EP0741000A2 - Dispositif de guidage parallèle pour le poinçon d'une presse hydraulique - Google Patents

Dispositif de guidage parallèle pour le poinçon d'une presse hydraulique Download PDF

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Publication number
EP0741000A2
EP0741000A2 EP95113202A EP95113202A EP0741000A2 EP 0741000 A2 EP0741000 A2 EP 0741000A2 EP 95113202 A EP95113202 A EP 95113202A EP 95113202 A EP95113202 A EP 95113202A EP 0741000 A2 EP0741000 A2 EP 0741000A2
Authority
EP
European Patent Office
Prior art keywords
tappet
gears
parallel
ram
gear
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Withdrawn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
EP95113202A
Other languages
German (de)
English (en)
Other versions
EP0741000A3 (fr
Inventor
Hans Schoen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0741000A2 publication Critical patent/EP0741000A2/fr
Publication of EP0741000A3 publication Critical patent/EP0741000A3/fr
Withdrawn legal-status Critical Current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
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/007—Means for maintaining the press table, the press platen or the press ram against tilting or deflection

Definitions

  • the invention relates to a device for parallel guidance of the ram of a hydraulic press, for. B. a punch press, according to the preamble of claim 1.
  • the lifting movement of the press ram is effected either with a single pressure medium cylinder or with a plurality of pressure medium cylinders working in parallel.
  • the parallel guidance of the press ram plays an important role during the work movement.
  • the causes of deviations from the parallel guidance can be asymmetrical loads and / or deviations in the mode of operation of the pressure medium cylinders acting in parallel.
  • the invention seeks to remedy this.
  • the object of the invention is therefore to provide a device for parallel guidance of the press ram of a hydraulic press, which effects a reliable parallel movement of the press ram with simple, reliable mechanical means and which also works without delay.
  • This new device is essentially based on a gear mechanism consisting of gears and Racks that force the press ram to move parallel to the press table and work without delay. Tilting of the press ram as a result of asymmetrical workpiece loading and / or non-uniformly operating pressure medium cylinders cannot occur here.
  • a second group of gearwheels and associated shafts on the press ram in a second, parallel plane.
  • two further parallel shafts can be added to the press ram in a further plane, each of which carries a gear wheel at its ends, which each engage in a toothed rack.
  • intermeshing gearwheels For spatial reasons, it may be appropriate to design the intermeshing gearwheels of different sizes. It is advantageous to choose a larger diameter for the pair of intermeshing internal gears than for the external gears.
  • the bearings of the shafts are designed so that they ensure a play-free pivot bearing.
  • the device according to the invention offers, for example for a fineblanking press, the possibility of pressing the ram instead of a single one by, for. B. to move four smaller hydraulic cylinders that can be easily arranged in the press top.
  • This has the further advantage that no foundation with a pit is required and the press does not have to be dismantled for transport.
  • the hydraulic press shown consists essentially of a lower yoke 1, two side parts 2, 3 and an upper yoke 4.
  • Lower yoke 1 and upper yoke 4 are clamped together via the side parts 2, 3 by tie rods, not shown.
  • the press ram 5 is guided between the side parts 2, 3 with the help of two pressure medium cylinders 6, 7 arranged in the upper yoke 4 and working in parallel and can be stored.
  • the piston rods 8, 9 of the pressure medium cylinders 6, 7 engage the top cover 10 of the box-like tappet 5 and cause its working and return stroke.
  • the processing tool is exchangeably attached to the underside of the plunger 5.
  • the counter tool is arranged on the table support 11, which rests on the lower yoke 1.
  • the box-like tappet 5 contains parallel side walls 12, 13. In these side walls, a total of ten shafts can be freely rotated in recesses in three superimposed levels in play-free pivot bearings, but is axially immovable.
  • Four waves are arranged in a lower and in a middle level and two waves in an upper level. All shafts protrude laterally opposite the plunger 5 and each have a spur gear on their projecting ends in a rotationally fixed connection with the respective shaft.
  • the waves of the superimposed levels are designated 14, 15 and 16.
  • the gears are like this in the two lower levels dimensioned that all four gears of the shafts 14 are in engagement with each other on each tappet side.
  • the toothed wheels of each shaft located on opposite sides of the tappet 5 are of the same size.
  • the two inner gear wheels 17 have a larger diameter than the outer gear wheels 18.
  • gear wheels 19, 20 In the plane above, in which the shafts 15 lie, the gear wheels 19, 20 have the same size as the gear wheels 17, 18 in the lower plane. In the upper level, in which the shafts 16 run, only outer gearwheels 21 are provided which correspond in size to the gearwheels 18, 20.
  • Rectangular windows 22, 23 are embedded in the side parts 2, 3 of the press frame, which form free spaces for the gears on the press ram 5 during the entire stroke.
  • a rack 24 and 25 is arranged parallel to the movement path of the plunger 5 on the side cheeks such that the corresponding external gears 18, 20 and 21 are in engagement with the adjacent rack 24 and 25, respectively.
  • This gear system causes a positively guided parallel movement of the plunger 5 during the stroke movement of the plunger 5. Because the four shafts 14 and 15 of one plane are connected to one another in the lower two planes, the external gears 18 and 20 can be inserted into the racks Intervene 24 or 25, only perform synchronous movements. Thanks to this forced parallel guidance, tilting of the press ram 5 is reliably avoided.
  • sliding surfaces 26, 27 are formed on the side parts 2, 3 along the stroke path, on which the press ram 5 is slidably guided with corresponding sliding surfaces 28, 29 during the downward and upward movement.
  • gears and shafts are arranged in three superimposed horizontal planes on the press ram. It should be noted that even with a gear arrangement in a single plane corresponding to the lower or middle level of the embodiment, the press ram 5 is forcibly guided in parallel. Such an arrangement can be quite suitable for hydraulic presses of lower output. For hydraulic presses for particularly high working pressures or high cutting accuracies, however, it is advantageous to provide gear arrangements in two or three levels one above the other in order to limit the specific loads on the gear parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
EP95113202A 1995-05-04 1995-08-23 Dispositif de guidage parallèle pour le poinçon d'une presse hydraulique Withdrawn EP0741000A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19516359 1995-05-04
DE19516359A DE19516359A1 (de) 1995-05-04 1995-05-04 Einrichtung zur Parallelführung des Stößels einer hydraulischen Presse

Publications (2)

Publication Number Publication Date
EP0741000A2 true EP0741000A2 (fr) 1996-11-06
EP0741000A3 EP0741000A3 (fr) 1997-02-26

Family

ID=7761060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95113202A Withdrawn EP0741000A3 (fr) 1995-05-04 1995-08-23 Dispositif de guidage parallèle pour le poinçon d'une presse hydraulique

Country Status (4)

Country Link
US (1) US5601017A (fr)
EP (1) EP0741000A3 (fr)
CZ (1) CZ233395A3 (fr)
DE (1) DE19516359A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19816073A1 (de) * 1998-04-09 1999-10-21 Wild Maschinen Gmbh Mehrkammerpresse

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE507065C2 (sv) * 1996-12-10 1998-03-23 Lars Persson I Skaane Ab Tätning av hydraulpress
US7178454B2 (en) * 2004-03-30 2007-02-20 Cnh America Llc Compactor apparatus including single cylinders and guide members on the sides of an on-board module builder of a cotton harvesting machine
DE102013110539B3 (de) * 2013-09-24 2014-11-20 Fette Compacting Gmbh Verfahren zur Herstellung eines Presslings aus pulverförmigem Material
CN103552138A (zh) * 2013-11-21 2014-02-05 江苏快乐木业集团有限公司 一种预压机
CN111438324B (zh) * 2020-04-08 2021-08-31 盐城金刚星精密锻造有限公司 一种设有三锻压位的锻压设备

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1469689A (en) * 1919-11-14 1923-10-02 Prius Joseph Segimon Hydraulic press
US1936880A (en) * 1932-06-10 1933-11-28 Fredrich J Rode Metal working press
US2217172A (en) * 1935-06-29 1940-10-08 Birdsboro Steel Foundry & Mach Drawing press and process
US2405537A (en) * 1943-03-19 1946-08-06 Verson Allsteel Press Co Punch press
US2670676A (en) * 1950-09-20 1954-03-02 Lee B Green Metal working press with slide aligning mechanism
US3118407A (en) * 1960-04-18 1964-01-21 Fed Engineering Company Die spotting press
SE432906B (sv) * 1982-09-17 1984-04-30 Blidsberg Verktygsind Maskin med en fram och ater rorlig arbetande del
SE452127B (sv) * 1985-06-05 1987-11-16 Peter Andersson Anordning for parallellstyrning av en presslid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19816073A1 (de) * 1998-04-09 1999-10-21 Wild Maschinen Gmbh Mehrkammerpresse
DE19816073B4 (de) * 1998-04-09 2006-02-09 Robert Bürkle GmbH Mehrkammerpresse

Also Published As

Publication number Publication date
CZ233395A3 (en) 1996-10-16
DE19516359A1 (de) 1996-11-07
US5601017A (en) 1997-02-11
EP0741000A3 (fr) 1997-02-26

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