CN201482869U

CN201482869U - Novel drawing mold structure

Info

Publication number: CN201482869U
Application number: CN2009201861820U
Authority: CN
Inventors: 李子章; 吴立军
Original assignee: SAIC Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2009-06-30
Filing date: 2009-06-30
Publication date: 2010-05-26
Anticipated expiration: 2019-06-30

Abstract

The utility model provides a mold structure suitable for the drawing forming of high-intensity steel plates, which is used in the filed of a punching mold. The novel drawing mold structure comprises an upper mold seat (5), a lower mold seat (6), an edge pressing ring (3), a female mold (1), a male mold (2), a movable embedding block (7) and a fixed embedding block (8), wherein a pressing material core (4) and the upper mold seat (5) are made into an elastic connection structure, the male mold (2) and the lower mold seat (6) are fixedly connected, the movable embedding block (7) and the fixed embedding block (8) are arranged on the periphery of the male mold (2), and both the movable embedding block (7) and the fixed embedding block (8) are connected with the lower mold seat (6). After the adoption of the technical scheme, the utility model can reach the goals of improving the forming precision of the high-intensity steel plate parts, further reducing the development and debugging period of the molds and vehicle bodies and reducing a series caused cost and expenses.

Description

A kind of novel drawing die structure

Technical field

The utility model relates to the diel field, in particular, relates to a kind of mould structure that is applicable to the high-strength steel sheet drawing and moulding.

Background technology

The ratio that accounts in body of a motor car exploitation manufacture process along with high-strength steel sheet is more and more higher, strength grade is also more and more higher, because the particularity of high strength steel sheet metal forming, it is traditional that to be applied to general steel plate drawing die structure debugging cycle aspect treatment product resilience, longitudinal wall warpage long, and the stamping parts dimensional accuracy is lower, quality can't be guaranteed, the beam-like part of some crucial high-strength steel sheets particularly, resilience and warpage will increase the cycle of vehicle body debugging and the cycle of mould development greatly.And pass through the research of high-strength steel sheet to the pressure-pad-force shaping characteristic, at the lower pressure-pad-force of moulding initial stage demand, at the higher pressure-pad-force of the final demand of moulding, but the blank holder structure of drawing the class mould of public use at present can't satisfy pressure-pad-force transition gradually from low to high.

The utility model content

Problem to be solved in the utility model is: but a drawing die structure of overlapping pressure variable edge force is provided, its objective is the raising element precision, reduce the construction cycle, save debugging cost.

For solving above technical problem, the technical solution adopted in the utility model is:

The utility model is a kind of novel drawing die structure, comprises upper bolster, die shoe, and blank holder, die, punch, described novel drawing die structure also comprises loose plug, fixedly inserts, described binder core and upper bolster are set to elastic connection structure; Described punch is fixedlyed connected with die shoe; Described loose plug, fixedly inserting is arranged on around the die, and loose plug all is connected with die shoe with fixedly inserting.

Described binder core is arranged in the groove that upper bolster and die constitute, and is connected by flexible member between binder core and the upper bolster, and described binder core is set to protrude in the structure on die surface when flexible member is not stressed.

Described loose plug is connected with die shoe by flexible member at the punch inside part, loose plug connects the function that realizes the jack-up binder at the outside left of punch by the press air-cushion eject-rod, described fixedly inserting is arranged on the centre position of loose plug, and described loose plug is set to protrude in the convex mould surface and the surperficial structure of fixedly inserting when flexible member is not stressed.Described punch and fixedly insert and die shoe between the structure that is set to be fastenedly connected.

Described die, loose plug and fixedly insert, wear-resisting alloy steel material that punch all adopts the high rigidity that obtains through heat treatment.

Adopt the technical solution of the utility model, can obtain following beneficial effect:

The utility model purpose is mainly by new drawing die structure, guarantee the demand of high-strength steel sheet shaping characteristic by the movable blank holder structure of band binder, to reach the formed precision that improves the high-strength steel sheet part, and then the exploitation debugging cycle of shortening mould and vehicle body, reduce a series of cost that it causes.

Description of drawings

Below expressed content of each accompanying drawing of this specification and the mark among the figure are briefly explained:

Fig. 1 is the structural representation of novel drawing die structure described in the utility model;

Fig. 2 is the structural representation of movable blank holder;

Fig. 3 is that moulding initial stage plate is placed on the schematic diagram on the movable binder core;

Fig. 4 begins to work for moulding flexible member in mid-term, improves the schematic diagram of moulding pressure-pad-force;

Fig. 5 moulding is drawn into the schematic diagram at the end final period;

Fig. 6 is the drawing die structure diagram of the described prior art of this specification background technology;

Be labeled as among the figure: 1, die; 2, punch: 3, blank holder; 4, binder core; 5, upper bolster; 6, die shoe; 7, loose plug; 8, fixedly insert; 9, flexible member.

The specific embodiment

Contrast accompanying drawing below, by description to example, to effect and operation principle, the manufacturing process of the mutual alignment between the shape of the specific embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present utility model, technical scheme had more complete, accurate and deep understanding to help those skilled in the art.

The utility model is a kind of novel drawing die structure, comprises upper bolster 5, die shoe 6, blank holder 3, die 1, punch 2, described novel drawing die structure also comprises loose plug 7, fixedly inserts 8, and described binder core 4 is set to elastic connection structure with upper bolster 5; Described punch 2 is fixedlyed connected with die shoe 6; Described loose plug 7, fixedly inserting 8 is arranged on around the die 1, and loose plug 78 all is connected with die shoe 6 with fixedly inserting.

Described binder core 4 is arranged in the groove that upper bolster 5 and die 1 constitute, and is connected by flexible member 9 between binder core 4 and the upper bolster 5, and described binder core 4 is set to protrude in the structure on die 1 surface when flexible member 9 is not stressed.

Described loose plug 7 is connected with die shoe 6 by flexible member 9 at punch 2 inside parts, loose plug 7 connects the function that realizes the jack-up binder at the outside left of punch 2 by the press air-cushion eject-rod, described 8 centre positions that are arranged on loose plug 7 of fixedly inserting, described loose plug 7 is set to protrude in the structure on punch 2 surfaces and 8 surfaces of fixedly inserting when flexible member 9 is not stressed.Described punch 2 and fixedly insert 8 and die shoe 6 between the structure that is set to be fastenedly connected.

Described die 1, loose plug 7 and fixedly insert 8, wear-resisting alloy steel material that punch 2 all adopts the high rigidity that obtains through heat treatment.

In order to solve the problem that exists in the prior art described in this specification background technology, overcome its defective, realize improving element precision, shorten the purpose of debugging the construction cycle and then reducing the mould development expense, the technical scheme that the utility model is taked is: as shown in Figure 2, and movable blank holder 3, binder core 4, upper bolster 5, the die shoe 6 of die 1, punch 2, band binder.

Be connected by flexible member and side pin between the drawing die structure of the movable blank holder of this band binder provided by the utility model, described binder core 4 and upper bolster 5, and by leading between guide plate and the last mould body.

Flexible member 9 be set below the loose plug 7 on the movable blank holder 3 and be fixed on the die shoe 6, loose plug 7 and fixedly insert 8 and punch 2 between adopt the guide plate guiding.For guaranteeing integrally-built security, this movable blank holder is provided with breaker bolt or safe pressing plate, to guarantee the security of mould movable part.Punch 2 and fixedly insert 8 and die shoe 6 between for being fastenedly connected.Through this connected mode, constitute a complete drawing die.

In order to improve the service life of mould, loose plug 7 on the movable blank holder 3 of the die 1 described in the utility model, band binder and fixedly insert 8, punch 2 is wear-resisting alloy steel, and through heat treatment acquisition high rigidity, general material is the forging mold steel, SKD11 etc. for example, through the heat treatment of quenching, lonneal, the hardness of acquisition reaches more than the 62HRC.

Improvement on above-mentioned technology and the mould structure has the development cost of remarkable lifting element precision, shortening mold developing cycle and then reduction mould with respect to the mould structure in the background technology (as shown in Figure 6).

Fig. 1 in this Figure of description has expressed present disclosed use, draws the class mould structure.Fig. 1 drawing and moulding technology comprises die 1, punch 2 and blank holder 3.

Fig. 2 is the structural representation of movable blank holder, comprise loose plug 7, fixedly insert 8, flexible member 9, by to the flexible member of the calculating and setting different size of forming force demand in the forming process satisfying the characteristic curve of briquetting of high-strength steel sheet, thereby reach high-precision part requirement.

What Fig. 3,4,5 represented is the forming process of movable blank holder in the plate shaping process.Specific as follows, cylinder is earlier with loose plug 7 outside jack-up, plate is placed on blank holder loose plug 7 outsides, and patrix moves downward and contact plate, and binder core 4 compresses the plate on the punch profile, under the comprehensive function of loose plug 7, die 1, punch 2, plate is with lower pressure-pad-force moulding, and along with the continuation of patrix descends, but that flexible member begins is stressed to reach the effect of pressure variable edge force, until mould on earth, to guarantee the formed precision of part.

Described binder core 4, upper bolster 5, die shoe 6 can be the material of general hardness, as HT300 etc.;

Described die 1, punch 2, movable blank holder 3 are wear-resisting alloy steel, and through the heat treatment acquisition high rigidity of quenching, as SKD11;

For the side pin is connected, and establish the secure side pin between binder core 4 and the upper bolster 5;

Between punch 2 and the die shoe 6 for being fastenedly connected.

In conjunction with the accompanying drawings the utility model technology has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or design of the present utility model and technical scheme are directly applied to other occasion without improving, all within protection domain of the present utility model.

Claims

1. novel drawing die structure, comprise upper bolster (5), die shoe (6), blank holder (3), die (1), punch (2) is characterized in that: described novel drawing die structure also comprises loose plug (7), fixedly insert (8), described binder core (4) is set to elastic connection structure with upper bolster (5); Described punch (2) is fixedlyed connected with die shoe (6); Described loose plug (7), fixedly insert (8) are arranged on punch (2) all around, and loose plug (7) all is connected with die shoe (6) with fixedly insert (8).

2. according to the described novel drawing die structure of claim 1, it is characterized in that: described binder core (4) is arranged in the groove of upper bolster (5) and die (1) formation, be connected by flexible member (9) between binder core (4) and the upper bolster (5), described binder core (4) is set to protrude in the structure on die (1) surface when flexible member (9) is not stressed.

3. according to the described novel drawing die structure of claim 1, it is characterized in that: described loose plug (7) is connected with die shoe (6) by flexible member (9) at punch (2) inside part, loose plug (7) connects by the press air-cushion eject-rod at the outside left of punch (2), described fixedly insert (8) are arranged on the centre position of loose plug (7), and described loose plug (7) is set to protrude in the structure on punch (2) surface and (8) surface of fixedly inserting when flexible member (9) is not stressed.

4. according to the described novel drawing die structure of claim 1, it is characterized in that: described punch (2) and fixedly insert (8) and die shoe (6) between the structure that is set to be fastenedly connected.

5. according to the described novel drawing die structure of claim 1, it is characterized in that: described die (1), loose plug (7) and fixedly insert (8), punch (2) all adopt the wear-resisting alloy steel material of the high rigidity that obtains through heat treatment.