WO2012000831A1 - Dispositif de machine-outil doté d'un ensemble détecteur présentant au moins un élément capteur optique - Google Patents

Dispositif de machine-outil doté d'un ensemble détecteur présentant au moins un élément capteur optique Download PDF

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Publication number
WO2012000831A1
WO2012000831A1 PCT/EP2011/060313 EP2011060313W WO2012000831A1 WO 2012000831 A1 WO2012000831 A1 WO 2012000831A1 EP 2011060313 W EP2011060313 W EP 2011060313W WO 2012000831 A1 WO2012000831 A1 WO 2012000831A1
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WO
WIPO (PCT)
Prior art keywords
sensor
unit
machine tool
tool device
signal
Prior art date
Application number
PCT/EP2011/060313
Other languages
German (de)
English (en)
Inventor
Ulrich-Lorenz Benzler
Markus Hueser
Wolfgang Niehsen
Stephan Simon
Andreas Pfeil
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to CN201180032944.1A priority Critical patent/CN103079773B/zh
Priority to EP11740855.9A priority patent/EP2588278B1/fr
Priority to RU2013104254/02A priority patent/RU2013104254A/ru
Publication of WO2012000831A1 publication Critical patent/WO2012000831A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
    • B25H1/0078—Guiding devices for hand tools
    • B25H1/0092—Guiding devices for hand tools by optical means

Definitions

  • Machine tool device with a sensor unit which has at least one optical sensor element
  • the invention is based on a machine tool device, in particular a hand-held power tool device, according to the preamble of claim 1.
  • the invention is based on a machine tool device, in particular a handheld power tool device, having a sensor unit which, in at least one operating state, provides at least one sensor signal which is provided for determining a relative movement with respect to an environment. It is proposed that the sensor unit has at least one optical sensor element.
  • sensor signal of a sensor unit is to be understood as meaning, in particular, an analog or digital output parameter of the sensor unit, which depends directly on a measured variable of the sensor unit and / or digital processing provided output of the sensor signal to be understood at least one signal output of the sensor unit.
  • optical sensor element is to be understood as meaning, in particular, an element sensitive to an optical signal, wherein a "visual signal” is to be understood as meaning, in particular, a brightness in at least one defined optical wavelength range.
  • a "visual signal” is to be understood as meaning, in particular, a brightness in at least one defined optical wavelength range.
  • the op- be optimized sensor element to defined wavelengths of the wavelength range.
  • a "wavelength range is to be understood in particular a wavelength range of the visible light. In principle, however, the optical sensor element can also be sensitive in wavelength ranges of the invisible light, in particular in the infrared range.
  • a particularly simple sensor unit can be realized, which can be provided in particular for connection to a security unit, and advantageously a high added benefit for others
  • the machine tool device can be firmly integrated into the machine tool or can also be designed as an accessory, in particular in the form of an additional handle.
  • the sensor unit comprises at least one further sensor element, wherein the at least two sensor elements at least partially mutually shifted detection areas.
  • a "detection region of a sensor element” should be understood to mean, in particular, at least one angular region along at least one spatial direction, via which the sensor element detects the ambient brightness.
  • the detection areas cover different areas of space, at least in some areas.
  • relative movement can be detected particularly easily, the sensor signal thereby being provided in particular for determining a direction of movement.
  • the sensor unit has at least one sensor axis and the at least two sensor elements are arranged substantially annularly around the sensor axis.
  • a “sensor axis” is to be understood here as meaning, in particular, a virtual axis through which a sensitive direction of the sensor unit, ie a direction along which the sensor unit is able to determine a relative movement with respect to the surroundings, is defined as “arrangement of the sensor elements” a defined by the detection ranges of the sensor elements orientation of the sensor elements are understood.
  • an “annular arrangement” is to be understood here as meaning, in particular, a substantially concentric arrangement of the sensor elements about the sensor axis
  • the sensor elements each have a center orientation, with the center orientations of all sensor elements intersecting in the sensor axis a detection direction of the sensor elements are understood, which is defined by a geometric center of a sensor surface of the sensor elements and a geometric center of the detection area at a defined distance from the sensor surface.
  • an essentially annular arrangement is to be understood to mean, in particular, that distances of the sensor elements from the sensor axis are essentially the same, and in particular, it should also be understood that only part of the sensor elements are arranged annularly around the sensor axis, in particular Rotary movements about the sensor axis can be advantageously determined by means of a substantially annular arrangement, whereby a particularly advantageous embodiment can be found, in particular for handheld power tools As a result, it is conceivable that the at least one sensor element is rotatably arranged liable if all sensor elements are rotatable about the arrangement axis.
  • the at least one sensor element is freely rotatably mounted, wherein it has at least one imbalance, which causes an alignment of the sensor element in a gravity field.
  • the sensor unit has at least one drive device which is provided to drive the at least one sensor element in a rotational movement. As a result, a number of the sensor elements can be reduced and / or a housing movement can be compensated.
  • the at least one optical sensor element is designed as a photodiode or a phototransistor, whereby a particularly constructive design of the sensor unit can be realized.
  • a photodiode or a phototransistor is to be understood as meaning, in particular, an element having at least one PN or NP junction, wherein advantageously a voltage delivered by the sensor element or a current delivered by the sensor element serves as the signal value of the measurement signal.
  • an embodiment of the sensor elements in the form of a line or image sensor is also conceivable, whereby in particular an embodiment with more than 100 or more than 1000 sensor elements can be realized.
  • the sensor elements can also be designed as photoresistors.
  • the machine tool device have an arithmetic unit which is provided to determine a speed value of the relative movement on the basis of an ambient brightness detected by the at least one sensor element.
  • a "computing unit” is to be understood as meaning in particular a unit having an information input, an information processing and an information output
  • the arithmetic unit has at least one processor, a memory, communication means, possibly further electrical components, an operating program and / or calculation routines which are based on a
  • the sensor signal can be evaluated more advantageously by a computing unit, it being possible to determine the speed value on the basis of the ambient brightness of a particularly advantageous embodiment of the machine tool device "
  • a signal value of the sensor signal which is provided by the at least one sensor element, depends at least on the ambient brightness.
  • the sensor value may additionally represent a color value beyond the ambient brightness.
  • a multi-dimensional design of the signal value is possible, as for example in the case of a separate evaluation of different wavelengths and / or wavelength ranges which respectively form individual values of the signal value.
  • the arithmetic unit is provided for determining an angular velocity, whereby an advantageous circuit basis for triggering safety circuits can be given in particular for a safety unit of the machine tool.
  • determining a speed, in particular an angular speed is meant in particular that at least one routine is stored in the arithmetic unit, which is intended to calculate an actual speed at least approximately from a temporal change of the sensor signal
  • At least the different signal values provided by the at least two sensor elements, which represent a temporal change of the ambient brightnesses measured by them, can be found by determining the angular velocity a particularly advantageous embodiment for machine tools with a rotary tool, such a configuration being particularly advantageous for handheld power tools ,
  • the determination of the relative movement is not limited to a rotational movement.
  • the determinable relative movement is due in particular to the arrangement of the sensor elements. If the sensor elements are arranged, for example, along a linear arrangement axis, the sensor unit can be used to determine a linear movement along this arrangement axis. In the case of a spherical arrangement of the sensor elements, the arithmetic unit could in principle recognize a rotational movement about an arbitrary axis of rotation on the basis of the sensor signal and determine its speed value. It is further proposed that the machine tool device has a safety unit which comprises the sensor unit.
  • a “security unit” is to be understood in particular as meaning a device which, in at least one operating state, prevents damage, in particular of a part of a handheld power tool, and / or in particular increases operator safety
  • an "uncontrolled blocking case” is to be understood in particular a process in which an insert tool jammed in a workpiece to be machined, wherein the reaction torque acting on the housing exceeds a holding force of the operator and the housing is uncontrolled over a certain angular range about an axis, in particular a rotation axis an insert tool attachment, rotates.
  • the security unit is at least partially embodied in one piece with the arithmetic unit, ie at least one routine for the security unit is preferably stored in the arithmetic unit.
  • the machine tool device comprise a data transmission unit for an external data transmission, which comprises the sensor unit.
  • a "data transmission unit” should in particular be understood to mean a device which is provided in at least one operating state for receiving a digital and / or digitizable data packet from an external device, such as for performing a software update or transmitting parameters of a workpiece machining
  • the data transmission unit for reading out the data packet is provided for evaluating the sensor signal, whereby flexibility and, in particular, ease of use for a user can be increased
  • the data transmission unit is at least partially integral with the arithmetic unit, ie at least a routine for the data transmission unit deposited.
  • the machine tool device comprises an operating unit which comprises the sensor unit.
  • a control unit is to be understood in particular as a unit which is provided for the direct input of operating commands by a user, such as, for example, a control unit. unit for setting a direction of rotation, a rotational speed and / or a torque of a drive unit, such as a unit for controlling user menu or other, the skilled person appear useful settings.
  • the operating unit is provided to evaluate the sensor signal for setting and / or adjusting at least one machine tool parameter. Thereby, a number of controls can be advantageously reduced, which in particular manufacturing costs can be reduced.
  • the operating unit is at least partially designed in one piece with the arithmetic unit, ie, at least one routine for the operating unit is preferably stored in the arithmetic unit.
  • the machine tool device comprises a position detection unit which comprises the sensor unit.
  • a "position determination unit” is to be understood as meaning, in particular, a unit for determining a position of the machine tool device with respect to at least one external reference point
  • the position detection unit is provided to evaluate the sensor signal for determining a relative position with respect to the at least one external reference point
  • a "reference point” is to be understood in particular as a point independent of the machine tool device.
  • the position determination unit is at least partially designed in one piece with the arithmetic unit, ie, at least one routine for the position determination unit is preferably stored in the arithmetic unit.
  • the invention is based on a machine tool, in particular a hand tool, all conceivable to those skilled in machine tools, such as particular hammers, screwdrivers, milling, angle grinder, multifunction tools and / or in particular drills, for operation with a machine tool device would be conceivable.
  • machine tools such as particular hammers, screwdrivers, milling, angle grinder, multifunction tools and / or in particular drills
  • stationary machine tools for example as a rotation angle sensor and / or angular velocity sensor.
  • the invention is based on a method for a machine tool device, in particular a handheld power tool device, in which, in at least one operating state, at least one relative movement with respect to an environment is determined on the basis of a sensor signal. It is proposed that for determining the relative movement at least one ambient brightness is detected, whereby a particularly simple determination of the relative movement can be realized.
  • FIG. 1 shows a hand tool with a hand tool device according to the invention
  • FIG. 3 shows a sensor unit of the handheld power tool device with a plurality of optical sensor elements
  • FIG. 1 shows a machine tool designed as a handheld power tool having a machine tool device 30 according to the invention.
  • the machine tool is designed as a drilling machine. It has a drive motor 32, an insert tool attachment 34 and a pistol-shaped housing 36. Basically, it can further include a battery.
  • the insert tool fixture 34 is disposed on a front side of an upper substantially tubular portion of the housing.
  • the drive motor 32 is disposed in the housing 36.
  • the drive motor 32 drives the insert tool mount 34 in rotation about an axis of rotation 38 during operation.
  • the hand tool has an auxiliary handle attachment 40 which secures an auxiliary handle 42.
  • the auxiliary handle 42 is movable about the rotation axis 38.
  • the auxiliary handle 42 is fixedly connected to the housing 36 of the machine tool.
  • the auxiliary handle attachment 40 is arranged between the drive motor 32 and the insert tool attachment 34 on the outside of the housing 36.
  • the auxiliary handle 42 is formed as a handle, which is connected on one side of the housing 36 of the power tool with the housing 36, which faces an insert tool attachment 34 of the power tool. Along a main working direction, it is arranged after a main handle 44.
  • the machine tool device 30 has a safety unit 22, which engages in an uncontrolled blocking case and reduces or discontinues a power output of the insert tool attachment 34, for example by switching the drive motor 32 de-energized.
  • the machine tool device 30 comprises a sensor unit 10 connected to the housing 36, which provides a sensor signal 12, by means of which the safety unit 22 detects a relative movement of the housing 36 with respect to an environment.
  • the safety unit 22 thus comprises the sensor unit 10.
  • the sensor unit 10 comprises a plurality of similar optical sensor elements 14 (see FIG.
  • the sensor elements 14 each detect an ambient brightness.
  • a sensor signal 12 provided by the sensor unit 10 describes the individual ambient brightnesses detected by the sensor elements 14.
  • the sensor elements 14 are designed as phototransistors. All optical sensor elements of the sensor unit are designed analogously. For the sake of clarity, therefore, only two of the sensor elements 14 are shown in the drawings, wherein the reference symbol of the further sensor element 14 'has an apostrophe attached to it. To distinguish in the following description and the drawings, further reference numerals, which are associated with the sensor element 14 ', also an apostrophe added
  • the sensor elements 14, 14 'each have a defined detection area 16, 16'.
  • the detection areas 16, 16 'of the sensor elements 14, 14' are each offset by a defined amount from each other (see Figure 4).
  • the Sensor elements 14, 14 'thus detect the ambient brightness in different spatial areas. In a natural environment, the different room areas have different ambient brightness.
  • the sensor signal 12, which provides the sensor unit 10, has a plurality of signal values 46, 46 ', which correspond to the different ambient brightnesses detected by the sensor elements 14, 14'.
  • the different signal values 46, 46 'each represent an integral measure of the ambient brightness in the spatial area detected by the respective sensor element 14, 14'.
  • the signal values 46, 46 ' are combined to form the sensor signal 12 (see FIG.
  • the sensor signal 12 or the individual sensor signals 46, 46 ' can in principle be transmitted in different forms, such as, for example, in the form of current, voltage, resistance or as a digital value.
  • the sensor unit 10 For arranging the sensor elements 14, 14 ', the sensor unit 10 comprises an annular sensor carrier 48.
  • the sensor carrier 48 is arranged in the region of the auxiliary handle attachment 40.
  • a total of 24 sensor elements 14, 14 'are arranged over the circumference of the sensor carrier 48 (cf., FIG. 2).
  • the sensor carrier 48 is fixedly connected to the housing 36 of the machine tool.
  • the sensor unit 10 is arranged directly next to the auxiliary handle attachment 40 arranged on the housing 36.
  • the sensor carrier 48 is partially designed in one piece with the housing 36. In principle, it is also conceivable to connect the sensor unit 10 at least partially firmly to the auxiliary handle 42 or to carry it out partially in one piece with the auxiliary handle 42.
  • a power supply and / or a transmission of the sensor signal 12 between the housing 36 and the auxiliary handle 42 can optionally be carried out wired or wireless.
  • the sensor unit 10 has a sensor axis 18, which is oriented coaxially with the axis of rotation 38 of the insert tool attachment 34.
  • the detection areas 16, 16 'of the sensor elements 14, 14' include with respect to Sensor axis 18 an angle range of a maximum of 50 degrees.
  • the sensor elements 14, 14 ' have a sensitivity which drops to approximately one third in an angular range of ⁇ 15 degrees, starting from a center orientation 50, 50' of the corresponding sensor element 14, 14 '.
  • the center orientations 50, 50 'of the sensor elements 14, 14' are oriented perpendicular to the sensor axis 18 and thus also perpendicular to the axis of rotation 38.
  • the angular spacing of the sensor elements 14, 14 ' corresponds to an angular distance of the center orientations 50, 50' of the sensor elements 14, 14 '.
  • the machine tool device 30 comprises a computer unit 20.
  • the computer unit 20 determines from the ambient brightness detected by the sensor elements 14, 14 'a relative movement which the sensor unit 10 and thus the housing 36 have with respect to the environment. From a temporal change of the sensor signal 12, the arithmetic unit 20 determines a speed value of the relative movement.
  • the relative movement determined by the arithmetic unit 20 is formed as a rotation about the rotation axis 38.
  • the speed value determined by the computing unit 20 reflects an angular velocity about the axis of rotation 38.
  • the arithmetic unit 20 applies a continuity equation to determine the angular velocity. Based on the equation of continuity, the arithmetic unit calculates a twist angle for each sensor element 14, 14 '. For this purpose, the arithmetic unit compares the signal values 46, 46 'of second adjacent sensor elements 14, 14' and determines their temporal change. An averaging over the angles of rotation, which determines the arithmetic unit 20 from the individual signal values 46, 46 ', provides an estimate for an angle of rotation of the housing 36. By means of a derivation of the angle of rotation according to time, the arithmetic unit 20 then calculates the angular velocity.
  • a counter of the continuity equation is designed as a temporal change of the signal value 46 of the considered sensor element 14.
  • the arithmetic unit 20 detects the signal value 46 at a time t- ⁇ and a time t.
  • a denominator of the continuity equation represents a spatial differentiation.
  • the arithmetic unit 20 determines a difference between the signal value 46 of the considered sensor element 14 and the signal value 46 'of the adjacent sensor element 14' at time t- ⁇ and a difference of the signal values 46, 46 'of the adjacent sensor elements 14, 14 'at time t and sums the two differences.
  • the angle equation of the adjacent sensor elements 14, 14 'and a factor -2 enter into the equation of continuity. The calculated by the arithmetic unit 20 continuity equation is so
  • the signal values 46, 46 'of the individual sensor elements 14, 14' remain substantially constant. If the housing 36 experiences a rotational movement, which is caused, for example, by tilting of an insertion tool 52, a spatial area detected by the sensor elements 14, 14 'changes. Since the different spatial regions have different brightnesses under normal conditions of use, the rotational movement of the housing 36 also changes the signal values 46, 46 'provided by the sensor elements 14, 14'. The counter of the above equation of continuity thus becomes unequal to zero.
  • the denominator of the continuity equation becomes unstable for small values, ie error propagation of a measurement error becomes large.
  • the arithmetic unit 20 determines by averaging the individual angles of rotation, the arithmetic unit 20 therefore uses only those angles of rotation in which the denominator of the continuity equation is at least equal to a limit value.
  • the arithmetic unit 20 uses an average of the denominator of all continuity equations to the individual sensor elements 14, 14 '. If the denominator is not smaller than a median formed in this way, the corresponding angle of rotation is used for the calculation of the angle of rotation of the housing 36.
  • the sensor signal 12 is shown for three different times, each having a time interval ⁇ .
  • the sensor signal 12 has in each case 24 sensor values 46, 46 'whose signal level corresponds to the ambient brightness.
  • An abscissa of Figure 5 is an arrangement of the sensor elements 14, 14 'on the sensor carrier 48 in polar coordinates with respect to the sensor axis 18 again.
  • An ordinate of FIG. 5 represents the signal height of the individual signal values 46, 46 '.
  • a distance between two sensor values 46, 46 'shown in FIG. 5 corresponds exactly to the angular distance that the corresponding two sensor elements 14, 14' have.
  • a signal change starting from the sensor signal 12 at the time t- ⁇ to the sensor signal 12 at the time t corresponds to a rotation of the housing 36 by 12 degrees.
  • a signal change to the sensor signal 12 at the time t + ⁇ corresponds to a further rotation of the housing 36 by 12 degrees.
  • the sensor unit 10 has a total of 24 optical sensor elements 14, 14', a probability increases that the rotation of the housing 36 increases at least one of the signal values 46, 46 '. changed, whereby the arithmetic unit 20 detects the relative movement of the housing 36 based on the corresponding signal value 46, 46 '.
  • the arithmetic unit 20 can also determine the angle of rotation of the housing 36 by comparing the sensor signal 12 with the sensor signal 12 at the instant t- ⁇ at the instant t.
  • the arithmetic unit 20 determines the angle of rotation by shifting the sensor signal 12 at the time t along the abscissa and checking a match between the two sensor signals 12 at the times t- ⁇ and t. For a displacement corresponding to the actual twist angle of the housing 36, the match is maximum.
  • a motion-independent change of the ambient brightness during the time period ⁇ is small in relation to the motion-dependent change in the ambient brightness and can therefore be neglected.
  • the arithmetic unit 20 can basically at least partially analog
  • the counter of the continuity equation that is to say the temporal differentiation of the signal value 46 of the sensor element 14
  • the denominator or at least parts of the denominator in particular a calculation of the difference between the signal values 46, 46 'of adjacent sensor elements 14, 14', can likewise be represented analogously.
  • a predetermined by the arithmetic unit 20 sampling frequency which is given in particular by the time interval ⁇ , is adapted to light fluctuations in the ambient brightness.
  • fluorescent tubes but also other artificial light sources, have a regular pulse rate, which is given for example by a mains frequency.
  • the pulse rate of the light sources is usually higher than a perception rate of the human eye, i. is in particular greater than 30 hertz.
  • the sampling frequency is adapted to the pulse frequency.
  • the sampling frequency is substantially the same as the pulse rate that artificial light sources commonly have.
  • the arithmetic unit 20 advantageously defines the sampling frequency on the basis of the network frequency. In principle, however, the sampling frequency can also be stored as a fixed value in the arithmetic unit 20, for example at 50 hertz, or determined automatically by evaluation of the sensor signal 12.
  • Sampling frequency can also be an integer multiple or an integer division of the pulse rate.
  • the arithmetic unit 20 integrates the signal values
  • the time span for the integration is greater than a time span which is given by a frequency of the brightness changes to be compensated, that is to say in particular greater than a time span given by the pulse frequency or the network frequency.
  • the security unit 22 comprises the arithmetic unit 20.
  • the uncontrollable blocking case is detected by the security unit 22 on the basis of the angular velocity. If the angular velocity computing unit 20 determines a value that exceeds a defined limit value, the arithmetic unit 20 triggers a safety circuit and reduces the power output of the insert tool attachment 34.
  • the limit value for triggering the safety circuit is stored in the arithmetic unit 20.
  • the computing unit 20 is in particular to form the security unit
  • the arithmetic unit 20 recognizes, based on the individual signal values 46, 46 ', movements which are independent of a movement of the housing 36, i. can not be caused by a movement of the housing 36 relative to the environment.
  • the safety unit 22 is intended to be based on the signal values
  • the machine tool device 30 comprises a data transmission unit 24, which comprises the sensor unit 10.
  • the data transmission unit 24 uses the sensor signal 12 for data transmission in an operating mode.
  • the data transmission unit 24 is thus at least partially designed as an optical data transmission unit 24.
  • An optical signal emitted by a data transmitter effects a change in the signal value 12.
  • the data transmission unit can in particular use a region displaced relative to a visible region of the light, such as in particular an infrared region.
  • the data transmission unit can basically be decoupled from the security unit 22, ie a part of the sensor signal 12 that is used by the security unit 22 can be distinguished from a part of the sensor signal 12 that is used by the data transmission unit 24.
  • the data transmission unit 24 further comprises the arithmetic unit 20, which evaluates the sensor signal 12 for reading the individual data blocks.
  • the machine tool device comprises an operating unit 26, which likewise comprises the sensor unit 10.
  • the operating unit 26 is provided for direct input of operating commands by a user.
  • the sensor unit 10 with the optical sensor elements 14, 14 ' forms an operating element of the operating unit 26.
  • patterns for brightness changes are defined, which correspond to operating commands of a user. By gestures that cause changes in the ambient brightness in accordance with the defined patterns, the user can input operating commands, whereby corresponding actions are performed by the arithmetic unit 20.
  • control unit 26 By means of the control unit 26 executable actions are for example an adjustment of a direction of rotation, a rotational speed or torque of the drive motor 32, a setting of a startup speed or a gear shift.
  • the operating unit 26 can be used to set a hammer blow, to open or close the insert tool attachment 34, to change or control a menu display and to switch off the safety unit 22.
  • other useful to the skilled person actions are conceivable, especially in other hand tool machines.
  • the machine tool device 30 comprises a position determination unit 28, which comprises the sensor unit 10.
  • the position detection unit 28 is provided to detect a position of the machine tool with respect to at least one external reference point.
  • the external reference points are designed as light sources.
  • the reference points are defined around a work surface. They have stored in the arithmetic unit 20 optical properties, based on which the position detection unit 28 can distinguish the reference points of other light sources. For example, it is conceivable to define the reference points by means of infrared light sources, in particular infrared diodes.
  • the position determination unit 28 a user can determine a position of the power tool on the work surface.
  • the position detection unit 28 thus serves to position the handheld power tool device 30 with respect to the external reference points.
  • the position determining unit 28 comprises an optical display unit 54, on which the position of the hand-held power tool device 30 with respect to the external reference points is indicated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Numerical Control (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Manipulator (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

L'invention concerne un dispositif de machine-outil, en particulier un dispositif de machine-outil portative, doté d'un ensemble détecteur (10) qui, dans au moins un état de fonctionnement, produit au moins un signal détecteur (12) qui est prévu pour la détermination d'un mouvement relatif par rapport à un environnement. L'invention est caractérisée en ce que l'ensemble détecteur (10) présente au moins un élément capteur optique (14).
PCT/EP2011/060313 2010-07-02 2011-06-21 Dispositif de machine-outil doté d'un ensemble détecteur présentant au moins un élément capteur optique WO2012000831A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201180032944.1A CN103079773B (zh) 2010-07-02 2011-06-21 工具机装置、工具机和用于工具机装置的方法
EP11740855.9A EP2588278B1 (fr) 2010-07-02 2011-06-21 Dispositif de machine-outil doté d'un ensemble détecteur présentant au moins un élément capteur optique
RU2013104254/02A RU2013104254A (ru) 2010-07-02 2011-06-21 Устройство для технологической машины с воспринимающим блоком, имеющим по меньшей мере один оптический воспринимающий элемент

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010030900 DE102010030900A1 (de) 2010-07-02 2010-07-02 Werkzeugmaschinenvorrichtung mit einer Sensoreinheit, die wenigstens ein optisches Sensorelement aufweist
DE102010030900.1 2010-07-02

Publications (1)

Publication Number Publication Date
WO2012000831A1 true WO2012000831A1 (fr) 2012-01-05

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EP (1) EP2588278B1 (fr)
CN (1) CN103079773B (fr)
DE (1) DE102010030900A1 (fr)
RU (1) RU2013104254A (fr)
WO (1) WO2012000831A1 (fr)

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US11845173B2 (en) 2020-10-16 2023-12-19 Milwaukee Electric Tool Corporation Anti bind-up control for power tools

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DE102013212635B4 (de) 2013-06-28 2024-05-08 Robert Bosch Gmbh Handwerkzeugmaschine
DE102018218685A1 (de) * 2018-10-31 2020-04-30 Robert Bosch Gmbh Handwerkzeugmaschine
DE102019201532A1 (de) * 2019-02-07 2020-08-13 Robert Bosch Gmbh Werkzeugmaschinenvorrichtung

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EP2588278B1 (fr) 2016-10-19
CN103079773B (zh) 2016-03-23
DE102010030900A1 (de) 2012-01-05
EP2588278A1 (fr) 2013-05-08
CN103079773A (zh) 2013-05-01

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