JP2001340923A - Detecting method of strip miss in punch press machine and detecting device - Google Patents
Detecting method of strip miss in punch press machine and detecting deviceInfo
- Publication number
- JP2001340923A JP2001340923A JP2000159813A JP2000159813A JP2001340923A JP 2001340923 A JP2001340923 A JP 2001340923A JP 2000159813 A JP2000159813 A JP 2000159813A JP 2000159813 A JP2000159813 A JP 2000159813A JP 2001340923 A JP2001340923 A JP 2001340923A
- Authority
- JP
- Japan
- Prior art keywords
- ram head
- ram
- punch
- strip
- punch press
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004080 punching Methods 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009420 retrofitting Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools
- B21D45/006—Stripping-off devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D55/00—Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はパンチプレス機にお
けるストリップミスの新規の検出方法とその装置に関す
る。The present invention relates to a novel method and apparatus for detecting a strip error in a punch press.
【０００２】[0002]
【従来の技術】パンチプレス加工では、連続打抜き加工
を行うとき、パンチ金型が打抜いたワークから離れたか
否かを、パンチ金型の上昇（戻り）工程でラムヘッドと
パンチ金型とが接触しているか否かを検出することによ
り、パンチ金型のストリップが適性になされたかストリ
ップミスがあったかを判別している。ストリップミスの
ままワークを位置決めのため動かすと、工具の損傷やワ
ークの傷みを招来し、加工不良等を惹起するからであ
る。2. Description of the Related Art In a punch press working, when performing continuous punching work, it is determined whether or not a punch die has separated from a punched work by a contact between a ram head and a punch die in an ascending (returning) process of the punch die. By detecting whether or not the strip has been properly performed, it is determined whether the strip of the punch die has been properly formed or a strip error has occurred. This is because, if the workpiece is moved for positioning with a strip mistake, the tool is damaged or the workpiece is damaged, resulting in a processing defect or the like.
【０００３】上記のパンチ金型とラムヘッドとが接触し
ているか否かの検出方法としては、Ｕ字状に曲げた金属
丸棒（エリアバーという）をラムヘッドの側面から下面
に取付け、エリアバーに電気を通すことにより、当該エ
リアバー（ラムヘッド）とパンチ金型との接触／非接触
によって導通／非導通を判別し、これによってストリッ
プミスの有無を判別する方式がある。As a method for detecting whether or not the punch die and the ram head are in contact with each other, a metal round bar (referred to as an area bar) bent in a U-shape is attached from the side surface of the ram head to the lower surface, and is attached to the area bar. There is a method in which conduction / non-conduction is determined based on contact / non-contact between the area bar (ram head) and the punch die by passing electricity, thereby determining the presence or absence of a strip error.
【０００４】また、光ファイバセンサをラムヘッドに取
付け、前記センサの光軸がラムヘッド下面を通過するよ
うに調整しておき、ラムヘッド下面とパンチ金型上面の
接触の有無を、前記センサの光軸がラムヘッドとパンチ
金型によって遮断されているか否かにより判別し、これ
によりストリップミスの有無を判別する方式もある。Also, an optical fiber sensor is mounted on the ram head, and the optical axis of the sensor is adjusted so as to pass through the lower surface of the ram head. There is also a method in which the determination is made based on whether or not the block is interrupted by the ram head and the punch die, thereby determining the presence or absence of a strip error.
【０００５】しかし、上記の従来方式はいずれもストリ
ップミスを検出するための手段を、パンチプレス機にお
けるラムヘッドやパンチ金型の外側に、機械的後付け構
造を以て取付ける形態であるため、構造的に複雑になり
がちであり、また、組付けやメンテナンスも容易でない
という難点がある。上記のような問題は、パンチプレス
機がタレットパンチプレス機においても同じである。[0005] However, in the above conventional methods, the means for detecting a strip error is attached to the outside of a ram head or a punch die in a punch press machine with a mechanical retrofitting structure. And it is difficult to assemble and maintain. The above problems are the same when the punch press is a turret punch press.
【０００６】特に、従来技術はセンサとして機能する部
材を、ラムヘッドやその近傍の可動部分に設けるいわゆ
る外付け形態ゆえに、前記センサ機能部材がパンチプレ
ス機の振動や衝撃を受け易く、予め調整したセンサとし
ての感度、つまり光学式のものでは光軸のずれが、電気
式のものでは接触位置のずれなどが生じて感度が狂った
り、損傷され易いといった固有の問題があるほか、その
パンチプレス機に使用された工具の形式によっては適用
できないという問題（例えば、ホイールツールではパン
チ金型がラムヘッドと接触したまま回転するので、エリ
アバーの接触部が破損して使えない）がある。In particular, in the prior art, since a member functioning as a sensor is provided on a ram head and a movable portion near the ram head in a so-called external form, the sensor function member is easily affected by vibration or impact of a punch press, and a sensor adjusted in advance is used. In other words, there is an inherent problem that the optical axis shifts the optical axis in the optical type, the shift of the contact position in the electric type causes the sensitivity to be lost or easily damaged, and the punch press machine has There is a problem that it cannot be applied depending on the type of tool used (for example, in the case of a wheel tool, since the punching die rotates while being in contact with the ram head, the contact portion of the area bar is damaged and cannot be used).
【０００７】[0007]
【発明が解決しようとする課題】本発明は上記のような
従来技術の問題点に鑑み、センサとし機能する部分をパ
ンチプレス機の構造内に収蔵させた構造にして、振動，
衝撃などによって作動感度が狂ったり、破壊されること
のないセンサ機能部を利用したストリップミスの有無を
検出する方法と、そのための装置を提供することを課題
とするものである。SUMMARY OF THE INVENTION In view of the above-mentioned problems of the prior art, the present invention provides a structure in which a portion functioning as a sensor is housed in the structure of a punch press machine, and is used for vibration,
An object of the present invention is to provide a method for detecting the presence or absence of a strip error using a sensor function unit that does not degrade operation sensitivity or be damaged by impact or the like, and to provide an apparatus therefor.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決すること
を目的としてなされた本発明方法の構成は、パンチプレ
スにおけるラムヘッドのみを機械側と電気的に絶縁され
た状態で設けて当該ラムヘッドに低電圧を印加し、前記
ラムヘッドがパンチ金型と接触しているときはそのパン
チ金型を通ってラムヘッドが機械側に接地されて導通し
ていることを検出し、また、ラムヘッドとパンチ金型が
接触しないときは非導通であることを検出して、非導通
時をストリップミスと判断することを特徴とするもので
ある。SUMMARY OF THE INVENTION An object of the present invention, which has been made to solve the above-mentioned problems, is to provide a ram head in a punch press only in a state in which the ram head is electrically insulated from a machine side. When a voltage is applied, when the ram head is in contact with the punch mold, it is detected that the ram head is grounded and electrically connected to the machine side through the punch mold, and the ram head and the punch mold are connected. When there is no contact, it is detected that there is no conduction, and when there is no conduction, it is determined that a strip error has occurred.
【０００９】また、上記方法を実施するストリップミス
の検出装置の構成は、パンチプレスにおけるラムとラム
ヘッドとをボルト締による結合構造にし、前記ラムとラ
ムヘッドとの結合部分に電気絶縁部材を介在させて当該
ラムとラムヘッドを電気的に絶縁すると共に、前記結合
に用いるボルトとラムヘッドの接触部分を電気的に絶縁
し、前記ラムヘッドに低電圧を印加するための配線を取
付けて成り、前記配線を含むラムヘッドと機械側により
形成される電気回路が導通しているか遮断されているか
を検出するようにしたことを特徴とするものである。The strip error detecting apparatus for implementing the above method is configured such that a ram and a ram head in a punch press are connected by bolts, and an electrical insulating member is interposed between the ram and the ram head. A ram head that electrically insulates the ram and the ram head, electrically insulates a contact portion between the bolt used for the coupling and the ram head, and attaches a wire for applying a low voltage to the ram head; And detecting whether the electrical circuit formed by the machine and the machine is conductive or interrupted.
【００１０】[0010]
【発明の実施の形態】次に、本発明の実施の形態例につ
いて、図を参照しつつ説明する。図１は本発明方法を適
用したパンチプレス機のラムヘッドとパンチ金型を含む
要部の断面図、図２は図１のラムヘッドの断面図であ
る。Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of a main part including a ram head and a punch die of a punch press to which the method of the present invention is applied, and FIG. 2 is a sectional view of the ram head of FIG.
【００１１】図１において、１はパンチプレス機のラム
で、油圧シリンダ等の適宜駆動源によってプレス加工時
に上，下方向でのストローク運動を行う。ラム１の下端
部は、真下に向けて凹状に開口したラムヘッド３の取付
座２に形成されている。In FIG. 1, reference numeral 1 denotes a ram of a punch press machine, which performs an upward and downward stroke motion during press working by an appropriate drive source such as a hydraulic cylinder. The lower end of the ram 1 is formed on a mounting seat 2 of the ram head 3 which is opened in a concave shape right below.
【００１２】ラムヘッド３は、図の例では右側に打撃部
3aを形成すると共に、上部が前記下向き凹状の取付座２
に嵌合される結合部3bに形成されている。また、このラ
ムヘッド３には、そのストローク方向と平行な向きで結
合用ボルト４を挿入するため複数のボルト穴3cが形成さ
れ、この穴3cに挿入されるボルト４によって前記ラム１
における取付座２に結合されるように形成されている。The ram head 3 has a hitting portion on the right side in the illustrated example.
3a, and the upper part of the mounting seat 2 having the downward concave shape.
It is formed in the coupling part 3b fitted to the. The ram head 3 is formed with a plurality of bolt holes 3c for inserting the coupling bolts 4 in a direction parallel to the stroke direction, and the ram 1 is inserted by the bolts 4 inserted into the holes 3c.
Is formed so as to be coupled to the mounting seat 2 at
【００１３】上記ラムヘッド３において、ラム１との結
合部3bはその上端面と周囲に電気絶縁部材5a，5bが配設
されていると共に、ボルト４が挿入されるボルト穴3cに
おいては、そのボルト４の頭4aと軸4bが対面する側にこ
のボルト用の絶縁部材6a，6bが設けられている。なお、
上記絶縁部材の材質は任意である。In the above-mentioned ram head 3, the connecting portion 3b with the ram 1 is provided with electric insulating members 5a and 5b around its upper end surface and the periphery thereof. The insulating members 6a and 6b for the bolts are provided on the side of the head 4a and the shaft 4b facing each other. In addition,
The material of the insulating member is arbitrary.
【００１４】上記の絶縁部材5a，5b、同6a，6bを介在さ
せてラムヘッド３を、ラム１の取付座２にそのネジ穴2a
にボルト４の雄ネジ4cを螺合させ、このボルト４を締付
けることにより、ラムヘッド３はラム１、即ち、パンチ
プレス機の機械側に対して電気絶縁された状態で取付け
られることとなる。The ram head 3 is inserted through the insulating members 5a, 5b and 6a, 6b into the mounting seat 2 of the ram 1 with the screw holes 2a.
The ram head 3 is attached to the ram 1, that is, the machine side of the punch press machine in a state of being electrically insulated, by screwing the male screw 4c of the bolt 4 into the nut and tightening the bolt 4.
【００１５】本発明では電気的に絶縁状態で設けられた
上記のラムヘッド３の側面（図の例では左側面）に、逆
Ｌ字状をなす導電性のブラケット７を介して電気導線８
を配線として取付け、この導線８に、一例として２４Ｖ
の直流を印加するようにした。こうすると、加工後のパ
ンチ金型９の戻り上昇停止位置においてラムヘッド３の
打撃部3aの下面がこのラムヘッド３の真下に位置したパ
ンチ金型９の上面に接しているときは、前記導線８に印
加した電流はパンチ金型９を経てパンチプレス機に接地
されるので、電源（図示せず）と導線８の間に電流計な
どの検出器（図示せず）を挿入しておけば、電流が流れ
たこと、つまり、ラムヘッド３とパンチ金型９とが接し
ていてパンチ金型９のストリップが完了したことが検出
され、また、ラムヘッド３とパンチ金型９とが未だ接し
ていなければ、前記電流は流れないので、ストリップは
完了していないことが検出されるのである。また、パン
チ金型９の戻り上昇停止位置において、電流がすぐに検
出されなくとも、設定時間以内に電流が検出された場合
にはストリップの完了を検出できるように設定すること
は、随意に行うことができる。なお、図１において10は
パンチ金型９のホルダ（又はタレット）、Ｗはワークで
ある。In the present invention, an electric conducting wire 8 is provided on the side surface (the left side surface in the example in the figure) of the ram head 3 provided in an electrically insulated state via a conductive bracket 7 having an inverted L-shape.
Is attached as a wiring, and 24 V
Was applied. In this way, when the lower surface of the striking portion 3a of the ram head 3 is in contact with the upper surface of the punch die 9 located immediately below the ram head 3 at the position where the punch die 9 after machining returns and stops at the return position, the lead wire 8 Since the applied current is grounded to the punch press machine via the punch die 9, if a detector (not shown) such as an ammeter is inserted between the power supply (not shown) and the conductor 8, the current can be reduced. That is, it is detected that the ram head 3 and the punch die 9 are in contact with each other and the stripping of the punch die 9 is completed. If the ram head 3 and the punch die 9 are not yet in contact with each other, Since the current does not flow, it is detected that the strip is not completed. At the return-up stop position of the punching die 9, if the current is detected within the set time even if the current is not immediately detected, it is arbitrarily set so that the completion of the strip can be detected. be able to. In FIG. 1, reference numeral 10 denotes a holder (or turret) of the punch die 9, and W denotes a work.
【００１６】[0016]
【発明の効果】本発明は以上の通りであって、パンチ金
型を打撃するラムヘッドをその取付部位において機械に
対して電気絶縁された状態で設け、そのラムへッドに弱
電流を流してパンチプレス加工をするとき、前記ラムヘ
ッドとパンチ金型との接触の有無を前記電流を検出する
ことにより、ストリップミスの有無を判別をするように
したので、従来の検出手法のようにセンサとして機能す
る電気接点や光電気部材を、いわば後付け形態によって
ラムヘッド近傍に設けていた形態のもののように、振動
や衝撃の影響を受けて検出感度が狂ったり、パンチ金型
の回転によってセンサ部材が損傷を受けるといった問題
は、全くない。The present invention is as described above. A ram head for hitting a punch die is provided in a state where the ram head is electrically insulated from a machine at a mounting portion thereof, and a weak current is applied to the ram head. When performing punch press working, the presence or absence of contact between the ram head and the punch die is detected by detecting the current, so that the presence or absence of a strip mistake is determined, so that it functions as a sensor as in a conventional detection method. The electrical contacts and opto-electrical members that are provided near the ram head in a so-called retrofitting configuration, as a result, may be affected by vibration or impact, resulting in inaccurate detection sensitivity, or rotation of the punch die may damage the sensor members. There is no problem of receiving it.
【図１】本発明方法を適用したパンチプレス機のラムヘ
ッドとパンチ金型を含む要部の断面図。FIG. 1 is a sectional view of a main part including a ram head and a punch die of a punch press machine to which the method of the present invention is applied.
【図２】図１のラムヘッドの断面図。FIG. 2 is a sectional view of the ram head shown in FIG. 1;
１ パンチプレス機のラム ２ 取付座 ３ ラムヘッド 3a 打撃部 3b 結合部 3c ボルト穴 ４ ボルト 5a，5b 電気絶縁部材 6a，6b ボルト用の絶縁部材 ７ ブラケット ８ 電気導線 ９ パンチ金型 Ｗ ワーク Reference Signs List 1 ram of punch press machine 2 mounting seat 3 ram head 3a hitting portion 3b connecting portion 3c bolt hole 4 bolt 5a, 5b electric insulating member 6a, 6b insulating member for bolt 7 bracket 8 electric conductor 9 punch die W work
Claims (3)
取付部位において機械に対して電気絶縁された状態で設
け、そのラムへッドに弱電流を流してパンチプレス加工
をするとき、前記ラムヘッドとパンチ金型との接触の有
無を前記電流を検出することにより、ストリップミスの
有無を判別をすることを特徴とするパンチプレス機にお
けるストリップミスの検出方法。1. A ram head for hitting a punch die is provided in a state where the ram head is electrically insulated from a machine at a mounting portion thereof. A method for detecting a strip mistake in a punch press machine, wherein the presence or absence of a contact with a punch mold is detected to detect the presence or absence of a strip mistake.
機械側と電気的に絶縁された状態で設けて当該ラムヘッ
ドに低電圧を印加し、前記ラムヘッドがパンチ金型と接
触しているときはそのパンチ金型を通ってラムヘッドが
機械側に接地されて導通していることを検出し、また、
ラムヘッドとパンチ金型が接触しないときは非導通であ
ることを検出して、非導通時をストリップミスと判断す
ることを特徴とするパンチプレス機におけるストリップ
ミスの検出方法。2. A punch press, wherein only a ram head is provided in an electrically insulated state from a machine side, a low voltage is applied to the ram head, and when the ram head is in contact with a punch mold, the punch mold is used. Detects that the ram head is grounded to the machine side and is conducting through
A method for detecting a strip error in a punch press machine, wherein when the ram head and the punch die do not come into contact with each other, non-conduction is detected, and when non-conduction is determined as a strip error, a strip error is detected.
とをボルト締による結合構造にし、前記ラムとラムヘッ
ドとの結合部分に電気絶縁部材を介在させて当該ラムと
ラムヘッドを電気的に絶縁すると共に、前記結合に用い
るボルトとラムヘッドの接触部分を電気的に絶縁し、前
記ラムヘッドに弱電流を流すための配線を取付けて成
り、前記配線を含むラムヘッドとパンチ金型側により形
成される電気回路が導通しているか遮断されているかを
検出するようにしたことを特徴とするパンチプレス機に
おけるストリップミスの検出装置。3. A ram and a ram head in a punch press are connected to each other by bolts, and an electrically insulating member is interposed between the ram and the ram head to electrically insulate the ram and the ram head. The ram head is electrically insulated from a contact portion of the ram head and a wire for passing a weak current is attached to the ram head, and an electric circuit formed by the ram head including the wire and the punch mold side is electrically connected. An apparatus for detecting a strip error in a punch press machine, wherein the apparatus detects whether or not the strip is interrupted.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000159813A JP2001340923A (en) | 2000-05-30 | 2000-05-30 | Detecting method of strip miss in punch press machine and detecting device |
| US09/865,536 US20010049954A1 (en) | 2000-05-30 | 2001-05-29 | Method and apparatus for detecting mis-stripping in a punch press machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000159813A JP2001340923A (en) | 2000-05-30 | 2000-05-30 | Detecting method of strip miss in punch press machine and detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001340923A true JP2001340923A (en) | 2001-12-11 |
Family
ID=18664090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000159813A Pending JP2001340923A (en) | 2000-05-30 | 2000-05-30 | Detecting method of strip miss in punch press machine and detecting device |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20010049954A1 (en) |
| JP (1) | JP2001340923A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143639A (en) * | 2013-03-04 | 2013-06-12 | 江苏泽恩汽机车部品制造有限公司 | Mistaken processing prevention device for punch press |
| CN109047376A (en) * | 2018-07-25 | 2018-12-21 | 上海亨诺模塑科技股份有限公司 | A kind of vehicle dormer window bracket riveting tool with thread detecting device |
| CN116422796A (en) * | 2023-06-12 | 2023-07-14 | 潍坊和通机动车辆检测有限公司 | Accident prevention reminding device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2311592B1 (en) * | 2008-07-08 | 2013-10-23 | Amada Co., Ltd. | Adapter for tapping, tapping metal mold, tap die, and method of detecting over-stroke of tap |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5474582A (en) * | 1977-11-28 | 1979-06-14 | Amada Co Ltd | Method of detecting misstrip for punching machine |
| JPS55161530A (en) * | 1979-06-02 | 1980-12-16 | Yamazaki Mazak Corp | Turret punch press furnished with plural hammers |
| JPS58122132A (en) * | 1981-08-18 | 1983-07-20 | Amada Co Ltd | Moving method of material to be worked in punch press |
-
2000
- 2000-05-30 JP JP2000159813A patent/JP2001340923A/en active Pending
-
2001
- 2001-05-29 US US09/865,536 patent/US20010049954A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143639A (en) * | 2013-03-04 | 2013-06-12 | 江苏泽恩汽机车部品制造有限公司 | Mistaken processing prevention device for punch press |
| CN109047376A (en) * | 2018-07-25 | 2018-12-21 | 上海亨诺模塑科技股份有限公司 | A kind of vehicle dormer window bracket riveting tool with thread detecting device |
| CN116422796A (en) * | 2023-06-12 | 2023-07-14 | 潍坊和通机动车辆检测有限公司 | Accident prevention reminding device |
| CN116422796B (en) * | 2023-06-12 | 2023-08-29 | 潍坊和通机动车辆检测有限公司 | Accident prevention reminding device |
Also Published As
| Publication number | Publication date |
|---|---|
| US20010049954A1 (en) | 2001-12-13 |
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