JPH01202319A - Hemming machine - Google Patents
Hemming machineInfo
- Publication number
- JPH01202319A JPH01202319A JP2280588A JP2280588A JPH01202319A JP H01202319 A JPH01202319 A JP H01202319A JP 2280588 A JP2280588 A JP 2280588A JP 2280588 A JP2280588 A JP 2280588A JP H01202319 A JPH01202319 A JP H01202319A
- Authority
- JP
- Japan
- Prior art keywords
- bending
- edge
- metal plate
- die
- wall
- 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.)
- Granted
Links
- 238000009957 hemming Methods 0.000 title description 7
- 238000005452 bending Methods 0.000 claims abstract description 129
- 239000002184 metal Substances 0.000 claims description 33
- 238000003825 pressing Methods 0.000 claims description 16
- 230000001154 acute effect Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 description 16
- 238000007906 compression Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
【発明の詳細な説明】
先ＬＬΔ皿里且１
本発明は、予め折曲された金属板の端縁部を更に大きく
折り返し状に曲げることが可能な縁曲げ加工装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an edge bending device capable of bending the edge of a pre-bent metal plate into a larger fold shape.
」」」Ｌ韮
金属板の端縁部を予めほぼ直角（必ずしも直角でなくと
もよい）に曲げておき、該端縁部を更に−大きく曲げ、
最終的に折り返し状に折曲して端縁に丸みを付与する縁
曲げ加工装置（通称、ヘミングプレス装置）は公知であ
る。このような縁曲げ加工は、例えば自動車のボンネッ
ト、トランクリッド、ドア外板等を対象として行われる
。従来の縁曲げ加工装置として、予め折曲されている金
属板端縁部を折曲箇所の斜め上方に位置するパンチで板
曲げし、次いで直上に位置するパンチで本曲げを行う装
置（例、特開昭５６−７４３２５号公報）が知られてい
る。ところが、斯かる従来の装置では、被加工物である
金属板を単に下型のダイ上に載置し、上型のパンチによ
って曲げ加工を行なっているため、■下型のダイに対す
る金属板の密着性が良好でない、■仮曲げの際に金属板
の位置ずれが生じ易い、■圧延材としての生産単位毎に
相違する金属板の機械的性質が変動すると、曲げ形状。""" The edge of the L flat metal plate is bent in advance at a nearly right angle (not necessarily at a right angle), and the edge is further bent to a greater extent.
Edge bending devices (commonly known as hemming press devices) that finally bend the material into a folded shape to give rounded edges are known. Such edge bending is performed, for example, on automobile hoods, trunk lids, door panels, and the like. Conventional edge bending equipment involves bending a pre-bent edge of a metal plate with a punch located diagonally above the bending point, and then performing final bending with a punch located directly above the bending point (e.g. JP-A-56-74325) is known. However, in such conventional equipment, the metal plate as the workpiece is simply placed on the lower die and the bending process is performed using the punch in the upper die. The adhesion is not good. ■ The position of the metal plate is likely to shift during temporary bending. ■ The mechanical properties of the metal plate, which are different for each production unit as a rolled material, may vary, resulting in the bending shape.
寸法が変化する等により良好な曲げ精度が得られない欠
点がある。There is a drawback that good bending accuracy cannot be obtained due to changes in dimensions, etc.
が ° しようとする′
本発明は斯かる技術的背景の下に創案されたものであり
、被加工物である金属板を板曲げの際に確実に保持し、
常に正しい形状２寸法に金属板を曲げ加■（ヘミング加
工）することが可能な縁曲げ加工装置を提供することを
その目的とする。The present invention was devised against this technical background, and aims to securely hold a metal plate as a workpiece during sheet bending,
To provide an edge bending device capable of always bending (hemming) a metal plate into two correct shapes and dimensions.
−を ゛するた の ゛よ
この目的は、下型のダイ上に載置した金属板の端縁部が
予め折曲されており、該端縁部を下型または上型に設け
た曲げパンチでヘミング加工を行う形式の縁曲げ加工装
置において、曲げ方向に逆らう方向から金属板の裏面に
進退可能に当接して金属板をダイに対して押し付けると
ともに金属板の折曲線を規定する当て金を上型に設ける
ことによって達成される。- The purpose of this is to bend the edge of the metal plate placed on the die of the lower mold in advance, and then insert the edge into a bending punch provided on the lower mold or the upper mold. In an edge bending device that performs hemming processing, a stopper is used that presses the metal plate against the die by touching the back side of the metal plate so that it can advance and retreat from the direction opposite to the bending direction, and also defines the bending line of the metal plate. This is achieved by providing it on the upper mold.
この縁曲げ加工装置にあっては、予め折曲されている金
属板縁部が曲げパンチによって折曲される際、金属板の
折曲線を規定する当て金が、裏面側からの当接関係で金
属板をダイに対して押し付けており、金属板は不動に保
持され、当て金によって規定される折曲線に沿って常に
正しい部位で折曲される。In this edge bending device, when the edge of the metal plate that has been bent in advance is bent by the bending punch, the metal plate that defines the bending line of the metal plate is brought into contact with the metal plate from the back side. The metal plate is pressed against the die, so that it is held immovably and is always bent at the correct location along the folding line defined by the stopper.
友−蒸−１
以下、第１図ないし第４図に示した本発明の一実施例に
ついて説明する。Friend Steamer 1 Hereinafter, one embodiment of the present invention shown in FIGS. 1 to 4 will be described.
第１図は縁曲げ加工装置１０の要部を示している。FIG. 1 shows the main parts of the edge bending device 10.
縁曲げ加工装置１０は上型１２と下型６８から成り、下
型６８のダイア２上に載置された金属板（外板１１８）
の予め折曲された端縁部（折曲壁１１２）の曲げ加工（
ヘミング加工）を行い得るようになっている。The edge bending device 10 consists of an upper mold 12 and a lower mold 68, and a metal plate (outer plate 118) placed on the diamond 2 of the lower mold 68.
Bending processing of the pre-bent edge (bending wall 112) of
Hemming processing) can be performed.
上型１２は、上型本体１４を基枠とし、上型本体１４か
ら下方へ突出する縁曲げ駆動体１６．当て金戻し駆動体
２２．縁曲げパンチ駆動体２４および当て金押え駆動体
２６と、複数本の吊り下げボルト３０で支えられた当て
台支持基枠３６とを備え、当て台支持基枠３６を下方へ
付勢する複数の圧縮コイルばね３２゜３４が上型本体１
４と当て台支持基枠３６の間に介装されている。当て台
支持基枠３６は、下方へ突出するストッパー柱３８．突
片４２を一体に備えるとともに、突片４２に支軸４４を
介して揺動自在に当て金ヨーク４６が支持されている。The upper mold 12 has an upper mold main body 14 as a base frame, and an edge bending drive body 16 that projects downward from the upper mold main body 14. Guard return drive body 22. The edge-bending punch drive body 24, the presser foot drive body 26, and the base support frame 36 supported by a plurality of hanging bolts 30 are provided, and the base support frame 36 is biased downward. Compression coil spring 32゜34 is the upper mold body 1
4 and the support base frame 36. The support base support frame 36 has a stopper column 38 that projects downward. A protruding piece 42 is integrally provided, and a stopper yoke 46 is swingably supported on the protruding piece 42 via a support shaft 44.
この当て金ヨーク４６は紙面に対して直角方向に長い部
材である下方へ伸長する当て金４８を一体に備えるとと
もに、下端部に当て金押えカム２８が突出形成された当
て金押え駆動体２６と係合する一対のカムローラ５４．
’５６を備え、カムローラ５４．カムローラ５６とは逆
側の当て台支持基枠３６の端部に付設された支軸５８と
当て台支持基枠３６の突片４０との間にコイルばね６２
が架渡され、支軸５８にカムローラ６０が支持されてい
る。なお、上型１２が成る高さ位置にまで下降すると、
下型６４との接触関係でコイルばね６２を包含する当て
金ヨーク４６が圧縮コイルばね３２．３４の弾発力に逆
らいながら上型本体１４に対して相対的に接近変位し、
当て金戻し駆動体２２の下端でカムローラ６０が押され
、支軸４４を支点として当て金ヨーク４６が揺動してカ
ムローラ５４．カムローラ５６側が持ち上がった傾斜姿
勢になる。This padding yoke 46 is integrally provided with a padding member 48 extending downward, which is a member long in the direction perpendicular to the plane of the drawing, and also includes a padding holder driver 26 having a padding cam 28 protruding from its lower end. A pair of engaging cam rollers 54.
'56, cam roller 54. A coil spring 62 is installed between the support shaft 58 attached to the end of the abutment support base frame 36 on the opposite side from the cam roller 56 and the projecting piece 40 of the abutment support base frame 36.
A cam roller 60 is supported on a support shaft 58. In addition, when it descends to the height position where the upper mold 12 forms,
The stopper yoke 46, which includes the coil spring 62 in contact with the lower die 64, moves toward the upper die main body 14 while opposing the elastic force of the compression coil springs 32, 34,
The cam roller 60 is pushed by the lower end of the pad return drive body 22, and the pad yoke 46 swings about the support shaft 44, causing the cam roller 54. The cam roller 56 side is tilted upward.
下型６４は、ダイ６８．ストッパー柱７２（その下端が
ストッパー柱３８の上端に当接する）を一体に備えた下
型本体６６と、下型本体６６の頂面に形成された滑動案
内台１６に沿って水平方向に往復動する縁曲げ基枠７８
とを主たる部材として構成されており、縁曲げ基枠７８
の下端部に突設されたばね用軸８０に外嵌する態様で圧
縮コイルばね１０６が縁曲げ基枠７８と下型本体６６と
の間に介装されている。この圧縮コイルばね１０６は縁
曲げ基枠７８をダイ６８から離反する方向へ付勢するた
めのものである。縁曲げ基枠７８は、縁曲げ駆動体１６
の下端部に付された予備曲げカムローラ１８と係合する
予備曲げカム８２（上傾斜面８４．下傾斜面８６を有す
る）と、同じく縁曲げ駆動体１６の下端部に付された傾
斜姿勢の本曲げカム２０と摺接するカムフォロワ８８と
をその頂部に備えるとともに、該予備曲げカム８２．カ
ムフォロワ８８とは他側の頂部に縁曲げパンチ１００を
担持するパンチ保持部材９８を備えている。パンチ保持
部材９８は、縁曲げ基枠７８の縦穴を貫通するカラー９
０で支えられ、パンチ戻し用圧縮コイルばね９２をもっ
て上方へ付勢されるとともに、カラー９０を摺動自在に
貫通するパンチ上下動用摺動軸９４を一体に備え、パン
チ戻し用圧縮コイルばね９２によって押し上げられたと
きの上限が、ダイ６８の縦穴周間口部と鍔９６との係合
関係で規定されるようになっている。パンチ保持部材９
８および該パンチ保持部材９８に保持される縁曲げパン
チ１００は紙面に対して直角方向に長い部材であって、
その下面がダイ６８の上面１０と対応する第一押圧面１
０２と、該第−押圧面１０２に連続する傾斜した第二押
圧面１０４とから成っている。The lower mold 64 is formed by a die 68. A lower mold body 66 is integrally provided with a stopper column 72 (the lower end of which abuts the upper end of the stopper column 38), and the lower mold body 66 reciprocates horizontally along a sliding guide 16 formed on the top surface of the lower mold body 66. Edge bending base frame 78
is constructed as the main member, and the edge bending base frame 78
A compression coil spring 106 is interposed between the hem bending base frame 78 and the lower mold body 66 in such a manner that it fits onto a spring shaft 80 protruding from the lower end of the mold body 66 . This compression coil spring 106 is for urging the edge bending base frame 78 in a direction away from the die 68. The edge bending base frame 78 is connected to the edge bending drive body 16
A pre-bending cam 82 (having an upper inclined surface 84 and a lower inclined surface 86) that engages with the pre-bending cam roller 18 attached to the lower end, and a pre-bending cam 82 (having an upper inclined surface 84 and a lower inclined surface 86) attached to the lower end of the edge bending drive body 16 in an inclined position. A cam follower 88 in sliding contact with the main bending cam 20 is provided at the top thereof, and the preliminary bending cam 82. A punch holding member 98 that supports an edge bending punch 100 is provided on the top portion of the other side of the cam follower 88 . The punch holding member 98 has a collar 9 that passes through the vertical hole of the edge bending base frame 78.
0, is urged upward by a compression coil spring 92 for returning the punch, and is integrally provided with a sliding shaft 94 for vertical movement of the punch that slidably passes through the collar 90. The upper limit when pushed up is determined by the engagement relationship between the circumferential opening of the vertical hole of the die 68 and the collar 96. Punch holding member 9
8 and the edge bending punch 100 held by the punch holding member 98 are long members in the direction perpendicular to the paper surface,
First pressing surface 1 whose lower surface corresponds to the upper surface 10 of the die 68
02, and an inclined second pressing surface 104 that is continuous with the first pressing surface 102.
斯かる構造になされた縁曲げ加工装置１０の動作は以下
の通りである。The operation of the edge bending device 10 having such a structure is as follows.
■第一段階：上型１２が下型６４から離隔した上限位置
にあり、ダイ６８の上面７０に外板１０８が＃ｌ置され
、主壁１１０および予め折曲された折曲壁１１２から成
る該外板１０８の折曲壁１１２がダイ６８の縦面７４に
沿っている。外板１０８は、その外表面がダイ６８に接
するように該ダイ６８上に載置され、縁曲げパンチ１０
０の内表面（または裏面）に沿って内板１１４が添設さ
れている。上型１２の当て金ヨーク４６は水平姿勢にな
っており、下型６４の縁曲げ基枠７８は圧縮コイルばね
１０６によって付勢されてダイ６８から最も離隔した図
示左限位置にある。また、縁曲げパンチ１００およびこ
れを担持するパンチ保持部材９８はパンチ戻し用圧縮コ
イルはね９２で付勢されて上限位置にある（第１図）。■First stage: The upper die 12 is at the upper limit position separated from the lower die 64, the outer plate 108 is placed on the upper surface 70 of the die 68, and consists of a main wall 110 and a pre-bent bent wall 112. A bent wall 112 of the skin 108 runs along the longitudinal surface 74 of the die 68. The outer plate 108 is placed on the die 68 so that its outer surface is in contact with the die 68, and the edge bending punch 10
An inner plate 114 is attached along the inner surface (or back surface) of 0. The padding yoke 46 of the upper mold 12 is in a horizontal position, and the edge bending base frame 78 of the lower mold 64 is biased by the compression coil spring 106 and is at the leftmost position in the drawing, farthest from the die 68. Further, the edge bending punch 100 and the punch holding member 98 supporting it are urged by the punch return compression coil spring 92 and are at the upper limit position (FIG. 1).
■第二段階二上型１２を下降させると、当て台支持基
枠３６と一体のストッパー柱３８の下端が下型６４の下
型本体６６と一体のストッパー柱７２に当接して当て台
支持基枠３６の下降が停止すると同時に当て金４８の押
圧面５２が内板１１４に、同じく当て金４８の尖端５０
が折曲壁１１２の裏面丈方向中間部にそれぞれ付き当て
られる。そして、縁曲げ基枠７８に属する予備曲げカム
８２の上傾斜面８４に予備曲げカムローラ１８が接した
後も上型１２が下降を続けると、縁曲げ基枠７８が予備
曲げカムローラ１８によって右方へ動かされ、パンチ保
持部材９８によって保持された縁曲げパンチ１００が上
限位置のまま折曲壁１１２に当接し、当て金４８の尖端
５０によって規定される折曲線に沿って正しく折曲壁１
１２が折曲される（第３図）。この間、外板１０８．内
板１１４に対する当て金４８の押圧力は圧縮コイルばね
３４．３２の弾発力、および当て金押え駆動体２６の下
端部である当て金押えカム２８部分とカムローラ５４．
５６との係合関係によって与えられる。折曲壁１１２が
折曲される間に下降を続ける当て金押え駆動体２６の下
端部て金押えカム２８部分がカムローラ５４．５６の間
からｌｉｌを脱し、同時に当て金戻し駆動体２２の下端
が当て金ヨーク４６に付されたカムローラ６０を押すと
、コイルばね６２の付勢力に抗して支軸４４を支点とし
て当て金ヨーク４６が傾斜揺動し、当て金４８が外板１
０８．内板１１４から離れて斜め上方へ逃げる。この後
も、下降を続ける縁曲げ駆動体１６の予備曲げカムロー
ラ１８と予備曲げカム８２の下傾斜面８４との接触関係
で縁曲げパンチ１００は水平方向へ移動し、前記折曲線
に沿って折曲壁１１２を更に大きく曲げる（第３図）。- Second stage When the upper die 12 is lowered, the lower end of the stopper column 38, which is integrated with the abutment support base frame 36, comes into contact with the stopper column 72, which is integrated with the lower die main body 66 of the lower die 64, and the abutment support base At the same time as the lowering of the frame 36 stops, the pressing surface 52 of the stopper 48 is pressed against the inner plate 114, and the tip 50 of the stopper 48 is also pressed against the inner plate 114.
are abutted on the middle part of the back surface length direction of the bent wall 112, respectively. When the upper mold 12 continues to descend even after the pre-bending cam roller 18 comes into contact with the upper inclined surface 84 of the pre-bending cam 82 belonging to the hem-bending base frame 78, the hem-bending base frame 78 is moved to the right by the pre-bending cam roller 18. The edge bending punch 100 held by the punch holding member 98 contacts the bending wall 112 while remaining at the upper limit position, and correctly aligns the bending wall 1 along the bending line defined by the tip 50 of the stopper 48.
12 is bent (Figure 3). During this time, the outer panel 108. The pressing force of the pad 48 against the inner plate 114 is due to the elastic force of the compression coil spring 34, 32, the pad presser cam 28 portion which is the lower end of the pad presser driver 26, and the cam roller 54.
56. While the bending wall 112 is being bent, at the lower end of the dowel presser drive body 26 that continues to descend, the presser cam 28 portion escapes from between the cam rollers 54 and 56, and at the same time the lower end of the dowel return drive body 22 When the cam roller 60 attached to the pad yoke 46 is pushed, the pad yoke 46 tilts and swings about the support shaft 44 against the biasing force of the coil spring 62, and the pad 48 moves against the outer plate 1.
08. It leaves the inner plate 114 and escapes diagonally upward. After this, the edge bending punch 100 moves in the horizontal direction due to the contact relationship between the pre-bending cam roller 18 of the edge-bending drive body 16 that continues to descend and the lower inclined surface 84 of the preliminary bending cam 82, and bends along the folding line. The curved wall 112 is bent further (FIG. 3).
■第三段階：縁曲げパンチ１００がダイ６８方向へ最も
移動した時点で縁曲げパンチ駆動体２４の下端がパンチ
保持部材９８の上面に当接し、パンチ戻し用圧縮コイル
ばね９２の弾発力に抗してパンチ保持部材９８および縁
曲げパンチ１００を押し下げ始め、同時に予備曲げカム
ローラ１８が上傾斜面８４から外れて下傾斜面８６に接
触し、縁曲げ駆動体１６の傾斜した本曲げカム２０と縁
曲げ基枠７８のカムフォロワ８８との押圧接触関係およ
び圧縮コイルばね１０６の弾発力によって縁曲げ基枠７
８．パンチ保持部材９８および縁曲げパンチ１００が初
期位置方向へ復帰開始する。その結果、縁曲げパンチ１
００は斜め方向に下降し、ダイ６８の上面７０および縦
面７４に接近するような動き方で折曲壁１１２を折曲す
る。折曲完了時点で、折曲壁１１２は縁曲げパンチ１０
０の第一押圧面１０２．第二押圧面１０４に沿い、折曲
壁１１２の先端縁側半部が内板１１４に押し付けられ、
折曲壁１１２の残余の半部が三角柱形状の小空間を画成
する形状となる（第４図）。■Third stage: When the edge bending punch 100 moves the furthest in the direction of the die 68, the lower end of the edge bending punch driver 24 comes into contact with the upper surface of the punch holding member 98, and due to the elastic force of the punch return compression coil spring 92. The punch holding member 98 and the edge bending punch 100 begin to be pushed down against the resistance, and at the same time, the preliminary bending cam roller 18 comes off the upper inclined surface 84 and comes into contact with the lower inclined surface 86, and the inclined main bending cam 20 of the edge bending drive body 16 and The hem bending base frame 7
8. The punch holding member 98 and the edge bending punch 100 start returning toward the initial position. As a result, edge bending punch 1
00 descends diagonally and bends the folding wall 112 in such a manner that it approaches the top surface 70 and longitudinal surface 74 of the die 68. When the bending is completed, the bending wall 112 is bent by the edge bending punch 10.
0 first pressing surface 102. Along the second pressing surface 104, the tip half of the bent wall 112 is pressed against the inner plate 114,
The remaining half of the bent wall 112 has a shape defining a triangular prism-shaped small space (FIG. 4).
■第四段階：上型本体１４が上昇開始し、パンチ保持部
材９８．縁曲げパンチ１００がパンチ戻し周圧！
縮コイルばね９２の弾発力によって押し上げられ、圧縮
コイルばね１０６によって縁曲げ基枠７８が押されてパ
ンチ保持部材９８．縁曲げパンチ１００が後退し、当て
金ヨーク４６が水平姿勢になって、当て金押え駆動体２
６の下端当て金押えカム２８部分にカムローラ５４．５
６が係合するとともに、復帰した当て金４８が折曲壁１
１２を押圧して外板１０８の再成形を行い、以後当て金
４８が外ｉ １０ｇ、内板１１４から離反して上昇し、
パンチ保持部材９８．縁曲げパンチ１００を担持する縁
曲げ基枠７８は初期位置に戻る。■Fourth stage: The upper mold body 14 starts to rise, and the punch holding member 98. Edge bending punch 100 has punch return circumferential pressure! The punch holding member 98 is pushed up by the elastic force of the compression coil spring 92, and the hem bending base frame 78 is pushed by the compression coil spring 106. The edge bending punch 100 retreats, the pad yoke 46 takes a horizontal position, and the pad presser driver 2
The cam roller 54.5 is attached to the lower end presser cam 28 part of 6.
6 is engaged, and the returned pad 48 is attached to the bending wall 1.
12 to reshape the outer plate 108, after which the pad 48 separates from the inner plate 114 by 10 g and rises.
Punch holding member 98. The hemming base frame 78 carrying the hemming punch 100 returns to its initial position.
なお、当て金４８による外板１０８の再成形は、必ずし
もこれを行わせる必要はなく、当て金押えカム２８の上
辺側を下辺側に比して矢印爪方向へ突出させた形状を採
用することにより、復帰方向へ揺動する当て金ヨーク４
６のカムローラ５６が当て金押えカム２８の該上辺部に
係合して当て金ヨーク４６が水平姿勢に復帰しないよう
にすることができる。ただし、当初水平姿勢にある当て
金ヨーク４６が当て金戻し駆動体２２によって押されて
傾斜揺動する際には、当て金ヨーク４Ｇを担持する当て
全支持基枠３６が水平方向にも多少動き得ることからカ
ムローラ５６は当て金押えカム２８の前記突出部を容易
に乗り越えることができる。Note that the reshaping of the outer plate 108 by the pad 48 does not necessarily have to be carried out, and a shape in which the upper side of the pad presser cam 28 protrudes in the direction of the arrow claw compared to the lower side may be adopted. The stopper yoke 4 swings in the return direction.
The cam roller 56 of No. 6 engages with the upper side of the pad presser cam 28 to prevent the pad yoke 46 from returning to the horizontal position. However, when the dot yoke 46, which is initially in a horizontal position, is pushed by the dot return driver 22 and tilted, the dot total support base frame 36 that supports the dot yoke 4G also moves somewhat in the horizontal direction. As a result, the cam roller 56 can easily ride over the protrusion of the stopper cam 28.
また、水油げカム２０．カムフォロワ８８の省略は可能
であり、その場合、ダイ６８から離反する方向への縁曲
げ基枠７Ｂの動きは圧縮コイルばね１０６の弾発力によ
って与えられる。Also, water oilage cam 20. The cam follower 88 can be omitted, and in that case, the movement of the edge bending base frame 7B in the direction away from the die 68 is provided by the elastic force of the compression coil spring 106.
本実施例によって得られる特徴点は以下に示ず通りであ
る。The feature points obtained by this example are as shown below.
■外板１０８の厚みをもった蓋曲げ形状は、上型１２に
縁曲げパンチ１００の動きに応じて進退可能な当て金４
８を設けたことにより、また第一押圧面１０２、第二押
圧面１０４を有する縁曲げパンチ１００を用いることに
より、工程数を増すことなく成形可能となった。しかも
、当て金４８の尖端５０によって規定される折曲線に沿
って縁曲げパンチ１００が折曲壁１１２を折曲する際、
外板１０８および内板１１４が当て金４８によってダイ
６８に押圧保持されているため、該外板１０８．内根１
１４が位置ずれすることはなく、折曲り１１２は当て金
４８の尖端５０によって規定された折曲線に沿って常に
正確に折曲される。■The thick lid bending shape of the outer plate 108 is achieved by a pad 4 on the upper mold 12 that can move forward and backward according to the movement of the edge bending punch 100.
8, and by using the edge bending punch 100 having the first pressing surface 102 and the second pressing surface 104, it became possible to form the molding without increasing the number of steps. Moreover, when the edge bending punch 100 bends the bending wall 112 along the bending line defined by the tip 50 of the stopper 48,
Since the outer plate 108 and the inner plate 114 are pressed and held against the die 68 by the pad 48, the outer plate 108. Inner root 1
14 will not be misaligned, and the fold 112 will always be accurately folded along the fold line defined by the tip 50 of the stopper 48.
■当て金４８の形状を選択することによって、外板１０
８の曲げ厚さ（折曲壁１１２の丈（旧）を任意に設定す
ることができる。■ By selecting the shape of the pad 48, the outer plate 10
The bending thickness (length (old) of the bending wall 112) of 8 can be set arbitrarily.
■当て金４８を使用することにより、内板１１４の有無
にかかわらず、当て金４８の尖端５０によって規定され
る折曲線に沿って正しく折曲壁１１２を折曲することが
でき、折曲壁１１２を成る程度曲げた後に内板１１４を
設定するが如き面倒な作業を行う必要はなく、工数の削
減と生産性の向上を企図し得る。■By using the pad 48, the bending wall 112 can be correctly bent along the bending line defined by the tip 50 of the pad 48, regardless of the presence or absence of the inner plate 114. There is no need to perform troublesome work such as setting the inner plate 114 after bending the inner plate 112 to a certain extent, and it is possible to reduce the number of man-hours and improve productivity.
兄Ｊばと立里
以上の説明から明らかなように、本発明によれば以下の
効果をＩＨることかできる。As is clear from the above explanation, according to the present invention, the following effects can be achieved.
■請求項（１）に記載された縁曲げ加工装置にあっては
、曲げ方向に逆らう方向から金属板の裏面に進退可能に
当接して金属板をダイに対して押し付けるとともに、金
属板の折曲線を規定する当て金を上型に設けため、曲げ
パンチにより金属板の折曲過程で金属板の位置ずれが生
じ難く、かつ当て金によって規定される折曲線に沿って
常に正しく金属板が折曲される。また、１ストロークで
板曲げおよび水油げを行うことができる。■The edge bending device according to claim (1) presses the metal plate against the die by contacting the back surface of the metal plate so as to move forward and backward from the direction opposite to the bending direction, and folds the metal plate. Because the upper die is provided with a pad that defines the curve, it is difficult for the metal plate to be misaligned during the bending process using the bending punch, and the metal plate is always folded correctly along the bending line defined by the pad. be bent. In addition, it is possible to bend a plate and bend it in one stroke.
■請求項（２）に記載された縁曲げ加工装置にあっては
、当て金の押圧面および尖端の押し付は力によって金属
板が保持されるため、曲げパンチによる折曲壁の曲げ過
程で金属板の位置ずれが生じ難く、当て金の尖端によっ
て規定される折曲線に沿って常に正しく折曲壁が折曲さ
れる。また、曲げパンチは相互に傾斜して連続する二つ
の抑圧面を有しており、縁曲げ加工に先立って折曲され
ている折曲壁が三角柱状の小空間を画成する厚みをもっ
た縁曲げ形状が得られ、この縁曲げ厚さは当て金の形状
を選択することによって任意に設定することができる。■In the edge bending device described in claim (2), since the metal plate is held by the force of the pressing surface and tip of the pad, the bending process of the bending wall by the bending punch is Misalignment of the metal plate is unlikely to occur, and the bending wall is always correctly bent along the bending line defined by the tip of the stopper. In addition, the bending punch has two continuous pressing surfaces that are inclined to each other, and the bending wall that is bent prior to the edge bending process has a thickness that defines a triangular prism-shaped small space. A beveled shape is obtained, the thickness of which can be set arbitrarily by selecting the shape of the pad.
第１図は本発明の一実施例に係る縁曲げ加工装置の初期
状態を示す一部欠截要部説明図、第２図ないし第４図は
それぞれ前記縁曲げ加工装置による金属板の折曲過程を
示す図である。
１０・・・縁曲げ加工装置、１２・・・上型、１４・・
・上型本体、１６・・・縁曲げ駆動体、１８・・・予備
曲げカムローラ、２０・・・本曲げカム、２２・・・当
て金戻し駆動体、２４・・・縁曲げパンチ駆動体、２６
・・・当て金押え駆動体、２８・・・当て金押えカム、
３０・・・吊り下げボルト、３２・・・圧縮コイルばね
、３４・・・圧縮コイルばね、３６・・・当て全支持基
枠、３８・・・ストッパー柱、４０・・・突片、４２・
・・突片、４４・・・支軸、４６・・・当て金ヨーク、
４８・・・当て金、５０・・・尖端、５２・・・押圧面
、５４．５６・・・カムローラ、５８・・・支軸、６０
・・・カムローラ、６２・・・コイルばね、６４・・・
下型、６６・・・下型本体、６８・・・ダイ、７０・・
・上面、７２・・・ストッパー柱、７４・・・縦面、７
６・・・縁曲げ基枠、７８・・・縁曲げ基枠、８０・・
・ばね用軸、８２・・・予備曲げカム、８４・・・上傾
斜面、８６・・・下傾斜面、８８・・・カムフォロワ、
９０・・カラー、９２・・・パンチ戻し用圧縮コイルば
ね、９４・・・パンチ上下動用摺動軸、９６・・・鍔、
９８・・・パンチ保持部材、１００・・・縁曲げパンチ
、１０２・・・第一押圧面、１０４・・・第二押圧面、
１０６・・・圧縮コイルばね、１０８・・・外板、１１
０・・・主壁、１１２・・・折曲壁、１１４・・・内板
。FIG. 1 is a partially cutaway explanatory view showing the initial state of an edge bending device according to an embodiment of the present invention, and FIGS. 2 to 4 show bending of a metal plate by the edge bending device, respectively. It is a diagram showing a process. 10... Edge bending processing device, 12... Upper die, 14...
- Upper die main body, 16... Edge bending drive body, 18... Preliminary bending cam roller, 20... Main bending cam, 22... Pad return drive body, 24... Edge bending punch drive body, 26
... Batch presser drive body, 28... Batch presser cam,
30... Hanging bolt, 32... Compression coil spring, 34... Compression coil spring, 36... Full support base frame, 38... Stopper column, 40... Projection piece, 42...
・Protrusion piece, 44 ・Spin shaft, 46 ・Battery yoke,
48... Batch, 50... Point, 52... Pressing surface, 54.56... Cam roller, 58... Support shaft, 60
...Cam roller, 62...Coil spring, 64...
Lower mold, 66...Lower mold body, 68...Die, 70...
・Top surface, 72... Stopper column, 74... Vertical surface, 7
6... Edge bending base frame, 78... Edge bending base frame, 80...
・Spring shaft, 82... Pre-bending cam, 84... Upper inclined surface, 86... Lower inclined surface, 88... Cam follower,
90... Collar, 92... Compression coil spring for punch return, 94... Sliding shaft for vertical movement of punch, 96... Tsuba,
98... Punch holding member, 100... Edge bending punch, 102... First pressing surface, 104... Second pressing surface,
106... Compression coil spring, 108... Outer plate, 11
0...Main wall, 112...Bending wall, 114...Inner plate.
Claims (2)
曲されており、該端縁部を下型または上型に設けた曲げ
パンチでヘミング加工を行う形式の縁曲げ加工装置にお
いて、 曲げ方向に逆らう方向から金属板の裏面に進退可能に当
接して金属板をダイに対して押し付けるとともに金属板
の折曲線を規定する当て金を上型に設けたことを特徴と
する縁曲げ加工装置。(1) Edge bending in which the edge of the metal plate placed on the die of the lower die is bent in advance, and the edge is hemmed with a bending punch provided on the lower die or the upper die. The processing device is characterized in that the upper die is provided with a stopper that presses the metal plate against the die by coming into contact with the back surface of the metal plate so as to be movable in a direction opposite to the bending direction, and also defines the bending line of the metal plate. Edge bending processing equipment.
、前記主壁から予め折曲された折曲壁に接する縦面とを
有し、前記上型の当て金は、ダイ上に載置された金属板
の裏面側から折曲壁の丈方向中間部に突き当てられる尖
端と、該尖端突き当て時に前記主壁または主壁に宛てが
われた他の金属板を押圧する押圧面とを有し、かつ前記
曲げパンチは、前記当て金の尖端によつて規定される折
曲線に沿つて前記折曲壁を鋭角に折曲し、該折曲壁の先
端縁側半部を前記主壁側に押し付ける相互に傾斜して連
続する二つの押圧面を有していることを特徴とする特許
請求の範囲第１項に記載された縁曲げ加工装置。(2) The die of the lower mold has an upper surface that supports the main wall of the metal plate, and a vertical surface that is in contact with a bent wall that is bent in advance from the main wall, and the pad of the upper mold has a A point abuts against the middle part in the length direction of the bent wall from the back side of the metal plate placed above, and presses the main wall or another metal plate addressed to the main wall when the point abuts. and a pressing surface, and the bending punch bends the bending wall at an acute angle along a bending line defined by the tip of the stopper, and bends the bending wall at a tip edge side half of the bending wall. The edge bending device according to claim 1, characterized in that it has two mutually inclined and continuous pressing surfaces that press against the main wall side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63022805A JP2596437B2 (en) | 1988-02-04 | 1988-02-04 | Edge bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63022805A JP2596437B2 (en) | 1988-02-04 | 1988-02-04 | Edge bending machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01202319A true JPH01202319A (en) | 1989-08-15 |
| JP2596437B2 JP2596437B2 (en) | 1997-04-02 |
Family
ID=12092900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63022805A Expired - Lifetime JP2596437B2 (en) | 1988-02-04 | 1988-02-04 | Edge bending machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2596437B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6295858B1 (en) * | 1998-08-03 | 2001-10-02 | Hirotec Corporation | Hemming apparatus |
| CN102513450A (en) * | 2011-12-23 | 2012-06-27 | 重庆长安汽车股份有限公司 | Vehicle door window frame fastening die structure |
| JP6004296B1 (en) * | 2015-08-12 | 2016-10-05 | 株式会社吉野機械製作所 | Bending mold and bending method using the same |
| CN117549541A (en) * | 2024-01-11 | 2024-02-13 | 金言实业集团有限公司 | Bending device and bending method for aluminum plastic plate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5876327U (en) * | 1981-11-14 | 1983-05-23 | 丸機械工業株式会社 | folding machine |
-
1988
- 1988-02-04 JP JP63022805A patent/JP2596437B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5876327U (en) * | 1981-11-14 | 1983-05-23 | 丸機械工業株式会社 | folding machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6295858B1 (en) * | 1998-08-03 | 2001-10-02 | Hirotec Corporation | Hemming apparatus |
| CN102513450A (en) * | 2011-12-23 | 2012-06-27 | 重庆长安汽车股份有限公司 | Vehicle door window frame fastening die structure |
| JP6004296B1 (en) * | 2015-08-12 | 2016-10-05 | 株式会社吉野機械製作所 | Bending mold and bending method using the same |
| CN117549541A (en) * | 2024-01-11 | 2024-02-13 | 金言实业集团有限公司 | Bending device and bending method for aluminum plastic plate |
| CN117549541B (en) * | 2024-01-11 | 2024-03-19 | 金言实业集团有限公司 | Bending device and bending method for aluminum plastic plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2596437B2 (en) | 1997-04-02 |
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