CA2359341A1 - A procedure for bending a profiled metal element while limiting deformation of its cross-sectional shape - Google Patents
A procedure for bending a profiled metal element while limiting deformation of its cross-sectional shape Download PDFInfo
- Publication number
- CA2359341A1 CA2359341A1 CA002359341A CA2359341A CA2359341A1 CA 2359341 A1 CA2359341 A1 CA 2359341A1 CA 002359341 A CA002359341 A CA 002359341A CA 2359341 A CA2359341 A CA 2359341A CA 2359341 A1 CA2359341 A1 CA 2359341A1
- Authority
- CA
- Canada
- Prior art keywords
- bending
- procedure
- metal element
- cross
- profiled metal
- 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
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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming 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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/03—Apparatus with means to keep the profile in shape
Abstract
The bending procedure calls for a restraining force to be exerted on the profiled metal element (10) in a direction substantially orthogonal to that of the forces causing the bend, at the same time as the said forces are being exerted, in order to limit any deformation of the cross-sectional shape of t he element (10). The associated apparatus includes means for exerting on the elemnt (10) a restraining force in a direction substantially orthogonal to that of the forces causing the bending.
Description
A PROCEDURE FOR BENDING A PROFILED METAL ELEMENT WHILE LIMITING DEFORMATION OF
ITS
CROSS-SECTIONAL SHAPE
The present invention relates to a procedure for bending a profiled metal element in one or more dimensions and associated apparatus.
The object of the invention is to provide a procedure of the above type whereby bending a profiled metal element, notably by drawing, does not carry the side effect of deforming the cross-sectional shape thereof.
This object is achieved thanks to a bending procedure characterised in that it exerts a restraining force on the said profiled metal element in a direction substantially orthogonal to that of the forces causing the bend, at the time that they are acting.
This restraining force counters the tendency of the cross section of the element to become deformed, thus ensuring that it retains its original shape.
Profile elements of an open or partially closed type are suited to the procedure of the invention.
A further object of the invention comprises apparatus for carrying out the aforesaid procedure, including means for exerting on the element to be bent a restraining force in a direction substantially orthogonal to that of the forces causing the bend.
Additional advantages and characteristics of the present invention will become clear from the detailed description which follows, with reference to the appended drawings, provided purely by way of non-limititative example, in which:
Figure 1 is a perspective view of a profiled metal element to be bent by the procedure of the invention, and Figure 2 is a view in section, taken on the line II-II of Figure 1, of the profiled element arranged on apparatus operable to carry out the procedure of the invention.
An elongate profiled metal element 10, having a W-shape in cross section (see Figure 1) is to be bent in several dimensions as shown by the arrows 14.
In order to carry out this bending procedure, apparatus is used which is known per se in the art and is only schematically illustrated in figure 2, and includes a template 16 having the shape to be imparted to the metal element and a series of dies 18 operated by respective actuators 20 able to press the element 10 against the template 16.
The surfaces of the template 16 and of the dies 18 intended to come into contact with the element 10 match the shape of the latter in order to provide adequate support during the bending procedure.
ITS
CROSS-SECTIONAL SHAPE
The present invention relates to a procedure for bending a profiled metal element in one or more dimensions and associated apparatus.
The object of the invention is to provide a procedure of the above type whereby bending a profiled metal element, notably by drawing, does not carry the side effect of deforming the cross-sectional shape thereof.
This object is achieved thanks to a bending procedure characterised in that it exerts a restraining force on the said profiled metal element in a direction substantially orthogonal to that of the forces causing the bend, at the time that they are acting.
This restraining force counters the tendency of the cross section of the element to become deformed, thus ensuring that it retains its original shape.
Profile elements of an open or partially closed type are suited to the procedure of the invention.
A further object of the invention comprises apparatus for carrying out the aforesaid procedure, including means for exerting on the element to be bent a restraining force in a direction substantially orthogonal to that of the forces causing the bend.
Additional advantages and characteristics of the present invention will become clear from the detailed description which follows, with reference to the appended drawings, provided purely by way of non-limititative example, in which:
Figure 1 is a perspective view of a profiled metal element to be bent by the procedure of the invention, and Figure 2 is a view in section, taken on the line II-II of Figure 1, of the profiled element arranged on apparatus operable to carry out the procedure of the invention.
An elongate profiled metal element 10, having a W-shape in cross section (see Figure 1) is to be bent in several dimensions as shown by the arrows 14.
In order to carry out this bending procedure, apparatus is used which is known per se in the art and is only schematically illustrated in figure 2, and includes a template 16 having the shape to be imparted to the metal element and a series of dies 18 operated by respective actuators 20 able to press the element 10 against the template 16.
The surfaces of the template 16 and of the dies 18 intended to come into contact with the element 10 match the shape of the latter in order to provide adequate support during the bending procedure.
The apparatus also includes means for exerting a restraining force on the element 10 in a direction substantially orthogonal to that of the forces causing the bend by drawing.
These restraining means comprise pincers 22 located in recesses 24 formed along both sides of the template 16 and having jaws 26 able to grip the transverse edge regions of the element 10.
The jaws 26 of the pincers 22 are operated by respective actuators 28, which may be mechanically, pneumatically hydraulically or electrically operated.
In embodiments of the invention, not illustrated, the pincers can be replaced by vices, operated by mechanical lever systems instead of actuators.
In order to carry out the bending procedure, the jaws 26 of the pincers 22 hold the edge regions of the element 10 against the template 16 so that the forces exerted by the dies 18 produce the required bend by drawing the element 10 without deforming its cross-sectional shape.
In dependence on the shape of the element 10 and on the bending forces exerted on it, it is possible to provide a specific number of pincers 22 and/or a particular layout thereof, such that the cross section of the profiled element remains unchanged during the entire procedure.
Naturally, the principle of the invention remaining the same, manufacturing details and embodiments may vary widely from those described and illustrated here purely by way of non-limitative example, without departing thereby from the scope of the invention.
For example, the bending of the profiled element can take place also only in one dimension, the longitudinal axis of the element remaining in the plane wherein it was originally.
These restraining means comprise pincers 22 located in recesses 24 formed along both sides of the template 16 and having jaws 26 able to grip the transverse edge regions of the element 10.
The jaws 26 of the pincers 22 are operated by respective actuators 28, which may be mechanically, pneumatically hydraulically or electrically operated.
In embodiments of the invention, not illustrated, the pincers can be replaced by vices, operated by mechanical lever systems instead of actuators.
In order to carry out the bending procedure, the jaws 26 of the pincers 22 hold the edge regions of the element 10 against the template 16 so that the forces exerted by the dies 18 produce the required bend by drawing the element 10 without deforming its cross-sectional shape.
In dependence on the shape of the element 10 and on the bending forces exerted on it, it is possible to provide a specific number of pincers 22 and/or a particular layout thereof, such that the cross section of the profiled element remains unchanged during the entire procedure.
Naturally, the principle of the invention remaining the same, manufacturing details and embodiments may vary widely from those described and illustrated here purely by way of non-limitative example, without departing thereby from the scope of the invention.
For example, the bending of the profiled element can take place also only in one dimension, the longitudinal axis of the element remaining in the plane wherein it was originally.
Claims (4)
1. A procedure for bending a profiled metal element (10) in one or more dimensions, characterised in that it provides for a restraining force to be exerted on the said element (10) in a direction substantially orthogonal to that of the forces causing the bend and at the same time as the bending forces are acting, in order to limit any deformation of the cross-sectional shape of the element (10).
2. Apparatus for bending a profiled metal element (10) in one or more dimensions, characterised in that it includes means for exerting a restraining force on the said element (10) along a direction substantially orthogonal to that of the forces determining the bend.
3. Apparatus according to the preceding claim, characterised in that the said restraining means are mechanically, pneumatically, hydraulically or electrically operated.
4. Apparatus according to Claim 2 or Claim 3, characterised in that the said restraining means comprise pincers (22) and/or vices, located along both sides of the element (10) and having jaws (26) able to grip the transverse edge regions of the element (10).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITTO990034 IT1306993B1 (en) | 1999-01-18 | 1999-01-18 | PROCEDURE FOR CURVING A METAL PROFILE ELEMENT CONTAINING THE DEFORMATIONS OF ITS SECTION AND RELATED |
| ITTO99A000034 | 1999-01-18 | ||
| PCT/EP2000/000208 WO2000041825A1 (en) | 1999-01-18 | 2000-01-13 | A procedure for bending a profiled metal element while limiting deformation of its cross-sectional shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2359341A1 true CA2359341A1 (en) | 2000-07-20 |
Family
ID=11417355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002359341A Abandoned CA2359341A1 (en) | 1999-01-18 | 2000-01-13 | A procedure for bending a profiled metal element while limiting deformation of its cross-sectional shape |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP1154869A1 (en) |
| JP (1) | JP2002534270A (en) |
| CN (1) | CN1336854A (en) |
| AU (1) | AU2108400A (en) |
| BR (1) | BR0008894A (en) |
| CA (1) | CA2359341A1 (en) |
| CZ (1) | CZ20012619A3 (en) |
| IT (1) | IT1306993B1 (en) |
| MX (1) | MXPA01007258A (en) |
| PL (1) | PL348894A1 (en) |
| RU (1) | RU2001123238A (en) |
| SK (1) | SK10162001A3 (en) |
| WO (1) | WO2000041825A1 (en) |
| YU (1) | YU48601A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588458B (en) * | 2014-12-26 | 2017-02-22 | 西安轨道交通装备有限责任公司 | Method for manufacturing swash plate of oil tank truck in pressing mode |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1721964A (en) * | 1926-08-26 | 1929-07-23 | George R Mcalfenan | Method of and apparatus for bending structural shapes |
| GB982694A (en) * | 1961-05-19 | 1965-02-10 | Reynolds Metals Co | Method and apparatus for producing automotive vehicle bumpers |
| DE1527336A1 (en) * | 1965-09-21 | 1969-04-24 | Hamburger Flugzeugbau Gmbh | Universal pressing tool |
| JPS4623729Y1 (en) * | 1968-04-19 | 1971-08-16 | ||
| AT334160B (en) * | 1973-09-07 | 1976-01-10 | Paweck Ag | TOOL FOR BENDING WORK PIECES, SUCH AS TUBES AND PROFILE BAR |
| JPS57137029A (en) * | 1981-02-19 | 1982-08-24 | Sanwa Koki Kk | Working device for press machine |
| JP3035025B2 (en) * | 1991-08-30 | 2000-04-17 | 不二サッシ株式会社 | Section bending machine |
-
1999
- 1999-01-18 IT ITTO990034 patent/IT1306993B1/en active
-
2000
- 2000-01-13 BR BR0008894-3A patent/BR0008894A/en not_active Application Discontinuation
- 2000-01-13 CA CA002359341A patent/CA2359341A1/en not_active Abandoned
- 2000-01-13 CZ CZ20012619A patent/CZ20012619A3/en unknown
- 2000-01-13 MX MXPA01007258A patent/MXPA01007258A/en unknown
- 2000-01-13 AU AU21084/00A patent/AU2108400A/en not_active Abandoned
- 2000-01-13 SK SK1016-2001A patent/SK10162001A3/en unknown
- 2000-01-13 EP EP00901098A patent/EP1154869A1/en not_active Withdrawn
- 2000-01-13 CN CN 00802861 patent/CN1336854A/en active Pending
- 2000-01-13 RU RU2001123238/02A patent/RU2001123238A/en not_active Application Discontinuation
- 2000-01-13 YU YU48601A patent/YU48601A/en unknown
- 2000-01-13 JP JP2000593426A patent/JP2002534270A/en active Pending
- 2000-01-13 WO PCT/EP2000/000208 patent/WO2000041825A1/en not_active Application Discontinuation
- 2000-01-13 PL PL00348894A patent/PL348894A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| CZ20012619A3 (en) | 2002-02-13 |
| MXPA01007258A (en) | 2003-06-06 |
| CN1336854A (en) | 2002-02-20 |
| JP2002534270A (en) | 2002-10-15 |
| EP1154869A1 (en) | 2001-11-21 |
| ITTO990034A1 (en) | 2000-07-18 |
| YU48601A (en) | 2003-12-31 |
| PL348894A1 (en) | 2002-06-17 |
| RU2001123238A (en) | 2003-08-10 |
| BR0008894A (en) | 2001-10-30 |
| SK10162001A3 (en) | 2001-12-03 |
| WO2000041825A1 (en) | 2000-07-20 |
| AU2108400A (en) | 2000-08-01 |
| IT1306993B1 (en) | 2001-10-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |