JP3043858B2 - Magnetic adsorption device - Google Patents
Magnetic adsorption deviceInfo
- Publication number
- JP3043858B2 JP3043858B2 JP3244148A JP24414891A JP3043858B2 JP 3043858 B2 JP3043858 B2 JP 3043858B2 JP 3244148 A JP3244148 A JP 3244148A JP 24414891 A JP24414891 A JP 24414891A JP 3043858 B2 JP3043858 B2 JP 3043858B2
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- magnetic
- cavity
- groove
- circuit block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は、磁性体をあるいは磁性
体に切換え可能に保持しあるいは保持される磁気吸着装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic attraction device for holding or holding a magnetic material so as to be switchable to a magnetic material.
【０００２】[0002]
【従来の技術】従来、磁気吸着装置は、例えば特公昭６
０−４６８０３号に示されているように、磁気作用面お
よび腔を有する磁気回路ブロックと、前記腔内に配置さ
れ前記腔の軸線の周りに回転可能である永久磁石と、前
記永久磁石に回転力を与えるための操作ノブとを備え
る。2. Description of the Related Art Conventionally, a magnetic attraction device is disclosed in, for example,
A magnetic circuit block having a magnetically active surface and a cavity, a permanent magnet disposed within the cavity and rotatable about an axis of the cavity, as shown in U.S. Pat. An operating knob for applying force.
【０００３】[0003]
【発明が解決しようとする課題】前記従来の磁気吸着装
置によれば、操作ノブを回して永久磁石を回転させるこ
とにより、前記永久磁石を収容する磁気回路ブロックの
磁気作用面を励磁状態または非励磁状態におくことがで
き、これにより、前記磁気作用面に工作物のような磁性
体あるいは工作機械のベッドのような物体に対する吸着
性を付与し、また、これを解除することができる。とこ
ろで、磁気吸着装置をオートメーションラインに設置し
てこれを使用することが考えられ、また、この場合の前
記磁気吸着装置の遠隔操作は前記操作ノブに回転力を与
えるための作動装置を用いることが考えられる。しか
し、前記磁気吸着装置の遠隔操作のためには、回転力を
付与する作動装置より、液圧シリンダのような直線方向
力を与える作動装置を用いるほうが該作動装置の制御が
容易であり、また、設置費用の低減を図るうえで有利で
ある。本発明の目的は、直線方向力を受けて永久磁石が
回転運動をする磁気吸着装置を提供することにある。According to the conventional magnetic attraction device, the operation knob is turned to rotate the permanent magnet, so that the magnetic working surface of the magnetic circuit block that houses the permanent magnet is in an excited state or a non-excited state. It can be in an excited state, so that the magnetic working surface can be given or released from a magnetic substance such as a workpiece or an object such as a bed of a machine tool. By the way, it is conceivable to install a magnetic attraction device in an automation line and use it, and in this case, remote control of the magnetic attraction device may use an operating device for applying a rotational force to the operation knob. Conceivable. However, for remote control of the magnetic attraction device, it is easier to control the operating device by using an operating device that applies a linear force, such as a hydraulic cylinder, than an operating device that applies a rotational force. This is advantageous in reducing the installation cost. SUMMARY OF THE INVENTION An object of the present invention is to provide a magnetic attraction device in which a permanent magnet rotates by receiving a linear force.
【０００４】[0004]
【課題を解決するための手段、発明の作用および効果】
本発明に係る磁気吸着装置は、磁気作用面および腔を有
する磁気回路ブロックと、前記腔内に配置され実質的に
前記腔の軸線の周りに回転可能でありかつ前記軸線の方
向へ移動可能である永久磁石と、前記永久磁石に連結さ
れ前記腔外に伸びるロッドとを含み、前記永久磁石に該
永久磁石の周面を螺線状に伸びる溝が設けられ、また、
前記磁気回路ブロックに前記溝に係合する突起が設けら
れている。Means for Solving the Problems, Functions and Effects of the Invention
A magnetic attraction device according to the present invention includes a magnetic circuit block having a magnetic working surface and a cavity, and disposed within the cavity and substantially rotatable about the axis of the cavity and movable in the direction of the axis. A permanent magnet, including a rod connected to the permanent magnet and extending out of the cavity, the permanent magnet is provided with a groove extending spirally around the peripheral surface of the permanent magnet,
The magnetic circuit block has a projection that engages with the groove.
【０００５】本発明によれば、永久磁石の螺線状の溝に
磁気回路ブロックの突起が係合しており、また、前記永
久磁石が前記磁気回路ブロックの腔内をその軸線方向お
よび軸線の周りに移動可能であることから、前記ロッド
を介して前記永久磁石に前記軸線方向に引張力または押
圧力を及ぼすとき、前記突起の反作用のために前記溝の
前記突起に対する相対位置が変化し、前記永久磁石に前
記軸線方向への直線運動と前記軸線の周りの回転運動と
が同時に生じる。前記永久磁石の回転運動により前記磁
気回路ブロックの磁気作用面を励磁状態または非励磁状
態におくことができ、前記ロッドへの軸線方向力は、例
えば液圧シリンダのような作動装置を用いて付与するこ
とができる。According to the present invention, the protrusion of the magnetic circuit block is engaged with the spiral groove of the permanent magnet, and the permanent magnet moves inside the cavity of the magnetic circuit block in the axial direction and the axial direction. Since it is movable around, when a tensile force or a pressing force is applied to the permanent magnet through the rod in the axial direction, a relative position of the groove to the projection changes due to a reaction of the projection, A linear motion in the axial direction and a rotational motion about the axis occur simultaneously in the permanent magnet. The rotating surface of the magnetic circuit block can be in an excited state or a non-excited state by the rotation of the permanent magnet, and the axial force on the rod is applied using an actuator such as a hydraulic cylinder. can do.
【０００６】前記溝は、前記永久磁石の一端または他端
に連結され該永久磁石とともに運動可能である非磁性部
材に設けることができる。[0006] The groove may be provided in a non-magnetic member connected to one end or the other end of the permanent magnet and movable with the permanent magnet.
【０００７】[0007]
【実施例】図１および図２を参照すると、本発明に係る
磁気吸着装置１０は、磁気回路ブロック１２と、磁気回
路ブロック１２に設けられた円筒状の腔１４の内部に配
置された円柱状の永久磁石１６とを含む。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 and 2, a magnetic attraction device 10 according to the present invention comprises a magnetic circuit block 12 and a cylindrical member 14 disposed inside a cylindrical cavity 14 provided in the magnetic circuit block 12. And the permanent magnet 16.
【０００８】磁気回路ブロック１２はほぼ矩形の横断面
形状を有し、相対する一対の細長い板状の磁極部材１８
と、これらの磁極部材１８間に配置されかつこれらの磁
極部材１８に接着された細長い板状の非磁性のセパレー
タ２０とを含む。The magnetic circuit block 12 has a substantially rectangular cross-sectional shape, and a pair of opposing elongated plate-shaped magnetic pole members 18.
And an elongated plate-shaped non-magnetic separator 20 disposed between the magnetic pole members 18 and adhered to the magnetic pole members 18.
【０００９】磁気回路ブロック１２は、通常、図１にお
ける下部に、セパレータ２０の下面を底面として該底面
から傾斜して伸びる一対の側壁面を有する溝２１を有
し、傾斜する各側壁面を規定する各磁極部材１８の下面
が磁気作用面２２を規定している。各磁気作用面２２
は、永久磁石１６の回転操作により、工作物、工作機械
の一部のような磁性体（図示せず）に磁気的に吸着可能
の励磁状態およびその解除状態である非励磁状態におか
れる。The magnetic circuit block 12 generally has a groove 21 having a pair of side walls extending obliquely from the bottom surface with the lower surface of the separator 20 as a bottom surface in the lower portion of FIG. The lower surface of each magnetic pole member 18 defines a magnetic operating surface 22. Each magnetic action surface 22
By the rotating operation of the permanent magnet 16, the magnet is set in an excited state in which it can be magnetically attracted to a magnetic body (not shown) such as a workpiece or a part of a machine tool, and a non-excited state in which it is released.
【００１０】磁気回路ブロック１２の腔１４は、各磁極
部材１８の側部およびセパレータ２０の中央部をこれら
の長手方向に円筒状にくり抜いて成り、その長さ寸法は
永久磁石１６の長さ寸法より長く、また、その直径は永
久磁石１６の直径よりわずかに大きい。腔１４および永
久磁石１６の長さ寸法の差は、永久磁石１６の軸線をを
含む平面に後記溝３２を正投影して得られる図の長さ寸
法にほぼ等しいように設定することが望ましい。これに
より、後記突起３４が後記溝３２の始点から終点まで係
合する間に永久磁石１６が前記軸線方向に進む移動距離
が確保される。The cavity 14 of the magnetic circuit block 12 is formed by cylindrically hollowing out the side portion of each magnetic pole member 18 and the center portion of the separator 20 in the longitudinal direction thereof. It is longer and its diameter is slightly larger than the diameter of the permanent magnet 16. It is desirable that the difference between the lengths of the cavity 14 and the permanent magnet 16 is set to be substantially equal to the length obtained by orthographic projection of the groove 32 described later on a plane including the axis of the permanent magnet 16. Accordingly, the moving distance of the permanent magnet 16 in the axial direction is secured while the post-projection 34 is engaged from the start point to the end point of the post-groove 32.
【００１１】腔１４の両端は、例えばビス２３により磁
極部材１８に固定された非磁性のプレート２４，２６で
閉鎖されている。腔１４は、これを貫通孔としないで一
端開放の孔とし、開放端のみをプレート（図示せず）で
閉鎖してもよい。Both ends of the cavity 14 are closed by non-magnetic plates 24 and 26 fixed to the magnetic pole member 18 by screws 23, for example. The cavity 14 may not be a through hole but a hole that is open at one end, and only the open end may be closed by a plate (not shown).
【００１２】永久磁石１６には、その一端に、これと同
軸的にロッド２８が連結されている。図示の例では、ロ
ッド２８は、永久磁石１６の一端に接着され前記永久磁
石と同径の非磁性の円板から成る接続部材３０を介して
永久磁石１６に連結されている。接続部材３０の平面形
状は円形に限らず、例えば多角形とすることができ、ま
た、接続部材３０を介することなしに永久磁石１６の前
記一端にロッド２８を直接に連結することができる。ロ
ッド２８の先端部はプレート２４を滑動可能に貫通し、
腔１４の外部に伸びている。ロッド２８を介して、永久
磁石１６に軸線方向への引張力または押圧力を及ぼすこ
とができる。A rod 28 is connected to one end of the permanent magnet 16 coaxially therewith. In the illustrated example, the rod 28 is bonded to one end of the permanent magnet 16 and connected to the permanent magnet 16 via a connecting member 30 formed of a non-magnetic disc having the same diameter as the permanent magnet. The planar shape of the connection member 30 is not limited to a circle, but may be, for example, a polygon. Further, the rod 28 can be directly connected to the one end of the permanent magnet 16 without the intervention of the connection member 30. The tip of the rod 28 slidably penetrates the plate 24,
It extends outside the cavity 14. An axial tensile force or pressing force can be applied to the permanent magnet 16 via the rod 28.
【００１３】ロッド２８を接続部材３０に固定する図示
の例に代えて、接続部材３０に対してロッド２８が回転
可能であるようにロッド２８を接続部材３０に連結する
ことができ、これによれば、ロッド２８の軸線方向運動
に伴なって永久磁石１６に生じる後記回転運動がロッド
２８に伝達することが阻止される。[0013] Instead of the illustrated example in which the rod 28 is fixed to the connecting member 30, the rod 28 can be connected to the connecting member 30 so that the rod 28 can rotate with respect to the connecting member 30. For example, the rotational movement of the permanent magnet 16 caused by the axial movement of the rod 28 is prevented from being transmitted to the rod 28.
【００１４】永久磁石１６にはその周面（円筒面）を螺
線状に伸びる溝３２が設けられ、また、磁気回路ブロッ
ク１２、より詳細にはセパレータ２０に、溝３２に係合
する突起３４が設けられている。図示の例では、溝３２
は、永久磁石１６の前記一端上の一点から螺線方向に９
０度の回転角度を経た点まで伸びている。また、突起３
４は、セパレータ２０に設けられ腔１６に開放する孔３
６に圧入または螺合された円柱状のピース３８に設けら
れた小径の先端部から成る。孔３６は、接続部材３０が
プレート２４に当接した状態において突起３４が溝３２
の終点に対応する位置に設けられている。The permanent magnet 16 is provided with a groove 32 extending in a spiral shape on the peripheral surface (cylindrical surface), and a protrusion 34 engaging with the groove 32 is formed on the magnetic circuit block 12, more specifically, on the separator 20. Is provided. In the illustrated example, the groove 32
Is 9 points in a spiral direction from one point on the one end of the permanent magnet 16.
It extends to a point after a rotation angle of 0 degrees. Also, protrusion 3
4 is a hole 3 provided in the separator 20 and opened to the cavity 16.
6 has a small-diameter distal end provided on a cylindrical piece 38 press-fitted or screwed into the same. When the connection member 30 is in contact with the plate 24, the projection 34 is formed in the groove 32.
Is provided at a position corresponding to the end point of.
【００１５】ロッド２８に押圧力を及ぼすと、永久磁石
１６は、溝３２に係合する突起３４からの反作用とし
て、図１でみて時計方向への回転力を受ける。このた
め、永久磁石１６は、突起３４が溝３２に係合する間、
時計方向に９０度の角度を回転しかつ孔１６を図２で見
て左方へ移動する。永久磁石１６の回転運動および直線
運動は、突起３４が接続部材３０に当接するときに停止
する。同様に、ロッド２８に引張力を及ぼすと、永久磁
石１６は図１で見て反時計方向へ回転しまた図２で見て
右方向へ直線移動をする。永久磁石１６の磁化方向が図
１でみて磁極部材１８およびセパレータ２０を横切る横
方向に一致するときに磁気作用面２２が励磁状態とな
り、また、前記時下方向がセパレータ２０の伸長方向
（上下方向）に一致するときに非励磁状態となる。When a pressing force is applied to the rod 28, the permanent magnet 16 receives a clockwise rotational force as seen in FIG. 1 as a reaction from the projection 34 engaging with the groove 32. For this reason, while the projection 34 is engaged with the groove 32,
2. Rotate clockwise 90 degrees and move hole 16 to the left as viewed in FIG. The rotational movement and the linear movement of the permanent magnet 16 stop when the projection 34 comes into contact with the connecting member 30. Similarly, when a tensile force is applied to the rod 28, the permanent magnet 16 rotates counterclockwise as viewed in FIG. 1 and linearly moves to the right as viewed in FIG. When the magnetization direction of the permanent magnet 16 coincides with the transverse direction crossing the magnetic pole member 18 and the separator 20 as viewed in FIG. ) Is set to the non-excitation state.
【００１６】溝３２は、図示の例に代えて、９０度以上
の回転角度を伸びるように設定することができ、また、
永久磁石１６の他端の側にあるいは中央部に設けること
ができる。The groove 32 can be set so as to extend a rotation angle of 90 degrees or more instead of the illustrated example.
It can be provided at the other end of the permanent magnet 16 or at the center.
【００１７】図３および図４に示すように、溝３２は永
久磁石１６にこれと同軸的に接続された非磁性部材４０
に形成することができる。図示の非磁性部材４０は永久
磁石１６より長さ寸法が短い同径の円柱体形状を有し、
永久磁石１６の前記一端に固定されている。もちろん、
非磁性部材４０は永久磁石１６より長いものであること
を妨げない。また、非磁性部材４０は永久磁石１６の前
記他端に接続してもよい。As shown in FIGS. 3 and 4, the groove 32 has a nonmagnetic member 40 coaxially connected to the permanent magnet 16.
Can be formed. The illustrated non-magnetic member 40 has a columnar shape of the same diameter whose length is shorter than the permanent magnet 16,
It is fixed to the one end of the permanent magnet 16. of course,
The non-magnetic member 40 does not prevent it from being longer than the permanent magnet 16. Further, the non-magnetic member 40 may be connected to the other end of the permanent magnet 16.
【００１８】また、永久磁石１６として、図１および図
２に示す円柱体形状のものに代えて、前記磁化方向に平
行な相対する一対の側面を有するいわゆる小判形状のも
のを用いるときは、永久磁石１６自体に溝を設けるよ
り、前記した溝が設けられた非磁性部材４０を使用する
ことが望ましい。When a permanent magnet 16 having a so-called oval shape having a pair of opposite side surfaces parallel to the magnetization direction is used instead of the cylindrical magnet shown in FIGS. It is desirable to use the non-magnetic member 40 provided with the above-mentioned groove, rather than providing a groove in the magnet 16 itself.
【図１】本発明に係る磁気吸着装置の正面図である。FIG. 1 is a front view of a magnetic attraction device according to the present invention.
【図２】図１の線２−２に沿って得た、磁気回路ブロッ
クの縦断面図である。FIG. 2 is a longitudinal sectional view of the magnetic circuit block taken along line 2-2 in FIG. 1;
【図３】本発明に係る磁気吸着装置の他の例の正面図で
ある。FIG. 3 is a front view of another example of the magnetic adsorption device according to the present invention.
【図４】図３の線４−４に沿って得た、磁気回路ブロッ
クの縦断面図である。FIG. 4 is a longitudinal sectional view of the magnetic circuit block taken along line 4-4 in FIG. 3;
１０ 磁気吸着装置 １２ 磁気回路ブロック １４ 腔 １６ 永久磁石 ２２ 磁気作用面 ２８ ロッド ３２ 溝 ３４ 突起 DESCRIPTION OF SYMBOLS 10 Magnetic adsorption apparatus 12 Magnetic circuit block 14 cavity 16 Permanent magnet 22 Magnetic working surface 28 Rod 32 Groove 34 Projection
Claims (2)
ロックと、前記腔内に配置され前記腔の軸線の周りに回
転可能でありかつ前記軸線の方向へ移動可能である永久
磁石と、前記永久磁石に連結され前記腔外に伸びるロッ
ドとを含み、前記永久磁石に該永久磁石の周面を螺線状
に伸びる溝が設けられ、また、前記磁気回路ブロックに
前記溝に係合する突起が設けられている、磁気吸着装
置。A magnetic circuit block having a magnetically active surface and a cavity; a permanent magnet disposed within the cavity and rotatable about an axis of the cavity and movable in the direction of the axis; A rod connected to a magnet and extending out of the cavity, wherein the permanent magnet is provided with a groove extending in a spiral shape on the peripheral surface of the permanent magnet, and the magnetic circuit block has a projection engaging with the groove. The magnetic attraction device provided.
ロックと、前記腔内に配置されかつ互いに結合された、
前記軸線の周りに回転可能でありかつ前記腔の軸線の方
向へ移動可能である永久磁石および非磁性部材と、前記
永久磁石または前記非磁性部材に連結され前記腔外に伸
びるロッドとを含み、前記非磁性部材に該非磁性部材の
周面を螺線状に伸びる溝が設けられ、また、前記磁気回
路ブロックに前記溝に係合する突起が設けられている、
磁気吸着装置。2. A magnetic circuit block having a magnetically active surface and a cavity, and disposed in the cavity and coupled to each other,
A permanent magnet and a non-magnetic member rotatable about the axis and movable in the direction of the axis of the cavity, and a rod connected to the permanent magnet or the non-magnetic member and extending out of the cavity, The nonmagnetic member is provided with a groove extending spirally on the peripheral surface of the nonmagnetic member, and the magnetic circuit block is provided with a projection that engages with the groove.
Magnetic adsorption device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3244148A JP3043858B2 (en) | 1991-08-30 | 1991-08-30 | Magnetic adsorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3244148A JP3043858B2 (en) | 1991-08-30 | 1991-08-30 | Magnetic adsorption device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0562823A JPH0562823A (en) | 1993-03-12 |
| JP3043858B2 true JP3043858B2 (en) | 2000-05-22 |
Family
ID=17114478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3244148A Expired - Fee Related JP3043858B2 (en) | 1991-08-30 | 1991-08-30 | Magnetic adsorption device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3043858B2 (en) |
-
1991
- 1991-08-30 JP JP3244148A patent/JP3043858B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0562823A (en) | 1993-03-12 |
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