EP3437752B1 - Multistation carousel for changing a tool and die of a press - Google Patents
Multistation carousel for changing a tool and die of a press Download PDFInfo
- Publication number
- EP3437752B1 EP3437752B1 EP18183151.2A EP18183151A EP3437752B1 EP 3437752 B1 EP3437752 B1 EP 3437752B1 EP 18183151 A EP18183151 A EP 18183151A EP 3437752 B1 EP3437752 B1 EP 3437752B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- station
- tool
- turntable
- carousel
- multistation carousel
- 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.)
- Active
Links
- 238000003825 pressing Methods 0.000 claims description 11
- 238000004088 simulation Methods 0.000 claims description 9
- 238000005461 lubrication Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 2
- 238000009429 electrical wiring Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 239000000725 suspension Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
Images
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
- 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
Definitions
- the object of the present invention is a multistation carousel for changing the tool of a press.
- Document EP 2 946 846 A1 discloses an example of an automatic tool changing device for a press brake, suitable for transferring forming tools from a tool magazine to a forming press and in reverse direction.
- One of the main needs felt in the sector is to be able to handle tools as quickly as possible, in order to reduce the set-up time of the press.
- the object of the present invention is to resolve the problems of the prior art while taking into account the requirements of the sector.
- a multistation carousel which allows the tool of a press to be changed quickly and automatically.
- the carousel is equipped with different types of stations, namely a station for loading/unloading the tool from the press, at least one die changing station and at least one pressing simulation or standby station, so as to allow the simultaneous execution of several different operations on different tools, all loaded onto the carousel itself.
- the carousel 1 is therefore a circular conveyor suitable for changing the dies of a press or for changing the tool of a press.
- Such figure 1 shows an example embodiment of the multistation carousel 1 with four stations 2, three of which accommodate a tool A.
- the carousel 1 is equipped with a load-bearing structure comprising an upper frame 11 supported by pillars 12.
- a turntable 3 supported by a lower frame 13 that rests directly on the ground.
- the turntable 3 is rotated by rotation means 31, which are housed underneath it on the lower frame 13.
- the rotation means 31 comprise at least one slewing ring and a toothed pinion-crown assembly driven by a gear motor which controls the rotation.
- stopping means located below the turntable 3 are provided to stop the rotation of the same at the stations 2.
- the turntable 3 is divided into a plurality of equal segments 32, each of which corresponds to one station 2.
- movable walls for example sliding walls, adapted to separate the turntable 3 into segments 32 to define the operating area of each station 2.
- the frame also comprises a central column 15, which extends from the upper frame 11 to the turntable 3, which is hollow internally and adapted to house mechanical components and/or electrical cables for handling the moving parts of the carousel 1.
- the carousel 1 comprises a station 21 for loading/unloading the tool from the press, i.e. one of the segments 32 of the turntable 3 is equipped in such a way as to allow the extraction or insertion of a tool (or of a die) from a press.
- the station 21 is therefore intended to face the exit of the press whereon the tool change is to be carried out.
- the loading/unloading station 21 comprises, adjacent to the turntable 2, an outer frame 22 whereon the tool is guided.
- the station 21 also comprises a suspension frame 29, equipped with guides and a hydraulic cylinder, suitable for the translation of the tool A.
- the station 21 then pushes/extracts the tool from the press onto the floor-mounted outer frame 22 and from there onto the turntable 2 via the suspension frame 29.
- the turntable 1 comprises at least one die changing station 23, i.e. one of the segments 32 of the turntable 3 is equipped in such a way as to allow the removal of the die extracted from the press from the carousel 1 (and in particular from the tool A), the placement on the carousel 1 of a new die in the tool A to be inserted in the press, and the reheating of the die.
- the die changing station 23 is therefore equipped with a mechanical arm 24 to allow the replacement of the die.
- the carousel 1 comprises at least one work station 25 or standby station 27, i.e. one of the segments 32 of the turntable 3 is equipped in such a way as to allow further activities on the tool A extracted from the press or on the new tool to be inserted into the press.
- the standby station 27 does not require any special equipment, as it is only used as a depot for a tool A awaiting a successive step.
- the work station 25 is, on the other hand, equipped with additional equipment to enable special activities to be carried out on the tool A, such as maintenance, lubrication and pressing simulation.
- the work station 25 is equipped with at least one handling device 26, adapted to allow the radial handling of the tool inside the station 25.
- the handling device 26 is fixed to the upper frame 11.
- the handling device 26 is a pusher driven by hydraulic cylinders.
- the handling device 26 also allows the vertical handling of the tool A.
- the device 26 is equipped with a vertical ram, driven by a hydraulic cylinder and equipped with automatic locks, to lift the upper die half (or tool half) and allow the operator to simulate a pressing step, complete also with lubrication points.
- the work station 25 comprises, adjacent to the turntable 2, an outer frame 28 whereon the tool A is placed, to allow the operator to perform the required activities on the tool.
- the multistation carousel 1 is equipped with control and safety systems for the correct and safe operation of the different steps and operations.
- the multistation carousel 1 comprises three stations:
- the standby station 27 and/or the changing station 23 is also further equipped as a pressing simulation station 25, i.e. it comprises a handling device 26 (radial and preferably also vertical) of the tool A and an outer frame 28 for supporting the tool during the required work activities.
- a pressing simulation station 25 i.e. it comprises a handling device 26 (radial and preferably also vertical) of the tool A and an outer frame 28 for supporting the tool during the required work activities.
- the multistation carousel 1 comprises four stations:
- the standby station 27 and/or the die changing station 23 is also further equipped as a pressing simulation station 25, i.e. it comprises a die handling device 26 (radial and preferably also vertical) and an outer frame 28 for supporting the tool during the required work activities.
- a pressing simulation station 25 i.e. it comprises a die handling device 26 (radial and preferably also vertical) and an outer frame 28 for supporting the tool during the required work activities.
- only the changing station 23 is also further equipped as pressing simulation station 25.
- a multistation carousel 1 in accordance with the present invention allows the tool and die of a press to be changed quickly and automatically.
- a multistation carousel 1 in accordance with the present invention being provided with different types of stations (loading/unloading of the tool from the press, die changing, pressing simulation, standby) allows the simultaneous execution of several different operations on different tools, all loaded on the carousel itself.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Description
- The object of the present invention is a multistation carousel for changing the tool of a press.
- In this sector, the use of tool change tables with a single station, arranged for the horizontal loading of a tool onto a press, is known. These tables have a special mechanism for transferring the tool to be loaded and unloaded in and out of the press. When using a single-station tool change table, the tool must first be removed from the press and then removed from the table with a bridge crane or forklift truck. A new tool is then placed on the table top and pushed into the press. The time required to perform a complete tool change depends on the size and weight of the tool: the larger and heavier the tool, the longer the time required. For example, a four-ton tool may be changed in about 20 minutes.
- The tool change operation alone is therefore rather long and complex and requires the manual work of experienced operators.
Document EP 2 946 846 A1 discloses an example of an automatic tool changing device for a press brake, suitable for transferring forming tools from a tool magazine to a forming press and in reverse direction. - One of the main needs felt in the sector is to be able to handle tools as quickly as possible, in order to reduce the set-up time of the press.
- The object of the present invention is to resolve the problems of the prior art while taking into account the requirements of the sector.
- Such object is achieved by a multistation carousel, which allows the tool of a press to be changed quickly and automatically. In addition, the carousel is equipped with different types of stations, namely a station for loading/unloading the tool from the press, at least one die changing station and at least one pressing simulation or standby station, so as to allow the simultaneous execution of several different operations on different tools, all loaded onto the carousel itself.
- Such object is achieved by a multistation carousel for changing a tool of a press in accordance with
claim 1. The dependent claims describe preferred embodiments of the invention. - Further features and advantages of the invention will become clearer in light of the detailed description of a preferred but not exclusive embodiment, illustrated by way of non-limiting example with the aid of the accompanying figures, wherein:
-
figure 1 shows an axonometric view of a multistation carousel for tool changing according to the present invention, in an example embodiment with four stations, whereon three tools are loaded; -
figure 2 shows a view from above of the multistation carousel shown infigure 1 ; -
figure 3 shows a side section view of the multistation carousel shown infigure 1 , showing the station for loading/unloading the tool from the press (left) and a standby station (right); -
figure 4 shows a side section view of the multistation carousel shown infigure 1 , wherein a pressing simulation station (left) and a die changing station (right) are visible. - With reference to the figures cited above, a multistation carousel for changing a tool in accordance with the present invention has been collectively indicated at 1. The
carousel 1 is therefore a circular conveyor suitable for changing the dies of a press or for changing the tool of a press. - Such
figure 1 shows an example embodiment of themultistation carousel 1 with fourstations 2, three of which accommodate a tool A. - The
carousel 1 is equipped with a load-bearing structure comprising anupper frame 11 supported bypillars 12. - Below the
upper frame 11 is housed aturntable 3 supported by alower frame 13 that rests directly on the ground. - The
turntable 3 is rotated by rotation means 31, which are housed underneath it on thelower frame 13. The rotation means 31 comprise at least one slewing ring and a toothed pinion-crown assembly driven by a gear motor which controls the rotation. In addition, stopping means located below theturntable 3 are provided to stop the rotation of the same at thestations 2. - The
turntable 3 is divided into a plurality ofequal segments 32, each of which corresponds to onestation 2. - Preferably, moreover, between the
upper frame 11 and theturntable 3 there are 14 movable walls, for example sliding walls, adapted to separate theturntable 3 intosegments 32 to define the operating area of eachstation 2. - Preferably, the frame also comprises a
central column 15, which extends from theupper frame 11 to theturntable 3, which is hollow internally and adapted to house mechanical components and/or electrical cables for handling the moving parts of thecarousel 1. - The
carousel 1 comprises astation 21 for loading/unloading the tool from the press, i.e. one of thesegments 32 of theturntable 3 is equipped in such a way as to allow the extraction or insertion of a tool (or of a die) from a press. - The
station 21 is therefore intended to face the exit of the press whereon the tool change is to be carried out. - The loading/
unloading station 21 comprises, adjacent to theturntable 2, anouter frame 22 whereon the tool is guided. Thestation 21 also comprises asuspension frame 29, equipped with guides and a hydraulic cylinder, suitable for the translation of the tool A. Thestation 21 then pushes/extracts the tool from the press onto the floor-mountedouter frame 22 and from there onto theturntable 2 via thesuspension frame 29. - The
turntable 1 comprises at least onedie changing station 23, i.e. one of thesegments 32 of theturntable 3 is equipped in such a way as to allow the removal of the die extracted from the press from the carousel 1 (and in particular from the tool A), the placement on thecarousel 1 of a new die in the tool A to be inserted in the press, and the reheating of the die. - The
die changing station 23 is therefore equipped with amechanical arm 24 to allow the replacement of the die. - In addition, the
carousel 1 comprises at least onework station 25 orstandby station 27, i.e. one of thesegments 32 of theturntable 3 is equipped in such a way as to allow further activities on the tool A extracted from the press or on the new tool to be inserted into the press. - The
standby station 27 does not require any special equipment, as it is only used as a depot for a tool A awaiting a successive step. - The
work station 25 is, on the other hand, equipped with additional equipment to enable special activities to be carried out on the tool A, such as maintenance, lubrication and pressing simulation. - The
work station 25 is equipped with at least onehandling device 26, adapted to allow the radial handling of the tool inside thestation 25. Preferably, thehandling device 26 is fixed to theupper frame 11. For example, thehandling device 26 is a pusher driven by hydraulic cylinders. - Preferably, the
handling device 26 also allows the vertical handling of the tool A. For example, thedevice 26 is equipped with a vertical ram, driven by a hydraulic cylinder and equipped with automatic locks, to lift the upper die half (or tool half) and allow the operator to simulate a pressing step, complete also with lubrication points. - Preferably, the
work station 25 comprises, adjacent to theturntable 2, an outer frame 28 whereon the tool A is placed, to allow the operator to perform the required activities on the tool. - Preferably, the
multistation carousel 1 is equipped with control and safety systems for the correct and safe operation of the different steps and operations. - In an example not shown and not in accordance with the claimed invention, the
multistation carousel 1 comprises three stations: - a
station 21 for loading/unloading the tool A from the press, equipped with anexternal frame 22 whereon the tool is slid; - a
standby station 27; - a
die changing station 23 equipped with amechanical arm 24 suitable to allow the replacement of the die. - Preferably, the
standby station 27 and/or the changingstation 23 is also further equipped as apressing simulation station 25, i.e. it comprises a handling device 26 (radial and preferably also vertical) of the tool A and an outer frame 28 for supporting the tool during the required work activities. - In a further example, shown in the attached figures, the
multistation carousel 1 comprises four stations: - a
station 21 for loading/unloading the tool A from the press, equipped with anexternal frame 22 on which the tool is slid; - a
pressing simulation station 25, equipped with a handling device 26 (radial and preferably also vertical) of the tool A and an outer frame 28; - a
standby station 27; - a
die changing station 23 equipped with amechanical arm 24 suitable to allow the replacement of the die. - Preferably, the
standby station 27 and/or thedie changing station 23 is also further equipped as apressing simulation station 25, i.e. it comprises a die handling device 26 (radial and preferably also vertical) and an outer frame 28 for supporting the tool during the required work activities. In the example shown in the figures, only the changingstation 23 is also further equipped aspressing simulation station 25. - Innovatively, a
multistation carousel 1 in accordance with the present invention allows the tool and die of a press to be changed quickly and automatically. - Advantageously, moreover, a
multistation carousel 1 in accordance with the present invention, being provided with different types of stations (loading/unloading of the tool from the press, die changing, pressing simulation, standby) allows the simultaneous execution of several different operations on different tools, all loaded on the carousel itself. - Obviously, one skilled in the art may make modifications to the multistation carousel described above, all contained within the scope of protection as defined by the following claims.
Claims (11)
- A multistation carousel (1) for changing a tool (A) wherein a die of a press is placed, comprising:- a support structure provided with an upper frame (11) supported by pillars (12), and a lower frame (13) which rests directly on the ground;- a turntable (3), located below the upper frame (11) and supported by the lower frame (13), rotated by rotation means (31) housed in the lower frame (13), said turntable (3) being divided into segments (32) each of which corresponds to a station (21, 23, 25, 27):- a loading/unloading station (21) of the tool (A) from the press;- a standby station (27);- a die changing station (23);- a work station (25), the carousel being characterised in that- the work station (25) is equipped with:-- an outer frame (28) adjacent to the turntable (2) for supporting the tool (A) during processing;-- a handling device (26) attached to the upper frame (11) to permit the radial and/or vertical handling of the tool (A).
- A multistation carousel (1) according to claim 1, wherein the work station (25) is equipped with additional equipment to enable maintenance and/or lubrication and/or pressing simulation to be carried out on the tool (A).
- A multistation carousel (1) according to claim 1 or 2, wherein the standby station (27) and/or the changing station (23) is further equipped with a handling device (26) and an outer frame (28) for supporting the tool.
- A multistation carousel (1), according to any one of the preceding claims, wherein the handling device (26) is a pusher driven by hydraulic cylinders, fixed to the upper frame (11).
- A multistation carousel (1), according to any one of the preceding claims, wherein the handling device (26) is equipped with a vertical ram, driven by a hydraulic cylinder, and equipped with automatic locks for lifting an upper tool half and allowing the operator to simulate a pressing step, complete also with lubrication points.
- A multistation carousel (1), according to any one of the preceding claims, wherein the loading/unloading station (21) comprises:- an outer frame (22) adjacent to the turntable (2), whereon the tool (A) is slid during entry/exit from the station (21);- a suspended frame (29) above the turntable (2), adapted to move the tool (A) in/out of the station (21).
- A multistation carousel (1), according to any one of the preceding claims, wherein the die changing station (23) is provided with a mechanical arm (24) for replacing the die.
- A multistation carousel (1), according to any one of the preceding claims, wherein the rotating means (31) of the turntable (3) comprise at least one slewing ring and a toothed pinion-crown assembly driven by a gear motor that controls the rotation.
- A multistation carousel (1), according to any one of the preceding claims, comprising stopping means, positioned below the turntable (3), to stop the rotation of the turntable (3) at the desired station.
- A multistation carousel (1), according to any one of the preceding claims, wherein moving walls (14) are arranged between the upper frame (11) and the turntable (3) to separate the turntable (3) into segments (31) and to define an operating area for each station (2).
- A multistation carousel (1), according to any one of the preceding claims, wherein the support structure comprises a central column (15) extending from the upper frame (11) to the turntable (3), internally hollow, to accommodate mechanical components and/or electrical wiring.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102017000088418A IT201700088418A1 (en) | 2017-08-01 | 2017-08-01 | GIOSTRA MULTI-POSITION FOR TOOL CHANGE AND MOLD OF A PRESS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3437752A1 EP3437752A1 (en) | 2019-02-06 |
EP3437752B1 true EP3437752B1 (en) | 2020-06-17 |
Family
ID=60570146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18183151.2A Active EP3437752B1 (en) | 2017-08-01 | 2018-07-12 | Multistation carousel for changing a tool and die of a press |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3437752B1 (en) |
ES (1) | ES2818027T3 (en) |
IT (1) | IT201700088418A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117123650B (en) * | 2023-10-24 | 2024-01-16 | 广东华雷金属制造有限公司 | Flanging sheet metal part bending equipment |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07290167A (en) * | 1994-04-27 | 1995-11-07 | Naniwa Seisakusho:Kk | Turn table rotary type die exchanging device |
US5882285A (en) * | 1997-10-03 | 1999-03-16 | Amada Mfg America, Inc. | Punching tool storing and interchanging system |
JPWO2012073335A1 (en) * | 2010-11-30 | 2014-05-19 | 小島プレス工業株式会社 | Mold changing method for press molding equipment |
JP5965245B2 (en) * | 2012-08-16 | 2016-08-03 | 株式会社アマダホールディングス | Buffer turret device |
EP2946846B1 (en) * | 2014-05-23 | 2016-04-06 | Felder KG | Tool changing device for a forming press |
-
2017
- 2017-08-01 IT IT102017000088418A patent/IT201700088418A1/en unknown
-
2018
- 2018-07-12 ES ES18183151T patent/ES2818027T3/en active Active
- 2018-07-12 EP EP18183151.2A patent/EP3437752B1/en active Active
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
EP3437752A1 (en) | 2019-02-06 |
IT201700088418A1 (en) | 2019-02-01 |
ES2818027T3 (en) | 2021-04-09 |
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