JPH03106532A - Method and device for forming cylindrically molded forming body with flange - Google Patents

Method and device for forming cylindrically molded forming body with flange

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Publication number
JPH03106532A
JPH03106532A JP24561089A JP24561089A JPH03106532A JP H03106532 A JPH03106532 A JP H03106532A JP 24561089 A JP24561089 A JP 24561089A JP 24561089 A JP24561089 A JP 24561089A JP H03106532 A JPH03106532 A JP H03106532A
Authority
JP
Japan
Prior art keywords
hole
molding
molded product
forming
mold
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.)
Pending
Application number
JP24561089A
Other languages
Japanese (ja)
Inventor
Toshiya Amakasu
天粕 壽也
Yoshitsugu Takara
宝楽 義次
Takashi Tamura
孝志 田村
Shigeji Nagira
柳楽 茂治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP24561089A priority Critical patent/JPH03106532A/en
Publication of JPH03106532A publication Critical patent/JPH03106532A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To form the thin cylinder type body without generating cracks on the flange part by extruding the peripheral wall of the cylinder type body after forming the lower part of molded forming body by setting the upper and lower dies to the formed hole which is passed through the upper hole part for forming the flange and the lower hole part for forming the cylinder type body. CONSTITUTION:The lower part of the molded forming body is pressurized and formed between the upper die 5 and the lower die 14 in the forming hole 13 with descending of the upper die 5. In this time, the remaining part 32 of the blank material 30 is housed between the inside wall surface of the upper hole part 10 and the outside wall surface of the projecting part 6 of the upper die 5 for forming the inner wall surface of the molded forming body. And then the upper die 5 is brought more to descend, the remaining part 32 of the blank material 30 is extruded from the gap between the outside wall surface of upper die projecting part and the upper peripheral edge (p) of the lower hole part 11 to the inside of the lower hole part 11 and the peripheral wall 33 of the cylinder type body is formed and the cracks is not generated neither at the flange part.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明はフランジ付筒状成形品の戒、形方法およびその
方法を実施するための装置に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for forming a flanged cylindrical molded article, a method for forming the same, and an apparatus for carrying out the method.

(従来の技術) アウターローター形の精密モーターハブやシリンダーラ
イナーなど、筒状本体の一端外周縁部にフランジ部が凸
設された形状の軽量金属製部品があり、かかるフランジ
付筒状製品は、生産性向上のため、通常加圧成形された
後、仕上加工が施されて生産される。
(Prior art) There are lightweight metal parts such as outer rotor-shaped precision motor hubs and cylinder liners that have a flange protruding from the outer periphery of one end of a cylindrical body. In order to improve productivity, it is usually produced after being press-formed and then subjected to finishing processing.

第5図および第6図は、従来の成形装置と成形プロセス
とを示し、該装置は、フランジ部外周側面成形用の上孔
部41と筒状本体外周側面成形用の下孔部42とが貫通
状に連成された成形孔43を有する孔型44と、前記上
孔部41に摺動自在に挿着されてフランジ上端面および
成形品内周面を成形するための上型45と、前記下孔部
42に摺動自在に挿着されて成形品下面を成形するため
の下型46とを備え、上型45は加圧ステムに取付けら
れており、下型46はベースフレーム49に取付けられ
て、成形位置とノックアウト位置との間で移動自在に挿
着されており、成形完了後、ノックアウトシリンダーに
より押上げられる。47は同シリンダーに連結された押
上げピンである。
FIG. 5 and FIG. 6 show a conventional molding device and a molding process, and this device has an upper hole portion 41 for molding the outer peripheral side of the flange portion and a lower hole portion 42 for molding the outer peripheral side of the cylindrical body. a hole mold 44 having a molding hole 43 connected in a penetrating manner; an upper mold 45 that is slidably inserted into the upper hole portion 41 to mold the upper end surface of the flange and the inner circumferential surface of the molded product; A lower mold 46 is slidably inserted into the lower hole 42 to mold the lower surface of the molded product, the upper mold 45 is attached to the pressure stem, and the lower mold 46 is attached to the base frame 49. It is attached and movably inserted between the molding position and the knockout position, and is pushed up by the knockout cylinder after molding is completed. 47 is a push-up pin connected to the cylinder.

フランジ付筒状成形品を成形するには、まず、素材48
を成形孔43内の下型46上に載置し、第6図のように
上型45を下降し、成形品の下面を成形すると共に素材
を上方のフランジ成形空間へ押し出して成形し、その後
上型45および下型46を上昇して、成形品を成形孔4
3内面より分離し、取り出す。
To form a flanged cylindrical product, first, the material 48
is placed on the lower mold 46 in the molding hole 43, and the upper mold 45 is lowered as shown in Fig. 6 to mold the lower surface of the molded product and extrude the material into the upper flange molding space, and then The upper mold 45 and the lower mold 46 are raised to insert the molded product into the molding hole 4.
3 Separate from the inner surface and take out.

(発明が解決しようとする課題〉 しかしながら、従来の成形方法では、フランジ部に亀裂
を生じることなく成形するには、フランジ部肉厚T2に
対して筒状本体の肉厚T,がT z / T +≦1.
4となるように厚くしなければならない。このため、第
7図に示すように、フランジ部51に対して筒状本体5
2の肉厚が薄肉の製品は、成形品の切削加工用取り代が
大きくなり、歩留りの低下、コストの上昇が著しいとい
う欠点がある。
(Problems to be Solved by the Invention) However, in the conventional forming method, in order to form the flange portion without cracking, the wall thickness T of the cylindrical body is T z / T+≦1.
It must be made as thick as 4. Therefore, as shown in FIG. 7, the cylindrical body 5
Products with thin walls (No. 2) have the drawback that the machining allowance for the molded product becomes large, resulting in a significant decrease in yield and an increase in cost.

本発明はかかる問題点に鑑みなされたもので、フランジ
付筒状製品の筒状本体の肉厚が薄い場合でも、成形品各
部に欠陥が生じず、また取り代を厚くすることなく、成
形することができる方法およびその装置を提供すること
を目的とする。
The present invention was made in view of these problems, and even if the wall thickness of the cylindrical body of a flanged cylindrical product is thin, it is possible to mold the product without causing defects in each part of the molded product and without increasing the machining allowance. The purpose of the present invention is to provide a method and an apparatus for the same.

(課題を解決するための手段) 上記目的を達戒するためになされた本発明の方法は、筒
状本体の上端部外周縁にフランジ部が凸設されたフラン
ジ付筒状成形品の成形方法であって、フランジ部外周側
面成形用の上孔部と筒状本体外周側面成形用の下孔部と
が貫通状に連成された成形孔に素材を装入し、前記上孔
部に挿着されたフランジ上端面および成形品内周面成形
用の上型と前記下孔部に挿着された成形品下面成形用の
下型との間で加圧成形して成形品下部を成形した後、上
型を下降させて筒状本体の周側壁を下孔部内に押出し成
形することを発明の構戒とするものである。
(Means for Solving the Problems) The method of the present invention, which has been made to achieve the above object, is a method for forming a flanged cylindrical molded product in which a flange portion is provided on the outer periphery of the upper end of a cylindrical body. A material is charged into a forming hole in which an upper hole for forming the outer circumferential side of the flange part and a lower hole for forming the outer circumferential side of the cylindrical body are connected in a penetrating manner, and the material is inserted into the upper hole. The lower part of the molded product was formed by pressure forming between the upper mold for molding the upper end face of the flange and the inner peripheral surface of the molded product, and the lower mold for molding the lower face of the molded product inserted into the pilot hole. After that, the upper die is lowered to extrude the circumferential wall of the cylindrical body into the prepared hole.

また、上記方法を実施するため、フランジ部外周側面成
形用の上孔部10と筒状本体外周側面成形用の下孔部1
1とが貫通状に連成された成形孔13を有する孔型9と
、前記上孔部10に摺動自在に挿着されてフランジ上端
面および成形品内周面を成形するための上型5と、前記
下孔部llに摺動自在に挿着されて製品下面を成形する
ための下型l4とを備え、前記上型5は加圧ステム4に
取付けられて成形孔13の上孔部10内を加圧昇降自在
とされ、前記下型14は油圧シリンダー17により下孔
部11内の成形品下部成形位置と成形完了後の成形品の
存する位置より下方の下限位置と成形品取出位置との間
で移動停止自在とされ、成形品下部成形時に下型14を
成形品下部成形位置に固定し、その後上型5の下降によ
り押出成形された成形品と共にあるいは成形品の押出速
度以上の速度で下型14を下降させる油圧回路22を備
えたことを発明の構或とするものである。
In addition, in order to carry out the above method, an upper hole part 10 for forming the outer circumferential side of the flange part and a lower hole part 1 for forming the outer circumferential side of the cylindrical body
a hole mold 9 having a molding hole 13 that is connected to the molding hole 1 in a penetrating manner; 5 and a lower mold 14 which is slidably inserted into the lower hole 11 to mold the lower surface of the product, and the upper mold 5 is attached to the pressure stem 4 and is inserted into the upper hole of the molding hole 13. The lower mold 14 is moved up and down under pressure in the part 10, and the lower mold 14 is moved by a hydraulic cylinder 17 to the lower molding position of the molded product in the lower hole part 11, to the lower limit position below the position where the molded product exists after molding is completed, and to the molded product removal. When molding the lower part of the molded product, the lower mold 14 is fixed at the lower molding position of the molded product, and then the upper mold 5 is lowered to extrude the molded product together with the molded product or at a speed higher than the extrusion speed of the molded product. It is a feature of the invention that a hydraulic circuit 22 is provided to lower the lower die 14 at a speed of .

(作 用) 成形品の下部は、上型の下降により成形孔内で上型と下
型との間で加圧成形される。このとき、素材の残部は上
孔部内周面と上型の成形品内周面戊形用凸部外周面との
間に収納される。
(Function) The lower part of the molded product is pressure-formed between the upper mold and the lower mold within the molding hole as the upper mold descends. At this time, the remaining part of the material is stored between the inner circumferential surface of the upper hole and the outer circumferential surface of the protrusion for shaping the inner circumferential surface of the molded product of the upper die.

その後、上型を更に下降させると、前記素材の残部が上
型凸部外周面と下孔部上端.周縁との隙間より下孔部内
に押出され、筒状本体の周側壁が成形される。前記隙間
は筒状本体の肉厚を規制し、上孔部内径寸法(すなわち
フランジ部外形寸法)の如何に拘らず自由に設定するこ
とができ、成形後フランジ部に亀裂が生じることもない
Thereafter, when the upper mold is further lowered, the remaining material is distributed between the outer peripheral surface of the upper mold convex part and the upper end of the lower hole part. It is extruded into the prepared hole through the gap with the peripheral edge, and the peripheral side wall of the cylindrical body is formed. The gap regulates the wall thickness of the cylindrical body and can be set freely regardless of the inner diameter dimension of the upper hole (ie, the outer dimension of the flange part), and no cracks will occur in the flange part after molding.

また、本発明の成形装置によれば、成形品下部を成形し
た後、上型の下降による筒状本体周壁部の押出成形時に
下型が成形品と共にあるいは押出速度以上の速度で下降
させる油圧回路を備えているので、成形品に過大な圧力
がかからず、同一の金型で成形品下部および筒状本体の
周側壁を一度に成形することができる。
Further, according to the molding apparatus of the present invention, after molding the lower part of the molded product, when the upper mold is lowered to extrude the peripheral wall of the cylindrical body, the lower mold is lowered together with the molded product or at a speed higher than the extrusion speed. Because of this, excessive pressure is not applied to the molded product, and the lower part of the molded product and the peripheral side wall of the cylindrical body can be molded at the same time using the same mold.

(実施例) まず本発明の成形方法を実施するための成形装置につい
て第1図〜第3図を参照して説明する。
(Example) First, a molding apparatus for carrying out the molding method of the present invention will be described with reference to FIGS. 1 to 3.

装置の全体および初期位置を示す第1図において、ベー
スフレームlに対してヘッドフレーム2が油圧作動の主
シリンダー3によって昇降、加圧自在に設けられている
。尚、ヘッドフレーム2を無負荷状態で昇降(早送り)
させるために副シリンダーを設けてもよい。
In FIG. 1, which shows the entire device and its initial position, a head frame 2 is provided on a base frame 1 so as to be movable up and down and pressurized by a hydraulically operated main cylinder 3. In addition, the head frame 2 is raised and lowered (fast forward) with no load.
A sub-cylinder may be provided for this purpose.

ヘッドフレーム2には、プレス中心に加圧ステム4が垂
設されてお蝿、その下端に上型5が取り付けられている
。該上型5の下部には成形品内周面を成形するための凸
部6が形威されている。
A pressurizing stem 4 is vertically disposed at the center of the press on the head frame 2, and an upper die 5 is attached to the lower end of the pressurizing stem 4. A convex portion 6 for molding the inner peripheral surface of the molded product is formed at the lower part of the upper mold 5.

ベースフレームlのプレス中心には成形品の外周側面を
成形するための孔型9が設置されており、該孔型9には
フランジ部外周側面成形用の上孔部10と筒状本体外周
側面成形用の下孔部11とがテーパ一部12を介して連
成された成形孔13が貫通状に形威されている。前記上
孔部10には上型基部7が摺動自在に挿着される。尚、
テーパ一部12の傾斜角θは30″以下にしておくのが
よい。
A hole mold 9 for molding the outer peripheral side of the molded product is installed at the press center of the base frame l, and the hole mold 9 has an upper hole 10 for molding the outer peripheral side of the flange part and an upper hole part 10 for molding the outer peripheral side of the cylindrical body. A molding hole 13 is formed in a penetrating shape and is connected to a pilot hole portion 11 for molding via a tapered portion 12. The upper die base 7 is slidably inserted into the upper hole 10. still,
The inclination angle θ of the tapered portion 12 is preferably 30″ or less.

前記下孔部11には成形品下面を成形するための下型1
4が摺動自在に挿着され、該下型14はベースフレーム
1のプレス中心に開設された案内孔に装着された支持棒
16を介して油圧作動の受圧シリンター17のロンドに
連結されている。受圧シリンダー17の下端からは位置
表示棒18が突出しており、シリンダーロンドの上下動
に従って動.き、ロンド位置ひいては下型14の位置は
センサー19, 20. 21によって知られる。19
は成形品取出位置検出用、20は成形品下部成形位置検
出用、2lは下限位置検出用の各センサーである。
A lower mold 1 for molding the lower surface of the molded product is provided in the lower hole 11.
4 is slidably inserted, and the lower die 14 is connected to the rond of a hydraulically operated pressure receiving cylinder 17 via a support rod 16 attached to a guide hole formed in the press center of the base frame 1. . A position display rod 18 protrudes from the lower end of the pressure receiving cylinder 17 and moves according to the vertical movement of the cylinder rod. The rond position and the position of the lower mold 14 are determined by sensors 19, 20. Known by 21. 19
20 is a sensor for detecting a molded product removal position, 20 is a sensor for detecting a lower molding position of a molded product, and 2l is a sensor for detecting a lower limit position.

前記受圧シリンダー17は、上昇用切替弁23、下降用
切替弁24、および逆止弁25.26 、リリーフ弁2
7等からなる油圧回路22によって制御され、両切替弁
23.24は制御装置(図示省略)からの出力によって
作動する。
The pressure receiving cylinder 17 includes an ascending switching valve 23, a descending switching valve 24, check valves 25 and 26, and a relief valve 2.
The switching valves 23 and 24 are controlled by a hydraulic circuit 22 consisting of components such as 7, etc., and both switching valves 23 and 24 are operated by outputs from a control device (not shown).

次に、上記装置を用いて、フランジ付筒状成形品の戊形
方法について説明する。
Next, a method for forming a flanged cylindrical product using the above-mentioned apparatus will be described.

まず、第1図のように可動部材を各初期位置に配置する
。すなわち、ヘッドフレーム2を上昇端とし、下孔部l
l内の下型14を成形品下部成形位置とする。このとき
、センサー20がその位置を検出する。
First, the movable members are placed at each initial position as shown in FIG. That is, the head frame 2 is the rising end, and the lower hole portion l
The lower mold 14 in the lower part 1 is used as the molding position for the lower part of the molded product. At this time, the sensor 20 detects the position.

次に、第2図に示すように、上孔部10にビレット素材
30を装入し、上型5を下降する。素材の成形に従って
加圧力が上昇する。この加圧力は下型14を介して受圧
シリンダーl7が担持している。成形品下部31が成形
完了すると成形圧力は最高圧に達する。このとき、素材
の残部32は上孔部10内周面と上型凸部6外周面との
間に収納された状態となっている。尚、素材としては主
としてN合金が使用され、この場合250〜450゜C
に予熱される。
Next, as shown in FIG. 2, the billet material 30 is charged into the upper hole 10, and the upper die 5 is lowered. The pressing force increases as the material is shaped. This pressurizing force is carried by the pressure receiving cylinder 17 via the lower die 14. When the molding of the lower part 31 of the molded product is completed, the molding pressure reaches the maximum pressure. At this time, the remaining portion 32 of the material is housed between the inner circumferential surface of the upper hole 10 and the outer circumferential surface of the upper mold protrusion 6. In addition, N alloy is mainly used as the material, and in this case, the temperature is 250 to 450°C.
is preheated to.

一方、受圧シリンダー17の油圧回路のリリーフ弁27
には、前記最高圧もしくはそれよりやや高い圧力(以下
、設定受圧力という。)がセットされている。このため
、上型5を更に下降させると、圧油がリリーフ弁27よ
りリークして受圧シリンダー17は下降可能となる。従
って、素材残部32は、第3図に示すように、下孔部上
端周縁Pと上型凸部6外周面との隙間から押出され、成
形品の筒状本体周側壁33が成形される。
On the other hand, the relief valve 27 of the hydraulic circuit of the pressure receiving cylinder 17
is set to the maximum pressure or a pressure slightly higher than the maximum pressure (hereinafter referred to as set receiving pressure). Therefore, when the upper die 5 is further lowered, pressure oil leaks from the relief valve 27, and the pressure receiving cylinder 17 becomes able to be lowered. Therefore, as shown in FIG. 3, the remaining material 32 is extruded from the gap between the upper edge P of the lower hole and the outer circumferential surface of the upper mold convex part 6, and a cylindrical body circumferential side wall 33 of the molded product is formed.

成形完了後、上型5を上昇させると共に、上昇用切替弁
23を作動させて受圧シリンダ−17を上昇させ、上型
5を成形品取出位置まで押し上げて成形孔13内の成形
品を取出す。尚、制御装置からの上昇用切替弁23への
作動出力は、成形品取出位置検出用センサーl9からの
検出信号により停止される。成形品取出後、下降用切替
弁24を作動して、下型l4を成形品下部成形位置まで
下降させる。下降用切替弁24の作動出力はセンサー2
0からの検出信号により停止される。
After the molding is completed, the upper mold 5 is raised, and the lifting switching valve 23 is operated to raise the pressure receiving cylinder 17, the upper mold 5 is pushed up to the molded product removal position, and the molded product in the molding hole 13 is taken out. Note that the operation output from the control device to the ascending switching valve 23 is stopped by a detection signal from the molded product removal position detection sensor 19. After taking out the molded product, the lowering switching valve 24 is operated to lower the lower mold 14 to the lower molding position of the molded product. The operating output of the lowering switching valve 24 is determined by the sensor 2.
It is stopped by the detection signal from 0.

尚、成形品下部の成形完了後、リリーフ弁27の入力側
ライン28にプレッシャースイッチを接続しておき、該
スイッチに設定受圧力をセットし、該スイッチからの信
号により下降用切替弁24を作動させ、成形品の押出速
度以上の速度で下型14を下限位置(第3図中2点鎖線
位置)まで下降させてもよい。この場合、主シリンダー
3を前記プレッシャースイッチの信号によりクローズド
センター形の3位置切替弁等を介して一旦停止した後、
下型14の下限位置検出センサー2lからの出力信号に
より、再び主シリンダー3ひいては上型5を下降させて
もよい。
After the molding of the lower part of the molded product is completed, a pressure switch is connected to the input line 28 of the relief valve 27, the set receiving pressure is set to the switch, and the lowering switching valve 24 is activated by the signal from the switch. The lower mold 14 may be lowered to the lower limit position (the position shown by the two-dot chain line in FIG. 3) at a speed higher than the extrusion speed of the molded product. In this case, after the main cylinder 3 is temporarily stopped by a signal from the pressure switch via a closed center type 3-position switching valve,
The main cylinder 3 and thus the upper mold 5 may be lowered again based on the output signal from the lower limit position detection sensor 2l of the lower mold 14.

ところで、本発明の成形方法を実施するに際しては、上
記成形装置を必ずしも必要としない。すなわち、成形品
の下部を第2図と同様にして加圧成形した後、該中間体
を第4図に示すように別の装置で押出し成形してもよい
。この場合、第2図において、下型は下降する必要がな
く、従来と同様の装置を使用するζとができる。また、
第4図において、9^は上孔部10A,テーパ一部12
A 、下孔部11Aが連成された成形孔13Aを有する
孔型であり、成形孔13Aには孔型9^に対して固定さ
れた内周面成形用マンドレル35が同心状に架設されて
おり、5Aは筒状の押出用上型である。尚、マンドレル
35は、デッドメタルの発生防止のため、下孔部上端周
縁Pがマンドレル先端部のRの範囲内になるように′設
置するのがよい。
By the way, when carrying out the molding method of the present invention, the above-mentioned molding apparatus is not necessarily required. That is, after the lower part of the molded product is pressure-molded in the same manner as shown in FIG. 2, the intermediate body may be extruded using a separate device as shown in FIG. In this case, in FIG. 2, the lower die does not need to be lowered, and the same device as in the prior art can be used. Also,
In Fig. 4, 9^ indicates the upper hole portion 10A and the tapered portion 12.
A is a hole mold having a molding hole 13A in which a lower hole portion 11A is connected, and an inner circumferential surface molding mandrel 35 fixed to the hole mold 9^ is installed concentrically in the molding hole 13A. 5A is a cylindrical upper mold for extrusion. In order to prevent the generation of dead metal, the mandrel 35 is preferably installed such that the upper edge P of the lower hole portion is within the range R of the tip of the mandrel.

(発明の効果) 以上説明した通り、本発明の成形方法によれば、まず成
形品の下部を加圧成形した後、筒状本体の周側壁を押出
成形するので、筒状本体の肉厚が薄くてもフランジ部に
亀裂を生じることなく成形することができ、成形品の加
工代を小さくすることができるため歩留りの向上を図る
ことができる。
(Effects of the Invention) As explained above, according to the molding method of the present invention, the lower part of the molded product is first pressure-formed, and then the peripheral side wall of the cylindrical body is extruded, so that the wall thickness of the cylindrical body can be reduced. Even if the molded product is thin, it can be molded without cracking the flange portion, and the machining allowance for the molded product can be reduced, leading to an improvement in yield.

しかも、成形圧力も全体を加圧成形する場合に比べて小
さくて済み、金型の摩耗、損傷,を低減することができ
る。
Moreover, the molding pressure can be lower than that in the case of pressure molding the entire mold, and wear and damage to the mold can be reduced.

また、本発明の成形装置によると、1つの金型で、上型
の1ストロークにより所望の成形品が1度に成形するこ
とができ、生産性に優れる。
Further, according to the molding apparatus of the present invention, a desired molded product can be molded at once with one stroke of the upper mold, resulting in excellent productivity.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明を実施するための成形装置の一例を示す
全体構或図、第2図および第3図は同底形装置の要部断
面図を示し、第2図は成形品下部成形完了状態における
断面図、第3図は成形品全体の成形完了状態における断
面図であり、第4図は他の成形装置における筒状本体周
側壁の押出成形開始時における成形型断面図、第5図お
よび第6図は従来の成形装置の要部断面図、第7図はフ
ランジ付薄肉筒状製品の断面図を示す。 4・・・加圧ステム、5・・・上型、9・・・孔型、1
0・・・上孔部、11・・・下孔部、13・・・成形孔
、14・・・下型、22・・・油圧回路。 ・第 7 図
FIG. 1 is a diagram showing the overall structure of an example of a molding device for carrying out the present invention, FIGS. 2 and 3 are sectional views of essential parts of the same bottom-shaped device, and FIG. 3 is a sectional view of the entire molded product in a completed state; FIG. 4 is a sectional view of the mold at the start of extrusion of the peripheral side wall of the cylindrical body in another molding device; FIG. 6 and 6 are sectional views of essential parts of a conventional molding device, and FIG. 7 is a sectional view of a flanged thin-walled cylindrical product. 4... Pressure stem, 5... Upper mold, 9... Hole mold, 1
0... Upper hole portion, 11... Lower hole portion, 13... Molding hole, 14... Lower mold, 22... Hydraulic circuit.・Figure 7

Claims (2)

【特許請求の範囲】[Claims] (1)筒状本体の上端部外周縁にフランジ部が凸設され
たフランジ付筒状成形品の成形方法であって、 フランジ部外周側面成形用の上孔部と筒状本体外周側面
成形用の下孔部とが貫通状に連成された成形孔に素材を
装入し、前記上孔部に挿着されたフランジ上端面および
成形品内周面成形用の上型と前記下孔部に挿着された成
形品下面成形用の下型との間で加圧成形して成形品下部
を成形した後、上型を下降させて筒状本体の周側壁を下
孔部内に押出し成形することを特徴とするフランジ付筒
状成形品の成形方法。
(1) A method for molding a flanged cylindrical molded product having a flange protruding from the outer periphery of the upper end of a cylindrical body, comprising an upper hole for forming the outer periphery of the flange and an upper hole for forming the outer periphery of the cylindrical body. A material is charged into a forming hole that is connected to the lower hole in a through-hole, and the upper mold for molding the upper end surface of the flange inserted into the upper hole and the inner peripheral surface of the molded product and the lower hole. After forming the lower part of the molded product by pressure forming with the lower mold inserted into the lower mold for molding the lower surface of the molded product, the upper mold is lowered and the peripheral side wall of the cylindrical body is extruded into the prepared hole. A method for forming a flanged cylindrical product, characterized by:
(2)筒状本体の上端部外周縁にフランジ部が凸設され
たフランジ付筒状成形品の成形装置であって、 フランジ部外周側面成形用の上孔部(10)と筒状本体
外周側面成形用の下孔部(11)とが貫通状に連成され
た成形孔(13)を有する孔型(9)と、前記上孔部(
10)に摺動自在に挿着されてフランジ上端面および成
形品内周面を成形するための上型(5)と、前記下孔部
(11)に摺動自在に挿着されて製品下面を成形するた
めの下型(14)とを備え、 前記上型(5)は加圧ステム(4)に取付けられて成形
孔(13)の上孔部(10)内を加圧昇降自在とされ、
前記下型(14)は油圧シリンダー(17)により下孔
部(11)内の成形品下部成形位置と成形完了後の成形
品の存する位置より下方の下限位置と成形品取出位置と
の間で移動停止自在とされ、成形品下部成形時に下型(
14)を成形品下部成形位置に固定し、その後上型(5
)の下降により押出成形された成形品と共にあるいは成
形品の押出速度以上の速度で下型(14)を下降させる
油圧回路(22)を備えたことを特徴とするフランジ付
筒状成形品の成形装置。
(2) A molding device for a flanged cylindrical molded product in which a flange portion is protruded on the outer periphery of the upper end of a cylindrical body, the upper hole portion (10) for forming the outer periphery side of the flange portion and the outer periphery of the cylindrical body. A hole mold (9) having a forming hole (13) which is connected in a penetrating manner with a lower hole portion (11) for side molding, and the upper hole portion (11) for side molding.
10) for molding the upper end surface of the flange and the inner circumferential surface of the molded product; and a lower mold (14) for molding, and the upper mold (5) is attached to a pressure stem (4) and can be moved up and down under pressure inside the upper hole (10) of the molding hole (13). is,
The lower mold (14) is moved by a hydraulic cylinder (17) between the lower molding position of the molded product in the lower hole (11), the lower limit position below the position where the molded product exists after molding is completed, and the molded product removal position. The movement can be stopped freely, and the lower mold (
14) is fixed at the lower molding position of the molded product, and then the upper mold (5
) is provided with a hydraulic circuit (22) that lowers a lower mold (14) together with the extruded molded product or at a speed higher than the extrusion speed of the molded product. Device.
JP24561089A 1989-09-21 1989-09-21 Method and device for forming cylindrically molded forming body with flange Pending JPH03106532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24561089A JPH03106532A (en) 1989-09-21 1989-09-21 Method and device for forming cylindrically molded forming body with flange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24561089A JPH03106532A (en) 1989-09-21 1989-09-21 Method and device for forming cylindrically molded forming body with flange

Publications (1)

Publication Number Publication Date
JPH03106532A true JPH03106532A (en) 1991-05-07

Family

ID=17136267

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24561089A Pending JPH03106532A (en) 1989-09-21 1989-09-21 Method and device for forming cylindrically molded forming body with flange

Country Status (1)

Country Link
JP (1) JPH03106532A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001082308A1 (en) * 2000-04-25 2001-11-01 Japan Casting & Forging Corporation Radioactive substance containment vessel, and radioactive substance containment vessel producing device and producing method
JP2006007260A (en) * 2004-06-24 2006-01-12 Kobe Steel Ltd Method for producing cylindrical member or cylindrical member with bottom
WO2018092890A1 (en) * 2016-11-18 2018-05-24 有限会社リナシメタリ Forging method, forge molding device, and forged curved-tooth gear

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001082308A1 (en) * 2000-04-25 2001-11-01 Japan Casting & Forging Corporation Radioactive substance containment vessel, and radioactive substance containment vessel producing device and producing method
US7176472B2 (en) 2000-04-25 2007-02-13 Mitsubishi Heavy Industries Ltd. Radioactive substance container, manufacturing apparatus thereof and manufacturing method thereof
CN1302872C (en) * 2000-04-25 2007-03-07 三菱重工业株式会社 Metal blank for thermal expansion forming
US7462853B2 (en) 2000-04-25 2008-12-09 Mitsubishi Heavy Industries, Ltd. Radioactive substance containment vessel, and radioactive substance containment vessel producing device and producing method
US7485884B2 (en) 2000-04-25 2009-02-03 Mitsubishi Heavy Industries Ltd. Radioactive substance container, manufacturing apparatus thereof and manufacturing method thereof
US8661867B2 (en) 2000-04-25 2014-03-04 Mitsubishi Heavy Industries, Ltd. Radioactive substance container, manufacturing apparatus thereof and manufacturing method thereof
JP2006007260A (en) * 2004-06-24 2006-01-12 Kobe Steel Ltd Method for producing cylindrical member or cylindrical member with bottom
WO2018092890A1 (en) * 2016-11-18 2018-05-24 有限会社リナシメタリ Forging method, forge molding device, and forged curved-tooth gear
JPWO2018092890A1 (en) * 2016-11-18 2019-10-17 有限会社リナシメタリ FORGING METHOD, FORGING MOLDING DEVICE, AND FORGED BENDED GEAR GEAR

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