EP3924135A1 - Procédé d'installation d'une machine-outil et système de fabrication - Google Patents

Procédé d'installation d'une machine-outil et système de fabrication

Info

Publication number
EP3924135A1
EP3924135A1 EP20706082.3A EP20706082A EP3924135A1 EP 3924135 A1 EP3924135 A1 EP 3924135A1 EP 20706082 A EP20706082 A EP 20706082A EP 3924135 A1 EP3924135 A1 EP 3924135A1
Authority
EP
European Patent Office
Prior art keywords
workpiece carrier
machine tool
real
machining head
time localization
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.)
Pending
Application number
EP20706082.3A
Other languages
German (de)
English (en)
Inventor
Christof Sailer
Christoph Scharfenberg
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 Laser und Systemtechnik GmbH
Original Assignee
Trumpf Laser und Systemtechnik GmbH
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 Laser und Systemtechnik GmbH filed Critical Trumpf Laser und Systemtechnik GmbH
Publication of EP3924135A1 publication Critical patent/EP3924135A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/03—Observing, e.g. monitoring, the workpiece
    • B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/0869—Devices involving movement of the laser head in at least one axial direction
    • B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
    • B23K26/0884—Devices involving movement of the laser head in at least one axial direction in at least two axial directions in at least in three axial directions, e.g. manipulators, robots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02—Carriages for supporting the welding or cutting element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
    • B23Q17/2233—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool relative to the workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
    • B23Q17/2428—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring existing positions of tools or workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
    • B23Q17/248—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves using special electromagnetic means or methods
    • B23Q17/249—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves using special electromagnetic means or methods using image analysis, e.g. for radar, infrared or array camera images
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/32—Accessories
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates

Definitions

  • the invention relates to a method for setting up a machine tool, in which a workpiece carrier is arranged in a work space of the machine tool.
  • the invention also relates to a production system having a machine tool with a machining head and a workpiece carrier.
  • the workpiece For machining, in particular three-dimensional machining, of a workpiece by means of a machine tool, the workpiece is typically fixed in the work space of the machine by means of a workpiece carrier. This is also known as setting up the machine tool. For precise machining of the workpiece, the machine tool or its control must know exactly where the workpiece is located in the work area.
  • An NC program to control the machining must be adapted to the specific position and alignment of the workpiece. This is referred to as setup, especially 3D setup, or run-in.
  • setup especially 3D setup, or run-in.
  • a zero point of the NC program and a fixed point on the workpiece carrier or workpiece are brought into congruence so that the NC program fits the workpiece in terms of translation and rotation and complies with all tolerances.
  • This setup process step is traditionally very complex.
  • the position and alignment of a three-dimensional component is often determined using a measuring probe. This process requires a lot of time, trained personnel and is also prone to errors. In particular, human errors cannot be ruled out, even with trained personnel.
  • optical methods such as very expensive laser triangulation are also used to determine the workpiece position and orientation. Special stops made with high precision are also often used, which are correspondingly expensive.
  • Another disadvantage of the known methods is that they can only be automated to a very limited extent, in particular not completely.
  • the invention thus relates to a method for setting up a machine tool, with the steps
  • step a) the workpiece carrier is first placed in the work area of the machine tool and fastened there, for example clamped to a work table.
  • the workpiece carrier can be arranged in the work space together with a workpiece held by the workpiece carrier.
  • the workpiece carrier can initially be arranged alone (without a workpiece) in the work space and the workpiece can then be fixed to the workpiece carrier.
  • the workpiece can also be fastened to the workpiece carrier after steps b) and c) have been carried out. If the workpiece is already attached to the workpiece carrier when performing step c), optical features of the workpiece can also be used for fine alignment in step c). In this respect, the workpiece can be viewed as part of the workpiece carrier.
  • the machining head of the machine tool is aligned relative to the workpiece carrier.
  • This means that the machining head is brought into a specific relative position and possibly orientation with respect to the workpiece carrier.
  • the relative position can be defined, for example, by the fact that an excellent point on the machining head, for example a tool or an optical element, has is to be arranged a predetermined distance vertically above a marked point on the workpiece carrier.
  • the machining head is aligned in the two steps b) and c) in the context of an upstream rough alignment and a subsequent fine alignment.
  • a real-time localization system preferably an indoor GPS, is used for rough alignment in step b).
  • Such a system typically allows the position of an object to be determined to within a few centimeters.
  • At least one first position-determining means of the real-time localization system is arranged on it. At least one further first position determining means of the real-time localization system is preferably also arranged on the machining head.
  • Second position determination means of the real-time localization system are arranged in a stationary manner with respect to the machine tool (or with respect to its workspace or work table). The first and second position determination means communicate with one another in a manner known per se, so that the positions of the respective first position determination means can be determined. These positions are typically transmitted to a control system of the machine tool. The control system can typically also determine the position of the machining head independently of the real-time localization system.
  • the machining head can be pre-positioned, ie roughly aligned, based on its known position and the position of the workpiece carrier determined by means of the real-time localization system.
  • the machining head is precisely aligned relative to the workpiece carrier.
  • An image processing system is used for this.
  • the image processing system records optical features of the workpiece carrier and optionally also of the processing head. That way you can the position and, if necessary, the alignment of the machining head relative to the workpiece carrier can be determined with an accuracy in the micrometer range, preferably to a maximum of 100 ⁇ m, particularly preferably to a maximum of 10 ⁇ m.
  • the image processing system can detect optical features, for example edges of the workpiece carrier or optical identifications, such as target crosses or points.
  • the method according to the invention allows the process of setting up the machine tool (possibly apart from arranging the workpiece in the workspace) to be fully automated and carried out very quickly. There is no need for trained personnel, since steps b) and c) of setting up programmed routines can be carried out. Furthermore, the method according to the invention allows the workpiece carrier to be positioned essentially as desired in step a). The real-time localization system detects its position and enables the machining head to be positioned close to the workpiece carrier for optical fine alignment without the need for human interaction with the machine tool.
  • the method according to the invention is preferably carried out with a manufacturing system according to the invention described below.
  • step b) the position of the workpiece carrier is first determined by means of the real-time localization system and a target position of the rough alignment for the machining head is determined from the determined position of the workpiece carrier.
  • the machining head can then be moved into the target position starting from its position known to a control system of the machine tool.
  • the orientation of the workpiece carrier can also be determined using the real-time localization system.
  • at least three first position determining means are typically arranged on the workpiece carrier.
  • a target orientation for the machining head can be determined from the determined orientation of the workpiece carrier. It is also particularly preferably provided that the machining head is moved to the target position of the rough alignment while its position is monitored by the real-time localization system.
  • at least one further first position determination means is arranged on the machining head. Possibly. the machining head can be rotated into the target orientation while its orientation is monitored by the real-time localization system. In this way, the positions and possibly orientations of the workpiece carrier and machining head are determined using the same method, namely using the real-time localization system.
  • the machining head In the target position, the machining head is positioned close to the workpiece carrier, so that systematic errors in the real-time localization system occur for both components in approximately the same type and size. In this way, the accuracy of the rough alignment can be improved. In particular, it can be achieved in such a way that the target position of the machining head relative to the workpiece carrier is reached with an accuracy that is below the accuracy of the determination of absolute positions by means of the real-time localization system.
  • the real-time localization system can be used to determine absolute positions to within a few centimeters, whereas the relative position of two objects that are close together can be determined to within a few millimeters.
  • the monitoring of the position and, if necessary, the orientation of the machining head can be carried out continuously or at time intervals.
  • the workpiece carrier has first position-determining means which are used both in step b) for rough alignment and in step c) for fine alignment of the machining head.
  • first position-determining means also in step c)
  • fewer, preferably none, additional optical markings for the image processing system need to be attached to the workpiece carrier.
  • the first position determination means can be recognized as such by the image processing system.
  • the first position determination means preferably carry optical identifications. In this way, the precision of the fine alignment can be further improved.
  • a particularly preferred variant of the method is characterized in that a camera of the image processing system arranged on the processing head is used in step c). This simplifies the implementation of step c) and further improves the accuracy.
  • the position of the camera on the processing head can (once) be determined very precisely.
  • the camera detects optical features of the workpiece carrier so that the machining head can be aligned relative to the workpiece carrier with great precision.
  • the camera is typically arranged on the machining head in such a way that it detects the workpiece carrier when the machining head has been roughly aligned in step b).
  • a distance between the machining head and the workpiece carrier is determined from the sharpness of an image recorded by the camera, in particular by focusing the camera. This allows step c) to be carried out particularly quickly.
  • the camera on the machining head captures the workpiece carrier from two different perspectives, in particular from two mutually perpendicular directions. This allows an even more precise fine alignment of the machining head.
  • the processing head can typically be controlled and moved so precisely that it can be pivoted and possibly moved in the second perspective to pick up the workpiece carrier without impairing information already obtained about the relative position.
  • the workpiece carrier preferably transmits information about machining to be carried out to a control system of the machine tool. In this way it can be ensured that the correct machining is carried out on a workpiece on the workpiece carrier.
  • the control system can control the machining head for machining the workpiece in the workpiece carrier.
  • the information can directly designate the processing to be carried out, for example with a program number. Alternatively, the information can identify the workpiece carrier and / or a type of workpiece received therein.
  • the control system can then take the processing to be carried out from a database.
  • the information can be stored or coded in a first position determining means on the workpiece carrier.
  • At least one first position-determining means of the real-time localization system is arranged on the workpiece carrier. At least one further first position-determining means of the real-time localization system is preferably arranged on the machining head.
  • second position-determining means of the real-time localization system are arranged in a stationary manner, in particular on the machine tool.
  • the second position determination means are preferably arranged in a stationary manner with respect to a work table for receiving the workpiece carrier, for example on the work table and / or on a housing of the machine tool. If the position of the machine tool is invariably and precisely known, the second position determination means can also be arranged in the vicinity of the machine tool, for example on structural elements of a production hall.
  • the first and second position determination means can interact in a manner known per se to determine the positions of the workpiece carrier and of the machining head. On the basis of the positions determined in this way, the machining head can be roughly aligned relative to the workpiece carrier.
  • the image processing system has a camera for capturing optical features of the workpiece carrier.
  • the camera can also be set up to record optical features of the machining head. The optical features recorded by the camera can be used to fine-tune the machining head relative to the workpiece carrier.
  • the manufacturing system according to the invention allows a method according to the invention described above to be carried out.
  • the production system is typically set up to carry out a method according to the invention as described above.
  • a control system of the machine tool can be suitably programmed for this purpose.
  • the first position determination means can be designed as receivers or tags.
  • the second position determining means can be designed as sensors or anchors or emitters; they can each have an antenna. Alternatively, the second position determining means as
  • the first position determining means are typically designed as sensors or anchors or emitters; they can each have an antenna.
  • the manufacturing system can have several workpiece carriers with the first
  • Have position determining means it can be provided that several workpiece carriers are arranged at the same time in the work space of the machine tool. The machine tool can then be set up for each of the multiple workpiece carriers with one run of the method according to the invention.
  • the first position determination means can be connected to an electrical system of the machine tool and / or via an electrical or electronic interface can be activated. Such active first position determination means can fulfill further functions, for example transmit information to a control system of the machine tool. At least three first position determining means of the real-time localization system are preferably arranged on the workpiece carrier. At least three first position determining means of the real-time localization system are preferably arranged on the workpiece carrier. At least three first
  • Position determination means of the real-time localization system be arranged.
  • An orientation of the workpiece carrier or machining head can be determined in each case using the at least three first position determination means.
  • the machining head can be brought closer to each of the at least three position determination means of the workpiece carrier.
  • the position and orientation of the workpiece carrier can be determined via the positions of the machining head known to a control system of the machine tool (measured in machine coordinates) when the alignment to the respective first position determination means has taken place.
  • the camera of the image processing system is preferably arranged on the processing head of the machine tool. A camera arranged on the machining head is positioned close to the workpiece carrier when the machining head is aligned. As a result, the fine alignment can be carried out with particularly great precision using the camera.
  • the first position determination means on the workpiece carrier particularly preferably have optical identifications for the image processing system.
  • the image processing system can recognize the optical markings.
  • the first position determination means can then be used for position determination by means of the real-time localization system and by means of the image processing system. With such first position determination means, the number of further optical markings to be provided on the workpiece carrier can be determined be reduced; In particular, additional optical markings on the workpiece carrier can be completely dispensed with.
  • One of the first position-determining means on the workpiece carrier can contain information about a processing to be carried out by the machine tool.
  • the manufacturing system in particular a control system of the machine tool, can be set up to receive this information.
  • the information can directly designate the processing to be carried out, for example with a program number.
  • the information can identify the workpiece carrier and / or a type of workpiece received therein.
  • the control system of the machine tool can take the processing to be carried out from a database.
  • the machining head is preferably designed as a laser machining head.
  • a laser processing head cannot be set up like a processing head for machining by so-called scratching.
  • the laser processing head can be designed for one or more of the processing types cutting, welding, laser metal deposition.
  • FIG. 2 shows the production system from FIG. 1 in a highly schematic side view
  • FIG. 3 shows a flow chart of a method for setting up a machine tool.
  • FIG. 1 shows a schematically illustrated manufacturing system 10 in a top view.
  • Figure 2 shows the manufacturing system 10 in a side view.
  • the manufacturing system 10 comprises a machine tool 12 with a processing head 14.
  • the processing head 14 is designed here as a laser processing head for laser processing, for example welding, cutting and / or laser metal deposition.
  • the machine tool 12 is shown in a highly abstracted manner in FIGS. 1 and 2; Movement possibilities of the machining head are indicated schematically in the figures (cf. double arrows), without this being intended to be associated with a restriction to a specific structural design of the machine tool 12.
  • the manufacturing system 10 further comprises a workpiece carrier 16.
  • a workpiece 18 is held on the workpiece carrier.
  • the workpiece carrier 16 is arranged on a work table 20 in a work space 22 of the machine tool 12.
  • the manufacturing system 10 also has a real-time localization system 24.
  • the real-time localization system 24 comprises first position determination means 26 which are arranged on the workpiece carrier 18.
  • the real-time localization System 24 further comprises a further, first position-determining means 28 which is arranged on processing head 14.
  • the real-time localization system 24 has second position determination means 30 which are arranged in a stationary manner, here on a housing 32 of the machine tool 12.
  • Position determination means 30 cooperate so that the positions of the workpiece carrier 16 or the machining head 14 can be determined.
  • position determination means 30 can communicate with a control system 33 of machine tool 12.
  • the manufacturing system 10 also has an image processing system 34.
  • the image processing system 34 comprises a camera 36, which is arranged here on the processing head 14. An optics of the camera 36 can be directed at the work table 20.
  • the image processing system 34 can include a software module in the control system 33 of the machine tool 12.
  • FIG. Figure 3 shows a
  • the machining head 14 When setting up, the machining head 14 is aligned for subsequent machining of the workpiece 18 in the workpiece carrier 16. After the set-up, the workpiece 18 can be machined, the machining head 14 traveling a predefined path starting from an end position after the set-up has been completed.
  • a first step 100 the workpiece carrier 16 with the workpiece 18 is arranged in the work space 22 of the machine tool 12.
  • the workpiece carrier 16 is fastened to the work table 20 in a manner known per se.
  • a subsequent step 102 the machining head 14 of the machine tool 12 is roughly aligned relative to the workpiece carrier 16.
  • the position and orientation of the workpiece carrier 16 in the work space 22 is first determined by means of the real-time localization system 24.
  • a target position for the machining head 14 is determined from this data in a substep 102b.
  • the target position can be determined, for example, by a defined distance above a marked point on the workpiece carrier 16.
  • the position of the machining head 14 is determined by means of the real-time localization system 24.
  • the accuracy of the rough alignment can be improved, since systematic errors of the real-time localization system 24 on the workpiece carrier 16 and occur in approximately the same way (amount and direction) in the machining head 14.
  • the machining head 14 is then moved to the target position in a substep 102d. At the latest when the target position is reached, preferably continuously during the process, the position of the machining head 14 is determined again with the real-time localization system 24. The position of the machining head 14 can then be corrected until the real-time localization system 24 determines a sufficiently precise correspondence with the target position.
  • the movement of the machining head 14 to the target position is therefore carried out under monitoring by the real-time localization system 24.
  • the target position can typically be reached with a precision of a few centimeters during rough alignment.
  • the first position determination means 26 or 28 and the second position determination means 30 work together.
  • the first and / or second Position determination means 26, 28, 30 also communicate with the
  • one of the first position determination means 26 on the workpiece carrier 16 contains information about a processing to be carried out on the workpiece 18. This information can also include information about the target position for the machining head 14. For example, in the context of determining the position of the workpiece carrier 14 in substep 102a, the information from the first position determining means 26 can be sent to the
  • Control system 33 are transmitted.
  • a fine alignment of the machining head 14 takes place in a step 104.
  • the image processing system 34 with the camera 36 is used for fine alignment.
  • the camera 36 is located on the machining head 14 in the vicinity of the workpiece carrier 16.
  • the camera 36 can therefore detect optical features of the workpiece carrier 16, for example edges or separately applied optical identifications.
  • the first position determination means 26 on the workpiece carrier 16 each have an optical identification, for example in the form of a point, optical code, or register cross. These optical features are recorded by the camera 36 and their position in the image section of the camera 36 is determined.
  • the actual positions of the first position-determining means 26 in the work space can be determined on the basis of the respective positions of the optical markings in the camera image and the actual coordinates of the machining head 14.
  • a distance from the workpiece carrier can be determined from the sharpness of the image recorded by the camera 36 and corrected accordingly.
  • the camera 36 is preferably focused on an optical feature of the workpiece carrier 16, focussed for example one of the first position determination means 26, so that the distance can be deduced from the focus position.
  • the camera 36 can be rotated in order to capture the workpiece carrier from a further perspective
  • the processing head 14 can typically be brought into a starting point for subsequent processing of the workpiece 18 with an accuracy of 100 ⁇ m, preferably 10 ⁇ m, particularly preferably 7 ⁇ m.
  • first position determining means 28
  • Method 102d of the machining head 14 to the target position transmitting 102aa of information

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Robotics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • Laser Beam Processing (AREA)

Abstract

L'invention concerne un procédé d'installation d'une machine-outil (12) comprenant les étapes suivantes : a) agencement d'un porte-outil (16) dans un espace de travail (22) de la machine-outil (12), b) orientation approximative d'une tête d'usinage (14) de la machine-outil (12) par rapport au porte-outil (16) au moyen d'un système de localisation en temps réel (24), c) orientation précise de la tête d'usinage (14) par rapport au porte-outil (16) au moyen d'un système de traitement d'images (34). L'invention concerne en outre un système de fabrication (10) présentant une machine-outil (12) munie d'une tête d'usinage (14), d'un porte-outil (16), d'un système de localisation en temps réel (24) et d'un système de traitement d'images (34). Au moins un premier moyen de détermination de position (26) du système de localisation en temps réel (24) est agencé sur le porte-outil (16). De préférence, au moins un autre moyen de détermination de position (28) du système de localisation en temps réel (24) est agencé au niveau de la tête d'usinage (14). Au moins un autre moyen de détermination de position (30) du système de localisation en temps réel (24) est agencé à demeure, en particulier sur la machine-outil (12). Le système de traitement d'images (34) présente une caméra (36) enregistrant les caractéristiques optiques du porte-outil (16). Le procédé et le système de fabrication permettent une installation rapide et automatisée de la machine-outil.
EP20706082.3A 2019-02-11 2020-02-11 Procédé d'installation d'une machine-outil et système de fabrication Pending EP3924135A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019201723.1A DE102019201723A1 (de) 2019-02-11 2019-02-11 Verfahren zum Einrichten einer Werkzeugmaschine und Fertigungssystem
PCT/EP2020/053398 WO2020165127A1 (fr) 2019-02-11 2020-02-11 Procédé d'installation d'une machine-outil et système de fabrication

Publications (1)

Publication Number Publication Date
EP3924135A1 true EP3924135A1 (fr) 2021-12-22

Family

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JP7317977B2 (ja) 2023-07-31
JP2022520209A (ja) 2022-03-29
CN113453835A (zh) 2021-09-28
DE102019201723A1 (de) 2020-08-13

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