US3243988A - Frames of heavy machine tools particularly forging presses and the like - Google Patents

Frames of heavy machine tools particularly forging presses and the like Download PDF

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Publication number
US3243988A
US3243988A US288306A US28830663A US3243988A US 3243988 A US3243988 A US 3243988A US 288306 A US288306 A US 288306A US 28830663 A US28830663 A US 28830663A US 3243988 A US3243988 A US 3243988A
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United States
Prior art keywords
plates
stack
frames
retaining
machine tools
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Expired - Lifetime
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US288306A
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English (en)
Inventor
Groos Horst Hans
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.)
Schloemann AG
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Schloemann AG
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Publication date
Application filed by Schloemann AG filed Critical Schloemann AG
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Publication of US3243988A publication Critical patent/US3243988A/en
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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
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/04—Frames; Guides
    • 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
    • B30B15/048—Laminated frame structures

Definitions

  • This invention relates to a frame of laminar construction for heavy machine tools, particularly forging and like presses. It is already the practice to construct the frames of large forging presses which are too bulky and heavy to be moved by conventional means of transportation from laminar plates provided with holes for the insertion of tie rods for clamping the plates together. However, the holes in the plates Weaken the strength of the assemblies and they also have the drawback that the section modulus of the stack across the plates is less than that lengthwise of the plates.
  • the invention overcomes these objections by providing two retaining plates which embrace the faces of the stack of plates containing the plate edges, and which are held together by tie rods or the like extending outside the stack.
  • these retaining plates are so constructed that they also form the slideways for the press slide.
  • the longitudinal edges of the retaining plates may be formed with thick flanges between which the sides of the stack are compressed by key members.
  • Each plate in the stack may have the overall shape of a chain link and the upper and bottom yokes of the press frame may be arranged to rest in the ends of the openings in the chain-link-shaped plates of the stack.
  • FIG. 1 is a schematic vertical axial section of a press according to the invention, the section being taken on the line I-I in FIG. 2,
  • FIG. 2 is a section taken on the line ill-11 in FIG. 1 and FIG. 3 is a fragmentary section on a larger scale, taken on the line IIIHI in FIG. 1, of one of the upright columns of the press (the section comprising a quarter extending to the two principal horizontal axes 26a and 26b).
  • the two halves of the frame each consist of a stack of plates 1 shaped like a chain link, and each including two upright columns, united by top and bottom transverse elements.
  • the bottom yoke of the press rests in the lower end of the opening in the chain-link-shaped half frames.
  • This bottom yoke consists of upright plates 2 and a bearer plate 3.
  • the bearer plate 3 carries two cylinders 4 containing press plungers 5.
  • the vertical centre axis of the press is indicated in FIGS. 1 and 3 by 25, whereas the two horizontal symmetry axes in FIG. 3 are marked 26:: and 2612 respectively.
  • the two press plungers support a common squeezing plate 6 which in conjunction with the upright plates 7 and a casting 8 forms the slide.
  • the yoke at the head of the press is formed by a stack of plates and a plate 10. The work is forged between parts 8 and 10.
  • casting 8 has lateral extensions 11, each embracing one of the two columns 1a of the two halves of the frame.
  • the columns 1a consist of several parallel plates 12 which have the overall shape indicated by 1 in FIG. 1.
  • Bearing on each of the two column faces containing the plate edges is a retaining "ice plate 13 or 14, as shown in FIG. 3.
  • These retaining plates are connected by tie rods or clamping screws 15 and thus hold the plate assembly 12 together.
  • the margins of plates 12 are held between flanges 17 of the two retaining plates with interposed key members 18, such as wedges or other means capable of exerting a thrust between the flanges 1'7 and the plates 12.
  • the retaining plates are also formed with faces 19 and 20 which form slideways for the sliding members 21 and 22 of the extensions 11 of the press slide.
  • Each extension 11 is secured to the main casting 8 of the slide by bolts 23.
  • the longitudinal section modulus of the assembly of plates 12 seen in FIG. 3 is naturally high. It is further 3 increased by the tight compression of the plates by the key members 18.
  • the crosswise section modulus of the plates 12 is small. Nevertheless, it is substantially improved by the presence of the retaining plates 13 and 14 which have their greatest section modulus in the direction across the plates 13 and 12.
  • the retaining plates 14.- may be machined out of thick plates or they may be cast. However, their production from rolled material must be considered preferable, because the frames of large presses are subjected to high bending loads which they can better withstand if the material of the plates 12 and the material of the retaining plates 14 is the same.
  • a frame for large forging presses and the like comprising: columns each consisting of a stack of parallel plates, two retaining plates for each stack of parallel plates, the retaining plates extending across opposite edges of the stack plates, clamping screws holding the opposite retaining plates together, these clamping screws being located outside the stack of parallel plates, thick flanges on each retaining plate, engaging round the edges of the stack of arallel plates, and key members interposed between the said fianges and the stack of parallel plates.
  • a large forging or like press comprising: a frame including columns each consisting of a stack of parallel plates, two retaining plates for each stack of parallel plates, the retaining plates extending across opposite edges of the stack plates, clamping screws holding the opposite retainin plates together, these clamping screws being located outside the stack of parallel plates, and slideways on the external surfaces of the retaining plates, and the press also comprising a press slide, lateral extensions of the press slide, and sliding members in the said lateral extensions adapted to slide relatively to the said slideways.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Press Drives And Press Lines (AREA)
US288306A 1962-06-28 1963-06-17 Frames of heavy machine tools particularly forging presses and the like Expired - Lifetime US3243988A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH31677A DE1259708B (de) 1962-06-28 1962-06-28 Rahmenartiger Staender einer grosse Kraefte ausuebenden Presse

Publications (1)

Publication Number Publication Date
US3243988A true US3243988A (en) 1966-04-05

Family

ID=7432190

Family Applications (1)

Application Number Title Priority Date Filing Date
US288306A Expired - Lifetime US3243988A (en) 1962-06-28 1963-06-17 Frames of heavy machine tools particularly forging presses and the like

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US (1) US3243988A (de)
DE (1) DE1259708B (de)
GB (1) GB1005982A (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3397568A (en) * 1965-08-25 1968-08-20 Sack Gmbh Maschf Hydraulic forging press
US3408849A (en) * 1965-11-17 1968-11-05 Hydraulik Gmbh Hydraulic forging press
US3468155A (en) * 1966-11-01 1969-09-23 Davy & United Eng Co Ltd Forging press
US3514992A (en) * 1967-11-29 1970-06-02 Braun Eng Co Cold header
US3678728A (en) * 1969-09-12 1972-07-25 Leonid Alexandrovich Efimov Framework structure for a hydraulic press
US3747393A (en) * 1970-09-29 1973-07-24 Schloemann Ag Drop forging press
US3783774A (en) * 1971-08-06 1974-01-08 Schloemann Ag Pre-stressed press frame
US3802248A (en) * 1971-06-30 1974-04-09 Davy & United Eng Co Ltd Forging press
US3867834A (en) * 1972-04-08 1975-02-25 Schloemann Ag Forging press having adjustable column guides

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125396A (en) * 1964-03-17 bertram
US3604243A (en) * 1968-01-23 1971-09-14 Ernst Muller Frame structure and guide construction of an hydraulic press

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US459816A (en) * 1891-09-22 Hydraulic press
US545758A (en) * 1895-09-03 Frame for forging
GB190415222A (en) * 1904-07-07 1904-08-11 Carl Huber Improved Manufacture of Frames for Hydraulic and other Presses.
GB788891A (en) * 1955-03-18 1958-01-08 Asea Ab Improvements in press stands
US3024676A (en) * 1958-11-28 1962-03-13 Sack Gmbh Maschf Hydraulic presses

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE73785C (de) * A. JUNG in Illkirch-Grafenstaden Wechselstromtransformator mit innerem Luftmantel
AT23105B (de) * 1903-05-04 1906-02-26 Orivit Actien Ges Fuer Kunstge Pressenrahmen-Lamelle.
DE733230C (de) * 1939-02-05 1943-03-22 Schuler L Ag Koerper fuer Pressen, Stanzen o. dgl.
DE898205C (de) * 1940-07-12 1953-11-30 Siemens Ag Vorrichtung zum Zusammenhalten von Lamellenstapeln, insbesondere lamellierten Magnetkernen
US2431950A (en) * 1944-01-26 1947-12-02 Jefferson Electric Co Core construction for electromagnetic apparatus
DE1055958B (de) * 1955-03-18 1959-04-23 Asea Ab Pressenstaender
FR1241482A (fr) * 1958-11-28 1960-09-16 Sack Gmbh Maschf Presse hydraulique, de préférence à forger, à commande inférieure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US459816A (en) * 1891-09-22 Hydraulic press
US545758A (en) * 1895-09-03 Frame for forging
GB190415222A (en) * 1904-07-07 1904-08-11 Carl Huber Improved Manufacture of Frames for Hydraulic and other Presses.
GB788891A (en) * 1955-03-18 1958-01-08 Asea Ab Improvements in press stands
US3024676A (en) * 1958-11-28 1962-03-13 Sack Gmbh Maschf Hydraulic presses

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3397568A (en) * 1965-08-25 1968-08-20 Sack Gmbh Maschf Hydraulic forging press
US3408849A (en) * 1965-11-17 1968-11-05 Hydraulik Gmbh Hydraulic forging press
US3468155A (en) * 1966-11-01 1969-09-23 Davy & United Eng Co Ltd Forging press
US3514992A (en) * 1967-11-29 1970-06-02 Braun Eng Co Cold header
US3678728A (en) * 1969-09-12 1972-07-25 Leonid Alexandrovich Efimov Framework structure for a hydraulic press
US3747393A (en) * 1970-09-29 1973-07-24 Schloemann Ag Drop forging press
US3802248A (en) * 1971-06-30 1974-04-09 Davy & United Eng Co Ltd Forging press
US3783774A (en) * 1971-08-06 1974-01-08 Schloemann Ag Pre-stressed press frame
US3867834A (en) * 1972-04-08 1975-02-25 Schloemann Ag Forging press having adjustable column guides

Also Published As

Publication number Publication date
GB1005982A (en) 1965-09-29
DE1259708B (de) 1968-01-25

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