JP5704385B2 - Work alignment device - Google Patents

Work alignment device Download PDF

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JP5704385B2
JP5704385B2 JP2010216665A JP2010216665A JP5704385B2 JP 5704385 B2 JP5704385 B2 JP 5704385B2 JP 2010216665 A JP2010216665 A JP 2010216665A JP 2010216665 A JP2010216665 A JP 2010216665A JP 5704385 B2 JP5704385 B2 JP 5704385B2
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workpiece
rotating ring
rotation
head
ring
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JP2012071921A (en
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憲幸 杉浦
憲幸 杉浦
森本　敏則
敏則 森本
真史 小川
真史 小川
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Aisin Corp
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Aisin Seiki Co Ltd
Aisin Corp
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Description

本発明は螺子等のように軸部および頭部をもつワークを整列させ得るワーク整列装置に関する。   The present invention relates to a workpiece alignment apparatus that can align a workpiece having a shaft portion and a head, such as a screw.

ワーク整列装置として、筒形状の収容空間を形成する壁部をもつ基体と、基体の収容空間の底部に回転可能に配置された回転ボウルと、壁部に設けられた上昇傾斜面をもつ上昇傾斜部と、壁部の内周壁面にこれの周方向に沿って形成された整列トラックとを有するものが知られている（特許文献１）。このものによれば、多数のワークからなるワーク集団を回転ボウルの上面に載せた状態で、回転ボウルをこれの中心線の回りで回転させ、回転ボウルに載せられているワークを整列させた状態で順に上昇傾斜面に沿って上昇させ、整列トラックに移動させることにしている。   As a work aligning device, a base having a wall portion forming a cylindrical storage space, a rotating bowl rotatably disposed at the bottom of the base storage space, and a rising slope having a rising slope provided on the wall And an alignment track formed on the inner peripheral wall surface of the wall portion along the circumferential direction thereof are known (Patent Document 1). According to this, in a state where a work group consisting of a large number of workpieces is placed on the upper surface of the rotating bowl, the rotating bowl is rotated around its center line, and the workpieces placed on the rotating bowl are aligned. In this order, they are lifted along the rising slope and moved to the alignment track.

更に、部品搬送装置として、基体と、基体内に回転可能に配置され収容室を形成する回転容器と、回転容器を回転させる第１モータと、回転容器の収容室に回転可能に配置された回転板と、回転板を回転させる第２モータと、基体に架設されたワイヤとを有するものが知られている（特許文献２）。このものでは、多数の部品からなる部品集団を回転板の上面に載せた状態で、回転板を回転させる。遠心力で部品は回転板の外周側つまり回転容器の内周壁に寄せられる。寄せられた部品は、回転容器の内周壁に沿って上昇する。正姿勢でない部品はワイヤによりはねられる。正姿勢の部品はワイヤによりはねられないので、整列される。   Further, as the component conveying device, a base body, a rotating container that is rotatably disposed in the base body to form a storage chamber, a first motor that rotates the rotating container, and a rotation that is rotatably disposed in the storage chamber of the rotating container One having a plate, a second motor for rotating the rotating plate, and a wire laid on a base is known (Patent Document 2). In this device, the rotating plate is rotated in a state in which a group of components including a large number of components is placed on the upper surface of the rotating plate. The parts are brought close to the outer peripheral side of the rotating plate, that is, the inner peripheral wall of the rotating container by centrifugal force. The gathered parts rise along the inner peripheral wall of the rotating container. Parts that are not in the correct position are rebounded by the wire. Correctly positioned parts are not rebounded by the wire and are therefore aligned.

また部品整列供給装置として、円柱状の部品を受ける溝が形成されたドラムを平面回転可能とし、そのドラムの外側にフェンスを垂直に設け、フェンスとドラムとの間に円柱状部品誘導用の羽根を複数配設し、振動付加装置による整列供給のような騒音や締結部等の緩みを発生させずに、円柱状部品を外部に整列供給するものが知られている（特許文献３）。   Also, as a parts alignment supply device, a drum in which a groove for receiving a cylindrical part is formed can be rotated on a plane, a fence is vertically provided outside the drum, and a blade for guiding a cylindrical part is provided between the fence and the drum. There is known a method of arranging and supplying cylindrical parts to the outside without generating noise and loosening of a fastening part or the like as in the case of alignment supply by a vibration applying device (Patent Document 3).

特開２００３−２０１０１１号公報JP 2003-201011 A 実開平７−２４８２０号公報Japanese Utility Model Publication No. 7-24820 特開平８−２６４６１号公報Japanese Patent Laid-Open No. 8-26461

上記した技術によれば、部品を整列させ得るものの、回転ボウル、回転板、ドラムは、装入した部品（ワーク）の全体を載せて回転させる構造であるため、回転ボウル、回転板、ドラムを回転させる回転駆動源を大型化させなければならない。更に産業界では、頭部を上側に軸部を鉛直方向に沿って垂下させた状態の正姿勢にワークを整列させるワーク整列装置の開発が要望されている。   According to the technique described above, although the parts can be aligned, the rotating bowl, the rotating plate, and the drum are structured to rotate the entire loaded part (workpiece). The rotating drive source to be rotated must be enlarged. Further, in the industry, there is a demand for the development of a workpiece alignment device that aligns workpieces in a normal posture with the head portion on the upper side and the shaft portion hanging down along the vertical direction.

本発明は上記した実情に鑑みてなされたものであり、回転リングおよび基体の固定壁部によって、複数のワークを垂下状態とさせた正姿勢で整列させる整列溝を形成することにより、回転駆動源を過剰に大型化させることなく、複数のワークを垂下状態とさせた正姿勢で整列させ得る新規なワーク整列装置を提供することを課題とする。   The present invention has been made in view of the above circumstances, and a rotational drive source is formed by forming an alignment groove for aligning a plurality of workpieces in a suspended posture by a rotating ring and a fixed wall portion of a base body. It is an object of the present invention to provide a novel workpiece alignment apparatus that can align a plurality of workpieces in a normal posture in a suspended state without excessively increasing the size of the workpiece.

本発明に係るワーク整列装置は、軸部と軸部の一端部に設けられた頭部とをもつワークのうち頭部を軸部の上側とし且つ前記軸部を鉛直方向に沿わせるように前記ワークを垂下状態の正姿勢に整列させるワーク整列装置であって、（ｉ）縦方向に延びる中心線の回りに形成された筒形状の内周壁面をもつ固定壁部を有する基体と、（ｉｉ）基体の固定壁部の内周側に配置され基体の中心線の回りで水平方向に沿って回転可能に設けられた回転リングと、（ｉｉｉ）回転リングを中心線の回りで水平方向に沿って回転させる回転駆動源と、（ｉｖ）基体に設けられ垂下状態の正姿勢に整列されたワークを排出させるワーク排出部とを具備しており、（ｖ）基体の固定壁部は、回転リングの周方向に沿って延設されワークの頭部を接近または載置させて頭部の位置を規制させる固定規制面を有し、（ｖｉ）回転リングは、回転リングの周方向に沿って延設されワークの頭部を接近または載置させて頭部の位置を規制させる回転規制面を有しており、（ｖｉｉ）回転リングおよび基体の固定壁部は、ワークの頭部を軸部の上側とし且つワークの軸部を鉛直方向に沿って下方に向かって垂下させるように複数のワークを垂下状態の正姿勢で整列させる整列溝を形成しており、整列溝は、回転リングの周方向に沿って延設されており、上方が開放されるように回転リングの外周壁面と基体の固定壁部の内周壁面との間に配置され、回転リングの回転規制面は、垂下状態の正姿勢とされたワークの頭部を接近または載置させるように回転リングの周方向に沿って延設された第１回転規制面と、垂下状態の正姿勢とされたワークの頭部を接近または載置させるように第１回転規制面よりもΔｈぶん下方に位置しかつ回転リングの周方向に沿って延設された第２回転規制面とを有しており、回転リングは、第２回転規制面のうち回転リングの回転方向の上流側に形成された第１係合面と、第２回転規制面のうち回転リングの回転方向の下流側に形成された第２係合面とを有することを特徴とする。 The workpiece alignment apparatus according to the present invention is configured such that, of a workpiece having a shaft portion and a head portion provided at one end portion of the shaft portion, the head portion is above the shaft portion and the shaft portion is arranged along the vertical direction. A workpiece alignment device for aligning a workpiece in a suspended vertical posture, wherein (i) a base body having a fixed wall portion having a cylindrical inner peripheral wall surface formed around a longitudinal center line; ) A rotating ring disposed on the inner peripheral side of the fixed wall portion of the base body and provided so as to be rotatable around the center line of the base body along the horizontal direction; and (iii) the rotating ring along the horizontal direction around the center line. And (iv) a work discharge portion that discharges a work that is provided on the base body and is aligned in a normal posture in a suspended state, and (v) the fixed wall portion of the base body is a rotary ring. The head of the work is extended along the circumferential direction of And (vi) the rotating ring extends along the circumferential direction of the rotating ring and moves the head of the work closer to or rests on the position of the head. (Vii) The rotation ring and the fixed wall portion of the base body hang downwardly along the vertical direction with the head portion of the workpiece being the upper side of the shaft portion. An alignment groove for aligning a plurality of workpieces in a suspended posture is formed, and the alignment groove extends along the circumferential direction of the rotating ring, and the rotating ring is opened so that the upper part is opened. The rotation restricting surface of the rotating ring is arranged between the outer peripheral wall surface of the substrate and the inner peripheral wall surface of the fixed wall portion of the base, and the rotating ring is arranged so that the head of the workpiece in the suspended state approaches or is placed. A first rotation restricting surface extending along the circumferential direction of the The second rotation restricting surface that is located by Δh lower than the first rotation restricting surface and extends along the circumferential direction of the rotating ring so that the head of the workpiece in the normal posture is approached or placed. The rotation ring includes a first engagement surface formed on the upstream side of the rotation direction of the rotation ring among the second rotation restriction surfaces, and a rotation direction of the rotation ring among the second rotation restriction surfaces. characterized Rukoto that having a second engagement surface formed on the downstream side.

本発明に係る整列装置によれば、基体の固定壁部は、回転リングの周方向に沿って延設されワークの頭部を接近または載置させる固定規制面を有する。回転リングは、回転リングの周方向に沿って延設されワークの頭部を接近または載置させる回転規制面を有する。この回転規制面は、垂下状態の正姿勢とされたワークの頭部を接近または載置させるように回転リングの周方向に沿って延設された第１回転規制面と、垂下状態の正姿勢とされたワークの頭部を接近または載置させるように第１回転規制面よりもΔｈぶん下方に位置しかつ回転リングの周方向に沿って延設された第２回転規制面とを有しており、回転リングは、第２回転規制面のうち回転リングの回転方向の上流側に形成された第１係合面と、第２回転規制面のうち回転リングの回転方向の下流側に形成された第２係合面とを有する。
回転リングおよび固定壁部は、回転リングの周方向に沿って延設され上方が開放されるように回転リングの外周壁面と基体の固定壁部の内周壁面とで形成された整列溝を形成する。 According to the alignment apparatus of the present invention, the fixed wall portion of the base body has a fixed restricting surface that extends along the circumferential direction of the rotating ring and allows the head of the workpiece to approach or rest. The rotating ring has a rotation restricting surface that extends along the circumferential direction of the rotating ring and allows the head of the workpiece to approach or rest. The rotation restricting surface includes a first rotation restricting surface extending along the circumferential direction of the rotating ring so as to approach or place the head of the workpiece in the suspended state, and the suspended posture of the normal posture. A second rotation restricting surface that is positioned Δh below the first rotation restricting surface and extends along the circumferential direction of the rotating ring so as to approach or place the head of the workpiece. The rotating ring is formed on the downstream side of the second rotation restricting surface in the rotation direction of the rotating ring and the first engaging surface formed on the upstream side of the rotating ring in the rotating direction. A second engaging surface.
The rotating ring and the fixed wall portion form an alignment groove formed by the outer peripheral wall surface of the rotating ring and the inner peripheral wall surface of the fixed wall portion of the base body so as to extend along the circumferential direction of the rotating ring and open upward. To do.

整列溝に進入したワークは基体の固定壁部の固定規制面および回転リングの第１回転規制面および第２回転規制面に受け止められ、一部のワークはその頭部が固定規制面と第１回転規制面あるいは第２回転規制面に保持され、ワークの軸部は整列溝に落ちる。回転リングの回転によりワークの軸部は整列溝に落ち、ワークの頭部は第１回転規制面から第２回転規制面に落ち、ワークの軸部は鉛直方向に沿って下方に向かって垂下するように垂下状態とされる。このように複数のワークが整列溝に垂下状態で整列されて正姿勢とされる。この状態で、回転駆動源により回転リングが中心線の回りで回転すると、ワークは整列溝に垂下状態の正姿勢で進入したまま、回転リングの第１係合面によりワーク排出部に向けて移動され、ワーク排出部から基体の外部に排出される。
ワークがワーク排出部に詰まる場合には回転リングを逆回転させてワークの頭部を第２係合面を介して第２回転規制面から第１回転規制面に戻すこともできる。
このように、回転リングの第１回転規制面、第２回転規制面および第２回転規制面の第１係合面と第２係合面とによって、回転リングのトルクがワークに効率的に伝わり、第１係合面はワークの排出部への移動を促進し、かつ、必要に応じて回転リングを逆回転させてワークが詰まることを防止できる。 The workpieces that have entered the alignment groove are received by the fixing restriction surface of the fixed wall portion of the base body and the first rotation restriction surface and the second rotation restriction surface of the rotating ring. The shaft part of the workpiece falls into the alignment groove while being held on the rotation restricting surface or the second rotation restricting surface. The shaft portion of the workpiece falls into the alignment groove by the rotation of the rotating ring, the head portion of the workpiece falls from the first rotation restricting surface to the second rotation restricting surface, and the shaft portion of the work hangs downward along the vertical direction. As shown in FIG. In this way, a plurality of workpieces are aligned in a suspended state in the alignment groove to be in a normal posture. In this state, when the rotation ring is rotated around the center line by the rotation drive source, the work moves toward the work discharge portion by the first engagement surface of the rotation ring while entering the alignment groove in a suspended posture. Then, the workpiece is discharged from the workpiece discharge portion to the outside of the substrate.
When the workpiece is jammed in the workpiece discharge portion, the rotation ring can be rotated in the reverse direction to return the workpiece head from the second rotation regulating surface to the first rotation regulating surface via the second engagement surface.
As described above, the torque of the rotating ring is efficiently transmitted to the workpiece by the first engagement restricting surface, the second rotation restricting surface, and the first engaging restricting surface and the second engaging restricting surface of the second rotating restricting surface. The first engagement surface promotes the movement of the workpiece to the discharge portion, and can prevent the workpiece from becoming clogged by rotating the rotating ring in reverse.

以上説明したように本発明に係る整列装置によれば、整列溝に進入したワークによれば、頭部は軸部の上側となり、軸部は鉛直方向に沿って下方に向かって垂下する。このように複数のワークは整列溝に垂下状態で整列されて正姿勢とされる。この状態で、回転駆動源により回転リングが中心線の回りで回転すると、ワークは整列溝に垂下状態の正姿勢で進入したまま、ワーク排出部に移動され、ワーク排出部から基体の外部に排出される。従って、垂下状態とされた正姿勢のワークが得られる。
さらに、回転リングの第１回転規制面、第２回転規制面および第２回転規制面の第１係合面と第２係合面とによって、回転リングのトルクがワークに効率的に伝わり、ワークの排出部への移動を促進し、かつ、必要に応じて回転リングを逆回転させてワークが詰まることを防止できる。 As described above, according to the aligning device according to the present invention, according to the workpiece that has entered the alignment groove, the head is on the upper side of the shaft portion, and the shaft portion hangs downward along the vertical direction. In this way, the plurality of workpieces are aligned in a suspended state in the alignment groove and are in a normal posture. In this state, when the rotary ring is rotated around the center line by the rotation drive source, the work is moved to the work discharge portion while entering the alignment groove in a suspended posture, and discharged from the work discharge portion to the outside of the substrate. Is done. Accordingly, a workpiece with a normal posture in a suspended state is obtained.
Furthermore, the torque of the rotating ring is efficiently transmitted to the workpiece by the first engagement regulating surface and the second engagement regulating surface of the first rotation regulating surface, the second rotation regulating surface, and the second rotation regulating surface of the rotating ring. It is possible to prevent the workpiece from being clogged by accelerating the movement of the workpiece to the discharge portion and rotating the rotating ring in the reverse direction as necessary.

回転リングはリング形状をなしており、上方からの投影面積が同一外径の円板に比較して少ないため、回転リングに載せられるワークの数は制限される。よって、回転リングを回転させるための回転駆動源が過剰に大型化することが抑制される。   Since the rotating ring has a ring shape and the projected area from above is smaller than that of a disk having the same outer diameter, the number of workpieces placed on the rotating ring is limited. Therefore, it is possible to suppress an excessive increase in the size of the rotational drive source for rotating the rotating ring.

実施形態１に係り、装置の要部を示す断面図である。FIG. 3 is a cross-sectional view illustrating a main part of the device according to the first embodiment. 装置の要部を示す平面図である。It is a top view which shows the principal part of an apparatus. 装置の整列溝付近を示す断面図である。It is sectional drawing which shows the alignment groove vicinity of an apparatus. 装置の整列溝にワークが整列されている状態を拡大して示す平面図である。It is a top view which expands and shows the state in which the workpiece | work is aligned in the alignment groove | channel of an apparatus. 装置の整列溝にワークが整列されている状態を拡大して示す断面図である。It is sectional drawing which expands and shows the state in which the workpiece | work is aligned in the alignment groove of an apparatus. ワークの軸部が整列溝に進入されて整列されている状態を示す断面図である。It is sectional drawing which shows the state in which the axial part of the workpiece | work entered the alignment groove | channel and is aligned. ホッパー室に装入されたワークが整列溝で整列されている状態を示す平面図である。It is a top view which shows the state in which the workpiece | work inserted in the hopper chamber is aligned in the alignment groove. ワークを載せた昇降部材を上昇させた状態を示す断面図である。It is sectional drawing which shows the state which raised the raising / lowering member which mounted the workpiece | work. 実施形態２に係り、ワークの軸部が整列溝に進入されて整列されている状態を示す断面図である。FIG. 10 is a cross-sectional view illustrating a state in which a shaft portion of a work is inserted into an alignment groove and aligned according to the second embodiment. 参考例に係り、ワークの軸部が整列溝に進入されて整列されている状態を示す断面図である。It is sectional drawing which shows the state which concerns on a reference example and the axial part of the workpiece | work entered the alignment groove, and is aligned.

ワークは、軸部と、軸部の一端部に設けられた頭部とをもつ。頭部は軸部の外径よりも大きい外径を有するものであり、鍔形状も含む。ワークは螺子、ボルト、リベット、ピンでも良く、更には、樹脂等への埋設部材等が挙げられる。回転リングの規制面は、垂下状態で正姿勢とされたワークの頭部を接近または載置させるように回転リングの周方向に沿って延設された第１回転規制面と、垂下状態とされたワークの頭部を接近または載置させるように第１回転規制面よりもΔｈぶん下方に位置しかつ回転リングの周方向に沿って延設された第２回転規制面とを有する。この場合、回転リングは、第２回転規制面のうち回転リングの回転方向の上流側に形成された第１係合面と、第２回転規制面のうち回転リングの回転方向の下流側に形成された第２係合面とを有する。 The workpiece has a shaft portion and a head portion provided at one end portion of the shaft portion. The head has an outer diameter larger than the outer diameter of the shaft portion, and includes a bowl shape. Work well screw, bolts, rivets, even a pin, furthermore, Ru include embedded member like into resin. Regulating surface of the rotary ring, the first rotation restricting surface which extends along the head of the normal posture to work in the circumferential direction of the rotating ring so as to approach or placed in a drooping state, the suspended state And a second rotation restricting surface which is located at a position lower than the first rotation restricting surface by Δh and extends along the circumferential direction of the rotating ring so as to approach or place the head of the workpiece. In this case, the rotating ring is formed on the downstream side of the second rotation restricting surface in the rotation direction of the rotating ring and the first engagement surface formed on the upstream side of the rotating ring in the rotating direction. A second engaging surface.

好ましい形態によれば、第１係合面は、垂下状態の正姿勢に整列させたワークを排出部に向けて前進させるように回転リングが正方向に回転とするとき、第２回転規制面に頭部が載置されたワークのうち頭部をワーク排出部に向けて前進させるように押圧させる押圧面である。押圧面は鉛直方向に形成されていることが好ましい。頭部を効果的に前進させ得るためである。   According to a preferred embodiment, the first engagement surface is formed on the second rotation restricting surface when the rotating ring is rotated in the forward direction so that the work aligned in the suspended normal posture is advanced toward the discharge portion. It is a pressing surface that presses the head of the workpiece on which the head is placed so as to advance toward the workpiece discharge unit. The pressing surface is preferably formed in the vertical direction. This is because the head can be effectively advanced.

また、好ましい形態によれば、第２係合面は、第２回転規制面から第１回転規制面に向かうにつれて昇り坂となる傾斜面で形成され、回転リングが中心線の回りで逆方向に回転とするとき、第２回転規制面に頭部が載置されたワークのうち頭部を第２回転規制面から第１回転規制面に移し替えて頭部を第１回転規制面において相対滑走可能とさせる。この場合、回転リングが逆方向に回転するときであっても、ワークが逆方向に回転することが抑制される。   According to a preferred embodiment, the second engagement surface is formed as an inclined surface that rises as it goes from the second rotation restriction surface to the first rotation restriction surface, and the rotation ring is in the reverse direction around the center line. When rotating, the head of the work whose head is placed on the second rotation restriction surface is moved from the second rotation restriction surface to the first rotation restriction surface, and the head is relatively slid on the first rotation restriction surface. Make it possible. In this case, even when the rotating ring rotates in the reverse direction, the work is suppressed from rotating in the reverse direction.

好ましい形態によれば、中心線に沿って切断した断面において、回転リングは規制面の下方に位置する接触係合部を有する。接触係合部は、頭部が規制面に載置されたワークのうち整列溝に進入した軸部の先端部と係合させ、且つ、ワークが回転リングと共に移動する移動力を前記係合により補助する。回転リングが回転するとき、ワークを排出部に向けて移動させる効率を高めることができる。   According to a preferred embodiment, the rotary ring has a contact engagement portion located below the restriction surface in a cross section cut along the center line. The contact engaging portion is engaged with the tip of the shaft portion that has entered the alignment groove among the workpieces whose heads are placed on the regulating surface, and the moving force by which the workpiece moves together with the rotating ring is caused by the engagement. Assist. When the rotating ring rotates, the efficiency of moving the workpiece toward the discharge unit can be increased.

好ましい形態によれば、中心線に沿って切断した断面において、回転リングの外周壁面と基体の固定壁部の内周壁面のうちの少なくとも一方は、ワークの軸部が当該一方に接触する頻度を低下させることにより、回転リングおよび／またはワークの損傷を抑える逃がし空間を有する。この場合、回転リングおよび／またはワークの損傷が抑制される利点が得られる。   According to a preferred embodiment, in the cross section cut along the center line, at least one of the outer peripheral wall surface of the rotating ring and the inner peripheral wall surface of the fixed wall portion of the base has a frequency with which the shaft portion of the workpiece contacts the one. By reducing, there is an escape space that reduces damage to the rotating ring and / or the workpiece. In this case, there is an advantage that damage to the rotating ring and / or the workpiece is suppressed.

好ましい形態によれば、基体は、（ｉ）多数のワークを収容させるホッパー室と、（ｉｉ）ホッパー室において上死点と下死点との間において中心線が延びる方向に沿って上昇および下降可能に配置され上昇に伴いワークを回転リングの回転規制面に移動させる昇降部材と、（ｉｉｉ）昇降部材をこれの上死点と下死点との間において昇降させる昇降駆動源とを有する。昇降駆動原が上昇方向に駆動すると、ホッパー室において昇降部材が上昇し、ホッパー室に装入されたワークを回転リングの回転規制面に接近または載置させることができる。この状態で昇降駆動原が下降方向に駆動すると、ワークを載せた昇降部材が下降し、ワークをホッパー室に戻すことができる。   According to a preferred embodiment, the substrate is raised and lowered along the direction in which the center line extends between the top dead center and the bottom dead center in (i) a hopper chamber that accommodates a large number of workpieces, and (ii) the hopper chamber. An elevating member that is arranged so as to move the workpiece to the rotation regulating surface of the rotating ring as it is raised, and (iii) an elevating drive source that elevates the elevating member between its top dead center and bottom dead center. When the elevating drive source is driven in the upward direction, the elevating member rises in the hopper chamber, and the work loaded in the hopper chamber can be brought close to or placed on the rotation regulating surface of the rotating ring. When the lifting drive source is driven in the downward direction in this state, the lifting member on which the workpiece is placed is lowered, and the workpiece can be returned to the hopper chamber.

好ましい形態によれば、回転リングの外周壁面の一部に当接可能な回転体が回転リングの周方向に沿って複数並設されている。この場合、使用期間が長くなったとしても、回転リングの同軸性が良好に確保される。ひいては回転リングの外周側に形成される整列溝の溝幅寸法を回転リングの周方向に安定化させるのに貢献できる。よって、ワークの軸部を進入させてワークを正姿勢にさせる精度の安定化に貢献できる。   According to a preferred embodiment, a plurality of rotating bodies that can contact a part of the outer peripheral wall surface of the rotating ring are arranged in parallel along the circumferential direction of the rotating ring. In this case, even if the period of use becomes long, the coaxiality of the rotating ring is ensured satisfactorily. As a result, it is possible to contribute to stabilizing the groove width dimension of the alignment groove formed on the outer peripheral side of the rotating ring in the circumferential direction of the rotating ring. Therefore, it is possible to contribute to the stabilization of accuracy in which the shaft portion of the work is entered to bring the work into a normal posture.

（実施形態１）
図１〜図８は実施形態１のワーク整列装置を示す。図１に示すように、ワーク整列装置で整列されるワーク１は、軸部１０と、軸部１０の一端部に設けられた頭部１１とをもつ。頭部１１の外径は軸部１０の外径よりも径大である。頭部１１は下面１２をもつ。ワーク１は軸線Ｐｗをもつ。このワーク整列装置は、ワーク１のうち頭部１１を軸部１０の上側とし、且つ、軸部１０を鉛直方向に垂下させるように、ワーク１を垂下状態の正姿勢に並設させた状態で整列させる機能をもつ。 (Embodiment 1)
1 to 8 show a workpiece alignment apparatus according to the first embodiment. As shown in FIG. 1, a workpiece 1 aligned by a workpiece alignment device has a shaft portion 10 and a head portion 11 provided at one end portion of the shaft portion 10. The outer diameter of the head portion 11 is larger than the outer diameter of the shaft portion 10. The head 11 has a lower surface 12. The workpiece 1 has an axis line Pw. In this work aligning device, the head 11 of the work 1 is located above the shaft portion 10 and the work 1 is arranged in parallel in a suspended posture so that the shaft portion 10 is suspended vertically. Has a function to align.

図１に示すように、ワーク整列装置の主要素である基体２は、縦方向（鉛直方向）に延びる中心線Ｐを有しており、中心線Ｐと交差する方向に延設され水平方向に沿って延びる底壁２０と、縦方向に延びる中心線Ｐの回りに巡らされ底壁２０の上側に形成された筒状の第１壁部２１と、中心線Ｐの回りに巡らされ第１壁部２１の上側に形成された筒状の第２壁部２２と、第１壁部２１と第２壁部２２とを取付具２７ｘで繋ぐ鍔状の固定リング２３とを有する。図１に示すように、第２壁部２２の内周側には、筒状の固定壁部２４が同軸的に取付具２７により一体的に固定されている。固定壁部２４の高さをｈｗ（図１，図３参照）として示す。固定壁部２４は平滑な筒形状の内周壁面２４ｉをもつ。図１に示すように、基体２は、ワーク１を収容するためのホッパー室３０を有する。ホッパー室３０は、第１壁部２１の内周壁面２１ｉで形成され多数のワーク１を収容する筒状の第１ホッパー室３０ｆと、第１ホッパー室３０ｆの上側に位置するように第２壁部２２の内周壁面２２ｉの上側で形成された筒状の第２ホッパー室３０ｓとを有する。第２ホッパー室３０ｓの内径Ｄ２は、第１ホッパー室３０ｆの内径Ｄ１よりも大きくされている（図１参照）。   As shown in FIG. 1, the base body 2 that is a main element of the work aligning apparatus has a center line P extending in the vertical direction (vertical direction), and extends in a direction intersecting the center line P in the horizontal direction. A bottom wall 20 extending along the center wall P, a cylindrical first wall portion 21 formed around the center line P extending in the vertical direction and formed on the upper side of the bottom wall 20, and a first wall looped around the center line P. It has the cylindrical 2nd wall part 22 formed in the upper side of the part 21, and the hook-shaped fixing ring 23 which connects the 1st wall part 21 and the 2nd wall part 22 with the fixture 27x. As shown in FIG. 1, on the inner peripheral side of the second wall portion 22, a cylindrical fixed wall portion 24 is integrally fixed by a fixture 27 coaxially. The height of the fixed wall portion 24 is shown as hw (see FIGS. 1 and 3). The fixed wall portion 24 has a smooth cylindrical inner peripheral wall surface 24i. As shown in FIG. 1, the base 2 has a hopper chamber 30 for housing the workpiece 1. The hopper chamber 30 is formed of an inner peripheral wall surface 21i of the first wall portion 21 and is a cylindrical first hopper chamber 30f that accommodates a large number of workpieces 1 and a second wall so as to be positioned above the first hopper chamber 30f. And a cylindrical second hopper chamber 30 s formed on the upper side of the inner peripheral wall surface 22 i of the portion 22. The inner diameter D2 of the second hopper chamber 30s is larger than the inner diameter D1 of the first hopper chamber 30f (see FIG. 1).

図１に示すように、回転リング４は、基体２の中心線Ｐの回りで１周するリング状をなしており、基体２の固定壁部２４の内周側に配置されており、中心線Ｐの回りで水平方向に沿って回転可能に設けられている。回転リング４は、中心線Ｐに対して互いに同軸的な内周壁面４ｉと外周壁面４ｐとを有する。回転リング４は第１壁部２１の外周側において回転可能とされている。回転リング４はリング形状をなしており、上方からの投影面積が同一外径の円板に比較して少ないため、回転リング４に載せられるワーク１の数は制限される。よって、回転リング４を回転させるための回転駆動源（後述する回転モータ９０）が過剰に大型化することが抑制される。   As shown in FIG. 1, the rotating ring 4 has a ring shape that makes one round around the center line P of the base 2, and is disposed on the inner peripheral side of the fixed wall portion 24 of the base 2. It is provided so as to be rotatable along a horizontal direction around P. The rotating ring 4 has an inner peripheral wall surface 4i and an outer peripheral wall surface 4p that are coaxial with each other with respect to the center line P. The rotating ring 4 is rotatable on the outer peripheral side of the first wall portion 21. Since the rotating ring 4 has a ring shape and the projected area from above is smaller than that of a disk having the same outer diameter, the number of workpieces 1 placed on the rotating ring 4 is limited. Therefore, an excessive increase in the size of the rotation drive source (rotation motor 90 described later) for rotating the rotation ring 4 is suppressed.

図２は本装置の平面視を示す。図２に示すように、基体２のゲート部３５からワーク排出部３６が延設されており、後述する整列溝５により垂下状態の正姿勢に整列された複数のワーク１を排出方向（矢印Ｍ１方向）滑走させることにより順次排出させるものであり、互いに対向する案内部材３７を有する。この場合、重力を利用してワーク１を排出方向に滑走させることが好ましい。案内部材３７は、ワーク１を垂下状態の正姿勢に整列させたまま、ワーク１の頭部１１を支持させつつ重力により滑走させて次工程に移動させる。図２に示すように、ワーク排出部３６はゲート部３５から基体２の接線方向に沿って延設されている。場合によっては、ワーク排出部３６はコンベヤベルト等でワーク１を搬送させることにしても良い。   FIG. 2 shows a plan view of the apparatus. As shown in FIG. 2, a workpiece discharge portion 36 is extended from the gate portion 35 of the base 2 and a plurality of workpieces 1 aligned in a normal posture in a suspended state by an alignment groove 5 to be described later are discharged in the discharge direction (arrow M1). Direction) which is sequentially discharged by sliding, and has guide members 37 facing each other. In this case, it is preferable that the workpiece 1 is slid in the discharging direction using gravity. The guide member 37 slides by gravity and moves to the next step while supporting the head 11 of the work 1 while keeping the work 1 aligned in the suspended normal posture. As shown in FIG. 2, the work discharge portion 36 extends from the gate portion 35 along the tangential direction of the base 2. In some cases, the workpiece discharge unit 36 may convey the workpiece 1 by a conveyor belt or the like.

更に、ゲート部３５のやや上流においてガスブロー部３８（図２および図７参照）が設けられている。ガスブロー部３８はガスブローを矢印Ｍ２方向に吹き出す。この結果、回転リング４の回転規制面４０に載置されているワーク１のうち、垂下状態の正姿勢でないワーク１（異状姿勢のワーク１Ｗ）を回転リング４の回転規制面４０からガスブローによってホッパー室３０に落下させることができる。よってゲート部３５において、異状姿勢のワーク１Ｗが詰まる現象が抑制される。図１に示すように、基体２の固定壁部２４は、中心線Ｐの回りにおいて回転リング４の周方向に沿ってリング状に同軸的に延設されている。図３に拡大して示すように、固定壁部２４の上端面は、リング状に延びる平坦な固定規制面２６とされている。固定規制面２６は、正姿勢のワーク１の頭部１１を接近または載置させて頭部１１の姿勢を規制させ得る平坦な面とされている。固定壁部２４のリング状の内周壁面２４ｉは、平滑されている。固定規制面２６および内周壁面２４ｉは、中心線Ｐのまわりでほぼリング状に延設されている（図２参照）。図３に示すように、回転リング４は、回転リング４の周方向（矢印Ａ１，Ａ２方向）に沿って延設されており、ワーク１の頭部１１を載置させ得るリング状をなす回転規制面４０をもつ。回転規制面４０は、ワーク１の頭部１１を接近または載置させて頭部１１の姿勢を規制させ得る。なお、回転リング４および固定壁部２４は中心線Ｐに対して互いに同軸的な配置とされている。   Further, a gas blow part 38 (see FIGS. 2 and 7) is provided slightly upstream of the gate part 35. The gas blow unit 38 blows out the gas blow in the direction of the arrow M2. As a result, out of the workpieces 1 placed on the rotation regulating surface 40 of the rotating ring 4, the workpiece 1 that is not in the suspended posture (the workpiece 1 W in an abnormal posture) is blown from the rotation regulating surface 40 of the rotating ring 4 by gas blowing. It can be dropped into the chamber 30. Therefore, in the gate part 35, the phenomenon that the workpiece 1W in the abnormal posture is clogged is suppressed. As shown in FIG. 1, the fixed wall portion 24 of the base 2 extends coaxially in a ring shape around the center line P along the circumferential direction of the rotating ring 4. As shown in FIG. 3 in an enlarged manner, the upper end surface of the fixed wall portion 24 is a flat fixed restricting surface 26 extending in a ring shape. The fixed restricting surface 26 is a flat surface that can restrict the posture of the head 11 by approaching or placing the head 11 of the workpiece 1 in the normal posture. The ring-shaped inner peripheral wall surface 24i of the fixed wall portion 24 is smooth. The fixed restricting surface 26 and the inner peripheral wall surface 24i extend substantially in a ring shape around the center line P (see FIG. 2). As shown in FIG. 3, the rotating ring 4 extends along the circumferential direction of the rotating ring 4 (arrows A <b> 1 and A <b> 2) and rotates in a ring shape on which the head 11 of the work 1 can be placed. It has a regulation surface 40. The rotation restricting surface 40 can restrict the posture of the head 11 by approaching or placing the head 11 of the work 1. The rotating ring 4 and the fixed wall portion 24 are arranged coaxially with respect to the center line P.

図２に示すように、回転リング４の外周側には、周方向に円弧状に延びる複数個の拡大溝４３が周方向（矢印Ａ１，Ａ２方向）に間隔を隔てて形成されている。拡大溝４３の周長はＬＣ（図２参照）として示される。図２に示すように、回転リング４は周長の一端側の第１係合面４４と、周長の他端側の第２係合面４５ともつ。第１係合面４４は、第２回転規制面４２のうち回転リング４の正方向（矢印Ａ１方向）の回転の上流側に形成されている。第２係合面４５は、第２回転規制面４２のうち回転リング４の正方向（矢印Ａ１方向）の回転の下流側に形成されている。   As shown in FIG. 2, a plurality of enlarged grooves 43 extending in an arc shape in the circumferential direction are formed on the outer circumferential side of the rotating ring 4 at intervals in the circumferential direction (arrow A1, A2 direction). The circumferential length of the enlarged groove 43 is indicated as LC (see FIG. 2). As shown in FIG. 2, the rotating ring 4 has a first engagement surface 44 on one end side of the circumference and a second engagement surface 45 on the other end side of the circumference. The first engagement surface 44 is formed on the upstream side of the rotation of the rotation ring 4 in the positive direction (arrow A1 direction) of the second rotation regulating surface 42. The second engagement surface 45 is formed on the downstream side of the rotation of the rotation ring 4 in the positive direction (arrow A1 direction) of the second rotation restriction surface 42.

拡大溝４３を拡大した平面視は図４に示されている。図４に示すように平面視において、拡大溝４３自体は回転リング４の外周側および上方が開放されており、径方向において溝幅Ｗ２をもつ。第１係合面４４は、鉛直方向に沿っており、第１回転規制面４１に対して例えば８０〜１００°でほぼ垂直状に形成されている。   A plan view in which the enlarged groove 43 is enlarged is shown in FIG. As shown in FIG. 4, in a plan view, the enlarged groove 43 itself is open on the outer peripheral side and upper side of the rotating ring 4, and has a groove width W2 in the radial direction. The first engagement surface 44 extends along the vertical direction, and is formed substantially perpendicular to the first rotation restriction surface 41 at, for example, 80 to 100 degrees.

ところで、ワーク１の頭部１１が第２回転規制面４２に接近または載置された状態で軸部１０が垂下状態となるように整列溝５に進入した状態で、ワーク１が正姿勢に整列溝５内に整列されている場合には、回転リング４が正方向（矢印Ａ１方向）に回転するとき、回転リング４の第１係合面４４は、第２回転規制面４２に頭部１１が載置されたワーク１のうち頭部１１に接触する。この結果、第１係合面４４は押圧力ＦＡ（図４および図５参照）で頭部１１を前進方向（矢印Ａ１方向）に押圧させ、ワーク排出部３６に向けて正方向（矢印Ａ１方向）に前進させることができる。ここで、図４および図５から理解できるように、第１係合面４４はほぼ鉛直方向に沿って形成されているため、ワーク１の頭部１１を前進方向（矢印Ａ１方向）に効果的に押圧できる。   By the way, with the head 11 of the work 1 approaching or placed on the second rotation restricting surface 42, the work 1 is aligned in the normal posture with the shaft portion 10 entering the alignment groove 5 so as to be suspended. When aligned in the groove 5, when the rotating ring 4 rotates in the forward direction (arrow A <b> 1 direction), the first engagement surface 44 of the rotating ring 4 contacts the second rotation regulating surface 42 with the head 11. Contacts the head 11 of the work 1 on which is placed. As a result, the first engagement surface 44 presses the head 11 in the forward direction (arrow A1 direction) with the pressing force FA (see FIGS. 4 and 5), and forwards toward the work discharge unit 36 (arrow A1 direction). ). Here, as can be understood from FIGS. 4 and 5, since the first engagement surface 44 is formed substantially along the vertical direction, the head 11 of the work 1 is effectively moved in the forward direction (arrow A1 direction). Can be pressed.

図３および図６に示すように、回転リング４の回転規制面４０は、回転リング４の上面となるように周方向に沿って延設された平坦な第１回転規制面４１と、第１回転規制面４１よりもΔｈぶん下方に位置しかつ回転リング４の周方向に沿って延設された平坦な第２回転規制面４２とを有する。第１回転規制面４１は、垂下状態とされたワーク１の頭部１１を接近または載置させて頭部１１の姿勢を規制させ得る。第２回転規制面４２の高さは、固定規制面２６の高さとほぼ同一とされている。従って、第２回転規制面４２および固定規制面２６は、軸部１０が垂下状態とされ正姿勢とされたワーク１の頭部１１の下面１２を接近または載置させ得、従って、ワーク１の姿勢を良好にできる機能をもつ。図４から理解できるように、第２回転規制面４２は、拡大溝４３の溝底面を形成しており、第１回転規制面４１よりもΔｈぶん下方に位置している。図４の平面視では、第２回転規制面４２は、回転リング４の外周壁面４ｐに沿って、正回転方向（矢印Ａ１方向）の上流側の一端４２ｅ（第１係合面４４）から、正回転方向（矢印Ａ１方向）の下流側の他端４２ｆ（第２係合面４５）に向けて円弧状に延びている。   As shown in FIGS. 3 and 6, the rotation restricting surface 40 of the rotating ring 4 includes a flat first rotation restricting surface 41 extending along the circumferential direction so as to be the upper surface of the rotating ring 4, and the first It has a flat second rotation restricting surface 42 that is located at a position lower than the rotation restricting surface 41 by Δh and extends along the circumferential direction of the rotating ring 4. The first rotation restricting surface 41 can restrict the posture of the head 11 by approaching or placing the head 11 of the workpiece 1 in the suspended state. The height of the second rotation restricting surface 42 is substantially the same as the height of the fixed restricting surface 26. Therefore, the second rotation restricting surface 42 and the fixed restricting surface 26 can approach or place the lower surface 12 of the head 11 of the workpiece 1 in which the shaft portion 10 is in a suspended state and is in a normal posture. Has a function to improve the posture. As can be understood from FIG. 4, the second rotation restricting surface 42 forms the groove bottom surface of the enlarged groove 43, and is positioned lower than the first rotation restricting surface 41 by Δh. In the plan view of FIG. 4, the second rotation regulating surface 42 extends from the upstream end 42 e (first engagement surface 44) in the positive rotation direction (arrow A <b> 1 direction) along the outer peripheral wall surface 4 p of the rotation ring 4. It extends in a circular arc shape toward the other end 42f (second engagement surface 45) on the downstream side in the forward rotation direction (arrow A1 direction).

本実施形態によれば、図３は、基体２の中心線Ｐに沿って切断した要部の拡大断面を示す。図３に示すように、回転リング４は、第２回転規制面４２および固定規制面２６よりも寸法ｈｃ（図３参照）ぶん下方に位置する鍔リング状の接触係合部４６を有する。図３に示すように、ワーク１の軸部１０が垂下状態で整列溝５に進入すると、軸部１０の先端部１０ｅ（下端部）は、接触係合部４６の鍔状の接触係合面４７に接触して係合するように、接触係合部４６は設定されている。従って、接触係合部４６の接触係合面４７と軸部１０の先端部１０ｅ（下端部）との間の摩擦係合力ＦＡが期待できる。このため、回転リング４が正方向（矢印Ａ１方向）に回転するとき、ワーク１が回転リング４と共に同方向（矢印Ａ１方向）移動する移動力を摩擦係合力ＦＡにより補助することができる。従って本実施形態によれば、ワーク１を前進させる移動力は、基本的には、ワーク１の頭部１１を直接押圧させる第１係合面４４と、摩擦係合力ＦＡを発揮させるワーク１の軸部１０の先端部１０ｅに係合する接触係合部４６の接触係合面４７とで実現される。ワーク１は工業製品であるため、ワーク１の軸部１０の長さは公差内でばらつくおそれがある。本実施形態によれば、このように軸部１０の長さがばらつくときであっても、頭部１１の下面１２が回転リング４の第２回転規制面４２に接触するよりも、軸部１０の先端部１０ｅ（下端部）は優先的に接触係合部４６の接触係合面４７に接触して係合するように、接触係合部４６および第２回転規制面４２の寸法関係が設定されている。このため、ワーク１の頭部１１を押圧させる第１係合面４４と、接触係合部４６の接触係合面４７とで、複数のワーク１を効果的に前進させることができる。つまり、頭部１１側の押圧力ＰＡと、軸部１０の先端部１０ｅ側の摩擦係合力ＦＡとにより、ワーク１を前進できる。   According to the present embodiment, FIG. 3 shows an enlarged cross section of the main part cut along the center line P of the base 2. As shown in FIG. 3, the rotating ring 4 has a hook-ring-shaped contact engaging portion 46 that is located below the second rotation restricting surface 42 and the fixed restricting surface 26 by a dimension hc (see FIG. 3). As shown in FIG. 3, when the shaft portion 10 of the workpiece 1 enters the alignment groove 5 in a suspended state, the distal end portion 10 e (lower end portion) of the shaft portion 10 is a hook-shaped contact engagement surface of the contact engagement portion 46. The contact engaging portion 46 is set so as to contact and engage with 47. Therefore, a frictional engagement force FA between the contact engagement surface 47 of the contact engagement portion 46 and the tip end portion 10e (lower end portion) of the shaft portion 10 can be expected. Therefore, when the rotating ring 4 rotates in the forward direction (arrow A1 direction), the moving force that moves the workpiece 1 together with the rotating ring 4 in the same direction (arrow A1 direction) can be assisted by the friction engagement force FA. Therefore, according to the present embodiment, the movement force for moving the workpiece 1 forward is basically the first engagement surface 44 that directly presses the head 11 of the workpiece 1 and the workpiece 1 that exerts the friction engagement force FA. This is realized by the contact engaging surface 47 of the contact engaging portion 46 that engages with the distal end portion 10e of the shaft portion 10. Since the workpiece 1 is an industrial product, the length of the shaft portion 10 of the workpiece 1 may vary within a tolerance. According to the present embodiment, even when the length of the shaft portion 10 varies as described above, the shaft portion 10 is less than the case where the lower surface 12 of the head portion 11 contacts the second rotation restricting surface 42 of the rotating ring 4. The dimensional relationship between the contact engagement portion 46 and the second rotation restricting surface 42 is set so that the front end portion 10e (lower end portion) of the contact engagement portion 46 is preferentially brought into contact with and engaged with the contact engagement surface 47 of the contact engagement portion 46. Has been. For this reason, the plurality of workpieces 1 can be effectively advanced by the first engagement surface 44 that presses the head 11 of the workpiece 1 and the contact engagement surface 47 of the contact engagement portion 46. That is, the workpiece 1 can be advanced by the pressing force PA on the head portion 11 side and the frictional engagement force FA on the tip portion 10e side of the shaft portion 10.

なお、一般的には、軸部１０の先端部１０ｅ（下端部）は優先的に接触係合部４６の接触係合面４７に接触して係合するとき、頭部１１の下面１２と第２回転規制面４２（固定規制面２６）との間には微小隙間Δｍ（図３，図５，図６参照）が形成される。回転リング４の第２回転規制面４２と固定壁部２４の固定規制面２６は、微小隙間Δｍを形成するものの、ワーク１の頭部１１の下面１２に対面し、更には、ワーク１が過剰に傾くと下面１２に接触可能であるため、ワーク１の正姿勢状態を良好に維持できる作用をもつといえる。但し、ワーク１の公差精度によっては、軸部１０の先端部１０ｅ（下端部）が接触係合部４６の接触係合面４７に接触して係合するとともに、頭部１１の下面１２と第２回転規制面４２（固定規制面２６）に接触することもある。この場合においても、ワーク１の正姿勢状態は良好に維持される。   In general, when the tip portion 10e (lower end portion) of the shaft portion 10 preferentially contacts and engages with the contact engagement surface 47 of the contact engagement portion 46, the lower end 12 and the lower surface 12 of the head portion 11 are aligned. A minute gap Δm (see FIGS. 3, 5, and 6) is formed between the two rotation restricting surface 42 (fixed restricting surface 26). The second rotation restricting surface 42 of the rotating ring 4 and the fixing restricting surface 26 of the fixed wall portion 24 form a minute gap Δm, but face the lower surface 12 of the head 11 of the workpiece 1, and the workpiece 1 is excessive. It can be said that since it can contact the lower surface 12 when it is inclined, it can maintain the normal posture state of the work 1 satisfactorily. However, depending on the tolerance accuracy of the workpiece 1, the tip portion 10 e (lower end portion) of the shaft portion 10 comes into contact with and engages with the contact engagement surface 47 of the contact engagement portion 46, while The two-rotation restricting surface 42 (fixed restricting surface 26) may be contacted. Even in this case, the normal posture state of the workpiece 1 is maintained well.

図１および図２に示すように、回転リング４の外周壁面４ｐと基体２の固定壁部２４の内周壁面２４ｉとでリング状をなす整列溝５を区画している。整列溝５は、ワーク１の軸部１０を鉛直方向に垂下させつつ正姿勢で整列させるための溝である。正姿勢では、頭部１１が上側となり、下側の軸部１０が垂直方向に沿う。図２に示すように、整列溝５は、回転リング４の周方向（Ａ１，Ａ２方向に沿って）に沿って中心線Ｐの回りをほぼ１周するようにリング状に延設されており、上方が開放されている。   As shown in FIGS. 1 and 2, the outer circumferential wall surface 4 p of the rotating ring 4 and the inner circumferential wall surface 24 i of the fixed wall portion 24 of the base 2 define a ring-shaped alignment groove 5. The alignment groove 5 is a groove for aligning the shaft portion 10 of the workpiece 1 in a normal posture while hanging down in the vertical direction. In the normal posture, the head portion 11 is on the upper side, and the lower shaft portion 10 is along the vertical direction. As shown in FIG. 2, the alignment groove 5 extends in a ring shape so as to make one round around the center line P along the circumferential direction of the rotating ring 4 (along the directions A1 and A2). The upper part is open.

図４に示すように、リング状の整列溝５自体は、回転リング４の径方向（基体２の径方向である矢印Ｄ１方向に相当）において、溝幅Ｗ１をもつ。溝幅Ｗ１は、ワーク１の頭部１１の最大外径Ｅ２よりも小さく、且つ、軸部１０の最大外径Ｅ１よりも大きい。このため、回転リング４が回転するとき、整列溝５はワーク１の頭部１１を進入させないものの、ワーク１の軸部１０を落下させて進入させ得る。従って、ワーク１の頭部１１の下面１２は、回転リング４のうち第１回転規制面４１よりもΔｈぶん下方に位置する第２回転規制面４２と固定壁部２４の固定規制面２６とに接近または接触可能となる。   As shown in FIG. 4, the ring-shaped alignment groove 5 itself has a groove width W <b> 1 in the radial direction of the rotating ring 4 (corresponding to the arrow D <b> 1 direction that is the radial direction of the base 2). The groove width W <b> 1 is smaller than the maximum outer diameter E <b> 2 of the head portion 11 of the workpiece 1 and larger than the maximum outer diameter E <b> 1 of the shaft portion 10. For this reason, when the rotating ring 4 rotates, the alignment groove 5 does not allow the head portion 11 of the work 1 to enter, but can cause the shaft portion 10 of the work 1 to fall and enter. Therefore, the lower surface 12 of the head 11 of the workpiece 1 is formed on the second rotation restricting surface 42 that is located Δh below the first rotation restricting surface 41 in the rotating ring 4 and the fixed restricting surface 26 of the fixed wall portion 24. Can approach or touch.

図４から理解できるように、回転リング４の外周側に拡大溝４３が形成されている領域ＭＡによれば、拡大溝４３の内周面４３ｉと固定壁部２４の内周壁面２４ｉとの間の溝幅Ｗ３は、回転リング４の径方向において拡大溝４３の溝幅Ｗ２ぶん増加し、ワーク１の頭部１１の最大外径Ｅ２よりも大きい。従って、拡大溝４３の溝底面である第２回転規制面４２に頭部１１の下面１２を接近または載置できる（図４参照）。   As can be understood from FIG. 4, according to the region MA in which the enlarged groove 43 is formed on the outer peripheral side of the rotating ring 4, the gap between the inner peripheral surface 43 i of the enlarged groove 43 and the inner peripheral wall surface 24 i of the fixed wall portion 24. The groove width W3 increases by the groove width W2 of the enlarged groove 43 in the radial direction of the rotating ring 4, and is larger than the maximum outer diameter E2 of the head 11 of the workpiece 1. Therefore, the lower surface 12 of the head 11 can be approached or placed on the second rotation restricting surface 42 that is the groove bottom surface of the enlarged groove 43 (see FIG. 4).

これに対して回転リング４の外周側に拡大溝４３が形成されていない領域ＭＢによれば、図４に示すように、ワーク１の軸部１０は整列溝５に落下して進入できるものの、ワーク１の頭部１１は整列溝５および拡大溝４３内に進入できない。更に、ワーク１の頭部１１は、回転リング４のうち第２回転規制面４２よりもΔｈぶん上方の第１回転規制面４１に接触状態に載置される。この場合、第１回転規制面４１とワーク１の頭部１１との摩擦が期待される。第１回転規制面４１とワーク１の頭部１１との摩擦面積および摩擦力が期待できない場合には、回転リング４が回転するとき、第１回転規制面４１上の頭部１１は第１回転規制面４１に対して相対滑走する可能性が高い。この場合、回転リング４が回転するものの、ワーク１は回転リング４の回転方向にあまり移動できない。   On the other hand, according to the region MB in which the enlarged groove 43 is not formed on the outer peripheral side of the rotating ring 4, as shown in FIG. 4, the shaft portion 10 of the work 1 can fall into the alignment groove 5 and enter. The head 11 of the work 1 cannot enter the alignment groove 5 and the enlarged groove 43. Further, the head 11 of the workpiece 1 is placed in contact with the first rotation restriction surface 41 of the rotation ring 4 that is Δh above the second rotation restriction surface 42. In this case, friction between the first rotation regulating surface 41 and the head 11 of the workpiece 1 is expected. When the friction area and the frictional force between the first rotation restricting surface 41 and the head 11 of the work 1 cannot be expected, when the rotating ring 4 rotates, the head 11 on the first rotation restricting surface 41 rotates the first. The possibility of sliding relative to the regulation surface 41 is high. In this case, although the rotating ring 4 rotates, the work 1 cannot move so much in the rotating direction of the rotating ring 4.

本実施形態によれば、図５（Ａ）に示すように、回転リング４に形成されている第２係合面４５は、下側の第２回転規制面４２から上側の第１回転規制面４１に向かうにつれて昇り坂となる傾斜面で形成されている。使用時において回転リング４の正回転などにおいて過剰負荷が作用するときには、これを検知した制御装置２００により回転リング４が中心線Ｐの回りで逆方向（矢印Ａ２方向）に回転されることがある。このように回転リング４が逆方向（矢印Ａ２方向）に回転されるとき、拡大溝４３の溝底面である第２回転規制面４２に頭部１１が載置された正姿勢のワーク１については、図５（Ｂ）に示すように、第２回転規制面４２に載置されていた頭部１１を第２係合面４５により上方（図５に示す矢印Ｙ４方向）に持ち上げ、第２回転規制面４２から第１回転規制面４１に移し替えることができる。このときワーク１の軸部１０の先端部１０ｅは接触係合面４６からΔｈｋ（図５参照）ぶん浮上し、非接触となる。   According to the present embodiment, as shown in FIG. 5 (A), the second engagement surface 45 formed on the rotating ring 4 is formed from the lower second rotation restricting surface 42 to the upper first rotation restricting surface. It is formed with the inclined surface which becomes an ascending slope toward 41. When an excessive load is applied during normal rotation of the rotating ring 4 during use, the rotating device 4 may be rotated around the center line P in the reverse direction (arrow A2 direction) by the control device 200 that detects this. . Thus, when the rotating ring 4 is rotated in the reverse direction (arrow A2 direction), the workpiece 1 in the normal posture in which the head 11 is placed on the second rotation restricting surface 42 that is the groove bottom surface of the enlarged groove 43 is as follows. As shown in FIG. 5B, the head portion 11 placed on the second rotation restricting surface 42 is lifted upward (in the direction of arrow Y4 shown in FIG. 5) by the second engagement surface 45, and the second rotation. The restriction surface 42 can be transferred to the first rotation restriction surface 41. At this time, the tip end portion 10e of the shaft portion 10 of the workpiece 1 is lifted by Δhk (see FIG. 5) from the contact engagement surface 46 and is not in contact.

このように回転リング４が逆方向（矢印Ａ２方向）に回転されるとき、第１係合面４４による押圧力はワーク１の頭部１１に作用しない。このため、ワーク１の頭部１１の下面１２と回転リング４の第１回転規制面４１とを相対滑走させることが期待できる。従って、回転モータが逆回転（矢印Ａ２方向）して回転リング４が逆方向（矢印Ａ２方向）に回転されるときであっても、ワーク１の頭部１１を矢印Ａ２方向に過剰に後退させることが抑制される。   Thus, when the rotating ring 4 is rotated in the reverse direction (arrow A2 direction), the pressing force by the first engagement surface 44 does not act on the head 11 of the workpiece 1. For this reason, it can be expected that the lower surface 12 of the head 11 of the work 1 and the first rotation restricting surface 41 of the rotating ring 4 slide relative to each other. Therefore, even when the rotary motor rotates in the reverse direction (arrow A2 direction) and the rotary ring 4 rotates in the reverse direction (arrow A2 direction), the head 11 of the workpiece 1 is excessively moved back in the arrow A2 direction. It is suppressed.

本実施形態によれば、図６に示すように、回転リング４の第１回転規制面４１，第１壁部２１の上端面２１ｕ，固定壁部２４の上端面である固定載置面２６は、基本的には同一高さとされている。この場合、ワーク１の異常な引っかかりが抑えられる。   According to the present embodiment, as shown in FIG. 6, the fixed placement surface 26 that is the first rotation regulating surface 41 of the rotating ring 4, the upper end surface 21 u of the first wall portion 21, and the upper end surface of the fixed wall portion 24 is Basically, it is the same height. In this case, abnormal catching of the workpiece 1 can be suppressed.

図６に示すように、回転リング４の外周壁面４ｐは、内周側に縮径されて退避された縮径壁面４８を有する。従って、リング状の逃がし空間４９が形成されている。逃がし空間４９は、固定壁部２４の内周壁面２４ｉからの溝幅寸法ＥＡ（図６参照）を増加させている。このため、整列溝５で正姿勢で整列されたワーク１の軸部１０が回転リング４の外周壁面４ｐに接触する頻度を低下させることができる。よって回転リング４および／またはワーク１の損傷を抑える。なお、逃がし空間４９は中心線Ｐの回りを１周するようにリング状をなす。ワーク１の損傷を抑えるためには、回転リング４の外周壁面４ｐ、固定壁部２４を軟質の材料（例えば、樹脂等の高分子材料、硬度が比較的低めの金属材料）で形成することができる。但しこれに限定されるものではない。   As shown in FIG. 6, the outer peripheral wall surface 4p of the rotating ring 4 has a reduced diameter wall surface 48 that is reduced in diameter and retracted toward the inner peripheral side. Accordingly, a ring-shaped escape space 49 is formed. The escape space 49 increases the groove width dimension EA (see FIG. 6) from the inner peripheral wall surface 24 i of the fixed wall portion 24. For this reason, it is possible to reduce the frequency with which the shaft portion 10 of the workpiece 1 aligned in the normal posture in the alignment groove 5 contacts the outer peripheral wall surface 4p of the rotating ring 4. Therefore, damage to the rotating ring 4 and / or the work 1 is suppressed. The escape space 49 has a ring shape so as to make one round around the center line P. In order to suppress damage to the workpiece 1, the outer peripheral wall surface 4p and the fixed wall portion 24 of the rotating ring 4 may be formed of a soft material (for example, a polymer material such as a resin or a metal material having a relatively low hardness). it can. However, it is not limited to this.

本実施形態によれば、図１に示すように、基体２は、多数のワーク１を収容させるホッパー室３０と、ホッパー室３０の底面を形成する昇降部材６０と、昇降部材６０を昇降させる昇降シリンダ６２（昇降駆動源）とを有する。昇降部材６０は、ホッパー室３０において上死点と下死点との間において、中心線Ｐが延びる方向に沿って上昇（矢印Ｙ１方向）および下降（矢印Ｙ２方向）可能に配置されている。図８は昇降部材６０が矢印Ｙ１方向に上昇した状態を示す。このように昇降部材６０が上昇すると、昇降部材６０のワーク保持面６１に載せられている複数のワーク１を回転リング４の第１回転規制面４１または第２回転規制面４２に移動させることができる。   According to the present embodiment, as shown in FIG. 1, the base body 2 includes a hopper chamber 30 that houses a large number of workpieces 1, a lifting member 60 that forms the bottom surface of the hopper chamber 30, and a lifting member that lifts and lowers the lifting member 60. And a cylinder 62 (elevating drive source). The elevating member 60 is disposed in the hopper chamber 30 so as to be able to rise (arrow Y1 direction) and descend (arrow Y2 direction) along the direction in which the center line P extends between the top dead center and the bottom dead center. FIG. 8 shows a state in which the elevating member 60 is raised in the arrow Y1 direction. When the elevating member 60 is lifted in this way, the plurality of workpieces 1 placed on the work holding surface 61 of the elevating member 60 can be moved to the first rotation regulating surface 41 or the second rotation regulating surface 42 of the rotating ring 4. it can.

図８に示すように、昇降部材６０のワーク保持面６１は、基体２の径外方向（矢印ＤＥ方向）に向かうにつれて下降傾斜するように形成されている。このため、昇降部材６０のワーク保持面６１に載せられたワーク１の数が少ないときであっても、ワーク保持面６１に載せられているワーク１を回転リング４の第１回転規制面４１、第２回転規制面４２および整列溝５側に向けて移動させ易いため、ワーク１の軸部１０を整列溝５に進入させ易いという利点が得られる。昇降シリンダ６２は、昇降部材６０をこれの上死点と下死点との間において昇降させる空気圧または油圧などの流体圧シリンダ装置で形成されており、本体部６２０と、本体部６２０に対して伸縮可能なロッド部６２２とを有する。昇降部材６０はロッド部６２２の先端部６２３に連結されている。場合によっては、昇降シリンダ６２に代えて昇降モータを採用しても良い。   As shown in FIG. 8, the work holding surface 61 of the elevating member 60 is formed so as to be inclined downward as it goes in the radially outward direction (the arrow DE direction) of the base 2. For this reason, even when the number of the workpieces 1 placed on the workpiece holding surface 61 of the elevating member 60 is small, the workpiece 1 placed on the workpiece holding surface 61 is moved to the first rotation regulating surface 41 of the rotating ring 4, Since it is easy to move toward the 2nd rotation control surface 42 and the alignment groove 5 side, the advantage that the axial part 10 of the workpiece | work 1 is easy to enter the alignment groove 5 is acquired. The elevating cylinder 62 is formed of a fluid pressure cylinder device such as air pressure or hydraulic pressure that elevates and lowers the elevating member 60 between the top dead center and the bottom dead center, and with respect to the main body 620 and the main body 620. And an extendable rod portion 622. The elevating member 60 is connected to the distal end portion 623 of the rod portion 622. In some cases, a lifting motor may be employed instead of the lifting cylinder 62.

整列溝５に進入して軸部１０が垂下状態とされて整列されたワーク１によれば（図４および図５参照）、頭部１１は軸部１０の上側となり、軸部１０は鉛直方向に沿って下方に向かって垂下する。これがワーク１の正姿勢である。このように複数のワーク１は、頭部１１を軸部１０の上側にしつつ整列溝５に垂下状態で１列に並設された状態で整列される。この状態で、回転リング４が中心線Ｐの回りで正方向（矢印Ａ１方向）に回転すると、複数のワーク１は軸部１０が整列溝５に垂下状態で進入した正姿勢のまま（図７参照）、ワーク排出部３６に向けて正方向（矢印Ａ１方向）に向けて回転され、ゲート部３５を通過してワーク排出部３６から基体２の外部に向けて矢印Ｍ１方向（図７参照）に排出される。異状姿勢（軸部１０が整列溝５に進入されていない姿勢、軸部１０が回転リング４の回転載置面４０に載置されている姿勢）のワーク１Ｗが回転リング４の回転載置面４０に載置されていることもある。この場合には、ガスブロー部３８から矢印Ｍ２方向に吹き出されるガスブローによって、正姿勢はでない異状姿勢のワーク１Ｗはホッパー室３０に落下される。このためゲート部３５におけるワーク１の詰まりが抑制される。なす図７では、ストッパ３００の図示は省略されている。   According to the workpiece 1 that has entered the alignment groove 5 and the shaft portion 10 is suspended and aligned (see FIGS. 4 and 5), the head portion 11 is located above the shaft portion 10, and the shaft portion 10 is in the vertical direction. It hangs down along the line. This is the normal posture of the work 1. In this way, the plurality of workpieces 1 are aligned in a state where they are arranged in a line in a suspended state in the alignment groove 5 with the head portion 11 positioned above the shaft portion 10. In this state, when the rotating ring 4 rotates in the positive direction (arrow A1 direction) around the center line P, the plurality of workpieces 1 remain in the normal posture in which the shaft portion 10 enters the alignment groove 5 in a suspended state (FIG. 7). Reference), rotated in the forward direction (arrow A1 direction) toward the workpiece discharge portion 36, passes through the gate portion 35, and extends from the workpiece discharge portion 36 to the outside of the base 2 in the direction of arrow M1 (see FIG. 7). To be discharged. The workpiece 1W having an abnormal posture (a posture in which the shaft portion 10 is not inserted into the alignment groove 5 and a posture in which the shaft portion 10 is placed on the rotating mounting surface 40 of the rotating ring 4) is the rotating mounting surface of the rotating ring 4. 40 may be placed. In this case, the workpiece 1W having an abnormal posture that is not the normal posture is dropped into the hopper chamber 30 by the gas blow blown out from the gas blow portion 38 in the direction of the arrow M2. For this reason, clogging of the work 1 in the gate portion 35 is suppressed. In FIG. 7, the illustration of the stopper 300 is omitted.

本実施形態によれば、図１に示すように、基体２の第２壁部２２の上部には、第２ホッパー室３０ｓからのワーク１の脱落を抑えるためのワークセンサ７が設けられている。ワークセンサ７は、光等の電磁波７０を第２壁部２２の貫通孔を介して発信させる発信部７１と、発信部７１から発信された電磁波７０を第２壁部２２の貫通孔を介して受信する受信部７２とを有する。昇降部材６０の上昇によって持ち上げられたワーク１により光や電波等の電磁波７０が遮断されると、その信号は制御装置２００に入力され、制御装置２００は昇降シリンダ６２の駆動量を制限する。このため昇降部材６０の過剰上昇が防止され、昇降部材６０の過剰上昇に起因して、ワーク１が第２壁部２２の上端から過剰に持ち上げられることが抑制され、ひいてはホッパー室３０の外方に脱落することが抑制される。   According to the present embodiment, as shown in FIG. 1, a work sensor 7 is provided on the upper portion of the second wall portion 22 of the base 2 to prevent the work 1 from dropping off from the second hopper chamber 30 s. . The work sensor 7 includes a transmitter 71 that transmits an electromagnetic wave 70 such as light through the through-hole of the second wall 22, and an electromagnetic wave 70 transmitted from the transmitter 71 through the through-hole of the second wall 22. And a receiving unit 72 for receiving. When the electromagnetic wave 70 such as light or radio wave is interrupted by the workpiece 1 lifted by the raising / lowering member 60, the signal is input to the control device 200, and the control device 200 limits the driving amount of the lifting cylinder 62. For this reason, the excessive raising of the raising / lowering member 60 is prevented, and it is suppressed that the workpiece | work 1 is lifted excessively from the upper end of the 2nd wall part 22 resulting from the excessive raising of the raising / lowering member 60, by extension, the outer side of the hopper chamber 30 Is prevented from falling off.

すなわち、ホッパー室３０に収容されているワーク１の数が増加しているとき、第１ホッパー室３０ｆ内のワーク１の集団の高さが高くなる。昇降シリンダ６２が上昇作動してワーク１の集団が電磁波７０に触れると、制御装置２００は、昇降シリンダ６２の上昇を停止させるため、昇降シリンダ６２の高さ方向の駆動量が制限される。このように昇降部材６０の矢印Ｙ１方向への上昇量が減少するため、ワーク１が第２壁部２２の上端から第２ホッパー室３０ｓの外方に脱落することが抑制される。これに対して、ホッパー室３０に収容されているワーク１の数が減少してワーク１の集団の高さが低くなったとしても、ワーク１が電磁波７０に当たるまで制御装置２００は昇降シリンダ６２を上昇作動させるため、昇降シリンダ６２の上昇駆動量が増加し、昇降部材６０の上昇量が増加する。このためワーク１の数が減少した場合であっても、ワーク１を回転リング４の外周側の整列溝５に進入させることができる。このように昇降部材６０に載せられているワーク１の数に応じて、昇降部材６０の上死点の高さは変更され、昇降部材６０に載せられているワーク１の数が減少すると、昇降部材６０の上死点の高さは高くなる。   That is, when the number of workpieces 1 accommodated in the hopper chamber 30 is increasing, the height of the group of workpieces 1 in the first hopper chamber 30f is increased. When the elevating cylinder 62 is raised and the group of workpieces 1 touches the electromagnetic wave 70, the control device 200 stops the elevating cylinder 62 from being raised, so that the driving amount of the elevating cylinder 62 in the height direction is limited. Thus, since the raising amount of the elevating member 60 in the arrow Y1 direction is reduced, the workpiece 1 is prevented from dropping from the upper end of the second wall portion 22 to the outside of the second hopper chamber 30s. On the other hand, even if the number of the workpieces 1 accommodated in the hopper chamber 30 is reduced and the height of the group of the workpieces 1 is lowered, the control device 200 moves the lifting cylinder 62 until the workpieces 1 hit the electromagnetic wave 70. In order to perform the raising operation, the raising drive amount of the raising / lowering cylinder 62 is increased, and the raising amount of the raising / lowering member 60 is increased. For this reason, even if the number of workpieces 1 is reduced, the workpieces 1 can enter the alignment grooves 5 on the outer peripheral side of the rotating ring 4. As described above, when the height of the top dead center of the lifting member 60 is changed according to the number of the workpieces 1 placed on the lifting member 60 and the number of the workpieces 1 placed on the lifting member 60 is decreased, the lifting and lowering member 60 is lifted and lowered. The height of the top dead center of the member 60 is increased.

しかして、本装置の使用方法の代表例について説明を加える。まず、昇降シリンダ６２のロッド部６２２を収縮させることにより、昇降部材６０を下始点に配置して初期位置とし、ホッパー室３０の収容容積を増加させる。このようにホッパー室３０の収容容積を増加させた状態で、手作業または自動機器で、多数のワーク１を第１ホッパー室３０ｆに装入して収容させる。この結果、ワーク１は第１ホッパー室３０ｆで下死点付近に待機している昇降部材６０のワーク保持面６１に載せられる。この状態では、多数のワーク１は、第１ホッパー室３０ｆのみに存在し、第２ホッパー室３０ｓには存在しないことが好ましい。初期位置では、第２ホッパー室３０ｓにワーク１が収容されていない方が好ましい。その理由としては、第２ホッパー室３０ｓにワーク１が収容される程にワーク１の数が多い場合には、昇降シリンダ６２が上昇作動して昇降部材６０が矢印Ｙ１方向に上昇すると、ワーク１が上昇し過ぎて基体２の外方に溢れるためである。なお、第１ホッパー室３０ｆにおいては、多数のワーク１はアトランダムに多方向に指向している。   Therefore, a representative example of how to use this apparatus will be described. First, the rod portion 622 of the lifting cylinder 62 is contracted to place the lifting member 60 at the lower starting point to be the initial position, and the accommodation capacity of the hopper chamber 30 is increased. In the state where the accommodation volume of the hopper chamber 30 is increased in this way, a large number of workpieces 1 are loaded and accommodated in the first hopper chamber 30f by manual operation or automatic equipment. As a result, the workpiece 1 is placed on the workpiece holding surface 61 of the elevating member 60 waiting in the vicinity of the bottom dead center in the first hopper chamber 30f. In this state, it is preferable that the multiple workpieces 1 exist only in the first hopper chamber 30f and do not exist in the second hopper chamber 30s. In the initial position, it is preferable that the workpiece 1 is not accommodated in the second hopper chamber 30s. The reason is that when the number of workpieces 1 is large enough to accommodate the workpieces 1 in the second hopper chamber 30s, the lifting cylinder 62 is lifted and the lifting member 60 is lifted in the direction of the arrow Y1. This is because the temperature rises too much and overflows outside the substrate 2. In the first hopper chamber 30f, a large number of works 1 are oriented at random in multiple directions.

次に、制御装置２００は、昇降シリンダ６２を駆動させて昇降部材６０を第１ホッパー室３０ｆ内において矢印Ｙ１方向に上昇させ、ワーク１を第１ホッパー室３０ｆ内において昇降部材６０のワーク保持面６１で第２ホッパー室３０ｓ側に持ち上げる。持ち上げられたワーク１のうち上端のワーク１が電磁波７０に触れると、制御装置２００は昇降シリンダ６２の上昇を停止させ、速やかに下死点に向けて下降させる。   Next, the control device 200 drives the elevating cylinder 62 to raise the elevating member 60 in the direction of the arrow Y1 in the first hopper chamber 30f, and the work 1 holds the work holding surface of the elevating member 60 in the first hopper chamber 30f. 61 lifts to the second hopper chamber 30s side. When the workpiece 1 at the upper end of the lifted workpiece 1 touches the electromagnetic wave 70, the control device 200 stops the lifting cylinder 62 from rising and quickly lowers it toward the bottom dead center.

ここで、ワーク１が第１ホッパー室３０ｆから昇降部材６０のワーク保持面６１で第２ホッパー室３０ｓ側に持ち上げられるとき、昇降部材６０のワーク保持面６１に載せられている外周側のワーク１は、径外方（図８に示すＤＰ方向）に溢れて移動し、ひいては、昇降部材６０の外周側に配置されている回転リング４の回転規制面４０に載せられる。この結果、回転リング４が停止しているとき、あるいは、回転リング４の回転に伴い、ワーク１の軸部１０が整列溝５に進入すると共に頭部１１が第２回転規制面４２に設置されるように、ワーク１が垂下状態の正姿勢で整列溝５内で整列される。   Here, when the workpiece 1 is lifted from the first hopper chamber 30 f to the second hopper chamber 30 s by the workpiece holding surface 61 of the lifting member 60, the outer peripheral workpiece 1 placed on the workpiece holding surface 61 of the lifting member 60. Moves over the outside in the radial direction (DP direction shown in FIG. 8), and as a result, is placed on the rotation regulating surface 40 of the rotating ring 4 arranged on the outer peripheral side of the elevating member 60. As a result, when the rotating ring 4 is stopped or with the rotation of the rotating ring 4, the shaft portion 10 of the work 1 enters the alignment groove 5 and the head portion 11 is installed on the second rotation regulating surface 42. As described above, the workpieces 1 are aligned in the alignment grooves 5 in the suspended posture.

次に、昇降シリンダ６２が前述したように下死点に向けて下降作動すると、昇降部材６０が複数のワーク１と共にホッパー室３０内で矢印Ｙ２方向に下降する。このとき、回転リング４の回転規制面４０に載らなかったワーク１は、昇降部材６０のワーク保持面６１に載せられた状態で、下降して第１ホッパー室３０ｆに戻る。   Next, when the elevating cylinder 62 is lowered toward the bottom dead center as described above, the elevating member 60 is lowered in the hopper chamber 30 in the arrow Y2 direction together with the plurality of workpieces 1. At this time, the workpiece 1 that has not been placed on the rotation regulating surface 40 of the rotating ring 4 is lowered and returned to the first hopper chamber 30f while being placed on the workpiece holding surface 61 of the elevating member 60.

回転リング４はリング形状をなしており、上方からの投影面積が同一外径の円板に比較して少ない。このため、ホッパー室３０内に収容されているワーク１の数が多数であるときであっても、回転リング４に載せられるワーク１の数は制限される。よって、回転リング４を回転させるための回転駆動源（回転モータ９０）が過剰に大型化することが抑制され、回転駆動源（回転モータ９０）の小型化に貢献できる。   The rotating ring 4 has a ring shape, and the projected area from above is smaller than that of a disc having the same outer diameter. For this reason, even when the number of workpieces 1 accommodated in the hopper chamber 30 is large, the number of workpieces 1 placed on the rotating ring 4 is limited. Therefore, an excessive increase in the size of the rotation drive source (rotation motor 90) for rotating the rotation ring 4 is suppressed, and this can contribute to a reduction in the size of the rotation drive source (rotation motor 90).

昇降シリンダ６２が矢印Ｙ２方向への下降を開始すると、制御装置２００は、まず、ワーク１を載せた回転リング４を回転モータ９０により中心線Ｐの回りで逆方向（図２に示す矢印Ａ２方向）に所定角度θ１０（例えば２０〜１００°）ぶん逆回転させる。これによりゲート部３５のゲート部３５付近に絡んでいるワーク１を落下させる。その後、制御装置２００は、回転リング４を回転モータによりホッパー室３０の中心線Ｐの回りで正方向（矢印Ａ１方向）に所定角度（例えば２００〜３６０°，θ２０＞θ１０）ぶん所定速度で回転する。このように回転リング４が回転するとき、回転リング４に載らなかったワーク１は、既に第１ホッパー室３０ｆの底側に戻されて待機しており、回転リング４の内周側には存在していない。このため、回転リング４に載らなかったワーク１が回転リング４の回転に過剰に干渉したり接触したりすることが回避され、回転リング４の円滑な回転が確保される。   When the elevating cylinder 62 starts to descend in the direction of the arrow Y2, the control device 200 first moves the rotating ring 4 on which the workpiece 1 is placed in the reverse direction around the center line P (in the direction of arrow A2 shown in FIG. 2). ) By a predetermined angle θ10 (for example, 20 to 100 °). Thereby, the work 1 entangled in the vicinity of the gate portion 35 of the gate portion 35 is dropped. Thereafter, the control device 200 rotates the rotary ring 4 around the center line P of the hopper chamber 30 by a rotary motor in the positive direction (arrow A1 direction) at a predetermined angle (for example, 200 to 360 °, θ20> θ10). To do. When the rotating ring 4 rotates in this way, the workpiece 1 that has not been placed on the rotating ring 4 is already returned to the bottom side of the first hopper chamber 30f and is on standby, and is present on the inner peripheral side of the rotating ring 4. Not done. For this reason, it is avoided that the workpiece | work 1 which was not mounted on the rotating ring 4 interferes excessively with the rotation of the rotating ring 4, or contacts, and smooth rotation of the rotating ring 4 is ensured.

回転リング４の整列溝５内に軸部１０が進入して正姿勢（垂下状態）に整列された複数のワーク１は、回転リング４の正方向（矢印Ａ１方向）の回転によりゲート部３５にまで移送される。そして、正姿勢のワーク１は、ゲート部３５を通過し、排出部３６に移送される。これに対して、回転リング４に載せられているものの整列溝５で整列されていない異状姿勢のワーク１Ｗは、ゲート部３５の手前のガスブロー部３８から吹き出されるブローにより、回転リング４の回転規制面４０から強制的に除去され、ホッパー室３０に落下する。このようにして垂下状態の正姿勢に整列された正姿勢のワーク１のみがゲート部３５から排出部３６に排出される。   The plurality of workpieces 1 aligned in the normal posture (hanging state) with the shaft portion 10 entering the alignment groove 5 of the rotating ring 4 are moved to the gate portion 35 by the rotation of the rotating ring 4 in the positive direction (arrow A1 direction). It is transferred to. Then, the workpiece 1 in the normal posture passes through the gate part 35 and is transferred to the discharge part 36. On the other hand, the workpiece 1W in an abnormal posture that is placed on the rotating ring 4 but not aligned in the alignment groove 5 is rotated by the blowing from the gas blow unit 38 in front of the gate unit 35. It is forcibly removed from the restriction surface 40 and falls into the hopper chamber 30. In this way, only the workpiece 1 in the normal posture aligned with the normal posture in the suspended state is discharged from the gate portion 35 to the discharge portion 36.

その後、制御装置２００は、昇降シリンダ６２を再び駆動させて昇降部材６０をホッパー室３０内において矢印Ｙ１方向に再び上昇させ、ワーク１を昇降部材６０のワーク保持面６１で第２ホッパー室３０ｓ側に持ち上げる。持ち上げられたワーク１のうち上端のワーク１が電磁波７０に触れると、制御装置２００は昇降シリンダ６２の上昇を停止させ、再び速やかに下死点に向けて下降させる。   Thereafter, the control device 200 drives the elevating cylinder 62 again to raise the elevating member 60 again in the direction of the arrow Y1 in the hopper chamber 30, and the work 1 is moved to the second hopper chamber 30s side by the work holding surface 61 of the elevating member 60. Lift to. When the work 1 at the upper end of the lifted work 1 touches the electromagnetic wave 70, the control device 200 stops the raising of the lifting cylinder 62 and quickly lowers again toward the bottom dead center.

ところで、上記したように回転リング４を正方向（矢印Ａ１方向）に回転させているとき、後述の回転モータ９０のトルクが過剰になるおそれがある。この場合、ワーク１がゲート部３５等に絡んでいるおそれがある。このため回転リング４を所定角度θ３（例えば２０〜１００°）逆回転させることが好ましい。これによりゲート部３５のゲート部３５等に絡んでいるワーク１をホッパー室３０に落下させ易くなる。   Incidentally, as described above, when the rotating ring 4 is rotated in the forward direction (the direction of the arrow A1), there is a possibility that the torque of the rotating motor 90 described later becomes excessive. In this case, the workpiece 1 may be entangled with the gate portion 35 or the like. For this reason, it is preferable to reversely rotate the rotating ring 4 by a predetermined angle θ3 (for example, 20 to 100 °). As a result, the workpiece 1 entangled with the gate portion 35 and the like of the gate portion 35 can be easily dropped into the hopper chamber 30.

また回転モータ９０を逆回転させて回転リング４を逆方向（Ａ２方向）させるとき、整列溝５に整列したワーク１等が逆回転（Ａ２方向）してストッパ３００（図２参照）と当たろうとするおそれがある。しかし本実施形態によれば、図５に示すように整列溝５の第２係合面４５が上記したように傾斜している。このため、回転モータ９０を逆回転させて回転リング４を逆方向（Ａ２方向）させるとき、ワーク１の頭部１１はＡ２方向に過剰に後退しない。即ち、ワーク１はストッパ３００（図２参照）に向けて逆回転（Ａ２方向）へ過剰に後退しない。すなわち、ストッパ３００の手前の領域３００Ｘ（図２参照）において、ストッパ３００と第２係合面４５との間にワーク１が挟まること、回転モータ９０のモータトルクが過剰になることが防止できる。つまり、第２係合面４５が上記したように傾斜しているため、回転モータ９０を逆回転させて回転リング４を逆方向（矢印Ａ２方向）に回転させるとき、ワーク１が詰まること、回転モータ９０のモータトルクが過剰になることが防止される。   Further, when the rotary motor 90 is rotated in the reverse direction to rotate the rotary ring 4 in the reverse direction (A2 direction), the workpiece 1 and the like aligned in the alignment groove 5 rotate in the reverse direction (A2 direction) and hit the stopper 300 (see FIG. 2). There is a risk of trying. However, according to the present embodiment, the second engagement surface 45 of the alignment groove 5 is inclined as described above as shown in FIG. For this reason, when the rotary motor 90 is rotated in the reverse direction to rotate the rotary ring 4 in the reverse direction (A2 direction), the head 11 of the workpiece 1 does not excessively move back in the A2 direction. In other words, the workpiece 1 does not excessively move backward (A2 direction) toward the stopper 300 (see FIG. 2). That is, it is possible to prevent the workpiece 1 from being sandwiched between the stopper 300 and the second engagement surface 45 and the motor torque of the rotary motor 90 from becoming excessive in the region 300X in front of the stopper 300 (see FIG. 2). In other words, since the second engagement surface 45 is inclined as described above, when the rotary motor 90 is rotated in the reverse direction and the rotary ring 4 is rotated in the reverse direction (arrow A2 direction), the workpiece 1 is clogged and rotated. The motor torque of the motor 90 is prevented from becoming excessive.

すなわち、前述したように、回転リング４を逆回転（Ａ２方向）させて回転リング４を逆方向（逆方向（矢印Ａ２方向）に回転させるとき、第１係合面４４による押圧力はワーク１の頭部１１に作用しない。このため図５に示すように、ワーク１の頭部１１を矢印Ｙ４方向に浮上させ、ワーク１の頭部１１の下面１２と回転リング４の第１回転規制面４１とを相対滑走させることが期待できる。従って、回転モータ９０が逆回転して回転リング４が逆方向（矢印Ａ２方向）に回転されるときであっても、ワーク１の頭部１１を矢印Ａ２方向に過剰に後退させることが抑制される。   That is, as described above, when the rotating ring 4 is rotated in the reverse direction (A2 direction) and the rotating ring 4 is rotated in the reverse direction (reverse direction (arrow A2 direction)), the pressing force by the first engagement surface 44 is the work 1 5, the head 11 of the work 1 is lifted in the direction of arrow Y4, and the lower surface 12 of the head 11 of the work 1 and the first rotation regulating surface of the rotary ring 4 are shown. 41. Therefore, the head 11 of the workpiece 1 is moved to the arrow even when the rotary motor 90 rotates in the reverse direction and the rotary ring 4 rotates in the reverse direction (arrow A2 direction). Excessive retreat in the A2 direction is suppressed.

その後、制御装置２００は、回転リング４を回転モータ９０により中心線Ｐの回りで正方向（矢示Ａ１方向）に所定速度で回転する。なお、後述の回転モータ９０のトルクが過剰になると、制御装置は、再び、回転モータ９０の逆回転、その後の正回転を実施する。   Thereafter, the control device 200 rotates the rotating ring 4 around the center line P in the forward direction (arrow A1 direction) at a predetermined speed by the rotating motor 90. Note that when the torque of the rotation motor 90 described later becomes excessive, the control device again performs the reverse rotation of the rotation motor 90 and the subsequent normal rotation.

上記したように本実施形態によれば、昇降部材６０の上昇、回転リング４へのワーク１の載置、昇降部材６０の下降、回転リング４の回転によるワーク排出部３６への移送が繰り返される。これによりホッパー室３０に収容されているワーク１は、整列溝５により整列され、更に排出部３６から排出される。   As described above, according to the present embodiment, the ascending / descending member 60 is raised, the workpiece 1 is placed on the rotating ring 4, the ascending / descending member 60 is lowered, and the rotating ring 4 is rotated and transferred to the workpiece discharging unit 36. . As a result, the workpieces 1 accommodated in the hopper chamber 30 are aligned by the alignment groove 5 and further discharged from the discharge portion 36.

以上説明したように本実施形態によれば、回転リング４の回転に伴い、整列溝５に進入したワーク１によれば、頭部１１は軸部１０の上側となり、軸部１０は鉛直方向に沿って下方に向かって垂下して正姿勢で整列する。このように複数のワーク１は回転リング４の回転に伴い整列溝５に垂下状態の正姿勢で整列される。この状態で、回転リング４が中心線Ｐの回りで正方向（矢印Ａ１方向）に回転すると、ワーク１は整列溝５に垂下状態の正姿勢のまま、排出部３６に移動され、ワーク排出部３６から基体２の外部に排出される。   As described above, according to the present embodiment, according to the workpiece 1 that has entered the alignment groove 5 as the rotating ring 4 rotates, the head 11 is on the upper side of the shaft portion 10 and the shaft portion 10 is in the vertical direction. Aligned in a normal posture. As described above, the plurality of workpieces 1 are aligned in a normal posture in a suspended state in the alignment groove 5 as the rotating ring 4 rotates. In this state, when the rotating ring 4 rotates in the positive direction (arrow A1 direction) around the center line P, the workpiece 1 is moved to the discharge portion 36 while being in the normal posture suspended from the alignment groove 5, and the workpiece discharge portion. It is discharged from 36 to the outside of the substrate 2.

加えて本実施形態によれば、図１および図３に示すように、回転リング４の外周壁面４ｐに当接可能なローラ外周面８１をもつ複数の回転体８０が、回転リング４の外周部の周方向において間隔を隔てて分散して空転可能に設けられている。図３に示すように、回転体８０は、直円筒形状またはローラ形状をなしており、鉛直方向に延びる軸線Ｐ３の回りで回転可能とされている。回転体８０の外径はＤＸ（図３参照）として示される。回転体８０は、固定リング２３に軸部１０（図３参照）により軸線Ｐ３回りで回転可能に支持されている。図３に示すように、基体２の径方向（ＤＥ方向）において、回転体８０は、基体２の直筒形状をなす第２壁部２２と回転リング４との間において設けられており、回転リング４の外周壁面４ｐのうち摺動案内面４０１に対して摺動する。回転リング４が中心線Ｐ回りで回転するとき、回転リング４の外周壁面４ｐの摺動案内面４０１との摩擦で複数の回転体８０がこれの軸線Ｐ３まわりで空転し、軸受け機能を果たす。この場合、回転リング４の円滑回転性が確保される。更に、回転リング４の回転同軸性が確保され、回転リング４の回転が円滑となる利点が得られる。従って整列溝５の溝幅Ｗ１の安定化に貢献できる。ひいてはワーク１を正姿勢とさせる精度の安定化に貢献できる。   In addition, according to the present embodiment, as shown in FIGS. 1 and 3, a plurality of rotating bodies 80 having roller outer peripheral surfaces 81 that can come into contact with the outer peripheral wall surface 4 p of the rotating ring 4 are Are provided so as to be able to idle and disperse at intervals in the circumferential direction. As shown in FIG. 3, the rotating body 80 has a right cylindrical shape or a roller shape, and is rotatable around an axis P3 extending in the vertical direction. The outer diameter of the rotating body 80 is shown as DX (see FIG. 3). The rotating body 80 is supported by the fixing ring 23 so as to be rotatable around the axis P3 by the shaft portion 10 (see FIG. 3). As shown in FIG. 3, in the radial direction (DE direction) of the base body 2, the rotating body 80 is provided between the second wall portion 22 having a straight cylindrical shape of the base body 2 and the rotary ring 4. 4 slides with respect to the sliding guide surface 401 of the outer peripheral wall surface 4p. When the rotating ring 4 rotates around the center line P, the plurality of rotating bodies 80 idle around the axis line P3 due to friction with the sliding guide surface 401 of the outer peripheral wall surface 4p of the rotating ring 4 and perform a bearing function. In this case, smooth rotation of the rotating ring 4 is ensured. Furthermore, the rotational coaxiality of the rotating ring 4 is ensured, and the advantage that the rotating ring 4 rotates smoothly is obtained. Therefore, it is possible to contribute to stabilization of the groove width W1 of the alignment groove 5. As a result, it is possible to contribute to the stabilization of the accuracy with which the workpiece 1 is in the normal posture.

本実施形態によれば、図３に示すように、回転体８０は、回転リング４の外周壁面４ｐの凹状をなす摺動案内面４０１に外周側から対面する。摺動案内面４０１は中心線Ｐを中心としてリング状に形成されているが、摺動案内面４０１の外径Ｄ５はベルト取付面４０３の外径Ｄ６よりも小さく設定されている（図３参照）。よって回転体８０を摺動案内面４０１にあてがったとしても、装置全体の径方向の小型化に貢献できる。   According to the present embodiment, as shown in FIG. 3, the rotating body 80 faces the sliding guide surface 401 having a concave shape on the outer peripheral wall surface 4 p of the rotating ring 4 from the outer peripheral side. The sliding guide surface 401 is formed in a ring shape with the center line P as the center, but the outer diameter D5 of the sliding guide surface 401 is set smaller than the outer diameter D6 of the belt mounting surface 403 (see FIG. 3). ). Therefore, even if the rotating body 80 is applied to the sliding guide surface 401, it is possible to contribute to the size reduction of the entire apparatus in the radial direction.

回転リング４の外周壁面４ｐのうちのリング状のベルト取付面４０３には、エンドレス状のタイミングベルト９４が嵌合されて取り付けられている。図３に示すように、ワーク１の軸部１０の先端部１０ｅを接触係合させるための接触係合面４７を形成するための接触係合部４６を有効利用して、タイミングベルト９４を取り付けるためのベルトベルト取付面４０３が形成されている。この場合、回転リング４のコンパクト化を図り得る。また、図３に示すように、回転モータ９０からの駆動トルクを受ける側のベルト取付面４０３の外径Ｄ６は、摺動案内面４０１の外径Ｄ５よりも大きく設定されている。このため、回転モータ９０およびタイミングベルト９４を介してベルト取付面４０３を回転させる回転トルクを増加させるのに有利である。   An endless timing belt 94 is fitted and attached to a ring-shaped belt mounting surface 403 of the outer peripheral wall surface 4p of the rotating ring 4. As shown in FIG. 3, the timing belt 94 is attached by effectively using the contact engagement portion 46 for forming the contact engagement surface 47 for contact engagement with the tip portion 10 e of the shaft portion 10 of the workpiece 1. A belt belt mounting surface 403 is formed. In this case, the rotating ring 4 can be made compact. As shown in FIG. 3, the outer diameter D6 of the belt mounting surface 403 on the side that receives the driving torque from the rotary motor 90 is set larger than the outer diameter D5 of the sliding guide surface 401. This is advantageous in increasing the rotational torque that rotates the belt mounting surface 403 via the rotary motor 90 and the timing belt 94.

更に図３に示すように、回転リング４を回転させる回転駆動源として機能する回転モータ９０が基体２にモータ取付具９１により設けられている。図３に示すように、回転モータ９０の縦向きのモータ軸９２は駆動ギヤ９３をもつ。駆動ギヤ９３の外歯状の歯部９３ａは、タイミングベルト９４の外歯状の歯部９４ａに噛み合う。ここで、回転モータ９０が正方向に回転駆動すると、モータ軸９２の軸線Ｐ６の回りで駆動ギヤ９３が回転し、タイミングベルト９４がホッパー室３０の中心線Ｐ回りで回転し、回転リング４が中心線Ｐの回りで正方向に回転する。なお、モータ９０が逆回転すると、回転リング４は逆回転する。ここで、外径が大きな回転リング４の外周面に外歯を切削加工等で形成すると、コスト高となるが、タイミングベルト９４を回転リング４の外周壁面４ｐのベルト取付面４０３に嵌着させて取り付ければ、コスト低減を図り得る。タイミングベルト９４の歯部９４ａが損傷しても、タイミングベルト９４を交換すれば良い。更に、タイミングベルト９４は芯帯を埋設した高分子材料で形成されているため、噛合音の低減にも有利である。但し、場合によっては、回転リング４の外周壁面４ｐに切削加工や転造加工等で外歯を形成することにしても良い。   Further, as shown in FIG. 3, a rotation motor 90 that functions as a rotation drive source for rotating the rotation ring 4 is provided on the base 2 by a motor attachment 91. As shown in FIG. 3, the vertical motor shaft 92 of the rotary motor 90 has a drive gear 93. The external tooth portion 93 a of the drive gear 93 meshes with the external tooth portion 94 a of the timing belt 94. Here, when the rotary motor 90 is driven to rotate in the forward direction, the drive gear 93 rotates around the axis P6 of the motor shaft 92, the timing belt 94 rotates around the center line P of the hopper chamber 30, and the rotary ring 4 rotates. It rotates in the positive direction around the center line P. When the motor 90 rotates in the reverse direction, the rotating ring 4 rotates in the reverse direction. Here, if external teeth are formed on the outer peripheral surface of the rotating ring 4 having a large outer diameter by cutting or the like, the cost increases, but the timing belt 94 is fitted on the belt mounting surface 403 of the outer peripheral wall surface 4p of the rotating ring 4. If installed, the cost can be reduced. Even if the tooth portion 94a of the timing belt 94 is damaged, the timing belt 94 may be replaced. Furthermore, since the timing belt 94 is formed of a polymer material in which a core band is embedded, it is advantageous for reducing the meshing sound. However, according to circumstances, external teeth may be formed on the outer peripheral wall surface 4p of the rotating ring 4 by cutting or rolling.

（実施形態２）
図９は実施形態２を示す。本実施形態は実施形態１と基本的には同様の構成、同様の作用効果を示すため、図１〜図３等を準用できる。同一機能を奏する部位には、共通の符号を付する。図９に示すように、ワーク１は軸部１０と軸部１０よりも径大な頭部１１とを有する。図９は、ワーク１の頭部１１が回転リング４の拡大溝４３内に落下して第２回転規制面４２に載置され、且つ、軸部１０が鉛直方向に垂下して整列溝５に進入している正姿勢で整列されている状態を示す。図９から理解できるように、本実施形態においても、実施形態１と同様に、回転リング４に形成されている第１係合面４４は鉛直方向に延びているため、ワーク１の頭部１１を前進方向に押圧できる。従って、本実施形態によれば、第１係合面４４は頭部１１を前進方向（図２に示す矢印Ａ１方向）に押圧でき、ワーク移動力が確保される。このため、軸部１０の先端部１０ｅは接触係合部４６の接触係合面４７に接触していない。この場合には、第１係合面４４の押圧力に基づいて、ワーク１を矢印Ａ１方向（図２参照）に前進させることができる。 (Embodiment 2)
FIG. 9 shows a second embodiment. Since this embodiment basically shows the same configuration and the same operation and effect as those of the first embodiment, FIGS. 1 to 3 and the like can be applied mutatis mutandis. A common code | symbol is attached | subjected to the site | part which plays the same function. As shown in FIG. 9, the workpiece 1 has a shaft portion 10 and a head portion 11 having a diameter larger than that of the shaft portion 10. In FIG. 9, the head 11 of the work 1 falls into the enlarged groove 43 of the rotating ring 4 and is placed on the second rotation restricting surface 42, and the shaft portion 10 hangs down in the vertical direction into the alignment groove 5. It shows the state of being aligned in the approaching normal posture. As can be understood from FIG. 9, in the present embodiment as well, as in the first embodiment, the first engagement surface 44 formed on the rotating ring 4 extends in the vertical direction. Can be pressed in the forward direction. Therefore, according to the present embodiment, the first engagement surface 44 can press the head 11 in the forward direction (the direction of the arrow A1 shown in FIG. 2), and the work moving force is ensured. For this reason, the tip portion 10 e of the shaft portion 10 is not in contact with the contact engagement surface 47 of the contact engagement portion 46. In this case, the workpiece 1 can be advanced in the direction of arrow A1 (see FIG. 2) based on the pressing force of the first engagement surface 44.

更に図９に示すように、基体２の第２壁部２２の内周側に取付具２７により固定されている固定壁部２４の内周壁面２４ｉには、凹状の拡径壁面２５０が径外方向に退避しつつリング状に形成されている。この結果、回転リング４に形成された凹状の縮径壁面４８と固定壁部２４の凹状の拡径壁面２５０とにより、逃がし空間４９の幅寸法ＥＡが更に増加されている。この場合、ワーク１の軸部１０が回転リング４の外周壁面４ｐや固定壁部２４の内周壁面２４ｉに干渉することが更に抑制される。   Further, as shown in FIG. 9, a concave enlarged diameter wall surface 250 is formed on the inner peripheral wall surface 24 i of the fixed wall portion 24 fixed to the inner peripheral side of the second wall portion 22 of the base 2 by the fixture 27. It is formed in a ring shape while retracting in the direction. As a result, the width dimension EA of the escape space 49 is further increased by the concave reduced diameter wall surface 48 formed in the rotating ring 4 and the concave diameter expanded wall surface 250 of the fixed wall portion 24. In this case, the shaft portion 10 of the work 1 is further suppressed from interfering with the outer peripheral wall surface 4p of the rotating ring 4 and the inner peripheral wall surface 24i of the fixed wall portion 24.

（参考例）
図１０は参考例を示す。この形態は実施形態１と基本的には同様の構成、同様の作用効果を示す。図１０に示すように、ワーク１は軸部１０と軸部１０よりも径大な頭部１１とを有する。頭部１１の外径Ｅ２は軸部１０の外径Ｅ１よりもかなり大きく設定されている。従って、回転リング４の回転規制面４０とワーク１の頭部１１の下面１２との摩擦面積ＳＡが大きく、摩擦係合力も大きい。このため回転リング４が正方向に回転されるとき、この摩擦係合力によりワーク１の頭部１１も同方向に移動される。 ( Reference example )
FIG. 10 shows a reference example . This embodiment basically has the same configuration and the same function and effect as those of the first embodiment. As shown in FIG. 10, the workpiece 1 includes a shaft portion 10 and a head portion 11 having a diameter larger than that of the shaft portion 10. The outer diameter E2 of the head 11 is set to be considerably larger than the outer diameter E1 of the shaft portion 10. Therefore, the friction area SA between the rotation restricting surface 40 of the rotating ring 4 and the lower surface 12 of the head 11 of the work 1 is large, and the friction engagement force is also large. Therefore, when the rotating ring 4 is rotated in the forward direction, the head 11 of the workpiece 1 is also moved in the same direction by this frictional engagement force.

このため実施形態１で形成されていた鉛直方向に延びる第１係合面４４は、回転リング４に設けられていない。同様に、第１係合面４４を形成するためにΔｈぶん下側に位置する第２回転規制面４２は形成されていない。同様に、第２回転規制面４２を形成するための拡大溝４３も回転リング４には形成されていない。図１０に示す参考例によれば、ワーク１の軸部１０の先端部１０ｅは接触係合部４６の接触係合面４７に接触していない。但し、ワーク１の軸部１０の先端部１０ｅを接触係合部４６の接触係合面４７に接触させても良い。 For this reason, the first engagement surface 44 extending in the vertical direction formed in the first embodiment is not provided in the rotating ring 4. Similarly, in order to form the first engagement surface 44, the second rotation restricting surface 42 located on the lower side of Δh is not formed. Similarly, the enlarged groove 43 for forming the second rotation restricting surface 42 is not formed in the rotating ring 4. According to the reference example shown in FIG. 10, the tip portion 10 e of the shaft portion 10 of the workpiece 1 is not in contact with the contact engagement surface 47 of the contact engagement portion 46. However, the tip end portion 10 e of the shaft portion 10 of the workpiece 1 may be brought into contact with the contact engagement surface 47 of the contact engagement portion 46.

（その他）
上記した実施形態１によれば、回転リング４を正方向に回転させるにあたり、まず、最初に逆回転させるが、場合によっては逆回転させずとも良い。更に、ワーク１センサを廃止し、昇降シリンダ６２の昇降量を一定量にしても良い。回転リング４の回転円滑性が確保されるときには、回転体８０を廃止しても良い。回転リング４の外周部にエンドレス状のタイミングベルトを嵌着させているが、回転リング４の外周部に外歯部を直接形成しても良い。昇降部材６０のワーク保持面６１は、ワーク１を持ち上げ得る限り、平坦状としても良い。 (Other)
According to the first embodiment described above, when rotating the rotating ring 4 in the forward direction, first, the rotating ring 4 is first reversely rotated. However, in some cases, the rotating ring 4 may not be reversely rotated. Furthermore, the workpiece 1 sensor may be eliminated, and the lift amount of the lift cylinder 62 may be a constant amount. When the rotational smoothness of the rotating ring 4 is ensured, the rotating body 80 may be eliminated. Although an endless timing belt is fitted to the outer peripheral portion of the rotating ring 4, an external tooth portion may be directly formed on the outer peripheral portion of the rotating ring 4. The workpiece holding surface 61 of the elevating member 60 may be flat as long as the workpiece 1 can be lifted.

ワーク１の形状としては、特に限定されず、要するに、軸部１０と、軸部１０よりも径大な頭部１１とを有していれば良い。ホッパー室３０は第１ホッパー室３０ｆと第２ホッパー室３０ｓとに分かれているが、これに限らず、浅い底をもつホッパー室としても良い。この場合、多数のワークを上方に持ち上げる必要がないため、昇降駆動源として機能する昇降シリンダ６２を廃止することもできる。この場合、ワーク１を回転リング４の上に適宜供給させることが好ましい。   The shape of the workpiece 1 is not particularly limited, and in short, it only has to include the shaft portion 10 and the head portion 11 having a larger diameter than the shaft portion 10. The hopper chamber 30 is divided into a first hopper chamber 30f and a second hopper chamber 30s. However, the hopper chamber 30 is not limited to this and may be a hopper chamber having a shallow bottom. In this case, since it is not necessary to lift a number of workpieces upward, the lifting cylinder 62 that functions as a lifting drive source can be eliminated. In this case, it is preferable that the work 1 is appropriately supplied onto the rotating ring 4.

昇降駆動源を使用するときであっても、昇降シリンダ６２に限定されず、モータ機構を昇降駆動源として利用しても良い。回転駆動源としてはモータに限定されず、回転方向に駆動させるシリンダ等でも良く、要するに、回転リング４を周方向に回転させ得るものであれば良い。回転リング４２は３６０°１周するような形状が好ましいが、場合によっては、３００〜３５５°程度のＣリングでも良い。ワーク１センサは発信部と受信部とを有するが、これに限らず、ワーク１が満杯に近いことを検知するメカニカルなスイッチでも良い。ワーク１の絡みが少ないときには、ガスブロー部３８を廃止しても良い。本発明は上記し且つ図面に示した実施形態のみに限定されるものではなく、要旨を逸脱しない範囲内で適宜変更して実施できる。   Even when the lifting drive source is used, it is not limited to the lifting cylinder 62, and a motor mechanism may be used as the lifting drive source. The rotational drive source is not limited to a motor, and may be a cylinder or the like that is driven in the rotational direction. In short, it may be anything that can rotate the rotating ring 4 in the circumferential direction. The rotating ring 42 preferably has a shape that makes one round of 360 °, but may be a C-ring of about 300 to 355 ° depending on circumstances. The workpiece 1 sensor has a transmitter and a receiver, but is not limited to this, and may be a mechanical switch that detects that the workpiece 1 is almost full. When there is little entanglement of the work 1, the gas blow unit 38 may be eliminated. The present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications within the scope not departing from the gist.

２は基体、２１は第１壁部、２２は第２壁部、３０はホッパー室、３０ｆは第１ホッパー室、３０ｓは第２ホッパー室、３５はゲート部、４は回転リング、４１は第１回転規制面、４２は第２回転規制面、４３は拡大溝、４４は第１係合面、４５は第２係合面、４６は接触係合部、４７は接触係合面、４８は縮径壁面、４９は逃がし空間、５は整列溝、６０は昇降部材、６１はワーク保持面、６２は昇降シリンダ（昇降駆動源）、７はワークセンサ、７１は発信部、７２は受信部、８０は回転体、９０は回転モータ（回転駆動源）、９４はタイミングベルト、Ｐは中心線を示す。   2 is a base, 21 is a first wall, 22 is a second wall, 30 is a hopper chamber, 30f is a first hopper chamber, 30s is a second hopper chamber, 35 is a gate portion, 4 is a rotating ring, and 41 is a first 1 rotation restricting surface, 42 a second rotation restricting surface, 43 an enlarged groove, 44 a first engaging surface, 45 a second engaging surface, 46 a contact engaging portion, 47 a contact engaging surface, 48 Reduced wall surface, 49 is a relief space, 5 is an alignment groove, 60 is an elevating member, 61 is a work holding surface, 62 is an elevating cylinder (elevating drive source), 7 is a work sensor, 71 is a transmitter, 72 is a receiver, Reference numeral 80 denotes a rotating body, 90 denotes a rotary motor (rotation drive source), 94 denotes a timing belt, and P denotes a center line.

Claims (5)

軸部と前記軸部の一端部に設けられた頭部とをもつワークのうち前記頭部を前記軸部の上側とし且つ前記軸部を鉛直方向に沿わせるように前記ワークを垂下状態の正姿勢に整列させるワーク整列装置であって、
縦方向に延びる中心線の回りに形成された筒形状の内周壁面をもつ固定壁部を有する基体と、
前記基体の前記固定壁部の内周側に配置され前記基体の前記中心線の回りで水平方向に沿って回転可能に設けられた回転リングと、
前記回転リングを中心線の回りで水平方向に沿って回転させる回転駆動源と、
前記基体に設けられ前記垂下状態の正姿勢に整列された前記ワークを排出させるワーク排出部とを具備しており、
前記基体の前記固定壁部は、前記回転リングの周方向に沿って延設され前記ワークの頭部を接近または載置させて前記頭部の位置を規制させる固定規制面を有し、前記回転リングは、前記回転リングの周方向に沿って延設され前記ワークの前記頭部を接近または載置させて前記頭部の位置を規制させる回転規制面を有しており、
前記回転リングおよび前記基体の前記固定壁部は、前記ワークの前記頭部を軸部の上側とし且つ前記ワークの前記軸部を鉛直方向に沿って下方に向かって垂下させるように複数の前記ワークを垂下状態の正姿勢で整列させる整列溝を形成しており、
前記整列溝は、前記回転リングの周方向に沿って延設されており、上方が開放されるように前記回転リングの外周壁面と前記基体の前記固定壁部の内周壁面との間に配置され、
前記回転リングの前記回転規制面は、垂下状態の正姿勢とされた前記ワークの前記頭部を接近または載置させるように前記回転リングの周方向に沿って延設された第１回転規制面と、垂下状態の正姿勢とされた前記ワークの前記頭部を接近または載置させるように前記第１回転規制面よりもΔｈぶん下方に位置しかつ前記回転リングの周方向に沿って延設された第２回転規制面とを有しており、
前記回転リングは、前記第２回転規制面のうち前記回転リングの回転方向の上流側に形成された第１係合面と、前記第２回転規制面のうち前記回転リングの回転方向の下流側に形成された第２係合面とを有することを特徴とするワーク整列装置。 Of the workpiece having a shaft portion and a head portion provided at one end portion of the shaft portion, the workpiece is suspended in a normal state so that the head portion is above the shaft portion and the shaft portion is along the vertical direction. A workpiece alignment device for aligning with a posture,
A base body having a fixed wall portion having a cylindrical inner peripheral wall surface formed around a center line extending in the vertical direction;
A rotating ring disposed on the inner peripheral side of the fixed wall portion of the base body and provided to be rotatable along a horizontal direction around the center line of the base body;
A rotation drive source for rotating the rotating ring around a center line along a horizontal direction;
A work discharge unit that discharges the work that is provided on the base body and aligned in the suspended posture.
The fixed wall portion of the base has a fixed restricting surface that extends along a circumferential direction of the rotating ring and restricts the position of the head by approaching or placing the head of the workpiece. The ring has a rotation restricting surface that extends along a circumferential direction of the rotating ring and restricts the position of the head by approaching or placing the head of the workpiece.
The rotating ring and the fixed wall portion of the base are a plurality of the workpieces so that the head portion of the workpiece is above the shaft portion and the shaft portion of the workpiece is suspended downward along the vertical direction. Forming an alignment groove that aligns in a normal position in a suspended state,
The alignment groove extends along the circumferential direction of the rotating ring, and is arranged between the outer peripheral wall surface of the rotating ring and the inner peripheral wall surface of the fixed wall portion of the base so that the upper side is opened. It is,
The rotation restricting surface of the rotating ring is a first rotation restricting surface that extends along the circumferential direction of the rotating ring so that the head of the work in the suspended posture is approached or placed. And extending along the circumferential direction of the rotary ring so that the head of the workpiece in the suspended state is placed closer to or placed by Δh than the first rotation regulating surface. A second rotation restriction surface,
The rotation ring includes a first engagement surface formed on the upstream side in the rotation direction of the rotation ring in the second rotation restriction surface, and a downstream side in the rotation direction of the rotation ring among the second rotation restriction surfaces. work aligning system according to claim Rukoto that having a second engagement surface formed. 請求項１において、前記第１係合面は、垂下状態の正姿勢に整列させた前記ワークを前記ワーク排出部に向けて前進させるように前記回転リングが正方向に回転とするとき、前記第２回転規制面に前記頭部が接近または載置された前記ワークのうち前記頭部を前記ワーク排出部に向けて前進させるように押圧させる押圧面であり、
前記第２係合面は、前記第１回転規制面から前記第２回転規制面に向かうにつれて昇り坂となる傾斜面で形成され、前記回転リングが前記中心線の回りで逆方向に回転とするとき、前記第２回転規制面に前記頭部が載置された前記ワークのうち前記頭部を前記第２回転規制面から前記第１回転規制面に移し替えて前記頭部を前記第１回転規制面において相対滑走可能とさせることを特徴とするワーク整列装置。 2. The first engagement surface according to claim 1 , wherein the first engagement surface is rotated when the rotating ring is rotated in the forward direction so that the workpiece aligned in a suspended normal posture is advanced toward the workpiece discharge portion. 2 is a pressing surface that presses the head so that the head moves forward toward the workpiece discharge portion among the workpieces in which the head approaches or is placed on the rotation restriction surface.
The second engagement surface is formed as an inclined surface that rises as it goes from the first rotation restriction surface to the second rotation restriction surface, and the rotation ring rotates in the reverse direction around the center line. When the head is placed on the second rotation restriction surface, the head is moved from the second rotation restriction surface to the first rotation restriction surface to move the head to the first rotation. A work aligning device characterized by being capable of relative sliding on a regulating surface. 請求項１〜２のうちの一項において、前記中心線に沿って切断した断面において、前記回転リングは前記回転規制面の下方に位置する接触係合部を有しており、前記接触係合部は、前記頭部が前記回転規制面に載置された前記ワークのうち前記整列溝に進入した前記軸部の先端部と接触させて係合させ、且つ、前記ワークが前記回転リングと共に移動する移動力を前記係合により補助することを特徴とするワーク整列装置。 3. The contact ring according to claim 1, wherein the rotary ring has a contact engagement portion positioned below the rotation restricting surface in a cross section cut along the center line. The head is brought into contact with and engaged with the tip of the shaft portion that has entered the alignment groove among the workpieces placed on the rotation regulating surface, and the workpiece moves together with the rotating ring. A workpiece aligning device characterized by assisting a moving force to be generated by the engagement. 請求項１〜３のうちの一項において、前記中心線に沿って切断した断面において、前記回転リングの外周壁面と前記基体の前記固定壁部の内周壁面のうちの少なくとも一方は、前記ワークの前記軸部が当該一方に接触する頻度を低下させることにより、前記回転リングおよび／または前記ワークの損傷を抑える逃がし空間を有することを特徴とするワーク整列装置。 In one of claims 1 to 3, in a cross section taken along the center line, at least one of the inner peripheral wall surface of the fixed wall portion of the outer peripheral wall and the base of the rotating ring, the workpiece A workpiece alignment apparatus comprising a relief space that reduces damage to the rotating ring and / or the workpiece by reducing the frequency with which the shaft portion of the shaft contacts the one. 請求項１〜４のうちの一項において、前記基体は、多数の前記ワークを収容させるホッパー室と、前記ホッパー室において上死点と下死点との間において前記中心線が延びる方向に沿って上昇および下降可能に配置され上昇に伴い前記ワークを前記回転リングの前記回転規制面に移動させる昇降部材と、前記昇降部材をこれの上死点と下死点との間において昇降させる昇降駆動源とを有することを特徴とするワーク整列装置。 In one of claims 1-4, wherein the substrate is along the direction in which the center line extends between the hopper chamber for accommodating a plurality of the workpiece, and the top dead center and the bottom dead center in the hopper chamber Elevating member that is arranged so that it can be raised and lowered, and moves the workpiece to the rotation regulating surface of the rotating ring as it rises, and elevating drive that raises and lowers the elevating member between its top dead center and bottom dead center And a work aligning device.
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