EP2184118A1 - Dévêtisseur étagé et procédé destiné à évacuer des pièces en tôle de machines de poinçonnage - Google Patents
Dévêtisseur étagé et procédé destiné à évacuer des pièces en tôle de machines de poinçonnage Download PDFInfo
- Publication number
- EP2184118A1 EP2184118A1 EP08019519A EP08019519A EP2184118A1 EP 2184118 A1 EP2184118 A1 EP 2184118A1 EP 08019519 A EP08019519 A EP 08019519A EP 08019519 A EP08019519 A EP 08019519A EP 2184118 A1 EP2184118 A1 EP 2184118A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- hold
- punching
- sheet metal
- down device
- 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
- 238000004080 punching Methods 0.000 title claims abstract description 48
- 239000002184 metal Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000007599 discharging Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 210000000078 claw Anatomy 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/12—Punching using rotatable carriers
-
- 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
- B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
- B21D28/265—Perforating, i.e. punching holes in sheets or flat parts with relative movement of sheet and tools enabling the punching of holes in predetermined locations of the sheet, e.g. holes punching with template
-
- 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
- B21D45/10—Combined ejecting and stripping-off devices
Definitions
- the invention relates to a remote hold-down for punching machines and a method for discharging sheet metal parts from punching machines using the remote hold-down.
- part flaps or rigid chutes located in the machine table. After a separation operation of the sheet metal part, the position of which is on the machine table so that it is above the part flap or the rigid chute after the separation process, slide on the part flap or the chute in corresponding receptacle. Smaller parts that are not above the partial flap or rigid chute can not be removed in this way.
- the machine table then moves further back until the center of gravity of the separated sheet metal part, which is not moving along, lies in front of the front edge of the machine table.
- the tool shell with the stamp is moved back to the top dead center at this time, and thereby lifts the hold-down.
- the separated sheet metal part is free, tilts off by gravity, and thus can be discharged to the front over a rigid chute.
- this process is not reliable, since the separated sheet metal part is not fixed prior to clamping by the hold-down during the movement of the machine table and thus can slip.
- the process is also time-consuming due to the many individual steps.
- the claimed objects and methods offer by clamping only the punched-sheet metal parts the ability to define the sheet metal parts defined a Ausschleusposition.
- Fig. 1a is a plan view of a remote hold-down 1.
- the hold-down consists of a base body 2, which has a circular shape.
- an opening 3 is provided, through which a stamp described later can pass.
- the opening 3 has a contour 4, which is rectangular with two short and two long sides, and is arranged centrally in the base body 2.
- two pins 6 are provided opposite, which engage in a corresponding receptacle in the punching machine described later, in order to prevent twisting of the hold-1.
- first edge 7 which is formed by the intersection of a first surface 8 and a connecting surface 9
- second edge 10 which is formed by the intersection of the connecting surface 9 and a plane in which a second surface 11 is formed
- the first edge 7 and the second edge 10 are congruent in the direction of a central axis 12 of the hold-down and the first plane and the second plane are connected by the connecting surface 9.
- the connecting surface 9 when the connecting surface 9 is not arranged parallel to the axis 12, but, for example, for manufacturing reasons, a Angle with the axis 12, the edge 7 and the edge 10 in the direction of the central axis 12 may not be congruent.
- the connecting surface 9 is bounded by the first edge 7 and the second edge 10 and extends in the region of the opening 3 along the contour 4 of the opening 3 on the side on which the first surface 8 is arranged adjacent to the opening 3. Outside the region of the opening 3, the connecting surface 9 extends in the direction of the outer circumferential surface 5, wherein the connecting surface 9 does not extend further in the direction in which the second surface 11 is arranged.
- the mounting position of the remote hold-down 1 is such that the first surface 8 and the second surface 11 come to lie down, and thus are arranged on a bottom 39 of the hold-1.
- the first plane in which the first surface 8 lies is different from the second plane in which the second surface 11 lies.
- the first and the second plane are parallel to each other and the first surface 8 is in the installed position about 0.5 mm to 1 mm lower, that is closer to the machine table, arranged as the second level eleventh
- Fig. 2 shows a punching tool 13, comprising a tool upper part 14 with an integrated remote hold-down 1 in an embodiment other than in Fig. 1a and 1b , and a tool lower part 15.
- the installation position of the upper tool part 14 in the punching machine is such that a punch shaft 16 points upwards, and the hold-down device 1 is oriented downwards.
- the tool upper part 14 has a punch 17.
- the punch 17 is connected via a fastening device 19 with the punch shaft 16.
- the punch 17 has a certain contour which corresponds to the shape of the desired Punching corresponds.
- the contour of an opening 18 in the remote hold-down 1, in contrast to the opening 3, in the Fig. 1a and Fig. 1b embodiment shown, is not arranged centrally in the base body, corresponds to the contour of the punch 17 or is greater than the contour of the punch 17.
- the hold-down device 1 is mounted axially displaceable in the direction of the axis 12.
- the fastening device 19 has a resilient element 38 which urges the hold-down 1 in a direction parallel to the axis 12, away from the punch shaft 16.
- the lower tool part 15 includes a die 20 which has an opening whose contour corresponds to the contour of the punch 17. However, the dimensions of the contour of the opening are larger by a few tenths of a millimeter than the dimensions of the contour of the punch 17 to produce a required kerf.
- the central axis 12 corresponds to the axis 12 of the upper tool part.
- the offset hold-down can also be multi-part in an alternative embodiment, with one part having the first surface 8 and another part having the second surface 11.
- the remote hold-down is either made of metal, or plastic, for example, made of the elastic plastic Eladur.
- a punching machine 21 for use of the remote hold 1, and for carrying out a method for discharging sheet metal parts is shown.
- An integral part of the punching machine 21 is a C-frame 22.
- the C-frame 22 is made of a torsionally rigid welded steel construction.
- a hydraulic unit 23 is provided, with which a plunger 25 is hydraulically driven.
- a lower tool holder 24 for receiving the lower tool part 15 of the punching tool 13 is provided on the lower inside of the C-frame 22 .
- the tool lower part 15 is rotatable about a first rotary drive 26 by 360 ° and lockable in any desired angular position.
- the plunger 25 On the upper inside of the C-frame 22, the plunger 25 is provided.
- the plunger 25 receives the tool upper part 14 of the punching tool 13 via the stamp shank 16 in a form-fitting and clearance-free manner.
- the plunger 25 is also rotatable by 360 ° and can be found in any angular position.
- For a second rotary actuator 27 is present.
- a drive device 28 is provided for the remote hold-down 1.
- the drive device 28 is designed as a single-acting hydraulic cylinder.
- the rotary actuators 26, 27, and the drive device 28 for the hold-1 are controlled by a machine control device, not shown, which is provided in a separate cabinet. Furthermore, a plunger control, as well as all linear actuators for moving a sheet 29 and actuators for special functions, such as the folding and folding up a partial flap 30, controlled by the machine control device.
- the control device has as input and output means a keyboard and a monitor. The control functions are performed by microcontrollers. Processing programs and operating parameters are stored in a memory area of the control device.
- the hold-down device 1 is mounted in a guide, not shown, and is moved by the drive device 28 independently of the plunger 25 down. The upward movement of the hold-down 1 is effected by the plunger 25.
- the control device controls the hold-down 1 so that is pressed with a defined force on the plate 29, and the sheet is clamped between the hold-down and the lower tool part 5.
- a machine table 31 On the lower inside of the C-frame 22, a machine table 31 is arranged, which has a transverse rail 32 with a linear magazine 33. On the cross rail 32 clamping claws 34 are arranged for holding the sheet 29. The clamping claws 34 can be secured at suitable locations on the transverse rail 32. The clamping claws 34 can be offset so that the sheet 29 is held securely, but the sheet 29 is not gripped on a surface to be machined. In the linear magazine 33 receptacles for several punching tools 13 are available. In front of the lower tool holder 24, the parts flap 30 is arranged centrally.
- the machine table 31 moves in a Y-direction together with the cross rail 32 to which the clamps 34 are fixed, with which the sheet 29 is held in a defined position, and the cross rail 32 moves in the X direction in the programmed Position, wherein the sheet 29 slides over the machine table 31. Then, a punching stroke is performed by the plunger 25. Following this, the next punching position is approached with the same principle.
- the punching tools 13 are automatically changed, controlled by the machine control device, changed.
- the cross rail 32 driven by a linear drive, not shown, moves into a position in an X direction, so that the X position of the tool 13 to be loaded corresponds to the X position of the lower tool holder 24.
- the cross rail 32 then moves together with the machine table 31, driven by a further linear drive, into a position in the Y direction in which the axis 12 of the lower tool part 15 and the upper tool part 14 coincide with a central axis of the lower tool holder 24 and the plunger 25 , so that the lower tool part 15 can be received in the lower tool holder 24, and the upper tool part 14 can be received in the plunger 25. If there is a tool in the plunger 25 and the lower tool holder 24, this is previously released to a free space in the linear magazine 33.
- Fig. 4a to 4c is a method for discharging sheet metal parts, explained here using the example of a residual strip of the sheet 29. It is not mandatory that notches 37 are present.
- Fig. 4a shows the separation process during the discharge of a residual strip 35.
- the remaining strip 35 is held at least by two, here three, clamping claws 34 and positioned by the movement of the cross rail 32 in a 1st step so that a portion 36 of the residual strip 35 with a maximum ausschleusbaren Length is separated in the third step, ie the desired separation point on the remaining strip 35 is positioned in the axis 12 of the punch 13.
- the residual strip 35 is positioned so that the desired separation point on the remaining strip 35 is below the punch 17.
- the tool upper part 14 and the lower tool part 15 are rotated by the first and second rotary drive 26, 27 so that the first surface 8 of the stepped down holder 1 does not lie above the remaining strip 35, but only over the portion 36 to be separated located.
- the stepped down holder 1 is then shut down in a third step by the drive device 28, so that the portion 36 is clamped by the first surface 8 of the stepped down holder 1 and the lower tool part 15.
- the residual strip 35 on the opposite side of the opening 3, however, is not clamped because the second surface 11 is higher than the first surface 8.
- the tool upper part 14 is moved by the plunger 25 at least as far down until the punch 17 has punched the remaining strip 35.
- this step is carried out only by the shutdown of the plunger 25. With the shutdown of the tool upper part 14 of the portion 36 is separated from the remaining strip 35.
- a lower position of the stepped down holder 1 and the tool top 14 is maintained so that the portion 36 remains clamped.
- the section 36 is retained further, but the residual strip 35 is not clamped due to the higher-lying second surface.
- an upward movement of the plunger would also cause an upward movement of the blank holder 1, which is why the tool upper part 14 remains in a lower position in which the remote hold-down 1 is not moved upward, and the stepped-down is pressed down by the drive device 28 of the blank holder 1.
- Fig. 4c shows an executed fifth step of the method in which the machine table is moved with the cross rail to the rear.
- the punching tool 13 remains in the same position as in FIG Fig. 4a shown.
- the clamping claws 34 are moved together with the cross rail 32 and the machine table 31 to the rear in the Y direction ( Fig. 3 ), in this illustration upward, proceed.
- the remaining strip 35 is also moved backwards, and a movement of the section 36 in the next method step thus does not lead to a collision.
- the remaining strip can also be moved in the X direction ( Fig. 3 ). It can be seen here that the section 36 does not lie above the partial flap 30, that is, it can not yet be discharged.
- the Fig. 4b shows the section 36 after an optional method step 5a, in which the punching tool 13, the upper tool part 14 and the lower tool part 15, were rotated.
- the section 36 now lies almost completely over the partial flap 30.
- the center of gravity of the section 36 which can be assumed to be located centrally in section 36, lies centrally above the partial flap 30. No region of the section 36 projects beyond the partial flap 30. If the section 36 or a sheet metal part to be ejected already over the flap or another suitable Ausschleusposition, this step can be omitted.
- the upper tool part 14, and thus also the integrated offset downholder 1 is moved up again, or the moved down by the drive device 28 down hold-down 1 by the plunger 25 taken up.
- the drive device 28 down hold-down 1 by the plunger 25 taken up.
- the component can be oriented by turning in method step 5a so that the same sheet metal parts, which however are manufactured in different orientations from the sheet 29, are brought into the same orientation.
- a simple automatic removal system can be used because the sheet metal parts to be rejected are always in the same position in the same orientation.
- the machine table 31 For discharging of larger sheet metal parts, the machine table 31 is moved so far to the rear in the fifth method step that the sheet metal part to be rejected lies so far in front of the machine table 31 that it tilts on its own.
- a rigid chute is mounted, over which slides the sheet metal part after lifting the remote hold down 1.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT08019519T ATE524252T1 (de) | 2008-11-07 | 2008-11-07 | Abgesetzter niederhalter und verfahren zum entfernen von blechteilen aus stanzmaschinen |
PL08019519T PL2184118T3 (pl) | 2008-11-07 | 2008-11-07 | Odsadzony dociskacz i sposób usuwania części z blach z wykrawarek |
EP08019519A EP2184118B1 (fr) | 2008-11-07 | 2008-11-07 | Dévêtisseur étagé et procédé destiné à évacuer des pièces en tôle de machines de poinçonnage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08019519A EP2184118B1 (fr) | 2008-11-07 | 2008-11-07 | Dévêtisseur étagé et procédé destiné à évacuer des pièces en tôle de machines de poinçonnage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2184118A1 true EP2184118A1 (fr) | 2010-05-12 |
EP2184118B1 EP2184118B1 (fr) | 2011-09-14 |
Family
ID=40361701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08019519A Active EP2184118B1 (fr) | 2008-11-07 | 2008-11-07 | Dévêtisseur étagé et procédé destiné à évacuer des pièces en tôle de machines de poinçonnage |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2184118B1 (fr) |
AT (1) | ATE524252T1 (fr) |
PL (1) | PL2184118T3 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012028549A1 (fr) * | 2010-08-31 | 2012-03-08 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Procédé d'usinage d'une pièce sur une machine-outil |
EP2669024A1 (fr) | 2012-05-30 | 2013-12-04 | TRUMPF Werkzeugmaschinen GmbH + Co. KG | Machine-outil et procédé destinés à l'évacuation d'une partie d'une pièce |
EP3299094A1 (fr) * | 2016-09-26 | 2018-03-28 | TRUMPF Werkzeugmaschinen GmbH + Co. KG | Procédé de fabrication d'une pièce à usiner et outil de découpe/manipulation destiné à exécuter le procédé |
CN108188251A (zh) * | 2018-03-02 | 2018-06-22 | 俞权锋 | 一种圆环板五金件自动冲压加工装置 |
FR3121622A1 (fr) * | 2021-04-12 | 2022-10-14 | Siif | Tete de prehension et de poinçonnage d’une piece permettant son entrainement en rotation pour son usinage |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3979985A (en) | 1973-08-06 | 1976-09-14 | U.S. Amada, Ltd. | Sheet transfer between a turret punch press and an adjacent apparatus |
JPS63256233A (ja) * | 1987-04-15 | 1988-10-24 | Matsushita Electric Ind Co Ltd | プレス金型装置 |
JP2004283868A (ja) | 2003-03-24 | 2004-10-14 | Amada Co Ltd | パンチ金型及びその金型を使用するパンチ加工方法 |
US20080092713A1 (en) * | 2004-11-19 | 2008-04-24 | Amada Company, Limited | Punching Die |
-
2008
- 2008-11-07 EP EP08019519A patent/EP2184118B1/fr active Active
- 2008-11-07 AT AT08019519T patent/ATE524252T1/de active
- 2008-11-07 PL PL08019519T patent/PL2184118T3/pl unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3979985A (en) | 1973-08-06 | 1976-09-14 | U.S. Amada, Ltd. | Sheet transfer between a turret punch press and an adjacent apparatus |
JPS63256233A (ja) * | 1987-04-15 | 1988-10-24 | Matsushita Electric Ind Co Ltd | プレス金型装置 |
JP2004283868A (ja) | 2003-03-24 | 2004-10-14 | Amada Co Ltd | パンチ金型及びその金型を使用するパンチ加工方法 |
US20080092713A1 (en) * | 2004-11-19 | 2008-04-24 | Amada Company, Limited | Punching Die |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8887366B2 (en) | 2010-08-31 | 2014-11-18 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Processing workpieces on machine tools |
CN103237612A (zh) * | 2010-08-31 | 2013-08-07 | 通快机床两合公司 | 用于在工具机上加工工件的方法 |
WO2012028549A1 (fr) * | 2010-08-31 | 2012-03-08 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Procédé d'usinage d'une pièce sur une machine-outil |
CN103237612B (zh) * | 2010-08-31 | 2015-03-18 | 通快机床两合公司 | 用于在工具机上加工工件的方法 |
US9205481B2 (en) | 2012-05-30 | 2015-12-08 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Moving workpiece parts on machine tools |
CN103506518A (zh) * | 2012-05-30 | 2014-01-15 | 通快机床两合公司 | 机床和用于推出工件部分的方法 |
EP2669024A1 (fr) | 2012-05-30 | 2013-12-04 | TRUMPF Werkzeugmaschinen GmbH + Co. KG | Machine-outil et procédé destinés à l'évacuation d'une partie d'une pièce |
US9446442B2 (en) | 2012-05-30 | 2016-09-20 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Moving workpiece parts on machine tools |
EP3299094A1 (fr) * | 2016-09-26 | 2018-03-28 | TRUMPF Werkzeugmaschinen GmbH + Co. KG | Procédé de fabrication d'une pièce à usiner et outil de découpe/manipulation destiné à exécuter le procédé |
JP2018051627A (ja) * | 2016-09-26 | 2018-04-05 | トルンプ ヴェルクツォイクマシーネ ゲーエムベーハー+シーオー.ケージー | 工作物の製造方法、および本方法を実施するための穴開け処理ツール |
US10512963B2 (en) * | 2016-09-26 | 2019-12-24 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Methods and punch handling apparatuses for the production of a workpiece |
US20200122217A1 (en) * | 2016-09-26 | 2020-04-23 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Methods and Punch Handling Apparatuses for the Production of a Workpiece |
US10799933B2 (en) | 2016-09-26 | 2020-10-13 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Methods and punch handling apparatuses for the production of a workpiece |
CN108188251A (zh) * | 2018-03-02 | 2018-06-22 | 俞权锋 | 一种圆环板五金件自动冲压加工装置 |
FR3121622A1 (fr) * | 2021-04-12 | 2022-10-14 | Siif | Tete de prehension et de poinçonnage d’une piece permettant son entrainement en rotation pour son usinage |
Also Published As
Publication number | Publication date |
---|---|
EP2184118B1 (fr) | 2011-09-14 |
ATE524252T1 (de) | 2011-09-15 |
PL2184118T3 (pl) | 2012-02-29 |
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