EP0188776B1 - Transfereinrichtung zum schrittweisen Material- und/oder Werkstücktransport, insbesondere in Pressen - Google Patents

Transfereinrichtung zum schrittweisen Material- und/oder Werkstücktransport, insbesondere in Pressen Download PDF

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Publication number
EP0188776B1
EP0188776B1 EP85116243A EP85116243A EP0188776B1 EP 0188776 B1 EP0188776 B1 EP 0188776B1 EP 85116243 A EP85116243 A EP 85116243A EP 85116243 A EP85116243 A EP 85116243A EP 0188776 B1 EP0188776 B1 EP 0188776B1
Authority
EP
European Patent Office
Prior art keywords
gripper rail
gripper
rail segments
transfer device
end portion
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
Application number
EP85116243A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0188776A2 (de
EP0188776A3 (en
Inventor
Günter Zierpka
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
Priority to AT85116243T priority Critical patent/ATE41112T1/de
Publication of EP0188776A2 publication Critical patent/EP0188776A2/de
Publication of EP0188776A3 publication Critical patent/EP0188776A3/de
Application granted granted Critical
Publication of EP0188776B1 publication Critical patent/EP0188776B1/de
Expired 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
    • B21D43/057—Devices for exchanging transfer bars or grippers; Idle stages, e.g. exchangeable

Definitions

  • the invention relates to a transfer device such. B. from DE-C-3 233 102 known for gradual material and / or workpiece transport, in particular in presses, with two extending along the transport path at a distance from each other in the direction of feed back and forth and transverse to their longitudinal extensions against each other driven gripper rails, each consisting of at least two fixed, but optionally separably interconnected gripper rail sections with form-fittingly interacting connecting means in the coupling position and with centering means in the region of the separation point.
  • Such tools are generally coupled with transfer systems for the step-by-step material and / or workpiece transport, the actual transfer device being assigned to the machine tool or press. It is therefore necessary to dissolve the gripper rails of such transfer systems into those rail sections that are assigned to the machine tool or press and those rail sections that are assigned to the tool.
  • the tool-side and machine-side gripper rail sections must be easily and quickly coupled and disconnectable again because the tool-side gripper rail sections must be moved out of the machine tool or the press with the tool.
  • DE-A-3 233 308 describes a press unit with gripper rails that can be exchanged when changing the tool, wherein a form-fitting, but detachable connection of tool-side and press-side gripper rail sections is brought about by interlocking tooth-like surfaces, in such a way that the form-fittingly interacting connecting means engage gripper rail sections on the tool side from above in corresponding counter contours of gripper rail sections on the press side and then be locked in this engagement position by additional locking means.
  • a device for releasably connecting gripper rail parts of the gripper rails in a transfer press which is designed as a hinged gripper rail lock.
  • this gripper rail lock fixes the gripper rail parts to be connected to one another in such a way that a separating gap remains between the respectively associated ends of the gripper rails, which gap is bridged by the hinged lock part.
  • DE-C-3 233 102 also describes a device for the releasable connection of gripper rail parts in a transfer press, in which gripper rail parts with mutually facing gripper rail parts are fastened to the front ends and a threaded sleeve provided with an external thread is fastened in a nut part is mounted, which can be screwed into the internal thread of the other nut part via a drive element fastened in or on the respective gripper rail.
  • a centering ring connected to the threaded sleeve comes into an end-face centering recess of the nut part arranged at the end of the other gripper rail part, so that at the end of the coupling process the gripper rail parts to be coupled are centered.
  • the connecting element is a tensioning rod which extends in the coupling position beyond the separation point between adjacent gripper rail sections and is axially movable and rotatable in the one gripper rail section with a holding surface of an end part of the other gripper rail section engages behind gripping head, which can be axially clamped between the gripper rail sections and brought out of engagement with the holding surface of the mentioned end part as a result of rotation about its longitudinal axis with its clamping head and can be pulled axially out of its engagement position projecting into the mentioned end part.
  • the coupling or uncoupling of a tool-side gripper rail section with at least one machine-side gripper rail section is accomplished in a simple manner, for example by the tensioning rod being inserted into a press after a tool equipped with tool-side gripper rail sections and accommodated on a shuttle table into a press with the gripper rail sections aligned with one another
  • Corresponding longitudinal recess, which extends in the end part of the tool-side gripper rail section, is retracted and then rotated with its clamping head into a locking position engaging behind the holding surface of the end part, the centering means assigned in the region of the separation point to the two gripper rail sections to be coupled in each case, precisely assigning them to one another parts to be coupled and as a result of tensioning the tension rod, a form-fitting, firm connection of the gripper bar Bee sections succeed in being able to absorb the bending moments that occur without any problems.
  • An expedient embodiment of the invention is characterized in that the clamping head of the clamping rod is designed like a hammer head and that the holding surface which is positively engaged by the latter in the coupling position in the end part of the one gripper rail section has a transverse recess through which the clamping head rotates from the position in an angular position relative to its clamping position End piece can be pulled out.
  • an unproblematic coupling succeeds in that the tension rod is axially displaced over the separation point between the two gripper rail sections to be coupled to one another in a position in which the clamping surfaces of the clamping head protrude beyond the corresponding holding surfaces of the end part of the one gripper rail section, whereupon only a rotation of the tension rod about its longitudinal axis is required in such a way that the tensioning surfaces of the tensioning head engage behind the holding surfaces in the end part.
  • the tensioning rod is clamped axially between the two gripper rail sections to be coupled with one another, a form-fitting, but at any time releasable coupling of the mentioned gripper rail sections is realized.
  • clamping head and the holding surface engaged by the latter in the coupling position have cooperating centering surfaces in the end part of a gripper rail section, which can advantageously be designed as clamping surfaces consisting of a cone and a counter-cone.
  • the tensioning rod is moved in a translatory and rotary manner and tensioned between the gripper rail sections to be coupled to one another
  • the tensioning rod with drive means for generating a translatory and rotary movement and for Applying an axial clamping force in the coupling position is operatively connected, each of which is assigned to the gripper section in which the clamping rod is rotatably and axially movably mounted.
  • the two gripper rail sections in the region of the separation point are provided with centering surfaces which cooperate in the coupling position and which can likewise consist of a cone and a counter-cone.
  • the press 10 which is only indicated in FIG. 1, has a changing table 12 which can be moved in a known manner on rails 11 between the position shown in the press and an unillustrated mounting position outside the press, on which a tool, which is only indicated schematically, is accommodated. Furthermore, the press is equipped with a likewise indicated transfer device 14, the two gripper rails which extend in parallel and at a distance from one another through the press and reciprocally according to the double arrow 15 and correspondingly guided by the double arrow 16 in a manner of no further interest here 17 has.
  • Each of these gripper rails consists of two gripper rail sections 18, 18 'assigned to the press 10 and a gripper rail section 19 which, with the two gripper rail sections guided in the press, at 20, 20' in a manner still to be described below, but optionally detachably coupled and on which Changing table 12 of the press 10 is assigned to the received tool.
  • FIG. 2 shows the fixed but optionally releasable connection of the press-side gripper rail section 18 to the tool-side gripper rail section 19.
  • the press-side and the tool-side gripper rail sections are equipped with centering means in the form of cones, the end face of the press-side gripper rail section 18 an inner cone 22 and the end face of the tool-side gripper rail section 19 has a matching outer cone 23.
  • An axially movable and rotatable tension rod 25 is used to produce the fixed but releasable coupling connection, which is received in a guide 26 in the press-side gripper rail section and can be actuated by means of arranged but not shown drive means.
  • the tension rod 25 extends with play through a longitudinal recess 28 in the region of the end piece 29 of the tool-side gripper rail section 19 and has at its end remote from the press-side gripper rail section 18 a hammer head-like clamping head 30, which is shown in FIGS 3 shown position engages behind a holding surface 31 within the end piece 29 of the tool-side gripper rail section and thereby holds the two gripper rail sections in their coupling position in the manner shown in FIG. 2.
  • the holding surface 31 in the end piece 29 and the clamping surface 32 of the clamping head 30 interacting therewith in the coupling position are designed as compressing cones.
  • the clamping force required to maintain the coupling position is applied by the actuating means for the clamping rod 25 already mentioned, which are accommodated in the press-side gripper rail section 18. Otherwise, the clamping rod 25 is axially movable and rotatably received in the press-side gripper rail section 18 by the actuating means mentioned, as indicated by the double arrow 33 and the rotary arrow 34 in FIG. 2, and the longitudinal recess 28 in the end part 29 of the gripper rail section 19 is transverse to one direction the coupling position shown in FIGS. 2 and 3 dimensioned such that the clamping head 30 of the clamping rod can be pulled out of the engagement position into the end part 29 by a corresponding rotational position through the longitudinal recess.
  • the clamping rod 25 must be moved axially from the illustrated clamping position according to arrow 33 in the direction of the gripper rail section 19 on the tool side so that the clamping head 30 with a in the end part 29 arranged contact surface 35 cooperates and push the tool-side gripper rail section 19 away from the press-side gripper rail section 18 to such an extent that the conical centering surfaces 22, 23 disengage in the region of the separation point between the two gripper rail sections.
  • the clamping rod 25 is brought into a rotational position according to the arrow 34, in which the clamping head arrives from a position which engages behind the holding surfaces 31 and can be pulled out of the engagement position in the end part 29 of the tool-side gripper rail section according to arrow 33 by the longitudinal recess 25 which is widened at an angle to the clamping position .
  • a press-side gripper rail section 18 'extending on the other side from the tool 13 must still be uncoupled.
  • the tool-side gripper rail section which has already been uncoupled on the first-mentioned side, is fixed to the tool by suitable means, so that due to an axial displacement of the tensioning rod of this end section, the restoring force which then becomes effective on the gripper rail section 18 ' also displaced by a predetermined axial dimension with the result that the centering surfaces effective between this gripper rail section and the tool-side gripper rail section fixed in the aforementioned manner come out of engagement.
  • the tool-side gripper rail section 19 is thus uncoupled from both press-side gripper rail sections 18, 18 '.
  • the two gripper rails of the transfer device are equipped with mutually identical means for firmly but optionally releasably connecting the gripper rail sections, and that in the region of the gripper rail sections removed from the drive of the transfer unit, connecting means of the same design are provided.
  • the gripper rail sections of this tool Coupled in an analogous manner to the machine-side gripper rail sections, but in the reverse order of the above-described processes, whereby instead of pushing away the gripper rail sections removed from the drive of the transfer unit as a result of an effective restoring force, the mentioned gripper rail sections now have to be used when clamping to the tool-side gripper rail sections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Reciprocating Conveyors (AREA)
  • Specific Conveyance Elements (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Automatic Assembly (AREA)
  • Chain Conveyers (AREA)
  • Forging (AREA)
  • Advancing Webs (AREA)
  • Press Drives And Press Lines (AREA)
EP85116243A 1985-01-22 1985-12-19 Transfereinrichtung zum schrittweisen Material- und/oder Werkstücktransport, insbesondere in Pressen Expired EP0188776B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85116243T ATE41112T1 (de) 1985-01-22 1985-12-19 Transfereinrichtung zum schrittweisen materialund/oder werkstuecktransport, insbesondere in pressen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853501946 DE3501946A1 (de) 1985-01-22 1985-01-22 Transfereinrichtung zum schrittweisen material- und/oder werkstuecktransport, insbesondere in pressen
DE3501946 1985-01-22

Publications (3)

Publication Number Publication Date
EP0188776A2 EP0188776A2 (de) 1986-07-30
EP0188776A3 EP0188776A3 (en) 1987-03-25
EP0188776B1 true EP0188776B1 (de) 1989-03-08

Family

ID=6260409

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85116243A Expired EP0188776B1 (de) 1985-01-22 1985-12-19 Transfereinrichtung zum schrittweisen Material- und/oder Werkstücktransport, insbesondere in Pressen

Country Status (4)

Country Link
EP (1) EP0188776B1 (enrdf_load_stackoverflow)
AT (1) ATE41112T1 (enrdf_load_stackoverflow)
CA (1) CA1253530A (enrdf_load_stackoverflow)
DE (2) DE3501946A1 (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3520343A1 (de) * 1985-06-07 1986-12-11 L. Schuler GmbH, 7320 Göppingen Vorrichtung zum kuppeln und entkuppeln von greiferschienenteilstuecken einer transferpresse
DE3636011A1 (de) * 1986-10-23 1988-04-28 Schuler Gmbh L Vorrichtung und verfahren zum kuppeln und entkuppeln von greiferschienenteilen in einer transferpresse
DE3636010C2 (de) * 1986-10-23 1997-12-18 Schuler Pressen Gmbh & Co Vorrichtung zum Kuppeln und Entkuppeln von Greiferschienenteilen in einer Transferpresse
DE3733881A1 (de) * 1987-10-07 1989-04-20 Guenter Zierpka Kupplungsvorrichtung zum festen, jedoch wahlweise trennbaren verbinden von greiferschienenabschnitten einer transfereinrichtung zum schrittweisen material- und/oder werkstuecktransport
DE3812365A1 (de) * 1988-04-14 1989-10-26 Schuler Gmbh L Transferpresse mit in ihrer laenge teilbaren greiferschienen
DE3822473A1 (de) * 1988-07-02 1990-01-04 Schuler Gmbh L Vorrichtung zum kuppeln und entkuppeln von greiferschienenteilen
DE3901201A1 (de) * 1989-01-17 1990-07-19 Expert Maschbau Ketten-speichervorrichtung
SE465863B (sv) * 1989-07-13 1991-11-11 Volvo Ab Oeverfoeringsanordning vid presslinje
DE4223421C2 (de) * 1992-07-16 2001-07-19 Erfurt Umformtechnik Gmbh Vorrichtung zur lösbaren Verbindung von Greiferschienenteilen in einer Transferpresse
CN108339899A (zh) * 2017-12-27 2018-07-31 威唐力捷智能工业技术（无锡）有限公司 一种换模设备的固定装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123389A (en) * 1964-03-03 biesecker
DE6751348U (de) * 1968-07-26 1969-01-30 Licentia Gmbh In spannschienen mit laengsschlitzen gehaeltener befestigungsbolzen mit seitlichen halteflanschen.
US4293984A (en) * 1978-03-13 1981-10-13 John Kaufmann, Jr. Spring tension fastener
DE3150508C1 (de) * 1981-12-21 1983-11-17 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Vorrichtung zur lösbaren Verbindung von Greiferschienenteilen der Greiferschienen in einer Transfer-Presse
DE3233102C1 (de) * 1982-09-07 1983-05-19 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Vorrichtung zur lösbaren Verbindung von Greiferschienenteilen der Greiferschienen in einer Transfer-Presse
DE3235308A1 (de) * 1982-09-24 1984-03-29 L. Schuler GmbH, 7320 Göppingen Pressen-einheit mit zugleich mit dem werkzeugwechsel auszutauschenden greiferschienen

Also Published As

Publication number Publication date
DE3501946C2 (enrdf_load_stackoverflow) 1987-10-29
DE3501946A1 (de) 1986-07-24
CA1253530A (en) 1989-05-02
EP0188776A2 (de) 1986-07-30
EP0188776A3 (en) 1987-03-25
DE3568542D1 (en) 1989-04-13
ATE41112T1 (de) 1989-03-15

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