JPH11156648A - Automatic screw fastener - Google Patents
Automatic screw fastenerInfo
- Publication number
- JPH11156648A JPH11156648A JP34419197A JP34419197A JPH11156648A JP H11156648 A JPH11156648 A JP H11156648A JP 34419197 A JP34419197 A JP 34419197A JP 34419197 A JP34419197 A JP 34419197A JP H11156648 A JPH11156648 A JP H11156648A
- Authority
- JP
- Japan
- Prior art keywords
- holding
- screw
- driver bit
- holding claws
- closing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ワークにねじを締
結する自動ねじ締め機に関し、詳しくはねじを保持する
保持爪の開閉を自在成す自動ねじ締め機に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic screwdriver for fastening a screw to a work, and more particularly to an automatic screwdriver for freely opening and closing a holding claw for holding a screw.
【０００２】[0002]
【従来の技術】従来、ワークにねじを締結するにあたっ
ては各種の自動ねじ締め機が使用されている。この種の
自動ねじ締め機は、一般に回転駆動源の駆動を受けて回
転可能な磁化されたドライバビットと、このドライバビ
ットの移動路上にねじを保持可能な保持手段とを備えて
構成されている。前記保持手段は、回動可能な一対の保
持爪を備えており、この保持爪は、常時は閉止するよう
ばねなどで付勢されている。また、この保持爪の対向面
には保持穴が分割形成されており、フィーダなどのねじ
供給装置から送られたねじが嵌合するように構成されて
いる。2. Description of the Related Art Conventionally, various types of automatic screw tighteners have been used for fastening screws to a work. This type of automatic screw tightening machine is generally provided with a magnetized driver bit that can be rotated by being driven by a rotary drive source, and holding means that can hold a screw on a moving path of the driver bit. . The holding means includes a pair of rotatable holding claws, and the holding claws are urged by a spring or the like to be normally closed. Further, a holding hole is formed separately on the opposing surface of the holding claw, so that a screw sent from a screw supply device such as a feeder is fitted.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の自動ねじ締
め機では、保持爪の保持穴に嵌合保持されたねじは、ド
ライバビットの移動にともなって吸着保持され、保持爪
から押し出されるのであるが、その際、ねじが完全に保
持爪前方に押し出されるまでに保持爪がばねの付勢によ
り閉じようとするため、その力でねじが弾き飛ばされ、
ドライバビットからねじが脱落してしまう等の問題が発
生している。In the above-mentioned conventional automatic screw tightening machine, the screw fitted and held in the holding hole of the holding claw is sucked and held with the movement of the driver bit, and is pushed out from the holding claw. However, at this time, the holding claw attempts to close by the bias of the spring before the screw is completely pushed out to the front of the holding claw, so the screw is flipped off by that force,
Problems such as screws dropping out of the driver bit have occurred.
【０００４】[0004]
【課題を解決するための手段】本発明は上記課題に鑑み
て創成されたものであり、保持爪の開閉を自在成して良
好にねじ締めを行うことのできる自動ねじ締め機の提供
を目的とする。この目的を達成するため、本発明は、回
転駆動源の駆動を受けて回転可能かつ往復駆動源の駆動
を受けて軸線方向へ往復移動可能に構成されたドライバ
ビットを有し、このドライバビットの移動路上にねじを
保持可能に構成した保持手段を配置して構成されてい
る。前記保持手段は、本体部に回動可能に連結した一対
の保持爪と、この保持爪を回動させる開閉手段とを備え
て構成されている。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide an automatic screw tightening machine which can freely open and close a holding claw and can perform a good screw tightening. And In order to achieve this object, the present invention has a driver bit configured to be rotatable under the drive of a rotary drive source and reciprocally movable in the axial direction under the drive of a reciprocal drive source. A holding means configured to be able to hold the screw is arranged on the moving path. The holding means includes a pair of holding claws rotatably connected to the main body, and opening and closing means for rotating the holding claws.
【０００５】前記開閉手段は、保持爪にそれぞれ突設し
た係合部材と、一端に前記係合部材に係合して保持爪を
閉止可能な閉止用操作片を有し、かつ他端には前記係合
部材の間に割り込んで前記保持爪を拡開可能な拡開用操
作片を有する操作部材と、この操作部材を各操作片が係
合部材に交互に係合するよう移動させる往復駆動源とか
ら構成することが望ましい。The opening / closing means has an engaging member projecting from the holding claw, and a closing operation piece at one end capable of engaging with the engaging member to close the holding claw, and at the other end. An operating member having an operating member for expanding which can open the holding claw by being inserted between the engaging members, and a reciprocating drive for moving the operating member so that each operating member is alternately engaged with the engaging member. And a source.
【０００６】[0006]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図１ないし図５において、１は自
動ねじ締め機であり、ベース２に取り付けたガイド３に
沿って移動可能なドライバ台４を有している。このドラ
イバ台４は、前記ベース２上部に配した往復駆動源の一
例であるシリンダ５のロッド５ａに連結されており、そ
の上面には回転駆動源の一例であるモータ６が取り付け
られている。このモータ６の出力軸６ａには、連結軸７
を介してドライバビット８が連結されており、モータ６
が駆動するのを受けてドライバビット８が回転するよう
に構成されている。なお、このドライバビット８はあら
かじめ磁界に晒されて磁化されたものであり、その先端
部分は、横断面六角形状を成し、主に六角穴付きねじの
締結を行えるように構成されている。Embodiments of the present invention will be described below with reference to the drawings. 1 to 5, reference numeral 1 denotes an automatic screwing machine having a driver table 4 movable along a guide 3 attached to a base 2. The driver base 4 is connected to a rod 5a of a cylinder 5 which is an example of a reciprocating drive source disposed on the base 2, and a motor 6 which is an example of a rotary drive source is mounted on an upper surface thereof. An output shaft 6a of the motor 6 has a connecting shaft 7
The driver bit 8 is connected via the
Is driven so that the driver bit 8 rotates. The driver bit 8 has been magnetized by being exposed to a magnetic field in advance, and has a hexagonal cross section at its tip end so that a screw with a hexagonal hole can be mainly fastened.
【０００７】また、前記ガイド３下部には、前記ドライ
バ台４の下方に位置してチャック台９が配置されてお
り、このチャック台９には、前記ドライバビット８の移
動路上にねじを保持可能な保持手段１０が配置されてい
る。この保持手段１０は、チャック台９に取り付けた中
空のガイドスリーブ１１と、このガイドスリーブ１１先
端に設けた本体部１２と、この本体部１２に回動可能に
取り付けた一対の保持爪１３，１３と、この保持爪１
３，１３を開閉させる開閉手段１４と、前記本体部１２
に斜めに取り付けたホース接続具１５とから構成されて
いる。A chuck base 9 is disposed below the guide 3 under the driver base 4, and the chuck base 9 can hold a screw on a moving path of the driver bit 8. Holding means 10 are arranged. The holding means 10 includes a hollow guide sleeve 11 attached to the chuck base 9, a main body 12 provided at the tip of the guide sleeve 11, and a pair of holding claws 13, 13 rotatably attached to the main body 12. And this holding claw 1
Opening / closing means 14 for opening / closing 3, 3;
And a hose connector 15 attached diagonally to the hose.
【０００８】前記ガイドスリーブ１１は、前記ドライバ
ビット８を内包するもので、これに連通して前記本体部
１２には案内路１２ａが形成されている。また、前記ホ
ース接続具１５は、内部中空になっており、一端にフィ
ーダなどのねじ供給手段（図示せず）から延びるホース
（図示せず）が連結され、このホースを送られるねじを
本体部１２の案内路１２ａに導くように構成されてい
る。The guide sleeve 11 encloses the driver bit 8, and a guide path 12a is formed in the main body 12 in communication therewith. The hose connector 15 is hollow inside. A hose (not shown) extending from a screw supply unit (not shown) such as a feeder is connected to one end of the hose connector 15. It is configured to guide to 12 guide paths 12a.
【０００９】また、前記保持爪１３，１３はばねなどに
より常時閉じるように付勢されており、その対向面に
は、前記案内路１２ａに連通する保持穴１３ａが分割形
成されている。この保持穴１３ａは、前記ドライバビッ
ト８の移動路上に形成されるもので、その先端付近は、
ねじのねじ部が通過可能で頭部が通過不可能な径に絞ら
れ、供給されたねじの頭部を係止して嵌合保持できるよ
うに構成されている。The holding claws 13, 13 are urged by a spring or the like so as to be always closed, and a holding hole 13a communicating with the guide path 12a is formed on the opposing surface thereof. The holding hole 13a is formed on the moving path of the driver bit 8, and the vicinity of the tip is
The diameter of the screw is reduced to a diameter that allows the threaded portion of the screw to pass and the head to be impermeable, so that the head of the supplied screw can be locked and fitted and held.
【００１０】前記開閉手段１４は、保持爪１３，１３に
分割形成した逆Ｖ字様を成す係合部材１６と、この係合
部材１６に係合可能な操作部材１７と、この操作部材１
７にロッド１８ａが連結されるシリンダ１８とから構成
されている。前記操作部材１７は、前記係合部材１６を
挟んで閉止用操作片１７ａと拡開用操作片１７ｂを有し
ており、閉止用操作片１７ａは係合部材１６の外周傾斜
面に係合可能な形状を成し、一方で拡開用操作片１７ｂ
は係合部材１６の開口側に割り込み可能な形状を成して
いる。The opening / closing means 14 includes an engaging member 16 having an inverted V-shape formed by dividing the holding claws 13, 13, an operating member 17 engageable with the engaging member 16, and the operating member 1.
7 and a cylinder 18 to which a rod 18a is connected. The operating member 17 has a closing operation piece 17a and an expanding operation piece 17b with the engaging member 16 interposed therebetween, and the closing operation piece 17a can be engaged with the outer peripheral inclined surface of the engaging member 16. Operating piece 17b
Has a shape that can be inserted into the opening side of the engaging member 16.
【００１１】上記自動ねじ締め機１では、ねじ供給手段
からエアによって圧送されるねじは、ホース接続具１５
および案内路１２ａを通じて保持爪１３，１３の保持穴
１３ａに到達し保持される。この時、シリンダ１８のロ
ッド１８ａが伸長して保持爪１３，１３の係合部材１６
には操作部材１７の閉止用操作片１７ａが合致してお
り、これによって保持爪１３，１３は回動不可能に閉止
される。したがって、エア圧送により送られたねじの衝
突によっても保持爪１３，１３が押し開かれてしまうよ
うなことがない。In the automatic screw tightening machine 1 described above, the screw supplied by air from the screw supply means is connected to the hose connector 15.
And the guide holes 12a reach the holding holes 13a of the holding claws 13 and are held there. At this time, the rod 18a of the cylinder 18 extends and the engaging member 16 of the holding claws 13, 13 is extended.
, The closing operation piece 17a of the operation member 17 is matched, whereby the holding claws 13, 13 are closed non-rotatably. Therefore, the holding claws 13, 13 are not pushed and opened even by the collision of the screw sent by the air pressure feeding.
【００１２】保持爪１３，１３にねじを保持し、続いて
シリンダ５が作動してドライバ台４を前進させると、こ
のことによってドライバビット８は本体部１２内を進
み、保持爪１３，１３に保持されたねじに押接される。
この時も、係合部材１６には閉止用操作片１７ａが合致
したままなので、保持爪１３，１３は回動せず、したが
って、この状態で所定時間モータ６を駆動してドライバ
ビット８を回転させると、その先端部をねじの六角穴に
合致させ、ねじを正しい姿勢で吸着することができる。When the screw is held on the holding claws 13, 13, and then the cylinder 5 is operated to advance the driver table 4, the driver bit 8 advances inside the main body 12, and It is pressed against the held screw.
Also at this time, since the closing operation piece 17a still matches the engagement member 16, the holding claws 13 and 13 do not rotate. Therefore, in this state, the motor 6 is driven for a predetermined time to rotate the driver bit 8. Then, the tip can be aligned with the hexagonal hole of the screw, and the screw can be sucked in the correct posture.
【００１３】その後、シリンダ１８がロッド１８ａを収
縮させるよう作動して操作部材１７を上方に移動させる
と、これによって閉止用操作片１７ａは係合部材１６か
ら離脱し、代わって拡開用操作片１７ｂが係合部材１６
に割り込んで、これを押し退けるよう移動する。これに
より係合部材１６と一体に保持爪１３，１３が開くよう
回動するため、保持されていたねじはドライバビット８
に吸着された状態で解放される。このように解放された
ねじは、ドライバ台４のさらなる前進によりワークまで
押し出され、ドライバビット８が回転するのを受けて締
結されるが、保持爪１３，１３は、既に開いているた
め、保持爪１３，１３がドライバビット８に吸着してい
るねじに干渉して、これを弾いてしまうような不具合が
生じない。Thereafter, when the cylinder 18 operates to contract the rod 18a to move the operating member 17 upward, the closing operating piece 17a is disengaged from the engaging member 16, and instead the expanding operating piece 17a is moved. 17b is the engaging member 16
And move to push it away. As a result, since the holding claws 13 and 13 are rotated so as to be opened integrally with the engaging member 16, the held screw is used as the driver bit 8.
It is released while being adsorbed on the. The screw released in this manner is pushed out to the work by further advancement of the driver base 4, and is fastened when the driver bit 8 is rotated. However, since the holding claws 13, 13 are already open, the holding claw 13 is held. The problem that the claws 13 and 13 interfere with the screw attracted to the driver bit 8 and repel the screw does not occur.
【００１４】本発明の実施の形態については、同様の効
果を得るものとして上記した以外に次のような例も考え
られる。まず、第２の実施の形態は、図６に示すよう
に、保持爪２３，２３をばね２４，２４により常時閉じ
るように付勢したものであり、この保持爪２３，２３を
挟むようカム部材２５を配し、これを往復移動させるこ
とにより保持爪が開閉するように構成されている。As for the embodiment of the present invention, the following example can be considered in addition to the above-mentioned example to obtain the same effect. First, in the second embodiment, as shown in FIG. 6, the holding claws 23, 23 are urged to be always closed by the springs 24, 24, and the cam members are sandwiched between the holding claws 23, 23. The holding claw is opened and closed by reciprocating the holding claw.
【００１５】なお、本発明の実施の形態では、先端部分
が横断面六角形状に形成されるドライバビットを例に挙
げて説明を行ったが、このドライバビットは、締め付け
られるねじに合わせて任意に選択できるものであって、
何れを選択しようとも得られる効果は同じである。In the embodiment of the present invention, a description has been given by taking as an example a driver bit whose tip portion is formed in a hexagonal cross section. However, this driver bit can be arbitrarily adjusted according to the screw to be tightened. Which can be selected,
The effect obtained is the same regardless of which one is selected.
【００１６】[0016]
【発明の効果】以上説明したように本発明の自動ねじ締
め機は、保持爪を開閉させる開閉手段を有しているた
め、これにより保持爪を開閉させることができ、ねじ供
給時の衝撃などで保持爪が拡開してしまったり、あるい
はねじを押し出す際に、ねじが保持爪の閉止力を受けて
弾かれてしまうような不具合を防止し、極めて良好なね
じの保持、解放を行うことができる等の利点がある。ま
た、拡開用操作片および閉止用操作片を有する操作部材
を、保持爪に設けた係合部材に交互に係合するよう配置
しているため、これを往復移動させるだけで簡単に保持
爪を開閉することが可能であるとともに、操作部材の取
り替えによって簡単に保持爪の開度を調整することがで
きる等の利点がある。As described above, since the automatic screw tightening machine of the present invention has the opening and closing means for opening and closing the holding claws, the holding claws can be opened and closed by this, and the impact at the time of screw supply can be achieved. To prevent the screw from receiving the closing force of the holding claw when the holding claw expands or push out the screw. There are advantages such as being able to. Further, since the operating members having the expanding operation piece and the closing operation piece are arranged so as to be alternately engaged with the engaging members provided on the holding claws, the holding claws can be easily moved simply by reciprocating them. Can be opened and closed, and the opening of the holding claw can be easily adjusted by replacing the operating member.
【図１】本発明に係る自動ねじ締め機の要部拡大一部切
欠断面図である。FIG. 1 is an enlarged partial cutaway sectional view of a main part of an automatic screwing machine according to the present invention.
【図２】本発明に係る自動ねじ締め機の正面図である。FIG. 2 is a front view of the automatic screw tightening machine according to the present invention.
【図３】本発明に係る自動ねじ締め機の要部拡大側面図
である。FIG. 3 is an enlarged side view of a main part of the automatic screw tightening machine according to the present invention.
【図４】本発明に係る自動ねじ締め機の要部拡大一部切
欠断面図である。FIG. 4 is an enlarged partial cutaway sectional view of a main part of the automatic screw tightening machine according to the present invention.
【図５】本発明に係る自動ねじ締め機の保持爪が開いた
状態を示す要部拡大側面図である。FIG. 5 is an essential part enlarged side view showing a state where a holding claw of the automatic screw tightening machine according to the present invention is opened.
【図６】本発明に係る自動ねじ締め機の第２の実施の形
態を示す説明図である。FIG. 6 is an explanatory view showing a second embodiment of the automatic screw tightening machine according to the present invention.
１ 自動ねじ締め機 ６ モータ ８ ドライバビット １０ 保持手段 １４ 開閉手段 １６ 係合部材 １７ 操作部材 １７ａ 閉止用操作片 １７ｂ 拡開用操作片 １８ シリンダ DESCRIPTION OF SYMBOLS 1 Automatic screwdriver 6 Motor 8 Driver bit 10 Holding means 14 Opening / closing means 16 Engaging member 17 Operating member 17a Closing operation piece 17b Expanding operation piece 18 Cylinder
Claims (2)
復駆動源の作動を受けて軸線方向に往復移動可能に構成
されたドライバビットを有し、このドライバビットの移
動路上にはねじを保持可能に構成した保持手段を配置し
た自動ねじ締め機であって、 前記保持手段は、前記ドライバビットを案内可能な本体
部と、この本体部に回動可能に連結した一対の保持爪
と、この保持爪を閉止あるいは拡開させる開閉手段とを
備えていることを特徴とする自動ねじ締め機。A driver bit configured to be rotatable under the driving of a rotary driving source and reciprocally movable in an axial direction by an operation of a reciprocating driving source, and a screw is provided on a moving path of the driver bit. An automatic screw tightening machine having a holding means configured to be capable of holding, wherein the holding means includes a main body capable of guiding the driver bit, and a pair of holding claws rotatably connected to the main body. An automatic screwing machine comprising: opening and closing means for closing or expanding the holding claw.
用操作片を有し、かつ他端には前記係合部材の間に割り
込んで前記保持爪を拡開可能な拡開用操作片を有する操
作部材と、 この操作部材を前記各操作片が前記係合部材に交互に係
合するよう移動させる往復駆動源とを備えていることを
特徴とする請求項１に記載の自動ねじ締め機。2. The opening / closing means includes an engaging member projecting from each of the holding claws, and a closing operation piece which can be engaged with the engaging member to close the holding claw at one end, and at the other end. Is an operating member having an operating member for expanding which can open the holding claw by being inserted between the engaging members; and moving the operating member so that the operating members are alternately engaged with the engaging member. 2. The automatic screwing machine according to claim 1, further comprising a reciprocating drive source for causing the reciprocating drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34419197A JPH11156648A (en) | 1997-11-28 | 1997-11-28 | Automatic screw fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34419197A JPH11156648A (en) | 1997-11-28 | 1997-11-28 | Automatic screw fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11156648A true JPH11156648A (en) | 1999-06-15 |
Family
ID=18367341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34419197A Pending JPH11156648A (en) | 1997-11-28 | 1997-11-28 | Automatic screw fastener |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11156648A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013107158A (en) * | 2011-11-18 | 2013-06-06 | Nitto Seiko Co Ltd | Chuck unit |
| CN116100302A (en) * | 2023-04-15 | 2023-05-12 | 河南菱亚建设工程有限公司 | Power distribution switch control equipment metal part processing equipment |
| CN116810330A (en) * | 2023-07-20 | 2023-09-29 | 益阳昱丰电气有限公司 | Automatic installation equipment for electrical cabinet |
-
1997
- 1997-11-28 JP JP34419197A patent/JPH11156648A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013107158A (en) * | 2011-11-18 | 2013-06-06 | Nitto Seiko Co Ltd | Chuck unit |
| CN116100302A (en) * | 2023-04-15 | 2023-05-12 | 河南菱亚建设工程有限公司 | Power distribution switch control equipment metal part processing equipment |
| CN116810330A (en) * | 2023-07-20 | 2023-09-29 | 益阳昱丰电气有限公司 | Automatic installation equipment for electrical cabinet |
| CN116810330B (en) * | 2023-07-20 | 2024-04-16 | 岳阳融盛实业有限公司 | Automatic installation equipment for electrical cabinet |
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