Hydraulic forming device for parts

Abstract

The utility model relates to the technical field of part production, and discloses a part hydraulic forming device which comprises a fixing frame, a die body fixedly arranged in the middle of the fixing frame, a top die arranged at the top of the die body, a bottom die arranged at the bottom of the die body, a first hydraulic cylinder fixedly arranged at the top of the fixing frame, and a piston rod tail end of the first hydraulic cylinder fixedly connected with the top die. A second hydraulic cylinder is fixedly arranged at the bottom of the fixing frame. The tail end of a piston rod of the second hydraulic cylinder is fixedly connected with the bottom die. A forming pressing plate extending into the mold body is fixedly arranged at the bottom of the top mold, an air overflowing groove is formed in the lower surface of the forming pressing plate, and an elastic receding mechanism is arranged in the air overflowing groove. An air blowing cooling mechanism is arranged in the fixing frame and located below the bottom die. According to the utility model, the air overflow groove is arranged, so that a storage space can be provided for air in a forming material and redundant forming materials, the forming quality of parts is improved, and meanwhile, the air blowing cooling function is realized, and the forming efficiency of the parts is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of parts production, in particular to a hydraulic forming device for parts. Background Art

[0002] As a widely used advanced lightweight flexible forming technology, hydraulic forming technology is the core technology for processing and manufacturing thin-walled components with special cross-sections. It can be used for the precise forming of typical parts in the automotive and aerospace fields, which can greatly reduce the overall structural weight, improve the strength and rigidity of parts, reduce the number of parts and molds, and reduce production costs.

[0003] For example, patent number CN216441470U discloses a hydraulic forming device for a part, including an upper die, a lower die and a seal.

[0004] In the above scheme, the molding material is poured into the upper mold and the lower mold, and the upper mold and the lower mold will squeeze the molding material during the matching process. Since there is gas inside the mold, the upper mold and the lower mold are easy to press the gas into the material when they are matched, which leads to the quality of the molded parts being reduced; in addition, the parts need to be taken out manually after molding, and since the gap between the parts and the mold is small, it is inconvenient to take them out, and it will cause certain damage to the parts. For this reason, a hydraulic forming device for parts is proposed. Utility Model Content

[0005] The utility model aims to solve the problems raised by the background technology and proposes a hydraulic forming device for parts.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A hydraulic forming device for parts comprises a fixed frame, a mold body is fixedly provided in the middle part of the fixed frame, a top mold is provided on the top of the mold body, a bottom mold is provided on the bottom of the mold body, a first hydraulic cylinder is fixedly provided on the top of the fixed frame, a piston rod end of the first hydraulic cylinder is fixedly connected to the top mold, a second hydraulic cylinder is fixedly provided on the bottom of the fixed frame, a piston rod end of the second hydraulic cylinder is fixedly connected to the bottom mold; a forming pressure plate extending to the inside of the mold body is fixedly provided at the bottom of the top mold, an overflow groove is provided on the lower surface of the forming pressure plate, an elastic retreat mechanism is provided inside the overflow groove, the elastic retreat mechanism comprises a retreat plate and a spring, the retreat plate is slidably provided inside the overflow groove, the spring is located inside the overflow groove, and two ends of the spring are respectively fixedly connected to the overflow groove and the retreat plate; an air blowing cooling mechanism is provided inside the fixed frame and below the bottom mold.

[0008] Preferably, the lower surface of the retreat plate is flush with the lower surface of the forming platen.

[0009] Preferably, the top mold and the bottom mold both adopt a T-shaped structure, and the top mold and the bottom mold are respectively clamped and arranged on the top and bottom of the mold body.

[0010] Preferably, the air blowing cooling mechanism includes a fan and an annular air plate, the fan is fixedly installed on the bottom of the fixed frame, the annular air plate is fixedly arranged inside the fixed frame, the annular air plate adopts a hollow structure, and the inner side wall of the annular air plate is provided with a plurality of evenly distributed air blowing holes, and the output end of the fan is fixedly provided with an air pipe connected to the bottom of the annular air plate.

[0011] Preferably, the inner diameter of the annular air plate is larger than the diameter of the bottom mold.

[0012] Preferably, the annular air plate is fixed to the fixing frame by welding.

[0013] Preferably, a supporting foot for lifting the second hydraulic cylinder is fixedly provided at the bottom of the fixing frame.

[0014] Preferably, the first hydraulic cylinder and the second hydraulic cylinder are both controlled by independent switches.

[0015] Compared with the prior art, the utility model provides a hydraulic forming device for parts, which has the following beneficial effects:

[0016] 1. The hydraulic forming device of the part, through the overflow groove arranged on the forming plate, allows the gas to enter the overflow groove during the process of pressing the forming material, and can provide storage space for the gas to prevent the gas from entering the interior of the forming material, thereby improving the quality of part forming.

[0017] 2. The hydraulic forming device of the part is equipped with a spring and a retreat plate. If excess molding material is poured into the mold, the excess material will squeeze the retreat plate, causing the retreat plate to compress the spring, thereby providing space for the molding material to retreat.

[0018] 3. The hydraulic forming device of the part is provided with a first hydraulic cylinder and a second hydraulic cylinder. The first hydraulic cylinder can be retracted to remove the top mold from the top of the mold body, and the second hydraulic cylinder can be retracted to remove the bottom mold from the bottom of the mold body, so that the parts formed inside the mold can be automatically removed without manual removal.

[0019] 4. The hydraulic forming device of the part is equipped with a fan, annular air plate, blowing holes and air pipe. The fan can blow gas into the inside of the annular air plate, and then blow the gas evenly to the center of the annular air plate through the blowing holes, so that the parts can be blown and cooled after being taken out, thereby improving the forming efficiency of the parts.

[0020] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model not only has an overflow groove, which can provide storage space for the gas inside the molding material and for the excess molding material, thereby improving the molding quality of the parts, but also has the function of blowing cooling, thereby improving the molding efficiency of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the hydraulic forming device of the parts proposed by the utility model;

[0022] Figure 2 for Figure 1 A magnified view of the structure of the local A part;

[0023] Figure 3 for Figure 1 Top view of the middle annular wind plate.

[0024] In the figure: 1. fixed frame; 2. mold body; 3. top mold; 4. bottom mold; 5. first hydraulic cylinder; 6. second hydraulic cylinder; 7. forming pressure plate; 8. overflow groove; 9. spring; 10. retreat plate; 11. fan; 12. annular air plate; 13. blowing hole; 14. air pipe; 15. supporting foot. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] Example 1

[0028] Reference Figure 1The hydraulic forming device of the part comprises a fixed frame 1, a mold body 2 is fixedly arranged in the middle of the fixed frame 1, a top mold 3 is arranged on the top of the mold body 2, and a bottom mold 4 is arranged on the bottom of the mold body 2. The top mold 3 and the bottom mold 4 both adopt a T-shaped structure, and the top mold 3 and the bottom mold 4 are respectively clamped and arranged on the top and bottom of the mold body 2, so as to ensure that the top and the bottom of the mold body 2 are sealed and clamped. A first hydraulic cylinder 5 is fixedly arranged on the top of the fixed frame 1, and the end of the piston rod of the first hydraulic cylinder 5 is fixedly connected to the top mold 3. A second hydraulic cylinder 6 is fixedly arranged on the bottom of the fixed frame 1, and the end of the piston rod of the second hydraulic cylinder 6 is connected to the bottom mold 4. The fixed connection is that a supporting foot 15 for lifting the second hydraulic cylinder 6 is fixedly provided at the bottom of the fixed frame 1, so as to prevent the bottom of the second hydraulic cylinder 6 from contacting the ground. The first hydraulic cylinder 5 and the second hydraulic cylinder 6 are both controlled by independent switches. The first hydraulic cylinder 5 and the second hydraulic cylinder 6 work first. The first hydraulic cylinder 5 retracts to remove the top mold 3 from the top of the mold body 2. The second hydraulic cylinder 6 extends to make the bottom mold 4 contact with the bottom of the mold body 2, and then pour the molding material into the interior of the mold body 1. Finally, the first hydraulic cylinder 5 is controlled to extend so that the top mold 3 is buckled on the top of the mold body 2 and the hydraulic molding is completed.

[0029] Example 2

[0030] Reference Figure 1-2 The bottom of the top mold 3 is fixedly provided with a molding plate 7 extending to the interior of the mold body 2, and an overflow groove 8 is opened on the lower surface of the molding plate 7. An elastic retreat mechanism is arranged inside the overflow groove 8. The elastic retreat mechanism includes a retreat plate 10 and a spring 9. The retreat plate 10 is slidably arranged inside the overflow groove 8, and the spring 9 is located inside the overflow groove 8, and the two ends of the spring 9 are respectively fixedly connected to the overflow groove 8 and the retreat plate 10. The lower surface of the retreat plate 10 is arranged flush with the lower surface of the molding plate 7. In the process of completing the compression molding of the molding material, the gas can enter the interior of the overflow groove 8, which can provide storage space for the gas and prevent the gas from entering the interior of the molding material, thereby improving the quality of part molding. If excess molding material is poured into the mold, the excess material will squeeze the retreat plate 10, so that the retreat plate 10 compresses the spring 9, thereby providing retreat space for the molding material.

[0031] Example 3

[0032] Reference Figure 1 and 3A blowing cooling mechanism is provided inside the fixing frame 1 and below the bottom mold 4. The blowing cooling mechanism includes a fan 11 and an annular air plate 12. The fan 11 is fixedly installed at the bottom of the fixing frame 1, and the annular air plate 12 is fixedly arranged inside the fixing frame 1. The annular air plate 12 adopts a hollow structure, and a plurality of evenly distributed blowing holes 13 are provided on the inner side wall of the annular air plate 12. An air pipe 14 connected to the bottom of the annular air plate 12 is fixedly provided at the output end of the fan 11. The inner diameter of the annular air plate 12 is larger than the diameter of the bottom mold 4. The annular air plate 12 is fixed to the fixing frame 1 by welding. When the fan 11 is working, gas can be blown into the inside of the annular air plate 12, and then the gas is evenly blown to the center of the annular air plate 12 through the blowing holes 13, so that the parts taken out can be blown and cooled, thereby improving the molding efficiency of the parts.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic forming device for a part, comprising a fixing frame (1), characterized in that: A mold body (2) is fixedly provided in the middle of the fixed frame (1), a top mold (3) is provided at the top of the mold body (2), a bottom mold (4) is provided at the bottom of the mold body (2), a first hydraulic cylinder (5) is fixedly provided at the top of the fixed frame (1), the end of the piston rod of the first hydraulic cylinder (5) is fixedly connected to the top mold (3), and a second hydraulic cylinder (6) is fixedly provided at the bottom of the fixed frame (1), the end of the piston rod of the second hydraulic cylinder (6) is fixedly connected to the bottom mold (4); A forming press plate (7) extending into the interior of the mold body (2) is fixedly provided at the bottom of the top mold (3); an overflow groove (8) is provided on the lower surface of the forming press plate (7); an elastic retreat mechanism is provided inside the overflow groove (8); the elastic retreat mechanism comprises a retreat plate (10) and a spring (9); the retreat plate (10) is slidably arranged inside the overflow groove (8); the spring (9) is located inside the overflow groove (8), and the two ends of the spring (9) are fixedly connected to the overflow groove (8) and the retreat plate (10) respectively; An air blowing cooling mechanism is provided inside the fixing frame (1) and below the bottom mold (4).

2. The hydraulic forming device for parts according to claim 1, characterized in that: The lower surface of the retreat plate (10) is arranged flush with the lower surface of the forming press plate (7).

3. The hydraulic forming device for parts according to claim 1, characterized in that: The top mold (3) and the bottom mold (4) both adopt a T-shaped structure, and the top mold (3) and the bottom mold (4) are respectively clamped and arranged on the top and bottom of the mold body (2).

4. The hydraulic forming device for parts according to claim 1, characterized in that: The air blowing cooling mechanism comprises a fan (11) and an annular air plate (12); the fan (11) is fixedly mounted on the bottom of a fixing frame (1); the annular air plate (12) is fixedly arranged inside the fixing frame (1); the annular air plate (12) has a hollow structure, and a plurality of evenly distributed air blowing holes (13) are provided on the inner side wall of the annular air plate (12); and an air pipe (14) connected to the bottom of the annular air plate (12) is fixedly arranged at the output end of the fan (11).

5. The hydraulic forming device for parts according to claim 4, characterized in that: The inner diameter of the annular air plate (12) is greater than the diameter of the bottom mold (4).

6. The hydraulic forming device for parts according to claim 4, characterized in that: The annular air plate (12) and the fixing frame (1) are fixed by welding.

7. The hydraulic forming device for parts according to claim 1, characterized in that: A supporting foot (15) for lifting the second hydraulic cylinder (6) is fixedly provided at the bottom of the fixing frame (1).

8. The hydraulic forming device for parts according to claim 1, characterized in that: The first hydraulic cylinder (5) and the second hydraulic cylinder (6) are both controlled by independent switches.

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