby causing the upper end of the screw groove of the fastened member 3 to be fastened. It is possible to execute a reverse rotation operation in which the lower end portion of the screw groove of the fastening member 1 is aligned with the portion. Further, the fastening member runner 10 rotates the holding fastening member 1 against the fastened member 3 in the fastening direction while pressing the fastening member 1 so that the fastening member 1 fits in the screw groove of the fastened member 3. The fastening operation of fastening the fastening member 1 to the fastened member 3 by screwing the screw grooves can be executed.

締結部材ランナ10の回転軸と、締結部材ランナ10によって保持された締結部材1の回転軸とは、互いに一致する。このことから、本実施形態に係る締結部材1の傾斜角は、締結部材ランナ10の回転軸方向と、被締結部材3の回転軸方向とが形成する角度として表すこともできる。また、締結部材ランナ10の傾斜角を変更することで、締結部材1の傾斜角を連動して変更することができる。 The rotating shaft of the fastening member runner 10 and the rotating shaft of the fastening member 1 held by the fastening member runner 10 coincide with each other. From this, the inclination angle of the fastening member 1 according to the present embodiment can be expressed as an angle formed by the rotation axis direction of the fastening member runner 10 and the rotation axis direction of the fastening member 3. Further, by changing the inclination angle of the fastening member runner 10, the inclination angle of the fastening member 1 can be changed in conjunction with the change.

物理量検出装置20は、制御装置60によって、検出動作が制御される。物理量検出装置20は、締結部材ランナ10の鉛直方向上側に取り付けられており、締結部材ランナ10の位置変化及び締結部材ランナ10への力を検出する。物理量検出装置20は、具体的には、締結部材ランナ10の軸方向への位置変化を検出する変位センサと、締結部材ランナ10への力を検出する力覚センサとを含んで構成される。変位センサは、レーザ式、LED式、超音波式、接触式、渦電流式等の周知のものが好適に用いられる。力覚センサは、周知のXYZ3方向の力及びモーメントを検出可能な6軸センサが好適に用いられ、検出したXYZ3方向の力及びモーメントの情報に基づいて、締結部材ランナ10への力、例えば、締結部材ランナ10への反力を検出することができる。 The detection operation of the physical quantity detection device 20 is controlled by the control device 60. The physical quantity detecting device 20 is attached to the upper side of the fastening member runner 10 in the vertical direction, and detects a change in the position of the fastening member runner 10 and a force on the fastening member runner 10. Specifically, the physical quantity detecting device 20 includes a displacement sensor that detects an axial position change of the fastening member runner 10 and a force sensor that detects a force on the fastening member runner 10. As the displacement sensor, a well-known displacement sensor such as a laser type, an LED type, an ultrasonic type, a contact type, or an eddy current type is preferably used. As the force sensor, a well-known 6-axis sensor capable of detecting a force and a moment in the XYZ3 direction is preferably used, and based on the detected force and moment information in the XYZ3 direction, a force on the fastening member runner 10, for example, The reaction force on the fastening member runner 10 can be detected.

締結部材ランナ傾斜装置30は、制御装置60によって、傾斜角変更動作が制御される。締結部材ランナ傾斜装置30は、物理量検出装置20を介して締結部材ランナ10の鉛直方向上側に取り付けられており、締結部材ランナ10の傾斜角を変更する装置である。締結部材ランナ傾斜装置30は、締結部材ランナ10の傾斜角を変更することに伴って、締結部材1の傾斜角を同時に変更することができる。締結部材ランナ傾斜装置30は、自動ゴニオステージが好適なものとして例示される。 The tilt angle changing operation of the fastening member runner tilting device 30 is controlled by the control device 60. The fastening member runner tilting device 30 is attached to the upper side of the fastening member runner 10 in the vertical direction via the physical quantity detecting device 20, and is a device for changing the tilt angle of the fastening member runner 10. The fastening member runner tilting device 30 can change the tilt angle of the fastening member 1 at the same time as the tilt angle of the fastening member runner 10 is changed. As the fastening member runner tilting device 30, an automatic gonio stage is exemplified as a suitable one.

締結部材ランナ移動装置40は、制御装置60によって、移動動作が制御される。締結部材ランナ移動装置40は、締結部材ランナ傾斜装置30に取り付けられており、締結部材ランナ傾斜装置30とともに締結部材ランナ10を、3次元的に移動させる装置である。締結部材ランナ移動装置40は、締結部材ランナ傾斜装置30によって制御された締結部材ランナ10の立体角を維持した状態で、締結部材ランナ10を、水平方向であるX軸方向またはY軸方向に沿って移動させたり、鉛直方向であるZ軸方向に沿って移動させたりすることができる。また、締結部材ランナ移動装置40は、常に、締結部材ランナ10の3次元的な位置の情報を取得することができる。締結部材ランナ移動装置40は、ロボットアーム及びクレーンのアーム等が好適なものとして例示される。 The moving operation of the fastening member runner moving device 40 is controlled by the control device 60. The fastening member runner moving device 40 is attached to the fastening member runner tilting device 30, and is a device that three-dimensionally moves the fastening member runner 10 together with the fastening member runner tilting device 30. The fastening member runner moving device 40 keeps the solid angle of the fastening member runner 10 controlled by the fastening member runner tilting device 30 and moves the fastening member runner 10 along the horizontal X-axis direction or Y-axis direction. It can be moved along the Z-axis direction, which is the vertical direction. Further, the fastening member runner moving device 40 can always acquire information on the three-dimensional position of the fastening member runner 10. As the fastening member runner moving device 40, a robot arm, a crane arm, and the like are exemplified as suitable.

また、締結部材ランナ傾斜装置30及び締結部材ランナ移動装置40は、一体化されて設けられてもよく、具体的には、位置及び角度を調整することが可能な多軸のロボットアーム及び多軸のクレーンのアーム等が好適なものとして例示される。 Further, the fastening member runner tilting device 30 and the fastening member runner moving device 40 may be provided integrally, and specifically, a multi-axis robot arm and a multi-axis capable of adjusting the position and angle. The arm of the crane of the above is exemplified as a suitable one.

被締結部材検出装置50は、制御装置60によって、被締結部材検出動作が制御される。被締結部材検出装置50は、締結部材ランナ10に対して水平方向に隣接した位置に、鉛直方向下方に向けて取り付けられており、被締結部材3を検出する装置である。被締結部材検出装置50は、締結部材ランナ移動装置40により、締結部材ランナ10、物理量検出装置20及び締結部材ランナ傾斜装置30と共に、移動する。被締結部材検出装置50は、光学カメラ及びレーザーカメラ等の撮像装置が好適なものとして例示され、このような撮像装置である場合、被締結部材3を鉛直方向上側から撮像し、撮像した画像を解析することで、被締結部材3の位置、並びに、外径(被締結部材3としてナットを選択した場合には内径)及びねじ溝のピッチ等の被締結部材に関するパラメータ等を検出することができる。 In the fastened member detection device 50, the fastened member detection operation is controlled by the control device 60. The fastened member detection device 50 is a device that is attached to a position horizontally adjacent to the fastened member runner 10 in the vertical direction downward and detects the fastened member 3. The fastening member detection device 50 is moved by the fastening member runner moving device 40 together with the fastening member runner 10, the physical quantity detection device 20, and the fastening member runner tilting device 30. As the fastened member detection device 50, an image pickup device such as an optical camera and a laser camera is exemplified as suitable. In the case of such an image pickup device, the fastened member 3 is imaged from the upper side in the vertical direction, and the captured image is taken. By analyzing, it is possible to detect the position of the member to be fastened 3, the outer diameter (inner diameter when the nut is selected as the member to be fastened 3), the pitch of the thread groove, and other parameters related to the member to be fastened. ..

締結システム100は、本実施形態に係る締結方法に関する情報の入力を受け付ける入力装置70をさらに備えていてもよい。また、締結システム100は、本実施形態に係る締結方法に関する情報を出力する出力装置80をさらに備えていてもよい。 The fastening system 100 may further include an input device 70 that receives input of information regarding the fastening method according to the present embodiment. Further, the fastening system 100 may further include an output device 80 that outputs information regarding the fastening method according to the present embodiment.

入力装置70は、高機能携帯電話(いわゆる、スマートフォン)を含む携帯電話機、タブレット端末、ノート型またはデスクトップ型のPC(Personal Computer)、携帯情報端末であるPDA(Personal Digital Assistant)、及び、眼鏡型や時計型のウェアラブルデバイス(Wearable Device)等に例示される情報処理端末である。 The input device 70 includes a mobile phone including a high-performance mobile phone (so-called smartphone), a tablet terminal, a notebook or desktop PC (Personal Computer), a PDA (Personal Digital Assistant) which is a mobile information terminal, and a glasses type. It is an information processing terminal exemplified by a clock-type wearable device or the like.

入力装置70は、制御装置60が実施形態に係る締結方法に関する各種電算処理を実行する際に必要となる各種情報を入力するための機能、例えば、制御装置60から送信される各種情報の入力を受け付けるための入力画面等を入力装置70の表示部に表示する機能、及び、入力を受け付けた各種情報を制御装置60に送信する機能を有する。入力装置70は、これらの様々な機能を、制御装置60を利用するためのソフトウェアまたはアプリケーションを実行したり、制御装置60を利用するためのインターネットブラウザ機能を実行したりすることで、実現する。 The input device 70 has a function for inputting various information required when the control device 60 executes various computer processes related to the fastening method according to the embodiment, for example, inputting various information transmitted from the control device 60. It has a function of displaying an input screen or the like for receiving on the display unit of the input device 70, and a function of transmitting various information for receiving the input to the control device 60. The input device 70 realizes these various functions by executing software or an application for using the control device 60, or executing an Internet browser function for using the control device 60.

出力装置80は、受信した情報に基づいて、文字、画像、動画等により表示する。出力装置80は、制御装置60が実行する実施形態に係る締結方法に関する各種電算処理の結果として得られる出力情報を出力するための機能、例えば、制御装置60から出力された出力情報を受信する機能、及び、出力情報に基づく出力画面等を出力装置80の表示部に表示する機能を有する。出力装置80は、これらの様々な機能を、制御装置60を利用するためのソフトウェアまたはアプリケーションを実行したり、制御装置60を利用するためのインターネットブラウザ機能を実行したりすることで、実現する。 The output device 80 displays characters, images, moving images, and the like based on the received information. The output device 80 has a function for outputting output information obtained as a result of various computer processing related to the fastening method according to the embodiment executed by the control device 60, for example, a function for receiving output information output from the control device 60. , And a function of displaying an output screen or the like based on the output information on the display unit of the output device 80. The output device 80 realizes these various functions by executing software or an application for using the control device 60, or executing an Internet browser function for using the control device 60.

なお、締結システム100は、本実施形態では、入力装置70と出力装置80とを別々に設けたが、本発明はこれに限定されず、入力装置70と出力装置80とが一体化された形態であってもよい。この場合、例えば、入力装置70の表示部が出力装置80として機能する。 In the fastening system 100, the input device 70 and the output device 80 are separately provided in the present embodiment, but the present invention is not limited to this, and the input device 70 and the output device 80 are integrated. It may be. In this case, for example, the display unit of the input device 70 functions as the output device 80.

制御装置60は、各装置、すなわち、締結部材ランナ10、物理量検出装置20、締結部材ランナ傾斜装置30、締結部材ランナ移動装置40、被締結部材検出装置50、入力装置70及び出力装置80と電気的に接続されており、これらの各装置の動作を制御する。 The control device 60 includes each device, that is, a fastening member runner 10, a physical quantity detecting device 20, a fastening member runner tilting device 30, a fastening member runner moving device 40, a fastened member detecting device 50, an input device 70, an output device 80, and electricity. It is connected to control the operation of each of these devices.

制御装置60は、締結システム100を制御するコンピュータシステムを含む情報処理装置である。制御装置60は、図1に示すように、処理部61と、記憶部62と、情報通信インターフェイス63と、を有する。 The control device 60 is an information processing device including a computer system that controls the fastening system 100. As shown in FIG. 1, the control device 60 includes a processing unit 61, a storage unit 62, and an information communication interface 63.

処理部61は、コントローラ(controller)であり、例えば、CPU(Central Processing Unit)やMPU(Micro Processing Unit)等によって、制御装置60内部の記憶装置である記憶部62に記憶されている各種プログラム(締結プログラムの一例に相当)がRAM(Random Access Memory)を作業領域として実行されることにより実現される。また、処理部61は、例えば、コントローラであり、ASIC(Application Specific Integrated Circuit)やFPGA(Field Programmable Gate Array)等の集積回路により実現される。処理部61は、各装置からの情報の入力を受け付けたり、制御装置60と電気的に接続されている出力装置80に締結システム100に関する各種パラメータ、計測結果、及び算出結果等の情報の出力を行ったりする情報通信インターフェイス63が接続されている。 The processing unit 61 is a controller, and various programs stored in the storage unit 62, which is a storage device inside the control device 60, by, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit) ( It is realized by executing RAM (Random Access Memory) as a work area (corresponding to an example of a fastening program). Further, the processing unit 61 is, for example, a controller, and is realized by an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array). The processing unit 61 accepts input of information from each device, and outputs information such as various parameters, measurement results, and calculation results related to the fastening system 100 to the output device 80 electrically connected to the control device 60. The information communication interface 63 to go is connected.

処理部61は、図1に示すように、記憶部62及び情報通信インターフェイス63と、互いに情報通信可能に電気的に接続されており、これらの各構成要素をそれぞれ制御する制御部として機能する。すなわち、処理部61は、記憶部62とともに、制御部として機能して、本発明の実施形態に係る締結方法を締結システム100に実行させるものである。 As shown in FIG. 1, the processing unit 61 is electrically connected to the storage unit 62 and the information communication interface 63 so as to be able to communicate with each other, and functions as a control unit that controls each of these components. That is, the processing unit 61 functions as a control unit together with the storage unit 62 to cause the fastening system 100 to execute the fastening method according to the embodiment of the present invention.

処理部61は、図1に示すように、保持動作制御部64と、逆回転動作制御部65と、押上情報検出部66と、傾斜算出部67と、傾斜状態解消部68と、締結動作制御部69と、を有する。処理部61に含まれる各部、すなわち、保持動作制御部64、逆回転動作制御部65、押上情報検出部66、傾斜算出部67、傾斜状態解消部68及び締結動作制御部69は、いずれも、処理部61が締結プログラムを実行することにより、実現される機能部である。なお、処理部61に含まれる各部の具体的な機能は、実施形態に係る締結方法の詳細な説明と併せて、説明する。 As shown in FIG. 1, the processing unit 61 includes a holding operation control unit 64, a reverse rotation operation control unit 65, a push-up information detection unit 66, an inclination calculation unit 67, an inclination state elimination unit 68, and a fastening operation control. It has a part 69 and. Each unit included in the processing unit 61, that is, the holding operation control unit 64, the reverse rotation operation control unit 65, the push-up information detection unit 66, the inclination calculation unit 67, the inclination state elimination unit 68, and the fastening operation control unit 69 are all included. It is a functional unit realized by the processing unit 61 executing the fastening program. The specific functions of each part included in the processing part 61 will be described together with a detailed description of the fastening method according to the embodiment.

記憶部62は、例えば、ROM(Read Only Memory)、RAM(Random Access Memory)、フラッシュメモリ(Flash Memory)等の半導体メモリ素子、または、ハードディスク、光ディスク等の記憶装置によって実現される。記憶部62は、締結システム100の各装置を制御するための制御信号の生成処理に必要な各種出力処理情報、及び、締結システム100の各装置から得られる受信信号の解析処理に必要な各種入力処理情報を記憶する。また、記憶部62は、締結システム100の各装置から得られる受信信号を解析して得られる各種入力情報を、随時記憶する。 The storage unit 62 is realized by, for example, a semiconductor memory element such as a ROM (Read Only Memory), a RAM (Random Access Memory), or a flash memory (Flash Memory), or a storage device such as a hard disk or an optical disk. The storage unit 62 contains various output processing information required for control signal generation processing for controlling each device of the fastening system 100, and various inputs required for analysis processing of received signals obtained from each device of the fastening system 100. Store processing information. In addition, the storage unit 62 stores various input information obtained by analyzing the received signals obtained from each device of the fastening system 100 at any time.

情報通信インターフェイス63は、処理部61と、制御装置60と電気的に接続されている各装置とを、互いに情報通信可能に接続している。情報通信インターフェイス63は、締結部材ランナ10が有する締結部材1の保持動作、押圧動作、回転動作に関する情報を、締結部材ランナ10から受信して処理部61に送信する。また、情報通信インターフェイス63は、物理量検出装置20が検出した締結部材ランナ10の位置変化及び締結部材ランナ10への反力の情報を物理量検出装置20から受信して処理部61に送信する。また、情報通信インターフェイス63は、締結部材ランナ傾斜装置30が取得した締結部材ランナ10の傾斜角の情報を締結部材ランナ傾斜装置30から受信して処理部61に送信する。また、情報通信インターフェイス63は、締結部材ランナ移動装置40が取得した締結部材ランナ10の3次元的な位置の情報を締結部材ランナ移動装置40から受信して処理部61に送信する。また、情報通信インターフェイス63は、被締結部材検出装置50が検出した被締結部材3の位置、並びに、外径(被締結部材3としてナットを選択した場合には内径)及びねじ溝のピッチ等の被締結部材に関するパラメータ等の情報を被締結部材検出装置50から受信して処理部61に送信する。また、情報通信インターフェイス63は、入力装置70から入力を受け付けた各種情報を入力装置70から受信して処理部61に送信する。 The information communication interface 63 connects the processing unit 61 and each device electrically connected to the control device 60 so as to be able to communicate with each other. The information communication interface 63 receives information regarding the holding operation, pressing operation, and rotating operation of the fastening member 1 included in the fastening member runner 10 from the fastening member runner 10 and transmits the information to the processing unit 61. Further, the information communication interface 63 receives information on the position change of the fastening member runner 10 detected by the physical quantity detecting device 20 and the reaction force on the fastening member runner 10 from the physical quantity detecting device 20 and transmits the information to the processing unit 61. Further, the information communication interface 63 receives the information on the inclination angle of the fastening member runner 10 acquired by the fastening member runner tilting device 30 from the fastening member runner tilting device 30 and transmits the information to the processing unit 61. Further, the information communication interface 63 receives the three-dimensional position information of the fastening member runner 10 acquired by the fastening member runner moving device 40 from the fastening member runner moving device 40 and transmits the information to the processing unit 61. Further, the information / communication interface 63 includes the position of the fastened member 3 detected by the fastened member detection device 50, the outer diameter (inner diameter when the nut is selected as the fastened member 3), the pitch of the thread groove, and the like. Information such as parameters related to the member to be fastened is received from the member to be fastened detection device 50 and transmitted to the processing unit 61. Further, the information communication interface 63 receives various information received from the input device 70 from the input device 70 and transmits the information to the processing unit 61.

情報通信インターフェイス63は、処理部61で生成される各情報、例えば、各装置を制御するための制御信号を処理部61から受信し、それぞれ、各装置に向けて送信する。また、情報通信インターフェイス63は、処理部61で生成される実施形態に係る締結方法に関する各種電算処理の結果として得られる出力情報を処理部61から受信し、出力装置80に向けて送信する。 The information communication interface 63 receives each information generated by the processing unit 61, for example, a control signal for controlling each device from the processing unit 61, and transmits the control signal to each device. Further, the information communication interface 63 receives the output information obtained as a result of various computer processing related to the fastening method according to the embodiment generated by the processing unit 61 from the processing unit 61, and transmits the output information to the output device 80.

実施形態に係る締結システム100の作用について以下に説明する。図3は、本発明の実施形態に係る締結方法を示すフローチャートである。締結システム100によって実行される締結方法について、締結システム100の制御装置60の処理部61における各部の詳細な機能と併せて、以下に説明する。 The operation of the fastening system 100 according to the embodiment will be described below. FIG. 3 is a flowchart showing a fastening method according to an embodiment of the present invention. The fastening method executed by the fastening system 100 will be described below together with the detailed functions of each portion in the processing unit 61 of the control device 60 of the fastening system 100.

本発明の実施形態に係る締結方法は、締結部材1を被締結部材3に締結する方法であり、図3に示すように、締結部材保持ステップS11と、逆回転動作ステップS12と、押上情報検出ステップS13と、傾斜算出ステップS14と、傾斜状態解消ステップS15と、締結ステップS16と、を有する。 The fastening method according to the embodiment of the present invention is a method of fastening the fastening member 1 to the fastened member 3, and as shown in FIG. 3, the fastening member holding step S11, the reverse rotation operation step S12, and the push-up information detection. It includes a step S13, an inclination calculation step S14, an inclination state elimination step S15, and a fastening step S16.

締結部材保持ステップS11は、保持動作制御部64が、締結部材ランナ10に、被締結部材3と螺合する締結部材1を保持させるステップである。 The fastening member holding step S11 is a step in which the holding operation control unit 64 causes the fastening member runner 10 to hold the fastening member 1 screwed with the fastening member 3.

締結部材保持ステップS11では、保持動作制御部64が、まず、保持する締結部材1についての内径(締結部材1としてボルトを選択した場合には外径)及びねじ溝のピッチ等の締結部材に関するパラメータの情報を取得する。締結部材保持ステップS11では、保持動作制御部64が、次に、締結部材ランナ移動装置40を制御して、取得した締結部材に関するパラメータを有する締結部材1の供給部へ締結部材ランナ10を移動させる。締結部材保持ステップS11では、保持動作制御部64が、その次に、締結部材ランナ10を制御して、当該パラメータを有する締結部材1を締結部材ランナ10に保持させる。締結部材保持ステップS11では、保持動作制御部64が、最後に、締結部材ランナ移動装置40を制御して、当該パラメータを有する締結部材1を保持させた締結部材ランナ10を、被締結部材3の位置へ移動させる。 In the fastening member holding step S11, the holding operation control unit 64 first holds parameters related to the fastening member such as the inner diameter (outer diameter when a bolt is selected as the fastening member 1) and the pitch of the screw groove for the fastening member 1 to be held. Get information about. In the fastening member holding step S11, the holding operation control unit 64 then controls the fastening member runner moving device 40 to move the fastening member runner 10 to the supply unit of the fastening member 1 having the acquired parameters related to the fastening member. .. In the fastening member holding step S11, the holding operation control unit 64 then controls the fastening member runner 10 to hold the fastening member 1 having the parameter in the fastening member runner 10. In the fastening member holding step S11, the holding operation control unit 64 finally controls the fastening member runner moving device 40 to hold the fastening member 1 having the parameter, and the fastening member runner 10 is transferred to the fastening member 3. Move to position.

なお、締結部材保持ステップS11では、保持動作制御部64が、3種類の方法で、保持する締結部材1についての内径(締結部材1としてボルトを選択した場合には外径)及びねじ溝のピッチ等の締結部材に関するパラメータの情報、並びに、締結部材1を保持させた締結部材ランナ10を移動させる位置の情報を取得することができる。1種類目の方法では、保持動作制御部64が、被締結部材検出装置50を制御して、被締結部材検出装置50に被締結部材3を検出させることで、被締結部材3についての位置、並びに、外径(被締結部材3としてナットを選択した場合には内径)及びねじ溝のピッチ等の被締結部材に関するパラメータの情報を取得し、当該被締結部材に関するパラメータの情報に基づいて、被締結部材3と螺合する締結部材1についての締結部材に関するパラメータの情報を取得する方法である。2種類目の方法では、保持動作制御部64が、入力装置70を介して、締結部材1についての締結部材に関するパラメータの情報及び移動させる位置の情報の入力を受け付けることで、これらの情報を取得する方法である。3種類目の方法では、保持動作制御部64が、予め制御装置60の記憶部62に記憶されている締結部材1についての締結部材に関するパラメータの情報及び移動させる位置の情報を、記憶部62から取得する方法である。 In the fastening member holding step S11, the holding operation control unit 64 holds the fastening member 1 by three types of methods: the inner diameter (outer diameter when a bolt is selected as the fastening member 1) and the pitch of the screw groove. It is possible to acquire information on parameters related to the fastening member such as, and information on the position where the fastening member runner 10 holding the fastening member 1 is moved. In the first type of method, the holding operation control unit 64 controls the fastened member detecting device 50 to cause the fastened member detecting device 50 to detect the fastened member 3, thereby determining the position of the fastened member 3. In addition, information on parameters related to the member to be fastened, such as the outer diameter (inner diameter when the nut is selected as the member to be fastened 3) and the pitch of the thread groove, is acquired, and based on the information on the parameters related to the member to be fastened, the wire is covered. This is a method of acquiring parameter information regarding a fastening member for a fastening member 1 that is screwed with the fastening member 3. In the second type of method, the holding operation control unit 64 acquires the information by receiving the input of the parameter information about the fastening member and the information of the moving position for the fastening member 1 via the input device 70. How to do it. In the third type of method, the holding operation control unit 64 previously stores the parameter information regarding the fastening member 1 and the information of the position to be moved about the fastening member 1 stored in the storage unit 62 of the control device 60 from the storage unit 62. How to get it.

また、締結部材保持ステップS11では、保持動作制御部64が、被締結部材検出装置50に被締結部材3を検出させた場合、被締結部材検出装置50に検出させた被締結部材3についての位置、並びに、外径(被締結部材3としてナットを選択した場合には内径)及びねじ溝のピッチ等の被締結部材に関するパラメータの情報に基づいて、締結部材ランナ移動装置40により、締結部材ランナ10を被締結部材3の回転軸方向から被締結部材3に接近移動させることが好ましく、この場合、締結部材1を被締結部材3に接近移動させた際の締結部材1の回転軸方向の被締結部材3の回転軸方向に対する傾斜を抑制することができる。 Further, in the fastening member holding step S11, when the holding operation control unit 64 causes the fastened member detecting device 50 to detect the fastened member 3, the position of the fastened member 3 detected by the fastened member detecting device 50. , And the fastening member runner 10 by the fastening member runner moving device 40 based on the information of parameters related to the fastening member such as the outer diameter (inner diameter when the nut is selected as the fastening member 3) and the pitch of the thread groove. Is preferably moved closer to the fastened member 3 from the rotation axis direction of the fastened member 3, and in this case, the fastened member 1 is fastened in the rotation axis direction when the fastened member 1 is moved close to the fastened member 3. The inclination of the member 3 with respect to the rotation axis direction can be suppressed.

逆回転動作ステップS12は、逆回転動作制御部65が、締結部材ランナ10を制御することで、締結部材ランナ10に保持された締結部材1を被締結部材3に対して押圧しながら弛緩方向に回転させる逆回転動作を実行するステップである。 In the reverse rotation operation step S12, the reverse rotation operation control unit 65 controls the fastening member runner 10 to press the fastening member 1 held by the fastening member runner 10 against the fastened member 3 in the loosening direction. This is a step of executing a reverse rotation operation to rotate.

逆回転動作ステップS12は、詳細には、押圧ステップS12−1と、弛緩方向回転ステップS12−2と、押上現象引起ステップS12−3と、を有する。図4は、図3の締結方法を説明する説明図である。逆回転動作ステップS12の詳細について、図4を用いて以下に説明する。 In detail, the reverse rotation operation step S12 includes a pressing step S12-1, a relaxation direction rotation step S12-2, and a push-up phenomenon triggering step S12-3. FIG. 4 is an explanatory diagram illustrating the fastening method of FIG. The details of the reverse rotation operation step S12 will be described below with reference to FIG.

押圧ステップS12−1は、逆回転動作制御部65が、締結部材ランナ10を制御することで、締結部材ランナ10に保持された締結部材1を被締結部材3に対して押圧する押圧状態を形成するステップである。押圧ステップS12−1では、より詳細には、図4の1番左側に示すように、逆回転動作制御部65が、締結部材ランナ10に保持された締結部材1のねじ山の被締結部材3と対向している側の領域を、被締結部材3のねじ山の締結部材1と対向している側の領域に対して、まず接触させて、その後、互いに相対的に回転動作が可能な程度に押圧することで、締結部材1の被締結部材3に対する弛緩方向の回転に従って押上現象を引き起こすことが可能な図4の左側から2番目に示すような状態を形成する。 In the pressing step S12-1, the reverse rotation operation control unit 65 controls the fastening member runner 10 to form a pressing state in which the fastening member 1 held by the fastening member runner 10 is pressed against the fastened member 3. It is a step to do. In the pressing step S12-1, as shown on the leftmost side of FIG. 4, the reverse rotation operation control unit 65 is held by the fastening member runner 10, and the threaded member 3 of the thread of the fastening member 1 is held. The region on the side facing the fastening member 3 is first brought into contact with the region on the side facing the fastening member 1 of the thread of the thread to be fastened, and then the region can rotate relative to each other. By pressing against, a state as shown second from the left side of FIG. 4 is formed, which can cause a push-up phenomenon according to the rotation of the fastening member 1 with respect to the member to be fastened 3 in the relaxation direction.

弛緩方向回転ステップS12−2は、逆回転動作制御部65が、締結部材ランナ10を制御することで、押圧ステップS12−1で形成した押圧状態を維持しながら、締結部材ランナ10を被締結部材3に対して弛緩方向に回転させることで、締結部材ランナ10に保持された締結部材1を被締結部材3に対して弛緩方向に回転させるステップである。弛緩方向回転ステップS12−2では、より詳細には、図4の左側から2番目に示すように、逆回転動作制御部65が、締結部材ランナ10に保持された締結部材1のねじ山の被締結部材3と対向している側の領域を、被締結部材3のねじ山の締結部材1と対向している側の領域に対して、接触した状態を維持して、相対的に弛緩方向に移動させて沿わせる。これにより、締結部材ランナ10に保持された締結部材1のねじ山の被締結部材3と対向している側の領域が、被締結部材3のねじ山の締結部材1と対向している側の領域の上を滑り、被締結部材3のねじ山の螺旋方向の上側に向かって移動する。 In the relaxation direction rotation step S12-2, the reverse rotation operation control unit 65 controls the fastening member runner 10, so that the fastening member runner 10 is fastened to the fastening member runner 10 while maintaining the pressing state formed in the pressing step S12-1. This is a step of rotating the fastening member 1 held by the fastening member runner 10 in the loosening direction with respect to the member to be fastened 3 by rotating the fastening member 1 in the loosening direction with respect to 3. In the relaxation direction rotation step S12-2, more specifically, as shown second from the left side in FIG. 4, the reverse rotation operation control unit 65 covers the thread of the fastening member 1 held by the fastening member runner 10. The region on the side facing the fastening member 3 is maintained in contact with the region on the side facing the fastening member 1 of the thread of the thread to be fastened, and is relatively in the relaxation direction. Move it along. As a result, the region of the fastening member 1 held by the fastening member runner 10 on the side of the thread of the fastening member 1 facing the thread to be fastened 3 is on the side of the fastening member 3 facing the thread of the fastening member 1. It slides over the region and moves upward in the spiral direction of the thread of the member 3 to be fastened.

押上現象引起ステップS12−3は、逆回転動作制御部65が、締結部材ランナ10を制御することで、弛緩方向回転ステップS12−2で被締結部材3のねじ山上を移動する締結部材1のねじ山が、被締結部材3のねじ山に対して押上現象を引き起こさせるステップである。押上現象引起ステップS12−3では、より詳細には、図4の中央に示すように、逆回転動作制御部65が、被締結部材3のねじ山上を移動する締結部材1のねじ山の先端部分が、被締結部材3のねじ山の先端を通過して、被締結部材3のねじ山の先端に対して1周期分だけ螺旋方向の下側の領域上に移動するという押上現象を引き起こさせる。 In the push-up phenomenon raising step S12-3, the reverse rotation operation control unit 65 controls the fastening member runner 10, and the screw of the fastening member 1 that moves on the thread of the fastening member 3 in the relaxation direction rotation step S12-2. The ridge is a step that causes a push-up phenomenon with respect to the thread of the member 3 to be fastened. In the push-up phenomenon raising step S12-3, more specifically, as shown in the center of FIG. 4, the reverse rotation operation control unit 65 moves on the thread of the fastened member 3 at the tip of the thread of the fastening member 1. However, it passes through the tip of the thread of the member to be fastened 3 and moves to the lower region in the spiral direction by one cycle with respect to the tip of the thread of the member to be fastened 3, causing a push-up phenomenon.

押上情報検出ステップS13は、押上情報検出部66が、物理量検出装置20を制御することで、逆回転動作ステップS12による逆回転動作の際に生じる締結部材1の被締結部材3に対する押上現象における押上情報を検出するステップである。 In the push-up information detection step S13, the push-up information detection unit 66 controls the physical quantity detection device 20, and the push-up phenomenon occurs in the push-up phenomenon of the fastening member 1 with respect to the fastened member 3 that occurs during the reverse rotation operation in the reverse rotation operation step S12. This is the step of detecting information.

押上情報検出ステップS13では、具体的には、押上情報検出部66が、物理量検出装置20に、押上現象における押上情報として、押上情報の1つのパラメータである締結部材ランナ10の位置変化と、押上情報のもう1つのパラメータである締結部材ランナ10への反力とを検出させる。 In the push-up information detection step S13, specifically, the push-up information detection unit 66 informs the physical quantity detection device 20 that the position change of the fastening member runner 10, which is one parameter of the push-up information, and the push-up as the push-up information in the push-up phenomenon. Another parameter of the information, the reaction force on the fastening member runner 10, is detected.

図5は、図3の押上情報検出ステップS13を説明する説明図である。図5の上側のグラフは、横軸が時間であり、縦軸が締結部材ランナ10の軸方向(Z´軸方向)の位置座標であり、物理量検出装置20の変位センサによって検出される押上情報の1つのパラメータである締結部材ランナ10の位置変化の情報を示している。図5の下側のグラフは、横軸が時間であり、縦軸が締結部材ランナ10の反力であり、物理量検出装置20の力覚センサによって検出される押上情報の1つのパラメータである締結部材ランナ10の反力の情報を示している。締結部材ランナ10の反力の情報は、締結部材ランナ10の反力のX´軸方向の成分の情報と、締結部材ランナ10の反力のY´軸方向の成分の情報と、を含む。 FIG. 5 is an explanatory diagram illustrating the push-up information detection step S13 of FIG. In the upper graph of FIG. 5, the horizontal axis is time, the vertical axis is the position coordinates of the fastening member runner 10 in the axial direction (Z'axis direction), and the push-up information detected by the displacement sensor of the physical quantity detection device 20. Information on the position change of the fastening member runner 10 which is one of the parameters of the above is shown. In the lower graph of FIG. 5, the horizontal axis is time, the vertical axis is the reaction force of the fastening member runner 10, and the fastening is one parameter of the push-up information detected by the force sensor of the physical quantity detection device 20. Information on the reaction force of the member runner 10 is shown. The information on the reaction force of the fastening member runner 10 includes information on the component of the reaction force of the fastening member runner 10 in the X'axial direction and information on the component of the reaction force of the fastening member runner 10 in the Y'axial direction.

ここで、X´軸方向、Y´軸方向及びZ´軸方向は、締結部材ランナ10及び物理量検出装置20を基準とした座標系のことを表しており、被締結部材ユニット2及び被締結部材3を基準としたX軸方向、Y軸方向及びZ軸方向とは異なり、特に、締結部材1の回転軸方向が被締結部材3の回転軸方向に対して傾斜状態にある場合には、X´軸方向、Y´軸方向及びZ´軸方向と、X軸方向、Y軸方向及びZ軸方向とは、互いに一致しない座標系となる。 Here, the X'axis direction, the Y'axis direction, and the Z'axis direction represent a coordinate system based on the fastening member runner 10 and the physical quantity detecting device 20, and the fastening member unit 2 and the fastening member. Unlike the X-axis direction, the Y-axis direction, and the Z-axis direction based on 3, X is particularly high when the rotation axis direction of the fastening member 1 is inclined with respect to the rotation axis direction of the fastened member 3. The'axis direction, Y'axis direction, and Z'axis direction and the X-axis direction, Y-axis direction, and Z-axis direction are coordinate systems that do not match each other.

図5の上側のグラフにおいて、締結部材ランナ10の軸方向の位置が徐々に上昇している領域が、逆回転動作に伴い、締結部材ランナ10に保持された締結部材1のねじ山の被締結部材3と対向している側の領域が、被締結部材3のねじ山の締結部材1と対向している側の領域の上を滑り、被締結部材3のねじ山の螺旋方向の上側に向かって移動していることを示している。また、図5の上側のグラフにおいて、締結部材ランナ10の軸方向の位置が短時間で急激に下降している領域が、被締結部材3のねじ山上を移動する締結部材1のねじ山の先端部分が、被締結部材3のねじ山の先端を通過して、被締結部材3のねじ山の先端に対して1周期分だけ螺旋方向の下側の領域上に移動するという押上現象を表している。押上情報検出ステップS13では、押上情報検出部66が、図5の上側のグラフの、締結部材ランナ10の軸方向の位置が短時間で急激に下降している領域における下降量を、締結部材ランナ10の位置変化lとして検出する。 In the upper graph of FIG. 5, the region where the axial position of the fastening member runner 10 is gradually raised is the thread of the fastening member 1 held by the fastening member runner 10 due to the reverse rotation operation. The region on the side facing the member 3 slides on the region on the side facing the fastening member 1 of the thread of the member 3 to be fastened, and faces upward in the spiral direction of the thread of the member 3 to be fastened. Indicates that it is moving. Further, in the upper graph of FIG. 5, the region where the axial position of the fastening member runner 10 is rapidly lowered in a short time is the tip of the screw thread of the fastening member 1 that moves on the thread of the fastening member 3. Represents the push-up phenomenon in which the portion passes through the tip of the thread of the member 3 to be fastened and moves on the lower region in the spiral direction for one cycle with respect to the tip of the thread of the member 3 to be fastened. There is. In the push-up information detection step S13, the push-up information detection unit 66 determines the amount of descent in the region where the axial position of the fastening member runner 10 is rapidly lowered in a short time in the upper graph of FIG. It is detected as a position change l of 10.

締結部材ランナ10への反力は、締結部材ランナ10に保持された締結部材1のねじ山の被締結部材3と対向している側の領域が、被締結部材3のねじ山の締結部材1と対向している側の領域に押し付けられることに伴い、締結部材1を保持している締結部材ランナ10に対して生じる反作用の力である。図5の下側のグラフにおいて、0でない正の値の反力が検出されている領域が、逆回転動作に伴い、締結部材ランナ10に保持された締結部材1のねじ山の被締結部材3と対向している側の領域が、被締結部材3のねじ山の締結部材1と対向している側の領域の上を滑り、被締結部材3のねじ山の螺旋方向の上側に向かって移動していることに伴い、締結部材ランナ10への反力が生じていることを示している。また、図5の下側のグラフにおいて、締結部材ランナ10の反力が短時間で急激に下降している領域が、被締結部材3のねじ山上を移動する締結部材1のねじ山の先端部分が、被締結部材3のねじ山の先端を通過して、被締結部材3のねじ山の先端に対して1周期分だけ螺旋方向の下側の領域上に移動するという押上現象に伴い、締結部材ランナ10への反力が消滅したことを示している。押上情報検出ステップS13では、押上情報検出部66が、図5の下側のグラフの締結部材ランナ10への反力のX´軸方向の成分と、締結部材ランナ10の反力のY´軸方向の成分とを、それぞれ締結部材ランナ10への反力FX´,FY´として検出する。 The reaction force to the fastening member runner 10 is such that the region of the thread of the fastening member 1 held by the fastening member runner 10 on the side facing the thread to be fastened 3 is the fastening member 1 of the thread of the fastening member 3. This is a reaction force generated on the fastening member runner 10 holding the fastening member 1 as a result of being pressed against the region on the side facing the fastening member 1. In the lower graph of FIG. 5, the region where the reaction force of a positive value other than 0 is detected is the threaded member 3 of the thread of the fastening member 1 held by the fastening member runner 10 due to the reverse rotation operation. The region on the side facing the thread slides on the region on the side facing the fastening member 1 of the thread of the member 3 to be fastened, and moves upward in the spiral direction of the thread of the member 3 to be fastened. It is shown that a reaction force is generated on the fastening member runner 10 as a result of this. Further, in the lower graph of FIG. 5, the region where the reaction force of the fastening member runner 10 suddenly drops in a short time is the tip portion of the thread of the fastening member 1 that moves on the thread of the member 3 to be fastened. However, due to the push-up phenomenon, which passes through the tip of the thread of the member 3 to be fastened and moves to the lower region in the spiral direction by one cycle with respect to the tip of the thread of the member 3 to be fastened. It shows that the reaction force on the member runner 10 has disappeared. In the push-up information detection step S13, the push-up information detection unit 66 determines the component of the reaction force on the fastening member runner 10 in the lower graph of FIG. 5 in the X'axis direction and the reaction force of the fastening member runner 10 on the Y'axis. The components in the direction are detected as reaction forces FX ′ and FY on the fastening member runner 10, respectively.

以上のように、押上情報検出ステップS13では、押上情報検出部66が、図5の各グラフに示すような締結部材ランナ10の位置の時間変化及び締結部材ランナ10への反力の時間変化の検出結果の情報を、物理量検出装置20を介して取得し、物理量検出装置20を介して取得した検出結果の情報に基づいて、押上情報として、締結部材ランナ10の位置変化lと、締結部材ランナ10への反力FX´,FY´とを検出する。 As described above, in the push-up information detection step S13, the push-up information detection unit 66 changes the position of the fastening member runner 10 over time and the reaction force on the fastening member runner 10 over time as shown in each graph of FIG. Information on the detection result is acquired via the physical quantity detection device 20, and based on the information on the detection result acquired via the physical quantity detection device 20, the position change l of the fastening member runner 10 and the fastening member runner are used as push-up information. reaction force to the 10 F X', detects the F Y'.

傾斜算出ステップS14は、傾斜算出部67が、押上情報検出ステップS13で検出した押上情報に基づいて、締結部材1の回転軸方向の被締結部材3の回転軸方向に対する傾斜状態を算出するステップである。 The inclination calculation step S14 is a step in which the inclination calculation unit 67 calculates the inclination state of the fastening member 1 in the rotation axis direction with respect to the rotation axis direction based on the push-up information detected in the push-up information detection step S13. is there.

傾斜算出ステップS14では、詳細には、傾斜算出部67が、逆回転動作の際の押上情報の1つのパラメータである締結部材ランナ10の位置変化lに基づいて、傾斜状態の1つのパラメータである締結部材ランナ10の回転軸方向の被締結部材3の回転軸方向に対する傾斜角θを算出し、逆回転動作の際の押上情報のもう1つのパラメータである締結部材ランナ10への反力FX´,FY´に基づいて、傾斜状態のもう1つのパラメータである締結部材ランナ10の回転軸方向の被締結部材3の回転軸方向に対する傾斜方向φを算出する。 In the inclination calculation step S14, in detail, the inclination calculation unit 67 is one parameter of the inclination state based on the position change l of the fastening member runner 10 which is one parameter of the push-up information at the time of the reverse rotation operation. calculating the inclination angle θ of the workpieces 3 in the rotation axis direction of the fastening member runner 10 relative to the rotational axis direction, the reaction force F X of the fastening member runner 10 is another parameter of the push-up information during the reverse rotation operation Based on and FY , the inclination direction φ with respect to the rotation axis direction of the fastened member 3 in the rotation axis direction of the fastening member runner 10, which is another parameter of the inclined state, is calculated.

図6及び図7は、図3の傾斜算出ステップS14を説明する説明図である。図6は、締結部材ランナ10の位置変化lに基づいて傾斜角θを算出することについて説明する説明図であり、図7は、締結部材ランナ10への反力FX´,FY´に基づいて傾斜方向φを算出することについて説明する説明図である。図6は、締結部材ランナ10及び締結部材ランナ10に保持されている締結部材1の回転軸方向において被締結部材3の回転軸方向である+Z軸方向に最も傾斜している部分を含むX´´Z平面における断面図である。図7は、図6におけるX´´軸方向とX´´軸方向及びZ軸方向に直交するY´´軸方向と、締結部材ランナ10及び物理量検出装置20を基準とした座標系であるX´軸方向及びY´軸方向との相関関係を、+Z方向から見た図である。 6 and 7 are explanatory views for explaining the inclination calculation step S14 of FIG. FIG. 6 is an explanatory view for explaining the calculation of the inclination angle θ based on the position change l of the fastening member runner 10, and FIG. 7 shows the reaction forces FX ′ and FY on the fastening member runner 10. It is explanatory drawing explaining to calculate the inclination direction φ based on. FIG. 6 shows an X'including a portion that is most inclined in the + Z axis direction, which is the rotation axis direction of the fastened member 3, in the rotation axis direction of the fastening member runner 10 and the fastening member 1 held by the fastening member runner 10. It is a cross-sectional view in the'Z plane. FIG. 7 is a coordinate system based on the X ″ axial direction in FIG. 6, the Y ″ axial direction orthogonal to the X ″ axial direction and the Z axis direction, and the fastening member runner 10 and the physical quantity detecting device 20. It is a figure which looked at the correlation with the'axis direction and the Y'axis direction from the + Z direction.

発明者らは、鋭意検討の結果、押上情報の1つのパラメータである締結部材ランナ10の位置変化lと、傾斜状態の1つのパラメータである傾斜角θとが、被締結部材3において軸方向に隣接するねじ山の間隔であるピッチpを用いて、図6に示すように、以下の(式1)の関係を満たすことを見出した。 As a result of diligent studies, the inventors have found that the position change l of the fastening member runner 10, which is one parameter of the push-up information, and the tilt angle θ, which is one parameter of the tilted state, are axially determined in the fastened member 3. As shown in FIG. 6, it was found that the following relationship (Equation 1) is satisfied by using the pitch p, which is the interval between adjacent threads.

cosθ=p/l ただし、0°≦θ≦90° (式1) cos θ = p / l However, 0 ° ≤ θ ≤ 90 ° (Equation 1)

よって、この(式1)に基づいて傾斜角θを算出する式は、以下の(式2)となる。 Therefore, the formula for calculating the inclination angle θ based on this (Equation 1) is the following (Equation 2).

θ=cos−1(p/l) ただし、0°≦θ≦90° (式2) θ = cos -1 (p / l) However, 0 ° ≤ θ ≤ 90 ° (Equation 2)

傾斜算出ステップS14では、傾斜算出部67が、(式2)の関係を適用して、締結部材ランナ10の位置変化lに基づいて傾斜角θを算出することができる。 In the inclination calculation step S14, the inclination calculation unit 67 can apply the relationship of (Equation 2) to calculate the inclination angle θ based on the position change l of the fastening member runner 10.

また、発明者らは、鋭意検討の結果、押上情報のもう1つのパラメータである締結部材ランナ10への反力FX´,FY´と、傾斜状態のもう1つのパラメータである傾斜方向φとが、図7に示すように、締結部材ランナ10及び物理量検出装置20を基準とした座標系におけるX´軸方向を基準とすると、以下の(式3)の関係を満たすことを見出した。 Moreover, the inventors have made intensive studies result, the reaction force F X'to the fastening member runner 10 is another parameter of the push-up information, F Y'the inclination direction φ is another parameter of the inclined state As shown in FIG. 7, it was found that the following relationship (Equation 3) is satisfied when the X'axis direction in the coordinate system based on the fastening member runner 10 and the physical quantity detecting device 20 is used as a reference.

tanφ=FX´/FY´ ただし、0°≦φ≦90° (式3) tan φ = FX ' / FY'However , 0 ° ≤ φ ≤ 90 ° (Equation 3)

よって、この(式3)に基づいて傾斜方向φを算出する式は、以下の(式4)となる。 Therefore, the formula for calculating the inclination direction φ based on this (Equation 3) is the following (Equation 4).

φ=tan−1(FX´/FY´) ただし、0°≦φ≦90° (式4) φ = tan -1 ( FX' / FY' ) However, 0 ° ≤ φ ≤ 90 ° (Equation 4)

傾斜算出ステップS14では、傾斜算出部67が、(式4)の関係を適用して、締結部材ランナ10への反力FX´,FY´に基づいて、締結部材ランナ10及び物理量検出装置20を基準とした座標系におけるX´軸方向を基準として+Z方向から見て反時計回りに設定された相対角度座標で示される傾斜方向φを算出することができる。 In the inclination calculation step S14, the inclination calculation unit 67 applies the relationship of (Equation 4) to the fastening member runner 10 and the physical quantity detecting device based on the reaction forces FX ′ and FY to the fastening member runner 10. It is possible to calculate the inclination direction φ indicated by the relative angular coordinates set counterclockwise when viewed from the + Z direction with reference to the X'axis direction in the coordinate system with reference to 20.

傾斜状態解消ステップS15は、傾斜状態解消部68が、締結部材ランナ傾斜装置30を制御することで、傾斜算出ステップS14で算出した傾斜状態に基づいて、傾斜状態を解消するステップである。 The tilted state canceling step S15 is a step in which the tilted state canceling unit 68 controls the fastening member runner tilting device 30 to cancel the tilted state based on the tilted state calculated in the tilting calculation step S14.

傾斜状態解消ステップS15では、具体的には、傾斜状態解消部68が、締結部材ランナ傾斜装置30により、傾斜方向φにおいて、傾斜角θを解消する方向に、図4の右側から2番目に示すように、締結部材ランナ10の傾斜角を変更させることで、締結部材1の回転軸方向の被締結部材3の回転軸方向に対する傾斜を解消する。 In the tilted state canceling step S15, specifically, the tilted state canceling portion 68 is shown second from the right side in FIG. 4 in the direction in which the tilting angle θ is eliminated in the tilting direction φ by the fastening member runner tilting device 30. As described above, by changing the inclination angle of the fastening member runner 10, the inclination of the fastening member 1 in the rotation axis direction with respect to the rotation axis direction is eliminated.

なお、傾斜状態解消ステップS15では、傾斜状態解消部68が、傾斜算出ステップS14で算出した傾斜状態に基づいて、傾斜角θが所定の閾値以下であるかを判定する傾斜有無判定ステップを有していてもよい。傾斜状態解消ステップS15では、傾斜有無判定ステップを有する場合、傾斜状態解消部68が、傾斜有無判定ステップで傾斜角θが所定の閾値より大きい角度であると判定した場合には、上記と同様に、傾斜方向φにおいて傾斜角θを解消する方向に締結部材ランナ傾斜装置30により締結部材ランナ10の傾斜角を変更させる動作を実行し、傾斜有無判定ステップで傾斜角θが所定の閾値以下であると判定した場合には、この動作を省略することができる。 In the tilt state elimination step S15, the tilt state elimination unit 68 has a tilt presence / absence determination step of determining whether the tilt angle θ is equal to or less than a predetermined threshold value based on the tilt state calculated in the tilt calculation step S14. You may be. In the tilt state canceling step S15, when the tilt state canceling step 68 has the tilt state canceling step, when the tilt state canceling unit 68 determines in the tilt state canceling step that the tilt angle θ is larger than a predetermined threshold value, the same as described above. , The fastening member runner tilting device 30 executes an operation of changing the tilting angle of the fastening member runner 10 in the direction of eliminating the tilting angle θ in the tilting direction φ, and the tilting angle θ is equal to or less than a predetermined threshold value in the tilting presence / absence determination step. If it is determined, this operation can be omitted.

締結ステップS16は、締結動作制御部69が、締結部材ランナ10を制御することで、傾斜状態解消ステップS15で傾斜状態を解消させた状態で、締結部材1を被締結部材3に締結するステップである。 In the fastening step S16, the fastening operation control unit 69 controls the fastening member runner 10 to eliminate the tilted state in the tilted state canceling step S15, and the fastening member 1 is fastened to the fastened member 3. is there.

締結ステップS16では、具体的には、締結動作制御部69が、傾斜状態解消ステップS15で傾斜状態を解消させた状態下において、締結部材ランナ10により、保持した締結部材1を、被締結部材3に対して押圧しながら、回転軸周りに締結方向に回転させることで、被締結部材3のねじ溝に締結部材1のねじ溝を螺合させて、締結部材1を被締結部材3に締結する締結動作を実行することができる。締結ステップS16では、締結動作制御部69が、傾斜状態解消ステップS15で傾斜状態を解消させた状態下で、すなわち、締結部材1の回転軸方向が被締結部材3の回転軸方向に対して要求された傾斜の少ない姿勢を取る状態下で、回転軸方向締結動作を実行するので、締結部材1を被締結部材3に締結する締結部材1の締結の信頼性を向上させることができる。 In the fastening step S16, specifically, the fastening member 1 held by the fastening member runner 10 under the state where the fastening operation control unit 69 cancels the tilted state in the tilted state canceling step S15 is held by the fastening member 3 By rotating in the fastening direction around the rotation axis while pressing against, the screw groove of the fastening member 1 is screwed into the thread groove of the fastening member 3, and the fastening member 1 is fastened to the fastening member 3. The fastening operation can be performed. In the fastening step S16, the fastening operation control unit 69 requests the rotation axis direction of the fastening member 1 with respect to the rotation axis direction of the fastened member 3 under the state in which the tilting state is resolved in the tilting state elimination step S15. Since the fastening operation in the rotation axis direction is executed in a state of taking a posture with a small inclination, it is possible to improve the reliability of fastening the fastening member 1 for fastening the fastening member 1 to the member to be fastened 3.

実施形態に係る締結システム100及び締結方法は、以上のような構成を有するので、締結部材1の回転軸方向の被締結部材3の回転軸方向に対する傾斜状態を算出して、この傾斜状態を解消させ、傾斜状態を解消させた状態で締結部材1の締結をすることができるので、締結部材1の回転軸方向が被締結部材3の回転軸方向に対して傾斜して供給される場合でも、締結部材1の締結の信頼性の低下を抑制することができる。また、実施形態に係る締結システム100及び締結方法は、締結部材1の締結の信頼性の低下を抑制することにより、締結部材1の締結をした製造物の信頼性の低下に加えて、締結部材1の締結に係る時間及びコストを削減することもできる。 Since the fastening system 100 and the fastening method according to the embodiment have the above-described configuration, the tilted state of the fastened member 1 in the rotation axis direction with respect to the rotation axis direction is calculated to eliminate this tilted state. Since the fastening member 1 can be fastened in a state where the tilted state is eliminated, even when the rotation axis direction of the fastening member 1 is tilted with respect to the rotation axis direction of the fastened member 3 to be supplied. It is possible to suppress a decrease in the reliability of fastening the fastening member 1. Further, in the fastening system 100 and the fastening method according to the embodiment, by suppressing the decrease in the reliability of the fastening of the fastening member 1, in addition to the decrease in the reliability of the product in which the fastening member 1 is fastened, the fastening member It is also possible to reduce the time and cost related to the conclusion of 1.

また、実施形態に係る締結システム100及び締結方法は、制御装置60が、逆回転動作の際の押上情報の1つのパラメータである締結部材ランナ10の位置変化lに基づいて、傾斜状態の1つのパラメータである締結部材ランナ10の回転軸方向の被締結部材3の回転軸方向に対する傾斜角θを算出し、逆回転動作の際の押上情報のもう1つのパラメータである締結部材ランナ10への反力FX´,FY´に基づいて、傾斜状態のもう1つのパラメータである締結部材ランナ10の回転軸方向の被締結部材3の回転軸方向に対する傾斜方向φを算出し、傾斜方向φにおいて、傾斜角θを解消する方向に、締結部材ランナ傾斜装置30に締結部材ランナ10の傾斜角を変更させている。このため、実施形態に係る締結システム100及び締結方法は、締結部材1の回転軸方向の被締結部材3の回転軸方向に対する傾斜状態をより詳細により正確に算出することができるので、締結部材1の回転軸方向が被締結部材3の回転軸方向に対して傾斜して供給される場合でも、締結部材1の締結の信頼性の低下をさらに抑制することができる。 Further, in the fastening system 100 and the fastening method according to the embodiment, the control device 60 is in an inclined state based on the position change l of the fastening member runner 10, which is one parameter of the push-up information at the time of the reverse rotation operation. The inclination angle θ of the fastening member runner 10 in the rotation axis direction with respect to the rotation axis direction, which is a parameter, is calculated, and the reaction to the fastening member runner 10, which is another parameter of the push-up information during the reverse rotation operation, is obtained. Based on the forces FX ′ and FY , the inclination direction φ with respect to the rotation axis direction of the fastened member 3 in the rotation axis direction of the fastening member runner 10, which is another parameter of the inclination state, is calculated, and in the inclination direction φ. , The fastening member runner tilting device 30 is made to change the tilting angle of the fastening member runner 10 in the direction of eliminating the tilt angle θ. Therefore, in the fastening system 100 and the fastening method according to the embodiment, the tilted state of the fastening member 1 in the rotation axis direction with respect to the rotation axis direction can be calculated in more detail and more accurately. Even when the direction of the rotation axis of the member 3 is inclined with respect to the direction of the rotation axis of the member 3 to be fastened, it is possible to further suppress a decrease in the reliability of fastening the fastening member 1.

また、実施形態に係る締結システム100及び締結方法は、制御装置60が、被締結部材検出装置50に被締結部材3を検出させ、被締結部材検出装置50に検出させた被締結部材3の情報に基づいて、締結部材ランナ移動装置40により締結部材ランナ10を被締結部材3の回転軸方向から被締結部材3に接近移動させることができる。このため、実施形態に係る締結システム100及び締結方法は、締結部材1を被締結部材3に接近移動させた際の締結部材1の回転軸方向の被締結部材3の回転軸方向に対する傾斜を抑制することができるので、締結部材1の回転軸方向が被締結部材3の回転軸方向に対して傾斜して供給される場合でも、締結部材1の締結の信頼性の低下をさらに抑制することができる。 Further, in the fastening system 100 and the fastening method according to the embodiment, the control device 60 causes the fastened member detection device 50 to detect the fastened member 3, and the fastened member detection device 50 detects the fastened member 3. The fastening member runner moving device 40 can move the fastening member runner 10 closer to the fastened member 3 from the rotation axis direction of the fastened member 3 based on the above. Therefore, the fastening system 100 and the fastening method according to the embodiment suppress the inclination of the fastening member 1 in the rotation axis direction with respect to the rotation axis direction when the fastening member 1 is moved close to the fastened member 3. Therefore, even when the rotation axis direction of the fastening member 1 is inclined with respect to the rotation axis direction of the fastened member 3 to be supplied, it is possible to further suppress a decrease in the reliability of fastening the fastening member 1. it can.

1 締結部材
2 被締結部材ユニット
2−1 板部
3,3−1,3−2,3−3,3−4,3−5,3−6 被締結部材
4 板部材
4−1 貫通孔
10 締結部材ランナ
20 物理量検出装置
30 締結部材ランナ傾斜装置
40 締結部材ランナ移動装置
50 被締結部材検出装置
60 制御装置
61 処理部
62 記憶部
63 情報通信インターフェイス
64 保持動作制御部
65 逆回転動作制御部
66 押上情報検出部
67 傾斜算出部
68 傾斜状態解消部
69 締結動作制御部
70 入力装置
80 出力装置
100 締結システム
X´,FY´ 反力
l 位置変化
p ピッチ
θ 傾斜角
φ 傾斜方向
1 Fastening member 2 Fastened member unit 2-1 Plate part 3,3-1,3-2,3-3,3-4,3-5,3-6 Fastened member 4 Plate member 4-1 Through hole 10 Fastening member runner 20 Physical quantity detection device 30 Fastening member runner tilting device 40 Fastening member runner moving device 50 Fastened member detection device 60 Control device 61 Processing unit 62 Storage unit 63 Information and communication interface 64 Holding operation control unit 65 Reverse rotation operation control unit 66 Push-up information detection unit 67 Tilt calculation unit 68 Tilt state elimination unit 69 Fastening operation control unit 70 Input device 80 Output device 100 Fastening system FX' , FY'Reaction force l Position change p Pitch θ Tilt angle φ Tilt direction

Claims (4)

ナット及びボルトのうちいずれか一方を締結部材とし、前記ナット及び前記ボルトのうちいずれか他方を被締結部材として、前記締結部材を前記被締結部材に締結する締結システムであって、
前記締結部材を保持し、保持した前記締結部材を前記被締結部材に対して押圧しながら回転軸周りに回転させる締結部材ランナと、
前記締結部材ランナの位置変化及び前記締結部材ランナへの反力を検出する物理量検出装置と、
前記締結部材ランナの傾斜角を変更する締結部材ランナ傾斜装置と、
前記締結部材ランナ、前記物理量検出装置及び前記締結部材ランナ傾斜装置を制御する制御装置と、を備え、
前記制御装置は、
前記締結部材を前記被締結部材に対して押圧しながら弛緩方向に回転させる逆回転動作を前記締結部材ランナに実行させ、
前記逆回転動作の際に生じる前記締結部材の前記被締結部材に対する押上現象における押上情報を前記物理量検出装置に検出させ、
前記押上情報に基づいて、前記締結部材ランナの回転軸方向の前記被締結部材の回転軸方向に対する傾斜状態を算出し、
算出した前記傾斜状態に基づいて、前記締結部材ランナ傾斜装置に前記傾斜状態を解消させ、
前記傾斜状態を解消させた状態で、前記締結部材ランナにより前記締結部材を前記被締結部材に締結させる、
ことを特徴とする締結システム。
A fastening system in which one of a nut and a bolt is used as a fastening member, and one of the nut and the bolt is used as a fastening member, and the fastening member is fastened to the fastened member.
A fastening member runner that holds the fastening member and rotates the holding member around a rotation axis while pressing the fastening member against the member to be fastened.
A physical quantity detecting device that detects a change in the position of the fastening member runner and a reaction force on the fastening member runner, and
A fastening member runner tilting device that changes the tilt angle of the fastening member runner,
The fastening member runner, the physical quantity detecting device, and a control device for controlling the fastening member runner tilting device are provided.
The control device is
The fastening member runner is made to perform a reverse rotation operation of rotating the fastening member in the relaxation direction while pressing the fastening member against the member to be fastened.
The physical quantity detection device is made to detect the push-up information in the push-up phenomenon of the fastening member with respect to the fastened member that occurs during the reverse rotation operation.
Based on the push-up information, the tilted state of the fastening member runner in the rotation axis direction with respect to the rotation axis direction of the fastened member is calculated.
Based on the calculated tilted state, the fastening member runner tilting device eliminates the tilted state.
In a state where the inclined state is eliminated, the fastening member is fastened to the fastened member by the fastening member runner.
A fastening system characterized by that.
前記制御装置は、
前記逆回転動作の際の前記押上情報の1つのパラメータである前記締結部材ランナの前記位置変化に基づいて、前記傾斜状態の1つのパラメータである前記締結部材ランナの回転軸方向の前記被締結部材の回転軸方向に対する傾斜角を算出し、
前記逆回転動作の際の前記押上情報のもう1つのパラメータである前記締結部材ランナへの反力に基づいて、前記傾斜状態のもう1つのパラメータである前記締結部材ランナの回転軸方向の前記被締結部材の回転軸方向に対する傾斜方向を算出し、
前記傾斜方向において、前記傾斜角を解消する方向に、前記締結部材ランナ傾斜装置に前記締結部材ランナの傾斜角を変更させる、
ことを特徴とする請求項1に記載の締結システム。
The control device is
Based on the position change of the fastening member runner, which is one parameter of the push-up information during the reverse rotation operation, the fastening member in the rotation axis direction of the fastening member runner, which is one parameter of the tilted state. Calculate the tilt angle with respect to the rotation axis direction of
Based on the reaction force on the fastening member runner, which is another parameter of the push-up information during the reverse rotation operation, the covering in the rotation axis direction of the fastening member runner, which is another parameter of the tilted state. Calculate the inclination direction of the fastening member with respect to the rotation axis direction,
In the tilting direction, the fastening member runner tilting device is made to change the tilting angle of the fastening member runner in a direction for eliminating the tilt angle.
The fastening system according to claim 1, wherein the fastening system is characterized in that.
前記締結部材ランナを移動させる締結部材ランナ移動装置と、
前記締結部材を締結する前記被締結部材を検出する被締結部材検出装置と、をさらに備え、
前記制御装置は、
前記締結部材ランナ移動装置及び前記被締結部材検出装置を更に制御し、
前記被締結部材検出装置に前記被締結部材を検出させ、
前記被締結部材検出装置に検出させた前記被締結部材の情報に基づいて、前記締結部材ランナ移動装置により前記締結部材ランナを前記被締結部材の回転軸方向から前記被締結部材に接近移動させる、
ことを特徴とする請求項1または請求項2に記載の締結システム。
A fastening member runner moving device for moving the fastening member runner,
A device for detecting a member to be fastened, which detects the member to be fastened, is further provided.
The control device is
Further controlling the fastening member runner moving device and the fastening member detecting device,
Let the fastened member detection device detect the fastened member,
Based on the information of the fastened member detected by the fastened member detecting device, the fastening member runner moving device moves the fastening member runner closer to the fastened member from the rotation axis direction of the fastened member.
The fastening system according to claim 1 or 2, wherein the fastening system is characterized in that.
ナット及びボルトのうちいずれか一方を締結部材とし、前記ナット及び前記ボルトのうちいずれか他方を被締結部材として、前記締結部材を前記被締結部材に締結する締結方法であって、
前記締結部材を前記被締結部材に対して押圧しながら弛緩方向に回転させる逆回転動作を実行する逆回転動作ステップと、
前記逆回転動作の際に生じる前記締結部材の前記被締結部材に対する押上現象における押上情報を検出する押上情報検出ステップと、
前記押上情報に基づいて、前記締結部材の回転軸方向の前記被締結部材の回転軸方向に対する傾斜状態を算出する傾斜算出ステップと、
算出した前記傾斜状態に基づいて、前記傾斜状態を解消する傾斜状態解消ステップと、
前記傾斜状態を解消させた状態で、前記締結部材を前記被締結部材に締結する締結ステップと、
を有することを特徴とする締結方法。
A fastening method in which one of a nut and a bolt is used as a fastening member, and one of the nut and the bolt is used as a fastening member, and the fastening member is fastened to the fastened member.
A reverse rotation operation step of executing a reverse rotation operation of rotating the fastening member in the relaxation direction while pressing the fastening member against the member to be fastened, and a reverse rotation operation step.
A push-up information detection step for detecting push-up information in a push-up phenomenon of the fastening member with respect to the fastened member that occurs during the reverse rotation operation, and
Based on the push-up information, an inclination calculation step of calculating the inclination state of the fastening member in the rotation axis direction with respect to the rotation axis direction of the fastened member, and
Based on the calculated tilted state, the tilted state eliminating step for eliminating the tilted state and
A fastening step of fastening the fastening member to the fastened member in a state where the inclined state is eliminated.
A fastening method characterized by having.
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