CN105689491A

CN105689491A - Knife edge structure of passenger car punching die

Info

Publication number: CN105689491A
Application number: CN201610252391.5A
Authority: CN
Inventors: 郭小敏
Original assignee: Wuxi Jixing Auto Acoustic Parts Technology Co Ltd
Current assignee: Wuxi Jixing Auto Acoustic Parts Technology Co Ltd
Priority date: 2016-04-21
Filing date: 2016-04-21
Publication date: 2016-06-22

Abstract

The invention relates to a knife edge structure of a passenger car punching die and belongs to the technical field of passenger car dies. The knife edge structure comprises an upper die body and a lower die body; an upper die body notch is formed in the lower side of the upper die body; an upper die knife edge is arranged in the upper die body notch; a lower die body notch is formed in the upper side of the lower die body, and a lower die knife edge is arranged in the lower die body notch; the upper die knife edge is in interference fit with the lower die knife edge. The knife edge structure provided by the invention is simple, high in strength and hard to abrade and can realize simultaneous product forming and product contour cutting by laterally shearing a product , so that the manufacturing process of the product is reduced, and the production efficiency of the product is improved.

Description

A kind of passenger car punching mold notch structure

Technical field

The present invention relates to a kind of passenger car punching mold notch structure, belong to passenger car technical field of mold。

Background technology

At present, the knife edge structure of passenger car die cutting die touches type for flat, and the flat type edge of a knife that touches is that this structure is applicable to smooth die face, for die-cut most employing high pressure waterjet of precipitous profile by the die-cut product fabric that cuts off of normal direction。

Summary of the invention

It is an object of the invention to overcome above-mentioned weak point, it is provided that a kind of passenger car punching mold notch structure, adopt this structure can excise effective profile of product clout retained product while formed product according to product contour line。

According to technical scheme provided by the invention, a kind of passenger car punching mold notch structure, including upper die body and lower mold body；Have upper die body notch on the downside of described upper die body, in upper die body notch, be provided with the mould edge of a knife；Have lower mold body notch on the upside of lower mold body, in lower mold body notch, be provided with the counterdie edge of a knife；It is interference fit between the described upper mould edge of a knife and the counterdie edge of a knife。

The described upper mould edge of a knife is fixed in upper die body notch；The counterdie edge of a knife is fixed in lower mold body notch。The described upper mould edge of a knife is by being fixedly welded in upper die body notch；The counterdie edge of a knife is by being fixedly welded in lower mold body notch。

Described upper die body notch length is consistent with upper die body length, and width is 6mm, and the degree of depth is 6mm；The length of described lower mold body notch is consistent with lower mold body length, and width is 6mm, and the degree of depth is 6mm。The depth and width of the described upper mould edge of a knife are all consistent with upper die body notch；The degree of depth of the counterdie edge of a knife is consistent with lower mold body notch, and the width of the counterdie edge of a knife is more than the width of lower mold body notch。

The hardness of the described upper mould edge of a knife is more than the hardness of the counterdie edge of a knife。The material of the described upper mould edge of a knife is SKD11, and the material of the counterdie edge of a knife is H13。

Time prepared by inventive die, on upper die body, first first open upper die body notch, then the upper mould edge of a knife is welded on upper die body notch；Described lower mold body is opened lower mold body notch again, the lower mold body edge of a knife is freezed on lower mold body notch；Product fabric defines product and product surplus after upper die body moves down punching press lower mold body。

Beneficial effects of the present invention: present configuration is simple, intensity is high, not easy to wear, by lateral shear product, it may be achieved formed product and cutting products appearance profile carry out, and decrease the manufacturing process of product, improve production efficiency simultaneously。

Accompanying drawing explanation

Fig. 1 is that the present invention works pre-structure schematic diagram。

Fig. 2 is present invention structural representation when working。

Fig. 3 is knife edge structure schematic diagram of the present invention。

Description of reference numerals: 1, upper die body；2, the upper mould edge of a knife；3, product fabric；4, lower mold body；5, the counterdie edge of a knife；6, product；7, product surplus；8, upper die body notch；9, lower mold body notch。

Detailed description of the invention

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described。

As Figure 1-3: a kind of passenger car punching mold notch structure, including upper die body 1 and lower mold body 4；Have upper die body notch 8 on the downside of described upper die body 1, in upper die body notch 8, be provided with the mould edge of a knife 2；Have lower mold body notch 9 on the upside of lower mold body 4, in lower mold body notch 9, be provided with the counterdie edge of a knife 5；It is interference fit between the described upper mould edge of a knife 2 and the counterdie edge of a knife 5。

The described upper mould edge of a knife 2 is fixed in upper die body notch 8；The counterdie edge of a knife 5 is fixed in lower mold body notch 9。The described upper mould edge of a knife 2 is by being fixedly welded in upper die body notch 8；The counterdie edge of a knife 5 is by being fixedly welded in lower mold body notch 9。

Described upper die body notch 8 length is consistent with upper die body 1 length, and width is 6mm, and the degree of depth is 6mm；The length of described lower mold body notch 9 is consistent with lower mold body 4 length, and width is 6mm, and the degree of depth is 6mm。

The depth and width of the described upper mould edge of a knife 2 are all consistent with upper die body notch 8；The degree of depth of the counterdie edge of a knife 5 is consistent with lower mold body notch 9, and the width of the counterdie edge of a knife 5 is more than the width of lower mold body notch 9。The hardness of the described upper mould edge of a knife 2 is more than the hardness of the counterdie edge of a knife 5。

The material of described upper die body 1 and lower mold body 4 is 45#, and the hardness of die body is 28HRC。In order to ensure edge of a knife intensity and service life, the material that performance is good and hardness is high need to be selected in edge of a knife position。

Time prepared by passenger car punching mold notch structure of the present invention, first processing the upper die body notch 8 of a width 6mm, degree of depth 6mm at described upper die body 1 edge of a knife position, be used for the upper mould edge of a knife 2 that freezes, the material of the upper mould edge of a knife 2 is SKD11, and edge of a knife hardness is 55HRC。Put in place according to 3D data mart modeling。

Then processing the lower mold body notch 9 of a width 6mm, degree of depth 6mm at described lower mold body 4 edge of a knife position, be used for the counterdie edge of a knife 5 that freezes, the material of the counterdie edge of a knife is H13, and edge of a knife hardness is 45HRC。The cooperation surplus of 0.05mm is stayed according to 3D data。

The counterdie edge of a knife 5 of the present invention leaves the cooperation surplus of 0.05mm on width when making, make between the mould edge of a knife 2 and the counterdie edge of a knife 5 as interference fit。During work, upper die body 1 and lower mold body 4 are both secured on milling train, and product fabric 3 is between upper die body 1 and lower mold body 4。Owing to the upper mould edge of a knife 2 is higher than the counterdie edge of a knife 5 intensity, anti-wear performance is good, during punch forming upper die body 1 move down die-cut lower mold body 4 time, the upper mould edge of a knife 2 can excise the use level of the reserved 0.05mm of the counterdie edge of a knife 5, make to become interference fits between the mould edge of a knife 2 and the counterdie edge of a knife 5, in guarantee, between the mould edge of a knife 2 and the counterdie edge of a knife 5, zero clearance coordinates, it is thus possible to make fabric successfully cut off, defines product 6 and product surplus 7。

Present configuration is applicable to die-cut class mould and cuts off the product effective profile of fabric retained product, saves follow-up high pressure waterjet operation, it is achieved that formed product and cut-out product profile carry out simultaneously。Decrease production operation, saved the production time, improve production efficiency。

Claims

1. a passenger car punching mold notch structure, is characterized in that: include upper die body (1) and lower mold body (4)；Described upper die body (1) downside has upper die body notch (8), is provided with the upper mould edge of a knife (2) in upper die body notch (8)；Lower mold body (4) upside has lower mold body notch (9), is provided with the counterdie edge of a knife (5) in lower mold body notch (9)；It is interference fit between the described upper mould edge of a knife (2) and the counterdie edge of a knife (5)。

2. passenger car punching mold notch structure as claimed in claim 1, is characterized in that: the described upper mould edge of a knife (2) is fixed in upper die body notch (8)；The counterdie edge of a knife (5) is fixed in lower mold body notch (9)。

3. passenger car punching mold notch structure as claimed in claim 2, is characterized in that: the described upper mould edge of a knife (2) is by being fixedly welded in upper die body notch (8)；The counterdie edge of a knife (5) is by being fixedly welded in lower mold body notch (9)。

4. passenger car punching mold notch structure as claimed in claim 1, is characterized in that: described upper die body notch (8) length is consistent with upper die body (1) length, and width is 6mm, and the degree of depth is 6mm；The length of described lower mold body notch (9) is consistent with lower mold body (4) length, and width is 6mm, and the degree of depth is 6mm。

5. passenger car punching mold notch structure as claimed in claim 1, is characterized in that: the depth and width of the described upper mould edge of a knife (2) are all consistent with upper die body notch (8)；The degree of depth of the counterdie edge of a knife (5) is consistent with lower mold body notch (9), and the width of the counterdie edge of a knife (5) is more than the width of lower mold body notch (9)。

6. passenger car punching mold notch structure as claimed in claim 1, is characterized in that: the hardness of the described upper mould edge of a knife (2) is more than the hardness of the counterdie edge of a knife (5)。

7. passenger car punching mold notch structure as claimed in claim 6, is characterized in that: the material of the described upper mould edge of a knife (2) is SKD11, and the material of the counterdie edge of a knife (5) is H13。