CN209006514U

CN209006514U - The molding die of high-strength thin-walled bend pipe

Info

Publication number: CN209006514U
Application number: CN201821591560.9U
Authority: CN
Inventors: 郑利波; 张扣山
Original assignee: Faurecia China Holding Co Ltd
Current assignee: Faurecia China Holding Co Ltd
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2019-06-21
Anticipated expiration: 2028-09-28

Abstract

The utility model provides a kind of molding die of high-strength thin-walled bend pipe, it includes disk-shaped main body, lateral surface along the disk-shaped main body extends outward to form extension, shaping groove is provided on the molding die, and the shaping groove is around the outer surface of the extension and the outer surface of the disk-shaped main body, wherein, several recesses are provided in the shaping groove of the outer surface of the disk-shaped main body, so that the inside of bend pipe to be formed is formed fold by the recess.The molding die of the high-strength thin-walled bend pipe of the utility model is not under the premise of increasing cost, by optimizing mold, when not using mandrel or wrinkle resistant piece, solves the phenomenon that flat on the outside of bend pipe or cracking, produces high-strength thin-walled bend pipe.

Description

The molding die of high-strength thin-walled bend pipe

Technical field

The utility model relates to the molding die field of auto-parts, in particular to a kind of high-strength thin-walled bend pipe at Pattern tool.

Background technique

In auto-parts field, auto industry manufactures related components, such as automobile commonly using bent tube technique Chair framework, exhaust pipe etc..

Particularly, in the molding process of high-strength thin-wall pipe bend pipe centreless, it usually will appear some defects, such as interior Side thickens, and Instability wrinkling or outside are thinned, cracking etc..

For this phenomenon, current main solution is addition mandrel or wrinkle resistant piece of increase.But it can increase in this way Add die cost and cost of labor.

In view of this, skilled person urgently improves the structure of molding die, to overcome above-mentioned technical problem.

Utility model content

The technical problems to be solved in the utility model be in order to overcome in the prior art high-strength thin-walled pipe bend pipe be easy Now thicken, Instability wrinkling or outside be thinned the defects of, a kind of molding die of high-strength thin-walled bend pipe is provided.

The utility model is to solve above-mentioned technical problem by following technical proposals:

A kind of molding die of high-strength thin-walled bend pipe, it is characterized in that, the molding die includes disk-shaped main body, edge The lateral surface of the disk-shaped main body extends outward to form extension, shaping groove is provided on the molding die, and described Shaping groove is around the outer surface of the extension and the outer surface of the disk-shaped main body, wherein is located at described discoid Several recesses are provided in the shaping groove of the outer surface of main body, the inside shape of bend pipe to be formed is made by the recess At fold.

One embodiment according to the present utility model, the inner surface of the shaping groove are in arc surface.

One embodiment according to the present utility model, the distribution of the recess are 90 ° of ranges.

One embodiment according to the present utility model, the depth of the recess are less than or equal to the outer diameter of bend pipe to be formed 10%.

One embodiment according to the present utility model, bending part of the bend pipe to be formed in the shaping groove it is outer Arch face reduction is less than or equal to the thickness 15% of the bend pipe to be formed.

One embodiment according to the present utility model, the opening angle between two neighboring recess are 60 ° -120 °.

One embodiment according to the present utility model, the opening angle between two neighboring recess are 72 °.

One embodiment according to the present utility model, the spacing range between the two neighboring recess be more than or equal to 1.5 times of the facewidth, the facewidth less than or equal to 10 times.

One embodiment according to the present utility model, the spacing between the two neighboring recess are 12mm.

One embodiment according to the present utility model, the extension are integrally formed with the disk-shaped main body.

The positive effect of the utility model is:

The molding die of the high-strength thin-walled bend pipe of the utility model is not under the premise of increasing cost, by optimizing mold, When not using mandrel or wrinkle resistant piece, solves the phenomenon that flat on the outside of bend pipe or cracking, produce high-strength thin-walled bend pipe.

Detailed description of the invention

The above and other feature of the utility model, property and advantage will pass through with reference to the accompanying drawings and examples It describes and becomes apparent, identical appended drawing reference always shows identical feature in the accompanying drawings, in which:

Fig. 1 is the perspective view of the molding die of the high-strength thin-walled bend pipe of the utility model.

Fig. 2 is the top view of the molding die of the high-strength thin-walled bend pipe of the utility model.

Fig. 3 is the left view of the molding die of the high-strength thin-walled bend pipe of the utility model.

Fig. 4 is the cross-sectional view splitted in Fig. 3 along line A-A.

Fig. 5 is the enlarged drawing of part B in Fig. 4.

[appended drawing reference]

Disk-shaped main body 10

Extension 20

Shaping groove 30

Recess 31

Arc surface 32

Specific embodiment

It is practical to this below in conjunction with attached drawing for the above objects, features, and advantages of the utility model can be clearer and more comprehensible Novel specific embodiment elaborates.

The embodiments of the present invention are described with detailed reference to attached drawing now.Now with detailed reference to the excellent of the utility model Embodiment is selected, its example is shown in the drawings.In the case of any possible, will be come in all the appended drawings using identical label Indicate the same or similar part.

In addition, although term used in the utility model is selected from public term, this reality Some terms mentioned in novel specification may be applicant by his or her judgement come selection, and detailed meanings exist Illustrate in the relevant portion of description herein.

Furthermore, it is desirable that not only by used actual terms, and be also to the meaning contained by each term To understand the utility model.

Fig. 1 is the perspective view of the molding die of the high-strength thin-walled bend pipe of the utility model.Fig. 2 is that the utility model is high-intensitive The top view of the molding die of thin-winding pipe.Fig. 3 is the left view of the molding die of the high-strength thin-walled bend pipe of the utility model.Figure 4 be the schematic diagram of internal structure of the molding die of the high-strength thin-walled bend pipe of the utility model.Fig. 5 is the amplification of part B in Fig. 4 Figure.

As shown in Figures 1 to 5, the utility model discloses a kind of molding dies of high-strength thin-walled bend pipe comprising circle Disc-shaped main body 10 extends outward to form extension 20 along the lateral surface of disk-shaped main body 10, is provided on the molding die Type groove 30, and shaping groove 30 is around the outer surface of extension 20 and the outer surface of disk-shaped main body 20.Wherein, it is located at circle It is provided with several recesses 31 in the shaping groove 30 of the outer surface of disc-shaped main body 10, bend pipe to be formed (figure is made by recess 31 In do not show) inside formed fold, extension 20 is preferably integrally formed with disk-shaped main body 10 herein.

Preferably, the inner surface of shaping groove 30 is in preferably arc surface 32.The distribution of recess 31 is 90 ° of ranges. The depth of recess 31 is less than or equal to the 10% of the outer diameter of bend pipe to be formed.

Further, the outer arch face reduction of bending part of the bend pipe to be formed in shaping groove 30 is less than or equal to institute State the thickness 15% of bend pipe to be formed.

It is highly preferred that the opening angle a between two neighboring recess 31 is 60 ° -120 °.For example, adjacent in the present embodiment Opening angle between two recesses 31 is preferably 72 °.

Spacing L range between two neighboring recess 31 is the facewidth X more than or equal to 1.5 times, the tooth less than or equal to 10 times Wide X.For example, use the diameter of bend pipe for 32mm in the present embodiment, tube wall with a thickness of 1.2mm, material selection DP1000, recess 31 opening angle is preferably 72 °, and the spacing between two neighboring recess 31 is 12mm.

It is described according to above structure, forming elbow is carried out using the molding die of the high-strength thin-walled bend pipe of the utility model Afterwards, the fold of certain amount and size is increased on the inside of bend pipe.The molding die of the high-strength thin-walled bend pipe of the utility model exists Traditional rotary table changes rotoflector mold forming face, increases regular concave surface on bending apparatus, makes to present on the inside of bend pipe Regular convex surface, to reach the indehiscent purpose of centreless brake forming.

In conclusion the molding die of the high-strength thin-walled bend pipe of the utility model passes through under the premise of not increasing cost Optimize mold, when not using mandrel or wrinkle resistant piece, solves the phenomenon that flat on the outside of bend pipe or cracking, production is high-intensitive Thin-winding pipe.

Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that These are merely examples, and the protection scope of the utility model is defined by the appended claims.Those skilled in the art Member can make numerous variations or be repaired to these embodiments under the premise of without departing substantially from the principles of the present invention and essence Change, but these change and modification each fall within the protection scope of the utility model.

Claims

1. a kind of molding die of high-strength thin-walled bend pipe, which is characterized in that the molding die includes disk-shaped main body, along institute The lateral surface for stating disk-shaped main body extends outward to form extension, is provided with shaping groove on the molding die, and it is described at Type groove is around the outer surface of the extension and the outer surface of the disk-shaped main body, wherein is located at the discoid master Several recesses are provided in the shaping groove of the outer surface of body, form the inside of bend pipe to be formed by the recess Fold.

2. the molding die of high-strength thin-walled bend pipe as described in claim 1, which is characterized in that the interior table of the shaping groove Face is in arc surface.

3. the molding die of high-strength thin-walled bend pipe as claimed in claim 2, which is characterized in that the distribution of the recess For 90 ° of ranges.

4. the molding die of high-strength thin-walled bend pipe as claimed in claim 3, which is characterized in that the depth of the recess is less than Equal to the 10% of the outer diameter of bend pipe to be formed.

5. the molding die of high-strength thin-walled bend pipe as claimed in claim 4, which is characterized in that the bend pipe to be formed is in institute The outer arch face reduction for stating the bending part in shaping groove is less than or equal to the thickness 15% of the bend pipe to be formed.

6. the molding die of high-strength thin-walled bend pipe as claimed in claim 3, which is characterized in that between two neighboring recess Opening angle is 60 ° -120 °.

7. the molding die of high-strength thin-walled bend pipe as claimed in claim 6, which is characterized in that between two neighboring recess Opening angle is 72 °.

8. the molding die of high-strength thin-walled bend pipe as claimed in claim 3, which is characterized in that the two neighboring recess it Between spacing range be the notch width more than or equal to 1.5 times, the notch width less than or equal to 10 times.

9. the molding die of high-strength thin-walled bend pipe as claimed in claim 8, which is characterized in that the two neighboring recess it Between spacing be 12mm.

10. the molding die of high-strength thin-walled bend pipe as described in any one of claims 1-9, which is characterized in that described to prolong Exhibition portion is integrally formed with the disk-shaped main body.