JP2018204560A - Jig and manufacturing method - Google Patents

Abstract

To accurately fix a blade material to a face plate in a manufacturing process of an impeller.SOLUTION: A flat face 105a and an inclined face 101a inclined to an axial direction rather than the flat face 105a are formed in one region of a main body part of a jig 100, and a flat face 105b and an inclined face 103a inclined to the axial direction rather than the flat face 105b are formed in the other region. The inclined face 101a and the inclined face 103a are arranged at the main body part in a cross shape. An intersection between the inclined face 101a and the inclined face 103a are located in the axial direction rather than a face position between the flat face 105a and the flat face 105b, and a recess is formed between the face position and the intersection. In a state that protrusion 43, 44 formed at one end of a blade material 40 are inserted into penetration holes 12 formed at the face plate 10 of an impeller, the inclined face 101a presses either of the protrusions 43, 44, and the inclined face 103a presses the other of the protrusions 43, 44 to a direction opposite to a direction of the press of the inclined face 101a.SELECTED DRAWING: Figure 16

Description

本発明は、羽根車製造用の治具及び羽根車の製造方法に関する。   The present invention relates to an impeller manufacturing jig and an impeller manufacturing method.

羽根車の一種であるシロッコファンは、一組の面板（側板）と、面板間の円周方向に沿って間隔を置いて設けた多数の羽根材と、から構成される。シロッコファンの通常の製造構造は、例えば、Ａ．一枚板を、プレス加工で絞り成形する構造、Ｂ．リングに羽根材を捲締め、側板を捲締め加工する構造、或いはＣ．リングに羽根材を差し込み、一方向に折曲げて、この折曲箇所を溶接加工し、強度を確保し、面板を溶接加工する構造、等で行われている。   A sirocco fan, which is a kind of impeller, includes a pair of face plates (side plates) and a large number of blade members provided at intervals along the circumferential direction between the face plates. A typical manufacturing structure for sirocco fans is, for example, A. B. A structure in which a single plate is drawn by pressing. A structure in which blades are fastened to a ring and side plates are fastened, or C.I. The blade material is inserted into the ring, bent in one direction, the bent portion is welded, the strength is ensured, and the face plate is welded.

Ａ．〜Ｃ．構造のように、差し込み、溶接加工する製造構造では、作業が煩雑であること、複数の工程を要するため手間がかかること等の改良すべき点があった。   A. ~ C. As in the structure, in the manufacturing structure in which insertion and welding are performed, there are points to be improved such as troublesome work and time and labor due to a plurality of steps.

上記の改良点を改良すべく、特許文献１には、溶接を必要としない羽根車の製造方法が提案されている。この製造方法では、図１に示すような羽根車の製造を次のように行う。図４に示すように、羽根材４０を支持材３０のスリット３２にそれぞれ差し込み、図７〜図９に示すように、第１面板１０に設けられた貫通孔１２に差し込んだ羽根材４０の２つの凸部（外周突起部）４３、４４を板面に沿うように折り曲げて、第１面板１０に羽根材４０を固定する。そして、図１０、図１１に示すように、支持材３０のスリット３２の外周突起部３１を折り曲げてスリット３２を塞ぎ、羽根材４０を支持材３０に固定する。   In order to improve the above improvement, Patent Document 1 proposes an impeller manufacturing method that does not require welding. In this manufacturing method, an impeller as shown in FIG. 1 is manufactured as follows. As shown in FIG. 4, the blade member 40 is inserted into the slit 32 of the support member 30, and as shown in FIGS. 7 to 9, 2 of the blade member 40 inserted into the through hole 12 provided in the first face plate 10. The two protrusions (outer peripheral projections) 43 and 44 are bent along the plate surface, and the blade member 40 is fixed to the first face plate 10. Then, as shown in FIGS. 10 and 11, the outer peripheral protrusion 31 of the slit 32 of the support member 30 is bent to close the slit 32, and the blade member 40 is fixed to the support member 30.

上述の方法では、溶接を要しないものの、１枚の羽根材につき、上縁の２つの外周突起部と下縁の２つの外周突起部を、板面に沿うように、手作業で、それぞれ折り曲げ加工する必要がある。   In the above method, although welding is not required, two outer peripheral protrusions on the upper edge and two outer peripheral protrusions on the lower edge are bent manually along the plate surface for each blade member. Need to be processed.

このような、手作業に替わる折り曲げ加工として、従来の治具と方法に関して説明する。   A conventional jig and method will be described as a bending process instead of the manual operation.

即ち、図１９（ａ）に示すような、板状の治具であり、表面、裏面とも、先端部分がテーパ状に形成された治具６００を使用して、折り曲げ加工が行われていた。図１９（ａ）は斜視図であり、図１９（ｂ）は、上から見た場合の治具６００の押潰し様子を模式的に表す。図１９（ａ）、（ｂ）に示すように、２つの凸部４３、４４の間に、治具６００を差し入れ、この治具６００の幅方向の中心を通る鉛直軸を中心として、斜めに挿入した治具６００を押し下げることで、２つの凸部４３、４４に逆方向の力を加え、２つの凸部４３、４４を同時に折り曲げていた。   That is, it is a plate-shaped jig as shown in FIG. 19 (a), and the bending process is performed using the jig 600 in which the front and back surfaces are tapered. FIG. 19A is a perspective view, and FIG. 19B schematically shows a state in which the jig 600 is crushed when viewed from above. As shown in FIGS. 19A and 19B, a jig 600 is inserted between the two convex portions 43 and 44, and is tilted with a vertical axis passing through the center in the width direction of the jig 600 as a center. By pushing down the inserted jig 600, a force in the opposite direction was applied to the two convex portions 43 and 44, and the two convex portions 43 and 44 were bent at the same time.

特開２０１５−１５１８６２号公報Japanese Patent Laying-Open No. 2015-151862

上述した治具６００を使用した場合、複数個の治具６００、又は多数の治具６００を、それぞれ、複数個の２つの凸部（外周突起部）、又は全部の２つの凸部間に、傾けた状態で、差し込み、その状態で押込み加工（折り曲げ加工）する。そのため、作業には、熟練を要することと、神経を研ぎ澄まして行うことが要求される。よって、大変であり、かつ厄介である。また、治具６００の取扱いを間違えると、外周突起部の一方または両方を根元から折り曲げることができず、外周突起部にねじれが発生し、羽根材を面板に精度よく固定することができない。   When the jig 600 described above is used, a plurality of jigs 600 or a large number of jigs 600 are respectively connected between a plurality of two convex portions (outer peripheral projections) or between all two convex portions. Insert it in a tilted state, and push it in that state. For this reason, the work requires skill and sharpening of the nerve. Therefore, it is difficult and troublesome. Further, if the jig 600 is handled incorrectly, one or both of the outer peripheral protrusions cannot be bent from the base, and the outer peripheral protrusions are twisted, and the blade member cannot be fixed to the face plate with high accuracy.

本発明は、上述の実情に鑑みてなされたものであり、折り曲げ加工により面板に羽根材を取り付ける構成の羽根車（ファン）の製造工程において、熟練を要することなく、かつ通常の作業で（治具の上下動作のみで）、羽根材を精度よく面板に固定することを目的とする。   The present invention has been made in view of the above-described circumstances. In the manufacturing process of an impeller (fan) configured to attach a blade member to a face plate by bending processing, the present invention does not require skill and is performed in a normal operation (recovery). The purpose is to fix the blade material to the face plate accurately.

上記目的を達成するため、本発明に係る治具は、
ファンの製造に使用される治具であって、
この治具は、本体部の一方部位に、一方平坦面と、この一方平坦面より、軸方向に傾斜した一方傾斜面とを形成し、また、前記本体部の他方部位に、他方平坦面と、この他方平坦面より、軸方向に傾斜した他方傾斜面とを形成し、
この一方傾斜面と他方傾斜面とを、前記本体部に、クロス形状に配置するとともに、この一方傾斜面と他方傾斜面との交差部は、前記一方平坦面と前記他方平坦面との面位置より軸方向に位置することで、この面位置と交差部との間に窪み部を備える構成であって、
前記ファンの面板に形成された貫通孔に、前記ファンの羽根材の一端に形成された一対の外周突起部が挿入された状態で、前記一方傾斜面は、前記一対の外周突起部の一方を押圧し、前記他方傾斜面は、前記一対の外周突起部の他方を前記一方傾斜面の押圧の方向とは反対の方向に押圧する、
ことを特徴とする。 In order to achieve the above object, the jig according to the present invention is:
A jig used to manufacture a fan,
This jig forms one flat surface at one part of the main body part and one inclined surface inclined in the axial direction from the one flat surface, and the other flat surface at the other part of the main body part. The other flat surface is formed with the other inclined surface inclined in the axial direction,
The one inclined surface and the other inclined surface are arranged in a cross shape on the main body, and the intersection of the one inclined surface and the other inclined surface is a surface position between the one flat surface and the other flat surface. By being positioned in the more axial direction, it is a configuration comprising a recess between this surface position and the intersection,
In a state where a pair of outer peripheral projections formed at one end of the fan blade material is inserted into a through hole formed in the face plate of the fan, the one inclined surface is formed by inserting one of the pair of outer peripheral projections. The other inclined surface presses the other of the pair of outer peripheral projections in a direction opposite to the direction of pressing the one inclined surface,
It is characterized by that.

前記一方傾斜面と前記他方傾斜面の傾きは略等しくてもよい。   The inclination of the one inclined surface and the other inclined surface may be substantially equal.

上記目的を達成するため、本発明に係る製造方法は、
治具を使用してファンを製造する方法であって、
前記治具は、本体部の一方部位に、一方平坦面と、この一方平坦面より、軸方向に傾斜した一方傾斜面とを形成し、また、前記本体部の他方部位に、他方平坦面と、この他方平坦面より、軸方向に傾斜した他方傾斜面とを形成し、
この一方傾斜面と他方傾斜面とを、前記本体部に、クロス形状に配置するとともに、この一方傾斜面と他方傾斜面との交差部は、前記一方平坦面と前記他方平坦面との面位置より軸方向に位置することで、この面位置と交差部との間に窪み部を備える構成であって、
前記ファンの面板に形成された貫通孔に、前記ファンの羽根材の一端に形成された一対の外周突起部を挿入して、前記ファンを組み立てる組み立てステップと、
前記治具の前記一方傾斜面を、前記貫通孔から突出した前記一対の外周突起部の一方に押圧し、前記他方傾斜面を、前記一対の外周突起部の他方に押圧し、前記羽根材を前記面板に固定する第１固定ステップと、
を含む。 In order to achieve the above object, the manufacturing method according to the present invention comprises:
A method of manufacturing a fan using a jig,
The jig forms one flat surface at one part of the main body part and one inclined surface inclined in the axial direction from the one flat surface, and the other flat surface at the other part of the main body part. The other flat surface is formed with the other inclined surface inclined in the axial direction,
The one inclined surface and the other inclined surface are arranged in a cross shape on the main body, and the intersection of the one inclined surface and the other inclined surface is a surface position between the one flat surface and the other flat surface. By being positioned in the more axial direction, it is a configuration comprising a recess between this surface position and the intersection,
An assembly step of assembling the fan by inserting a pair of outer peripheral protrusions formed at one end of the fan blade material into the through-hole formed in the face plate of the fan;
The one inclined surface of the jig is pressed against one of the pair of outer peripheral protrusions protruding from the through hole, the other inclined surface is pressed against the other of the pair of outer peripheral protrusions, and the blade member is A first fixing step for fixing to the face plate;
including.

前記第１固定ステップにおいて、前記一方傾斜面の押圧により、前記一対の外周突起部の一方を前記面板の面に沿って曲げ、前記他方傾斜面の押圧により、前記一対の外周突起部の他方を前記面板の面に沿って且つ前記一対の外周突起部の一方とは逆の方向に曲げてもよい。   In the first fixing step, one of the pair of outer peripheral protrusions is bent along the surface of the face plate by pressing the one inclined surface, and the other of the pair of outer peripheral protrusions is pressed by pressing the other inclined surface. You may bend in the direction opposite to one of a pair of said outer periphery projection part along the surface of the said face plate.

前記第１固定ステップにおいて、前記治具の前記一方傾斜面が、前記面板に当接するまで、前記一方傾斜面で、前記一対の外周突起部の一方に押圧し、前記他方傾斜面で、前記面板に当接するまで、前記他方傾斜面を前記一対の外周突起部の他方に押圧してもよい。   In the first fixing step, the one inclined surface is pressed against one of the pair of outer peripheral protrusions until the one inclined surface of the jig comes into contact with the face plate, and the other inclined surface presses the face plate. The other inclined surface may be pressed against the other of the pair of outer peripheral protrusions until it comes into contact with the other.

前記第１固定ステップにおいて、さらに、前記羽根材の前記一対の外周突起部を前記面板にプレスしてもよい。   In the first fixing step, the pair of outer peripheral projections of the blade member may be pressed onto the face plate.

前記組み立てステップにおいて、前記ファンの支持材のスリットに前記羽根材をそれぞれ差し込み、前記面板に形成された貫通孔に、前記一対の外周突起部を挿入してもよい。   In the assembly step, the blade members may be inserted into slits of the support material of the fan, and the pair of outer peripheral projections may be inserted into through holes formed in the face plate.

さらに、前記支持材の円周方向に前記スリットと交互に設けられ、前記支持材の外縁から内縁に向かって形成された切欠けと、前記スリットと、の間に形成された外周突起部を塑性変形して、前記スリットに差し込まれた前記羽根材を前記支持材に固定する第２固定ステップ、
を含んでもよい。 Further, the outer peripheral protrusions formed between the slits provided alternately with the slits in the circumferential direction of the support material and formed from the outer edge to the inner edge of the support material are plastic. A second fixing step for deforming and fixing the blade member inserted into the slit to the support member;
May be included.

本発明によれば、折り曲げ加工により面板に羽根材を取り付ける構成の羽根車（ファン）の製造工程において、治具の上下動作のみ（容易な操作）で、かつ精度よく羽根材を面板に固定することができる。   According to the present invention, in a manufacturing process of an impeller (fan) configured to attach a blade member to a face plate by bending, only the vertical movement of the jig (easy operation) is performed and the blade member is fixed to the face plate with high accuracy. be able to.

本発明の実施の形態に係る羽根車の斜視図である。It is a perspective view of the impeller which concerns on embodiment of this invention. 実施の形態に係る羽根材を拡大して示す平面図である。It is a top view which expands and shows the blade | wing material which concerns on embodiment. 実施の形態に係る第１面板を示す平面図である。It is a top view which shows the 1st faceplate which concerns on embodiment. 実施の形態に係る羽根車の組立斜視図である。It is an assembly perspective view of an impeller concerning an embodiment. 実施の形態に係る支持材を示す平面図である。It is a top view which shows the support material which concerns on embodiment. 実施の形態に係る支持材の一部を拡大した斜視図である。It is the perspective view which expanded some support materials concerning an embodiment. 羽根材を第１面板に固定する際の、凸部の挿入状態の様子を拡大して示す斜視図である。It is a perspective view which expands and shows the mode of the insertion state of a convex part at the time of fixing a blade | wing material to a 1st faceplate. 羽根材を第１面板に仮固定した後の様子を拡大して示す斜視図である。It is a perspective view which expands and shows the mode after temporarily fixing a blade | wing material to the 1st faceplate. 羽根材を第１面板に固定した後の様子を拡大して示す斜視図である。It is a perspective view which expands and shows the mode after fixing a blade | wing material to the 1st faceplate. 羽根材を支持材に固定する際の様子を拡大して示す斜視図である。It is a perspective view which expands and shows a mode at the time of fixing a blade | wing material to a support material. 羽根材を支持材に固定する際の様子を拡大して示す平面図である。It is a top view which expands and shows the mode at the time of fixing a blade | wing material to a support material. 実施の形態に係る治具を拡大して示す斜視図である。It is a perspective view which expands and shows the jig | tool which concerns on embodiment. （ａ）は実施の形態に係る治具の正面図、（ｂ）は実施の形態に係る治具の側面図、（ｃ）は実施の形態に係る治具の平面図である。(A) is a front view of the jig according to the embodiment, (b) is a side view of the jig according to the embodiment, and (c) is a plan view of the jig according to the embodiment. 実施の形態に係る治具の製造方法の説明するに必要とする斜視図を拡大して示す。The perspective view required in order to demonstrate the manufacturing method of the jig | tool which concerns on embodiment is expanded and shown. 実施の形態に係る治具の製造方法の説明するに必要とする斜視図を拡大して示す。The perspective view required in order to demonstrate the manufacturing method of the jig | tool which concerns on embodiment is expanded and shown. 実施の形態に係る治具を使用して羽根材を第１面板に固定する様子を拡大して示す斜視図である。It is a perspective view which expands and shows a mode that a blade | wing material is fixed to a 1st faceplate using the jig | tool which concerns on embodiment. （ａ）、（ｂ）は、実施の形態に係る治具を使用して羽根材を第１面板に仮固定する様子を模式的に示す図で、（ａ）は本発明の治具を押し下げようとする凸部の側面図、（ｂ）は本発明の治具で仮固定をした図である。(A), (b) is a figure which shows typically a mode that a blade | wing material is temporarily fixed to a 1st faceplate using the jig | tool which concerns on embodiment, (a) pushes down the jig | tool of this invention. The side view of the convex part which is going to be used, (b) is the figure temporarily fixed with the jig | tool of this invention. （ａ）、（ｂ）は、実施の形態に係る治具を使用して羽根材を第１面板に固定する様子を模式的に示す図である。(A), (b) is a figure which shows typically a mode that a blade | wing material is fixed to a 1st faceplate using the jig | tool which concerns on embodiment. （ａ）は、従来の他の治具を使用して、羽根材を第１面板に仮固定する際の様子を拡大して示す斜視図であり、（ｂ）は、羽根材を第１面板に固定する際の様子を模式的に拡大して表す平面図である。(A) is a perspective view which expands and shows the mode at the time of temporarily fixing a blade | wing material to a 1st face plate using another conventional jig | tool, (b) is a 1st face plate. FIG.

以下、本発明の実施の形態を説明する。実施の形態に係る治具は、折り曲げ加工により面板に羽根材を取り付ける構成の羽根車の製造に使用されるものである。   Embodiments of the present invention will be described below. The jig which concerns on embodiment is used for manufacture of the impeller of the structure which attaches a blade | wing material to a face plate by a bending process.

まず、製造の対象となる羽根車（ファン）１について説明する。羽根車１は、金属製で、送風機に使用される。この送風機は、例えば、高温送風用の送風機、食品、食品等の加熱又は冷却用の送付機、換気用の送風機である。   First, an impeller (fan) 1 to be manufactured will be described. The impeller 1 is made of metal and used for a blower. This blower is, for example, a blower for high-temperature blow, a sending machine for heating or cooling food, food, etc., or a blower for ventilation.

以下の説明においては、相互に直交するＸ軸、Ｙ軸、Ｚ軸からなるＸＹＺ座標系を用いる。本実施の形態では、Ｘ軸とＹ軸に平行なＸＹ平面は水平面であり、Ｚ軸は鉛直軸に平行な軸である。   In the following description, an XYZ coordinate system including an X axis, a Y axis, and a Z axis that are orthogonal to each other is used. In the present embodiment, the XY plane parallel to the X axis and the Y axis is a horizontal plane, and the Z axis is an axis parallel to the vertical axis.

図１は羽根車１の斜視図である。羽根車１は、第１面板１０と、第１面板１０に間隔を置いて併設した第２面板２０と、第１面板１０と第２面板２０との間に設けた支持材３０と、第１面板１０と第２面板２０と支持材３０とに支持される複数の羽根材４０と、を備える。羽根材４０は、Ｘ方向（短手方向）の辺が円弧状に形成された板状の部材である。羽根車１を紙面上側から見た場合、羽根車は反時計回り（以下、回転方向Ｂ）に回転する。   FIG. 1 is a perspective view of the impeller 1. The impeller 1 includes a first face plate 10, a second face plate 20 provided adjacent to the first face plate 10 at an interval, a support member 30 provided between the first face plate 10 and the second face plate 20, A plurality of blade members 40 supported by the face plate 10, the second face plate 20, and the support material 30. The blade member 40 is a plate-like member having sides in the X direction (short direction) formed in an arc shape. When the impeller 1 is viewed from the upper side of the drawing, the impeller rotates counterclockwise (hereinafter referred to as a rotation direction B).

図２に示すように、羽根材４０の上縁には、上縁より突出するように、一対の凸部（外周突起部）４３、４４が形成されている。凸部４３、４４の根本部は、凸部４３、４４の上部と比べて細くなっている（括れているか、肉薄形状、スリット加工等）ため、曲げ強度が弱い。従って、凸部４３、４４の上部が力を受けると、凸部４３、４４は、根本部か、その根本部近傍とかを起点に折れ曲がる。   As shown in FIG. 2, a pair of protrusions (outer peripheral protrusions) 43 and 44 are formed on the upper edge of the blade member 40 so as to protrude from the upper edge. Since the base part of the convex parts 43 and 44 is thinner than the upper part of the convex parts 43 and 44 (it is constricted, thin shape, slit process, etc.), bending strength is weak. Therefore, when the upper portions of the convex portions 43 and 44 receive a force, the convex portions 43 and 44 bend from the root portion or the vicinity of the root portion.

羽根材４０の下縁には、下縁より突出するように、一対の凸部（外周突起部）４５、４６が形成されている。凸部４３、４４と同様に、凸部４５、４６の根本部は、凸部４５、４６の下部と比べて細くなっている。従って、凸部４５、４６の下部が力を受けると、凸部４５、４６は、根本部か、その根本部近傍とかを起点に折れ曲がる。   A pair of convex portions (outer peripheral projection portions) 45 and 46 are formed on the lower edge of the blade member 40 so as to protrude from the lower edge. Similar to the convex portions 43 and 44, the root portions of the convex portions 45 and 46 are thinner than the lower portions of the convex portions 45 and 46. Therefore, when the lower portions of the convex portions 45 and 46 receive a force, the convex portions 45 and 46 bend starting from the root portion or the vicinity of the root portion.

紙面に向かって右側の羽根材４０の長手方向の外縁には、中央部やや上方に、段付き三角形状の中心部側切欠き４１が形成されている。紙面に向かって左側の羽根材４０の長手方向の外縁には、中央部やや上方に、三角形状の外周部側切欠き４２が形成されている。中心部側切欠き４１、外周部側切欠き４２のＺ軸方向の位置は同じである。中心部側切欠き４１、外周部側切欠き４２は、羽根材４０の外縁から、対峙方向（内方、それぞれ中心に向かって）に向かって収斂された切欠きである。   On the outer edge in the longitudinal direction of the right blade member 40 toward the paper surface, a stepped triangular center-side notch 41 is formed slightly above the center. On the outer edge in the longitudinal direction of the blade member 40 on the left side toward the paper surface, a triangular outer peripheral side notch 42 is formed slightly above the center. The positions of the center side cutout 41 and the outer peripheral side cutout 42 in the Z-axis direction are the same. The center side cutout 41 and the outer peripheral side cutout 42 are cutouts converged from the outer edge of the blade member 40 toward the facing direction (inward and toward the center, respectively).

図３に示すように、第１面板１０は、中心部に円形の開口部１１が形成された円形の部材である。第１面板１０には、外縁に沿って、円弧状又は直線状の貫通孔１２が複数形成されている。貫通孔１２には、羽根材４０の凸部４３、４４が挿入される。図面上では、一つの凸部４３、４４の挿入と折曲げを説明する。   As shown in FIG. 3, the first face plate 10 is a circular member in which a circular opening 11 is formed at the center. A plurality of arc-shaped or linear through-holes 12 are formed in the first face plate 10 along the outer edge. The protrusions 43 and 44 of the blade member 40 are inserted into the through hole 12. In the drawing, the insertion and bending of one convex portion 43, 44 will be described.

第２面板２０は、第１面板と同一の形状を有し、第１面板と同じ構造、機能を備える。図４に示すように、第２面板２０は、中心部に開口部２１が形成された円形の部材であり、外縁に沿って複数の貫通孔２２が形成されている。貫通孔２２には、羽根材４０の凸部４５、４６が挿入される。   The second face plate 20 has the same shape as the first face plate, and has the same structure and function as the first face plate. As shown in FIG. 4, the second face plate 20 is a circular member having an opening 21 formed in the center, and a plurality of through holes 22 are formed along the outer edge. The protrusions 45 and 46 of the blade member 40 are inserted into the through hole 22.

図５に示すように、支持材３０は、中心部に貫通孔３４ａが形成された円形の部材である。貫通孔３４ａの周囲には、４つの貫通孔３４ｂが形成されている。羽根車１は、ハブ（不図示）を介して羽根車１を回転するモータ（不図示）の回転軸の先端部に固定されるが、貫通孔３４ｂは、羽根車１をハブに固定するためのネジを通す孔である。   As shown in FIG. 5, the support member 30 is a circular member having a through hole 34a formed in the center. Four through holes 34b are formed around the through hole 34a. The impeller 1 is fixed to the tip of a rotating shaft of a motor (not shown) that rotates the impeller 1 via a hub (not shown), but the through hole 34b is for fixing the impeller 1 to the hub. It is a hole through which the screw passes.

支持材３０の外周面３０ａには、外縁から中心部に向かって、異なる幅でなる（入口が広く、順次、狭くなる）回転方向Ｂに向かって突出した円弧状のスリット３２と、スリット３２に併設するように設けられ、かつ外縁から中心部に向かって幅が狭くなる略山形形状の切欠き３３と、が交互に形成されている。さらに、それぞれのスリット３２と切欠き３３との間には、折り曲げ可能な外周突起部３１が形成されている。切欠き３３の内部壁面３９に力を加えることで、外周突起部３１は塑性変形する。これによって、スリット３２の入り口の幅が狭まる。   On the outer peripheral surface 30 a of the support member 30, there are an arc-shaped slit 32 projecting in the rotation direction B having different widths from the outer edge toward the central portion (the entrance is wide and narrows sequentially), and the slit 32. Cutouts 33 having a substantially chevron shape, which are provided so as to be provided side by side and whose width decreases from the outer edge toward the center, are alternately formed. Further, a bendable outer peripheral projection 31 is formed between each slit 32 and the notch 33. By applying a force to the inner wall surface 39 of the notch 33, the outer peripheral projection 31 is plastically deformed. As a result, the width of the entrance of the slit 32 is narrowed.

図６に示すように、回転方向Ｂとは逆方向側の内部壁面３８には、中心部に向かって順に２つの半円状の凸部３５、３６が形成されている。凸部３５、３６は、回転方向Ｂ側の内部壁面３７に向かって突出している。凸部３５、３６が半円状の形状を有しているのは、後述の羽根材４０のスリット３２への差し込みを容易にするためである。凸部３５、３６の先端と内部壁面３７との間の距離は、羽根材４０の厚さより、やや狭くなっている。   As shown in FIG. 6, two semicircular convex portions 35 and 36 are formed on the inner wall surface 38 on the side opposite to the rotation direction B in order toward the center portion. The convex portions 35 and 36 protrude toward the inner wall surface 37 on the rotation direction B side. The reason why the convex portions 35 and 36 have a semicircular shape is to facilitate insertion of a blade member 40 described later into a slit 32. The distance between the tips of the convex portions 35 and 36 and the inner wall surface 37 is slightly narrower than the thickness of the blade member 40.

次に、羽根車１の製造方法を説明する。図４を参照する。まず、支持材３０のスリット３２に、羽根材４０を差し込む。具体的には、支持材３０のスリット３２の開口部から、羽根材４０の中心部側切欠き４１を差し入れ、中心部側切欠き４１の最奥部がスリット３２の最奥部に突き当たるまで、羽根材４０をスリット３２の最奥部に向かって差し込む。残りの羽根材４０についても同様に、それぞれスリット３２に順次差し込む。   Next, a method for manufacturing the impeller 1 will be described. Please refer to FIG. First, the blade member 40 is inserted into the slit 32 of the support member 30. Specifically, from the opening of the slit 32 of the support member 30, until the center part side notch 41 of the blade member 40 is inserted, until the innermost part of the center part side notch 41 hits the innermost part of the slit 32, The blade member 40 is inserted toward the innermost part of the slit 32. Similarly, the remaining blade members 40 are sequentially inserted into the slits 32, respectively.

次に、支持材３０に差し込まれた羽根材４０の凸部４３、４４に、第１面板１０の貫通孔１２を被挿する。被挿は、一つか、複数個を同時にする。これにより、図７に示すように、一つの貫通孔１２に、一つの凸部４３、４４が、第１面板１０の上面から突出する。この被挿と、各凸部４３、４４が、第１面板１０の上面から、それぞれ突出する作業を、個別か、複数個同時に作業する。   Next, the through hole 12 of the first face plate 10 is inserted into the convex portions 43 and 44 of the blade member 40 inserted into the support member 30. One or more insertions are made simultaneously. As a result, as shown in FIG. 7, one convex portion 43, 44 projects from the upper surface of the first face plate 10 in one through hole 12. The insertion and the operations in which the convex portions 43 and 44 protrude from the upper surface of the first face plate 10 are performed individually or simultaneously.

続いて、図８に示すように、後述する実施の形態に係る治具１００の押し下げ（押圧）で、凸部４４の先端部を、第１面板１０の上面に沿うように、回転方向Ｂに向かって仮折り曲げる。凸部４３を回転方向Ｂとは逆方向に向かって仮折り曲げる。その後、図１８（ｂ）に示す他のプレス治具５００の押圧により、図９の如く、折り曲げて固定する。この作業で、これにより、羽根材４０は、第１面板１０から抜けない。同様に、残りの羽根材４０の凸部４３、４４も第１面板１０に沿うように折り曲げる。このようにして、羽根材４０が、第１面板１０に固定される（第１固定ステップ）。各治具１００、５００は、図示しないプレス機械に、通常は、多数個セットし、一基に仮折り曲げ・固定折り曲げ加工する。多数個の数は限定されない。   Subsequently, as shown in FIG. 8, the tip end portion of the convex portion 44 is rotated in the rotation direction B so as to be along the upper surface of the first face plate 10 by pressing (pressing) the jig 100 according to an embodiment described later. Fold it toward you. The convex portion 43 is temporarily bent in the direction opposite to the rotation direction B. Then, it is bent and fixed as shown in FIG. 9 by pressing with another pressing jig 500 shown in FIG. In this operation, the blade member 40 does not come off from the first face plate 10. Similarly, the convex portions 43 and 44 of the remaining blade member 40 are also bent along the first face plate 10. In this way, the blade member 40 is fixed to the first face plate 10 (first fixing step). A large number of jigs 100 and 500 are usually set in a press machine (not shown), and are temporarily bent and fixedly bent together. The number of large numbers is not limited.

羽根材４０を第２面板２０へ固定する方法も同様であり、羽根材４０の凸部４５、４６に、第２面板２０の貫通孔２２を下側から被挿し（図示省略）、凸部４５を回転方向Ｂに向かって折り曲げ、凸部４６を回転方向Ｂとは逆方向に向かって折り曲げる（図示省略）。これにより、羽根材４０は、第２面板２０から抜けない。同様に、残りの羽根材４０の凸部４５、４６も第２面板２０に沿うように折り曲げる。このようにして、羽根材４０が、第２面板２０に固定される（第１固定ステップ）。   The method of fixing the blade member 40 to the second face plate 20 is the same. The through hole 22 of the second face plate 20 is inserted into the convex portions 45 and 46 of the blade member 40 from below (not shown), and the convex portion 45 is inserted. Is bent in the rotation direction B, and the convex portion 46 is bent in the direction opposite to the rotation direction B (not shown). Thereby, the blade member 40 does not come off from the second face plate 20. Similarly, the convex portions 45 and 46 of the remaining blade member 40 are also bent along the second face plate 20. In this way, the blade member 40 is fixed to the second face plate 20 (first fixing step).

その後、羽根材４０を、支持材３０に固定するため、スリット３２の入り口を塞ぐ。図１０、図１１に示すように、外周突起部３１が羽根材４０の外周部側切欠き４２に入り込むまで、外周突起部３１を折り曲げる。従って、羽根材４０は支持材３０に固定される（第２固定ステップ）。同様に、残りの外周突起部３１を、羽根材４０に向かって折り曲げる。   Thereafter, the entrance of the slit 32 is closed to fix the blade member 40 to the support member 30. As shown in FIGS. 10 and 11, the outer peripheral protrusion 31 is bent until the outer peripheral protrusion 31 enters the outer peripheral side notch 42 of the blade member 40. Therefore, the blade member 40 is fixed to the support member 30 (second fixing step). Similarly, the remaining outer peripheral projection 31 is bent toward the blade member 40.

以上の作業により、羽根材４０、第１面板１０、支持材３０及び第２面板２０は、一体化される。以上が、羽根車１の従来の製造方法である。   By the above operation, the blade member 40, the first face plate 10, the support member 30, and the second face plate 20 are integrated. The above is the conventional manufacturing method of the impeller 1.

本実施の形態に係る治具は、上述の羽根車１の製造工程のうち、羽根材４０の凸部４３、４４を第１面板１０に対して固定し、凸部４５、４６を第２面板２０に対して固定する工程（第１固定ステップ）で使用される。   The jig which concerns on this Embodiment fixes the convex parts 43 and 44 of the blade material 40 with respect to the 1st face plate 10 among the manufacturing processes of the above-mentioned impeller 1, and makes the convex parts 45 and 46 a 2nd face plate. 20 is used in the step of fixing to the first step (first fixing step).

図１２に、実施の形態に係る治具１００の外観を示す。図１３（ａ）〜（ｃ）に治具１００の正面図、側面図、平面図を示す。図１２、１３に示すように、治具１００の本体部１００−１の側面１０１、１０３はそれぞれＹＺ平面に平行な面である。   FIG. 12 shows the appearance of the jig 100 according to the embodiment. The front view, side view, and plan view of the jig 100 are shown in FIGS. As shown in FIGS. 12 and 13, the side surfaces 101 and 103 of the main body 100-1 of the jig 100 are surfaces parallel to the YZ plane.

本体部１００−１の一方の部位には、平坦面１０５ａ（一方平坦面）と、平坦面１０５ａから延びた傾斜面１０１ａ（一方傾斜面）と、が形成されている。傾斜面１０１ａは、側面１０１に対して、即ちＹＺ平面に対して、所定の角度傾斜している。さらに、本体部１００−１の他方の部位には、平坦面１０５ｂ（他方平坦面）と、平坦面１０５ｂから延びた傾斜面１０３ａ（他方傾斜面）と、が形成されている。傾斜面１０３ａは、側面１０３に対して、即ちＹＺ平面に対して、所定の角度傾斜している。   A flat surface 105a (one flat surface) and an inclined surface 101a (one inclined surface) extending from the flat surface 105a are formed in one part of the main body 100-1. The inclined surface 101a is inclined at a predetermined angle with respect to the side surface 101, that is, with respect to the YZ plane. Furthermore, a flat surface 105b (the other flat surface) and an inclined surface 103a (the other inclined surface) extending from the flat surface 105b are formed in the other part of the main body 100-1. The inclined surface 103a is inclined at a predetermined angle with respect to the side surface 103, that is, with respect to the YZ plane.

図１３（ａ）〜（ｂ）に示すように、平坦面１０５ａ、１０５ｂは、ＸＺ平面に平行な面である。また、平坦面１０５ａ、１０５ｂは、側面１０１、１０３に対して、即ち、ＹＺ平面に対して垂直な面である。   As shown in FIGS. 13A to 13B, the flat surfaces 105a and 105b are surfaces parallel to the XZ plane. The flat surfaces 105a and 105b are surfaces perpendicular to the side surfaces 101 and 103, that is, the YZ plane.

図１３（ｂ）に示すように、傾斜面１０１ａ、１０３ａは、Ｚ軸（軸方向）に対して角度θだけ傾斜している。よって、治具１００を側面１０２、１０４側から見た場合、側面１０２、１０４は、略台形形状である。傾斜面１０１ａ、１０３ａは、それぞれの傾斜方向が逆となるように形成されている。よって、図１３（ｂ）に示すように、治具１００を側面１０４から見た場合、治具１００は、傾斜面１０１ａと１０３ａとが交差する形状（クロス形状）となるよう形成されている。傾斜面１０１ａ、１０３ａが交差するクロス位置１０８（交差部）のＹ軸（軸方向）における位置は、平坦面１０５ａと平坦面１０５ｂのＹ軸（軸方向）における面位置より下である。よって、平坦面１０５ａの面位置と平坦面１０５ｂの面位置との間に窪み（窪み部１０７）を形成する。   As shown in FIG. 13B, the inclined surfaces 101a and 103a are inclined by an angle θ with respect to the Z axis (axial direction). Therefore, when the jig 100 is viewed from the side surfaces 102 and 104, the side surfaces 102 and 104 have a substantially trapezoidal shape. The inclined surfaces 101a and 103a are formed so that the respective inclination directions are reversed. Therefore, as shown in FIG. 13B, when the jig 100 is viewed from the side surface 104, the jig 100 is formed in a shape (cross shape) where the inclined surfaces 101a and 103a intersect. The position in the Y axis (axial direction) of the cross position 108 (intersection) where the inclined surfaces 101a and 103a intersect is lower than the surface position in the Y axis (axial direction) of the flat surface 105a and the flat surface 105b. Therefore, a depression (depression 107) is formed between the surface position of the flat surface 105a and the surface position of the flat surface 105b.

治具１００は、例えば、図１４に示すような直方体に形成された金属部材Ｍを切削して製造される。以下の説明においては、ＹＺ平面に平行な平面であって、図面手前側の平面を側面１０１とする。Ｚ軸の正の方向からこの金属部材Ｍを見た場合に、側面１０１から時計回りに、側面１０２、１０３、１０４とする。ＸＹ平面に平行な平面であって、図面上部側の平面を側面１０５とし、側面１０５に対向する面を側面１０６とする。尚、治具１００は鋳造での成形も可能である。   The jig 100 is manufactured, for example, by cutting a metal member M formed in a rectangular parallelepiped as shown in FIG. In the following description, the side surface 101 is a plane parallel to the YZ plane and the front side of the drawing. When the metal member M is viewed from the positive direction of the Z axis, the side surfaces 102, 103, and 104 are set clockwise from the side surface 101. A plane parallel to the XY plane, the plane on the upper side of the drawing is a side surface 105, and a surface facing the side surface 105 is a side surface 106. The jig 100 can be formed by casting.

金属部材Ｍの切削は以下のように行う。まず、図１４に示すように、側面１０１の片側（側面１０１に向かって右側。側面１０４に接している側）の半分を斜めに削る。このとき、削り出した後の傾斜面１０１ａが、側面１０１に対して角度θとなるよう側面１０１を削る。このとき、同時に側面１０５も削られる。角度θは、側面１０１の所定の範囲が残るように、かつ、側面１０５の所定の範囲が残るように決められる。側面１０５の残された面（斜線部分）が平坦面１０５ａとなる。側面１０１の所定の範囲を残すのは、治具１００の使用の際の操作性のためであり、側面１０５の所定の範囲を残すのは、治具１００の強度を維持するためである。   The metal member M is cut as follows. First, as shown in FIG. 14, half of one side of the side surface 101 (right side toward the side surface 101; the side in contact with the side surface 104) is shaved obliquely. At this time, the side surface 101 is cut so that the inclined surface 101a after cutting is at an angle θ with respect to the side surface 101. At this time, the side surface 105 is also shaved. The angle θ is determined so that a predetermined range of the side surface 101 remains and a predetermined range of the side surface 105 remains. The remaining surface (shaded portion) of the side surface 105 becomes the flat surface 105a. The reason why the predetermined range of the side surface 101 is left is for operability when the jig 100 is used, and the reason why the predetermined range of the side surface 105 is left is to maintain the strength of the jig 100.

図１５は、削り出した後の金属部材ＭをＸＺ面内で１８０度回転させた状態の金属部材Ｍの外観である。側面１０１と同様に、側面１０１に対向する側面１０３の片側（側面１０３に向かって右側。側面１０２に接している側）の半分を斜めに削る。このとき、削り出した後の傾斜面１０３ａが、側面１０３に対して角度θとなるよう側面１０３を削る。このとき、同時に側面１０５も削られる。側面１０５の残された面（斜線部分）が平坦面１０５ｂとなる。角度θの決め方は、上述の側面１０１を削り出したときと同様である。以上が、治具１００の製造方法である。   FIG. 15 is an appearance of the metal member M in a state where the metal member M after being cut is rotated 180 degrees in the XZ plane. Similarly to the side surface 101, half of one side of the side surface 103 facing the side surface 101 (right side toward the side surface 103; the side in contact with the side surface 102) is cut obliquely. At this time, the side surface 103 is cut so that the inclined surface 103 a after cutting is at an angle θ with respect to the side surface 103. At this time, the side surface 105 is also shaved. The remaining surface (shaded portion) of the side surface 105 becomes the flat surface 105b. The method for determining the angle θ is the same as when the side surface 101 is cut out. The above is the manufacturing method of the jig 100.

次に、治具１００を使用して、羽根車１の製造工程で、羽根材４０の凸部４３、４４を、第１面板１０に固定する作業を説明する。以下の作業は、例えば、工場で作業員によって、プレス機等を使用して行われる。   Next, an operation for fixing the convex portions 43 and 44 of the blade member 40 to the first face plate 10 in the manufacturing process of the impeller 1 using the jig 100 will be described. The following operations are performed, for example, by a worker at a factory using a press machine or the like.

まず、図４に示すように、支持材３０のスリット３２に、全ての羽根材４０を差し込む。次に、支持材３０に差し込まれた羽根材４０の凸部４３、４４に、第１面板１０の貫通孔１２を被挿する。よって、図７に示すように、貫通孔１２に挿入された凸部４３、４４が、第１面板１０の上面から突出する。この状態で、図１６に示すように、治具１００を、平坦面１０５ａ、１０５ｂが第１面板１０の板面に対面させ、凸部４３、４４に押し当てる。   First, as shown in FIG. 4, all the blade members 40 are inserted into the slits 32 of the support member 30. Next, the through hole 12 of the first face plate 10 is inserted into the convex portions 43 and 44 of the blade member 40 inserted into the support member 30. Therefore, as shown in FIG. 7, the protrusions 43 and 44 inserted into the through hole 12 protrude from the upper surface of the first face plate 10. In this state, as shown in FIG. 16, the jig 100 is pressed against the convex portions 43 and 44 with the flat surfaces 105 a and 105 b facing the plate surface of the first face plate 10.

凸部４３、４４が折れ曲がる様子を具体的に説明する。図１７（ａ）、（ｂ）に、凸部４３、４４を図１６の−Ｘ方向からから＋Ｘ方向を見た場合に、凸部４３、４４が折れ曲がる様子を模式的に表した図を示す。図１７（ａ）に示すように、治具１００の２つの傾斜面１０１ａ、１０３ａがそれぞれ凸部４３、４４に接するように、治具１００を凸部４３、４４に押しつける。従って、図１７（ｂ）に示すように、凸部４３、４４は治具１００の傾斜面１０１ａ、１０３ａに沿って折れ曲がる。このようにして、凸部４３、４４は互いに反対の方向に折れ曲がる。このとき、平坦面１０５ａ、１０５ｂが第１面板１０に接するまで、治具１００を凸部４３、４４に押しつければよい。   The manner in which the convex portions 43 and 44 are bent will be specifically described. FIGS. 17A and 17B schematically show how the protrusions 43 and 44 are bent when the protrusions 43 and 44 are viewed from the −X direction in FIG. 16 to the + X direction. . As shown in FIG. 17A, the jig 100 is pressed against the convex portions 43 and 44 so that the two inclined surfaces 101a and 103a of the jig 100 are in contact with the convex portions 43 and 44, respectively. Accordingly, as shown in FIG. 17B, the convex portions 43 and 44 bend along the inclined surfaces 101 a and 103 a of the jig 100. Thus, the convex parts 43 and 44 bend in the opposite direction. At this time, the jig 100 may be pressed against the convex portions 43 and 44 until the flat surfaces 105 a and 105 b come into contact with the first face plate 10.

同様に、治具１００を使用して、残りの羽根材４０の凸部４３、４４も折り曲げる。従って、図１８（ａ）に示すように、凸部４３、４４は、互いに反対の方向に折れ曲がった状態となる。その後、図１８（ｂ）に示すように、治具５００を使用したプレス成型で、凸部４３、４４が略直角方向に折り曲げて、凸部４３、４４を第１面板１０の上面に押圧する。このようにして、凸部４３、４４は第１面板１０に固定される。   Similarly, the protrusions 43 and 44 of the remaining blade member 40 are also bent using the jig 100. Therefore, as shown to Fig.18 (a), the convex parts 43 and 44 will be in the state bent in the mutually opposite direction. Thereafter, as shown in FIG. 18B, the convex portions 43 and 44 are bent in a substantially right angle direction by press molding using the jig 500, and the convex portions 43 and 44 are pressed against the upper surface of the first face plate 10. . In this way, the convex portions 43 and 44 are fixed to the first face plate 10.

その後、羽根材４０の凸部４３、４４を、第１面板１０に固定した側を下にして、凸部４５、５６を、第２面板２０に固定するが、その作業は、上述の作業と同様にして行うことで、羽根材４０の凸部４５、４６を第２面板２０に固定できる。   Thereafter, the convex portions 43 and 44 of the blade member 40 are fixed to the second face plate 20 with the side fixed to the first face plate 10 facing down. By carrying out similarly, the convex parts 45 and 46 of the blade member 40 can be fixed to the second face plate 20.

治具１００を使用することで、一組の凸部４３、４４を同時にある程度の角度にまで折り曲げ、羽根材４０の一方の端を第１面板１０に仮固定することができる。凸部４３、４４の第２面板２０への仮固定も同様である。   By using the jig 100, the pair of convex portions 43 and 44 can be bent simultaneously to a certain angle, and one end of the blade member 40 can be temporarily fixed to the first face plate 10. The same applies to the temporary fixing of the convex portions 43 and 44 to the second face plate 20.

また、図１９に示す従来の治具６００を用いて斜めに押潰し加工する（斜めに挿入した治具６００を押し下げる）ことで、均等に力を加えても、凸部４３、４４を捻じ曲げるようにして折り曲げる（凸部４３、４４は、捩れながら折り曲がる）ことから、自ずと、凸部４３、４４が捩れる蓋然性がある。本発明の治具１００を使用した場合には、上下動作のみであり、捩れは発生せず、精度よく羽根材４０を第１面板１０、第２面板２０に固定することができる。さらに、治具１００の側面１０５が、第１面板１０、あるいは第２面板２０の面に接するまで、治具１００を凸部４３、４４に押しつけるだけでよく、作業が容易である。凸部４３、４４の第２面板２０への固定も同様である。   Further, by crushing obliquely using the conventional jig 600 shown in FIG. 19 (pressing down the obliquely inserted jig 600), the convex portions 43 and 44 are twisted and bent even when a force is applied evenly. Thus, since the convex portions 43 and 44 are bent while being twisted, there is a probability that the convex portions 43 and 44 are naturally twisted. When the jig 100 of the present invention is used, only the up and down movement is performed, and no twist is generated, and the blade member 40 can be fixed to the first face plate 10 and the second face plate 20 with high accuracy. Furthermore, it is only necessary to press the jig 100 against the convex portions 43 and 44 until the side surface 105 of the jig 100 comes into contact with the surface of the first face plate 10 or the second face plate 20, and the operation is easy. The same applies to the fixing of the convex portions 43 and 44 to the second face plate 20.

以上、本発明の実施形態について説明したが、本発明は、上記実施形態によって限定されるものではない。   As mentioned above, although embodiment of this invention was described, this invention is not limited by the said embodiment.

本発明は、発明の広義の精神と範囲を逸脱することなく、様々な実施の形態及び変形が可能となる発明であり、かつ上述した実施の形態は、本発明を説明するためのものであり、本発明の範囲を限定するものではない。従って、本発明の範囲は、実施の形態ではなく、特許請求の範囲によって示される。そして、特許請求の範囲内及びそれと同等の発明の意義の範囲内で施される様々な変形が、本発明の範囲内とみなされる。   The present invention is an invention in which various embodiments and modifications can be made without departing from the broad spirit and scope of the invention, and the above-described embodiments are for explaining the present invention. It does not limit the scope of the present invention. Therefore, the scope of the present invention is shown not by the embodiments but by the claims. Various modifications within the scope of the claims and within the scope of the equivalent invention are considered to be within the scope of the present invention.

１ 羽根車
１０ 第１面板
１１ 開口部
１２ 貫通孔
２０ 第２面板
２１ 開口部
２２ 貫通孔
３０ 支持材
３０ａ 外周面
３１ 外周突起部
３２ スリット
３３ 切欠き
３４ａ、３４ｂ 貫通孔
３５、３６ 凸部
３７、３８、３９ 内部壁面
４０ 羽根材
４１ 中心部側切欠き
４２ 外周部側切欠き
４３、４４、４５、４６ 凸部
１００、５００、６００ 治具
１０１、１０２、１０３、１０４ 側面
１０１ａ、１０３ａ 傾斜面（一方傾斜面・他方傾斜面）
１０５ａ、１０５ｂ 平坦面（一方平坦面・他方平坦面）
１０５、１０６ 面
１０７ 窪み部
１０８ クロス位置
Ｍ 金属部材 DESCRIPTION OF SYMBOLS 1 Impeller 10 1st face plate 11 Opening part 12 Through-hole 20 2nd face plate 21 Opening part 22 Through-hole 30 Support material 30a Outer peripheral surface 31 Outer peripheral projection part 32 Slit 33 Notch 34a, 34b Through-hole 35, 36 Convex part 37, 38, 39 Internal wall surface 40 Blade material 41 Center side notch 42 Outer periphery side notch 43, 44, 45, 46 Convex part 100, 500, 600 Jig 101, 102, 103, 104 Side face 101a, 103a Inclined surface ( One inclined surface, the other inclined surface)
105a, 105b Flat surface (one flat surface, the other flat surface)
105, 106 surface 107 depression
108 Cross position M Metal member

Claims (8)

ファンの製造に使用される治具であって、
この治具は、本体部の一方部位に、一方平坦面と、この一方平坦面より、軸方向に傾斜した一方傾斜面とを形成し、また、前記本体部の他方部位に、他方平坦面と、この他方平坦面より、軸方向に傾斜した他方傾斜面とを形成し、
この一方傾斜面と他方傾斜面とを、前記本体部に、クロス形状に配置するとともに、この一方傾斜面と他方傾斜面との交差部は、前記一方平坦面と前記他方平坦面との面位置より軸方向に位置することで、この面位置と交差部との間に窪み部を備える構成であって、
前記ファンの面板に形成された貫通孔に、前記ファンの羽根材の一端に形成された一対の外周突起部が挿入された状態で、前記一方傾斜面は、前記一対の外周突起部の一方を押圧し、前記他方傾斜面は、前記一対の外周突起部の他方を前記一方傾斜面の押圧の方向とは反対の方向に押圧する、
ことを特徴とする治具。 A jig used to manufacture a fan,
This jig forms one flat surface at one part of the main body part and one inclined surface inclined in the axial direction from the one flat surface, and the other flat surface at the other part of the main body part. The other flat surface is formed with the other inclined surface inclined in the axial direction,
The one inclined surface and the other inclined surface are arranged in a cross shape on the main body, and the intersection of the one inclined surface and the other inclined surface is a surface position between the one flat surface and the other flat surface. By being positioned in the more axial direction, it is a configuration comprising a recess between this surface position and the intersection,
In a state where a pair of outer peripheral projections formed at one end of the fan blade material is inserted into a through hole formed in the face plate of the fan, the one inclined surface is formed by inserting one of the pair of outer peripheral projections. The other inclined surface presses the other of the pair of outer peripheral projections in a direction opposite to the direction of pressing the one inclined surface,
A jig characterized by that. 前記一方傾斜面と前記他方傾斜面の傾きは略等しい、
請求項１に記載の治具。 The slopes of the one inclined surface and the other inclined surface are substantially equal.
The jig according to claim 1. 治具を使用してファンを製造する方法であって、
前記治具は、本体部の一方部位に、一方平坦面と、この一方平坦面より、軸方向に傾斜した一方傾斜面とを形成し、また、前記本体部の他方部位に、他方平坦面と、この他方平坦面より、軸方向に傾斜した他方傾斜面とを形成し、
この一方傾斜面と他方傾斜面とを、前記本体部に、クロス形状に配置するとともに、この一方傾斜面と他方傾斜面との交差部は、前記一方平坦面と前記他方平坦面との面位置より軸方向に位置することで、この面位置と交差部との間に窪み部を備える構成であって、
前記ファンの面板に形成された貫通孔に、前記ファンの羽根材の一端に形成された一対の外周突起部を挿入して、前記ファンを組み立てる組み立てステップと、
前記治具の前記一方傾斜面を、前記貫通孔から突出した前記一対の外周突起部の一方に押圧し、前記他方傾斜面を、前記一対の外周突起部の他方に押圧し、前記羽根材を前記面板に固定する第１固定ステップと、
を含む製造方法。 A method of manufacturing a fan using a jig,
The jig forms one flat surface at one part of the main body part and one inclined surface inclined in the axial direction from the one flat surface, and the other flat surface at the other part of the main body part. The other flat surface is formed with the other inclined surface inclined in the axial direction,
The one inclined surface and the other inclined surface are arranged in a cross shape on the main body, and the intersection of the one inclined surface and the other inclined surface is a surface position between the one flat surface and the other flat surface. By being positioned in the more axial direction, it is a configuration comprising a recess between this surface position and the intersection,
An assembly step of assembling the fan by inserting a pair of outer peripheral protrusions formed at one end of the fan blade material into the through-hole formed in the face plate of the fan;
The one inclined surface of the jig is pressed against one of the pair of outer peripheral protrusions protruding from the through hole, the other inclined surface is pressed against the other of the pair of outer peripheral protrusions, and the blade member is A first fixing step for fixing to the face plate;
Manufacturing method. 前記第１固定ステップにおいて、前記一方傾斜面の押圧により、前記一対の外周突起部の一方を前記面板の面に沿って曲げ、前記他方傾斜面の押圧により、前記一対の外周突起部の他方を前記面板の面に沿って且つ前記一対の外周突起部の一方とは逆の方向に曲げる、
請求項３に記載の製造方法。 In the first fixing step, one of the pair of outer peripheral protrusions is bent along the surface of the face plate by pressing the one inclined surface, and the other of the pair of outer peripheral protrusions is pressed by pressing the other inclined surface. Bending along the surface of the face plate and in the opposite direction to one of the pair of outer peripheral projections,
The manufacturing method according to claim 3. 前記第１固定ステップにおいて、前記治具の前記一方傾斜面が、前記面板に当接するまで、前記一方傾斜面で、前記一対の外周突起部の一方に押圧し、前記他方傾斜面で、前記面板に当接するまで、前記他方傾斜面を前記一対の外周突起部の他方に押圧する、
請求項３または４に記載の製造方法。 In the first fixing step, the one inclined surface is pressed against one of the pair of outer peripheral protrusions until the one inclined surface of the jig comes into contact with the face plate, and the other inclined surface presses the face plate. Until the second inclined surface is pressed against the other of the pair of outer peripheral projections,
The manufacturing method of Claim 3 or 4. 前記第１固定ステップにおいて、さらに、前記羽根材の前記一対の外周突起部を前記面板にプレスする、
請求項３から５のいずれか１項に記載の製造方法。 In the first fixing step, the pair of outer peripheral projections of the blade member is further pressed onto the face plate.
The manufacturing method of any one of Claim 3 to 5. 前記組み立てステップにおいて、前記ファンの支持材のスリットに前記羽根材をそれぞれ差し込み、前記面板に形成された貫通孔に、前記一対の外周突起部を挿入する、
請求項３から６のいずれか１項に記載の製造方法。 In the assembly step, each of the blade members is inserted into a slit of a support material of the fan, and the pair of outer peripheral protrusions are inserted into through holes formed in the face plate.
The manufacturing method of any one of Claim 3 to 6. さらに、前記支持材の円周方向に前記スリットと交互に設けられ、前記支持材の外縁から内縁に向かって形成された切欠けと、前記スリットと、の間に形成された外周突起部を塑性変形して、前記スリットに差し込まれた前記羽根材を前記支持材に固定する第２固定ステップ、
を含む請求項７に記載の製造方法。 Further, the outer peripheral protrusions formed between the slits provided alternately with the slits in the circumferential direction of the support material and formed from the outer edge to the inner edge of the support material are plastic. A second fixing step for deforming and fixing the blade member inserted into the slit to the support member;
The manufacturing method of Claim 7 containing these.

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