EP0351741B1 - Presse zur Herstellung von Blechformteilen in mehreren Stufen - Google Patents

Presse zur Herstellung von Blechformteilen in mehreren Stufen Download PDF

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Publication number
EP0351741B1
EP0351741B1 EP19890112999 EP89112999A EP0351741B1 EP 0351741 B1 EP0351741 B1 EP 0351741B1 EP 19890112999 EP19890112999 EP 19890112999 EP 89112999 A EP89112999 A EP 89112999A EP 0351741 B1 EP0351741 B1 EP 0351741B1
Authority
EP
European Patent Office
Prior art keywords
press
frame
die
tools
bolster plate
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
EP19890112999
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0351741A1 (de
Inventor
Günther Haller
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.)
Allgaier Werke GmbH and Co KG
Original Assignee
Allgaier Werke 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 Allgaier Werke GmbH and Co KG filed Critical Allgaier Werke GmbH and Co KG
Publication of EP0351741A1 publication Critical patent/EP0351741A1/de
Application granted granted Critical
Publication of EP0351741B1 publication Critical patent/EP0351741B1/de
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
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/14—Particular arrangements for handling and holding in place complete dies
    • 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
    • B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
    • B21D24/005—Multi-stage presses

Definitions

  • the invention relates to a press for the production of sheet metal parts in several stages, with a press frame, a ram movable relative to the press frame, on the underside of which the tool upper parts of a number of tools of a tool set corresponding to the number of stages can be attached, a clamping plate arranged below the ram , on the top of which the tool lower parts of the tool set can be fastened, and at least one number of pressure-medium-operated, individually controllable die cushions corresponding to the number of tools, which are arranged under the clamping plate in the step increments between the tools, and in each case above in the clamping plate axially displaceably mounted bolts can be connected to a sheet metal holder of the respective tool.
  • a press of this type is known for example from GB-A-1250117.
  • the object of the invention is to design the generic press in such a way that different tool sets with different steps can be driven on it.
  • the object of the invention is achieved on the basis of a press according to the preamble of claim 1 in that the die cushions are arranged in a frame having the clamping plate as an integral part, which forms a detachably connectable unit with the press frame, which consists of a number of interchangeable Units are selected whose die cushions have different average distances for different steps.
  • the die cushions are therefore interchangeable, so that one and the same press can be used for different tool sets with different steps.
  • the die cushions can be changed easily, and the time required for converting the press can also be kept short by the fact that the new tool set is already outside the press on the platen of the available unit Die cushion and frame can be attached.
  • a number of sheet metal forming operations can be carried out for which previously several presses or even a press line were required. Since no further presses have to be provided for performing additional sheet metal forming operations, the investment costs and the space required for the equipment required for sheet metal forming are lower than before.
  • the invention also has the advantage that existing presses with one or more permanently installed die cushions can be converted into presses according to the invention with little effort. From a simple press with just one die cushion, e.g. a transfer press for the production of sheet metal parts can be made in several stages in a simple manner, such a transfer press also having the advantage that different tool sets can be used with different steps.
  • a simple press with just one die cushion e.g. a transfer press for the production of sheet metal parts can be made in several stages in a simple manner, such a transfer press also having the advantage that different tool sets can be used with different steps.
  • the units made of die cushions and frames on the press table of the press are particularly advantageous for existing presses.
  • the arrangement of the units on the press table also has the advantage that a high rigidity of the press is achieved regardless of the design of the die cushion and frame unit.
  • the single-acting transfer press shown in Fig. 1 has an O-shaped press frame 1 and a single plunger 2 movable by an upper drive, on the underside of which the tool upper parts 3 are detachably fastened by several tools.
  • the corresponding lower parts 4 of the tools are releasably attached to the top of a platen 5, which is part of an exchangeable unit 6.
  • the unit 6 consists of a frame, of which the platen 5 is an integral part.
  • the frame has a base plate 7 on which the platen 5 is supported by ribs 8 made in one piece with the platen 5.
  • the base plate 7 is firmly connected to the free ends of the ribs 8 and thus to the clamping plate 5.
  • Each die cushion 10 has a pressure-medium-operated piston-cylinder unit 11 and a die cushion plate 12 fastened to the piston end, which is displaceably guided on the ribs 8.
  • a plurality of bolts 13 are supported on each die cushion plate 12 and are axially displaceably mounted in the clamping plate. The bolts 13 connect the die cushions 10 to the sheet metal holders of the tools, so that the die cushions 10 can actuate the sheet metal holders during operation of the press.
  • the average distance mA between two adjacent die cushions 10 is shown in FIG. 2.
  • the average distance between the die cushions 10 corresponds to the step between two adjacent tools, of which the lower parts on the platen 5 of the respective unit 6, 6 'are arranged.
  • the units 6,6 ' have different average distances between the die cushions, so that tool sets with different steps can be used.
  • the variability of the step steps between the tools is illustrated in Fig. 1 in that a unit 6 is just installed in the press, which carries the lower parts 4 of a total of four tools of a tool set and has a corresponding number of die cushions, and that in addition to the Press standing unit 6 'carries the lower parts 4' of a total of eight tools from another tool set, the unit 6 'with the same external dimensions as the unit 6 including eight die cushions.
  • the average distance between the die cushions naturally becomes smaller.
  • the tool upper parts 3 are releasably attached to the plunger 2 and are exchangeable, their step length being variable and corresponding to the size and number of the selected tools.
  • Fig. 1a two pairs of interchangeable gripper rails 14,14 'for the gradual transport of the sheet metal parts to be manufactured are shown in perspective. While the pair of gripper rails 14 is installed in the press when the unit 6 is used with four tools as shown, the pair of gripper rails 14 is intended for the press when the unit 6 'with eight tools is used as shown.
  • the transfer press according to the invention thus enables a variable step between the tools, so that tool sets of different sizes can be installed in the press with more or fewer operating options.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Press Drives And Press Lines (AREA)
EP19890112999 1988-07-22 1989-07-14 Presse zur Herstellung von Blechformteilen in mehreren Stufen Expired - Lifetime EP0351741B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3824997 1988-07-22
DE19883824997 DE3824997C1 (US07026469-20060411-C00007.png) 1988-07-22 1988-07-22

Publications (2)

Publication Number Publication Date
EP0351741A1 EP0351741A1 (de) 1990-01-24
EP0351741B1 true EP0351741B1 (de) 1993-03-17

Family

ID=6359350

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19890112999 Expired - Lifetime EP0351741B1 (de) 1988-07-22 1989-07-14 Presse zur Herstellung von Blechformteilen in mehreren Stufen
EP19890907727 Pending EP0425532A1 (de) 1988-07-22 1989-07-14 Presse zur herstellung von blechformteilen in mehreren stufen

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19890907727 Pending EP0425532A1 (de) 1988-07-22 1989-07-14 Presse zur herstellung von blechformteilen in mehreren stufen

Country Status (3)

Country Link
EP (2) EP0351741B1 (US07026469-20060411-C00007.png)
DE (1) DE3824997C1 (US07026469-20060411-C00007.png)
WO (1) WO1990000943A1 (US07026469-20060411-C00007.png)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102489606B (zh) * 2011-12-05 2013-11-27 重庆国际复合材料有限公司 一种漏板底板预压成型模具及方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1028520B (de) * 1956-03-09 1958-04-24 Weingarten Ag Maschf Stufenpresse
DE1246652B (de) * 1962-02-10 1967-08-10 Mueller Fritz Stufenpresse
GB1250117A (US07026469-20060411-C00007.png) * 1969-03-07 1971-10-20
DE2921906C3 (de) * 1979-05-30 1982-02-25 Maschinenfabrik Weingarten Ag, 7987 Weingarten Arbeitsverfahren zur Überprüfung und Einstellung der Einzelwerkzeuge einer Mehrstufenpresse

Also Published As

Publication number Publication date
EP0425532A1 (de) 1991-05-08
WO1990000943A1 (de) 1990-02-08
EP0351741A1 (de) 1990-01-24
DE3824997C1 (US07026469-20060411-C00007.png) 1989-09-28

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