Abstract: A raster cutting apparatus and method for producing accurately formed, aspheric ophthalmic lenses having a good quality surface finish. The accurate form and good surface finish are obtained by using a substantially spherically shaped cutting tool having a large radius. The methods include utilizing a cutting path which provides substantially constant cutting-force, such as a constant surface-cutting-speed raster pattern.

Abstract: A method for controlling operations of a measuring machine is provided. The method includes the steps of: clearing faults when there are the faults occur in a measuring machine; sending a restart instruction via a control card to the measuring machine for controlling the movable arm to return to an initial position in relation to an X-axis, a Y-axis and a Z-axis directions; sending a move instruction comprising information of a final position to the control card; executing the move instruction; calculating a current position of the movable arm according to a count tracked by a raster ruler; determining whether the movable arm locates at the final position of the measuring machine according to the count; and controlling the movable arm to move along the measuring machine by executing a next move instruction, if the movable arm locates at the final position. A related system is also disclosed.

Abstract: A machine for machining a work piece with at least one revolving or rotating tool, having a ball screw, which is pivoted by a fix and a floating bearing whereas the machine has a device for measuring the length of the extension of the ball screw. Furthermore, a method is provided for measuring and compensation a thermal displacement comprising the steps of: detecting the length U of the axis of the ball screw, detecting the length I2 of the axis of the ball screw, calculating the difference ?l of the length I1 extended axis and the reference length I2 of the axis and compensating the difference value to the correct value.

Abstract: A tool selection method, for a machine tool, comprising the steps of identifying the maximum tip distance (D2) of a currently selected tool (141), a next designated tool (142) and an intermediate tool (143) disposed therebetween; moving a tool rest (10) in the +(plus)X-axis direction after a machining by the currently selected tool (141) is completed until the tip of the currently selected tool (141) is spaced from a workpiece (W) along the X-axis by a distance provided by adding a clearance distance (E) to a difference between the maximum tip distance (D2) and the tip distance (D3) of the currently selected tool (141); moving the tool rest (10) in the +(plus)Y-axis direction until the tip of the next designated tool (142) is aligned with the rotation center axis (12a) of the workpiece (W) in the X-axis direction; and moving the tool rest (10) in the ?(minus)X-axis direction.

Abstract: According to the invention, an initial trajectory (2) that is to be followed in a positionally guided manner is input into a computer (15), said initial trajectory (2) being described by an initial function (AF) such that one respective corresponding position (pA) is determined on the initial trajectory (2) by substituting a scalar trajectory parameter (s) into the initial function (AF). The scalar trajectory parameter (s) is different from time (t) while being characteristic of a distance (s) covered along the initial trajectory (2). The computer (15) filters the initial trajectory (2) with low-pass characteristics referring to the scalar trajectory parameter (s) as a function of the scalar trajectory parameter (s) and thus determines a rough function (GF) such that one respective corresponding position (pG) is determined on the rough trajectory (13) by substituting the scalar trajectory parameter (s) into the rough function (GF).

Abstract: A method of controlling the movement of a processing head of a machine tool includes monitoring the position of the processing head along a first coordinate direction, monitoring the movement of the processing head along a second coordinate direction different from the first coordinate direction, and limiting the acceleration or the change in acceleration of the processing head along the second coordinate direction to a value below a predetermined maximum value, wherein the predetermined maximum value depends on the position of the processing head along the first coordinate direction.

Abstract: There is provided a position ensuring system for oblique machining in a five-axis machine tool which, based on the inclination and the direction of an inclined hole to be machined, carries out measurement of an error in the pivot angle of a spindle head and an error in the rotation angle of a table before initiating machining of the hole, and can automatically correct the pivot angle of the spindle head and the rotation angle of the table upon machining of the hole, thereby precisely ensuring the position of the spindle head and the position of the table in the machining.

Abstract: A machine tool moves a driven member by use of a servomotor. A position control device controls the position of the driven member in accordance with full closed loop control. The position control device computes an integrated feedback value g in correspondence with a function F (VM, PM, Vm, Pm) in which four state amounts, motor speed VM, motor position PM, driven member speed Vm, and driven member position Pm are independent variables. The thrust instruction ?*, which is inputted to the servomotor, is compensated with the integrated feedback value g. The servomotor is thus optimally driven and controlled in accordance with full closed loop control.

Abstract: A cutting tool adjustment method includes lowering a cutting tool on a transparent Mylar to produce an indentation before an actual scribing operation; picking up the image of the indentation; using a numerical analysis method and a set formula to automatically calculate a correction angle and position so as to adjust the angle and position of the cutting tool subject to the calculation result; and repeating the calculation and adjustment procedures, if necessary.

Abstract: A scoring bridge includes a plurality of moveable mounted carriages. The carriages each have a rotor, and the bridge has a linear stator to move the carriages. The position of a carriage designated as a reference carriage is recorded as it moves past a motion detector. The position of each remaining carriages is recorded as they individually move past the detector. The difference between the position of a carriage and the position of the reference carriage is an offset that is added to the position reading of the carriage to accurately space the carriage form the reference carriage. Each of the carriages can have a scoring assembly that includes servomotor acting through a gear arrangement on a scoring wheel. The servomotor applies a constant load to the scoring wheel and adjusts the load for any positive or negative displacement of the scoring wheel from a reference position.

Abstract: A charged-particle beam system used to fabricate or inspect semiconductor devices comprises the charged-particle beam accurately brought into position on a workpiece. The system has a workpiece stage, a laser metrology system for measuring movement of the stage, a first calculation unit for calculating the difference between the amount of movement of the stage measured and a target amount of movement of the stage. The amount of movement of the stage produced between the instant when the difference is calculated and the instant when the beam deflection system is started is calculated. Signals indicative of the calculated amounts are supplied to the deflection system.

Abstract: A numerical control apparatus having tool cutting edge detecting unit for detecting a cutting edge position of a tool mounted on a tool rest, comprises detection signal determining unit for determining, as effective, only a detection signal that is first inputted from among a plurality of detection signals which are continuously inputted from the tool cutting edge detecting unit. A signal which is detected until a preset time is elapsed after a first signal is received when the tool comes into contact with the touch sensor, and/or until the tool moves a predetermined distance, is determined as erroneous detection by the detection signal determining unit, and the signal is disenabled.

Abstract: A quality control method for two-dimensional matrix codes on metallic workpieces, the codes being in the form of stamped marking dots is disclosed. The stamping process for the marking dots is carried out by a marking tool (17) with the aid of predetermined digital positional data. The corresponding image data is then recorded for analysis by an image processing device (22), exclusively at the locations that have been predetermined by the positional data, or additional image data that has been previously generated is also used for the analysis, to establish whether a correct marking dot with the required quality characteristics is present.

Abstract: Methods and systems for position sensing are disclosed. In one embodiment, a method includes measuring at least three discrete point positions associated with a first component by using at least one transmitter having a known position and orientation and in a line of sight with the three discrete point positions, the three discrete point positions having known distances relative to one another. The method computes a current position and orientation of the first component using data provided by the at least one transmitter and the three discrete point positions, along with position and orientation data from a last known location of the first component assuming that no sudden position changes since the first component has moved from the last known location. The first and second components may be a workpiece and a tool that performs a manufacturing operation on the workpiece.

Abstract: A method for machining workpieces by means of a multiaxial manipulator, such as an industrial robot, with a tool moved proportionally by a control unit of the manipulator and which can perform characteristic movements with several degrees of freedom is characterized in that the degrees of freedom of the tool are evaluated together with the degrees of freedom of axes of the manipulator in real time for moving a tool tip (TCP) in accordance with a predetermined, continuous machining path or a portionwise continuous machining geometry (step function) and for determining a movement of the manipulator. The invention also proposes a device suitable for performing the aforementioned method, in which the tool and a tool tip, during workpiece machining, are movement-controllable by the manipulator control unit. In this way it is possible to drastically reduce the overall machining time.

Abstract: A machine has a tool head which rotates on a C-axis (about the Z-axis) and an A-axis (about the X-axis). A tool length vector is multiplied by a matrix whereby a misalignment component ?s-H and the incline error (?s-H, ?s-H, ?s-H) of a spindle are corrected so that the tool length vector due to the misalignment of the spindle is obtained. The vector thus obtained is further multiplied by a transformation matrix that includes a rotation instruction ? for the A-axis and misalignments of the A-axis ?a-H (?a-H, ?a-H, ?a-H) to correct the misalignment of the A-axis so that the tool length vector as found when the A-axis has rotated by an equivalent of instruction ? is determined.

Abstract: A method and a system for programming an industrial robot to move relative to defined positions on an object. The system includes a geometrical model of the object, the real object, and an industrial robot. A plurality of measuring points are generated corresponding to different points on the surface of the real object expressed in a coordinate system associated with the robot. The system further includes a calibration module arranged to determine orientation and position of the geometrical model of the object relative to the coordinate system associated with the robot, a calculating module arranged to calculate the deviation between the measuring points and corresponding points on the geometrical model, and an adjusting module arranged to adjust the defined positions based on the calculated deviations.

Abstract: A work is installed on a table of a machine tool, and the coordinate system on the work is (X?, Y?, Z?). Each three points on respective three faces of the work, which are orthogonal to one another, A, B, C, D, E, F, G, H and I, are detected with a touch probe. From three points on the same plane, each of three formulas of planes which lies on the three points, respectively, are obtained. A position O? (XO, YO, ZO) of a point where the three plane intersect with one another is obtained. This position is a parallel translation error. From these three plane formulas, points on the X?, Y? and Z? axes each being distant from the position O? by the length L are obtained. Rotation matrices are obtained from the respective points, position O? (XO, YO, ZO), and L. Rotary direction errors are obtained using the rotation matrices. In this manner, a work location error which is composed of the three-dimensional parallel translation error and three-dimensional rotary direction errors is obtained.

Abstract: A thermal displacement correction method is provided, including the steps of presetting coordinate data for a fixed position of a workpiece on a table, finding an amount of displacement of the fixed position of the workpiece at a current cutting edge position based on the detected temperature, the coordinate data of the cutting edge position, and the coordinate data of the fixed position, and computing a difference in the coordinate data between the fixed position of the workpiece and the cutting edge position, finding an amount of displacement of the workpiece between its fixed position and the cutting edge position based on the detected temperature and the difference in the coordinate data between the fixed position and the cutting edge position, and computing a sum of each amount of displacement to define an estimated value and correcting thermal displacement using an NC unit based on the estimated value.

Abstract: A system and method for generating master and slave reference signals is disclosed, wherein at least one axis of the plurality of axes is a master section and at least one axis of the plurality of axes is a slave section, said slave section being a slave of said master section. The system and method generates a first reference signal and a second reference signal, wherein the second reference signal lags the first reference signal by a first delay period, and the processor provides the first reference signal to the slave section and the second reference signal to the master section. As a result, the slave section can lead the master section.

Abstract: A method and system can align a robot arm with a payload station. A probe and a contact detector may be positioned on the robot arm and three pins may be placed on the payload station. A controller may move the robot arm in a pattern over the payload station until contact may be made between the probe and one of the pins. A search about the contact location may be performed to obtain additional contacts. The search may be interrupted when contact is made between the probe and one of the pins. The position of the pin may be calculated from three such contacts on the spherical portion of the pin. The location of the probe at the time of contact may be stored and a localized search about the pin location may be performed. If the position of the pin cannot be resolved from three contacts, additional contacts may be made until a combination of three contacts does provide a solution.

Abstract: An apparatus for performing machining operations on an object includes a carriage, a movable head configurable with an operating attachment to perform the machining operations on the object, and a position determination system operable to determine the spatial relationship of the carriage and the object and provide a first signal representative thereof. The position determination system periodically determines the spatial relationship of the head to the object during machining operations on the object and provides a second signal representative thereof. The second signal is used to re-position the head to a desired position during the machining operations.

Abstract: A method and system for maximizing process capability in a progressive forming operation. The method compensates for deviations introduced by unformed components, and uses closed loop feedback to compensate for deviations introduced by forming tools. Fiducial features are detected on an incoming component, and a first compensation value is calculated from displacement of the fiducial features from an ideal forming location on the component. Component position with respect to a theoretical forming position is adjusted according to the first compensation value. Placement of a feature formed on the component at the adjusted position is detected and compared to the ideal forming location to obtain a difference value. A second compensation value is derived from a plurality of difference values. Forming positions for subsequent incoming components are adjusted with respect to the theoretical forming position according to first and second compensation values.

Abstract: A first stage and a second stage are disposed to face each other. A first object is fixed on the first stage. A first displacement sensor attached on the first stage is used to measure a distance extending from the first displacement sensor to a plane disposed in front of the first displacement sensor. A second object is fixed on the second stage. A second displacement sensor attached on the second stage is used to measure a distance extending from the second displacement sensor to a plane disposed in front of the second displacement sensor. A moving mechanism is provided to move one of the first stage and the second stage, with the movement of one stage being relative to the other stage.

Abstract: A multistage machining process includes a plurality of stations. Workpiece feature quality is predicted based on decomposition of the machining process into sources of variation, reticulation of the machining process into machining stations and error models that account for significant contributions to feature quality including from categorical sources of variation.

Abstract: A numerical controller capable of obviating the waste of a workpiece by machining such that a position deviation by learning control is converged and automatically performing storage of correction data and actual machining. A tool and the workpiece are moved to noninterfering positions. In a learning control interval from the issuance of a learning control start command to the issuance of a learning control end command, the input and output are turned on so that the learning control is performed to input the position deviation and create and output the correction data. Processing in the learning control interval that involves the learning control is repeatedly executed a set number of times by idling operations. The obtained data is automatically stored in the numerical controller, the tool and the workpiece are moved to interfering positions, and the position deviation is corrected based on the correction data, whereby actual machining is performed.

Abstract: There is provided a machining tool for machining a workpiece on a workpiece support in response to control signals. The machining tool includes a cutting tool configured to cut a surface of the workpiece. The machining tool also includes a first displacement mechanism and a second displacement mechanism. The first displacement mechanism arranged to displace the cutting tool relative to the workpiece in a first set of coordinates in response to the control signals. The second displacement mechanism supported by the first translation mechanism and arranged to displace the cutting tool relative to the workpiece in a second set of coordinates, the second displacement mechanism capable of a higher frequency response than the first displacement mechanism. The machining tool also includes a controller configured to receive the control signals and synchronize the displacement of the cutting tool due to the first displacement mechanism with the displacement of the cutting tool due to the second displacement mechanism.

Abstract: A method and apparatus for determining the minimum zone for an array of features with a true position tolerance. In one embodiment, a target function is defined according to a deviation value of each of at least two features from an array of features having a maximum deviation between an actual position and a nominal position. Once defined, the target function is minimized to determine a rotation parameter, a horizontal translation parameter and a vertical translation parameter that provide a minimum target function value as a minimum of the maximum deviation for the array of features. In one embodiment, an inspection report may be generated for the array of features, including at least the minimum, maximum deviation value, as well as the rotation parameter, the horizontal translation parameter and the vertical translation parameter that provide the minimum target function value. Other embodiments are described and claimed.

Abstract: A method for agent-based operation of a robotic device. In the method, at least one condition is detected in various locations of a room with a plurality of sensors. In a plurality of agents associated with respective areas of the room, the plurality of agents being configured to control at least one condition in the respective associated areas, sensed data is received from at least one of the plurality of sensors. In addition, it is determined whether the received sensed data are outside of respective predetermined ranges, and information related to the sensed data in response to the sensed data being outside of the predetermined ranges is transmitted to the robotic device. In the robotic device, the information received from one or more of the plurality of agents is processed to determine whether components of a cooling system are to be manipulated to vary a characteristic of cooling fluid supplied to the various locations of the room.

Abstract: The invention relates to a method for calibrating a grinding machine for sharpening bar blades by grinding at least two flanks and a top surface (K) of the bar blades, involving the following steps: producing a calibrating blade by sharpening a bar blade according to predetermined dimensions; measuring the dimensions of the calibrating blade, and; calibrating the machine with the aid of at least the measurement result. In order to produce a calibrating blade, the bar blade is, in at least two steps, ground on the flanks and on the top surface (K) in a complete calibrating grinding. The inventive method is advantageous in that the calibrating blade is ground under the same conditions as a production blade so that process-related influences, in particular, displacements associated with the grinding forces, can also be taken into consideration.

Abstract: The present invention comprises methods of machining a workpiece. In one embodiment, a method includes positioning a workpiece in a first position in a process station of a machine system, and forming at least one check feature on the workpiece. A position of the check feature is then sensed while the workpiece is positioned in the first position, and one or more machined features are formed on the workpiece relative to the check feature while the workpiece is positioned in the first position. The workpiece is then moved from the first position to a second position within the process station, and a position of the check feature is again sensed while the workpiece is positioned in the second position. One or more machined features are then formed on the workpiece relative to the check feature while the workpiece is positioned in the second position.

Abstract: A method of calibrating a gravure engraving machine includes the steps of providing an engraving signal to the engraving machine to cause production of a cell, measuring the volume of the cell, comparing the measured cell value to a predetermined cell volume and adjusting the engraving cell in accordance with the comparison.

Abstract: A method and apparatus for merging design intent of multiple designers with respect to a digital model of an object are described. In one embodiment, the method includes receiving data concerning a change to the digital model performed by a fist designer. The method further includes analyzing the data concerning the change performed by the first designer and data concerning a digital model version created by a second designer, and integrating the change performed by the first designer into the digital model version created by the second designer.

Abstract: Disclosed are techniques used in connection with determining a health indicator (HI) of a component, such as that of an aircraft component. The HI is determined using condition indicators (CIs) which parameterize characteristics about a component minimizing possibility of a false alarm. Different algorithms are disclosed which may be used in determining one or more CIs. The HI may be determined using a normalized CI value. Techniques are also described in connection with selecting particular CIs that provide for maximizing separation between HI classifications. Given a particular HI at a point in time for a component, techniques are described for predicting a future state or health of the component using the Kalmán filter. Techniques are described for estimating data values as an alternative to performing data acquisitions, as may be used when there is no pre-existing data.

Abstract: A control system of a stage of a microscope includes: a stage transfer unit for transferring the stage for loading a sample perpendicular to an optical axis of the microscope; a transfer command acquisition unit for obtaining command information for a transfer of the stage; a stop position direction storage unit for storing stop position direction information which is information generated according to the command information obtained from the transfer command acquisition unit, and the information about a position and direction when an operation of the stage transfer unit is stopped; and a stage transfer control unit for controlling an operation of stage transfer unit according to the stop position direction information stored in the stop position direction storage unit.

Abstract: A method for an industrial robot to increase accuracy in movements of the robot. A first path is formed by bringing a tool supported by the robot to adopt a plurality of generated positions. A plurality of observed positions of the tool moving along the first path are determined. A second path is formed of the determined tool positions. A correction is determined by a path deviation between geometrically determined positions in the first path and the second path.

Abstract: A method of determining springback in metal forming with a fluid cell press through establishing a computational formulation to determine bend angle and compensated die radius based on factors of geometry of the part being formed, material properties of the sheet material and the forming process, and computing additional iterations of springback until a specific tolerance between the formed part angle and the desired part angle are reached.

Abstract: In a machining method and a machining apparatus, prior to machining, an NC control unit makes an X-axis drive unit move a table based on examination conditions specified in advance. Thus, the NC control unit obtains a stabilization time required from the command-reach time of a poisoning command and till the stabilization of position response of the table within a predetermined allowable range. Likewise, for moving a drill in a Y-axis direction, the NC control unit obtains a stabilization time required till the stabilization of position response within a predetermined allowable range. At the time of machining, the drill is moved in a Z-axis direction to cut into a printed wiring board as soon as the obtained stabilization time has passed.

Abstract: A threading control method and apparatus therefor is provided, in which, when carrying out thread-cut machining operations several times at one position, synchronized with main-spindle rotation and controlling movement of a threading spindle, deviations in thread grooves are prevented without correcting programmed commands, machining accuracy is improved, and tool life extended. When a main-spindle single-rotation reference signal and a main-spindle position counter are input to the numerical control apparatus, the present main-spindle position is computed by a main-spindle position computing means 103, the difference between the main-spindle single-rotation reference signal and control cycles is obtained, as a correction amount 108, from the computed main-spindle position, by a main-spindle position-correcting means 104 and a correction is done.

Abstract: A computer controlled cup forming machine is provided. The computer controlled cup forming machine has a main motor, a main controller, and a plurality of workstations having individual motors electrically connected to the main motor and the main controller. The main controller develops electrical signals of a drive or motion profile that are sent to the individual motors, and the main motor sends additional electrical signals to the individual motors to initiate the drive profiles at the individual motors. The main controller also has an input station to quantitatively control each of the individual motors.

Abstract: A process and device for computer-aided adaptation of an application program for a machine tool is described. A sequence of control commands for feed axes of the machine tool defines a contour to be traveled by a tool relative to a workpiece. Based on the sequence of control commands, a computer determines sequential instructions for a round axle of the machine tool to track the contour and determines if, and possibly at which locations, the contour has angular or curvature discontinuities. When such angular or curvature discontinuities occur, the computer determines sequential instructions, so that the round axle begins to start accelerating before the angle or curvature discontinuities occurs, and the acceleration of the round axle terminates only after the angle or curvature discontinuity has ended.

Abstract: A method for calibration of grinding and/or erosion machines assumes an initial calibration process and corresponding re-calibration processes. Calibration of the machine is performed with a reference piece and a reference tracer in an initial calibration process. Grinding tests follow the first tracing process from all directions during which tests deviations are determined and made ineffective with the iterative procedure. The machine-internal measuring system is calibrated immediately after performing the machining tests and thereby immediately after the initial referencing of the machining apparatus whereby the machine tracer and a test piece is traced from all coordinate directions and the resulting position values are stored. Subsequent re-calibrations supply measured values, which are compared to the stored values whereby correction values are determined then from the deviations for additional machining of workpieces.

Abstract: A method of creating a mathematical model which is employed in the determination of at least one work location in a multi-layered laminated circuit panel. The mathematical model for modifying drill data takes into consideration translational and rotational compensations caused by the encountered stretching or shrinking of the multi-layered panel subsequent to pressing or due to thermally processing, whereby the mathematical model may be utilized to modify drill data in order to accurately predict hole or via locations.

Abstract: In a method for engraving printing cylinders in an electronic engraving machine, printing densities are matched in individual engraving lanes by engraving cups in the printing lanes with which the prescribed characteristic rated printing densities are to be achieved. The actual printing densities are identified by measurement after the printing. A corrected lane calibration is derived for the respective engraving lane from deviations between the rated printing densities and the actual printing densities. The allocated corrected lane calibration is applied in the engraving lanes.

Abstract: In response to a learning control start command from an external apparatus, an input switch for inputting a position deviation to learning control means and an output switch for outputting correction data from the learning control means are turned on, respectively, so that a position deviation is captured for each period. The position deviation is added to correction data fetched from a learning memory, and the result is stored as correction data in the learning memory. On the other hand, a value obtained by compensating the correction data fetched from the learning memory with a dynamic characteristic compensation element is added to the position deviation, and the result is inputted to a position control section. When a learning control end command is issued after the termination of a command pattern for an identical shape, the input switch and output switch are turned off, respectively.

Abstract: A machine having X- and Y-axis linear moving axes and a pivot axis B for rotationally pivoting a pivot member having a tool arranged at a distal end thereof about an axis parallel to a Z axis is controlled. A moving command obtained by a command program commanded by a position expressed by X, Y, and Z in a three-dimensional orthogonal coordinate system is subjected to an interpolation process to calculate amounts of interpolation movement (?X, ?Y, and ?Z) of the respective orthogonal axes. An amount of rotation ?? of the pivot axis required for moving the tool by the amount of movement ?Y in the Y-axis direction is calculated. An amount of correction movement ?x for canceling the movement in the X-axis direction caused by the rotation ?? of the pivot axis B is calculated. Values (?X+?x), ??, and ?Z are outputted to the X axis, the pivot axis B, and the Z axis, respectively.

Abstract: A system and method for specifying and satisfying move constraints when performing a motion control sequence. One or more motion control operations may be included in a sequence in response to user input. User input specifying one or more move constraints for a first motion control operation in the sequence may be received to a graphical user interface. When the motion control sequence is subsequently performed, the first motion control operation may be performed in such a way that the one or more specified move constraints are satisfied. The specified move constraints preferably do not cause the trajectory of the first motion control operation to be altered.

Abstract: A method for manufacturing a ring (i.e. class, championship, or affiliation) begins by receiving order data specifying a series of personalization elements, such as the addition of text and icon designs. A geometric model for each personalization item is constructed. To assemble text panels, the operating system provides font geometry for a desired TrueType font. Then a set of splines are created from the font geometry and are then tessellated to generate polyline sets of data, which are then spaced and mapped between two boundary curves. The personalization elements are then projected onto one of the model's 3D surfaces. A set of machining instructions for a milling machine is generated by obtaining a set of machining pattern strategies, generating a set of curves, projecting the toolpath onto the surface of the ring to calculate the 3D toolpath, and rotating it to a desired angle.

Abstract: There are provided a positioning control method and a positioning control device, which enables high speed positioning with low power consumption without repeating two or more acceleration and deceleration operations during travel from an original position to a target position. There is also provided an electronic component mounting apparatus, which enables high speed positioning with low power consumption and enables mounting of electronic components in a short period of time. When a movable body is moved from the original position to the target position, there is set an operational passing position for avoiding a passing avoidance region, and driving of a drive unit having a smaller travel distance from the original position to a coordinate of the operational passing position is started later than driving start timing of a drive unit having a longer travel distance, from the original position to another coordinate of the operational passing position, by a specified period of time.

Abstract: A controller that eliminates an error caused by acceleration/deceleration control, and controls the velocity of drive axes which is not represented by a rectangular coordinate system such that maximum allowable values of velocity, acceleration, and jerk of the drive axes are not exceeded. A program is analyzed in a command analysis section, and an interpolated position on a motion path in the rectangular coordinate system is determined in a first interpolation section, and then converted by means of a transformation section into drive axes' positions not in the rectangular coordinate system. In a tangential acceleration calculating section, a tangential acceleration is determined. In a velocity limit calculating section, a velocity limit at the time of each position being reached is determined which does not exceed maximum allowable values of velocity, acceleration, and jerk of the drive axes.