CN219745922U - Sheet metal punching and folding die - Google Patents
Sheet metal punching and folding die Download PDFInfo
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- CN219745922U CN219745922U CN202321324772.1U CN202321324772U CN219745922U CN 219745922 U CN219745922 U CN 219745922U CN 202321324772 U CN202321324772 U CN 202321324772U CN 219745922 U CN219745922 U CN 219745922U
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- 239000002184 metal Substances 0.000 title claims abstract description 80
- 238000004080 punching Methods 0.000 title description 5
- 238000000465 moulding Methods 0.000 claims abstract description 43
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides a sheet metal stamping die which comprises a lower die and an upper die matched with the lower die, wherein the lower die comprises a bottom plate and a female die, a first molding surface is arranged on one surface of the female die, which is far away from the bottom plate, the distance between the first molding surface and the bottom plate is gradually reduced from the middle to two sides, first arc-shaped surfaces are respectively arranged on two sides of the first molding surface, the upper die comprises a male die, a second molding surface is arranged on one surface of the male die, which is close to the bottom plate, the distance between the second molding surface and the bottom plate is gradually reduced from the middle to two sides, the second molding surface is parallel to the first molding surface, and second arc-shaped surfaces are respectively arranged on two opposite sides of the second molding surface. The utility model solves the technical problem of poor yield of the workpiece, produces the technical effects of improving the quality of the workpiece and ensuring the flatness of the plane section of the metal sheet workpiece, effectively reduces the yield of the workpiece, and has convenient operation and is beneficial to improving the production efficiency.
Description
Technical Field
The utility model relates to the technical field of sheet metal machining, in particular to a sheet metal stamping and folding die.
Background
As shown in fig. 1, in the prior art, there is a sheet metal workpiece including a planar section and arc sections respectively disposed at two ends of the planar section, and the processing procedure is to curl a strip sheet metal into an arc shape, and then process the planar section on the arc-shaped workpiece.
At present, when a plane section is machined on an arc-shaped long metal sheet, two flat plates are usually placed on two sides of the long metal sheet respectively, then a heavy object is placed on the flat plates or a fixing clamp is used for clamping the long metal sheet by the two flat plates, and the long metal sheet is deformed by the pressure generated by the two flat plates on the long metal sheet so as to machine the plane section. Because take off back rectangular sheet metal from rectangular sheet metal with the flat board can produce the resilience of certain degree, lead to the plane section on the work piece to be uneven, influence the work piece later stage and use, therefore current mode yields of processing is not good.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a sheet metal stamping and folding die which solves the problem of poor workpiece yield in the prior art.
According to the embodiment of the utility model, the metal sheet stamping die comprises a lower die and an upper die matched with the lower die, wherein the upper die is arranged in a lifting manner along the vertical direction, the lower die comprises a bottom plate and a female die arranged on the bottom plate, a first forming surface is arranged on one surface of the female die, which is far away from the bottom plate, the distance between the first forming surface and the bottom plate is gradually reduced from the middle to two sides, first arc surfaces are respectively arranged on two sides of the first forming surface, the distance between the first arc surfaces and the bottom plate is gradually increased along the direction, which is far away from the first forming surface, the upper die comprises a male die, a second forming surface is arranged on one surface of the male die, which is close to the bottom plate, the distance between the second forming surface and the bottom plate is gradually reduced from the middle to two sides, the second forming surface is parallel to the first forming surface, second arc surfaces are respectively arranged on two opposite sides of the second forming surface, and the distance between the second arc surfaces and the bottom plate is gradually increased along the direction, which is far away from the second forming surface.
Further, a first threaded hole is formed in the bottom plate, a first through hole penetrating through the female die is formed in the female die, and the first through hole and the first threaded hole are coaxially arranged.
Further, the lower die is further provided with a limiting plate, the limiting plate is provided with a limiting groove, and the female die is arranged in the limiting groove and is attached to the inner wall of the limiting groove.
Further, a second threaded hole is formed in the bottom plate, and a second through hole penetrating through the limiting plate is formed in the limiting plate and is coaxial with the second threaded hole.
Furthermore, the opposite sides of the male die are respectively provided with a clearance groove, and the clearance grooves are respectively matched with the limiting plates.
Further, a positioning column is arranged on the bottom plate, a through hole for the positioning column to pass through is formed in the limiting plate, and a positioning hole matched with the positioning column is formed in one surface of the male die, which is close to the bottom plate.
Furthermore, a positioning needle is further arranged on the female die, and the positioning needle is located on the first molding surface.
Furthermore, a clearance hole is formed in one surface of the male die, which is close to the bottom plate, and the clearance hole and the positioning needle are coaxially arranged.
Further, an interval is formed between the first arc-shaped surface and the first arc-shaped surface, and the interval between the first arc-shaped surface and the second arc-shaped surface is gradually increased along the direction away from the first forming surface.
Compared with the prior art, the utility model has the following beneficial effects: the lower die comprises a female die, the female die is provided with a first molding surface, the two sides of the first molding surface are respectively provided with a first arc surface, the upper die comprises a male die, the male die is provided with a second molding surface, the two sides of the second molding surface are respectively provided with a second arc surface, the arc-shaped strip metal plate to be processed is placed between the female die and the male die, part of strip metal plate is pressed on the female die in the pressing process of the male die, at the moment, the first molding surface and the second molding surface are respectively abutted with the strip metal plate to deform part of strip metal plate, the rest part of strip metal plate extends out from the space between the first molding surface and the second arc surface, the space between the first molding surface and the bottom plate is gradually reduced from the middle to the two sides, the interval between second die surface and the bottom plate reduces gradually from the centre to both sides and second die surface and first die surface are parallel, first die surface and second die surface are with partly rectangular metal sheet press the shape that has certain radian, and the bending direction of rectangular metal sheet between first die surface and the second die surface is opposite with the bending direction before pressing, the rectangular metal sheet of pressing when taking off the terrace die after the punching press is accomplished can rebound to the bending direction before pressing and form the plane after making partly rectangular metal sheet rebound, thereby processing out smooth planar section on the work piece, it has solved the not good technical problem of work piece yields, the production improves work piece quality, ensure the planar section of metal sheet work piece and level the technological effect, effectively reduce the work piece defective rate, and convenient operation, do benefit to promote production efficiency.
Drawings
FIG. 1 is a schematic view of a prior art sheet metal workpiece;
FIG. 2 is a schematic view of a sheet metal stamping die according to an embodiment of the utility model;
FIG. 3 is a schematic view of a lower die of a sheet metal stamping die according to an embodiment of the present utility model;
fig. 4 is a schematic structural view of a male die in a sheet metal stamping die according to an embodiment of the present utility model;
FIG. 5 is a cross-sectional view of a sheet metal stamping die according to an embodiment of the present utility model;
FIG. 6 is a cross-sectional view of another cross-section of a sheet metal stamping die according to an embodiment of the present utility model;
fig. 7 is a schematic structural diagram of a sheet metal stamping die and a sheet metal workpiece according to an embodiment of the utility model.
In the above figures: 1. a lower die; 2. an upper die; 3. a bottom plate; 31. a first threaded hole; 32. a second threaded hole; 33. positioning columns; 4. a female die; 41. a first molding surface; 42. a first arcuate surface; 43. a first through hole; 44. a positioning needle; 5. a male die; 51. a second molding surface; 52. a second arcuate surface; 53. positioning holes; 54. a clearance groove; 55. a clearance hole; 6. a limiting plate; 61. a limit groove; 62. a second through hole; 7. a first threaded connection; 8. a second threaded connection; 100. a workpiece; 101. a planar section; 102. an arc section; 103. and (5) hole sites.
Detailed Description
The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.
As shown in fig. 1 to 7, an embodiment of the present utility model proposes a sheet metal stamping die for stamping a long sheet metal rolled into an arc shape to shape the long sheet metal and process a plane, thereby processing a plane section 101 on a sheet metal workpiece 100.
Referring to fig. 2, 3 and 4, the sheet metal stamping die includes a lower die 1 and an upper die 2 matched with the lower die 1, wherein the upper die 2 can be lifted along a vertical direction and is close to or far from the lower die 1. The lower die 1 comprises a bottom plate 3 and a female die 4 arranged on the bottom plate 3, a first molding surface 41 is arranged on one surface of the female die 4 away from the bottom plate 3, the distance between the first molding surface 41 and the bottom plate 3 is gradually reduced from the middle to two sides, namely, the first molding surface 41 is in an arc shape with a convex middle, first arc surfaces 42 are respectively arranged on two sides of the first molding surface 41, and the distance between the first arc surfaces 42 and the bottom plate 3 is gradually increased along the direction away from the first molding surface 41; the upper die 2 comprises a male die 5, a second molding surface 51 is arranged on one surface of the male die 5, which is close to the bottom plate 3, and the distance between the second molding surface 51 and the bottom plate 3 is gradually reduced from the middle to two ends, namely, the second molding surface 51 is in a middle concave arc shape, the second molding surface 51 is arranged in parallel with the first molding surface 41, second arc surfaces 52 are respectively arranged on two opposite sides of the second molding surface 51, and the distance between the second arc surfaces 52 and the bottom plate 3 is gradually increased along the direction away from the second molding surface 51.
As shown in fig. 1, fig. 2 and fig. 7, when the metal sheet stamping die provided in this embodiment is used to stamp an arc-shaped long metal sheet, the long metal sheet is placed on the die 4, and the bending direction of the long metal sheet is opposite to the bending direction of the first molding surface 41 and the bending direction of the first arc-shaped surface 42, the lower die 1 descends along the vertical direction and presses a part of the long metal sheet on the die 4 through the punch 5, at this time, the first molding surface 41 and the second molding surface 51 are respectively abutted to the long metal sheet to deform a part of the long metal sheet, the rest part of the long metal sheet extends from between the first arc-shaped surface 42 and the second arc-shaped surface 52, at this time, the first molding surface 41 and the second molding surface 51 press a part of the long metal sheet into a shape with a certain radian, and the bending direction of the long metal sheet between the first molding surface 41 and the first molding surface 51 is opposite to the bending direction before the punch, after the stamping is completed, the long metal sheet is removed from the punch 5 is pressed, the bending direction of the long metal sheet is pressed to the long metal sheet after the punch is pressed, the part of the long metal sheet is pressed to the flat section 101 is pressed, and the flat sheet is easily and the work piece is raised, and the work piece is finished, and the efficiency is improved, and the work piece is well is finished, and the sheet is 100 is easily and the sheet is bent.
As shown in fig. 3 and 5, the bottom plate 3 is provided with a first threaded hole 31, the female die 4 is provided with a first through hole 43 penetrating through the female die 4, the first through hole 43 and the first threaded hole 31 are coaxially arranged after the female die 4 is placed on the bottom plate 3, a first threaded hole 31 connecting piece is arranged in the first through hole 43, and the female die 4 can be fixed on the bottom plate 3 through the cooperation of the first threaded connecting piece 7 and the first threaded hole 31, so that the overall structure stability of the lower die 1 is ensured.
Referring to fig. 3 and 6, in order to prevent the die 4 from generating unexpected movement on the bottom plate 3, the lower die 1 is further provided with a limiting plate 6, the limiting plate 6 has a limiting groove 61, the die 4 is disposed in the limiting groove 61 and is attached to an inner wall of the limiting groove 61, and the limiting plate 6 is disposed around the die 4, so as to limit the die 4 from moving on the bottom plate 3, so that the position of the die 4 on the bottom plate 3 is kept stable, and deformation of the workpiece 100 caused by movement of the die 4 in the stamping process is avoided.
Specifically, the bottom plate 3 is provided with a second threaded hole 32, the limiting plate 6 is provided with a second through hole 62 penetrating through the limiting plate 6, the limiting plate 6 is placed on the bottom plate 3, the second through hole 62 and the second threaded hole 32 are coaxially arranged, a second threaded connecting piece 8 is arranged in the second through hole 62, and the limiting plate 6 can be fixed on the bottom plate 3 through the cooperation of the second threaded connecting piece 8 and the second threaded hole 32.
As shown in fig. 3, 4 and 6, opposite sides of the male die 5 are respectively provided with a clearance groove 54, the clearance grooves 61 are matched with the limiting plates 6, the clearance grooves 54 are used for avoiding the limiting plates 6 when the metal sheet punching and folding die is closed, and when the male die 5 compresses the strip metal sheet on the female die 4, part of the limiting plates 6 stretches into the male die 5, so that when the male die 5 is abutted against the strip metal sheet, the male die 5 is not abutted against the limiting plates 6, and the male die 5 is ensured to compress the strip metal sheet on the female die 4 and deform the strip metal sheet.
In detail, the bottom plate 3 is further provided with a positioning column 33, the limiting plate 6 is provided with a through hole for the positioning column 33 to pass through, the height of one end of the positioning column 33 away from the bottom plate 3 is higher than the height of one surface of the limiting plate 6 away from the bottom plate 3, and one surface of the male die 5 close to the bottom plate 3 is provided with a positioning hole 53 matched with the positioning column 33. The metal sheet punching and folding die is positioned by the cooperation of the positioning column 33 and the positioning hole 53 when being closed, so that the male die 5 is aligned with the female die 4, the alignment of the first molding surface 41 and the second molding surface 51 is ensured, and meanwhile, the strip metal sheet is extruded, so that errors of the processed workpiece 100 caused by the deviation when the male die 5 moves are avoided.
Referring to fig. 3 and 6, the female die 4 is further provided with a positioning pin 44, the positioning pin 44 is located on the first molding surface 41 and the positioning pin 44 protrudes out of the female die 4, the workpiece 100 is provided with a hole 103 through which the positioning pin 44 passes, and when the long metal sheet is placed on the female die 4, the long metal sheet can be positioned by matching the positioning pin 44 with the hole 103, so that the flat section 101 is ensured to be machined at the preset position of the long metal sheet.
Specifically, the one side of terrace die 5 near bottom plate 3 is equipped with keeps away the position hole 55, keep away the position hole 55 with the coaxial setting of locating needle 44, keep away the position hole 55 be used for dodging in the in-process that the sheet metal dashes and rolls over the mould compound die the locating needle 44, and adopt the sheet metal dashes when rolls over the mould to rectangular sheet metal the locating needle 44 stretches into keep away in the position hole 55, ensure terrace die 5 is fully close to die 4 and acts on rectangular sheet metal and order about rectangular sheet metal and produce deformation.
As shown in fig. 5, in this embodiment, a space is provided between the first arcuate surface 42 and the first arcuate surface 42, and the space between the first arcuate surface 42 and the second arcuate surface 52 is gradually increased along a direction away from the first molding surface 41, so that a space for passing through the arcuate section 102 on the workpiece 100 is formed between the first arcuate surface 42 and the second arcuate surface 52, and the contact between the male die 5 and/or the female die 4 and the arcuate section 102 when the sheet metal stamping die is clamped is prevented, which results in deformation of the arcuate section 102, which is beneficial to further improving the quality of the workpiece 100 and improving the reliability of the sheet metal stamping die.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (9)
1. The utility model provides a sheet metal dashes and rolls over mould, includes lower mould and with lower mould matched with last mould, goes up mould along vertical direction liftable setting, its characterized in that: the lower die comprises a bottom plate and a female die arranged on the bottom plate, wherein a first forming surface is arranged on one surface of the female die, far away from the bottom plate, the distance between the first forming surface and the bottom plate is gradually reduced from the middle to two sides, first arc-shaped surfaces are respectively arranged on two sides of the first forming surface, the distance between the first arc-shaped surfaces and the bottom plate is gradually increased along the direction far away from the first forming surface, the upper die comprises a male die, one surface of the male die, close to the bottom plate, is provided with a second forming surface, the distance between the second forming surface and the bottom plate is gradually reduced from the middle to two sides and is parallel to the first forming surface, second arc-shaped surfaces are respectively arranged on two opposite sides of the second forming surface, and the distance between the second arc-shaped surfaces and the bottom plate is gradually increased along the direction far away from the second forming surface.
2. A sheet metal stamping die as defined in claim 1, wherein: the bottom plate is provided with a first threaded hole, the female die is provided with a first through hole penetrating through the female die, and the first through hole and the first threaded hole are coaxially arranged.
3. A sheet metal stamping die as defined in claim 1, wherein: and the lower die is also provided with a limiting plate, the limiting plate is provided with a limiting groove, and the female die is arranged in the limiting groove and is attached to the inner wall of the limiting groove.
4. A sheet metal stamping die as defined in claim 3, wherein: the bottom plate is provided with a second threaded hole, and the limiting plate is provided with a second through hole penetrating through the limiting plate and coaxially arranged with the second threaded hole.
5. A sheet metal stamping die as defined in claim 3, wherein: and the opposite sides of the male die are respectively provided with a clearance groove, and the clearance grooves are respectively matched with the limiting plate.
6. A sheet metal stamping die as defined in claim 3, wherein: the positioning column is arranged on the bottom plate, the through hole for the positioning column to pass through is formed in the limiting plate, and a positioning hole matched with the positioning column is formed in one surface of the male die, which is close to the bottom plate.
7. A sheet metal stamping die as defined in claim 1, wherein: and the female die is also provided with a positioning needle, and the positioning needle is positioned on the first molding surface.
8. A sheet metal stamping die as defined in claim 7, wherein: and a clearance hole is formed in one surface of the male die, which is close to the bottom plate, and the clearance hole and the positioning needle are coaxially arranged.
9. A sheet metal stamping die as defined in claim 1, wherein: the first arc-shaped surface and the first arc-shaped surface are spaced, and the space between the first arc-shaped surface and the second arc-shaped surface is gradually increased along the direction away from the first forming surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321324772.1U CN219745922U (en) | 2023-05-24 | 2023-05-24 | Sheet metal punching and folding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321324772.1U CN219745922U (en) | 2023-05-24 | 2023-05-24 | Sheet metal punching and folding die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219745922U true CN219745922U (en) | 2023-09-26 |
Family
ID=88088300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321324772.1U Active CN219745922U (en) | 2023-05-24 | 2023-05-24 | Sheet metal punching and folding die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219745922U (en) |
-
2023
- 2023-05-24 CN CN202321324772.1U patent/CN219745922U/en active Active
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