EP3178583A2 - Dispositif de rivetage par sertissage et procédé de rivetage par sertissage au moyen d'une oscillation soutenant la force exercée sur le poinçon - Google Patents

Dispositif de rivetage par sertissage et procédé de rivetage par sertissage au moyen d'une oscillation soutenant la force exercée sur le poinçon Download PDF

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Publication number
EP3178583A2
EP3178583A2 EP16199456.1A EP16199456A EP3178583A2 EP 3178583 A2 EP3178583 A2 EP 3178583A2 EP 16199456 A EP16199456 A EP 16199456A EP 3178583 A2 EP3178583 A2 EP 3178583A2
Authority
EP
European Patent Office
Prior art keywords
punch
vibration
rivet
test
riveting
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
EP16199456.1A
Other languages
German (de)
English (en)
Other versions
EP3178583B1 (fr
EP3178583A3 (fr
Inventor
Christoph Kauth
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3178583A2 publication Critical patent/EP3178583A2/fr
Publication of EP3178583A3 publication Critical patent/EP3178583A3/fr
Application granted granted Critical
Publication of EP3178583B1 publication Critical patent/EP3178583B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21J15/02—Riveting procedures
    • B21J15/025—Setting self-piercing rivets
    • 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
    • B21J15/12—Riveting machines with tools or tool parts having a movement additional to the feed movement, e.g. spin
    • 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
    • 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
    • B21J15/36—Rivet sets, i.e. tools for forming heads; Mandrels for expanding parts of hollow rivets
    • 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
    • B21J15/38—Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting

Definitions

  • the present invention relates to a punch riveting apparatus and a punch riveting method for punch riveting with a punch force assisting vibration, which is particularly an ultrasonic vibration.
  • a punch riveting apparatus is used for connecting at least one component with a punch rivet.
  • a punch rivet is used for connecting at least one component with a punch rivet.
  • either the two ends of a component by means of a punch rivet or more punch rivets are fastened together.
  • two or more components can be fastened together with a punch rivet.
  • test mechanism In practice, it has been found for the inventor that to document the quality of the punched rivet joint being made, if necessary, a test mechanism is to be provided. However, such a testing mechanism should be both less time-consuming and therefore inexpensive, highly reproducible, reliable as well as easy to use and in practice. This should be avoided as much as possible unwanted and costly plant downtime.
  • a punch riveting apparatus and a punch riveting method for punch riveting with a punch force assisting vibration with which the aforementioned problems can be solved.
  • a punch riveting apparatus and a punch riveting method are to be provided for punch riveting with a stamping force supporting vibration, in which a little time-consuming and thus inexpensive, highly reproducible, reliable as well as easy to perform in practice and in practice test mechanism is realized.
  • the punch riveting apparatus has a vibration generating means for generating the punch force assisting vibration for setting a punch rivet into at least one member, a die for receiving the punch force, and the punch force assisting vibration in setting the punch rivet, and a tester for checking the mechanical quality of the punch rivet produced rivet with a vibration generated by the vibration generating means test vibration.
  • the test device ensures that devices which are already present for generating the vibration during punch riveting can additionally also be used for a non-destructive test. As a result, no significant additional hardware costs arise due to the test.
  • the quality of the rivet connection made with the rivet is very cost-effective, highly reliable, and easy to handle and to carry out in practice supported in the supported with a vibration, especially ultrasound-assisted punch riveting while maintaining the existing punching frequency.
  • both the requirements for the rapid execution of the punched connection and for the documentation of the quality of the executed punched connection can be met very advantageously.
  • the test device can be designed to check the rivet connection produced with the punch rivet, before the punch rivet set in the component is released from the vibration generating device and the die.
  • the test device can be configured to act on the rivet connection produced by the punch rivet with the test oscillation immediately after setting the punch rivet.
  • the test device can be designed to use the vibration generated for setting the punch rivet as a test vibration.
  • the vibration generating device is arranged on a stamp, which is designed to generate the punch force.
  • the test device may comprise a detection unit which is arranged in the matrix for detecting the test vibration.
  • the test device may comprise a comparison unit which is designed with a reference oscillation for comparison of a test result oscillation, which was detected during testing of the rivet connection produced with the punch rivet with the test oscillation.
  • test device prefferably have an evaluation unit for evaluating the comparison result of the comparison unit in relation to a change in the at least one component into which the punch rivet has been set.
  • the vibration assisting a punch force is an ultrasonic vibration.
  • the punch riveting device can be arranged such that the position of the punch riveting device can be varied in space.
  • the punch riveting device can also be designed for manual operation with a battery.
  • the punch rivet device also has a memory device for storing the test result vibration, which was detected during testing of the rivet connection with the test vibration generated by the punch rivet, for each punch rivet and / or at least one reference oscillation.
  • the vibration profile can be documented for each riveted joint.
  • the punch riveting apparatus described above may be part of a system intended for the treatment of objects.
  • the punch riveting device can be provided for the punch riveting of at least one component which is provided for the treatment of at least one of the objects.
  • the system is designed for the production of vehicle bodies or electrical equipment as objects.
  • the object is also achieved by a Stanznietclar for punch riveting with a stamp force supporting vibration according to claim 10.
  • the punch riveting method has the steps of: generating, with a vibration generating means, a punch force assisting vibration for setting a punch rivet into at least one member, receiving, with a die, the punch force, and the punch force assisting vibration in setting the punch rivet, and testing Testing device, the mechanical quality of the rivet connection produced by the punch rivet with a test vibration generated by the vibration generating device.
  • the punch riveting method achieves the same advantages as previously mentioned with respect to the punch riveting apparatus.
  • the riveting joint produced by the punch rivet may be applied with the test vibration immediately after the punch rivet is set.
  • the vibration generated to set the punch rivet may be used as the test vibration.
  • Fig. 1 shows very schematically a system 1 with a punch rivet 2.
  • the system 1 may for example be a production facility for items 4, such as vehicles, furniture, electrical appliances, etc.
  • the punch riveting device 2 is used for setting a punch rivet 5 in a first component 6 and a second component 7, which rest on a die 10 one above the other. Since the second component 7 rests on the first component 6, the first component 6 can also be referred to as a base component and the second component 7 as a cover component. After the punch rivet 5 has been set in the first and second components 6, 7, the punch rivet 5 connects the first and second components 6, 7. The punch rivet 5 produces a riveted connection of the first and second component 6, 7.
  • the first and second component 6, 7 may be components of the article 4. As described above, however, only two edges of one and the same component 6 can be connected to one another by means of at least one punch rivet 5.
  • test device 15 is provided, which is designed for testing the rivet connection produced with the punch rivet 5.
  • the test device 15 is described in more detail below with reference to FIG Fig. 5 described.
  • a punch 20 with a vibration generating device 21 is provided.
  • the punch 20 is guided in a hold-down 30.
  • the punch 20 is driven by means of a drive device 40, so that on the punch 20 a punch force F acts, which is in particular a punch pressure force.
  • a converter 50 is provided which initiates a vibration S supporting the punch force F.
  • the vibration S is provided by means of the vibration generating device 21 of the punch 20 for the punch rivet 5 and thus the component 6, 7.
  • the oscillation generating device 21 may be, for example, a sonotrode, which generates ultrasound as the stamping force F assisting oscillation.
  • FIG. 2 shows a state of a punch riveting method performed by the punch riveting apparatus 2 in which the punch rivet 5 is interposed between the punch 20 and the second member 7. Subsequently, with the punch 20, the punch force F in the direction of the punch rivet 5 and with the vibration generating device 21 which the punch force F supporting vibration S in a range of, for example, 15 kHz to 20 kHz and an amplitude of, for example, 5 to 50 microns are applied to the punch rivet 5.
  • the vibration S has in the components 6, 7 a jackhammer effect, by which the material of the components 6, 7 is softened.
  • the punch rivet 5 is first cut or punched into the components 7, 6, as in FIG Fig. 2 illustrated. If the punching force F continues and the oscillation force F assisting the oscillation S, the punched rivet 5 spreads in the components 6, 7 by the back pressure from the die 10, as in FIG Fig. 3 shown. In addition, formed on the punch rivet 5 from the components 6, 7 a slug 8.
  • the punch riveting device 2 can then be moved back to the starting position for punch riveting, which in Fig. 1 is shown. Thereafter, a next punch rivet 5 can be placed in the components 6, 7 or in another component.
  • the test device 15 has a detection unit 151 for detecting the test vibration P, a comparison unit 152 and an evaluation unit 153.
  • the detection unit 151 is arranged on the die 10, whereas the comparison unit 152 and the evaluation unit 153 are arranged separately from the die 10, namely in this embodiment as an example in a control device 55 of the punching device. 2
  • the test device 15 is connected to a memory device 60 in which a reference oscillation 61 and / or test result oscillations 62, 63 and / or evaluation results 64, 65 are stored.
  • the reference vibration 61 is a vibration or vibration waveform detected upon inspection of a rivet joint formed with a punch rivet 5 having satisfactory mechanical quality.
  • the evaluation results 64, 65 can be displayed for a user on a display device 70 of the punching device 2.
  • tolerance bands may also be included in memory device 60 to estimate the quality of the current riveted joint.
  • a step S1 is executed.
  • step S1 as in FIG Fig. 1 to Fig. 3 shown with the vibration generating device 20, the vibration S generates, which supports the punch force F for setting the punch rivet 5 in the components 6, 7. Thereafter, the flow proceeds to a step S2.
  • step S2 the punching force F and the vibration S supporting the punching force F are taken up with the die 10 in setting the punch rivet 5 until the punch rivet 5 is set, as in FIG Fig. 4 shown. Thereafter, the flow proceeds to a step S3.
  • the test vibration P generated by the vibration generating device 21 is applied to the punch rivet 5 and the resulting test result vibration 62 is stored in the memory device 60.
  • the test oscillation P is emitted to the punch rivet 5, which constitutes the completed riveted, penetrating the finished riveted joint.
  • the test vibration P is received or received by the detection unit 151 in the die 10. Thereafter, the flow proceeds to a step S4.
  • step S4 the comparing unit 152 compares the test result vibration 62 stored in the memory device 60 in step S3 and the reference vibration 61 stored in the memory device 60. Thereafter, the flow proceeds to step S5.
  • step S5 the evaluation unit 153 evaluates whether the comparison made in step S4 shows that the riveted joint produced by the punch rivet 5 has a good quality or a poor quality.
  • Good quality here means that the riveted joint is equal to the reference vibration 61 or deviates from the reference vibration 61 only in the region of the tolerance bands. Accordingly, “bad” quality means that the riveted joint is not equal to the reference vibration 61 or outside the range of the tolerance bands of the reference vibration 61.
  • the evaluation result 64 resulting from the evaluation, the result of the quality check of the rivet connection produced with the punch rivet 5, is likewise stored in the memory device 60.
  • the evaluation result 64 is connection-specific, such as aluminum / steel sheet, size of the punch rivet, etc.
  • step S6 the evaluation result 64 is displayed with the display device 70 for a user, for example optically and / or acoustically. Thereafter, the punch riveting process for setting a punch rivet 5 is completed.
  • the punch riveting process may then be restarted to set another punch rivet 5.
  • the test result vibration 63 obtained thereby and the associated evaluation result 65 can be added to the previously stored test result vibration 62 and the associated evaluation result 64 in the memory device 60.
  • a punch rivet 2 with punch 20 and die 10 is provided as a counter-holder to press a punch rivet 5 by means of the punch 20 in at least one component 6, 7 by the punch 20 can be vibrated by means of the vibration generating device 21 so that the punch rivet 5 can be pressed by means of a Eind Wegschwingung in the at least one component 6, 7.
  • it is provided to check the mechanical quality of the rivet connection produced with the punch rivet 5 by generating a test oscillation P by means of the oscillation generating device 21 after the oscillation S and recording it by measurement, the rivet connection being subjected to this test oscillation P.
  • the die 10 has the detection unit 151, which is embodied, for example, as an ultrasonic receiver or ultrasonic reflector, which evaluates the ultrasonic signal used for punching as the test oscillation P in order to carry out a non-destructive inspection of a rivet connection produced in particular by the same signal.
  • the detection unit 151 which is embodied, for example, as an ultrasonic receiver or ultrasonic reflector, which evaluates the ultrasonic signal used for punching as the test oscillation P in order to carry out a non-destructive inspection of a rivet connection produced in particular by the same signal.
  • test vibration P may also be the same signal as the vibration S in a specific embodiment of the present embodiment.
  • FIGS. 7 to 10 show a system 1 with a punching device 3 according to a second embodiment.
  • the punching device 3 is largely implemented in the same manner as described with respect to the previous embodiment.
  • test vibration P is already applied together with the vibration S provided to assist the punch force F in setting the punch rivet 5.
  • the test vibration P is already applied at step S1 as an additional vibration to the vibration S and not at step S3 as described in the foregoing embodiment.
  • the test vibration P and the vibration S are detected and evaluated together.
  • the punch riveting apparatus 3 according to the present embodiment is constructed in the same manner as the punch riveting apparatus 2 according to the foregoing embodiment.
  • the vibration S is thus used for two different purposes.
  • the vibration S is detected here with the detection unit 151 and evaluated in the test device 15.
  • the punch riveting apparatus according to the present embodiment is constructed in the same manner as the punch riveting apparatus 2 according to the first embodiment.
  • a fourth embodiment with Fig. 11 In the punch riveter 2, not only the detection unit 151 of the inspection device 15 is arranged in the die 10. Instead, in the present embodiment, the comparison unit 152 and the evaluation unit 153 are arranged in the die 10. As a result, a particularly compact testing device 15 is achieved. In this case, however, it must be ensured that the comparison unit 152 and the evaluation unit 153 are not affected by the oscillation S and the test oscillation P in the die 10. If appropriate, the functions of the comparison unit 152 and of the evaluation unit 153 can also be carried out only when the oscillation S and the test oscillation P in the matrix 10 have been switched off.
  • the punch riveting apparatus 2 according to the present embodiment is constructed in the same manner as the punch riveting apparatus 2 according to the first embodiment.
  • the display device 70 is a durable device in the hand of a user, which may also be referred to as a handheld device.
  • the hand-held display device 70 is in execution of the Stanznietvons with one of the punch riveting described above 2, 3 set to at least one rietet to be riveted component 6, 7 and / or the punch rivet 5 to produce the rivet.
  • the display device 70 can retrieve the logged quality of the rivet connection from the memory device 60, in particular a database stored in the memory device 60.
  • the display device 70 can retrieve, for example wirelessly via WLAN, radio, Bluetooth, etc., for example, a graphical representation of, in particular, the measurement curve for the quality of the riveted connection determined during the punch riveting process.
  • At least one of the components 6, 7 may also be provided with a code, such as a matrix code, a bar code, a QR code, etc., which is scanned by the hand-held display device 70.
  • the code identifies the component 6, 7, and the hand-held display device 70 fully automatically contacts the database and retrieves the component-specific data, preferably including the quality data, as the reference data 61 that is logged for the component 6, 7 identified with the code the storage device 60 are stored.
  • testing device 15 can be modified as desired as long as the function of checking the mechanical quality of the rivet connection is implemented as a whole, as described above.
  • test oscillation P only at a state of Fig. 2 or Fig. 3 is turned on.
  • the detection unit 151 may be configured as a vibration receiver. Additionally or alternatively, the detection unit 151 can also serve as a reflector for the oscillation S and / or the test oscillation P. As a result, the test device 15 as the detection unit 151 may be a transmitter / receiver unit for transmitting and / or receiving the vibrations S, P. In this case, the punching rivet 5 facing surface of the vibration generating device 21 after setting the punch rivet 5 in the at least one component 6, 7 and thus the production of the rivet connection as a reflection surface for an emanating from the die 10 test signal P serve, which from the receiver in the Matrix 10 is received again.
  • test device 15 executed in connection with the comparison unit 152 and the evaluation unit 153 may be implemented as software.
  • the punch riveting devices 2, 3 of all embodiments may also be a punch riveter with suspension, which is maneuverable by the user, in particular to be able to vary a horizontal position of the punch riveting devices 2, 3 in the room as needed.
  • the suspension can make the punch riveting devices 2, 3 of all embodiments also adjustable vertically or in height. In general, the position of the punch riveting devices 2, 3 of all embodiments can be varied in space.
  • the user can selectively determine specific connections with filter-specific properties on the hand-held display device 70 by means of filter criteria with regard to the characteristic properties of riveted connections and visualize them with the aid of the hand-held display device 70.
  • filter criteria for example, a coarse filter, OK, non-OK, fine filter is possible for the characteristic properties of riveted joints.
  • a coarse filter, OK, non-OK, fine filter is possible for the characteristic properties of riveted joints.
  • punch riveting devices 2, 3 of all embodiments are designed for manual operation with a battery, in particular a rechargeable battery.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Connection Of Plates (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
EP16199456.1A 2015-12-10 2016-11-18 Dispositif et procédé de rivetage auto-poinçonnant avec vibration soutenant la force exercée sur le poinçon Active EP3178583B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015224784.8A DE102015224784A1 (de) 2015-12-10 2015-12-10 Stanznietvorrichtung und Stanznietverfahren zum Stanznieten mit einer eine Stempelkraft unterstützenden Schwingung

Publications (3)

Publication Number Publication Date
EP3178583A2 true EP3178583A2 (fr) 2017-06-14
EP3178583A3 EP3178583A3 (fr) 2017-07-05
EP3178583B1 EP3178583B1 (fr) 2020-09-09

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Application Number Title Priority Date Filing Date
EP16199456.1A Active EP3178583B1 (fr) 2015-12-10 2016-11-18 Dispositif et procédé de rivetage auto-poinçonnant avec vibration soutenant la force exercée sur le poinçon

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EP (1) EP3178583B1 (fr)
CN (1) CN106862463B (fr)
DE (1) DE102015224784A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN110788224B (zh) * 2019-10-16 2021-04-13 昆明理工大学 一种压印连接点的质量检测方法
JP7342646B2 (ja) * 2019-11-20 2023-09-12 株式会社Ihi 検査方法および検査装置
DE102022121173A1 (de) * 2022-08-22 2024-02-22 Profil Verbindungstechnik Gmbh & Co. Kg Setzeinrichtung

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Also Published As

Publication number Publication date
CN106862463A (zh) 2017-06-20
DE102015224784A1 (de) 2017-06-14
CN106862463B (zh) 2021-03-30
EP3178583B1 (fr) 2020-09-09
EP3178583A3 (fr) 2017-07-05

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