EP1781431B1 - Stanzmaschine mit federnd gelagerter werkstückauflage - Google Patents

Stanzmaschine mit federnd gelagerter werkstückauflage Download PDF

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Publication number
EP1781431B1
EP1781431B1 EP05774074A EP05774074A EP1781431B1 EP 1781431 B1 EP1781431 B1 EP 1781431B1 EP 05774074 A EP05774074 A EP 05774074A EP 05774074 A EP05774074 A EP 05774074A EP 1781431 B1 EP1781431 B1 EP 1781431B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
punching machine
die
spring
support
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.)
Active
Application number
EP05774074A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1781431A1 (de
Inventor
Peter Bytow
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.)
Trumpf Werkzeugmaschinen SE and Co KG
Original Assignee
Trumpf Werkzeugmaschinen SE and Co 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 Trumpf Werkzeugmaschinen SE and Co KG filed Critical Trumpf Werkzeugmaschinen SE and Co KG
Publication of EP1781431A1 publication Critical patent/EP1781431A1/de
Application granted granted Critical
Publication of EP1781431B1 publication Critical patent/EP1781431B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds
    • 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 a punching machine with a tool holder for a punching tool and a die, which has a cutting edge on which the punching tool inrangshubides and in pollhubides is moved past, wherein at least one supported by at least one spring element workpiece support is provided which is arranged in the region of the die is according to the preamble of claim 1, and a method according to the preamble of claim 15.
  • the US 4,779,443 discloses a pressing device for punching and forming a sheet.
  • the sheet to be machined is placed in a press unit and processed by means of various processing tools, without causing a movement of the sheet in the sheet plane relative to the pressing device.
  • a pressure-controlled cushion cylinder piston is arranged in the area of the lower tool holder.
  • the object of the present invention is to provide a punching machine on which workpieces of different weights can be processed without damage.
  • a punching machine of the type mentioned in which the spring force of the workpiece support supporting spring element is adjustable and the spring element and the workpiece support are arranged on a workpiece table in the vicinity of a die holder.
  • the punching machine can be easily adjusted to workpieces of different weights.
  • the spring force can be adjusted so that the workpiece is securely spaced from the cutting edge during transport, but the spring force is not so great that it comes to a deformation of the workpiece during the punching process.
  • the spring force is thus selected in each case so that the workpiece is spaced from the die with itself in a starting position punch located in yielding punch die the spring elements and the workpiece is pressed by the punch, in particular flat, against the die before the stamped part is punched in a further movement of the punch in Befest Trentshubraum.
  • the spring elements are arranged in the die itself and are based on a main body of the die. This means that corresponding spring-mounted tool supports must be provided on each die. This is relatively expensive. In addition, such arranged spring elements are difficult to access and controllable, so that an adjustment of the spring force is not possible. It is therefore advantageous to arrange the spring elements with the workpiece support on the workpiece table, so that they are independent of the die. At the workpiece table, a corresponding device for controlling the spring elements and thus to adjust the spring force can be provided.
  • the arrangement of the workpiece support in the area of the die, i. near the die, has the advantage that the adjustment does not have to be made on the entire workpiece table. It is sufficient to protect the workpiece against scratching locally in the area of the die.
  • Under an arrangement in the region of the die is both an arrangement on the die itself, wherein the spring element is supported on the main body of the die, as well as an arrangement outside the die on the workpiece table, wherein the spring element is supported on the workpiece table or the base of the workpiece table to understand.
  • the adjustment of the spring element can be done by, for example, a spring is biased differently.
  • spring elements can be provided that the spring constant is variable.
  • spring elements a variety of components are conceivable, for example, spiral or Tel lerfedern and rubber spring elements can be used as spring elements.
  • a stop may be provided which limits the movement of the spring element or the workpiece support in the return direction.
  • the spring element is designed as an air spring element.
  • the spring constant of such a spring element can be adjusted particularly easily and accurately via the air pressure.
  • a pressure chamber may be provided, in which a the workpiece support ab micndes and cushioning air cushion is formed.
  • the workpiece support comprises a supported by the spring element support element bearing and a support member mounted therein.
  • support elements can be provided which have a low coefficient of friction.
  • the support member may be formed as a roller, so that the workpiece with little resistance along the workpiece support can be moved.
  • the support element bearing is designed as a ball bearing and the support element as a ball.
  • the workpiece is movable with low friction in all directions along the workpiece table.
  • Such a spring-mounted workpiece support is particularly resistant to wear.
  • the supported by the spring element workpiece support comprises one or more brushes.
  • a brush can be attached as a support element directly to the spring element and / or be supported by this.
  • one or more brushes could be arranged in a support member bearing formed as a brush holder and thus represent the support element.
  • the brush holder could be supported by the spring element.
  • the spring force of the spring element is manually adjustable.
  • An operator of the punching machine can therefore, knowing the workpiece weight, adjust the spring force of the spring element by manual actuation of setting or operating means, for example a pressure control valve, and thus adapt the punching machine to the workpiece to be machined.
  • the handling of the punching machine is simplified when the spring force is automatically adjustable.
  • the weight of a workpiece can be detected, in particular automatically detected, and on this basis, the spring force can be set automatically without the intervention of an operator.
  • the weight or an identifier, for example, the workpiece thickness, of a workpiece to be machined to which the workpiece weight is assigned may be input, so that a controller can adjust the spring force based on this information.
  • the spring force can be adapted during the machining of a workpiece.
  • the spring force is adjusted manually with decreasing weight of the workpiece.
  • the spring force is automatically adjusted to the weight of the workpiece during machining.
  • the weight loss of the workpiece with each punching process is known and based on this knowledge, the spring force is adjusted during processing.
  • the weight of the workpiece during processing may be continuous or quasi-continuous, i. after each or a predetermined number of punching operations, is detected and adjusted due to the detected weight of the workpiece, the spring force or adjusted so that scratching of the workpiece base and bending of the workpiece is avoided during the punching process.
  • the automatic adjustment of the spring force is particularly possible if weight-detecting means are provided for detecting the weight of a workpiece to be machined.
  • the spring force can also be adjustable so that the workpiece is raised after machining and before the process. Accordingly, before the punching operation, the spring force can be reduced, so that the workpiece lays on the die. After the punching process, the spring force can be increased so that the workpiece is lifted off the die sufficiently to prevent scratching in the subsequent displacement of the workpiece. By adjusting the spring force so a lifting movement of the support elements can be controlled.
  • the weight-detecting means are connected to a controller for adjusting the spring force.
  • the controller controls this setting means, which depend on the nature of the spring element.
  • the compressor or a valve for generating a specific pressure in the pressure chamber can be provided as setting means, for example. If, furthermore, a sensor for detecting the pressure in the pressure chamber is provided, a feedback to the control can take place, so that the pressure in the pressure chamber and thus the spring force of the spring element can be regulated.
  • a sensor for detecting the pressure in the pressure chamber is provided, a feedback to the control can take place, so that the pressure in the pressure chamber and thus the spring force of the spring element can be regulated.
  • Such a scheme is also conceivable for any other type of spring element.
  • a workpiece table on which the workpiece supports are arranged can often be divided into different segments, some of which can move relative to the matrix recording. In such punching machines, it is easier to provide multiple tool supports.
  • a workpiece table may be provided, on which the die is arranged, wherein the workpiece table outside the die and the area in which one or more resiliently mounted workpiece supports are arranged, is designed as a brush table.
  • the workpiece table is formed in this area as a ball bearing table.
  • larger workpieces can be moved relative to the punch and the die.
  • the workpiece is also supported outside the die area to protect it from damage.
  • lifting or resiliently supporting the workpiece in order to prevent scratching of the underside of the workpiece due to a ridge on the cutting edge of the die takes place only in the area of the die.
  • a punching machine 1 has a C-shaped machine frame 2 with an upper frame leg 3 and a lower frame leg. 4
  • a drive 5 is mounted for a punching tool in the form of a punch or for a provided with the punch tool storage 6.
  • the tool bearing 6 is in common with the punch in the direction of außshubides 7 or remindhubides 8 rectilinearly movable. Movements in the direction of the machining stroke direction 7 or the return stroke direction 8 are performed by the tool bearing 6 and the punch at the working strokes for machining workpieces and at subsequent work strokes return strokes.
  • the punch acts together with a punching tool in the form of a punching die 10.
  • a punching tool in the form of a punching die 10.
  • This is integrated into a workpiece table 11, which in turn is mounted on the lower frame leg 4 of the punching machine 1.
  • the required relative to the workpiece punch machining relative movement of the sheet 9 relative to the punch and the punching die 10 are performed by means of a housed in a throat space 12 of the machine frame 2 coordinate guide 13 of conventional design.
  • a controller 14 is provided for controlling the punching machine.
  • FIG. 2 is a plan view of a punching tool and the surrounding area shown.
  • the die 10 In a trained as a die holder 15 tool holder the die 10 is held.
  • the die 10 has a circular cutting edge 16 which delimits a die opening 17.
  • the die edge 16 is aligned with a die support surface 18.
  • a punch is moved past the cutting edge 16 during the punching operation so that it projects into the die opening 17. Through the die opening 17 the punched out part falls.
  • six workpiece supports 20 are arranged in the exemplary embodiment.
  • the workpiece supports 20 comprise a support element mounting 21, in which a bearing element 22 designed as a ball is mounted.
  • the workpiece supports 20 are resiliently supported or supported, the spring force of the in the Fig. 2 invisible spring element is adjustable.
  • the workpiece table 11 is provided with brushes 23 which support a workpiece, wherein the support height or the compliance of the brushes 23 is not variable.
  • Fig. 3 According to the sectional view of Fig. 3 are arranged on workpiece table segments 11a, 11b workpiece supports 20, each comprising a support element bearing 21 and a support member 22.
  • the workpiece supports 20 are supported by a spring element 25, wherein the spring element 25 comprises a pressure chamber 26 with an air cushion.
  • the pressure chambers 26 are supplied via compressed air lines 27 with compressed air.
  • the workpiece supports 20 are arranged in the immediate vicinity of the die 10, which is held by the die holder 15.
  • the support members 22 are aligned with the free ends of the brushes 23 when not punched. During the punching process, the support members 22 are movable together with the support element bearings 21 inmissshubides 7 against an effected by the spring elements 25 adjustable restoring force.
  • the spring elements 25 are based on the base of the workpiece table 11.
  • the work table segment 11a is designed to be adjustable in height in order to avoid the claws of the coordinate guide 13 and to be able to supply the workpiece substantially horizontally to the die area
EP05774074A 2004-08-26 2005-08-22 Stanzmaschine mit federnd gelagerter werkstückauflage Active EP1781431B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202004013336U DE202004013336U1 (de) 2004-08-26 2004-08-26 Stanzmaschine mit federnd gelagerter Werkstückauflage
PCT/EP2005/009036 WO2006021395A1 (de) 2004-08-26 2005-08-22 Stanzmaschine mit federnd gelagerter werkstückauflage

Publications (2)

Publication Number Publication Date
EP1781431A1 EP1781431A1 (de) 2007-05-09
EP1781431B1 true EP1781431B1 (de) 2012-01-18

Family

ID=33395564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05774074A Active EP1781431B1 (de) 2004-08-26 2005-08-22 Stanzmaschine mit federnd gelagerter werkstückauflage

Country Status (7)

Country Link
US (2) US7467534B2 (zh)
EP (1) EP1781431B1 (zh)
JP (1) JP5015777B2 (zh)
CN (1) CN100562382C (zh)
AT (1) ATE541654T1 (zh)
DE (1) DE202004013336U1 (zh)
WO (1) WO2006021395A1 (zh)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE458579T1 (de) * 2007-06-30 2010-03-15 Trumpf Werkzeugmaschinen Gmbh Werkzeugmaschine und verfahren zum bearbeiten eines werkstückes
WO2009065431A1 (de) * 2007-11-24 2009-05-28 Trumpf Werkzeugmaschinen Gmbh + Co.Kg Bürstensegmentband
US20120054997A1 (en) * 2010-03-09 2012-03-08 International Engine Intellectual Property Company Process and system for disassembling fuel injector
USD666637S1 (en) * 2010-07-14 2012-09-04 Trumpf Werkzeugmaschinen Gmbh+Co. Kg Machine tool
JP2013091080A (ja) * 2011-10-26 2013-05-16 Amada Co Ltd ワーク移送方法及びワーク移送装置
CN103611801B (zh) * 2013-11-18 2015-08-26 甘宁 一种小型闭合工件成型装置
USD744552S1 (en) * 2014-05-28 2015-12-01 Trumpf Gmbh + Co. Kg Sheet metal processing machine
USD745071S1 (en) * 2014-05-28 2015-12-08 Trumpf Gmbh + Co. Kg Sheet metal processing machine
USD745072S1 (en) * 2014-05-28 2015-12-08 Trumpf Gmbh + Co. Kg Sheet metal processing machine
JP6444113B2 (ja) * 2014-09-25 2018-12-26 株式会社放電精密加工研究所 プレス成形システム及びプレス成形方法
CN106493779B (zh) * 2016-12-12 2018-04-13 安徽省东升食品有限公司 一种家用块状香肠切割夹持机构
CN107839006A (zh) * 2017-11-08 2018-03-27 镇江市丹徒区顺发船舶螺旋桨有限公司 一种可调节式的螺旋桨打孔设备
USD919680S1 (en) * 2018-12-05 2021-05-18 Tormach, Inc. Mill
CN109590398B (zh) * 2019-01-30 2020-04-28 福建渃博特自动化设备有限公司 一种板件调平方法及终端
CN113477866B (zh) * 2021-07-07 2023-07-28 扬州市华胜铸造有限公司 一种金属铸造设备

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US2772735A (en) * 1953-10-09 1956-12-04 Continental Can Co Multiple slide press for cutting sheet metal parts
JPS6016845B2 (ja) * 1978-12-07 1985-04-27 川崎製鉄株式会社 厚板の圧延方法
JPS6313632A (ja) 1986-07-03 1988-01-20 Hideo Hoshi 複合プレス金型装置
JPH0240406A (ja) * 1988-07-29 1990-02-09 Noritz Corp 液体燃料燃焼装置
JPH04190934A (ja) * 1990-11-22 1992-07-09 Seiko Epson Corp 数値制御プレス装置の金型
JP2722937B2 (ja) * 1992-04-07 1998-03-09 トヨタ自動車株式会社 プレス機械のしわ押え荷重測定装置
JPH07256367A (ja) 1994-03-18 1995-10-09 Amada Co Ltd 板材加工機におけるブラシテーブル
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JP3297599B2 (ja) * 1996-02-13 2002-07-02 株式会社アマダ 連続切断金型
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DE29702699U1 (de) 1997-02-17 1997-04-10 Trumpf Gmbh & Co Matrize an einer Stanzmaschine
JPH11290969A (ja) * 1998-04-08 1999-10-26 Amada Co Ltd タレットパンチプレス、及びこのタレットパンチプレスの使用方法
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Also Published As

Publication number Publication date
US7467534B2 (en) 2008-12-23
ATE541654T1 (de) 2012-02-15
DE202004013336U1 (de) 2004-10-28
CN100562382C (zh) 2009-11-25
CN101048242A (zh) 2007-10-03
US7757535B2 (en) 2010-07-20
US20090095046A1 (en) 2009-04-16
US20070175264A1 (en) 2007-08-02
WO2006021395A1 (de) 2006-03-02
EP1781431A1 (de) 2007-05-09
JP5015777B2 (ja) 2012-08-29
JP2008510626A (ja) 2008-04-10

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