US20020023477A1 - Pneumatic control system for quick clamping of cornice brake tools - Google Patents
Pneumatic control system for quick clamping of cornice brake tools Download PDFInfo
- Publication number
- US20020023477A1 US20020023477A1 US09/854,769 US85476901A US2002023477A1 US 20020023477 A1 US20020023477 A1 US 20020023477A1 US 85476901 A US85476901 A US 85476901A US 2002023477 A1 US2002023477 A1 US 2002023477A1
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- United States
- Prior art keywords
- intermediates
- clamping
- jaws
- jaw
- under pressure
- 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.)
- Abandoned
Links
- 239000000543 intermediate Substances 0.000 claims abstract description 93
- 239000012530 fluid Substances 0.000 claims abstract description 28
- 239000013013 elastic material Substances 0.000 claims 1
- 238000005452 bending Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005482 strain hardening 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
- B21D5/0209—Tools therefor
- B21D5/0236—Tool clamping
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
- B21D5/0209—Tools therefor
Definitions
- the present invention relates to a pneumatic control system for quick clamping, release, withdrawal and change of cornice brake tools.
- the general purpose of the present invention is to produce a pneumatic system for quick tool clamping in cornice brakes which would not require tubes for supply of fluid under pressure running between the intermediates and which would allow quick removal of the intermediates.
- Another purpose of the system is to allow installation of punches not requiring intermediates or installation of intermediates for manual clamping the punch tang on the intermediate.
- the quick tool clamping system of the present invention relates to a cornice brake in which there are rows of punches and dies and modular units consisting of intermediates and clamping jaws for the intermediates and jaws for clamping punches, with the latter being operated by actuators driven by pneumatic cylinders, and is characterized in that:
- FIG. 1 shows a perspective view of work stations of a cornice brake of known type with pneumatic quick clamping of tools
- FIG. 2 shows a cross section view of a work station (upper part) of FIG. 1,
- FIG. 3 shows the work station of FIG. 1 without the upper tools of the middle station
- FIG. 4 shows a cross section view of an intermediate and of the punch and intermediate clamping jaws in accordance with an embodiment of the quick clamping system of the present invention
- FIG. 5 shows a view from the right of the jaw 14 of FIG. 4,
- FIG. 5 a shows an enlarged view of a detail of FIG. 5,
- FIG. 6 shows a view from the left of the intermediate 13 and the jaw 29 of FIG. 4, and
- FIGS. 7 to 9 a show cross section views of the components 5 , 13 and 14 of FIG. 4 in accordance with two variants of the valve 22 of the same FIG.
- FIGS. 1, 2 and 3 relate to a known quick tool clamping and unclamping system with pneumatic control of the type described in the above mentioned documents.
- FIG. 1 the different parts represent:
- FIG. 2 (corresponding to FIG. 4 of the above mentioned Italian patent application no. MI98A001084) shows a cross section of the pneumatic punch clamping system of FIG. 1.
- the fluid under pressure for example air
- the piston 11 of the pneumatic cylinder moves towards the right and cause clamping of the jaw 6 ′ against the tang of the punch 2 ′.
- FIG. 3 shows the case in which the press of FIG. 1 requires removal of a punch (the center one in the FIG) and associated intermediate to allow special bending. In this event it is necessary to remove, together with the middle intermediate, the two tubes supplying fluid under pressure and connecting the intermediate to those beside it and then replace the two tubes with a single tube 12 to restore the connection of the intermediates 3 ′ and 3 ′′.
- FIGS. 4, 5 and 6 show a pneumatic system for quick clamping and unclamping, withdrawal and change of tools in accordance with the present invention.
- the system used for supplying fluid under pressure in the channel 16 calls for a serial supply of the clamping jaws 14 of the intermediates through tubes 23 connecting together each side-by-side pair of jaws.
- This type of supply is not binding however because a non-serial but independent supply for the channel 16 of each jaw can be provided in a quite obvious manner.
- FIG reference number 24 designates the holes in which are inserted the screws 24 ′ for clamping the jaw
- 25 designates two holes in which springs tending to withdraw the jaw from the cursor 5 are housed.
- FIGS. 5 and 5 a (the latter showing an enlarged view of the part of FIG. 5 involved with the straight groove 21 ) also show on the internal surface of the jaw an annular groove in which is inserted a seal 26 (rubber or other similar material) designed to ensure sealing of the fluid under pressure when the jaw 14 is clamped against the intermediate.
- a seal 26 rubber or other similar material
- FIG. 6 shows a view from the left of the intermediate 13 and the jaw 29 ) shows the path followed by the channel 15 for carrying fluid under pressure (entering from the hole 19 ) up to the chamber 27 of the pneumatic cylinder 9 .
- FIGS. 7 to 9 a show the usefulness of the groove 21 and two different ways of providing the valve 22 of FIG. 4.
- FIGS. 7 and 7 a (the latter being an enlarged view of the part of FIG. 7 surrounded by a circle in broken lines) concerns an embodiment of the valve 22 of the manually operated type.
- the valve is shown open. It comprises a cylindrical chamber 37 coaxial with the axis of the hole 20 and having a diameter greater than that of the hole. It also comprises an elastic seal ring 30 located on the bottom of the chamber and a small cylinder 31 fastened near the end of a screw 32 so as to be pressable against the ring 30 or withdrawable therefrom by screwing or unscrewing the screw.
- FIG. 7 a shows the cylinder 31 spaced from the ring 30 so as to allow the discharge of the fluid under pressure from the hole 20 into the groove 21 , the hole 19 and the channel 15 , and the resulting clamping of the jaw 29 (FIG. 4).
- the closed condition of the valve 22 not only allows withdrawal of the intermediate but allows use of conventional intermediates (without internal channel) or punches not requiring intermediates. Indeed, in these cases the jaw 14 behaves like a conventional jaw and operation under pneumatic control of the other positions of the press is not affected because closing of the hole 20 prevents falling of the fluid pressure.
- FIGS. 8 and 8 a show a second version of the valve 32 and specifically a valve with automatic operation.
- the valve is again structured like that of FIGS. 7 and 7 a except that the cylinder 31 ′ is free to traverse in the chamber 37 and is pressed rightward by a spring 40 .
- the rod 41 on which the cylinder 31 ′ is fastened has its right end which in closed position of the valve (cylinder 31 ′ pressed by the spring against the ring 30 ) emerges from the hole 20 , while the same end when it is brought level with the outlet edge of the hole puts the valve in open position (FIG. 8 a ).
- This automatic opening and closing system of the valve 22 requires use of a clever device if it is desired to use the jaw 14 for clamping conventional intermediates or punches not requiring intermediates. Indeed, in this case it is necessary to avoid operation of the valve by these tools.
- This can be secured by providing a projection 42 near the seal 26 and a corresponding recess (step 43 of FIG. 8 a ) in the intermediate with channel.
- This device has the effect of allowing operation of the valve by the intermediates in accordance with the present invention and of preventing operation when conventional intermediates or punches not requiring intermediates are used. Indeed, in the latter case as illustrated in FIGS. 9 and 9 a the projection 42 prevents operation of the valve by the tool on which the jaw 14 is clamped and this way the valve is always in closed position.
- Said variants could concern for example the groove 21 which could be replaced or accompanied by a similar groove located on the intermediate 13 and at the level of the hole 19 . In addition this groove could be missing if lateral traversing is not provided for the intermediates.
- Other variants could concern the cutoff valve as regards its structural features and its position not necessarily near the hole 20 or in the intermediate clamping jaw. This possibility of different position is valid in particular for the manually operated valve with independent feed of each jaw.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The quick tool clamping system relates to a cornice brake in which there are rows of punches and dies and modular units consisting of intermediates and clamping jaws for the intermediates and jaws for clamping punches, with the latter being operated by actuators driven by pneumatic cylinders, and is characterized in that: a) in the intermediates and the jaws clamping the intermediates to the cursor of the press there are channels for feeding of the fluid under pressure to the actuator cylinder; b) said channels lead to at least one hole opening onto the opposing surfaces of each pair of intermediates and associated clamping jaw; and c) on at least one of the two opposing surfaces of each pair of intermediates and associated clamping jaw the associated hole opens onto a groove running horizontally in the surface and positioned at the same level as the hole opening onto the opposing surface, and in the circuit for supplying the fluid under pressure to every intermediate a valve is inserted designed to intercept the flow of fluid towards the intermediate.
In accordance with a variation the groove running horizontally is missing and the holes opening onto the opposing surfaces of each pair of intermediates and associated clamping jaw are mutually opposed.
Description
- The present invention relates to a pneumatic control system for quick clamping, release, withdrawal and change of cornice brake tools.
- For cold working of sheet metal work pieces by bending, presses termed ‘cornice brakes’ using appropriately shaped pairs of tools (punches and dies) are commonly used. In these machines the various processing steps require frequent replacement or lateral shifting of the tools. These operations are usually performed either by completely manual procedures which require long pauses for loosening and then clamping of numerous modular unit bolts for clamping the tools, or with the aid of clamping and unclamping systems for the modular units with automatic hydraulic or pneumatic control. When the punch tip which is opposite the bending axis is not positioned on the axis of the punch tang which clamps the punch to the press cursor the use of adaptor or intermediate modules termed ‘extensions’ or ‘intermediates’ which act as punch lengthening members is required.
- Known pneumatic control systems for quick clamping of tools are described in European patent no. 0 754 506, in Italian patent application no. MI98A 001084 and in sales pamphlet ‘Quick tool change on cornice brakes’ of the Teda s.r.l. company with seat in Piacenza, Italy.
- These known systems call for modular tool clamping and unclamping units comprising punch clamping jaws and actuators driven by pneumatic cylinder fed through channels in the body of the intermediates and through tubes running between the intermediates of each pair of intermediates placed side by side. These tubes are capable of running with compressed air seal within the above cavities so as to allow limited lateral traversing of the intermediates along the front of the brake before they are clamped.
- These systems do not give rise to particular problems if the work to be performed on the brake does not require removal of the intermediates. But if this removal is required it is necessary to remove together with the intermediates each pair of the above mentioned tubes inserted in the intermediates removed and then install a tube of sufficient length in place of each intermediate and each pair of tubes removed. These removal and replacement operations cause loss of time.
- The general purpose of the present invention is to produce a pneumatic system for quick tool clamping in cornice brakes which would not require tubes for supply of fluid under pressure running between the intermediates and which would allow quick removal of the intermediates. Another purpose of the system is to allow installation of punches not requiring intermediates or installation of intermediates for manual clamping the punch tang on the intermediate.
- The quick tool clamping system of the present invention relates to a cornice brake in which there are rows of punches and dies and modular units consisting of intermediates and clamping jaws for the intermediates and jaws for clamping punches, with the latter being operated by actuators driven by pneumatic cylinders, and is characterized in that:
- a) in the intermediates and the jaws clamping the intermediates to the cursor of the press there are channels for feeding of the fluid under pressure to the actuator cylinder,
- b) said channels lead to at least one hole opening onto the opposing surfaces of each pair of intermediates and associated clamping jaw,
- c) on at least one of the two opposing surfaces of each pair of intermediates and associated clamping jaw the associated hole opens onto a groove running horizontally in the surface and positioned at the same level as the hole opening onto the opposing surface, and
- d) in the circuit for supplying the fluid under pressure to every intermediate a valve is inserted designed to intercept the flow of fluid towards the intermediate.
- In accordance with a variation the groove running horizontally is missing and the holes opening onto the opposing surfaces of each pair of intermediates and associated clamping jaw are mutually opposed.
- To better explain the innovative principles of the present invention and its advantages there is described below with the aid of the annexed drawings possible embodiments thereof by way of non-limiting example.
- In the drawings:
- FIG. 1 shows a perspective view of work stations of a cornice brake of known type with pneumatic quick clamping of tools,
- FIG. 2 shows a cross section view of a work station (upper part) of FIG. 1,
- FIG. 3 shows the work station of FIG. 1 without the upper tools of the middle station,
- FIG. 4 shows a cross section view of an intermediate and of the punch and intermediate clamping jaws in accordance with an embodiment of the quick clamping system of the present invention,
- FIG. 5 shows a view from the right of the
jaw 14 of FIG. 4, - FIG. 5a shows an enlarged view of a detail of FIG. 5,
- FIG. 6 shows a view from the left of the intermediate13 and the
jaw 29 of FIG. 4, and - FIGS.7 to 9 a show cross section views of the
components valve 22 of the same FIG. - FIGS. 1, 2 and3 relate to a known quick tool clamping and unclamping system with pneumatic control of the type described in the above mentioned documents.
- In FIG. 1 the different parts represent:
-
-
-
-
cursor 5 of the press, -
-
-
- FIG. 2 (corresponding to FIG. 4 of the above mentioned Italian patent application no. MI98A001084) shows a cross section of the pneumatic punch clamping system of FIG. 1.
- In accordance with this system the fluid under pressure, for example air, controls the pneumatic cylinder9 (made in the intermediate body) through the
channel 8′ and theduct 10. When the fluid comes under pressure thepiston 11 of the pneumatic cylinder moves towards the right and cause clamping of thejaw 6′ against the tang of thepunch 2′. - FIG. 3 shows the case in which the press of FIG. 1 requires removal of a punch (the center one in the FIG) and associated intermediate to allow special bending. In this event it is necessary to remove, together with the middle intermediate, the two tubes supplying fluid under pressure and connecting the intermediate to those beside it and then replace the two tubes with a
single tube 12 to restore the connection of theintermediates 3′ and 3″. - FIGS. 4, 5 and6 show a pneumatic system for quick clamping and unclamping, withdrawal and change of tools in accordance with the present invention.
- This system displays the following main features:
- a) each intermediate13 and in the associated
jaw 14 for clamping the intermediate to thecursor 5 of the press there arechannels actuator cylinder 9 controlling clamping of thetang 18 of the punch against the intermediate, - b) the above mentioned channels lead to a
respective hole - c) on one of the two opposing surfaces and specifically on the jaw surface the associated
hole 20 opens onto agroove 21 running horizontally in the surface and positioned at the same level as thehole 19 opening onto the opposing intermediate surface, and - d) in the supply circuit of the fluid under pressure towards each intermediate a
valve 22 designed to intercept the flow of fluid towards the intermediate is inserted. - As shown in FIG. 5 (view from the right of the jaw14) the system used for supplying fluid under pressure in the
channel 16 calls for a serial supply of the clampingjaws 14 of the intermediates throughtubes 23 connecting together each side-by-side pair of jaws. This type of supply is not binding however because a non-serial but independent supply for thechannel 16 of each jaw can be provided in a quite obvious manner. - In the same
FIG reference number 24 designates the holes in which are inserted thescrews 24′ for clamping the jaw, and 25 designates two holes in which springs tending to withdraw the jaw from thecursor 5 are housed. - FIGS. 5 and 5a (the latter showing an enlarged view of the part of FIG. 5 involved with the straight groove 21) also show on the internal surface of the jaw an annular groove in which is inserted a seal 26 (rubber or other similar material) designed to ensure sealing of the fluid under pressure when the
jaw 14 is clamped against the intermediate. - FIG. 6 (showing a view from the left of the intermediate13 and the jaw 29) shows the path followed by the
channel 15 for carrying fluid under pressure (entering from the hole 19) up to thechamber 27 of thepneumatic cylinder 9. - In the same FIG,28 designates the holes for insertion of the
pins 28′ which allow clamping (with a horizontally pivoted movement) of thejaw 29. - FIGS.7 to 9 a show the usefulness of the
groove 21 and two different ways of providing thevalve 22 of FIG. 4. - The version of FIGS. 7 and 7a (the latter being an enlarged view of the part of FIG. 7 surrounded by a circle in broken lines) concerns an embodiment of the
valve 22 of the manually operated type. In this FIG the valve is shown open. It comprises acylindrical chamber 37 coaxial with the axis of thehole 20 and having a diameter greater than that of the hole. It also comprises anelastic seal ring 30 located on the bottom of the chamber and asmall cylinder 31 fastened near the end of ascrew 32 so as to be pressable against thering 30 or withdrawable therefrom by screwing or unscrewing the screw. - FIG. 7a shows the
cylinder 31 spaced from thering 30 so as to allow the discharge of the fluid under pressure from thehole 20 into thegroove 21, thehole 19 and thechannel 15, and the resulting clamping of the jaw 29 (FIG. 4). - To ensure said clamping it is not necessary for the
hole 19 to be exactly opposite the lower edge of thehole 20 but it is sufficient that it be opposite any point of the groove 21 (see FIGS. 5 and Sa). - This makes it possible to allocate the intermediate on the front of the press to different positions within a range of variability equal to the length of the
groove 21. - To use the press under operating conditions similar to those of FIG. 3, i.e. with one or more intermediates uninstalled, it is sufficient to manually tighten the
screw 32 until it compresses theseal ring 30 by means of thecylinder 31. By so doing, the stream of liquid under pressure towards thehole 20 is interrupted, thejaw 14 can be loosened manually and the intermediate 13 can be withdrawn without causing leakage of the fluid under pressure from thehole 20 during the subsequent starting up of the press. - The closed condition of the
valve 22 not only allows withdrawal of the intermediate but allows use of conventional intermediates (without internal channel) or punches not requiring intermediates. Indeed, in these cases thejaw 14 behaves like a conventional jaw and operation under pneumatic control of the other positions of the press is not affected because closing of thehole 20 prevents falling of the fluid pressure. - FIGS. 8 and 8a show a second version of the
valve 32 and specifically a valve with automatic operation. - The valve is again structured like that of FIGS. 7 and 7a except that the
cylinder 31′ is free to traverse in thechamber 37 and is pressed rightward by aspring 40. Therod 41 on which thecylinder 31′ is fastened has its right end which in closed position of the valve (cylinder 31′ pressed by the spring against the ring 30) emerges from thehole 20, while the same end when it is brought level with the outlet edge of the hole puts the valve in open position (FIG. 8a). - Accordingly when the clamping screws24′ of the
jaw 14 are loosened the jaw withdraws from the intermediate 13 and the valve closes automatically. As soon as thejaw 14 is again clamped against the intermediate 13 the end of therod 41 is pushed within thehole 20 and the air supply is automatically restored. - This automatic opening and closing system of the
valve 22 requires use of a clever device if it is desired to use thejaw 14 for clamping conventional intermediates or punches not requiring intermediates. Indeed, in this case it is necessary to avoid operation of the valve by these tools. This can be secured by providing aprojection 42 near theseal 26 and a corresponding recess (step 43 of FIG. 8a) in the intermediate with channel. This device has the effect of allowing operation of the valve by the intermediates in accordance with the present invention and of preventing operation when conventional intermediates or punches not requiring intermediates are used. Indeed, in the latter case as illustrated in FIGS. 9 and 9a theprojection 42 prevents operation of the valve by the tool on which thejaw 14 is clamped and this way the valve is always in closed position. - Naturally numerous modifications, adaptations, variants and replacements of members with others functionally equivalent can be made to the embodiments described above by way of example without going beyond the scope of the claims set forth below.
- Said variants could concern for example the
groove 21 which could be replaced or accompanied by a similar groove located on the intermediate 13 and at the level of thehole 19. In addition this groove could be missing if lateral traversing is not provided for the intermediates. Other variants could concern the cutoff valve as regards its structural features and its position not necessarily near thehole 20 or in the intermediate clamping jaw. This possibility of different position is valid in particular for the manually operated valve with independent feed of each jaw.
Claims (6)
1. Pneumatic control system for quick clamping of tools in a cornice brake in which there are rows of punches and dies and modular units consisting of intermediates, jaws for clamping the intermediates and jaws for clamping punches, with the latter being operated by actuators driven by pneumatic cylinders, characterized in that:
a) in the intermediates and the jaws clamping the intermediates to the cursor of the press there are channels for feeding of the fluid under pressure to the actuator cylinder;
b) said channels lead to at least one hole opening onto the opposing surfaces of each pair of intermediates and associated clamping jaw;
c) on at least one of the two opposing surfaces of each pair of intermediates and associated clamping jaw the associated hole opens onto a groove running horizontally in the surface and positioned at the same level as the hole opening onto the opposing surface; and
d) in the circuit for supplying the fluid under pressure to every intermediate a valve is inserted designed to intercept the flow of fluid towards the intermediate.
2. Pneumatic control system for quick clamping of tools in a cornice brake in which there are rows of punches and dies and modular units consisting of intermediates, jaws for clamping the intermediates and jaws for clamping punches, with the latter being operated by actuators driven by pneumatic cylinders, characterized in that:
a) in the intermediates and the jaws clamping the intermediates to the cursor of the press there are channels for feeding of the fluid under pressure to the actuator cylinder;
b) said channels lead to two holes mutually opposed opening onto the opposing surfaces of each pair of intermediates and associated clamping jaw; and
c) in the supply circuit for fluid under pressure toward each intermediate is inserted a valve designed to intercept the flow of fluid towards the intermediate.
3. System in accordance with claim 1 characterized in that the above mentioned groove running horizontally is surrounded by a second groove in which a seal of elastic material is seated, designed to ensure seal of the fluid under pressure when the intermediate and associated clamping jaw are clamped together.
4. System in accordance with claim 1 or 2 characterized in that the above mentioned valve is manually operated.
5. System in accordance with claim 1 or 2 characterized in that the above mentioned valve is operated automatically and is put in closing or opening condition when the jaw in which it is located is clamped to or respectively is shifted from the associated intermediate.
6. System in accordance with claim 5 characterized in that in each intermediate clamping jaw there is a projection on the surface designed to close against the intermediate, designed to be inserted upon clamping in a corresponding recess on the opposing surface of the intermediate so as to prevent opening of the above mentioned valve when the jaw is clamped against tools not having the above mentioned recess.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI2000A001083 | 2000-05-16 | ||
IT2000MI001083A IT1317545B1 (en) | 2000-05-16 | 2000-05-16 | PNEUMATIC CONTROL SYSTEM FOR RAPID CLAMPING OF TOOLS IN BENDING PRESSES |
Publications (1)
Publication Number | Publication Date |
---|---|
US20020023477A1 true US20020023477A1 (en) | 2002-02-28 |
Family
ID=11445059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/854,769 Abandoned US20020023477A1 (en) | 2000-05-16 | 2001-05-14 | Pneumatic control system for quick clamping of cornice brake tools |
Country Status (5)
Country | Link |
---|---|
US (1) | US20020023477A1 (en) |
EP (1) | EP1155757B1 (en) |
DE (1) | DE60118296T2 (en) |
ES (1) | ES2259003T3 (en) |
IT (1) | IT1317545B1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060174679A1 (en) * | 2005-02-08 | 2006-08-10 | Pabich Terry G | Press brake tool seating technology |
US20060174680A1 (en) * | 2005-02-08 | 2006-08-10 | Shimota Jon M | Push plate tool holder for press brakes |
US20060277970A1 (en) * | 2005-06-10 | 2006-12-14 | Pabich Terry G | Press brake tool incorporating seating and/or locating mechanism |
US20070006635A1 (en) * | 2005-07-11 | 2007-01-11 | Wilson Tool International, Inc. | Press brake clamp incorporating tool-seating mechanism |
US9555456B2 (en) | 2014-04-26 | 2017-01-31 | Wilson Tool International Inc. | Dynamic clamp and tool holders therefor |
US10189067B2 (en) | 2015-05-27 | 2019-01-29 | Wilson Tool International Inc. | Tool holders usable with tooling having different tang styles and/or configured with mechanically-actuated clamp assembly |
US10300518B2 (en) | 2015-05-27 | 2019-05-28 | Wilson Tool International Inc. | Tool holders usable with tooling having different tang styles and/or configured with mechanically-actuated clamp assembly |
US20220226876A1 (en) * | 2019-05-07 | 2022-07-21 | Amada Co., Ltd. | Press brake |
KR102702548B1 (en) * | 2023-12-27 | 2024-09-11 | (주) 엠에스엠 | Steel plate bending module |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT510721B1 (en) * | 2011-03-14 | 2012-06-15 | Trumpf Maschinen Austria Gmbh | TOOL POSITIONING DEVICE AT A BEND PRESS |
EP3210684B1 (en) | 2016-02-24 | 2018-10-24 | Gasparini Industries S.r.l. | Upper cross member of a press brake equipped with improved pneumatic intermediate sliding elements and related press brake equipped with said upper cross member |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3347529A1 (en) * | 1983-12-30 | 1985-07-11 | Eisen- Und Hammerwerk Gmbh, 7835 Teningen | Tool holder, in particular a tool holder for a die bending press |
IT1275562B (en) * | 1995-07-17 | 1997-08-07 | Giuseppe Vittorio Gianelli | PNEUMATIC SYSTEM FOR LOCKING / UNLOCKING THE TOOLS OF BENDING PRESSES |
IT1299274B1 (en) * | 1998-05-18 | 2000-02-29 | Abiemme Srl | FLUODYNAMIC CONTROL SYSTEM FOR LOCKING / UNLOCKING THE TOOLS OF BENDING PRESSES. |
-
2000
- 2000-05-16 IT IT2000MI001083A patent/IT1317545B1/en active
-
2001
- 2001-05-14 US US09/854,769 patent/US20020023477A1/en not_active Abandoned
- 2001-05-14 EP EP01201783A patent/EP1155757B1/en not_active Expired - Lifetime
- 2001-05-14 ES ES01201783T patent/ES2259003T3/en not_active Expired - Lifetime
- 2001-05-14 DE DE60118296T patent/DE60118296T2/en not_active Expired - Lifetime
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060174679A1 (en) * | 2005-02-08 | 2006-08-10 | Pabich Terry G | Press brake tool seating technology |
US20060174680A1 (en) * | 2005-02-08 | 2006-08-10 | Shimota Jon M | Push plate tool holder for press brakes |
US7721586B2 (en) | 2005-02-08 | 2010-05-25 | Wilson Tool International Inc. | Press brake tool seating technology |
US7308817B2 (en) | 2005-02-08 | 2007-12-18 | Wilson Tool International Inc. | Push plate tool holder for press brakes |
US20060277970A1 (en) * | 2005-06-10 | 2006-12-14 | Pabich Terry G | Press brake tool incorporating seating and/or locating mechanism |
US7669454B2 (en) | 2005-07-11 | 2010-03-02 | Wilson Tool International Inc. | Press brake tool holder incorporating tool-seating mechanism |
US7596983B2 (en) | 2005-07-11 | 2009-10-06 | Wilson Tool International Inc. | Press brake clamp incorporating tool-seating mechanism |
US20070006635A1 (en) * | 2005-07-11 | 2007-01-11 | Wilson Tool International, Inc. | Press brake clamp incorporating tool-seating mechanism |
US9555456B2 (en) | 2014-04-26 | 2017-01-31 | Wilson Tool International Inc. | Dynamic clamp and tool holders therefor |
US10189067B2 (en) | 2015-05-27 | 2019-01-29 | Wilson Tool International Inc. | Tool holders usable with tooling having different tang styles and/or configured with mechanically-actuated clamp assembly |
US10300518B2 (en) | 2015-05-27 | 2019-05-28 | Wilson Tool International Inc. | Tool holders usable with tooling having different tang styles and/or configured with mechanically-actuated clamp assembly |
US20220226876A1 (en) * | 2019-05-07 | 2022-07-21 | Amada Co., Ltd. | Press brake |
US12036599B2 (en) * | 2019-05-07 | 2024-07-16 | Amada Co., Ltd. | Press brake |
KR102702548B1 (en) * | 2023-12-27 | 2024-09-11 | (주) 엠에스엠 | Steel plate bending module |
Also Published As
Publication number | Publication date |
---|---|
EP1155757A3 (en) | 2002-10-09 |
EP1155757A2 (en) | 2001-11-21 |
ES2259003T3 (en) | 2006-09-16 |
ITMI20001083A1 (en) | 2001-11-16 |
EP1155757B1 (en) | 2006-03-29 |
DE60118296T2 (en) | 2006-08-31 |
ITMI20001083A0 (en) | 2000-05-16 |
IT1317545B1 (en) | 2003-07-09 |
DE60118296D1 (en) | 2006-05-18 |
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Legal Events
Date | Code | Title | Description |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |