CN212370977U - Bending punch forming module - Google Patents
Bending punch forming module Download PDFInfo
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- CN212370977U CN212370977U CN202020244103.3U CN202020244103U CN212370977U CN 212370977 U CN212370977 U CN 212370977U CN 202020244103 U CN202020244103 U CN 202020244103U CN 212370977 U CN212370977 U CN 212370977U
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Abstract
The utility model discloses a stamping forming module of bending, stamping forming module of bending is including the mould and the first plastic mould of bending, and the mould of bending is equipped with the protruding flex point of bending, and first plastic mould is equipped with the protruding flex point of plastic, can bend in the work piece and the plastic in the interior angle of bending that forms obtuse angle structure, with the work piece in bend with the plastic in form the interior angle of obtuse angle formula of bending to reduce the resilience of the plastic process of bending, improve dimensional stability, improve the quality qualification rate.
Description
Technical Field
The utility model relates to a punching press technical field, in particular to stamping forming module bends.
Background
The angle of bending of the existing bending and shaping die is of an arc-shaped structure, corresponding arc-shaped angles of bending are formed in the workpiece bending and shaping processes, the arc-shaped angles of bending are easy to form, but the problem of large resilience exists, the size is unstable, and the product quality is greatly influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stamping forming module of bending, the face of bending of the mould of bending is equipped with the obtuse angle formula convex inflection point of bending, the whole face of first plastic mould is equipped with the obtuse angle formula convex inflection point of bending, the interior angle of bending that has the obtuse angle formula when making the work piece bend and the plastic, do benefit to the reduction resilience of bending, thereby improve dimensional stability, improve the quality qualification rate, optimize the plastic forming technology of bending, the interior angle of the angle of bending when having solved bending of current plastic forming technology and shaping is circular arc type structure, lead to the work piece to kick-back easily, influence dimensional stability's problem.
To achieve the purpose, the utility model adopts the following technical proposal:
the bending punch forming module comprises a bending die and a first shaping die, wherein the bending die comprises an upper bending die and a lower bending die;
a pause angle type upper bending convex inflection point is arranged at the joint of the bending surface of the upper bending die;
a blunt angle type lower bending convex inflection point is arranged at the joint of the bending surface of the lower bending die;
the first shaping die comprises a first shaping upper die and a first shaping lower die;
a blunt angle type upper shaping convex inflection point is arranged at the joint of the shaping surface of the first shaping upper die;
and a blunt angle type lower shaping convex inflection point is arranged at the joint of the shaping surface of the first shaping lower die.
Therefore, when a workpiece is bent, because the upper bending die and the lower bending die are both provided with the obtuse-angle-type upper bending convex inflection point and the obtuse-angle-type lower bending convex inflection point, the inner angle of the bending angle of the workpiece can form an obtuse-angle structure, when the workpiece is shaped, because the first shaping upper die and the first shaping lower die are both provided with the obtuse-angle-type upper shaping convex inflection point and the obtuse-angle-type lower shaping convex inflection point, the inner angle of the bending angle of the workpiece can keep the obtuse-angle structure in the shaping process, in the two processes of bending and shaping, the inner angle of the bending angle of the workpiece is of a blunt-angle structure, compared with the inner angle of a circular-arc structure, the stability and the precision of the workpiece forming size can be improved, the rebound of the workpiece is reduced, and the problems that the inner angle of the bending angle of the existing bending forming process and the bending angle during forming.
In some embodiments, a circular arc type upper bending concave inflection point is further arranged at the joint of the bending surface of the bending upper die;
the joint of the bending surface of the lower bending die is also provided with an arc-shaped lower bending concave inflection point;
the joint of the shaping surface of the first shaping upper die is also provided with an arc-shaped upper shaping concave inflection point;
and a circular arc type lower shaping concave inflection point is also arranged at the joint of the shaping surface of the first shaping lower die.
Therefore, the upper bending concave inflection point and the lower bending concave inflection point of the upper bending die and the lower bending die can enable the outer angle of the bending angle of the workpiece to form an arc structure, and enable the outer angle and the inner angle of the bending angle to form an arc structure and an obtuse angle structure to be matched, so that the influence of the bending process of the workpiece is small, the dimensional stability of the workpiece after being bent can be improved, and the springback is reduced; when the workpiece is shaped, an arc-shaped upper shaping concave inflection point and an arc-shaped lower shaping concave inflection point are also arranged, so that the bending angle of the workpiece is kept in an arc shape at the outer angle and an obtuse angle at the inner angle, and the rebound of the workpiece is reduced.
In some embodiments, the bending upper die comprises an upper first bending surface, an upper second bending surface, and an upper third bending surface;
an upper bending convex inflection point is formed at the joint of the upper first bending surface and the upper second bending surface; an upper bending concave inflection point is formed at the joint of the upper second bending surface and the upper third bending surface;
the lower bending die comprises a lower first bending surface, a lower second bending surface and a lower third bending surface;
a lower bending concave inflection point is formed at the joint of the lower first bending surface and the lower second bending surface;
and a lower bending convex inflection point is formed at the joint of the lower second bending surface and the lower third bending surface.
Therefore, the upper bending die and the lower bending die are provided with three bending surfaces to form a Z-shaped structure.
Further, the upper second bending surface is an inclined surface, and the upper first bending surface and the upper third bending surface are arranged in parallel.
Further, the lower second bending surface is an inclined surface, and the lower first bending surface and the lower third bending surface are arranged in parallel.
In some embodiments, the first over-shaping mold comprises an upper first shaping face, an upper second shaping face, and an upper third shaping face;
an upper shaping convex inflection point is formed at the joint of the upper first shaping surface and the upper second shaping surface;
an upper shaping concave inflection point is formed at the joint of the upper second shaping surface and the upper third shaping surface;
the first shaping lower die comprises a lower first shaping surface, a lower second shaping surface and a lower third shaping surface;
a lower shaping concave inflection point is formed at the joint of the lower first shaping surface and the lower second shaping surface;
and a lower shaping convex inflection point is formed at the joint of the lower second shaping surface and the lower third shaping surface.
Therefore, the first shaping upper die and the first shaping lower die are provided with three shaping surfaces to form a Z-shaped structure.
In some embodiments, the upper third shaping surface is disposed in an obliquely upwardly extending arrangement and the lower third shaping surface is disposed in an obliquely upwardly extending arrangement.
Therefore, the inclined arrangement of the upper third shaping surface and the lower third shaping surface is beneficial to shaping the workpiece by stages, so that the precision and the dimensional stability of the workpiece are improved.
In some embodiments, the angle of inclination of the upper third shaping surface is between 0.5 and 1.5 degrees. The inclination angle of the lower third shaping surface is between 0.5 and 1.5 degrees.
In some embodiments, the die set further comprises a second shaping die comprising a second shaping upper die and a second shaping lower die.
Therefore, the second shaping die is used for shaping the workpiece for the second time, so that the final shape and size are formed, shaping is performed twice, the shaping precision is improved, resilience is reduced, and the size stability is improved.
In some embodiments, the second shaping die further comprises a proof mass that abuts the upper surface of the workpiece.
Therefore, the correcting block is used for correcting the bending degree of the workpiece and improving the size precision of the workpiece.
In some embodiments, the joints of the shaping surfaces of the second shaping upper die are all arc-shaped joints; the joints of the shaping surfaces of the second shaping lower die are all connected in an arc shape.
Therefore, the shaping surfaces of the second shaping upper die and the second shaping lower die are formed by three surfaces, and the joints of the surfaces are connected in an arc manner, so that the inner angle and the outer angle of the angle of bending after the secondary shaping of the workpiece are both in an arc structure, and the strength of the angle of bending is improved.
The utility model has the advantages that: the bending surface of the bending die is provided with an obtuse-angle type bending convex inflection point, and the shaping surface of the first shaping die is provided with an obtuse-angle type bending convex inflection point, so that a workpiece has an obtuse-angle type bending inner angle during bending and shaping, bending resilience is reduced, dimensional stability is improved, quality qualification rate is improved, and a bending shaping forming process is optimized;
the bending die is also provided with an arc-shaped bending concave inflection point, the first shaping die is also provided with an arc-shaped shaping concave inflection point, and the arc-shaped concave inflection point is matched with the obtuse-angle-shaped convex inflection point, so that the outer angle of the bending angle is of an arc structure, the inner angle is of an obtuse-angle structure, and the rebound of a workpiece is reduced while the bending process is not influenced;
furthermore, the connecting parts of the shaping surfaces of the second shaping die are all arc-shaped, so that the inner and outer angles of the bending angle of the workpiece are all arc-shaped structures, and the strength of the bending angle of the workpiece is not weakened; therefore, the bent inner angle of the workpiece forms an obtuse angle structure firstly and then returns to an arc structure, so that the resilience is reduced, the dimensional stability is improved, and the bending process is improved.
Drawings
Fig. 1 is a structural diagram of a bending die of a bending punch forming module according to an embodiment of the present invention;
fig. 2 is a structural diagram of a first shaping mold of the bending punch forming module according to an embodiment of the present invention;
fig. 3 is a structural diagram of a second shaping mold of the bending punch forming module according to an embodiment of the present invention;
fig. 4 is a bending and stamping flowchart of a bending and stamping forming module according to an embodiment of the present invention;
fig. 5 is a deformation flow chart of a workpiece bending, stamping and shaping process of the bending punch forming module according to an embodiment of the present invention;
wherein: 1-bending a mould; 11-bending the upper die; 111-bending convex inflection points upwards; 112-bending concave inflection points upwards; 11 a-an upper first bending plane; 11 b-upper second bending surface; 11 c-a third bending surface is arranged; 12-bending the lower die; 121-lower bending convex inflection point; 122-lower bending concave inflection point; 12 a-a lower first bending plane; 12 b-lower second bending surface; 12 c-setting a third bending surface;
2-a first shaping mould; 21-a first shaping upper die; 211-reshaping convex inflection points up; 212-upper shaping concave inflection point; 21 a-an upper first shaping surface; 21 b-an upper second shaping surface; 21 c-an upper third shaping surface; 22-first shaping lower die; 221-lower shaping convex inflection point; 222-lower truing concave inflection point; 22 a-a lower first shaping surface; 22 b-a lower second shaping surface; 22 c-a lower third shaping surface;
3-a second shaping die; 31-second shaping upper die; 32-second shaping lower die; 33-a correction block;
4-a workpiece; 41-upper wall; 42-lower wall; 43-connecting the walls.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 5, the bending punch forming module includes a bending die 1 and a first shaping die 2, wherein the bending die 1 includes an upper bending die 11 and a lower bending die 12;
a pause angle type upper bending convex inflection point 111 is arranged at the joint of the bending surface of the upper bending die 11;
a blunt angle type lower bending convex inflection point 121 is arranged at the joint of the bending surface of the lower bending die 12;
the first shaping mold 2 includes a first shaping upper mold 21 and a first shaping lower mold 22;
a blunt angle type upper shaping convex inflection point 211 is arranged at the joint of the shaping surface of the first shaping upper die 21;
the joint of the shaping surface of the first shaping lower die 22 is provided with a lower shaping convex inflection point 221 in a blunt angle type.
Further, an arc-shaped upper bending concave inflection point 112 is further arranged at the joint of the bending surface of the upper bending die 11;
a circular arc type lower bending concave inflection point 122 is also arranged at the joint of the bending surface of the lower bending die 12;
an arc-shaped upper shaping concave inflection point 212 is also arranged at the joint of the shaping surface of the first shaping upper die 21;
a circular arc type lower shaping concave inflection point 222 is further arranged at the joint of the shaping surface of the first shaping lower die 22.
Further explaining, the bending upper die 11 includes an upper first bending surface 11a, an upper second bending surface 11b and an upper third bending surface 11 c;
an upper bending convex inflection point 111 is formed at the connection part of the upper first bending surface 11a and the upper second bending surface 11 b; an upper bending concave inflection point 112 is formed at the joint of the upper second bending surface 11b and the upper third bending surface 11 c;
the bending lower die 12 comprises a lower first bending surface 12a, a lower second bending surface 12b and a lower third bending surface 12 c;
a lower bending concave inflection point 122 is formed at the joint of the lower first bending surface 12a and the lower second bending surface 12 b;
the junction of the lower second bending surface 12b and the lower third bending surface 12c forms a lower bending inflection point 121.
Further, the upper second bending surface 11b is an inclined surface, and the upper first bending surface 11a and the upper third bending surface 11c are disposed in parallel.
Further, the lower second bending surface 12b is an inclined surface, and the lower first bending surface 12a and the lower third bending surface 12c are disposed in parallel.
To further illustrate, the first shaping upper die 21 includes an upper first shaping surface 21a, an upper second shaping surface 21b, and an upper third shaping surface 21 c;
an upper shaping convex inflection point 211 is formed at the joint of the upper first shaping surface 21a and the upper second shaping surface 21 b;
an upper shaping concave inflection point 212 is formed at the joint of the upper second shaping surface 21b and the upper third shaping surface 21 c;
first shaping lower die 22 includes a lower first shaping face 22a, a lower second shaping face 22b, and a lower third shaping face 22 c;
a lower shaping concave inflection point 222 is formed at the connection of the lower first shaping surface 22a and the lower second shaping surface 22 b;
the junction of the lower second shaping surface 22b and the lower third shaping surface 22c forms a lower shaping convex inflection point 221.
To explain further, the upper third shaping surface 21c is obliquely and upwardly extending, and the lower third shaping surface 22c is obliquely and upwardly extending.
Further, the angle of inclination of the upper third shaping surface 21c is between 0.5 and 1.5 degrees.
Further, the angle of inclination of the lower third shaping surface 22c is between 0.5 and 1.5 degrees.
Further, the bending punch forming module further includes a second shaping mold 3, and the second shaping mold 3 includes a second shaping upper mold 31 and a second shaping lower mold 32.
Further explaining, the second shaping mold 3 further includes a correcting block 33, and the correcting block 33 abuts against the upper surface of the workpiece 4.
Further explaining, the proof mass 33 abuts against the upper surface of the upper wall 41 of the workpiece 4.
Further, the joints of the shaping surfaces of the second shaping upper die 31 are all connected by arcs; the joints of the shaping surfaces of the second shaping lower die 32 are all connected by circular arcs.
The bending and stamping forming method comprises the following steps:
placing the workpiece 4 in a bending die 1 for bending, and enabling the outer angle of the bending angle of the workpiece 4 to form an arc structure and the inner angle of the bending angle to form an obtuse angle structure;
placing a workpiece 4 in a first shaping die 2 for primary shaping, and enabling the outer angle of the bending angle of the workpiece 4 to keep an arc structure and the inner angle of the bending angle to keep an obtuse angle structure;
and placing the workpiece 4 in the second shaping die 3 for secondary shaping, and enabling the inner angle of the bending angle of the workpiece 4 to form an arc structure.
The working principle is as follows:
the workpiece 4 is a Z-shaped bending stamping part formed by an upper wall 41, a lower wall 42 and a connecting wall 43, and the bending stamping forming die is used for bending, forming and shaping the plate material of the workpiece 4.
The bending punch forming die comprises a bending die 1, a first shaping die 2 and a second shaping die 3, a workpiece 4 is bent firstly, and then a final product is obtained through secondary shaping.
The bending surface of the upper bending die 11 is provided with an upper bending concave inflection point 112 of an arc type and an upper bending convex inflection point 111 of an obtuse angle type, the corresponding bending surface of the lower bending die 12 is provided with a lower bending convex inflection point 121 of the obtuse angle type and a lower bending concave inflection point 122 of the arc type, so the arc type and the obtuse angle type structure are matched, the outer angle of the bending angle is of an arc structure, and the inner angle of the bending angle is of an obtuse angle structure.
The arc structure is beneficial to forming and has higher strength, the obtuse angle structure is beneficial to reducing resilience, the arc structure and the obtuse angle structure are matched together, the bending process is guaranteed, the resilience of the workpiece 4 is reduced to a certain degree, the dimensional stability is improved, and the subsequent shaping process is facilitated.
The first shaping die 2 comprises a first shaping upper die 21 and a first shaping lower die 22, the shaping surface of the first shaping upper die 21 is provided with a blunt-angle type upper shaping convex inflection point 211 and an arc type upper shaping concave inflection point 212, the second shaping lower die 32 is provided with a matched arc type lower shaping concave inflection point 222 and an obtuse-angle type lower shaping convex inflection point 221, the inner angle of the bending angle of the workpiece 4 in one shaping is kept to be an obtuse-angle structure, the outer angle of the bending angle is an arc structure, the resilience of one shaping is reduced, and the shaping precision and the size stability are improved.
And the workpiece 4 is shaped for the second time in the second shaping die 3 to obtain a final product, the joint of the shaping surfaces of the second shaping upper die 31 and the second shaping lower die 32 is of an arc structure, and the inner angle of the bending angle of the workpiece 4 is formed into the arc structure after shaping, so that the workpiece 4 conforms to the final shape, and the strength of the bending angle is improved.
The whole stamping process is bending firstly and then secondary shaping, and the resilience of bending is reduced by utilizing the obtuse angle structure, so that the dimensional stability is improved, the dimensional accuracy is improved, the bending process is improved, and the quality is improved.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (8)
1. The bending punch forming module is characterized by comprising a bending die (1) and a first shaping die (2), wherein the bending die (1) comprises an upper bending die (11) and a lower bending die (12);
a pause angle type upper bending convex inflection point (111) is arranged at the joint of the bending surface of the upper bending die (11);
a pause angle type lower bending convex inflection point (121) is arranged at the joint of the bending surface of the lower bending die (12);
the first shaping die (2) comprises a first shaping upper die (21) and a first shaping lower die (22);
a blunt angle type upper shaping convex inflection point (211) is arranged at the joint of the shaping surface of the first shaping upper die (21);
and a blunt angle type lower shaping convex inflection point (221) is arranged at the joint of the shaping surface of the first shaping lower die (22).
2. The bending punch forming module according to claim 1, wherein a circular arc type upper bending concave inflection point (112) is further arranged at the joint of the bending surface of the upper bending die (11);
the joint of the bending surface of the lower bending die (12) is also provided with an arc-shaped lower bending concave inflection point (122);
the joint of the shaping surface of the first shaping upper die (21) is also provided with an arc-shaped upper shaping concave inflection point (212);
and a circular arc type lower shaping concave inflection point (222) is also arranged at the joint of the shaping surface of the first shaping lower die (22).
3. The bending punch forming module according to claim 2, wherein the bending upper die (11) comprises an upper first bending surface (11a), an upper second bending surface (11b) and an upper third bending surface (11 c);
the upper bending convex inflection point (111) is formed at the joint of the upper first bending surface (11a) and the upper second bending surface (11 b);
the upper bending concave inflection point (112) is formed at the joint of the upper second bending surface (11b) and the upper third bending surface (11 c);
the lower bending die (12) comprises a lower first bending surface (12a), a lower second bending surface (12b) and a lower third bending surface (12 c);
the lower bending concave inflection point (122) is formed at the joint of the lower first bending surface (12a) and the lower second bending surface (12 b);
the joint of the lower second bending surface (12b) and the lower third bending surface (12c) forms the lower bending convex inflection point (121).
4. The bend punch forming module according to claim 2, characterized in that the first shaping upper die (21) comprises an upper first shaping face (21a), an upper second shaping face (21b) and an upper third shaping face (21 c);
the joint of the upper first shaping surface (21a) and the upper second shaping surface (21b) forms the upper shaping convex inflection point (211);
the junction of the upper second shaping surface (21b) and the upper third shaping surface (21c) forms the upper shaping concave inflection point (212);
said first shaping lower die (22) comprising a lower first shaping face (22a), a lower second shaping face (22b) and a lower third shaping face (22 c);
the junction of the lower first shaping face (22a) and the lower second shaping face (22b) forms the lower shaping concave inflection point (222);
the junction of the lower second shaping surface (22b) and the lower third shaping surface (22c) forms the lower shaping convex inflection point (221).
5. The bend punch forming module set forth in claim 4, wherein said upper third shaping surface (21c) is disposed to extend obliquely upward, and said lower third shaping surface (22c) is disposed to extend obliquely upward.
6. The bending punch forming module according to claim 1, further comprising a second shaping die (3), wherein the second shaping die (3) comprises a second shaping upper die (31) and a second shaping lower die (32).
7. The bending punch forming module according to claim 6, wherein the second shaping die (3) further comprises a correction block (33), the correction block (33) abutting against an upper surface of the workpiece (4).
8. The bending punch forming module according to claim 6, wherein the joints of the shaping surfaces of the second shaping upper die (31) are all connected by circular arcs; the joints of the shaping surfaces of the second shaping lower die (32) are all connected in an arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020244103.3U CN212370977U (en) | 2020-03-03 | 2020-03-03 | Bending punch forming module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020244103.3U CN212370977U (en) | 2020-03-03 | 2020-03-03 | Bending punch forming module |
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| Publication Number | Publication Date |
|---|---|
| CN212370977U true CN212370977U (en) | 2021-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020244103.3U Active CN212370977U (en) | 2020-03-03 | 2020-03-03 | Bending punch forming module |
Country Status (1)
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|---|---|
| CN (1) | CN212370977U (en) |
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2020
- 2020-03-03 CN CN202020244103.3U patent/CN212370977U/en active Active
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