CN114309268B - Sheet metal part bending forming method - Google Patents
Sheet metal part bending forming method Download PDFInfo
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- CN114309268B CN114309268B CN202111619995.6A CN202111619995A CN114309268B CN 114309268 B CN114309268 B CN 114309268B CN 202111619995 A CN202111619995 A CN 202111619995A CN 114309268 B CN114309268 B CN 114309268B
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Abstract
The invention discloses a sheet metal part bending forming method, and belongs to the technical field of sheet metal part machining. The method comprises the following main steps: A. blanking according to the unfolding size of the sheet metal part to obtain a blank; B. preliminary bending is carried out on the blank, the reinforcing plate is bent and formed, and the main plate part is bent and formed, so that a semi-finished product A is obtained; C. bending the semi-finished product A by adopting a shaping tool and a bending machine to bend and shape the main board; D. one end of the reinforcing plate is in primary spot welding connection with the main plate, and the sheet metal part is shaped, leveled, straightened and twisted; E. and encrypting welding spots for connecting the reinforcing plate and the main board to obtain a finished product. The main board and the reinforcing plate in the sheet metal part can be integrally bent and formed, so that the strength requirement on the sheet metal part is met, and the part assembly requirement is met. The shaping tool is simple in structure and low in manufacturing cost, and is beneficial to reducing the manufacturing cost of sheet metal parts.
Description
Technical Field
The invention relates to a sheet metal part bending forming method, and belongs to the technical field of sheet metal part machining.
Background
The sheet metal bending part has the characteristics of light weight, material saving, compact structure and the like, and is widely applied to various industrial departments. When sheet metal parts with various structures are processed, the situation that the parts cannot be directly bent and formed due to interference and the like is often encountered.
The structure of waiting to process panel beating part is as shown in fig. 1, and the panel beating part includes mainboard 1 and reinforcing plate 2, and reinforcing plate 2 is located the inboard of mainboard 1 to with mainboard 1 fixed connection. As shown in fig. 2, a common processing method is to bend and process the main board 1 and the reinforcing board 2 respectively, and then weld and connect both ends of the reinforcing board 2 to the main board 1 respectively.
However, the metal plate part obtained by the splice welding cannot meet the strength requirement, so the metal plate part must be integrally bent and formed, and the welding spot at which one end of the reinforcing plate 2 is connected with one end of the main plate 1 is exposed, so that the assembly requirement of the metal plate part cannot be met.
Disclosure of Invention
In order to solve the technical problems, the invention provides a sheet metal part bending forming method.
The invention is realized by the following technical scheme:
the sheet metal part bending forming method comprises a main board and a reinforcing plate, wherein the reinforcing plate and the main board are integrally bent and formed, one end of the reinforcing plate is welded with the main board, and the sheet metal part forming method comprises the following main steps:
A. blanking according to the unfolding size of the sheet metal part to obtain a blank;
B. preliminary bending is carried out on the blank, the reinforcing plate is bent and formed, and the main plate part is bent and formed, so that a semi-finished product A is obtained;
C. bending the semi-finished product A by adopting a shaping tool and a bending machine to bend and shape the main board;
D. one end of the reinforcing plate is in primary spot welding connection with the main plate, and the sheet metal part is shaped, leveled, straightened and twisted;
E. and encrypting welding spots for connecting the reinforcing plate and the main board to obtain a finished product.
The mainboard comprises an A section, a B section, a C section and a D section, wherein one end of the B section is connected with the A section, the other end of the B section is connected with the C section, the B section is vertical to the A section and the C section, one end of the D section is connected with one end, far away from the B section, of the C section, the other end extends towards the direction close to the A section, and the D section is vertical to the C section.
The reinforcing plate comprises an L-shaped section and a U-shaped section, and one end of the U-shaped section is connected with one end of the L-shaped section.
One end of the U-shaped section is connected with one end of the section A far away from the section B, the other end of the U-shaped section is vertically connected with one end of the L-shaped section, one end of the section L far away from the U-shaped section is in spot welding connection with the joint of the section C and the section D, one side of the U-shaped section is overlapped with the section A, the bottom of the U-shaped section is overlapped with the section B, and one side of the section L is overlapped with the section C.
The method for preliminary bending of the blank in the step B comprises the following main steps:
(1) Bending the blank three times by using a bending machine, and bending one end of the blank into a Z shape;
(2) Reversely overturning and bending the middle part of the blank, and overlapping the middle part of the blank;
(3) Bending the overlapped part in the step (2) for one time to bend and shape the reinforcing plate;
(4) And bending one end of the blank far away from the reinforcing plate once to obtain a semi-finished product A.
The shaping tool in the step C comprises a base, a shaping block A and a shaping block B, wherein a square groove is formed in the middle of the base, the shaping block B and the shaping block A are arranged on the inner side of the square groove side by side, two ends of the shaping block B and two ends of the shaping block A are detachably connected with the base through fasteners respectively, an L-shaped avoidance notch A is formed in the top of one side of the square groove on the base, and an L-shaped avoidance notch B is formed in the position, corresponding to the L-shaped avoidance notch A, of the top of the shaping block A.
Screw holes are formed in two ends of the forming block A and the forming block B, and through holes are formed in positions, corresponding to the screw holes, of the base; the fastener is a screw.
The molded surface on one side of the forming block A is matched with the shape and the size of the reinforcing plate; the width and height dimensions of the forming block B are consistent with those of a rectangle surrounded by the reinforcing plate and the main plate in the sheet metal part.
The method for bending the semi-finished product A by adopting the shaping tool to cooperate with the bending machine in the step C comprises the following main steps:
a. attaching the molded surface on one side of the molding block A to the reinforcing plate in the semi-finished product A, and then placing the molding block A and the semi-finished product A into a square groove together;
b. the forming block B is placed into a U-shaped groove on the left side of the reinforcing plate, and then the forming block A and the forming block B are locked and fixed by using screws;
c. and (3) flanging by using a wooden hammer, and flattening the part, extending out of the square groove, of the semi-finished product A by matching with a bending machine, so that the main board is bent and formed.
In the step a, after the forming block A and the semi-finished product A are put into a square groove together, the forming block A and the semi-finished product A are pressed down simultaneously, so that the forming block A and the semi-finished product A are attached to the bottom surface of the square groove; in the step B, the top surface of the forming block B is adjusted to coincide with the top surface of the reinforcing plate, and then the forming block A and the forming block B are locked and fixed.
The invention has the beneficial effects that: the main board and the reinforcing plate in the sheet metal part can be integrally bent and formed, so that the strength requirement on the sheet metal part is met, and the part assembly requirement is met. The shaping tool is simple in structure and low in manufacturing cost, and is beneficial to reducing the manufacturing cost of sheet metal parts.
Drawings
FIG. 1 is a schematic view of a sheet metal part of the present invention;
FIG. 2 is a general method of processing sheet metal parts of the present invention;
FIG. 3 is a flow chart of the present invention for processing a blank into a semi-finished product A;
fig. 4 is a schematic diagram of an assembly structure of the shaping tool and the semi-finished product a of the present invention.
In the figure: 1-main board, 10-A section, 11-B section, 12-C section, 13-D section, 2-reinforcing plate, 20-L section, 21-U section, 3-base, 4-forming block A, 5-forming block B.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the above.
As shown in fig. 1, 3 and 4, the sheet metal part bending forming method of the present invention includes a main board 1 and a reinforcing board 2, the reinforcing board 2 and the main board 1 are integrally bent and formed, one end of the reinforcing board 2 is welded with the main board 1, and the sheet metal part forming method includes the following main steps:
A. blanking according to the unfolding size of the sheet metal part to obtain a blank;
B. preliminary bending is carried out on the blank, the reinforcing plate 2 is bent and formed, and the main plate 1 is partially bent and formed, so that a semi-finished product A is obtained;
C. bending the semi-finished product A by adopting a shaping tool and a bending machine to bend and shape the main board 1;
D. one end of the reinforcing plate 2 is in preliminary spot welding connection with the main plate 1, and the sheet metal part is shaped, leveled, straightened and twisted;
E. and encrypting welding spots for connecting the reinforcing plate 2 and the main plate 1 to obtain a finished product. When in use, the welding spots are uniformly distributed, and the distance between the welding spots is 50-70 mm.
The main board 1 comprises an A section 10, a B section 11, a C section 12 and a D section 13, wherein one end of the B section 11 is connected with the A section 10, the other end is connected with the C section 12, the B section 11 is vertical to the A section 10 and the C section 12, one end of the D section 13 is connected with one end, far away from the B section 11, of the C section 12, the other end extends towards the direction close to the A section 10, and the D section 13 is vertical to the C section 12.
The reinforcing plate 2 includes an L-shaped section 20 and a U-shaped section 21, and one end of the U-shaped section 21 is connected to one end of the L-shaped section 20.
One end of the U-shaped section 21 is connected with one end of the A section 10 far away from the B section 11, the other end of the U-shaped section is vertically connected with one end of the L-shaped section 20, the connecting part of the L-shaped section 20 far away from the U-shaped section 21 and the C section 12 and the D section 13 is in spot welding connection, one side of the U-shaped section 21 is overlapped with the A section 10, the bottom of the U-shaped section is overlapped with the B section 11, and one side of the L-shaped section 20 is overlapped with the C section 12.
The method for preliminary bending of the blank in the step B comprises the following main steps:
(1) Bending the blank three times by using a bending machine, and bending one end of the blank into a Z shape; as shown in figure 3, figure (2).
(2) Reversely overturning and bending the middle part of the blank, and overlapping the middle part of the blank; as shown in figure 3 (3).
(3) Bending the overlapped part in the step (2) for one time to bend and shape the reinforcing plate 2; as shown in figure 3, panel (4).
(4) And bending one end of the blank far away from the reinforcing plate 2 once to obtain a semi-finished product A. As shown in figure 3, panel (5).
The shaping tool in the step C comprises a base 3, a shaping block A4 and a shaping block B5, wherein a square groove is formed in the middle of the base 3, the shaping block B5 and the shaping block A4 are arranged on the inner side of the square groove side by side, two ends of the shaping block B5 and the shaping block A4 are detachably connected with the base 3 through fasteners respectively, an L-shaped avoidance groove A is formed in the top of one side of the square groove on the base 3, and an L-shaped avoidance groove B is formed in the position of the top of the shaping block A4 corresponding to the L-shaped avoidance groove A. As shown in fig. 4, one side of the L-shaped escape slot B is coplanar with one of the end surfaces of the semi-finished product a. The L-shaped avoidance notch A and the L-shaped avoidance notch B are arranged, so that interference between the part, extending out of the square groove, of the semi-finished product A and the base 3 and the forming block A4 in the overturning process is avoided.
Screw holes are formed in two ends of the forming block A4 and the forming block B5, and through holes are formed in positions corresponding to the screw holes in the base 3; the fastener is a screw.
The molded surface of one side of the molding block A4 is matched with the shape and the size of the reinforcing plate 2; the width and height dimensions of the forming block B5 are consistent with those of the rectangle surrounded by the reinforcing plate 2 and the main plate 1 in the sheet metal part.
The method for bending the semi-finished product A by adopting the shaping tool to cooperate with the bending machine in the step C comprises the following main steps:
a. attaching the molded surface on one side of the molding block A4 to the reinforcing plate 2 in the semi-finished product A, and then placing the molding block A4 and the semi-finished product A together into a square groove;
b. the forming block B5 is placed into a U-shaped groove on the left side of the reinforcing plate 2, and then the forming block A4 and the forming block B5 are locked and fixed by using screws;
c. and (3) flanging by using a wooden hammer, and flattening the part, extending out of the square groove, of the semi-finished product A by matching with a bending machine, so that the main board 1 is bent and formed.
In the step a, after the forming block A4 and the semi-finished product A are put into a square groove together, the forming block A4 and the semi-finished product A are pressed down simultaneously, so that the forming block A4 and the semi-finished product A are attached to the bottom surface of the square groove; in the step B, the top surface of the forming block B5 is adjusted to coincide with the top surface of the reinforcing plate 2, and then the forming block A4 and the forming block B5 are locked and fixed.
The sheet metal part bending forming method provided by the invention enables the main board 1 and the reinforcing board 2 in the sheet metal part to be integrally bent and formed, thereby meeting the strength requirement of the sheet metal part and meeting the part assembly requirement. The shaping tool is simple in structure and low in manufacturing cost, and is beneficial to reducing the manufacturing cost of sheet metal parts.
Claims (6)
1. A sheet metal part bending forming method is characterized in that: the sheet metal part comprises a main board (1) and a reinforcing plate (2), wherein the reinforcing plate (2) and the main board (1) are integrally bent and formed, and one end of the reinforcing plate (2) is welded with the main board (1); the forming method of the sheet metal part comprises the following main steps:
A. blanking according to the unfolding size of the sheet metal part to obtain a blank;
B. preliminary bending is carried out on the blank, the reinforcing plate (2) is bent and formed, and the main plate (1) is partially bent and formed, so that a semi-finished product A is obtained;
C. bending the semi-finished product A by adopting a shaping tool and a bending machine to bend and shape the main board (1);
D. one end of the reinforcing plate (2) is in preliminary spot welding connection with the main plate (1), and the sheet metal part is shaped, leveled, straightened and twisted;
E. the welding spots used for connecting the reinforcing plate (2) and the main plate (1) are encrypted, so that a finished product is obtained;
the main board (1) comprises an A section (10), a B section (11), a C section (12) and a D section (13), wherein one end of the B section (11) is connected with the A section (10), the other end of the B section is connected with the C section (12), the B section (11) is perpendicular to the A section (10) and the C section (12), one end of the D section (13) is connected with one end, far away from the B section (11), of the C section (12), the other end extends towards the direction close to the A section (10), and the D section (13) is perpendicular to the C section (12);
the reinforcing plate (2) comprises an L-shaped section (20) and a U-shaped section (21), and one end of the U-shaped section (21) is connected with one end of the L-shaped section (20);
one end of the U-shaped section (21) is connected with one end, far away from the B section (11), of the A section (10), the other end of the U-shaped section is vertically connected with one end of the L-shaped section (20), and one end, far away from the U-shaped section (21), of the L-shaped section (20) is in spot welding connection with the joint of the C section (12) and the D section (13); one side of the U-shaped section (21) is overlapped with the section A (10), the bottom is overlapped with the section B (11), and one side of the L-shaped section (20) is overlapped with the section C (12);
the shaping tool in the step C comprises a base (3), a shaping block A (4) and a shaping block B (5), wherein a square groove is formed in the middle of the base (3), the shaping block B (5) and the shaping block A (4) are arranged on the inner side of the square groove side by side, two ends of the shaping block B (5) and two ends of the shaping block A (4) are respectively detachably connected with the base (3) through fasteners, an L-shaped avoidance notch A is formed in the top of one side of the square groove on the base (3), and an L-shaped avoidance notch B is formed in the position, corresponding to the L-shaped avoidance notch A, of the top of the shaping block A (4).
2. The sheet metal part bending forming method as claimed in claim 1, wherein: the method for preliminary bending of the blank in the step B comprises the following main steps:
(1) Bending the blank three times by using a bending machine, and bending one end of the blank into a Z shape;
(2) Reversely overturning and bending the middle part of the blank, and overlapping the middle part of the blank;
(3) Bending the overlapped part in the step (2) for one time to bend and shape the reinforcing plate (2);
(4) And bending one end of the blank far away from the reinforcing plate (2) for one time to obtain a semi-finished product A.
3. The sheet metal part bending forming method as claimed in claim 1, wherein: screw holes are formed in two ends of the forming block A (4) and the forming block B (5), and through holes are formed in positions, corresponding to the screw holes, of the base (3); the fastener is a screw.
4. The sheet metal part bending forming method as claimed in claim 1, wherein: the molded surface of one side of the molding block A (4) is matched with the shape and the size of the reinforcing plate (2); the width and height dimensions of the forming block B (5) are consistent with those of a rectangle surrounded by the reinforcing plate (2) and the main plate (1) in the sheet metal part.
5. The sheet metal part bending forming method as claimed in claim 3, wherein: the method for bending the semi-finished product A by adopting the shaping tool to cooperate with the bending machine in the step C comprises the following main steps:
a. attaching the molded surface on one side of the molding block A (4) to the reinforcing plate (2) in the semi-finished product A, and then placing the molding block A (4) and the semi-finished product A into a square groove;
b. the forming block B (5) is placed into a U-shaped groove at the left side of the reinforcing plate (2), and then the forming block A (4) and the forming block B (5) are locked and fixed by using screws;
c. and (3) flanging by using a wooden hammer, and flattening the part, extending out of the square groove, of the semi-finished product A by matching with a bending machine, so that the main board (1) is bent and formed.
6. The sheet metal part bending forming method as claimed in claim 5, wherein: in the step a, after the forming block A (4) and the semi-finished product A are put into a square groove together, the forming block A (4) and the semi-finished product A are pressed down simultaneously, so that the forming block A (4) and the semi-finished product A are attached to the bottom surface of the square groove; in the step B, after the top surface of the forming block B (5) is adjusted to coincide with the top surface of the reinforcing plate (2), the forming block A (4) and the forming block B (5) are locked and fixed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111619995.6A CN114309268B (en) | 2021-12-27 | 2021-12-27 | Sheet metal part bending forming method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111619995.6A CN114309268B (en) | 2021-12-27 | 2021-12-27 | Sheet metal part bending forming method |
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| CN114309268A CN114309268A (en) | 2022-04-12 |
| CN114309268B true CN114309268B (en) | 2023-09-26 |
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| CN202111619995.6A Active CN114309268B (en) | 2021-12-27 | 2021-12-27 | Sheet metal part bending forming method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115288569A (en) * | 2022-07-28 | 2022-11-04 | 白朝文 | Section bar for door and window and forming method thereof |
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| JP2002361324A (en) * | 2001-06-08 | 2002-12-17 | Mitsubishi Motors Corp | Bend-forming method and bend-formed product formed using the same |
| JP2011104603A (en) * | 2009-11-13 | 2011-06-02 | Fuji World:Kk | Structural member for vehicle and method for manufacturing the same |
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| CN103402665A (en) * | 2011-03-03 | 2013-11-20 | 新日铁住金株式会社 | Method for bending sheet metal and product of sheet metal |
| CN104070087A (en) * | 2014-06-13 | 2014-10-01 | 上海优摩科技有限公司 | Scheduling method of metal plate bending steps based on work stations |
| CN104138938A (en) * | 2013-09-26 | 2014-11-12 | 国家电网公司 | Spread length parameter determination method and production method for sheet metal part adopting double edge bending |
| CN107649550A (en) * | 2016-07-25 | 2018-02-02 | 潘素云 | Simple metal bender |
| CN108115008A (en) * | 2016-11-28 | 2018-06-05 | 苏州慧博精密钣金有限公司 | Folding kills side technique |
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2021
- 2021-12-27 CN CN202111619995.6A patent/CN114309268B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002361324A (en) * | 2001-06-08 | 2002-12-17 | Mitsubishi Motors Corp | Bend-forming method and bend-formed product formed using the same |
| JP2011104603A (en) * | 2009-11-13 | 2011-06-02 | Fuji World:Kk | Structural member for vehicle and method for manufacturing the same |
| CN103402665A (en) * | 2011-03-03 | 2013-11-20 | 新日铁住金株式会社 | Method for bending sheet metal and product of sheet metal |
| CN102962359A (en) * | 2012-11-29 | 2013-03-13 | 永济新时速电机电器有限责任公司 | Bending mold for enclosed sheet metal parts |
| CN104138938A (en) * | 2013-09-26 | 2014-11-12 | 国家电网公司 | Spread length parameter determination method and production method for sheet metal part adopting double edge bending |
| CN104070087A (en) * | 2014-06-13 | 2014-10-01 | 上海优摩科技有限公司 | Scheduling method of metal plate bending steps based on work stations |
| CN107649550A (en) * | 2016-07-25 | 2018-02-02 | 潘素云 | Simple metal bender |
| CN108115008A (en) * | 2016-11-28 | 2018-06-05 | 苏州慧博精密钣金有限公司 | Folding kills side technique |
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