WO2018130945A1 - Presse de pliage améliorée - Google Patents

Presse de pliage améliorée Download PDF

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Publication number
WO2018130945A1
WO2018130945A1 PCT/IB2018/050144 IB2018050144W WO2018130945A1 WO 2018130945 A1 WO2018130945 A1 WO 2018130945A1 IB 2018050144 W IB2018050144 W IB 2018050144W WO 2018130945 A1 WO2018130945 A1 WO 2018130945A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
coordinate
bending press
pressing table
electronic device
Prior art date
Application number
PCT/IB2018/050144
Other languages
English (en)
Inventor
Andrea Argentin
Original Assignee
Andrea Argentin
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 Andrea Argentin filed Critical Andrea Argentin
Publication of WO2018130945A1 publication Critical patent/WO2018130945A1/fr

Links

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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/004—Bending sheet metal along straight lines, e.g. to form simple curves with program control
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209—Tools therefor
    • B21D5/0218—Length adjustment of the punch
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209—Tools therefor
    • B21D5/0227—Length adjustment of the die
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
    • B21D5/047—Length adjustment of the clamping means

Definitions

  • the invention relates to an improved bending press and the relevant operation method.
  • WO2016/063579 and EP1160024 taken here as an example of the technological field of interest, describe a bending press and related tool storage equipped with a tool displacement mechanism.
  • the electronic control of the press determines from time to time which tool to withdraw from the storage with a runner and where to place it on the pressing table.
  • the position of each tool relative to the supporting frame of the storage must be known in advance, and a positional database is used for this purpose.
  • the final positions of the tools on the pressing table must be pre-determined and programmed, and to this aim a second positional database is used.
  • Programming the second positional database is long and complex, because for each preparation of the press one must patiently associate to each tool its final position on the pressing table. This is done by inserting numerical coordinates into the database, e.g. how many millimeters with respect to a reference.
  • the main object of the invention is to propose a variant of press and operation method thereof to this state of the art.
  • Another object is to solve or mitigate the aforementioned problems related to programming the second database.
  • a method for controlling the positioning of a tool on a pressing table comprised in a bending press comprising the steps of:
  • Another aspect of the invention refers to a method for positioning a tool on a pressing table comprised in a bending press, comprising the steps of:
  • a bending press comprising means, e.g. an electronic circuit like in particular a microprocessor, for performing the steps of one or each method.
  • the bending press preferably comprises:
  • an electronic device for detecting an action performed in real time by a human operator an electronic circuit for, or a microprocessor programmed for, performing the steps of:
  • microprocessor of the press is programmed with software instructions to perform one or each of the steps defined here for one or each method.
  • microprocessor is permanently installed onboard the press, but it could also be part of an electronic board connected to the press only during the programming of the second database.
  • Another aspect of the invention relates to a program for microprocessor which, when executed by the microprocessor, causes the microprocessor to perform the steps of one or each method; or the steps indicated for the microprocessor comprised in the press.
  • the methods are executed or implemented by means of instructions of said microprocessor; however, the reference to a "microprocessor” includes also a discrete- component logic electronic circuit without a microprocessor (e.g. a ROM or a logic network).
  • a microprocessor includes also a discrete- component logic electronic circuit without a microprocessor (e.g. a ROM or a logic network).
  • a method envisages the visualization or generation of images or symbols, preferably such step is performed through a display, in particular controlled by the microprocessor for displaying and/or graphically updating the image or symbol defined in the method.
  • Said detected action can be a gesture (e.g. a movement of the arm, hand or head) and/or a word (via speech recognition).
  • a gesture e.g. a movement of the arm, hand or head
  • a word via speech recognition.
  • the human-press interaction is enormously simplified because the tool position is no longer established with numbers to be entered but with analog procedure. That is to say, that the methods create a correspondence between an action of the operator and the movement or position of the tool on the table, so for example the position of a hand, a finger or an arm becomes the model of the tool position (the position of the finger or arm relative to a spatial reference expresses and controls in an analog way the position of the tool).
  • a preferred variant of the methods, or another stand-alone method has the (further) steps of:
  • the methods can exploit, and/or the press can comprise, as electronic device, e.g.
  • a proximity sensor and/or a camera, and/or an infrared or ultrasound sensor to determine the position e.g. of a hand or an arm; and/or
  • a joystick and/or a rotary knob to translate into an electrical signal a gesture of a hand (and/or a direction command for the tool);
  • a touch screen to detect the position and/or movement of a finger
  • an image projector with the ability of detection of a hand, to detect the position and/or movement of a finger or hand on a projected image, e.g. on the table of the press;
  • a microphone or acoustic sensor to detect the voice of the operator from which to extract voice commands to move the tool.
  • the step of moving the tool relative to the table as a function of the signal may preferably take place in such a way as to let a displacement of the part of the body correspond to a proportional or symmetrical displacement in real time of the tool, in particular maintaining the same direction. So it becomes very intuitive to move the tool, without even the operator having to watch or pay attention to his/her own part that he/she is moving.
  • the method envisages to generate a spatial reference so that the operator can compare it with the displacement of said part, the spatial reference corresponding to one or more points of the tool's stroke on the table.
  • the operator can mentally guess and/or calculate how much to move his/her own part to move the tool into a desired position.
  • the method envisages to generate as spatial reference the end-of-travel limits and/or the total stroke of the tool relative to the table.
  • the method also envisages to generate a symbol indicating the actual position of the tool on the table, or a slider.
  • the slider is displayed close to or superimposed on said spatial references to improve the correspondence between the image and the movable mechanical parts on the press.
  • Said generation step takes place preferably by visualization, e.g. by reproducing or projecting on a screen or display, one or each of said spatial references.
  • the screen or display is preferably comprised in the electronic device or in the press.
  • the method envisages to generate or display a second slider near the first one, so that the operator can move the second slider through the displacement of said part.
  • the movement of the second slider is interpreted as a command for fine displacement of the tool, and corresponds to a tool movement on the table with a lower pitch or to a displacement relative to a neighborhood of its current position.
  • the electronic circuit, or the microprocessor has the function of
  • the method envisages to generate or display an image representing a neighborhood, or a magnification of the current tool position, and the first and/or second sliders are displaceable with respect to said image; preferably they are displaceable within said image.
  • the operator can easily guess and/or mentally calculate how much to move his/her own part to move the tool precisely in a desired position.
  • the method envisages to generate or display an image that represents a menu or a list of tools from which to select the tool to be moved.
  • a preferred variant of the methods, or a stand-alone method has the (further) steps of: detecting the position of a finger on a touch-screen (preferably associated to the press), calculating from the finger's position a coordinate for the tool related to the pressing table,
  • the methods envisage that said symbol moves following the action performed by the operator, so as to immediately give feedback on the tool position.
  • a preferred variant of the methods has the further step of:
  • the saving takes place in a memory, e.g. connected to the microprocessor, of the bending press, and even more preferably a plurality of coordinates calculated as above are saved to form a database of tool positions to be consulted during a phase in which a set of tools are set up on the table of the press.
  • the displaceable tools can be those of the lower or upper table, and consist of punches, dies or the so-called "intermediate" pieces;
  • the position of the finger or arm with respect to a spatial reference expresses and controls in analog manner - e.g. through a drive - the position of the tool;
  • the tool is displaceable on/along the table through a horizontal linear guide mounted on the table.
  • fig. 1 shows a bending press and a block diagram of the electronic control.
  • the system is used to control a bending press 10, which ordinarily has a lower table or beam 16 on which a vertically-movable table or upper beam 12 presses.
  • a bending press 10 which ordinarily has a lower table or beam 16 on which a vertically-movable table or upper beam 12 presses.
  • 16 tools U are mounted which get changed during processing and can be taken from a tool storage (not shown).
  • the tools (punches) U of the table 12 abut against dies (not shown) mounted on the table 16 to bend a piece.
  • a horizontal guide 14 is provided on which a well-known motorized organ or carriage 30 can slide linearly, which serves for gripping and displacement of the tools U.
  • the carriage 30 of the example in the figure changes the tools U by taking them from the storage and setting them in position on the table 12, or the other way around.
  • a programmable electronic control unit 20 (or similar electronic circuit, e.g. a PLC or a microprocessor) controls the position and functions of the organ/carriage 30.
  • the control unit 20 is connected to a(n) (internal or external) data memory 40 and to a user interface, e.g. a touch-screen 70, from which it can receive control electrical signals and to which it sends data to generate images visible to the operator.
  • a(n) (internal or external) data memory 40 and to a user interface, e.g. a touch-screen 70, from which it can receive control electrical signals and to which it sends data to generate images visible to the operator.
  • the control unit 20 drives the touch-screen 70 to display a first positional control window 60, and a second (optional) tool selection window 50.
  • the second window 50 includes a list or menu 52 of codes 54 corresponding to tools that can be taken from the storage.
  • the user with a finger F selects a code 54, the control unit 20 detects it and controls the carriage 30 in order to move it to take from the storage the tool associated with the code.
  • the first window 60 intended for positioning a tool U on the table 12, comprises a, e.g. linear, reference 62, a slider 64 movable with respect to the reference 62 and preferably some buttons 66.
  • the reference 62 is e.g. a line or strip to evoke the guide 14, and optionally comprises signs to indicate the end-of-travel limits of the carriage 30 on the guide 14.
  • the cursor 64 indicates the current tool position on the guide 14.
  • control unit 20 By moving the cursor 64 along the reference 62 with the finger F, the user controls the position of the carriage 30 (and therefore of the tool) along the guide 14. For this purpose, the control unit 20
  • the operator presses a button 66 to save its position.
  • the control unit 20 detected this action of the operator on the touch-screen 70, stores in the memory 40 a numeric data representing the linear coordinate of the carriage 30 with respect to the guide 14. By repeating the operation for many tools said second positional database forms in the memory 40.
  • control unit 20 can e.g. generate on the display of touch screen 70 a second reference such as the 62 to which is associated a second slider such as the 64.
  • This second group of images can be used for fine positioning of the tool, representing a segment corresponding to a neighborhood of the tool (i.e. the fraction of the guide 14 that is a bit before and a bit beyond the current tool position).

Abstract

La présente invention concerne un procédé de commande du positionnement d'un outil (U) sur une table de presse (12) comprise dans une presse de pliage (10), comprenant les étapes consistant à : détecter, au moyen d'un dispositif électronique (60), une action effectuée en temps réel par un opérateur humain (F), traiter (20) un signal électrique, généré par le dispositif électronique en raison de ladite action, pour calculer une coordonnée de l'outil par rapport à la table de presse, déplacer l'outil en direction d'une telle coordonnée ou exactement à l'endroit d'une telle coordonnée. Le procédé résout le problème de la complexité considérable de l'insertion manuelle de données de position d'outil.
PCT/IB2018/050144 2017-01-13 2018-01-10 Presse de pliage améliorée WO2018130945A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102017000003232A IT201700003232A1 (it) 2017-01-13 2017-01-13 “migliorata pressa piegatrice”
IT102017000003232 2017-01-13

Publications (1)

Publication Number Publication Date
WO2018130945A1 true WO2018130945A1 (fr) 2018-07-19

Family

ID=58737724

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2018/050144 WO2018130945A1 (fr) 2017-01-13 2018-01-10 Presse de pliage améliorée

Country Status (2)

Country Link
IT (1) IT201700003232A1 (fr)
WO (1) WO2018130945A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100024263A1 (it) * 2021-09-21 2023-03-21 Argesystems Srl Migliorata pressa piegatrice

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11314117A (ja) * 1998-04-30 1999-11-16 Amada Co Ltd プレスブレーキ
EP1160024A1 (fr) * 1999-01-13 2001-12-05 Amada Company, Limited Systeme de presse a cintrer
JP2002178036A (ja) * 2000-12-07 2002-06-25 Amada Co Ltd 曲げ加工機における金型レイアウト作成方法およびこの入力方法を適用する曲げ加工機
JP2005177824A (ja) * 2003-12-22 2005-07-07 Amada Co Ltd 金型段取計画作成システムをおよびプレスブレーキ
JP2013212517A (ja) * 2012-04-02 2013-10-17 Amada Co Ltd 加工機および加工機における曲げ加工動作入力設定方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11314117A (ja) * 1998-04-30 1999-11-16 Amada Co Ltd プレスブレーキ
EP1160024A1 (fr) * 1999-01-13 2001-12-05 Amada Company, Limited Systeme de presse a cintrer
JP2002178036A (ja) * 2000-12-07 2002-06-25 Amada Co Ltd 曲げ加工機における金型レイアウト作成方法およびこの入力方法を適用する曲げ加工機
JP2005177824A (ja) * 2003-12-22 2005-07-07 Amada Co Ltd 金型段取計画作成システムをおよびプレスブレーキ
JP2013212517A (ja) * 2012-04-02 2013-10-17 Amada Co Ltd 加工機および加工機における曲げ加工動作入力設定方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100024263A1 (it) * 2021-09-21 2023-03-21 Argesystems Srl Migliorata pressa piegatrice
WO2023047261A1 (fr) * 2021-09-21 2023-03-30 Argesystems Srl Presse à cintrer améliorée

Also Published As

Publication number Publication date
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