JP2017530868A5

JP2017530868A5 -

Info

Publication number: JP2017530868A5
Application number: JP2017509772A
Authority: JP
Filing date: 2015-01-06
Publication date: 2018-08-16

Description

（ホイールリムの製造）
（１）コイル状材料を解舒する工程、（２）解舒した材料を平板状にプレスする工程、（３）突き合わせ溶接工程、（４）板材を円筒状に丸める工程、（５）突き合わせ溶接工程、（６）溶接スラグの切削工程、（７）エッジカット工程、（８〜１０）３段階の冷間圧延工程、（１１）拡張およびサイジング工程、および、（１２）弁孔を押し抜く工程が含まれる。 (Manufacture of wheel rims)
(1) a step of unwinding the coiled material, (2) a step of pressing the unraveled material into a flat plate shape, (3) a butt welding step, (4) a step of rolling the plate material into a cylindrical shape, (5) butt welding Process, (6) cutting process of weld slag, (7) edge cutting process, (8-10) cold rolling process of 3 stages, (11) expansion and sizing process, and (12) process of punching out valve hole Is included.

（ホイールディスクの製造）
（１）コイル状材料を解舒する工程、（２）解舒した材料を平板状にプレスする工程、（３）角形素材を形成する工程、（４）プレス成形工程、（５）逆ストレッチ工程、（６）穿孔工程、および、（７）中心孔およびねじ孔を押し出し成型する工程が含まれる。 (Manufacture of wheel discs)
(1) a step of unwinding the coiled material, (2) a step of pressing the unwound material into a flat plate shape, (3) a step of forming a square material, (4) a press forming step, and (5) a reverse stretching step. , (6) a drilling step, and (7) a step of extruding the center hole and the screw hole.

本発明に係る板金製無溶接１ピースホイールの製造方法には、工程１（圧延）の前に、円形素材を形成する工程と、円形素材を圧延金型内に安定的に配置するための位置決め孔を押し抜く工程が含まれる。 In the method for manufacturing a sheet metal non-welded one-piece wheel according to the present invention, before step 1 (rolling), a step of forming a circular material and positioning for stably arranging the circular material in the rolling die A step of punching out the holes is included.

本発明に係る板金製無溶接１ピースホイールの製造方法には、工程３（ロール成形）と工程４（圧縮成形）の間に、ホイール素材に中心孔を押し出し成型する工程が含まれる。 The method for manufacturing a sheet metal non-welded one-piece wheel according to the present invention includes a step of extruding a center hole in a wheel material between step 3 (roll molding) and step 4 (compression molding).

本発明に係る板金製無溶接１ピースホイールの製造方法には、工程３（ロール成形）と工程４（圧縮成形）の間に、ホイール素材にねじ孔を押し出し成型する工程が含まれる。 The method for manufacturing a sheet metal non-welded one-piece wheel according to the present invention includes a step of extruding a screw hole in a wheel material between step 3 (roll molding) and step 4 (compression molding).

本発明に係る板金製無溶接１ピースホイールの製造方法には、工程３（ロール成形）と工程４（圧縮成形）の間に、ホイール素材に空気孔を押し出し成型する工程が含まれる。 The manufacturing method of the sheet metal non-welded one-piece wheel according to the present invention includes a step of extruding an air hole in the wheel material between Step 3 (roll forming) and Step 4 (compression molding).

本発明に係る板金製無溶接１ピースホイールの製造方法には、工程４（圧縮成形）の後に、ホイール素材に弁孔を押し抜く工程５が含まれる。 The method for manufacturing a non-welded one-piece wheel made of sheet metal according to the present invention includes a step 5 of punching out valve holes in the wheel material after the step 4 (compression molding).

上述の中心孔、ねじ孔、空気孔、位置決め孔および弁孔を押し出し成型する工程は、従来の板金製ホイールと同様の方法で行われる。そのため、これらの工程については、説明を省略する。 The process of extruding the above-described center hole, screw hole, air hole, positioning hole and valve hole is performed by the same method as a conventional sheet metal wheel. Therefore, description of these steps is omitted.

図１は、従来技術に係る板金製ホイールの構造を示す。FIG. 1 shows the structure of a sheet metal wheel according to the prior art. 図２は、本発明の一実施形態に係る板金製無溶接１ピースホイールの製造方法の流れ図を示す。FIG. 2 is a flowchart of a method for manufacturing a sheet metal non-welded one-piece wheel according to an embodiment of the present invention. 図３は、円形素材を形成する工程を示す。FIG. 3 shows a process of forming a circular material. 図４は、中心孔を穿設する工程を示す。FIG. 4 shows a process of drilling the center hole. 図５は、圧延工程を示す。FIG. 5 shows the rolling process. 図６は、リム部およびディスク部の成形工程を示す。FIG. 6 shows a molding process of the rim part and the disk part. 図７は、ロール成形工程の第１段階を示す。FIG. 7 shows the first stage of the roll forming process. 図８は、ロール成形工程の第２段階を示す。FIG. 8 shows the second stage of the roll forming process. 図９は、ロール成形工程の第３段階を示す。FIG. 9 shows the third stage of the roll forming process. 図１０は、中心孔を押し出し成型する工程を示す。FIG. 10 shows the process of extruding the center hole. 図１１は、ねじ孔を押し出し成型する工程を示す。FIG. 11 shows a process of extruding a screw hole. 図１２は、空気孔を押し出し成型する工程を示す。FIG. 12 shows the process of extruding the air holes. 図１３は、圧縮成形工程を示す。FIG. 13 shows the compression molding process. 図１４は、弁孔を押し出し成型工程を示す。FIG. 14 shows a process for extruding a valve hole. 図１５は、縦型冷間圧延ロール成形機を示す。FIG. 15 shows a vertical cold rolling roll forming machine. 図１６は、本発明に係る板金製無溶接１ピースホイールの構造を示す。FIG. 16 shows the structure of a sheet metal unwelded one-piece wheel according to the present invention.

（工程２）
円形素材１に中心孔２を押し抜く（図４参照）。 (Process 2)
The center hole 2 is pushed through the circular material 1 (see FIG. 4).

（工程８）
ホイール素材に中心孔１３を押し出し成型する（図１０参照）。 (Process 8)
The center hole 13 is extruded and formed in the wheel material (see FIG. 10).

（工程９）
ホイール素材にねじ孔１４を押し出し成型する（図１１参照）。 (Step 9)
Screw holes 14 are extruded and formed in the wheel material (see FIG. 11).

（工程１０）
ホイール素材に空気孔１５を押し出し成型する（図１２参照）。 (Process 10)
The air holes 15 are extruded and formed in the wheel material (see FIG. 12).

（工程１２）
上記圧縮成形されたホイール素材に弁孔を押し抜く（図１４参照）。 (Step 12)
A valve hole is pushed through the compression-molded wheel material (see FIG. 14).

Claims

A method of manufacturing a non-welded one-piece wheel made of sheet metal,
A circular material is arranged in a circular rolling die, and a wheel material is formed by performing plane synchronous rolling on the circular material using at least two rolling wheels arranged symmetrically in the circumferential direction of the rolling die. Rolling process;
Forming a rim portion and a disc portion by applying axial pressure to the wheel material using a concave press die and a convex press die; and
After the wheel material is placed between a concave roll molding die and a convex roll molding die and pressed in the axial direction, the concave roll molding die and the convex roll molding die are rotated synchronously around the axis. A roll forming step of further forming the rim portion by pressing the rim portion in the radial direction using one or a plurality of side press rollers rotating around an axis,
A compression molding step of pressing the rim portion in a radial direction using a lateral press mold while the wheel material is disposed between the concave mold and the convex mold and clamped in the axial direction. A method characterized by that.

The method according to claim 1, further comprising: forming the circular material before the rolling step; and pressing a positioning hole in the circular material.

The method according to claim 1, further comprising a step of extruding a center hole in the wheel material between the roll forming step and the compression forming step.

The method according to claim 1, further comprising a step of extruding a screw hole in the wheel material between the roll forming step and the compression forming step.

The method according to claim 1, further comprising a step of extruding an air hole in the wheel material between the roll forming step and the compression forming step.

After the compression molding step, the method according to claim 1, characterized in that it comprises a step of punched the valve hole in the wheel material.

The method according to claim 1, wherein the rolling wheel motion in the rolling process includes a rotational motion and a horizontal feed motion.

In the roll forming step, in order to form the rim portion with high accuracy, the rim portion is pressed in the radial direction using the three side press rollers arranged uniformly in the circumferential direction of the wheel material. The method of claim 1, characterized in that:

The sheet-metal-free welded one piece wheel The method of claim 1, wherein the that consists of carbon steel, aluminum, Mg-Al alloy, or stainless steel.