Abstract:
The invention relates to a machine (1) for fluid jet cutting of a workpiece (2), comprising a stand (4) with two essentially parallel guides (6, 8) at a distance from each other. A control unit (15) is configured to control the motion of the bar, the bar (14) carries one or more fluid jet cutting tools (16A-D). Each end of the bar are arranged to the guides via a first journal means (18A) and a second journal means(20A). The machine comprises a workpiece position measuring equipment (22x´, 22x´´, 22x´´´) for sensing at least two reference positions (x´, x´´, x´´´) of the workpiece (2), and the control unit (15) is configured to operate the motion of the bar (14) from the reference position values (x´, x´´,x´´´) and other operational data. The invention also relates to a method for fluid jet cutting of a workpiece. The invention also relates to a computer program at a machine for fluid jet cutting of a workpiece. The invention also relates to a computer program product at a machine for fluid jet cutting of a workpiece.
Abstract:
Control apparatus (22) for a water jet process (24) has a first module (50) receiving signals from an acoustic emission sensor associated with the part being milled. The module (50) uses an algorithm (57) to evaluate the workpiece shape in real-time, as the process (24) continues, and provides corrections at (52), based on a model at (54). Initial instructions to the CNC machine (26) are from CAD/CAM software (30), based on a model (32) for the milling process. Periodically a second module (64) receives metrology signals (44) allowing the actual shape achieved to be compared with the required shape. If necessary, the algorithms (32, 54, 57) can be updated or modified.
Abstract:
Methods and systems for automating the control of fluid jet orientation parameters are provided. Example embodiments provide a Dynamic Waterjet Control System (401) (a "DWCS") to dynamically control the orientation of the jet relative to the material being cut as a function of speed and other process parameters. Orientation parameters include, for example, the x-y position of the jet along the cutting path, as well as three dimensional orientation parameters of the jet, such as standoff compensation values and taper and lead angles of the cutting head. In one embodiment, the DWCS (401) uses a set of predictive models to determine these orientation parameters. The DWCS (401) preferably comprises a motion program generator / kernel (402), a user interface (403), one or more replaceable orientation and process models, and a communications interface to a fluid jet apparatus controller. Optionally the DWCS also includes a CAD module (404) for designing the target piece.
Abstract:
A system for controlling motion of machine tools and industrial robots. From the specification of a part to be cut or a path to be followed by a machine tool or robot, the system calculates for each axis, for each incremental step along the path, a position command (69), a time delay between successive position commands, and, optionally, a force command (68) based on a prediction of predicted resistive forces. Calculations are specified for precisely controlling velocity, acceleration, and jerk. The generated data is stored in a memory device and subsequently directed to the machine tool or robot.
Abstract:
A method for sculpting art including preparing an artistic line drawing of interconnected lines having varying widths. The artistic line drawing is converted to a format suitable for computer numeric controls for guiding cutting means. The sculpture is cut out of a piece of material using cutting means suitable for defining holes around the artistic line drawing. The sculpture and mounting means are finished. The mounting means provides ma mechanism for spacing the sculpture from and attaching the sculpture to a structure. The mounting means are substantially invisible to a viewer when positioned on the structure. The sculpture having a combination of varying weight lines which appear to be drawn by a felt tipped pen.
Abstract:
A cutting device for cutting an object by working the material of the object. The cutting device comprises a cutting table (1), a portal robot (3) above the cutting table for moving a cutting head (2). The portal robot comprises a portal beam (4), a carriage (5) connected to the portal beam, a vertical transfer device (6), a cutting head for accomplishing vertical motion, and a turning device (7) for tilting the cutting head to form a splay in the object. Moreover, the device comprises a main control unit (10). The turning device (7) comprises a turning device frame (11) detachably connected to the vertical transfer device (6). The cutting head setting actuators (8, 9) are mounted on the frame (11). An auxiliary control device (12) is mounted in the turning device frame (11). The auxiliary control device (12) is connected via a data bus (13) to the main control unit (10). The auxiliary control device (12) contains turning device-specific calibration data for eliminating errors caused by inaccuracies of the transfer mechanism of the entire cutting device by using compensating corrections corresponding to the errors, so that the auxiliary control device is arranged to adjust the setting actuators (8, 9) on the basis of the calibration data and control data obtained from the main control unit to accurately adjust the angle of inclination of the cutting head (2).
Abstract:
An apparatus for supplying cutting liquid automatically according to optimal cutting liquid supply conditions, including variation with time during operation, predetermined for every tool of a machine tool. Optimal supply conditions of the cutting liquid supply (Q) are preset in a control means (5) for respective types of tools (1). The control means (5) comprises a main control section (5a) for mainly controlling the driving of a spindle unit (2) equipped with the tool (1), and an automatic supply control section (5b) for controlling the cutting liquid supply (Q) automatically, wherein the automatic supply control section (5b) delivers an input signal (Vin) corresponding to a supply condition (preset) to a variable frequency generating means (5c). The variable frequency generating means (5c) generates an output frequency signal (F) corresponding to the input signal (Vin) and delivers it to a cutting liquid supply means (3). The cutting liquid supply means (3) supplies a cutting liquid in amount (Q) proportional to the output frequency signal (F) to the tool (1) from a cutting liquid tank (3a) using a supply pump (3c).
Abstract:
Beschrieben wird eine Anordnung zum Zerteilen von großformatigen, Faserverbundmaterialanteile enthaltenden Sperrgut, insbesondere in Form von Rotorblätter für Windkraftanlagen, mit einer Zerteileinheit, der über eine Zuführeinrichtung das großformatige Sperrgut zuführbar ist. Die Erfindung zeichnet sich dadurch aus, dass die Zerteileinheit einen Handhabungsroboter sowie eine Sensoreinrichtung derart umfasst, so dass der Handhabungsroboter mit einer Einrichtung zur Durchführung eines Strahlschneidprozesses mit einer ein Schneidmedium austragenden Strahlschneiddüsenanordnung kombiniert ist, die innerhalb eines durch die Roboterkinematik des Handhabungsroboters zugänglichen Arbeitsraumes positionierbar ist, der von der Sensoreinrichtung zur Erzeugung ortsaufgelöster Sensorsignale erfassbar ist, dass eine Steuereinheit vorgesehen ist, die mit der Sensoreinrichtung in Datenverbindung steht und auf der Grundlage der ortaufgelösten Sensorsignale den Handhabungsroboter steuert,unddass zumindest die Zerteileinheit und die Steuereinheit bezüglich Größe, Gewicht und Anordnung derart ausgebildet sind, dass die Zerteileinheit und Steuereinheit auf einer straßenzugelassenen, mobilen Plattform transportierbar sind.