CN202894089U - Hot stamping module with multi-bore-diameter cooling pipeline - Google Patents
Hot stamping module with multi-bore-diameter cooling pipeline Download PDFInfo
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- CN202894089U CN202894089U CN 201220234838 CN201220234838U CN202894089U CN 202894089 U CN202894089 U CN 202894089U CN 201220234838 CN201220234838 CN 201220234838 CN 201220234838 U CN201220234838 U CN 201220234838U CN 202894089 U CN202894089 U CN 202894089U
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- cooling
- cooling pipe
- diameter
- stamping module
- hot stamping
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Abstract
The utility model discloses a hot stamping module with a multi-bore-diameter cooling pipeline, and belongs to the field of hot stamping forming. The diameter of the cooling pipeline of the hot stamping module gradually increases or decreases according the distance to a water inlet, or the diameter of the cooling pipeline is partially changed, so that flow fields in a water inlet tank and a water outlet tank are changed, the uniformity of the flow rate of the cooling water at a water inlet and a water outlet is optimized, and the flow rate of the cooling water inside the pipeline is enabled to be uniform. The hot stamping module with the multi-bore-diameter cooling pipeline can resolves the problem of non-uniform cooling capacity of the hot stamping module, and can largely improve the uniformity of the mechanical property and the forming precision of a forming part.
Description
Technical field
This utility model belongs to drop stamping Design of Dies development field, mainly designs the inner cooling system design.
Background technology
The drop stamping technology is a new technology that is specifically designed to shaping high-strength steel sheet and unimach plate stamping part, drip molding can obtain the above intensity of 1500MPa, forming accuracy is high, the important spare part that is used for automotive security spare and structural member and other occasions, can improve automobile security performance, alleviate tare and fuel-economy performance.The drop stamping technology is to be heated to ultrahigh-strength steel plates more than the austenitizing temperature and fully insulation, its plasticity and ductility can increase, yield strength reduces rapidly, be shaped rapidly in shaping and quenching integrated mould and obtain high-intensity martensitic structure this moment, thereby obtain forming accuracy height, high-intensity heat-punch member.
The shaping of steel plate and quenching are all finished in mould, for guarantee cooling velocity 25 ℃/more than the s to guarantee martensite transfor mation, and guarantee the even cooling of piece surface so that part tissue, performance are even, avoid producing low intensity points, reduce forming residual stress, guarantee forming quality, the even cooling capacity of mould is extremely important.
In the processing and heat treatment process of mould, when the length of mould sections 〉=400mm, to bring difficulty to the processing of cooling pipe, and in heat treatment process, be difficult for through hardening, the distortion larger, the length of single die module is difficult for excessive, and single die module cooling system generally is designed with a water inlet, a delivery port.
During at present cooling pipe design both at home and abroad, all adopt the equal diameter cooling pipe, the problem that water inlet differs greatly apart from cooling water flow velocity in the different cooling pipe of distance at this moment will occur, as shown in Figure 2.Based on the problems referred to above, carry out the improvement of subordinate's utility model module cooling pipe.
Summary of the invention
This utility model is intended to solve the homogeneity question of hot stamping die cooling capacity, according to water velocity in the cooling pipe, change some cooling pipe diameter, make the interior flow velocity of pipeline be tending towards even, with the raising cooling effectiveness, and increase substantially hot press-formed mechanical property uniformity.
Concrete technical scheme is as follows:
At first design cooling water intake and delivery port, cooling water intake pool and discharge bay, the direction of cooling water intake and delivery port can be designed as in the same way or is incorgruous; Its version adopts circular hole, is used for being connected with the external refrigeration pipeline.The effect of cooling water intake pool and discharge bay is mainly played the cooling water of coming in from cooling water intake and is diverted to effect in the cooling pipe, and it also has the effect of buffering, and its shape adopts circular hole or cuboid.
Secondly, adopt the cooling pipe of unified diameter, carry out numerical simulation;
At last, according to existing numerical simulation result, carry out the optimal design that the cooling pipe aperture size distributes, namely carry out the design of multiple aperture cooling pipe, adopt the pipe diameter or the local method that changes the diameter of some pipeline that progressively increase or reduce apart from water inlet, with the flow field of change into and out of the pond, thereby optimize the interior flow field of pipeline, make its homogenising.
Description of drawings
Fig. 1 is the drop stamping module map of multiple aperture cooling pipe.
Fig. 2 is entery and delivery port flow field figure in the pipeline in the same way the time.
Fig. 3 is pipeline flow field and the flow velocity contour map on the pipeline intermediate interface (adopt and increase behind the diameter of the nearlyer pipeline of water inlet the flow field in the pipeline) of optimizing.
Among the figure: the 1-intake pool; The 2-water inlet; The 3-delivery port; The 4-discharge bay; The cooling pipe of 5-different tube diameters.
The specific embodiment
Further specify content of the present utility model and specific implementation method below in conjunction with the accompanying drawing example.
Be that 22MnB5, thickness are the super-high strength steel plate of 2mm for material, adopting the pipeline mean flow rate is 1.13m/s, cooling pond length * wide * the height of design is: (stamping parts wide+10) mm * 35mm * 60mm, the entery and delivery port diameter equals pond width, position as shown in Figure 1, the cooling pipe diameter is 10mm, spacing is 10mm, is 5mm apart from mold cavity surface (mould upper surface among the figure) distance.Shown in Fig. 2 numerical simulation result, with flow velocity in the water inlet close together pipeline will much smaller than with the distant pipeline of water inlet in flow velocity.
Adopt the diameter that increases with water inlet close together pipeline to be respectively 11.5mm, 11mm and 10.5mm, again carry out afterwards numerical simulation, the result as shown in Figure 3.Comparison diagram 2 and Fig. 3, as can be known, the uniformity of the interior water flow velocity of cooling pipe is better than the uniformity of the interior water flow velocity of pipeline among Fig. 2 among Fig. 3.
The drop stamping module of multiple aperture cooling pipe described in the utility model has outstanding advantages, employing the method is improved the problem of drop stamping module cooling capacity inequality and solves, improved cooling effectiveness, so that heat-punch member mechanical property, forming accuracy are greatly improved, has important realistic price.
Claims (1)
1. the drop stamping module of a multiple aperture cooling pipe, it is characterized in that described inside modules is provided with cooling water intake, delivery port, intake pool, discharge bay and straightens cooling pipe directly, described cooling pipe diameter adopts the mode that straightens the footpath, namely adopt the pipe diameter that progressively increases or reduce apart from water inlet, or the local diameter that changes some pipeline, to change the flow field into and out of the pond, so that the flow field in the cooling pipe is tending towards homogenising.
2. the drop stamping module of multiple aperture cooling pipe as claimed in claim 1 is characterized in that, the direction of cooling water intake, delivery port adopts in the same way or be incorgruous; Its form is taked circular hole, with convenient external cooling pipe.
3. the drop stamping module of multiple aperture cooling pipe as claimed in claim 1 is characterized in that, intake pool, discharge bay version are circular hole or cuboid, plays the cooling water buffer shunting or only plays shunting action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220234838 CN202894089U (en) | 2012-05-24 | 2012-05-24 | Hot stamping module with multi-bore-diameter cooling pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220234838 CN202894089U (en) | 2012-05-24 | 2012-05-24 | Hot stamping module with multi-bore-diameter cooling pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202894089U true CN202894089U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220234838 Expired - Lifetime CN202894089U (en) | 2012-05-24 | 2012-05-24 | Hot stamping module with multi-bore-diameter cooling pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202894089U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107263809A (en) * | 2017-08-02 | 2017-10-20 | 象山宁越模具有限公司 | A kind of processing technology of inside door handle mould and its mould |
| CN111844675A (en) * | 2020-08-03 | 2020-10-30 | 江阴市江南氟塑有限公司 | Extrusion preparation method of PTFE (Polytetrafluoroethylene) high-density paste extrusion pipe with caliber of more than 400 |
-
2012
- 2012-05-24 CN CN 201220234838 patent/CN202894089U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107263809A (en) * | 2017-08-02 | 2017-10-20 | 象山宁越模具有限公司 | A kind of processing technology of inside door handle mould and its mould |
| CN111844675A (en) * | 2020-08-03 | 2020-10-30 | 江阴市江南氟塑有限公司 | Extrusion preparation method of PTFE (Polytetrafluoroethylene) high-density paste extrusion pipe with caliber of more than 400 |
| CN111844675B (en) * | 2020-08-03 | 2022-08-19 | 江阴市江南氟塑有限公司 | Extrusion preparation method of PTFE (polytetrafluoroethylene) high-density paste extrusion pipe with caliber of more than 400 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
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| CX01 | Expiry of patent term |