US3871223A - Swaging machine - Google Patents

Swaging machine Download PDF

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Publication number
US3871223A
US3871223A US429687A US42968773A US3871223A US 3871223 A US3871223 A US 3871223A US 429687 A US429687 A US 429687A US 42968773 A US42968773 A US 42968773A US 3871223 A US3871223 A US 3871223A
Authority
US
United States
Prior art keywords
hammers
bearing
path
sliding member
housing
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
US429687A
Other languages
English (en)
Inventor
Bruno Kralowetz
Gottfried Blaimschein
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 Gesellschaft fuer Fertigungstechnik und Maschinenbau AG
Original Assignee
GFM Gesellschaft fuer Fertigungstechnik und Maschinenbau 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 GFM Gesellschaft fuer Fertigungstechnik und Maschinenbau AG filed Critical GFM Gesellschaft fuer Fertigungstechnik und Maschinenbau AG
Application granted granted Critical
Publication of US3871223A publication Critical patent/US3871223A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides
    • B30B15/041—Guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/04—Frames; Guides
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/068—Drive connections, e.g. pivotal

Definitions

  • the machine serves for a continuous swaging of elongated workpieces moving along a predetermined path and comprises a machine housing surrounding said path, a plurality of hammers which are similar to connecting rods and mounted in said housing, a plurality of eccentrics, each of which is operatively connected to one of said hammers and rotatable to impart to said hammers a reciprocating motion toward and away from said path in a direction which is radial to said path, and an oscillating motion, and a plurality of slide bearings associated with respective ones of said hammers and permitting of said reciprocating and oscillating motions of said hammers relative to said housing.
  • Each of said slide bearings comprises a sliding member forming a bearing shell, guide means mounted in said housing and adapted to guide said sliding member in its longitudinal direction toward and away from said .path, and a bearing member which is rigid with the associated hammer and has a curved bearing surface extending in and in bearing contact with said bearing shell to permit of said oscillating motion of said hammer relative to said sliding member.
  • This invention relates to a swaging machine for a continuous swaging of continuous elongated or rodshaped workpieces with hammers which are similar to connecting rods, driven by eccentricsand guided in slide bearings and which in addition to the radial swaging motion toward and away from the workpiece perform an oscillating motion.
  • each hammer forms the spider of an elliptic chuck, in which a link which is mounted on the eccentric shaft is slidable to perform a reciprocating movement transversely to the bearing bushing or the like of the machine housing and axis of the hammers and said link is positively connected to the spider by meshing helical teeth.
  • a rotation of the eccentric shaft does not only impart to the hammer an up-and-down motion but owing to the meshing helical teeth also an oscillating motion.
  • a slide bearing for the hammer is secured to the housing and ensures that the axis about which the hammer oscillates extends through the axis of the workpiece and the hammer as a result of its oscillation advances the workpiece to be swaged.
  • the slide bearings for the hammers similar to connecting rods are very important because they must permit not only of a linear reciprocating motion but also of a pivotal movement of the hammer stem guided by them.
  • Such bearings have previously been provided with a bearing member having a spherical bearing surface, which rests in a bearing shell which is firmly inserted in the machine housing.
  • the reciprocating hammer stem slides in a central bore of the bearing member and because the latter is rotatable the hammer stem can perform an oscillating motion relative to the bearing shell although said oscillating motion can be performed only about the center of the bearing.
  • each slide bearing comprises a sliding member, which is longitudinally slidable in a which forms a bearing shell, which receives a cylindrical or spherical bearing member, which is rigidly connected to the hammer.
  • this sliding member Owing to the design of this sliding member the-two movements are separated from each other and are respectively guided by the pivot bearing formed by the bearing member and the sliding member, and by the linear guide bearing formed by the sliding member and the bearing bushing.
  • a single bearing for guiding both motions of the hammer separate bearings are provided for the respective motions. This results in the advantage that the center of the oscillating motion always has a fixed relation to the hammer so that the link of the elliptic chuck need no longer be divided.
  • the division of the slide bearing also enables aksolution to the sealing problem because the linear guide bearing and the pivot bearing can be sealed independently of each other.
  • FIGS. 1 and 2 are sectional views showing part of a swaging machine and respectively taken on line I I of FIG. 2 and line IIII of FIG. 1.
  • a machine housing 1 contains hammers 2, which are .similar to connecting rods and extendradially to the axis of the workpiece and are driven by eccentric shafts 3 which are parallel to the axis of the workpiece
  • the eccentric shafts 3 are eccentrically mounted in adjusting housings 4, which are rotatable to change the distance from the axes of the eccentric shafts to the axis of the workpiece so that the stroke position of the ham mer is changed.
  • Each hammer 2 constitutes the spider 5 of an elliptic chuck.
  • This spider is provided with cylindrical guiding surfaces 6, 7.
  • links 9 carried by an eccentric 8 are slidable along cylindrical guiding surfaces 6, 7.
  • the spider 5 and the link 9 of the elliptic chuck have meshing helical teeth 10.
  • Each hammer 2 has a guide extension 11, which cooperates with a rail 12, which is fixed to the housing. Spacing rings 19 are provided to prevent a yielding of the link 9 in the direction of the axis of the eccentric 8.
  • the eccentric 8 reciprocates the link 9 in the spider 5 so that the hammer 2 is reciprocated toward and away from the workpiece and, owing to the helical teeth connecting the link. and the spider and the fact that the hammer is guided by the rail 12, the hammer is caused to oscillate in a plane which is defined by the axis of the workpiece and the axis of the rail 12.
  • a slide bearing is required which permits the hammer to perform these combined linear and oscillating motions.
  • this slide bearing comprises a bearing bushing 13, which is inserted in the machine housing 1 and in which a sliding member 14 is longitudinally slidable.
  • the sliding member 14 forms a bearing shell 15, which receives a spherical surface of a bearing member 16, which is rigidly connected to the hammer 2.
  • a bellows seal 17 is provided between the sliding member 14 and the hammer 2.
  • An annular seal 18 is provided between the sliding member and the machine housing 1.
  • the bearing member and the sliding member constitute a pivot bearing for the hammer.
  • the sliding member and the bearing bushing forma linear guide bearing. It is appar ent that there is a separate bearing for each of the two motions'of the hammers so that each bearing can be sealed in a simple manner.
  • the main advantage afforded by the separation of the bearings resides in the design of the bearing member which is fixed to the hammer and together with the sliding member constitutes the pivot bearing. This ensures that the distance between the center of the oscillating motion of the hammer and the cylindrical guiding surfaces of the spider and link of the elliptic chuck remains constant so that a simple integral link will be sufficient.
  • a swaging machine for a continuous swaging of elongated workpieces moving along a predetermined path which comprises a machine housing surrounding said path,
  • each of said slide bearings comprising a sliding member forming a bearing shell
  • each of said guide means comprises a bearing bushing in which said sliding member is guided in its longitudinaldirection.
  • a swaging machine as set forth in claim 1 which comprises a plurality of bellows seals, each of which is disposed between the sliding member of one of said bearings and the hammer associated therewith, and a plurality of annular seals, each of which is disposed between one of said sliding members and said housmg.
  • each of said hammers constitutes a spider of an elliptic chuck
  • each ofsaid eccentrics is non-rotatably connected to an eccentric shaft, which extends parallel to said path
  • each of said elliptic chucks comprises an integral link member, which is mounted on one ofsaid eccentric shafts and longitudinally slidable along the same,
  • each of said elliptic chucks have meshing helical teeth, whereby upon a rotation of said eccentric shafts said eccentrics impart to said hammers said reciprocating motion and said links and meshing teeth impart to said hammers said-oscillating motion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Support Of The Bearing (AREA)
  • Press Drives And Press Lines (AREA)
  • Massaging Devices (AREA)
US429687A 1973-01-10 1973-12-28 Swaging machine Expired - Lifetime US3871223A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT17573A AT318353B (de) 1973-01-10 1973-01-10 Schmiedemaschine

Publications (1)

Publication Number Publication Date
US3871223A true US3871223A (en) 1975-03-18

Family

ID=3483552

Family Applications (1)

Application Number Title Priority Date Filing Date
US429687A Expired - Lifetime US3871223A (en) 1973-01-10 1973-12-28 Swaging machine

Country Status (7)

Country Link
US (1) US3871223A (de)
JP (1) JPS5332782B2 (de)
AT (1) AT318353B (de)
DD (1) DD108916A5 (de)
DE (1) DE2361521C3 (de)
FR (1) FR2213117B1 (de)
GB (1) GB1398699A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022424A (en) * 1975-09-29 1977-05-10 General Electric Company Shaft bearing and seals for butterfly valves
US4229963A (en) * 1978-05-26 1980-10-28 Savinov Evgeny A Machine for noncutting metal shaping
US4497195A (en) * 1981-11-16 1985-02-05 Firma Gfm Gesellschaft Fur Fertigungstechnik Und Maschinenbau Gesellschaft M.B.H. Swaging machine
US5061087A (en) * 1990-10-15 1991-10-29 Beloit Corporation Bearing apparatus for a doctor journal
US5693159A (en) * 1991-04-15 1997-12-02 United Technologies Corporation Superalloy forging process
US6308552B1 (en) * 1998-12-09 2001-10-30 Gfm Betteiligungs- Und Management Gmbh & Co. Kg Forging machine
KR20180077237A (ko) * 2015-11-20 2018-07-06 에스엠에스 그룹 게엠베하 슬라이딩 블록을 포함한 경로 제어식 프레스

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62218888A (ja) * 1986-03-20 1987-09-26 Tokico Ltd センサ装置
JP3913598B2 (ja) * 2002-04-16 2007-05-09 アイダエンジニアリング株式会社 プレス機械のスライドガイド装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2562643A (en) * 1946-11-13 1951-07-31 Saxer August Multiple hammer
US2932197A (en) * 1958-09-10 1960-04-12 Appel Process Ltd Forming machines
US3596497A (en) * 1968-06-25 1971-08-03 Gfm Fertigungstechnik Apparatus for the continuous swaging of continuous workpieces
US3670556A (en) * 1969-06-16 1972-06-20 Bruno Kralowetz Tool for use in a swaging machine
US3690142A (en) * 1969-12-19 1972-09-12 Gfm Fertigungstechnik Swaging machine for a continuous swaging of rod-shaped workpieces

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR959119A (de) * 1950-03-24

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2562643A (en) * 1946-11-13 1951-07-31 Saxer August Multiple hammer
US2932197A (en) * 1958-09-10 1960-04-12 Appel Process Ltd Forming machines
US3596497A (en) * 1968-06-25 1971-08-03 Gfm Fertigungstechnik Apparatus for the continuous swaging of continuous workpieces
US3670556A (en) * 1969-06-16 1972-06-20 Bruno Kralowetz Tool for use in a swaging machine
US3690142A (en) * 1969-12-19 1972-09-12 Gfm Fertigungstechnik Swaging machine for a continuous swaging of rod-shaped workpieces

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022424A (en) * 1975-09-29 1977-05-10 General Electric Company Shaft bearing and seals for butterfly valves
US4229963A (en) * 1978-05-26 1980-10-28 Savinov Evgeny A Machine for noncutting metal shaping
US4497195A (en) * 1981-11-16 1985-02-05 Firma Gfm Gesellschaft Fur Fertigungstechnik Und Maschinenbau Gesellschaft M.B.H. Swaging machine
US5061087A (en) * 1990-10-15 1991-10-29 Beloit Corporation Bearing apparatus for a doctor journal
US5693159A (en) * 1991-04-15 1997-12-02 United Technologies Corporation Superalloy forging process
US6308552B1 (en) * 1998-12-09 2001-10-30 Gfm Betteiligungs- Und Management Gmbh & Co. Kg Forging machine
KR20180077237A (ko) * 2015-11-20 2018-07-06 에스엠에스 그룹 게엠베하 슬라이딩 블록을 포함한 경로 제어식 프레스
KR20180079402A (ko) * 2015-11-20 2018-07-10 에스엠에스 그룹 게엠베하 슬라이딩 블록을 포함한 경로 제어식 프레스
US11186056B2 (en) 2015-11-20 2021-11-30 Sms Group Gmbh Mechanical press with sliding block

Also Published As

Publication number Publication date
DE2361521B2 (de) 1977-07-28
DD108916A5 (de) 1974-10-12
GB1398699A (en) 1975-06-25
JPS49109249A (de) 1974-10-17
DE2361521A1 (de) 1974-07-11
DE2361521C3 (de) 1978-03-23
JPS5332782B2 (de) 1978-09-09
FR2213117A1 (de) 1974-08-02
FR2213117B1 (de) 1978-12-29
AT318353B (de) 1974-10-10

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