JP2006343291A

JP2006343291A - Outside diameter measuring device

Info

Publication number: JP2006343291A
Application number: JP2005171476A
Authority: JP
Inventors: Masahiro Takagi; 正弘高木
Original assignee: KAMIJIMA DENKOSHA CO Ltd
Current assignee: KAMIJIMA DENKOSHA CO Ltd
Priority date: 2005-06-10
Filing date: 2005-06-10
Publication date: 2006-12-21

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outside diameter measuring device, capable of measuring outer diameter of test objects processed cylindrically at a high speed and with sufficient accuracy, and moreover, when altering to measurement of the outside diameter of test objects the length is only different, capable of enhancing workability by simplifying the arrangements. <P>SOLUTION: The outside diameter measuring device is equipped with a V-shaped chute 9 conveying test objects processed cylindrically, while supporting two lateral faces of the test objects to the one direction, aligning them continuously along the length direction, an outside diameter measuring means (15a and 15b), where a slit 12 is prepared extending perpendicular to the extending direction of the V-shaped chute 9 concerned, while irradiating light zonally to the radial direction of the test objects conveyed with the V-shaped chute 9 concerned, the outside diameter of the test objects is measured in a noncontact fashion, based on the transmitted light, and an ejecting means (14a and 14b) ejecting the test objects the outside diameter is measured by the measuring means concerned, while cutting off at a fixed speed to a terminal side of the V-shaped chute 9. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、円柱状に加工された被測定物の外径を高速且つ高精度で測定し得る外径測定装置に関するものである。 The present invention relates to an outer diameter measuring apparatus that can measure the outer diameter of a workpiece processed into a cylindrical shape at high speed and with high accuracy.

例えばローラベアリングなどに複数内在される軸受用ローラは、外径及び長さが所定寸法に管理された円柱状金属部材から成り、特にその外径は、軸受に内在された際の、外輪と内輪とのクリアランスを一定に保持させる観点から、高精度に測定して等級毎に選別しておく必要がある。このような円柱状に加工された被測定物における外径の測定は、従来、測定のための接触子を被測定物の側面に当接させるとともに、当該接触子の移動量を電気マイクロメータやレーザセンサ等により測定することにより行われていた For example, a plurality of bearing rollers included in a roller bearing or the like are made of a cylindrical metal member whose outer diameter and length are controlled to predetermined dimensions. In particular, the outer diameter of the outer roller and the inner ring when they are included in the bearing From the viewpoint of maintaining a constant clearance, it is necessary to measure with high accuracy and sort by grade. The measurement of the outer diameter of the object to be measured processed into such a columnar shape has conventionally been made by bringing a contact for measurement into contact with the side surface of the object to be measured and the amount of movement of the contact with an electric micrometer or It was done by measuring with a laser sensor etc.

より具体的には、被測定物の側面が測定装置の所定壁面に当接した状態となるまでプッシャ等にて搬送し、位置決めした後、壁面と接触した側面と対向する側面に対して接触子を接触させ、当該接触子の原点位置から接触位置までの移動量に基づき、被測定物の外径を測定していた。そして、再びプッシャ等により測定位置から排出させ、測定結果に応じた選別（等級分け）を行っていた。尚、かかる先行技術は、文献公知発明に係るものでないため、記載すべき先行技術文献情報はない。 More specifically, after the position of the object to be measured is conveyed with a pusher or the like until the side surface of the measuring device comes into contact with a predetermined wall surface, positioning is performed, and the contact with respect to the side surface facing the side surface in contact with the wall surface And the outer diameter of the object to be measured was measured based on the amount of movement of the contact from the origin position to the contact position. Then, it is discharged again from the measurement position by a pusher or the like, and sorting (grading) according to the measurement result is performed. In addition, since this prior art does not relate to the literature known invention, there is no prior art document information to be described.

しかしながら、上記従来の外径測定装置においては、被測定物の位置決め及び排出がプッシャ等により行われるため、外径測定を高速に行うのが困難であるという問題があった。即ち、壁面への当接を行って位置決めされた被測定物は、暫く振動してしまうことから、被測定物の姿勢が安定するまでの時間が必要であるとともに、被測定物の位置決め、外径測定及び排出といった一連の動作を独立して行わせることから、高速化には限界があった。 However, the conventional outer diameter measuring apparatus has a problem that it is difficult to measure the outer diameter at high speed because the object to be measured is positioned and discharged by a pusher or the like. In other words, the object to be measured that is positioned by contacting the wall surface vibrates for a while, so that it takes time to stabilize the posture of the object to be measured. Since a series of operations such as diameter measurement and discharge are performed independently, there is a limit to speeding up.

一方、外径を変更せず長さのみが異なる被測定物を同一の外径測定装置で測定しようとした場合、接触子や治具の設置位置など装置構成を大幅に変更しなくてはならず、段取りに時間がかかってしまうという問題もあった。また、上記従来のものは、測定子や壁面を被測定物に当接及び接触させる必要があることから、測定部周辺の温度変化による機械ひずみや当接又は接触部位の摩耗等による経時変化が生じた場合、精度よく外径を測定することが困難であるという問題もあった。 On the other hand, if the same outer diameter measuring device is used to measure an object with a different length without changing the outer diameter, the device configuration, such as the position of the contacts and jigs, must be changed significantly. In addition, there was a problem that it took time for setup. In addition, since the conventional device needs to contact and contact the measuring element or wall surface with the object to be measured, there is a change over time due to mechanical strain due to a temperature change around the measurement unit or contact or wear of the contact portion. When it occurs, there is also a problem that it is difficult to accurately measure the outer diameter.

本発明は、このような事情に鑑みてなされたもので、円柱状に加工された被測定物の外径を高速且つ精度良く行わせることができるとともに、長さのみが異なる被測定物の外径の測定に変更する際、その段取りを簡素化して作業性を向上させることができる外径測定装置を提供することにある。 The present invention has been made in view of such circumstances, and can make the outer diameter of a measured object processed into a columnar shape at a high speed and with high accuracy, and can be applied to the outside of the measured object only in length. An object of the present invention is to provide an outer diameter measuring apparatus capable of improving the workability by simplifying the setup when changing to the diameter measurement.

請求項１記載の発明は、円柱状に加工された被測定物の２側面を支持し、その長さ方向に連続的に整列させつつ一方向に搬送可能なＶ型シュートと、該Ｖ型シュートの延設方向に対して垂直方向に延びるスリットを設け、当該Ｖ型シュートにて搬送される被測定物の径方向に対して帯状に光を照射するとともに、その透過光に基づき非接触にて被測定物の外径を測定する外径測定手段と、該測定手段で外径が測定された被測定物を切り離しつつ前記Ｖ型シュートの終端側へ一定速度で排出手段とを具備したことを特徴とする。 According to the first aspect of the present invention, there is provided a V-type chute that supports two side surfaces of an object processed into a cylindrical shape and can be conveyed in one direction while being continuously aligned in the length direction thereof, and the V-type chute A slit extending in a direction perpendicular to the extending direction is provided to irradiate light in a strip shape with respect to the radial direction of the object to be measured conveyed by the V-shaped chute and non-contact based on the transmitted light. An outer diameter measuring means for measuring the outer diameter of the object to be measured; and a discharging means at a constant speed toward the terminal side of the V-shaped chute while separating the object to be measured whose outer diameter was measured by the measuring means. Features.

請求項２記載の発明は、請求項１記載の外径測定装置において、前記Ｖ型シュートの終端側に設けられ、前記排出手段で切り離されつつ送り出しされる被測定物の長さ方向に対して光を照射するとともに、その透過光に基づき非接触にて当該被測定物の長さを測定する長さ測定手段を具備したことを特徴とする。 According to a second aspect of the present invention, in the outer diameter measuring apparatus according to the first aspect, with respect to the length direction of the object to be measured that is provided on the terminal end side of the V-shaped chute and is sent out while being separated by the discharging means. It is characterized by comprising length measuring means for irradiating light and measuring the length of the object to be measured in a non-contact manner based on the transmitted light.

請求項３記載の発明は、請求項１又は請求項２記載の外径測定装置において、前記Ｖ型シュートは、その始端側から終端側へ所定角度で傾斜され、当該始端側に供給された被測定物が終端側へ自重にて滑動可能とされたことを特徴とする。 According to a third aspect of the present invention, in the outer diameter measuring apparatus according to the first or second aspect, the V-shaped chute is inclined at a predetermined angle from the starting end side to the terminal end side and supplied to the starting end side. It is characterized in that the object to be measured can be slid by its own weight toward the end side.

請求項４記載の発明は、請求項１〜請求項３の何れか１つに記載の外径測定において、前記Ｖ型シュートにおける前記外径測定手段より始端側に配設され、当該外径測定手段に対して被測定物を任意速度で送り出し可能とする送り出し手段を具備したことを特徴とする。 According to a fourth aspect of the present invention, in the outer diameter measurement according to any one of the first to third aspects, the outer diameter measurement is arranged on the start end side of the outer diameter measuring means in the V-shaped chute. The present invention is characterized in that a delivery means is provided that enables the object to be measured to be delivered to the means at an arbitrary speed.

請求項５記載の発明は、請求項１〜請求項４の何れか１つに記載の外径測定装置において、前記Ｖ型シュートの搬送面上方であって当該Ｖ型シュートにて搬送される被測定物と微小の隙間を有した位置には、当該被測定物の上下方向の移動を規制する天面ガイドが延設されたことを特徴とする。 According to a fifth aspect of the present invention, in the outer diameter measuring apparatus according to any one of the first to fourth aspects, the object to be conveyed by the V-type chute is above the conveyance surface of the V-type chute. A top guide for restricting the vertical movement of the object to be measured is extended at a position having a minute gap with the object to be measured.

請求項６記載の発明は、請求項１〜請求項５の何れか１つに記載の外径測定装置において、前記Ｖ型シュートの搬送面両側であって前記外径測定手段の位置にある被測定物と微小の隙間を有した位置には、当該被測定物の左右方向の移動を規制する側面ガイドが延設されたことを特徴とする。 A sixth aspect of the present invention is the outer diameter measuring device according to any one of the first to fifth aspects, wherein the outer diameter measuring device is located on both sides of the conveying surface of the V-shaped chute and at the position of the outer diameter measuring means. A side guide for restricting the movement of the object to be measured in the left-right direction is extended at a position having a minute gap with the object to be measured.

請求項７記載の発明は、請求項１〜請求項６の何れか１つに記載の外径測定装置において、Ｖ型シュートの搬送面上方であって前記スリットの前後位置には、それぞれ被測定物に対して一定圧で接触し得る押さえ手段が形成されたことを特徴とする。 The invention according to claim 7 is the outer diameter measuring device according to any one of claims 1 to 6, wherein the device under measurement is located above the conveying surface of the V-shaped chute and at the front and rear positions of the slit. A pressing means capable of contacting an object with a constant pressure is formed.

請求項８記載の発明は、請求項１〜請求項７の何れか１つに記載の外径測定装置において、前記Ｖ型シュート、天面ガイド、側面ガイド又は押さえ手段は、非磁性金属材料から成るとともに、少なくとも被測定物と対向する面に摩擦係数を低減するための表面処理が施されたことを特徴とする。 The invention according to claim 8 is the outer diameter measuring apparatus according to any one of claims 1 to 7, wherein the V-shaped chute, the top surface guide, the side surface guide, or the pressing means is made of a nonmagnetic metal material. In addition, at least the surface facing the object to be measured is subjected to a surface treatment for reducing the friction coefficient.

請求項９記載の発明は、請求項１〜請求項８の何れか１つに記載の外径測定装置において、前記Ｖ型シュートは、その搬送面が左右に分割した構成とされ、被測定物の大きさに応じて当該搬送面が近接又は離間可能とされたことを特徴とする。 The invention according to claim 9 is the outer diameter measuring apparatus according to any one of claims 1 to 8, wherein the V-shaped chute has a structure in which a conveying surface is divided into left and right sides, and an object to be measured The conveyance surface can be brought close to or separated from each other according to the size.

請求項１０記載の発明は、請求項９記載の外径測定装置において、前記Ｖ型シュートは、被測定物の上下方向の移動を規制する天面ガイド、左右方向の移動を規制する側面ガイド、又は被測定物に対して一定圧で接触し得る押さえ手段の被測定物との位置関係を一定に維持するよう移動可能とされたことを特徴とする。 The invention according to claim 10 is the outer diameter measuring apparatus according to claim 9, wherein the V-shaped chute is a top surface guide that restricts the vertical movement of the object to be measured, a side guide that restricts the movement in the left-right direction, Alternatively, it is characterized in that it can be moved so as to maintain a constant positional relationship with the object to be measured of the pressing means that can contact the object to be measured with a constant pressure.

請求項１１記載の発明は、請求項１〜請求項１０の何れか１つに記載の外径測定装置において、前記Ｖ型シュートにおける前記外径測定手段よりも始端側には、長さ、外径又は表面色が設定と比べて著しく異なる被測定物を検出し、当該Ｖ型シュートから取り除く異品排除手段が設けられたことを特徴とする。 The invention according to claim 11 is the outer diameter measuring device according to any one of claims 1 to 10, wherein a length, an outer diameter is provided at a start end side of the outer diameter measuring means in the V-shaped chute. The present invention is characterized in that there is provided a foreign product eliminating means for detecting a measured object whose diameter or surface color is significantly different from the setting and removing it from the V-shaped chute.

請求項１２記載の発明は、請求項１〜請求項１１の何れか１つに記載の外径測定装置において、被測定物を前記Ｖ型シュートの始端側に供給する供給部と、前記排出手段で排出された被測定物を寸法別に選別する選別部とを有した選別装置に適用されるとともに、前記供給部は、被測定物の姿勢を一定に保ちつつ供給する回転フィーダ又は直進フィーダであることを特徴とする。 A twelfth aspect of the present invention is the outer diameter measuring apparatus according to any one of the first to eleventh aspects, wherein the supply unit supplies the object to be measured to the start end side of the V-shaped chute, and the discharge means In addition to being applied to a sorting device having a sorting unit that sorts the object to be measured discharged by the size, the supply unit is a rotary feeder or a linear feeder that feeds the object to be measured while maintaining a constant posture. It is characterized by that.

請求項１３記載の発明は、請求項１２記載の外径測定装置において、前記選別部は、前記排出手段で排出された被測定物を順次受けるためのポケットが周方向に複数形成された円板状部材から成るとともに、各ポケットには、前記外径測定手段で測定された外径に基づき被測定物を所定位置に排出し得るシャッターが設けられたことを特徴とする。 A thirteenth aspect of the present invention is the outer diameter measuring apparatus according to the twelfth aspect of the present invention, wherein the selecting portion is a disc in which a plurality of pockets are formed in the circumferential direction for sequentially receiving the measurement object discharged by the discharging means. Each of the pockets is provided with a shutter capable of discharging an object to be measured to a predetermined position based on the outer diameter measured by the outer diameter measuring means.

請求項１４記載の発明は、請求項１３記載の外径測定装置において、前記排出手段と選別部との間における被測定物の通過を確認し得る通過確認センサと、前記円板状部材の回転位置を検出する回転位置検出センサとを具備するとともに、これら通過確認センサと回転位置検出センサとに基づいてポケットで受けた被測定物を何れの位置で排出すべきかを把握し前記シャッターを制御し得ることを特徴とする。 The invention according to claim 14 is the outer diameter measuring apparatus according to claim 13, wherein a passage confirmation sensor capable of confirming the passage of the object to be measured between the discharging means and the sorting portion, and rotation of the disk-shaped member. A rotation position detection sensor for detecting the position, and based on the passage confirmation sensor and the rotation position detection sensor, the position of the object to be measured received in the pocket is grasped and the shutter is controlled. It is characterized by obtaining.

請求項１の発明によれば、円柱状に加工された被測定物をＶ型シュートで一定方向に搬送する過程において、外径測定手段にて非接触で外径を測定するので、被測定物の外径を高速且つ精度良く行わせることができるとともに、長さのみが異なる被測定物の外径の測定に変更する際、その段取りを簡素化して作業性を向上させることができる。 According to the first aspect of the present invention, since the outer diameter is measured in a non-contact manner by the outer diameter measuring means in the process of conveying the measured object processed into a columnar shape in a fixed direction by the V-shaped chute, the measured object Can be performed at high speed and with high accuracy, and when changing to the measurement of the outer diameter of an object to be measured that differs only in length, the setup can be simplified and workability can be improved.

請求項２の発明によれば、外径測定手段による被測定物の外径の測定に加え、その長さも長さ測定手段にて測定し得るので、例えば選別装置に適用した場合、より細かな選別を図ることができる。 According to the invention of claim 2, in addition to the measurement of the outer diameter of the object to be measured by the outer diameter measuring means, the length can also be measured by the length measuring means. Sorting can be achieved.

請求項３の発明によれば、被測定物がＶ型シュート上を自重にて滑動し得るので、被測定物を搬送するための別個の駆動手段等を不要とすることができ、装置構成をより簡素化することができる。 According to the invention of claim 3, since the object to be measured can slide on the V-type chute by its own weight, it is possible to eliminate the need for a separate driving means for conveying the object to be measured. It can be further simplified.

請求項４の発明によれば、外径測定手段に対して被測定物を任意速度で送り出し可能とする送り出し手段を具備したので、被測定物の外径測定手段への送り出しタイミングと排出手段による排出タイミングとを良好に維持させることができる。 According to the fourth aspect of the present invention, since the device to be measured can be fed to the outer diameter measuring device at an arbitrary speed, the feeding timing to the outer diameter measuring device and the discharging device are used. The discharge timing can be maintained well.

請求項５の発明によれば、Ｖ型シュートの搬送面上方であって当該Ｖ型シュートにて搬送される被測定物と微小の隙間を有した位置に天面ガイドが延設されたので、被測定物の上下方向の移動を規制することができ、被測定物の外径を精度よく測定することができる。 According to the invention of claim 5, since the top surface guide is extended above the conveying surface of the V-shaped chute and at a position having a minute gap with the object to be conveyed by the V-shaped chute, The vertical movement of the device under test can be restricted, and the outer diameter of the device under test can be accurately measured.

請求項６の発明によれば、Ｖ型シュートの搬送面両側であって外径測定手段の位置にある被測定物と微小の隙間を有した位置に側面ガイドが延設されたので、被測定物の左右方向の移動を規制することができ、被測定物の外径を精度よく測定することができる。 According to the sixth aspect of the present invention, the side guides are extended on the both sides of the conveying surface of the V-shaped chute and at a position having a minute gap with the measured object at the position of the outer diameter measuring means. The movement of the object in the left-right direction can be restricted, and the outer diameter of the object to be measured can be accurately measured.

請求項７の発明によれば、Ｖ型シュートの搬送面上方であってスリットの前後位置には、それぞれ被測定物に対して一定圧で接触し得る押さえ手段が形成されたので、スリットの位置で被測定物が上下方向に移動してしまうのを確実に防止することができ、被測定物の外径を更に精度よく測定することができる。 According to the seventh aspect of the present invention, the pressing means that can contact the object to be measured with a constant pressure is formed at the front and rear positions of the slit above the conveying surface of the V-shaped chute. Thus, the object to be measured can be reliably prevented from moving in the vertical direction, and the outer diameter of the object to be measured can be measured with higher accuracy.

請求項８の発明によれば、Ｖ型シュート、天面ガイド、側面ガイド又は押さえ手段が非磁性金属材料から成るとともに、少なくとも被測定物と対向する面に摩擦係数を低減するための表面処理が施されたので、これら構成要素と被測定物とが干渉して当該測定物が磁化されてしまうのを防止することができる。 According to the invention of claim 8, the V-type chute, the top surface guide, the side surface guide or the pressing means is made of a nonmagnetic metal material, and at least the surface treatment for reducing the friction coefficient on the surface facing the object to be measured is performed. Therefore, it is possible to prevent these components from being magnetized due to interference between these components and the device under test.

請求項９の発明によれば、Ｖ型シュートは、その搬送面が左右に分割した構成とされ、被測定物の大きさに応じて当該搬送面が近接又は離間可能とされたので、種々の被測定物の外径測定に容易に対応することができるとともに、大きさが異なる被測定物に変更する際、その段取りを簡素化することができる。 According to the invention of claim 9, the V-shaped chute has a structure in which the conveyance surface is divided into right and left, and the conveyance surface can be moved close to or away from each other according to the size of the object to be measured. It is possible to easily cope with the measurement of the outer diameter of the object to be measured, and to simplify the setup when changing to the object to be measured having a different size.

請求項１０の発明によれば、被測定物の大きさに応じて左右分割された搬送面が近接又は離間可能なＶ型シュートは、被測定物の上下方向の移動を規制する天面ガイド、左右方向の移動を規制する側面ガイド、又は被測定物に対して一定圧で接触し得る押さえ手段の被測定物との位置関係を一定に維持するよう移動可能とされたので、Ｖ型シュートの移動に伴ってこれら構成要素の位置関係を改めて調整する必要がなくなり、段取りを更に簡素化することができる。 According to the invention of claim 10, the V-shaped chute in which the conveyance surface divided according to the size of the object to be measured can approach or separate is a top surface guide that regulates the vertical movement of the object to be measured, Since the side guide that restricts the movement in the left-right direction or the holding means that can come into contact with the object to be measured at a constant pressure is movable so as to maintain a constant positional relationship with the object to be measured, It is not necessary to adjust the positional relationship of these components with the movement, and the setup can be further simplified.

請求項１１の発明によれば、異品排除手段で異品と検出された被測定物をＶ型シュートから取り除くことができるので、外径測定手段にて当該異品の測定を行ってしまう手間が省け、より高速化を図ることができる。 According to the eleventh aspect of the present invention, the object to be measured, which has been detected as a foreign product by the foreign product eliminating means, can be removed from the V-type chute, so that the trouble of measuring the foreign product by the outer diameter measuring means is eliminated. Can be omitted, and higher speed can be achieved.

請求項１２の発明によれば、供給部が被測定物の姿勢を一定に保ちつつ供給する回転フィーダ又は直進フィーダであるので、Ｖ型シュートへの被測定物の供給をより効率的に行うことができるとともに、被測定物の供給、外径測定及び選別作業の自動化を容易に図ることができる。 According to the twelfth aspect of the present invention, since the supply unit is a rotary feeder or a linear feeder that keeps the posture of the object to be measured constant, the object to be measured can be more efficiently supplied to the V-shaped chute. In addition, it is possible to easily supply the object to be measured, measure the outer diameter, and automate the sorting operation.

請求項１３の発明によれば、選別部は、排出手段で排出された被測定物を順次受けるためのポケットが周方向に複数形成された円板状部材から成るとともに、各ポケットには、外径測定手段で測定された外径に基づき被測定物を所定位置に排出し得るシャッターが設けられたので、等級毎に所定の位置に被測定物を排出させる選別部が各々形成されたものに比べ、等級に著しい偏在があってもシャッターの動作を略均一に行わせることができ、選別部の寿命を向上させることができる。 According to a thirteenth aspect of the present invention, the sorting section is composed of a disk-shaped member in which a plurality of pockets for sequentially receiving the objects to be measured discharged by the discharging means are formed in the circumferential direction. Since a shutter that can discharge the object to be measured to a predetermined position based on the outer diameter measured by the diameter measuring means is provided, a sorting unit that discharges the object to be measured to a predetermined position for each grade is formed. In comparison, even if there is a significant uneven distribution of the grades, the operation of the shutter can be performed substantially uniformly, and the life of the sorting unit can be improved.

請求項１４の発明によれば、通過確認センサと回転位置検出センサとに基づいてポケットで受けた被測定物を何れの位置で排出すべきかを把握しシャッターを制御し得るので、選別部による選別をより確実に行わせることができる。 According to the fourteenth aspect of the present invention, it is possible to grasp at which position the measurement object received in the pocket should be discharged based on the passage confirmation sensor and the rotational position detection sensor and to control the shutter. Can be performed more reliably.

以下、本発明の実施形態について図面を参照しながら具体的に説明する。
第１の実施形態に係る外径測定装置は、円柱状に加工された軸受用ローラ（被測定物）の外径及び長さを測定するものであり、測定された被測定物を寸法別に選別する選別装置に適用されたものである。かかる選別装置は、図１に示すように、被測定物を供給する供給部１と、供給された被測定物の外径等を測定する外径測定装置２と、測定された外径等に基づいて被測定物を寸法別に選別する選別部３とから構成されている。 Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The outer diameter measuring apparatus according to the first embodiment measures the outer diameter and length of a bearing roller (measured object) processed into a cylindrical shape, and the measured measured objects are sorted by dimension. Applied to a sorting apparatus. As shown in FIG. 1, the sorting apparatus includes a supply unit 1 for supplying an object to be measured, an outer diameter measuring device 2 for measuring an outer diameter and the like of the supplied object to be measured, and a measured outer diameter and the like. A sorting unit 3 for sorting the objects to be measured on the basis of the dimensions.

供給部１は、台車Ｄにて運搬された多数の被測定物を受け入れて振動作用にて搬送する直進フィーダ４と、該直進フィーダ４からの被測定物を受けた後に上昇して排出する垂直バケット５と、該垂直バケット５から排出された被測定物をシュート６を介して受け入れ、回転作用にて当該被測定物の姿勢を一定とした後、シュート８へ排出する回転フィーダ７とから主に構成されている。 The supply unit 1 receives a large number of objects to be measured conveyed by the carriage D and conveys them by a vibration action, and a vertical discharge that rises after receiving the objects to be measured from the linearly-advanced feeders 4. Mainly from the bucket 5 and the rotary feeder 7 that receives the object to be measured discharged from the vertical bucket 5 through the chute 6, makes the posture of the object to be measured constant by a rotating action, and then discharges it to the chute 8. It is configured.

尚、回転フィーダ７に代えて、被測定物の姿勢を一定に保ちつつ供給する直進フィーダとしてもよく、かかる直進フィーダ又は回転フィーダ７を供給部が具備することにより、Ｖ型シュート９への被測定物の供給をより効率的に行うことができるとともに、後述する一連の作業（被測定物の供給、外径測定及び選別作業）の自動化を容易に図ることができる。 Instead of the rotary feeder 7, it may be a linear feeder that supplies the measured object while keeping the posture of the object to be measured constant, and the linear feeder or the rotary feeder 7 is provided in the supply unit so that the V-shaped chute 9 can be covered. It is possible to supply the measurement object more efficiently and to easily automate a series of operations (supply of the measurement object, outer diameter measurement, and selection operation) described later.

外径測定装置２は、回転フィーダ７からシュート８を介して排出された被測定物を受け入れつつ、その外径及び長さを測定するもので、図２に示すように、始端側（同図中上端側）から終端側（同図中下端側）へ所定角度で傾斜されたＶ型シュート９と、被測定物の外径を測定すべく発光手段１５ａ及び受光手段１５ｂから成る外径測定手段と、被測定物の長さを測定すべく発光手段１６ａ及び受光手段１６ｂから成る長さ測定手段と、送り出し手段としての一対の送り出しローラ１３ａ、１３ｂと、排出手段としての一対の排出ローラ１４ａ、１４ｂとから主に構成されている。 The outer diameter measuring device 2 measures the outer diameter and the length while receiving the object to be measured discharged from the rotary feeder 7 through the chute 8, as shown in FIG. An outer diameter measuring means comprising a V-shaped chute 9 inclined at a predetermined angle from the middle upper end side to the terminal end side (lower end side in the figure), and a light emitting means 15a and a light receiving means 15b for measuring the outer diameter of the object to be measured. A length measuring means comprising a light emitting means 16a and a light receiving means 16b for measuring the length of the object to be measured, a pair of delivery rollers 13a, 13b as delivery means, and a pair of delivery rollers 14a as delivery means, 14b.

Ｖ型シュート９は、円柱状に加工された被測定物の２側面を支持し、その長さ方向に連続的に整列させつつ一方向（始端側から終端側へ向かう方向）に搬送可能なものであり、その始端側に供給された被測定物が終端側へ自重にて滑動可能とされている。また、Ｖ型シュート９は、図３に示すように、その搬送面９ａがＶ字型を成しており、各搬送面９ａにて被測定物Ｗの側面を支持するよう構成されている。尚、被測定物Ｗは、図４に示すように、両端が面取りされて所謂クラウン形状を成しており、隣接する被測定物Ｗ間に隙間Ｓが形成されている。 The V-shaped chute 9 supports two side surfaces of the object to be measured processed into a cylindrical shape, and can be conveyed in one direction (direction from the start end side to the end side) while being continuously aligned in the length direction. The object to be measured supplied to the start end side can be slid to the end side by its own weight. Further, as shown in FIG. 3, the V-shaped chute 9 has a V-shaped conveying surface 9a, and is configured to support the side surface of the workpiece W on each conveying surface 9a. As shown in FIG. 4, the object to be measured W is chamfered at both ends to form a so-called crown shape, and a gap S is formed between adjacent objects to be measured W.

一対の送り出しローラ１３ａ、１３ｂは、Ｖ型シュート９における始端側（外径測定手段より始端側）に左右対向して配設され、各ローラの回転動作により搬送面９ａ上の被測定物を任意速度で送り出し可能とするものである。具体的には、送り出しローラ１３ａ、１３ｂ間の寸法が被測定物の外径寸法より若干小さく設定されるとともに、ローラ材として収縮性のある材料を使用しており（後述する一対の排出ローラ１４ａ、１４ｂも同様）、同期した回転動作により挟持した被測定物を終端側へ送り出しするようになっている。 The pair of delivery rollers 13a and 13b are disposed opposite to the start end side (start end side from the outer diameter measuring means) of the V-shaped chute 9 so that the object to be measured on the transport surface 9a can be arbitrarily selected by the rotating operation of each roller. It can be sent out at a speed. Specifically, the dimension between the delivery rollers 13a and 13b is set to be slightly smaller than the outer diameter dimension of the object to be measured, and a shrinkable material is used as a roller material (a pair of discharge rollers 14a described later). 14b), and the object to be measured sandwiched by the synchronized rotation is sent out to the end side.

一対の排出ローラ１４ａ、１４ｂは、Ｖ型シュート９における終端側に左右対向して配設され、測定手段で外径が測定された被測定物を切り離しつつＶ型シュート９の終端側（長さ測定手段側）へ一定速度で排出するためのもので、送り出しローラ１３ａ、１３ｂと同様、各ローラの回転動作により搬送面９ａ上の被測定物を一定速度で排出可能とするものである。 The pair of discharge rollers 14a and 14b are disposed opposite to the end side of the V-shaped chute 9 on the left and right sides, separating the object whose outer diameter has been measured by the measuring means, and the end side (length) of the V-type chute 9 As with the delivery rollers 13a and 13b, the object to be measured on the conveying surface 9a can be ejected at a constant speed by rotating each roller.

然るに、送り出しローラ１３ａ、１３ｂによる送り出し速度よりも、排出ローラ１４ａ、１４ｂによる排出速度の方が大きくなるよう設定されており、Ｖ型シュート９における送り出しローラ１３ａ、１３ｂと排出ローラ１４ａ、１４ｂとの間には、被測定物が連続的に整列（図４で示す如く隣接する被測定物の端面同士が接触した状態）されるとともに、排出ローラ１４ａ、１４ｂより終端側（長さ測定手段側）は、被測定物が切り離された状態とされている。 However, the discharge speed by the discharge rollers 14a and 14b is set to be larger than the discharge speed by the discharge rollers 13a and 13b, and the discharge rollers 13a and 13b and the discharge rollers 14a and 14b in the V-shaped chute 9 are set. In the meantime, the objects to be measured are continuously aligned (in a state in which the end surfaces of the adjacent objects to be measured are in contact with each other as shown in FIG. 4), and at the end side (length measuring means side) from the discharge rollers 14a and 14b. Is a state in which the object to be measured is separated.

尚、図２中符号Ｓ１ａ、Ｓ１ｂ及びＳ２ａ、Ｓ２ｂは、各位置にてＶ型シュート９上の被測定物の有無を検知するための発光素子及び受光素子から成るセンサであり、センサＳ１ａ、Ｓ１ｂが被測定物を検知することにより、Ｖ型シュート９上に整列された被測定物が満杯であることを把握でき、センサＳ２ａ、Ｓ２ｂが被測定物を検知しないことにより、当該整列された被測定物が足りなくなってきていると把握できるよう構成されている。 In FIG. 2, reference numerals S1a, S1b and S2a, S2b are sensors each composed of a light emitting element and a light receiving element for detecting the presence or absence of an object to be measured on the V-type chute 9 at each position. By detecting the object to be measured, it is possible to grasp that the object to be measured aligned on the V-shaped chute 9 is full. When the sensors S2a and S2b do not detect the object to be measured, the aligned objects to be measured are detected. It is configured so that it can be grasped that there is not enough measurement object.

しかして、上記センサと送り出しローラ１３ａ、１３ｂとは図示しない制御手段と電気的に接続されており、被測定物が満杯と把握した場合は、送り出しローラ１３ａ、１３ｂの送り出し速度を下げて送り出し個数を低減させる一方、足りなくなってきていると把握した場合は、送り出し速度を上げて送り出し個数を増加させるよう制御可能とされている。これにより、Ｖ型シュート９上に整列された被測定物を常時適切な個数とすることができる。 Thus, the sensor and the delivery rollers 13a and 13b are electrically connected to a control means (not shown), and when it is grasped that the object to be measured is full, the delivery speed of the delivery rollers 13a and 13b is reduced. On the other hand, when it is understood that the amount is insufficient, it is possible to control to increase the delivery number by increasing the delivery speed. As a result, the number of objects to be measured arranged on the V-shaped chute 9 can always be an appropriate number.

また、Ｖ型シュート９における排出ローラ１４ａ、１４ｂの直前の位置には、当該Ｖ型シュート９の延設方向に対して垂直方向（図２中水平方向）に延びるスリット１２が形成されており、このスリット１２を介して外径測定手段を構成する発光手段１５ａ及び受光手段１５ｂが対向配置されている。発光手段１５ａは、スリット１２に対応した帯状の光を照射し得るもので、その透過光を受光手段１５ｂが受光し得るよう構成されている。これにより、被測定物の径方向に対して光を照射して受光手段１５ｂで被測定物形状に倣った透過光を受光することができ、かかる透過光に基づき、スリット１２上を通過する被測定物の外径を非接触にて測定することができる。 Further, a slit 12 extending in a direction perpendicular to the extending direction of the V-shaped chute 9 (horizontal direction in FIG. 2) is formed at a position immediately before the discharge rollers 14a and 14b in the V-shaped chute 9. The light emitting means 15a and the light receiving means 15b constituting the outer diameter measuring means are arranged to face each other through the slit 12. The light emitting means 15a can irradiate the band-shaped light corresponding to the slit 12, and the light receiving means 15b can receive the transmitted light. As a result, light can be emitted in the radial direction of the object to be measured, and the light receiving means 15b can receive the transmitted light that follows the shape of the object to be measured. Based on the transmitted light, the object passing through the slit 12 can be received. The outer diameter of the measurement object can be measured without contact.

更に、外径測定手段が被測定物の外径を連続的に測定すれば、当該被測定物の側面輪郭を把握することができ、面取り不良（クラウン形状の異常）等をも検出することができる。即ち、本実施形態で測定されるべき被測定物には、既述の如く所謂クラウン形状を成しているため、その異常をも検知して、後述の選別部３にて選別させることができるのである。 Furthermore, if the outer diameter measuring means continuously measures the outer diameter of the object to be measured, it is possible to grasp the side surface contour of the object to be measured, and to detect chamfering defects (crown shape abnormality) and the like. it can. That is, since the measurement object to be measured in the present embodiment has a so-called crown shape as described above, the abnormality can be detected and selected by the selection unit 3 described later. It is.

一方、Ｖ型シュート９における排出ローラ１４ａ、１４ｂの直後の位置には、被測定物の排出方向に対して帯状の光を照射する発光手段１６ａと、該発光手段１６ａの透過光を受光する受光手段１６ｂとから成る長さ測定手段が配設されている。これにより、被測定物の長さ方向に対して光を照射して受光手段１６ｂで被測定物形状に倣った透過光を受光ことができ、かかる透過光に基づき、排出ローラ１４ａ、１４ｂにて単独に切り離された被測定物の長さを非接触にて測定することができる。 On the other hand, at a position immediately after the discharge rollers 14a and 14b in the V-shaped chute 9, a light emitting means 16a for irradiating a strip-shaped light with respect to the discharge direction of the object to be measured, and a light reception for receiving the transmitted light of the light emitting means 16a Length measuring means comprising means 16b is arranged. As a result, light can be irradiated in the length direction of the object to be measured, and the transmitted light following the shape of the object to be measured can be received by the light receiving means 16b, and the discharge rollers 14a and 14b can receive the transmitted light based on the transmitted light. The length of the object to be measured separated independently can be measured in a non-contact manner.

尚、図２中符号Ｓ３ａとＳ３ｂ、Ｓ４ａとＳ４ｂ、及びＳ５ａ、Ｓ５ｂは、それぞれＶ型シュート９上の被測定物の有無を検知するための発光素子及び受光素子から成るセンサであり、センサＳ３ａ、Ｓ３ｂにより被測定物が排出ローラ１４ａ、１４ｂを通過することを検知できるとともに、センサＳ４ａ、４ｂ及びセンサＳ５ａ、Ｓ５ｂにより長さ測定手段による長さ測定のタイミング確認、及びＶ型シュート９の通過確認を行い得るよう構成されている。 In FIG. 2, reference numerals S3a and S3b, S4a and S4b, and S5a and S5b are sensors each composed of a light emitting element and a light receiving element for detecting the presence or absence of an object to be measured on the V-shaped chute 9. , S3b can detect that the object to be measured passes through the discharge rollers 14a and 14b, and the sensors S4a and 4b and the sensors S5a and S5b can check the timing of length measurement by the length measuring means and pass through the V-shaped chute 9. It is configured to allow confirmation.

また、Ｖ型シュート９の搬送面９ａ上方であって当該Ｖ型シュート９にて搬送される被測定物と微小の間隙を有した位置には、被測定物の上下方向の移動を規制する天面ガイド１７が延設されている。これにより、Ｖ型シュート９による搬送過程の被測定物の上下方向の移動（姿勢ずれ）を規制することができ、被測定物の外径を精度よく測定することができる。 Further, at a position above the conveying surface 9a of the V-shaped chute 9 and having a minute gap with the measured object conveyed by the V-shaped chute 9, there is a ceiling that restricts the vertical movement of the measured object. A surface guide 17 is extended. Thereby, the vertical movement (posture deviation) of the object to be measured during the conveyance process by the V-shaped chute 9 can be restricted, and the outer diameter of the object to be measured can be accurately measured.

更に、Ｖ型シュート９の搬送面９ａ両側であって外径測定手段の位置（スリット１２の形成位置近傍）にある被測定物と微小の隙間を有した位置には、被測定物の左右方向の移動を規制する側面ガイド１８ａ、１８ｂが延設されている。これにより、Ｖ型シュート９による搬送過程の被測定物の左右方向の移動（姿勢ずれ）を規制することができ、被測定物の外径を更に精度よく測定することができる。 Furthermore, the left and right directions of the object to be measured are located on both sides of the conveying surface 9a of the V-shaped chute 9 and at the position of the outer diameter measuring means (near the position where the slit 12 is formed) with a minute gap. Side guides 18a and 18b for restricting the movement of are extended. Thereby, the lateral movement (posture deviation) of the object to be measured during the conveyance process by the V-shaped chute 9 can be restricted, and the outer diameter of the object to be measured can be measured with higher accuracy.

また更に、Ｖ型シュート９における外径測定手段よりも始端側（Ｖ型シュート９の中央近傍）には、長さ、外径又は表面色が設定と比べて著しく異なる被測定物を検出し、その被測定物をＶ型シュート９から取り除くための異品排除手段１９が配設されている。具体的には、異品排除手段１９は、隙間Ｓ（図４参照）等を検知して被測定物の長さ及び外径をそれぞれ検出するためのセンサ、及び被測定物の表面色を検出するためのセンサ（何れも不図示）と、後述する異品排除機構とから構成されている。 Still further, on the starting end side (near the center of the V-shaped chute 9) with respect to the outer diameter measuring means in the V-shaped chute 9, a measured object whose length, outer diameter or surface color is significantly different from the setting is detected. A foreign product eliminating means 19 for removing the object to be measured from the V-shaped chute 9 is provided. Specifically, the foreign product eliminating means 19 detects the gap S (see FIG. 4) and the like to detect the length and outer diameter of the object to be measured, and the surface color of the object to be measured. Sensor (both not shown) and a foreign product eliminating mechanism described later.

異品排除機構は、図５に示すように、一端に可動式の天面ガイド１７ａ及び他端に吸着手段２１がそれぞれ形成された門型のフレーム２０から主に構成されており、フレーム２０は図示しない駆動手段に接続されてＸ、Ｙ及びＺ軸方向に移動可能とされている。吸着手段２１は、例えば吸引ゴムから成り、その内部を負圧とすることにより被測定物を吸着可能とされている。 As shown in FIG. 5, the foreign object eliminating mechanism mainly includes a portal frame 20 having a movable top guide 17a at one end and a suction means 21 at the other end. It is connected to driving means (not shown) and is movable in the X, Y and Z axis directions. The adsorbing means 21 is made of, for example, suction rubber, and is capable of adsorbing an object to be measured by setting the inside thereof to a negative pressure.

そして、異品排除手段１９の何れかのセンサが異品を検知すると、送り出しローラ１３ａ、１３ｂ及び排出ローラ１４ａ、１４ｂの回転駆動を停止させるとともに、フレーム２０を移動させ、吸着手段２１を異品とされた被測定物に当接させた位置まで移動させる。その状態で吸着手段２１内部を負圧として被測定物を吸着しつつ、フレーム２０を初期位置（図５で示した位置）まで戻らせ、負圧を解除して吸着した被測定物を離間させる。これにより、外径測定手段にて当該異品の測定を行ってしまう手間が省け、より高速化を図ることができる。また、異品排除手段１９にて異品を取り除かない場合、Ｖ型シュート９から異品が排出されることとなるが、その場合、異品の排出タイミングと後述する選別部３のポケット２２ａの受けタイミングがずれてしまい、当該ポケット２２ａに入らないことがある。然るに、本実施形態によれば、異品排除手段１９にて異品を取り除くことができるので、排出される被測定物を安定して所定のポケット２２ａに受け渡しすることができる。 When any one of the sensors of the different product removing means 19 detects a different product, the rotation driving of the delivery rollers 13a and 13b and the discharge rollers 14a and 14b is stopped, the frame 20 is moved, and the suction means 21 is changed to a different product. It is moved to a position in contact with the measured object. In this state, the suction means 21 is held at a negative pressure to suck the object to be measured, and the frame 20 is returned to the initial position (position shown in FIG. 5), and the negative pressure is released to separate the sucked object to be measured. . As a result, it is possible to save the trouble of measuring the extraneous product by the outer diameter measuring means, and to increase the speed. Further, if the foreign product eliminating means 19 does not remove the foreign product, the foreign product is discharged from the V-shaped chute 9. In this case, the discharge timing of the foreign product and the pocket 22a of the sorting unit 3 to be described later are used. The receiving timing may shift and the pocket 22a may not be entered. However, according to the present embodiment, since the foreign product can be removed by the foreign product eliminating means 19, the discharged measurement object can be stably delivered to the predetermined pocket 22a.

選別部３は、排出ローラ１４ａ、１４ｂで排出された被測定物を寸法別（等級別）に選別するためのもので、図６に示すように、排出ローラ１４ａ、１４ｂで排出された被測定物を順次受けるためのポケット２２ａが周方向に複数形成された円板状部材２２を有して成り、各ポケット２２ａにはシャッター２２ｂがそれぞれ設けられている。尚、本実施形態においては、円板状部材２２の周縁に被測定物を収容し得るポケット２２ａが等間隔で１０個形成されている。 The sorting unit 3 is for sorting the measurement objects discharged by the discharge rollers 14a and 14b according to dimensions (by grade). As shown in FIG. 6, the measurement objects discharged by the discharge rollers 14a and 14b. A plurality of pockets 22a for sequentially receiving the objects are provided with a disk-like member 22 formed in the circumferential direction, and each pocket 22a is provided with a shutter 22b. In the present embodiment, ten pockets 22 a that can accommodate the object to be measured are formed at equal intervals on the periphery of the disk-shaped member 22.

かかる円板状部材２２は、図示しないモータにより一方向に回転駆動可能とされており、その周縁近傍には、当該円板状部材２２の回転位置を検出するための回転位置検出センサ２３が固設されている。また、シャッター２２ｂは、ポケット２２ａの底面を開閉し得るもので、各ポケット２２ａにそれぞれ配設された開閉駆動手段２５により選択的に開閉動作可能とされている。尚、開閉駆動手段２５は、各ポケット２２ａのそれぞれに配設されているが、同図においては１つのみ記載し、他は省略してある。 The disk-like member 22 can be driven to rotate in one direction by a motor (not shown), and a rotation position detection sensor 23 for detecting the rotation position of the disk-like member 22 is fixed in the vicinity of the periphery. It is installed. The shutter 22b can open and close the bottom surface of the pocket 22a, and can be selectively opened and closed by the opening / closing drive means 25 provided in each pocket 22a. The opening / closing drive means 25 is disposed in each pocket 22a, but only one is shown in the figure, and the others are omitted.

円板状部材２２の周囲には、外径測定手段及び長さ測定手段により測定された外径及び長さに基づき等級分けされた被測定物を収容するための等級別収容部１１が複数配設されており、これら等級別収容部１１と円板状部材２２の各ポケット２２ａ下方位置とは通路２４にて連結されている。従って、所定のポケット２２ａにおけるシャッター２２ｂが所定の位置で開状態とされると、そのポケット２２ａに収容された被測定物が何れかの通路２４に落下して所望の等級別収容部１１に収容されることとなる。 Around the disk-shaped member 22, a plurality of graded accommodation units 11 for accommodating the objects to be measured graded based on the outer diameter and length measured by the outer diameter measuring means and the length measuring means are arranged. The graded accommodation portions 11 and the positions below the pockets 22a of the disk-like member 22 are connected by a passage 24. Therefore, when the shutter 22b in the predetermined pocket 22a is opened at a predetermined position, the object to be measured stored in the pocket 22a falls into one of the passages 24 and is stored in the desired graded storage unit 11. Will be.

ここで、既述の通過確認センサ（センサＳ４ａ、４ｂ及びセンサＳ５ａ、Ｓ５ｂ）により、被測定物のＶ型シュート９からの通過確認がなされるとともに、回転位置検出センサ２３により円板状部材２２の回転位置が検出されており、これら通過確認センサと回転位置検出センサ２３とに基づいてポケット２２ａで受けた被測定物を何れの位置で落下（排出）させるべきかを把握している。 Here, the passage confirmation sensor (sensors S4a, 4b and sensors S5a, S5b) described above confirms the passage of the object to be measured from the V-shaped chute 9, and the rotational position detection sensor 23 provides the disc-like member 22. The rotation position is detected, and based on the passage confirmation sensor and the rotation position detection sensor 23, it is grasped at which position the measured object received in the pocket 22a should be dropped (discharged).

即ち、外径測定手段及び長さ測定手段による測定で、ポケット２２ａで受けた被測定物が何れの等級別収容手段１１に収容させるべきかが判別されており、その等級データと上述した被測定物の通過確認及び円板状部材２２の回転位置とを対比させ、開閉駆動手段２５の動作タイミングを指示することにより、所望の等級別収容部１１側へ被測定物を排出させるのである。 That is, in the measurement by the outer diameter measurement means and the length measurement means, it is determined in which grade accommodation means 11 the measurement object received in the pocket 22a should be accommodated, and the grade data and the measurement object described above. The object to be measured is discharged to the desired graded accommodation unit 11 side by comparing the passage of the object and the rotational position of the disk-like member 22 and instructing the operation timing of the opening / closing drive means 25.

本選別部３によれば、被測定物を順次受けるためのポケット２２ａが周方向に複数形成された円板状部材２２から成るとともに、各ポケット２２ａには、外径測定手段及び長さ測定手段で測定された外径及び長さに基づき被測定物を所定位置に排出し得るシャッター２２ｂが設けられているので、等級毎に所定の位置に被測定物を排出させる選別部が各々形成されたものに比べ、等級に著しい偏在があってもシャッター２２ｂの開閉動作を略均一に行わせることができ、選別部３の寿命を向上させることができる。 According to the sorting unit 3, the pockets 22a for sequentially receiving the objects to be measured are composed of the disk-like members 22 formed in the circumferential direction, and each pocket 22a has an outer diameter measuring means and a length measuring means. Since the shutter 22b is provided that can discharge the object to be measured to a predetermined position based on the outer diameter and the length measured in the above, a selection unit that discharges the object to be measured to a predetermined position for each grade is formed. Compared to the case, even if the grade is significantly uneven, the shutter 22b can be opened and closed substantially uniformly, and the life of the sorting unit 3 can be improved.

また、通過確認センサ（センサＳ４ａ、４ｂ及びセンサＳ５ａ、Ｓ５ｂ）と回転位置検出センサ２３とに基づいてポケット２２ａで受けた被測定物を何れの位置で排出すべきかを把握しシャッター２２ｂを制御し得るので、選別部３による選別をより確実に行わせることができる。尚、円板状部材２２の周縁壁には、各ポケット２２ａを識別可能な目印（孔や切欠等）が形成されており、回転位置検出センサ２３が非接触で当該目印を検出することで円板状部材２２の回転位置が把握されるよう構成されている。 Further, based on the passage confirmation sensors (sensors S4a, 4b and sensors S5a, S5b) and the rotational position detection sensor 23, the position of the object to be measured received in the pocket 22a is grasped and the shutter 22b is controlled. Therefore, the sorting by the sorting unit 3 can be performed more reliably. In addition, a mark (a hole, a notch or the like) that can identify each pocket 22a is formed on the peripheral wall of the disk-shaped member 22, and the rotation position detection sensor 23 detects the mark in a non-contact manner. The rotational position of the plate member 22 is configured to be grasped.

上記第１の実施形態においては、Ｖ型シュート９、天面ガイド１７及び側面ガイド１８ａ、１８ｂが非磁性金属材料から成るものであり、少なくとも被測定物と対向する面に摩擦係数を低減するための表面処理が施されている。従って、これら構成要素と被測定物とが干渉して当該測定物が磁化されてしまうのを防止することができる。尚、表面処理は、硬度の高いメッキを施したり、或いは摩擦係数の低い合成樹脂材を接着させたりすることができ、当該合成樹脂材として導電性樹脂を使用するのが好ましい。 In the first embodiment, the V-shaped chute 9, the top surface guide 17, and the side surface guides 18a and 18b are made of a nonmagnetic metal material, and at least reduce the friction coefficient on the surface facing the object to be measured. Surface treatment is applied. Therefore, it is possible to prevent the measurement object from being magnetized due to interference between these components and the measurement object. The surface treatment can be performed by plating with high hardness or by adhering a synthetic resin material having a low friction coefficient, and it is preferable to use a conductive resin as the synthetic resin material.

次に、本発明に係る第２の実施形態について説明する。
本実施形態に係る外径測定装置は、第１の実施形態と同様、円柱状に加工された軸受用ローラ（被測定物）の外径及び長さを測定するものであり、図７に示すように、Ｖ型シュート９の搬送面上方であってスリット１２の前後位置に押さえ手段２５ａ、２５ｂが形成されるとともに、当該Ｖ型シュート９におけるスリット１２より始端側に第２送り出しローラ２６ａ、２６ｂ（送り出し手段）が配設されている。尚、図示しない他の構成要素（Ｖ型シュート９の始端に配設された送り出しローラ１３ａ、１３ｂ等）は、第１の実施形態と略同一のものである。 Next, a second embodiment according to the present invention will be described.
As in the first embodiment, the outer diameter measuring apparatus according to the present embodiment measures the outer diameter and length of a bearing roller (measured object) processed into a cylindrical shape, and is shown in FIG. As described above, the pressing means 25a and 25b are formed above the conveying surface of the V-shaped chute 9 and at the front and rear positions of the slit 12, and the second delivery rollers 26a and 26b are arranged on the start end side from the slit 12 in the V-shaped chute 9. (Feeding means) is provided. Other constituent elements (not shown) (feed rollers 13a, 13b and the like disposed at the start end of the V-shaped chute 9) are substantially the same as those in the first embodiment.

押さえ手段２５ａ、２５ｂは、、それぞれ被測定物に対して一定圧で接触し得るもので、図８に示すように、弾性部材２８から延設された板ばね２７の先端にそれぞれ形成されている。これにより、スリット１２の位置で被測定物が上下方向に移動してしまうのを確実に防止することができ、外径測定手段にて被測定物の外径を更に精度よく測定することができる。 The holding means 25a and 25b can contact the object to be measured at a constant pressure, respectively, and are formed at the tips of the leaf springs 27 extending from the elastic member 28 as shown in FIG. . Thereby, it can prevent reliably that a to-be-measured object moves to the up-down direction in the position of the slit 12, and can measure the outer diameter of a to-be-measured object more accurately with an outer diameter measurement means. .

第２送り出しローラ２６ａ、２６ｂは、Ｖ型シュート９の始端に配設された送り出しローラ１３ａ、１３ｂ（第１の実施形態参照）と同様、Ｖ型シュート９に左右対向して配設され、各ローラの回転動作により搬送面９ａ上の被測定物を任意速度で送り出し可能とするものであり、ローラ間の寸法が被測定物の外径寸法より若干小さく設定されるとともに、ローラ材として収縮性のある材料を使用し、同期した回転動作によって被測定物を送り出しするようになっている。 The second delivery rollers 26a and 26b are arranged opposite to the V-type chute 9 in the same manner as the delivery rollers 13a and 13b (see the first embodiment) arranged at the start end of the V-type chute 9, The object to be measured on the conveying surface 9a can be sent out at an arbitrary speed by rotating the roller. The dimension between the rollers is set slightly smaller than the outer diameter dimension of the object to be measured, and the roller material is shrinkable. The material to be measured is sent out by a synchronized rotating operation.

これにより、押さえ手段２５ａ、２５ｂにより一定圧で接触され、摩擦力が働いている被測定物を強制的にスリット１２側へ送り出すことができ、被測定物がＶ型シュート９上で滞ってしまうのを回避することができる。尚、押さえ手段２５ａ、２５ｂに代えて、図９に示すように、弾性部材３１から延設された板ばね３０の先端に形成された一体型の押さえ手段２９としてもよい。また、押さえ手段を一定圧で被測定物に接触させる手段は、板ばねに限定されず、他の付勢手段或いは押さえ手段の自重により一定圧で接触させた構成としてもよい。 As a result, the object to be measured, which is contacted at a constant pressure by the pressing means 25a and 25b and has a frictional force, can be forcibly sent to the slit 12 side, and the object to be measured stagnate on the V-shaped chute 9. Can be avoided. Instead of the holding means 25a and 25b, as shown in FIG. 9, an integrated holding means 29 formed at the tip of the leaf spring 30 extended from the elastic member 31 may be used. Further, the means for bringing the pressing means into contact with the object to be measured at a constant pressure is not limited to the leaf spring, and may be configured to be brought into contact at a constant pressure by the other urging means or the weight of the pressing means.

また、本実施形態においては、Ｖ型シュート９、天面ガイド１７及び側面ガイド１８ａ、１８ｂに加えて押さえ手段（２５ａ、２５ｂ又は２９）も非磁性金属材料から成るものであり、少なくとも被測定物と対向する面に摩擦係数を低減するための表面処理（第１の実施形態と同様）が施されている。従って、これら構成要素と被測定物とが干渉して当該測定物が磁化されてしまうのを防止することができる。 In the present embodiment, in addition to the V-shaped chute 9, the top surface guide 17, and the side surface guides 18a and 18b, the pressing means (25a, 25b or 29) is also made of a nonmagnetic metal material, and at least the object to be measured Surface treatment (similar to the first embodiment) for reducing the coefficient of friction is performed on the surface facing the surface. Therefore, it is possible to prevent the measurement object from being magnetized due to interference between these components and the measurement object.

次に、本発明に係る第３の実施形態について説明する。
本実施形態に係る外径測定装置は、第１及び第２の実施形態と同様、円柱状に加工された軸受用ローラ（被測定物）の外径及び長さを測定するものであり、図１０に示すように、Ｖ型シュート９の搬送面９ａが左右に分割した構成とされたものである。即ち、Ｖ型シュート９が左側シュート９ｂと右側シュート９ｃとで構成され、左側の搬送面９ａが左側シュート９ｂに、右側の搬送面９ａが右側シュート９ｃにそれぞれ形成されている。 Next, a third embodiment according to the present invention will be described.
As in the first and second embodiments, the outer diameter measuring apparatus according to the present embodiment measures the outer diameter and length of a bearing roller (measured object) processed into a cylindrical shape. As shown in FIG. 10, the conveying surface 9a of the V-shaped chute 9 is divided into left and right. That is, the V-shaped chute 9 is composed of a left chute 9b and a right chute 9c, the left transport surface 9a is formed on the left chute 9b, and the right transport surface 9a is formed on the right chute 9c.

これら左側シュート９ｂ及び右側シュート９ｃは、それぞれ左側ベース３２及び右側ベース３３上に固定されており、これらベースの移動に伴い、搬送面９ａが近接又は離間可能とされている。具体的には、左側ベース３２及び右側ベース３３の間には、一対の勾配面３４ａを有した中間部材３４が配設されており、それぞれの勾配面３４ａにはリニアガイド３５ａ、３５ｂが形成されるとともに、これらリニアガイド３５ａ、３５ｂに沿って左側ベース３２及び右側ベース３３が摺動自在に配設されている。 The left chute 9b and the right chute 9c are fixed on the left base 32 and the right base 33, respectively, and the transport surface 9a can be brought close to or separated from each other as the base moves. Specifically, an intermediate member 34 having a pair of gradient surfaces 34a is disposed between the left base 32 and the right base 33, and linear guides 35a and 35b are formed on the respective gradient surfaces 34a. In addition, a left base 32 and a right base 33 are slidably disposed along the linear guides 35a and 35b.

そして、ボールネジＢを回転駆動させると、摺動部材３６ａ及び３６ｂを介して左側ベース３２及び右側ベース３３がリニアガイド３５ａ、３５ｂに沿って移動し、搬送面９ａが所望寸法だけ近接又は離間するようになっている。これにより、被測定物の大きさ（特に外径）に応じてボールネジＢを駆動させ、搬送面９ａを近接又は離間することが可能とされるため、種々の被測定物の外径測定に容易に対応することができるとともに、大きさが異なる被測定物に変更する際、その段取りを簡素化することができる。 Then, when the ball screw B is driven to rotate, the left base 32 and the right base 33 move along the linear guides 35a and 35b via the sliding members 36a and 36b so that the conveying surface 9a approaches or separates by a desired dimension. It has become. Accordingly, the ball screw B can be driven according to the size (especially the outer diameter) of the object to be measured, and the conveyance surface 9a can be brought close to or separated from each other, so that it is easy to measure the outer diameter of various objects to be measured. In addition, it is possible to simplify the setup when changing to a measurement object having a different size.

更に、本実施形態に係るＶ型シュート９においては、被測定物の大きさに応じて左右分割された搬送面９ａが近接又は離間可能とされるとともに、被測定物の上下方向の移動を規制する天面ガイド１７、左右方向の移動を規制する側面ガイド１８ａ、１８ｂの被測定物との位置関係が一定に維持されるよう移動可能とされている。即ち、天面ガイド１７は外径測定装置の本体（左側ベース３２及び右側ベース３３と連動しない固定側）に固設する一方、側面ガイド１８ａ、１８ｂは、左側ベース３２（左側シュート９ｂも含む）及び右側ベース３３（右側シュート９ｃも含む）上にそれぞれ固設され、当該左側ベース３２及び右側ベース３３と共に移動するようになっているのである。 Furthermore, in the V-type chute 9 according to the present embodiment, the left and right transport surfaces 9a can be brought close to or separated from each other according to the size of the object to be measured, and the vertical movement of the object to be measured is restricted. The top surface guide 17 and the side guides 18a and 18b that restrict the movement in the left-right direction are movable so that the positional relationship with the object to be measured is maintained constant. That is, the top guide 17 is fixed to the main body of the outer diameter measuring device (the fixed side not interlocked with the left base 32 and the right base 33), while the side guides 18a, 18b are the left base 32 (including the left chute 9b). And the right base 33 (including the right chute 9c), respectively, and moves together with the left base 32 and the right base 33.

尚、被測定物を検出する各センサ等も、外径測定装置の本体上にそれぞれ固設させておけば、被測定物の大きさに応じて左右分割された搬送面９ａが近接又は離間した際、当該センサと被測定物との位置関係を一定に維持することができる。特に、第２の実施形態に係る押さえ手段２５ａ、２５ｂ（２９も含む）を具備させた際も、同様に固設させれば、当該押さえ手段と被測定物との位置関係を一定に維持することができ、段取り作業を一層向上良好とすることができる。 In addition, if each sensor etc. which detect a to-be-measured object is each fixed on the main body of an outer diameter measuring apparatus, the conveyance surface 9a divided into right and left according to the magnitude | size of the to-be-measured object will adjoin or space apart. At this time, the positional relationship between the sensor and the object to be measured can be kept constant. In particular, even when the pressing means 25a and 25b (including 29) according to the second embodiment are provided, the positional relationship between the pressing means and the object to be measured can be maintained constant if they are similarly fixed. The setup work can be further improved and improved.

第１〜第３の実施形態によれば、外径測定手段にて非接触で測定するので、被測定物の外径を高速且つ精度良く行わせることができるとともに、外径や長さが異なる被測定物の外径の測定に変更する際、その段取りを簡素化して作業性を向上させることができる。また、外径測定手段による被測定物の外径の測定に加え、その長さも長さ測定手段にて測定し得るので、選別装置のより細かな選別を図ることができる。更に、被測定物がＶ型シュート９上を自重にて滑動し得るので、被測定物を搬送するための別個の駆動手段等を不要とすることができ、装置構成をより簡素化することができる。 According to the first to third embodiments, since the outer diameter measuring unit performs non-contact measurement, the outer diameter of the object to be measured can be performed with high speed and accuracy, and the outer diameter and length are different. When changing to the measurement of the outer diameter of the object to be measured, the setup can be simplified and workability can be improved. Further, in addition to the measurement of the outer diameter of the object to be measured by the outer diameter measuring means, the length can also be measured by the length measuring means, so that the sorting device can be further finely sorted. Furthermore, since the object to be measured can slide on the V-shaped chute 9 by its own weight, a separate driving means for conveying the object to be measured can be dispensed with, and the apparatus configuration can be further simplified. it can.

以上、本実施形態について説明したが、本発明はこれらに限定されず、例えば外径測定手段を具備しつつ長さ測定手段を具備しないものとすることができる。また、本実施形態いおいては、Ｖ型シュート９を所定角度傾斜させているが、被測定物を送り出し可能とすれば、略水平としたものであってもよい。更に、Ｖ型シュート９の始端側及び終端側に配設された送り出しローラ１３ａ、１３ｂ及び排出ローラ１４ａ、１４ｂに代えて、他の送り出し手段及び排出手段としてもよい。 Although the present embodiment has been described above, the present invention is not limited thereto, and for example, it is possible to provide an outer diameter measuring unit but not a length measuring unit. Further, in the present embodiment, the V-shaped chute 9 is inclined by a predetermined angle, but may be substantially horizontal as long as the measurement object can be sent out. Further, instead of the feed rollers 13a and 13b and the discharge rollers 14a and 14b disposed on the start end side and the end end side of the V-shaped chute 9, other feed means and discharge means may be used.

また更に、本実施形態においては、被測定物の有無などを検知するセンサが透過型のものとされているが、反射型のものであってもよい。尚、本実施形態に係る外径測定装置は、何れも等級別に選別する選別装置に適用されているが、外径（長さも含む）のみを測定する単独の装置であってもよく、或いは円柱状に加工された他の被測定物の外径等を測定するものに適用することもできる。 Furthermore, in the present embodiment, the sensor that detects the presence or absence of the object to be measured is a transmissive type, but may be a reflective type. The outer diameter measuring device according to the present embodiment is applied to a sorting device that sorts by grade, but may be a single device that measures only the outer diameter (including length), or a circle. The present invention can also be applied to a device for measuring the outer diameter or the like of another object to be measured processed into a column shape.

円柱状に加工された被測定物の２側面を支持し、その長さ方向に連続的に整列させつつ一方向に搬送可能なＶ型シュートと、該Ｖ型シュートの延設方向に対して垂直方向に延びるスリットを設け、当該Ｖ型シュートにて搬送される被測定物の径方向に対して帯状に光を照射するとともに、その透過光に基づき非接触にて被測定物の外径を測定する外径測定手段と、該測定手段で外径が測定された被測定物を切り離しつつ前記Ｖ型シュートの終端側へ一定速度で排出手段とを具備した外径測定装置であれば、外観形状が異なるもの或いは他の機能が付加されたもの等にも適用することができる。 A V-shaped chute that supports two side surfaces of a workpiece processed into a cylindrical shape and can be conveyed in one direction while being continuously aligned in the length direction, and perpendicular to the extending direction of the V-shaped chute A slit extending in the direction is provided to irradiate light in a strip shape with respect to the radial direction of the measured object conveyed by the V-shaped chute, and measure the outer diameter of the measured object in a non-contact manner based on the transmitted light If the outer diameter measuring device has an outer diameter measuring means and a discharge means at a constant speed toward the terminal side of the V-shaped chute while separating the object whose outer diameter has been measured by the measuring means, The present invention can also be applied to those having different functions or those having other functions added.

本発明の第１の実施形態に係る外径測定装置を適用した選別装置全体を示す模式図The schematic diagram which shows the whole sorting apparatus to which the outer diameter measuring apparatus which concerns on the 1st Embodiment of this invention is applied 同外径測定装置におけるＶ型シュート及びその周辺構成要素を示す正面図及び側面図Front view and side view showing a V-shaped chute and its peripheral components in the outer diameter measuring apparatus 同外径測定装置における搬送面上の被測定物を示す断面模式図Cross-sectional schematic diagram showing the object to be measured on the conveying surface in the same outer diameter measuring device 同外径測定装置における搬送面上の被測定物を示す側面模式図Side surface schematic diagram showing the object to be measured on the conveying surface in the same outer diameter measuring device 同外径測定装置における異品排除手段を示す模式図Schematic diagram showing the foreign product exclusion means in the same outer diameter measuring device 同外径測定装置を適用した選別装置の選別部を示す模式図Schematic showing the sorting part of the sorting device to which the same outer diameter measuring device is applied 本発明の第２の実施形態に係る外径測定装置におけるＶ型シュート（終端側）及びその周辺構成要素を示す正面図The front view which shows the V-type chute | shoot (end side) and its peripheral component in the outer diameter measuring apparatus which concerns on the 2nd Embodiment of this invention. 同外径測定装置における押さえ手段を示す断面模式図Cross-sectional schematic diagram showing the holding means in the same outer diameter measuring device 同外径測定装置における他の押さえ手段を示す断面模式図Cross-sectional schematic diagram showing other pressing means in the outer diameter measuring apparatus 本発明の第３の実施形態に係る外径測定装置における左右に分割されたＶ型シュートを示す断面模式図Sectional schematic diagram which shows the V-type chute | segmentation divided into right and left in the outer diameter measuring apparatus which concerns on the 3rd Embodiment of this invention.

符号の説明Explanation of symbols

１供給部
２外径測定装置
３選別部
４直進フィーダ
５垂直バケット
６シュート
７回転フィーダ
８シュート
９Ｖ型シュート
９ａ搬送面
１０円板状部材
１１等級別収容部
１２スリット
１３ａ、１３ｂ送り出しローラ（送り出し手段）
１４ａ、１４ｂ排出ローラ（排出手段）
１５ａ、１５ｂ発光手段及び受光手段（外径測定手段）
１６ａ、１６ｂ発光手段及び受光手段（長さ測定手段）
１７天面ガイド
１８ａ、１８ｂ側面ガイド
１９異品排除手段
２０フレーム
２１吸着手段
２２円板状部材
２２ａポケット
２２ｂシャッター
２３回転位置検出センサ
２４通路
２５ａ、２５ｂ、２９押さえ手段
２６ａ、２６ｂ第２送り出しローラ（送り出し手段）
２７、３０板ばね
２８、３１弾性部材
３２左側ベース
３３右側ベース
３４中間部材
３５ａ、３５ｂ摺動部材
Ｗ被測定物
Ｄ台車 DESCRIPTION OF SYMBOLS 1 Supply part 2 Outer diameter measuring device 3 Sorting part 4 Straight advance feeder 5 Vertical bucket 6 Chute 7 Rotating feeder 8 Chute 9 V-type chute 9a Conveying surface 10 Disc-shaped member 11 Grade-specific accommodation part 12 Slit 13a, 13b Sending roller (feeding out) means)
14a, 14b Discharge roller (discharge means)
15a, 15b Light emitting means and light receiving means (outer diameter measuring means)
16a, 16b Light emitting means and light receiving means (length measuring means)
17 Top guides 18a, 18b Side guides 19 Exclusion means 20 Frame 21 Adsorption means 22 Disc-like member 22a Pocket 22b Shutter 23 Rotation position detection sensor 24 Passage 25a, 25b, 29 Pressing means 26a, 26b Second delivery roller ( Sending means)
27, 30 Leaf spring 28, 31 Elastic member 32 Left base 33 Right base 34 Intermediate member 35a, 35b Sliding member W DUT D Dolly

Claims

円柱状に加工された被測定物の２側面を支持し、その長さ方向に連続的に整列させつつ一方向に搬送可能なＶ型シュートと、
該Ｖ型シュートの延設方向に対して垂直方向に延びるスリットを設け、当該Ｖ型シュートにて搬送される被測定物の径方向に対して帯状に光を照射するとともに、その透過光に基づき非接触にて被測定物の外径を測定する外径測定手段と、
該測定手段で外径が測定された被測定物を切り離しつつ前記Ｖ型シュートの終端側へ一定速度で排出手段と、
を具備したことを特徴とする外径測定装置。 A V-shaped chute that supports two side surfaces of the workpiece processed into a columnar shape and can be conveyed in one direction while being continuously aligned in the length direction;
A slit extending in a direction perpendicular to the extending direction of the V-shaped chute is provided, and light is irradiated in a strip shape to the radial direction of the object to be measured conveyed by the V-shaped chute, and based on the transmitted light. An outer diameter measuring means for measuring the outer diameter of the object to be measured in a non-contact manner;
Discharging means at a constant speed toward the terminal side of the V-shaped chute while separating the object whose outer diameter has been measured by the measuring means;
An outer diameter measuring device comprising:

前記Ｖ型シュートの終端側に設けられ、前記排出手段で切り離されつつ送り出しされる被測定物の長さ方向に対して光を照射するとともに、その透過光に基づき非接触にて当該被測定物の長さを測定する長さ測定手段を具備したことを特徴とする請求項１記載の外径測定装置。 Light is applied to the length direction of the object to be measured that is provided on the terminal side of the V-shaped chute and is sent out while being cut off by the discharging means, and the object to be measured is contactlessly based on the transmitted light. The outer diameter measuring apparatus according to claim 1, further comprising a length measuring means for measuring the length of the outer diameter.

前記Ｖ型シュートは、その始端側から終端側へ所定角度で傾斜され、当該始端側に供給された被測定物が終端側へ自重にて滑動可能とされたことを特徴とする請求項１又は請求項２記載の外径測定装置。 The V-shaped chute is inclined at a predetermined angle from the start end side to the end side, and the object to be measured supplied to the start end side can be slid to the end side by its own weight. The outer diameter measuring apparatus according to claim 2.

前記Ｖ型シュートにおける前記外径測定手段より始端側に配設され、当該外径測定手段に対して被測定物を任意速度で送り出し可能とする送り出し手段を具備したことを特徴とする請求項１〜請求項３の何れか１つに記載の外径測定装置。 2. A feeding means disposed on the start end side of the outer diameter measuring means in the V-shaped chute and capable of feeding an object to be measured at an arbitrary speed to the outer diameter measuring means. The outer diameter measuring device according to any one of claims 3 to 4.

前記Ｖ型シュートの搬送面上方であって当該Ｖ型シュートにて搬送される被測定物と微小の隙間を有した位置には、当該被測定物の上下方向の移動を規制する天面ガイドが延設されたことを特徴とする請求項１〜請求項４の何れか１つに記載の外径測定装置。 A top guide for regulating the vertical movement of the object to be measured is located above the conveying surface of the V-shaped chute and at a position having a minute gap with the object to be measured conveyed by the V-shaped chute. The outer diameter measuring device according to any one of claims 1 to 4, wherein the outer diameter measuring device is extended.

前記Ｖ型シュートの搬送面両側であって前記外径測定手段の位置にある被測定物と微小の隙間を有した位置には、当該被測定物の左右方向の移動を規制する側面ガイドが延設されたことを特徴とする請求項１〜請求項５の何れか１つに記載の外径測定装置。 Side guides for restricting the movement of the object to be measured in the left-right direction extend on both sides of the conveying surface of the V-shaped chute and at a position having a minute gap with the object to be measured at the position of the outer diameter measuring means. The outer diameter measuring device according to any one of claims 1 to 5, wherein the outer diameter measuring device is provided.

Ｖ型シュートの搬送面上方であって前記スリットの前後位置には、それぞれ被測定物に対して一定圧で接触し得る押さえ手段が形成されたことを特徴とする請求項１〜請求項６の何れか１つに記載の外径測定装置。 7. The pressing means capable of contacting the object to be measured with a constant pressure is formed above and below the slit of the V-shaped chute and on the front and rear positions of the slit, respectively. The outer diameter measuring device according to any one of the above.

前記Ｖ型シュート、天面ガイド、側面ガイド又は押さえ手段は、非磁性金属材料から成るとともに、少なくとも被測定物と対向する面に摩擦係数を低減するための表面処理が施されたことを特徴とする請求項１〜請求項７の何れか１つに記載の外径測定装置。 The V-shaped chute, the top surface guide, the side surface guide, or the pressing means are made of a nonmagnetic metal material, and at least a surface facing the object to be measured is subjected to a surface treatment for reducing a friction coefficient. The outer diameter measuring device according to any one of claims 1 to 7.

前記Ｖ型シュートは、その搬送面が左右に分割した構成とされ、被測定物の大きさに応じて当該搬送面が近接又は離間可能とされたことを特徴とする請求項１〜請求項８の何れか１つに記載の外径測定装置。 9. The V-shaped chute has a structure in which a conveyance surface is divided into left and right sides, and the conveyance surface can be brought close to or separated from each other according to the size of an object to be measured. An outer diameter measuring apparatus according to any one of the above.

前記Ｖ型シュートは、被測定物の上下方向の移動を規制する天面ガイド、左右方向の移動を規制する側面ガイド、又は被測定物に対して一定圧で接触し得る押さえ手段の被測定物との位置関係を一定に維持するよう移動可能とされたことを特徴とする請求項９記載の外径測定装置。 The V-shaped chute is a top surface guide that restricts the movement of the object to be measured in the vertical direction, a side guide that restricts the movement in the left-right direction, or the object to be measured that is capable of contacting the object to be measured with a constant pressure. The outer diameter measuring device according to claim 9, wherein the outer diameter measuring device is movable so as to maintain a constant positional relationship.

前記Ｖ型シュートにおける前記外径測定手段よりも始端側には、長さ、外径又は表面色が設定と比べて著しく異なる被測定物を検出し、当該Ｖ型シュートから取り除く異品排除手段が設けられたことを特徴とする請求項１〜請求項１０の何れか１つに記載の外径測定装置。 On the start end side of the outer diameter measuring means in the V-shaped chute, there is a foreign object eliminating means for detecting a measured object whose length, outer diameter or surface color is significantly different from the setting and removing it from the V-shaped chute. The outer diameter measuring device according to claim 1, wherein the outer diameter measuring device is provided.

被測定物を前記Ｖ型シュートの始端側に供給する供給部と、
前記排出手段で排出された被測定物を寸法別に選別する選別部と、
を有した選別装置に適用されるとともに、
前記供給部は、被測定物の姿勢を一定に保ちつつ供給する回転フィーダ又は直進フィーダであることを特徴とする請求項１〜請求項１１の何れか１つに記載の外径測定装置。 A supply unit for supplying an object to be measured to the start side of the V-shaped chute;
A sorting section that sorts the object to be measured discharged by the discharging means according to dimensions;
Is applied to a sorting apparatus having
The outer diameter measuring device according to any one of claims 1 to 11, wherein the supply unit is a rotary feeder or a rectilinear feeder that supplies an object to be measured while maintaining a constant posture.

前記選別部は、前記排出手段で排出された被測定物を順次受けるためのポケットが周方向に複数形成された円板状部材から成るとともに、各ポケットには、前記外径測定手段で測定された外径に基づき被測定物を所定位置に排出し得るシャッターが設けられたことを特徴とする請求項１２記載の外径測定装置。 The sorting unit is composed of a disk-shaped member in which a plurality of pockets for receiving the objects to be measured sequentially discharged by the discharging means are formed in the circumferential direction, and each pocket is measured by the outer diameter measuring means. 13. The outer diameter measuring apparatus according to claim 12, further comprising a shutter capable of discharging an object to be measured to a predetermined position based on the outer diameter.

前記排出手段と選別部との間における被測定物の通過を確認し得る通過確認センサと、
前記円板状部材の回転位置を検出する回転位置検出センサと、
を具備するとともに、これら通過確認センサと回転位置検出センサとに基づいてポケットで受けた被測定物を何れの位置で排出すべきかを把握し前記シャッターを制御し得ることを特徴とする請求項１３記載の外径測定装置。 A passage confirmation sensor capable of confirming the passage of the object to be measured between the discharging means and the sorting section;
A rotational position detection sensor for detecting the rotational position of the disk-shaped member;
14. The apparatus according to claim 13, wherein the shutter can be controlled by grasping at which position the measurement object received in the pocket should be discharged based on the passage confirmation sensor and the rotational position detection sensor. The outer diameter measuring apparatus as described.