CN211588187U - A semicircular section punching die for air inlet half shell - Google Patents

Abstract

The utility model belongs to the technical field of the stamping die technique and specifically relates to a die-cut mould of semi-circular cross-section of half shell admits air, including the upper die base, the punch holder, the deburring drift, lean on the sword, the die holder, take off the flitch, the lower bolster, the bottom of upper die base is fixed with the punch holder and takes off the flitch, install two deburring drifts on the punch holder, the deburring drift adopts the pivot to install on the punch holder, be equipped with the spring between two deburring drifts, the top of die holder is fixed with two and leans on sword and lower bolster, two lean on the sword to be located the front side and the rear side of deburring drift respectively, one side that leans on the sword to be close to the deburring drift is equipped with the inclined plane structure, the outside of. Compared with the prior art, the utility model, designed the die-cut mould of semi-circular cross section of half shell admits air, can realize the side cut of product through the deburring drift, and do not need extra slide wedge, reduced manufacturing cost, also reduced the degree of difficulty of repairing the mould.

Description

A semicircular section punching die for air inlet half shell

technical field

The utility model relates to the technical field of punching dies, in particular to a punching die with a semicircular section of an air inlet half shell.

Background technique

The conventional side cutting process requires a two-step process: first side cutting both sides, and then cutting the middle. Side cutting requires a wedge, which is expensive and requires high machining accuracy, making it difficult to repair the mold.

Therefore, it is necessary to design a punching die with a semicircular section for the air inlet half shell, which can complete the side cutting without the need for a wedge, so as to reduce the production cost and the difficulty of die repair.

SUMMARY OF THE INVENTION

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a semicircular section punching die with an air inlet half shell, which can complete the side cutting without a wedge, so as to reduce the production cost and the difficulty of die repair.

In order to achieve the above purpose, the utility model is a semi-circular section punching die with an air inlet half shell, which includes an upper die seat, an upper clamping plate, a trimming punch, a knife, a lower die seat, a stripping plate, and a lower pad. It is characterized in that: the bottom of the upper die base is fixed with an upper clamping plate and a stripping plate, and two trimming punches are installed on the upper clamping plate. There is a spring in between, and the top of the lower die base is fixed with two backing knives and a lower backing plate. There is an inclined surface structure, and the outer side of the trimming punch contacts or separates from the inclined surface structure of the knife.

The bottom left side of the bottom plate is provided with a lower die cutting edge.

Compared with the prior art, the utility model designs a punching die with a semicircular section of the air inlet half shell, the side cutting of the product can be realized by the trimming punch, and no additional wedge is needed, thus reducing the production cost. It also reduces the difficulty of repairing the mold.

Description of drawings

Figure 1 is a structural diagram of the utility model.

Figure 2 is a schematic diagram of the trimming punch of the present invention before punching work.

FIG. 3 is a schematic diagram of the trimming punch of the present invention when it is in contact with the knife.

4 is a schematic diagram of the trimming punch of the present invention during punching work.

Figure 5 is a schematic diagram of the trimming punch of the present invention after punching work.

Detailed ways

The present utility model will now be further described with reference to the accompanying drawings.

Referring to Figure 1, the present utility model is a semi-circular section punching die with an air inlet half shell, including an upper die seat, an upper clamping plate, a trimming punch, a knife, a lower die seat, a stripping plate, and a lower backing plate , the bottom of the upper die base 1 is fixed with an upper clamping plate 2 and a stripping plate 6, and two trimming punches 3 are installed on the upper clamping plate 2. A spring 8 is arranged between the edge punches 3, and two backing knives 4 and a lower backing plate 7 are fixed on the top of the lower die base 5. The two backing knives 4 are respectively located on the front side and the rear side of the trimming punch The side of the knife 4 close to the trimming punch 3 is provided with an inclined surface structure, and the outer side of the trimming punch 3 is in contact with or separated from the inclined surface structure of the knife 4 .

In the present utility model, a lower die cutting edge 11 is provided on the left side of the top of the lower backing plate 7, and the lower die cutting edge 11 cuts off waste materials under the action of a punch.

Referring to FIG. 2 , when the punch press is in the die-opening state of the present invention, the trimming punch 3 is in the unfolded state under the action of the spring 8 .

Referring to FIG. 3 , when the die is working, the punching table surface moves downward, the stripper plate 6 presses the product 10 first, and the trimming punch 3 moves down with the punching table surface, and contacts the inclined surface structure of the knife 4 .

Referring to FIG. 4 , the inserting knife is inserted into the backing knife 4 , and the trimming punch 3 rotates around the rotating shaft 9 under the action of the backing knife 4 . After the trimming punch 3 is rotated to a certain angle, the trimming punch 3 starts to cut the material edge.

Referring to Figure 5, after the side cutting is completed, the table surface of the punch press moves upward. The trimming punch 3 withdraws from the knife 4 and resets under the action of the spring 8 . The product 10 floats, advances one step, and starts the next process.

The utility model designs a punching die with a semicircular section of the air inlet half shell, the side cutting of the product can be realized by the trimming punch, and no additional wedge is needed, thus reducing the production cost and the difficulty of trimming the die. .

Claims (2)

1. The utility model provides a die-cut mould of half semi-circular cross-section of admitting air, includes upper die base, punch holder, deburring drift, leans on sword, die holder, takes off flitch, lower bolster, its characterized in that: the bottom of the upper die base (1) is fixed with an upper clamping plate (2) and a stripper plate (6), two trimming punches (3) are installed on the upper clamping plate (2), the trimming punches (3) are installed on the upper clamping plate (2) through rotating shafts (9), springs (8) are arranged between the two trimming punches (3), two rest knives (4) and a lower backing plate (7) are fixed at the top of the lower die base (5), the two rest knives (4) are respectively located on the front side and the rear side of the trimming punches (3), an inclined plane trimming structure is arranged on one side, close to the trimming punches (3), of the rest knives (4), and the outer sides of the trimming punches (3) are in contact with or separate from the inclined plane structure of the rest knives (4).

2. A semicircular section blanking die for an air intake half shell according to claim 1, wherein: the left side of the top of the lower backing plate (7) is provided with a lower die knife edge (11).

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