Classifications

• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
  • A41D19/00—Gloves
  • A41D19/0024—Gloves with accessories
  • A41D19/0027—Measuring instruments, e.g. watch, thermometer
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
  • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
  • A41D1/00—Garments
  • A41D1/002—Garments adapted to accommodate electronic equipment
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
  • B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
  • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
  • G01L5/0028—Force sensors associated with force applying means
  • G01L5/0038—Force sensors associated with force applying means applying a pushing force
• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
  • A41D2600/00—Uses of garments specially adapted for specific purposes
  • A41D2600/20—Uses of garments specially adapted for specific purposes for working activities
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
  • F16B2/00—Friction-grip releasable fastenings
  • F16B2/20—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
  • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
  • F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
  • F16B2031/022—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load using an ultrasonic transducer

Definitions

• the invention relates to an apparatus and a method for monitoring a
• Clip fasteners are widely used in industrial mass production in the automotive sector and the consumer goods industry For example, clip fasteners can be used to fasten trim parts, trim strips, air bag fasteners and door panels in the automotive sector Clip attachment for releasably securing a panel
• CONFIRMATION COPY on a pillar of a vehicle body known, which describes a substantially U-shaped at least partially resilient clip.
• a clip for forming a clip attachment comprises at least one mounting sleeve having a clamping leg, which is like a pushbutton connected with an example designed as a plug or socket pin (counter) element.
• a mounting sleeve having a clamping leg, which is like a pushbutton connected with an example designed as a plug or socket pin (counter) element.
• an example designed as a plug or socket pin (counter) element for mounting two components may be provided on one of the components, the mounting sleeve and on the other component of the plug.
• An assembly of two components by means of clip fastening is often performed manually.
• the connector locks when an inherent mounting force for the clip has been overcome.
• DE 103 08 403 B4 discloses a sound signal generated during the assembly of the component with the aid of a sound sensor mounted on the fitter in the hand area of a fitter. The sound signal is then converted into a measurement signal that is fed to an evaluation unit.
• the object of the invention is therefore to provide a device or a method for monitoring an assembly of two components to be connected by means of a clip fastening, which is improved with regard to the recognition of whether the clip fastening is latched.
• the core of the invention is that in addition to the detection of a sound signal and a sensor for detecting a mounting force is provided. Combining the information from sensed mounting force and detected sound allows for improved monitoring of the mounting with respect to whether the clip attachment is securely locked.
• the term "assembly” encompasses a process in industrial production which comprises the scheduled assembly of components, components and / or assemblies into products or assemblies of a higher product level “Montage” thus includes the process and not a result, so that it is also included that the clip attachment does not succeed or insufficiently.
• the indefinite article "a" having grammatical respective equivalents includes, in particular with respect to the sensor for detecting a mounting force and the sound receiver, the presence of precisely one of the elements as well as the presence of a plurality of the corresponding elements
• the number of sensors for detecting a mounting force and the number The sound receiver may be the same or different.
• Each sensor for detecting the mounting force may be associated with a sound receiver.
• component according to the invention comprises a component or an assembly which is to be fastened by means of a clip attachment to another component or assembly.
• the term "clip fastening” comprises such connections which generate a discrete sound signal, particularly preferably a click, as a discrete sound signal, in particular its sound level and duration of occurrence of the other sound signals during assembly, for example of grinding noises, which occur when the surfaces of the components to be joined rub against each other, different sound signal understood as a clip connection is particularly preferably a so-called.
• “Quick Connector” understood, in which a tubular element is clipped into a receptacle.
• clip attachment also includes a connector or other fixation element which generates the discrete sound signal in forming the connection.
• the term "sound receiver” encompasses a microphone, sensor or sounder in which acoustic signals are converted into electrical voltage.
• the underlying transducer principles can be an electrodynamic, electrostatic, piezoelectric or piezoresistive sound conversion.
• the term "sensor for detecting a mounting force” includes a force transducer with which a force can be measured. ⁇ br/> ⁇ br/> Various designs and principles of action for measuring the force in the force transducer are possible, for example, spring body force transducers, piezo force transducers, Force transducer with oscillating elements and force transducer with electromagnetic compensation known.
• assembly force also encompasses a force in which a force is applied perpendicular to the mounting direction
• the "assembly force" can also be measured as a shear force, which allows conclusions to be drawn on the success of assembly.
• the above force transducers can be used to determine the force perpendicular to the mounting direction
• a sensor for measuring a shear or a shear force can be designed as a piezo force transducer
• Such a piezoelectric force transducer can have an elongated or thread-like configuration in which an elongation of the elongate or thread-like element makes it possible to draw conclusions about the mounting force
• a shear force can also be determined by means of strain gauges or by a signal of a sensor detecting the position of a tiltable body.
• the tiltable body may be directly or indirectly in contact with one side of the clip attachment and / or a component having the clip attachment Sung as well as a strain gauge may preferably extend at an angle to the longitudinal extent of the hand of less than 90 °, in particular less than 50 °, very particularly preferably less than 45 °.
• a small angle to the longitudinal extent of the hand of less than 90 °, in particular less than 50 °, very particularly preferably less than 45 °.
• elongated or thread-like in the context of the invention, the formation of a thin and flexible sensor compared to a length.
• the senor for detecting a mounting force and / or the sound receiver are arranged on a glove, so that an operator performing the assembly can carry the device without much effort.
• a glove used by the operator performing the assembly can be used with the
• Sensor for detecting a mounting force and a sound receiver are designed according to the invention.
• the term “glove” encompasses the garment that completely or partially covers the hand.
• the term glove also includes an X-finger
• Glove in which X-fingers are at least partially covered where X is a natural number is less than 6.
• the thumb of a hand is understood as a finger.
• the at least partial covering of a finger can be present in the area of the fingertip and / or in a joint region of the finger and / or on the side of the finger.
• the glove has at least one finger portion which at least partially surrounds a finger, the sensor for detecting a mounting force being arranged in the region of the finger portion which surrounds the finger.
• the sensor for detecting the mounting force is disposed on the side of the glove facing the inside of the finger of the operator's hand. It can also be provided that the sensor for detecting the mounting force is arranged on the side of the glove, which faces the outside of the finger of the hand of the operator.
• the location of the attachment of the sensor for detecting the mounting force is particularly preferably in response to the hand, or finger movement, with which the user creates the clip connection, in particular at the location of the expected force flow from the user's hand through the glove on the Component. It can be provided for several fingers per one or more sensor (s) for detecting the mounting force.
• the finger portion is the portion of the thumb, wherein the sensor for detecting the mounting force is arranged in the region of the thumb portion which at least partially surrounds the frontal tip of the thumb.
• the sensor for detecting the mounting force is preferably arranged on the side of the glove which faces the inside of the thumb of the hand of the operator.
• the senor for detecting the mounting force is arranged in the glove, so that the sensor for detecting the mounting force is protected by means of the surrounding glove and does not rest on a surface which is exposed on the glove.
• the glove has a portion in which two finger portions, both provided to at least partially surround a finger, meet.
• the sound receiver is arranged in the section in which the two finger sections meet.
• the sound receiver is thus arranged in an area to which no mechanical pressure for training the mounting of the clip attachment is exercised; However, the sound receiver is still sufficiently close to the trainees Clipbefest Trent available.
• the fact that the sound receiver is arranged in a region between two finger sections, the sound receiver is also protected when the user performs, for example, with his hand a different activity than the assembly of the two components.
• the device is suitable for mounting two components to be connected by means of a clip connection.
• the device may also include an acceleration sensor.
• an acceleration sensor which is preferably also arranged on the glove of an operator performing the assembly, has the advantage that the acceleration or movement of the operator, at the portion against which the acceleration sensor is applied, is determined and / or recorded during assembly can.
• it may be that the determination of the quality of the formation of the clip fastening by a shielding of the clip or a low sound signal (locking noise) is difficult, but by means of an evaluation of the signal of an acceleration sensor conclusions on the quality of the assembly are possible.
• an acceleration sensor arranged on the glove on which the sound receiver and the sensor for detecting an assembly force are arranged, the acceleration and also the movement of the hand or of a finger can be determined.
• a correct or successful formation of a clip attachment can cause a predetermined acceleration behavior or acceleration signal of the acceleration sensor on the hand of the operator.
• a comparison of the predetermined acceleration signal with the actual acceleration signal determined during assembly can be used in order to be able to conclude the reliable mounting of the clip fastening.
• the signals of the sensor for detecting a mounting force, the sound receiver and the acceleration sensor can be combined and correlated with one another. For example, the signal of the sound receiver can be disregarded if the determination of a signal thereof in the formation of a certain clip attachment does not play a significant role.
• the acceleration sensor can be arranged on a finger, the back of the hand and / or the palm of a glove and determine the acceleration of the finger, back of the hand or the palm of the operator.
• acceleration sensor in the sense of the invention comprises an inertial sensor with which accelerations can be measured Acceleration sensors are available and applicable as simple and inexpensive sensors.
• acceleration sensor can be used synonymously with any of the terms motion sensor, accelerometer, accelerometer, accelerometer, B-meter or G-sensor.
• the invention also provides a method for monitoring an assembly of two components to be connected by clip fastening, wherein the two components are brought together to perform the assembly by means of clip fastening.
• the force applied to at least one of the two components is measured by means of a device used to connect the two components.
• the sound generated during assembly of the two components is measured.
• the method may also be performed with two or more devices to monitor, for example, multiple clip fasteners during assembly of the components, or to monitor assembly of a clip fastener to both components.
• the course of the measured force is preferably recorded as a function of time and / or the course of the measured sound is recorded as a function of time, resulting in the possibility of quality assurance of the assembly.
• the data can be recorded.
• the data from a previous assembly operation may still be stored while the current assembly operation is being performed by the operator.
• a stored, possibly the previous assembly process associated period can for example also be assigned to the current assembly process, if it results in a signal analysis that the current signal is incomplete, for example, has shifted the evaluation window.
• the length of the time window for the detection of a mounting operation can be adapted and particularly preferably in the range of 200 ms to 500 ms, preferably 300 to 450 ms, particularly preferably 350 to 420 ms.
• the senor for detecting a mounting force has a sampling frequency of 50 kHz over a time window of 400 ms. There are thus 20,000 samples within the time window possible.
• the course of the force as a function of the time and / or the course of the sound as a function of time is evaluated and generates a signal indicating a quality of the assembly of the clip fastening, if the Course of the force as a function of time and / or the course of the sound as a function of time corresponds to one or more predetermined criteria.
• Possible criteria can be a detected local or absolute maximum of the assembly force, a detected local or absolute minimum of the assembly force, detection of a mounting force plateau, evaluation of the course of the determined assembly force as a function of time (for example, mathematical derivation with a determination of the slope), detected local or absolute maximum of the sound, detected local or absolute minimum of the sound, detecting a plateau in the sound detected, evaluation of the course of the detected sound as a function of time (for example mathematical derivation with a determination of the slope) and / or a correlation of the aforementioned criteria be.
• a criterion of whether the assembly was successful i. the clip fastener is securely locked, that the amplitude of the signal of the sound receiver exceeds a predetermined threshold.
• a criterion of whether the assembly was successful, i. the clip attachment is securely locked be that the maximum of the sound signal (peak) exceeds or exceeds a predetermined width.
• a criterion of whether the assembly was successful, i. the clip attachment is securely locked be that a predetermined number of maxima of the sound signal within a time window is not exceeded.
• a criterion of whether the assembly was successful, i. the clip attachment is securely locked be that a correlation between the detected mounting force and the sound signal is present such that the detected mounting force decreases in time near the maximum of the sound signal, for example, forms a local minimum.
• a criterion of whether the assembly was successful, i. the clip fastener is securely locked is that there is a local minimum assembly force that is less than a predetermined percentage of the mounting force (eg, 85%) before or after the peak of the sound signal.
• a criterion of whether the assembly was successful, ie the clip attachment is securely latched may be that the assembly force has a predetermined value and / or a predetermined rise before the sound signal determined for the assembly.
• a criterion of whether the assembly was successful, ie the clip attachment is securely latched may be that the determined assembly force, even after the detection of the sound signal detected for the mounting, is at a level higher than before detection of the sound signal for the installation determined sound signal.
• the signal generated by the sensor for detecting a mounting force and the sound receiver is processed by means of a signal equalizer and / or a digital low-pass filter.
• FIG. 1a, b a device according to the invention in a schematic illustration
• FIG. 1 shows a device which is suitable for mounting two by means of one
• FIG. 1a shows the glove 1 in the region of the back of the hand and FIG. 1b the glove 1 in the region of the palm of the hand.
• a sensor 2 for detecting a mounting force is arranged on the thumb inside.
• the signal generated by the sensor 2 for detecting a mounting force is guided by means of a line 3 from the sensor 2 for detecting a mounting force to a receiving unit.
• a sound receiver 4 is arranged on the outer surface in the region of the tip of the thumb or the index finger on the outside of the glove 1.
• the signal generated by the sound receiver 4 is supplied by means of a line 5 to an evaluation unit.
• Fig. 2 shows a schematic representation of the device according to the invention in a glove 1, in which sensors 2 for detecting the mounting force and a sound receiver 4 are arranged, wherein Fig. 2a shows the glove 1 in the region of the back of the hand and Fig. 2b, the glove 1 in the area the inside of the hand shows.
• Sensor 2 for detecting the mounting force formed on the middle finger is as thread-shaped piezoelectric element is formed and extends in the longitudinal direction of the hand or the fingers of the hand. With the sensor 2, the mounting force can be determined in the form of a torsional or shear force.
• an acceleration sensor 6 is formed, whose
• Signal is guided by means of a line 7 to a receiving unit.
• the signal of the acceleration sensor can be evaluated.
• a correlation with the signal of the sensor 2 and / or the signal of the sound receiver 4 can be performed.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Textile Engineering (AREA)
• General Physics & Mathematics (AREA)
• Analytical Chemistry (AREA)
• Physics & Mathematics (AREA)
• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Biophysics (AREA)
• Force Measurement Appropriate To Specific Purposes (AREA)
• Automatic Assembly (AREA)
• Gloves (AREA)
• Measuring Fluid Pressure (AREA)
• Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=54843786

Family Applications (1)

Country Status (7)

Families Citing this family (10)

Citations (1)

Family Cites Families (12)

• 2014
  • 2014-11-04 DE DE102014016153.6A patent/DE102014016153A1/de not_active Withdrawn
• 2015
  • 2015-11-02 JP JP2017543873A patent/JP2017537244A/ja active Pending
  • 2015-11-02 US US15/523,978 patent/US20180263314A1/en not_active Abandoned
  • 2015-11-02 WO PCT/EP2015/002196 patent/WO2016070984A1/de active Application Filing
  • 2015-11-02 CN CN201580059867.7A patent/CN107107285A/zh active Pending
  • 2015-11-02 BR BR112017009362A patent/BR112017009362A2/pt not_active Application Discontinuation
  • 2015-11-02 EP EP15807791.7A patent/EP3216090A1/de not_active Withdrawn

Patent Citations (1)

Also Published As

Similar Documents

Legal Events