CN217617186U

CN217617186U - Low-blanking-force punching die for silencer partition plate

Info

Publication number: CN217617186U
Application number: CN202220241380.8U
Authority: CN
Inventors: 沈烨锋; 杨智红
Original assignee: Wuxi Weifu Lida Catalytic Converter Co Ltd
Current assignee: Wuxi Weifu Lida Catalytic Converter Co Ltd
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2022-10-21
Anticipated expiration: 2032-01-28

Abstract

The utility model relates to a low blanking force cut-out press of silencer baffle, it includes cope match-plate pattern, upper padding plate, guide pillar, an upper fixed plate, lower bolster, die board and stripper, the upper padding plate is connected to the lower part of cope match-plate pattern, and the lower part and the upper fixed plate of upper padding plate are connected, be fixed with the guide pillar on the upper padding plate, the fixed lower bolster that is provided with in upper portion of lower bolster, the upper portion of lower bolster is fixed with the die board, the stripper sets up between upper fixed plate and die board, the guide pillar passes in upper fixed plate, stripper, die board and the lower bolster extends to the lower bolster, be provided with first drift and second drift on the upper padding plate, first drift and second drift run through in upper fixed plate and stripper extend to the die board, the length of first drift is less than the length of second drift. The utility model reduces punching force of punching the small holes of the partition board, and can complete production by using a small-tonnage punch press; the stamping noise is reduced; the stamping processing cost is saved.

Description

Low-blanking-force punching die for silencer partition plate

Technical Field

The utility model relates to a mould especially relates to a low blanking force cut-out press of silencer baffle.

Background

In the inner component of the automobile muffler assembly, in order to achieve the silencing effect, hundreds of small holes are usually punched on the component. Due to the large number of small holes, the corresponding punching force is large, and a large-tonnage punching machine is required for production and manufacturing, and huge noise pollution is generated. The novel die structure is invented in order to reduce the blanking force and the stamping noise of parts.

Disclosure of Invention

An object of the utility model is to overcome above-mentioned weak point, provide a low blanking force cut-out press of silencer baffle, its simple structure is convenient for adjust, in the time of the noise reduction, reduction in production cost.

According to the technical scheme provided by the utility model, a low blanking force cut-out press of silencer baffle, including cope match-plate pattern, upper padding plate, guide pillar, an upper fixed plate, lower bolster, cavity die and stripper, the upper padding plate is connected to the lower part of cope match-plate pattern, the lower part and the upper fixed plate of upper padding plate are connected, be fixed with the guide pillar on the upper padding plate, the fixed lower bolster that is provided with in upper portion of lower bolster, the upper portion of lower bolster is fixed with the cavity die, the stripper sets up between upper fixed plate and cavity die, the guide pillar passes in upper fixed plate, stripper, cavity die and lower bolster extend to the lower bolster, be provided with first drift and second drift on the upper padding plate, first drift and second drift pass through in upper fixed plate and the stripper extends to the cavity die, the length of first drift is less than the length of second drift.

As a further improvement of the utility model, the length of the first punch is shorter than the second punch by 2mm.

As a further improvement, the guide post is provided with a guide sleeve.

As a further improvement of the utility model, the first punch is the same as the second punch in structure.

The beneficial effects of the utility model reside in that:

1) The punching force of punching the small holes of the partition plate is reduced, and the production can be finished by using a small-tonnage punching machine;

2) The stamping noise is reduced;

3) The small-tonnage punch press is used for production, so that the punching processing cost is saved.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is an enlarged view of a in fig. 1.

Fig. 3 is a top view of the present invention.

Description of reference numerals: 1. mounting a template; 2. an upper base plate; 3. a guide post; 4. an upper fixing plate; 5. a first punch; 6. a second punch; 7. a lower template; 8. a lower base plate; 9. a guide sleeve; 10. a cavity plate; 11. and (4) a stripper plate.

Detailed Description

The invention will be further described with reference to the embodiments shown in the drawings to which:

as shown in the figure, the punching die with low punching force for the silencer partition plate comprises an upper die plate 1, an upper padding plate 2, a guide pillar 3, an upper fixing plate 4, a lower die plate 7, a lower padding plate 8, a concave die plate 10 and a discharging plate 11, wherein the lower portion of the upper die plate 1 is connected with the upper padding plate 2, the lower portion of the upper padding plate 2 is connected with the upper fixing plate 4, the guide pillar 3 is fixed on the upper padding plate 4, the lower padding plate 8 is fixedly arranged on the upper portion of the lower die plate 7, the concave die plate 10 is fixed on the upper portion of the lower padding plate 8, the discharging plate 11 is arranged between the upper fixing plate 4 and the concave die plate 10, the guide pillar 3 penetrates through the upper fixing plate 4, the discharging plate 11, the concave die plate 10 and the lower padding plate 8 and extends into the lower die plate 7, a first punch 5 and a second punch 6 are arranged on the upper padding plate 2, the first punch 5 and the second punch 6 penetrate through the upper fixing plate 4 and the discharging plate 11 and extend into the concave die plate 10, and the length of the first punch 5 is smaller than that of the second punch 6.

The first punch 5 and the second punch 6 have the same structure; the length of the first punch 5 is 2mm shorter than the second punch 6.

A guide sleeve 9 is arranged on the guide post 3.

The utility model discloses a working process does:

novel scheme structure, as shown in the above-mentioned figure, first drift and second drift are two adjacent drifts, and length is 73 and 75 respectively, and the length difference is 2mm, and the silencer baffle material is SUH 409L, and thickness is 1mm. In the punching process, the upper die continuously descends under the action of the punch press sliding block, and because of the length difference between the adjacent punches, the second punch contacts the surface of the partition plate firstly, and at the moment, the distance between the first punch and the surface of the partition plate is 2mm. The upper die continues to descend by 1mm, and the thickness of the partition plate material is 1mm, so that the second punch completes the punching process, and the distance between the first punch and the surface of the partition plate is 1mm. And the upper die continues to descend, and the first punch contacts the surface of the partition plate to complete the punching process. The whole blanking process is divided into two steps, and after the blanking of the second punch with the length of 75mm is finished, the blanking of the first punch with the length of 73mm is finished. The structure divides a punching process into two steps in the same secondary die, and the blanking force is also correspondingly halved. In the actual process, the original production needs a 160T punching machine, only a 110T punching machine is needed, and the production cost is reduced.

Claims

1. The utility model provides a silencer baffle low blanking force cut-out press, includes cope match-plate pattern (1), upper padding plate (2), guide pillar (3), an upper fixed plate (4), lower bolster (7), lower bolster (8), die board (10) and stripper (11), upper padding plate (2) is connected to the lower part of cope match-plate pattern (1), and the lower part and the upper fixed plate (4) of upper padding plate (2) are connected, be fixed with guide pillar (3) on upper padding plate (2), the upper portion of lower bolster (7) is fixed with lower bolster (8), and the upper portion of lower bolster (8) is fixed with die board (10), stripper (11) set up between upper fixed plate (4) and die board (10), guide pillar (3) pass upper fixed plate (4), stripper (11), die board (10) and lower bolster (8) extend to in lower bolster (7), its characterized in that, be provided with first drift (5) and second drift (6) on upper padding plate (2), first drift (5) and second drift (6) run through the drift (4) and the length of second drift (11) is less than the second drift (6) in stripper (11).

2. A muffler partition low blanking force punching die according to claim 1, characterised in that the length of the first punch (5) is 2mm shorter than the second punch (6).

3. A low blanking force punching die for muffler partitions according to claim 1, characterized in that guide sleeves (9) are provided on the guide posts (3).

4. A muffler partition low blanking force punching die according to claim 1, characterised in that the first punch (5) and the second punch (6) are of the same construction.