JP2001129486A - Parts shape sorting device - Google Patents
Parts shape sorting deviceInfo
- Publication number
- JP2001129486A JP2001129486A JP31278399A JP31278399A JP2001129486A JP 2001129486 A JP2001129486 A JP 2001129486A JP 31278399 A JP31278399 A JP 31278399A JP 31278399 A JP31278399 A JP 31278399A JP 2001129486 A JP2001129486 A JP 2001129486A
- Authority
- JP
- Japan
- Prior art keywords
- sorting
- rollers
- pair
- component
- shape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Sorting Of Articles (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は部品形状選別装置に
係り、特に簡素な構造を有し、多数の部品の形状を高い
選別精度で連続的かつ効率的に選別でき、部品の検査工
数を大幅に低減することが可能な部品形状選別装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component shape sorting apparatus, which has a particularly simple structure and can continuously and efficiently sort the shape of a large number of components with high sorting accuracy, greatly reducing the number of man-hours for inspecting components. The present invention relates to a component shape sorting device that can be reduced to a minimum.
【０００２】[0002]
【従来の技術】製品または半製品としての部品の寸法仕
上りや形状精度を測定して所定の公差範囲内の部品のみ
を選別する部品形状選別装置が多くの産業分野で使用さ
れている。2. Description of the Related Art A component shape sorting apparatus which measures the dimensional finish and shape accuracy of a part as a product or a semi-finished product and sorts only parts within a predetermined tolerance range is used in many industrial fields.
【０００３】例えば、図６は従来の部品形状選別装置１
の概略構成例を示す平面図である。この選別装置１は、
球状のベアリングボール部品２の外径の適否を判断し、
部品２を寸法別に区分選別する方式を採用しており、回
転自在に構成された一対の選別ローラｒ１，ｒ２を、そ
の回転軸Ｌ１，Ｌ２が非平行となるように配置してい
る。つまり、ローラ間の間隙が部品２の転がり方向（矢
印）に向けて徐々に拡大するように一対のローラを配置
して構成されている。一対の選別ローラｒ１，ｒ２の間
には、その間隙（隙間）寸法の大きさを変えて、軸方向
に３種の選別エリアＡ１，Ａ２，Ａ３が形成されてい
る。[0003] For example, FIG. 6 shows a conventional component shape sorting apparatus 1.
It is a top view which shows the example of a schematic structure of. This sorting device 1
Judge the suitability of the outer diameter of the spherical bearing ball part 2,
A method of sorting and sorting the components 2 by size is adopted, and a pair of rotatable sorting rollers r1 and r2 are arranged such that their rotation axes L1 and L2 are non-parallel. That is, a pair of rollers is arranged so that the gap between the rollers gradually increases in the rolling direction (arrow) of the component 2. Between the pair of sorting rollers r1 and r2, three kinds of sorting areas A1, A2 and A3 are formed in the axial direction by changing the size of the gap (gap).
【０００４】そして複数の部品２が、互いに外側方向に
回転する一対の選別ローラｒ１，ｒ２の一端側（図６に
おいて左端側）から連続的に選別ローラｒ１，ｒ２間に
供給され、部品２は選別ローラｒ１，ｒ２により回転力
を付与され、他端側（図６において右端側）に順次送り
出される。このとき、図７（ａ）に示すように欠けが発
生していて所定の直径ｄ１より小さい直径ｄ２を有する
部品２ａは、選別ローラｒ１，ｒ２間の隙間寸法が小さ
い選別エリアＡ１において隙間を通り抜け下方に落下す
る。A plurality of parts 2 are continuously supplied from one end side (left end side in FIG. 6) of the pair of sorting rollers r1 and r2 rotating outwardly between the sorting rollers r1 and r2. Rotational force is applied by the sorting rollers r1 and r2, and the rollers are sequentially fed to the other end (the right end in FIG. 6). Clearance In this case, part 2a having a predetermined diameter d 1 is smaller than the diameter d 2 missing has occurred as shown in FIG. 7 (a), the sorting roller r1, the gap dimension between r2 is smaller selection area A1 And fall downward.
【０００５】また所定の寸法公差内の直径を有する部品
２は選別エリアＡ２において、ローラ間の隙間を通り抜
け下方に落下する。一方、図７（ｂ）に示すように２個
のボールが団子状に一体化した粗大な不良部品２ｂおよ
び図７（ｃ）に示すようにある方向の直径が過大になっ
た楕円状の不良部品２ｃは、長軸の回りのみに回転し易
く、隙間寸法が小さい選別エリアＡ１，Ａ２を通過後、
隙間寸法が大きい選別エリアＡ３において、ローラ間の
隙間を通り抜け下方に落下する。その結果、多数の部品
は、その形状寸法の大小に応じて選別されて、それぞれ
個別に回収される。The part 2 having a diameter within a predetermined dimensional tolerance falls down through the gap between the rollers in the sorting area A2. On the other hand, as shown in FIG. 7B, a coarse defective part 2b in which two balls are integrated in a dumpling shape, and an elliptical defect in which the diameter in one direction is excessive as shown in FIG. 7C. The part 2c is easy to rotate only around the long axis, and after passing through the sorting areas A1 and A2 with a small gap size,
In the sorting area A3 having a large gap size, the separation area A3 falls downward through the gap between the rollers. As a result, a large number of parts are sorted according to the size of the shape and size, and individually collected.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記の
ような従来の部品形状選別装置においては、一対の選別
ローラの回転速度が同一となるように構成されているた
め、選別ローラ上を転動する部品の回転方向は殆ど一定
となり易いため、部品の全ての直径方向における寸法形
状を正確に捉えることができない場合もあった。例え
ば、図７（ａ）に示すような欠けを生じた部品２ａが、
正規の直径ｄ１方向を回転中心として回転しながら選別
ローラ上を転動する場合には、欠けを生じた部分を含む
過小な直径ｄ ２方向の寸法は選別エリアＡ１では測定さ
れず、規格通りの直径ｄ１を有する部品２のみを判定す
る選別エリアＡ２において選別され回収されてしまう。
したがって、部品の選別精度が低下する問題点があっ
た。SUMMARY OF THE INVENTION
In such a conventional part shape sorter, a pair of sorters
The rollers are configured to have the same rotation speed.
The direction of rotation of parts rolling on the sorting roller is almost constant
Dimensional shape in all diametrical directions
In some cases, the shape could not be accurately captured. example
For example, the part 2a having a chip as shown in FIG.
Regular diameter d1Sorting while rotating around the direction of rotation
When rolling on rollers, include the part where chipping occurred
Underdiameter d 2The dimension in the direction is measured in the sorting area A1.
Not conform to standard diameter d1Judge only part 2 having
Is sorted and collected in the sorting area A2.
Therefore, there is a problem that the sorting accuracy of parts is reduced.
Was.
【０００７】さらに、一対の選別ローラの回転軸が非平
行となるように配置した従来の選別装置においては、選
別ローラ間の隙間（間隙寸法）が連続的に変化するよう
に構成されていたため、各選別エリアの境界が曖昧にな
り易く部品の選別精度をさらに低下させる原因となって
いた。Further, in the conventional sorting apparatus in which the rotation axes of the pair of sorting rollers are arranged to be non-parallel, the gap (gap size) between the sorting rollers is configured to change continuously. The boundaries between the sorting areas are likely to be ambiguous, which further reduces the sorting accuracy of the parts.
【０００８】また、一対の選別ローラ等のツール間に極
微小のテーパ状の隙間を形成したり、その隙間寸法を高
精度に調整する機構が必要であるため、選別装置の構成
部品の加工組立精度を極めて高く設定する必要があり、
また、隙間の調整機構が複雑化して選別装置の製造コス
トが極めて高価になるとともに、保守管理や調整作業に
高度な技倆が必須となる問題点もあった。Further, since a mechanism for forming a very small tapered gap between tools such as a pair of sorting rollers or the like and adjusting the gap dimension with high precision is required, machining and assembly of components of the sorting apparatus are required. It is necessary to set the accuracy very high,
In addition, the gap adjusting mechanism becomes complicated and the manufacturing cost of the sorting apparatus becomes extremely high. In addition, there is a problem that a high level of skill is required for maintenance and adjustment work.
【０００９】本発明は上記問題点を解決するためになさ
れたものであり、簡素な構造を有し、多数の部品の形状
を高い選別精度で連続的かつ効率的に選別でき、部品の
検査工数を大幅に低減することが可能な部品形状選別装
置を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, has a simple structure, can continuously and efficiently sort the shapes of a large number of parts with high sorting accuracy, and has a large number of inspection steps for parts. It is an object of the present invention to provide a component shape sorting device capable of greatly reducing the number of components.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するため
に本発明に係る部品形状選別装置は、一対の選別ローラ
を、その回転軸が相互に平行となるように基台上に回転
自在に配置し、少なくとも一方の選別ローラには外径が
異なる複数の選別エリアが軸方向に沿って形成され、一
対の選別ローラの間隙部の一端に多数の部品を順次供給
し、選別ローラの回転力によって各部品を転動させなが
ら間隙部の他端方向に送り出し、各選別エリアにおける
一対の選別ローラの外周面の間隙の大小によって各部品
の形状を選別するように構成するとともに、上記一対の
選別ローラの外周面の周速が相互に異なるように構成し
たことを特徴とする。In order to achieve the above object, a component shape sorting apparatus according to the present invention is arranged such that a pair of sorting rollers are rotatable on a base such that their rotation axes are parallel to each other. A plurality of sorting areas having different outer diameters are formed along the axial direction on at least one of the sorting rollers, and a large number of parts are sequentially supplied to one end of a gap between the pair of sorting rollers, and the rotational force of the sorting roller is adjusted. Each component is rolled and fed in the other end direction of the gap portion, and the shape of each component is selected according to the size of the gap between the outer peripheral surfaces of the pair of selection rollers in each selection area. The peripheral speeds of the outer peripheral surfaces of the rollers are different from each other.
【００１１】また、複数の選別エリアは、少なくとも一
方の選別ローラの外径を軸方向に段階的に変えて形成す
るとよい。さらに、一対の選別ローラの回転軸は水平面
に対して所定の傾斜角度をもって傾斜するように構成し
てもよい。また、上記傾斜角度が１〜４０度の範囲であ
ることが好ましい。The plurality of selection areas may be formed by changing the outer diameter of at least one of the selection rollers stepwise in the axial direction. Further, the rotation axes of the pair of sorting rollers may be configured to be inclined at a predetermined inclination angle with respect to the horizontal plane. Further, it is preferable that the inclination angle is in a range of 1 to 40 degrees.
【００１２】さらに、部品が略球形状の部品であるとき
に、特に顕著な効果が得られる。また、一対の選別ロー
ラの外周面の表面粗さが相互に異なるように構成するこ
ともできる。さらに、一対の選別ローラの少なくとも一
方が他方の選別ローラに対して平行移動自在に構成して
もよい。Furthermore, when the component is a substantially spherical component, a particularly remarkable effect is obtained. In addition, the pair of sorting rollers may be configured so that the outer surfaces have different surface roughnesses. Further, at least one of the pair of sorting rollers may be configured to be freely movable in parallel with respect to the other sorting roller.
【００１３】本発明において一対の選別ローラは、その
回転軸が相互に平行または平行移動自在となるように基
台上に配置されているため、非平行である場合と比較し
て各選別ローラを回転駆動するための減速モータからの
動力伝達方式も簡素になる。また、選別ローラ間の隙間
も平行であり、隙間を形成するためにローラの外周部を
加工する際にも高度な寸法管理は不要となる。In the present invention, the pair of sorting rollers are arranged on the base so that their rotation axes can be parallel or parallel to each other, so that each sorting roller is compared with the case where it is not parallel. The method of transmitting power from the deceleration motor for rotational driving is also simplified. In addition, the gaps between the sorting rollers are also parallel, and high-level dimensional control is not required when processing the outer peripheral portion of the rollers to form the gaps.
【００１４】また、少なくとも一方の軸方向に形成され
る複数の選別エリアは、一対の選別ローラ間の隙間（間
隙）の大小によって部品の形状を選別する部位である。
この選別エリアは少なくとも一方の選別ローラの外径を
異ならせることによって形成されるものであるが、各選
別エリアにおける隙間は連続的に変化するものではな
く、その選別エリア内では一定とし、隣接する選別エリ
アの隙間とは異なるものである。すなわち、複数の選別
エリアは、少なくとも一方の選別ローラの外径を軸方向
に段階的に変えて形成することにより、連続的に変化さ
せた従来方式と比較して、隣接する選別エリアの境界が
明瞭になり、部品の選別精度を向上させることができ
る。The plurality of selection areas formed in at least one axial direction are parts for selecting the shape of a part according to the size of a gap (gap) between a pair of selection rollers.
This sorting area is formed by making the outer diameter of at least one sorting roller different, but the gap in each sorting area does not change continuously, but is constant within the sorting area and adjacent to each other. It is different from the gap in the sorting area. That is, the plurality of sorting areas are formed by changing the outer diameter of at least one of the sorting rollers in the axial direction in a stepwise manner. It becomes clear, and the sorting accuracy of parts can be improved.
【００１５】また、本発明装置が処理の対象とする部品
の形状は、特に限定されるものではなく、一対の選別ロ
ーラの間で各方向に容易に回転転動する形状の部品であ
れば、どのような形状の部品にも適用可能である。しか
しながら、特にベアリングボールなどの略球形状を有す
る部品であれば、部品の各方向の寸法を瞬時に測定でき
るため、選別精度をより向上させることができる。The shape of the component to be processed by the apparatus of the present invention is not particularly limited, as long as the component has a shape that can easily rotate and roll in each direction between a pair of sorting rollers. It can be applied to parts of any shape. However, in the case of a part having a substantially spherical shape, such as a bearing ball, the dimensions of the part in each direction can be measured instantaneously, so that the sorting accuracy can be further improved.
【００１６】また、一対の選別ローラの外周面の周速が
相互に異なるように構成することにより、各選別ローラ
の外周面と部品との接触部における接触抵抗（摩擦係
数）が異なることになり、相対的に接触抵抗が大きい
か、または周速が速い選別ローラの回転方向と反対方向
の回転力が部品に付与される。この選別ローラによって
付与される回転の中心軸は選別ローラの回転軸と平行で
ある一方、部品がローラ上を送り出される際の回転の中
心軸は選別ローラの回転軸と直交する方向に延びる。そ
して送り出される際の回転力と一方の選別ローラから付
与される回転力とが複合化されて、部品は一対の選別ロ
ーラ上であらゆる方向にスパイラル状に回転転動しなが
ら、ローラの一端側から他端側に転がり移動することが
できる。したがって、部品の表面が一対の選別ローラに
よって万遍無く接触されることとなり、部品の各方向に
おける寸法形状が選別の基準となる。したがって、従来
装置のように部品が一方向にのみ回転する場合と比較し
て、部品の選別精度を大幅に向上させることが可能にな
る。Further, by configuring the peripheral speeds of the outer peripheral surfaces of the pair of sorting rollers to be different from each other, the contact resistance (coefficient of friction) at the contact portion between the outer peripheral surface of each of the sorting rollers and the component is different. In addition, a rotational force in a direction opposite to the rotational direction of the selection roller having relatively large contact resistance or high peripheral speed is applied to the component. The central axis of rotation imparted by the sorting roller is parallel to the axis of rotation of the sorting roller, while the central axis of rotation when the component is fed over the roller extends in a direction perpendicular to the axis of rotation of the sorting roller. Then, the rotating force at the time of sending out and the rotating force applied from one of the sorting rollers are combined, and the components are rotated in a spiral shape in all directions on the pair of sorting rollers, while being rotated from one end of the roller. It can roll to the other end. Therefore, the surfaces of the components are uniformly contacted by the pair of selection rollers, and the dimensions and shapes in each direction of the components are the criteria for selection. Therefore, it is possible to greatly improve the sorting accuracy of the parts as compared with the case where the parts rotate only in one direction as in the conventional apparatus.
【００１７】また、一対の選別ローラの回転軸は水平に
した場合において、一端側から供給された部品はローラ
によって回転力を付与されて他端側に転動する。しかし
ながら、一対の選別ローラの回転軸を水平面に対して所
定の傾斜角度をもって、部品投入側から排出側に傾斜さ
せることにより、部品の送り出し速度を高め、部品の選
別時間をより短縮することができる。上記選別ローラの
回転軸の最適な傾斜角度は、部品の形状，材質，寸法，
重量などの条件によって異なるが、１〜４０度の範囲が
好ましい。この傾斜角度が１度未満の場合には、上記部
品の送り出し速度および選別処理効率の改善効果が不十
分となる一方、傾斜角度が４０度を超えるように過大に
なると、部品がローラ上を回転せずに自重で滑り落ちる
割合が多くなるため、選別操作が困難になる。When the rotating shafts of the pair of sorting rollers are horizontal, the components supplied from one end are rolled to the other end by the application of rotational force by the rollers. However, by inclining the rotating shafts of the pair of sorting rollers from the component input side to the discharge side at a predetermined inclination angle with respect to the horizontal plane, it is possible to increase the component delivery speed and further reduce the component sorting time. . The optimal inclination angle of the rotating shaft of the above sorting roller is determined by the shape, material, dimensions,
Although it varies depending on conditions such as weight, a range of 1 to 40 degrees is preferable. When the inclination angle is less than 1 degree, the effect of improving the feeding speed and the sorting processing efficiency of the parts becomes insufficient. On the other hand, when the inclination angle becomes excessively larger than 40 degrees, the parts rotate on the rollers. Since the rate of sliding down by its own weight without doing so increases, the sorting operation becomes difficult.
【００１８】また、一対の選別ローラの外周面の表面粗
さが相互に異なるように構成することにより、表面粗さ
がより粗い選別ローラの回転方向とは逆方向の回転力を
部品に付与することができる。Further, by configuring the outer peripheral surfaces of the pair of sorting rollers to be different from each other in surface roughness, a rotational force in a direction opposite to the rotating direction of the sorting roller having a rougher surface roughness is applied to the component. be able to.
【００１９】上記構成に係る部品形状選別装置によれ
ば、一対の選別ローラの回転軸が相互に平行となるよう
に配置されているため、非平行である従来例と比較して
選別ローラへの動力伝達機構が簡素化され、選別ローラ
間の隙間も平行となり高精度な加工処理は必要としな
い。According to the component shape sorting apparatus having the above-described structure, the rotation axes of the pair of sorting rollers are arranged so as to be parallel to each other. The power transmission mechanism is simplified and the gap between the sorting rollers is parallel, so that high-precision processing is not required.
【００２０】特に、一対の選別ローラの外周面の周速が
相互に異なるように構成されているため、部品の送り出
し方向の回転力と、その直角方向の回転力を付与するこ
とが可能となり、上記２つの回転力の複合効果により部
品はスパイラル状に全ての方向に回転しながら転動す
る。そのため、部品の各方向の寸法形状が選別の基準と
なり、部品の選別精度を大幅に向上させることができ
る。In particular, since the peripheral speeds of the outer peripheral surfaces of the pair of sorting rollers are configured to be different from each other, it is possible to apply a rotational force in the direction in which the components are delivered and a rotational force in the direction perpendicular thereto. Due to the combined effect of the two rotational forces, the component rolls while rotating in all directions in a spiral shape. Therefore, the dimensions and shapes of the components in each direction serve as criteria for sorting, and the sorting accuracy of the components can be greatly improved.
【００２１】[0021]
【発明の実施の形態】次に、本発明の実施形態について
添付図面を参照してより具体的に説明する。Next, an embodiment of the present invention will be described more specifically with reference to the accompanying drawings.
【００２２】図１は本発明に係る部品形状選別装置１ａ
の一実施例を示す平面図であり、図２はその側面図であ
る。すなわち、本実施例に係る部品形状選別装置１ａ
は、一対の選別ローラＲ１，Ｒ２を、その回転軸Ｌ１，
Ｌ２が相互に平行または平行移動自在となるように基台
３上に回転自在に配置し、一方の選別ローラＲ１には、
図３に示すように外径が異なる３箇所の選別エリアＡ
１，Ａ２，Ａ３が軸方向に沿って形成され、一対の選別
ローラＲ１，Ｒ２の間隙部の一端に多数のベアリングボ
ール部品２を順次供給し、選別ローラＲ１，Ｒ２の回転
力によって各部品２を転動させながら間隙部の他端方向
に送り出し、各選別エリアＡ１〜Ａ３における一対の選
別ローラＲ１，Ｒ２の外周面の間隙の大小によって各部
品２の形状を選別するように構成するとともに、図５に
示すように、上記一対の選別ローラＲ１，Ｒ２の外周面
の周速Ｖ１，Ｖ２が相互に異なるように構成されてい
る。FIG. 1 shows a component shape sorting apparatus 1a according to the present invention.
FIG. 2 is a plan view showing one embodiment, and FIG. 2 is a side view thereof. That is, the component shape sorting device 1a according to the present embodiment
Sets a pair of sorting rollers R1 and R2 to their rotation axes L1 and R2
L2 is rotatably disposed on the base 3 so as to be parallel or movable in parallel with each other.
As shown in FIG. 3, three sorting areas A having different outer diameters
1, A2, A3 are formed along the axial direction, and a number of bearing ball components 2 are sequentially supplied to one end of a gap between a pair of sorting rollers R1, R2, and each component 2 is rotated by the rotational force of the sorting rollers R1, R2. Is rolled out and sent in the other end direction of the gap, and the configuration of each part 2 is selected according to the size of the gap between the outer peripheral surfaces of the pair of selection rollers R1 and R2 in each of the selection areas A1 to A3. As shown in FIG. 5, the pair of sorting rollers R1 and R2 are configured such that the peripheral speeds V1 and V2 of the outer peripheral surfaces thereof are different from each other.
【００２３】また、図２および図４に示すように、一対
の選別ローラＲ１，Ｒ２の回転軸Ｌ１，Ｌ２は水平面に
対して所定の傾斜角度θをもって傾斜して構成される。
この傾斜角度θは１〜４０度の範囲に設定される。As shown in FIGS. 2 and 4, the rotation axes L1 and L2 of the pair of selection rollers R1 and R2 are inclined at a predetermined inclination angle θ with respect to the horizontal plane.
Is set in the range of 1 to 40 degrees.
【００２４】さらに、図３に示すように、複数（３箇
所）の選別エリアＡ１〜Ａ３は、一方の選別ローラＲ１
の外径を軸方向に段階的に変えて形成されている。すな
わち隣接する選別エリアの境界に所定の段差ｇ１，ｇ２
を形成している。一対の選別ローラＲ１，Ｒ２はその両
端部においてローラ支持材４を介して基台３上に回転自
在に固定されている。各選別ローラＲ１，Ｒ２はベルト
車に掛けられたタイミングベルト５を介してそれぞれの
無段変速モータ６の出力軸に接続され、各選別ローラＲ
１，Ｒ２の回転速度が個別に調整できるように構成され
ている。Further, as shown in FIG. 3, a plurality of (three) sorting areas A1 to A3 are provided with one sorting roller R1.
Is formed by changing the outer diameter stepwise in the axial direction. That is, predetermined steps g1, g2
Is formed. A pair of sorting rollers R1 and R2 are rotatably fixed on the base 3 via roller support members 4 at both ends. Each of the sorting rollers R1 and R2 is connected to an output shaft of a respective continuously variable transmission motor 6 via a timing belt 5 wound around a belt wheel, and each of the sorting rollers R
The configuration is such that the rotation speeds of R1 and R2 can be adjusted individually.
【００２５】また、一対の選別ローラＲ１，Ｒ２に設け
られた各選別エリアＡ１〜Ａ３の下部には、それぞれ過
小部品や欠け不良部品を回収する過小部品回収ホッパー
７と、適正な寸法形状を有する規格部品を回収する規格
部品回収ホッパー８と、寸法が過大な部品を回収する過
大部品回収ホッパー９とが対応して付設されている。各
回収ホッパー７〜９の排出孔下部には回収容器１０ａ〜
１０ｃが配置されている。また、基台３上に配置された
選別ローラＲ１，Ｒ２、無段変速モータ６等の防塵対策
として、ポリカーボネート（ＰＣ）等の透明な樹脂板か
ら成るケーシング１１が基台３に被着されている。Further, under the respective sorting areas A1 to A3 provided on the pair of sorting rollers R1 and R2, an undersized component collecting hopper 7 for collecting an undersized component and a chipped defective component respectively has an appropriate size and shape. A standard component collection hopper 8 for collecting standard components and an excessive component collection hopper 9 for collecting components having excessive dimensions are provided correspondingly. At the lower part of the discharge holes of the collection hoppers 7 to 9, the collection containers 10a to
10c is arranged. As a dust-proof measure against the sorting rollers R1 and R2, the continuously variable transmission motor 6 and the like disposed on the base 3, a casing 11 made of a transparent resin plate such as polycarbonate (PC) is attached to the base 3. I have.
【００２６】上記実施例に係る部品形状選別装置１ａを
使用して部品２としてのベアリングボールの形状を選別
する操作は以下の通りである。まず、無段変速モータ
（ギアードモータ）６，６の回転速度を調整して、図５
に示すように、一対の選別ローラＲ１，Ｒ２を相互に逆
方向に外側に回転させるとともに、選別ローラＲ１の周
速Ｖ１が選別ローラＲ２の周速Ｖ２よりも大きくなるよ
うに調整する。このとき、一対の選別ローラＲ１，Ｒ２
の外周面の好適な周速は、部品の重量や代表寸法（外
径）等により異なるが、双方のローラ間において数倍、
例えば２〜５倍程度の差を生じるような周速に調整する
ことが好ましい。なお、部品に所定の方向の回転力を付
与するとともに、部品の円滑な転動を実現するために、
一対の選別ローラを共に必ず回転させることが重要であ
る。The operation of selecting the shape of the bearing ball as the component 2 using the component shape selecting device 1a according to the above embodiment is as follows. First, the rotational speeds of the continuously variable transmission motors (geared motors) 6 and 6 are adjusted, and FIG.
As shown in (2), the pair of sorting rollers R1 and R2 are rotated outward in opposite directions to each other, and the peripheral speed V1 of the sorting roller R1 is adjusted to be higher than the peripheral speed V2 of the sorting roller R2. At this time, a pair of sorting rollers R1, R2
The suitable peripheral speed of the outer peripheral surface of the roller varies depending on the weight and the representative dimension (outer diameter) of the parts, but is several times larger between the two rollers.
For example, it is preferable to adjust the peripheral speed so as to cause a difference of about 2 to 5 times. In addition, in order to apply a rotational force in a predetermined direction to the component and to realize smooth rolling of the component,
It is important that the pair of sorting rollers be rotated together.
【００２７】次に、図１および図２に示すように、部品
貯留槽１２に貯留した部品２（ベアリングボール）を、
選別ローラＲ１，Ｒ２の左端側に連続的に供給する。Next, as shown in FIGS. 1 and 2, the components 2 (bearing balls) stored in the component storage tank 12 are
It is continuously supplied to the left ends of the sorting rollers R1 and R2.
【００２８】一対の選別ローラＲ１，Ｒ２間に投入され
た部品２は、図４に示すように、傾斜した選別ローラＲ
１，Ｒ２上を自重で転がり落ちる際に、ローラの軸直角
方向を回転軸とする回転力を受けＳ２方向に回転すると
同時に、図５に示すように、より速い周速Ｖ１で回転す
る選別ローラＲ１により、選別ローラＲ１の回転方向と
は逆方向の回転力を受けＳ１方向に回転する。The part 2 inserted between the pair of sorting rollers R1 and R2 is, as shown in FIG.
1, when the rolling off under its own weight on R2, and at the same time rotating the direction perpendicular to the axis of the roller in the S 2 direction receives the rotational force to the rotary shaft, as shown in FIG. 5, sorting rotating at a faster peripheral speed V1 the rollers R1, the rotational direction of the sorting roller R1 rotates in the S 1 direction receives the rotational force in the opposite direction.
【００２９】すなわち、図５に示すように、一対の選別
Ｒ１，Ｒ２の周速が異なるため、各選別ローラＲ１，Ｒ
２の表面と部品２との接触部での接触抵抗（摩擦係数μ
１，μ２）が異なることとなり、相対的に接触抵抗が高
く周速が速い方の選別ローラＲ１と逆方向Ｓ１の回転力
が付与される。That is, as shown in FIG. 5, since the peripheral speeds of the pair of selection rollers R1 and R2 are different, each of the selection rollers R1 and R2
Resistance (the coefficient of friction μ)
1, .mu.2) becomes differ, the rotational force relatively the contact resistance is high circumferential speed and faster sorting roller R1 reverse S 1 is being applied.
【００３０】そして、前記、部品が転がり落ちる際の回
転力は、一方の選別ローラＲ１から付与される回転力と
の複合化により、部品２は、あらゆる方向にスパイラル
状に回転転動しながら、他端側に移動する。したがっ
て、部品２の全表面が一対の選別ローラＲ１，Ｒ２によ
って万遍無く接触されることとなり、部品の各方向にお
ける寸法形状が選別基準となり、各部品２はその寸法形
状に応じて各選別エリアＡ１〜Ａ３の隙間から下方に落
下し、区分選別される。The rotational force when the component rolls down is combined with the rotational force applied from one of the sorting rollers R1, so that the component 2 rotates and rolls in all directions in a spiral shape. Move to the other end. Therefore, the entire surface of the component 2 is uniformly contacted by the pair of sorting rollers R1 and R2, and the dimension and shape in each direction of the component serve as a sorting criterion. It falls down from the gap of A1 to A3 and is sorted and sorted.
【００３１】すなわち、図７（ａ）に示すような欠けを
生じた部品２ａ、正規の直径ｄ１を有する方向の寸法の
みならず、欠けを生じた方向の寸法ｄ２をも選別の対象
とされ、過小な寸法ｄ２が検出された位置で、狭い隙間
を有する選別エリアＡ１の隙間を通り、下方に落下す
る。一方、規定の寸法形状を有する部品２は、所定の公
差範囲内の隙間を有する選別エリアＡ２で選別分離され
る。一方、図７（ｂ），（ｃ）に示すような粗大な部品
２ｂ，２ｃは、広い隙間を有する選別エリアＡ３で初め
て分離される。選別分離された各部品２，２ａ〜２ｃ
は、それぞれの回収ホッパー７〜９を経て、回収容器１
０ａ〜１０ｃ内に回収される。[0031] That is, parts 2a resulted chipping as shown in FIG. 7 (a), not only the dimensions with a diameter d 1 of the normal, and the target selection also dimension d 2 which resulted in chipping It is, in under-dimension d 2 is detected positions, through the gap of the sorting area A1 having a narrow gap, drops downward. On the other hand, the component 2 having a specified size and shape is sorted and separated in a sorting area A2 having a gap within a predetermined tolerance range. On the other hand, coarse components 2b and 2c as shown in FIGS. 7B and 7C are separated for the first time in a sorting area A3 having a wide gap. Sorted and separated parts 2, 2a to 2c
Is passed through the respective collection hoppers 7 to 9 to form the collection container 1
It is collected within 0a to 10c.
【００３２】上記実施例に係る部品形状選別装置１ａに
よれば、一対の選別ローラＲ１，Ｒ２の回転軸Ｌ１，Ｌ
２が相互に平行または平行移動自在となるように配置さ
れているため、非平行である従来例と比較して選別ロー
ラＲ１，Ｒ２への動力伝達機構が簡素化され、選別ロー
ラＲ１，Ｒ２間の隙間も平行となり、その調整操作も容
易であり、かつ隙間を形成するための高精度な加工処理
は必要としない。したがって、選別装置を簡素な構成
で、しかも安価に製造することができる。According to the component shape sorting apparatus 1a according to the embodiment, the rotation axes L1, L2 of the pair of sorting rollers R1, R2 are used.
2 are arranged so that they can move in parallel or parallel to each other, the power transmission mechanism to the sorting rollers R1 and R2 is simplified as compared with the non-parallel conventional example. Are also parallel, the adjustment operation is easy, and high-precision processing for forming the gap is not required. Therefore, the sorting device can be manufactured with a simple configuration and at a low cost.
【００３３】特に、一対の選別ローラの外周面の周速Ｖ
１，Ｖ２が相互に異なるように構成されているため、部
品２の送り出し方向Ｓ２の回転力と、その直角方向Ｓ１
の回転力とを付与することが可能となり、上記２つの回
転力の複合効果により部品２はスパイラル状に全ての方
向に回転しながら転動する。そのため、部品２の各方向
の寸法形状が選別の基準となり、部品２の選別効率およ
び選別精度を大幅に向上させることができた。In particular, the peripheral speed V on the outer peripheral surface of the pair of sorting rollers
1, V2 because is configured differently from each other, and the rotational force in the direction S 2 feeding part 2, a direction perpendicular thereto S 1
And the component 2 rolls in a spiral manner while rotating in all directions due to the combined effect of the two rotational forces. For this reason, the dimensions and shapes of the component 2 in each direction serve as criteria for sorting, and the sorting efficiency and sorting accuracy of the component 2 can be significantly improved.
【００３４】なお、本実施例においては、直径が２〜３
ｍｍで重量が２５〜５５ｍｇのＳｉ ３Ｎ４焼結体から成
るベアリングボールを部品２として選別処理にした例で
示しているが、平均的に１０００個／ｍｉｎ以上の選別
速度が得られた。また、図６に示すような従来の選別装
置を使用して部品の選別行った場合には、各選別エリア
の境界部が不明瞭であり、選別処理後に改めて目視検査
による不良部品の摘出が必要であったが、本実施例に係
る選別装置によって処理した後には、上記不良品の摘出
作業は殆ど不要となった。そして、選別ローラの隙間の
調整作業等も含め、従来方式と比較すると、本実施例に
係る選別装置を使用すると検査工数を６０％以上と大幅
に低減できるとことが判明した。In this embodiment, the diameter is 2-3.
25-55mg Si in mm 3N4Made of sintered body
In this example, the bearing ball is sorted as part 2
As shown, sorting on average 1000 pieces / min or more
Speed was obtained. In addition, a conventional sorting device as shown in FIG.
If parts are sorted using the
Boundary is unclear, visual inspection after sorting process
It was necessary to remove defective parts by using
After processing by the sorting device,
Almost no work was required. And the clearance of the sorting roller
In comparison with the conventional method, including adjustment work, this embodiment
Inspection time is over 60% when using such a sorting machine
It was found that it could be reduced.
【００３５】[0035]
【発明の効果】以上説明したように、本発明に係る部品
形状選別装置によれば、一対の選別ローラの回転軸が相
互に平行となるように配置されているため、非平行であ
る従来例と比較して選別ローラへの動力伝達機構が簡素
化され、選別ローラ間の隙間も平行となり高精度な加工
処理は必要としない。As described above, according to the component shape sorting apparatus according to the present invention, since the rotating shafts of the pair of sorting rollers are arranged so as to be parallel to each other, they are non-parallel. The power transmission mechanism to the sorting rollers is simplified, and the gap between the sorting rollers is parallel, so that high-precision processing is not required.
【００３６】特に、一対の選別ローラの外周面の周速が
相互に異なるように構成されているため、部品の送り出
し方向の回転力と、その直角方向の回転力を付与するこ
とが可能となり、上記２つの回転力の複合効果により部
品はスパイラル状に全ての方向に回転しながら転動す
る。そのため、部品の各方向の寸法形状が選別の基準と
なり、部品の選別精度を大幅に向上させることができ
る。In particular, since the peripheral speeds of the outer peripheral surfaces of the pair of sorting rollers are configured to be different from each other, it is possible to apply a rotational force in a component sending direction and a rotational force in a direction perpendicular thereto. Due to the combined effect of the two rotational forces, the component rolls while rotating in all directions in a spiral shape. Therefore, the dimensions and shapes of the components in each direction serve as criteria for sorting, and the sorting accuracy of the components can be greatly improved.
【図１】本発明に係る部品形状選別装置の一実施例を示
す平面図。FIG. 1 is a plan view showing an embodiment of a component shape sorting apparatus according to the present invention.
【図２】図１に示す部品形状選別装置の側面図。FIG. 2 is a side view of the component shape sorting device shown in FIG.
【図３】図１に示す部品形状選別装置の選別ローラの形
状例を示す平面図。FIG. 3 is a plan view showing a shape example of a sorting roller of the component shape sorting device shown in FIG.
【図４】選別ローラを傾斜させたときの部品の回転方向
を示す側面図。FIG. 4 is a side view showing the rotation direction of the component when the sorting roller is inclined.
【図５】図３におけるＶ−Ｖ矢視断面図。FIG. 5 is a sectional view taken along the line VV in FIG. 3;
【図６】従来の部品形状選別装置の基本構成を示す平面
図。FIG. 6 is a plan view showing a basic configuration of a conventional component shape selection device.
【図７】部品としてのベアリングボールの形状例を示す
斜視図であり、（ａ）は，欠けを生じた不良部品，
（ｂ）は２個のボールが一体化した不良部品，（ｃ）は
楕円状に形成された不良部品をそれぞれ示す。FIGS. 7A and 7B are perspective views showing examples of the shape of a bearing ball as a part. FIG.
(B) shows a defective component in which two balls are integrated, and (c) shows a defective component formed in an elliptical shape.
１，１ａ 部品形状選別装置 ２，２ａ，２ｂ，２ｃ 部品（ベアリングボール） ３ 基台 ４ ローラ支持部材 ５ タイミングベルト ６ 無段変速モータ ７ 過小部品回収ホッパー ８ 規格部品回収ホッパー ９ 過大部品回収ホッパー １０ａ，１０ｂ，１０ｃ 回収容器 １１ ケーシング １２ 部品貯留槽 ｒ１，ｒ２，Ｒ１，Ｒ２ 選別ローラ Ｌ１，Ｌ２ ローラ回転軸 Ａ１，Ａ２，Ａ３ 選別エリア Ｈ 水平面 Ｖ１，Ｖ２ ローラ周速 θ 傾斜角度 ｇ１，ｇ２ 段差 Ｓ１，Ｓ２ 回転方向 μ１，μ２ 摩擦係数Reference Signs List 1, 1a Component shape sorting device 2, 2a, 2b, 2c Components (bearing balls) 3 Base 4 Roller support member 5 Timing belt 6 Continuously variable speed motor 7 Undersized component collection hopper 8 Standard component collection hopper 9 Excessive component collection hopper 10a , 10b, 10c Collection container 11 Casing 12 Parts storage tank r1, r2, R1, R2 Sorting roller L1, L2 Roller rotation axis A1, A2, A3 Sorting area H Horizontal plane V1, V2 Roller peripheral speed θ Tilt angle g1, g2 Step S 1, S 2 rotation direction .mu.1, .mu.2 friction coefficient
Claims (7)
に平行となるように基台上に回転自在に配置し、少なく
とも一方の選別ローラには外径が異なる複数の選別エリ
アが軸方向に沿って形成され、一対の選別ローラの間隙
部の一端に多数の部品を順次供給し、選別ローラの回転
力によって各部品を転動させながら間隙部の他端方向に
送り出し、各選別エリアにおける一対の選別ローラの外
周面の間隙の大小によって各部品の形状を選別するよう
に構成するとともに、上記一対の選別ローラの外周面の
周速が相互に異なるように構成したことを特徴とする部
品形状選別装置。1. A pair of sorting rollers are rotatably arranged on a base such that their rotation axes are parallel to each other, and at least one of the sorting rollers has a plurality of sorting areas having different outer diameters in an axial direction. Is formed along, and a number of parts are sequentially supplied to one end of the gap between the pair of sorting rollers, and are sent out toward the other end of the gap while rolling each part by the rotating force of the sorting roller. A component characterized in that the shape of each component is selected according to the size of the gap between the outer peripheral surfaces of the pair of sorting rollers, and the peripheral speeds of the outer peripheral surfaces of the pair of sorting rollers are different from each other. Shape sorter.
選別ローラの外径を軸方向に段階的に変えて形成されて
いることを特徴とする請求項１記載の部品形状選別装
置。2. The component shape sorting apparatus according to claim 1, wherein the plurality of sorting areas are formed by changing the outer diameter of at least one sorting roller in the axial direction in a stepwise manner.
して所定の傾斜角度をもって傾斜していることを特徴と
する請求項１記載の部品形状選別装置。3. The component shape selection device according to claim 1, wherein the rotation axes of the pair of selection rollers are inclined at a predetermined inclination angle with respect to a horizontal plane.
を特徴とする請求項３記載の部品形状選別装置。4. The apparatus according to claim 3, wherein the inclination angle is in a range of 1 to 40 degrees.
とする請求項１記載の部品形状選別装置。5. The component shape sorting apparatus according to claim 1, wherein the component is a substantially spherical component.
相互に異なることを特徴とする請求項１記載の部品形状
選別装置。6. The component shape sorting device according to claim 1, wherein the surface roughness of the outer peripheral surfaces of the pair of sorting rollers is different from each other.
方の選別ローラに対して平行移動自在に構成したことを
特徴とする請求項１記載の部品形状選別装置。7. The component shape sorting device according to claim 1, wherein at least one of the pair of sorting rollers is configured to be freely movable in parallel with respect to the other sorting roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31278399A JP4231605B2 (en) | 1999-11-02 | 1999-11-02 | Part shape sorter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31278399A JP4231605B2 (en) | 1999-11-02 | 1999-11-02 | Part shape sorter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001129486A true JP2001129486A (en) | 2001-05-15 |
| JP4231605B2 JP4231605B2 (en) | 2009-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31278399A Expired - Lifetime JP4231605B2 (en) | 1999-11-02 | 1999-11-02 | Part shape sorter |
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| JP (1) | JP4231605B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004141870A (en) * | 2002-10-24 | 2004-05-20 | Robert Bosch Gmbh | Device for excluding defective part |
| JP2010174330A (en) * | 2009-01-29 | 2010-08-12 | Kobe Steel Ltd | Method for sifting out green pellets with roller screen |
| CN102218402A (en) * | 2011-04-21 | 2011-10-19 | 东南大学 | Device for automatically sorting diameters of ball bearings |
| CN103041990A (en) * | 2013-01-24 | 2013-04-17 | 五莲博大光电科技有限公司 | Steel ball sorting machine |
| CN104117422A (en) * | 2014-08-09 | 2014-10-29 | 宁国东方碾磨材料股份有限公司 | Quantitative steel ball packaging machine |
| WO2015068267A1 (en) * | 2013-11-08 | 2015-05-14 | Ykk株式会社 | Sorting machine |
| CN109675882A (en) * | 2018-12-29 | 2019-04-26 | 宁波科尼管洁净科技有限公司 | Pipe rotating wash bowl circulator and its working method |
| CN110293069A (en) * | 2019-08-07 | 2019-10-01 | 芜湖市宇恒特种钢球有限公司 | High-accuracy abrasion-proof steel ball high throughput screening devices and its operating method |
| CN116851338A (en) * | 2023-09-04 | 2023-10-10 | 浩宸建设科技有限公司 | Stone washing and mud removing device for highway engineering construction |
| CN117900133A (en) * | 2024-03-19 | 2024-04-19 | 山东金池重工股份有限公司 | Screening device for grinding steel ball production |
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1999
- 1999-11-02 JP JP31278399A patent/JP4231605B2/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004141870A (en) * | 2002-10-24 | 2004-05-20 | Robert Bosch Gmbh | Device for excluding defective part |
| JP2010174330A (en) * | 2009-01-29 | 2010-08-12 | Kobe Steel Ltd | Method for sifting out green pellets with roller screen |
| CN102218402A (en) * | 2011-04-21 | 2011-10-19 | 东南大学 | Device for automatically sorting diameters of ball bearings |
| CN103041990A (en) * | 2013-01-24 | 2013-04-17 | 五莲博大光电科技有限公司 | Steel ball sorting machine |
| CN105188964A (en) * | 2013-11-08 | 2015-12-23 | Ykk株式会社 | Sorting machine |
| WO2015068267A1 (en) * | 2013-11-08 | 2015-05-14 | Ykk株式会社 | Sorting machine |
| CN104117422A (en) * | 2014-08-09 | 2014-10-29 | 宁国东方碾磨材料股份有限公司 | Quantitative steel ball packaging machine |
| CN109675882A (en) * | 2018-12-29 | 2019-04-26 | 宁波科尼管洁净科技有限公司 | Pipe rotating wash bowl circulator and its working method |
| CN109675882B (en) * | 2018-12-29 | 2022-04-01 | 宁波科尼管洁净科技有限公司 | Pipe cleaning ball circulating device and working method thereof |
| CN110293069A (en) * | 2019-08-07 | 2019-10-01 | 芜湖市宇恒特种钢球有限公司 | High-accuracy abrasion-proof steel ball high throughput screening devices and its operating method |
| CN116851338A (en) * | 2023-09-04 | 2023-10-10 | 浩宸建设科技有限公司 | Stone washing and mud removing device for highway engineering construction |
| CN116851338B (en) * | 2023-09-04 | 2023-11-17 | 浩宸建设科技有限公司 | Stone washing and mud removing device for highway engineering construction |
| CN117900133A (en) * | 2024-03-19 | 2024-04-19 | 山东金池重工股份有限公司 | Screening device for grinding steel ball production |
| CN117900133B (en) * | 2024-03-19 | 2024-05-14 | 山东金池重工股份有限公司 | Screening device for grinding steel ball production |
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