CN203417995U - Gas direct cooling thermal forming die based on boron steel plate - Google Patents
Gas direct cooling thermal forming die based on boron steel plate Download PDFInfo
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- CN203417995U CN203417995U CN201320445831.0U CN201320445831U CN203417995U CN 203417995 U CN203417995 U CN 203417995U CN 201320445831 U CN201320445831 U CN 201320445831U CN 203417995 U CN203417995 U CN 203417995U
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Abstract
The utility model relates to the technical field of thermal treatment plastic forming, and provides a gas direct cooling thermal forming die based on a boron steel plate. The gas direct cooling thermal forming die comprises an upper die, a lower die and semi-open cooling gas channels formed in the contact surfaces of the upper die and the lower die. Both the upper die and the lower die are composed of a plurality of plane areas, convex corner areas and corresponding concave corner areas. The semi-open gas channels are formed in the plane areas and the concave corner areas of the lower die and the plane areas and the concave corner areas of the upper die respectively. According to the gas direct cooling thermal forming die, a workpiece can be formed successfully through stamping of the die in the forming stage, and cooling gas can be used for directly cooling the workpiece in the pressure-maintaining cooling stage.
Description
Technical field
The utility model relates to the equipment in a kind of heat treatment plastic forming technology field, specifically the direct heat of cooling shaping dies of a kind of gas based on boron steel steel plate.
Background technology
Boron steel steel plate is as a series of hot forming steel plates, and production technology as shown in Figure 1, is divided into and is shaped and 2 stages of quench cooled, wherein: shaping stage needs at high temperature by mould punching, to be shaped; Need to can there is the transformation from austenite microstructure to martensite microstructure by controlling certain cooling velocity in the quench cooled stage, obtain high intensity and hardness: different according to boron steel kind, its intensity can reach 500～2000MPa.After common hot forming, intensity reaches the boron steel chemical composition of 1500MPa and is:
| ? | C | Si | Mn | P | S | Cr | B |
| min | 0.20 | 0.20 | 1.00 | - | - | 0.15 | 0.0015 |
| max | 0.25 | 0.35 | 1.30 | 0.025 | 0.015 | 0.25 | 0.0050 |
The common die quenching type of cooling, is to arrange that at mould inside cooling fluid loop is as shown in Fig. 1 c at present.Be the boron steel workpiece under high temperature, enter pressurize cooling stage after being shaped by mould punching, first transfer heat to mould steel, mould steel transfers heat to the cooling liquid being arranged in wherein again, thereby realizes cooling to boron steel workpiece; The cooling effectiveness of this mode workpiece, not only depends on arranging of cooling liquid loop, is limited to the heat transfer efficiency of mould steel simultaneously, belongs to the hot forming processing technology of the indirect cooling workpiece of liquid.Meanwhile, the sealing of fluid loop is also industrial difficult point, once leak the destabilizing factor that becomes production, affects the quality of workpiece, even scraps and stops production.
Utility model content
The utility model is for prior art above shortcomings, the direct heat of cooling shaping dies of a kind of gas based on boron steel steel plate is proposed, both can by mould punching, workpiece be shaped smoothly at shaping stage, can realize the direct cooling workpiece of refrigerating gas at pressurize cooling stage again.
The utility model is achieved through the following technical solutions, and the utility model comprises: upper die and lower die and be arranged at upper die and lower die contact surface semi-open cooling airway.
Described upper die and lower die form by several plane domains, salient angle region and corresponding re-entrant angle region, wherein: the profile in salient angle region is set to and the identical shape of product design to be formed; The surface in re-entrant angle region is provided with some the semi-open cooling airway that are interconnected.
The head end of described semi-open cooling airway is connected with the refrigerating gas interface of hot forming tool respectively with end, the entrance end of this refrigerating gas interface is connected to realize the circulation of refrigerating gas with gas circulating compressor, or the entrance point of refrigerating gas interface is connected with cold gas body source and the port of export and the atmosphere of refrigerating gas interface pass to direct discharge refrigerating gas mutually.
Described refrigerating gas is normal temperature or low temperature compression air, compressed nitrogen or compression arbon dioxide.
Described semi-open cooling airway is preferably disposed in the plane domain of counterdie and the plane domain of re-entrant angle region and patrix and re-entrant angle region.
Technique effect
Compared with prior art, the utility model advantage comprises:
1) core of the present utility model is: making full use of component shaping is this rule that mould salient angle is shaped, re-entrant angle does not play shaping effect, in mould re-entrant angle region, arrange cooling gas passage, neither affect the shaping of workpiece, can realize refrigerating gas again and the direct of workpiece contacts, thereby realize, be shaped, coolingly once complete.
2) the utility model is integrated into a station realization by component shaping and the direct Cooling Quenching of refrigerating gas.In prior art, there is the technique of direct cooling boron steel steel plate workpiece such as using cooling water, oil, compression refrigerating gas, but must, after component shaping, beyond forming station, increase a station and be equipped with different operating modes, frock and equipment and realize.
3) the direct cooling workpiece of refrigerating gas, cooling effectiveness is high.In prior art, there is the indirect cooling workpiece of mould steel that uses internal placement cooling water, can realize component shaping and Cooling Quenching completes at a station, but cooling water can not direct cooling workpiece, heat conducts by mould steel, cooling efficiency is not the efficiency of supply that depends on cooling water conventionally, but depends on the heat transfer efficiency of mould steel.Use this technique, can effectively improve cooling effectiveness.
4) the utility model can be used in conjunction with the indirect cooling technology of the indirect cooling workpiece of existing mold steel.On a specific workpiece, below several situations be difficult to realize evenly cooling:
I) product geometric properties is complicated, and indirect cooling water road is difficult to evenly arrange, and even occurs cooling dead angle;
Ii) product is clad steel plate (Patch-work), in a certain region, is two-layered steel plates, by spot welding, links together.This region is owing to being double-layer plate, and tradition indirectly cooling method cooling effectiveness is difficult to accomplish consistent with other regions;
Iii) product is laser assembly solder plate (Tailored Welded Blank), and plate itself is formed by the plate with laser welding of two or more different-thickness.Zones of different is because thickness is different, and tradition indirectly cooling method cooling effectiveness is difficult to accomplish consistent with other regions;
Iv) product is not for waiting material slab (Tailored Rolled Blank), and plate itself is rolled into the steel plate of two or more different-thickness by special cold-rolling process.Zones of different is because thickness is different, and tradition indirectly cooling method cooling effectiveness is difficult to accomplish consistent with other regions;
In above situation, according to actual needs, zones of different can freely select refrigerating gas directly cooling or the direct cooling combination of refrigerating gas is indirectly cooling, mutually supplements, and reaches evenly cooling, the object of simultaneously enhancing productivity.
Accompanying drawing explanation
Fig. 1 is existing hot forming technology schematic diagram;
In figure: a is for adding post forming; B is by pressurize quench cooled; C is die quenching cooling die schematic diagram.
Fig. 2 is mould structure sectional schematic diagram of the present utility model;
In figure: patrix 1, counterdie 2, product workpiece 3, re-entrant angle region 4, salient angle region 5, semi-open cooling airway 6, plane domain 7, seal indirect coolant channels 8.
Fig. 3 is embodiment mould structure schematic diagram.
Fig. 4 is semi-open cooling airway schematic diagram in embodiment;
In figure: a is circular groove structure, b is inverted trapezoidal structure, and c is rectangular recess structure, and d is circular arc and rectangle or trapezoidal combining structure.
The specific embodiment
Below embodiment of the present utility model is elaborated; the present embodiment is implemented take technical solutions of the utility model under prerequisite; provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 2, the present embodiment comprises: patrix 1, counterdie 2 and be arranged at patrix 1 and counterdie 2 contact surface semi-open cooling airway 6.
The head end of described semi-open cooling airway 6 is connected with the refrigerating gas interface of hot forming tool respectively with end, and this cooled gas path is unified is D6 semi-circular recesses, and groove center distance is unified is 12mm; The entrance end of refrigerating gas interface and 150T thermoforming special pressure machine are connected to realize the circulation of refrigerating gas, provide 4 groups of common industrial air cooling sources of the gas, i.e. normal temperature or low temperature compression air, compressed nitrogen or compression arbon dioxide; The initial temperature of every group be 20C or-18C, flow is 1000g/ minute, rated power is 7.5KW.
In another embodiment, also the entrance point of refrigerating gas interface can be connected with cold gas body source and the port of export and the atmosphere of refrigerating gas interface pass to direct discharge refrigerating gas mutually.
Workpiece is the thick boron steel steel plate of 1.5mm, length 1000mm, and cross-sectional width 150mm, corner fillet is unified is R9,60 ℃ of drafting angles, i.e. arc length 9.42mm.
According to the feature of product workpiece 6, formed salient angle 2 and re-entrant angle 3 separately, and relevant range 4.In hot forming process, due to the existence of salient angle 2, can guarantee that workpiece is shaped according to product design; Pressurize cooling stage, serial cooling airway 3, the 4 supply refrigerating gases of arranging, directly carry out cooling to workpiece.
As shown in Figure 3, the utility model and traditional indirect cooling method can be used in conjunction with, when the surface of hot forming tool arranges semi-open cooling airway, the indirect coolant channels 8 of sealing is set, further to improve the cooling effect of mould for difformity object in the inside of hot forming tool.
As shown in Figure 4, for meeting, calculate required refrigerating gas road flow, semi-open cooling airway can have different cross sections as required, both can be that (Fig. 4 a) for circular groove structure, also can be inverted trapezoidal (Fig. 4 b) or rectangular recess (Fig. 4 c) structure, can also be circular arc and rectangle or trapezoidal combining structure (Fig. 4 d), according to the variation of product, cooling needs, the convenience of processing and manufacturing etc., do appropriateness adjustment completely.
Claims (10)
1. the direct heat of cooling shaping dies of the gas based on boron steel steel plate, is characterized in that, comprising: upper die and lower die and be arranged at upper die and lower die contact surface semi-open cooling airway.
2. hot forming tool according to claim 1, is characterized in that, described upper die and lower die form by several plane domains, salient angle region and corresponding re-entrant angle region.
3. hot forming tool according to claim 1, is characterized in that, described semi-open cooling airway is arranged at respectively in the plane domain of counterdie and the plane domain of re-entrant angle region and patrix and re-entrant angle region.
4. according to the hot forming tool described in claim 2 or 3, it is characterized in that, the profile in described salient angle region is set to and the identical shape of product design to be formed.
5. according to the hot forming tool described in claim 2 or 3, it is characterized in that, the surface in described re-entrant angle region is provided with some the semi-open cooling airway that are interconnected.
6. according to the hot forming tool described in claim 1 or 2 or 3, it is characterized in that, the head end of described semi-open cooling airway is connected with the refrigerating gas interface of hot forming tool respectively with end, the entrance end of this refrigerating gas interface is connected to realize the circulation of refrigerating gas with gas circulating compressor, or the entrance point of refrigerating gas interface is connected with cold gas body source and the port of export and the atmosphere of refrigerating gas interface pass to direct discharge refrigerating gas mutually.
7. hot forming tool according to claim 1 and 2, is characterized in that, described semi-open cooling airway is arranged in the plane domain of counterdie and the plane domain of re-entrant angle region and patrix and re-entrant angle region.
8. hot forming tool according to claim 1, is characterized in that, the inside of described hot forming tool is provided with the indirect coolant channels of sealing.
9. hot forming tool according to claim 1, is characterized in that, described refrigerating gas is normal temperature or low temperature compression air, compressed nitrogen or compression arbon dioxide.
10. hot forming tool according to claim 1, is characterized in that, the cross section of described semi-open cooling airway is circular groove structure, inverted trapezoidal groove structure, rectangular recess structure or its combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320445831.0U CN203417995U (en) | 2013-07-24 | 2013-07-24 | Gas direct cooling thermal forming die based on boron steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320445831.0U CN203417995U (en) | 2013-07-24 | 2013-07-24 | Gas direct cooling thermal forming die based on boron steel plate |
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| Publication Number | Publication Date |
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| CN203417995U true CN203417995U (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320445831.0U Expired - Fee Related CN203417995U (en) | 2013-07-24 | 2013-07-24 | Gas direct cooling thermal forming die based on boron steel plate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001269A (en) * | 2016-06-22 | 2016-10-12 | 苏州天朋精密元器件有限公司 | Multifunctional stamping die |
| CN106001270A (en) * | 2016-06-22 | 2016-10-12 | 苏州天朋精密元器件有限公司 | Automatic cooling stamping die |
| CN106001231A (en) * | 2015-03-26 | 2016-10-12 | 维巴模具制造有限公司 | Process and device for producing a partially hardened formed part |
| CN108422154A (en) * | 2018-02-23 | 2018-08-21 | 河南宏源车轮股份有限公司 | A kind of Wheel retainer ring processing method and cold stamping die |
-
2013
- 2013-07-24 CN CN201320445831.0U patent/CN203417995U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001231A (en) * | 2015-03-26 | 2016-10-12 | 维巴模具制造有限公司 | Process and device for producing a partially hardened formed part |
| US10584395B2 (en) | 2015-03-26 | 2020-03-10 | Weba Werkzeugbau Betriebs Gmbh | Producing a partially hardened formed part |
| US11555224B2 (en) | 2015-03-26 | 2023-01-17 | Weba Werkzeugbau Betriebs Gmbh | Producing a partially hardened formed part |
| CN106001269A (en) * | 2016-06-22 | 2016-10-12 | 苏州天朋精密元器件有限公司 | Multifunctional stamping die |
| CN106001270A (en) * | 2016-06-22 | 2016-10-12 | 苏州天朋精密元器件有限公司 | Automatic cooling stamping die |
| CN108422154A (en) * | 2018-02-23 | 2018-08-21 | 河南宏源车轮股份有限公司 | A kind of Wheel retainer ring processing method and cold stamping die |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20160724 |
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| CF01 | Termination of patent right due to non-payment of annual fee |