JP6551576B2 - Automatic centering device and automatic centering method of work, inspection or measuring device and inspection or measuring method - Google Patents

Automatic centering device and automatic centering method of work, inspection or measuring device and inspection or measuring method Download PDF

Info

Publication number
JP6551576B2
JP6551576B2 JP2018109481A JP2018109481A JP6551576B2 JP 6551576 B2 JP6551576 B2 JP 6551576B2 JP 2018109481 A JP2018109481 A JP 2018109481A JP 2018109481 A JP2018109481 A JP 2018109481A JP 6551576 B2 JP6551576 B2 JP 6551576B2
Authority
JP
Japan
Prior art keywords
workpiece
work
movable
centering
movable table
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.)
Active
Application number
JP2018109481A
Other languages
Japanese (ja)
Other versions
JP2019007949A (en
Inventor
中野 誠
誠 中野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NSK Ltd
Original Assignee
NSK Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NSK Ltd filed Critical NSK Ltd
Priority to JP2018109481A priority Critical patent/JP6551576B2/en
Publication of JP2019007949A publication Critical patent/JP2019007949A/en
Application granted granted Critical
Publication of JP6551576B2 publication Critical patent/JP6551576B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Jigs For Machine Tools (AREA)

Description

本発明は、ワークの自動芯出し装置及び自動芯出し方法、並びに、検査又は測定装置及び検査又は測定方法に関し、より詳細にはワークの芯ずれを自動的に補正するワークの自動芯出し装置及び自動芯出し方法、並びに、検査又は測定装置及び検査又は測定方法に関する。   The present invention relates to an apparatus and method for automatically aligning a workpiece, and an inspection or measuring apparatus and method for inspecting and measuring an workpiece. More specifically, an apparatus for automatically aligning a workpiece that automatically corrects misalignment of the workpiece and The present invention relates to an automatic centering method, and an inspection or measurement apparatus and an inspection or measurement method.

軸受用軌道輪などのワークを回転させて各種の検査や測定を行う場合、ワークの中心と回転する測定台の回転軸とを合わせる、いわゆる「芯出し」作業が必要になる。特に、ワークが大型で重量が大きい場合、測定台とワークとの摩擦力も大きくなるため、ワークを押して位置を修正しようとしてもワークが変形するため、芯出しが難しいという問題があった。   When various inspections and measurements are performed by rotating a workpiece such as a bearing ring, a so-called “centering” operation is required in which the center of the workpiece is aligned with the rotating shaft of the rotating measuring table. In particular, when the work is large and heavy, the frictional force between the measurement table and the work also increases, and there is a problem that centering is difficult because the work is deformed even if the position is corrected by pushing the work.

従来、回転する基準テーブルと、基準テーブル上に載置され、ワークが固定される可動テーブルと、可動テーブルを基準テーブルに対して固定状態と非固定状態とに、油圧によって切り換える固定切換手段と、可動テーブルを流体の圧力によって基準テーブルから浮上させる浮上手段と、可動テーブルに固定されたワークの偏心方向及び偏心量を測定する測定装置と、ワークを可動テーブルと共に水平方向に移動させる水平移動機構と、を備え、測定装置により測定されたワークの偏心方向及び偏心量に基づいてワークを移動させて芯出しを行うようにしたワークの自動芯出し装置が開示されている(例えば、特許文献1参照。)。   Conventionally, a rotating reference table, a movable table mounted on the reference table and to which a work is fixed, a fixed switching means for switching the movable table between a fixed state and an unfixed state with respect to the reference table by hydraulic pressure, Lifting means for raising the movable table from the reference table by the pressure of the fluid, a measuring device for measuring the eccentric direction and the amount of eccentricity of the workpiece fixed to the movable table, and a horizontal movement mechanism for moving the workpiece horizontally with the movable table , And a workpiece automatic centering device that performs centering by moving the workpiece based on the eccentric direction and the amount of eccentricity measured by the measuring device is disclosed (for example, see Patent Document 1). ).

また、ワークを載置し、基準軸周りに回転可能な面板と、ワークの偏心方向及び偏心量を測定する測定器と、面板を押圧して移動させるプッシャーと、測定器の測定結果に応じて面板の回転及びプッシャーを制御してワークの軸を基準軸と一致させる芯出し手段と、を備えるワークの自動芯出し装置が知られている(例えば、特許文献2参照。)。   Also, according to the measurement result of the measuring plate, a face plate on which the work is placed and rotatable around the reference axis, a measuring instrument that measures the eccentric direction and the eccentric amount of the work, a pusher that presses and moves the face plate 2. Description of the Related Art There is known an automatic workpiece centering device that includes centering means that controls rotation of a face plate and a pusher to align a workpiece axis with a reference axis (see, for example, Patent Document 2).

特開2011−194530号公報JP, 2011-194530, A 特開2011−83829号公報JP 2011-83829 A

しかしながら、特許文献1の自動芯出し装置では、固定切換手段として、油圧を使用すると共に、浮上手段として、エア圧を使用しており、構造が複雑であるという課題があった。また、水平移動機構は可動テーブルを所定の方向にのみ水平移動させる機構であるため、ワークの芯出しを行う際には、測定装置により測定されたワークの偏心方向に基づいて基準テーブルを回転させ、その後、測定された偏心量の分だけ、水平移動機構により可動テーブルと共にワークを水平移動させており、サイクルタイムが長くなるという課題がある。   However, the automatic centering device of Patent Document 1 uses a hydraulic pressure as the fixed switching means and an air pressure as the floating means, which has a problem that the structure is complicated. In addition, since the horizontal movement mechanism is a mechanism that horizontally moves the movable table only in a predetermined direction, when performing work centering, the reference table is rotated based on the eccentric direction of the work measured by the measuring device. Thereafter, the workpiece is horizontally moved together with the movable table by the horizontal movement mechanism by the amount of the measured eccentricity, and there is a problem that the cycle time becomes long.

また、特許文献2の自動芯出し装置は、主軸テーブルに対して面板を浮上させる機構が、油圧により作動するため、作動油回収機構などが必要となって設備が大型、且つ複雑となる。また、作動油により作業環境が汚染される可能性があり、改善の余地があった。さらに、特許文献2の芯出し装置においても、ワークを押圧するプッシャーの押圧方向と、ワークの偏心方向とを一致するように、面板を回転させる必要があり、サイクルタイムが長くなるという課題がある。   Further, in the automatic centering device of Patent Document 2, since the mechanism for floating the face plate with respect to the spindle table is operated by hydraulic pressure, a hydraulic oil recovery mechanism is required, and the equipment becomes large and complicated. In addition, there is a possibility that the working environment may be contaminated by hydraulic oil, and there is room for improvement. Furthermore, the centering device of Patent Document 2 also has a problem in that it is necessary to rotate the face plate so that the pressing direction of the pusher that presses the workpiece matches the eccentric direction of the workpiece, and the cycle time becomes long. .

本発明は、前述した課題に鑑みてなされたものであり、その目的は、簡潔な構造で、且つ、サイクルタイムの短いワークの芯出し作業を行うことができるワークの自動芯出し装置及び自動芯出し方法、並びに、検査又は測定装置及び検査又は測定方法を提供することにある。   The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an automatic workpiece centering device and an automatic centering device that can perform a workpiece centering operation with a simple structure and a short cycle time. It is to provide a dispensing method, an inspection or measurement device, and an inspection or measurement method.

本発明の上記目的は、下記の構成により達成される。
(1) 回転駆動される回転テーブルと、
前記回転テーブル上に配設され、ワークが載置される少なくとも一つのワークテーブルと、
を備え、前記ワークの芯出しを行うワークの自動芯出し装置であって、
前記ワークテーブルは、前記ワークを載置するワーク載置面が設けられ、圧縮空気の圧力によって浮上して任意の方向に水平移動可能な可動台と、前記可動台を所定の原点位置に復帰させる原点復帰機構と、を有し、
前記回転テーブルと別体で、前記回転テーブルの周囲に90°の周方向間隔で互いに配置され、前記ワークが当接可能な当接部を備え、前記ワークの位置決めを行う2台のストッパ装置と、
前記回転テーブルの周囲で、前記2台のストッパ装置に対して円周方向等間隔で、該2台のストッパ装置から遠い側の中間位置に配置され、前記可動台と共に浮上した前記ワークを前記ストッパ装置の当接部に当接させることで、前記ワークの中心が前記回転テーブルの中心に一致するように前記ワーク又は前記可動台を押圧する押圧装置と、
をさらに備えるワークの自動芯出し装置を用いた検査又は測定のためのワークの自動芯出し方法であって、
前記ワークテーブルに圧縮空気を供給して、前記可動台を圧縮空気の圧力によって浮上させる工程と、
前記原点復帰機構の位置決めピンを上昇させて、前記可動台を所定の原点位置に復帰する工程と、
前記ワークを前記可動台のワーク載置面上に載置する工程と、
前記ワークの載置工程の前又は後に、前記原点復帰機構の位置決めピンを下降させる工程と、
前記押圧装置により前記ワーク又は前記可動台を押圧して前記ワークを前記可動台と共に水平方向に移動させて、前記ワークを前記ストッパ装置に当接させ、前記ワークを芯出しする工程と、
前記ワークテーブルへの圧縮空気の供給を遮断して、前記可動台を下降させる工程と、を備えるワークの自動芯出し方法。
(2) 回転駆動される回転テーブルと、
前記回転テーブル上に配設され、ワークが載置される少なくとも一つのワークテーブルと、
を備え、前記ワークの芯出しを行うワークの自動芯出し装置であって、
前記ワークテーブルは、前記ワークを載置するワーク載置面が設けられ、圧縮空気の圧力によって浮上して任意の方向に水平移動可能な可動台と、前記可動台が浮上した状態で、前記可動台を所定の原点位置に復帰させる原点復帰機構と、を有し、
前記回転テーブルと別体で、前記回転テーブルの周囲に90°の周方向間隔で互いに配置され、前記ワークが当接可能な当接部を備え、前記ワークの位置決めを行う2台のストッパ装置と、
前記回転テーブルの周囲で、前記2台のストッパ装置に対して円周方向等間隔で、該2台のストッパ装置から遠い側の中間位置に配置され、前記ワークを前記ストッパ装置の当接部に当接させることで、前記ワークの中心が前記回転テーブルの中心に一致するように前記ワーク又は前記可動台を押圧する押圧装置と、をさらに備え、
前記原点復帰機構は、前記可動台の下面に形成されたテーパ状凹部と、該テーパ状凹部に係合するように、先端がテーパ状に形成され、上下方向に移動可能な位置決めピンと、を有するワークの自動芯出し装置。
(3) 前記当接部の位置は、前記ワークの外径に応じて調整可能である(2)に記載のワークの自動芯出し装置。
(4) 前記ストッパ装置の当接部が、上下方向に移動可能である(2)又は(3)に記載のワークの自動芯出し装置。
(5) (2)に記載のワークの自動芯出し装置を用いたワークの自動芯出し方法であって、
前記ワークテーブルに圧縮空気を供給して、前記可動台を圧縮空気の圧力によって浮上させる工程と、
前記ワークを前記可動台のワーク載置面上に載置する工程と、
前記押圧装置により前記ワーク又は前記可動台を押圧して前記ワークを前記可動台と共に水平方向に移動させて、前記ワークを前記ストッパ装置に当接させ、前記ワークを芯出しする工程と、
前記ワークテーブルへの圧縮空気の供給を遮断して、前記可動台を下降させる工程と、を備えるワークの自動芯出し方法。
(6) 前記可動台の浮上工程の後に、前記原点復帰機構の位置決めピンを上昇させて、前記可動台を所定の原点位置に復帰する工程と、
前記ワークの載置工程の前又は後に、前記原点復帰機構の位置決めピンを下降させる工程と、
を備える(5)に記載のワークの自動芯出し方法。
(7) (2)〜(4)のいずれかに記載のワークの自動芯出し装置を備える検査又は測定装置。
(8) (1)、(5)及び(6)のいずれかに記載のワークの自動芯出し方法を備える検査又は測定方法。
The above object of the present invention is achieved by the following constitution.
(1) A rotary table driven to rotate
At least one work table disposed on the turntable and on which a workpiece is placed;
A work centering device for centering the work, comprising:
The work table is provided with a work placement surface on which the work is placed, and a movable base that is floated by the pressure of compressed air and can move horizontally in an arbitrary direction, and the movable base is returned to a predetermined origin position. And a home position return mechanism,
Two stopper devices for positioning the work, including separate contact parts that are separate from the rotary table and arranged at circumferential intervals of 90 ° around the rotary table and against which the work can abut ,
Around the rotary table, the workpiece is arranged at an intermediate position on the side far from the two stopper devices at equal intervals in the circumferential direction with respect to the two stopper devices, and the workpiece floating with the movable table is moved to the stopper A pressing device that presses the workpiece or the movable table so that the center of the workpiece coincides with the center of the rotary table by contacting the contact portion of the device;
An automatic workpiece centering method for inspection or measurement using an automatic workpiece centering device further comprising:
Supplying compressed air to the work table to raise the movable table by the pressure of the compressed air;
Raising the positioning pin of the home position return mechanism to return the movable base to a predetermined home position;
Placing the workpiece on the workpiece mounting surface of the movable table;
Before or after the work placement step, lowering the positioning pin of the origin return mechanism;
Pressing the workpiece or the movable table with the pressing device to move the workpiece in the horizontal direction together with the movable table, bringing the workpiece into contact with the stopper device, and centering the workpiece;
Cutting the supply of compressed air to the work table and lowering the movable table;
(2) A rotary table driven to rotate
At least one work table disposed on the rotary table and on which a work is placed;
A work centering device for centering the work, comprising:
The work table is provided with a work placement surface on which the work is placed, the movable table which is floated by the pressure of compressed air and can move horizontally in an arbitrary direction, and the movable table is movable in a state where the movable table is lifted. A home position return mechanism for returning the base to a predetermined home position;
Two stopper devices that are separate from the rotary table and are arranged around the rotary table at intervals of 90 ° in the circumferential direction so as to be capable of abutting the workpiece and positioning the workpiece. ,
Around the rotary table, it is disposed at an intermediate position on the side far from the two stopper devices at equal intervals in the circumferential direction with respect to the two stopper devices, and the workpiece is brought into contact with the stopper device. A pressing device that presses the workpiece or the movable table so that the center of the workpiece coincides with the center of the rotary table by contacting the workpiece;
The origin return mechanism includes a tapered recess formed on the lower surface of the movable base, and a positioning pin having a tip formed in a tapered shape so as to engage with the tapered recess and movable in the vertical direction. Automatic centering device for workpieces.
(3) The automatic centering device for a workpiece according to (2), wherein the position of the contact portion can be adjusted according to the outer diameter of the workpiece.
(4) The automatic centering device for a workpiece according to (2) or (3), wherein the contact portion of the stopper device is movable in the vertical direction.
(5) An automatic workpiece centering method using the workpiece automatic centering device according to (2),
Supplying compressed air to the work table to raise the movable table by the pressure of the compressed air;
Placing the workpiece on the workpiece mounting surface of the movable table;
Pressing the workpiece or the movable table by the pressing device to move the workpiece horizontally with the movable platform to abut the workpiece against the stopper device to center the workpiece;
Cutting the supply of compressed air to the work table and lowering the movable table;
(6) A step of raising the positioning pin of the origin return mechanism after the step of floating the movable table to return the movable table to a predetermined origin position;
Before or after the work placement step, lowering the positioning pin of the origin return mechanism;
(5) The automatic centering method of a work according to (5).
(7) The inspection or measuring device provided with the automatic centering device of a work given in either of (2)-(4).
(8) An inspection or measurement method including the automatic centering method for a workpiece according to any one of (1), (5), and (6).

本発明のワークの自動芯出し装置によれば、ワークテーブルは、ワークを載置するワーク載置面が設けられて圧縮空気の圧力によって浮上して任意の方向に水平移動可能な可動台を有し、また、ワークが当接可能な当接部を備え、ワークの位置決めを行う少なくとも一つのストッパ装置と、ワークをストッパ装置の当接部に当接させるようにワーク又は可動台を押圧する押圧装置と、を備える。したがって、可動台を圧縮空気の圧力によって浮上させるので、大型で重量の大きいワークであっても極めて低い摩擦力でワークを水平移動することができ、また、油圧を用いる自動芯出し装置と比較しても、作業環境を悪化させる可能性がなく、簡潔な構造で、装置を構成することができる。さらに、偏芯量や偏芯方向を測定せずにワークをストッパ装置に当接することで芯出しが行われるので、サイクルタイムを短縮することができる。さらに、原点復帰機構の位置決めピンによって、ワークの芯出し作業のための準備を確実、且つ迅速に行うことができる。   According to the automatic centering device for workpieces of the present invention, the workpiece table has a movable table that is provided with a workpiece mounting surface on which the workpiece is mounted, and that floats by the pressure of compressed air and can move horizontally in any direction. In addition, at least one stopper device for positioning the workpiece provided with an abutment portion on which the workpiece can abut, and pressing the workpiece or the movable table so that the workpiece abuts on the abutment portion of the stopper device A device. Therefore, since the movable table is lifted by the pressure of compressed air, even a large and heavy work can move the work horizontally with extremely low frictional force, and compared with an automatic centering device using oil pressure. However, there is no possibility of deteriorating the work environment, and the apparatus can be configured with a simple structure. Furthermore, since the centering is performed by contacting the workpiece to the stopper device without measuring the eccentric amount or the eccentric direction, the cycle time can be shortened. Furthermore, preparation for the centering operation of the workpiece can be performed reliably and quickly by the positioning pin of the origin returning mechanism.

また、本発明のワークの自動芯出し方法によれば、ワークテーブルに圧縮空気を供給して、可動台を圧縮空気の圧力によって浮上させる工程と、ワークを可動台のワーク載置面上に載置する工程と、押圧装置によりワーク又は可動台を押圧してワークを可動台と共に水平方向に移動させて、ワークをストッパ装置の当接部に当接させ、ワークを芯出しする工程と、ワークテーブルへの圧縮空気の供給を遮断して、可動台を下降させる工程と、を備える。したがって、可動台を圧縮空気の圧力によって浮上させるので、大型で重量の大きいワークであっても極めて低い摩擦力でワークを水平移動することができ、また、油圧を用いる自動芯出し装置と比較しても、作業環境を悪化させる可能性がなく、簡潔な構造で、装置を構成することができる。また、偏芯量や偏芯方向を測定せずにワークをストッパ装置に当接することで芯出しが行われるので、サイクルタイムを短縮することができる。さらに、原点復帰機構の位置決めピンによって、ワークの芯出し作業のための準備を確実、且つ迅速に行うことができる。   In addition, according to the automatic centering method for a workpiece of the present invention, a step of supplying compressed air to the workpiece table and causing the movable table to float by the pressure of the compressed air, and a workpiece to be mounted on the workpiece mounting surface of the movable table. Placing the work or movable base by the pressing device to move the work horizontally with the movable base, bringing the work into contact with the contact portion of the stopper device, and centering the work; Cutting the supply of compressed air to the table and lowering the movable table. Therefore, since the movable table is lifted by the pressure of compressed air, even a large and heavy work can move the work horizontally with extremely low frictional force, and compared with an automatic centering device using oil pressure. However, there is no possibility of deteriorating the work environment, and the apparatus can be configured with a simple structure. Further, since the centering is performed by contacting the workpiece with the stopper device without measuring the eccentric amount or the eccentric direction, the cycle time can be shortened. Furthermore, preparation for the centering operation of the workpiece can be performed reliably and quickly by the positioning pin of the origin returning mechanism.

本発明に係るワークの自動芯出し装置の構成を示す平面図である。It is a top view which shows the structure of the automatic centering apparatus of the workpiece | work which concerns on this invention. 図1の自動芯出し装置の縦断面図である。It is a longitudinal cross-sectional view of the automatic centering apparatus of FIG. (a)はワークテーブルの平面図、(b)は(a)のIII−III線断面図、(c)は(a)のIII´−III´線断面図である。(A) is a top view of a worktable, (b) is the III-III sectional view taken on the line of (a), (c) is the III'-III 'sectional view taken on the line (a). 第1変形例の自動芯出し装置の構成を示す平面図である。It is a top view which shows the structure of the automatic centering apparatus of a 1st modification. 第2変形例の自動芯出し装置の構成を示す平面図である。It is a top view which shows the structure of the automatic centering apparatus of a 2nd modification.

以下、本発明の一実施形態に係る自動芯出し装置及び自動芯出し方法を図面に基づいて詳細に説明する。   Hereinafter, an automatic centering device and an automatic centering method according to an embodiment of the present invention will be described in detail with reference to the drawings.

図1及び図2に示すように、自動芯出し装置10は、サーボモータ(駆動装置)17により回転駆動される回転テーブル11と、ワークWが載置される複数(本実施形態では、4台)のエアスライドテーブル(ワークテーブル)20と、ワークWの位置決めを行う複数(本実施形態では、2台)のストッパ装置30と、エアスライドテーブル20上に積載されたワークWを押圧してワークWを水平方向に移動させるロボットなどで構成される押圧装置60と、を備える。   As shown in FIGS. 1 and 2, the automatic centering device 10 includes a rotary table 11 that is rotationally driven by a servo motor (drive device) 17, and a plurality of (in this embodiment, four) work Ws. ), The plurality of (two in the present embodiment) stopper devices 30 for positioning the work W, and the work W loaded on the air slide table 20 by pressing the work And a pressing device 60 configured by a robot or the like that moves W in the horizontal direction.

回転テーブル11は、ケース12に対して複数のベアリング13を介して回転自在に支持された回転軸14の上端に固定されている。また、回転軸14の下端には、動力伝達部材16が取り付けられており、回転軸14には、動力伝達部材16を介して、サーボモータ17からの駆動力が伝達される。これにより、回転テーブル11は、サーボモータ17の駆動力によって、回転軸14の軸芯CLを回転中心として時計方向及び反時計方向の両方向に回転する。   The rotary table 11 is fixed to the upper end of a rotary shaft 14 that is rotatably supported by a case 12 via a plurality of bearings 13. A power transmission member 16 is attached to the lower end of the rotating shaft 14, and a driving force from the servo motor 17 is transmitted to the rotating shaft 14 via the power transmitting member 16. Thereby, the rotary table 11 is rotated in both the clockwise and counterclockwise directions around the axis CL of the rotating shaft 14 by the driving force of the servo motor 17.

4台のエアスライドテーブル20は、回転テーブル11上で、軸芯CL周りに等間隔(90°間隔)に配置されており、例えば、軸受用軌道輪などのワークWを載置する。各エアスライドテーブル20は、図3も参照して、回転テーブル11に固定される略直方体状のテーブル本体22と、圧縮空気の圧力によって浮上してテーブル本体22に対して任意の方向に水平移動自在に配設される可動台40と、を備える。   The four air slide tables 20 are arranged on the rotary table 11 at an equal interval (90 ° interval) around the axis CL, and, for example, a work W such as a bearing race ring is placed thereon. Referring to FIG. 3 as well, each air slide table 20 is substantially rectangular parallelepiped table main body 22 fixed to rotary table 11, and floats by the pressure of compressed air and moves horizontally in any direction with respect to table main body 22. And a movable stand 40 freely disposed.

可動台40は、テーブル本体22内に収容され、上下に圧縮空気の圧力を受ける表面を有する略直方体状の基部41と、テーブル本体22の上方に配置され、上面にワーク載置面42aが設けられた略直方体状のワーク載置部42と、基部41の短手方向中央部にて基部41とワーク載置部42とを接続する接続部43と、を有する。基部41と接続部43の長辺は、略等しい長さに形成される一方、ワーク載置部42の長辺は、基部41及び接続部43の長辺より長く形成されている。以下、図3(a)〜(c)に示すように、可動台40の長手方向、即ち、基部41、ワーク載置部42、及び接続部43の長手方向をX方向と称し、可動台40の短手方向、即ち、基部41、ワーク載置部42、及び接続部43の短手方向をY方向と称する。   The movable stand 40 is accommodated in the table main body 22 and is disposed above the table main body 22 with a substantially rectangular parallelepiped base 41 having a surface that receives the pressure of compressed air at the upper and lower sides, and a work placement surface 42 a is provided on the upper surface And a connecting portion 43 that connects the base portion 41 and the work mounting portion 42 at the central portion in the short direction of the base portion 41. The long sides of the base portion 41 and the connection portion 43 are formed to have substantially the same length, while the long sides of the workpiece placement portion 42 are formed to be longer than the long sides of the base portion 41 and the connection portion 43. Hereinafter, as shown in FIGS. 3A to 3C, the longitudinal direction of the movable table 40, that is, the longitudinal direction of the base 41, the workpiece placement unit 42, and the connection unit 43 is referred to as the X direction. , That is, the short direction of the base 41, the work placing part 42, and the connecting part 43 is referred to as a Y direction.

テーブル本体22は、可動台40の基部41の上下の表面とそれぞれ対向する、下側本体部23及び一対の上側本体部24,24と、下側本体部23及び一対の上側本体部24,24に挟持され、基部41のY方向側面を覆う一対の短手側壁部25,25と、下側本体部23のX方向端面に固定され、基部41及び接続部43のX方向側面を覆う一対の長手側壁部26と、を有する。一対の上側本体部24,24は、可動台40の接続部43を収容するように、互いに離間した状態で、X方向に沿って平行に配置されている。   The table main body 22 has a lower main body portion 23 and a pair of upper main body portions 24 and 24, and a lower main body portion 23 and a pair of upper main body portions 24 and 24, which face the upper and lower surfaces of the base 41 of the movable base 40, respectively. A pair of short side wall portions 25, 25 that are sandwiched between the X-side end surfaces of the base portion 41 and the X-direction side surfaces of the lower body portion 23 and that cover the X-direction side surfaces of the base portion 41 and the connecting portion 43. And a longitudinal side wall portion 26. The pair of upper main body portions 24 and 24 are arranged in parallel along the X direction in a state of being separated from each other so as to accommodate the connection portion 43 of the movable base 40.

一対の上側本体部24,24と接続部43との間、及び、一対の短手側壁部25,25と基部41との間には、Y方向隙間y1,y2がそれぞれ設けられている。また、一対の長手側壁部26と、接続部43及び基部41との間には、X方向隙間x1がそれぞれ設けられている。これにより、可動台40は、Y方向隙間y1、y2(具体的には、y1とy2のうち小さい方)及びX方向隙間x1の範囲内で、テーブル本体22に対して水平移動自在に配置される。   Y direction gaps y1 and y2 are provided between the pair of upper main body portions 24 and 24 and the connection portion 43 and between the pair of short side wall portions 25 and 25 and the base portion 41, respectively. Further, an X-direction gap x <b> 1 is provided between the pair of long side wall portions 26, the connection portion 43, and the base portion 41. Accordingly, the movable table 40 is disposed so as to be horizontally movable with respect to the table body 22 within the range of the Y-direction gaps y1 and y2 (specifically, the smaller one of y1 and y2) and the X-direction gap x1. Ru.

基部41の厚さは、短手側壁部25の厚みより若干小さく設定されており、基部41は、下側本体部23の上面23a、及び一対の上側本体部24,24の下面24aとの間で、上下方向に僅かな隙間を持って配置されている。   The thickness of the base portion 41 is set slightly smaller than the thickness of the short side wall portion 25, and the base portion 41 is between the upper surface 23 a of the lower body portion 23 and the lower surfaces 24 a of the pair of upper body portions 24, 24. Thus, they are arranged with a slight gap in the vertical direction.

下側本体部23の上面23a、及び一対の上側本体部24,24の下面24aには、圧縮空気を吐出するための溝28,29が形成されている。溝28,29には、下側本体部23、上側本体部24,24、及び短手側壁部25に設けられたエア通路46が連通している。エア通路46は、更に、回転軸14を軸方向に貫通するエア供給用の穴(図示せず)につながって、不図示のエアコンプレッサに接続されるエア通路(図示せず)に連通する。   Grooves 28 and 29 for discharging compressed air are formed in the upper surface 23a of the lower body portion 23 and the lower surfaces 24a of the pair of upper body portions 24 and 24. An air passage 46 provided in the lower body portion 23, the upper body portions 24 and 24, and the short side wall portion 25 communicates with the grooves 28 and 29. The air passage 46 is further connected to an air supply hole (not shown) axially penetrating the rotary shaft 14 to communicate with an air passage (not shown) connected to an air compressor (not shown).

エアコンプレッサからエア通路46を介して供給される圧縮空気は、溝28,29から吐出することでテーブル本体22と、可動台40との間に静圧軸受を構成し、可動台40をテーブル本体22に対して浮上させて、極めて摩擦抵抗が少ない状態で、可動台40を任意の方向に水平移動可能とする。エア通路46の適宜の位置には、オリフィスなどの固定絞り、或いは板バネなどを用いた可変絞りを配設して、圧縮空気を安定して溝28,29に供給することが望ましい。
なお、可動台40及びテーブル本体22は、静圧軸受を構成し、ワークWを載置する可動台40が任意の方向に水平移動自在となるものであれば、本実施形態に限定されない。
The compressed air supplied from the air compressor through the air passage 46 is discharged from the grooves 28 and 29 to form a static pressure bearing between the table main body 22 and the movable base 40, and the movable base 40 is connected to the table main body. The movable table 40 is allowed to move horizontally in any direction with a slight friction resistance. It is desirable to provide a fixed throttle such as an orifice or a variable throttle using a leaf spring at an appropriate position of the air passage 46 so that the compressed air is stably supplied to the grooves 28 and 29.
The movable table 40 and the table main body 22 constitute a hydrostatic bearing, and are not limited to the present embodiment as long as the movable table 40 on which the workpiece W is placed can move horizontally in an arbitrary direction.

また、図2に示すように、自動芯出し装置10は、エアスライドテーブル20毎に、可動台40を所定の原点位置に復帰させる原点復帰機構50を備える。原点復帰機構50は、回転テーブル11の孔内、及びテーブル本体22の孔に固定されたブッシュ54内を摺動し、先端がテーパ状に形成された一対の位置決めピン51と、位置決めピン51に対向して可動台40の下面に形成された一対のテーパ状凹部52と、位置決めピン51を上下方向に駆動するエアシリンダ53と、を備える。一対の位置決めピン51は、下側本体部23に固定されたブッシュ54に摺動可能に嵌合して、可動台40に接近、又は離間する方向に移動する。   As shown in FIG. 2, the automatic centering device 10 includes an origin return mechanism 50 that returns the movable base 40 to a predetermined origin position for each air slide table 20. The origin return mechanism 50 slides in the hole of the rotary table 11 and the bush 54 fixed to the hole of the table main body 22, and a pair of positioning pins 51 having a tapered tip and a positioning pin 51. A pair of tapered recesses 52 formed on the lower surface of the movable table 40 so as to face each other and an air cylinder 53 for driving the positioning pins 51 in the vertical direction are provided. The pair of positioning pins 51 are slidably fitted to the bushes 54 fixed to the lower main body portion 23, and move toward or away from the movable table 40.

原点復帰機構50は、エアシリンダ53を作動して、一対の位置決めピン51を上方に移動させ、テーパ状の先端を一対のテーパ状凹部52に係合させることで、可動台40を原点位置に復帰させる。これにより、ワークWの芯出し作業を繰り返し行っても、芯出し作業を行う度に原点復帰機構50により可動台40の位置を元に戻すことで、可動台40の移動可能距離を確保し、芯出し動作を確実に行うことができる。   The origin return mechanism 50 operates the air cylinder 53 to move the pair of positioning pins 51 upward and engage the tapered tips with the pair of tapered recesses 52 to bring the movable base 40 to the origin position. Wake up. Thereby, even if the alignment work of the workpiece W is repeated, the movable distance of the movable table 40 is secured by returning the position of the movable table 40 by the origin return mechanism 50 every time the alignment operation is performed, The centering operation can be performed reliably.

ストッパ装置30は、図1及び図2に示すように、回転軸14の軸芯CLに対して直交する平面内において、エアスライドテーブル20の側方に90°の周方向間隔で2台配置されている。2台の水平移動機構32の軸中心線Cは、回転テーブル11の軸芯CLを通るように設定されている。   As shown in FIGS. 1 and 2, two stopper devices 30 are arranged at a circumferential interval of 90 ° on the side of the air slide table 20 in a plane orthogonal to the axis CL of the rotating shaft 14. ing. The axis center line C of the two horizontal movement mechanisms 32 is set so as to pass through the axis core CL of the turntable 11.

それぞれのストッパ装置30は、固定部材38と、上下移動機構39によって固定部材38に対して上下方向に移動する支持部材34と、水平移動機構32によって支持部材34に対して水平方向に移動する当接部材31と、を有する。上下移動機構39は、支持部材34を上下方向に案内するリニアガイド37と、不図示のサーボモータの駆動力によって支持部材34を上下方向に移動させるボールねじ機構36と、を有する。また、水平移動機構32も、当接部材31を水平方向に案内するリニアガイド33と、サーボモータ35の駆動力によって当接部材31を水平方向に移動させる不図示のボールねじ機構と、を有する。当接部材31は、ワークWの外周面に当接する当接部31aを有し、水平移動機構32及び上下移動機構39によって、軸芯CLに向かって進退可能であると共に、上下方向に移動可能である。   Each stopper device 30 includes a fixing member 38, a support member 34 that moves in the vertical direction with respect to the fixing member 38 by the vertical movement mechanism 39, and a contact member that moves in the horizontal direction with respect to the support member 34 by the horizontal movement mechanism 32. And a contact member 31. The vertical movement mechanism 39 includes a linear guide 37 that guides the support member 34 in the vertical direction, and a ball screw mechanism 36 that moves the support member 34 in the vertical direction by a driving force of a servo motor (not shown). The horizontal movement mechanism 32 also includes a linear guide 33 that guides the contact member 31 in the horizontal direction and a ball screw mechanism (not shown) that moves the contact member 31 in the horizontal direction by the driving force of the servo motor 35. . The abutting member 31 has an abutting portion 31a that abuts on the outer peripheral surface of the workpiece W, and can be moved forward and backward toward the axis CL by the horizontal movement mechanism 32 and the vertical movement mechanism 39 and can be moved in the vertical direction. It is.

2台のストッパ装置30は、不図示の制御装置によってそれぞれ独立して制御される。制御装置は、多数のワークWに対して、それぞれのワークWの中心と、回転テーブル11の中心とが一致する当接部31aの位置を記憶している。そして、ワークWに応じてサーボモータ35を制御し、当接部31aをワークWごとに決められた所定の位置に位置させる。なお、ストッパ装置30を独立して制御することにより、ワークWの真円度や偏肉などの誤差に対して容易に対応することができる。   The two stopper devices 30 are independently controlled by a control device (not shown). The control device stores the position of the contact portion 31a where the center of each workpiece W and the center of the rotary table 11 coincide with each other for a number of workpieces W. Then, the servo motor 35 is controlled according to the workpiece W, and the contact portion 31a is positioned at a predetermined position determined for each workpiece W. In addition, by controlling the stopper device 30 independently, it is possible to easily cope with errors such as roundness and uneven thickness of the workpiece W.

押圧装置60は、90°の円周方向間隔で配置された2台の水平移動機構32に対して、円周方向等間隔(135°)離れた、2台の水平移動機構32から遠い側の中間位置に配置され、ワークWを水平方向に移動させて同時にストッパ装置30の当接部31aに当接させることで、ワークWの中心が回転テーブル11の中心に一致して、芯出しが行われる。   The pressing device 60 is located on the far side from the two horizontal movement mechanisms 32 that are spaced apart at equal circumferential intervals (135 °) with respect to the two horizontal movement mechanisms 32 arranged at a circumferential interval of 90 °. The center of the work W is aligned with the center of the rotary table 11 by moving the work W in the horizontal direction and simultaneously contacting the contact part 31a of the stopper device 30. It will be.

なお、ワークWの水平移動に際して、可動台40は、溝28,29から吐出する圧縮空気によりテーブル本体22から僅かに浮上しているので、摩擦抵抗が殆どない状態で任意の水平方向に移動可能である。   When the workpiece W is moved horizontally, the movable base 40 is slightly lifted from the table main body 22 by the compressed air discharged from the grooves 28 and 29, so that it can move in any horizontal direction with almost no frictional resistance. It is.

次に、自動芯出し装置10によるワークWの自動芯出し方法について説明する。
まず、不図示の制御装置からの指令に基づいて、ストッパ装置30のサーボモータ35を作動し、2つの当接部31aをワークWの外径や高さに合わせて所定の位置に予め移動させる。次いで、エア通路46を介してコンプレッサから供給される圧縮空気を、溝28,29から吐出させることで、可動台40を圧縮空気の圧力によってテーブル本体22に対して浮上させる。その後、原点復帰機構50のエアシリンダ53を作動させて、一対の位置決めピン51を、可動台40の下面に形成された一対のテーパ状凹部52に係合させて、可動台40を原点位置に位置させる。
Next, an automatic centering method of the work W by the automatic centering apparatus 10 will be described.
First, based on a command from a control device (not shown), the servo motor 35 of the stopper device 30 is operated, and the two contact portions 31a are moved in advance to predetermined positions in accordance with the outer diameter and height of the workpiece W. . Next, the compressed air supplied from the compressor via the air passage 46 is discharged from the grooves 28 and 29, so that the movable table 40 is floated with respect to the table body 22 by the pressure of the compressed air. Thereafter, the air cylinder 53 of the origin return mechanism 50 is operated to engage the pair of positioning pins 51 with the pair of tapered recesses 52 formed on the lower surface of the movable table 40, so that the movable table 40 is brought to the origin position. Position.

そして、ワークWが、2つの当接部31aに接触しないようにして、可動台40のワーク載置面42a上に載置される。その後、エアシリンダ53を作動させて、一対の位置決めピン51を下降させて、位置決めピン51とテーパ状凹部52との係合を解除する。なお、位置決めピン51の下降は、ワークWがワーク載置面42a上に載置される前であってもよい。   Then, the workpiece W is placed on the workpiece placement surface 42a of the movable base 40 so as not to contact the two contact portions 31a. Thereafter, the air cylinder 53 is operated to lower the pair of positioning pins 51 and release the engagement between the positioning pins 51 and the tapered recess 52. Note that the positioning pin 51 may be lowered before the workpiece W is placed on the workpiece placement surface 42a.

次いで、押圧装置60によりワークWを押圧して可動台40と共に、摩擦抵抗のない状態で水平方向に移動させ、ワークWを2台のストッパ装置30の当接部31aに同時に当接させてワークWの芯出しを行う。芯出しされた可動台40は、溝28,29への圧縮空気の供給を遮断することで下降させてテーブル本体22上に載置し、更に、2台のストッパ装置30の当接部31aを退避位置に後退させる。そして、サーボモータ17により回転テーブル11を回転させながら、ワークWの検査や測定などの作業を行う。   Subsequently, the workpiece W is pressed by the pressing device 60 and moved together with the movable table 40 in the horizontal direction without frictional resistance, and the workpiece W is simultaneously brought into contact with the contact portions 31a of the two stopper devices 30 to thereby move the workpiece. Center the W. The centered movable table 40 is lowered by blocking the supply of compressed air to the grooves 28 and 29 and placed on the table body 22, and the contact portions 31 a of the two stopper devices 30 are further moved. Retract to the retracted position. Then, work such as inspection and measurement of the workpiece W is performed while the rotary table 11 is rotated by the servo motor 17.

以上説明したように、本実施形態の自動芯出し装置10によれば、エアスライドテーブル20は、ワークWを載置するワーク載置面42aが設けられ、圧縮空気の圧力によって浮上して任意の方向に水平移動可能な可動台40を有し、また、ワークWが当接可能な当接部31aを備え、ワークWの位置決めを行う複数のストッパ装置30と、ワークWをストッパ装置30の当接部31aに当接させるようにワークWを押圧する押圧装置60と、を備える。したがって、可動台40を圧縮空気の圧力によって浮上させるので、大型で重量の大きいワークWであっても極めて低い摩擦力でワークWを水平移動することができ、また、油圧を用いる自動芯出し装置と比較しても、作業環境を悪化させる可能性がなく、簡潔な構造で、装置を構成することができる。さらに、偏芯量や偏芯方向を測定せずにワークWをストッパ装置30に当接することで芯出しが行われるので、サイクルタイムを短縮することができる。   As described above, according to the automatic centering device 10 of the present embodiment, the air slide table 20 is provided with the work placement surface 42a on which the work W is placed, and is lifted by the pressure of the compressed air to be arbitrarily A plurality of stopper devices 30 for positioning the workpiece W, and a contact portion 31a with which the workpiece W can be contacted. And a pressing device 60 that presses the workpiece W so as to contact the contact portion 31a. Therefore, since the movable table 40 is floated by the pressure of compressed air, the work W can be horizontally moved with extremely low friction even with a large-sized and heavy work W, and an automatic centering device using oil pressure Compared to the above, there is no possibility of deteriorating the working environment, and the apparatus can be configured with a simple structure. Furthermore, since the centering is performed by contacting the workpiece W with the stopper device 30 without measuring the amount of eccentricity or the direction of eccentricity, the cycle time can be shortened.

また、ストッパ装置30は、回転テーブル11の回転軸14に対して直交する平面内に、90°の周方向間隔で複数配設されるため、従来の芯出し装置のように、ワークWの偏心方向と水平移動機構の方向とを一致させる必要がなく、ワークWの1回の水平移動でワークWの芯出しを行うことができ、短時間で効率的な作業が可能となる。   Further, since a plurality of stopper devices 30 are disposed at a circumferential interval of 90 ° in a plane orthogonal to the rotation axis 14 of the turntable 11, the eccentricity of the workpiece W is offset like a conventional centering device. It is not necessary to match the direction with the direction of the horizontal movement mechanism, and the work W can be centered by one horizontal movement of the work W, so that efficient work can be performed in a short time.

当接部31aの位置は、ワークWの外径に応じて調整可能であるので、ワークWの真円度・偏肉などの誤差成分に対応して、ストッパ装置30を独立して駆動させることができる。また、多くの種類のワークWに容易に対応することができる。   Since the position of the contact portion 31a can be adjusted according to the outer diameter of the workpiece W, the stopper device 30 is driven independently according to error components such as roundness and thickness deviation of the workpiece W. Can. In addition, it is possible to easily cope with many types of work W.

また、エアスライドテーブル20は、可動台40を所定の原点位置に復帰させる原点復帰機構50を備えるため、可動台40の移動可能距離を確保し、芯出し動作を確実に行うことができる。   Further, since the air slide table 20 includes the origin return mechanism 50 that returns the movable base 40 to a predetermined origin position, the movable base 40 can be moved and the centering operation can be reliably performed.

また、本実施形態のワークの自動芯出し方法によれば、エアスライドテーブル20に圧縮空気を供給して、可動台40を圧縮空気の圧力によって浮上させる工程と、ワークWを可動台40のワーク載置面42a上に載置する工程と、押圧装置60によりワークWを押圧してワークWを可動台40と共に水平方向に移動させて、ワークWをストッパ装置30の当接部31aに当接させ、ワークWを芯出しする工程と、エアスライドテーブル20への圧縮空気の供給を遮断して、可動台40を下降させる工程と、を備える。したがって、可動台40を圧縮空気の圧力によって浮上させるので、大型で重量の大きいワークWであっても極めて低い摩擦力でワークWを水平移動することができ、また、油圧を用いる自動芯出し装置と比較しても、作業環境を悪化させる可能性がなく、簡潔な構造で、装置を構成することができる。さらに、偏芯量や偏芯方向を測定せずにワークWをストッパ装置30に当接することで芯出しが行われるので、サイクルタイムを短縮することができる。   In addition, according to the automatic centering method of the workpiece of this embodiment, the step of supplying the compressed air to the air slide table 20 to float the movable table 40 by the pressure of the compressed air, and the workpiece W of the movable table 40 The work W is pressed by the pressing device 60 to move the work W horizontally with the movable table 40 by the pressing device 60, and the work W is brought into contact with the contact portion 31a of the stopper device 30. And a step of centering the workpiece W and a step of lowering the movable table 40 by cutting off the supply of compressed air to the air slide table 20. Therefore, since the movable table 40 is floated by the pressure of compressed air, the work W can be horizontally moved with extremely low friction even with a large-sized and heavy work W, and an automatic centering device using oil pressure Compared to the above, there is no possibility of deteriorating the working environment, and the apparatus can be configured with a simple structure. Furthermore, since the centering is performed by contacting the workpiece W with the stopper device 30 without measuring the amount of eccentricity or the direction of eccentricity, the cycle time can be shortened.

また、可動台40の浮上工程の後に、原点復帰機構50の位置決めピン51を上昇させて、可動台40を所定の原点位置に復帰する工程と、ワークWの載置工程の前又は後に、原点復帰機構50の位置決めピン51を下降させる工程と、を備えるので、ワークWの芯出し作業のための準備を確実、且つ迅速に行うことができる。特に、ワークWの載置工程後に位置決めピン51を下降させれば、ワークWを載置した際に可動台40がずれることがなく、ワークWを安定してワーク載置面42aに載置することができる。   In addition, after the floating step of the movable table 40, the positioning pins 51 of the origin return mechanism 50 are raised to return the movable table 40 to a predetermined origin position, and before or after the workpiece W placement step, And a step of lowering the positioning pin 51 of the return mechanism 50, so that the preparation for the centering operation of the workpiece W can be performed reliably and quickly. In particular, if the positioning pin 51 is lowered after the mounting process of the workpiece W, the movable table 40 is not displaced when the workpiece W is mounted, and the workpiece W is stably mounted on the workpiece mounting surface 42a. be able to.

尚、本発明は、前述した実施形態及び変形例に限定されるものではなく、適宜、変形、改良、等が可能である。
たとえば、上記実施形態では、4台のエアスライドテーブル20を軸芯CL周りに等間隔(90°間隔)に配置することで、ワーク供給時の可動台40とワークWとの摩擦力によるワークの弾性変形を緩和している。しかしながら、本発明において、エアスライドテーブル20の数は限定されない。
Note that the present invention is not limited to the above-described embodiments and modifications, and modifications, improvements, and the like can be made as appropriate.
For example, in the above embodiment, by disposing four air slide tables 20 at equal intervals (90 ° intervals) around the axis CL, the workpieces caused by the frictional force between the movable table 40 and the workpiece W when the workpiece is supplied can be obtained. It is reducing elastic deformation. However, in the present invention, the number of air slide tables 20 is not limited.

例えば、極めて低い摩擦力でのワークWの芯出し等に用途が限定される場合には、図4に示す第1変形例の自動芯出し装置10のように、回転テーブル11の中央に1台のエアスライドテーブル20が配置される構成であってもよい。
また、エアスライドテーブル20の負荷容量に応じて、図5に示す第2変形例の自動芯出し装置10のように、3台のエアスライドテーブル20が、周方向に120°間隔で配置される構成であってもよい。
For example, when the use is limited to centering the workpiece W with extremely low frictional force, one unit is provided at the center of the rotary table 11 as in the automatic centering device 10 of the first modification shown in FIG. The air slide table 20 may be arranged.
Further, according to the load capacity of the air slide table 20, as in the automatic centering device 10 of the second modification shown in FIG. 5, three air slide tables 20 are arranged at intervals of 120 ° in the circumferential direction. It may be a configuration.

本発明の押圧装置60は、本実施形態のようにワークWを押圧してもよいが、浮上した可動台を押圧するようにしてもよい。
また、ストッパ装置は、当接部を構成する直交する2平面を備えた部材を有し、水平、且つ、上下駆動可能なものであれば、一台で構成することもできる。
The pressing device 60 of the present invention may press the workpiece W as in this embodiment, but may press the movable table that has floated.
Further, the stopper device can be configured as a single unit as long as it has a member having two orthogonal planes constituting the contact portion and can be driven horizontally and vertically.

10 自動芯出し装置
11 回転テーブル
17 サーボモータ(駆動装置)
20 エアスライドテーブル(ワークテーブル)
30 ストッパ装置
31 当接部材
40 可動台
42 ワーク載置部
42a ワーク載置面
50 原点復帰機構
60 押圧装置
CL 軸芯(回転テーブルの回転軸)
W ワーク
10 Automatic Centering Device 11 Rotary Table 17 Servo Motor (Drive Device)
20 Air slide table (work table)
30 Stopper device 31 Contact member 40 Movable base 42 Work placement portion 42a Work placement surface 50 Origin return mechanism 60 Pressing device CL Axle (rotating shaft of rotary table)
W Work

Claims (8)

回転駆動される回転テーブルと、
前記回転テーブル上に配設され、ワークが載置される少なくとも一つのワークテーブルと、
を備え、前記ワークの芯出しを行うワークの自動芯出し装置であって、
前記ワークテーブルは、前記ワークを載置するワーク載置面が設けられ、圧縮空気の圧力によって浮上して任意の方向に水平移動可能な可動台と、前記可動台を所定の原点位置に復帰させる原点復帰機構と、を有し、
前記回転テーブルと別体で、前記回転テーブルの周囲に90°の周方向間隔で互いに配置され、前記ワークが当接可能な当接部を備え、前記ワークの位置決めを行う2台のストッパ装置と、
前記回転テーブルの周囲で、前記2台のストッパ装置に対して円周方向等間隔で、該2台のストッパ装置から遠い側の中間位置に配置され、前記可動台と共に浮上した前記ワークを前記ストッパ装置の当接部に当接させることで、前記ワークの中心が前記回転テーブルの中心に一致するように前記ワーク又は前記可動台を押圧する押圧装置と、
をさらに備えるワークの自動芯出し装置を用いた検査又は測定のためのワークの自動芯出し方法であって、
前記ワークテーブルに圧縮空気を供給して、前記可動台を圧縮空気の圧力によって浮上させる工程と、
前記原点復帰機構の位置決めピンを上昇させて、前記可動台を所定の原点位置に復帰する工程と、
前記ワークを前記可動台のワーク載置面上に載置する工程と、
前記ワークの載置工程の前又は後に、前記原点復帰機構の位置決めピンを下降させる工程と、
前記押圧装置により前記ワーク又は前記可動台を押圧して前記ワークを前記可動台と共に水平方向に移動させて、前記ワークを前記ストッパ装置に当接させ、前記ワークを芯出しする工程と、
前記ワークテーブルへの圧縮空気の供給を遮断して、前記可動台を下降させる工程と、を備えるワークの自動芯出し方法。
A rotary table that is driven to rotate;
At least one work table disposed on the turntable and on which a workpiece is placed;
A work centering device for centering the work, comprising:
The work table is provided with a work placement surface on which the work is placed, and a movable base that is floated by the pressure of compressed air and can move horizontally in an arbitrary direction, and the movable base is returned to a predetermined origin position. And a home position return mechanism,
Two stopper devices that are separate from the rotary table and are arranged around the rotary table at intervals of 90 ° in the circumferential direction so as to be capable of abutting the workpiece and positioning the workpiece. ,
Around the rotary table, the workpiece is arranged at an intermediate position on the side far from the two stopper devices at equal intervals in the circumferential direction with respect to the two stopper devices, and the workpiece floating with the movable table is moved to the stopper A pressing device that presses the workpiece or the movable table so that the center of the workpiece coincides with the center of the rotary table by contacting the contact portion of the device;
An automatic workpiece centering method for inspection or measurement using an automatic workpiece centering device further comprising:
Supplying compressed air to the work table to raise the movable table by the pressure of the compressed air;
Raising the positioning pin of the origin return mechanism to return the movable table to a predetermined origin position;
Placing the workpiece on the workpiece mounting surface of the movable table;
Before or after the workpiece placing step, lowering the positioning pin of the origin return mechanism;
Pressing the workpiece or the movable table with the pressing device to move the workpiece in the horizontal direction together with the movable table, bringing the workpiece into contact with the stopper device, and centering the workpiece;
Cutting the supply of compressed air to the work table and lowering the movable table;
回転駆動される回転テーブルと、
前記回転テーブル上に配設され、ワークが載置される少なくとも一つのワークテーブルと、
を備え、前記ワークの芯出しを行うワークの自動芯出し装置であって、
前記ワークテーブルは、前記ワークを載置するワーク載置面が設けられ、圧縮空気の圧力によって浮上して任意の方向に水平移動可能な可動台と、前記可動台が浮上した状態で、前記可動台を所定の原点位置に復帰させる原点復帰機構と、を有し、
前記回転テーブルと別体で、前記回転テーブルの周囲に90°の周方向間隔で互いに配置され、前記ワークが当接可能な当接部を備え、前記ワークの位置決めを行う2台のストッパ装置と、
前記回転テーブルの周囲で、前記2台のストッパ装置に対して円周方向等間隔で、該2台のストッパ装置から遠い側の中間位置に配置され、前記ワークを前記ストッパ装置の当接部に当接させることで、前記ワークの中心が前記回転テーブルの中心に一致するように前記ワーク又は前記可動台を押圧する押圧装置と、をさらに備え、
前記原点復帰機構は、前記可動台の下面に形成されたテーパ状凹部と、該テーパ状凹部に係合するように、先端がテーパ状に形成され、上下方向に移動可能な位置決めピンと、を有するワークの自動芯出し装置。
A rotary table that is driven to rotate;
At least one work table disposed on the turntable and on which a workpiece is placed;
A work centering device for centering the work, comprising:
The work table is provided with a work placement surface on which the work is placed, the movable table which is floated by the pressure of compressed air and can move horizontally in an arbitrary direction, and the movable table is movable in a state where the movable table is lifted. A home position return mechanism for returning the base to a predetermined home position;
Two stopper devices that are separate from the rotary table and are arranged around the rotary table at intervals of 90 ° in the circumferential direction so as to be capable of abutting the workpiece and positioning the workpiece. ,
Around the rotary table, it is disposed at an intermediate position on the side far from the two stopper devices at equal intervals in the circumferential direction with respect to the two stopper devices, and the workpiece is brought into contact with the stopper device. A pressing device that presses the workpiece or the movable table so that the center of the workpiece coincides with the center of the rotary table by contacting the workpiece;
The origin return mechanism includes a tapered recess formed on the lower surface of the movable base, and a positioning pin having a tip formed in a tapered shape so as to engage with the tapered recess and movable in the vertical direction. Automatic centering device for workpieces.
前記当接部の位置は、前記ワークの外径に応じて調整可能である請求項2に記載のワークの自動芯出し装置。   The automatic centering device for a workpiece according to claim 2, wherein the position of the contact portion can be adjusted according to the outer diameter of the workpiece. 前記ストッパ装置の当接部が、上下方向に移動可能である請求項2又は3に記載のワークの自動芯出し装置。   4. The automatic workpiece centering device according to claim 2, wherein the contact portion of the stopper device is movable in the vertical direction. 請求項2に記載のワークの自動芯出し装置を用いたワークの自動芯出し方法であって、
前記ワークテーブルに圧縮空気を供給して、前記可動台を圧縮空気の圧力によって浮上させる工程と、
前記ワークを前記可動台のワーク載置面上に載置する工程と、
前記押圧装置により前記ワーク又は前記可動台を押圧して前記ワークを前記可動台と共に水平方向に移動させて、前記ワークを前記ストッパ装置に当接させ、前記ワークを芯出しする工程と、
前記ワークテーブルへの圧縮空気の供給を遮断して、前記可動台を下降させる工程と、を備えるワークの自動芯出し方法。
A method of automatically aligning a work using the work centering apparatus according to claim 2.
Supplying compressed air to the work table to raise the movable table by the pressure of the compressed air;
Placing the workpiece on the workpiece mounting surface of the movable table;
Pressing the workpiece or the movable table with the pressing device to move the workpiece in the horizontal direction together with the movable table, bringing the workpiece into contact with the stopper device, and centering the workpiece;
Cutting the supply of compressed air to the work table and lowering the movable table;
前記可動台の浮上工程の後に、前記原点復帰機構の位置決めピンを上昇させて、前記可動台を所定の原点位置に復帰する工程と、
前記ワークの載置工程の前又は後に、前記原点復帰機構の位置決めピンを下降させる工程と、
を備える請求項5に記載のワークの自動芯出し方法。
A step of raising the positioning pin of the origin return mechanism after the step of floating the movable table to return the movable table to a predetermined origin position;
Before or after the work placement step, lowering the positioning pin of the origin return mechanism;
The method of automatically centering a work according to claim 5, comprising:
請求項2〜4のいずれか1項に記載のワークの自動芯出し装置を備える検査又は測定装置。   An inspection or measurement device comprising the automatic centering device for workpieces according to claim 2. 請求項1、5及び6のいずれか1項に記載のワークの自動芯出し方法を備える検査又は測定方法。   An inspection or measurement method comprising the automatic centering method for a workpiece according to any one of claims 1, 5, and 6.
JP2018109481A 2018-06-07 2018-06-07 Automatic centering device and automatic centering method of work, inspection or measuring device and inspection or measuring method Active JP6551576B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2018109481A JP6551576B2 (en) 2018-06-07 2018-06-07 Automatic centering device and automatic centering method of work, inspection or measuring device and inspection or measuring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018109481A JP6551576B2 (en) 2018-06-07 2018-06-07 Automatic centering device and automatic centering method of work, inspection or measuring device and inspection or measuring method

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2014116131A Division JP2015229211A (en) 2014-06-04 2014-06-04 Automatic centering device of workpiece and automatic centering method

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2019123081A Division JP6777197B2 (en) 2019-07-01 2019-07-01 Work automatic centering device and automatic centering method, inspection or measuring device and inspection or measuring method, bearing raceway ring manufacturing method, and bearing manufacturing method

Publications (2)

Publication Number Publication Date
JP2019007949A JP2019007949A (en) 2019-01-17
JP6551576B2 true JP6551576B2 (en) 2019-07-31

Family

ID=65026808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018109481A Active JP6551576B2 (en) 2018-06-07 2018-06-07 Automatic centering device and automatic centering method of work, inspection or measuring device and inspection or measuring method

Country Status (1)

Country Link
JP (1) JP6551576B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109682591B (en) * 2019-02-21 2024-04-09 苏州凌创电子系统有限公司 Automatic detection device for finger-shaped contact of low-voltage air circuit breaker
CN114459311B (en) * 2022-02-09 2023-09-05 重庆臻宝科技股份有限公司 Silicon ring step detection device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2617589B1 (en) * 1987-06-30 1989-12-08 Inst Francais Du Petrole DEVICE AND METHOD FOR MEASURING DEFORMATIONS OF A SAMPLE
JPH04322929A (en) * 1991-04-22 1992-11-12 Fuji Electric Co Ltd Guide mechanism for horizontal free movement
JPH071187A (en) * 1993-06-18 1995-01-06 Topy Ind Ltd Device for positioning and fixing
JP5399958B2 (en) * 2010-03-19 2014-01-29 ティーエス プレシジョン株式会社 Automatic centering device and automatic centering method

Also Published As

Publication number Publication date
JP2019007949A (en) 2019-01-17

Similar Documents

Publication Publication Date Title
WO2015186542A1 (en) Automatic workpiece centering apparatus and automatic centering method
JP6551576B2 (en) Automatic centering device and automatic centering method of work, inspection or measuring device and inspection or measuring method
JP4722766B2 (en) Press-fit component mounting device
JP2016101642A (en) Workpiece fixing device which presses plurality of parts of workpiece
JP2012051054A (en) Positioning table
JP5482685B2 (en) Press-fitting device
JP2004093564A (en) Work measuring apparatus
JP5205237B2 (en) Apparatus for adjusting height of object to be measured and surface shape measuring apparatus provided with the same
KR101433854B1 (en) Apparatus for measuring gap of roll bearing in continuous casting machine
JP2010133847A5 (en)
JP5399958B2 (en) Automatic centering device and automatic centering method
JP2011237252A (en) Axial backlash measuring device for spline fitting component
JP2014180718A (en) Machine tool
JP6215805B2 (en) Press-fitting device
JP2017166613A (en) Gear unit end play measuring method and end play measuring device
JP6777197B2 (en) Work automatic centering device and automatic centering method, inspection or measuring device and inspection or measuring method, bearing raceway ring manufacturing method, and bearing manufacturing method
JP2008183651A (en) Clamping device of stage change plate
JP5426151B2 (en) Surface shape measuring device
JP6041682B2 (en) Vertical grinding machine
CN215588483U (en) Positioning mechanism
JP2010132422A5 (en)
CN116214242B (en) Turning position changing device, turning position changing method and processing equipment
JP2002164423A (en) Wafer holding apparatus with wafer lift
KR100465785B1 (en) Apparatus for inspecting PCB soldering
JP2002107103A (en) Dimension measuring apparatus for shim selection for differential-gear carrier assembly

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20190409

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20190604

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20190617

R150 Certificate of patent or registration of utility model

Ref document number: 6551576

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150