摘要:
Die vorliegende Erfindung beschreibt eine Vorrichtung und ein Verfahren zur Vermessung der Prägetiefe von Markierungen an einem Werkstück, die einen an einer Markiervorrichtung mit NC-Steuerung angebrachten Sensor für die Erfassung der Prägetiefe umfasst, wobei die NC-Steuerung mit der Elektronik des Sensors integriert ist, so dass die Steuerdaten der NC-Steuerung ebenfalls für die Positionierung und wahlweise Parametrierung des Sensors sowie zur positionsabhängigen Bewertung der Messwerte zur Verfügung stehen zur Verfügung stehen.
摘要:
A surface sensor unit and method therefore for controlling the penetration depth of a cutting tool of a numerically controlled machine and a method for controlling the penetration depth of a cutting tool of a numerically controlled machine are described. The surface sensor unit comprises: a substantially cylindrical collar extending around at least part of the cutting tool, said collar being axially movable with respect to the axis of rotation of the cutting tool; an electronic sensor secured to a non-rotatable housing of the numerically controlled machine, said sensor being capable of communicating or having a communication device connected thereto, said sensor being situated adjacent the collar and axially rearward thereof; restraining means for preventing an axially rearward end of the collar from touching an axially forward end of the electronic sensor when the collar is not being subjected to a force acting in a rearward axial direction; and depth control means for pre-positioning of the collar relative to the cutting tool in the axial direction.
摘要:
A computer controlled engraving system having a non-volatile memory (40) loaded with error coefficients. The error coefficients represent previously experienced differences between computed cell configuration values and corresponding configuration values for cells actually engraved. Sets of error coefficients are tabulated and stored in the memory (40) along with associated setup parameters. Setup of the engraving system for a new job is swiftly accomplished by using values of the setup parameters to retrieve sets of approximate error coefficients, from which interpolated values are obtained. The interpolated values of the error coefficients then are used for calculating configuration control parameters such as AC gain, video gain and white offset.
摘要:
A computer controlled engraving system having a non-volatile memory (40) loaded with error coefficients. The error coefficients represent previously experienced differences between computed cell configuration values and corresponding configuration values for cells actually engraved. Sets of error coefficients are tabulated and stored in the memory (40) along with associated setup parameters. Setup of the engraving system for a new job is swiftly accomplished by using values of the setup parameters to retrieve sets of approximate error coefficients, from which interpolated values are obtained. The interpolated values of the error coefficients then are used for calculating configuration control parameters such as AC gain, video gain and white offset.
摘要:
An error detection apparatus and method for use with engravers, suc has gravure engravers. An error value E corresponding to the difference between a set of predetermined setup parameters and actual measurement of a portion of an engraved area on the cylinder is determined. The error value E is then used to adjust the engraver to engrave an actual cut or etch in accordance with the set of predetermined setup parameters. Advantageously, an error detection and correction system is suitable for providing a closed-loop system for engraving a cylinder. The apparatus and method may be used during initial setup or during normal operation of the engraver. Other features include an autofocus routine to facilitate the autofocus procedure. Also, image processing is further enhanced by gap filling, discontinuity removal, and light calibration methods which may be used alone, in combination with each other, or in combination with the automatic focus system and/or automatic shoe system. Other embodiments of the invention illustrate the use of a polarizing element to polarize reflected light, as well as light directed to a surface of the cylinder prior to reflection, and the use of a light emitting diode (LED) for illuminating the surface of the cylinder. The features of the improved optic system facilitate reducing or eliminating image noise, such as glare, 'blooming', inconsistent illumination, and enhances the quality of the image captured by a CCD array associated with the camera used in the imager or imaging system.
摘要:
Die Erfindung betrifft ein Verfahren zur Ermittlung der Eindringtiefe (Y1, Y2) eines Bearbeitungswerkzeuges (7) in Gegenstände (15), wobei die Strecke gemessen wird, auf welcher dem Bearbeitungswerkzeug (7) während seiner Vorschubbewegung in den zu bearbeitenden Gegenstand (15) ein von diesem erzeugter Widerstand (F) entgegengesetzt wird. Damit wird ein einfach umsetzbares und sicher arbeitendes Verfahren zur Ermittlung der Eindringtiefe (Y1, Y2) eines Bearbeitungswerkzeugs (7) in einen zu bearbeitenden Gegenstand (15) geschaffen. Ein solches Verfahren ist insbesondere deshalb sehr sicher, da an dem Bearbeitungswerkzeug (7) nur solange schnittkraftbedingte Belastungen (F) auftreten, solange das Bearbeitungswerkzeug (7) Material von dem zu bearbeitenden Gegenstand (15) abträgt.
摘要:
An automatic tool changing and verification system and method and system for switching engraving heads is shown. The tool changing method and system comprises a turret having a plurality of work holders for holding a plurality of replacement tools. Some of the work holders are empty for receiving a worn tool from an engraving head on the engraver. When it is desired to change a tool on the engraving head, an empty tool holder is indexed to a tool changing position opposite the engraving head whereupon the worn tool is transferred from the engraving head to the tool changer. Thereafter, the tool changer is indexed to position where a replacement tool is situated in opposed relationship with the engraving head. In the embodiment shown, the tool changer comprises a pneumatic system for causing the worn tools and replacement tools to be transferred between the engraving head and the tool changer. Other features of the invention comprise a tool verification routine for verifying that a tool on an engraving head is the correct tool and/or is not defective. Moreover, another aspect of the invention includes a engraving head turret having multiple engraving heads for indexing into engraving relationship with a cylinder to be engraved. The multiple-engraving head turret facilitates, for example, reducing the number of required tool changes.
摘要:
A computer controlled engraving system having a non-volatile memory (40) loaded with error coefficients. The error coefficients represent previously experienced differences between computed cell configuration values and corresponding configuration values for cells actually engraved. Sets of error coefficients are tabulated and stored in the memory (40) along with associated setup parameters. Setup of the engraving system for a new job is swiftly accomplished by using values of the setup parameters to retrieve sets of approximate error coefficients, from which interpolated values are obtained. The interpolated values of the error coefficients then are used for calculating configuration control parameters such as AC gain, video gain and white offset.
摘要:
Die vorliegende Erfindung beschreibt eine Vorrichtung und ein Verfahren zur Vermessung der Prägetiefe von Markierungen an einem Werkstück, die einen an einer Markiervorrichtung mit NC-Steuerung angebrachten Sensor für die Erfassung der Prägetiefe umfasst, wobei die NC-Steuerung mit der Elektronik des Sensors integriert ist, so dass die Steuerdaten der NC-Steuerung ebenfalls für die Positionierung und wahlweise Parametrierung des Sensors sowie zur positionsabhängigen Bewertung der Messwerte zur Verfügung stehen zur Verfügung stehen.
摘要:
An error detection apparatus and method for use with engravers, such as gravure engravers. An error value E corresponding to the difference between a set of predetermined setup parameters and actual measurement of a portion of an engraved area on the cylinder (10) is determined. The error value E is then used to adjust the engraver to engrave an actual cut or etch in accordance with the set of predetermined setup parameters. Advantageously, an error detection and correction system is suitable for providing a closed-loop system for engraving a cylinder (10). The apparatus and method may be used during initial setup or during normal operation of the engraver.