JP2692365B2 - Press processing device for press-formed products with negative angle shape - Google Patents
Press processing device for press-formed products with negative angle shapeInfo
- Publication number
- JP2692365B2 JP2692365B2 JP27527490A JP27527490A JP2692365B2 JP 2692365 B2 JP2692365 B2 JP 2692365B2 JP 27527490 A JP27527490 A JP 27527490A JP 27527490 A JP27527490 A JP 27527490A JP 2692365 B2 JP2692365 B2 JP 2692365B2
- Authority
- JP
- Japan
- Prior art keywords
- press
- negative angle
- mold
- processing
- die
- 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 - Fee Related
Links
Landscapes
- Press Drives And Press Lines (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、負角形状を有するプレス成形品の順送可能
なプレス加工装置に関する。TECHNICAL FIELD The present invention relates to a press working apparatus capable of progressively transferring a press-formed product having a negative angle shape.
従来、フィードラインより上方に負角形状を有するプ
レス成形品の順送加工は、負角形状が与えられる部分
（以下、負角部）に内型を使用すると、プレス加工後に
内型を抜くことができないために、内型を使用しないで
外型のみでプレス加工し、プレス加工後次工程にプレス
成形品を搬送している。Conventionally, when progressively processing a press-formed product having a negative angle shape above the feed line, if the inner die is used in the portion to which the negative angle shape is given (hereinafter, negative angle portion), the inner die can be removed after the press working. Therefore, the inner mold is not used and only the outer mold is pressed, and the pressed product is conveyed to the next step after the press working.
前述のように、フィードラインより上方に負角形状を
有するプレス成形品の順送加工は、内型を使用しない外
型のみの加工のために、負角部に充分な塑性変形が与え
られない。したがって負角部の加工精度が悪く、負角部
に高精度を必要とするプレス成形品を製作することがで
きない。As described above, in progressive processing of a press-formed product having a negative angle shape above the feed line, sufficient plastic deformation is not given to the negative angle portion because the outer mold does not use the inner mold. . Therefore, the processing accuracy of the negative angle portion is poor, and it is not possible to manufacture a press-formed product that requires high accuracy in the negative angle portion.
本発明の目的は、負角部を高精度に加工することがで
き、プレス成形品の順送が可能なプレス加工装置を提供
することである。An object of the present invention is to provide a press working apparatus capable of processing a negative angle portion with high accuracy and capable of progressively transferring press-formed products.
〔課題を解決するための手段〕 前述の目的を達成するために、本発明は、２つの可動
の外型と、加工部材の負角部を形成するため前記外型の
動作方向と垂直な方向に可動な内型と、前記外型と前記
内型とを加工位置に押圧する手段とを有し、さらに加工
後、前記押圧手段が開放された時、前記内型を加工部材
と共に加工部材の搬送位置へ動かす手段が設けられてい
ることを特徴とする負角形状を有するプレス成形品のプ
レス加工装置を提供する。[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides two movable outer dies and a direction perpendicular to the operation direction of the outer dies for forming a negative angle portion of a processing member. A movable inner mold, and means for pressing the outer mold and the inner mold to a processing position, and after further processing, when the pressing means is opened, the inner mold together with the processing member Provided is a press working apparatus for a press-formed product having a negative angle shape, which is provided with a means for moving it to a transfer position.
加工部材は、前記内型と前記外型とにより高精度で負
角形状に加工され、次に前記加工部材が前記内型の回り
に負角形状に曲げられることを利用して、前記内型と共
に前記加工部材を加工部材の搬送位置に動かす。The processed member is processed into a negative angle shape with high precision by the inner mold and the outer mold, and then the processed member is bent into a negative angle shape around the inner mold to utilize the inner mold. At the same time, the processing member is moved to the conveyance position of the processing member.
加工部材の負角部は、スプリングバックにより前記内
型との間に若干の隙間が生じ、加工部材は、加工部材の
幅方向に搬送可能となる。At the negative angle portion of the processed member, a slight gap is formed between the processed member and the inner die, so that the processed member can be conveyed in the width direction of the processed member.
第１図において、左側半分（ａ）は、加工部材２の負
角形状の成形が完了した後に上型台１が上死点とされた
時の状態を示し、右側半分（ｂ）は、加工部材２の負角
形状の成形が完了した直後で上型台１が下死点のままの
時の状態を示す。本明細書中において、負角形状とは、
第１図に示す加工部材２の部分円形状のように、加工部
材の一部分同士（第１図の加工部材２においては両端
部）を互いに接近させることにより形成された加工部材
の内側の空間を有し、接近された一部分同士の接近幅
（第１図の加工部材２においては両端部の間の距離）
が、この接近幅と平行な方向における加工部材の内側の
空間の最大幅（第１図の加工部材２においては部分円形
状の直径に相当）より小さくされた形状である。In FIG. 1, the left half (a) shows the state when the upper mold base 1 is set to the top dead center after the negative-angled shape forming of the processing member 2 is completed, and the right half (b) is the processing. The state where the upper mold base 1 is still at the bottom dead center immediately after the negative-angle-shaped molding of the member 2 is completed is shown. In the present specification, the negative angle shape means
As in the partial circular shape of the processed member 2 shown in FIG. 1, a space inside the processed member formed by bringing parts of the processed member (both ends in the processed member 2 of FIG. 1) close to each other is formed. The width of the two parts that are close to each other (the distance between both ends in the processing member 2 in FIG. 1)
However, the shape is smaller than the maximum width (corresponding to the diameter of the partial circular shape in the processing member 2 in FIG. 1) of the space inside the processing member in the direction parallel to the approach width.
先端部が、加工部材２に所望の負角形状を与えるよう
に作られた内型３は、内型ホルダ４にボルト５で固定さ
れている。内型ホルダ４は、後述の固定カム6,7の貫通
穴を有し、その外側にガイドポスト8,9が取付けられて
いる。ガイドポスト8,9は、下型台10の凹みに圧入され
たブッシュ11,12により上下方向に摺動可能であり、そ
れに伴い内型３が所定位置で上下動可能となる。またガ
イドポスト8,9の先端部と下型台10の凹みの底部との間
には、弾性体13,14が設けられ、ガイドポスト8,9を上方
向に付勢している。しかしガイドポスト8,9の最上点
は、ガイドポスト8,9に設けられている肩部と、下型台
に固定されているストッパ15,16とにより決定され、最
下点は後述の下型21の最下点により決定される。The inner mold 3 whose tip is formed so as to give the processed member 2 a desired negative angle shape is fixed to the inner mold holder 4 with bolts 5. The inner holder 4 has through holes for fixed cams 6 and 7, which will be described later, and guide posts 8 and 9 are attached to the outer sides thereof. The guide posts 8 and 9 can be slid vertically by the bushes 11 and 12 which are press-fitted into the recesses of the lower mold base 10, and accordingly, the inner mold 3 can be vertically moved at a predetermined position. In addition, elastic bodies 13 and 14 are provided between the tip ends of the guide posts 8 and 9 and the bottoms of the recesses of the lower mold base 10 to urge the guide posts 8 and 9 upward. However, the uppermost points of the guide posts 8 and 9 are determined by the shoulders provided on the guide posts 8 and 9 and the stoppers 15 and 16 fixed to the lower mold base, and the lowermost points are the lower molds described below. Determined by the lowest point of 21.
内型ホルダ４の上面と当接する先行押えブロック17
は、上部に凹みを有し、この凹みに凹みの深さより長い
弾性体18が設けられている。先行押えブロック17には、
スリーブ19がボルト20によって取付けられ、このスリー
ブ19の肩部により弾性体18の上面が上型台１の下面に当
接するように、上型台１に釣り下げられる。先行押えブ
ロック17は、弾性体18を変形されることによって、この
スリーブ19により上型台１に対して上下方向に摺動可能
である。上型台１には、内型ホルダ４の前述の穴を貫通
して下方向に延在する固定カム6,7が設けられている。
固定カム6,7の先端部は、互いに対向する傾斜面6a,7aを
有する。Preceding presser block 17 that contacts the upper surface of the inner die holder 4
Has an indentation in its upper part, and an elastic body 18 longer than the depth of the indentation is provided in this indentation. The presser foot block 17
A sleeve 19 is attached by a bolt 20, and the shoulder of the sleeve 19 hangs the upper body 1 so that the upper surface of the elastic body 18 abuts the lower surface of the upper die table 1. By deforming the elastic body 18, the preceding pressing block 17 can slide in the up-down direction with respect to the upper mold base 1 by the sleeve 19. The upper mold base 1 is provided with fixed cams 6 and 7 which extend downward through the above holes of the inner mold holder 4.
The tip ends of the fixed cams 6 and 7 have inclined surfaces 6a and 7a facing each other.
下型台10は凹形状を有し、その内側側面10a,10bを固
定カム6,7が上下方向に摺動する。下型台10の凹形状の
底部には、下型21が下型ホルダ22を介して取付けられ
る。下型21の底面の一部は、下型台10の前記底部にさら
に設けられた凹みに挿入された弾性体23の上面と当接
し、上方向に付勢されている。下型21の最上点は、下型
21の肩部と下型ホルダ22の肩部が当接する位置であり、
又最下点は、下型21は底部の弾性体23と当接していない
部分が、下型台10の凹形状の底部と当接する位置であっ
て、この位置は、加工部材２の加工位置である。The lower mold base 10 has a concave shape, and the fixed cams 6 and 7 slide vertically on the inner side surfaces 10a and 10b thereof. A lower mold 21 is attached to the concave bottom of the lower mold base 10 via a lower mold holder 22. A part of the bottom surface of the lower mold 21 abuts on the upper surface of the elastic body 23 inserted into the recess further provided in the bottom portion of the lower mold base 10 and is biased upward. The highest point of lower mold 21 is the lower mold
The position where the shoulder of 21 and the shoulder of the lower die holder 22 abut,
Further, the lowest point is a position where a portion of the lower die 21 which is not in contact with the elastic body 23 is in contact with the concave bottom portion of the lower die base 10, and this position is the processing position of the processing member 2. Is.
下型ホルダ22の上面を水平方向に摺動する外型24,25
は、それぞれ固定カム6,7の傾斜面6a,7aと当接する傾斜
面24a,25aを有し、また、加工部材２を所望の形状に加
工するための加工面24b,25bを有する。外型24,25は、そ
れぞれ図示されないバネ等により加工部材２から離れる
方向に付勢されている。Outer mold 24, 25 sliding horizontally on the upper surface of the lower mold holder 22
Has inclined surfaces 24a, 25a that come into contact with the inclined surfaces 6a, 7a of the fixed cams 6, 7, respectively, and also has processing surfaces 24b, 25b for processing the processing member 2 into a desired shape. The outer molds 24, 25 are biased in the direction away from the processing member 2 by springs or the like (not shown).
本実施例のプレス加工装置は、以下のように動作す
る。The press working apparatus of this embodiment operates as follows.
まず、上型台１が上死点の時に、ある程度の形状に前
加工された加工部材２（形状を図示せず）を下型21上に
セットする。次に上型台１を徐々に下降させると、先行
押えブロック17の下面が内型ホルダ４の上面と当接し、
次に内型ホルダ４の両脇に設けられたガイドポスト8,9
が下型台10に圧入されたブッシュ11,12に沿って、弾性
体13,14を圧縮しながら下降し、それに伴い内型ホルダ
４に取付けられた内型３が所定位置に下降する。内型３
は、下型21上の加工部材２に当接し、加工部材２を下型
21と共に加工位置まで弾性体23を圧縮しながら押し下げ
る。First, when the upper die base 1 is at the top dead center, the processing member 2 (the shape of which is not shown) pre-processed to some extent is set on the lower die 21. Next, when the upper mold base 1 is gradually lowered, the lower surface of the preceding presser block 17 comes into contact with the upper surface of the inner mold holder 4,
Next, the guide posts 8, 9 provided on both sides of the inner mold holder 4
Moves down along the bushes 11, 12 pressed into the lower mold base 10 while compressing the elastic bodies 13, 14, and accordingly the inner mold 3 attached to the inner mold holder 4 moves down to a predetermined position. Inner mold 3
Abuts the processing member 2 on the lower die 21 to move the processing member 2 to the lower die.
Along with 21, the elastic body 23 is pushed down to the processing position while being compressed.
それと同時に、上型台１に取付けられた固定カム6,7
の先端傾斜面6a,7aが、外型24,25の傾斜面24a,25aと当
接する。さらに上型台１を下降させると、先行押えブロ
ック17の凹みに設けられた弾性体18が圧縮し始め、固定
カム6,7が外型24,25を加工部材２の方向に動かす。最終
的に、外型24,25は、加工部材２を内型３と下型21に押
圧し、加工部材２が所望の負角形状を有する形に加工さ
れる。この時先行押えブロック17と上型台１は、直接接
触しないようになっており、それにより外型24,25が十
分に加工部材２を押圧できる。この時の本実施例のプレ
ス加工装置の状態が、第１図（ｂ）に示されている。At the same time, the fixed cams 6 and 7 attached to the upper mold stand 1
The tip inclined surfaces 6a, 7a contact the inclined surfaces 24a, 25a of the outer molds 24, 25. When the upper die table 1 is further lowered, the elastic body 18 provided in the recess of the preceding pressing block 17 starts to be compressed, and the fixed cams 6 and 7 move the outer dies 24 and 25 toward the processing member 2. Finally, the outer dies 24, 25 press the processing member 2 against the inner die 3 and the lower mold 21, and the processing member 2 is processed into a shape having a desired negative angle shape. At this time, the preceding pressing block 17 and the upper mold base 1 are not in direct contact with each other, so that the outer molds 24 and 25 can sufficiently press the processing member 2. The state of the press working apparatus of this embodiment at this time is shown in FIG. 1 (b).
プレス加工後、上型台１を上昇させることにより、内
型ホルダ４及び外型24,25への押圧が解除される。外型2
4,25は、図示されないバネ等により、加工部材２から離
れる方向に動かされる。一方、内型ホルダ４と内型３と
加工部材２と下型21は共に、ガイドポスト8,9の先端部
に設けられた弾性体13,14及び下型21の下面と当接する
弾性体23の復元力により上方向に移動する。下型21のス
トロークl2は、ガイドポスト8,9のストロークl1より小
さいため、まず下型21が停止する。加工部材２は、内型
３の回りに負角形状に加工されているために、内型ホル
ダ４と内型３と加工部材２は、さらにガイドポスト8,9
のストロークl1に達するまで上昇する。この時の本実施
例のプレス装置の状態が、第１図（ａ）に示されてい
る。After pressing, the upper die base 1 is raised to release the pressure on the inner die holder 4 and the outer die 24, 25. External type 2
4, 25 are moved in a direction away from the processing member 2 by a spring or the like (not shown). On the other hand, the inner die holder 4, the inner die 3, the processing member 2, and the lower die 21 are all elastic bodies 13 and 14 provided at the tips of the guide posts 8 and 9 and the elastic body 23 that comes into contact with the lower surface of the lower die 21. It moves upward due to the restoring force of. Since the stroke l 2 of the lower die 21 is smaller than the stroke l 1 of the guide posts 8 and 9, the lower die 21 first stops. Since the processing member 2 is processed into a negative angle shape around the inner mold 3, the inner mold holder 4, the inner mold 3, and the processing member 2 are further processed by the guide posts 8, 9.
Ascend until stroke 1 is reached. The state of the pressing apparatus of this embodiment at this time is shown in FIG.
加工部材２の負角部と内型３との間に、スプリングバ
ックにより若干の隙間が生じる。また下型21の上面と加
工部材２の間には、前記ストロークの差分（l1−l2）だ
けの隙間が生じる。したがって、加工部材２は、その幅
方向に、すなわち、第１図の前後方向（第１図の紙面に
対する垂直方向）に内型３から抜くことが可能であり、
この高さに設定された搬送装置（図示されていない）に
より、次工程に向って搬送可能となる。A slight gap is created between the negative angle portion of the processed member 2 and the inner mold 3 due to springback. Further, between the upper surface of the lower die 21 and the processed member 2, a gap corresponding to the difference between the strokes (l 1 -l 2 ) is generated. Therefore, the processed member 2 can be removed from the inner mold 3 in the width direction thereof, that is, in the front-back direction of FIG. 1 (perpendicular to the paper surface of FIG. 1),
The carrying device (not shown) set to this height enables carrying to the next process.
なお、本実施例の加工部材２は、足部2aを有し、この
足部2aが下型21と接触している。したがって内型３によ
り加工部材２を下型21から取り外す際の足部2aの変形を
抑えるために、加工部材２のなるべく少ない移動が好ま
しい。しかし加工部材２の搬送には、ある程度の高さが
必要であり、そのため下型21は、上方向に可動となって
いる。このように、下型21の可動構造は、本実施例の加
工部材のような形状の時のみ必要である。The processed member 2 of this embodiment has a foot 2a, and the foot 2a is in contact with the lower die 21. Therefore, in order to suppress the deformation of the foot portion 2a when the working member 2 is removed from the lower mold 21 by the inner mold 3, it is preferable to move the working member 2 as little as possible. However, the processing member 2 needs to be conveyed to a certain height, so that the lower mold 21 is movable upward. As described above, the movable structure of the lower mold 21 is necessary only when the lower mold 21 has the same shape as the processed member of this embodiment.
本発明によれば、内型を使用して負角形状を加工する
ため、加工部材の負角部が高精度に加工することがで
き、さらにこの負角部を利用して、内型と共に加工部材
を搬送位置に移動させ、加工部材の次工程への搬送を行
なうこともできる。According to the present invention, since a negative angle shape is processed by using the inner die, the negative angle portion of the processing member can be machined with high accuracy, and further, the negative angle portion is used to perform machining with the inner die. It is also possible to move the member to the transfer position and transfer the processed member to the next step.
第１図は、本発明によるプレス加工装置の実施例を示す
断面図である。 １…上型台、２…加工部材、３…内型、6,7…固定カ
ム、8,9…ガイドポスト、10…下型台、13,14,18,23…弾
性体、21…下型、24,25…外型。FIG. 1 is a sectional view showing an embodiment of a press working apparatus according to the present invention. DESCRIPTION OF SYMBOLS 1 ... Upper mold stand, 2 ... Processing member, 3 ... Inner mold, 6,7 ... Fixed cam, 8,9 ... Guide post, 10 ... Lower mold stand, 13,14,18,23 ... Elastic body, 21 ... Bottom Mold, 24,25 ... Outer mold.
Claims (1)
形成するため前記外型の動作方向と垂直な方向に可動な
内型と、前記外型と前記内型とを加工位置に押圧する手
段とを有し、さらに加工後前記押圧手段が開放された
後、前記内型を加工部材と共に加工部材の搬送位置へ動
かす手段が設けられていることを特徴とする負角形状を
有するプレス成形品のプレス加工装置。1. A two movable outer die, an inner die movable in a direction perpendicular to a movement direction of the outer die for forming a negative angle portion of a working member, and the outer die and the inner die are machined. A negative angle shape having means for pressing to a position, and further comprising means for moving the inner die together with the processing member to the conveying position of the processing member after the pressing means is opened after processing. Of a press-formed product having a press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27527490A JP2692365B2 (en) | 1990-10-16 | 1990-10-16 | Press processing device for press-formed products with negative angle shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27527490A JP2692365B2 (en) | 1990-10-16 | 1990-10-16 | Press processing device for press-formed products with negative angle shape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04157097A JPH04157097A (en) | 1992-05-29 |
| JP2692365B2 true JP2692365B2 (en) | 1997-12-17 |
Family
ID=17553143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27527490A Expired - Fee Related JP2692365B2 (en) | 1990-10-16 | 1990-10-16 | Press processing device for press-formed products with negative angle shape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2692365B2 (en) |
-
1990
- 1990-10-16 JP JP27527490A patent/JP2692365B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04157097A (en) | 1992-05-29 |
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