JPH0513745B2 - - Google Patents
Info
- Publication number
- JPH0513745B2 JPH0513745B2 JP58112302A JP11230283A JPH0513745B2 JP H0513745 B2 JPH0513745 B2 JP H0513745B2 JP 58112302 A JP58112302 A JP 58112302A JP 11230283 A JP11230283 A JP 11230283A JP H0513745 B2 JPH0513745 B2 JP H0513745B2
- Authority
- JP
- Japan
- Prior art keywords
- weir
- cylindrical body
- wheel hub
- flange
- casting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005266 casting Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 description 9
- 239000002184 metal Substances 0.000 description 8
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はホイールハブの新規な鋳造方法に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a novel method for casting wheel hubs.
従来、ホイールハブを鋳造するには、第１図に
示すように、砂型を用いて、筒体１１の外側面に
突設されたフランジ１５の先端に堰１７を介して
いくつかの押湯１９を設け、これらの押湯１９の
湯道２１を介して湯口２３を設けていた。
Conventionally, in order to cast a wheel hub, as shown in FIG. were provided, and a sprue 23 was provided via the runner 21 of these feeders 19.
しかしながら、かかる従来の鋳造方法にあつて
は、堰１７が平滑な表面を必要とするフランジ１
５の先端に設けられていたため、堰折り作業によ
つて生ずるフランジ１５先端面の堰跡（突出して
いる）を切削加工して平滑化しなければならず、
鋳造作業に極めて手間がかかるという不都合を有
した。
However, in such a conventional casting method, the weir 17 is attached to the flange 1 which requires a smooth surface.
Since it was provided at the tip of the flange 15, the weir marks (protruding) on the tip surface of the flange 15 caused by the weir folding work had to be cut and smoothed.
This had the disadvantage that the casting work was extremely time consuming.
この発明の課題はかかる不都合を解消すること
である。 An object of the present invention is to eliminate such disadvantages.
前記課題を解決するために、この発明に係るホ
イールハブの鋳造方法においては、円筒体の外側
面にフランジを有するとともにこの円筒体の内周
面に周方向に略並行状態の一対のリブを有するホ
イールハブを鋳造するにあたつて、
前記円筒体の内側面を中子によつて成形し、前
記中子に湯道と堰とを設けるとともにこの堰を前
記円筒体の内周面における前記一対のリブの間に
配置したものである。
In order to solve the above problems, the wheel hub casting method according to the present invention has a flange on the outer surface of a cylindrical body, and a pair of ribs that are substantially parallel to each other in the circumferential direction on the inner peripheral surface of the cylindrical body. When casting a wheel hub, the inner surface of the cylindrical body is molded with a core, and the core is provided with a runner and a weir, and the weir is connected to the pair of runners on the inner peripheral surface of the cylindrical body. It is placed between the ribs.
なお、前記堰を前記フランジの裏面に配置する
こともできる。 In addition, the said weir can also be arrange|positioned on the back surface of the said flange.
この発明に係るホイールハブの鋳造方法は上記
のように構成されているため、
前記一対のリブの間に堰跡が残るため、この部
分を潤滑油封入部として使用することを考慮すれ
ば、この部分を平滑する必要がない結果、鋳造工
程において、この堰跡を切削加工する必要はなく
なるものである。特に、堰跡の切削方法は断続切
削となるため、この切削工程を省略できるという
ことはホイールハブの生産性を極めて向上させる
得るものである。
Since the wheel hub casting method according to the present invention is configured as described above, a weir mark remains between the pair of ribs. As a result, there is no need to cut these weir marks in the casting process. In particular, since the cutting method for the weir marks is interrupted cutting, being able to omit this cutting step can greatly improve the productivity of the wheel hub.
なお、前記堰を前記円筒体の内側面における前
記フランジの裏面に配置すれば、堰からキヤビテ
イに噴出する溶湯は一端フランジ方向に向かい、
その後、円筒体部に流れる結果、湯の流れが滑ら
かになる結果、鋳造欠陥が発生しにくいものであ
る。 Furthermore, if the weir is arranged on the back side of the flange on the inner surface of the cylindrical body, the molten metal spouted from the weir into the cavity will head toward the flange at one end,
Thereafter, as a result of the molten metal flowing into the cylindrical body portion, the flow becomes smooth, and as a result, casting defects are less likely to occur.
以下、第２図および第３図に基づいてこの発明
の実施例を説明する。
Embodiments of the present invention will be described below based on FIGS. 2 and 3.
第２図に示すように、ホイールハブ１１は、円
筒体１３とフランジ１５と一対のリブ２５，２７
とを有する。即ち、フランジ１５は円盤状であり
円筒体１３の外周面に該円筒体１３と直交した状
態で突設され、又、一対のリブ２５，２７は円筒
体１３の内周面に該円筒体１３の直交した状態で
並列して突接されている。これらの一対のリブ２
５，２７の間はホイールハブ１１における潤滑油
封入部として機能し、鋳造されたそのまま状態で
使用される。また、前記円筒体１３の内側面にお
ける前記各々のリブ２５，２７の外側は付属部品
嵌着部として機能し、鋳造後切削加工されて軸受
が嵌着される。このホイールハブ１１は後記する
鋳造方法によつて鋳造されたものであり、筒体１
３の内部に堰１７が、中心から筒体１３における
前記フランジ１５の裏面に向かつて配置され、
この堰１７の中心部には湯道２１が上方に向か
つて立設されている。なお、これらの堰１７およ
び湯道２１は鋳仕上げの際除去されるものであ
る。 As shown in FIG. 2, the wheel hub 11 includes a cylindrical body 13, a flange 15, and a pair of ribs 25, 27.
and has. That is, the flange 15 is disc-shaped and protrudes from the outer circumferential surface of the cylindrical body 13 in a state perpendicular to the cylindrical body 13, and the pair of ribs 25 and 27 are provided on the inner circumferential surface of the cylindrical body 13. are parallel and butt in a perpendicular state. These pair of ribs 2
The portion between 5 and 27 functions as a lubricating oil sealing part in the wheel hub 11, and is used as it is cast. Further, the outer side of each of the ribs 25 and 27 on the inner surface of the cylindrical body 13 functions as an accessory fitting part, and is cut after casting and a bearing is fitted therein. This wheel hub 11 is cast by a casting method described later, and has a cylindrical body 1.
A weir 17 is disposed inside the weir 17 from the center toward the back surface of the flange 15 of the cylinder 13, and a runner 21 is erected in the center of the weir 17 so as to face upward. Note that these weirs 17 and runners 21 are removed during casting finishing.
このホイールハブ１１を鋳造するには第３図に
示すように、ホイールハブ１１の外側面、即ち円
筒体１３の外側面およびフランジ１５を形成する
金属製の上型３１と下型３３とを用い、又、一対
のリブ２５，２７等、円筒体１３の内側は中子砂
により形成された中子３５を用いて形成される。
中子３５には溶湯をキヤビテイ３７に注ぐために
湯道空間３９およびこの湯道空間３９とキヤビテ
イ３７とを連通せしめる堰空間４１とが設けられ
ている。堰空間４１の端部は、(1)最終凝固部分４
３が最後に凝固するよう、又、(2)湯が滑らかに流
れるよう、キヤビテイ３７における、フランジ１
５を形成する部分の略裏側の位置において連結さ
れている。 In order to cast this wheel hub 11, as shown in FIG. Also, the inner side of the cylindrical body 13, such as the pair of ribs 25 and 27, is formed using a core 35 made of core sand.
The core 35 is provided with a runner space 39 for pouring molten metal into the cavity 37, and a weir space 41 that communicates the runner space 39 with the cavity 37. The end of the weir space 41 is (1) the final solidified portion 4
Flange 1 in cavity 37 so that (2) hot water flows smoothly,
They are connected at a position substantially on the back side of the portion forming the numeral 5.
このため、ホイールハブ１１を鋳造するにあた
つて、湯道空間３９から注入された溶湯は堰空間
４１を通過してホイールハブ１１を形成するキヤ
ビテイ３７に浸入する。浸入後は、金型３１，３
３によつて形成される円筒体１３の外側面および
フランジ１５が、中子３５によつて形成される筒
体１３の内側面並びに湯道２１および堰１７より
も迅速に凝固される。又、湯道空間３９と堰空間
４１はキヤビテイ３７に囲まれているため、キヤ
ビテイ３７に浸入した溶湯の熱量によつて加熱さ
れ、この結果これらの空間３９，４１内に貯留し
た溶湯、即ち、堰１７および湯道２１は凝固しに
くいものである。鋳造後、鋳型よりホイールハブ
１１を取り出し、堰折り作業によつて堰１７およ
び湯道２１を除去しする。そして、付属部品嵌着
部は切削加工され、堰跡はそのまま残される。 Therefore, when casting the wheel hub 11, the molten metal injected from the runner space 39 passes through the weir space 41 and enters the cavity 37 forming the wheel hub 11. After infiltration, molds 31, 3
The outer surface of the cylinder 13 formed by the core 35 and the flange 15 solidify more quickly than the inner surface of the cylinder 13 formed by the core 35 and the runners 21 and weirs 17. Moreover, since the runner space 39 and the weir space 41 are surrounded by the cavity 37, they are heated by the heat of the molten metal that has entered the cavity 37, and as a result, the molten metal stored in these spaces 39, 41, that is, Weir 17 and runner 21 are difficult to solidify. After casting, the wheel hub 11 is taken out from the mold, and the weir 17 and runner 21 are removed by a weir folding operation. Then, the fitting part of the accessory is cut and the weir marks are left as they are.
この発明に係るホイールハブの鋳造方法は、円
筒体の外側面にフランジを有するとともにこの円
筒体の内周面に周方向に略並行状態の一対のリブ
を有するホイールハブを鋳造するにあたつて、
前記円筒体の内側面を中子によつて成形し、前
記中子に湯道と堰とを設けるとともにこの堰を前
記円筒体の内周面における前記一対のリブの間に
配置したため、
前記一対のリブの間に堰跡が残る結果、この部
分を潤滑油封入部として使用することを考慮すれ
ば、この部分を平滑化する必要がないため、鋳造
工程において、この堰跡を切削加工する必要はな
くなるものである。特に、堰跡の切削方法は断続
切削となるため、この切削工程を省略できるとい
うことはホイールハブの生産性を極めて向上させ
る得るものである。
A wheel hub casting method according to the present invention includes casting a wheel hub having a flange on the outer surface of a cylindrical body and a pair of ribs substantially parallel to each other in the circumferential direction on the inner peripheral surface of the cylindrical body. , the inner surface of the cylindrical body is molded by a core, the core is provided with a runner and a weir, and the weir is disposed between the pair of ribs on the inner peripheral surface of the cylindrical body; As a result of the weir marks remaining between the pair of ribs, there is no need to smooth this part considering that this part is used as a lubricant sealing part, so it is necessary to cut these weir marks during the casting process. will disappear. In particular, since the cutting method for the weir marks is interrupted cutting, being able to omit this cutting step can greatly improve the productivity of the wheel hub.
特に、堰跡の切削方法は断続切削となるため、
この切削工程を省略できるということはホイール
ハブの生産性を極めて向上させる得るものであ
る。 In particular, since the cutting method for weir marks is interrupted cutting,
The fact that this cutting process can be omitted greatly improves the productivity of wheel hubs.
なお、前記堰を前記円筒体の内側面における前
記フランジの裏面に配置すれば、堰からキヤビテ
イに噴出する溶湯は一端フランジ方向に向かい、
その後、円筒体部に流れる結果、湯の流れが滑ら
かになる結果、鋳造欠陥が発生しにくいものであ
る。 Furthermore, if the weir is arranged on the back side of the flange on the inner surface of the cylindrical body, the molten metal spouted from the weir into the cavity will head toward the flange at one end,
Thereafter, as a result of the molten metal flowing into the cylindrical body portion, the flow becomes smooth, and as a result, casting defects are less likely to occur.
第１図は従来の鋳造方法によつて鋳造されたホ
イールハブの縦断面図、第２図はこの発明によつ
て鋳造されたホイールハブの縦断面図、第３図は
第２図に示されるホイールハブを鋳造するに使用
する鋳型の切欠断面図。
１１……ホイールハブ、１３……円筒体、１５
……フランジ、１７……堰、２５……リブ、２７
……リブ。
Fig. 1 is a longitudinal sectional view of a wheel hub cast by a conventional casting method, Fig. 2 is a longitudinal sectional view of a wheel hub cast by the present invention, and Fig. 3 is shown in Fig. 2. A cutaway sectional view of a mold used to cast a wheel hub. 11...Wheel hub, 13...Cylindrical body, 15
...Flange, 17...Weir, 25...Rib, 27
……rib.
Claims (1)
この円筒体の内周面に周方向に略並行状態の一対
のリブを有するホイールハブを鋳造するにあたつ
て、 前記円筒体の内側面を中子によつて成形し、前
記中子に湯道と堰とを設けるとともにこの堰を前
記円筒体の内周面における前記一対のリブの間に
配置したことを特徴とするホイールハブの鋳造方
法。 ２ 前記堰を前記フランジの裏面に配置したこと
を特徴とするホイールハブの鋳造方法。[Scope of Claims] 1. In casting a wheel hub having a flange on the outer surface of the cylindrical body and a pair of ribs substantially parallel to each other in the circumferential direction on the inner peripheral surface of the cylindrical body, the cylindrical body has the following steps: The inner surface of the wheel is formed by a core, the core is provided with a runner and a weir, and the weir is disposed between the pair of ribs on the inner peripheral surface of the cylindrical body. How to cast the hub. 2. A method for casting a wheel hub, characterized in that the weir is placed on the back surface of the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11230283A JPS603942A (en) | 1983-06-21 | 1983-06-21 | Casting method of wheel hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11230283A JPS603942A (en) | 1983-06-21 | 1983-06-21 | Casting method of wheel hub |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS603942A JPS603942A (en) | 1985-01-10 |
| JPH0513745B2 true JPH0513745B2 (en) | 1993-02-23 |
Family
ID=14583277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11230283A Granted JPS603942A (en) | 1983-06-21 | 1983-06-21 | Casting method of wheel hub |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS603942A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861875A (en) * | 2011-07-07 | 2013-01-09 | 吴玉荣 | Improved hub pouring gate |
| CN103317100B (en) * | 2012-03-21 | 2016-05-04 | 中集车辆（集团）有限公司 | A kind of method of manufacturing S. G. Cast Iron Wheel Hub |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54162621A (en) * | 1978-06-14 | 1979-12-24 | Honda Motor Co Ltd | Core for diecast |
| JPS5884639A (en) * | 1981-11-12 | 1983-05-20 | Masami Michihiro | Mold for wheel |
| JPS58100958A (en) * | 1981-12-11 | 1983-06-15 | Daido Steel Co Ltd | Casting method |
-
1983
- 1983-06-21 JP JP11230283A patent/JPS603942A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54162621A (en) * | 1978-06-14 | 1979-12-24 | Honda Motor Co Ltd | Core for diecast |
| JPS5884639A (en) * | 1981-11-12 | 1983-05-20 | Masami Michihiro | Mold for wheel |
| JPS58100958A (en) * | 1981-12-11 | 1983-06-15 | Daido Steel Co Ltd | Casting method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS603942A (en) | 1985-01-10 |
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