JP2019051554A - Semi-solidified forging molding device for multi molding - Google Patents
Semi-solidified forging molding device for multi molding Download PDFInfo
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- JP2019051554A JP2019051554A JP2017208845A JP2017208845A JP2019051554A JP 2019051554 A JP2019051554 A JP 2019051554A JP 2017208845 A JP2017208845 A JP 2017208845A JP 2017208845 A JP2017208845 A JP 2017208845A JP 2019051554 A JP2019051554 A JP 2019051554A
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- 238000000465 moulding Methods 0.000 title claims abstract description 36
- 238000005242 forging Methods 0.000 title claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 claims abstract description 71
- 239000002184 metal Substances 0.000 claims abstract description 71
- 239000007787 solid Substances 0.000 claims description 41
- 230000008878 coupling Effects 0.000 claims description 27
- 238000010168 coupling process Methods 0.000 claims description 27
- 238000005859 coupling reaction Methods 0.000 claims description 27
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000704 physical effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 20
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 238000003860 storage Methods 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/04—Handling or stripping castings or ingots
- B22D29/08—Strippers actuated mechanically
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
本発明は、マルチ成形用半凝固鍛造成形装置に係り、特に、マルチ成形の際に、複数のキャビティに対して溶湯の定量制御が可能であり、定圧を維持することができるため、物性に優れた製品を成形することができる、マルチ成形用半凝固鍛造成形装置に関する。 The present invention relates to a semi-solid forging apparatus for multi-molding, and in particular, in multi-molding, the molten metal can be quantitatively controlled for a plurality of cavities, and can maintain a constant pressure, so that it has excellent physical properties. The present invention relates to a semi-solid forging and forming apparatus for multi-molding that can form a product.
一般に、商用車は、商用として用いられる車両であって、ほとんどが大型トラック、バスなどの大型車である。 In general, commercial vehicles are vehicles used for commercial purposes, and most are large vehicles such as large trucks and buses.
このような車両のリアアクスル軸の両端部には、アクスル軸からインナーベアリングが内周面に案内され、その外側には車輪との結合のためのホイールハブドラムに結合されるホイールハブが設置される。 At both ends of the rear axle shaft of such a vehicle, an inner bearing is guided from the axle shaft to the inner peripheral surface, and a wheel hub that is coupled to a wheel hub drum for coupling with a wheel is installed on the outer side. The
前記ホイールハブは、内周面を有する円筒状のボディの一側には、前記ホイールハブドラムに連結されるために多数の連結孔が設けられたフランジ部が設けられる。 The wheel hub is provided with a flange portion provided with a plurality of connection holes to be connected to the wheel hub drum on one side of a cylindrical body having an inner peripheral surface.
前記ホイールハブの内周面には上部および下部傾斜部が形成されてインナーベアリングが装着され、ここで、インナーベアリングは、アクスル軸の外周面に結合され、車輪、ホイールハブドラムを含めて車両の走行に伴って回転が行われるのである。 Upper and lower inclined portions are formed on the inner peripheral surface of the wheel hub, and an inner bearing is mounted. The inner bearing is coupled to the outer peripheral surface of the axle shaft, and includes a wheel and a wheel hub drum. The rotation is performed as the vehicle travels.
従来のホイールハブは、鋳鉄材の製品が主に使用されたが、時代的、環境的要求に応えるためにその材質がアルミニウム材に変更されており、鋳鉄材の場合には、鋳造工法を採用しても良いが、アルミニウムの場合には、一般鋳造時の欠陥などによる材質特性の著しい低下により、高圧成形工法である溶湯鍛造工法の成形が主に行われる。 Conventional wheel hubs are mainly cast iron products, but the material has been changed to aluminum to meet the historical and environmental demands. In the case of cast iron materials, the casting method is adopted. However, in the case of aluminum, molding of the molten metal forging method, which is a high pressure molding method, is mainly performed due to a significant deterioration in material properties due to defects during general casting.
このような商用車ホイールのハブを成形する溶湯鍛造成形は、溶湯状態の溶融金属を鍛造金型のキャビティに注入した後、加圧および冷却させることにより、鍛造金型のキャビティに相当する商用車ホイールのハブを作り出す成形方法であって、成形が完了したら、イジェクタ手段を用いて商用車ホイールのハブを金型から押し出して脱型させることにより、最終的に成形物を得ることになる。 The molten metal forging molding for forming the hub of such a commercial vehicle wheel is a commercial vehicle corresponding to a cavity of a forging die by injecting molten metal in a molten state into the cavity of the forging die and then pressurizing and cooling the molten metal. A molding method for producing a wheel hub. When molding is completed, the hub of the commercial vehicle wheel is pushed out of the mold by using the ejector means, and the molded product is finally obtained.
溶湯鍛造工法による商用車ホイールのハブの製造について、特許文献１が提案されている。 Patent document 1 is proposed about manufacture of the hub of a commercial vehicle wheel by a molten metal forging method.
特許文献１は、商用車ホイールのハブ用溶湯鍛造金型に関するものであって、上部金型にリング状のイジェクタリングを形成して上部金型と外部との隙間面積を増加させることにより、成形の際に生成されるガスの排出をスムーズにして不良品の発生を抑制し、下部金型の一部を昇降可能にして離型剤の排出を容易にすることができるという利点がある。 Patent Document 1 relates to a molten metal forging die for a hub of a commercial vehicle wheel, which is formed by forming a ring-shaped ejector ring in the upper die and increasing the clearance area between the upper die and the outside. There is an advantage that the gas generated at this time can be smoothly discharged to suppress the generation of defective products, and a part of the lower mold can be raised and lowered to facilitate the release of the release agent.
ところが、前記特許文献１の場合は、ホイールのハブを１つずつ個別生産するばかりで、一度にマルチ生産することはできないため、ホイールのハブの生産性が低下するという問題点があるのはもとより、下部金型に溶湯を定量注入することができないだけでなく、前記下部金型に注入された溶湯を定圧で加圧することができないため、製造されたホイールのハブに不良率が増加するという問題点がある。 However, in the case of the above-mentioned Patent Document 1, there is a problem that the productivity of the wheel hub is reduced because the wheel hubs are individually produced one by one and cannot be multi-produced at a time. In addition to not being able to inject the molten metal into the lower mold in a fixed amount, it is not possible to pressurize the molten metal injected into the lower mold at a constant pressure, which increases the defective rate of the manufactured wheel hub. There is a point.
本発明は、かかる従来の問題点を解決するためになされたもので、その目的は、物性に優れた製品を半凝固鍛造方法によってマルチ成形が可能なマルチ成形用半凝固鍛造成形装置を提供することにある。 The present invention has been made to solve such conventional problems, and an object thereof is to provide a semi-solid forging apparatus for multi-molding capable of multi-molding a product having excellent physical properties by a semi-solid forging method. There is.
上記の目的を達成するための本発明は、上部面に一定量の溶湯が充填され、一定の間隔で複数形成される複数のキャビティと、前記複数のキャビティのうち、隣接するキャビティの間の上部面に形成され、前記複数のキャビティに充填された溶湯の充填量を定量制御する水平溝とを含む下部金型；前記下部金型との合型の際に、前記複数のキャビティ内に充填された溶湯を加圧する複数のパンチ部と、前記下部金型との合型の際に、前記水平溝内に充填された溶湯を加圧するように、下部面における、前記下部金型の水平溝に対応する位置に形成される加圧突出部とを含む上部金型；及び前記上部金型を昇降させるメインシリンダー；を含んでなることを特徴とする、マルチ成形用半凝固鍛造成形装置を提供する。 In order to achieve the above object, the present invention provides a plurality of cavities in which a certain amount of molten metal is filled in an upper surface and formed at regular intervals, and an upper portion between adjacent cavities among the plurality of cavities. A lower mold including a horizontal groove formed on a surface and configured to quantitatively control a filling amount of the molten metal filled in the plurality of cavities; and when the mold is combined with the lower mold, the plurality of cavities are filled. In the horizontal groove of the lower mold on the lower surface so as to pressurize the molten metal filled in the horizontal groove when the plurality of punch portions for pressurizing the molten metal and the lower mold are combined. A semi-solid forging apparatus for multi-molding, comprising: an upper mold including a pressure protrusion formed at a corresponding position; and a main cylinder for raising and lowering the upper mold. .
ここで、前記下部金型の水平溝の底面の高さは、前記キャビティに注入する溶湯の高さよりも低いことが好ましい。 Here, the height of the bottom surface of the horizontal groove of the lower mold is preferably lower than the height of the molten metal poured into the cavity.
また、前記下部金型と前記上部金型との合型の際に、前記水平溝の底面と前記加圧突出部の底面との高さ差は、半凝固鍛造成形品の垂直方向の最小厚さと同一に形成されることが好ましい。 Further, when the lower mold and the upper mold are combined, the difference in height between the bottom surface of the horizontal groove and the bottom surface of the pressure protrusion is the minimum thickness in the vertical direction of the semi-solid forged product. It is preferable to form the same.
さらに、前記半凝固鍛造成形品は、ホイールハブからなることが好ましい。 Furthermore, it is preferable that the semi-solid forged molded product comprises a wheel hub.
また、前記下部金型に、コアボディと、前記コアボディの下部に突設されるロッド結合部とから構成された下部コアが備えられ、前記下部金型は、中央に前記下部コアのコアボディが収容される収容溝と、前記収容溝の底面の中央に穿設され、前記下部コアのロッド結合部が貫通する貫通孔とが備えられる下部プレートと；前記下部プレートの上部に固定設置され、前記キャビティが形成される下部サイド金型と；を含むことが好ましい。 Further, the lower mold is provided with a lower core composed of a core body and a rod coupling portion protruding from the lower portion of the core body, and the lower mold accommodates the core body of the lower core in the center. A lower plate provided with a receiving groove and a through-hole drilled in the center of the bottom surface of the receiving groove and through which the rod coupling portion of the lower core passes; and fixedly installed on the upper portion of the lower plate, And a lower side mold to be formed.
また、前記下部コアのロッド結合部を昇降させる下部コアシリンダーが前記下部プレートの下部に配置されることが好ましい。 In addition, it is preferable that a lower core cylinder for raising and lowering the rod coupling portion of the lower core is disposed under the lower plate.
また、前記下部コアのロッド結合部を下側へ弾性支持する弾性部材が備えられることが好ましい。 Moreover, it is preferable that an elastic member for elastically supporting the rod coupling portion of the lower core downward is provided.
また、前記半凝固鍛造成形品を成すホイールハブのフランジ部の上部面に対応する前記上部金型の成形面に上下に貫通する貫通口が複数設けられ、複数の前記貫通口内にそれぞれ配置される複数のイジェクトピンと；複数の前記イジェクトピンを昇降させるイジェクトシリンダーと；が備えられることが好ましい。 In addition, a plurality of through-holes penetrating vertically are provided on the molding surface of the upper mold corresponding to the upper surface of the flange portion of the wheel hub forming the semi-solid forged molded product, and are respectively disposed in the plurality of through-holes. It is preferable that a plurality of eject pins are provided; and an eject cylinder that raises and lowers the plurality of eject pins.
また、複数の前記イジェクトピンを上側へ弾性支持する弾性部材が備えられることが好ましい。 It is preferable that an elastic member for elastically supporting the plurality of eject pins upward is provided.
本発明は、マルチ成形の際に複数のキャビティに対して溶湯の定量制御が可能であり、定圧を維持することができるため、物性に優れた製品を成形することができるという効果がある。 According to the present invention, the molten metal can be quantitatively controlled with respect to a plurality of cavities at the time of multi-molding, and a constant pressure can be maintained.
以下、本発明の好適な実施例を添付図面に基づいてより詳細に説明する。もちろん、本発明の権利範囲は下記の実施例に限定されるものではなく、本発明は、本発明の技術的要旨を逸脱することなく、当該技術分野における通常の知識を有する者によって多様に変形実施できる。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Of course, the scope of rights of the present invention is not limited to the following examples, and the present invention can be variously modified by those having ordinary knowledge in the technical field without departing from the technical gist of the present invention. Can be implemented.
図１は本発明の一実施例に係るマルチ成形用半凝固鍛造成形装置を概略的に示す縦断面図である。 FIG. 1 is a longitudinal sectional view schematically showing a multi-forming semi-solid forging apparatus according to an embodiment of the present invention.
本発明の一実施例に係るマルチ成形用半凝固鍛造成形装置は、中空（図１２の７１０）が形成されたホイール結合部（図１２の７１）と；前記ホイール結合部７１の上端部の外周面に形成されるフランジ部（図１２の７２）と；前記フランジ部７２の上端部に一体に形成され、中空（図１７の７３１）が形成されたディスク結合部（図１２の７３）と；から構成されるホイールハブなどを含んでなる半凝固鍛造成形品７を溶湯鍛造の方法で成形するためのものである。 A semi-solid forging apparatus for multi-forming according to an embodiment of the present invention includes a wheel coupling portion (71 in FIG. 12) in which a hollow (710 in FIG. 12) is formed; and an outer periphery of an upper end portion of the wheel coupling portion 71 A flange portion (72 in FIG. 12) formed on the surface; and a disk coupling portion (73 in FIG. 12) formed integrally with the upper end portion of the flange portion 72 and having a hollow (731 in FIG. 17); A semi-solid forged molded product 7 including a wheel hub composed of the following is formed by a molten metal forging method.
このような本発明のマルチ成形用半凝固鍛造成形装置は、図１に示すように、大きく下部金型１０、上部金型３０、及びメインシリンダー（図示せず）を含んで構成される。 Such a semi-solid forging and forming apparatus for multi-molding according to the present invention includes a lower mold 10, an upper mold 30, and a main cylinder (not shown) as shown in FIG.
まず、前記下部金型１０には、前記半凝固鍛造成形品７を成すことができるホイールハブの下部形状に対応し、上側に開放されるキャビティ１１０が備えられる。 First, the lower mold 10 is provided with a cavity 110 corresponding to the lower shape of the wheel hub capable of forming the semi-solid forged molded product 7 and opened upward.
前記キャビティ１１０は、半凝固鍛造成形品を向上させるために、前記半凝固鍛造成形品７を成すことができるホイールハブのホイール結合部７１の側面及び底面と前記フランジ部７２の底面及び側面に対応する形状からなることが好ましい。 The cavity 110 corresponds to the side surface and bottom surface of the wheel coupling portion 71 of the wheel hub and the bottom surface and side surface of the flange portion 72 that can form the semi-solid forged molded product 7 in order to improve the semi-solid forged molded product. It is preferable that it consists of a shape to do.
また、前記下部コア２０は、前記ホイール結合部７１の中空７１０の形状に対応する形状に形成され、前記キャビティ１１０の中央部に配置される。 In addition, the lower core 20 is formed in a shape corresponding to the shape of the hollow 710 of the wheel coupling portion 71 and is disposed in the center of the cavity 110.
図２は上部金型を概略的に示す底面図である。 FIG. 2 is a bottom view schematically showing the upper mold.
次に、前記上部金型３０は、前記半凝固鍛造成形品７を成すことができるホイールハブの上部形状に対応し、下側に開放されるキャビティ３１０が備えられ、前記下部金型１０と合型される。 Next, the upper mold 30 is provided with a cavity 310 corresponding to the upper shape of the wheel hub that can form the semi-solid forged molded product 7, and is opened to the lower side. Typed.
具体的に、前記キャビティ３１０は、前記半凝固鍛造成形品７を成すことができるホイールハブ７のフランジ部７２の上部面とディスク結合部７３の外面に対応する形状からなる。 Specifically, the cavity 310 has a shape corresponding to the upper surface of the flange portion 72 of the wheel hub 7 and the outer surface of the disk coupling portion 73 that can form the semi-solid forged product 7.
前記キャビティ３１０の中央部には、前記下部金型１０のキャビティ１１０内に充填された溶湯を加圧するパンチ部４０が形成される。 A punch portion 40 that pressurizes the molten metal filled in the cavity 110 of the lower mold 10 is formed at the center of the cavity 310.
前記パンチ部４０は、前記半凝固鍛造成形品７を成すことができるホイールハブのディスク結合部７３の中空７３１の形状に対応する形状からなる。 The punch portion 40 has a shape corresponding to the shape of the hollow 731 of the disc coupling portion 73 of the wheel hub that can form the semi-solid forged product 7.
特に、前記半凝固鍛造成形品７を成すことができるホイールハブを一度にマルチ成形するために、図１に示すように、前記下部金型１０には、前記キャビティ１１０および前記下部コア２０が一定の間隔で複数形成され、前記上部金型３０には、前記キャビティ１１０に対応するように一定の間隔で前記パンチ部４０が複数形成され得る。 In particular, in order to multi-mold a wheel hub capable of forming the semi-solid forged molded product 7 at a time, the cavity 110 and the lower core 20 are fixed in the lower mold 10 as shown in FIG. A plurality of punch portions 40 may be formed in the upper mold 30 at regular intervals so as to correspond to the cavities 110.
前記下部金型１０の複数のキャビティ１１０のうち、隣接するキャビティ１１０の間の上部面に、複数のキャビティ１１０を連結しながら複数のキャビティ１１０に充填された溶湯の充填量を定量制御する水平溝１２０が形成される。 A horizontal groove for quantitatively controlling the filling amount of the molten metal filled in the plurality of cavities 110 while connecting the plurality of cavities 110 to the upper surface between adjacent cavities 110 among the plurality of cavities 110 of the lower mold 10. 120 is formed.
また、前記下部金型１０と前記上部金型３０との合型の際に、前記水平溝１２０内に充填された溶湯を加圧するように、前記上部金型３０の下部面における、前記下部金型１０の水平溝１２０に対応する位置には、図２に示すように、前記上部金型３０の下方に突出して前記水平溝１２０内に挿入される加圧突出部３０１が形成される。 Further, when the lower mold 10 and the upper mold 30 are combined, the lower mold on the lower surface of the upper mold 30 is pressurized so as to pressurize the molten metal filled in the horizontal groove 120. At a position corresponding to the horizontal groove 120 of the mold 10, as shown in FIG. 2, a pressure protrusion 301 is formed that protrudes below the upper mold 30 and is inserted into the horizontal groove 120.
図３及び図４は下部金型に溶湯が充填される過程を概略的に示す縦断面図である。 3 and 4 are longitudinal sectional views schematically showing the process of filling the lower mold with the molten metal.
図３及び図４に示すように、前記下部金型１０のキャビティ１１０内には、溶湯注入部６０によって溶湯５が注入および充填できる。 As shown in FIGS. 3 and 4, the molten metal 5 can be injected and filled into the cavity 110 of the lower mold 10 by the molten metal injection portion 60.
ここで、前記下部金型１０の水平溝１２０の底面の高さＨ１は、図４に示すように、前記キャビティ１１０に注入される溶湯５の高さＨ２よりも低い方が良い。 Here, the height H 1 of the bottom surface of the horizontal groove 120 of the lower mold 10 is preferably lower than the height H 2 of the molten metal 5 injected into the cavity 110 as shown in FIG.
前記水平溝１２０の底面の高さＨ１を、前記キャビティ１１０に注入される溶湯５の高さＨ２よりも低くすることにより、前記下部金型１０に形成された複数のキャビティ１１０に定量の溶湯５を充填することができ、前記水平溝１２０によって前記上部金型３０が一定の圧力で加圧および合型されるときに圧力が複数のキャビティ１１０に等しく分散されるなど、定圧で半凝固鍛造成形することができるという利点がある。 By making the height H 1 of the bottom surface of the horizontal groove 120 lower than the height H 2 of the molten metal 5 injected into the cavity 110, a fixed amount can be obtained in the plurality of cavities 110 formed in the lower mold 10. The molten metal 5 can be filled, and when the upper mold 30 is pressurized and molded at a constant pressure by the horizontal groove 120, the pressure is evenly distributed to the plurality of cavities 110, and so on. There is an advantage that it can be forged.
前記上部金型３０と前記下部金型１０との合型の際に、前記水平溝１２０の底面と前記加圧突出部３０１の底面との高さ差（図８のＨ３）は、半凝固鍛造成形製品７を成すことができるホイールハブの垂直方向の最小厚さ、例えば、半凝固鍛造成形品７を成すことができるホイールハブのフランジ部７２の上下厚さと同一に形成されるのがよい。 When the upper mold 30 and the lower mold 10 are combined, the height difference (H 3 in FIG. 8) between the bottom surface of the horizontal groove 120 and the bottom surface of the pressure protrusion 301 is semi-solidified. It is preferable that the wheel hub has a minimum vertical thickness that can form the forged product 7, for example, the upper and lower thicknesses of the flange portion 72 of the wheel hub that can form the semi-solid forged product 7. .
これは、前記上部金型３０が前記下部金型１０に一定の圧力で加える圧力が均一に複数のキャビティ１１０内の溶湯５に作用し、前記キャビティ１１０に充填された溶湯５よりも前記水平溝１２０に充填された溶湯５に大きな圧力が加わることを防止するためである。 This is because the pressure applied by the upper mold 30 to the lower mold 10 at a constant pressure uniformly acts on the molten metal 5 in the plurality of cavities 110, and the horizontal groove is more than the molten metal 5 filled in the cavities 110. This is to prevent a large pressure from being applied to the molten metal 5 filled in 120.
一方、前記溶湯注入部６０は、大きく、内部に一定の高さの溶湯５が供給される溶湯貯蔵ボディ６１０と；前記溶湯貯蔵ボディ６１０に連通した状態で前記溶湯貯蔵ボディ６１０の下部に一定の間隔で複数備えられ、前記下部金型１０のキャビティ１１０内に溶湯５を注入する溶湯注入用ライザーチューブなどの様々な種類からなる溶湯注入部材６２０と；を含んで構成できる。 On the other hand, the molten metal injection part 60 is large and has a molten metal storage body 610 to which a molten metal 5 having a constant height is supplied, and is fixed to the lower part of the molten metal storage body 610 in communication with the molten metal storage body 610. And a plurality of molten metal injection members 620 such as a molten metal injection riser tube for injecting the molten metal 5 into the cavity 110 of the lower mold 10.
前記溶湯注入部６０は、公知の移送手段（図示せず）によって前記下部金型１０のキャビティ１１０の上方に移送できる。 The molten metal injection part 60 can be transferred above the cavity 110 of the lower mold 10 by a known transfer means (not shown).
図５は溶湯注入部を概略的に示す平面図である。 FIG. 5 is a plan view schematically showing the molten metal injection portion.
前記溶湯貯蔵ボディ６１０は、図５に示すように、大きく、前記下部金型１０の一側から他側方向へ一定の長さで左右に延設され、下部に前記溶湯注入部材６２０が一定の間隔で備えられる前側溶湯貯蔵ボディ６１１と；前記前側溶湯貯蔵ボディ６１１に連通した状態で前記前側溶湯貯蔵ボディ６１１の後側に、前記前側溶湯貯蔵ボディ６１１の前側から後側方向へ一定の長さで前後に延設される後側溶湯貯蔵ボディ６１２と；から構成できる。 As shown in FIG. 5, the molten metal storage body 610 is large and extends from one side of the lower mold 10 to the other side in a fixed length to the left and right, and the molten metal injection member 620 is fixed at the lower part. A front molten metal storage body 611 provided at intervals; a fixed length from the front side of the front molten metal storage body 611 to the rear side of the front molten metal storage body 611 in communication with the front molten metal storage body 611 And a rear molten metal storage body 612 extending forward and backward.
図６は、溶湯注入部にフィルター部材が備えられた状態を概略的に示す縦断面図である。 FIG. 6 is a longitudinal sectional view schematically showing a state in which a filter member is provided in the molten metal injection portion.
前記溶湯注入部材６２０の下部内側には、図６に示すように、溶湯の注入の際に溶落現象による酸化物の発生及びその製品内の混入を防止するとともに、複数の前記キャビティ１１０内に溶湯５が均等に注入できるようにするためのセラミックフィルターなどからなるフィルター部材６３０が備えられてもよい。 As shown in FIG. 6, the molten metal injection member 620 has an inner portion of the plurality of cavities 110 that prevents generation of oxides due to a melting phenomenon and mixing of the molten metal into the product. A filter member 630 made of a ceramic filter or the like for allowing the molten metal 5 to be poured evenly may be provided.
図７及び図８は下部金型と上部金型との合型過程を概略的に示す縦断面図である。 7 and 8 are longitudinal sectional views schematically showing a process of combining the lower mold and the upper mold.
次に、前記下部コア２０は、前記下部金型１０のキャビティ１１０内で昇降可能に設置できる。 Next, the lower core 20 can be installed in the cavity 110 of the lower mold 10 so as to be movable up and down.
前記下部コア２０は、図７及び図８に示すように、半凝固鍛造成形品７を成すことができるホイールハブのホイール結合部７１の中空７１０の形状に対応する形状からなるコアボディ２１０と；前記コアボディ２１０の下部に突設されるロッド結合部２２０と；から構成できる。 As shown in FIGS. 7 and 8, the lower core 20 has a core body 210 having a shape corresponding to the shape of the hollow 710 of the wheel coupling portion 71 of the wheel hub that can form the semi-solid forged product 7; A rod coupling portion 220 projecting from the lower portion of the core body 210.
前記下部コア２０のロッド結合部２２０は、前記ロッド結合部２２０の下部に連結された状態で前記ロッド結合部２２０の下方に位置する下部コアシリンダー２３０により昇降できる。 The rod coupling part 220 of the lower core 20 can be moved up and down by a lower core cylinder 230 positioned below the rod coupling part 220 while being connected to the lower part of the rod coupling part 220.
前記下部金型１０は、中央に貫通孔１３１が穿設される収容溝１３２が備えられる下部プレート１３０と；前記下部プレート１３０の上部に固定設置され、前記半凝固鍛造成形品７を成すことができるホイールハブの下部側面の形状に対応するキャビティ１１０が形成される下部サイド金型１４０と；を含んで構成できる。 The lower mold 10 includes a lower plate 130 provided with a receiving groove 132 having a through hole 131 formed in the center thereof; and fixedly installed on the upper portion of the lower plate 130 to form the semi-solid forged molded product 7. And a lower side mold 140 in which a cavity 110 corresponding to the shape of the lower side surface of the wheel hub can be formed.
前記下部プレート１３０の収容溝１３２には、前記下部コア２０のコアボディ２１０が収容できる。 The core body 210 of the lower core 20 can be received in the receiving groove 132 of the lower plate 130.
前記収容溝１３２の中央に穿設された貫通孔１３１には、前記コアボディ２１０の下部に突設されるロッド結合部２２０が貫通するように配置できる。 The rod coupling part 220 protruding from the lower part of the core body 210 can be disposed in the through hole 131 formed in the center of the receiving groove 132.
前記下部プレート１３０の貫通孔を貫通するように配置される前記下部コア２０のロッド結合部２２０には、前記下部コアシリンダー２３０のピストンロッド２３１が直接または間接的に結合される。よって、前記下部コアシリンダー２３０の作動により、前記下部コア２０は昇降できる。 The piston rod 231 of the lower core cylinder 230 is directly or indirectly coupled to the rod coupling portion 220 of the lower core 20 disposed so as to penetrate the through hole of the lower plate 130. Therefore, the lower core 20 can be moved up and down by the operation of the lower core cylinder 230.
前記下部金型１０のキャビティ１１０に溶湯５が注入されるときに、前記下部コア２０の底面を前記下部プレート１３０の収容溝１３２に密着させるために、前記下部コア２０のロッド結合部２２０を下側へ弾性支持する圧縮ばねなどの弾性部材１５０；が備えられるのが良い。 When the molten metal 5 is poured into the cavity 110 of the lower mold 10, the rod coupling portion 220 of the lower core 20 is moved downward to bring the bottom surface of the lower core 20 into close contact with the receiving groove 132 of the lower plate 130. An elastic member 150 such as a compression spring that elastically supports the side may be provided.
一例として、図７及び図８に示すように、前記下部コアシリンダー２３０のピストンロッド２３１の上部には、水平状態の昇降板１６０がボルト固定などの様々な方式で固定できる。 As an example, as shown in FIGS. 7 and 8, a horizontal lifting plate 160 can be fixed to the upper portion of the piston rod 231 of the lower core cylinder 230 by various methods such as bolt fixing.
前記昇降板１６０の上部には、一定の間隔で複数の前記ロッド結合部２２０の下部がボルト固定などの様々な方式で固定できる。 The lower part of the plurality of rod coupling parts 220 can be fixed to the upper part of the lifting plate 160 at various intervals by various methods such as bolt fixing.
前記弾性部材１５０の内側に前記ロッド結合部２２０が収容された状態で、前記弾性部材１５０の上部は前記ロッド結合部２２０の外面に一体に連結でき、前記弾性部材１５０の下部は前記昇降板６０の上部に一体に連結できる。 In a state where the rod coupling part 220 is accommodated inside the elastic member 150, the upper part of the elastic member 150 can be integrally connected to the outer surface of the rod coupling part 220, and the lower part of the elastic member 150 is the lifting plate 60. Can be connected to the top of the unit.
図９及び図１０は、下部金型と上部金型との合型状態が解除される過程、および上部金型からホイールハブが分離される過程を概略的に示す縦断面図である。 9 and 10 are longitudinal sectional views schematically showing a process of releasing the combined state of the lower mold and the upper mold and a process of separating the wheel hub from the upper mold.
次に、前記メインシリンダ（図示せず）は、前記上部金型３０の上方に備えられ、図８及び図９において、前記上部金型３０を昇降させることができる。 Next, the main cylinder (not shown) is provided above the upper mold 30, and the upper mold 30 can be raised and lowered in FIGS. 8 and 9.
図９及び図１０に示すように、前記上部金型３０には、前記キャビティ３１０内に下降して半凝固鍛造成形されたホイールハブなどからなる半凝固鍛造成形品７を分離するためのイジェクトピン７０が備えられてもよい。 As shown in FIGS. 9 and 10, the upper die 30 has an eject pin for separating a semi-solid forged product 7 including a wheel hub that is lowered into the cavity 310 and is semi-solid forged. 70 may be provided.
一例として、前記上部金型３０のキャビティ３１０のうち、前記半凝固鍛造成形品７を成すことができるホイールハブのフランジ部７２の上部面と対応する成形面に、上下に貫通する貫通口３１１が複数形成できる。 As an example, in the cavity 310 of the upper mold 30, a through-hole 311 penetrating vertically is formed on the molding surface corresponding to the upper surface of the flange portion 72 of the wheel hub capable of forming the semi-solid forged molded product 7. A plurality can be formed.
前記複数の貫通口３１１内に複数の前記イジェクトピン７０がそれぞれ垂直に配置できる。 A plurality of the eject pins 70 can be arranged vertically in the plurality of through holes 311.
一例として、複数の前記イジェクトピン７０の上部には、複数の前記イジェクトピン７０同士を連結するための連結板８０が備えられてもよい。 As an example, a connection plate 80 for connecting the plurality of eject pins 70 to each other may be provided above the plurality of eject pins 70.
前記連結板８０の上部中心部には前記メインシリンダー（図示せず）のロッドが結合され、前記メインシリンダー（図示せず）によって前記連結板８０と一緒に前記上部金型３０と複数のパンチ部４０が昇降できる。 A rod of the main cylinder (not shown) is coupled to an upper center portion of the connection plate 80, and the upper mold 30 and a plurality of punch portions together with the connection plate 80 by the main cylinder (not shown). 40 can move up and down.
図示されてはいないが、前記連結板８０の上部には、前記連結板８０を垂直貫通した状態で複数の前記イジェクトピン７０の上部とそれぞれ連結されて複数の前記イジェクトピン７０を昇降させるイジェクトシリンダー（図示せず）がボルト固定などの様々な方式で備えられてもよい。 Although not shown, an eject cylinder that is connected to the upper portions of the plurality of eject pins 70 in a state of vertically passing through the connection plates 80 and moves up and down the plurality of eject pins 70 is not shown. (Not shown) may be provided in various ways such as bolting.
そして、複数の前記貫通口３１１内へ複数の前記イジェクトピン７０を上昇させて複数の前記貫通口３１１内に複数の前記イジェクトピン７０が密着するようにするために、前記イジェクトピン７０を前記イジェクトピン７０の上側へ弾性支持する圧縮ばねなどの前記弾性部材１５０が備えられてもよい。 Then, in order to raise the plurality of eject pins 70 into the plurality of through-holes 311 so that the plurality of eject pins 70 are in close contact with the plurality of through-holes 311, the eject pins 70 are ejected. The elastic member 150 such as a compression spring that elastically supports the pin 70 may be provided.
一例として、前記弾性部材１５０の内側に前記イジェクトピン７０の上部が収容された状態で、前記弾性部材１５０の上部は前記連結板８０の下部に一体に連結でき、前記弾性部材１５０の下部は前記イジェクトピン７０の外面に一体に連結できる。 As an example, in a state where the upper portion of the eject pin 70 is accommodated inside the elastic member 150, the upper portion of the elastic member 150 can be integrally connected to the lower portion of the connecting plate 80, and the lower portion of the elastic member 150 is It can be integrally connected to the outer surface of the eject pin 70.
図１１はマルチ成形されたホイールハブを概略的に示す縦断面図、図１２はホイールハブに第１、第２ベアリングが装着された状態を概略的に示す縦断面図である。 FIG. 11 is a longitudinal sectional view schematically showing a multi-molded wheel hub, and FIG. 12 is a longitudinal sectional view schematically showing a state in which first and second bearings are mounted on the wheel hub.
本発明の一実施例に係るマルチ成形用半凝固鍛造成形装置によって、図１１に示すように一度にマルチ成形されたホイールハブなどからなる半凝固鍛造成形品７は、一定の間隔で切断され、図１２に示すように個別製品化できる。 A semi-solid forged molded product 7 composed of a wheel hub or the like that is multi-molded at a time as shown in FIG. 11 by a semi-solid forged molding apparatus for multi-molding according to an embodiment of the present invention is cut at regular intervals, As shown in FIG. 12, it can be made into individual products.
また、個別製品化された半凝固鍛造成形品７を成すことができる前記ホイールハブの上部内側と下部内側にそれぞれ第１、第２ベアリング３３、３４が装着できる。 In addition, first and second bearings 33 and 34 can be mounted on the upper inner side and the lower inner side of the wheel hub, respectively, which can form a semi-solid forged molded product 7 made into an individual product.
上述したように構成された本発明は、マルチ成形の際に、複数のキャビティ１１０に対して溶湯５の定量制御が可能であり、定圧を維持することができるため、物性に優れた製品を成形することができるという利点がある。 The present invention configured as described above is capable of quantitative control of the molten metal 5 with respect to a plurality of cavities 110 during multi-molding, and can maintain a constant pressure, so that a product having excellent physical properties is molded. There is an advantage that you can.
１０ 下部金型
２０ 上部金型
10 Lower mold 20 Upper mold
Claims (9)
前記下部金型との合型の際に、前記複数のキャビティ内に充填された溶湯を加圧する複数のパンチ部と、前記下部金型との合型の際に、前記水平溝内に充填された溶湯を加圧するように、下部面における、前記下部金型の水平溝に対応する位置に形成される加圧突出部とを含む上部金型；及び
前記上部金型を昇降させるメインシリンダー；を含んでなることを特徴とする、マルチ成形用半凝固鍛造成形装置。 The upper surface is filled with a certain amount of molten metal, and a plurality of cavities are formed at regular intervals, and the plurality of cavities are formed on the upper surface between adjacent cavities, and the plurality of cavities are filled. A lower mold including a horizontal groove for quantitative control of the amount of molten metal filled;
When combined with the lower mold, the horizontal grooves are filled with the plurality of punch portions that pressurize the molten metal filled in the plurality of cavities and the lower mold. An upper mold including a pressure protrusion formed at a position corresponding to a horizontal groove of the lower mold on the lower surface so as to pressurize the molten metal; and a main cylinder for raising and lowering the upper mold; A semi-solid forging and forming apparatus for multi-molding, comprising:
前記下部金型は、
中央に前記下部コアのコアボディが収容される収容溝と、前記収容溝の底面の中央に穿設され、前記下部コアのロッド結合部が貫通する貫通孔とが備えられる下部プレートと；
前記下部プレートの上部に固定設置され、前記キャビティが形成される下部サイド金型と；を含むことを特徴とする、請求項１に記載のマルチ成形用半凝固鍛造成形装置。 The lower mold is provided with a lower core composed of a core body and a rod coupling portion protruding from the lower portion of the core body,
The lower mold is
A lower plate provided in the center with a receiving groove in which the core body of the lower core is received, and a through-hole drilled in the center of the bottom surface of the receiving groove and through which the rod coupling portion of the lower core passes;
The semi-solid forging apparatus for multi-molding according to claim 1, comprising: a lower side mold fixedly installed on an upper part of the lower plate and formed with the cavity.
複数の前記貫通口内にそれぞれ配置される複数のイジェクトピンと；複数の前記イジェクトピンを昇降させるイジェクトシリンダーと；が備えられることを特徴とする、請求項４に記載のマルチ成形用半凝固鍛造成形装置。 A plurality of through-holes penetrating vertically are provided on the molding surface of the upper mold corresponding to the upper surface of the flange portion of the wheel hub forming the semi-solid forged molded product,
The semi-solid forging device for multi-molding according to claim 4, comprising: a plurality of eject pins respectively disposed in the plurality of through-holes; and an eject cylinder for raising and lowering the plurality of eject pins. .
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482581A (en) * | 2020-06-10 | 2020-08-04 | 王德忠 | Casting forming demolding treatment process |
| CN117816888A (en) * | 2023-12-12 | 2024-04-05 | 江苏珀然轮毂有限公司 | High-strength aluminum alloy wheel forging die |
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| KR101983261B1 (en) | 2019-05-28 |
| JP6726380B2 (en) | 2020-07-22 |
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