WO2009007825A2 - Riveteuse pneumatique - hydraulique - Google Patents

Riveteuse pneumatique - hydraulique Download PDF

Info

Publication number
WO2009007825A2
WO2009007825A2 PCT/IB2008/001778 IB2008001778W WO2009007825A2 WO 2009007825 A2 WO2009007825 A2 WO 2009007825A2 IB 2008001778 W IB2008001778 W IB 2008001778W WO 2009007825 A2 WO2009007825 A2 WO 2009007825A2
Authority
WO
WIPO (PCT)
Prior art keywords
pneumatic
grip
conduits
container
gun
Prior art date
Application number
PCT/IB2008/001778
Other languages
English (en)
Other versions
WO2009007825A3 (fr
Inventor
Giuseppe Preti
Original Assignee
Ober S.P.A.
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 Ober S.P.A. filed Critical Ober S.P.A.
Priority to EP08776333A priority Critical patent/EP2176034B1/fr
Priority to DE602008006089T priority patent/DE602008006089D1/de
Priority to AT08776333T priority patent/ATE504399T1/de
Publication of WO2009007825A2 publication Critical patent/WO2009007825A2/fr
Publication of WO2009007825A3 publication Critical patent/WO2009007825A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0007—Tools for fixing internally screw-threaded tubular fasteners
    • B25B27/0014—Tools for fixing internally screw-threaded tubular fasteners motor-driven
    • 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
    • B21J15/16—Drives for riveting machines; Transmission means therefor
    • B21J15/22—Drives for riveting machines; Transmission means therefor operated by both hydraulic or liquid pressure and gas pressure

Definitions

  • the invention relates to the technical sector of rivet guns, with special reference to those having servo-assisted activation, used for rivets having a cylindrical shape, a partially-threaded axial hole, a striking collar at a head thereof and a specially-weakened portion in which the plastic deformation is located.
  • the above-described rivets are destined stably to unite two walls, for example in place of spot-welding, or to constitute a threaded anchoring bushing, of an adequate sturdiness, for structures made using too-soft or too-thin materials to be able to offer sufficiently resistant tapped threads.
  • a pneumatic motor which sets in right- or left-wise rotation a threaded tie-rod, respective to engage or disengage the tie-rod from the axial threaded hole of one of the rivets;
  • a pneumatic force amplifier activating a piston for compressing the fluid in the oil-dynamic system
  • a pneumatic system comprising an auxiliary valve, opened by the tie- rod, which drives the motor to rotate rightwise, and a main valve, opened by a trigger, following the closure of the auxiliary valve, for enabling supply of the pneumatic force amplifier and the leftwise rotation of the motor;
  • a hydro-pneumatic exchange valve connected to the oil-dynamic and pneumatic systems, which detects a predetermined fluid pressure in the oil-dynamic system and, on reaching it, automatically switches the compressed air delivery, interrupting flow thereof towards the force amplifier and directing it towards the motor, setting it in left-wise rotation as long as the trigger of the above-cited main valve is kept depressed;
  • an emergency command associated to the pneumatic system and destined to set the motor in leftwise rotation, in abnormal functioning conditions and following an activating manoeuvre given by the operator.
  • the above-described gun similarly to others of known type, comprises an upper body, horizontally developed, in which the motor-tie-rod group is housed, internally of which the auxiliary valve is inserted.
  • a grip extends downwards from the upper body, in which grip the oil- dynamic system and the main valve of the pneumatic system are housed, arranged such that the relative trigger is in an ergonomic position with respect to the grip.
  • a cylindrical container is removably fixed in which the pneumatic force amplifier is housed.
  • the upper body, the grip and the cylindrical container also exhibit internal channels for creating the predetermined functional connections among the organs.
  • the upper body and the grip are preferably made in a single block, using a known process which first involves obtaining, by plastic deformation by moulding in a press, a semi-finished blank which is then subjected to mechanical working using machine tools, with the aim of fashioning the housings for the above-described organs, creating any threading for the fastening thereof and boring the internal channels.
  • the cylindrical container for amplifying the force can, in turn, be realised using the same technique or can alternatively be made by press- moulding.
  • the remaining components i.e. the hydro-pneumatic valve and the emergency command, must be housed such as to enable the necessary functional connections with the oil-dynamic and pneumatic systems.
  • a further risk is that of obtaining a product having poor functional efficiency, due to the load loss deriving from the presence of long and narrow air passages.
  • the aim of the invention is therefore to provide a pneumatic-hydraulic rivet gun which is built with technical solutions that can contemporaneously satisfy the functional requirements thereof and those needed for the mechanical working operations.
  • a further aim of the invention is to provide a gun which, thanks to the peculiar characteristics thereof, is compact, ergonomic in shape and provided with pleasant aesthetic qualities.
  • a further aim of the invention is to provide a gun the components of which can be quickly assembled and, when required, dismounted in order to give maintenance times which are particularly contained.
  • a pneumatic-hydraulic rivet gun of a type comprising: an upper body, developing horizontally; a grip, solidly constrained to the upper body and developing in a downwards direction; a container, destined to be removably associated below the grip; pneumatic and hydraulic operating organs, interconnected to one another in a predetermined scheme by means of pneumatic and oil-dynamic connecting conduits; a connection for connecting with an external source of compressed air destined to supply the pneumatic organs via the pneumatic conduits, the gun being characterised in that it further comprises a disc flange, interposed between the lower end of the grip and the cylindrical container, which disc flange comprises: at least a housing for one of the operating organs; at least an axial through-hole for the transit of a corresponding operating organ located between the container and the grip; a series of channels defining a part of the connecting conduits and located in communication with a remaining part of the conduits realised in the overlying grip and in the underlying container; means for
  • figure 1 is a schematic view of a rivet gun of the type of the invention, in which the functional connections among the various operating organs are evidenced;
  • figure 2 is a schematic lateral view of the gun of the invention, with the sub-groups of which it is composed shown in exploded views, one of which is seen in vertical section;
  • figure 3 illustrated a further section of the sectioned sub-group of figure 2, according to plane Ill-Ill thereof.
  • 100 denotes in its entirety the pneumatic-hydraulic rivet gun of the invention.
  • the gun 100 considered is, for example, of the type described in the premises and comprises:
  • a grip 102 solidly constrained to the upper body 101 and developing in a downwards direction;
  • a container 200 destined to be removably associated below the grip 102;
  • a pneumatic motor 1 housed in the upper body 101 ;
  • an oil-dynamic system 4 housed in the grip 102;
  • a pneumatic force amplifier housed in the container 200;
  • a pneumatic system 6 comprising an auxiliary valve 60, associated to the motor-tie-rod group, and a main valve 61 , housed in the grip 102;
  • a hydro-pneumatic exchange valve 10 connected to the oil-dynamic system 4 and the pneumatic system 6;
  • an inlet conduit 64 supplied with compressed air coming from an external source (not illustrated) and branching towards the auxiliary valve 60, the main valve 61 and the emergency command 63;
  • a first delivery conduit 66 of compressed air connecting the exchange valve 10 with the force amplifier 5;
  • a second delivery conduit 67 of compressed air originating from the exchange valve 10 and directed towards the pneumatic motor 1 ;
  • a branch conduit 41 occupied by the fluid of the oil-dynamic system 4, for connecting the oil-dynamic system with the exchange valve 10.
  • the gun 100 of the invention comprises the exchange valve 10, the emergency command 63 and a connection 360 destined to connect the gun 100 with the external source of compressed air, all housed in a disc flange 300 removably interposed between the lower end of the grip 102 and the cylindrical container 200.
  • the disc flange 300 is preferably made in a single block, following the same technique as for the upper body 101 an the grip 102, which includes first obtaining a semi-finished workpiece (not illustrated) by plastic deformation by moulding in a press.
  • the semi-finished workpiece is then subjected to mechanical working with machine tools, in order to realise:
  • a first housing 310 located by a side of the axial hole 350 with an axis that is perpendicular thereto, exhibiting a side which is open extemalwise and destined to receive the connection 360;
  • a second housing 320 located by a side of the axial hole 350 with an axis that is perpendicular thereto, exhibiting a side which is open extemalwise and destined to receive the hydro-pneumatic exchange valve 10;
  • a third housing 330 located by a side of the axis hole 350 with an axis that is perpendicular thereto, exhibiting a side which is open extemalwise and destined to receive the emergency command 63;
  • the gun 100 once assembled, thus exhibits function characteristics that are identical to those which were mentioned in the preamble hereto.
  • disc flange 300 relating to a particular type of rivet gun, is obviously not to be considered limiting, inasmuch as the constructional solution herein provided can naturally be adopted to rivet guns of different type; in these cases, other specific components can be conveniently housed in the flange 300, and different connecting conduits can be made towards the overlying grip and the underlying container.
  • the presence of the flange, with the moving thereof of not- inconsiderably-sized components, enables obtaining an ergonomically correct gun, in particular in the gripping zone, limiting the size of the upper body, with obvious advantages for the manoeuvrability thereof in cramped spaces.
  • a further important characteristic, given by the compact shape thereof, is a pleasant appearance which, though not being of fundamental importance in a work tool, is still a good selling point.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Surgical Instruments (AREA)
  • Rotary Pumps (AREA)
  • Disintegrating Or Milling (AREA)
  • Scissors And Nippers (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Nozzles (AREA)

Abstract

L'invention concerne une riveteuse (100) qui comprend une bride de disque (300) interposée de manière amovible entre une extrémité inférieure d'une mâchoire (102) et un contenant cylindrique sous-jacent (200). La bride (300) comprend : un premier, un deuxième et un troisième boîtier (310, 320, 330) pour des organes de fonctionnement relatifs du pistolet (100) ; un trou traversant axial (350) pour le passage d'un organe de fonctionnement correspondant entre le contenant (200) et la mâchoire (102) ; une série de rainures (41, 64, 65, 66, 67) définissant une partie des conduits de raccordement pneumatiques et hydrauliques, placés en communication avec les organes de fonctionnement logés dans la bride (300) et avec la partie restante des conduits placée dans la mâchoire sus-jacente (102) et le contenant sous-jacent (200).
PCT/IB2008/001778 2007-07-10 2008-07-07 Riveteuse pneumatique - hydraulique WO2009007825A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08776333A EP2176034B1 (fr) 2007-07-10 2008-07-07 Riveteuse pneumatique - hydraulique
DE602008006089T DE602008006089D1 (de) 2007-07-10 2008-07-07 Pneumatisch-hydraulische nietpistole
AT08776333T ATE504399T1 (de) 2007-07-10 2008-07-07 Pneumatisch-hydraulische nietpistole

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000469A ITBO20070469A1 (it) 2007-07-10 2007-07-10 Pistola rivettatrice pneumoidraulica
ITBO2007A000469 2007-07-10

Publications (2)

Publication Number Publication Date
WO2009007825A2 true WO2009007825A2 (fr) 2009-01-15
WO2009007825A3 WO2009007825A3 (fr) 2009-03-12

Family

ID=40119376

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/001778 WO2009007825A2 (fr) 2007-07-10 2008-07-07 Riveteuse pneumatique - hydraulique

Country Status (6)

Country Link
EP (1) EP2176034B1 (fr)
AT (1) ATE504399T1 (fr)
DE (1) DE602008006089D1 (fr)
ES (1) ES2363949T3 (fr)
IT (1) ITBO20070469A1 (fr)
WO (1) WO2009007825A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11654475B2 (en) 2020-06-03 2023-05-23 Milwaukee Electric Tool Corporation Rivet setting tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB655512A (en) * 1948-01-23 1951-07-25 Chicago Pneumatic Tool Co Power-operated tool for setting flanged screw sockets
DE1949951A1 (de) * 1968-10-04 1970-04-09 Aerpat Ag Nietvorrichtung
US3555649A (en) * 1968-10-07 1971-01-19 Aerpat Ag Adaptor for pneumatically operated pulling tool
US7082658B1 (en) * 2005-07-27 2006-08-01 Yu-Ching Lin Intake control valve assembly of a rivet-nut gun

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB655512A (en) * 1948-01-23 1951-07-25 Chicago Pneumatic Tool Co Power-operated tool for setting flanged screw sockets
DE1949951A1 (de) * 1968-10-04 1970-04-09 Aerpat Ag Nietvorrichtung
US3555649A (en) * 1968-10-07 1971-01-19 Aerpat Ag Adaptor for pneumatically operated pulling tool
US7082658B1 (en) * 2005-07-27 2006-08-01 Yu-Ching Lin Intake control valve assembly of a rivet-nut gun

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11654475B2 (en) 2020-06-03 2023-05-23 Milwaukee Electric Tool Corporation Rivet setting tool

Also Published As

Publication number Publication date
EP2176034B1 (fr) 2011-04-06
ATE504399T1 (de) 2011-04-15
EP2176034A2 (fr) 2010-04-21
ES2363949T3 (es) 2011-08-19
DE602008006089D1 (de) 2011-05-19
ITBO20070469A1 (it) 2009-01-11
WO2009007825A3 (fr) 2009-03-12

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