EP1469958A1 - Outil de pose equipe de systemes de controle de processus de pose - Google Patents

Outil de pose equipe de systemes de controle de processus de pose

Info

Publication number
EP1469958A1
EP1469958A1 EP03729464A EP03729464A EP1469958A1 EP 1469958 A1 EP1469958 A1 EP 1469958A1 EP 03729464 A EP03729464 A EP 03729464A EP 03729464 A EP03729464 A EP 03729464A EP 1469958 A1 EP1469958 A1 EP 1469958A1
Authority
EP
European Patent Office
Prior art keywords
setting tool
tool according
rivet
setting
head piece
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
EP03729464A
Other languages
German (de)
English (en)
Other versions
EP1469958B1 (fr
Inventor
Antonin Solfronk
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.)
MS Geraetebau GmbH
Original Assignee
MS Geraetebau 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
Priority claimed from PCT/EP2002/010914 external-priority patent/WO2003059550A1/fr
Priority claimed from DE10248298A external-priority patent/DE10248298A1/de
Priority to CZ2004-878A priority Critical patent/CZ305122B6/cs
Priority to AT03729464T priority patent/ATE416050T1/de
Application filed by MS Geraetebau GmbH filed Critical MS Geraetebau GmbH
Priority to PL370677A priority patent/PL205309B1/pl
Priority to ES03729464T priority patent/ES2318136T3/es
Priority to EP08010225A priority patent/EP1992429A1/fr
Priority to SK302-2004A priority patent/SK3022004A3/sk
Priority to EP03729464A priority patent/EP1469958B1/fr
Priority to CN03804953A priority patent/CN100595001C/zh
Publication of EP1469958A1 publication Critical patent/EP1469958A1/fr
Publication of EP1469958B1 publication Critical patent/EP1469958B1/fr
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/28—Control devices specially adapted to riveting machines not restricted to one of the preceding subgroups
    • B21J15/285—Control devices specially adapted to riveting machines not restricted to one of the preceding subgroups for controlling the rivet upset cycle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/04—Riveting hollow rivets mechanically
    • B21J15/043—Riveting hollow rivets mechanically by pulling a mandrel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/105—Portable riveters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/28—Control devices specially adapted to riveting machines not restricted to one of the preceding subgroups

Definitions

  • the invention relates to a setting tool with means for
  • DE 44 01 134 describes a method in which a force component is measured over the path of the stroke and compared with a target curve. This is to check whether the setting process has been carried out correctly.
  • EP 0 738 551 discloses a device for checking the setting of blind rivets.
  • the tensile force and the position of the traction shank are measured here.
  • the converted energy is determined via an integrator and compared with a setpoint.
  • a disadvantage of these known means for checking the setting process is that although it can be determined with a certain probability whether the setting process is within a given tolerance limit, the cause of an error cannot be determined.
  • a whole series of errors can occur during a setting process. For example, errors by the operator, for example due to the setting tool being tilted incorrectly, too large bores, incorrect rivets, Defects in the rivet itself. With blind rivets there is always the risk that the rivet only grips the part to be fastened, but not the counterpart.
  • the object of the invention is to provide a setting tool that monitors the setting process and also detects the cause of an error that occurs. In addition, it is an object of the invention to enable comprehensive control over various parameters of a setting process.
  • a setting tool with a head piece in particular for receiving the rivet, a device for gripping and / or pulling and a pulling device connected to the device for gripping and / or pulling is provided, which means for measuring the size values occurring during the setting process, a device for Comparison of the measured values with stored values and a device for
  • the setting tool which can be of various types, for example rivet setting tools " , blind rivet nut setting tools, locking ring setting tools, has sensors. By means of the sensors, various parameters such as position of the pulling device, time since the start of the setting process or the tension applied are measured. These measured values are measured.
  • the stored values contain not only a target curve, which, if not followed, leads to an incorrect setting process, but also values for certain errors.These values can be used as mere individual values, but also as a target curve with various parameters that unite describe certain errors.
  • the amount of stored causes of errors includes at least one cause of errors, which may be sufficient for some applications.
  • the setting tool is pre-programmed for a very specific setting process, which is defined, for example, by the rivet used, the material used and its thickness. Programming on several - different setting processes is also conceivable.
  • the invention makes it possible to eliminate the cause of the error as quickly as possible. Since operating errors are also detected with the invention, the setting tool is also extremely suitable for untrained operators. The quality of each setting process can be controlled by the invention. This is of great advantage, for example, in aviation technology. There are sometimes used rivets that have undergone an X-ray inspection. If he
  • the measured size values have the tensile stress exerted by the pulling device and / or the position of the pulling device and / or the time since the start of the respective setting process and / or the angle to the surface on which the setting tool is applied.
  • Using these values is a comprehensive fault diagnosis possible. This can also be done by converting the values into curves or multi-dimensional maps.
  • the device is checked whether the device is positioned at the correct angle.
  • the operators often do not place the setting tool exactly at a right angle. This leads to a reduction in the strength of the connection. It is also advisable to check whether the wrong rivet has been used.
  • rivets that do not differ optically, but are made of a different material and therefore have a completely different strength. This can be done, for example, by the course of the tensile stress exerted by the pulling device.
  • Another embodiment checks whether the rivet is damaged. For example, material defects in the rivet lead to a different force curve. Another embodiment checks whether the bore provided for the rivet is too wide or too narrow.
  • the riveting tool according to the invention can also be used to easily determine whether a rivet is in the device, for example by measuring the tension applied. It is particularly useful to check whether the rivet grips both parts to be connected. With blind rivets in particular, it often happens that the rivet does not catch both parts to be connected. The operator cannot control this himself because he only sees the part to be fastened, but not the other side. If the rivet only grips the part to be set, the tension exerted by the pulling device increases later, or with a larger stroke. So the error can be easily determined.
  • the setting tool it is monitored whether the setting tool has a defect.
  • the oil level in the drawbar may be too low his.
  • the pulling device becomes stiff and no longer works with the intended pulling force.
  • several of these error causes are programmed into one device.
  • the device can be programmed by carrying out a series of tests in which deliberate errors are made. The deviations of the measured values occurring with the respective errors can then be stored in the device in order to be compared with later measured values. It is also conceivable not only to carry out a pure error check, but also to compare the deviation of a setting process that is still within the respective tolerance range with an ideal value.
  • a preferred embodiment of the invention has a device for measuring the position of the pulling device and / or for measuring the pulling tension exerted by the pulling device.
  • the position of the pulling device and the tension applied are two of the most important parameters that can be used to determine a whole range of error causes.
  • the tensile stress exerted by the pulling device is measured with a strain gauge.
  • a strain gauge for measuring stresses is reliable and cheap.
  • the tension is essentially proportional to the pulling force exerted by the pulling device.
  • the device for measuring the tension exerted by the pulling device has a piezoelectric sensor. This piezoelectric sensor does not require a voltage supply.
  • An expedient embodiment of the invention has a capacitive sensor for measuring the position of the pulling device on. Such a capacitive sensor is much more precise than frequently used optical sensors.
  • the angle to the surface on which the setting tool is attached is measured by means of at least three sensors arranged on the tool head. These sensors touch the surface on which the device is attached when it is attached at a right angle. A common mistake by the operator can thus be diagnosed.
  • the setting tool has means for data storage and / or further processing.
  • the measured values can be statistically evaluated.
  • the user can control exactly how many setting operations were made, how many of them were incorrect and what were the causes of errors.
  • the function of its devices can be monitored by the manufacturer of the tool. It is also conceivable that it is not the tool itself that is paid for, but that the tool
  • Manufacturer provides the tool to the customer and that the customer then pays, for example, according to the number of setting operations carried out. For the granting of a manufacturer's guarantee, too, it is extremely advantageous if the manufacturer can identify potential faults by the tool itself and, if necessary, exclude them.
  • the means for data storage and further processing can be reset, in particular when servicing the device. So for example, the device can be returned to the customer like a new device after the reset.
  • An expedient embodiment of the invention has a chip for comparing measured and stored values and / or for data storage and further processing.
  • a chip can be tailored precisely to the requirements of the device. Furthermore, the smallest possible size is possible. Compared to EPROMS that can also be used, the chip also has the advantage that it is much more difficult to manipulate.
  • the setting tool expediently has a counter which counts rivet setting cycles and / or errors and / or causes of errors.
  • a statistical error evaluation is already possible with the device itself.
  • the setting device has a device for date and / or time detection, so the setting processes and possible errors can be assigned to a specific point in time. In retrospect, it is understandable when and therefore often where exactly one specific error happened.
  • a further development of the invention has a device for transmitting measured values to an external unit.
  • a computer system for example, is conceivable as an external unit, via which the measured values supplied by the setting device can be stored and evaluated further.
  • the individual setting tools could, for example, be assigned to the system via their device numbers.
  • the device for transmitting measured values expediently comprises a device for transmitting infrared, ultrasound or radio signals, in particular “bluetooth”.
  • a device for transmitting infrared, ultrasound or radio signals in particular “bluetooth”.
  • Bluetooth for example, there is a cheap and reliable standard component for wireless transmission with bluetooth technology.
  • the external unit can include a mobile radio terminal. This enables wireless transmission even over long distances, for example to the manufacturer of the setting tool.
  • the setting tool has a device for switching off the rivet setting device and / or displaying the cause of the error, "unresponsive to a signal generated in the event of a faulty rivet setting process.
  • a setting process may not even occur to be carried out if an error is indicated from the start. If the device is not positioned at a right angle, it does not trigger at all. Also if there is no rivet in the device. Even if only the component to be fastened is detected when a blind rivet is placed, it is still possible to abort the setting process by displaying the cause of the error.
  • the signal to be generated by an external unit, for example a connected computer.
  • the setting tool can also include a device for connection to a local network, as a result of which the data can be transmitted and processed quickly.
  • a device for connection to a local network as a result of which the data can be transmitted and processed quickly.
  • the pulling device of the setting tool can be operated electrically, in particular with a rechargeable battery, electro-hydraulically, hydraulically or hydropneumatically. It is also possible to provide a completely wireless device with a battery and wireless data transmission.
  • the setting device has a line for supplying compressed air or current and at least one further line for transmitting the measured values, and the further line together with the one line a strand with a Anschlus "s. This means that no two lines need to be connected for energy supply and data exchange. It is conceivable to provide a combination plug with, for example, a compressed air line and adjacent lines for data transmission.
  • the setting tool carries out a test cycle after switching on. In this way, errors that affect the device can be ruled out before use. For example, to check whether. the tool is mechanically correct, the Pulling device can be automatically moved back and forth after switching on. If the pulling device is stiff, the tool indicates the error.
  • the object of the invention is further achieved by a method for controlling setting processes, in particular riveting processes, according to the features of claim 28. Then a part to be set is inserted into a setting device, preferably a setting device according to the preceding claims, then a tensile force is exerted on the part to be set by a pulling device.
  • a setting device preferably a setting device according to the preceding claims
  • the values occurring during the setting process are measured.
  • the values measured in this way are compared with stored values. Finally, on the basis of this comparison, the cause of a deviation of measured values from stored values from a set of stored causes is determined.
  • the invention according to the features of claim 38 relates to a head piece for a setting tool with means for measuring the size values occurring during the setting process, with a device for comparing the measured values with stored values and with a device for determining the cause of the deviation of the measured from stored value from a set of stored causes "
  • This head piece fulfills the task according to the invention as well as the setting tool.
  • a head piece makes it possible to equip an existing setting tool with the functions according to the invention.
  • the invention further relates to a setting tool with a piezo sensor and a method for setting parts to be set, preferably rivets, in particular a device and a method for setting rivets with tension measurement, and a head piece for a Setting tool.
  • Rivet connections are used in a variety of ways in industrial production for joining components. Especially in the automotive and
  • Known rivet setting tools set rivets with preset parameters, such as the tensile force to be used.
  • a rivet setting process using such a device may also achieve an optimal result, however, deviations from the target parameters that influence the strength of the connection are not recognized. This is particularly important since a defective rivet connection can give the appearance of a correctly placed blind rivet or a rivet nut when checked externally. Such faulty connections have a negative impact on the quality of the assemblies manufactured with them and can even have fatal consequences in safety-sensitive areas such as aircraft construction.
  • a rivet setting device is known from EP 0 454 890, which is provided with a force measuring device which ensures that the rivet setting tool works with a predetermined tensile force.
  • the force measuring device has a strain gauge.
  • a disadvantage of such a strain gauge is that a voltage supply is necessary for this and that the strain gauge does not automatically convert the tensile force into a voltage signal.
  • the object of the present invention is therefore to provide improved control of rivet connections when riveting. This object is already achieved in a surprisingly simple manner by a setting tool according to claim 60, as well as a method for setting according to claim 77 and a head piece for a setting tool according to claim 82. Advantageous further developments are given in the respective dependent claims.
  • a rivet processing tool in particular a rivet setting tool with a head piece for receiving in particular a rivet, a device for gripping and / or pulling in particular a rivet pin and a pulling device connected to the device for gripping and or pulling in particular a rivet pin is provided, which additionally has at least one piezoelectric Has comprehensive device for measuring the tension of the traction device.
  • the device for measuring the tension of the pulling device By means of the device for measuring the tension of the pulling device, its measured values can be determined and evaluated. It has been shown that a measurement of the tensile stress curve during a rivet setting cycle provides detailed information about the rivet setting process and, in particular, faulty rivet setting processes can be determined using the tensile stress curve.
  • the piezoelectric sensor used to measure the tensile stress is inexpensive, provides exact measured values and can be accommodated in the smallest space. Such a sensor also delivers
  • the invention is suitable for all types
  • Rivet processing and setting tools for example - also rivet setting tools, blind rivet nut setting tools, locking ring setting tools etc.
  • the current position of the pulling device can advantageously be determined via a device for measuring the position of the pulling device, such as a displacement sensor, so that tension-displacement-value pairs can be evaluated.
  • the tensile stress can be measured in a simple manner indirectly by means of a pressure sensor which, for example, measures the counterforce exerted on the pulling device on a part of the rivet setting tool.
  • Hydraulically operated traction devices are particularly advantageous for industrial applications, with which fast setting cycles with reproducible setting parameters can be carried out.
  • the invention also includes electrical, electrohydraulic and hydropneumatic pulling devices.
  • a wireless device with an integrated battery is particularly advantageous.
  • a corresponding device can advantageously be accommodated in the setting device for the detection and evaluation of the device for measuring the tension of the pulling device.
  • a counter can be accommodated in the setting tool, which counts setting cycles. Maintenance intervals can be monitored, for example, with a counter that records the number of setting cycles carried out on the basis of the tensile stress measured values.
  • the counter can be used to check whether rivets have been left out, particularly in the case of large assemblies with a large number of rivets.
  • the device for evaluation and recording can also include a date and / or time recording device. For example, warranty periods and maintenance periods can be checked by entering the date.
  • the device can thus be set up, for example, to start the date acquisition after a certain number of rivet setting cycles, so that, for example, before the start of the
  • Date acquisition trial cycles can be performed. With an additional recording of the time, it can be tracked, for example, when faulty rivets were set.
  • the tensile stress measured values and / or the counter readings can also be transmitted to an external unit via a corresponding device for transmitting tensile stress measured values.
  • This unit can be, for example, a computer for data evaluation and / or control.
  • the signal transmission can advantageously be accomplished with a device for transmitting infrared, ultrasound or radio signals.
  • the data can also be transmitted to a mobile radio terminal device via a mobile radio network. This enables data to be transferred directly to a maintenance department or the manufacturer, for example, for remote diagnostics if the device malfunctions. The manufacturer can also use this to check whether the required maintenance intervals have been observed.
  • the means for gripping comprises a rivet pin also clamping jaws which are operated via a feed shaft connected to a feed. The tension is transmitted via a tension spindle.
  • the setting device can also be provided with a device for connection to a local network for rapid distribution of the data to a number of external evaluation units.
  • the method provides for a part to be set to be introduced into an opening provided for this purpose and then for the setting of the part to be set to exert a pulling force on the part to be set, preferably the rivet pin by means of a closing device, at least one being applied during the application of the pulling force
  • Measured value is obtained, which is caused or influenced by the tensile force applied to the rivet pin.
  • the measured value can be obtained at a predetermined point in time or stroke of the pulling device and can thus provide information about any rivets that are not optimally placed.
  • the invention relates to a head piece for a setting tool, which comprises a device comprising at least one piezoelectric sensor for measuring the tension exerted by the pulling device.
  • This head piece corresponds in its function to the solution of the object according to claim 60, with the
  • the difference is that the device required to measure the tensile stress is completely integrated into the head piece with a piezoelectric sensor. It is thus possible to provide a head piece with the function according to the invention for an existing setting tool. That has the
  • the head piece can be provided with corresponding connections for setting tools from different manufacturers.
  • the head piece according to the invention "benefits from the advantage that the piezo sensor does not require a voltage supply.
  • the invention relates to a rivet.
  • the setting device according to the features of claim 1 is dependent on a uniformity of the setting processes when comparing measured values, such as the tensile stress at a specific point in time of the setting process.
  • the main disadvantage is rivets with different properties. Are the properties, for example, due to different materials or due to very different manufacturing tolerances, the device cannot be optimally programmed. Then the tolerance limit for a setting process must also be increased, which in turn is disadvantageous for an optimal setting result.
  • the object of the invention was therefore also to provide a rivet which has essentially constant properties.
  • the tensile stress is applied to the rivet pin of a blind rivet.
  • rivets that do not lie in a predetermined tolerance range are sorted out. Sorting can be done automatically by the control device.
  • rivets that lie within a predetermined tolerance range are permanently marked. The quality check carried out is visible on the rivet. This prevents confusion with rivets that have not been tested.
  • Fig. 1 is a schematic view of a first
  • FIG. 2 graphs of tensile stress as a function of time
  • FIGS. 3A to 3D different embodiments of external
  • FIG. 4 shows a schematic cross-sectional view through an embodiment of the invention
  • FIG. 5 shows a schematic view of a head piece of a setting device with sensors
  • FIG. 6 graphs of the tensile stress of different seedlings as a function of time.
  • the rivet setting process which means the setting of a rivet.
  • the rivet setting described here includes the setting of blind rivets, rivet nuts and in particular also the setting of locking ring bolts, even if this is no longer expressly mentioned. " So far for the respective.
  • Embodiment another headpiece, mouthpiece, chuck or another receptacle is necessary, a specialist in this field can make appropriate adjustments to the current requirements.
  • the rivet setting tool 1 comprises a head piece 2 with adjusting nut 22 for receiving a rivet 20, a body part 6, and a handle 16.
  • a pulling device is triggered inside the rivet setting device, which is connected to a device for gripping the shaft or rivet pin of the rivet 20, so that the pin is pulled into the device.
  • the device for gripping the shaft or rivet pin preferably comprises a chuck with two or more clamping jaws.
  • the pulling device is supported on the head part 2 of the rivet setting device, so that the tensile stress exerted on the rivet pin is translated into a pressure exerted between the head part and the pulling device
  • Head part 2 is a sensor unit 3, preferably with a piezoelectric sensor, which measures the pressure generated between head part 2 and pulling device when the rivet pin is pulled.
  • the sensor generates a tension signal which is essentially proportional to the tension.
  • This voltage is either transmitted directly via a cable 8 to an external device 12 for recording and evaluating tensile stress measured values or initially amplified by the sensor unit, the amplified signal then being transmitted.
  • a separate evaluation electronics 15 can also be accommodated on a part 14 attached to the handle, which includes, for example, counter electronics with date and / or time function.
  • the transmission to an external evaluation unit can also take place via corresponding devices for the transmission and reception of infrared, ultrasound or radio signals.
  • the rivet setting device can also be set up to transmit the signals to a terminal device via a mobile radio network, as a result of which large distances can be reached between the rivet setting device and the external evaluation unit.
  • the rivet setting device 1 also has a displacement sensor 4, which determines the current position of the pulling device via a device for measuring the position of the pulling device and sends a corresponding signal to the external device 12 via a cable connection 10.
  • the displacement sensor can, for example, be an optical-electronic or an inductive displacement sensor.
  • Eig. 2 shows graphs of tensile stress as a function of time over the course of rivet setting cycles.
  • Graph 100 shows the typical course of the tension under optimal conditions and shows a minimum of the tension. The rivet head is compressed to this minimum by the tensile force exerted by the pulling device of the rivet setting device. Then the tractive force continues to increase until the rivet pin leaves and the tensile stress drops abruptly to zero.
  • the graphs 101, 102 and 103 show curves of the tensile stress under non-optimal conditions.
  • Graph 101 shows the course of the tension when the hole diameter is too large. In this case the minimum between the two maxima is not as deep as in the optimal case and at a later time. Until the pin is torn off, if the hole diameter is too large, a higher tensile stress must also be applied and the tearing off takes place at a somewhat later time.
  • Graph 102 shows the course of the tensile stress when a rivet is not fully inserted into the hole and Graph 103 shows a riveting process without material, ie without the rivet being inserted into a hole in a sheet. In both cases, the minimum of the tensile stress, as well as the time at which the pin was torn off, was compared at a later time with the curve under optimal conditions.
  • FIGS. 3A to 3D show embodiments of external devices for recording and evaluating tensile stress measurement values of the invention.
  • an evaluation unit 24 is shown schematically, which is connected via a cable connection 8 to the sensor unit 3 of the rivet setting device 1. Instead of the cable connection 8, the sensor unit and the
  • Evaluation unit can also be connected to one another via a transmitting / receiving device for infrared, ultrasound or radio signals, the sensor being correspondingly equipped with a transmitter and / or receiver.
  • the evaluation unit 24 comprises an LCD display 26 and operating elements 28. Current results of measurements, such as, for example, the maximum tensile stress achieved, are shown on the LCD display. The measurement and evaluation results are determined by means of suitable measuring electronics in the unit 24. Various functions, such as performing a reference measurement, threshold values for warning messages or resetting the current measured values, can be entered via the control elements.
  • 3B shows an extension of this system, a printer 32 being connected to the evaluation unit 24 via a cable connection 30.
  • Current measurement results and further data can be output via the printer 32.
  • the printer can be operated using the controls 28 can be controlled.
  • 3C shows an embodiment in which the measured values of the sensor unit 3 of the rivet setting device are transmitted to a computer 34 as an evaluation unit via a cable connection 8.
  • the computer preferably a workstation computer, can be provided with a suitable plug-in card in which evaluation electronics for the transmitted voltage measurement values are accommodated.
  • the voltage measurements are carried out using a
  • ADC modules are digitized at regular intervals and can then be further processed with suitable software. The processed measurement data and evaluation results are then displayed on the screen 36 of the computer.
  • Eig. 3D shows a further embodiment in which a plurality of rivet setting devices are connected to an evaluation unit 38 via cable connections 81, 82, 83 and 84.
  • the embodiment is shown in FIG. 4 as an example for four rivet setting tools.
  • this structure can be extended to any number of devices.
  • the structure can also be used for a single rivet setting tool.
  • Each rivet setting device is connected via the cable connections to one of the blocks 381 to 384 of the evaluation unit 38.
  • the evaluation unit 38 is in turn connected via a connection 40 to a network node 42, from which the data can be distributed to a plurality of computers 341 to 344.
  • FIG. 4 shows a schematic cross-sectional view through an embodiment of the invention, on the basis of which the principle of tension measurement can be explained.
  • a hydraulic cylinder 50 is located in the fuselage part 6.
  • a hydraulic piston 52 runs on the cylinder 60, to which a tension spindle 54 is fastened, which acts on the force exerted by the piston attached chuck 56 transmits. If a force is exerted by the piston in the direction of the arrow by pressing a suitable hydraulic fluid into the cylinder section 51, the clamping jaws 58 are first compressed by the returning chuck 56 until a rivet pin located between them is gripped and clamped. The clamping jaws then pull the rivet pin further into the head part 2 of the rivet setting device until it tears off from the rivet head approaching the adjusting nut 22.
  • the piston can also be operated hydropneumatically, with the hydraulic fluid being pressed into the hydraulic cylinder 50 via a further, pneumatically operated piston, which can be accommodated, for example, in the part 14 shown in FIG. 1 and attached to the handle
  • the head part 2 is fastened to the body part 6 in such a way that the pressure is not transmitted directly to the sleeve of the head part 2, but rather via a piezoelectric material part 31 located between the head and body parts. A resulting piezo voltage can then be transmitted to a suitable connector 64 by means of the electrical connections 60 and 62.
  • the pressure sensor can also be used with a suitable measuring and; Evaluation electronics that are integrated in the rivet setting device itself.
  • FIG. 5 shows a schematic top view of a head piece for a setting tool according to the invention.
  • the adjusting nut 22 of the head piece 2 can be seen.
  • Three sensors 70 are attached around the adjusting nut 22. When the device is attached, all three sensors only touch the part to be fastened if the device is at right angles to the part to be fastened. So it is possible to check whether the operator makes a mistake. If the device is not positioned at a right angle, electronics ensure that the device is blocked, so that the setting process cannot be started.
  • FIG. 6 shows four graphs in which the tensile stress exerted is plotted against time during a setting process, the x-axis indicating the time and the y-axis indicating the force.
  • Graph 90 shows the force-time curve when inserting a rivet nut.
  • the force initially rises sharply in the elastic range, passes into the plastic range. and remains approximately constant until the end of the setting process.
  • Graphs 91, 92 and 93 show the force-time curve for various blind rivets.
  • the force also increases in the area of plastic deformation until the rivet pin tears off and the force drops to zero. You can see that the force-time curves are very different for different rivets. It is therefore necessary to program the device for certain setting processes. On the basis of deviations from these curves, a number of

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Golf Clubs (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

L'objectif de la présente invention est d'améliorer le contrôle d'assemblages rivetés lors de la pose de rivets. A cette fin, l'appareil de pose selon cette invention comprend un outil de pose de rivet (1) présentant une tête (2) conçue pour accueillir un rivet (20), un système conçu pour prendre une tige de rivet, ainsi qu'un dispositif de traction qui est relié au système conçu pour prendre la tige de rivet et qui présente un système conçu pour mesurer la tension de traction du dispositif de traction. L'appareil de pose (1) selon cette invention permet de pouvoir déterminer la cause d'une erreur par comparaison de valeurs mesurées avec des valeurs enregistrées.
EP03729464A 2002-01-21 2003-01-16 Outil de pose equipe de systemes de controle de processus de pose Expired - Lifetime EP1469958B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CN03804953A CN100595001C (zh) 2002-01-21 2003-01-16 安装工具及其头盖以及用于检验安装过程的方法
EP03729464A EP1469958B1 (fr) 2002-01-21 2003-01-16 Outil de pose equipe de systemes de controle de processus de pose
CZ2004-878A CZ305122B6 (cs) 2002-01-21 2003-01-16 Vsazovací nástroj a způsob kontroly vsazovacích procesů pro tento nástroj
PL370677A PL205309B1 (pl) 2002-01-21 2003-01-16 Narzędzie do osadzania ze środkami do kontroli operacji osadzania, głowica dla narzędzia do osadzania oraz sposób kontroli operacji osadzania, zwłaszcza operacji osadzania nitów, a także sposób kontroli nitu, zwłaszcza dla narzędzia do osadzania
ES03729464T ES2318136T3 (es) 2002-01-21 2003-01-16 Herramienta de colocacion de piezas con medios de control de operaciones de colocacion.
EP08010225A EP1992429A1 (fr) 2002-01-21 2003-01-16 Outil de pose doté de moyens de contrôle du processus de pose
SK302-2004A SK3022004A3 (en) 2002-01-21 2003-01-16 Placing tool with means for controlling placing processes
AT03729464T ATE416050T1 (de) 2002-01-21 2003-01-16 Setzwerkzeug mit mitteln zur kontrolle von setzvorg ngen

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE10202230 2002-01-21
DE10202230 2002-01-21
PCT/EP2002/010914 WO2003059550A1 (fr) 2002-01-21 2002-09-28 Outil de pose comportant un dispositif de mesure de contrainte de traction
WOPCT/EP02/10914 2002-09-28
DE10248298A DE10248298A1 (de) 2002-01-21 2002-10-16 Setzwerk mit Mitteln zur Kontrolle von Setzvorgängen
DE10248298 2002-10-16
EP03729464A EP1469958B1 (fr) 2002-01-21 2003-01-16 Outil de pose equipe de systemes de controle de processus de pose
PCT/EP2003/000380 WO2003059551A1 (fr) 2002-01-21 2003-01-16 Outil de pose equipe de systemes de controle de processus de pose

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP08010225A Division EP1992429A1 (fr) 2002-01-21 2003-01-16 Outil de pose doté de moyens de contrôle du processus de pose

Publications (2)

Publication Number Publication Date
EP1469958A1 true EP1469958A1 (fr) 2004-10-27
EP1469958B1 EP1469958B1 (fr) 2008-12-03

Family

ID=27214702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03729464A Expired - Lifetime EP1469958B1 (fr) 2002-01-21 2003-01-16 Outil de pose equipe de systemes de controle de processus de pose

Country Status (10)

Country Link
EP (1) EP1469958B1 (fr)
CN (1) CN100595001C (fr)
AT (1) ATE416050T1 (fr)
AU (1) AU2003235721A1 (fr)
CZ (1) CZ305122B6 (fr)
ES (1) ES2318136T3 (fr)
HU (1) HUP0402610A2 (fr)
PL (1) PL205309B1 (fr)
SK (1) SK3022004A3 (fr)
WO (1) WO2003059551A1 (fr)

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JP4491204B2 (ja) * 2003-07-31 2010-06-30 ポップリベット・ファスナー株式会社 固着具締結装置
DE20314362U1 (de) * 2003-09-12 2003-11-27 Avdel Verbindungselemente Gmbh Nietverarbeitungsgerät
JP4842250B2 (ja) * 2004-03-24 2011-12-21 ニューフレイ リミテッド ライアビリティ カンパニー リベット監視システム
WO2009088562A2 (fr) * 2007-09-14 2009-07-16 Pem Management, Inc. Procédé pour déterminer la force d'introduction optimale d'une presse à attache
EP2641672A1 (fr) * 2012-03-23 2013-09-25 Airbus Operations, S.L. Procédé d'évaluation de l'installation de rivets borgnes, procédé et système permettant d'installer des rivets aveugles, procédé et système permettant d'obtenir un motif et avion
DE202012101490U1 (de) 2012-04-20 2012-05-30 Gebr. Titgemeyer Gmbh & Co Kg Nietsetzgerät mit Ventilmodul
DE102013221792A1 (de) * 2013-10-28 2015-05-13 Robert Bosch Gmbh Intelligentes Nietsetzgerät
DE102014201366A1 (de) * 2014-01-27 2015-07-30 Robert Bosch Gmbh Stationäres kabelloses werkzeug
DE102014215167A1 (de) * 2014-08-01 2016-02-18 Robert Bosch Gmbh Schraub- und/oder nietsystem und verfahren zum überwachen eines schraub- und/oder nietsystems
AT14535U1 (de) * 2014-09-19 2016-01-15 Engel Austria Gmbh Vorrichtung zur Detektion des Aufeinandertreffens von Maschinenteilen
DE102015115057B4 (de) * 2015-09-08 2017-07-13 Vvg-Befestigungstechnik Gmbh & Co. Verfahren zur Einrichtung eines handhaltbaren Nietgeräts
CN105382172B (zh) * 2015-12-15 2017-06-16 眉山中车紧固件科技有限公司 智能铆接监测方法及系统
EP3181260B1 (fr) * 2015-12-17 2019-09-25 Robert Bosch Gmbh Identification d'un patinage
JP2017205802A (ja) * 2016-05-20 2017-11-24 三菱重工業株式会社 打鋲装置およびその制御方法
CN108372269B (zh) * 2018-02-13 2019-06-25 铁藤机电技术（上海）有限公司 一种全自动铆接机的枪头
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Also Published As

Publication number Publication date
AU2003235721A1 (en) 2003-07-30
WO2003059551A1 (fr) 2003-07-24
CN1638888A (zh) 2005-07-13
CN100595001C (zh) 2010-03-24
HUP0402610A2 (hu) 2005-04-28
PL205309B1 (pl) 2010-04-30
SK3022004A3 (en) 2004-12-01
ES2318136T3 (es) 2009-05-01
CZ2004878A3 (cs) 2005-01-12
EP1469958B1 (fr) 2008-12-03
CZ305122B6 (cs) 2015-05-13
PL370677A1 (en) 2005-05-30
ATE416050T1 (de) 2008-12-15

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