EP0314975A1 - Presse avec organes de blocage pour coulisseau - Google Patents

Presse avec organes de blocage pour coulisseau Download PDF

Info

Publication number
EP0314975A1
EP0314975A1 EP88117287A EP88117287A EP0314975A1 EP 0314975 A1 EP0314975 A1 EP 0314975A1 EP 88117287 A EP88117287 A EP 88117287A EP 88117287 A EP88117287 A EP 88117287A EP 0314975 A1 EP0314975 A1 EP 0314975A1
Authority
EP
European Patent Office
Prior art keywords
locking
locking rod
rod
press
bolt
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
EP88117287A
Other languages
German (de)
English (en)
Other versions
EP0314975B1 (fr
Inventor
Hermann Braun
Kurt Strommer
Eckhard Dr.-Ing. Brangs
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.)
L Schuler GmbH
Original Assignee
L Schuler 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 L Schuler GmbH filed Critical L Schuler GmbH
Publication of EP0314975A1 publication Critical patent/EP0314975A1/fr
Application granted granted Critical
Publication of EP0314975B1 publication Critical patent/EP0314975B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
    • B30B15/287—Arrangements for preventing distortion of, or damage to, presses or parts thereof preventing unintended ram movement, e.g. using blocking devices

Definitions

  • the invention relates to a press of the type specified in the preamble of claim 1.
  • DE-OS 20 45 894 describes a hydraulic drawing press with locking devices for several plungers.
  • the locking devices consist of racks and locking claws encircling their toothing.
  • the locking claws which are slidably mounted in the plunger, can be moved using hydraulic actuating means. The disengagement from the connection with the racks takes place against a mechanical return spring. A lowering movement of the plunger is required to ensure that it engages properly. The locked position is not secured.
  • the downward and upward movements of the plunger and the movement of the locking bolts when the locking position is found are not in one direction of movement. It is also essential to the invention that the movements of the locking bolts towards the locking rod, the locking in this position, the movement away from the locking rod and the locking of the locking bolts in the position releasing the locking rod are achieved by a single curve piece acting on all locking bolts of a locking device will. Due to the freely movable mounting of the locking bolts in the directions of movement transverse to the lowering and lifting movement of the plunger, the plunger can be securely secured in spite of unavoidable movement games.
  • Fig. 2 only one half of a locking device is shown, since the housing 13, the housing cover 14, a worm wheel 37, a locking guide 17 and a cam ring 29 in this embodiment, like the locking rod 9, are rotationally symmetrical components. With this construction, a plurality of locking bolts 23 can be guided against the locking rod 9 at the same time. However, it is also envisaged for an embodiment using a helical rack and linear movement of a double curve corresponding to the cam ring 29.
  • the worm wheel 37 is rotatably inserted into the housing 13, which is kept closed by the housing cover 14.
  • the worm wheel 37 can be driven by the servo motor 12 to the left and to the right by means of a worm.
  • the cam ring 29 is carried here via a driver 38, which serves as a compensating clutch and in the rubber-elastic middle part cylindrical pins 39 are inserted, which engage in a groove 41 in the worm wheel 37 and in the cam ring 29.
  • the cam ring 29 has, as is also shown in FIGS. 3a to 3e, a first control curve 31, a second control curve 32 and an annular groove 35 with the end faces 36 as contact surfaces.
  • a bolt guide 17 is rotatably mounted in the housing cover 14. Between the housing cover 14 and the bolt guide 17 there is a catch-like anti-rotation lock with a catch 19 which engages in a recess 18 in the bolt guide 17 under the pressure of a spring 21, which is supported in a closure piece 22.
  • the bolt guide 17 serves for the radial guidance of a number, for example three locking bolts 23.
  • the locking bolts 23 are movably mounted in the bolt guide 17 in the direction of the locking rod 9 and away from it.
  • Bolt guide 17 and cam ring 29 also allow the locking bolts 23 to move sideways in accordance with the directions of movement indicated by the two double arrows 30 in FIG. 3b, in order to compensate for inaccuracies in the delivery of the locking rod 9 as a result of a more or less large play in the ram guide.
  • each locking bolt 23 a longitudinal bore 26 is made in the direction of the movement of the locking bolt 23 against the locking rod 9.
  • a cam follower 28 is inserted, which is constantly pressed under the pressure of a spring 27 against the first cam 31.
  • the locking bolt 23 is preloaded in the direction of the locking rod 9.
  • a pin 33 is further inserted, which cooperates with the second cam 32 on the cam ring 29, and a cylinder pin 34, which engages in the annular groove 35 and comes to rest on one of the end faces 36 when the cam ring 29 rotates the or the locking bolt 23.
  • Arrow 16 indicates the bore in the housing cover 14 and the cylindrical housing 13.
  • the toothings on locking rod 9 and locking bolt 23 are indicated by 11 and 24, respectively.
  • the toothing itself can be a movement thread, for example a trapezoidal or saw thread.
  • the locking bolts 23 can be segments which have been cut out of a nut which has the same thread as the locking rod 9.
  • a locking rod 9 is indicated with a movement thread 11.
  • Three locking bolts 23 are also indicated, which are placed against the outer jacket of the locking rod 9. This representation corresponds to the phase in which the locking bolts 23 are to be rotated in a horizontal plane around the locking rod 9 in order to be able to engage in the groove or the threads on the locking rod 9.
  • FIGS. 3a to 3e The locking process for securing the raised position of the plunger 3 in the individual phases is shown in FIGS. 3a to 3e.
  • FIG. 3a shows the unlocked state.
  • the locking bolt 23 is prevented from moving by the spring 27 against the locking rod 9 by the cylindrical pin 33 on the second control cam 32. If the cam ring 29 is now moved in the direction of the arrow 44, the cylinder pin 33 is released from the second control cam 32 and the locking bolt 23 is guided against the locking rod 9 under the pressure of the spring 27 when the cam follower piece 28 bears against the first control cam 31.
  • locking bars 23 generally initially rest against the locking bar 9, as is also shown in FIG. 5a.
  • the catch 19 prevents the locking bar guide 17 and thus the locking bar 23 from rotating about the locking rod 9.
  • the length of the annular groove 35 (FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)
  • Press Drives And Press Lines (AREA)
  • Punching Or Piercing (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Control Of Presses (AREA)
EP88117287A 1987-11-03 1988-10-18 Presse avec organes de blocage pour coulisseau Expired - Lifetime EP0314975B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873737197 DE3737197A1 (de) 1987-11-03 1987-11-03 Presse mit verriegelungseinrichtungen fuer den stoessel
DE3737197 1987-11-03

Publications (2)

Publication Number Publication Date
EP0314975A1 true EP0314975A1 (fr) 1989-05-10
EP0314975B1 EP0314975B1 (fr) 1992-05-20

Family

ID=6339637

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88117287A Expired - Lifetime EP0314975B1 (fr) 1987-11-03 1988-10-18 Presse avec organes de blocage pour coulisseau

Country Status (3)

Country Link
EP (1) EP0314975B1 (fr)
BR (1) BR8805658A (fr)
DE (2) DE3737197A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0839640A3 (fr) * 1996-10-30 1998-12-30 Clearing Niagara, Inc. Blocage du coulisseau pour presse à estamper
WO1999064226A1 (fr) * 1998-06-12 1999-12-16 Renzo Cipriani Frein d'urgence pour presses mecaniques
EP1034917A3 (fr) * 1999-03-12 2001-11-14 Müller Weingarten AG Presse avec dispositif de verrouillage pour coulisseau de presse
EP2090800A1 (fr) 2008-02-15 2009-08-19 Herion Systemtechnik GmbH Combinaison de freinage pour embrayage
CN102966832A (zh) * 2012-10-26 2013-03-13 金丰（中国）机械工业有限公司 压力机二度落的检测装置及检测方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19538403C2 (de) * 1995-10-14 1999-05-12 Mueller Weingarten Maschf Presse mit einer Verriegelungseinrichtung für einen Pressenstößel
DE102010005127B4 (de) 2010-01-19 2012-11-22 Josef Reuke Maschinenbau GmbH Sicherungsvorrichtung für Pressen, Presse und Verfahren zur Sicherung einer Presse
DE202010001183U1 (de) 2010-01-19 2010-05-12 Josef Reuke Stahl- Und Maschinenbau Gmbh Sicherungsvorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2252329A1 (de) * 1971-10-26 1973-05-03 Masaaki Uchida Presse mit grossem hub
FR2461580A1 (fr) * 1979-07-21 1981-02-06 Hehl Karl Groupe de fermeture de moule a dispositif de securite pour machine a mouler par injection
DD226147A3 (de) * 1983-02-18 1985-08-14 Guenter Koehler Einrichtung zur verriegelung des stoessels an pressen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2252329A1 (de) * 1971-10-26 1973-05-03 Masaaki Uchida Presse mit grossem hub
FR2461580A1 (fr) * 1979-07-21 1981-02-06 Hehl Karl Groupe de fermeture de moule a dispositif de securite pour machine a mouler par injection
DD226147A3 (de) * 1983-02-18 1985-08-14 Guenter Koehler Einrichtung zur verriegelung des stoessels an pressen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0839640A3 (fr) * 1996-10-30 1998-12-30 Clearing Niagara, Inc. Blocage du coulisseau pour presse à estamper
WO1999064226A1 (fr) * 1998-06-12 1999-12-16 Renzo Cipriani Frein d'urgence pour presses mecaniques
EP1034917A3 (fr) * 1999-03-12 2001-11-14 Müller Weingarten AG Presse avec dispositif de verrouillage pour coulisseau de presse
EP2090800A1 (fr) 2008-02-15 2009-08-19 Herion Systemtechnik GmbH Combinaison de freinage pour embrayage
DE102008009516A1 (de) 2008-02-15 2009-08-20 Herion Systemtechnik Gmbh Kupplungs-Bremskombination
CN102966832A (zh) * 2012-10-26 2013-03-13 金丰（中国）机械工业有限公司 压力机二度落的检测装置及检测方法
CN102966832B (zh) * 2012-10-26 2016-01-27 金丰（中国）机械工业有限公司 压力机二度落的检测装置及检测方法

Also Published As

Publication number Publication date
DE3737197A1 (de) 1989-05-18
DE3871330D1 (de) 1992-06-25
EP0314975B1 (fr) 1992-05-20
BR8805658A (pt) 1989-07-18

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