JP3126371U - Ball fall prevention device - Google Patents

Ball fall prevention device Download PDF

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JP3126371U
JP3126371U JP2006005441U JP2006005441U JP3126371U JP 3126371 U JP3126371 U JP 3126371U JP 2006005441 U JP2006005441 U JP 2006005441U JP 2006005441 U JP2006005441 U JP 2006005441U JP 3126371 U JP3126371 U JP 3126371U
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ball
stopper
rotating body
prevention device
balls
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義雄 岩瀬
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Meko Seiki Inc
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Meko Seiki Inc
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Abstract

【課題】ボ−ル落下防止装置に関し、特に、工具交換装置や減速機の動力伝達部に使用される多数のボ−ルを周囲に配した回転体のボ−ルの離脱を防止するボ−ル落下防止装置に関する。
【解決手段】カム溝６に案内される多数のボ−ル１を周囲に配した回転体９において、基部２の凹入部分５に収容したボ−ル１の離脱を防ぐための止め金具３で構成し、前記止め金具３は、回転体９の面に対して直角方向に、ボ−ル１を介して互いに真向かいに対向して配置され、止め金具３の後部は基部２に嵌め込み固定し、楔形先端部はボ−ル１の回転を可能にした状態でボ−ルの表面に接触してボ−ルを支持することによりボ−ルの離脱を防ぐボ−ル落下防止装置である。
【選択図】図１The present invention relates to a ball drop prevention device, and more particularly, a ball for preventing a ball of a rotating body, which is provided with a large number of balls around a tool changer and a power transmission unit of a speed reducer, from being detached. The present invention relates to a drop prevention device.
In a rotating body 9 around which a large number of balls 1 guided by cam grooves 6 are arranged, a stopper 3 for preventing the balls 1 accommodated in the recessed portions 5 of the base 2 from being detached. The fasteners 3 are arranged in a direction perpendicular to the surface of the rotating body 9 so as to face each other via the ball 1, and the rear part of the fasteners 3 is fitted and fixed to the base 2. The wedge-shaped tip is a ball drop prevention device that prevents the ball from coming off by contacting the surface of the ball and supporting the ball in a state in which the ball 1 is allowed to rotate.
[Selection] Figure 1

Description

本考案はボ−ル落下防止装置に関し、特に、工具交換装置や減速機の動力伝達部に使用される多数のボ−ルを周囲に配した回転体のボ−ルの離脱を防止するボ−ル落下防止装置に関する。  The present invention relates to a ball drop prevention device, and more particularly, a ball for preventing a ball of a rotating body having a plurality of balls used in a power transmission part of a tool changer or a speed reducer around. The present invention relates to a drop prevention device.

工具交換装置や減速機の動力伝達部には、歯車の代わりに多数のボ−ルを周囲に配した回転体が使用されるものがある。この場合、ボ−ルが抜け落ち易いことが大きな課題であり、従来からそのようなボ−ルの離脱を防ぐための工夫がなされてきた。  Some power transmission units of tool changers and reduction gears use a rotating body in which a large number of balls are arranged instead of gears. In this case, it is a big problem that the ball easily falls out, and conventionally, a device for preventing such a ball from being detached has been made.

従来、工具交換装置においてボ−ルの落下を防止する手段として、図４に点線で示すようなボ−ルの外周のボ−ル落下防止部にボ−ル落下防止用の壁１０を設けている。しかしこの方法では、ボ−ルの外周に壁をめぐらすことになり、その周囲の設計の自由度が制限され且つコンパクトにならない。さらにボ−ルの外周にボ−ル落下防止用の壁を設ける場合、カム溝とかみ合う部分には壁を設けることができないので回転体の全周にわたってボ−ルを保持できないなどの不都合が生じている。
特開平１１−９９４２８ なし Conventionally, as a means for preventing the ball from dropping in the tool changer, a ball fall prevention wall 10 is provided at the ball fall prevention portion on the outer periphery of the ball as shown by a dotted line in FIG. Yes. However, in this method, a wall is passed around the outer periphery of the ball, and the degree of freedom in designing the surroundings is limited, and it is not compact. In addition, when a ball fall prevention wall is provided on the outer periphery of the ball, the wall cannot be provided at the portion engaging with the cam groove, so that there is a disadvantage that the ball cannot be held over the entire circumference of the rotating body. ing.
JP-A-11-99428 None

従来のようにボ−ル落下防止用の壁を設けた場合、上述のようにボ−ルがカム溝とかみ合う部分には壁を設けることができないので、回転体の全周、即ちボ−ルの外周で３６０度にわたってボ−ルを保持することができない。
さらに、このボ−ル落下防止用の壁を設けると、ボ−ルの外周に壁をめぐらすことになり、その周りの設計の自由度が制限され且コンパクトにならない。
そのような問題を解決しようとするのが本考案の課題である。
本考案のボ−ル落下防止装置は止め金具で構成し、従来のボ−ル落下防止用の壁は設けない。この止め金具の後部は基部に嵌め込み固定し、楔形先端部はボ−ルの回転を可能にした状態でボ−ルの表面に接触してボ−ルを支持することによりボ−ルの離脱を防ぐものである。When a ball drop prevention wall is provided as in the prior art, no wall can be provided at the portion where the ball engages with the cam groove as described above. It is not possible to hold the ball over 360 degrees on the outer circumference.
Further, if the wall for preventing the ball from falling is provided, the wall is wound around the outer periphery of the ball, the degree of freedom in designing the surroundings is limited, and the wall is not compact.
The task of the present invention is to solve such a problem.
The ball drop prevention device of the present invention is constituted by a stopper and does not have a conventional ball drop prevention wall. The rear part of the fastener is fitted and fixed to the base part, and the wedge-shaped tip part is brought into contact with the surface of the ball in a state in which the ball can be rotated to support the ball, thereby removing the ball. It is something to prevent.

本考案は、カム溝６に案内される多数のボ−ル１を周囲に配した回転体９において、基部２の凹入部分５に収容したボ−ル１の離脱を防ぐための止め金具３で構成し、前記止め金具３は、回転体９の面に対して直角方向に、ボ−ル１を介して互いに真向かいに対向して配置され、止め金具３の後部は基部２に嵌め込み固定し、楔形先端部はボ−ル１の回転を可能にした状態でボ−ルの表面に接触してボ−ルを支持することによりボ−ルの離脱を防ぐボ−ル落下防止装置である。  In the present invention, in a rotating body 9 around which a large number of balls 1 guided by cam grooves 6 are arranged, a stopper 3 for preventing the balls 1 housed in the recessed portions 5 of the base 2 from being detached. The fasteners 3 are arranged in a direction perpendicular to the surface of the rotating body 9 so as to face each other via the ball 1, and the rear part of the fasteners 3 is fitted and fixed to the base 2. The wedge-shaped tip is a ball drop prevention device that prevents the ball from coming off by contacting the surface of the ball and supporting the ball in a state in which the ball 1 is allowed to rotate.

本考案のボ−ル落下防止装置は止め金具で構成し、この止め金具の後部は基部に嵌め込み固定し、楔形先端部はボ−ルの回転を可能にした状態でボ−ルの表面に接触してボ−ルを支持することによりボ−ルの離脱を防ぐものである。
従って本考案のボ−ル落下防止装置では、従来のボ−ル落下防止用の壁は設けないので回転体の全周、即ちボ−ルの外周で３６０度にわたってボ−ルを保持することができる。しかも本考案の止め金具は後部を基部に嵌め込み固定し、楔形先端部はボ−ルの表面に接触してボ−ルを支持するので基部とボ−ルを常時安定して保持できる効果がある。
さらに、このボ−ル落下防止用の壁を設けないので、ボ−ルの外周に壁をめぐらすこともなくなり、その周りの設計の自由度が制限されることがなく且コンパクトにすることができる効果がある。
ボ−ルをその中心線よりやや深く基部の凹入部分に収容し、止め金具の楔形先端部でボ−ルの表面に接触してボ−ルを支持するのでボ−ルを確実に保持できる効果がある。The ball drop prevention device of the present invention is constituted by a stopper, and the rear part of the stopper is fitted and fixed to the base, and the wedge-shaped tip is in contact with the surface of the ball while allowing the ball to rotate. Thus, the ball is prevented from being detached by supporting the ball.
Therefore, in the ball fall prevention device of the present invention, since the conventional ball fall prevention wall is not provided, the ball can be held over 360 degrees on the entire circumference of the rotating body, that is, on the outer circumference of the ball. it can. In addition, the fastener of the present invention has the effect of being able to hold the base and the ball stably at all times since the rear end is fitted and fixed to the base and the wedge-shaped tip contacts the surface of the ball and supports the ball. .
Further, since the wall for preventing the ball from falling is not provided, the wall does not go around the outer periphery of the ball, and the degree of freedom in designing the surrounding area is not limited and can be made compact. effective.
The ball is accommodated in the recessed portion of the base part slightly deeper than the center line, and the ball is supported by the wedge-shaped tip of the stopper to contact the surface of the ball so that the ball can be held securely. effective.

本考案はボ−ル落下防止装置を構成する止め金具であって、ボ−ルの落下を防止するために、止め金具の先端を楔形に鋭く形成し、その楔形の先端部でボ−ルの表面を保持するものである。
止め金具３は、回転体９の面に対して直角方向に、ボ−ル１を介して互いに真向かいに対向して２個配置される。止め金具３の後方部は基部２に嵌め込み、しっかりと固定され、楔形の先端部はボ−ル１の回転を可能にした状態でボ−ルの表面に接触してボ−ルを支持することによりボ−ルの離脱を防ぐ。
また、ボ−ル１’の中心とカム４’の中心とがずれている場合もあり、その場合の止め金具３’は、回転体９’の面に対して直角方向に、ボ−ル１’の片側に１個配置される。The present invention is a stopper that constitutes a ball drop prevention device, and in order to prevent the ball from falling, the tip of the stopper is sharply formed in a wedge shape, and the wedge-shaped tip portion of the ball Holds the surface.
Two fasteners 3 are arranged in a direction perpendicular to the surface of the rotating body 9 so as to face each other directly across the ball 1. The rear part of the stopper 3 is fitted into the base part 2 and is firmly fixed, and the wedge-shaped tip part is in contact with the surface of the ball in a state in which the ball 1 can be rotated to support the ball. Prevents ball withdrawal.
In some cases, the center of the ball 1 ′ and the center of the cam 4 ′ are shifted from each other. In this case, the stopper 3 ′ is positioned in a direction perpendicular to the surface of the rotating body 9 ′. One is placed on one side of '.

図１は、図４の矢印８で示す部分の拡大図であって、工具交換装置の減速部に本考案の止め金具３を使用した例である。
本考案のボ−ル落下防止装置は止め金具３で構成する。その止め金具３は、多数のボ−ル１を周囲に配した回転体９において、基部２の凹入部分５に収容したボ−ル１の離脱を防ぐためのものである。
止め金具３は、回転体９の面に対して直角方向に、ボ−ル１を介して互いに真向かいに対向して２個配置される。止め金具３の後方部は基部２に嵌め込み、しっかりと固定され、楔形の先端部はボ−ル１の回転を可能にした状態でボ−ルの表面に接触してボ−ルを支持することによりボ−ルの離脱を防ぐ。
ボ−ル１をその中心線よりやや深く基部２の凹入部分５に収容し、止め金具の楔形の先端部でボ−ルの表面に接触してボ−ルを支持する。
凹入部分５の周縁部７は面取り状に形成され、ボ−ルの挿入を容易にしている。FIG. 1 is an enlarged view of a portion indicated by an arrow 8 in FIG. 4, and is an example in which the fastener 3 of the present invention is used for the speed reduction portion of the tool changer.
The ball drop prevention device of the present invention is constituted by a stopper 3. The stopper 3 is for preventing the ball 1 accommodated in the recessed portion 5 of the base 2 from being detached in the rotating body 9 having a large number of balls 1 disposed around it.
Two fasteners 3 are arranged in a direction perpendicular to the surface of the rotating body 9 so as to face each other directly across the ball 1. The rear part of the stopper 3 is fitted into the base part 2 and is firmly fixed, and the wedge-shaped tip part is in contact with the surface of the ball in a state in which the ball 1 can be rotated to support the ball. Prevents ball withdrawal.
The ball 1 is accommodated in the recessed portion 5 of the base 2 slightly deeper than the center line, and the ball is supported by contacting the surface of the ball with the wedge-shaped tip of the stopper.
The peripheral edge 7 of the recessed portion 5 is formed in a chamfered shape to facilitate the insertion of the ball.

図２は、図３の矢印８’で示す部分の拡大図であって、工具交換装置のタレット部に本考案の止め金具３’を使用した例である。
本考案のボ−ル落下防止装置は止め金具３’で構成する。その止め金具３’は、多数のボ−ル１’を周囲に配した回転体９’において、基部２’の凹入部分５’に収容したボ−ル１’の離脱を防ぐためのものである。
この例はボ−ル１’の中心とカム４’の中心とがずれている場合である。
止め金具３’は、回転体９’の面に対して直角方向に、ボ−ル１’の片側に１個配置される。止め金具３’の後方部は基部２’に嵌め込み、しっかりと固定され、楔形の先端部はボ−ル１’の回転を可能にした状態でボ−ルの表面に接触してボ−ル１’を支持することによりボ−ルの離脱を防ぐ。
ボ−ル１’をその中心線よりやや深く基部２’の凹入部分５’に収容し、止め金具３’の楔形の先端部でボ−ルの表面に接触してボ−ル１’を支持する。
凹入部分５’の周縁部７’は面取り状に形成され、ボ−ル１’の挿入を容易にする。FIG. 2 is an enlarged view of a portion indicated by an arrow 8 ′ in FIG. 3, and is an example in which the stopper 3 ′ of the present invention is used in the turret portion of the tool changer.
The ball fall prevention device of the present invention is constituted by a stopper 3 '. The stopper 3 'is for preventing separation of the ball 1' accommodated in the recessed portion 5 'of the base 2' in the rotating body 9 'around which a large number of balls 1' are arranged. is there.
In this example, the center of the ball 1 ′ and the center of the cam 4 ′ are shifted.
One stopper 3 ′ is arranged on one side of the ball 1 ′ in a direction perpendicular to the surface of the rotating body 9 ′. The rear part of the stopper 3 'is fitted into the base part 2' and is firmly fixed, and the wedge-shaped tip part is brought into contact with the surface of the ball in a state in which the ball 1 'can be rotated and the ball 1 Preventing the ball from leaving by supporting '.
The ball 1 'is accommodated in the recessed portion 5' of the base 2 'slightly deeper than the center line, and the ball 1' is brought into contact with the surface of the ball at the wedge-shaped tip of the stopper 3 '. To support.
The peripheral portion 7 'of the recessed portion 5' is formed in a chamfered shape to facilitate the insertion of the ball 1 '.

矢印８の部分の拡大図であって、減速部において本考案の止め金具でボ−ルを支えた状態を示す。It is an enlarged view of the part of the arrow 8, Comprising: The state which supported the ball | bowl with the fastener of this invention in the deceleration part is shown. 矢印８’の部分の拡大図であって、タレット部において本考案の止め金具でボ−ルを支えた状態を示す。It is an enlarged view of the part of arrow 8 ', Comprising: The state which supported the ball | bowl with the fastener of this invention in the turret part is shown. 本考案の止め金具を使用した工具交換装置の正面図であって、内部を示すために一部破断して概略図で示したものである。It is a front view of the tool changer using the metal fitting of the present invention, and is a partly broken and schematic view to show the inside. 図３のタレット部のボ−ルの面でとった概略縦断面図であって、説明の都合上、従来のボ−ル落下防止壁１０を点線で示した。FIG. 4 is a schematic longitudinal sectional view taken on the ball surface of the turret portion of FIG. 3, and the conventional ball drop preventing wall 10 is indicated by a dotted line for convenience of explanation.

符号の説明Explanation of symbols

１、１’ ボ−ル
２、２’ 基部
３、３’ 止め金具
４、４’ カム
５、５’ 凹入部分
６、６’ カム溝
７、７’ 凹入部分の面取り縁部
８、８’ 矢印
９、９’ 回転体
１０ 従来のボ−ル落下防止壁1, 1 'ball 2, 2' base 3, 3 'stopper 4, 4' cam 5, 5 'recessed portion 6, 6' cam groove 7, 7 'chamfered edge 8, 8 of recessed portion 'Arrows 9, 9' Rotating body 10 Conventional ball fall prevention wall

Claims (2)

カム溝（６）に案内される多数のボ−ル（１）を周囲に配した回転体（９）において、基部（２）の凹入部分（５）に収容したボ−ル（１）の離脱を防ぐための止め金具（３）で構成し、前記止め金具（３）は、回転体（９）の面に対して直角方向に、ボ−ル（１）を介して互いに真向かいに対向して配置され、止め金具（３）の後部は基部（２）に嵌め込み固定し、楔形先端部はボ−ル（１）の回転を可能にした状態でボ−ルの表面に接触してボ−ルを支持することによりボ−ルの離脱を防ぐボ−ル落下防止装置。  In the rotating body (9) in which a large number of balls (1) guided by the cam groove (6) are arranged in the periphery, the balls (1) accommodated in the recessed portions (5) of the base (2) The stopper (3) is configured to prevent detachment, and the stopper (3) is opposed to each other through the ball (1) in a direction perpendicular to the surface of the rotating body (9). The rear end of the stopper (3) is fitted and fixed to the base (2), and the wedge-shaped tip is brought into contact with the surface of the ball while allowing the ball (1) to rotate. A ball fall prevention device that prevents the ball from detaching by supporting the ball. カム溝（６’）に案内される多数のボ−ル（１’）を周囲に配した回転体（９’）において、基部（２’）の凹入部分（５’）に収容したボ−ル（１’）の離脱を防ぐための止め金具（３’）で構成し、前記止め金具（３’）は、回転体（９’）の面に対して直角方向に、ボ−ル（１’）の片側に配置され、止め金具（３’）の後部は基部（２’）に嵌め込み固定し、楔形先端部はボ−ル（１’）の回転を可能にした状態でボ−ルの表面に接触してボ−ルを支持することによりボ−ルの離脱を防ぐボ−ル落下防止装置。  In the rotating body (9 ′) around which a large number of balls (1 ′) guided by the cam grooves (6 ′) are arranged, the balls accommodated in the recessed portions (5 ′) of the base (2 ′). The stopper (3 ′) is configured to prevent the detachment of the ball (1 ′). The stopper (3 ′) is formed in a direction perpendicular to the surface of the rotating body (9 ′). ') Is arranged on one side, the rear part of the clamp (3') is fitted and fixed to the base part (2 '), and the wedge-shaped tip part allows rotation of the ball (1'). A ball drop prevention device that prevents the ball from coming off by contacting the surface and supporting the ball.
JP2006005441U 2006-06-12 2006-06-12 Ball fall prevention device Expired - Fee Related JP3126371U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014054698A (en) * 2012-09-13 2014-03-27 Okubo Gear Co Ltd Automatic tool replacement apparatus and middle shaft ball holder therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014054698A (en) * 2012-09-13 2014-03-27 Okubo Gear Co Ltd Automatic tool replacement apparatus and middle shaft ball holder therefor

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