Forming die for aircraft drawing parts

Abstract

The utility model discloses a forming die for airplane deep drawing parts. The forming die comprises a lower die base, a cambered surface boss is arranged on the top end face of the lower die base, guide columns are arranged on the left side and the right side of the cambered surface boss, an ejector plate groove is formed in the position, close to the middle, of the top end face of the cambered surface boss, an ejector plate is arranged in the ejector plate groove, a female die is arranged on the top end face of the ejector plate, and the lower die is arranged on the top end face of the female die. An upper die base is arranged above the lower die base, a male die matched with the female die is arranged on the bottom end face of the upper die base, and guide sleeves matched with the guide columns are arranged on the left side and the right side of the male die. The forming die for the airplane deep drawing type parts is reasonable in structural design, deep drawing forming of the parts is achieved through mutual matching of the male die and the part ejecting plate, the part is supported by the part ejecting plate during forming, slow deep drawing forming of the parts is achieved, the success rate is increased through the forming mode, no wrinkle exists in the sunken area of the parts, meanwhile, two parts are formed in one die, and the forming efficiency is improved. And the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a forming die for aircraft drawing parts. Background Art

[0002] Titanium alloy parts are increasingly widely used in modern aircraft. It has the advantages of high strength, good corrosion resistance and good heat resistance. Different from the forming methods of sheet metal cold working of conventional materials, the forming of titanium alloy sheet metal parts needs to be carried out by hot forming under heating conditions. However, when using ordinary dies for forming drawing parts, wrinkles are likely to occur at the straight-edge part of the connection area between the upper die and the lower die after contact, resulting in a very low yield of parts. There is an urgent need for a forming die for aircraft drawing parts. Content of the Utility Model

[0003] The utility model overcomes the deficiencies of the prior art and provides a forming die for aircraft drawing parts.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a forming die for aircraft drawing parts, comprising:

[0005] A lower die base;

[0006] It is characterized in that: an arc-shaped boss is provided on the top end face of the lower die base, guide columns are provided on both the left and right sides of the arc-shaped boss, a ejector plate groove is provided near the middle part on the top end face of the arc-shaped boss, an ejector plate is provided inside the ejector plate groove, a female die is provided on the top end face of the ejector plate, and four cylindrical pins are provided on the arc-shaped boss around the ejector plate groove; an upper die base is provided above the lower die base, a male die matched with the female die is provided on the bottom end face of the upper die base, and guide sleeves matched with the guide columns are provided on both the left and right sides of the male die.

[0007] In the above structure, first positioning holes are provided on both the front and rear sides of the guide column on the right side.

[0008] In the above structure, second positioning holes are provided on both the front and rear sides of the guide sleeve on the right side.

[0009] In the above structure, a first temperature measuring hole is provided on the front side wall of the arc-shaped boss.

[0010] In the above structure, a second temperature measuring hole is provided on the front side wall of the male die.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The forming die structure of the aircraft drawing parts of the present utility model is reasonably designed. The drawing forming of the parts is realized through the mutual cooperation of the punch and the ejector plate. During forming, the ejector plate supports the parts and slowly draws them into shape. This forming method improves the success rate, realizes no wrinkles in the sunken area of the parts, and at the same time realizes two parts in one mold, reducing the labor cost and improving the efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is an exploded structural schematic diagram of a forming die for an aircraft drawing part according to an embodiment of the present utility model;

[0013] Figure 2 is a structural schematic diagram of the lower die base of a forming die for an aircraft drawing part according to an embodiment of the present utility model;

[0014] Figure 3 is a structural schematic diagram of the upper die base of a forming die for an aircraft drawing part according to an embodiment of the present utility model.

[0015] In the figure:

[0016] 1. Lower die base; 2. Arc-shaped convex platform; 3. Guide pillar; 4. Ejector plate groove; 5. Ejector plate; 6. Female die; 7. Cylindrical pin; 8. Upper die base; 9. Punch; 10. Guide sleeve; 11. First positioning hole; 12. Second positioning hole; 13. First temperature measuring hole; 14. Second temperature measuring hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will further describe in detail the specific embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0018] As Figure 1 shown, a forming die for an aircraft drawing part includes:

[0019] Lower die base 1;

[0020] It is characterized in that: an arc-shaped convex platform 2 is provided on the top end surface of the lower die base 1, guide pillars 3 are provided on both the left and right sides of the arc-shaped convex platform 2, an ejector plate groove 4 is provided near the middle part on the top end surface of the arc-shaped convex platform 2, an ejector plate 5 is provided inside the ejector plate groove 4, a female die 6 is provided on the top end surface of the ejector plate 5, and four cylindrical pins 7 are provided on the arc-shaped convex platform 2 around the ejector plate groove 4; an upper die base 8 is provided above the lower die base 1, a punch 9 that cooperates with the female die 6 is provided on the bottom end surface of the upper die base 8, and guide sleeves 10 that cooperate with the guide pillars 3 are provided on both the left and right sides of the punch 9.

[0021] In the above structure, first positioning holes 11 are provided on both the front and rear sides of the guide pillar 3 located on the right side.

[0022] In the above structure, second positioning holes 12 are provided on both the front and rear sides of the guide sleeve 10 located on the right side.

[0023] In the above structure, a first temperature measuring hole 13 is provided on the front side wall of the arc-shaped convex platform 2.

[0024] In the above structure, a second temperature measuring hole 14 is provided on the front side wall of the punch 9.

[0025] When the forming die for aircraft deep-drawing parts of the present utility model is specifically working, the upper die base and the lower die base are closed by two guide pillars, and this forming die is fixed on the platform of the hot forming machine tool. The ejector plate is lifted by the ejector rod to be flush with the top surface of the lower die base. The blank is placed on the lower die base by 4 cylindrical pins. At this time, the upper die base moves downward to tightly press the part, and the part is formed by the deep-drawing effect.

[0026] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A forming die for aircraft deep-drawing parts, comprising: A lower die base (1); It is characterized in that: an arc-shaped boss (2) is provided on the top end face of the lower die base (1), guide pillars (3) are provided on both the left and right sides of the arc-shaped boss (2), a ejector plate groove (4) is provided near the middle part on the top end face of the arc-shaped boss (2), an ejector plate (5) is provided inside the ejector plate groove (4), a female die (6) is provided on the top end face of the ejector plate (5), and four cylindrical pins (7) are provided on the arc-shaped boss (2) around the ejector plate groove (4); an upper die base (8) is provided above the lower die base (1), a male die (9) that cooperates with the female die (6) is provided on the bottom end face of the upper die base (8), and guide sleeves (10) that cooperate with the guide pillars (3) are provided on both the left and right sides of the male die (9).

2. The forming die for aircraft deep-drawing parts according to claim 1, characterized in that: First positioning holes (11) are provided on both the front and rear sides of the guide pillar (3) located on the right side.

3. The forming die for aircraft drawing parts according to claim 1, characterized in that: Second positioning holes (12) are provided on both the front and rear sides of the guide sleeve (10) located on the right side.

4. The forming die for aircraft deep-drawing parts according to claim 1, characterized in that: A first temperature measurement hole (13) is provided on the front side wall of the arc-shaped boss (2).

5. The forming die for aircraft drawing parts according to claim 1, characterized in that: A second temperature measurement hole (14) is provided on the front side wall of the male die (9).

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