Deep drawing forming device for thin-wall end socket structural member

Abstract

The utility model discloses a deep drawing forming device of a thin-wall end socket structural member, which relates to the technical field of thin-wall end socket structural member processing and comprises a fixed die assembly, a fixed die assembly, a fixed die assembly, a fixed die assembly and a fixed die assembly, the movable die assembly is used for being matched with the fixed die assembly to conduct deep drawing forming on the metal blank; the pressing demolding mechanism comprises a second hydraulic cylinder, a pressing plate, a connecting sliding rod, a limiting block, a bottom plate and a demolding push rod; the second hydraulic cylinder is fixedly arranged at the top of the inner side of the upper fixing frame, the pressing plate is fixedly arranged at the bottom end of an output shaft of the second hydraulic cylinder, and two annular drawing ribs distributed in a concentric circle mode are arranged at the bottom of the pressing plate. According to the utility model, the thin-wall end socket structural member can be prevented from being blocked by the pressing plate when the thin-wall end socket structural member is demoulded, the demoulding difficulty of the thin-wall end socket structural member is reduced, and the demoulding device is more convenient in actual use.

Description

Technical Field

[0001] This utility model relates to the field of thin-walled head structure processing technology, and in particular to a deep drawing forming device for thin-walled head structures. Background Technology

[0002] The integral forming process of large pressure vessel heads is a common manufacturing process. This process utilizes the plasticity of metals to process and shape metal blanks under the action of molds and forming equipment.

[0003] A search revealed that utility model patent CN218109005U discloses a deep drawing forming device for thin-walled end cap structures, including a punch fixed below a moving template, the moving template being controlled radially by an electric push cylinder mounted on a forming device frame; and a die fitted below the punch, with through holes on the die for inserting several ejector pins, the bottom of which is fixed to a fixed template, a sliding ring fixedly connected above the fixed template, the upper end of which extends into the die, and an electric push rod fixedly connected above the fixed template, one end of which is fixed to the die.

[0004] Although the above-mentioned device can complete the deep drawing of thin-walled head structure, it is difficult to remove the thin-walled head structure after demolding because the pressure plate will adhere to the top of the thin-walled head structure and the drawing ribs under the pressure plate will be covered by the thin-walled head structure. Therefore, it is very inconvenient to demold the thin-walled head structure.

[0005] Therefore, it is necessary to invent a deep drawing forming device for thin-walled head structures to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a deep drawing forming device for thin-walled head structures, which can avoid the clamping plate obstructing the thin-walled head structure during demolding, reduce the difficulty of demolding the thin-walled head structure, and make it more convenient in actual use. This solves the problem mentioned in the background art that when demolding the formed thin-walled head structure, the pressure plate will adhere to the top of the thin-walled head structure and the drawing ribs below the pressure plate will be covered by the thin-walled head structure, making it difficult to remove the thin-walled head structure and inconvenient in actual demolding.

[0007] According to one aspect of this disclosure, the following technical solution is provided: a deep drawing forming apparatus for thin-walled head structural members, comprising:

[0008] A fixed mold assembly, which is used to support a metal blank;

[0009] Moving die assembly, which cooperates with fixed die assembly to perform deep drawing of metal blanks; and

[0010] A pressing and demolding mechanism, comprising a second hydraulic cylinder, a pressing plate, a connecting slide rod, a limiting block, a base plate, and a demolding push rod;

[0011] The second hydraulic cylinder is fixedly mounted on the top inner side of the upper fixed frame. The clamping plate is fixedly mounted on the bottom end of the output shaft of the second hydraulic cylinder. The bottom of the clamping plate is provided with two concentric annular drawing ribs. The connecting slide rod is fixedly mounted on the bottom of the clamping plate. The limiting block is fixedly mounted on the bottom end of the connecting slide rod. The base plate is slidably sleeved on the outside of the limiting block and located above the pad. Multiple demolding push rods are provided. The multiple demolding push rods are evenly fixedly mounted on the top of the base plate and all slide through the die body.

[0012] A deep drawing apparatus for a thin-walled head structure according to at least one embodiment of the present disclosure includes:

[0013] A fixed mold assembly, which is used to support a metal blank;

[0014] Moving die assembly, which cooperates with fixed die assembly to perform deep drawing of metal blanks; and

[0015] A pressing and demolding mechanism, comprising a second hydraulic cylinder, a pressing plate, a connecting slide rod, a limiting block, a base plate, and a demolding push rod;

[0016] The second hydraulic cylinder is fixedly mounted on the top inner side of the upper fixed frame. The clamping plate is fixedly mounted on the bottom end of the output shaft of the second hydraulic cylinder. The bottom of the clamping plate is provided with two concentric annular drawing ribs. The connecting slide rod is fixedly mounted on the bottom of the clamping plate. The limiting block is fixedly mounted on the bottom end of the connecting slide rod. The base plate is slidably sleeved on the outside of the limiting block and located above the pad. Multiple demolding push rods are provided. The multiple demolding push rods are evenly fixedly mounted on the top of the base plate and all slide through the die body.

[0017] According to at least one embodiment of the present disclosure, a deep drawing apparatus for a thin-walled head structure includes a fixed mold assembly further comprising a die body, the die body being fixedly disposed at the top of the lower fixed frame and located directly above the pad, and the top of the die body having two concentrically distributed pressing grooves.

[0018] According to at least one embodiment of the present disclosure, a deep drawing apparatus for a thin-walled head structure includes a fixed mold assembly further comprising a die body, the die body being fixedly disposed at the top of the lower fixed frame and located directly above the pad, and the top of the die body having two concentrically distributed pressing grooves.

[0019] According to at least one embodiment of the present disclosure, a deep drawing apparatus for a thin-walled head structure includes a moving mold assembly further comprising a punch body and a guide rod. The punch body is fixedly disposed at the bottom end of the output shaft of a first hydraulic cylinder, and the guide rod slides through the punch body and is fixedly connected between the die body and the upper fixed frame.

[0020] The technical effects and advantages of this utility model are as follows:

[0021] This invention features a pressing and demolding mechanism. After deep drawing, the second hydraulic cylinder moves the pressing plate upwards and resets, causing it to detach from the top surface of the thin-walled head structure. During this process, the connecting slide rod drives the limiting block to rise synchronously. As the limiting block rises, its top fits against the bottom of the base plate. Subsequently, as the connecting slide rod continues to rise, the limiting block pushes multiple demolding push rods through the base plate to continuously move upwards within the pressing groove, thereby pushing the thin-walled head structure out. Compared to existing technologies, this invention avoids the pressing plate obstructing the thin-walled head structure during demolding, reducing the difficulty of demolding and making it more convenient in actual use. Attached Figure Description

[0022] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0023] Figure 1 This is a schematic diagram of the overall structure of a deep drawing apparatus for a thin-walled head structure according to one embodiment of the present disclosure.

[0024] Figure 2 This is a schematic diagram of the fixed mold assembly and the moving mold assembly of a deep drawing apparatus for a thin-walled head structure according to one embodiment of the present disclosure.

[0025] Figure 3 This is a schematic diagram of the pressing and demolding mechanism of a deep drawing forming apparatus for a thin-walled head structure according to one embodiment of the present disclosure.

[0026] The specific labels in the attached figures are as follows:

[0027] 1. Fixed mold assembly; 11. Lower fixing frame; 12. Pad block; 13. Die body; 14. Clamping groove;

[0028] 2. Moving mold assembly; 21. Upper fixed frame; 22. First hydraulic cylinder; 23. Punch body; 24. Guide rod;

[0029] 3. Pressing and demolding mechanism; 31. Second hydraulic cylinder; 32. Pressing plate; 33. Connecting slide bar; 34. Limiting block; 35. Base plate; 36. Demolding push rod. Detailed Implementation

[0030] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0031] Figure 1 This is a schematic diagram of the overall structure of a deep drawing apparatus for a thin-walled head structure according to one embodiment of the present disclosure.

[0032] Figure 2 This is a schematic diagram of the fixed mold assembly 1 and the moving mold assembly 2 of a deep drawing forming apparatus for a thin-walled head structure according to one embodiment of the present disclosure.

[0033] Figure 3 This is a schematic diagram of the pressing and demolding mechanism 3 of a deep drawing forming apparatus for a thin-walled head structure according to one embodiment of the present disclosure.

[0034] like Figures 1-3 As shown, the deep drawing forming apparatus for thin-walled head structures disclosed herein may include components such as a fixed mold assembly 1, a moving mold assembly 2, and a pressing and demolding mechanism 3.

[0035] like Figure 2 As shown in this disclosure, the fixed mold assembly 1 includes a lower fixed frame 11, a pad 12, and a die body 13. The pad 12 is fixedly disposed at the top center of the lower fixed frame 11, and the die body 13 is fixedly disposed at the top of the lower fixed frame 11 and located directly above the pad 12. The top of the die body 13 is provided with two concentric pressing grooves 14.

[0036] like Figure 2As shown, in a preferred embodiment, the moving mold assembly 2 includes an upper fixed frame 21, a first hydraulic cylinder 22, a punch body 23, and a guide rod 24. The upper fixed frame 21 is fixedly disposed on the top of the die body 13. The first hydraulic cylinder 22 is fixedly disposed on the top of the upper fixed frame 21, and its output shaft extends to the top of the inner side of the upper fixed frame 21. The punch body 23 is fixedly disposed at the bottom end of the output shaft of the first hydraulic cylinder 22. The guide rod 24 slides through the punch body 23 and is fixedly connected between the die body 13 and the upper fixed frame 21.

[0037] Therefore, after the metal blank is clamped by the clamping and demolding mechanism 3, the first hydraulic cylinder 22 drives the punch body 23 to move continuously downward along the guide rod 24. As the punch body 23 moves downward, the punch body 23 punches the metal blank, thereby forming the metal blank inside the die body 13.

[0038] It should also be noted that both the die body 13 and the punch body 23 are solutions already disclosed in the prior art and are essential technical features of this application. Therefore, this application will not elaborate on their specific structures here.

[0039] like Figure 3 As shown in this disclosure, the pressing and demolding mechanism 3 includes a second hydraulic cylinder 31, a pressing plate 32, a connecting slide rod 33, a limiting block 34, a base plate 35, and demolding push rods 36. The second hydraulic cylinder 31 is fixedly mounted on the top inner side of the upper fixing frame 21. The pressing plate 32 is fixedly mounted on the bottom end of the output shaft of the second hydraulic cylinder 31. The bottom of the pressing plate 32 is provided with two concentric annular drawing ribs. The connecting slide rod 33 is fixedly mounted on the bottom of the pressing plate 32. The limiting block 34 is fixedly mounted on the bottom end of the connecting slide rod 33. The base plate 35 is slidably sleeved on the outside of the limiting block 34 and located above the pad block 12. Multiple demolding push rods 36 are provided. The multiple demolding push rods 36 are evenly fixedly mounted on the top of the base plate 35 and all slide through the die body 13.

[0040] Therefore, before the deep drawing process begins, the second hydraulic cylinder 31 drives the clamping plate 32 to descend until the annular drawing bead at the bottom of the clamping plate 32 is pressed against the top of the metal blank. During this process, the connecting slide rod 33 moves down synchronously with the clamping plate 32, and the bottom plate 35 moves down synchronously with the connecting slide rod 33. As the bottom plate 35 continues to move down, it falls onto the top of the pad 12 and is blocked by the pad 12, thus preventing the demolding push rod 36 from coming out of the clamping groove 14. At this time, when the connecting slide rod 33 continues to move down, the bottom plate 35 no longer moves down. After the deep drawing process is completed, the second hydraulic cylinder 31 drives the clamping plate 32 to move up. The pressure plate 32 is disengaged from the top surface of the thin-walled head structure by repositioning. During this process, the connecting slide rod 33 drives the limiting block 34 to rise synchronously. As the limiting block 34 rises continuously, the top of the limiting block 34 fits against the bottom of the base plate 35. Subsequently, as the connecting slide rod 33 continues to rise, the limiting block 34 pushes multiple demolding push rods 36 through the base plate 35 to continuously move upward inside the pressure groove 14, thereby pushing out the thin-walled head structure. Compared with the prior art, this method can avoid the pressure plate 32 blocking the thin-walled head structure during demolding, reducing the difficulty of demolding the thin-walled head structure and making it more convenient in actual use.

[0041] It should also be noted that any content not described in detail in this specification is prior art known to those skilled in the art.

[0042] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A deep drawing forming apparatus for a thin-walled head structure, characterized in that, include: A fixed mold assembly, which is used to support a metal blank; Moving die assembly, which cooperates with fixed die assembly to perform deep drawing of metal blanks; and A pressing and demolding mechanism, comprising a second hydraulic cylinder, a pressing plate, a connecting slide rod, a limiting block, a base plate, and a demolding push rod; The second hydraulic cylinder is fixedly mounted on the top inner side of the upper fixed frame. The clamping plate is fixedly mounted on the bottom end of the output shaft of the second hydraulic cylinder. The bottom of the clamping plate is provided with two concentric annular drawing ribs. The connecting slide rod is fixedly mounted on the bottom of the clamping plate. The limiting block is fixedly mounted on the bottom end of the connecting slide rod. The base plate is slidably sleeved on the outside of the limiting block and located above the pad. Multiple demolding push rods are provided. The multiple demolding push rods are evenly fixedly mounted on the top of the base plate and all slide through the die body.

2. The deep drawing forming apparatus for thin-walled head structures according to claim 1, characterized in that: The fixed mold assembly includes a lower fixing frame and a pad, with the pad fixedly disposed at the top center of the lower fixing frame.

3. The deep drawing forming apparatus for thin-walled head structures according to claim 2, characterized in that: The fixed mold assembly also includes a die body, which is fixedly mounted on the top of the lower fixed frame and located directly above the pad block. The top of the die body has two concentric pressing grooves.

4. The deep drawing forming apparatus for thin-walled head structures according to claim 3, characterized in that: The moving mold assembly includes an upper fixed frame and a first hydraulic cylinder. The upper fixed frame is fixedly mounted on the top of the die body, and the first hydraulic cylinder is fixedly mounted on the top of the upper fixed frame, with its output shaft extending to the top of the inner side of the upper fixed frame.

5. The deep drawing forming apparatus for thin-walled head structures according to claim 4, characterized in that: The moving mold assembly also includes a punch body and a guide rod. The punch body is fixedly mounted at the bottom end of the output shaft of the first hydraulic cylinder, and the guide rod slides through the punch body and is fixedly connected between the die body and the upper fixed frame.

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