EP0706844A2 - Dispositif pour emboutir de la tÔle - Google Patents

Dispositif pour emboutir de la tÔle Download PDF

Info

Publication number
EP0706844A2
EP0706844A2 EP95114416A EP95114416A EP0706844A2 EP 0706844 A2 EP0706844 A2 EP 0706844A2 EP 95114416 A EP95114416 A EP 95114416A EP 95114416 A EP95114416 A EP 95114416A EP 0706844 A2 EP0706844 A2 EP 0706844A2
Authority
EP
European Patent Office
Prior art keywords
shuttle
sheet metal
ejector
deep
machine
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.)
Granted
Application number
EP95114416A
Other languages
German (de)
English (en)
Other versions
EP0706844A3 (fr
EP0706844B1 (fr
Inventor
Harald Käsmacher
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.)
Schuler SMG GmbH and Co KG
Original Assignee
SMG SUEDDEUTSCHE MASCHINENBAU GmbH
SMG Sueddeutsche Maschinenbau GmbH
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 SMG SUEDDEUTSCHE MASCHINENBAU GmbH, SMG Sueddeutsche Maschinenbau GmbH filed Critical SMG SUEDDEUTSCHE MASCHINENBAU GmbH
Publication of EP0706844A2 publication Critical patent/EP0706844A2/fr
Publication of EP0706844A3 publication Critical patent/EP0706844A3/fr
Application granted granted Critical
Publication of EP0706844B1 publication Critical patent/EP0706844B1/fr
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
    • B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
    • B21D24/04—Blank holders; Mounting means therefor
    • 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

Definitions

  • the invention relates to a device for deep drawing of sheet metal, consisting of a machine stand with a machine table, a sheet metal holder arranged thereon with a sheet metal holder ring, an upper tool arranged above it with a drawing ring and a drawing die which passes through the machine table and during the drawing process in an upward stroke the sheet metal holder ring between sheet metal holder ring and Drawing ring clamped circuit board formed in the upper tool.
  • transfer presses in which two lower tools are arranged side by side on a horizontally movable table and the deep-drawing punch works from top to bottom.
  • the lower tools are moved by means of the table between the deep-drawing station in the press and an ejector and loading position outside the press.
  • the deep-drawn parts have to be demolded with an ejector acting from the bottom up and removed upwards and finally moved to the side in order to be transferred to a transport container or to a transport device.
  • complex controls and safety devices are required due to the accident prevention regulations.
  • the invention has for its object to simplify a device of the aforementioned construction with an upward working punch with respect to the design effort and the motion sequences.
  • the upper tool is designed as a shuttle and can be moved between the forming position within the machine stand, in which it is aligned with the drawing die, and an ejector position outside the machine stand, in which the drawn part is ejected downward, and in that the loading of the blanks takes place either in the direction of movement of the shuttle from the side of the machine stand opposite the ejector position or perpendicular to this direction of movement.
  • the sheet metal holder and the upper tool remain in their position during deep drawing and only the drawing die is moved, as can be seen on the small stroke of the sheet metal holder. Due to the arrangement of the upper tool on a shuttle, the ejection of the deep-drawn part and thus the associated motion sequence is moved outside the machine stand and the deep-drawn part can be dropped directly into a corresponding collecting container or onto a conveyor, so that these movement sequences within the machine are not required. Furthermore, the working cycle can be accelerated by loading a new blank for the next deep-drawing process during ejection from the opposite side of the machine stand or perpendicular to the direction of movement of the shuttle. By minimizing the movement sequences within the machine, the previous safety devices and the controls required for this can be largely simplified, and in some cases even eliminated.
  • the ejector position can be located on the side or behind the machine, depending on the spatial conditions or the loading options, as well as taking the tool change into account.
  • a particularly advantageous embodiment of the invention is characterized in that the shuttle has two upper tools, one of which is always in the forming position within the machine frame, the other in one of two ejector positions on both sides of the machine frame, and both upper tools are alternately available in the forming position , and that the loading of the boards takes place transversely to the direction of movement of the shuttle.
  • the performance per Almost double the time unit of a deep-drawing device by allowing one deep-drawing and one ejection process to take place simultaneously.
  • a further acceleration can be achieved in that the device is loaded during the movement of the upper tools.
  • the forces can be easily absorbed inside the machine stand, while the shuttle guide outside the machine stand only has to absorb small forces, which are easily absorbed via a support on the machine stand can.
  • an ejector cylinder acting from top to bottom is provided at the ejector position, which is attached to the shuttle guide and with its ejector engages through the guide and the upper tool.
  • the deep-drawn part ejected by the ejector can be dropped directly into a collecting container underneath, on a pallet or a conveyor.
  • a further preferred embodiment is characterized in that the device for forming a tandem arrangement is assigned a second device of the same structure at a distance and the supply of the boards from the space between the two devices and the ejection of the deep-drawn parts takes place on the sides of the device facing away from one another .
  • the performance of the device can be doubled with the smallest space requirement.
  • Different deep-drawn parts can optionally be produced simultaneously on both devices.
  • a single hydraulic unit can be provided for the drive.
  • the device has a machine stand 1, for example in the form of a welded construction, with an upper part 2 and a lower part 3.
  • a double-acting hydraulic cylinder not shown, is arranged, the piston rod 4 of which carries the punch 5.
  • the piston rod 4 is guided in a machine table 6, which is an integral part of the machine stand 1.
  • the guide 11 of a shuttle 10 is arranged, which extends outside the machine, the projecting part being supported on the upper part 2 of the machine stand 1 by a support 12.
  • the upper tool 13 is guided on the shuttle so that it can be moved horizontally with the drawing ring.
  • an ejector cylinder 14 is arranged on the projecting part of the guide 11, the ejector rod 15 of which can be inserted into the tool 13 through the guide 11.
  • the device In the position shown in Figure 1, the device is loaded according to the arrow indicated from the right with the board which is placed on the sheet metal holder ring 8.
  • the upper tool 13 then moves from the position shown in FIG. 1 to the position according to FIG. 2.
  • the circuit board is located between the upper tool or drawing ring and the sheet metal holder ring 8.
  • the pressure medium cylinders 9 are then acted upon in the machine table 6, so that the sheet metal holder 7 moves into the in Figure 3 shown position is raised and the board is clamped between the sheet metal holder ring and drawing ring.
  • the drawing punch then moves upward and forms the board into the upper tool 13. After the deep-drawing stroke has been completed, the drawing die 5 is moved downward until it comes free from the upper tool.
  • a receptacle for example a container, a pallet or also a conveyor, which accommodates the deep-drawn part, can be arranged below the ejector position.
  • the device according to FIGS. 1 to 3 can be designed as a tandem construction.
  • the guide 11 also projects beyond the machine stand 1 on the other side and an ejector cylinder 14 is also arranged there.
  • Two upper tools 13, each with a drawing ring, are arranged next to one another on the shuttle 10, and the shuttle passes over the forming station and both ejector positions, so that a deep-drawing stroke and an ejector stroke can be carried out simultaneously.
  • two devices 20, 21 of the structure described above are arranged side by side, which work in alternation.
  • the guideways 11 of the shuttle 10 integrated in the machine stand 1 run on opposite sides. From the space between the devices 20, 21, the blanks are alternately fed according to the arrows 22, 23 to the device whose upper tool is currently in the ejector position, while the other device carries out the deep-drawing stroke at the same time.
  • the upper tools with the molded deep-drawn parts are followed by the shuttle along the guideways 11 opposite sides in the ejector position.
  • the ejected deep-drawn parts are removed in accordance with the directional arrows 24, 25.
  • a single hydraulic unit can be provided as the drive, which is located, for example, in the foundation pit between the two devices and supplies the hydraulic cylinders that supply the deep-drawing die of both devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Punching Or Piercing (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP95114416A 1994-10-11 1995-09-14 Dispositif pour emboutir de la tÔle Expired - Lifetime EP0706844B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4436273 1994-10-11
DE4436273A DE4436273A1 (de) 1994-10-11 1994-10-11 Tiefziehen von Blech

Publications (3)

Publication Number Publication Date
EP0706844A2 true EP0706844A2 (fr) 1996-04-17
EP0706844A3 EP0706844A3 (fr) 1996-08-07
EP0706844B1 EP0706844B1 (fr) 1999-08-11

Family

ID=6530465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95114416A Expired - Lifetime EP0706844B1 (fr) 1994-10-11 1995-09-14 Dispositif pour emboutir de la tÔle

Country Status (7)

Country Link
EP (1) EP0706844B1 (fr)
JP (1) JPH08197155A (fr)
CN (1) CN1062790C (fr)
AT (1) ATE183120T1 (fr)
DE (2) DE4436273A1 (fr)
ES (1) ES2136779T3 (fr)
TW (1) TW283101B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19904888C1 (de) * 1999-02-06 2000-08-03 Thyssenkrupp Ind Ag Vorrichtung zum Umformen von Blechen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19607257C2 (de) * 1996-02-27 1999-11-04 Hydrap Pressen Maschinenbau Hydraulische Blechformpresse

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE407175C (de) * 1924-12-18 Richard Creuzburg Friktionspresse
US2176543A (en) * 1936-11-19 1939-10-17 Murray Corp Shuttle feed for presses
DE852487C (de) * 1944-02-13 1952-10-16 Schloemann Ag Vorrichtung zur Erleichterung des Ausbauens von abgegrateten Werkstuecken
US2713901A (en) * 1950-09-19 1955-07-26 Wales Strippit Corp Apparatus for clearing punched blanks from a punching assembly
DE2913439A1 (de) * 1979-04-04 1980-10-16 Schoen & Cie Gmbh Stanzmaschine
DE2944045A1 (de) * 1979-10-31 1981-05-14 Buhrke Industries, Inc., Arlington Heights, Ill. Schnellwechselvorrichtung fuer schwere formsaetze
DE4028425A1 (de) * 1990-09-07 1992-03-12 Alcoa Gmbh Verpackwerke Verfahren und vorrichtung zum entfernen von verschlusskapseln und abscherringen aus einem tiefziehwerkzeug

Non-Patent Citations (1)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19904888C1 (de) * 1999-02-06 2000-08-03 Thyssenkrupp Ind Ag Vorrichtung zum Umformen von Blechen

Also Published As

Publication number Publication date
EP0706844A3 (fr) 1996-08-07
JPH08197155A (ja) 1996-08-06
ES2136779T3 (es) 1999-12-01
DE4436273A1 (de) 1996-04-18
ATE183120T1 (de) 1999-08-15
CN1128686A (zh) 1996-08-14
TW283101B (fr) 1996-08-11
DE59506575D1 (de) 1999-09-16
EP0706844B1 (fr) 1999-08-11
CN1062790C (zh) 2001-03-07

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