CN105665541A - Plate material hot stamping forming and cooling die - Google Patents
Plate material hot stamping forming and cooling die Download PDFInfo
- Publication number
- CN105665541A CN105665541A CN201610042571.0A CN201610042571A CN105665541A CN 105665541 A CN105665541 A CN 105665541A CN 201610042571 A CN201610042571 A CN 201610042571A CN 105665541 A CN105665541 A CN 105665541A
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- Prior art keywords
- cooling
- die
- block
- punch
- contiguous block
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The invention discloses a plate material hot stamping forming and cooling die. The plate material hot stamping forming and cooling die comprises a male die part and a female die part, wherein the male die part comprises a male die holder, a male die connecting block and a male die cooling block, sequentially connected; the female die part comprises a female die cooling block, a female die connecting block and a female die holder, sequentially connected; the lower end surface of the male die cooling block and the upper end surface of the female die cooling block are matched curved surfaces and can be tightly fitted with each other, and a curved surface workpiece is processed between the lower end surface of the male die cooling block and the upper end surface of the female die cooling block; and cooling channels which are distributed extending up and down with the curved surfaces are arranged on both a contact surface between the male die connecting block and the male die cooling block and a contact surface between the female die cooling block and the female die connecting block. The structure is simple and practical. The die and the stamped workpiece in the die are rapidly cooled by the cooling water channels of the die so as to realize a quenching effect, and cooling uniformity is ensured.
Description
Technical field
The present invention relates to stamping Die Design technical field, be specifically related to a kind of suitable in the hot press-formed of curved surface sheet material and cooling mould.
Background technology
Hot press-formed technique is widely used in the fields such as automobile making, for instance it is stamping that current all body of a motor car products are used mostly high strength steel plate, meets and realizes lightweight and improve the requirement of safety. In hot press-formed technique, hot stamping die is used not only for shaping, also to be used for product Cooling Quenching, therefore the design of the cooling system of mould is the key problem of hot stamping die design, the designing quality of cooling system directly influences the cooling effectiveness of mould and the uniformity of cooling, directly determines the success or failure of whole Design of Dies.
In prior art, it is at the directly straight-through cooling water channel of processing in punch and die that the type of cooling in hot stamping die is mainly, in cooling water channel, mould and workpiece are cooled down by water flowing, for shape plane workpiece the existing type of cooling ensure that whole work-piece cools is uniform; But when profile surface workpiece, mould is curved, if still directly designing straight-through cooling water channel in a mold, because the curve form of mould, edge of work position causes that close to cooling water channel this position rate of cooling is fast, and centre cools down slowly farther out from cooling water channel; Thus causing that whole curve surface work pieces inhomogeneous cooling is even, cause that the mechanical property at each position of workpiece is by inconsistent, the performance impact of workpiece is bigger, it is impossible to ensure the safety in workpiece use procedure.
Summary of the invention
In order to solve the problems referred to above, the invention provides that a kind of sheet material is hot press-formed and cooling mould, including convex portions and female mold part, described convex portions includes the convex mould base, punch contiguous block and the punch cooling block that are linked in sequence, and described female mold part includes the die cooling block, die contiguous block and the die socket that are linked in sequence; The upper surface of the lower surface of described punch cooling block and described die cooling block is the curved surface matched, and can mutually fit tightly, and the lower surface of described punch cooling block and the upper surface of described die cooling block are the stamping surface for pressing sheet material;
The lower surface of the upper surface of described punch cooling block and described punch contiguous block fits;The upper surface of described punch cooling block, described punch contiguous block lower surface be the curved surface identical with the lower surface of described punch cooling block; The upper surface of described punch cooling block is provided with some the first punch cooling baths, the lower surface of described punch contiguous block is provided with some the second punch cooling baths, some described first punch cooling baths and the second punch cooling bath form some punch cooling ducts, and described punch cooling duct rises and falls with the lower upper surface of the upper surface of described punch cooling block, described punch contiguous block and extends distribution;
The upper surface of the lower surface of described die cooling block and described die contiguous block fits; The lower surface of described die cooling block, described die contiguous block upper surface be the curved surface identical with the upper surface of described die cooling block; The lower surface of described die cooling block is provided with some the first die cooling baths, the upper surface of described die contiguous block is provided with some the second die cooling baths, some described first die cooling baths and the second die cooling bath form some die cooling ducts, and described die cooling duct rises and falls with the upper surface of the lower surface of described die cooling block, described die contiguous block and extends distribution.
It is preferred that the upper surface of the lower surface of described punch cooling block and described die cooling block is hyperbolic-parabolic.
It is preferred that between described punch cooling block and described punch contiguous block, be attached by screw between described die cooling block and described die contiguous block.
It is preferred that described punch cooling duct and described die cooling duct are circular duct.
It is preferred that carry out antirust treatment in described punch cooling duct and described die cooling duct.
It is preferred that equidistantly uniformly arrangement between some described punch cooling ducts, equidistantly uniformly arrangement between some described die cooling ducts.
Due to the fact that the above technical scheme of employing, so as to compared with prior art, have the following advantages that and good effect:
1) sheet material provided by the invention hot press-formed and cooling mould in, punch cooling duct in convex portions rises and falls with the stamping surface (lower surface of punch cooling block) of convex portions and extends distribution, die cooling duct in female mold part rises and falls with the stamping surface (upper surface of die cooling block) of female mold part and extends distribution, thus it is identical to ensure that punch cooling duct arrives the distance of stamping surface everywhere, the distance that die cooling duct arrives stamping surface everywhere is identical, further ensure that the uniformity that sheet material cools down everywhere, the mechanical property at each position of sheet material will be consistent, more can guarantee that the uniformity of the intensity of sheet material forming and dimensional accuracy,
2) sheet material provided by the invention hot press-formed and cooling mould in, punch cooling duct is to be collectively constituted by the cooling bath on punch cooling block and punch contiguous block, and die cooling duct is to be collectively constituted by the cooling bath on die cooling block and die contiguous block; The present invention adopts the method for piecemeal mould to open cooling water channel, solve the problem that cannot obtain the accurate cooling duct bending tendency on mould one piece complete, ensure that punch cooling duct and die cooling duct arrange the accuracy of position, thus being conducive to improving the uniformity of cooling.
Accompanying drawing explanation
In conjunction with accompanying drawing, by hereafter state detailed description, the above-mentioned and other feature and advantage of the present invention can be more clearly understood that, wherein:
Fig. 1 be sheet material provided by the invention hot press-formed and cooling mould structural representation;
Fig. 2 is the structural representation of convex mould contiguous block of the present invention;
Fig. 3 is the structural representation of convex mould cooling block of the present invention;
Fig. 4 is the structural representation of die cooling block in the present invention;
Fig. 5 is the structural representation of die contiguous block in the present invention.
Symbol description:
1-convex mould base 2-punch contiguous block
21-the second punch cooling bath 3-punch cooling block
31-the first punch cooling bath 4-die cooling block
41-the first die cooling bath 5-die contiguous block
51-the second die cooling bath 6-die socket.
Detailed description of the invention
Referring to the accompanying drawing illustrating the embodiment of the present invention, the present invention is described in more detail. But, the present invention can realize in many different forms, and should not be construed as by restriction of the embodiment of proposition at this. On the contrary, it is proposed to these embodiments are to reach fully and complete disclosure, and make those skilled in the art understand the scope of the present invention completely. In these accompanying drawings, for clarity sake, it is possible to be exaggerated size and the relative size in layer and region.
With reference to Fig. 1-5, hot press-formed for curve surface work pieces, the invention provides that a kind of sheet material is hot press-formed and cooling mould, including convex portions and female mold part, the present invention arranges cooling-water duct the restriction to the shape of cooling-water duct, position in convex portions and female mold part, makes workpiece reach the purpose of rapid quenching by coolant, and ensure that the uniformity that workpiece cools down everywhere, make the intensity of drop stamping workpiece meet requirement; Heat on workpiece relies on conduction of heat to distribute from mould, and the thermal conductivity of mould makes heat be taken away by coolant again.
Concrete, convex portions includes the convex mould base 1, punch contiguous block 2 and the punch cooling block 3 that are linked in sequence, can being linked together by modes such as screws between punch contiguous block 2 and punch cooling block 3, punch contiguous block 2 and punch cooling block 3 collectively constitute punch mold. The lower surface of punch cooling block 3 is curved surface, for instance can being the shapes such as hyperbolic-parabolic, the curve form of punch cooling block 3 lower surface be determined according to the body shape of curve surface work pieces, is not limited as herein; The upper surface of punch cooling block 3 fits tightly with the lower surface of punch contiguous block 2 and is connected, the upper surface of punch cooling block 3, punch contiguous block 2 lower surface be the curved surface identical with the curve form of punch cooling block 3 lower surface, and the lower surface curved surface of punch cooling block 3 lower surface curved surface, the upper surface curved surface of punch cooling block 3, punch contiguous block 2 is parallel to each other.
As shown in Figure 3, the upper surface of punch cooling block 3 is provided with some the first punch cooling baths 31, every the first punch cooling bath 31 is extended to opposite side from the side of the upper surface of punch cooling block 3, and every first punch cooling bath 31 rises and falls with the curved surface of the upper surface of punch cooling block 3 and extends distribution so that on same first punch cooling bath 31, the distance of distance punch cooling block 3 lower surface is identical everywhere; Equidistantly uniformly arrangement between some the first punch cooling baths 31.
As shown in Figure 2, the lower surface of punch contiguous block 2 is provided with some the second punch cooling baths 21, every second punch cooling bath 21 and every first punch cooling bath 31 position one_to_one corresponding; Every the second punch cooling bath 21 is extended to opposite side from the side of the lower surface of punch contiguous block 2, and every second punch cooling bath 21 rises and falls with the curved surface of punch contiguous block 2 lower surface and extends distribution, equidistantly uniformly arrangement between some the second punch cooling baths 31.
After punch contiguous block 2 and punch cooling block 3 link together, together with the lower surface of punch contiguous block 2 fits tightly with the upper surface of punch contiguous block 3, some first punch cooling baths 31 form some punch cooling ducts 7 with some second punch cooling bath 21 one_to_one corresponding, so that the fluctuating tendency of punch cooling duct 7 is consistent with the tendency of punch cooling block 3 lower surface, so that the distance arriving punch cooling block 3 lower surface on every punch cooling duct 7 everywhere is identical. Its convex mould cooling duct 7 can be circular duct, is certainly alternatively duct, direction, is not limited as herein.
In the present embodiment, female mold part includes the die cooling block 4, die contiguous block 5 and the die socket 6 that are linked in sequence, can being linked together by modes such as screws between die cooling block 4 and die contiguous block 5, die contiguous block 5 and die cooling block 4 collectively constitute concave die. The upper surface of die cooling block 3 is curved surface, and the curved surface of the curved surface of die cooling block upper surface and punch cooling block 3 lower surface matches, it is ensured that die cooling block upper surface can fit tightly together when contacting with punch cooling block 3 lower surface; The lower surface of die cooling block 4 fits tightly with the upper surface of die contiguous block 4 and is connected, the lower surface of die cooling block 4, die contiguous block 5 upper surface be the curved surface identical with the curve form of die cooling block 4 upper surface, and the upper surface curved surface of the lower surface curved surface of the upper surface curved surface of die cooling block 4, die cooling block 4, die contiguous block 5 is parallel to each other.
As shown in Figure 4, the lower surface of die cooling block 4 is provided with some the first die cooling baths 41, every the first die cooling bath 41 is extended to opposite side from the side of die cooling block 4 upper surface, and every first die cooling bath 41 rises and falls with the curved surface of the lower surface of die cooling block 4 and extends distribution so that on same first die cooling bath 41, the distance of distance punch cooling block 3 upper surface is identical everywhere; Equidistantly uniformly arrangement between some the first die cooling baths 41.
As shown in Figure 5, the upper surface of die contiguous block 5 is provided with some the second die cooling baths 51, every second die cooling bath 51 and every first die cooling bath 41 position one_to_one corresponding; Every the second die cooling bath 51 is extended to opposite side from the side of the upper surface of die contiguous block 5, and every second die cooling bath 51 rises and falls with the curved surface of die contiguous block 5 upper surface and extends distribution, equidistantly uniformly arrangement between some the second die cooling baths 51.
After die contiguous block 5 and die cooling block 4 link together, together with the upper surface of die contiguous block 5 fits tightly with the lower surface of die contiguous block 4, some first die cooling baths 41 form some die cooling ducts 8 with some second die cooling bath 51 one_to_one corresponding, so that the fluctuating tendency of die cooling duct 8 is consistent with the tendency of die cooling block 4 upper surface, so that the distance arriving die cooling block 4 upper surface on every die cooling duct 8 everywhere is identical. Wherein die cooling duct 8 can be circular duct, is certainly alternatively duct, direction, is not limited as herein.
Hot press-formed with regard to sheet material provided by the invention below and cooling mould operation principle seat further instruction, specific as follows:
In the course of the work, first sheet material heating is reached uniform temperature, rapidly sheet material is fixed on die cooling block 4 upper surface of female mold part, start forcing press and promote convex portions to press down rapidly, the lower surface of punch cooling block 3 is pressed on sheet material so that plate forming completes;Controlling to open valve while molding makes coolant flow rapidly as in punch cooling duct 7 and die cooling duct 8, heat on sheet material relies on and is thermally conducted on convex portions and female mold part, heat on convex portions and female mold part cooled liquid again is taken away, thus playing the effect of fast cooling board material, workpiece is made to reach rapid quenching and form the purpose of martensite by coolant, and ensure that the cooldown rate at least up to 27K/s when martensite is formed, while obtaining required martensitic structure, the intensity of drop stamping workpiece is finally made to meet requirement. Finally, convex portions moves, take out the sheet material of the bending processed.
Wherein, can carrying out antirust treatment in cooling duct (punch cooling duct, die cooling duct), cooling duct can be designed in screwed hole, in order to cooling duct connects with outside coolant circulation system; Coolant preferably adopts cooling water, and cooling water can be recycled, and advantageously reduces cost.
Punch cooling duct in convex mould part of the present invention rises and falls with the stamping surface (lower surface of punch cooling block) of convex portions and extends distribution, die cooling duct in female mold part rises and falls with the stamping surface (upper surface of die cooling block) of female mold part and extends distribution, thus it is identical to ensure that punch cooling duct arrives the distance of stamping surface everywhere, the distance that die cooling duct arrives stamping surface everywhere is identical, further ensure that the uniformity that sheet material cools down everywhere, the mechanical property at each position of sheet material will be consistent, more can guarantee that the uniformity of the intensity of sheet material forming and dimensional accuracy.
And, punch cooling duct is to be collectively constituted by the cooling bath on punch cooling block and punch contiguous block, and die cooling duct is to be collectively constituted by the cooling bath on die cooling block and die contiguous block; The present invention adopts the method for piecemeal mould to open cooling water channel, solve the problem that cannot obtain the accurate cooling duct bending tendency on mould one piece complete, ensure that punch cooling duct and die cooling duct arrange the accuracy of position, thus being conducive to improving the uniformity of cooling.
Those skilled in the art should be understood that the present invention can be implemented without departing from the spirit or scope of itself with other concrete forms many. Although having been described for the case study on implementation of the present invention, it should be understood that the present invention should not be limited to these embodiments, those skilled in the art can change and modifications as made within the spirit and scope of the present invention that appended claims defines.
Claims (6)
1. a sheet material is hot press-formed and cooling mould, it is characterized in that, including convex portions and female mold part, described convex portions includes the convex mould base, punch contiguous block and the punch cooling block that are linked in sequence, and described female mold part includes the die cooling block, die contiguous block and the die socket that are linked in sequence; The upper surface of the lower surface of described punch cooling block and described die cooling block is the curved surface matched, and can mutually fit tightly, and the lower surface of described punch cooling block and the upper surface of described die cooling block are the stamping surface for pressing sheet material;
The lower surface of the upper surface of described punch cooling block and described punch contiguous block fits; The upper surface of described punch cooling block, described punch contiguous block lower surface be the curved surface identical with the lower surface of described punch cooling block; The upper surface of described punch cooling block is provided with some the first punch cooling baths, the lower surface of described punch contiguous block is provided with some the second punch cooling baths, some described first punch cooling baths and the second punch cooling bath form some punch cooling ducts, and described punch cooling duct rises and falls with the lower upper surface of the upper surface of described punch cooling block, described punch contiguous block and extends distribution;
The upper surface of the lower surface of described die cooling block and described die contiguous block fits;The lower surface of described die cooling block, described die contiguous block upper surface be the curved surface identical with the upper surface of described die cooling block; The lower surface of described die cooling block is provided with some the first die cooling baths, the upper surface of described die contiguous block is provided with some the second die cooling baths, some described first die cooling baths and the second die cooling bath form some die cooling ducts, and described die cooling duct rises and falls with the upper surface of the lower surface of described die cooling block, described die contiguous block and extends distribution.
2. sheet material according to claim 1 hot press-formed and cooling mould, it is characterised in that the lower surface of described punch cooling block and the upper surface of described die cooling block are hyperbolic-parabolic.
3. sheet material according to claim 2 hot press-formed and cooling mould, it is characterised in that between described punch cooling block and described punch contiguous block, be attached by screw between described die cooling block and described die contiguous block.
4. sheet material according to claim 1 hot press-formed and cooling mould, it is characterised in that described punch cooling duct and described die cooling duct be circle duct.
5. sheet material according to claim 1 is hot press-formed and cooling mould, it is characterised in that described punch cooling duct and carry out antirust treatment in described die cooling duct.
6. sheet material according to claim 1 is hot press-formed and cooling mould, it is characterised in that equidistantly uniformly arrangement between some described punch cooling ducts, equidistantly uniformly arrangement between some described die cooling ducts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610042571.0A CN105665541A (en) | 2016-01-22 | 2016-01-22 | Plate material hot stamping forming and cooling die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610042571.0A CN105665541A (en) | 2016-01-22 | 2016-01-22 | Plate material hot stamping forming and cooling die |
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| Publication Number | Publication Date |
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| CN105665541A true CN105665541A (en) | 2016-06-15 |
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| CN201610042571.0A Pending CN105665541A (en) | 2016-01-22 | 2016-01-22 | Plate material hot stamping forming and cooling die |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107008809A (en) * | 2017-04-19 | 2017-08-04 | 江苏大学 | A kind of super-high strength steel box part drop stamping cupping tool |
| CN108326144A (en) * | 2018-01-10 | 2018-07-27 | 东风商用车有限公司 | Drive axle end cover hot stamping forming die and manufacturing method thereof |
| CN108421898A (en) * | 2018-04-24 | 2018-08-21 | 大连理工大学 | A kind of female conformal cooling pipe mold of band and its manufacturing method |
| CN108435919A (en) * | 2018-05-22 | 2018-08-24 | 东风汽车集团有限公司 | A kind of method and cooling system obtaining a variety of intensity drop stamping parts |
| CN108723630A (en) * | 2018-06-28 | 2018-11-02 | 二十二冶集团装备制造有限公司 | The production method of helically twisted box |
| CN109909379A (en) * | 2019-03-29 | 2019-06-21 | 重庆大学 | Hot stamping forming die insert structure and its processing method |
| CN113664470A (en) * | 2021-08-20 | 2021-11-19 | 东风(武汉)实业有限公司 | Thermoforming integral door ring based on laser tailor-welded blank and patch board and preparation method thereof |
| CN114347472A (en) * | 2022-01-18 | 2022-04-15 | 杭州埃欧哲建设工程咨询有限公司 | BIM technique building templates 3D printing device |
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| JPH04307207A (en) * | 1991-04-04 | 1992-10-29 | Mitsubishi Heavy Ind Ltd | Mold |
| US6112804A (en) * | 1995-10-31 | 2000-09-05 | Massachusetts Institute Of Technology | Tooling made by solid free form fabrication techniques having enhanced thermal properties |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107008809B (en) * | 2017-04-19 | 2019-01-08 | 江苏大学 | A kind of super-high strength steel box part drop stamping cupping tool |
| CN107008809A (en) * | 2017-04-19 | 2017-08-04 | 江苏大学 | A kind of super-high strength steel box part drop stamping cupping tool |
| CN108326144A (en) * | 2018-01-10 | 2018-07-27 | 东风商用车有限公司 | Drive axle end cover hot stamping forming die and manufacturing method thereof |
| CN108421898A (en) * | 2018-04-24 | 2018-08-21 | 大连理工大学 | A kind of female conformal cooling pipe mold of band and its manufacturing method |
| CN108421898B (en) * | 2018-04-24 | 2024-05-03 | 大连理工大学 | Conformal cooling pipeline mold with internal threads and manufacturing method thereof |
| CN108435919B (en) * | 2018-05-22 | 2023-10-24 | 东风汽车集团有限公司 | Method for obtaining hot stamping parts with various strengths and cooling system |
| CN108435919A (en) * | 2018-05-22 | 2018-08-24 | 东风汽车集团有限公司 | A kind of method and cooling system obtaining a variety of intensity drop stamping parts |
| CN108723630A (en) * | 2018-06-28 | 2018-11-02 | 二十二冶集团装备制造有限公司 | The production method of helically twisted box |
| CN108723630B (en) * | 2018-06-28 | 2021-03-26 | 二十二冶集团装备制造有限公司 | Manufacturing method of spiral twisted box |
| CN109909379A (en) * | 2019-03-29 | 2019-06-21 | 重庆大学 | Hot stamping forming die insert structure and its processing method |
| CN113664470A (en) * | 2021-08-20 | 2021-11-19 | 东风(武汉)实业有限公司 | Thermoforming integral door ring based on laser tailor-welded blank and patch board and preparation method thereof |
| CN114347472A (en) * | 2022-01-18 | 2022-04-15 | 杭州埃欧哲建设工程咨询有限公司 | BIM technique building templates 3D printing device |
| CN114347472B (en) * | 2022-01-18 | 2024-01-12 | 杭州埃欧哲建设工程咨询有限公司 | BIM technical building template 3D printing device |
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