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EP2184116A1 - Procédé destiné à évacuer des éléments en tôle de machines de poinçonnage - Google Patents

Procédé destiné à évacuer des éléments en tôle de machines de poinçonnage Download PDF

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Publication number
EP2184116A1
EP2184116A1 EP08019520A EP08019520A EP2184116A1 EP 2184116 A1 EP2184116 A1 EP 2184116A1 EP 08019520 A EP08019520 A EP 08019520A EP 08019520 A EP08019520 A EP 08019520A EP 2184116 A1 EP2184116 A1 EP 2184116A1
Authority
EP
European Patent Office
Prior art keywords
punch
tool
sheet metal
metal part
punching
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
Application number
EP08019520A
Other languages
German (de)
English (en)
Other versions
EP2184116B1 (fr
Inventor
Wolfgang Laib
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
Priority to AT08019520T priority Critical patent/ATE515335T1/de
Priority to PL08019520T priority patent/PL2184116T3/pl
Priority to EP08019520A priority patent/EP2184116B1/fr
Publication of EP2184116A1 publication Critical patent/EP2184116A1/fr
Application granted granted Critical
Publication of EP2184116B1 publication Critical patent/EP2184116B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/14—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by turning devices, e.g. turn-tables
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/28—Associations of cutting devices therewith
    • B21D43/282—Discharging crop ends or the like

Definitions

  • the invention relates to a method for discharging sheet metal parts from punching machines.
  • the use of handling systems with grippers is made difficult on the one hand by the different sizes of the parts, and on the other hand by different orientations, even with the same parts.
  • One way to unload the parts from the machine is the use of handling systems with suction pads.
  • the use of these grippers is problematic in sheet metal parts with punched, especially in this area of the dimensions.
  • the process offers the possibility of removing the sheet metal parts from the punching machine via the parts flap.
  • a punching machine 1 for carrying out a method for discharging sheet metal parts is shown.
  • An essential part of the punching machine 1 is a C-frame 2.
  • the C-frame 2 consists of a torsion-resistant welded steel construction.
  • a hydraulic unit 3 is provided, with which a plunger 6 is hydraulically driven.
  • the drive of the plunger may also be provided by other drive means, e.g. an electric drive, done.
  • a lower tool holder 4 On the lower inside of the C-frame 2, a lower tool holder 4 is provided for receiving tool lower parts 5 of later-described punching tools.
  • the lower tool part 5 is rotatable about a first, not shown rotary drive in the X-Y plane through 360 ° and lockable in any angular position.
  • the plunger 6 On the upper inside of the C-frame 2, the plunger 6 is provided.
  • the plunger 6 receives a tool upper part 7 of the punching tool.
  • the plunger 6 is also rotatable by 360 ° and can also be found in any angular position. For a second, not shown rotary drive is available.
  • the rotary actuators 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 drives for moving a sheet 8 and actuators for special functions, such as the folding and folding up a partial flap 9, 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 control device controls the plunger 6 so that a predefined stroke is moved, and the position can be maintained, so that a defined distance between the upper tool part 7 and the lower tool part 5 is adjustable. Thus, a defined progress of a separation process of the sheet 9 can be adjusted.
  • a machine table 10 On the lower inside of the C-frame 2 is a machine table 10, which has, centrally between its front end and the lower tool holder 4, the partial flap 9, and, arranged rear, a cross rail 11 with a linear magazine 12.
  • clamping claws 13 are arranged for holding the sheet 8.
  • the clamping claws 13 can be attached to the cross rail 11 at suitable locations.
  • the clamping claws can be offset so that the sheet 8 is held securely, but the sheet 8 is not gripped on a surface to be machined.
  • recordings for several punching tools 14 are available.
  • the machine table 10 moves in a Y-direction together with the cross rail 11 to which the clamps 13 are fixed, with which the sheet 8 is held in a defined position, and the cross rail 11 moves in the X direction in the defined Position, with the sheet 8 over the machine table 10 slides. Then, a punching stroke is performed by the plunger 6. Following this, the next punching position is approached according to the same principle.
  • the punching tools 14 are automatically changed, controlled by the machine control device, changed.
  • the cross rail 11, driven by a linear drive, not shown, moves into a position in an X direction, so that the X position of the tool to be loaded corresponds to the X position of the lower tool holder 4.
  • the cross rail 11 then moves together with the machine table 10, driven by a further linear drive, in a position in the Y direction in which a center axis of the lower tool part 5 and the upper part 7 with a central axis of the lower tool holder 4 and the plunger 6 match so that the lower tool part 5 can be received in the lower tool holder 4, and the upper tool part 7 can be accommodated in the plunger 6. If a tool is present in the plunger 6 and the lower tool holder 4, this is previously given to a free space in the linear magazine.
  • the punching tool 14 is shown in an embodiment capable of punching at two different positions without moving the sheet 8, or changing the tool.
  • the upper tool part 7 is received in a form-fitting and play-free manner in the plunger 6 via the stamp shank 16. With the aid of a sliding block 17, which is also in a positive, play-free engagement with the plunger 6, the upper tool part 7 can be positioned about an axis 18 in any orientation.
  • a Stamp 15 provided at the bottom of the upper tool part 7 .
  • the stamp has a rectangular contour with a defined width and thickness.
  • the lower tool part 5 receives a die 19.
  • two openings 20a, 20b are provided. These are symmetrical to an axis 21, about which the tool lower part 5 can be rotated, offset by 180 °.
  • the contour of the openings 20a, 20b in the die 19 correspond to the contour of the punch 15, but are larger in size, depending on the sheet thickness to be processed, by a few tenths of a millimeter to produce a required cutting gap.
  • the lower tool part 5 is received by its contour in the lower tool holder 4 positively and without play.
  • the lower tool part 5 can be positioned rotated about an axis 21 in any orientation.
  • the punching tool 14 is designed so that the punch 15 of the tool top part 7, as shown in the left-hand illustration, fits into the opening 20b of the die in one position, and after a rotation of 180 °, the punch 15 into the other opening 20a of FIG Die fits.
  • a rectangular punched in the intermediate sheet 8 FIG. Fig. 1 ).
  • the upper tool part not only one, but a plurality of stamp.
  • the desired stamp is then activated for the machining process.
  • the corresponding matrices are provided to the punches and the upper tool and the lower part of the tool are rotated according to the pitch angle.
  • the contour of the punches and the dies can be executed except in a rectangular shape in one, in the context of the technical possibilities, any shape.
  • Fig. 3a to 3d is a method for discharging a sheet metal part, explained here using the example of a residual strip of the sheet 8.
  • a first punching operation, or a separation process in the discharge of a residual strip 22 is shown.
  • the remaining strip 22 of the sheet 8 is held by a skeleton-free processing by at least two clamping claws 13.
  • the remaining strip is positioned in a first method step so that the remaining strip comes to lie completely below the punch 15 of the punching tool with regard to its width (Y direction).
  • the distance in the longitudinal direction (X-direction) to the nearest end is to be selected so that a section 23 is separated, which has a length up to the size of the partial flap.
  • notches shown in the remaining strips are not mandatory.
  • the residual strip 22, and thus the portion 23 to be separated and slipped off, are positioned in a region of the rotation axis 18, 21.
  • the tool upper part 7 moves down, and by the punch 15 and the opening 20a in the die 19 is in a first working position from the remaining strip 22, a piece of sheet metal, a so-called stamped, punched out whose width (in the X direction) almost identical with the thickness (in the X direction) of the stamp is.
  • the width (in the Y direction) of the punch 15 is greater than the width (in the Y direction) of the residual strip 22 at the location where the punching is performed.
  • the section 23 is thereby separated from the residual strip 22.
  • the stamping like other small punching waste, falls through an opening in the die down into a container.
  • the upper tool part 7 then moves back to its upper position.
  • the remnant strip 22 and the section 23 are moved in neither the X nor the Y direction.
  • Fig. 3b is the second punching and the ejection shown.
  • the upper tool part 7 of the punching tool 14 is rotated by 180 ° about the axis 18 in a second working position, and the upper tool part 7 is moved down again.
  • a second punch-out is produced by the punch by punching out a further punching tool.
  • the width (in the Y direction) of the punch 15 is smaller than the width (in the Y direction) of the residual strip at the location where the punching is performed.
  • the tool upper part 7 retains the lower position in a third method step, and the punch 15 remains in the opening 20b of the die 19, so that the punch 15 in the cut-out in the section 23 forms a positive connection between the punching tool 14 and generated in section 23.
  • the movement of the tool upper part 7 can be controlled in an alternative 2nd method step so that the downward movement of the tool upper part is stopped when the punch 15 the section 23 touched and between the punch 15, the section 23 and the tool lower part 5 is a non-positive connection.
  • This allows a damage-free surface, which is not a priority with residual strips 22, but allows for further use good parts a discharge without damage.
  • the width of the punch 15 is less than the width of sheet metal part, here the remaining strip 22. In this case, the coincidence of the contour of the punch and the die is not required.
  • the section 23 is only punched. This means that the movement of the upper tool part 7 is stopped when the underside of the punch 15 has penetrated approximately half the sheet thickness and only a portion of the sheet thickness has penetrated into the die 19. After the fourth method step described below, the stopped movement can then be continued up to the bottom dead center and thus a punching required for a component can be completed. For the section 23 of the residual strip 22 this has no relevance.
  • the punch and the die with which the portion 23 is cut off have a shape and orientation such that, with respect to the axis 18, 21, the cutout on the side of the portion 23 results in a smaller opening than on the side of FIG ReststMails 22, the punch and the die can be arranged centrally to the axis 18, 21.
  • the contour of the punch on the side of the portion 23 then outside the contour of the punch, so is greater than the punch, and therefore can clamp the portion 23 in the second process step.
  • Fig. 3c It is shown how the remnant strip 22 is moved away from the section 23 held by the punching tool by means of the clamping claws 13 provided on the cross rail 11 and holding the residual strip 22 rearwardly in the Y direction. This retraction is required to prevent a collision between the residual strip 22 and the section 23 moved in the subsequently described method step 4. In other shaped punched out, in which no collision occurs in a 4th process step, the free driving is not required.
  • Fig. 3d shows the tool 14 with the positive or non-positive connected to the punching tool 15 section 23 after step 4.
  • the punch 14 is rotated by the lower tool holder 4 and the plunger 6 by 90 °. Due to the form or adhesion of the section 23 is also pivoted by 90 °. As a result, he assumes a position in which he is above the parts flap 9 of the punching machine 1 (see Fig. 1 ).
  • the section 23 or the components are discharged via the flap folded down part 9. Below the parts flap 9, a corresponding receptacle is provided.
  • the punching machine can also have a shaft.
  • the components can also be removed by a removal system from the punching machine, wherein the components are brought in a suitable orientation by the pivoting movement.
  • the tool upper part 7 is moved upward again.
  • the positive or positive connection dissolves and the section 23 or a component to be ejected tilts, due to the position of its center of gravity, down to the parts flap 9, and slides along the parts flap 9 in the container.
  • Metal sheets to be processed, from which further components are punched, are also positioned for the next processing operation.
  • a sorting device is arranged below the parts flap, which, controlled by the machine control device, sorts the parts into the corresponding containers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Forging (AREA)
  • Press Drives And Press Lines (AREA)
EP08019520A 2008-11-07 2008-11-07 Procédé destiné à évacuer des éléments en tôle de machines de poinçonnage Not-in-force EP2184116B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT08019520T ATE515335T1 (de) 2008-11-07 2008-11-07 Verfahren zum ausschleusen von blechteilen aus stanzmaschinen
PL08019520T PL2184116T3 (pl) 2008-11-07 2008-11-07 Sposób usuwania części z blach z wykrawarek
EP08019520A EP2184116B1 (fr) 2008-11-07 2008-11-07 Procédé destiné à évacuer des éléments en tôle de machines de poinçonnage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08019520A EP2184116B1 (fr) 2008-11-07 2008-11-07 Procédé destiné à évacuer des éléments en tôle de machines de poinçonnage

Publications (2)

Publication Number Publication Date
EP2184116A1 true EP2184116A1 (fr) 2010-05-12
EP2184116B1 EP2184116B1 (fr) 2011-07-06

Family

ID=40374222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08019520A Not-in-force EP2184116B1 (fr) 2008-11-07 2008-11-07 Procédé destiné à évacuer des éléments en tôle de machines de poinçonnage

Country Status (3)

Country Link
EP (1) EP2184116B1 (fr)
AT (1) ATE515335T1 (fr)
PL (1) PL2184116T3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
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
CN107876623A (zh) * 2017-11-28 2018-04-06 安徽机电职业技术学院 一种薄圆片单排冲孔装置
CN107983822A (zh) * 2018-01-07 2018-05-04 安徽合力股份有限公司 一种叉车水箱盖板的切边冲裁装置
CN113649491A (zh) * 2021-08-10 2021-11-16 鄂尔多斯市冠盛汽车部件有限公司 汽车车身内板件连续冲压设备
CN113878027A (zh) * 2021-09-23 2022-01-04 江西乔源科技有限公司 一种计算机机箱用板材冲孔装置
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
CN116967354A (zh) * 2023-09-22 2023-10-31 新乡天丰机械制造有限公司 一种板材加工用在线扩口机

Citations (5)

* Cited by examiner, † Cited by third party
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
US4602541A (en) * 1984-12-06 1986-07-29 Trumpf Gmbh & Co. Punch press with means for rotating the workpiece and method of using same and tooling therefor
US4690021A (en) * 1977-07-15 1987-09-01 Strippit/Di-Acro-Houdaille, Inc. Automatic load unload turret punch
JPH0452036A (ja) * 1990-06-15 1992-02-20 Oki Electric Ind Co Ltd 加工機における製品と廃材との仕分け装置
EP0845314A1 (fr) * 1996-11-29 1998-06-03 Murata Kikai Kabushiki Kaisha Presse de poinçonnage et méthode de remette en place la pièce à travailler sur la table d'une telle presse

Patent Citations (5)

* Cited by examiner, † Cited by third party
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
US4690021A (en) * 1977-07-15 1987-09-01 Strippit/Di-Acro-Houdaille, Inc. Automatic load unload turret punch
US4602541A (en) * 1984-12-06 1986-07-29 Trumpf Gmbh & Co. Punch press with means for rotating the workpiece and method of using same and tooling therefor
JPH0452036A (ja) * 1990-06-15 1992-02-20 Oki Electric Ind Co Ltd 加工機における製品と廃材との仕分け装置
EP0845314A1 (fr) * 1996-11-29 1998-06-03 Murata Kikai Kabushiki Kaisha Presse de poinçonnage et méthode de remette en place la pièce à travailler sur la table d'une telle presse

Cited By (11)

* Cited by examiner, † Cited by third party
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
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
US8887366B2 (en) 2010-08-31 2014-11-18 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Processing workpieces on machine tools
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
CN107876623A (zh) * 2017-11-28 2018-04-06 安徽机电职业技术学院 一种薄圆片单排冲孔装置
CN107876623B (zh) * 2017-11-28 2019-09-24 绍兴市米莉农业科技有限公司 一种薄圆片单排冲孔装置
CN107983822A (zh) * 2018-01-07 2018-05-04 安徽合力股份有限公司 一种叉车水箱盖板的切边冲裁装置
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
CN113649491A (zh) * 2021-08-10 2021-11-16 鄂尔多斯市冠盛汽车部件有限公司 汽车车身内板件连续冲压设备
CN113878027A (zh) * 2021-09-23 2022-01-04 江西乔源科技有限公司 一种计算机机箱用板材冲孔装置
CN116967354A (zh) * 2023-09-22 2023-10-31 新乡天丰机械制造有限公司 一种板材加工用在线扩口机

Also Published As

Publication number Publication date
EP2184116B1 (fr) 2011-07-06
PL2184116T3 (pl) 2011-12-30
ATE515335T1 (de) 2011-07-15

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