CN210847967U - Support mould that hot punching cold punched - Google Patents
Support mould that hot punching cold punched Download PDFInfo
- Publication number
- CN210847967U CN210847967U CN201921855573.7U CN201921855573U CN210847967U CN 210847967 U CN210847967 U CN 210847967U CN 201921855573 U CN201921855573 U CN 201921855573U CN 210847967 U CN210847967 U CN 210847967U
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- Prior art keywords
- punching
- die
- cold
- plate
- lower die
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- Expired - Fee Related
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- 238000004080 punching Methods 0.000 title claims abstract description 118
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 238000010791 quenching Methods 0.000 claims description 5
- 230000000171 quenching effect Effects 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model provides a mould supporting hot punching and cold punching, which comprises a lower die holder, a lower die, an upper fixed plate, a punching column, a push plate, a cold punching knife plate and a cold punching oil cylinder; the lower die is fixed on the lower die base, and the lower die and the upper die are both positioned below the upper fixing plate; a push plate is arranged above the upper fixing plate, and a stamping head is fixedly connected above the push plate; the punching column is slidably arranged in the upper fixing plate, the top end of the punching column extends out of the upper fixing plate, the bottom end of the punching column is arranged in the upper die, and the pushing plate can press down the punching column; cooling pipelines are arranged in the upper die and the lower die; the bottom of the punching column is also sleeved with an extension spring which is fixedly connected with the upper fixing plate and the upper die; the lower die is internally provided with a cold punching hole, the cold punching knife plate is inserted into the cold punching hole, the bottom of the cold punching knife plate is connected with a cold punching oil cylinder, and the cold punching oil cylinder can upwards press the cold punching knife plate. The utility model discloses can support hot punching and cold punching, machining efficiency is high, and positioning error is little.
Description
Technical Field
The utility model belongs to the technical field of stamping die, concretely relates to support hot towards cold mould towards.
Background
In the production of automobile stamping parts, compared with cold stamping forming, the hot stamping forming process can effectively solve the problems of light weight, collision safety, high-strength lower stamping part rebound and die wear resistance. The performance of the hot stamping die, which is the most important part in hot stamping, directly determines the forming quality of the hot stamping finished product. The existing hot stamping die can only carry out hot stamping on a workpiece, and if redundant structures appear at the edge of a formed workpiece, the workpiece needs to be sent to cold stamping equipment for correction, so that the processing efficiency is low, and the positioning error is large. The upper die and the upper die base of the existing hot stamping die are fixedly connected, a stamping machine is required to lift the whole upper die and the upper die base during die opening, and the stamping machine has large work and high energy consumption.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a support hot towards cold mould towards in order to solve hot stamping die machining efficiency low, the big problem of punching machine acting.
The utility model provides a following technical scheme:
a die supporting hot punching and cold punching comprises a lower die base, a lower die, an upper fixing plate, a punching column, a push plate, a cold punching knife plate and a cold punching oil cylinder, wherein the lower die and the upper die are matched with each other; the upper die and the lower die are internally provided with a cavity for molding a workpiece, the lower die is fixed above the lower die base, the upper fixing plate is fixed above the lower die base through a connecting column, and the lower die and the upper die are both positioned between the upper fixing plate and the lower die base; the push plate is movably positioned above the upper fixing plate, and a stamping head is fixedly connected above the push plate; the punching columns are arranged in the upper fixing plate in a sliding mode along the vertical direction, the top ends of the punching columns extend out of the upper fixing plate, the bottom ends of the punching columns are arranged in the upper die, and the pushing plate can press down the punching columns to enable the upper die and the lower die to be matched; cooling pipelines for quenching workpieces are arranged in the upper die and the lower die; an extension spring for resetting the upper die is sleeved at the bottom of the punching column, and the upper end and the lower end of the extension spring are respectively and fixedly connected with the upper fixing plate and the upper die; the lower die is internally provided with a cold punching hole for guiding the cold punching knife plate, the cold punching knife plate is inserted into the cold punching hole, the top of the cold punching knife plate is provided with a knife edge, the bottom of the cold punching knife plate is connected with the cold punching oil cylinder, and the cold punching oil cylinder can upwards jack the cold punching knife plate, so that the top of the cold punching knife plate extends out of the cold punching hole to correct the edge of a workpiece.
Preferably, the upper die comprises two upper die split plates fixed through bolts, half pipe holes are machined in the contact surfaces of the two upper die split plates, and the two opposite half pipe holes are enclosed to form a pipe hole capable of fixing the cooling pipeline.
Preferably, the lower die comprises two lower die plates fixed by bolts, and the half pipe holes are also machined in the contact surfaces of the two lower die plates.
Preferably, the number of the cold punching knife plates is at least two, the bottoms of the cold punching knife plates are connected through a horizontal connecting block, and the center of the connecting block is fixedly connected with an output rod of the cold punching oil cylinder.
Preferably, an inclined reinforcing rib is welded at the joint between the cold punching knife plate and the connecting block.
Preferably, a guide pillar is installed on the upper fixing plate in the vertical direction, a guide hole matched with the guide pillar is formed in the push plate, the top of the guide pillar extends into the guide hole, and the push plate can move up and down along the guide pillar.
The utility model has the advantages that: the utility model discloses a cold die cutter plate installs in the bed die, utilizes cold towards the hydro-cylinder top towards cold die cutter plate, revises the work piece edge after the hot punching shaping to realized that hot punching and cold punching integral type processing has improved machining efficiency, has reduced positioning error. The push plate is fixedly connected with the punching machine, the upper die, the upper fixing plate and the push plate are connected in a split mode, the punching force of the punching machine is transmitted to the upper die through the push plate, the upper fixing plate and the punching column in sequence during die assembly, and the punching machine only needs to lift the push plate during die opening, so that the work load of the punching machine is reduced, and the energy consumption is saved; the extension spring on the punching column is arranged between the upper fixing plate and the upper die, so that the load weight requirement on the extension spring is reduced, and the material cost of the equipment is reduced.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic top view of the upper mold of the present invention;
labeled as: 1. a lower die holder; 2. a lower die; 3. an upper die; 4. an upper fixing plate; 5. punching the column; 6. pushing the plate; 7. cold punching a knife plate; 8. cold punching the oil cylinder; 9. connecting columns; 10. a cooling duct; 11. separating the upper die; 12. a half-pipe hole; 13. lower die plate splitting; 14. an extension spring; 15. connecting blocks; 16. reinforcing ribs; 17. a guide post; 18. and (4) a guide hole.
Detailed Description
As shown in fig. 1 and 2, a die supporting hot stamping and cold stamping can perform hot stamping and cold stamping on a blank to form an automobile stamping part. The die comprises a lower die base 1, a lower die 2 and an upper die 3 which are matched with each other, an upper fixing plate 4, a punching column 5, a push plate 6, a cold punching knife plate 7 and a cold punching oil cylinder 8. Be equipped with the die cavity that is used for the shaping work piece in last mould 3 and the lower mould 2, lower mould 2 is fixed in the top of die holder 1 through the bolt horizontally, and an upper fixed plate 4 is fixed in the top of die holder 1 through spliced pole 9 and bolt horizontally, and lower mould 2 and last mould 3 all are located the space between an upper fixed plate 4 and the die holder 1 to go up mould 3 and can reciprocate for lower mould 2. A horizontal push plate 6 is slidably arranged above the upper fixing plate 4, and a punching head of a punching machine is fixedly connected above the push plate 6. Four towards post 5 along vertical direction slidable install in upper fixed plate 4, towards the top of post 5 and stretch out upper fixed plate 4, towards the bottom mounting of post 5 in last mould 3, push pedal 6 can push down towards post 5, makes the top of towards post 5 and the top surface parallel and level of upper fixed plate 4 to make the bottom of towards post 5 bulldoze go up mould 3, realize going up mould 3 and lower mould 2 compound die, and then carry out hot briquetting to the work piece blank after heating.
The bottom of the plunger 5 is also sleeved with an extension spring 14 used for resetting the upper die 3, the upper end and the lower end of the extension spring 14 are respectively and fixedly connected with the upper fixing plate 4 and the upper die 3, the upper fixing plate 4 and the upper die 3 are designed in a split mode, therefore, only the upper die 3 needs to be lifted when the extension spring 14 is reset, and the load weight requirement on the extension spring 14 is reduced.
A cold punching hole for guiding the cold punching knife plate 7 is formed in the lower die 2, the cold punching knife plate 7 is inserted into the cold punching hole, a knife edge is arranged at the top of the cold punching knife plate 7, a cold punching oil cylinder 8 is connected to the bottom of the cold punching knife plate 7, the cold punching oil cylinder 8 can upwards push the cold punching knife plate 7, the top of the cold punching knife plate 7 extends out of the cold punching hole to correct the edge of a formed workpiece, and the smoothness of the edge of the workpiece is guaranteed.
The number of the cold punching knife plates 7 is at least two, the bottoms of the cold punching knife plates 7 are connected through a horizontal connecting block 15, inclined reinforcing ribs 16 are welded at the connecting position between the cold punching knife plates 7 and the connecting block 15, so that the connecting strength of the cold punching knife plates 7 and the connecting block 15 is improved, and the center of the connecting block 15 is fixedly connected with an output rod of the cold punching oil cylinder 8.
The guide post 17 is installed on the upper fixing plate 4 along the vertical direction, a guide hole 18 matched with the guide post 17 is formed in the push plate 6, and the top of the guide post 17 extends into the guide hole 18, so that the push plate 6 can move up and down along the guide post 17.
The working process of the die is as follows: transferring a high-temperature workpiece blank from a heating furnace to the lower die 2, starting a punching machine, transmitting the punching force of the punching machine to the upper die 3 through the push plate 6, the punching column 5 and the upper fixing plate 4 in sequence, closing the upper die 3 and the lower die 2 by the punching column 5 and maintaining the pressure for 3-5 seconds after the punching machine acts in place, so as to form a workpiece, and simultaneously quenching the workpiece by cooling media in the upper die 3 and the lower die 2. After the hot stamping is finished, the cold stamping oil cylinder 8 is started, the cold stamping oil cylinder 8 pushes the cold stamping knife plate 7 upwards, and the cold stamping knife plate 7 cuts off redundant structures such as burrs at the edge of the workpiece. After the cold stamping is completed, the press resets the push plate to eliminate the pressure on the upper die 3, the extension spring 14 lifts the upper die 3 upward to open the die, and the formed workpiece is taken out.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A die supporting hot punching and cold punching is characterized by comprising a lower die base, a lower die, an upper fixing plate, a punching column, a push plate, a cold punching knife plate and a cold punching oil cylinder, wherein the lower die and the upper die are matched with each other;
the upper die and the lower die are internally provided with a cavity for molding a workpiece, the lower die is fixed above the lower die base, the upper fixing plate is fixed above the lower die base through a connecting column, and the lower die and the upper die are both positioned between the upper fixing plate and the lower die base; cooling pipelines for quenching workpieces are arranged in the upper die and the lower die;
the push plate is movably positioned above the upper fixing plate, and a stamping head is fixedly connected above the push plate;
the punching columns are arranged in the upper fixing plate in a sliding mode along the vertical direction, the top ends of the punching columns extend out of the upper fixing plate, the bottom ends of the punching columns are arranged in the upper die, and the pushing plate can press down the punching columns to enable the upper die and the lower die to be matched; an extension spring for resetting the upper die is sleeved at the bottom of the punching column, and the upper end and the lower end of the extension spring are respectively and fixedly connected with the upper fixing plate and the upper die;
the lower die is internally provided with a cold punching hole for guiding the cold punching knife plate, the cold punching knife plate is inserted into the cold punching hole, the top of the cold punching knife plate is provided with a knife edge, the bottom of the cold punching knife plate is connected with the cold punching oil cylinder, and the cold punching oil cylinder can upwards jack the cold punching knife plate, so that the top of the cold punching knife plate extends out of the cold punching hole to correct the edge of a workpiece.
2. A hot-stamping and cold-stamping supporting die as claimed in claim 1, wherein the upper die comprises two upper die plates fixed by bolts, half pipe holes are formed in the contact surfaces of the two upper die plates, and the two opposite half pipe holes surround the pipe hole for fixing the cooling pipe.
3. A die supporting hot-stamping and cold-stamping as claimed in claim 2, wherein the lower die comprises two lower die plates fixed by bolts, and the half-pipe holes are also formed on the contact surfaces of the two lower die plates.
4. A die supporting hot punching and cold punching according to claim 3, wherein the number of the cold punching plates is at least two, the bottoms of the cold punching plates are connected through a horizontal connecting block, and the center of the connecting block is fixedly connected with an output rod of the cold punching oil cylinder.
5. A die supporting hot punching and cold punching according to claim 4, wherein an inclined reinforcing rib is welded at the joint between the cold punching blade plate and the connecting block.
6. A mold for supporting hot-punching and cold-punching according to claim 5, wherein the upper fixing plate is vertically provided with guide pillars, the push plate is provided with guide holes matching with the guide pillars, the tops of the guide pillars extend into the guide holes, and the push plate can move up and down along the guide pillars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921855573.7U CN210847967U (en) | 2019-10-30 | 2019-10-30 | Support mould that hot punching cold punched |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921855573.7U CN210847967U (en) | 2019-10-30 | 2019-10-30 | Support mould that hot punching cold punched |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210847967U true CN210847967U (en) | 2020-06-26 |
Family
ID=71299456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921855573.7U Expired - Fee Related CN210847967U (en) | 2019-10-30 | 2019-10-30 | Support mould that hot punching cold punched |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210847967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813241A (en) * | 2020-12-30 | 2021-05-18 | 浙江伏牛钢板弹簧有限公司 | Spray type cooling equipment for heat treatment of few leaf springs of trailer |
-
2019
- 2019-10-30 CN CN201921855573.7U patent/CN210847967U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813241A (en) * | 2020-12-30 | 2021-05-18 | 浙江伏牛钢板弹簧有限公司 | Spray type cooling equipment for heat treatment of few leaf springs of trailer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200626 |