JPH0421623Y2 - - Google Patents
Info
- Publication number
- JPH0421623Y2 JPH0421623Y2 JP1986170391U JP17039186U JPH0421623Y2 JP H0421623 Y2 JPH0421623 Y2 JP H0421623Y2 JP 1986170391 U JP1986170391 U JP 1986170391U JP 17039186 U JP17039186 U JP 17039186U JP H0421623 Y2 JPH0421623 Y2 JP H0421623Y2
- Authority
- JP
- Japan
- Prior art keywords
- core
- mold
- jig
- electromagnet
- attached
- 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
Links
- 238000005266 casting Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 8
- 238000005452 bending Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、鋳型に中子を納めるのに使用する中
子納め装置に関するものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a core holding device used for placing a core in a mold.
従来の技術
例えば、自動車のエンジンの軽量化を図るた
め、クランクシヤフトのピン部、あるいはジヤー
ナル部を中空化する場合、該中空部にシエル中子
を使用している。第４図および第５図はこの種の
クランクシヤフトの鋳造要領を示したもので、鋳
型〔下型〕１の上面１ａには、クランクシヤフト
と同一形状の複数のキヤビテイ２が並設形成して
あり、この各キヤビテイ２に複数個の棒状の中子
３をセツトする。上記鋳型１は、造形ライン４に
そつて間欠移送され、その移送途上の中子納めス
テーシヨン５において鋳型１内に中子３を納め
る。従来、上記鋳型１内へ中子３を納める方法と
して、次の３つの方法があつた。第１は、作業者
の手作業によるセツトである。第２は、上記中子
３を、昇降可能に、かつ、往復移動可能に吊設さ
れた納め治具６の下面に装着したクランプ爪で機
械的に把持してセツトする方法である。第３は、
中子３を、上記納め治具６の下面に装着した吸盤
で真空吸着してセツトする方法である。2. Description of the Related Art For example, when a pin portion or a journal portion of a crankshaft is hollowed out in order to reduce the weight of an automobile engine, a shell core is used in the hollow portion. Figures 4 and 5 show the casting procedure for this type of crankshaft, in which a plurality of cavities 2 having the same shape as the crankshaft are formed in parallel on the upper surface 1a of the mold [lower mold] 1. A plurality of rod-shaped cores 3 are set in each cavity 2. The mold 1 is intermittently transferred along the molding line 4, and the core 3 is placed in the mold 1 at a core placement station 5 during the transfer. Conventionally, there have been the following three methods for placing the core 3 into the mold 1. The first is manual setting by an operator. The second method is to mechanically grip and set the core 3 with clamp claws attached to the lower surface of the storage jig 6, which is suspended so that it can be raised and lowered and reciprocated. The third is
This is a method in which the core 3 is set by vacuum suction using a suction cup attached to the lower surface of the holding jig 6.
考案が解決しようとする問題点
第１の作業者の手作業により鋳型１内に中子３
をセツトする方法では、短時間で複数本の中子３
を鋳型１内にセツトすることができず、作業性が
きわめて悪く、しかも、中子３を正確に位置決め
することができないという問題があつた。また、
第２のクランプ爪で中子３を把持して機械的にセ
ツトする方法によれば、中子３は小径で、かつ、
強度がないため、該中子３をクランプ爪で把持す
ると、その把持力により中子３が破損するという
問題があつた。さらに、第３の中子３を真空吸着
してセツトする方法では、中子３の砂の粒度が荒
いため、中子３に塗型材を塗る塗型が必要とな
り、それだけコスト高になると共に、中子３の外
周面が円弧状であるため、中子３を水平な姿勢で
吸着することは困難であつた。しかも、上記中子
３の吸着時に、吸着部位間に誤差が生じると、中
子３に曲げ荷重が加わり、これが為、中子３は強
度がないこととも相俟つて破損するという問題が
あつた。The problem that the invention aims to solve: The core 3 is inserted into the mold 1 manually by the first worker.
In this method, multiple cores 3 can be set in a short time.
There was a problem that the core 3 could not be set in the mold 1, resulting in extremely poor workability and that the core 3 could not be positioned accurately. Also,
According to the method of mechanically setting the core 3 by gripping it with the second clamp claw, the core 3 has a small diameter and
Because of the lack of strength, there was a problem in that when the core 3 was gripped by the clamp claws, the core 3 was damaged by the gripping force. Furthermore, in the method of setting the third core 3 by vacuum suction, since the grain size of the sand in the core 3 is coarse, a coating mold is required to coat the core 3 with a coating material, which increases the cost accordingly. Since the outer peripheral surface of the core 3 is arcuate, it is difficult to attract the core 3 in a horizontal position. Moreover, if an error occurs between the suction parts when the core 3 is attracted, a bending load is applied to the core 3, which causes the problem that the core 3 is damaged due to its lack of strength. .
問題点を解決するための手段
本考案は、上記問題点に鑑み、提案されたもの
で、昇降可能に、かつ、水平往復移動可能に吊設
された納め治具と、上記納め治具の下面に弾性的
に吊下保持された電磁石と、上記電磁石に離反可
能に吸着され、かつ、中子に装着されて鋳造時に
一体的に鋳ぐるまれる金属製薄板のクランプ片と
からなるものである。Means for Solving the Problems The present invention was proposed in view of the above problems, and includes a storage jig that is suspended so that it can be raised and lowered and horizontally reciprocated, and a lower surface of the storage jig. It consists of an electromagnet that is elastically suspended and held, and a thin metal plate clamp piece that is releasably attracted to the electromagnet, is attached to the core, and is integrally cast during casting. .
作 用
本考案によれば、中子吸着位置において、中子
に装着したクランプ片を、納め治具に取付けたマ
グネツトで吸着することにより、納め治具に中子
を吊下保持したのち、上記納め治具を中子セツト
位置へ移動させ、該中子セツト位置に位置決め保
持された鋳型内に中子を離反させると、鋳型内に
中子を納めることができる。したがつて、上記中
子に外力等が加わつて破損したりすることがな
い。しかも上記クランプ片は、鋳造時にケレンと
して一体的に鋳ぐるまれ、中子納め時の位置ずれ
及び注湯時の中子の変形による鋳物の偏肉が防止
される。Effect According to the present invention, at the core adsorption position, the clamp piece attached to the core is attracted by the magnet attached to the housing jig, and after the core is suspended and held on the housing jig, the above-mentioned When the housing jig is moved to the core setting position and the core is separated from the mold which is positioned and held at the core setting position, the core can be stored in the mold. Therefore, the core will not be damaged due to external force applied thereto. Furthermore, the clamp piece is integrally enclosed in the mold as a burr during casting, thereby preventing misalignment of the casting when the core is housed and uneven thickness of the casting due to deformation of the core during pouring.
実施例
以下本考案の実施例を第１図乃至第３図を参照
しながら説明すると次の通りである。尚、第４図
および第５図に示したものと同一物は同一符号で
示し説明を省略する。１１は上記中子納めステー
シヨン５に立設した複数本の支柱、１２は上記支
柱１１の上端部間に水平に架設したガイドレー
ル、１３は上記ガイドレール１２上に中子納めス
テーシヨン５の中子吸着位置ａと中子セツト位置
ｂとの間を水平往復移動可能に設置した台車で、
この台車１３には駆動シリンダ〔図示省略〕およ
び該駆動シリンダの両側に配置されたガイドスリ
ーブ１４が貫通固定してある。１５は上記台車１
３に複数本の支持アーム１６を介して吊設した支
持部材で、この支持部材１５に台車１３上の駆動
シリンダのロツド先端を貫通させてある。１７は
上記ガイドスリーブ１４に上下移動可能に嵌挿し
た複数本のガイドロツドで、このガイドロツド１
７の下端は上記支持部材１５に貫通させてある。
１８は上記駆動シリンダのロツド先端およびガイ
ドロツド１７の先端に取付固定した取付基板で、
この取付基板１８は、上記支持部材１５の下面１
９に、下方へ移動可能に当接保持してある。２０
は上記取付基板１８の下面１８ａに取替可能に装
着した納め治具で、この納め治具２０の下面２１
には、第１図に示す如く凹所２２を形成してあ
る。２３は上記納め治具２０の凹所２２の頂面２
４に支持スプリング２５を介して弾性的に吊下保
持した複数個のブロツク状マグネツト、例えば、
電磁石で、この電磁石２３は、中子３の鋳型１内
への納め位置に対応させて設けてある。２６は上
記中子３の両端３ａ，３ａに巻装した金属製薄板
からなるクランプ片で、このクランプ片２６を上
記電磁石２３で吸着することにより納め治具２０
に中子３を弾性的に吊下保持する。上記クランプ
片２６は、鋳造時にケレンとして一体的に鋳ぐる
まれ、中子納め時の位置ずれ及び注湯時の中子の
変形による鋳物の偏肉が防止される。２７は上記
中子納めステーシヨン５の中子吸着位置ａにおい
て上記納め治具２０の下方に設置した載置台で、
この載置台２７の上面２８に複数個の中子３を鋳
型１内への納め位置に対応させて載置する。Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3. Components that are the same as those shown in FIGS. 4 and 5 are designated by the same reference numerals, and description thereof will be omitted. Reference numeral 11 denotes a plurality of columns erected on the core storage station 5, 12 a guide rail installed horizontally between the upper ends of the support columns 11, and 13 the cores of the core storage station 5 on the guide rail 12. A trolley installed so that it can be horizontally reciprocated between the suction position a and the core setting position b,
A drive cylinder (not shown) and guide sleeves 14 disposed on both sides of the drive cylinder are fixedly fixed to the truck 13 through the drive cylinder. 15 is the above trolley 1
3 is suspended via a plurality of support arms 16, and the tip of the rod of the drive cylinder on the truck 13 is passed through the support member 15. A plurality of guide rods 17 are fitted into the guide sleeve 14 so as to be movable up and down.
The lower end of 7 is passed through the support member 15.
Reference numeral 18 denotes a mounting board fixedly attached to the tip of the rod of the drive cylinder and the tip of the guide rod 17;
This mounting board 18 is attached to the lower surface 1 of the support member 15.
9, it is abutted and held so as to be movable downward. 20
is a mounting jig that is replaceably attached to the lower surface 18a of the mounting board 18, and the lower surface 21 of this mounting jig 20 is
A recess 22 is formed therein as shown in FIG. 23 is the top surface 2 of the recess 22 of the storage jig 20
A plurality of block-shaped magnets, for example, are held elastically suspended from the magnet 4 via a support spring 25.
This electromagnet 23 is an electromagnet, and is provided in correspondence with the position where the core 3 is placed in the mold 1. Reference numeral 26 denotes a clamp piece made of a thin metal plate wrapped around both ends 3a, 3a of the core 3. By attracting this clamp piece 26 with the electromagnet 23, the jig 20 is fixed.
The core 3 is elastically suspended and held. The clamp piece 26 is integrally molded as a crevice during casting, and uneven thickness of the casting due to misalignment when the core is housed and deformation of the core during pouring is prevented. 27 is a mounting table installed below the above-mentioned holding jig 20 at the core suction position a of the above-mentioned core holding station 5;
A plurality of cores 3 are placed on the upper surface 28 of this mounting table 27 in correspondence with the positions in which they will be placed in the mold 1.
次に本考案に係る装置により鋳型に中子を納め
る要領について説明すると次の通りである。 Next, the procedure for placing the core in the mold using the apparatus according to the present invention will be explained as follows.
上記台車１３は中子吸着位置ａに位置してお
り、また、載置台２７上には予め両端３ａ，３ａ
にクランプ片２６を巻装した複数個の中子３を載
置してある。そして、上記鋳型１が造形ライン４
にそつて間欠移送され、中子納めステーシヨン５
の中子セツト位置ｂに停止すると、台車１３に吊
設された支持部材１５の下面１９に当接保持され
た取付基板１８が、台車１３上の駆動シリンダの
作動によつて、納め治具２０と一体となつて下降
する。上記納め治具２０が下降端に位置すると、
納め治具２０に装着された電磁石２３が、上記載
置台２７上の各中子３に巻装したクランプ片２６
を吸着し、中子３は納め治具２０に弾性的に吊下
保持される。このとき上記電磁石２３は支持スプ
リング２５を介して納め治具２０に装着してある
ので、中子３の各吸着部位間の誤差は上記支持ス
プリング２５で吸収され、中子３に曲げ荷重が加
わることがなく、中子３の破損を確実に防止する
ことができる。こうして上記納め治具２０に中子
３が吊下保持されると、上記取付基板１８が支持
部材１５の下面１９に当接するまで上昇したの
ち、台車１３が中子セツト位置ｂへ向かつて移動
する。そして、上記台車１３が中子セツト位置ｂ
に停止すると、台車１３上の駆動シリンダが作動
し、支持部材１５の下面１９に当接保持された取
付基板１８が、納め治具２０と一体となつて下降
する。上記納め治具２０が下降端に位置し、該納
め治具２０の電磁石２３に吸着した中子３が鋳型
１内の定位置に保持されると、スイツチがoffと
なつて電磁石２３が非導通状態となり、これによ
りクランプ片２６が電磁石２３から離反し、中子
３は鋳型１内の定位置に正確に位置決め保持され
る。鋳型１内に中子３が納まると、上記取付基板
１８が支持部材１５の下面１９に当接するまで上
昇したのち、台車１３が中子吸着位置ａへ向かつ
て移動し、該吸着位置ａで待機する。 The trolley 13 is located at the core suction position a, and the two ends 3a, 3a are placed on the mounting table 27 in advance.
A plurality of cores 3 each having a clamp piece 26 wound thereon are mounted on the core 3. Then, the mold 1 is placed on the molding line 4.
The core is transferred intermittently along the core loading station 5.
When it stops at the core setting position b, the mounting board 18, which is held in contact with the lower surface 19 of the support member 15 suspended from the trolley 13, is moved to the mounting jig 20 by the operation of the drive cylinder on the trolley 13. It descends as one. When the storage jig 20 is located at the lower end,
The electromagnet 23 attached to the storage jig 20 is attached to the clamp piece 26 wound around each core 3 on the mounting table 27.
is adsorbed, and the core 3 is held elastically suspended by the holding jig 20. At this time, since the electromagnet 23 is attached to the holding jig 20 via the support spring 25, the error between the adsorption parts of the core 3 is absorbed by the support spring 25, and a bending load is applied to the core 3. Therefore, damage to the core 3 can be reliably prevented. When the core 3 is suspended and held by the mounting jig 20 in this manner, the mounting board 18 rises until it comes into contact with the lower surface 19 of the support member 15, and then the cart 13 moves toward the core setting position b. . Then, the cart 13 is moved to the core setting position b.
When it stops, the drive cylinder on the truck 13 is actuated, and the mounting board 18 held in contact with the lower surface 19 of the support member 15 descends together with the storage jig 20. When the holding jig 20 is at the lower end and the core 3 attracted to the electromagnet 23 of the holding jig 20 is held at a fixed position in the mold 1, the switch is turned off and the electromagnet 23 is non-conducting. As a result, the clamp piece 26 separates from the electromagnet 23, and the core 3 is accurately positioned and held at a fixed position within the mold 1. When the core 3 is placed in the mold 1, the mounting board 18 rises until it comes into contact with the lower surface 19 of the support member 15, and then the cart 13 moves toward the core suction position a, and waits at the suction position a. do.
考案の効果
本考案によれば、中子に装着したクランプ片
を、納め治具に弾性体を介して取付けた電磁石で
吸着することにより、納め治具に中子を吊下保持
するので、中子の各吸着部位間の誤差を吸収する
ことができ、中子に曲げ荷重が加わることがな
く、中子の破損を確実に防止することができる。
しかも、クランプ片は、鋳造時、ケレンとして一
体的に鋳ぐるまれ、中子納め時の位置ずれ及び注
湯時の中子の変形による鋳物の偏肉を防止し得
る。また、中子に塗型材を塗る必要がないので、
作業性の大幅な向上およびコストの低減化を図る
ことができると共に、中子を水平な姿勢で吸着保
持することができる。Effects of the invention According to the invention, the clamp piece attached to the core is attracted by an electromagnet attached to the housing jig through an elastic body, thereby suspending and holding the core from the housing jig. It is possible to absorb errors between the adsorption parts of the core, no bending load is applied to the core, and breakage of the core can be reliably prevented.
Moreover, the clamp piece is integrally enclosed in the mold during casting, and can prevent uneven thickness of the casting due to misalignment when the core is housed and deformation of the core during pouring. In addition, there is no need to apply coating material to the core.
Workability can be greatly improved and costs can be reduced, and the core can be held in a horizontal position by suction.
第１図は本考案に係る装置の要部断面図、第２
図は中子の拡大側断面図、第３図は装置の全体を
示した概略説明図である。第４図は鋳型内に中子
をセツトする要領を示した平面図、第５図は従来
の中子納め方法を説明するための概略平面説明図
である。
３……中子、２０……納め治具、２１……下
面、２３……電磁石、２６……クランプ片。
Figure 1 is a sectional view of the main parts of the device according to the present invention, Figure 2
The figure is an enlarged side sectional view of the core, and FIG. 3 is a schematic explanatory view showing the entire device. FIG. 4 is a plan view showing how to set the core in the mold, and FIG. 5 is a schematic plan view for explaining the conventional method of placing the core. 3... core, 20... storage jig, 21... lower surface, 23... electromagnet, 26... clamp piece.
Claims (1)
れた納め治具と、上記納め治具の下面に弾性的に
吊下保持された電磁石と、上記電磁石に離反可能
に吸着され、かつ、中子に装着されて鋳造時に一
体的に鋳ぐるまれる金属製薄板のクランプ片とか
らなる中子納め装置。 A storage jig that is suspended so that it can be raised and lowered and horizontally reciprocated; an electromagnet that is elastically suspended from the lower surface of the storage jig; A core holding device consisting of a thin metal plate clamp piece that is attached to a core and integrally cast during casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986170391U JPH0421623Y2 (en) | 1986-11-05 | 1986-11-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986170391U JPH0421623Y2 (en) | 1986-11-05 | 1986-11-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6376339U JPS6376339U (en) | 1988-05-20 |
| JPH0421623Y2 true JPH0421623Y2 (en) | 1992-05-18 |
Family
ID=31105079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986170391U Expired JPH0421623Y2 (en) | 1986-11-05 | 1986-11-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0421623Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2580136Y2 (en) * | 1993-06-11 | 1998-09-03 | 新東工業株式会社 | Core lifting mechanism |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4944932A (en) * | 1972-07-27 | 1974-04-27 |
-
1986
- 1986-11-05 JP JP1986170391U patent/JPH0421623Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4944932A (en) * | 1972-07-27 | 1974-04-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6376339U (en) | 1988-05-20 |
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