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
  • B21J15/022—Setting rivets by means of swaged-on locking collars, e.g. lockbolts
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/53—Means to assemble or disassemble
  • Y10T29/53709—Overedge assembling means
  • Y10T29/53717—Annular work
  • Y10T29/53726—Annular work with second workpiece inside annular work one workpiece moved to shape the other
  • Y10T29/5373—Annular work with second workpiece inside annular work one workpiece moved to shape the other comprising driver for snap-off-mandrel fastener; e.g., Pop [TM] riveter
  • Y10T29/53735—Annular work with second workpiece inside annular work one workpiece moved to shape the other comprising driver for snap-off-mandrel fastener; e.g., Pop [TM] riveter including near side fastener shaping tool

Definitions

• the present invention relates to a device for processing locking bolts with gripping jaws for tightening. of the bolt and a sleeve with anvil for cold working of the closure.
• the bolt is inserted into a borehole which extends through two or more flat workpieces to be connected, for example metal sheets, and the locking ring is pushed onto the bolt.
• the bolt is then tightened by the device for processing the locking bolts and the workpieces to be connected are thereby pressed firmly onto one another.
• the locking grooves of the bolt are formed, a Kal deformation taking place, in which the locking ring is simultaneously cold-formed in the sleeve with the anvil.
• the object according to the invention is achieved by such a device for processing locking bolts: in which a supporting device is arranged next to the anvil, which protrudes beyond the anvil and against the force of a spring element parallel to the longitudinal direction of the pin on the device is too agile.
• the support device is designed as a sleeve arranged concentrically around the anvil.
• the spring element can preferably be designed as a metallic coil spring or as a rubber or polyurethane spring element.
• a rubber or polyurethane spring can preferably be formed as a rubber sleeve arranged concentrically with the anvil. It is further preferred that the spring element is surrounded by a concentric sleeve which also serves as a guide for the support device. This simultaneously protects the spring element from environmental influences and eliminates the risk of injury from being trapped in a metallic coil spring.
• FIG. 1 shows a device according to the invention for processing Schileßringool zen
• Fig. 2 is a more detailed representation of the device according to the invention of Fig. 1;
• the present invention is based on a prior art, in which the devices for processing locking pin systems were very complex and heavy hydro-pneumatic devices which had to be equipped with a special hydro-pneumatic reset device in order to process the locking device , which has mostly been caulked in the anvil, after the processing operation has been released from the 2_mboss, so that the processing device could be removed again.
• the present invention offers a new solution in which the processing of locking bolts is considerably simplified and the processing can be carried out with much lighter and simpler devices.
• devices for processing mandrel rivet blind rivets which are very widespread and are available at a significantly lower price, can be converted for processing locking ring bolt systems.
• the present invention solves this problem by increasing the restoring force.
• FIG. 3 shows two sheets 20, 22 to be connected. These are provided with a borehole that runs through both sheets. a locking bolt 24 is inserted into this borehole.
• the locking ring bolt 24 has a head 26, which can be designed like a screw head.
• the bolt 24 is pushed through the bore with its end facing away from the head 26.
• a predetermined breaking point 30 further away from the head 26.
• This is followed by the gripping section 32. This is provided on its surface with grooves 34 which enable the corresponding tensile force to be transmitted to the bolt.
• the head 26 of the bolt 24 comes into contact with the workpiece on the head side, and at the same time the locking ring comes into contact with the opposite workpiece.
• the gripper jaws 5 move further away from the workpieces and the anvil 2 towards the workpieces, the workpieces now become 20, 22. Pressed firmly against one another, if these lie completely against one another, the locking ring 40 is now pushed through the ambo 2 cold-formed.
• the locking ring 40 is molded into the locking grooves 28 of the bolt 24.
• the locking ring 40 is also cold formed on the outside by the anvil 2. As a result of this process, the locking ring 40 is caulked in the anvil 2.
• the processing device for locking ring bolts according to the invention is derived from a mandrel broken blind riveting device, since these devices are particularly light, simple and inexpensive to manufacture in large series.
• the embodiment shown is a device driven by compressed air. The invention can of course be applied to all other types of drives.
• the device has the usual gripping jaws 5, which normally grip the mandrel of the broken mandrel rivet.
• the mouthpiece instead of the mouthpiece, another construction is provided for processing the locking ring bolts, which is placed on the processing device with the union nut 6 like a mandrel rivet blind rivet mouthpiece.
• the device according to the invention for processing locking ring bolts then has a sleeve which is arranged concentrically around the gripping jaws 5 in a manner similar to the mandrel rupture blind rivet mouthpiece.
• This sleeve opens into the anvil 2, which is used for cold forming the locking ring.
• a holder 7 can be provided for the locking rings if these are to be plugged on directly with the setting tool.
• An abutment ring 4 is arranged directly in front of the union nut 6, which also carries a concentric guide sleeve 8 and at the same time serves as an abutment for a likewise concentrically arranged spring element 3.
• This spring element 3 can be designed as a sleeve-shaped rubber or polyurethane spring or as a metallic coil spring.
• a further sleeve is attached, which surrounds the anvil 2 concentrically, and beyond this forward, that is to the riveted work protruding pieces.
• This sleeve is guided in the sleeve 8 such that it can be moved in the axial direction against the force of the spring element parallel to the longitudinal direction of the bolt to the rear.
• This sleeve serves as a support device 1 and can be moved backwards until it closes with the anvil 2.
• this support device 1 When using the device according to the invention for processing locking ring bolts, this support device 1 is placed on the workpiece 22 in the state of FIG. 3. If, as shown in Fig. 4, the anvil 2 is moved towards the workpiece, the support device 1 is guided backwards in the sleeve 8, i.e. into the processing device, the spring element 3 being compressed.
• the force of the spring element is selected so that the cold deformation of the locking ring is not yet hindered, but after the locking ring bolt has been torn off at the predetermined breaking point 30, sufficient force is available to remove the anvil 2 from the locking ring 40 with the aid of the spring element 3 to release stored force.
• This force of the spring element 3 is advantageously 1.5 to 3 kN.
• the support device 1 does of course not have to be designed as a concentric sleeve. Likewise, for example, polygonal cross sections or an openwork shape are conceivable, in which the support is carried out only on a few points on the workpiece 22.
• locking ring bolt systems can be processed on the much simpler, lighter and cheaper mandrel break riveting device.
• the processing speed can be increased by a third compared to the prior art.
• Locking bolts can be reduced by more than half with the device according to the invention.
• the processing of the locking bolt systems and the manufacture of the processing device become more cost-effective.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Insertion Pins And Rivets (AREA)
• Clamps And Clips (AREA)
• Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
• Dowels (AREA)
• Forging (AREA)
• Automatic Assembly (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=7937105

Family Applications (1)

Country Status (8)

Families Citing this family (5)

Family Cites Families (4)

• 2000
  • 2000-02-10 DE DE20002354U patent/DE20002354U1/de not_active Expired - Lifetime
• 2001
  • 2001-02-06 ES ES01911422T patent/ES2236188T3/es not_active Expired - Lifetime
  • 2001-02-06 DE DE50104525T patent/DE50104525D1/de not_active Expired - Lifetime
  • 2001-02-06 EP EP01911422A patent/EP1169152B1/fr not_active Expired - Lifetime
  • 2001-02-06 AT AT01911422T patent/ATE282492T1/de not_active IP Right Cessation
  • 2001-02-06 JP JP2001557711A patent/JP2003522027A/ja active Pending
  • 2001-02-06 WO PCT/DE2001/000444 patent/WO2001058620A1/fr active IP Right Grant
  • 2001-02-06 US US09/958,264 patent/US20020157226A1/en not_active Abandoned
  • 2001-02-06 AU AU40458/01A patent/AU4045801A/en not_active Abandoned

Non-Patent Citations (1)

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