EP0266625B1 - Oberer Werkzeugträger für eine Stanze od. dgl. - Google Patents

Oberer Werkzeugträger für eine Stanze od. dgl. Download PDF

Info

Publication number
EP0266625B1
EP0266625B1 EP87115368A EP87115368A EP0266625B1 EP 0266625 B1 EP0266625 B1 EP 0266625B1 EP 87115368 A EP87115368 A EP 87115368A EP 87115368 A EP87115368 A EP 87115368A EP 0266625 B1 EP0266625 B1 EP 0266625B1
Authority
EP
European Patent Office
Prior art keywords
tool
punching
punch
force
lifting lever
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 - Lifetime
Application number
EP87115368A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0266625A2 (de
EP0266625A3 (en
Inventor
Karl-Heinz Schulte
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.)
Muhr und Bender KG
Original Assignee
Muhr und Bender KG
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 Muhr und Bender KG filed Critical Muhr und Bender KG
Priority to AT87115368T priority Critical patent/ATE72526T1/de
Publication of EP0266625A2 publication Critical patent/EP0266625A2/de
Publication of EP0266625A3 publication Critical patent/EP0266625A3/de
Application granted granted Critical
Publication of EP0266625B1 publication Critical patent/EP0266625B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/04—Movable or exchangeable mountings for tools
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/34—Perforating tools; Die holders

Definitions

  • the invention relates to an upper tool carrier for a punch or the like. According to the preamble of claim 1.
  • a quick change of a punching tool and / or all of the punching tools is possible in that a mounting plate It is part of the carrier body and the tool guides are open towards the end face of the carrier body, so that the upper ends of the punching tools can be inserted or inserted essentially horizontally into the tool guides.
  • a sealing cap closes all tool guides at the open ends together.
  • the ends of the punching tools are provided with hammer-head-like extensions and the mounting plate and the closure cap are provided with support flanges corresponding to the hammer-head-like extensions, so that the punching tools cannot slide down out of the tool guides.
  • the closure cap is pivotally articulated on the carrier body or on the receiving plate via a pivot axis and by means of a locking device, which is arranged on the opposite transverse side, with the carrier body or the receiving plate lockable.
  • the locking device consists of a locking bolt pivotally articulated on the mounting plate in the horizontal plane and a locking receptacle provided on the locking cap, which is open on one side, wherein the locking bolt can be pivoted into the locking receptacle and clamped by means of a clamping nut.
  • receiving spaces for the upper ends of the punching tools are provided on the carrier body above the tool guides and below a force transmission surface, and these receiving spaces can be bridged by means of force transmission slides which can be displaced essentially perpendicular to the punching direction.
  • Each punch is assigned a lifting lever arranged on the carrier body, one end of which laterally grips the upper end of the associated punch from below, so that the upper end of the punch can be lifted into the receiving space by means of the lifting lever when the power transmission slide is retracted.
  • pneumatic drives or the like which are not to be explained in detail are provided.
  • the punching tool is lifted into the receiving space when the power transmission slide is pulled back, by positive control of the lifting lever.
  • the lifting lever is designed as a two-armed lever and is pivotably articulated on the carrier body via a pivot axis below the power transmission slide.
  • the arm of the lifting lever pointing away from the receiving space is provided with a lifting control surface which interacts with the side of the power transmission slide facing away from the receiving space. If the power transmission slide is withdrawn from the receiving space, the side of the power transmission slide facing away from the receiving space slides on the lifting control surface of the lifting lever and presses this arm of the lifting lever downward.
  • the other, opposite arm of the lifting lever is raised accordingly and with it the upper end of the punch and thus the punch as a whole is lifted.
  • the side of the power transmission slide facing away from the receiving space ultimately passes over the arm of the lifting lever, the end position of the upper end of the punch being defined in the receiving space by the underside of the power transfer slide.
  • the rear arm of the lifting lever is released again. Under the dead weight of the punching tool, it sinks down from the receiving space and takes the upper end of the arm of the lifting lever that comes into contact with it down.
  • the invention is based on the object of designing and developing the known upper tool carrier in such a way that jams between the punching tool and the power transmission slide are systematically avoided.
  • the upper tool carrier according to the invention in which the above-mentioned object is achieved, is described by the features contained in the characterizing part of claim 1.
  • the punching tool when the power transmission slide is advanced, the punching tool is not only passive, under the action of its own gravity, but can also be actively lowered with the aid of the lifting lever, in the sense of positive control.
  • the basic principle of positive control for lifting the punch by means of the lifting lever can also be used for lowering the punch. For the rest, there are of course various design options for such positive control.
  • FIG. 1 shows, as a special, preferred exemplary embodiment of the invention, a machine tool in the form of a punch with a C-shaped machine body 1, only indicated, a lower tool carrier 2 formed or arranged on the machine body 1 with a lower tool 3 and one on the machine body 1
  • Upper tool carrier 4 arranged or executed above with an upper tool, here a punching tool 5. It is only indicated that on the upper tool carrier 4 or on the machine body 1 above the upper tool carrier 4 a drive head 6, for example in the form of a hydraulic cylinder piston Arrangement, sits, with the help of which the punch 5 can be lowered to the lower tool 3 during operation.
  • each punch 5 consists of a punch 7, a punch holder 8 and one Punching die 7 with union nut 9 connecting the punch holder 8.
  • the three punching tools 5, as shown in FIG. 2, are arranged as close as possible to one another.
  • Fig. 1 shows that the upper tool carrier 4 in the embodiment shown here initially has a carrier body 10 and a receiving plate 11. 3 makes it clear that tool guides 12 which are arranged next to one another and extend in the punching direction are provided for each punch 5 in the receiving plate 11. 1, 2 and 3 make it clear in connection with this that the upper tool carrier 4 has a closure cap 14 fastened to the carrier body 10, in particular and in the exemplary embodiment shown here pivotable about a pivot axis 13 on the carrier body 10. 1 and 2 finally show in connection that the upper ends of the punch 5 in the tool guides 12, limited in one direction by support flanges 15, are guided in the punching direction, here vertically.
  • the support flanges 15 can be clearly seen in FIG. 3. They serve to prevent the punching tools 5 from falling out of the tool guides 12 downwards.
  • receiving spaces 17 for the upper ends of the punching tools 5 are provided on the carrier body 10 above the tool guides 12 and below a force transmission surface 16.
  • the receiving spaces 17 are by means of power transmission slides which can be displaced essentially perpendicular to the punching direction 18 or the like. Can be bridged with the aid of actuators 19 designed here as pneumatic cylinder-piston units.
  • the force transmission surface 16 is arranged on the underside of the drive head 6. This technique ensures that only the punch 5 is actively moved downward during the downward stroke of the power transmission surface 16, the power transmission slide 18 bridging the associated receiving space 17, while the other two punching tools 5 can move back into the respectively assigned receiving space 17.
  • the lifting lever 20 is designed as a two-armed lever which extends around a pivot axis 21 on the carrier body 10 in a vertical direction, the punching direction enclosing plane is pivotable.
  • An arm 22 has a stroke control surface 23 which interacts with the side 24 of the power transmission slide 18 facing away from the receiving space 17. It is like the state of the art. When the power transmission slide 18 is withdrawn from the receiving space 17, the side 24 facing away presses the arm 22 downward via the stroke control surface 23 and finally runs over it (FIG. 5). As a result, the second arm 25 of the lifting lever 20 is raised and thus actively lifts the upper end of the punch 5 into the receiving space 17.
  • the punching tool 5 is shown here in dashed lines in FIG. 5.
  • a forced control is also implemented here for lowering the punch 5, namely by means of the lifting lever 20, the upper one
  • the end of the punch 5 can be actively lowered when the power transmission slide 18 is advanced from the receiving space 17. Every collision of the punch 5 with the power transmission slide 18 is thus systematically avoided.
  • the result explained above is achieved constructively in that the lifting lever 20 has a lowering control surface 27 which interacts with the side 26 of the power transmission slide 18 facing the receiving space 17 and the side 26 of the power transmission slide 18 facing the receiving space 17 on the Lowering control surface 27 of the lifting lever 20 comes to rest before the side 26 comes into contact with the upper end of the punching tool 5.
  • the structural design, in particular the inclination of the side 26 and the lowering control surface 27, is selected such that the lowering control surface 27 is run over by the side 26 of the power transmission slide 18 facing the receiving space 17 when the power transmission slide 18 is advanced.
  • the underside of the power transmission slide 18 thus also defines the lowering position of the punch 7.
  • the lowering control surface 27 requires a specific position relative to the side 26 of the power transmission slide 18.
  • the upper end of the punching tool 5 includes an end the lowering control surface 27 carrying control projection 28 projecting into the feed path of the power transmission slide 18 is formed.
  • the lifting lever 20 has a control head 29 and which encloses the upper end of the punching tool 5 on the punch 5 below the upper end has a pressure control surface 30 and that the control head 29 comes to bear on the pressure control surface 30 in a force-transmitting manner.
  • the punch 5 has a recess 31 which is open laterally below the upper end and in which a stroke control surface 32 and the pressure control surface 30 for the control head 29 are formed. Otherwise, as can be clearly seen here, the control head 29 is rounded off to reduce wear. Finally, it can be clearly seen that the recess 31 has an inlet channel 33 for the control projection 28 on the lifting lever 20. This is necessary in the exemplary embodiment shown here because the plate forming the upper end of the punch 5 is relatively thick and therefore the control projection 28 cannot pivot into the recess 31 below this plate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Punching Or Piercing (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Jigs For Machine Tools (AREA)
  • Passenger Equipment (AREA)
EP87115368A 1986-11-04 1987-10-21 Oberer Werkzeugträger für eine Stanze od. dgl. Expired - Lifetime EP0266625B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87115368T ATE72526T1 (de) 1986-11-04 1987-10-21 Oberer werkzeugtraeger fuer eine stanze od. dgl.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3637486A DE3637486C1 (de) 1986-11-04 1986-11-04 Oberer Werkzeugtraeger fuer eine Stanze od.dgl.
DE3637486 1986-11-04

Publications (3)

Publication Number Publication Date
EP0266625A2 EP0266625A2 (de) 1988-05-11
EP0266625A3 EP0266625A3 (en) 1990-01-10
EP0266625B1 true EP0266625B1 (de) 1992-02-12

Family

ID=6313103

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87115368A Expired - Lifetime EP0266625B1 (de) 1986-11-04 1987-10-21 Oberer Werkzeugträger für eine Stanze od. dgl.

Country Status (10)

Country Link
US (2) US4836009A (ja)
EP (1) EP0266625B1 (ja)
JP (1) JPS63123541A (ja)
AT (1) ATE72526T1 (ja)
BR (1) BR8705863A (ja)
CA (1) CA1302868C (ja)
DE (2) DE3637486C1 (ja)
ES (1) ES2029469T3 (ja)
GR (1) GR3004034T3 (ja)
MX (1) MX161210A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103433387A (zh) * 2013-08-28 2013-12-11 东风柳州汽车有限公司 冲压翻孔装置
CN106391854A (zh) * 2016-10-28 2017-02-15 安徽鲲鹏装备模具制造有限公司 一种折弯机的模条安装机构

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9174259B2 (en) 2011-01-19 2015-11-03 Ford Global Technologies, Llc Method and apparatus for sharp flanging and trimming sheet metal panels
CN104438860B (zh) * 2014-12-24 2016-03-02 安徽江淮汽车股份有限公司 冲压模具的冲压件托料装置及冲压模具
CN105499387A (zh) * 2015-12-19 2016-04-20 浙江黄岩冲模有限公司 跷跷板式上翻边冲压模具及其冲压方法
CN107866487A (zh) * 2017-10-10 2018-04-03 合肥常青机械股份有限公司 一种向上翻边翘翘板式运动机构
CN113211080A (zh) * 2021-05-14 2021-08-06 武鑫鑫 一种饮水机加工用卡扣折弯工装

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD40344A (ja) *
DE1004891B (de) * 1952-07-02 1957-03-21 Alois Jarma Dipl Ing Schnellwechseleinrichtung fuer Werkzeuge in Maschinen mit auf und ab gehendem Druckstoessel
DE1552618A1 (de) * 1966-04-14 1970-04-09 Peter Heck Vorrichtung zum Lochen von flaechenhaften Werkstuecken
IT944297B (it) * 1971-01-02 1973-04-20 Schloemann Ag Pressa a estrusione con testa girevole porta utensile trasla bile assialmente
SE423196B (sv) * 1977-06-21 1982-04-26 Pullmax Ab Anordning for verktygsvexling vid stansmaskiner
SU854515A1 (ru) * 1978-03-27 1981-08-18 Азовское специальное конструкторское бюро кузнечно-прессового оборудования и автоматических линий Устройство дл креплени пуансонов дл пробивки отверстий
CH627965A5 (en) * 1978-05-03 1982-02-15 Standard Telephon & Radio Ag Punching machine
DE2940661A1 (de) * 1979-10-06 1981-04-09 Fa. Muhr und Bender, 5952 Attendorn Werkzeugmaschine
DE3440093A1 (de) * 1984-11-02 1986-05-07 Fa. Muhr und Bender, 5952 Attendorn Werkzeugmaschine, insbesondere stanze

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103433387A (zh) * 2013-08-28 2013-12-11 东风柳州汽车有限公司 冲压翻孔装置
CN106391854A (zh) * 2016-10-28 2017-02-15 安徽鲲鹏装备模具制造有限公司 一种折弯机的模条安装机构
CN106391854B (zh) * 2016-10-28 2017-11-07 安徽鲲鹏装备模具制造有限公司 一种折弯机的模条安装机构

Also Published As

Publication number Publication date
BR8705863A (pt) 1988-06-14
DE3776684D1 (de) 1992-03-26
JPS63123541A (ja) 1988-05-27
EP0266625A2 (de) 1988-05-11
GR3004034T3 (ja) 1993-03-31
ES2029469T3 (es) 1992-08-16
CA1302868C (en) 1992-06-09
DE3637486C1 (de) 1988-03-31
EP0266625A3 (en) 1990-01-10
US4827758A (en) 1989-05-09
ATE72526T1 (de) 1992-02-15
MX161210A (es) 1990-08-20
US4836009A (en) 1989-06-06
JPH0474097B2 (ja) 1992-11-25

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