JPH0248084Y2 - - Google Patents

Description

【考案の詳細な説明】 産業上の利用分野 この考案は板金折曲機用上刃および下駒装置に
関する。[Detailed Description of the Invention] Industrial Application Field This invention relates to an upper blade and lower piece device for a sheet metal bending machine.

従来の技術 従来第２８図に示すように板金折曲機の下駒は
構成され、板厚および折曲角などにしたがつて受
け溝の幅を変えることができるようになつてい
る。BACKGROUND ART The lower piece of a conventional sheet metal bending machine is constructed as shown in FIG. 28, and the width of the receiving groove can be changed according to the thickness of the sheet metal, the bending angle, etc.

また、実開昭60−66622号公報に記載されるよ
うに、鋭角状押し型の一側に平面状押し型を隣接
させた上型と、前記鋭角状押し型に対向する鋭角
状受け溝と平面状押し型に対向する平面状受座と
を隣接させた下型とよりなる鋼板折曲用型具が知
られている。 Further, as described in Japanese Utility Model Application Publication No. 60-66622, an upper mold having a flat pressing die adjacent to one side of the acute-angled pressing die, and an acute-angled receiving groove facing the acute-angular pressing die; BACKGROUND ART A mold for bending a steel plate is known, which includes a lower die in which a flat receiving die facing a flat pressing die is adjacent to the lower die.

考案が解決しようとする課題 第２８図に示す従来の下駒は板厚が変わる毎
に、また折曲角が異なる毎に下駒を動かして受け
溝を変える面倒があり、殊に加工途中で変換は実
際問題としてできなく一貫作業が行えなかつた。Problems to be Solved by the Invention With the conventional lower piece shown in Figure 28, it is troublesome to move the lower piece and change the receiving groove every time the plate thickness changes or the bending angle changes, especially during processing. Conversion was not possible as a practical matter, and it was not possible to carry out integrated work.

実開昭60−66622号公報に記載される公知例で
は、上型が常時鋭角状押し型と平面押し型とが隣
接して一体に形成されるから、上型の厚みが２倍
となつて、重量がかさむばかりでなく、見当付け
が困難で、加工性能が発揮できないものである。 In the known example described in Japanese Utility Model Application Publication No. 60-66622, the upper mold is always integrally formed with an acute-angled pressing mold and a flat pressing mold adjacent to each other, so the thickness of the upper mold is doubled. Not only is it heavy, it is difficult to register, and the machining performance cannot be achieved.

この考案は、従来の欠点を除去し、下駒の交換
を必要とせず、同一受け溝であらゆる折曲加工特
に一般住宅建築で要請される折曲形態の全部を加
工しようとするものである。特に上刃の形状を折
曲加工形状にしたがつて簡易に交換あるいは付加
し、軽量の上刃で正確な折曲加工作業を行えるよ
うにしたものである。 This invention aims to eliminate the drawbacks of the conventional method, eliminate the need for replacement of the lower piece, and process all kinds of bending processes, especially all the bending forms required in general residential construction, using the same receiving groove. In particular, the shape of the upper blade can be easily replaced or added according to the bending shape, so that accurate bending work can be performed with the lightweight upper blade.

課題を解決するための手段 上部が上板への取付部に、下部が所要角で正面
側と背面側とから傾斜面で尖頭に形成されると共
にその尖頭の背面を上下端を同一面に、その中間
を肉薄の偏肉に形成され、背面に補助上刃を重合
設置自在の上刃と、上半を受け台に下半を下板に
嵌挿する取付部に形成されると共に、その受け台
の上面は上開きの手前傾斜面と奥側傾斜面とで斜
面受け溝に形成され、かつその斜面受け溝の底部
に前記上刃を嵌入する垂直受け溝が前後偏心に設
けられ、さらに奥側上面に位置決め突条が設けら
れる下駒とから構成されることを特徴とする板金
折曲機用上刃および下駒装置にある。Means to solve the problem The upper part is the attachment part to the upper plate, the lower part is formed into a point with a sloped surface from the front side and the back side at the required angle, and the back side of the point is formed with the upper and lower ends on the same plane. The upper blade is formed with a thin uneven thickness in the middle, and the auxiliary upper blade can be freely installed on the back side, and the mounting part is formed to fit the upper half into a holder and the lower half into the lower plate, The upper surface of the cradle is formed into an inclined receiving groove by an upwardly opening front inclined surface and a rear inclined surface, and a vertical receiving groove into which the upper blade is inserted is provided at the bottom of the inclined receiving groove in an eccentric manner in the front and back, The present invention further provides an upper blade and lower piece device for a sheet metal bending machine, characterized in that it comprises a lower piece having a positioning protrusion on the upper surface on the back side.

作 用 この考案装置は前述のように構成されるから、
上刃は背面に補助型刃を重合して、例えば平面押
し型を設けることができ、常時は背面を薄肉とし
た軽量で折曲加工が行えるものである。また下駒
は上面の背面側に位置決め突条が設けてあるか
ら、これを案内して正確な折幅をとることがで
き、容易に加工を行えるものである。Function Since this invented device is constructed as described above,
The upper blade can be provided with an auxiliary mold blade on the back surface, for example, to provide a flat pressing mold, and the back surface is usually thin and lightweight, and bending can be performed. Furthermore, since the lower piece is provided with a positioning protrusion on the back side of the upper surface, it is possible to guide the positioning protrusion to obtain an accurate folding width, and processing can be easily performed.

実施例 以下、この考案を実施の一例である図面により
説明すると、１は上刃で、折曲機において所要ス
トロークで昇降する上板２に取付けられ、昇降作
動する。この上刃１は、第１図に示すように、側
面形状を上板２に嵌挿ねじ着される上部１ａと、
作業支持丈となる中間部１ｂと、被加工物に連接
し作業をなす下部１０とから構成されると共に、
その下部１０は作業中心線Ａ−Ａに対して前方側
へ所要角Ｂ−Ｂ線に沿つて立上る正面側傾斜面１
０１と、反対の背面側に傾斜する背面傾斜面１０
２とにより偏厚尖頭に形成され、さらに背面傾斜
面１０２に連続する上方中間部が凹陥１ｄに形成
される。Embodiment Hereinafter, this invention will be explained with reference to the drawings, which are examples of implementation. Reference numeral 1 denotes an upper blade, which is attached to an upper plate 2 that moves up and down with a required stroke in a bending machine, and moves up and down. As shown in FIG. 1, this upper blade 1 includes an upper part 1a whose side surface shape is fitted and screwed onto the upper plate 2;
It is composed of an intermediate part 1b that is a working support length, and a lower part 10 that is connected to the workpiece and performs the work, and
The lower part 10 is a front side inclined surface 1 that rises toward the front side with respect to the work center line A-A along the required angle B-B line.
01, and a rear inclined surface 10 that is inclined toward the opposite rear side.
2 is formed into an unevenly thick peak, and furthermore, the upper intermediate portion continuous with the rear inclined surface 102 is formed as a recess 1d.

また、前記上刃１背面の凹陥１ｄの上方の背面
上部１ｅと下方の背面下部１ｆとは同一面に形成
され、第１図仮線で示すように補助型刃１１を重
合して取付けが行えるようになつている。 Moreover, the upper back surface 1e above the recess 1d on the back surface of the upper blade 1 and the lower back surface 1f below are formed on the same plane, and the auxiliary blade 11 can be mounted by overlapping them as shown by the phantom lines in FIG. It's becoming like that.

下板６上に支架される下駒３はその側面からみ
て上半を、上記第１図Ａ−Ａ線の延長線である
A′−A′を第２図に示すように基準とし、それと
直角に交叉するＤ−Ｄ線に沿う上面３ａ１が形成
される方形の受け台３ａに、下半を下板６の支持
溝６ａに嵌挿される取付部３ｂに構成されると共
に、上面３ａ１に開口する垂直溝４を、上刃１の
Ａ−Ａ線に適合し、上刃１の下部１ｃが降下嵌挿
可能の前後幅に形成されると共に、その手前壁４
ａを略中心とする三角形で、Ｅ−Ｅ線に沿う手前
傾斜面３ａ２とＦ−Ｆ線に沿う奥側傾斜面３ａ３
が形成され、さらに、上面３ａ１の奥縁に沿つて
位置決め突条５が突出形成されてなるものであ
る。 The upper half of the lower piece 3 supported on the lower plate 6 when viewed from the side is an extension of the line A-A in FIG. 1 above.
With A'-A' as a reference as shown in FIG. 2, the lower half is placed in a support groove 6a of the lower plate 6 on a rectangular pedestal 3a having an upper surface 3a1 along the line D-D intersecting at right angles thereto. The vertical groove 4 opening on the upper surface 3a1 is configured in the mounting part 3b to be inserted into the upper blade 1, and has a front-rear width that matches the A-A line of the upper blade 1 and allows the lower part 1c of the upper blade 1 to be inserted downwardly. At the same time, the front wall 4
A triangular shape approximately centered at a, a front inclined surface 3a2 along the E-E line and a rear inclined surface 3a3 along the F-F line.
is formed, and furthermore, a positioning protrusion 5 is formed protrudingly along the inner edge of the upper surface 3a1.

この考案の下駒３は前記のように構成されるも
のであるから、第５図に示すように直角折７をな
すときには第６図に示すように下駒３の上面３ａ
１に板金７ａの先端縁を位置決め突条５に突当て
セツトし、例えばハンドル（図示しない）を回し
て上刃１を降下させ、直角に折曲されたところで
ハンドルを停止し、それから逆転して上刃１を上
昇離隔した後、被加工物を取り外すものである。 Since the lower piece 3 of this invention is constructed as described above, when making a right angle fold 7 as shown in FIG. 5, the upper surface 3a of the lower piece 3 is
1, set the tip edge of the sheet metal 7a against the positioning protrusion 5, lower the upper blade 1 by turning the handle (not shown), stop the handle when it is bent at a right angle, and then reverse it. After the upper blade 1 is raised and separated, the workpiece is removed.

第８図に示すはぜ折り８は、その直角折りから
さらに深く折曲した場合であつて、第９図に示す
ように板金８ａを折曲する上刃１の降下を増すこ
とによつて行えるものである。 The seam fold 8 shown in FIG. 8 is a deeper bend than the right angle fold, and can be performed by increasing the descent of the upper blade 1 that bends the sheet metal 8a, as shown in FIG. 9. It is something.

第１０図に示すダクトはぜ折り９については、
第１１図に示すように板金９ａを折り幅を広くす
るため突当部５上に先端をのせて下駒３の受け台
３ａにセツトし、次に上刃１を降下させて前記は
ぜ折り以上の広幅に折曲する。このとき下駒３の
取付部３ｂを嵌挿する下板４の支持溝６ａの幅が
広く構成してあれば、下駒３は後方側へ摺動し、
上刃１の背面と下駒３の奥壁４ｂとに間隙がで
き、円滑に折曲する。次に第１３図に示すように
板金９ａを反転し、その折曲部９ｂの端縁を下端
とし、下駒３の斜面受け溝の手前開口縁に連接し
た状態にセツトする。そして上刃１を降下させる
と、上刃１の正面側傾斜面１０１で背面より押圧
し、折曲部９ｂを本体に接近させた状態に折曲す
る。そこで、第１５図に示すように、下駒３の上
面３ａ１に折曲部９ｂを下側に、その折曲部の先
端縁が斜面受け溝の手前開口縁より内側にしてセ
ツトし、再び上刃１を降下させて折曲部９ｂを溝
内にのがし込んで本体折曲端側の背面中間より折
曲し、再び第１７図に示すように折曲部９ｂ端を
斜面受け溝の手前斜面に連結した状態で上刃１を
降下させ、前後に所要幅を２重に折曲した接手部
９ｃを有するダクトはぜ折り９に加工するもので
ある。 Regarding the duct seam fold 9 shown in Fig. 10,
As shown in FIG. 11, in order to widen the folding width, the sheet metal 9a is placed on the holder 3a of the lower piece 3 with its tip placed on the abutting part 5, and then the upper blade 1 is lowered to fold Bend it to a wider width. At this time, if the support groove 6a of the lower plate 4 into which the mounting portion 3b of the lower piece 3 is inserted is configured to have a wide width, the lower piece 3 will slide toward the rear,
A gap is created between the back surface of the upper blade 1 and the back wall 4b of the lower piece 3, allowing smooth bending. Next, as shown in FIG. 13, the sheet metal 9a is inverted and set so that the edge of the bent portion 9b is the lower end and is connected to the front opening edge of the slope receiving groove of the lower piece 3. Then, when the upper blade 1 is lowered, the front inclined surface 101 of the upper blade 1 presses from the back side and bends the bending portion 9b so as to approach the main body. Therefore, as shown in FIG. 15, set the bent part 9b on the upper surface 3a1 of the lower piece 3 with the bent part 9b on the lower side and the tip edge of the bent part inside the front opening edge of the slope receiving groove, and then raise it again. Lower the blade 1, push the bent part 9b into the groove, bend it from the middle of the back on the bent end side of the main body, and then insert the end of the bent part 9b into the slope receiving groove again as shown in Fig. 17. The upper blade 1 is lowered while connected to the front slope, and the duct is folded into a duct 9 having a joint part 9c which is folded back and forth with a required width.

最後に第１９図に示すカラクサ折りについて説
明すると、板金１０ａを折曲幅を考慮し、第２０
図に示すように、、下駒３の上面にのせ、はぜ折
り同様に折曲する。次に折曲部１０ｂを下面に下
駒３より奥側へ送り込んだ状態にセツトし、第２
３図に示すように直角折りをなす。この直角折曲
部１０ｃを下側として再び上刃１を降下して直角
以上に折曲げその最終折曲縁を下駒３の斜面受け
溝内にセツトし、その溝の手前傾斜面３ａ２と、
上刃１の正面側傾斜面１０１とで押圧折曲し、最
終折曲部１０ｄと本体１０ａを僅かな間隙を設け
た状態に重合し、全体としてカラクサ折りをなす
ものである。 Finally, to explain the Karaksa fold shown in FIG. 19, the sheet metal 10a is
As shown in the figure, place it on the upper surface of the lower piece 3 and fold it in the same way as the flap. Next, set the bending part 10b on the lower surface so that it is pushed further back than the lower piece 3, and
Make a right angle fold as shown in Figure 3. Lower the upper blade 1 again with this right-angled bent portion 10c on the lower side, bend it at a right angle or more, and set the final bent edge in the slope receiving groove of the lower piece 3, and then set the sloped surface 3a2 on the front side of the groove.
It is pressed and bent by the front side inclined surface 101 of the upper blade 1, and the final bent part 10d and the main body 10a are overlapped with a slight gap, thereby forming a crooked fold as a whole.

尚、折曲部間の間隙は、下板６の支持溝６ａを
下駒３の取付部３ｂの幅より僅かに広く構成して
おくことにより、下駒３が前方側又は後方側へ摺
動することにより構成される。 In addition, the gap between the bent parts is determined by configuring the support groove 6a of the lower plate 6 to be slightly wider than the width of the attachment part 3b of the lower piece 3, so that the lower piece 3 can slide forward or backward. It consists of:

効 果 この考案では前記のような構成の上刃と下駒と
よりなるものであるから、住宅建築で要請される
各種折曲工程を下駒を作業工程中で交換するよう
な中断作業を行うことなく、一貫した折曲加工が
でき大変に能率である。そして、上刃は背面を薄
肉としているから、日常加工はその軽量の状態で
行うことができ、特別の場合には補助型刃を重合
させることができ、各種の加工に対応できるもの
である。また、下駒の位置決め突条は背面側にあ
るので折曲加工の障害となることがなく作業能率
の向上に寄与するものである。Effects Since this invention consists of the upper blade and lower piece having the above-mentioned configuration, various bending processes required in residential construction can be interrupted by replacing the lower piece during the work process. It is extremely efficient as it allows consistent bending processing without any problems. Since the upper blade has a thin back wall, it can be used for everyday machining in its lightweight state, and in special cases, the auxiliary blade can be polymerized, making it suitable for various types of machining. In addition, since the positioning protrusion of the lower piece is on the back side, it does not become an obstacle to the bending process and contributes to improving work efficiency.

よつて、上刃は必要により補助型刃を背面に重
合し、下駒は一度セツトするだけで各種要請され
る折曲加工をできるのである。 Therefore, the upper blade can be superimposed with an auxiliary blade on the back side if necessary, and the lower piece can perform various required bending operations just by setting it once.

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

図面はこの考案の実施例を示すものであつて、
第１図は上刃および補助型刃の側面図、第２図は
下刃の側面図、第３図は折曲機に装備させた状態
の斜視図、第４図は折曲機の上板と下板とに対応
して取付けた状態を示す側面図、第５図〜第２７
図は折曲加工例を示し、第５図は直角折り例の端
面図、第６図〜第７図はその折曲工程説明図、第
８図ははぜ折り例を示す端面図、第９図は折曲工
程説明図、第１０図はダクトはぜ折り例を示す端
面図、第１１図〜第１８図はその折曲工程説明
図、第１９図はカラクサ折り例を示す端面図、第
２０図〜第２７図はその折曲工程説明図、第２８
図は従来の上刃と下駒の例を示す側面図である。 １……上刃、２……上板、３……下駒、３ａ…
…受け台、３ｂ……取付部、３ａ１……上面、３
ａ２……手前傾斜面、３ａ３……奥側傾斜面、４
……垂直溝、５……位置決め突条、１１……補助
型刃。 The drawings show an embodiment of this invention,
Figure 1 is a side view of the upper blade and auxiliary blade, Figure 2 is a side view of the lower blade, Figure 3 is a perspective view of the folding machine equipped with it, and Figure 4 is the upper plate of the folding machine. 5 to 27 are side views showing the state in which they are attached to the lower plate and the lower plate.
The figures show an example of the bending process, FIG. 5 is an end view of an example of right angle folding, FIGS. 6 to 7 are explanatory diagrams of the bending process, FIG. The figure is an explanatory diagram of the bending process, Figure 10 is an end view showing an example of duct seam folding, Figures 11 to 18 are explanatory diagrams of the bending process, and Figure 19 is an end view showing an example of duct folding. Figures 20 to 27 are explanatory diagrams of the bending process, and Figure 28
The figure is a side view showing an example of a conventional upper blade and lower piece. 1...Upper blade, 2...Upper plate, 3...Lower piece, 3a...
...Case, 3b...Mounting part, 3a1...Top surface, 3
a2... Front inclined surface, 3 a3... Back inclined surface, 4
... Vertical groove, 5 ... Positioning protrusion, 11 ... Auxiliary blade.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 上部が上板への取付部に、下部が所要角で正面
側と背面側とから傾斜面で尖頭に形成されると共
にその尖頭の背面を上下端を同一面に、その中間
を肉薄の偏肉に形成され、背面に補助上刃を重合
設置自在の上刃と、上半を受け台に下半を下板に
嵌挿する取付部に形成されると共に、その受け台
の上面は上開きの手前傾斜面と奥側傾斜面とで斜
面受け溝に形成され、かつその斜面受け溝の底部
に前記上刃を嵌入する垂直受け溝が前後偏心に設
けられ、さらに奥側上面に位置決め突条が設けら
れる下駒とから構成されることを特徴とする板金
折曲機用上刃および下駒装置。 The upper part is the attachment part to the upper plate, and the lower part is formed into a point with a sloped surface from the front side and the back side at the required angle, and the back of the point is formed with the upper and lower ends on the same plane, and the middle part is a thin wall. The upper blade is formed with uneven thickness, and the auxiliary upper blade can be freely placed on the back side, and the mounting part is formed to fit the upper half into the holder and the lower half into the lower plate, and the upper surface of the holder is A slope receiving groove is formed by the front inclined surface and the rear sloped surface of the opening, and a vertical receiving groove into which the upper blade is inserted is provided at the bottom of the slope receiving groove, eccentrically in the front and back, and a positioning protrusion is further provided on the upper surface on the rear side. An upper blade and lower piece device for a sheet metal bending machine, comprising a lower piece provided with a strip.