EP2552649A1 - Dispositif de montage et procédé de montage - Google Patents

Dispositif de montage et procédé de montage

Info

Publication number
EP2552649A1
EP2552649A1 EP10712426A EP10712426A EP2552649A1 EP 2552649 A1 EP2552649 A1 EP 2552649A1 EP 10712426 A EP10712426 A EP 10712426A EP 10712426 A EP10712426 A EP 10712426A EP 2552649 A1 EP2552649 A1 EP 2552649A1
Authority
EP
European Patent Office
Prior art keywords
screwing
detecting
angle
sensor
mounting device
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP10712426A
Other languages
German (de)
English (en)
Other versions
EP2552649B1 (fr
Inventor
Thomas Zeller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfing Montagetechnik GmbH
Original Assignee
Alfing Montagetechnik 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
Family has litigation
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Application filed by Alfing Montagetechnik GmbH filed Critical Alfing Montagetechnik GmbH
Priority to PL10712426T priority Critical patent/PL2552649T3/pl
Publication of EP2552649A1 publication Critical patent/EP2552649A1/fr
Application granted granted Critical
Publication of EP2552649B1 publication Critical patent/EP2552649B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/147—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for electrically operated wrenches or screwdrivers

Definitions

  • the present invention relates to a mounting device and method with a motor-driven screw device for tightening or loosening screws.
  • Screw connections used to connect components. This angle of rotation or Steckgrenzanzieh compiler are often used to tighten the screws. Compared to the Drehmomentanziehclar in which a screw is tightened to reach a certain torque, they offer
  • the screw With the angle-controlled tightening procedure, the screw is further rotated by a pre-defined angle starting from a joining or swelling moment. Keeping the angle of rotation is of utmost importance as this directly affects the strength and durability of the connection. At the yield limit controlled
  • Tightening procedure is the detection of the reactive turning angle around which the screw rotates during tightening, determining for the tightening result.
  • Screwing directly the angle of rotation by which a screw from the joining or Schwellmoment is further influenced.
  • the measured rotation of the screw head relative to the housing of the screwing device does not coincide with a rotation angle of the screw head relative to the workpiece.
  • the angle of rotation can not be determined correctly, since it can be influenced by movement of the screwing.
  • VDI 2862 A-classified glands which are used as glands with danger to life and limb Class B, as well as for B-classified fittings, which can cause a failure of relevant functions and / or lying down of a vehicle.
  • Screwing used, which are supported against the workpiece or fixed.
  • a twisting of the screwing in relation to
  • a disadvantage of this device is that it is much less flexible than hand-held screwing devices, since the screwing must be supported against the workpiece every May, A flexible and time-saving use is not possible. Also, a support against the workpiece in most cases is not feasible.
  • the alternative of a fixed to a handling device (tripod, telescope) mounted screwdriver also limits the flexibility.
  • This is intended to determine the movement of the screw relative to the environment and thus the angle of rotation of the screw relative to the workpiece more accurately determined by the correction of the detected angle of rotation of the screw head relative to the housing with the detected rotation angle of the housing about the axis of the screw relative to the environment become.
  • a disadvantage of these embodiments is that the reliability of the procedures and facilities is not guaranteed. Thus, a measurement error of the sensors, e.g. due to temperature fluctuations or defect of the sensors can not be detected. A reliable determination of the Drehwinkeis the screw relative to the workpiece is therefore not possible with these systems. Furthermore, the VDI 2862 for A-classified glands requires redundant control of the measured and control variables, as well as a self-test of the measuring sensor system. Since the angle of rotation belongs to these measurement and control variables, the method and device according to the description in the cited patents are practically not applicable. Even for B-classized fittings use is not advisable because of faulty
  • This mounting device comprises a motor-driven
  • Screwing device for tightening or loosening screws with a screw head and a housing
  • the screw device comprises a first angle measuring device for detecting the rotational angle of the housing about the axis of the screw head relative to the environment.
  • the mounting device is characterized in that it comprises a recognition unit for detecting erroneous sensor data at rest, which in turn comprises means for detecting the idle state and comparing means for comparing the measured at rest sensor values with predefined thresholds.
  • the Drehwinkei of the housing can be determined about the axis of the screw head relative to the environment by the first Winkelmessinnchtung.
  • the detection unit for detecting defective sensor data is now determined by the means for detecting the idle state, whether the screwing device is in the idle state. If this is the case, the sensor values of the first angular measurement measured in the quiescent state can be compared with predefined threshold values.
  • the measured angle should be essentially zero, it can now be determined by comparison with a predefined threshold value or a tolerance range whether the outputs of the first angle measuring device are correct. If the measuring device measures a value in sleep mode that exceeds or falls below the threshold value, then there is obviously an error in the angle measurement. Another use of the screw could now be prevented to prevent screw with a faulty first
  • Winkelmessignchtung be tightened, which can lead to a faulty screw connection. Also, connections that have been through the last review by the
  • Comparative saddle were made as not rated in order, since a correct function of the first Winkelmessignchtung for these screw connections can not be guaranteed.
  • Sensor data of angle measuring devices are detected in a screw and, if appropriate, a corresponding assessment of the fittings, a signaling to the user, or a blocking of the mounting device can be made. This increases the safety when using hand-held motor-driven
  • Screwing devices and allows a self-test of the measuring sensor.
  • the recognition unit is preferably formed with a signaling means for sending a message to the user and a blocking means for inhibiting the use of the screwing device.
  • Angle measuring device to inform the user about this malfunction and to prevent further use of the screw to prevent use in incorrectly functioning angle measuring devices and thus a possible incorrect screwing.
  • the means for detecting the idle state preferably comprises in one
  • Embodiment at least one sensor, in the screwing, for detecting movement.
  • Screwing be detected, since the sensor is positioned in the screwing. If the output value does not change over a possibly relatively short time unit or only within narrow limits, then it can be assumed that the tool is in the idle state and recognition of faulty sensor data is possible
  • recognition may e.g. be detected via a pressure sensor or other sensors on an inductive, capacitive, optical or mechanical basis.
  • This type of hibernation detection is very robust because e.g. mechanical sensors for
  • Hibernation means in the screwing device, for determining the position
  • Screwing in space for example, triangulation, include.
  • Transponders include, wherein either the transponder or the means for reading the transponder is arranged in the screwing device.
  • the comparison means may be further configured to compare the sensor values with a minimum limit and a maximum limit.
  • the Vergletchsmittei can also be designed so that it compares the sensor data with a tolerance range around a defined initial value.
  • the assembly device further comprises timing means which measures the time since the last time the screw device was detected by the hibernation detection means, signaling means for signaling a message to the user when the measured time exceeds a first threshold, and blocking means to prevent the use of the
  • Screwing device when the measured time exceeds a second threshold.
  • Fittings are further minimized because errors of the sensors, e.g. can occur due to defect or heating due to long use of the screwing, can be detected in time.
  • the user is first required the
  • the mounting device comprises a second angle measuring device for detecting the angle of rotation of the screw head relative to the housing, provided in the screwing device, and an angle correcting unit for determining the actual angle of rotation of the screw head relative to the environment from the measured angle of rotation of the screw head and the detected movement of the housing , provided in the mounting device.
  • Angle of rotation of the housing about the axis of the screw head relative to the environment also the angle of rotation of the screw head relative to the housing measured, which is a determination of the actual angle of rotation of the screw head relative to the environment through the
  • the first winkeime device may comprise a plurality of sensors for respectively redundantly measuring the rotational angle of the screwing device or at least one intrinsically safe sensor. Also, the first one
  • Winkeimess drove multiple sensors with different measuring methods, such as rotation rate sensors or acceleration sensors include.
  • a mounting device may be equipped with an error detection means for detecting measurement errors of the sensors, wherein the
  • Error detection means Calculation means for calculating at least one
  • Difference value of the plurality of measured values of the plurality of sensors signaling means for sending a message to the user when at least one difference value exceeds a threshold value, and blocking means for inhibiting the use of the screwing device.
  • the faulty sensor data can be detected during operation and a corresponding assessment of the screw, a signaling to the user, or a blocking of the Screwing device can be made. This supports the detection of faulty sensor data and the guarantee of faultless screwing.
  • Further embodiments may further comprise measuring range comparison means for comparing measured sensor values of the first angle measuring device with a predetermined measuring range of the sensors of the first angular measuring direction,
  • Supply voltage monitoring means for monitoring the supply voltage of the sensors, or comprise at least one temperature measuring unit mounted in the region of at least one sensor for measuring the temperature of the at least one sensor.
  • the screwing device may be formed in a preferred embodiment as electro, hydraulic, or compressed air operated screwing devices.
  • the screwing device may further include a battery for powering the
  • the object is also achieved by a method according to claim 20.
  • the method for tightening or loosening screws by means of a motor-driven screwing device with a screw head and a housing comprises the step of detecting a rotational angle of the housing about the axis of the
  • Screw head relative to the environment by means of a first angle measuring device and is characterized by the step of detecting faulty sensor data at rest by means of a detection unit, comprising the steps of recognizing (S1803) the idle state and the comparison of measured at rest sensor values with predefined Schween by means of a comparison means.
  • the method further comprises the steps of sending a message to the user by means of a signaling means and inhibiting the use of the screwing device by means of a blocking means.
  • the step of detecting the idle state comprises the detection of movement by means of a sensor in the screw device.
  • the step of detecting the idle state comprises the detection of a constant output value of a sensor or the
  • the step of detecting the idle state comprises the detection of a contact of the screwing device with, or the approximation of
  • Screwing device to a surface.
  • the step of detecting the idle state comprises the detection of the storage of the screwing device in a tool tray.
  • the step of detecting the idle state comprises the position determination of the screwing device in space, for example via triangulation.
  • the method further comprises the steps of measuring the time since the last detected dropping of the screwdriver, signaling a message to the user when the measured time has a first threshold
  • the method further comprises the steps of detecting the angle of rotation of the screw head relative to the housing and determining the actual angle of rotation of the screw head relative to the environment from the measured angle of rotation of the screw head and the detected angle of rotation of the housing.
  • the method further comprises the steps of calculating at least one difference value of a plurality of measurement values of a plurality of sensors of the first angle measurement device, sending a message to the user if at least one difference value exceeds a threshold, and inhibiting the use of the screw device if at least one difference value the
  • the method further comprises the steps of determining a rotational angular velocity of the housing about the axis of the screw head, the
  • Rotational angular velocity exceeds the threshold.
  • the method further comprises the steps of comparing the angle of rotation of the housing about the axis of the screw head with a threshold value, and evaluating a running fitting as being out of order when the angle of rotation exceeds the threshold value.
  • the method further comprises the step of evaluating a running fitting as being in error if an error occurs during the
  • Fig. 1 shows the general principle of the inventive mounting device
  • FIG. 2 shows an expanded embodiment of the recognition unit
  • FIG. 3 shows a mounting device with a further embodiment of the means for detecting the idle state
  • 5b shows a further embodiment of the means for detecting the
  • FIG. 7 shows a further embodiment of the comparison means
  • FIG. 9 shows a further embodiment of the mounting device with signaling and SperrmStteln.
  • FIG. 10 shows a further embodiment of the mounting device with a
  • Fig. 1 another embodiment of the Winkeimess Republic
  • FIG. 12 shows a further embodiment of the winkeime device
  • FIG. 13 shows a further embodiment of the winkeime device
  • Fig. 14 shows a further embodiment of the mounting device with
  • Fig. 15 shows a weathered embodiment of the mounting device
  • FIG. 20 is a flow chart of another embodiment of the invention.
  • FIG. 22 is a flow chart of another embodiment of the invention.
  • Fig. 1 shows the basic principle of the invention. With reference to this figure, the basic principle of the invention will be explained in more detail below.
  • An assembly device 100 comprises a motor-driven
  • Screwing device 101 for tightening or loosening screws.
  • a bobvornchtung 101 consists of a housing 103 and a screw head 102, which is provided for receiving screws or nuts.
  • a first angle measuring device 104 is provided in the housing 103 of the screwing device 101 for detecting a rotation angle of the housing about the axis of the screw head relative to the environment.
  • the mounting device 100 comprises a detection unit 105 for detecting faulty sensor data in the idle state, soft center! 106 for detecting the idle state anduploadssmittei 107 for comparing with the measured at rest sensor values with predefined thresholds.
  • Detection unit can be provided both externally outside the ringvornchtung 101 or within the housing 103 of the screw 101. If the detection unit 105 is provided outside the screwing device in the mounting device 100, this is with the ffervornchtung e.g. connected via a cable connection. Also, another transmission of the data e.g. by radio is conceivable.
  • the first angle measuring device 104 may e.g. as a rotation rate sensor or as one
  • the output of the first angle measuring device 104 is checked by the means for detecting the idle state, whether the screwing device 101 is in the idle state. Possible methods of determining the idle state are described below.
  • the output of a rotation rate sensor can be used to determine the idle state by checking whether the output of the sensor is essentially constant around zero. Is e.g. the output of the sensor over a defined period smaller than a defined Schwewertwert, so can from a
  • the comparison means 107 can then compare the output of the first angle measuring device with predefined threshold values. If the measured sensor values are not within the tolerance range determined by the predefined threshold values, then it can be assumed that the first
  • Angle measuring device 104 does not work correctly. This can e.g. from a defective angle measuring device, temperature fluctuations or other influences. Possibly. can now take appropriate action, such as notifying the user, locking the mounting device or a corresponding evaluation of the last
  • a correction of the measured values of the first measuring device can be carried out, for example by the definition of a new zero point, if the sensor values are within permissible limits.
  • Fig. 2 shows a further embodiment of the invention
  • Idle state and comparing means 207 for comparing the dormant measured sensor values with defined dimming values, a signaling means 208 for sending a message to the user and a blocking means 209 for inhibiting the use of the screwing device. If an exceeding / undershooting of the predefined threshold values is detected at the comparison means 207, a message to the user can be sent by the signaling means 208. This can e.g. of optical and / or acoustic nature. A vibration alarm or a plain text display is also conceivable. Of course, a combination of different display methods vorstelibar.
  • the blocking means 209 By means of the blocking means 209, simultaneously or after a certain time after the notification of the user by the signaling means 208, an inhibition of the use of the
  • Screwing be made. This can e.g. by interrupting the power supply to electrical screwing or other
  • Supply center ! e.g. Compressed air in compressed air screwdriver
  • another blocking such. by blocking a control element, e.g. a switch is conceivable.
  • a control element e.g. a switch
  • FIG. 3 illustrates an embodiment of the idle state detection means 306.
  • at least one sensor 310 is included as part of the means 306 of FIG. 3
  • Detection of the idle state in the screwing device 301 preferably in the housing 303.
  • Analogous to the method described under "basic principle of the invention" can be determined by means of the sensor 310, if the screwing device is in the idle state
  • Fig. 4 shows another possibility of forming the means 406 for detecting the idle state.
  • a sensor 41 1 is provided, which detects the contact of the screw 101 with a surface.
  • the senor can be designed, for example, as a pressure sensor or as an otherwise inductive, capacitive, optical or mechanical sensor / switch.
  • no direct contact of the screwing device with the surface is necessary, for example, proximity switches or reflected-tone light barriers can also be used in which a certain distance between the screwing device and the surface can exist.
  • a plurality of corresponding switches can be arranged in the screwing device 101, so that depositing on each side of the screwing device can be detected.
  • the detection of the storage by means of a sensor thereby represents a relatively robust detection of the idle state, since little error-prone and technically simple sensors can be applied.
  • a combination of several different sensor for storage detection is conceivable.
  • the hibernation detection means 506 comprises
  • Tool tray 512 In this tool tray, a sensor 513 is provided for detecting the storage of ffervorrichiung 501 in the tool tray 512.
  • This sensor can operate on an inductive, capacitive, optical or mechanical basis similar to the previous embodiment.
  • the tool tray 512 may be e.g. firmly on the site of the screw 501 be complained. If the screwing 501 stored in the tool tray 512, this is detected by the sensor 513.
  • the ffervorrichiung 501 is now in the idle state and a detection and possibly correction of measurement errors of the first angle measuring device can be made.
  • the tool rest 512 may be formed in different shapes and may be configured such that the screw device 501 can be placed in any orientation and position on the tool rest 512, as well as in such a way that the screw device 501 only in a fixed predetermined orientation and location can be stored.
  • the latter can also offer the advantage that also e.g. acceleration sensors used in the screw 501 can be checked not only to constant values, but because the position of the sensors in the ffervorrichiung 501 and thus the position of the sensors in relation to
  • Tool tray 512 is known, can also be checked for the correctness of the measured values.
  • the tool tray 512 may also be provided with further elements, such as e.g. a charging station on battery-powered screwdrivers, or other additional components.
  • FIG. 5b shows another embodiment of the idle state detection means 2206, wherein the mounting device comprises at least one transponder 529b and means 530b for reading the transponder, either the transponder or the center! is arranged for reading the transponder in the screwing device.
  • the mounting device comprises at least one transponder 529b and means 530b for reading the transponder, either the transponder or the center! is arranged for reading the transponder in the screwing device.
  • Screwing in this example, located in the tray. An idle state can thus be detected.
  • Transponders be arranged in the screwing, in which case the transponder must be located outside the screwing.
  • the screwing device 606 comprises a means 613 for determining the position of the screwing device in space, for example via triangulation.
  • the position of the screwing device in space can be determined. If the position is substantially constant over a given period of time, it can be assumed that the screwing device 606 is at rest and detection and correction of measured sensor values can be performed. Also, a position in space, e.g. the position of a tool tray, as
  • Rest position are defined at which the screwing must be stored cyclically.
  • the triangulation is only an example of a position determination of the screw 606 in space. Further possibilities for determining the position are generally known to the person skilled in the art.
  • Embodiments are combined to a more accurate and / or redundant
  • Detect hibernation For example, e.g. the combination of a
  • Tool tray 512 with a sensor 310 in the screw conceivable.
  • FIGS. 7 and 8 illustrate possible embodiments of the comparison means 707, 807.
  • the sensor values can be compared either with a minimum limit value MinGW and a maximum limit value MaxGW or with a tolerance range TB about a defined initial value AW. In the latter case it is e.g. conceivable during commissioning of the mounting device 100 is a measured value of the first
  • Winkeimess founded to determine as a zero value.
  • an optionally contained offset is compensated.
  • a ToSeranz Symposium can then be defined around this initial value, in which the sensor values are assumed to be correct in the idle state.
  • a combination of absolute minimum limit values MinGW and maximum limit values MaxGW with relative limit values relative to an initial value AW is also conceivable. If the absolute limit values in idle state are defined, for example, as -200 and +200 and in addition a maximum fluctuation around the initial value of +/- 50 is allowed, the signal in idle state may be set at an exemplary initial value AW of 160 +1 10 and +200 vary. If this range is exceeded or fallen short of, then this is defined as a malfunction of the angle measuring unit and appropriate measures are initiated as described above.
  • FIG. 9 shows a mounting device 900 which further comprises timing means 914, signalizing means 915 and locking means 9 6.
  • the time measuring means 9 4 measures the time since the last idle state detection by the idle state detection means 906. If no idle state is detected by the means 906 in a predetermined period of time, the signaling means 915 outputs signals to the user in an optical, acoustic or other manner in order to enable him to store the data
  • the blocking means 916 prohibits the further use of the screwing device 901 if the measured time falls below a second threshold value.
  • the inhibition of the use can, as already described, e.g. by disconnecting a supply of the screwing done.
  • FIG. 10 shows a further embodiment of the mounting device 1000.
  • the angle of rotation of the housing about the axis of the screw head 1002 relative to the surroundings is measured by the first angle-limiting device 1004 provided in the screwing device 1001.
  • a second winkeime device 1018 detects the rotation angle of the screw head 1002 relative to the housing 1003.
  • the angle correction unit 1019 can now determine the actual rotation angle of the screw head 1002 relative to the environment or relative to the workpiece. This makes it possible, e.g. at rotational angle or
  • the recognition unit 1005 for the detection of faulty sensor data ensures a correct measurement of the rotation angle of the housing 1003 and allows its use even with critical screw connections.
  • the first angle calibration device can be used as both Rotation rate sensor as well as a combination of acceleration sensors or other motion sensors may be formed.
  • the second winkeime device can be designed, for example, as an incremental or absolute rotary encoder system or as a rotor position sensor system.
  • the Winkeikorrekturtechnik 1019 and the detection unit 005 for detecting faulty sensor data can be arranged both in the screwing, as well as outside.
  • the first instantaneous device 1 104 can also be configured redundantly with a plurality of sensors 1201 for redundantly measuring the angle of rotation of the screwing device, or as shown in FIG. 11A
  • intrinsically safe sensors 1121 for measuring the angle of rotation of the screw device include.
  • the sensors of the first angle-limiting device 1204 can also be designed as sensors with different measuring methods 1 120a, 1 120b, as shown in FIG. to reduce the influence of temperature by using different sensor types. This can e.g. as shown in Fig. 13
  • Winkeiming device 104 may additionally, as shown in Fig. 14, a
  • Error detection means 1422 for detecting Messfehiern the sensors in the screwing be included.
  • a calculating means 1423 calculates a difference value of the plurality of measured values of the plurality of sensors at a time. If the difference value formed exceeds a threshold value, then it can be assumed that the measurement of the first instantaneous means 104 could not be carried out correctly.
  • a signaling in acoustic, visual or other form can be delivered to the user by a signaling means 1424. Further, by the locking means 1425, the use of the screwing device can be prevented or interrupted. An evaluation of the screw connection as "Not OK" is also to be carried out.
  • the fixture 1500 is shown with a Meß GmbH'ichsstoff 1526 for comparing measured sensor values of the first Winkeimess worn with a predetermined measuring range of the sensors of the first Winkeimess issued.
  • Exceeds the signal of a sensor of the first Winkeimess INA the measuring range of the sensor, the measuring signal can be evaluated as invalid.
  • Exceeding the measuring range can be an accurate statement about the
  • this type of monitoring offers the advantage that a counteracting or a co-movement of the
  • Screwing with respect to the screwing only within certain geometric and physiological limits is possible. This makes it possible to optimally select the measuring range of the sensor or the sensors with respect to the accuracy with respect to the application as a sensor for an angle correction unit for screwing tools and at the same time reliably detect a fault of the measuring sensor or of the operator. Likewise, a maximum permissible rotational angular velocity or a threshold value or a maximum permissible rotational angle or a threshold value can be defined. If one of these is exceeded, the current fitting is rated as "Not OK".
  • the supply voltage is additionally supplied by means of a
  • Supply voltage monitoring means 1627 monitors. Should the
  • Fig. 7 is further a screw 1701 with a
  • Temperature measuring unit 1728 shown.
  • the temperature measuring unit 1728 may be placed in the region of a sensor to monitor the temperature of the sensor or the environment around the sensor. If the detected temperature is outside a tolerance range, a correct function of the sensor can not be guaranteed and corresponding signal can also be emitted or the use of the screwing device can be completely blocked.
  • Screwing 1701 or performed on different sensors. Further additional operating parameters which can be monitored during the operation of sensors are generally known to the person skilled in the art and need not be explained in more detail here.
  • FIG. 18 shows a flow chart of an embodiment of the method according to the invention.
  • step S1801 a rotation angle of the housing about the axis of the screw head relative to the surroundings is detected by means of a first angle measuring device.
  • step S1802 erroneous sensor data in
  • Hibernation by means of a recognizer first includes the step of detecting idle S1803. If an idle state is detected, the step follows comparing S1804 the sensor values of the first angle determination unit with predefined threshold values or, respectively, a tolerance range. If it is detected in this case that the sensor values lie outside of the toilerance range or, respectively, above a threshold value, two threshold values being able to define a tolerance range, then in step S1805 a message can be sent to the user by means of a signaling means. Also an inhibition S1806 the use of the screwing is also conceivable
  • the recognition of the idle state can be carried out here by the methods already described. Furthermore, the first angle measuring device or another sensor in the ffervorrichiung can be used by this is checked for constant output values, or constant, derived therefrom, angle signals over a defined period. Indicates e.g. the angle measuring device from a constant or nearly constant value, it is to be expected that the screwing device is at rest.
  • FIG. 19 shows a flow chart of another embodiment of the invention.
  • step S1907 the time since the last drop of the screw device is measured. If the time T exceeds a first threshold value SW1, then step S1908 follows in which a message is delivered to the user. If a second threshold value SW2 is exceeded, the use of the screwing device is inhibited in step S1909.
  • Fig. 20 shows a flow chart of another embodiment of the method. This includes the step of detecting S2011 the rotation angle ⁇ of the screw head relative to the housing.
  • the actual rotation angle ⁇ of the screw head relative to the environment is calculated from the measured rotation angle of the screw head ⁇ and the detected rotation angle of the housing ⁇ .
  • step S21 shows, as a further embodiment, a method for detecting a measurement error during use of the screwing device
  • Angle measuring device is compared in step S2219 with the threshold value. If the rotational angular velocity exceeds the threshold value, the current screw connection is rated as "Not OK.” The rotational angular velocity can be determined using the first rotational angle measuring device , so the current screwing is also rated as “Not in order”. This further increases the reliability of the system.
  • a running screw can be evaluated as "Not OK" if an error occurs during screwing, an error may be one of the previous described cases, eg exceeding a threshold or a tolerance range Users are issued and / or provided as a signal for further processing by external devices.
  • the screwing device of the embodiments is designed as a motor-driven screwing device. This may be e.g. to act electric, hydraulic, or pneumatic screwdrivers. For electrically driven
  • Screwing tools can be the power supply either by means of a battery, so-called EC cordless screwdrivers, and / or secured by a cable.
  • the cable may also be used to transmit signals to / from the externally formed components of the mounting device.
  • Mounting device can be arranged either directly in the screw or externally in an additional module. Some components can also be integrated into existing control systems for the screwing device. In this case, the control of the components of ffervorrschtung example. both microprocessor-based, computer-controlled, or in other ways known to those skilled in the art.
  • Angle screwdriver limited. Also training as a screwdriver, for. with straight drive (rod screwdriver or pistol screwdriver) is conceivable.
  • the mounting device may e.g. be used in the automotive industry in the final assembly or in the assembly of vehicle components. Another use, e.g. in the field of mechanical engineering or other areas are used in the screwing, is also conceivable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

L'invention concerne un dispositif de montage (100) et un procédé correspondant utilisant un dispositif de vissage (101) servant à serrer et à dévisser des vis au moyen d'une tête de vissage (102) et d'un boîtier (103). Au moyen d'un ensemble de détection (105) pour l'identification de données de détection erronées, des erreurs de mesure d'un dispositif de mesure angulaire (104) sont corrigées à l'état de repos, ce qui rend possible un serrage plus précis et plus fiable de vis ou d'écrous.
EP10712426.5A 2010-03-31 2010-03-31 Dispositif de montage et procédé de montage Active EP2552649B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10712426T PL2552649T3 (pl) 2010-03-31 2010-03-31 Urządzenie montażowe i sposób montażu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/054367 WO2011120579A1 (fr) 2010-03-31 2010-03-31 Dispositif de montage et procédé de montage

Publications (2)

Publication Number Publication Date
EP2552649A1 true EP2552649A1 (fr) 2013-02-06
EP2552649B1 EP2552649B1 (fr) 2015-01-21

Family

ID=43034515

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10712426.5A Active EP2552649B1 (fr) 2010-03-31 2010-03-31 Dispositif de montage et procédé de montage

Country Status (6)

Country Link
US (1) US20130199809A1 (fr)
EP (1) EP2552649B1 (fr)
CN (1) CN102834225B (fr)
ES (1) ES2534354T3 (fr)
PL (1) PL2552649T3 (fr)
WO (1) WO2011120579A1 (fr)

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WO2014170236A1 (fr) * 2013-04-16 2014-10-23 Atlas Copco Industrial Technique Ab Outil électrique
DE102013017647A1 (de) 2013-10-23 2015-04-23 Alfing Montagetechnik Gmbh Schraubmaschine
US10232497B2 (en) * 2013-12-20 2019-03-19 Atlas Copco Industrial Technique Ab Power tool for tightening a fastener and a method
JP6558737B2 (ja) * 2016-01-29 2019-08-14 パナソニックＩｐマネジメント株式会社 インパクト回転工具
US11752604B2 (en) 2018-04-13 2023-09-12 Snap-On Incorporated System and method for measuring torque and angle
JP7038378B2 (ja) * 2018-10-25 2022-03-18 Ｔｏｎｅ株式会社 電動工具
US20230278153A1 (en) * 2020-07-01 2023-09-07 Festool Gmbh Power tools including electronic safety mechanisms with supervisory circuits
DE102020122772A1 (de) 2020-09-01 2022-03-03 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zur Überprüfung wenigstens eines Betriebsparameters eines handgehaltenen motorbetriebenen Schraubwerkzeugs

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Also Published As

Publication number Publication date
PL2552649T3 (pl) 2015-06-30
EP2552649B1 (fr) 2015-01-21
WO2011120579A1 (fr) 2011-10-06
CN102834225B (zh) 2015-09-16
US20130199809A1 (en) 2013-08-08
CN102834225A (zh) 2012-12-19
ES2534354T3 (es) 2015-04-21

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