EP3302839B1 - Procédé de cintrage - Google Patents

Procédé de cintrage Download PDF

Info

Publication number
EP3302839B1
EP3302839B1 EP16735974.4A EP16735974A EP3302839B1 EP 3302839 B1 EP3302839 B1 EP 3302839B1 EP 16735974 A EP16735974 A EP 16735974A EP 3302839 B1 EP3302839 B1 EP 3302839B1
Authority
EP
European Patent Office
Prior art keywords
bending
movement
tool
sensor
bending tool
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
EP16735974.4A
Other languages
German (de)
English (en)
Other versions
EP3302839A1 (fr
Inventor
Gerhard Angerer
Klemens Freudenthaler
Florian Hausmann
Matthias HÖRL
Nenad KOVJENIC
Florian Maier
Verena STEININGER
Helmut Theis
Manfred WALDHERR
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 Maschinen Austria GmbH and Co KG
Original Assignee
Trumpf Maschinen Austria GmbH 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 Maschinen Austria GmbH and Co KG filed Critical Trumpf Maschinen Austria GmbH and Co KG
Publication of EP3302839A1 publication Critical patent/EP3302839A1/fr
Application granted granted Critical
Publication of EP3302839B1 publication Critical patent/EP3302839B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • 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
    • B21D5/006—Bending sheet metal along straight lines, e.g. to form simple curves combined with measuring of bends
    • 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
    • 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/12—Bending rods, profiles, or tubes with programme 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/14—Bending rods, profiles, or tubes combined with measuring of bends or lengths

Definitions

  • the invention relates to a method for the controlled pivoting bending of workpieces for the production of molded parts according to the wording of claim 1.
  • Bending is a mechanical forming method, which is particularly suitable for processing sheet metal.
  • a Schwenkbiegean at least a portion of a workpiece to be deformed, for example, the flat sheet or a sheet semi-finished, held by a hold-down tool in position, while a bending leg of the workpiece by at least one adjustable bending means or at least one adjustable bending tool by bending relative to the detained Part is angled.
  • the hold-down tool may for example be made in two parts, and consist of a fixed and a vertically adjustable tool between which at least a portion of the workpiece can be clamped.
  • the at least one bending tool can be force applied into an adjusting movement, and thus acts on a contact surface of the bending leg of the workpiece, whereby the workpiece is formed.
  • swing bending is understood to mean a method for forming workpieces, in which the bending tool itself does not carry out any intended pivoting movements about a stationary axis of rotation, such as, for example, B. from the DE 10 2008038932 is known.
  • the term 'pivoting bending' is understood to mean in particular a process in which the at least one bending tool performs a substantially elliptical adjustment movement or trajectory or so acts on a bending leg of the workpiece to be deformed, wherein substantially a linear contact and no surface contact between Bending tool and bending leg takes place.
  • the at least one bending tool is arranged in an adjustable tool carrier, which has at least two degrees of freedom.
  • the orientation of the at least one bending tool, apart from undesirable, deformation-related tilting or the like, is constant during an adjustment movement.
  • the bending geometry in particular the bending angle and the leg length, can at This type of pivoting bending are basically influenced or determined by corresponding path movements or adjusting movements of the at least one bending tool.
  • CNC-controlled machines In industrial practice often electronically controlled folding machines, in particular CNC-controlled machines are used.
  • a control device based on various input parameters, for example, the workpiece, the molding or the bending tool (s) used, based on mathematical model calculations of the bending deformation train coordinates and trajectories or trajectories for the bending tool or (e) calculate in order to achieve the bending geometry, for example the desired bending angle or the desired bending length.
  • Such controlled methods are usually combined under the term 'path control'.
  • path coordinates and / or path motion data for the adjustment movement to be executed and composed of individual movement sections are interpolated or generated on the basis of predetermined bending geometries or desired position coordinates prior to the bending operation, and the calculated path coordinates and path motion data are transmitted to at least one adjustment drive of the bending tool or a tool carrier, in which one or more bending tool (s) are arranged, transmitted.
  • the bending tool or the tool carrier by a suitable guide arrangement has the required mobility.
  • the calculated adjustment movements can be carried out usually with different, predetermined feed rates.
  • the movement path or path trajectory of the at least one bending tool resulting from the sequence of movement sections can have a general course, for example, depending on the type of machine used or depending on the requirements for the respective bending deformation. In principle, both simple circular paths or linear feed movements are possible, as well as a complex course of the web or feed movements of the bending tool or tools (e).
  • the object of the invention is to provide a method for pivoting bending, wherein impairments of the surface in the contact region between the bending tool and the bending leg is minimized as far as possible.
  • the object of the invention is achieved by providing a method for producing molded parts by controlled bending of a workpiece by a swivel bending arrangement with at least one bending tool acting on a contact surface of a bending element of the workpiece.
  • the method comprises the generation of path coordinates and / or path movement data for the adjustment movement of the at least one bending tool by means of a control device, wherein the adjustment movement is composed of a sequence of movement sections.
  • the generated path coordinates and / or path motion data are then transmitted to at least one adjusting drive for the at least one bending tool or the tool carrier. This is a basic function of programmable variable speed drives for swing bending machines.
  • the swiveling bending arrangement comprises at least one sensor device connected to an evaluation logic.
  • This at least one sensor device is designed for the direct or mathematically indirect detection of a relative movement between the bending leg and the at least one bending tool.
  • the relative movement in this case comprises a change in the angular orientation between the bending leg and the at least one bending tool or a sliding movement of the at least one bending tool along the contact surface of the bending leg.
  • relative movement data are determined in a respective upstream movement section, which data are transmitted to the control device.
  • the path coordinates and / or path motion data are generated for a downstream motion section.
  • the path coordinates and / or path movement data for a downstream movement section are generated in such a way that correction values or factors are calculated on the basis of the relative movement data determined in an upstream movement section and used for the generation of the path coordinates or movement data in a downstream movement section.
  • the path coordinates or path movement data are generated in such a way that sliding movements of the at least one bending tool along the contact surface of the bending element during the entire bending process are minimized as far as possible.
  • the successive movement sections of a preprogrammed adjustment movement or movement path are already changed or corrected taking into account the relative movements between the bending tool and the contact surface or bending leg determined during the bending process during the bending process.
  • the method in particular also a low-pressure pivoting bending regardless of, for example, thickness and type of material to be bent workpiece.
  • An upstream movement section is understood to mean in each case a movement section in which a relative movement between the bending leg and the at least one bending tool is determined by means of the at least one sensor device connected to the evaluation logic.
  • a subordinate movement section is understood to mean in each case a movement section in which the path coordinates and / or path movement data are executed using the determined relative movement data. Consequently, for the person skilled in the art, in the course of executing the method or a bending operation, the individual movement sections except the first and last movement section are to be considered both upstream and downstream movement sections, an assignment of a movement section as an upstream or downstream movement section Consequently logically results from the chronological sequence of the bending process.
  • the at least one sensor device is designed to determine the change in the angular orientation between the bending leg and the at least one bending tool, and the path coordinates and / or path movement data for a downstream movement section are generated in such a way that an adjustment movement or web movement of the at least one bending tool in a downstream movement section substantially perpendicular to the contact surface.
  • the path movements in a downstream movement section can be linear or curved, for example, or the path movements or adjustment movements can also have a complex course. It is advantageous in this case that sliding movements of the bending tool on the bending leg can at least largely be prevented, and it is predominantly merely a rolling of the bending tool on the bending leg.
  • the required bending force can be minimized as possible by this approach, since the bending force is applied at least largely normal or perpendicular to the bending leg. Losses in the applied bending force due to undesirable sliding movements along the contact surface of the bending gift can be reduced.
  • the sensor device designed to determine the change in the angular orientation, and with the knowledge that the travel movement is as normal as possible on the bending leg, can also be closed to the current bending angle.
  • the at least one sensor device is formed by an optical reflection measuring device, which comprises at least one illumination device, an optical detection means with a light detection surface and a rotationally symmetrical reflection body with a reflective surface.
  • an optical reflection measuring device which comprises at least one illumination device, an optical detection means with a light detection surface and a rotationally symmetrical reflection body with a reflective surface.
  • a center axis of the rotationally symmetrical reflection body is aligned parallel to a working edge of the at least one bending tool, and a first light beam emitted by the illumination device is reflected by the bending leg and passed as a second light beam to the rotationally symmetric reflection body and the second light beam is reflected at the rotationally symmetric reflection body and as a third light beam directed to the optical detection means, in particular on the light detection surface, wherein a change in the angular orientation is determined by determining the position of light intensity maxima on the light detection surface by an evaluation logic.
  • a change in angular orientation between bending leg and the at least one bending tool can be carried out very accurately and safely, since a sensor device formed in this way has no moving parts. Therefore, a change in the angular orientation can be performed as error-free.
  • a sensor device designed in this way a non-contact detection of a change in the angular orientation is also made possible, so that dirt and / or signs of wear can be avoided.
  • the optical reflection measuring device can in this case be arranged on the tool carrier, and be carried along with the tool carrier during the adjustment movement.
  • the optical reflection measuring device may also be expedient for the optical reflection measuring device to be fastened in a front end of at least one bending tool facing the contact surface, and to be carried along with the at least one bending tool during the adjusting movement. In this way, a change in the angular orientation can be carried out by means of a space-saving arrangement of the optical reflection measuring device in a bending tool. In particular, a separately arranged sensor device is unnecessary.
  • the optical reflection measuring device may also be expedient for the optical reflection measuring device to be fastened in a front end, facing the contact surface, of a sensor tool arranged separately in the tool carrier, and to be carried along with the sensor tool during the adjustment movement.
  • the sensor tool can be arranged as required or spaced apart from the bending leg.
  • the optical reflection measuring device can be tracked without contact to the bending leg. As a result, measurement errors during the determination of a change in the angular orientation can be minimized since no deformation of the sensor tool occurs during a bending operation.
  • the at least one bending tool or the sensor tool another sensor device is positively and or non-positively connected, by means of which simultaneously with the determination of the change in the angular orientation of a deformation-induced change of a position angle of the at least one bending tool or the sensor tool in With respect to the Lot is determined, the determined attitude angle data are transmitted to the control device, and the path coordinates and / or path motion data for a downstream movement section are generated using this determined attitude angle data.
  • measurement inaccuracies in particular inaccuracies caused by deformations of the bending tool or tools, can be compensated, and thus a further improvement in the precision of the method can be achieved again.
  • the respective current bending angle or deformation angle can be determined with high accuracy in this way.
  • the further sensor device is formed by an inclination sensor, by means of which a deformation-related change in the positional angle of the at least one bending tool or the sensor tool relative to the solder is determined.
  • tilt sensors allow due to their microelectronic structure despite small dimensions, for example, of a few millimeters good angle measurement resolutions.
  • space-saving installation possibility in a bending tool this makes it possible to determine sufficiently precise correction data for the generation of the path coordinates or adjusting movements of the at least one bending tool in a downstream movement section.
  • the further sensor device is formed by a gyroscope, by means of which a deformation-related change in the positional angle of the at least one bending tool or the sensor tool is determined.
  • a gyroscope deformation-related changes in position angle between bending leg and the at least one bending tool can be determined with high accuracy in particular.
  • the path coordinates and / or path movement data generated for a downstream movement section may be corrected using the determined change in the positional angle become.
  • This enables a generation or correction of the path coordinates or path motion data for a downstream movement section with improved precision or accuracy.
  • deformation-related tilting of the bending tool can be determined, and the path coordinate or path data for a downstream movement section can be corrected or compensated in consideration of this detected tilt error.
  • the current bending angle is determined or transmitted to the control device by means of the at least one sensor device and the further sensor device.
  • the measurement of the current bending angle can be measured at certain times or even continuously, wherein the thus determined, current bending angle can be used in different ways depending on the measurement procedure.
  • the measurement of the current bending angle or deformation angle is helpful in order to achieve the target value for the bending angle as precisely as possible.
  • a probe element such as a Tastusion with a flat side
  • the flat side abuts during an adjustment of the contact surface of the bending gift
  • at least a sensor device is associated with the probe element.
  • tactile or the bending leg-contacting variants for determining the change in the angular orientation allows, or other, in particular relatively inexpensive and cost sensor devices can be used to determine a change in the angular orientation.
  • sensor devices can be arranged in the probe element, in which a detection of a change in the angular orientation by transmitting the bending angle of the probe element to the sensor device is possible.
  • the at least one sensor device is formed by a rotary encoder, wherein changes in the angular orientation between the bending leg and the at least one bending tool are transmitted during an adjustment by the probe element to the rotary encoder.
  • a rotary encoder By using a rotary encoder a particularly cost-effective, but nevertheless sufficiently accurate process control is possible.
  • the at least one sensor device may be formed by a tilt sensor connected to the feeler element, wherein changes in the angular orientation between the bending limb and the at least one bending tool are transmitted to the tilt sensor during an adjustment movement by the feeler element.
  • tilt sensors allow angle measurement resolutions of up to 0.001 °, and thus enable a high-precision process control, since changes in the angular orientation between the bending leg and the at least one bending tool can be determined with high accuracy.
  • the change in angle between the bending leg and the bending tool is determined by the change in angle between the bending leg and the vertical direction contained in the inclination sensor, whereby any deformations and angular changes of the bending tool caused by the bending force can be disregarded.
  • the at least one sensor device for determining the sliding movement of the at least one bending tool along the contact surface of the bending leg is formed, and the path coordinates and / or path motion data for a downstream movement section are generated such that the downstream movement section is superimposed with a direction opposite to a determined in an upstream movement section sliding movement compensating movement. Also in this way a relative movement between the bending leg and the at least one bending tool can be determined in an upstream movement section, and the path coordinates and / or path movement data for a downstream movement section can be generated using the determined relative movement data.
  • the adjustment movement for a downstream movement section is generated in such a way using a determined sliding movement in a specific direction along the contact surface, or the path movement data or path coordinates of the at least one bending tool are modified such that the adjustment movement for the Subordinated movement section with a compensating movement, which leads in the opposite direction to the determined in the upstream movement section sliding movement is superimposed.
  • the path coordinates or path movement data for a downstream movement section can also be generated such that an adjustment movement is carried out as normally as possible or perpendicular to the contact surface of the bending element.
  • a probe element such as a Tastusion is rotatably or pivotally mounted with a flat side, wherein the flat side abuts the adjustment surface of the bending surface during the adjustment, and the at least one sensor device the Tastelement is assigned.
  • the at least one sensor device is formed by an optical motion sensor comprising a lighting device and an image capture device, and during an adjustment by the optical motion sensor determined sliding movements of the at least one bending tool along the contact surface, and transmitted via the evaluation logic to the control device become.
  • the lighting device is designed as an LED or laser.
  • the image capture device can be designed as a 2D image sensor.
  • optical imaging systems are known, for example, from computer engineering, where they are used in optical 'mice', for example.
  • An advantage of such a sensor for detecting sliding movements is due to the fact that very compact and cost-effective sensor modules are available due to the widespread use. These modules illuminate a surface section and capture images of the illuminated section in rapid succession. These images can be fed by an evaluation logic of further processing or processing.
  • the relative movement data and / or the generated path coordinates and / or path movement data which are sensory in the course of a swivel bending process, to be stored in one or more data storage devices connected to the control device for use in subsequent, identically executed bending processes.
  • information about the bending processes that have been carried out can be obtained. For example, error influences, such as irregularities in the material of the workpiece, but also process errors such as asymmetrical workpiece feed, frictional influences, etc. can be detected, at least estimated. This knowledge can subsequently be used to improve future swing bending processes.
  • the respective first bending process of a series of bending processes to be carried out identically is carried out with a lower adjustment speed for the at least one bending tool.
  • the sampling rate or the number of measurements for determining relative movements between bending leg and the at least one bending tool per unit time or per degree bending angle can be increased.
  • an improvement in the accuracy for the generation of path coordinates or path motion data for the respective downstream movement sections can be achieved, which improvement can advantageously be used for the following identical bending formations.
  • the following bending processes which are to be carried out in the same way, can be carried out with a higher adjustment speed, whereby the sensory measurements for determining relative movements in the subsequent pivoting bending processes deviate for correcting Influencing factors, such as different material thicknesses of the workpieces and the like can be used.
  • Fig. 1 is a detail of a swivel bending assembly 1 shown for forming or swivel bending of workpieces.
  • Such pivoting bending arrangements are basically devices for the production of molded parts by forming workpieces.
  • Fig. 1 only those components of such a pivoting bending arrangement are shown, which are relevant to the illustration or explanation of the method according to the invention.
  • Schwenkbiegean angelen may have numerous, other components, such as stops, positioning tools, monitoring devices, etc.
  • a swivel bending arrangement 1 for carrying out the method according to the invention has, as in FIG Fig. 1 illustrated, a hold-down device 2, by means of which a workpiece 3 to be formed or bent is held.
  • the hold-down device 2 according to the embodiment in Fig. 1 consists of a lower hold-down tool 4 and an upper hold-down tool 5, between which the workpiece 3 to be machined, for example, a sheet is clamped.
  • at least one of the hold-down tools 4, 5 is made adjustable in order to position and clamp the workpiece 3 to be bent.
  • the in Fig. 1 illustrated pivoting bending arrangement 1 a tool carrier 6 with at least two degrees of freedom.
  • the tool carrier 6 at least one bending tool 7 is arranged, wherein in the Fig. 1 two bending tools 7 are shown by way of example.
  • a deformation of the workpiece 3 can be achieved during the pivoting bending by means of the swiveling bending arrangement 1 in that the bending tools 7 are moved by an adjusting drive for the tool carrier 6 in the direction of a bending tooth 8 of the workpiece.
  • a bending tool 7 acts on a contact surface 9 of the bending mandrel 8, and the swiveling bending process can be carried out.
  • the adjusting drive (not shown) can be designed in various ways according to the prior art. It is essential that the adjustment for the at least a bending tool 7 and the tool carrier 6 in conjunction with a suitable guide arrangement allows adjustment movements with at least two degrees of freedom.
  • adjusting movements for the at least one bending tool 7 or the tool carrier 6 are carried out automatically by means of a control device 10.
  • a control device 10 For example, so-called CNC controllers are used.
  • the control device 10 generates path coordinates and / or path movement data for an adjustment movement of the at least one bending tool 7, wherein the entire adjustment movement for a pivot bending process can be composed of a sequence of movement sections.
  • the adjustment movement is carried out in that the path coordinates or path movement data generated by the control device 10 are transmitted to at least one adjusting drive for the at least one bending tool 7.
  • a swivel bending operation is performed sensor-assisted to adjust during a bending operation by means of detected relative movements between bending leg 8 and the at least one bending tool 7, adjusting movements for the at least one bending tool 7 in subsequent movement sections, and unwanted sliding movements along the bending gift 8 minimize as possible.
  • the Schwenkbiegean extract 1 comprises for this purpose at least one connected to an evaluation logic sensor device 11, which for direct or indirect determination of a relative movement between the bending leg 8 and the at least a bending tool 7 is formed.
  • the evaluation logic can be arranged in the sensor device 11 or structurally separate from the sensor device 11.
  • the evaluation logic may also be part of the control device 10.
  • Fig. 1 illustrated at least one sensor device 11 to be regarded as exemplary of suitable for the detection or determination of relative movements sensor devices, and is therefore the sensor device 11 in the Fig. 1 greatly simplified, shown only schematically and stylized. Examples of suitable sensor devices 11 are described in more detail below and explained with reference to the further figures. It should also be noted that also in the Fig. 1 illustrated arrangement of the at least one sensor device 11 in a separately arranged in the tool carrier 6 sensor tool 12 is merely to be regarded as an example of a possible arrangement of at least one sensor device 11. Examples of further, possible arrangements of the at least one sensor device 11 are also described in more detail below, depending on the type of the respective sensor device, and with reference to the further figures.
  • a relative movement between the bending leg 8 and the at least one bending tool 7 that can be detected or determined by means of specific sensor devices 11 is a change in the angular orientation between the bending leg 8 and the at least one bending tool 7.
  • Another detectable relative movement is a sliding movement of the at least one bending tool 7 along the Contact surface 9 of the bending gift 8.
  • FIG. 2 is an embodiment of the process of the method greatly simplified and shown schematically stylized.
  • the same reference numerals or component designations as in the preceding Fig. 1 used.
  • the detailed description in the previous ones will be used Fig. 1 referred or referred.
  • the simplified and schematic schematic diagram of the procedure in Fig. 2 shows a swivel bending process, which is divided into individual movement sections.
  • the path coordinates or path movement data are generated by the control device 10 for a downstream movement section such that the adjustment of the at least one bending tool 7 in a downstream movement section substantially perpendicular or normal to the contact surface 9, as this by arrow 14 in Fig. 2 is indicated schematically and stylized.
  • the generated path coordinates and / or path movement data are transmitted in a respective downstream movement section for carrying out the respective adjustment movement to at least one adjustment drive of the tool carrier, as in US Pat Fig. 2 is indicated stylized by the dot-dashed arrow 15.
  • the adjusting drive itself is in Fig. 2 and the other figures not shown for clarity.
  • Arrow 14 for merely stylized and greatly simplified illustration of an adjustment in the normal direction or vertical direction is shown on the bending leg 8.
  • the adjustment movements or path trajectories of the at least one bending tool 7 can basically have a general course in the individual movement sections. In principle, both simple circular paths or linear feed movements are possible, as well as a complex course of the web or feed movements of the or the bending tool (s) 7. In general, however, that the adjustment movements in a downstream movement section regardless of the shape of the executed trajectory as perpendicular or in the normal direction to the contact surface 9 of the bending gift 8 are executed.
  • the accuracy of the method depends on the number of movement sections into which an adjustment movement for the at least one bending tool is subdivided. In other words, the accuracy of the method can be increased by increasing the number of individual movement sections from which an entire adjustment movement of the at least one bending tool is assembled during a bending operation.
  • each stylized and greatly simplified illustrated sensor device 11 may be formed for example by an optical reflection measuring device 16, wherein an embodiment of such a reflection measuring device 16 in the Fig. 3 is shown.
  • the same reference numerals or component names for the same parts as in the preceding Fig. 1 and 2 be used.
  • Fig. 3 are for better clarity, a bending leg 8 and a bending tool 7 only partially shown.
  • the optical reflection measuring device 16 in one of the contact surface 9 facing the front end of at least one bending tool 7 attached, and is carried along with the at least one bending tool 7 during the adjustment movement.
  • the optical reflection measuring device 16 is mounted in a contact surface 9 facing the front end of a separately arranged in the tool carrier 6, spaced from the bending leg 8 sensor tool 12, and is carried along with the sensor tool 12 during the adjustment. as this is greatly simplified and stylized in the Fig. 1 is shown.
  • the sensor tool also to be arranged so as not to be spaced apart from the bending leg 8, so that the sensor tool also acts on the bending leg 8 during a bending operation.
  • the optical reflection measuring device 16 comprises a lighting device 17 which has at least one light source.
  • the lighting device 17 may be formed, for example, in the form of a point light source such as an LED.
  • possible embodiments of illumination devices with different light sources can be selected by the person skilled in the art basically taking into account requirements, such as the surface condition and material of the workpiece to be bent according to the prior art.
  • the optical reflection measuring device comprises an optical detection means 18, which has a light detection surface 19.
  • the light-sensing surface 19 is preferably formed by a two-dimensional image sensor, such as a CCD sensor (charge-coupled device).
  • optical reflection measuring device 16 a rotationally symmetrical reflection body 20 having a reflective surface.
  • the roughness of the surface of the rotationally symmetrical reflection body 20 in this case is selected or designed so that it relative to the wavelength of the light generated by the illumination device 17 comparatively small roughness features, that is as smooth as possible, causing it to a directed reflection of the on the Surface of the rotationally symmetric reflection body 20 incident light beam comes and thus the law of reflection is applied.
  • the angle of incidence of a light beam incident on the surface of the rotationally symmetrical reflection body 20 is the same as the angle of reflection of a light beam reflected on the surface.
  • Such a rotationally symmetrical reflection body 20 with a reflecting surface can for example be made of a metallic material such as stainless steel.
  • the rotationally symmetrical reflection body 20 has a central axis 21, which can also be referred to as the axis of symmetry and about which the surface of the reflection body 20 is arranged rotationally symmetrical.
  • a central axis 21 of the rotationally symmetrical reflection body 20 is parallel to the bending leg 8. This is achieved in that the center axis 21 of the rotationally symmetrical reflection body 20 is parallel to a working edge 22 of the at least one bending tool 7.
  • the working edge 22 is that portion of a bending tool 7, which has contact with the bending leg 8 during a swivel bending operation and thus allows the predominant part of at least one adjustment for the tool carrier on the bending tool or (e) force applied to the bending leg 8 act , and thereby performs the bending deformation.
  • the rotationally symmetrical reflection body 20 is formed in the form of a sphere. This has the advantage that any arbitrary lying or selected axis, which runs through the center of the sphere, the central axis 21 can represent. Thus, a correct positioning of the rotationally symmetrical reflection body 20, which is formed in the shape of a sphere, is facilitated. Alternatively, it is also possible that a variety of other body shapes, such as cones are designed as rotationally symmetrical reflection body 20.
  • Fig. 3 how out Fig. 3 can be provided, it can be provided that the lighting device 17 is arranged concentrically around the central axis 21 lying. Furthermore, it can be provided that the optical detection means 18 is also arranged concentrically lying around the central axis 21, wherein the light-detecting surface 19 is arranged normally standing on the central axis.
  • a first light beam 23 is emitted.
  • the first light beam 23 is directed to the surface of the rotationally symmetrical reflection body 20 and is reflected at this.
  • the first light rays 23 emanating from the illumination device 17 are reflected by the surface of the rotationally symmetrical reflection body 20 in all spatial directions in accordance with the law of reflection, whereby, as already explained, only that ray path of the light ray 23 is represented, weleher for determining a change in the angular orientation between the bending leg 8 and the at least one bending tool 7 is relevant.
  • the relevant and illustrated beam path of the first light beam 23, which is delivered to the surface of the bending gift 8, is reflected by the reflection law of the surface and irradiated as a second light beam 24 to the rotationally symmetrical reflection body 20.
  • the second light beam 24 is then again reflected by the surface of the rotationally symmetrical reflection body 20 and irradiated as a third light beam 25 on the light detection surface 19.
  • a diameter of the light-detecting surface 19, at which the relevant light rays 25 can be incident, may in this case be the same size as a diameter of the rotationally symmetrical reflection body 20.
  • a center 26 of the light-detecting surface 19 is located on the central axis 21 and the light-detecting surface 19 is arranged normal to the central axis 21. It can thereby be achieved that the light beams incident on the light-detecting surface 19 are displayed without distortion.
  • Fig. 3 illustrates that beam path, which is reflected perpendicularly from the contact surface 9 of the bending gift 8, and that beam path, which at the light detection surface 19, the current angular orientation between the bending leg 8 and the at least represents or indicates a bending tool 7, since it generates an intensity maximum of the light intensity at the light detection surface.
  • optical reflection measuring device 16 is only one embodiment of such a measuring device.
  • deviating geometric arrangements of the individual components of the reflection measuring device may also be suitable.
  • further optical components such as mirrors, beam splitters, or optical waveguides and the like, in particular for influencing the beam path applicable. Therefore, other design variants than those are exemplary in the Fig. 3 illustrated quite conceivable.
  • a possible installation variant of an optical reflection measuring device 16 in a bending tool 7 is shown schematically. It can be provided, for example, that a parallel to the working edge 22 extending bore 27 is introduced in the bending tool 7, in which the lighting device 17 and the rotationally symmetrical reflection body 20 and the detection means 18 are introduced.
  • the bending tool 7 simultaneously serves as a housing 28, so that the optical reflection measuring device 16 is protected against undesirable incidence of light or against other environmental influences.
  • a recess 29 may be provided, in which the rotationally symmetrical reflection body 20 is received.
  • the housing is formed by a simple tubular body on a separately arranged on the tool carrier 6 sensor tool 12, so that the optical reflection measuring device 16 independent of the at least one bending tool 7 on the Schwenkbiegean Aunt 1 can be positioned as this is greatly simplified and stylized in Fig. 1 is shown.
  • FIG. 4 is shown a further and possibly independent embodiment of the method for controlled pivoting bending, again for like parts, the same reference numerals or component designations as in the preceding Fig. 1-3 be used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used Fig. 1-3 referred or referred.
  • FIG. 4 Like in the Fig. 4 is shown greatly simplified, it may be due to the adjusting movement for the at least one bending tool 7 due to the deformation or bending of the bending mandrel 8 to deform.
  • a deformation can, for example, cause a tilt or a change in the position angle 43 of the bending tool or tools 7 with respect to the solder, as also in FIG Fig. 4 is shown as an example. If the at least one sensor device 11 is now arranged in a bending tool 7, measurement errors in the detection of changes in the angular orientation between the bending leg 8 and the at least one bending tool 7 can therefore occur, as in FIG Fig. 4 is illustrated.
  • a further sensor device 30 is positively and / or non-positively connected to the at least one bending tool 7.
  • this further sensor device 30 in addition to detecting a change in the angular orientation between the bending leg 8 and the at least one bending tool 7 (dash-dotted arrow 13), a deformation-induced change in the position angle 43 of the at least one bending tool 7 or a sensor tool in relation to the solder be determined.
  • the determined attitude angle data can be transmitted to the control device 10, as indicated by the dot-dashed arrow 31 in FIG Fig. 4 is indicated.
  • the path coordinates and / or path motion data for a downstream movement section can be generated with the additional use of this determined position angle data, and transmitted to at least one adjusting drive for the at least one bending tool 7 (dot-dashed arrow 15).
  • the accuracy of the method can be increased because deformation-induced inaccuracies in the determination of a change in the angular orientation between the bending leg 8 and the at least one bending tool 7 can be compensated.
  • the path coordinates or path movement data can, in turn, in particular be generated in such a way that the adjustment movement or adjustment movements of the at least one bending tool 7 respectively run or run at least substantially at right angles to the contact surface 9 of the bending element 8.
  • further sensor device 30 may be formed for example by a tilt sensor 32.
  • the further sensor device 30 may also be formed, for example, by a gyroscope or another inertial sensor. With both sensor types, a deformation-related change of the position angle 43 of the at least one bending tool 7 or of the sensor tool in relation to the solder can be determined.
  • the path coordinates and / or path movement data generated for a downstream movement section can be corrected or adapted for the adjustment movement of the at least one bending tool 7.
  • the track coordinates or path data for a respective downstream movement section using the determined in an upstream movement section change the angular orientation between bending leg 8 and bending tool 7, as well as determined in an upstream movement section change the attitude angle 43 of the bending tool 7 for Lot, to be generated.
  • Fig. 5 an alternative embodiment for sensor devices 11 for determining a change in the angular orientation between the bending leg 8 and the at least one bending tool 7 is shown.
  • the same reference numerals or component designations as in the previous Fig. 1-4 used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used Fig. 1-4 referred or referred.
  • a probe element 33 arranged approximately a Tastusion 35 with a flat side 34.
  • the probe element 33 relative to the at least one bending tool 7 is pivotally supported about the working edge 22 or about an axis parallel to the working edge 22, wherein the working edge 22 acts on the bending leg 8 during the pivoting bending operation.
  • the flat side 34 of the feeler element 33 is or is applied to the contact surface 9 of the bending mandrel 8, as is clear from the Fig. 5 is apparent.
  • a change in the angular orientation between the bending leg 8 and the at least one bending tool 7 directly effects a rotary or pivoting movement of the feeler element 33, or follows the flat surface 34 resting against the contact surface 9 for pivoting the bending element 8 in relation to the at least one bending tool 7.
  • the at least one sensor device 11 may be assigned to the feeler element 33 or arranged in the feeler element 33. In such cases, there is preferably a non-positive and / or positive connection between the feeler element 33 and at least parts or sections of the at least one sensor device 11.
  • the at least one sensor device 11 may be formed by a rotary encoder 36 arranged in the feeler element 33. Changes in the angular orientation between the bending leg 8 and the at least one bending tool 7 are in this case during the Adjustment be transmitted by the probe element 33 to the encoder 36.
  • a rotary encoder 36 may in this case be designed, for example, as an incremental encoder or as an absolute encoder.
  • the use of a further sensor device for determining a deformation-induced change in position of the bending tool 7 to the solder may be useful.
  • the path coordinates and / or path movement data for a downstream movement section can in turn be generated in such a way that the adjustment movements of the at least one bending tool 7 in each case run at least substantially at right angles to the contact surface 9.
  • the at least one sensor device 11 is formed by a tilt sensor 37 connected to the feeler element 33, as shown in FIG Fig. 6 is shown.
  • FIG Fig. 6 the same reference numerals or component names for the same parts as in the preceding Fig. 1-5 used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used Fig. 1-5 referred or referred.
  • changes in the angular orientation between the bending leg 8 and the at least one bending tool 7 are transmitted to the inclination sensor 37 by the feeler element 33 in this case.
  • the path coordinates and / or path movement data for a downstream movement section can in turn be generated in such a way that the adjustment movements of the at least one bending tool 7 in each case run at least substantially at right angles to the contact surface 9.
  • the at least one sensor device 11 can also be designed to determine the sliding movement of the at least one bending tool 7 along the contact surface 9 of the bending mandrel 8. In this way, relative movements between bending leg 8 and the at least one bending tool 7 can be detected or determined.
  • a variant is in the Fig. 7 shown, again for like parts, the same reference numerals or component names as in the previous Fig. 1-6 be used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used Fig. 1-6 referred or referred.
  • path coordinates and / or path movement data for a downstream movement section can be generated in such a way that the downstream movement section is superimposed with a compensatory movement directed counter to a sliding movement determined in an upstream movement section.
  • a determined in an upstream movement section sliding movement is in the Fig. 7 shown styled by arrow 38.
  • a superimposed compensation movement in the opposite direction to a determined sliding movement in a downstream movement section is stylized in Fig. 7 represented by arrow 39.
  • the path coordinates or path motion data for a downstream movement section can in turn also be generated such that the adjustment movements of the at least one bending tool 7 each extend at least substantially at right angles to the contact surface 9 of the bending element 8 (arrow 14).
  • a probe element 33 with a flat side 34 such as a Tastusion 35 is rotatably or pivotally mounted, the flat side 34 during the adjustment of the contact surface 9 of the bending gift 8 is applied, and the at least one sensor device 11 is arranged in the probe element 33.
  • the flat side 34 of the feeler element 33 abuts against the bending leg 8 or its contact surface 9 during an adjustment movement or during a bending operation, and thus in turn follows the pivoting of the bending mandrel 8 in relation to the at least one bending tool 7.
  • the at least one sensor device 11 for determining sliding movements of the at least one bending tool 7 along the contact surface 9 may be formed, for example, by an optical motion sensor 40.
  • the optical motion sensor 40 comprises a lighting device 41 and an image sensing device 42.
  • the lighting device 41 illuminates a section on the contact surface 9, which section is detected cyclically by the image sensing device 42. Due to the always present surface structure of the contact surface 9 is of the image sensing device 42 during a relative movement or sliding movement of the bending tool 7 along the contact surface 9 in relation to the optical Motion sensor 40 detects a steady changing surface pattern.
  • the acquired images are processed by an evaluation logic, not shown, and analyzed to determine from successive images of the illuminated portion of the contact surface 9, a motion vector, which includes information regarding the direction and extent of a successful sliding movement.
  • a motion vector which includes information regarding the direction and extent of a successful sliding movement.
  • Such an embodiment of the at least one sensor device 11 as an optical motion sensor 40 is known, for example, from optical computer mice.
  • the at least one sensor device 11 or the motion sensor 40 designed to determine sliding movements follows in its orientation the pivoting movement of the feeler element 33. This can be effected, for example, by virtue of a non-positive and / or positive connection between the at least one sensor device 11 and the feeler element 33. As a result, an always identical orientation of the motion sensor 40 is ensured to the bending leg 8, and the determined data for sliding movements can not be affected by a varying alignment between the motion sensor 40 and bending leg 8.
  • the optical motion sensor 40 which is preferably used for determining sliding movements
  • other sensor devices for this purpose are also possible or usable.
  • the at least one sensor device 11 for determining sliding movements is formed by a contact element, such as a roller or the like, which is pressed against the bending leg 8, for example by means of spring force.
  • the detection of relative movements between the bending leg and the at least one bending tool by means of a sensor device will be sufficient.
  • the use of a combination of several, different sensors may be useful.
  • the relative movement data and / or the generated path coordinates and / or path movement data sensory determined in the course of a swivel bending process in one or more data storage device data technically connected to the control device for use for subsequent, equally executed bending processes get saved.
  • knowledge about the bending processes that have been carried out can be obtained, and the knowledge gained can be used to improve future swivel bending processes.
  • the respective first bending process of a series of bending processes to be carried out identically is carried out with a lower adjustment speed for the at least one bending tool.
  • the sampling rate or the number of measurements for determining relative movements between bending leg and the at least one bending tool for a respective first bending operation per unit time or per degree bending angle can be increased.
  • an improvement in the accuracy for the generation of path coordinates or path motion data for the respective downstream movement sections can be achieved, which improvement can advantageously be used for the following identical bending formations.
  • the following bending processes to be carried out in the same way can be carried out with a higher adjustment speed, wherein the sensory measurements for determining relative movements in the subsequent pivoting bending processes can be used to correct deviating influencing factors, such as different material thicknesses of the workpieces and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Claims (16)

  1. Procédé de cintrage contrôlé de pièces pour la fabrication de pièces formées à l'aide d'un dispositif de cintrage (1) avec au moins un outil de pliage (7) agissant sur une surface de contact (9) d'une branche de pliage (8) de la pièce (3), qui est disposé dans un porte-outil (6) réglable avec au moins deux degrés de liberté, comprenant :
    la génération de coordonnées de trajectoire et/ou de données de mouvement sur une trajectoire pour un mouvement de réglage de l'au moins un outil de pliage (7) au moyen d'un dispositif de commande (10), le mouvement de réglage étant constitué d'une suite de portions de mouvement,
    et la transmission des coordonnées de trajectoire et/ou des données de mouvement sur la trajectoire à au moins un entraînement de réglage pour l'au moins un outil de pliage (7) ou au porte-outil (6) réglable,
    caractérisé en ce que
    le dispositif de cintrage (1) comprend au moins un dispositif de capteur (11) relié à une logique d'analyse, qui est conçu pour la détermination d'un mouvement relatif entre la branche de pliage (8) et l'au moins un outil de pliage (7), le mouvement relatif comprenant une modification de l'orientation angulaire entre la branche de pliage (8) et l'au moins un outil de pliage (7) ou un mouvement de glissement de l'au moins un outil de pliage (7) le long de la surface de contact (9) de la branche de pliage (8),
    les données de mouvement relatif déterminées par l'au moins un dispositif de capteur (11) dans une portion de mouvement disposée en amont sont transmises au dispositif de commande (10),
    et les coordonnées de la trajectoire et/ou les données de mouvement sur la trajectoire pour une portion de mouvement disposée en aval sont générées à l'aide des données de mouvement relatif déterminées, de façon à ce que les mouvements de glissement le long de la surface de contact (9) soient minimisées le plus possible.
  2. Procédé selon la revendication 1, caractérisé en ce que l'au moins un dispositif de capteur (11) est conçu pour la détermination de la modification de l'orientation angulaire entre la branche de pliage (8) et l'au moins un outil de pliage (7) et les coordonnées de la trajectoire et/ou les données de mouvement sur la trajectoire pour une portion de mouvement disposée en aval sont générées de façon à ce que le mouvement de réglage de l'au moins un outil de pliage (7) s'étende dans une portion de mouvement disposée en aval, de manière globalement perpendiculaire par rapport à la surface de contact (9).
  3. Procédé selon la revendication 2, caractérisé en ce que l'au moins un dispositif de capteur (11) est constitué d'un dispositif de mesure par réflexion optique (16), qui comprend au moins un dispositif d'éclairage (17), un moyen de détection optique (18) avec une surface de détection de lumière (19) ainsi qu'un corps de réflexion (20) à symétrie de rotation avec une surface réfléchissante, un axe central (21) du corps de réflexion (20) à symétrie de rotation étant parallèle à une arête de travail (22) de l'au moins un outil de pliage (7), et un premier rayon lumineux (23) émis par le dispositif d'éclairage (17) étant réfléchi par la branche de pliage (8) et étant guidé, en tant que deuxième rayon lumineux (24), vers le corps de réflexion (20) à symétrie de rotation et le deuxième rayon lumineux (24) étant réfléchi au niveau corps de réflexion (20) à symétrie de rotation et étant guidé, en tant que troisième rayon lumineux (25) vers le moyen de détection optique (18), plus particulièrement sur sa surface de détection de lumière (19), une modification de l'orientation angulaire étant déterminée par la détermination de la position des maxima d'intensité lumineuse sur la surface de détection de lumière (19) à l'aide d'une logique d'analyse.
  4. Procédé selon la revendication 3, caractérisé en ce que le dispositif de mesure par réflexion optique (16) est fixé sur le porte-outil (6) et pendant le mouvement de réglage est entraîné avec le porte-outil (6).
  5. Procédé selon la revendication 3, caractérisé en ce que le dispositif de mesure par réflexion optique (16) est fixé dans une extrémité avant d'au moins un outil de pliage (7) orientée vers la surface de contact (9) et, pendant le mouvement de réglage, est entraîné avec l'au moins un outil de pliage (7).
  6. Procédé selon la revendication 3, caractérisé en ce que le dispositif de mesure par réflexion optique (16) est fixé dans une extrémité avant d'un outil à capteur (12) disposé séparément dans le porte-outil (6), orientée vers la surface de contact (9) et, pendant le mouvement de réglage, est entraîné avec l'outil à capteur (12).
  7. Procédé selon la revendication 5 ou 6, caractérisé en ce que, avec l'au moins un outil de pliage (7) ou l'outil à capteur (12), un autre dispositif de capteur (30) est relié par complémentarité de forme ou par force, à l'aide duquel, dans une portion de mouvement disposée en amont, une modification, provoquée par une déformation, d'une position angulaire (43) de l'au moins un outil de pliage (7) ou de l'outil à capteur (12) par rapport à la verticale est déterminé, les données de la position angulaire sont transmises au dispositif de commande (10) et les coordonnées de la trajectoire et/ou les données de mouvement sur la trajectoire sont générées pour une portion de mouvement disposée en aval en utilisant en outre ces données de position angulaire déterminées.
  8. Procédé selon la revendication 7, caractérisé en ce que l'autre dispositif de capteur (30) est constitué d'un capteur d'inclinaison (32) à l'aide duquel une modification, provoquée par une déformation, de la position angulaire (43) de l'au moins un outil de pliage (7) ou de l'outil à capteur (12) par rapport à la verticale est déterminée.
  9. Procédé selon la revendication 7, caractérisé en ce que l'autre dispositif de capteur (30) est constitué d'un gyroscope à l'aide duquel une modification, provoquée par une déformation, de la position angulaire (43) de l'au moins un outil de pliage (7) ou de l'outil à capteur (12) est déterminée.
  10. Procédé selon l'une des revendications 7 à 9, caractérisé en ce que les coordonnées de trajectoire et/ou les données de mouvement sur la trajectoire générées pour une portion de mouvement disposée en aval sont corrigées à l'aide d'une modification de la position angulaire (43), déterminée au moyen de l'autre dispositif de capteur (30), de l'au moins un outil de pliage (7).
  11. Procédé selon la revendication 2, caractérisé en ce que, dans une extrémité avant, orientée vers la surface de contact (9), d'au moins un outil de pliage (7), est disposé un élément palpeur (33), plus particulièrement un disque palpeur (35) avec un côté plat (34), rotatif ou pivotant, le côté plat (34) s'appuyant, pendant un mouvement de réglage, contre la surface de contact (9) de la branche de pliage (8) et l'au moins un dispositif de capteur (11) correspondant à l'élément palpeur (33).
  12. Procédé selon la revendication 11, caractérisé en ce que l'au moins un dispositif de capteur (11) est constitué d'un capteur de rotation (36), les modifications de l'orientation angulaire entre la branche de pliage (8) et l'au moins un outil de pliage (7) étant transmises, pendant un mouvement de réglage, par l'élément palpeur (33) au capteur de rotation (36).
  13. Procédé selon la revendication 11, caractérisé en ce que l'au moins un dispositif de capteur (11) est constitué d'un capteur d'inclinaison (37) relié avec l'élément palpeur, les modifications de l'orientation angulaire entre la branche de pliage (8) et l'au moins un outil de pliage (7) étant transmises, pendant un mouvement de réglage, par l'élément palpeur (33) au capteur d'inclinaison (37).
  14. Procédé selon la revendication 1, caractérisé en ce que l'au moins un dispositif de capteur (11) est conçu pour la détermination du mouvement de glissement de l'au moins un outil de pliage (7) le long de la surface de contact (9) de la branche de pliage (8) et les coordonnées de la trajectoire et/ou les données de mouvement sur la trajectoire sont générées pour une portion de mouvement disposée en aval de façon à ce que la portion de mouvement disposée en aval soit superpose avec un mouvement de compensation dans le sens contraire d'un mouvement de glissement déterminé par rapport à une portion de mouvement disposée en amont.
  15. Procédé selon la revendication 14, caractérisé en ce que, dans une extrémité avant, orientée vers la surface de contact (9), d'un outil de pliage (7), est disposé un élément palpeur (33), plus particulièrement un disque palpeur (35) avec un côté plat (34), rotatif ou pivotant, le côté plat (34) s'appuyant, pendant le mouvement de réglage, contre la surface de contact (9) de la branche de pliage (8) et l'au moins un dispositif de capteur (11) correspondant à l'élément palpeur (33).
  16. Procédé selon la revendication 15, caractérisé en ce que l'au moins un dispositif de capteur (11) est constitué d'un capteur de mouvement optique (40) comprenant un dispositif d'éclairage (41) et un dispositif de détection d'image (42) et, pendant un mouvement de réglage, dans un capteur de mouvement disposé en amont, sont déterminées, par le capteur de mouvement optique (40), des mouvements de glissement de l'au moins un outil de pliage (7) le long de la surface de contact (9).
EP16735974.4A 2015-05-26 2016-05-23 Procédé de cintrage Active EP3302839B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50421/2015A AT516834B1 (de) 2015-05-26 2015-05-26 Verfahren zum Schwenkbiegen
PCT/AT2016/050156 WO2016187633A1 (fr) 2015-05-26 2016-05-23 Procédé de cintrage

Publications (2)

Publication Number Publication Date
EP3302839A1 EP3302839A1 (fr) 2018-04-11
EP3302839B1 true EP3302839B1 (fr) 2019-03-20

Family

ID=56368731

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16735974.4A Active EP3302839B1 (fr) 2015-05-26 2016-05-23 Procédé de cintrage

Country Status (3)

Country Link
EP (1) EP3302839B1 (fr)
AT (1) AT516834B1 (fr)
WO (1) WO2016187633A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020214784A1 (de) 2020-11-25 2022-05-25 Volkswagen Aktiengesellschaft Verfahren und Vorrichtung zum Umformen eines Bauteils
AT524818B1 (de) * 2021-02-23 2023-01-15 Trumpf Maschinen Austria Gmbh & Co Kg Verfahren und Vorrichtung zum Umformen eines Werkstückes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3441113A1 (de) * 1984-11-10 1986-05-15 Klöckner-Moeller Elektrizitäts GmbH, 5300 Bonn Biegemaschine mit nummerischer steuerung
DE3739173A1 (de) * 1987-11-19 1989-06-01 Feintool Int Holding Verfahren und vorrichtung zum biegen von werkstuecken
ITTO20050880A1 (it) * 2005-12-16 2007-06-17 Crea Srl Macchina combinata pannellatrice-piegatrice
DE202006020110U1 (de) * 2006-10-24 2007-10-25 Hans Schröder Maschinenbau GmbH Schwenkbiegemaschine zur Messung und/oder Korrektur der Werkstückform nach dem Umformen durch Biegen
DE102008038932A1 (de) * 2008-08-13 2010-02-18 Klingel, Hans, Dr. Ing. e.h. Schwenkbiegemaschine
AT514821B1 (de) * 2013-10-04 2015-06-15 Trumpf Maschinen Austria Gmbh Biegepresse und Biegeverfahren

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
AT516834A4 (de) 2016-09-15
AT516834B1 (de) 2016-09-15
EP3302839A1 (fr) 2018-04-11
WO2016187633A1 (fr) 2016-12-01

Similar Documents

Publication Publication Date Title
DE102008049821B4 (de) Abstandssensor und Verfahren zur Ermittlung eines Abstands und/oder von Abstandsschwankungen zwischen einem Bearbeitungslaser und einem Werkstück
EP1681111B1 (fr) Méthode d'utilisation d'un dispositif de fabrication
DE112006001423B4 (de) Koordinatenmessgerät sowie Verfahren zum Messen eines Objektes mit einem Koordinatenmessgerät
WO2015044210A1 (fr) Réduction d'erreurs d'un dispositif de rotation qui est utilisée lors de la détermination de coordonnées d'une pièce ou lors de l'usinage d'une pièce
EP2418040B1 (fr) Procédé de contrôle d'un dispositif de soudure par laser
DE102006013584A1 (de) Vorrichtung und Verfahren zum Vermessen von Bauteilen
DE102006018558A1 (de) Vorrichtung zum automatischen Aufbringen oder Erzeugen und Überwachen einer auf einem Substrat aufgebrachten Struktur mit Ermittlung von geometrischen Abmessungen sowie ein entsprechendes Verfahren hierfür
EP3146293B1 (fr) Dispositif et procédé de mesure géométrique d'un objet
EP2917000A1 (fr) Procédé et système de production pour positionner deux unités mobiles dans une position relative mutuelle
EP3044536B1 (fr) Procédé et dispositif de mesure de taraudages d'une pièce usinée au moyen d'un capteur optique
DE10211070A1 (de) Vorrichtung zum Vermessen eines Messobjekts
EP1342514B1 (fr) Dispositif pour detecter un angle de cintrage d'un anneau, et procédé de régulation d'une cintreuse
EP2311583B1 (fr) Procédé de détermination de l'épaisseur d'une pièce à usiner à l'aide d'une plieuse et une telle plieuse
EP3487642A1 (fr) Procédé et dispositif permettant de déterminer la planéité d'un matériau en bande et installation de traitement dotée d'un tel dispositif
CH714443A1 (de) Verfahren und Vorrichtung zur Vermessung eines Wälzbearbeitungswerkzeugs.
EP3302839B1 (fr) Procédé de cintrage
DE4411263C2 (de) Verfahren zur Überprüfung der Führungsgenauigkeit einer Brennschneidmaschine und Anordnung zur Durchführung des Verfahrens
EP2010865A1 (fr) Mesure de profil d'extrémités de tube
EP1460375A2 (fr) Procédé et dispositif pour mesurer la géométrie d'une bande de matériau
EP1184121B1 (fr) Procédé et dispositif pour mesurer et corriger le profil de tension de lames de scies
EP2983842B1 (fr) Presse plieuse avec un dispositif de mesure d'angle de pliage
DE102011008716A1 (de) Verfahren und Vorrichtung zur Messung von Rotationsbewegungen von Werkzeugmaschinenschlitten
DE102017007590A1 (de) Verfahren und Vorrichtung zur Erfassung von dreidimensionalen Objekten auf Basis des Lichtschnittverfahrens
EP3204718B1 (fr) Dispositif de mesure d'angle de cintrage
DE10249300A1 (de) Vorrichtung zur Erfassung eines Ringbiegewinkels, insbesondere eines Biegewinkels, eines Werkstücks, insbesondere eines Biegeteils, sowie ein Verfahren zur Regelung einer Biegemaschine

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20171222

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: B21D 5/00 20060101AFI20180912BHEP

Ipc: B21D 5/04 20060101ALI20180912BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20181019

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ANGERER, GERHARD

Inventor name: HAUSMANN, FLORIAN

Inventor name: FREUDENTHALER, KLEMENS

Inventor name: WALDHERR, MANFRED

Inventor name: STEININGER, VERENA

Inventor name: MAIER, FLORIAN

Inventor name: HOERL, MATTHIAS

Inventor name: THEIS, HELMUT

Inventor name: KOVJENIC, NENAD

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502016003846

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1110026

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190415

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: ABP PATENT NETWORK AG, CH

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190620

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CZ

Payment date: 20190528

Year of fee payment: 4

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190620

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190621

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190720

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190720

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502016003846

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190531

26N No opposition filed

Effective date: 20200102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200523

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20160523

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1110026

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210523

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230509

Year of fee payment: 8

Ref country code: FR

Payment date: 20230508

Year of fee payment: 8

Ref country code: DE

Payment date: 20230508

Year of fee payment: 8

Ref country code: CH

Payment date: 20230602

Year of fee payment: 8