JPS62188618A - Cutting method for sheet metal member - Google Patents

Cutting method for sheet metal member

Info

Publication number
JPS62188618A
JPS62188618A JP2836686A JP2836686A JPS62188618A JP S62188618 A JPS62188618 A JP S62188618A JP 2836686 A JP2836686 A JP 2836686A JP 2836686 A JP2836686 A JP 2836686A JP S62188618 A JPS62188618 A JP S62188618A
Authority
JP
Japan
Prior art keywords
sheet metal
cut
die
cutting
metal member
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
JP2836686A
Other languages
Japanese (ja)
Inventor
Mitsuo Takada
高田 光雄
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP2836686A priority Critical patent/JPS62188618A/en
Publication of JPS62188618A publication Critical patent/JPS62188618A/en
Pending legal-status Critical Current

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  • Shearing Machines (AREA)

Abstract

PURPOSE:To dispense with time and labor for clearance adjusting work as well as to make each sheet metal cuttable with one cutting die, by cutting the sheet metal after once shaping a size of plate thickness to be smaller than the plate thickness other than the cut part when it is cut. CONSTITUTION:A press die consists of a lower die and an upper die 3, and the lower die is provided with a punch 5 on the top of a holder plate, while it is provided with each blank holder 6 at both sides of this punch 5. Each of these blank holders 6 installs a web plate 7 interposingly in a gap with the punch 5, while elastically holds it with a cushion pin, and when these upper and lower dies are separated, they come into a state or being more projected to the upper side than both ends of the top of the punch 5. And, the upper die 3 is provided with a projection part 3a which is formed as adjusted to a cut part A of a sheet metal member Wa. And, this sheet metal member Wa is held between the upper die 3 and the punch 5, whereby the cut part A is elastically deformed. Then, the cut part A being shaped into plate thickness size T1 is cut by a cutting die in optimum conditions.

Description

【発明の詳細な説明】 [発明の目的] (産業上の利用分野) この発明は、板金素材や成形工程における車体パネル等
の板金部材を切断するのに利用する板金部材の切断方法
に関するものである。
[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a method for cutting sheet metal members, which is used to cut sheet metal members such as sheet metal materials and car body panels in the forming process. be.

(従来の技術) 従来、板金部材を切断するにあたっては、例えば第5図
に示すような切断型を用いていた。
(Prior Art) Conventionally, a cutting die as shown in FIG. 5, for example, has been used to cut a sheet metal member.

すなわち、切断型100は、板金部材である車体パネル
Wのトリミング工程に用いるものであっ102と、この
下型102に相対向して上下動する上型1ゝ03とから
成っている。前記上型103には、下型102に載置し
た車体パネルWの主体部分に対向するパッド104が弾
性体105および図示しないパッドリテーナで吊設しで
あると共に、前記下部切刃101.101に対応する上
部切刃106,106が固定しである。そして、上記の
切断型100は、上型103の下降に伴ってパッド10
4で車体パネルWを抑圧固定し、続いて、上部切刃10
6,106と下部切刃101゜101とで下型102の
両側に張出した車体パネルWの両端部を切断する。
That is, the cutting die 100 consists of a die 102 used in the trimming process of a vehicle body panel W, which is a sheet metal member, and an upper die 103 that moves up and down in opposition to the lower die 102. A pad 104 facing the main body of the vehicle body panel W placed on the lower mold 102 is suspended from the upper mold 103 by an elastic body 105 and a pad retainer (not shown), and is attached to the lower cutting blade 101.101. The corresponding upper cutting edges 106, 106 are fixed. Then, as the upper die 103 lowers, the cutting die 100 cuts the pad 10.
4 suppresses and fixes the car body panel W, and then the upper cutting blade 10
6, 106 and the lower cutting blade 101°101 cut both ends of the vehicle body panel W extending on both sides of the lower mold 102.

ここで、上記したような切断を行う場合、上部切刃10
6と下部切刃101との間には当然クリアランスを設け
ることになり1例えば第6図に示すように、車体パネル
Wの厚さ寸法T、に応じて所定のクリアランス寸法C1
を設けている。また、第7図に示すように、上記厚さ寸
法T、よりも大きい厚さ寸法T2を有する車体パネルW
aを切断する場合には、これに対応したクリアランス寸
法C2を設定する必要がある。
Here, when performing the above-mentioned cutting, the upper cutting blade 10
6 and the lower cutting edge 101. For example, as shown in FIG. 6, a predetermined clearance dimension C1 is provided depending on the thickness dimension T of the vehicle body panel W.
has been established. Further, as shown in FIG. 7, a vehicle body panel W having a thickness T2 larger than the thickness T
When cutting a, it is necessary to set a corresponding clearance dimension C2.

(発明が解決しようとする問題点) ところが、上記した如く、切断には板厚とクリアランス
との関係が不可欠なものであることから、従来における
板金部材の切断では、異なる板厚に応じてクリアランス
の調整を行ったり、板厚に応じたクリアランスを有する
切断型を用いたりしていたが、前者の場合には、調整作
業などに手間を要することから生産性向上等の面で好ま
しくないという問題点があり、後者の場合には、型費が
膨大なものになる恐れがあるという問題点があった。
(Problem to be Solved by the Invention) However, as described above, since the relationship between plate thickness and clearance is essential for cutting, in conventional cutting of sheet metal members, the clearance is adjusted according to different plate thicknesses. However, in the former case, the adjustment work requires time and effort, which is undesirable in terms of improving productivity. In the latter case, there was a problem that the mold cost could become enormous.

この発明は、このような問題点に着目して成されたもの
で、クリアランスの調整作業のような切断工程における
手間を省くことができるとともに、型費の低減を図るこ
とができる板金部材の切断方法を提供することを目的と
している。
This invention has been made by focusing on these problems, and is a method for cutting sheet metal members that can save time and effort in the cutting process such as clearance adjustment work, and can reduce mold costs. The purpose is to provide a method.

[発明の構成] (問題点を解決するための手段) この発明による板金部材の切断方法は、板金部材を切断
するに際し、板金部材の被切断部分の板厚を被切断部分
以外の板厚よりも小さく整形したのち、前記被切断部分
を切断することを特徴としている。上記構成の場合、板
金部材は、板金素材(コイル#)や成形工程中のパネル
体を含み、被切断部分の整形は、プレスなどによる塑性
加工で行うことができ、例えば複数の成形工程が成され
る板金部材の場合には、切断を行う以前の工程における
所定の加工とともに整形を施すことも良い、また、被切
断部分とは、後に切断される部分を言う。
[Structure of the Invention] (Means for Solving the Problems) In the method for cutting a sheet metal member according to the present invention, when cutting a sheet metal member, the thickness of the portion of the sheet metal member to be cut is determined from the thickness of the portion other than the portion to be cut. The method is characterized in that the cut portion is cut after being shaped into a smaller size. In the case of the above configuration, the sheet metal member includes the sheet metal material (coil #) and the panel body undergoing the forming process, and the shaping of the part to be cut can be performed by plastic processing using a press or the like, for example, when multiple forming processes are completed. In the case of a sheet metal member that is to be cut, shaping may be performed along with predetermined processing in the process before cutting.The section to be cut refers to the section that will be cut later.

(実施例) 以下、この発明を図面に基づいて説明する。(Example) The present invention will be explained below based on the drawings.

第1図および第2図は、この発明の一実施例に用いるプ
レス型を説明する図である。なお、この実施例では、板
厚寸法TIを有する板金部材W(第6図参照)の切断に
対して、これよりも大きい板厚寸法T2を有する板金部
材Wa(第7図参照)を切断する場合を例示している。
FIGS. 1 and 2 are diagrams illustrating a press mold used in an embodiment of the present invention. In this example, in contrast to cutting a sheet metal member W having a thickness dimension TI (see FIG. 6), a sheet metal member Wa having a larger thickness dimension T2 (see FIG. 7) is cut. An example of a case is shown below.

プレス型1は、下型2とこの下型2に相対向して上下動
する上型3とから成るもので、前記下型2は、ホルダプ
レート4の上面にポンチ5を備えるとともにポンチ5の
両側にブランクホルダ6゜6を備えている。前記各ブラ
ンクホルダ6は、ポンチ5との間にウェアプレート7を
介装するとともに前記ホルダプレート4を貫通するクッ
ションビン8で弾性保持してあり、上下の型3.2が離
間しているときには、ポンチ5の上面両端部よりも上位
側に突出した状態になる。また、上型3は、ポンチ5の
両端部近傍に相対向するところに、両板金部材W、Wa
の板厚の差に等しい突出量の突部3aを有しており、こ
の突部3aは、板金部材の被切断部分に合わせて形成し
である。
The press die 1 consists of a lower die 2 and an upper die 3 that moves up and down opposite to the lower die 2. The lower die 2 is equipped with a punch 5 on the upper surface of a holder plate 4, and Blank holders 6°6 are provided on both sides. Each of the blank holders 6 is elastically held by a wear plate 7 interposed between the blank holder 6 and the punch 5 and a cushion pin 8 passing through the holder plate 4. When the upper and lower molds 3.2 are separated from each other, , the punch 5 is in a state of protruding upward from both ends of the upper surface thereof. Further, the upper mold 3 has two sheet metal members W, Wa
The protrusion 3a has a protrusion amount equal to the difference in plate thickness, and the protrusion 3a is formed to match the portion of the sheet metal member to be cut.

そして、上記のプレス型1は、板厚寸法が大きい方の板
金部材Waを両ブランクホルダ6.6に載置したのち、
上型3の下降に伴ってブランクホルダ6.6を押動して
上型3とポンチ5との間で板金部材Waを挟み込み、突
部3aで板金部材Waの被切断部分Aを圧縮して塑性変
形させる。
Then, in the above-mentioned press die 1, after placing the sheet metal member Wa having a larger plate thickness on both blank holders 6.6,
As the upper die 3 descends, the blank holder 6.6 is pushed to sandwich the sheet metal member Wa between the upper die 3 and the punch 5, and the protrusion 3a compresses the portion A of the sheet metal member Wa to be cut. Plastically deform.

+″ハI+臀μt−ゼしフ刑1慴加A城−に+ Wa小
十萌部分に所定の加工を施すことも良い、このようにし
て整形された板金部材Waは、第3図に示すように、突
部3aによって被切断部分Aに当該被切断部分A以外の
板厚よりも薄い状態の凹部Bが形成され、その厚さが小
さい方の板厚寸法T1に等しくなっている。
It is also good to apply a prescribed processing to the small part of the body.The sheet metal member Wa shaped in this way is shown in Fig. 3. As shown, a concave portion B is formed in the cut portion A by the protrusion 3a and is thinner than the thickness of the other portion than the cut portion A, and the thickness thereof is equal to the smaller plate thickness dimension T1.

第4図は、切断型の主要部分を説明する図であって、全
体的な構造は従来例の切断型100(第5図参照)と同
一であり、符号101は下型102に設けた下部切刃、
104はパッド、モして106は上部切刃である。また
、上部切刃106と下部切刃101との間には、小さい
方の板厚寸法T、に対応したクリアランス寸法C1が設
けである。つまり、前述の如く、板厚が大きい方の板金
部材Waの被切断部分Aを小さい板厚寸法T1に合わせ
て薄く整形しであることから、前記板金部材Waを上記
切断型で良好に切断する゛ことができ、例えば生産工程
のうえでは一台のりJ開型で両板金部材W、WaのすJ
断を行うことができる。
FIG. 4 is a diagram illustrating the main parts of the cutting die, and the overall structure is the same as the conventional cutting die 100 (see FIG. 5). cutting blade,
104 is a pad, and 106 is an upper cutting blade. Further, a clearance dimension C1 corresponding to the smaller plate thickness dimension T is provided between the upper cutting edge 106 and the lower cutting edge 101. That is, as described above, since the portion A to be cut of the sheet metal member Wa having a larger thickness is shaped to be thinner in accordance with the smaller plate thickness dimension T1, the sheet metal member Wa can be cut well with the cutting die. For example, in the production process, both sheet metal parts W, Wa and
You can make a decision.

なお、上記実施例では上型3に突部3aを設けたものと
したが、この突部をポンチあるいは双方に設けたり、両
板金部材W、Waのプレス加工を一つの型で行うために
突部を着脱可能にしたりすることも良く、とくに整形手
段が限定されることはない。また、当該切断方法は、板
金部材の板厚が二種類以上であっても当然良く、この場
合には、例えば各板厚のうちの最小の板厚を基準にして
、対象となる板金部材の整形を行うようにすれば良く、
その他、被切断部分の板厚が部分的に異なる板金部材を
切断する場合にも適用可能である。
In the above embodiment, the upper die 3 is provided with the protrusion 3a, but the protrusion may be provided on the punch or both, or in order to press both the sheet metal members W and Wa with one die. It is also possible to make the part removable, and there are no particular limitations on the shaping means. Further, the cutting method may naturally be used even when the sheet metal member has two or more thicknesses, and in this case, for example, the minimum thickness of each sheet metal member is used as a reference, and the sheet metal member to be cut is All you have to do is get some plastic surgery done,
In addition, the present invention can also be applied to the case of cutting a sheet metal member in which the thickness of the cut portion is partially different.

[発明の効果] 以上説明してきたように、この発明の板金部材の切断方
法によれば、板金部材を切断するに際し、板金部材の被
切断部分の板厚を被切断部分以外の板厚よりも小さく整
形したのち、前記被切断部分を切断するようにしたため
、例えば板厚の異なる板金部材を切断する場合に、被切
断部分の板厚を均一化して切断することができるので、
従来板厚に応じて行っていたクリアランス調整作業のよ
うな切断工程における手間を省くことができ、同時に一
台の切断型で各板金部材の切断が可能になるので、型費
を大幅に低減することができるという優れた効果を奏す
る。
[Effects of the Invention] As explained above, according to the method for cutting a sheet metal member of the present invention, when cutting a sheet metal member, the thickness of the portion of the sheet metal member to be cut is made smaller than the thickness of the portion other than the portion to be cut. Since the part to be cut is cut after being shaped into a small size, for example, when cutting sheet metal members with different thicknesses, the thickness of the part to be cut can be made uniform before cutting.
This eliminates the hassle of cutting processes such as clearance adjustment work that was conventionally done according to the sheet thickness, and at the same time, it is possible to cut each sheet metal member with a single cutting die, significantly reducing mold costs. It has the excellent effect of being able to

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

第1図はこの発明の一実施例に用いるプレス型において
被切断部分を整形した状態を説明する断面図、第2図は
プレス型の全体を説明する断面図、第3図は整形後の被
切断部分を説明する断面図、第4図は被切断部分を切断
する状態を説明する断面図、第5図は従来から用いてい
た切断型を説明する断面図、第6図は板厚とクリアラン
スとの関係を説明する断面図、第7図は板Hが大きい板
金部材を切断する際のクリアランスを説明する断面図で
ある。 Wa・・・板金部材、 T2・・・板厚寸法、 A・・・被切断部分。 第1図       第4図 第5図  1゜。 第6図    第7図
FIG. 1 is a cross-sectional view illustrating a state in which a portion to be cut has been shaped in a press mold used in an embodiment of the present invention, FIG. 2 is a cross-sectional view illustrating the entire press mold, and FIG. 4 is a sectional view illustrating the state of cutting the part to be cut, 5 is a sectional view illustrating the conventional cutting die, and 6 is the plate thickness and clearance. FIG. 7 is a sectional view illustrating the clearance when the plate H cuts a large sheet metal member. Wa...Sheet metal member, T2...Plate thickness dimension, A...Part to be cut. Figure 1 Figure 4 Figure 5 1°. Figure 6 Figure 7

Claims (1)

【特許請求の範囲】[Claims] (1)板金部材を切断するに際し、板金部材の被切断部
分の板厚を被切断部分以外の板厚よりも小さく整形した
のち、前記被切断部分を切断することを特徴とする板金
部材の切断方法。
(1) When cutting a sheet metal member, the thickness of the part to be cut of the sheet metal member is shaped to be smaller than the thickness of the part other than the part to be cut, and then the part to be cut is cut. Method.
JP2836686A 1986-02-10 1986-02-10 Cutting method for sheet metal member Pending JPS62188618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2836686A JPS62188618A (en) 1986-02-10 1986-02-10 Cutting method for sheet metal member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2836686A JPS62188618A (en) 1986-02-10 1986-02-10 Cutting method for sheet metal member

Publications (1)

Publication Number Publication Date
JPS62188618A true JPS62188618A (en) 1987-08-18

Family

ID=12246625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2836686A Pending JPS62188618A (en) 1986-02-10 1986-02-10 Cutting method for sheet metal member

Country Status (1)

Country Link
JP (1) JPS62188618A (en)

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