EP0927585B1 - Riveting tool with a traction mandrel - Google Patents

Riveting tool with a traction mandrel Download PDF

Info

Publication number
EP0927585B1
EP0927585B1 EP98123420A EP98123420A EP0927585B1 EP 0927585 B1 EP0927585 B1 EP 0927585B1 EP 98123420 A EP98123420 A EP 98123420A EP 98123420 A EP98123420 A EP 98123420A EP 0927585 B1 EP0927585 B1 EP 0927585B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
traction
enclosing
nozzle
riveting tool
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 - Lifetime
Application number
EP98123420A
Other languages
German (de)
French (fr)
Other versions
EP0927585B8 (en
EP0927585A3 (en
EP0927585A2 (en
Inventor
Manfred Schwab
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.)
Masterfix Products BV
Original Assignee
Masterfix Products BV
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 Masterfix Products BV filed Critical Masterfix Products BV
Publication of EP0927585A2 publication Critical patent/EP0927585A2/en
Publication of EP0927585A3 publication Critical patent/EP0927585A3/en
Publication of EP0927585B1 publication Critical patent/EP0927585B1/en
Application granted granted Critical
Publication of EP0927585B8 publication Critical patent/EP0927585B8/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21J15/02—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

Definitions

  • the invention relates to a riveting tool with a traction mandrel and a device for clamping a stem to said traction mandrel, said traction mandrel having a traction sleeve for connecting a stem to said traction mandrel.
  • a riveting tool of the kind mentioned above is disclosed in EP-A-0 325 669.
  • a riveting tool of the kind initially mentioned comprising an enclosing sleeve loosely fitted to said traction sleeve and mutually secured with said traction sleeve against turning; said traction sleeve having a peripheral recess, a compression spring being placed in said recess between said enclosing sleeve and said traction sleeve; said traction sleeve further having an inner thread into which said stem having a collar is screwed, said collar having at least one flattened plane on its outer circumference corresponding to an inner peripheral surface of an adjacent part of the enclosing sleeve surrounding said collar; the device being fitted to said traction mandrel in the nozzle of the riveting tool, the nozzle having a passage opening in the area of the enclosing sleeve; said enclosing sleeve being movable against the pressure of the compression spring in the direction of the rear part of
  • the passage opening in the nozzle is covered with a sliding covering sleeve, between which and the nozzle is a protective flexible O-ring, situated on the side of the passage opening in the direction of the outer end of the nozzle.
  • the device is provided with a stop to prevent the covering sleeve slipping from the nozzle.
  • the traction sleeve can be an integral part of the traction mandrel.
  • the advantage of the invention is that, without it being necessary to use a tightening instrument (a key), it is possible to change, easily and very quickly, the mandrels for nut and screw rivets in the riveting tool. Work productivity is thereby substantially increased. Moreover, in order that harmful injuries should not occur during operation of the riveting tool, the passage opening in the nozzle is covered with a protective sliding covering sleeve.
  • a further advantage is the fact that, thanks to the ease with which the stem for nut or screw rivets can be attached to the fast clamping system, the invention makes it possible to eliminate problems with non-observance of manufacturing tolerance, especially of alignment of the rotatable parts of the riveting tool.
  • Figure 1 shows in section the front part of the riveting tool with the clamping device in the position where the passage opening in the nozzle is covered by the protective sliding covering sleeve.
  • Figure 2 shows the clamping device with the sliding covering sleeve slipped to the outer end of the riveting tool, when the passage opening in the nozzle is uncovered and it is thus possible to easily grasp with the fingers the enclosing sleeve, push it back against the spring to the stop and unscrew the stem for nut or screw rivets.
  • Figure 3 is a schematic representation of the body of the stem for screw rivets.
  • a fast clamping system for blind nut and screw rivets which can have the following arrangement.
  • a lock-nut 9 is screwed to the threaded traction mandrel 13, and a traction sleeve 11 with a recess is tightly fitted to the lock-nut 9 and is inserted or loosely fitted in a enclosing sleeve 12.
  • the traction sleeve 11 is now, in the position described, firmly connected to the traction mandrel 13 (alternatively, it can be an integral part of the traction mandrel 13) so as to continually turn with it.
  • the traction sleeve 11 and the enclosing sleeve 12 are mutually secured against turning.
  • the actual means of securing can be effected by a whole range of known methods.
  • the enclosing sleeve 12 is axially shiftable in the direction of the rear part of the tool, but secured against axial shifting relative to the traction sleeve 11, for example there can be a recess in the enclosing sleeve 12 into which is inserted a safety ring resting against the stepped end of the traction sleeve 11.
  • a compression spring 10 which is fitted between the stepped end of the traction sleeve 11, to be more precise, between the safety ring tightly fitted to it, located in the recess in the enclosing sleeve 12, and the lock-nut 9. That whole assembly is screwed to the traction mandrel 13 and tightened up to the lock-nut 9.
  • the outer axial positions of the enclosing sleeve 12 are defined by the recess in the lock-nut 9, the stepped end of the traction sleeve 11 and the position of the safety ring within the enclosing sleeve 12.
  • the traction sleeve 11 is further provided with an inner thread, into which is screwed the stem 1, 4 (of the nut or screw rivets), whose collar has at least one flattened plane on its outer circumference corresponding to an inner peripheral surface of the adjacent part of the enclosing sleeve 12 (for example, if the enclosing sleeve 12 has its inner surface in the shape of a hexagon, the traction sleeve 11 has an outer surface with a corresponding hexagonal shape).
  • the fast clamping system is fitted, together with the traction mandrel 13, in the front nozzle 5 of the riveting tool which has a passage opening in the area of the enclosing sleeve 12.
  • the passage opening in the nozzle 5 is covered by a sliding covering sleeve 7, made from plastic for example, between which and the nozzle 5 there is a protective flexible O-ring, 8, situated on the side of the passage opening, in the direction of the outer end of the nozzle 5.
  • the device is further provided with a stop 6 (for example, another 0-ring, to prevent the covering sleeve 7 slipping from the nozzle 5.
  • an extension 2 with a lock-nut 3 screwed to the thread of the extension 2 can be screwed from the front, the extension having a central passage opening for the stems 1, 4, which can determine the length of the stem 1, 4 for nut or screw rivets, protruding from the tool.
  • the extension 2 is unscrewed while changing the stem 1, 4 to which the nut or screw rivet is screwed.
  • the covering sleeve 7 slips in a forward direction from the riveting tool and, through the access opening in the nozzle 5, it is possible to grasp with the fingers the enclosing sleeve 12 and gradually draw it back against the pressure of the compression spring 10 in the direction of the rear part of the tool. In that position it is easy to unscrew the stem 1 or 4 by hand from the clamping system. A further stem 1 or 4 as required is then inserted and is loosely screwed by hand to the traction sleeve 11.
  • the enclosing sleeve 12 is then released (the spring 10 pushes it back to its original position) and by unscrewing the stem 1 or 4 slightly from the traction sleeve 11, the outer peripheral surfaces of the collar of the stem 1 or 4 line up with the inner peripheral surface of the enclosing sleeve 12.
  • the covering sleeve 7 is retracted again and an extension 2 is screwed to the appropriate corresponding stem 1, 4 (for each dimension of stem there is an appropriate corresponding dimension of extension).
  • the invention can be used not only in hand riveting equipment, but also in pneumatic hydraulic equipment or battery-operated equipment, as the case may be.

Abstract

In a device for clamping a stem to the traction mandrel of a riveting tool, the traction mandrel has a traction sleeve (11) loosely fitted in the enclosing sleeve (12) and mutually secured with the enclosing sleeve against axial shifting and turning. Between the enclosing sleeve and the peripheral recess in the traction sleeve (11) there is a compression spring (10). The traction sleeve (11) has an inner thread, onto which is screwed the stem (1), whose collar has at least one flattened plane on its outer circumference corresponding to an inner peripheral surface of the adjacent part of the enclosing sleeve (12). The device is fitted together with the traction mandrel (13) in the nozzle (5) of the riveting tool, wherein the nozzle has a passage opening in the area of the enclosing sleeve (12). Without the use of a tightening instrument as for example a key, it is possible to change easily and very quickly the mandrels for rivets in the riveting tool. <IMAGE>

Description

  • The invention relates to a riveting tool with a traction mandrel and a device for clamping a stem to said traction mandrel, said traction mandrel having a traction sleeve for connecting a stem to said traction mandrel.
  • A riveting tool of the kind mentioned above is disclosed in EP-A-0 325 669.
  • At the present time mandrels for nut and screw rivets in riveting tools are tightened by turning them with a key to their frontal stop either at the lock-nut or the recess on the traction mandrel of the riveting tool. Tightening is necessary in order to prevent their accidental release (unscrewing) from the traction mandrel. This tightening operation requires a certain amount of time and an implement (a key) all of which lengthens the time required to replace the mandrels.
  • The above disadvantages are eliminated according to this invention by a riveting tool of the kind initially mentioned comprising an enclosing sleeve loosely fitted to said traction sleeve and mutually secured with said traction sleeve against turning; said traction sleeve having a peripheral recess, a compression spring being placed in said recess between said enclosing sleeve and said traction sleeve; said traction sleeve further having an inner thread into which said stem having a collar is screwed, said collar having at least one flattened plane on its outer circumference corresponding to an inner peripheral surface of an adjacent part of the enclosing sleeve surrounding said collar; the device being fitted to said traction mandrel in the nozzle of the riveting tool, the nozzle having a passage opening in the area of the enclosing sleeve; said enclosing sleeve being movable against the pressure of the compression spring in the direction of the rear part of the tool by grasping and drawing it with fingers through said passage opening.
  • The passage opening in the nozzle is covered with a sliding covering sleeve, between which and the nozzle is a protective flexible O-ring, situated on the side of the passage opening in the direction of the outer end of the nozzle. The device is provided with a stop to prevent the covering sleeve slipping from the nozzle. The traction sleeve can be an integral part of the traction mandrel.
  • The advantage of the invention is that, without it being necessary to use a tightening instrument (a key), it is possible to change, easily and very quickly, the mandrels for nut and screw rivets in the riveting tool. Work productivity is thereby substantially increased. Moreover, in order that harmful injuries should not occur during operation of the riveting tool, the passage opening in the nozzle is covered with a protective sliding covering sleeve.
  • A further advantage is the fact that, thanks to the ease with which the stem for nut or screw rivets can be attached to the fast clamping system, the invention makes it possible to eliminate problems with non-observance of manufacturing tolerance, especially of alignment of the rotatable parts of the riveting tool.
    • Brief description of the drawings
  • The invention can be described in more detail by means of the attached drawings. Figure 1 shows in section the front part of the riveting tool with the clamping device in the position where the passage opening in the nozzle is covered by the protective sliding covering sleeve. Figure 2 shows the clamping device with the sliding covering sleeve slipped to the outer end of the riveting tool, when the passage opening in the nozzle is uncovered and it is thus possible to easily grasp with the fingers the enclosing sleeve, push it back against the spring to the stop and unscrew the stem for nut or screw rivets. Figure 3 is a schematic representation of the body of the stem for screw rivets.
    • Description of the Preferred Embodiments
  • To the traction mandrel 13 of the riveting tool is attached a fast clamping system for blind nut and screw rivets which can have the following arrangement. A lock-nut 9 is screwed to the threaded traction mandrel 13, and a traction sleeve 11 with a recess is tightly fitted to the lock-nut 9 and is inserted or loosely fitted in a enclosing sleeve 12. The traction sleeve 11 is now, in the position described, firmly connected to the traction mandrel 13 (alternatively, it can be an integral part of the traction mandrel 13) so as to continually turn with it. The traction sleeve 11 and the enclosing sleeve 12 are mutually secured against turning. The actual means of securing, not illustrated in the attached drawings, can be effected by a whole range of known methods. For example, there can be an axial groove in the enclosing sleeve 12, into which a safety pin goes, inserted into the traction sleeve 11 (security against mutual turning). The enclosing sleeve 12 is axially shiftable in the direction of the rear part of the tool, but secured against axial shifting relative to the traction sleeve 11, for example there can be a recess in the enclosing sleeve 12 into which is inserted a safety ring resting against the stepped end of the traction sleeve 11. In the space between the enclosing sleeve 12 and the peripheral recess in the traction sleeve 11 there is provided a compression spring 10, which is fitted between the stepped end of the traction sleeve 11, to be more precise, between the safety ring tightly fitted to it, located in the recess in the enclosing sleeve 12, and the lock-nut 9. That whole assembly is screwed to the traction mandrel 13 and tightened up to the lock-nut 9. The outer axial positions of the enclosing sleeve 12 are defined by the recess in the lock-nut 9, the stepped end of the traction sleeve 11 and the position of the safety ring within the enclosing sleeve 12.
  • The traction sleeve 11 is further provided with an inner thread, into which is screwed the stem 1, 4 (of the nut or screw rivets), whose collar has at least one flattened plane on its outer circumference corresponding to an inner peripheral surface of the adjacent part of the enclosing sleeve 12 (for example, if the enclosing sleeve 12 has its inner surface in the shape of a hexagon, the traction sleeve 11 has an outer surface with a corresponding hexagonal shape).
  • The fast clamping system is fitted, together with the traction mandrel 13, in the front nozzle 5 of the riveting tool which has a passage opening in the area of the enclosing sleeve 12. The passage opening in the nozzle 5 is covered by a sliding covering sleeve 7, made from plastic for example, between which and the nozzle 5 there is a protective flexible O-ring, 8, situated on the side of the passage opening, in the direction of the outer end of the nozzle 5. The device is further provided with a stop 6 (for example, another 0-ring, to prevent the covering sleeve 7 slipping from the nozzle 5. Into the front nozzle 5 which is fastened to the front part of the riveting tool, an extension 2 with a lock-nut 3 (screwed to the thread of the extension 2) can be screwed from the front, the extension having a central passage opening for the stems 1, 4, which can determine the length of the stem 1, 4 for nut or screw rivets, protruding from the tool.
  • The extension 2 is unscrewed while changing the stem 1, 4 to which the nut or screw rivet is screwed. The covering sleeve 7 slips in a forward direction from the riveting tool and, through the access opening in the nozzle 5, it is possible to grasp with the fingers the enclosing sleeve 12 and gradually draw it back against the pressure of the compression spring 10 in the direction of the rear part of the tool. In that position it is easy to unscrew the stem 1 or 4 by hand from the clamping system. A further stem 1 or 4 as required is then inserted and is loosely screwed by hand to the traction sleeve 11. The enclosing sleeve 12 is then released (the spring 10 pushes it back to its original position) and by unscrewing the stem 1 or 4 slightly from the traction sleeve 11, the outer peripheral surfaces of the collar of the stem 1 or 4 line up with the inner peripheral surface of the enclosing sleeve 12. The covering sleeve 7 is retracted again and an extension 2 is screwed to the appropriate corresponding stem 1, 4 (for each dimension of stem there is an appropriate corresponding dimension of extension).
  • The invention can be used not only in hand riveting equipment, but also in pneumatic hydraulic equipment or battery-operated equipment, as the case may be.

Claims (5)

  1. Riveting tool with a traction mandrel (13) and a device for clamping a stem (1, 4) to said traction mandrel (13), said traction mandrel (13) having a traction sleeve (11) for connecting said stem (1, 4) to said traction mandrel, characterized in that an enclosing sleeve (12) is loosely fitted to said traction sleeve (11) and mutually secured with said traction sleeve (11) against turning; said traction sleeve (11) having a peripheral recess, a compression spring (10) being placed in said recess between said enclosing sleeve (12) and said traction sleeve (11); said traction sleeve (11) further having an inner thread into which said stem (1, 4) having a collar is screwed, said collar having at least one flattened plane on its outer circumference corresponding to an inner peripheral surface of an adjacent part of the enclosing sleeve (12) surrounding said collar; the device being fitted to said traction mandrel (13) in the nozzle (5) of the riveting tool, the nozzle (5) having a passage opening in the area of the enclosing sleeve (12); said enclosing sleeve (12) being movable against the pressure of the compression spring (10) in the direction of the rear part of the tool by grasping and drawing it with fingers through said passage opening.
  2. Riveting tool according to claim 1, characterized in that said compression spring (10) is fitted against a lock-nut (9) screwed to the traction mandrel (13).
  3. Riveting tool according to claims 1 or 2, characterized in that the enclosing sleeve (12) is secured against axial shifting relative to the traction sleeve (11) by means of a safety ring, fitted in a recess of the enclosing sleeve (12) and resting against a stepped end of the traction sleeve (11).
  4. Riveting tool according to any of the preceding claims 1 to 3, characterized in that the passage opening in the nozzle (5) is covered by a sliding covering sleeve (7), a protective flexible O-ring (8) is provided between said covering sleeve (7)and said nozzle (5) and situated on the side of the passage opening in the direction of the outer end of the nozzle (5), and a stop (6) being provided to prevent the covering sleeve (7) from slipping off the nozzle (5).
  5. Riveting tool according to any of the preceding claims 1 to 4, characterized in that the traction sleeve (11) is an integral part of the traction mandrel (13).
EP98123420A 1998-01-02 1998-12-09 Riveting tool with a traction mandrel Expired - Lifetime EP0927585B8 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ754098 1998-01-02
CZ754098 1998-01-02

Publications (4)

Publication Number Publication Date
EP0927585A2 EP0927585A2 (en) 1999-07-07
EP0927585A3 EP0927585A3 (en) 2004-10-27
EP0927585B1 true EP0927585B1 (en) 2006-04-26
EP0927585B8 EP0927585B8 (en) 2006-06-07

Family

ID=5468545

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98123420A Expired - Lifetime EP0927585B8 (en) 1998-01-02 1998-12-09 Riveting tool with a traction mandrel

Country Status (4)

Country Link
EP (1) EP0927585B8 (en)
AT (1) ATE324206T1 (en)
DE (1) DE69834311T2 (en)
ES (1) ES2262207T3 (en)

Cited By (2)

* 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
US11673243B2 (en) 2018-09-05 2023-06-13 Milwaukee Electric Tool Corporation Blind rivet nut-setting tool

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ12144U1 (en) * 2002-02-18 2002-03-28 Ms Nářadí, S.R.O. Clamping joint of exchangeable mandrel and pulling pin of a riveting tool and use of such clamping joint for hand-held riveting tool
DE102014117403A1 (en) 2014-11-27 2016-06-02 Tkr Spezialwerkzeuge Gmbh Mobile hydraulic tool
DE102014117401A1 (en) * 2014-11-27 2016-06-02 Tkr Spezialwerkzeuge Gmbh riveting tool
CN107775590B (en) * 2017-09-30 2019-05-07 安徽江淮汽车集团股份有限公司 A kind of timing chain lubricating nozzle press mounting tool
WO2023242380A1 (en) * 2022-06-16 2023-12-21 Newfrey Llc Transfer station

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4821555A (en) * 1988-01-27 1989-04-18 Lobster Tool Co., Ltd. Hydropneumatic gun for setting blind-rivet nuts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11673243B2 (en) 2018-09-05 2023-06-13 Milwaukee Electric Tool Corporation Blind rivet nut-setting tool
US11654475B2 (en) 2020-06-03 2023-05-23 Milwaukee Electric Tool Corporation Rivet setting tool

Also Published As

Publication number Publication date
DE69834311D1 (en) 2006-06-01
EP0927585B8 (en) 2006-06-07
DE69834311T2 (en) 2007-01-18
ATE324206T1 (en) 2006-05-15
EP0927585A3 (en) 2004-10-27
EP0927585A2 (en) 1999-07-07
ES2262207T3 (en) 2006-11-16

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