Abstract: The invention relates to a method for introducing a balancing mark into the compressor wheel of a turbocharger. According to the method, a milling tool is firstly moved in a first direction in order to introduce a recess into the compressor wheel, and the milling tool located in the recess then runs out in a second direction in order to convert the recess into a pear segment-shaped balancing mark. The invention furthermore relates to a turbocharger which comprises a compressor wheel that has one or more pear segment-shaped balancing marks.

Abstract: A workpiece machining method that machines a workpiece surface by moving a rotating tool, which has a cutting blade for interrupted cutting of the workpiece surface, relative to the workpiece comprises: a first process of determining the pattern of arrangement of multiple cavities on the surface of the workpiece formed after cutting by the cutting blade; and a second process of determining the tool path of the rotating tool so that the multiple cavities are disposed on the surface of the workpiece according to the pattern of arrangement determined in the first process.

Abstract: In a machine tool having a rotary shaft for use in rotating a tool or a workpiece, a plurality of stable rotation speeds at which the chatter vibrations are expected to be suppressed, and at least one switching rotation speed across which a dynamic characteristic of a rotary shaft system changes are stored. The plurality of stable rotation speeds may be determined from chatter vibrations detected using a vibration detection unit. Optimum rotation speed that is a rotation speed to which a rotation speed of the rotary shaft is changeable without crossing the switching rotation speed is selected from the plurality of stable rotation speeds, and the rotation speed of the rotary shaft is changed to the optimum rotation speed. Thus, chatter vibrations generated during rotation of the rotary shaft can be suppressed effectively.

Abstract: A machine tool having a motor-driven machine spindle which can be rotated about a spindle axis. The machine spindle has a tool holder arranged at the face. A tool is exchangeably arranged on the machine spindle. The tool has a coupling element which is compatible with the tool holder of the machine spindle. The coupling element has a rear surface pointing toward the machine spindle. The machine tool has at least one galvanic contact point for the electric current or data transmission, the point being arranged between the machine spindle and the tool and rotating together with the machine spindle. The galvanic contact point has a contact element which is arranged at the face of the tool holder on the spindle side, and a contact element which is arranged on the rear surface of the coupling element on the tool side.

Abstract: A milling machine has a base, a work platform mounted movably on the base, and a ruler mounted on the work platform. The work platform is movable relative to a base axis. The thermal compensation system includes a sensor and a control unit. The sensor is configured to be mounted on the base for sensing a position of each of the work platform and the ruler relative to the base axis. The control unit is coupled to the sensor, and determines a work platform displacement and a ruler displacement according to the positions sensed by the sensor. The control unit further calculates a compensation value based on the work platform displacement and the ruler displacement. The control unit is configured to correct the position of the work platform relative to the base axis according to the compensation value.

Abstract: Provided is a tool tight-contact-state detector for a machine tool which is capable of accurately and stably detecting whether or not a tool or a tool holder having the tool attached thereto is mounted to a main spindle in tight contact therewith. While rotation of a main spindle (13) is stopped, hydraulic pressure is supplied from a hydraulic pressure supply unit (28) to a cylinder section (20) so as to bring a piston member (21) to into contact with a main spindle head (11) and the main spindle (13) against a biasing force from an O-ring (22). Air is thereby allowed to be supplied to air ejection holes (27a, 27b, 27c), which are formed in a forward end face (13a) of the main spindle (13), from the main spindle head (11) side through the piston member (21).

Abstract: A cutting plotter includes a medium supporter, a first guide rail, a second guide rail, a carriage, a work tool, a working controller, and a second direction displacement detector. The second direction displacement detector is configured to measure a second guide rail displacement amount. The second guide rail displacement amount indicates a magnitude of displacement of a moving path of the carriage from a predetermined moving path with respect to the second guide rail in a direction perpendicular to a second direction when the carriage is moved in the second direction along the second guide rail. The working controller is configured to execute a control in which a movement control of the second guide rail on the first guide rail is added so that the second guide rail displacement amount is corrected in a movement control of the carriage on the second guide rail.

Abstract: By controlling an amount of preload applied to a rolling bearing that supports a spindle in accordance with the change of state of the spindle in actual machining, the rotation of the spindle is controlled in an optimal state, and the service life of the bearing is extended while the required stiffness of the spindle is ensured. When a corrected preload amount falls outside a range of a preload as a controllable region, the corrected preload amount is corrected so as to fall within the range of the preload. That is, an actually controlled preload is regulated to fall within the preset range of preload. Therefore, it is possible to ensure the stiffness of the rolling bearing or prevent heating and excessive increase in contact pressure of the rolling bearing.

Abstract: A minimum five-axis machine tool (11) has first to third linear feed axes orthogonal to each other as well as first and second rotational feed axes orthogonal to each other, wherein a rotational axis line of the first rotational feed axis C is parallel to the first linear feed axis Z. While a tool T and a work W are moved relatively through the second and third linear feed axes X, Y to perform machining of the work W by means of the tool T, the machine tool controls the first rotational feed axis C such that a rotational axis line of the second rotational feed axis A is perpendicular to the direction of relative movement of the perpendicular to the direction of relative movement of the tool T to the work W, and controls a power supplied to a motor for the second rotational feed axis A when a torque around the second rotational feed axis A exceeds a specified threshold.

Abstract: A plunge milling method includes: a) the area of material that is to be removed is enclosed by a plurality of milling paths, each milling path defining end positions of a milling head during the formation of plunge milling bores; b) to each milling path there is allocated a guide curve for the tool axis, each guide curve defining initial positions of the milling head during the formation of plunge milling bores; c) during the formation of plunge milling bores, the tool axis is oriented, as a function of a milling path and the respective guide curve, so that there is no danger of collision of the milling tool with a contour formed by plunge milling; d) for each milling path, bore axes for plunge milling bores are determined as a function of the respective guide curve, corresponding to a prespecified overlap of milling bores formed along the milling paths.

Abstract: A milling machine has a carriage, a main spindle seat extending along an axis, and a motor operable to drive displacement of the main spindle seat relative to the carriage along the axis. A deflection correction system includes a control unit, a displacement sensor, at least one pressure cylinder, and a pressure sensor. The pressure cylinder includes a cylinder body, and a control rod extended retractably into the cylinder body. The control unit is configured to determine a pressure range as a function of displacement detected by the displacement sensor, and to maintain fluid pressure in the pressure cylinder within a pressure range, thereby controlling the control rod via the cylinder body to position the second end portion of the main spindle seat relative to the axis.

Abstract: A relatively inexpensive and accurate method for micro scale tool touch-off and remaining tool life estimation using advanced methods of tool-workpiece conductivity monitoring. Part registration is based on a conductive circuit detection technique that utilizes an analog DC voltage. A tool life estimation system is provided, and accomplished through the combined application of hardware signal filtering and advanced signal processing techniques implemented on a digital signal processing unit.

Abstract: A control method for a tool machine is provided. The machine tool includes adjustment devices which are used to produce relative displacement between a machining head and a work piece. The adjustment movements are detected by sensors associated with the adjustment devices. A value for the relative displacement from the machining head to the work piece is determined from the signals of the sensors associated with the adjustment devices. The adjustment devices are controlled according to the value of relative displacement in order to produce predetermined adjustment movements. State variables which describe relative displacement between the machining head and work pieces are detected in at least one additional sensor. The state variables are taken into account when the value for the relative displacement is determined.

Abstract: The invention refers to a working machine with a machining tool which can be set in a spindle head of a working spindle. A monitoring unit is provided which monitors the shape of the spindle head.

Abstract: The invention relates to the transmission of power and/or data from/to a stationary part of a machine tool 200 to/from an accessory 100 mounted in the spindle 210 of the machine tool 200. A first electrical link or interface 1a,1b,1c,1d provides electrical communication between the stationary part 200 and the spindle 210, and a second electrical link or interface 3 is provided electrically connected to the first electrical link at the accessory mounting area 230. The second link 3 is in the form of electrical contacts. The invention extends to an accessory shank 360 for mounting to the spindle 210 of the machine tool, and also to an accessory 100 e.g. in the form of a measurement probe, connected to the said shank 360.

Abstract: Method and system for producing holes of various dimensions and configurations in a workpiece (42) using a portable orbital drilling machine (44), wherein said workpiece has attached thereto a template (10) with preformed guide holes (12-40) located in a pattern corresponding to the positions of the holes to be formed in the workpiece. Each guide hole (12-40) is provided with a readable information carrier (12i-40i) containing an identification of the respective guide hole. When fixating the drilling machine (44) in a guide hole, the latter is identified by a hole database (48) by sensing the respective information carrier. A control unit (50) associated with the hole database (48) controls the drilling machine (44) to perform a relevant hole-cutting process in the workpiece.

Abstract: A method and a device for tuning and control of industrial processes having varying material flow rate. An adder is configured to add excitation signals to the controller output signal. A measurement system is configured to measure a property in response to the excitation signals. A model based tuning unit is adapted to estimate the value of at least one parameter with unknown value of a process model structure describing the effect of varying material flow rate, based on the measurements of the property and the output signal from the controller, and to calculate a model that describes the dynamics from controller output to controller input based on the estimated value of the parameter, and to perform model based tuning of the controller based on the model that describes the dynamics from controller output to controller input.

Abstract: In a milling method for producing a structural component from a raw material by chip-cutting, a milling tool is moved along at least one defined tool path for the milling. In addition to the at least one tool path, at least one collision contour is also defined. The position or orientation of the milling tool relative to the collision contour(s) is monitored. The position or orientation of the milling tool is changed and/or an error message is generated if at least one of the collision contours is damaged, i.e. intersected, by the milling tool.

Abstract: The transmission of power and/or data from/to a stationary part of a machine tool to/from an accessory mounted in the spindle of the machine tool. A first electrical link or interface provides electrical communication between the stationary part and the spindle, and a second electrical link or interface is provided electrically connected to the first electrical link at the accessory mounting area. The second link is in the form of electrical contacts. An accessory shank for mounting to the spindle of the machine tool, and also to an accessory e.g. in the form of a measurement probe, connected to the said shank.

Abstract: The invention relates to a method for producing dentures by milling a workpiece. The inventive method is characterized in that in the event of a change in the load on the workpiece or on the milling tool, or on the workpiece and on the milling tool, determined before the milling begins and occurring during the milling, the relative speed between the milling tool and the workplace is varied without using a regulation technique.

Abstract: The invention relates to the transmission of power and/or data from/to a stationary part of a machine tool 200 to/from an accessory 100 mounted in the spindle 210 of the machine tool 200. A first electrical link or interface 1a,1b,1c,1d provides electrical communication between the stationary part 200 and the spindle 210, and a second electrical link or interface 3 is provided electrically connected to the first electrical link at the accessory mounting area 230. The second link 3 is in the form of electrical contacts. The invention extends to an accessory shank 360 for mounting to the spindle 210 of the machine tool, and also to an accessory 100 e.g. in the form of a measurement probe, connected to the said shank 360.

Abstract: A method of controlling a relative movement of a cutting blade and a workpiece which are moved relative to each other by a movement device in an operation with a machine tool. The method includes a step of bringing the cutting blade and an object into contact with each other, by moving at least one of the cutting blade and the object toward each other by the movement device, and a step of controlling the relative movement on the basis of a relative position of the cutting blade and the object which is detected by the movement device upon the contact of the cutting blade and the object with each other.

Abstract: A toolhead assembly for a CNC machine displaceable along orthogonal x, y and z-axes generally consisting of a support assembly, a tool carrier supported on the support assembly having a rotatable tool axis and being displaceable relative to the support assembly between a first position wherein the tool axis is aligned with the z-axis and a second position wherein the tool axis is misaligned with the z-axis, structure for yieldably biasing the tool carrier assembly into the first position and structure responsive to a displacement of the tool carrier assembly to the second position for breaking an electrical grounding circuit of a controller operatively connected to the machine.

Abstract: A device for detecting thermally caused linear expansions of a machine element, wherein the device includes a temperature sensor placed along an expansion direction. The temperature sensor includes a first metallic conductor having an electrical resistance that is proportional to an average temperature of an area to be monitored and a plurality of trimmer tracks in the form of further metallic conductors placed next to the first metallic conductor. The temperature sensor further includes electrical connections selectively interconnecting the plurality of trimmer tracks with the first metallic conductor and wherein the plurality of the trimmer tracks have an effective electrical resistance that is proportional to the average temperature of the area to be monitored.

Abstract: A machine tool (1) for the at least partial machining, contour-dependent cutting or milling of a component from a plate-shaped workpiece (2), for example a wood plate, is provided, and includes a suction device used as a clamping device for engaging on the back side or lower side of the workpiece (2). A second clamping device including at least one hold-down device (6) that is used to apply pressure to the side of the workpiece (2) facing away from the suction device (3) and (4) is provided. The hold-down device (6) has on its contact region that applies pressure to the workpiece (2) at least one or two spaced-apart pressure rollers (7), and is displaceable under pressure relative to the workpiece (2) transversely to the axis of the pressure roller(s) (7). The displacement is synchronous with a tool (8) used for the machining of workpiece (2), which tool can preferably be situated between the two spaced-apart pressure rollers (7).

Abstract: A dynamical instrument for machining comprising a sensor responsive to a non-rotating part of a machine proximate the tool of the machine for outputting a vibration signal, and a processor responsive to the sensor output configured to calculate a plurality of signature quantities which characterize the dynamics of the vibration signal and correlate the signature quantities to detect parameters associated with the operation of the machine.

Abstract: A method of controlling a relative movement of a cutting blade and a workpiece which are moved relative to each other by a movement device in an operation with a machine tool. The method includes a step of bringing the cutting blade and an object into contact with each other, by moving at least one of the cutting blade and the object toward each other by the movement device, and a step of controlling the relative movement on the basis of a relative position of the cutting blade and the object which is detected by the movement device upon the contact of the cutting blade and the object with each other.

Abstract: The apparatus and method includes a spindle portion which holds a cutting tool. The drill is initially moved forwardly of a pressure foot portion of the apparatus. The pressure foot portion is then moved forwardly along with the spindle and drill to clamp the mechanical assembly. A thrust control arrangement produces a reduction of the thrust on the tool holder such that as the assembly is being clamped, the tool initially contacts the workpiece and then remains stationary while the pressure foot moves forward to complete clamp-up. The positions of the tip of the tool and the surface of the workpiece are recorded and compensation is then made to the apex position of the spindle stroke, using a previously determined reference position of the tool relative to the workpiece.

Abstract: A spindle device equipped with a combined externally pressurized gas-magnetic bearing assembly, and a machining apparatus utilizing the spindle device. The spindle device is capable of accomplishing a high speed rotation with high rotational precision and includes a main shaft (4) rotatably supported by the combined bearing assembly (6 to 9), an electric current detecting device (15 to 18) disposed in a spindle controller (3) for detecting a current supplied to electromagnets of the combined bearing assembly (6 to 9). Also provided is a machining status determining device (19) for determining the machining status in reference to the current detected by the current detecting device (15 to 18). The machining status may be an indication of the extent to which a machining tool is impaired.

Abstract: In a finishing apparatus, a plurality of works are retained at distances from each other in a direction of an X-axis. A single spindle is disposed on a table movable in the direction of the X-axis, the spindle has an axis parallel to an axis of each of bores to be finished, and is capable of being advanced and retracted axially. A measuring device is provided that measures an inside diameter of each finished bore and which is advanced and retracted independently from the spindle in a direction along the axis of each finished bore. A combination tool is mounted at a tip end of the spindle and finishes an inner surface of any of the bores to be finished, even if the position of insertion of the combination tool into each of the bores is changed.

Abstract: A tool tip conductivity sensor and method for determining when a tool tip of a machine contacts a workpiece. The sensor has at least two external connectors, one to the workpiece and the other to the machine. When the tool tip grazes the workpiece surface an electrical circuit is completed. The signal from the contacts is supplied to a trigger circuit, which preferably compares the signal to a DC offset. The trigger signal from the trigger circuit is supplied to a notification circuit, which provides a signal indicating contact. Preferably, the notification circuit receives the trigger signal and provides a steady “On” condition for an LED or activates an audible device, such as a piezoelectric transducer. The notification circuit can also provide a reference for further machining to a controller of the machine using the sensor as a contact probe.

Abstract: A machine is provided for stripping the ground wall insulation from a stator bar quickly and in such a manner that the copper strands will not be damaged. The apparatus of the invention includes a power driven cutting tool for milling or routing the insulation from a portion of the insulated bar, a sensing device for detecting the location of the copper strands and a height adjustment assembly for determining a disposition of the bar with respect to the cutting tool. In an exemplary embodiment, the height adjustment assembly is adjusted in accordance with the location of the copper strands as detected by the sensing device to substantially prevent the cutting tool from making damaging contact with the copper strands.

Abstract: A brake apparatus for a moving apparatus driven by a linear motor, to support a headstock. The brake apparatus includes an air cylinder disposed parallel with a travelling direction, a compressor to supply fluid under pressure to the air cylinder, a 2-port solenoid valve disposed on a fluid path connecting from the compressor to the air cylinder, and a controlling device that outputs a signal to open the 2-port solenoid valve during normal operation of the linear motor and controls the 2-port solenoid valve to close when the power supply to the linear motor is interrupted or the linear motor is stopped in an emergency.

Abstract: A working machine includes a cutting machine, a tool holder which can be installed to or removed from the spindle of the cutting machine, a transmission and reception mechanism installed in the tool holder, and a controller for performing radio communication with the transmission and reception mechanism via electromagnetic waves. An antenna configuring the transmission and reception mechanism is installed in a radio wave transparent material and a cover material at a distance from the circumference of the tool holder for radio communication between the tool holder and the external controller.

Abstract: A shock-absorbing device is intended to be mounted on a spindle headstock of a machine tool. The spindle headstock includes a motor driven spindle unit connected to an upright by a support. The shock-absorbing device comprises a yieldable structure connected on one side to the spindle unit and on the other side to the support, and is adapted to yield upon an accidental collision of the spindle headstock against a workpiece. A collision sensor or is associated with the yieldable structure for detecting the yielding thereof resulting from an accidental collision of the spindle headstock with a workpiece, and for transmitting in response thereto a signal to a machine tool control unit.

Abstract: The device includes an operating head movable by a control unit with respect to a board for machining; the operating head includes a board holder device and an electric motor for a tool spindle; the rotor of the motor rotates with respect to the stator on air-cushion supports, and the stator slides axially on a further air-cushion support and is insulated with respect to the operating head; a signal generator senses the capacitance between the rotor and the stator, and generates an electric signal upon the tool on the spindle contacting the upper surface of the board; and the signal is used to define a reference dimension relative to the upper surface, and to so condition the control unit as to feed the tool to a predetermined depth as of the upper surface.

Abstract: A machining method is provided for use with a smart card of the type having at least one conducting winding at some distance from the opposed faces of the card, with the end portions of the winding forming electrical connection pads for an electronic chip. According to the method, an electric potential is generated in the winding. The milling tool is made to orthogonally penetrate the card in a region of at least one of the pads, and the electric potential of the milling tool is concomitantly monitored to detect a variation in electric potential that identifies a reference position of the milling tool with respect to the card and pad. The penetration of the milling tool is continued for a predetermined travel from the reference position so as to reach a machining position. In one preferred method, the milling tool is moved parallel to the card at the depth of the machining position in order to form a cavity in the smart card. A machining apparatus for machining a cavity in a smart card is also provided.

Abstract: The device includes an operating head movable by a control unit with respect to a board for machining; the operating head includes a board holder device and an electric motor for a tool spindle; the rotor of the motor rotates with respect to the stator on air-cushion supports, and the stator slides axially on a further air-cushion support and is insulated with respect to the operating head; a signal generator senses the capacitance between the rotor and the stator, and generates an electric signal upon the tool on the spindle contacting the upper surface of the board; and the signal is used to define a reference dimension relative to the upper surface, and to so condition the control unit as to feed the tool to a predetermined depth as of the upper surface.

Abstract: A method and apparatus for determining a workpiece's surface position. One embodiment of the invention includes two conductive bodies that are insulated from each other. During a surface position determining operation, one of these bodies has a first potential, while the other body has a second potential. These bodies are then moved towards a conductive surface of the workpiece, until both of these bodies are electrically detected to contact the surface. Finally, the distance that one of these bodies traverses is used to identify the position of the surface of the workpiece.

Abstract: A machine tool for machining panels, plates and discs, is fitted with a number of workpiece clamping devices (10) that move along a work bench (20) of the machine tool. The machine tool has sensors (8) designed to detect the position of the clamping devices (10), and a unit (2) built into the operating head (15) of the machine tool, which engages the clamping devices (10) to moves them to preset positions on the bench (20) by one or more relative movements between the head (15) and the bench (20).

Abstract: A feedrate and travelling distance before the feed orientation of a feed drive axis is obtained by analyzing NC programs when carrying out a machining action, and the lost motion correcting quantity corresponding to said feedrate and travelling distance is calculated by using the relationship obtained in advance by experiments. Furthermore, the lost motion correcting quantity obtained by calculations is overlapped onto the instruction value to a servo motor which drives the feed drive axis, when the feed orientation of said feed drive axis is reversed.

Abstract: A machine tool comprises a spindle unit for raising a spindle on which a cutting tool is mounted by a magnetic force and supporting the spindle. The spindle unit carries out feedback control so as to maintain the spindle in its target position in the radial direction. A feeder for feeding the cutting tool to a work comprises a servo motor for moving the spindle unit relatively to the work. A feeding controller for controlling a feeding operation of the feeder controls the speed of rotation of the servo motor on the basis of feed speed data stored in a memory. The feed speed data comprises a first feed speed corresponding to the time when the cutting tool cuts through an end surface of the work crossing the direction of feeding and a second feed speed corresponding to the time of normal working and higher than the first feed speed.

Abstract: The disclosed press processing method and device can chamfer work, for instance by pressing a chamfering tool against the work at a predetermined contact pressure, without detecting the pressing force of the chamfering tool against the work or without feedbacking the detected pressing force to a robot controller. The press processing device used being mounted on automatic mechanical processing means such a multi-joint robot, comprises: a processing section (e.g., grinder) (11) held by a support body (12) in such a way that pressure caused by a dead load of the processing section is not applied to a processing portion (e.g. blade) (11d) of the processing section (11); a constant torque applying section (e.g., servomotor) (16) for pivoting the processing section in a predetermined direction at a constant torque; and a mounting member (20) for mounting the constant torque applying section to a robot arm (R).

Abstract: A machine alignment compensation actuator system is disclosed. The system is designed to selectively orient the tool head of a machine tool to maintain the tool along a desirable axis of alignment. The system includes a framework and a machine slide assembly configured to hold the tool. An actuator assembly having a plurality of actuators is disposed between the machine slide assembly and the framework. Each actuator is disposed at a unique location to permit selective reorientation of the machine slide assembly and tool with respect to the framework.

Abstract: A temperature measuring device measures the temperature of a main shaft as a numerical value based on the outputs from temperature sensors. A temperature recorder stores the value as time series data. When the heat-induced displacement of the main shaft is in a stationary state, a heat-induced displacement estimate computing unit estimates the displacement based on the instantaneous temperature measurement. When the displacement is in a transient state due to a change in the rotation speed of the main shaft, the computing unit estimates the heat-induced displacement of the main shaft by multiplying the elapsed time from the beginning of the transient state by the ratio of the heat-induced displacement time constant to the temperature time constant and estimating the heat-induced displacement based on the time series data of the time preceding the current time by the result of the multiplication.

Abstract: A machine tool for machining panels, plates and discs, is fitted with a number of workpiece clamping devices (10) that move along a work bench (20) of the machine tool. The machine tool has sensors (8) designed to detect the position of the clamping devices (10), and a unit (2) built into the operating head (15) of the machine tool, which engages the clamping devices (10) to move them to preset positions on the bench (20) by one or more relative movements between the head (15) and the bench (20).

Abstract: A method for machining is disclosed wherein cutting edges of a cutting tool are oriented at a negative rake of from approximately 0 degrees to -10 degrees. The tool is rotated at a speed of between approximately 15,000 rpm to approximately 30,000 rpm, after which the cutting edges are engaged with a workpiece. Thereafter, power applied to the cutting tool is varied so as to maintain constant rotational speed of the cutting tool while the cutting edges are engaged with the workpiece. During the machining process, vibrations are absorbed by a hydraulic cushion, allowing the tool to rotate without vibration, with heat generated by the machining process being confined mainly to the removed material.

Abstract: An axially compliant tool assembly for a programmable position controller is disclosed. Various construction details have been developed which provide a responsive means to make the tool axially compliant to deviations between the programmed path of the tool and the surface being worked upon by the tool. In one particular embodiment, the axially compliant means includes a base, a sleeve axially movable relative to the base, a tool disposed on an internally splined shaft, and a radial bearing disposed between the shaft and the sleeve. The sleeve includes a flange which defines in part two sealed cavities wherein the differential pressure between the two sealed cavities provides a working force for the tool and wherein the flange may move axially within the limits of the sealed cavities.

Abstract: The invention relates to a sensor-system for metal workpieces, especially cast components (casting cleansing), and a cutting sensor for its implementation, and is intended to improve deburring quality rationally and effectively. To this end, relatively coarse burrs are cut off to a predetermined height and the remaining burrs and also the relatively small ones are removed by sensor control in a single pass by a combined tool having sensor cutter and a burr pre-cutter.

Abstract: Machining apparatus comprises a boom displaceable along spaced rails and a carriage displaceable along the boom perpendicularly to the displacement direction of the boom. A machining station is adjustably supported on the carriage by three adjustment means to adjust a machine head, such as a milling cutter, towards and away from a workpiece disposed between the rails beneath the machining station. Adjustment of the machine head results from inaccuracies in the level of the rails and/or the displacement of the carriage. Variations in the level of the rails and/or carriage are determined by a respective sensor associated with each adjustment means which monitors a reference defined by a planar laser beam. Alternatively one of the three adjustment means between the machining station and the carriage may be replaced by a pivot with the third adjustment means being arranged to adjust the machine head relative to the remainder of the machining station.