EP1797975A1 - Automatic loader of punch holder cartridges and corresponding dies and method for automatic loading of a punch holder cartridge and a corresponding die in respective housings present in a punch press - Google Patents

Automatic loader of punch holder cartridges and corresponding dies and method for automatic loading of a punch holder cartridge and a corresponding die in respective housings present in a punch press Download PDF

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Publication number
EP1797975A1
EP1797975A1 EP06126334A EP06126334A EP1797975A1 EP 1797975 A1 EP1797975 A1 EP 1797975A1 EP 06126334 A EP06126334 A EP 06126334A EP 06126334 A EP06126334 A EP 06126334A EP 1797975 A1 EP1797975 A1 EP 1797975A1
Authority
EP
European Patent Office
Prior art keywords
punch
die
punch holder
supporting structure
automatic loader
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Withdrawn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
EP06126334A
Other languages
German (de)
English (en)
French (fr)
Inventor
Giovanni Vaccari
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.)
Simasv Srl
Original Assignee
Simasv Srl
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 Simasv Srl filed Critical Simasv Srl
Publication of EP1797975A1 publication Critical patent/EP1797975A1/en
Withdrawn legal-status Critical Current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
    • B21D37/145—Die storage magazines
    • 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
    • B21D37/04—Movable or exchangeable mountings for tools

Definitions

  • the invention concerns an automatic loader of punch holder cartridges and corresponding dies particularly suitable for the loading thereof in respective housings present in a punch press for elements substantially in sheet form.
  • the invention furthermore concerns a method for performing said loading.
  • Said punch presses generally comprise a framework, containing a housing for punches, and a base resting on the ground containing a housing for a die corresponding to the punch.
  • a first embodiment of said punch presses provides for manual loading of the punches and dies, i.e. of the tools and dies corresponding to said tools, by an operator who takes the tool and the die from a storage space and inserts them in the respective housings in the punch press.
  • a first of said drawbacks consists in the fact that during machining of the sheet metal, the punch press requires the presence of an operator to replace the punches and dies when necessary.
  • a further drawback consists in the fact that the operator's job is tiring due to the effort required for lifting notoriously heavy tools and dies.
  • a further drawback consists in the fact that, during said machining, the operator has to be very careful when handling the tools due both to the fact that they can be sharp and because they are heavy and therefore, if they are dropped, they could injure the operator.
  • Said automatic devices are generally able to load punches inside the respective housings in the punch press, taken from a storage space belonging to the automatic loader.
  • the loading is performed from the rear side of the punch press or frontally by means of a substantially horizontal movement.
  • said machines generally use a type of tool consisting of a tool holder cartridge such as, for example, the one commonly known under the name 'Amada'.
  • the object of the present invention is to overcome the above-mentioned drawback.
  • the object of the present invention is to provide an automatic loader for tools and corresponding dies in respective housings which can be used with punch presses in which the tool housing is a vertical mount locating fixture.
  • a further object of the present invention is to provide an automatic loader particularly suited to loading punch holder cartridges such as those, for example, commonly known under the name 'Amada'.
  • an automatic loader of punch holder cartridges and corresponding dies for a punch press for elements substantially in sheet form of the type comprising:
  • Said aims are furthermore achieved by a method for the automatic loading of a punch holder cartridge and a corresponding die in respective housings in a punch press for elements substantially in sheet form of the type comprising a framework, containing said respective housing for said punch holder cartridge, and a base resting on the ground containing said respective housing for said die, characterised in that it comprises the following insertion operations:
  • the die holder unit and the punch holder unit each comprise a rotating disc with one or more peripheral housings for the cartridges or for the dies and each comprise driving means which rotate said rotating discs.
  • the possibility of loading numerous punch holder cartridges and numerous dies beforehand on the rotating disc of the punch holder and die holder units allows the user to prepare on the loader of the invention all the punches necessary for machining of the sheet elements.
  • the operator avoids the personal risks and physical effort involved in the manual operation since throughout the machining, the automatic loader takes from its storage space the punch holder cartridges necessary and positions them inside the housing in the punch press.
  • the automatic loader of the invention is particularly suitable for use with machine tools in which the tool housing is a vertical mount locating fixture.
  • a punch press P for elements substantially in sheet form of the type comprising a framework I , having a housing A1 for the punch holder cartridge 2 and a base B resting on the ground and having a housing A2 for the die 3.
  • the automatic loader 1 comprises a first supporting structure 5 which forms a first substantially vertical axis Y' and is combined with a die holder unit 5a which forms, in turn, a first substantially horizontal axis X'.
  • the first supporting structure 5 is combined with first displacement means 6 for moving the entire structure 5 and, consequently, the die holder unit 5a according to the first horizontal axis X'.
  • the die holder unit 5a is also combined with handling means 7 which move it with respect to the first supporting structure 5 according to the first vertical axis Y'.
  • the automatic loader 1 of the invention also comprises a second supporting structure 9 which defines a second substantially vertical axis Y" and is combined with a punch holder unit 9a which, in turn, defines a second substantially horizontal axis X" .
  • second displacement means 10 are combined with the second supporting structure 9 to move the latter, and consequently the punch holder unit 9a, according to the second horizontal axis X", while the punch holder unit 9a is combined with handling means 11 which move it with respect to the second supporting structure 9 according to the second vertical axis Y".
  • the automatic loader 1 also comprises supporting means 4 and 8, of the first 5 and of the second supporting structure 9, combined with the punch press P.
  • the die holder unit 5a comprises a rotating disc 15 which, as can be observed in the detail of fig. 2, has a plurality of peripheral housings 16 where the dies 3 are housed.
  • Said rotating disc 15, as can be seen in fig. 1, is rotated by driving means 17 combined with the disc 15 and included in the die holder unit 5a.
  • the punch holder unit 9a comprises a rotating disc 18, shown in fig. 3, which presents a plurality of peripheral housings 19 for housing the punch holder cartridges 2 in a number equal to the number of housings 16 on the rotating disc 15 of the die holder unit 5a.
  • the punch holder unit 9a also comprises driving means 20 which rotate the above-mentioned rotating disc 18.
  • the punch holder cartridges 2 can contain one or more punches 21 according to the needs of the user and the punching operation which the punch press P is required to perform.
  • first 5 and the second supporting structure 8 to be combined respectively with the base B and the framework I of the punch press by means of distinct first supporting means 4 and second supporting means 8 each consisting of a pair of axial supporting elements 4a, 4b and 8a, 8b.
  • the latter are moved in a horizontal direction by a first 6 and a second displacement means 10 respectively.
  • Said embodiment does not constitute a limitation for further different embodiments according to which the supporting means and the displacement means can be at least partly coinciding or different.
  • a first example of said executive variations is shown in fig. 6 where it can be seen that the loader 100 presents single supporting means 104 and single displacement means 106 of the supporting structure 105.
  • handling means 107 of the die holder unit 105a they are also combined with the punch holder unit 109a for a first overall vertical movement, but this does not exclude the presence of the second handling means 111 of the punch holder unit 109a for a further vertical movement of said punch holder unit 109a independently of the movement of the die holder unit 105a.
  • fig. 6 shows the executive variation in which the loader 100 is combined with the base B of the punch press P.
  • Fig. 7 shows a further executive variation similar to the preceding one, but differing from it due to the arrangement of the loader 200 which rests on a framework 201 external to the punch press P.
  • the difference between the two executive variations referred to is that according to the first variation the vertical movements of the punch holder unit 109a and die holder unit 105a are partly opposed, whereas in the second executive variation all the movements in the vertical direction, in the insertion phase, are in the same direction.
  • the advantage of said executive variations lies in their construction simplicity, as they have fewer component parts with respect to the preferred embodiment.
  • the advantage of the preferred embodiment with respect to the two executive variations described lies in the fact that, unlike the variations, the movements never involve the work surface of the punch press so that any change of cartridges and dies during work does not require removal of the sheet element being processed.
  • the supporting means 4 and 8 each comprise a pair of axial supporting elements 4a, 4b and 8a, 8b each of which generally consists of a metal bar.
  • handling means 7 and 11 and the displacement means 6 and 10 comprise a hydraulic actuator which can consist, for example, of a cylinder with piston.
  • the handling means can each comprise, as in the case of the second handling means 107 of the first executive variation described, a gearmotor operatively connected to a worm screw which, in turn, is connected to the mechanical parts to be moved.
  • the operator loads all the housings 16 and 19, present in the discs 15 and 18 belonging to the punch holder units 9a and die holder units 5a , with the dies 3 and the corresponding punch holder cartridges 2 necessary for the work.
  • a first movement consists, as can be seen in fig. 8, of rotation of both the discs 15, 18, in a coordinated manner, to set the required punch holder cartridge 2 and corresponding die 3 to the insertion position.
  • the vertical movement is performed by the handling means 7 and 11 .
  • the frontal insertion is performed by the loader 1 by means of two feed operations performed by the displacement means 6 and 10 so that the cartridge 2 and the die 3 are fed from the outside to the inside of the punch press P.
  • the die 3 is positioned in the housing A2 on the base B of the punch press P, while the punch holder cartridge 2 is positioned along the vertical axis Y"' of the housing A1 on the framework I of the punch press P, but is not yet positioned inside said housing A1.
  • the loader 1 performs, as can be seen in fig. 11, a further vertical movement of the punch holder unit 9a via the handling means 11 so as to insert the punch holder cartridge 2 inside the respective housing A1.
  • the loader 1 moves the die holder unit 5a and the punch holder unit 9a away from the punch press P and activates the punch press P for the work to be performed on the sheet element.
  • the loader 1 takes the cartridge 2 and the die 3 out of the punch press P moving the punch holder units 9a and die holder units 5a near the punch press P so that the cartridge 2 and the die 3 go back into the housings 16, 19 in the rotating discs 15, 18.
  • Said movement is performed by using the displacement means 6, 10 again.
  • the cartridge 2 is lifted from the inside of its housing A1 in the punch press P by the second handling means 11, and the punch holder units 9a and die holder units 5a are moved horizontally away from the punch press P.
  • the punch holder units 9a and die holder units 5a move vertically away from each other to the rest position, otherwise the discs 15 and 18 are rotated to set the new cartridge 2 and the new die 3, necessary for continuing the work, to the insertion position.
  • the executive variations differ in that the cartridges and the dies are moved vertically in the initial phase not by opposed but by concordant movements and, in particular, in one case in a down-up direction and in the other in an up-down direction.
  • the cartridges and dies are moved vertically in the final phase in one case in an up-down direction and in the other in a down-up direction.
  • the automatic loader of the invention achieves all the established objects.
  • the invention achieves the object of providing an automatic loader for tools and corresponding dies in respective housings for use with punch presses in which the tool housing is a centering template inserted vertically.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
EP06126334A 2005-12-19 2006-12-18 Automatic loader of punch holder cartridges and corresponding dies and method for automatic loading of a punch holder cartridge and a corresponding die in respective housings present in a punch press Withdrawn EP1797975A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITVI20050336 ITVI20050336A1 (it) 2005-12-19 2005-12-19 Caricatore automatico di cartucce porta-punzone e di corrispondenti matrici e metodo per il caricamento automatico di una cartuccia porta-punzone e di una corrispondente matrice in rispettivi alloggiamenti presenti in una punzonatrice

Publications (1)

Publication Number Publication Date
EP1797975A1 true EP1797975A1 (en) 2007-06-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06126334A Withdrawn EP1797975A1 (en) 2005-12-19 2006-12-18 Automatic loader of punch holder cartridges and corresponding dies and method for automatic loading of a punch holder cartridge and a corresponding die in respective housings present in a punch press

Country Status (2)

Country Link
EP (1) EP1797975A1 (it)
IT (1) ITVI20050336A1 (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103358549A (zh) * 2013-07-24 2013-10-23 苏州凯尔博精密机械有限公司 一种生物菌培养膜焊接机用储料装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4860428A (en) * 1987-01-09 1989-08-29 W. A. Whitney Corp. Lifting hand for a punch press tool changer
EP0893173A2 (en) * 1997-07-16 1999-01-27 RAINER S.r.l. A turret punching machine
US6109159A (en) * 1998-05-01 2000-08-29 Amada Mfg America, Inc. Turret punch press
JP2005161356A (ja) * 2003-12-02 2005-06-23 Murata Mach Ltd パンチプレス用自動プログラミング装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4860428A (en) * 1987-01-09 1989-08-29 W. A. Whitney Corp. Lifting hand for a punch press tool changer
EP0893173A2 (en) * 1997-07-16 1999-01-27 RAINER S.r.l. A turret punching machine
US6109159A (en) * 1998-05-01 2000-08-29 Amada Mfg America, Inc. Turret punch press
JP2005161356A (ja) * 2003-12-02 2005-06-23 Murata Mach Ltd パンチプレス用自動プログラミング装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103358549A (zh) * 2013-07-24 2013-10-23 苏州凯尔博精密机械有限公司 一种生物菌培养膜焊接机用储料装置

Also Published As

Publication number Publication date
ITVI20050336A1 (it) 2007-06-20

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