A kind of mosaic combined punch

Abstract

The utility model discloses an inlaid combined punch, which at least includes a first punch and a second punch arranged in sequence from bottom to top, wherein the shape of the lower part of the first punch matches the lower part of the annular forging, and the second punch is sleeved on the outer periphery of the upper part of the first punch, and the shape of the second punch matches the upper part of the annular forging. The utility model changes the integral punch into a combined punch, presses the first punch and the second punch in sequence, and the contact area between the punch and the blank is divided into two sections, the upper and lower sections, and the pressure required for stamping is reduced from a maximum of about 4900 tons to 1000 tons, thereby reducing the pressure required in the forming process, greatly reducing the difficulty of blank forming, reducing the difficulty of forging forming, and reducing the dependence on large-tonnage equipment.

Description

Technical Field

[0001] The utility model relates to an inlaid combined punch and belongs to the technical field of aviation forging processing equipment. Background Art

[0002] In the forging process of die forgings, dies and punch tools are often used. The structure of the punch is usually integral. When the contact area between the punch and the blank is too large, the pressure required during the forming process will be relatively large, resulting in difficulty in forming the blank. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an inlaid combined punch to solve the technical problems existing in the above-mentioned prior art.

[0004] The technical solution adopted by the utility model is: an inlaid combined punch, comprising at least a first punch and a second punch arranged in sequence from bottom to top, wherein the outer shape of the lower part of the first punch matches the lower part of the annular forging, and the second punch is sleeved on the outer periphery of the upper part of the first punch, and the outer shape of the second punch matches the upper part of the annular forging.

[0005] Preferably, a step for placing the second punch is provided on the outer side wall of the first punch.

[0006] Preferably, the outer side of the step of the first punch and the outer side of the lower end of the second punch are rounded.

[0007] Preferably, the height of the second punch is one third to one half of the height of the first punch.

[0008] Preferably, the thickness of the second punch is one third to one half of the thickness of the first punch.

[0009] Beneficial effects of the utility model: Compared with the prior art, the utility model changes the integral punch into a combined punch, presses the first punch and the second punch in sequence, and the contact area between the punch and the blank is divided into two sections, the pressure required for stamping is reduced from a maximum of about 4900 tons to 1000 tons, thereby reducing the pressure required in the forming process, greatly reducing the difficulty of blank forming, reducing the difficulty of forging forming, and reducing the dependence on large-tonnage equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of an existing tire mold structure.

[0011] Figure 2 It is a schematic diagram of the use of existing tire molds.

[0012] Figure 3 It is a pressure display diagram during the use of the existing tire mold.

[0013] Figure 4 It is a schematic diagram of the structure of the utility model.

[0014] Figure 5 It is a schematic diagram of the use of the utility model.

[0015] Figure 6 It is a pressure display diagram during the use of the utility model.

[0016] Figure 7 It is a product picture processed by using the utility model.

[0017] The reference numerals in the drawings of the specification include: a tire mold 1 , a blank 2 , an integral punch 3 , a first punch 4 , and a second punch 5 . DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Embodiment 1:

[0020] like Figure 1-Figure 3 As shown, the existing punch is an integral structure, that is, an integral punch 3. The forming process is as follows: assemble the tire mold 1 - put the blank 2 into the tire mold 1 - press the punch from the top into the blank 2 to the bottom - demold. During the forming process, as the punch is continuously pressed down, the contact surface between the punch and the blank 2 also increases, resulting in a gradual increase in pressure. As shown by software simulation, when the punch is fully pressed down to the bottom, the maximum pressure required is about 4900 tons.

[0021] A mosaic combination punch, such as Figure 4-Figure 6 As shown, it includes a first punch 4 and a second punch 5 which are arranged in sequence from bottom to top, the outer shape of the lower part of the first punch 4 matches the lower part of the annular forging, a step for placing the second punch 5 is arranged on the outer wall of the first punch 4, the upper part of the first punch 4 is an annular column, the second punch 5 is also an annular column, the inner diameter of the second punch 5 is equal to the outer diameter of the first punch 4, the second punch 5 is sleeved on the outer periphery of the upper part of the first punch 4, and the outer shape of the second punch 5 matches the upper part of the annular forging; the outer side of the step of the first punch 4 and the outer side of the lower end of the second punch 5 are rounded; the height of the second punch 5 is half of the height of the first punch 4; the thickness of the second punch 5 is half of the thickness of the first punch 4.

[0022] The forming process is as follows: assembling the tire mold 1 - placing the blank 2 - pressing the first punch 4 to the bottom - pressing the second punch 5 - demoulding.

[0023] In this embodiment, the contact area between the punch and the blank 2 is divided into two sections, and the punch is pressed in twice, which greatly reduces the pressure required in the forming process. The software simulation shows that the pressure is reduced to 1000 tons.

[0024] like Figure 7 As shown, after the utility model is put into actual production, the forging forming process is smooth and the product shape and size meet expectations.

[0025] The above description is only a specific implementation method of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present utility model, which should be included in the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims

1. A mosaic combined punch, characterized in that: It at least includes a first punch and a second punch which are arranged in sequence from bottom to top, wherein the shape of the lower part of the first punch matches the lower part of the annular forging, and the second punch is sleeved on the outer periphery of the upper part of the first punch, and the shape of the second punch matches the upper part of the annular forging.

2. The inlaid combination punch according to claim 1, characterized in that: A step for placing the second punch is arranged on the outer side wall of the first punch.

3. The inlaid combination punch according to claim 2, characterized in that: The outer side of the step of the first punch and the outer side of the lower end of the second punch are rounded.

4. The inlaid combination punch according to claim 1, characterized in that: The height of the second punch is one third to one half of the height of the first punch.

5. The inlaid combined punch according to claim 1, characterized in that: The thickness of the second punch is one third to one half of the thickness of the first punch.

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