EP0067272B1 - Nietvorrichtung - Google Patents

Nietvorrichtung Download PDF

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Publication number
EP0067272B1
EP0067272B1 EP19820101576 EP82101576A EP0067272B1 EP 0067272 B1 EP0067272 B1 EP 0067272B1 EP 19820101576 EP19820101576 EP 19820101576 EP 82101576 A EP82101576 A EP 82101576A EP 0067272 B1 EP0067272 B1 EP 0067272B1
Authority
EP
European Patent Office
Prior art keywords
piston
control
bore
work
hold
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.)
Expired
Application number
EP19820101576
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0067272A3 (en
EP0067272A2 (de
Inventor
Karl Kinkel
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.)
Cessione magra - Industrie
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0067272A2 publication Critical patent/EP0067272A2/de
Publication of EP0067272A3 publication Critical patent/EP0067272A3/de
Application granted granted Critical
Publication of EP0067272B1 publication Critical patent/EP0067272B1/de
Expired legal-status Critical Current

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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
    • B21J15/10—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

Definitions

  • the invention relates to a riveting device with a working cylinder and a working piston axially displaceable therein by a pressure medium with a plunger guided in a hold-down device, the working piston being acted upon on both sides by changing the position of a control valve by a pressure medium and during the riveting on the side opposite the riveting device riveting parts abuts a counterholder with rivet feeder, and a control piston, which is connected via a measuring line to the rivet feeder for rivets of different lengths.
  • Such riveting devices are e.g. known from DE-A-18 03 479 and have the disadvantage that they always have to be converted when using rivets of different lengths. This is particularly disadvantageous in aircraft construction, where the material thicknesses and thus the rivet lengths are already different in the area of certain assemblies.
  • the object of the invention is therefore to design a riveting device so that rivets of different lengths can be used with it without special conversion measures. This object is achieved with the features of claim 1.
  • the control piston When working, the control piston is first acted on and pushes the hold-down device connected to it down to the parts to be riveted. With this displacement of the hold-down device from its rest position, the material thickness is measured and the length of the rivet to be used is determined. The determined dimension for the rivet length is communicated to the rivet feed device, which selects the necessary rivet and inserts it into the prepared bore, where it is then provided with a closing head by the plunger by pressurizing the control piston.
  • the features of claim 2 serve the actual riveting process, while the features of claim 3 are necessary for retracting the working piston, the features of claim 4 permitting the necessary retraction of the control piston.
  • Claim 5 relates to the expedient arrangement of the hold-down device and the measuring ruler connected to it for determining the rivet length.
  • Claims 6 and 7 relate to the fastening of the measuring ruler to the control piston and the measuring spring according to claim 8 ensures the faultless return of the measuring ruler to the starting position so that the following operation can be initiated to determine the rivet length.
  • the measures according to claim 9 relate to the known connections between the pressure chambers via valves to the pump or to the tank.
  • the working cylinder 1 is connected via a counter pressure bracket 14 to a rivet feed device 15 above the laminated core 11.
  • the pump 32 conveys the pressure medium from the tank 31 through the pressure medium line 30, the control valve 27 and through the return line 24 into the annular space 17, where it acts upon the annular surface 2d of the working piston 2 to hold it in the position shown on the piston stop le.
  • the control spring 9 presses the control piston 4 with its stop pin 4e against the bore bottom 1g and holds it in the position shown.
  • the pressure medium also flowed from the bottom of the bore 1g through the rivet line 26 and the measuring valve 28 into the pressure medium line 29 leading to the tank 31.
  • the measuring valve 28 is switched over and the pressure medium is passed through the rivet measuring line 26 into the bore bottom 1g.
  • the control piston 4 displaces the measuring ruler 7 against the pressure of the measuring spring 8 and the control spring 9 relative to the piston head 2a and causes the holding-down device 6, which is guided in a holding-down hole 1a of the working cylinder 1, to be placed on the underside of the laminated core 11.
  • the path traveled, i.e. the thickness of the laminated core 11 is determined on the measuring ruler 7.
  • the corresponding rivet 10 is inserted into its prepared bore via the rivet feed device 15 and held there by the counter-holder 12 during the riveting.
  • the pressure medium delivered by the pump 32 passes through the rivet pressure line 25 into the annular space 18 and from there through the channel 23 into the annular space 20, which is enlarged and thus after the first movement of the working piston 2 through the annular space 20a has a large area for loading the working piston 2.
  • This causes the plunger 3 to be displaced in a plunger bore 6a of the hold-down 6 to form the rivet 10 and thus forms the closing head 13.
  • the working piston 2 only moves forward with the plunger 3 as far as the control piston 4 has advanced with the hold-down 6, i.e. the distance 34 is restored and thus determines the closing head height 33 of the rivet 20 regardless of the thickness of the laminated core 11.
  • the return of the working piston 2 is initiated by switching the measuring valve 28 into the switching position shown.
  • the pressure medium from the space below the annular piston 4d flows through the rivet measuring line 26 and the measuring valve 28 and through the pressure medium line 29 into the tank 31.
  • the control piston 4 is moved downward by the control spring 9.
  • the hold-down device 6 is followed by one Slot 1b of the working cylinder 1 measuring ruler 7 by means of the measuring spring 8 guided in the spring slot 2b.
  • the pressure oil from the space 20 / 20a flows through the channel 22 into the annular space 19 and the channel 21 into the annular space 17 and from there through the return line 24 and the converted control valve 27 through the pressure medium line 29 into the tank 31.
  • the return piston 2 then follows with its plunger 3 until the starting position shown is reached.
  • the control valve 27 is then switched back to the starting position.
  • the annular surfaces 4a of the control piston 4 are connected to one another via a shaft 4b.
  • the piston 4d provided on the shaft shoulder 4c is guided in a control piston bore 1f of the working cylinder 1 and bears against the base 1g thereof with a stop pin 4e.
  • the measuring ruler 7 has a depression 7a and a through hole 7b for a head 5a and a shaft 5b of a cylinder screw for fastening on the control piston 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)
  • Insertion Pins And Rivets (AREA)
  • Forging (AREA)
EP19820101576 1981-06-13 1982-03-02 Nietvorrichtung Expired EP0067272B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813123581 DE3123581A1 (de) 1981-06-13 1981-06-13 Nietvorrichtung
DE3123581 1981-06-13

Publications (3)

Publication Number Publication Date
EP0067272A2 EP0067272A2 (de) 1982-12-22
EP0067272A3 EP0067272A3 (en) 1984-03-21
EP0067272B1 true EP0067272B1 (de) 1986-11-12

Family

ID=6134690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820101576 Expired EP0067272B1 (de) 1981-06-13 1982-03-02 Nietvorrichtung

Country Status (3)

Country Link
EP (1) EP0067272B1 (enrdf_load_stackoverflow)
DE (1) DE3123581A1 (enrdf_load_stackoverflow)
ES (1) ES511108A0 (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3301243C2 (de) * 1983-01-15 1985-07-04 Mannesmann AG, 4000 Düsseldorf Nietzuführungseinrichtung an einer Nietmaschine
FR2542226B1 (fr) * 1983-03-09 1987-07-03 Saint Chamond Granat Ets Verin hydraulique de poussee portatif notamment pour bouteroller des rivets
US4552010A (en) * 1984-07-09 1985-11-12 Olympic Fastening Systems Pulling head for blind fasteners
US4836003A (en) * 1988-09-14 1989-06-06 Emhart Industries, Inc. System for providing a liquid to a blind rivet setting mechanism
DE4023963A1 (de) * 1990-07-27 1992-01-30 Tucker Gmbh Bostik Blindnietsetzwerkzeug
ES2193444T3 (es) * 1997-07-26 2003-11-01 Eibes Kerb Konus Gmbh Hokramienta de estampado y corte.
DE10150264B4 (de) * 2001-10-11 2006-12-21 Airbus Deutschland Gmbh Verfahren sowie Vorrichtung zur Nietauswahl für Nietverbindungen
CN113305217A (zh) * 2021-05-17 2021-08-27 江苏盾安环控系统有限公司 一种核电站用调节阀叶片连接方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE958447C (de) * 1943-12-13 1957-02-21 Chicago Pneumatic Tool Co Automatische Versenkmaschine
US2578546A (en) * 1948-12-28 1951-12-11 Judson L Thomson Mfg Company Riveting and like machines with pressure limiting mechanism
US3030832A (en) * 1958-01-23 1962-04-24 Acf Ind Inc Riveting machine or the like
US3190104A (en) * 1962-02-08 1965-06-22 Anthony Paul Automatic pull gun
US3557442A (en) * 1968-04-02 1971-01-26 Gen Electro Mech Corp Slug riveting method and apparatus
US4220275A (en) * 1978-07-31 1980-09-02 The Boeing Company Fastener selection system

Also Published As

Publication number Publication date
EP0067272A3 (en) 1984-03-21
EP0067272A2 (de) 1982-12-22
ES8301702A1 (es) 1983-02-01
DE3123581C2 (enrdf_load_stackoverflow) 1989-02-16
ES511108A0 (es) 1983-02-01
DE3123581A1 (de) 1982-12-30

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