EP1270192A1 - Bâti en forme de C pour un dispositif d'usinage, notamment de formage de pièces - Google Patents

Bâti en forme de C pour un dispositif d'usinage, notamment de formage de pièces Download PDF

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Publication number
EP1270192A1
EP1270192A1 EP01115570A EP01115570A EP1270192A1 EP 1270192 A1 EP1270192 A1 EP 1270192A1 EP 01115570 A EP01115570 A EP 01115570A EP 01115570 A EP01115570 A EP 01115570A EP 1270192 A1 EP1270192 A1 EP 1270192A1
Authority
EP
European Patent Office
Prior art keywords
shaped frame
hydraulic cylinder
upper crosshead
frame
crosshead
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.)
Withdrawn
Application number
EP01115570A
Other languages
German (de)
English (en)
Inventor
Dieter Kapp
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.)
Theodor Graebener GmbH and Co KG
Original Assignee
Theodor Graebener 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 Theodor Graebener GmbH and Co KG filed Critical Theodor Graebener GmbH and Co KG
Priority to EP01115570A priority Critical patent/EP1270192A1/fr
Publication of EP1270192A1 publication Critical patent/EP1270192A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/039—Means for controlling the clamping or opening of the moulds
    • 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
    • B30B15/044—Means preventing deflection of the frame, especially for C-frames

Definitions

  • the invention relates to a device for Machining or forming of workpieces, consisting of a C-shaped Frame with a table on the front open side and a vertical traversing device with a tool is provided.
  • Such devices are for example as presses or the like. known.
  • Other machines are also in the so-called C design known. All of these devices and machines have the disadvantage that their C-shaped frames at Processing or forming workpieces in the area bends open front sides. This bend up is generally very undesirable as this leads to stress as well Bends on guides and the like and thus inaccuracies on Workpiece leads.
  • the invention is therefore based on the object To create device of the type specified, in which a Bending of the C-shaped frame is largely avoided.
  • the web of the C-shaped frame as Hydraulic cylinder and the pivotable bearing at least the upper crosshead of the device can the force that for example, for hydroforming on the front open one Side of the C-shaped frame acts, can be counteracted, so that there is no bending of the frame.
  • the lower one Crosshead and frame enclosing the upper crosshead supports this.
  • An embodiment of the device according to the invention is subsequently based on one in the drawing, for example in Side view (partly cut) shown press described.
  • the device 1 for processing shown in the figures or forming workpieces consists essentially of a C-shaped frame 2, on its front open side 3 a Table 4 and a vertical displacement device 5 are provided is.
  • the C-shaped frame 2 consists of a lower crosshead 6 and an upper crosshead 7, the same in one enclosing frame 8 are pivotally mounted, wherein at least those in contact with the upper crosshead 7 Surface of the frame 8 is curved.
  • the web 9 of the C-shaped Frame 2 is formed by hydraulic cylinders 10 which are preferably designed as short-stroke cylinders and after Closing a locking device 11 a tool carrier Hold the moving device 5 in its closed position, i.e. which counteract the force in the forming process. To do this swings the upper crosshead 7 about a pivot point 13.
  • the ratio the center distance 14 of the moving device 5 to the pivot axis 15 of the upper crosshead 7 and the center distance 16 of the Hydraulic cylinder 10 to the pivot axis 15 of the upper crosshead 7 is preferably 1: 2, whereby the hydraulic cylinder 10 at their design can be chosen much smaller.
  • the moving device 5 is made of at least one other Hydraulic cylinder 17 formed, at the lower end of the Tool carrier 12 is attached. This hydraulic cylinder 17th is only for the downward and upward movement in the rapid traverse of the Tool carrier 12 provided.
  • the device 1 also has the tool carrier 12 in its lowest position, d. H. in the position in which Tool 18 for the forming process by means of the hydraulic cylinder 17 is closed, locking device 11 on.
  • This locking device 11 is in this Embodiment essentially from a horizontal movable hydraulic cylinder 20, at the front end retractable between tool carrier 12 and upper crosshead 7 Intermediate piece 21 is provided.
  • Each hydraulic cylinder 10 the number corresponding to special requirements can be chosen with different pressures are applied because the Hydraulic cylinders 10 can be controlled individually. This can vary depending Tool may be necessary if in certain areas of the same different locking forces are necessary.
  • lower and upper crossheads 6, 7 and Frame 8 is variable depending on the size of the workpiece, the Table 4 in one piece over all lower crossheads or their entire width runs.
EP01115570A 2001-06-28 2001-06-28 Bâti en forme de C pour un dispositif d'usinage, notamment de formage de pièces Withdrawn EP1270192A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01115570A EP1270192A1 (fr) 2001-06-28 2001-06-28 Bâti en forme de C pour un dispositif d'usinage, notamment de formage de pièces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01115570A EP1270192A1 (fr) 2001-06-28 2001-06-28 Bâti en forme de C pour un dispositif d'usinage, notamment de formage de pièces

Publications (1)

Publication Number Publication Date
EP1270192A1 true EP1270192A1 (fr) 2003-01-02

Family

ID=8177852

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01115570A Withdrawn EP1270192A1 (fr) 2001-06-28 2001-06-28 Bâti en forme de C pour un dispositif d'usinage, notamment de formage de pièces

Country Status (1)

Country Link
EP (1) EP1270192A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247783A (en) * 1964-05-21 1966-04-26 Erie Foundry Company Hydraulic press
FR1595056A (fr) * 1968-12-12 1970-06-08
US4018150A (en) * 1975-06-11 1977-04-19 Seiji Shiokawa Open-sided press
JPH08281499A (ja) * 1995-04-10 1996-10-29 Nisshinbo Ind Inc 液圧プレス装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247783A (en) * 1964-05-21 1966-04-26 Erie Foundry Company Hydraulic press
FR1595056A (fr) * 1968-12-12 1970-06-08
US4018150A (en) * 1975-06-11 1977-04-19 Seiji Shiokawa Open-sided press
JPH08281499A (ja) * 1995-04-10 1996-10-29 Nisshinbo Ind Inc 液圧プレス装置

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