JP3186154U

JP3186154U - Ring-shaped part assembly holding jig

Info

Publication number: JP3186154U
Application number: JP2013003966U
Authority: JP
Inventors: 弘幸青木
Original assignee: Ahresty Corp
Current assignee: Ahresty Corp
Priority date: 2013-07-09
Filing date: 2013-07-09
Publication date: 2013-09-19
Anticipated expiration: 2023-07-09

Abstract

【課題】単一の治具で組み付けることができ、作業を効率良く行えるリング状部品の組付け保持治具を提供する。
【解決手段】ワークＷの円柱部２外周の周方向に形成された軸方向に複数段の各環状溝３ａ〜３ｃに、リング状部品１をそれぞれ組み付けるリング組付け装置に適用され、リング組付け装置によりワークの円柱部２に同軸上に位置合わせ接続される組付け保持治具Ａであって、リング状部品１の内径よりも小さい上端小径部６から内径よりも大きい下端側に至る外周に、複数個のリング状部品を仮止め保持するリング保持部７〜９を軸方向に間隔をおいて複数段備える。円柱部２の各環状溝３ａ〜３ｃにリング状部品を順次押し下げ移送することで、単一の治具で複数個のリング状部品１を組み付けることが可能になる。
【選択図】図３To provide an assembly holding jig for a ring-shaped part that can be assembled with a single jig and can perform work efficiently.
SOLUTION: The ring assembly is applied to a ring assembling apparatus for assembling ring-shaped components 1 respectively in a plurality of annular grooves 3a to 3c in the axial direction formed in the circumferential direction of the outer periphery of a cylindrical portion 2 of a workpiece W. An assembly holding jig A that is coaxially aligned and connected to the cylindrical part 2 of the workpiece by the apparatus, on the outer periphery from the upper end small diameter part 6 smaller than the inner diameter of the ring-shaped part 1 to the lower end side larger than the inner diameter. The ring holding parts 7 to 9 for temporarily fixing and holding a plurality of ring-shaped parts are provided in a plurality of stages at intervals in the axial direction. A plurality of ring-shaped components 1 can be assembled with a single jig by sequentially pressing and transferring the ring-shaped components to the respective annular grooves 3a to 3c of the cylindrical portion 2.
[Selection] Figure 3

Description

本考案は、リング状部品の組付け保持治具に係り、詳しくは、ワークの円柱部外周の周方向に形成された環状溝に、弾性材または径方向に弾性的な伸縮構造を有するリング状部品を自動にて組み付けるリング組付け装置に適用される組付け保持治具に関する。 The present invention relates to an assembly holding jig for ring-shaped parts, and more specifically, a ring-shaped member having an elastic material or an elastic elastic structure in a radial direction in an annular groove formed in the circumferential direction of the outer periphery of a cylindrical portion of a workpiece. The present invention relates to an assembly holding jig applied to a ring assembly apparatus for automatically assembling parts.

例えば、車両用部品などのワークの円柱部（エンジンのミッションシャフトなど）には、外周の周方向に沿って環状溝が形成されており、この環状溝に弾性材からなるリング状部品が組み付けられるものである。この組み付け作業は、リング組付け装置によって自動的に行われるものである。
ちなみに、リング状部品は、弾性変形により径方向に拡径（拡開）・縮径が可能な径方向に弾性的な伸縮構造を有するＣリングやＯリングである。 For example, an annular groove is formed along a circumferential direction of the outer periphery of a cylindrical portion (such as an engine transmission shaft) of a workpiece such as a vehicle component, and a ring-shaped component made of an elastic material is assembled in the annular groove. Is. This assembling work is automatically performed by the ring assembling apparatus.
Incidentally, the ring-shaped component is a C-ring or O-ring having a radially elastic structure that can be expanded (expanded) or reduced in diameter in the radial direction by elastic deformation.

ところで、リング組付け装置によるリング状部品のワーク円柱部の環状溝への組付け作業では、リング押下げハンドなどの移送手段によってワーク円柱部の上端軸方向から環状溝に向けてリング状部品を拡径移送させるために、当該リング状部品をワーク円柱部側へ拡径させながら移送し得るようにリング状部品を外周に仮止め保持するとともに、ワーク円柱部に同軸上に位置合わせ接続（載置）される組付け保持治具が用いられる。この組付け保持治具としては、下記特許文献１および特許文献２などに記載されているリング状部品が仮止め保持されるテーパ部を有するキャップが知られている。 By the way, in the assembling work of the ring-shaped part to the annular groove of the work cylinder part by the ring assembling device, the ring-shaped part is moved from the upper end axial direction of the work cylinder part toward the annular groove by a transfer means such as a ring pressing hand. In order to transfer the expanded diameter, the ring-shaped part is temporarily fixed and held on the outer periphery so that the ring-shaped part can be transferred while expanding the diameter toward the workpiece cylindrical part side, and is aligned and connected coaxially to the workpiece cylindrical part. An assembly holding jig is used. As this assembly holding jig, there is known a cap having a tapered portion on which a ring-shaped component described in Patent Document 1 and Patent Document 2 below is temporarily held.

特許文献１および特許文献２に記載の組付け保持治具は、リング状部品であるＯリングの内径よりも小さい上端から軸方向に先細り状（円錐状）となしてＯリングを仮止め保持するテーパ部を備え、このテーパ部から下端に至る軸方向にＯリングの内径よりも大きい大径となして、当該Ｏリングを径方向に拡径（弾性変形）させる大径部（筒状部）を備えた形態に形成されている（同文献１の図７および同文献２の図３など参照）。 The assembly holding jigs described in Patent Document 1 and Patent Document 2 are tapered (conical) in the axial direction from the upper end smaller than the inner diameter of the O-ring, which is a ring-shaped component, and temporarily hold the O-ring. A large-diameter portion (cylindrical portion) that has a tapered portion and has a larger diameter than the inner diameter of the O-ring in the axial direction from the tapered portion to the lower end, and expands (elastically deforms) the O-ring in the radial direction. (Refer to FIG. 7 of the same document 1, FIG. 3 of the same document 2, etc.).

特開２０００−５２１６２号公報JP 2000-52162 A 特開２００４−３０６１５２号公報JP 2004-306152 A

しかしながら、前記従来技術の組付け保持治具は、軸方向の一ヵ所に環状溝を有するワーク円柱部に対して一個のリング状部品を組み付けるための治具としては有効であるものの、複数の環状溝を軸方向に間隔をおいて複数段有するワーク円柱部に対して複数のリング状部品を組み付けるための治具としては問題がある。
つまり、従来技術の組付け保持治具は、テーパ部におけるリング状部品の内径と同径とするテーパ外周部分のみにてリング状部品を仮止め保持する形態に形成されていることから、複数のリング状部品を装着すると、リング状部品同士が軸方向に重なり合った状態でテーパ部に仮止め保持されることとなる。換言すれば、リング組付け装置のリング押下げハンドなどの移送手段を組付け保持治具に仮止め保持されたリング状部品間に挿入介在させることができなく、軸方向複数の各環状溝にそれぞれ組み付けるリング状部品をワーク円柱部側へ個別に押し下げ移送することはできない。 However, the assembly holding jig of the prior art is effective as a jig for assembling a single ring-shaped part to a work cylinder portion having an annular groove in one axial direction, but a plurality of annular There is a problem as a jig for assembling a plurality of ring-shaped parts to a work cylinder portion having a plurality of grooves at intervals in the axial direction.
That is, since the assembly holding jig of the prior art is formed in a form in which the ring-shaped part is temporarily fixed and held only by the tapered outer peripheral portion having the same diameter as the inner diameter of the ring-shaped part in the tapered portion, When the ring-shaped component is mounted, the ring-shaped component is temporarily held by the tapered portion in a state where the ring-shaped components are overlapped in the axial direction. In other words, the transfer means such as the ring pressing hand of the ring assembling apparatus cannot be inserted between the ring-like parts temporarily held by the assembling holding jig, and can be inserted in each annular groove in the axial direction. Each ring-shaped part to be assembled cannot be individually pushed down and transferred to the workpiece cylinder side.

そのために、従来技術では、特許文献２に記載されているように、ワーク円柱部の上端から軸方向複数段の各環状溝までの寸法に合わせて大径部（筒状部）の長さが設定されているなどの形態を変えた複数の組付け保持治具（第１キャップ、第２キャップ）を使い分けながら各段の各環状溝へのリング状部品の組み付けを行わなければならない。結果として、複数の治具を必要とすることでコストが掛かると同時に、治具の取り替えなどによる作業のロスが発生するといった問題があった。 Therefore, in the prior art, as described in Patent Document 2, the length of the large-diameter portion (cylindrical portion) is adjusted according to the dimension from the upper end of the work column portion to each annular groove in a plurality of stages in the axial direction. It is necessary to assemble the ring-shaped parts into the respective annular grooves in each stage while properly using a plurality of assembly holding jigs (first cap and second cap) whose forms are changed. As a result, there is a problem that the cost is increased due to the necessity of a plurality of jigs, and at the same time, work loss due to replacement of jigs occurs.

本考案は、このような問題に対処することを課題の一例として創案されたものである。すなわち、軸方向複数段の各環状溝にリング状部品をそれぞれ組み付けるにあたり、単一の治具で組み付けることができるようにされ、治具の使い分け（取り替え）などによる作業ロスの発生を抑制して作業を効率良く行えるようにすること、などが本考案の目的である。 The present invention was invented as an example of a problem to deal with such a problem. In other words, when assembling each ring-shaped part in each of the annular grooves in a plurality of stages in the axial direction, it is possible to assemble with a single jig, suppressing the occurrence of work loss due to proper use (replacement) of jigs. The purpose of the present invention is to enable efficient work.

このような目的を達成するために、本考案に係るリング状部品の組付け保持治具は、以下の構成を少なくとも具備しているものである。 In order to achieve such an object, an assembly holding jig for a ring-shaped component according to the present invention has at least the following configuration.

ワークの円柱部外周の周方向に形成された軸方向に複数段の各環状溝に、弾性材または径方向に弾性的な伸縮構造を有するリング状部品をそれぞれ組み付けるリング組付け装置に適用され、当該リング組付け装置により搬送されて前記ワーク円柱部に同軸上に位置合わせ接続される組付け保持治具であって、
前記リング状部品の内径よりも小さい上端小径部から当該内径よりも大きい下端側に至る軸方向の外周に、複数個の前記リング状部品を仮止め保持するリング保持部を軸方向に間隔をおいて複数段備え、前記間隔は、前記リング組付け装置により前記リング状部品を前記円柱部側へ個別に押し下げ移送し、当該円柱部の複数段の各環状溝にそれぞれ組み付けることができるように設定されていることを特徴とする。 It is applied to a ring assembling apparatus for assembling an elastic material or a ring-shaped part having an elastic expansion / contraction structure in the radial direction in each of the annular grooves formed in the axial direction formed in the circumferential direction of the outer periphery of the cylindrical portion of the workpiece, An assembly holding jig which is transported by the ring assembly apparatus and coaxially aligned and connected to the work column part,
A ring holding portion for temporarily holding and holding a plurality of the ring-shaped parts is provided in the axial direction on the outer periphery in the axial direction from the small diameter upper end smaller than the inner diameter of the ring-shaped part to the lower end larger than the inner diameter. Provided with a plurality of stages, and the interval is set so that the ring assembly device can individually push down and transfer the ring-shaped parts to the cylindrical part side, and can be assembled to each of the annular grooves of the cylindrical part. It is characterized by being.

ここで、前記上端小径部から下端側に至る軸方向に、当該上端小径部から軸方向に漸次拡径に形成される上半側テーパ部と、該上半側テーパ部のテーパ下部側を含めて連続して形成される軸方向に複数段の前記リング保持部と、該リング保持部から連続して軸方向に漸次拡径に形成される下半側テーパ部と、該下半側テーパ部のテーパ下部から連続して形成される大径部とを備え、軸方向に複数段の前記リング保持部のうち、軸方向最上段のリング保持部は前記リング状部品の内径に相当するテーパ外径を有する前記上半側テーパ部のテーパ下部側に形成され、前記最上段のリング保持部より下側の各リング保持部は、下端側に向けた軸方向の緩やかな縮径傾斜と緩やかな拡径傾斜との間に位置して前記リング状部品の内径に相当するくびれ形状に形成されていることを特徴とする構成を採用することが好適なものとなる。
また、前記ワーク円柱部の外径以上の内径で、当該円柱部の上端から軸方向下段の前記環状溝に至る長さ以上の深さに形成されたワーク接続円筒凹部を、下端面から軸方向内部に同軸上に備えていることを特徴とする構成を採用することが好適なものとなる。 Here, in the axial direction from the upper end small diameter portion to the lower end side, the upper half side taper portion formed to gradually increase in diameter from the upper end small diameter portion in the axial direction, and the taper lower side of the upper half side taper portion are included. A plurality of ring holding portions in the axial direction that are continuously formed, a lower half taper portion that is formed to gradually increase in diameter in the axial direction continuously from the ring holding portion, and the lower half taper portion Of the plurality of ring holding portions in the axial direction, the uppermost ring holding portion in the axial direction is outside the taper corresponding to the inner diameter of the ring-shaped part. Each of the ring holding portions below the uppermost ring holding portion is formed on the taper lower side of the upper half taper portion having a diameter. Constriction located between the diameter-inclined slope and the inner diameter of the ring-shaped part It becomes suitable is possible to adopt a composition characterized by being formed on Jo.
In addition, a workpiece connecting cylindrical recess formed with an inner diameter equal to or greater than the outer diameter of the workpiece column portion and a depth greater than the length from the upper end of the column portion to the annular groove at the lower stage in the axial direction is formed axially from the lower end surface. It is preferable to adopt a configuration characterized by being coaxially provided inside.

このような特徴を有する本考案に係るリング状部品の組付け保持治具によれば、以下の効果が得られる。
ワークの円柱部外周の軸方向複数段の各環状溝にそれぞれ組み付ける複数のリング状部品を、軸方向に間隔をおいて備えた複数段のリング保持部にて仮止め保持させることができる。これにより、リング組付け装置によりワーク円柱部に同軸上に位置合わせ接続させた状態にて各環状溝にリング状部品を順次に押し下げ移送させながら組み付けることが可能になる。つまり、リング組付け装置により順次に移送し得る間隔を軸方向において複数のリング状部品を仮止め保持し得る構成としたため、単一の治具によりワーク円柱部の各環状溝にリング状部品を組み付けることができるようになり、作業ロスの発生を抑制し、組付け作業の短縮化を図り、作業を効率良く行うことができる。 According to the ring-shaped component assembling and holding jig according to the present invention having such characteristics, the following effects can be obtained.
A plurality of ring-shaped parts to be assembled in a plurality of annular grooves in a plurality of stages in the axial direction on the outer periphery of the cylindrical part of the work can be temporarily fixed and held by a plurality of ring holding parts provided at intervals in the axial direction. As a result, it is possible to assemble the ring-shaped parts while sequentially pushing down and transferring them to the respective annular grooves in a state in which the ring assembling apparatus is coaxially aligned and connected to the work cylinder portion. In other words, since a plurality of ring-shaped parts can be temporarily fixed and held in the axial direction by an interval that can be sequentially transferred by the ring assembling apparatus, the ring-shaped parts are placed in each annular groove of the work column part by a single jig. Assembling can be performed, the occurrence of work loss can be suppressed, the assembling work can be shortened, and the work can be performed efficiently.

本考案の実施形態に係るリング状部品の組付け保持治具を適用させるリング組付け装置の一例を示す説明図である。It is explanatory drawing which shows an example of the ring assembly apparatus which applies the assembly | attachment holding jig of the ring-shaped component which concerns on embodiment of this invention. 本考案の実施形態に係る組付け保持治具を示し、（ａ）は、側面図であり、（ｂ）は、要部を概略的に示す拡大説明図である。The assembly holding jig which concerns on embodiment of this invention is shown, (a) is a side view, (b) is an expansion explanatory drawing which shows the principal part roughly. リング状部品を軸方向複数段に仮止め保持させた状態で示す同組付け保持治具の縦断面図である。It is a longitudinal cross-sectional view of the assembly | attachment holding | maintenance jig | tool shown in the state which carried out the temporary stop holding | maintenance of the ring-shaped components in the axial direction several steps | paragraphs. 本考案の実施形態に係る組付け保持治具を適用させたリング組付け装置の動作説明図で、（ａ）は、ワークの円柱部に組付け保持治具を同軸上に接続させた後に、リング押下げハンドを中段と下段のリング状部品の間に挿入介在させた状態を示す、（ｂ）は、リング押下げハンドにより押し下げ移送されたリング状部品がワーク円柱部の下段環状溝に組み込まれた状態を示す。It is operation | movement explanatory drawing of the ring assembly apparatus to which the assembly holding jig which concerns on embodiment of this invention is applied, (a), after connecting the assembly holding jig to the cylindrical part of a workpiece | work coaxially, (B) shows a state in which the ring pressing hand is inserted and interposed between the middle and lower ring-shaped parts. (B) shows the ring-shaped part pushed down and transferred by the ring pressing hand incorporated in the lower annular groove of the work column part. Indicates the status. 同動作説明図で、（ａ）は、リング押下げハンドを上段と中段のリング状部品の間に挿入介在させた状態を示す、（ｂ）は、リング押下げハンドにより押し下げ移送されたリング状部品がワーク円柱部の中段環状溝に組み込まれた状態を示す。In the same operation explanatory view, (a) shows a state in which the ring pressing hand is inserted and interposed between the upper and middle ring-shaped components, and (b) shows the ring shape that is pushed down and transferred by the ring pressing hand. The part is assembled in the middle annular groove of the work cylinder. 同動作説明図で、（ａ）は、リング押下げハンドを上段リング状部品の上方位置に挿入させた状態を示す、（ｂ）は、リング押下げハンドにより押し下げ移送されたリング状部品がワーク円柱部の上段環状溝に組み込まれた状態を示す。In the same operation explanatory view, (a) shows a state in which the ring pressing hand is inserted into the upper position of the upper ring-shaped part, and (b) shows the ring-shaped part pushed down and transferred by the ring pressing hand. The state incorporated in the upper annular groove of the cylindrical part is shown. 本考案の他の実施形態に係る組付け保持治具を示し、（ａ）は、側面図であり、（ｂ）は、要部を概略的に示す拡大説明図である。The assembly holding jig which concerns on other embodiment of this invention is shown, (a) is a side view, (b) is an expansion explanatory drawing which shows the principal part schematically.

以下、本考案の実施形態について、適宜図面を参照しながら詳細に説明する。本考案の実施形態は、図示の内容を含むがこれのみに限定されるものではない。
図１は、本考案の実施形態に係るリング状部品１の組付け保持治具Ａを適用させるリング組付け装置Ｂの一例（要部）を示す説明図である。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. The embodiment of the present invention includes the contents shown in the drawings, but is not limited thereto.
FIG. 1 is an explanatory view showing an example (main part) of a ring assembling apparatus B to which an assembling holding jig A for a ring-shaped component 1 according to an embodiment of the present invention is applied.

本実施形態に係る組付け保持治具Ａは、例えば、車両用部品などのワークＷの円柱部２外周に形成された軸方向に複数段の各環状溝３ａ〜３ｃに対し、複数のリング状部品１を多段式に組み付けるに当たり、単一の治具にて組み付けることができるようにされ、リング組付け装置Ｂによる組み付け作業を効率良く行うことができるようにされている。
ちなみに、リング状部品１は、弾性変形により径方向に拡径（拡開）・縮径が可能な弾性材または径方向に弾性的な伸縮構造を有するＣリングやＯリングなどである。例えば、紙質材料などから径方向に拡径・縮径が可能に形成されている。 The assembly holding jig A according to the present embodiment includes, for example, a plurality of ring shapes for a plurality of annular grooves 3a to 3c in the axial direction formed on the outer periphery of the cylindrical portion 2 of the workpiece W such as a vehicle component. When the parts 1 are assembled in a multistage manner, the parts 1 can be assembled with a single jig, and the assembly work by the ring assembly apparatus B can be performed efficiently.
Incidentally, the ring-shaped component 1 is an elastic material that can be expanded (expanded) or reduced in diameter in the radial direction by elastic deformation, or a C-ring or O-ring having an elastic elastic structure in the radial direction. For example, it is formed from a paper material or the like so that the diameter can be increased or decreased in the radial direction.

≪リング組付け装置Ｂの構成≫
リング組付け装置Ｂは、図１に示すように、ロボットアームＢ１と、このロボットアームＢ１の先端に垂直状に取り付けられるハンド昇降用シリンダ（ロボシリンダなどのアクチュエータ）Ｂ２の下部に位置してハンド開閉シリンダＢ４を介して備えられるリング押下げハンドＢ３と、ハンド昇降用シリンダＢ２の下部側方に位置してチャック開閉シリンダ（図示省略）を介して備えられるチャックユニットＢ５と、リング押下げハンドＢ３の下方に位置してストッパー開閉シリンダ（図示省略）を介して備えられるリングストッパーＢ６を、主要な構成としている。 ≪Configuration of ring assembly device B≫
As shown in FIG. 1, the ring assembling apparatus B is located at the lower part of a robot arm B1 and a hand raising / lowering cylinder (actuator such as a robot cylinder) B2 vertically attached to the tip of the robot arm B1. A ring pressing hand B3 provided via an opening / closing cylinder B4, a chuck unit B5 provided via a chuck opening / closing cylinder (not shown) located on the lower side of the hand lifting cylinder B2, and a ring pressing hand B3 The ring stopper B6 provided via a stopper opening / closing cylinder (not shown) located below is a main configuration.

そして、このような構成からなるリング組付け装置Ｂは、ＣＰＵ制御のもとで、ロボットアームＢ１、ハンド昇降用シリンダＢ２、ハンド開閉シリンダＢ４（リング押下げハンドＢ３）、チャック開閉シリンダ（チャックユニットＢ５）、ストッパー開閉シリンダ（リングストッパーＢ６）を順次に動作させて、組付け保持治具Ａ外周に仮止め保持されている複数のリング状部品１を、ワークＷ円柱部２の各環状溝３ａ〜３ｃに対して順次（順番）に組み付けるように構成されている。 The ring assembling apparatus B having such a configuration is under the control of the CPU, the robot arm B1, the hand elevating cylinder B2, the hand opening / closing cylinder B4 (ring pressing hand B3), the chuck opening / closing cylinder (chuck unit). B5), the stopper opening / closing cylinder (ring stopper B6) is sequentially operated, and the plurality of ring-shaped parts 1 temporarily held on the outer periphery of the assembly holding jig A are connected to the annular grooves 3a of the work W column part 2; It is comprised so that it may assemble | attach sequentially (order) with respect to -3c.

例えば、ロボットアームＢ１の場合は、手動またはリングセット自動装置によってリング状部品１が軸方向に間隔をおいてに複数段に仮止め保持（挿入セット）された組付け保持治具Ａを起立姿勢で待機させて置く治具待機台Ｂ７と、リング状部品１をワークＷの円柱部２に組み付けるリング組付け作業台Ｂ８との間において、チャックユニットＢ５により垂直姿勢に掴持された組付け保持治具Ａを治具待機台Ｂ７からリング組付け作業台Ｂ８に搬送し、作業台Ｂ８上に搬入セットされたワークＷの円柱部２に対して組付け保持治具Ａを同軸上に位置合わせ接続する動作、そして、円柱部２の各環状溝３ａ〜３ｃに対してリング押下げハンドＢ３により組付け保持治具Ａの外周に仮止め保持されている各リング状部品１を順次（順番）に組み付けることができるように、円柱部２に対する組付け保持治具Ａの接続上下位置を変更する動作（後記の図４〜図６に示す）、さらに、円柱部２の各環状溝３ａ〜３ｃに対するリング状部品１の組み付けがすべて完了した後に、組付け保持治具Ａを治具待機台Ｂ７に戻す動作、これらの動作を繰り返すようにＣＰＵ制御されるようになっている。 For example, in the case of the robot arm B1, the assembly holding jig A in which the ring-shaped component 1 is temporarily held (inserted and set) in a plurality of stages at intervals in the axial direction by a manual or ring set automatic device is raised. Assembly holding held by the chuck unit B5 in a vertical position between the jig stand B7 placed in a stand-by state and the ring assembly work table B8 for assembling the ring-shaped part 1 to the cylindrical portion 2 of the workpiece W The jig A is transported from the jig stand B7 to the ring assembling work table B8, and the assembly holding jig A is coaxially aligned with the cylindrical portion 2 of the work W loaded and set on the work table B8. The operation of connecting, and the ring-shaped components 1 temporarily held on the outer periphery of the assembly holding jig A by the ring pressing hand B3 with respect to the annular grooves 3a to 3c of the cylindrical portion 2 are sequentially (in order). Assembling Operation to change the connection vertical position of the assembly holding jig A with respect to the cylindrical portion 2 (shown in FIGS. 4 to 6 to be described later), and further to the annular grooves 3a to 3c of the cylindrical portion 2 After all the assembly of the ring-shaped component 1 is completed, the CPU is controlled so as to return the assembly holding jig A to the jig stand B7 and to repeat these operations.

≪組付け保持治具Ａの構成≫
つぎに、組付け保持治具Ａについて説明する。
図２は、本考案の実施形態に係る組付け保持治具を示す側面図および要部を概略的に示す拡大説明図であり、図３は、縦断面図である。ここでは、図１を適宜参照しながら説明する。
組付け保持治具Ａは、ワークＷの円柱部２外周に円周に沿って形成されて軸方向に間隔をおいて設けられる複数段の各環状溝３ａ〜３ｃに対し、リング組付け装置Ｂによってリング状部品１をそれぞれ組み付けるに当たり、単一の治具として効率良く組み付け作業が行われるようにされている。
この組付け保持治具Ａは、図１および図２に示すように、リング組付け装置ＢのチャックユニットＢ５に掴持されてワークＷの円柱部２上方位置に搬送された後、当該円柱部２に同軸上に位置合わせ接続されるように、チャック掴持部となる上端小径部６を備えている。
この上端小径部６は、リング状部品１の内径よりも小さく形成されて、外周軸方向へのリング状部品１の挿入セットが容易に行なわれるようになっている。また、上端小径部６は、上方からチャックユニットＢ５により把持され易いように側面視で略台形形状に形成されている。 ≪Configuration of assembly holding jig A≫
Next, the assembly holding jig A will be described.
FIG. 2 is a side view showing an assembly holding jig according to an embodiment of the present invention and an enlarged explanatory view schematically showing a main part, and FIG. 3 is a longitudinal sectional view. Here, description will be made with reference to FIG. 1 as appropriate.
The assembly holding jig A is formed on the outer periphery of the cylindrical portion 2 of the workpiece W along the circumference, and is attached to the ring assembly device B for each of the plurality of annular grooves 3a to 3c provided at intervals in the axial direction. Thus, when each of the ring-shaped components 1 is assembled, the assembly work is efficiently performed as a single jig.
As shown in FIGS. 1 and 2, the assembly holding jig A is gripped by the chuck unit B5 of the ring assembly apparatus B and conveyed to a position above the cylindrical portion 2 of the workpiece W, and then the cylindrical portion. 2 is provided with an upper end small-diameter portion 6 serving as a chuck gripping portion so as to be coaxially aligned and connected to 2.
The upper end small-diameter portion 6 is formed smaller than the inner diameter of the ring-shaped component 1 so that the ring-shaped component 1 can be easily inserted and set in the outer circumferential axis direction. The upper end small diameter portion 6 is formed in a substantially trapezoidal shape in a side view so that it can be easily gripped by the chuck unit B5 from above.

そして、組付け保持治具Ａは、図２に示すように、上端小径部６との間に形成されたネック部（くぼみ部）１０を介して上端小径部６から下端側に至る軸方向に、当該上端小径部６から軸方向に漸次拡径に形成される上半側テーパ部１１と、この上半側テーパ部１１のテーパ下部側を含めて連続して形成される複数段のリング保持部７〜９と、このリング保持部７〜９から連続して軸方向に漸次拡径に形成される下半側テーパ部１３と、この下半側テーパ部１３のテーパ下部から連続して大径部１２とを備えている。 As shown in FIG. 2, the assembly holding jig A is arranged in the axial direction from the upper end small diameter portion 6 to the lower end side through a neck portion (recessed portion) 10 formed between the upper end small diameter portion 6. The upper half side taper portion 11 formed to gradually increase in diameter in the axial direction from the upper end small diameter portion 6 and the multistage ring holding formed continuously including the taper lower side of the upper half side taper portion 11. The lower half side taper portion 13 formed from the ring holding portions 7 to 9 to be gradually enlarged in the axial direction, and the lower half side taper portion 13 continuously from the taper lower portion. And a diameter portion 12.

大径部１２は、ワークＷの円柱部２に接続する後記のワーク接続円筒凹部１５を内部に有する下半側テーパ部１３のテーパ下部から連続して略円筒形状に形成される。つまり、下半側テーパ部１３のテーパが下端まで続くと、組付け保持治具Ａの下端側の外径（直径）が大きくなり、当該外径がリング状部品１の弾性限界を超えてしまうことを防ぐためである。 The large diameter portion 12 is formed in a substantially cylindrical shape continuously from the tapered lower portion of the lower half side tapered portion 13 having a workpiece connecting cylindrical concave portion 15 to be described later connected to the column portion 2 of the workpiece W. That is, when the taper of the lower half side taper portion 13 continues to the lower end, the outer diameter (diameter) on the lower end side of the assembly holding jig A increases, and the outer diameter exceeds the elastic limit of the ring-shaped component 1. This is to prevent this.

≪リング保持部７〜９の構成≫
リング保持部７〜９は、リング組付け装置Ｂのリング押下げハンドＢ３が挿入介在される間隔Ｌ１をおいて、図２の（ｂ）に示すように、複数のリング状部品１を軸方向外周に仮止め保持し得るように形成される。つまり、リング保持部７〜９は、ワークＷ円柱部２の各環状溝３ａ〜３ｃへリング状部品１をそれぞれ組み付けるときに、リング組付け装置Ｂのリング押下げハンドＢ３によりリング状部品１を個別に円柱部２側へ押し下げ移送し得るように設定された間隔Ｌ１を軸方向において外周に形成される。 << Configuration of Ring Holding Units 7-9 >>
As shown in FIG. 2 (b), the ring holding parts 7 to 9 are arranged in the axial direction at an interval L1 in which the ring pressing hand B3 of the ring assembling apparatus B is inserted and interposed. It is formed so that it can be temporarily fixed to the outer periphery. That is, the ring holding parts 7 to 9 attach the ring-shaped part 1 by the ring pressing hand B3 of the ring assembling apparatus B when assembling the ring-shaped part 1 to the respective annular grooves 3a to 3c of the workpiece W cylindrical part 2. An interval L1 set so as to be able to be pushed down and transferred individually to the cylindrical portion 2 side is formed on the outer periphery in the axial direction.

この複数段のリング保持部７〜９のうち、軸方向最上段のリング保持部７は、図２および図３に示すように、上半側テーパ部１１のテーパ下部側におけるテーパ肩部１１ａの手前（上方）に位置して形成される。つまり、最上段リング保持部７は、リング状部品１の内径に相当するテーパ外径を有する上半側テーパ部１１のテーパ外周面を利用してリング状部品１を仮止め保持し得るように上半側テーパ部１１の一部（テーパ途中部位）に形成されている。
一方、テーパ肩部１１ａから下半側テーパ部１３に至る軸方向において設けられる中段、最下段のリング保持部８，９は、下端側に向けた軸方向の緩やかな縮径傾斜と緩やかな拡径傾斜との間に位置してリング状部品１の内径に相当するくびれ形状に形成されている。 Among the plurality of ring holding portions 7 to 9, the uppermost ring holding portion 7 in the axial direction has a tapered shoulder portion 11 a on the lower taper side of the upper half taper portion 11, as shown in FIGS. 2 and 3. It is formed in front (upper). That is, the uppermost ring holding portion 7 can temporarily hold the ring-shaped component 1 by using the tapered outer peripheral surface of the upper half tapered portion 11 having a tapered outer diameter corresponding to the inner diameter of the ring-shaped component 1. It is formed on a part of the upper half side taper portion 11 (a portion along the taper).
On the other hand, the middle and lowermost ring holding portions 8 and 9 provided in the axial direction from the tapered shoulder portion 11a to the lower half side tapered portion 13 have a gentle diameter-reducing inclination and a gentle expansion in the axial direction toward the lower end side. It is located between the diameter inclination and is formed in a constricted shape corresponding to the inner diameter of the ring-shaped component 1.

そして、本実施例では、図２の（ｂ）に示すように、最上段リング保持部７と中段リング保持部８とを軸方向に連設する上半側テーパ部１１のテーパ肩部１１ａ、および、中段、最下段のくびれ形状のリング保持部８，９を軸方向に連設する山形連設部１４の外径Ｌ２は、リング状部品１の拡径方向の弾性変形の許容範囲内で当該リング状部品１の内径よりも僅かに大きい寸法に設定してなる。つまり、テーパ肩部１１ａおよび山形連設部１４の外径Ｌ２は、リング状部品１が組付け保持治具Ａの外周から不用意に滑り落ちない程度の仮止め状態でリング状部品１をそれぞれ仮止め保持し得るように、リング状部品１の内径よりも僅かに大きめの寸法に設定してなる。
これにより、例えば、紙質材料からなるリング状部品１の場合において、下段、中段、上段の各リング保持部７〜９に仮止め保持されているリング状部品１をリング組付け装置Ｂのリング押下げハンドＢ３によりワークＷの円柱部２側に向かって押し下げ移送するときに、テーパ肩部１１ａおよび山形連設部１４を乗り越えるときの拡径方向の弾性変形量を抑えて、リング状部品１が拡径方向の限界変形量を超えないようにしている。つまり、紙質材料からなるリング状部品１の拡径方向の急激な弾性変形と必要以上の弾性変形によるストレスを抑えることで、リング状部品１の縮径方向の弾性変形（元の内径に戻る復元力）を損なうことなく、円柱部２の各環状溝３ａ〜３ｃに対してリング状部品１が確実に組み付け装着されるようにしている。 In the present embodiment, as shown in FIG. 2B, the tapered shoulder portion 11a of the upper half side tapered portion 11 connecting the uppermost ring holding portion 7 and the middle ring holding portion 8 in the axial direction, The outer diameter L2 of the mountain-shaped connecting portion 14 that connects the middle and lowermost constricted ring holding portions 8 and 9 in the axial direction is within the allowable range of elastic deformation of the ring-shaped component 1 in the diameter-expanding direction. The dimension is set to be slightly larger than the inner diameter of the ring-shaped part 1. In other words, the outer diameter L2 of the tapered shoulder portion 11a and the mountain-shaped connecting portion 14 is such that the ring-shaped component 1 is in a temporarily fixed state so that the ring-shaped component 1 does not slip off from the outer periphery of the assembly holding jig A. The dimension is set to be slightly larger than the inner diameter of the ring-shaped part 1 so that it can be temporarily fixed.
Thereby, for example, in the case of the ring-shaped component 1 made of a paper-like material, the ring-shaped component 1 temporarily held by the lower, middle and upper ring holding portions 7 to 9 When the workpiece W is pushed down and transferred toward the cylindrical portion 2 side by the lowering hand B3, the amount of elastic deformation in the diameter-expanding direction when overcoming the tapered shoulder portion 11a and the mountain-shaped connecting portion 14 is suppressed, and the ring-shaped component 1 is The limit deformation amount in the diameter expansion direction is not exceeded. That is, the elastic deformation in the reduced diameter direction of the ring-shaped part 1 (restoration to return to the original inner diameter) is suppressed by suppressing the stress caused by the sudden elastic deformation in the diameter-expanding direction and the unnecessary elastic deformation of the ring-shaped part 1 made of paper material. The ring-shaped component 1 is securely assembled and attached to the annular grooves 3a to 3c of the cylindrical portion 2 without impairing the force).

また、組付け保持治具Ａは、図２および図３に示すように、下端面（大径部１２の下端面）軸芯にワークＷの円柱部２を挿入させて当該円柱部２に同軸上に接続させるための下向き開口のワーク接続円筒凹部１５を備えている。 As shown in FIGS. 2 and 3, the assembly holding jig A is coaxial with the cylindrical portion 2 by inserting the cylindrical portion 2 of the workpiece W into the lower end surface (lower end surface of the large diameter portion 12) axis. A work connection cylindrical recess 15 having a downward opening for connection to the upper side is provided.

≪ワーク接続円筒凹部１５の構成≫
ワーク接続円筒凹部１５は、円柱部２の外径以上の内径にて組付け保持治具Ａの下端面から軸方向内部に同軸上に形成されている。そして、ワーク接続円筒凹部１５は、円柱部２を挿入接続させたとき、円柱部２の上端が凹部底に突き当たらない状態で組付け保持治具Ａの下端面（凹部開口縁面）が円柱部２の下段環状溝３ｃの直前に位置する深さ以上に形成されている。つまり、ワーク接続円筒凹部１５は、円柱部２の上端から軸方向下段の環状溝３ｃに至る長さ以上の深さに形成されている。
これにより、ワーク接続円筒凹部１５を備えた組付け保持治具Ａは、リング状部品１をワークＷ円柱部２の各環状溝３ａ〜３ｃにそれぞれ組み付けるとき、リング組付け装置ＢのロボットアームＢ１の上下動作よって円柱部２がワーク接続円筒凹部１５に挿入されることで、円柱部２に同軸上に接続されるとともに、下端面（ワーク接続円筒凹部１５の開口縁面）が円柱部２の上段、中段、下段の各環状溝３ａ〜３ｃの直前に位置されることとなる。そして、ロボットアームＢ１の上下動作よって下端面を直前に位置された上段、中段、下段の各環状溝３ａ〜３ｃに対するリング状部品１の個々の組み付けが、後記の図４〜図６に示すように、リング組付け装置Ｂのリング押下げハンドＢ３のリング押下げ動作によって下段環状溝３ｃ側から順次（段階的）に行われることとなる。 << Configuration of Workpiece Connection Cylindrical Concave 15 >>
The workpiece connection cylindrical recess 15 is coaxially formed in the axial direction from the lower end surface of the assembly holding jig A with an inner diameter equal to or larger than the outer diameter of the column portion 2. The workpiece connecting cylindrical recess 15 has a cylindrical lower end surface (recessed opening edge surface) of the assembly holding jig A in a state where the upper end of the cylindrical portion 2 does not hit the bottom of the concave portion when the cylindrical portion 2 is inserted and connected. It is formed to be deeper than the depth located immediately before the lower annular groove 3c of the portion 2. In other words, the workpiece connection cylindrical recess 15 is formed to a depth equal to or longer than the length from the upper end of the columnar portion 2 to the annular groove 3c at the lower stage in the axial direction.
As a result, the assembly holding jig A having the workpiece connecting cylindrical recess 15, when assembling the ring-shaped component 1 in each of the annular grooves 3 a to 3 c of the workpiece W column portion 2, the robot arm B 1 of the ring assembly device B The cylindrical portion 2 is inserted into the workpiece connecting cylindrical recess 15 by the up and down movement of the cylinder, so that it is coaxially connected to the cylindrical portion 2 and the lower end surface (opening edge surface of the workpiece connecting cylindrical recess 15) is It will be located immediately before each of the upper, middle and lower annular grooves 3a to 3c. Then, the individual assembly of the ring-shaped component 1 to the upper, middle and lower annular grooves 3a to 3c positioned immediately before the lower end surface by the vertical movement of the robot arm B1 is as shown in FIGS. In addition, the ring pressing operation of the ring pressing hand B3 of the ring assembling apparatus B is performed sequentially (stepwise) from the lower annular groove 3c side.

［作用説明］
つぎに、以上詳述の構成からなる本実施形態に係る組付け保持治具Ａと、リング組付け装置Ｂによるリング状部品１の組み付けについて説明する。
図４〜６図は、本実施形態に係る組付け保持治具Ａを適用させたリング組付け装置Ｂの動作説明図で、ワークＷ円柱部２の軸方向複数段の各環状溝３ａ〜３ｃに対するリング状部品１の組み付けを順次に示す。 [Description of operation]
Next, assembly of the ring-shaped component 1 by the assembly holding jig A and the ring assembly apparatus B according to the present embodiment having the detailed configuration will be described.
4 to 6 are operation explanatory views of the ring assembling apparatus B to which the assembling and holding jig A according to the present embodiment is applied, and each of the annular grooves 3a to 3c in a plurality of stages in the axial direction of the workpiece W cylindrical portion 2. The assembly of the ring-shaped part 1 with respect to is sequentially shown.

組付け保持治具Ａの最上段、中段、最下段の各リング保持部７〜９へのリング状部品１の挿入セットは、手動またはリングセット自動装置による上端小径部６側からリング状部品１の挿入によって最下段リング保持部９側から順次に行なわれる。このとき、中段、最下段のリング保持部８，９にセットされるべく、上端小径部６側から組付け保持治具Ａの外周に挿入されたリング状部品１は、上半側テーパ部１１のテーパに沿って、また、テーパ肩部１１ａおよび軸方向の山形連設部１４を乗り越える拡径方向に弾性変形されるが、中段、最下段のリング保持部８，９にセットされることで、元の内径に戻された状態にて仮止め保持される。
つまり、中段、最下段のリング保持部８，９は、リング状部品１の内径と同径とするくびれ形状に形成されていることで、リング状部品１を仮止め状態で保持する。一方、上段リング保持部７にセットされるべく、上端小径部６側から組付け保持治具Ａの外周に挿入されたリング状部品１は、拡径方向へ弾性変形することなく上半側テーパ部１１のテーパ下部側途中に仮止め保持される。 The ring-shaped component 1 is inserted into the upper, middle, and lowermost ring holding portions 7 to 9 of the assembly holding jig A by manually or from the upper end small diameter portion 6 side by the ring set automatic device. Are sequentially performed from the lowermost ring holding portion 9 side. At this time, the ring-shaped component 1 inserted into the outer periphery of the assembly holding jig A from the upper end small diameter portion 6 side to be set in the middle and lowermost ring holding portions 8 and 9 is the upper half taper portion 11. And is elastically deformed in the diameter increasing direction over the tapered shoulder portion 11a and the axial mountain-shaped connecting portion 14, but is set in the ring holding portions 8 and 9 in the middle and lowermost stages. , Temporarily held in a state of being returned to the original inner diameter.
That is, the middle and lowermost ring holding portions 8 and 9 are formed in a constricted shape having the same diameter as the inner diameter of the ring-shaped component 1, thereby holding the ring-shaped component 1 in a temporarily fixed state. On the other hand, the ring-shaped part 1 inserted into the outer periphery of the assembly holding jig A from the upper end small diameter part 6 side to be set in the upper stage ring holding part 7 is not elastically deformed in the diameter increasing direction, and the upper half side taper. It is temporarily fixed and held in the middle of the taper lower part of the portion 11.

このようにして、外周軸方向の最上段、中段、最下段の各リング保持部７〜９にリング状部品１がそれぞれ仮止め保持された組付け保持治具Ａは、リング組付け装置Ｂの治具待機台Ｂ７上に直立姿勢にて整列待機され、ワークＷがリング組付け作業台Ｂ８上に搬入されると、チャックユニットＢ５により上端小径部６が把持された垂直姿勢でロボットアームＢ１の動きによって上向き直立姿勢の円柱部２の上方位置に搬送される。
そして、円柱部２の上方位置に搬送された組付け保持治具ＡはロボットアームＢ１の動きによって円柱部２に同軸上に位置合わせ接続される。このとき、円柱部２に覆い被さるように接続されるワーク接続円筒凹部１５の開口縁下端を、図４に示すように、円柱部２の下段環状溝３ｃの手前に位置させた高さ位置で円柱部２に対する組付け保持治具Ａの接続が行われる。 In this way, the assembly holding jig A in which the ring-shaped parts 1 are temporarily fixed and held by the uppermost, middle and lowermost ring holding portions 7 to 9 in the outer peripheral axis direction is When the workpiece W is placed on the jig stand B7 in an upright posture and is loaded onto the ring assembly work stand B8, the robot arm B1 is in a vertical posture in which the upper end small diameter portion 6 is gripped by the chuck unit B5. It is conveyed to a position above the cylindrical portion 2 in the upward standing posture by the movement.
The assembly holding jig A conveyed to the upper position of the cylindrical portion 2 is coaxially aligned and connected to the cylindrical portion 2 by the movement of the robot arm B1. At this time, as shown in FIG. 4, the lower end of the opening edge of the workpiece connecting cylindrical recess 15 connected so as to cover the column portion 2 is at a height position positioned in front of the lower annular groove 3c of the column portion 2. The assembly holding jig A is connected to the cylindrical portion 2.

円柱部２に組付け保持治具Ａが接続されると、図４の（ａ）に示すように、組付け保持治具Ａの中段、最下段のリング保持部８，９に仮止め保持されるリング状部品１間における外周（山形連設部１４の外周）にリング押下げハンドＢ３が当接（接触）するその外周側方（径方向外方）から閉じるように挿入介在され、また、リングストッパーＢ６が下段環状溝３ｃのやや下方位置で円柱部２の外周を挟み込むようにその外周側方から閉じて当接する。すると、これらの動作とほぼ同時位にハンド昇降用シリンダＢ２によるリング押下げハンドＢ３の下方への移動が開始し、組付け保持治具Ａの軸方向外周に沿って下降するリング押下げハンドＢ３の動きによって下段リング保持部９に仮止め保持されているリング状部品１がワークＷの円柱部２側に向かって押し下げ移送される。このとき、リング状部品１は、組付け保持治具Ａの下半側テーパ部１３にて拡径（拡開）されながら大径部１２に乗り上げられる。
リング押下げハンドＢ３によるリング状部品１の押し下げ移送がさらに進み、大径部１２を乗り越え通り過ぎたリング状部品１は円柱部２の下段環状溝３ｃへ移送される。このとき、下段環状溝３ｃの下側に位置してリングストッパーＢ６が当接していることで、リング状部品１は下段環状溝３ｃを通り越すことなく、拡径前の元の内径に戻る弾性変形（復元）によって下段環状溝３ｃに組み付けられる（図４の（ｂ））。 When the assembly holding jig A is connected to the cylindrical part 2, as shown in FIG. 4 (a), it is temporarily held by the middle and lowermost ring holding parts 8 and 9 of the assembly holding jig A. The ring pressing hand B3 is inserted and interposed so as to close from the outer peripheral side (radially outward) where the ring pressing hand B3 abuts (contacts) with the outer periphery between the ring-shaped parts 1 (the outer periphery of the mountain-shaped connecting portion 14). The ring stopper B6 is closed and abutted from the outer peripheral side so as to sandwich the outer periphery of the cylindrical portion 2 at a position slightly below the lower annular groove 3c. Then, the downward movement of the ring pressing hand B3 by the hand lifting cylinder B2 starts almost simultaneously with these operations, and the ring pressing hand B3 descends along the axial outer periphery of the assembly holding jig A. The ring-shaped component 1 temporarily held by the lower ring holding portion 9 is pushed down and transferred toward the cylindrical portion 2 side of the workpiece W. At this time, the ring-shaped component 1 rides on the large-diameter portion 12 while being expanded (expanded) by the lower half side tapered portion 13 of the assembly holding jig A.
The ring-shaped component 1 is further pushed down and transferred by the ring-pressing hand B3, and the ring-shaped component 1 that has passed over the large-diameter portion 12 is transferred to the lower annular groove 3c of the cylindrical portion 2. At this time, since the ring stopper B6 is located on the lower side of the lower annular groove 3c and the ring-shaped component 1 does not pass through the lower annular groove 3c, the elastic deformation returns to the original inner diameter before the diameter expansion. By (restoration), it is assembled to the lower annular groove 3c ((b) of FIG. 4).

下段環状溝３ｃに対するリング状部品１の組み付けが完了すると、リング押下げハンドＢ３、リングストッパーＢ６は開く。この開く動作によりリング押下げハンドＢ３、リングストッパーＢ６が組付け保持治具Ａ、円柱部２からそれぞれ離れると、ロボットアームＢ１が動作を開始し、ワーク接続円筒凹部１５の開口縁下端を円柱部２の中段環状溝３ｂの手前に位置させるように組付け保持治具Ａを上昇させる。 When the assembly of the ring-shaped part 1 to the lower annular groove 3c is completed, the ring pressing hand B3 and the ring stopper B6 are opened. When the ring pressing hand B3 and the ring stopper B6 are separated from the assembly holding jig A and the column part 2 by the opening operation, the robot arm B1 starts to operate, and the lower end of the opening edge of the workpiece connection cylindrical recess 15 is set to the column part. The assembly holding jig A is raised so as to be positioned in front of the middle stage annular groove 3b.

ワーク接続円筒凹部１５の開口縁下端が中段環状溝３ｂの手前高さ位置に位置合わせされると、図５の（ａ）に示すように、ハンド昇降用シリンダＢ２によりリング押下げハンドＢ３は組付け保持治具Ａの最上段、中段のリング保持部７，８に仮止め保持されるリング状部品１間の外周（山形連設部１４の外周）に当接するその外周側方から閉じるように挿入介在され、また、リングストッパーＢ６が中段環状溝３ｂのやや下方位置で円柱部２の外周を挟み込むようにその外周側方から閉じて当接する。すると、前記したように、ハンド昇降用シリンダＢ２によるリング押下げハンドＢ３の下方への移動開始によって組付け保持治具Ａの中段リング保持部８に仮止め保持されているリング状部品１が拡径されながらワークＷの円柱部１側に向かって押し下げ移送されて円柱部２外周の中段環状溝３ｂに組み付けられる（図５の（ｂ））。 When the lower end of the opening edge of the work connection cylindrical recess 15 is aligned with the front height position of the middle annular groove 3b, the ring push-down hand B3 is assembled by the hand lifting cylinder B2 as shown in FIG. Close from the outer peripheral side that contacts the outer periphery (the outer periphery of the mountain-shaped connecting portion 14) between the ring-shaped components 1 temporarily fixed to the upper and middle ring holding portions 7 and 8 of the attachment holding jig A. In addition, the ring stopper B6 is closed and abutted from the outer peripheral side so as to sandwich the outer periphery of the cylindrical portion 2 at a position slightly below the middle annular groove 3b. Then, as described above, the ring-shaped component 1 temporarily held by the middle ring holding portion 8 of the assembly holding jig A is expanded by the downward movement of the ring pressing hand B3 by the hand lifting cylinder B2. The workpiece W is pushed down and transferred toward the cylindrical portion 1 side of the workpiece W and assembled to the middle annular groove 3b on the outer periphery of the cylindrical portion 2 ((b) of FIG. 5).

中段環状溝３ｂに対するリング状部品１の組み付けが完了すると、前記したように、リング押下げハンドＢ３、リングストッパーＢ６が開き、ロボットアームＢ１が動作を開始し、ワーク接続円筒凹部１５の開口縁下端を円柱部２の上段環状溝３ａの手前に位置させるように組付け保持治具Ａを上昇させる。 When the assembly of the ring-shaped part 1 to the middle annular groove 3b is completed, as described above, the ring pressing hand B3 and the ring stopper B6 are opened, the robot arm B1 starts to operate, and the lower end of the opening edge of the workpiece connecting cylindrical recess 15 Assembling and holding jig A is raised so as to be positioned in front of the upper annular groove 3a of the cylindrical portion 2.

ワーク接続円筒凹部１５の開口縁下端が上段環状溝３ａの手前高さ位置に位置合わせされると、図６の（ａ）に示すように、ハンド昇降用シリンダＢ２によりリング押下げハンドＢ３は組付け保持治具Ａの最上段リング保持部７のリング状部品１のやや上方位置の外周（上半側テーパ部１１のテーパ外周）に当接するその外周側方から閉じられ、また、リングストッパーＢ６が上段環状溝３ａのやや下方位置で円柱部２の外周を挟み込むようにその外周側方から閉じて当接する。すると、前記したように、ハンド昇降用シリンダＢ２によるリング押下げハンドＢ３の下方への移動開始によって組付け保持治具Ａの最上段リング保持部７に仮止め保持されて最後に残るリング状部品１が拡径されながらワークＷの円柱部２側に向かって押し下げ移送されて円柱部２外周の上段環状溝３ａに組み付けられる（図６の（ｂ））。このとき、最上段リング保持部７と中段リング保持部８との間のテーパ肩部１１ａ、中段リング保持部８と最下段リング保持部９との山形連設部１４をそれぞれ拡径されながら乗り越え、最後に下半側テーパ部１３に沿って拡径されて大径部１２から円柱部２側へと押し下げ移送されるが、テーパ肩部１１ａおよび山形連設部１４の外径Ｌ２をリング状部品１に拡径方向への弾性変形によるストレスを掛けない程度の大きさに抑えた設定としていることで、リング状部品１は拡径前の元の内径に戻る弾性変形（復元）によって上段環状溝３ａに確実に組み付けられる。 When the lower end of the opening edge of the work connection cylindrical recess 15 is aligned with the front height position of the upper annular groove 3a, the ring push-down hand B3 is assembled by the hand lifting cylinder B2 as shown in FIG. Closed from the outer peripheral side that contacts the outer periphery (tapered outer periphery of the upper half side taper portion 11) of the ring-shaped part 1 of the uppermost ring holding portion 7 of the attachment holding jig A slightly from the outer periphery, and the ring stopper B6 Close and abut from the outer peripheral side so as to sandwich the outer periphery of the cylindrical portion 2 at a position slightly below the upper annular groove 3a. Then, as described above, the ring-shaped component that is temporarily held by the uppermost ring holding portion 7 of the assembly holding jig A by the start of the downward movement of the ring pressing hand B3 by the hand lifting cylinder B2 and remains at the end. While the diameter of the workpiece 1 is enlarged, the workpiece 1 is pushed down and transferred toward the cylindrical portion 2 side of the workpiece W and assembled to the upper annular groove 3a on the outer periphery of the cylindrical portion 2 ((b) of FIG. 6). At this time, the tapered shoulder portion 11a between the uppermost ring holding portion 7 and the middle ring holding portion 8 and the mountain-shaped connecting portion 14 between the middle ring holding portion 8 and the lowermost ring holding portion 9 are overcome while being expanded in diameter. Finally, the diameter is expanded along the lower half side taper portion 13 and is pushed down and transferred from the large diameter portion 12 to the cylindrical portion 2 side. The outer diameter L2 of the tapered shoulder portion 11a and the mountain-shaped connecting portion 14 is formed in a ring shape. By setting the part 1 to a size that does not apply stress due to elastic deformation in the diameter expansion direction, the ring-shaped part 1 is formed in an upper ring shape by elastic deformation (restoration) that returns to the original inner diameter before diameter expansion. It is securely assembled in the groove 3a.

このようにして、ワークＷ円柱部２の下段環状溝３ｃ、中段環状溝３ｂ、上段環状溝３ａに対してリング状部品１が順次個別に組み付けられる一連の組付け作業が完了すると、組付け保持治具ＡはロボットアームＢ１よってワークＷの円柱部２との接続状態から引き抜かれて治具待機台Ｂ７に搬送戻される。
以後は、前記した図４〜図６に示す動作を繰り返しながら、リング組付け作業台Ｂ８に搬入されるワークＷ円柱部２の各環状溝３ａ〜３ｃへのリング状部品１の組み付け作業が自動的に行われる。 In this way, when a series of assembling operations in which the ring-shaped parts 1 are individually assembled sequentially with respect to the lower annular groove 3c, the middle annular groove 3b, and the upper annular groove 3a of the workpiece W cylindrical portion 2 are completed, the assembly is held. The jig A is pulled out from the connection state with the cylindrical portion 2 of the workpiece W by the robot arm B1, and is conveyed back to the jig standby stand B7.
Thereafter, the operation of assembling the ring-shaped component 1 into the respective annular grooves 3a to 3c of the workpiece W cylindrical portion 2 carried into the ring assembling work table B8 is automatically performed while repeating the operations shown in FIGS. Done.

［他の実施形態の説明］
図７は、他の実施形態に係る組付け保持治具を示す側面図および同要部を拡大して示す概略説明図である。
つぎに、組付け保持治具Ａ１の他の実施形態について説明する。この実施形態は、前記した実施形態を一部変更したものであるため、その変更部分について主に説明し、共通部分については同じ符号を付することで重複説明を省略する。 [Description of Other Embodiments]
FIG. 7 is a side view showing an assembly holding jig according to another embodiment and a schematic explanatory view showing the main part in an enlarged manner.
Next, another embodiment of the assembly holding jig A1 will be described. Since this embodiment is a partial modification of the above-described embodiment, the changed portion will be mainly described, and the common portions are denoted by the same reference numerals, and redundant description will be omitted.

すなわち、組付け保持治具Ａ１は、図７に示すように、上半側テーパ部１１と下半側テーパ部１３との間の軸方向に間隔Ｌ１をおいて最上段、中段、最下段の各リング保持部７〜９全てをくびれ形状に形成して、前記したように、複数のリング状部品１を軸方向に間隔Ｌ１をおいて脱落不能な状態で仮止め保持し得る形態に構成してなるものである。 That is, as shown in FIG. 7, the assembly holding jig A <b> 1 includes the uppermost, middle, and lowermost stages at an interval L <b> 1 in the axial direction between the upper half taper portion 11 and the lower half taper portion 13. Each of the ring holding portions 7 to 9 is formed in a constricted shape, and as described above, a plurality of ring-shaped parts 1 are configured to be temporarily fixed and held in a state where they cannot be dropped at intervals L1 in the axial direction. It will be.

以上、本考案の実施の形態について図面を参照して詳述してきたが、具体的な構成はこれらの実施の形態に限られるものではなく、本考案の要旨を逸脱しない範囲の設計の変更などがあっても本考案に含まれる。前述の各図で示した実施の形態は、その目的および構成などに特に矛盾や問題がない限り、互いの記載内容を組み合わせることが可能である。また、各図の記載内容はそれぞれ独立した実施形態になり得るものであり、本考案の実施形態は各図を組み合わせた一つの実施形態に限定されるものではない。 As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and the design can be changed without departing from the gist of the present invention. Even if there is, it is included in the present invention. The embodiments described in the above drawings can be combined with each other as long as there is no particular contradiction or problem in the purpose and configuration. Moreover, the description content of each figure can become each independent embodiment, and embodiment of this invention is not limited to one embodiment which combined each figure.

Ａ，Ａ１組付け保持治具
Ｂリング組付け装置
Ｗワーク
１リング状部品
２円柱部
３ａ〜３ｃ環状溝
６上端小径部
７〜９リング保持部
１１上半側テーパ部
１１ａテーパ肩部
１２大径部
１３下半側テーパ部
１５ワーク接続円筒凹部 A, A1 Assembly holding jig B Ring assembly device W Workpiece 1 Ring-shaped part 2 Cylindrical part 3a-3c Annular groove 6 Small upper diameter part 7-9 Ring holding part 11 Upper half side taper part 11a Taper shoulder part 12 Large diameter Part 13 Lower half taper part 15 Workpiece connection cylindrical recess

Claims

It is applied to a ring assembling apparatus for assembling an elastic material or a ring-shaped part having an elastic expansion / contraction structure in the radial direction in each of the annular grooves formed in the axial direction formed in the circumferential direction of the outer periphery of the cylindrical portion of the workpiece, An assembly holding jig which is transported by the ring assembly apparatus and coaxially aligned and connected to the work column part,
A ring holding portion for temporarily holding and holding a plurality of the ring-shaped parts is provided in the axial direction on the outer periphery in the axial direction from the small diameter upper end smaller than the inner diameter of the ring-shaped part to the lower end larger than the inner diameter. Multiple stages,
The interval is set so that the ring assembly device can individually push down and transfer the ring-shaped parts to the cylindrical portion side, and can be assembled to each of the plurality of annular grooves in the cylindrical portion. An assembling and holding jig for ring-shaped parts.

The ring-shaped component assembling and holding jig according to claim 1, wherein at least one ring holding portion of the plurality of ring holding portions in the axial direction is formed in a constricted shape.

In the axial direction from the upper end small diameter part to the lower end side, the upper half side taper part formed to gradually increase in diameter from the upper end small diameter part in the axial direction;
A plurality of the ring holding portions in the axial direction formed continuously including the taper lower side of the upper half taper portion; and
A lower half-side taper portion formed so as to gradually expand in the axial direction continuously from the ring holding portion;
A large diameter portion formed continuously from the lower tapered portion of the lower half taper portion,
Among the plurality of ring holding portions in the axial direction, the uppermost ring holding portion in the axial direction is located on the lower taper side having a taper outer diameter corresponding to the inner diameter of the ring-shaped part in the upper half taper portion. Each of the ring holding portions below the uppermost ring holding portion is formed between the ring-shaped ring having a gradually reduced diameter inclination and a gentle diameter increasing inclination toward the lower end side. The ring-shaped component assembling and holding jig according to claim 1, wherein the jig is formed in a constricted shape corresponding to the inner diameter of the component.

A workpiece connection cylindrical recess formed at an inner diameter equal to or larger than the outer diameter of the columnar part of the workpiece and having a depth greater than the length from the upper end of the columnar part to the annular groove at the lower stage in the axial direction, The assembly holding jig for a ring-shaped part according to claim 1, wherein the jig is provided on the same axis.