EP1020241A2 - Machine à rétreindre - Google Patents

Machine à rétreindre Download PDF

Info

Publication number
EP1020241A2
EP1020241A2 EP99890378A EP99890378A EP1020241A2 EP 1020241 A2 EP1020241 A2 EP 1020241A2 EP 99890378 A EP99890378 A EP 99890378A EP 99890378 A EP99890378 A EP 99890378A EP 1020241 A2 EP1020241 A2 EP 1020241A2
Authority
EP
European Patent Office
Prior art keywords
pressure
hammer
support ring
axis
forging
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
EP99890378A
Other languages
German (de)
English (en)
Other versions
EP1020241A3 (fr
EP1020241B1 (fr
Inventor
Alfred Seeber
Blaimschein Gottfried
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.)
GFM Beteiligungs und Management GmbH and Co KG
Original Assignee
GFM Beteiligungs und Management GmbH and Co KG
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 GFM Beteiligungs und Management GmbH and Co KG filed Critical GFM Beteiligungs und Management GmbH and Co KG
Publication of EP1020241A2 publication Critical patent/EP1020241A2/fr
Publication of EP1020241A3 publication Critical patent/EP1020241A3/fr
Application granted granted Critical
Publication of EP1020241B1 publication Critical patent/EP1020241B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/14—Forging machines working with several hammers

Definitions

  • the invention relates to a circular kneading machine for round forging rod-shaped or tubular workpieces with one in radial recesses the through axis of the workpiece rotatably and driveably mounted forging box Hammer units guided in a stroke-movable manner from outer hammer plungers and internal hammer tools and with it on the forge box surrounding coaxial support ring supporting pressure members, the forging box and / or the support ring can be driven circumferentially relative to one another and the pressure members on the head part in the orbit of the pressure members protruding hammer plunger of the hammer units at the respective Move past in the sense of an inward pressure pulse.
  • pressure rollers serve as pressure elements in the annular space between the forging box and support ring revolve around the cam-like head part of the hammer plunger roll over, causing the centrifugal and / or spring force to move radially outwards impacted hammer units are pressed in, which Pressure impulses as a forming force on the forging tools and thus on transfer the workpiece. Since it is on during the action of the pressure rollers the plunger head parts only come into line contact and the power flow when Forging over these line areas must occur between the tappet head part and pressure rollers on very high surface pressures, which despite special Surface hardening and Like. To material overloads with strong signs of wear and lead to short downtimes. There are also difficulties in the stroke position adjustment of the hammer units, which stroke position adjustment a cumbersome insertion of wedge plates or the like between the separate parts of the hammer plungers and hammer tools forming the hammer units required.
  • the invention is therefore based on the object of a circular kneading machine to create the type described above, which are characterized by their robust and low-wear Distinguished linear actuator and also the prerequisite for one offers rational stroke position adjustment.
  • the invention solves this problem in that the pressure members from one Pressure plate exist, the rocker-like around a parallel to the pass axis Rocker axis can be swiveled to a limited extent on the end face of one in the support ring rotatably seated pressure stamp is articulated, and the hammer plunger as Head part assigned to the pressure plates, rocker-like around one to the passage axis parallel rocker axis with limited pressure swiveling counter pressure plate have pressure plates and counter-pressure plates interacting sliding surfaces form and via return springs in the direction of one with respect to the respective Relative rotation of the forging box and support ring inclined forward Starting position can be pressurized.
  • the pressure stamp longitudinally adjustable used in the support ring so that by a longitudinal adjustment this pressure stamp the radial position of the pressure plates opposite the Pass axis can be changed, which at the same time the radial position of the Hammer units within the recesses in the forging box changed and therefore brings a stroke position adjustment with it.
  • the hammer plungers protrude the hammer units through the recesses in the forging box through and form a tool holder at their workpiece end for form-fitting mounting of the hammer tool. Since the division of the Hammer units in their own plungers and hammer tools for adjusting the stroke position is no longer necessary, can be positively assembled Hammer units are used, the higher because of their compactness Allow stroke numbers and also because of the free outside of the blacksmith box accessible tools simplify tool changing.
  • the hammer rams are opposite the recesses sealed with peripheral seals, which is sufficient lubrication of the Drive and guide parts allowed without risk of contamination.
  • the hammer tappets have a section with a rectangular cross section on the head part side and on the tool side a section with a round cross section, the hammer units can be guided through the headboard on a non-rotatable guide Section without great construction effort with the help of simple round seals or Seal well in the area of the tool-side section.
  • a circular kneading machine 1 for round forging rod-shaped or tubular Workpieces consist of a in a machine frame 2 about the pass axis A of the workpiece rotatably and driveably mounted forging box 3, in which in radial recesses 4 hammer units 5 from outer forging rams 6 and inner hammer tools 7 are guided in a stroke-movable manner.
  • the Machine frame 2 forms a coaxially surrounding the forging box 3 - Support ring 8, which can also be rotated and driven as a separate part in the machine frame could be stored in which support ring 8 evenly distributed on the circumference arranged plunger 9 sit non-rotatably, on the front by one to Pass-through axis A parallel rocking axis B can be swiveled to a limited extent Pressure plates 10 are articulated and deal with a circular cylindrical Support bearing shell 11 on a corresponding bearing body 12.
  • the Forging plungers 6 of the hammer units 5 have the pressure plates as the head part 10 assigned, also rocker-like around one to the pass axis Parallel rocking axis C counter-pressure plate 13 that can be pivoted to a limited extent on, the plunger with a cylindrical bearing body 14 in a corresponding Bearing shell 15 of the pressure plate 13 engages.
  • Printing plates 10 and Counter pressure plates 13 form interacting sliding surfaces 16, 17 of straight, in the direction of rotation aligned generators E and are via return springs 18, 19 in the direction of a relative rotation R of forge box 3 and support ring 8 forward inclined starting position loaded (Fig. 2).
  • the hammer units 5 are limited by stops due to centrifugal force moved radially outward, which opening movement can also be supported by springs, not shown, so that the on the hammer plungers 6 counter pressure plates 13 articulated into the area protrude from the pressure plates 9 supporting printing plates 10 and Pressure plates and counter pressure plates in their respective starting positions meet (Fig. 2).
  • the sliding surfaces 16, 17 lie in conformity with one another and allow the hammer units to move past the Stamp 9 a relative sliding against each other, at the same time with the The pressure plates and counter pressure plates slide around their rocking axes B, C.
  • the starting position can be pivoted out until it is in radial alignment the rocker axes B, C have reached the central position (Fig. 1) and then at Swiveling into the end position opposite the starting position Lose contact with each other. Because of these rocking movements and the moving past each other of pressure plates and counter pressure plates changes the radial distance between the two rocking axes B, C, so that because the pressure plates supported in the support ring 8 so as to be fixed against displacement the pressure plates 13 move the hammer units 5 radially inwards must and a pressure pulse arises, which acts as a forming force transfers the forging tools and thus to the workpiece.
  • the pressure stamps are 9 used in the support ring 8 longitudinally and via a screw drive 20 adjustable, the plunger 9 a threaded portion 21st have, on which an adjusting nut 22 is rotatably seated in the support ring 8th is held in place.
  • the adjusting nut 22 is externally with worm teeth 23 provided that rotates via a screw 24 can be, the worm with a drive gear 25 on a common shaft parallel to the pass axis A sits.
  • These drive gears can each have their own drives or as planet gears with a common central wheel 26 are driven, which an actuation of Screw drive 20 and thus a position adjustment of the pressure stamp 9 with brings and therefore forced over the interacting pressure plates 10 and pressure plates 13 and the hammer units 5 radially adjusted and leads to the desired stroke position change.
  • the hammer plungers 6 of the hammer units 5 have a section 61 Rectangular cross section and a section 62 with a round cross section, which Section 61 receives the pressure plates 13 and rotatably in the recesses 4 of the forging box 3 is guided, the section 62, however, is with a Circumferential seal 27 sealed against the recess 4 and instructs a tool holder 28 at its end protruding from the recess for positive insertion of the hammer tool 7. It follows a stamp-like hammer unit with secure non-rotatable longitudinal guide and integrity sealing, what best lubrication conditions without risk of contamination brings with it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
EP99890378A 1998-12-07 1999-12-07 Machine à rétreindre Expired - Lifetime EP1020241B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0205098A AT406646B (de) 1998-12-07 1998-12-07 Rundknetmaschine
AT205098 1998-12-07

Publications (3)

Publication Number Publication Date
EP1020241A2 true EP1020241A2 (fr) 2000-07-19
EP1020241A3 EP1020241A3 (fr) 2001-10-31
EP1020241B1 EP1020241B1 (fr) 2004-02-25

Family

ID=3526705

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99890378A Expired - Lifetime EP1020241B1 (fr) 1998-12-07 1999-12-07 Machine à rétreindre

Country Status (4)

Country Link
US (1) US6244087B1 (fr)
EP (1) EP1020241B1 (fr)
AT (1) AT406646B (fr)
DE (1) DE59908644D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016100599A1 (de) 2016-01-14 2017-07-20 Sms Group Gmbh Schmiedemaschine und Schmiedeverfahren

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7969689B2 (en) 2007-08-14 2011-06-28 Seagate Technology Llc Spacer keys with pivoting supports
UA95431C2 (ru) * 2010-12-16 2011-07-25 Виктор Андреевич ЛАЗОРКИН Четырехбойковое ковочное устройство для ковочных прессов
CN105127346A (zh) * 2015-09-02 2015-12-09 太仓市顺昌锻造有限公司 一种简易锻造设备
CN106493243A (zh) * 2016-09-29 2017-03-15 汪卓杰 一种方管压花机
CN109175184B (zh) * 2018-10-18 2023-10-27 无锡市星达石化配件有限公司 一种便于收集废料的法兰盘锻造台
CN109201989A (zh) * 2018-10-30 2019-01-15 沈阳重机重矿机械设备制造有限公司 一种分传动直驱式四锤头精锻机的锤杆机构
CN114433769B (zh) * 2022-04-07 2022-06-21 宁波巨航冷挤科技有限公司 一种轻量化电机轴成型设备及方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US279124A (en) * 1883-06-12 Wire-pointing machine
DE916487C (de) * 1951-11-10 1954-08-23 Georg Welsch Antrieb fuer Haemmermaschinen
US5411521A (en) * 1992-03-04 1995-05-02 American Cyanamid Company Medical suturing device, a single-strike die mechanism, and a method of using said die mechanism for forming the medical suturing device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US279124A (en) * 1883-06-12 Wire-pointing machine
DE916487C (de) * 1951-11-10 1954-08-23 Georg Welsch Antrieb fuer Haemmermaschinen
US5411521A (en) * 1992-03-04 1995-05-02 American Cyanamid Company Medical suturing device, a single-strike die mechanism, and a method of using said die mechanism for forming the medical suturing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016100599A1 (de) 2016-01-14 2017-07-20 Sms Group Gmbh Schmiedemaschine und Schmiedeverfahren
DE102016100599B4 (de) 2016-01-14 2018-05-17 Sms Group Gmbh Schmiedemaschine und Schmiedeverfahren

Also Published As

Publication number Publication date
AT406646B (de) 2000-07-25
US6244087B1 (en) 2001-06-12
DE59908644D1 (de) 2004-04-01
ATA205098A (de) 1999-12-15
EP1020241A3 (fr) 2001-10-31
EP1020241B1 (fr) 2004-02-25

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