A special die for forging air bag shell

Abstract

The present invention relates to the technical field of special forging dies, and specifically discloses a special die for forging an air bag shell, comprising an upper die and a lower die, and a flipping mechanism fixedly connected to one side of the upper die, wherein the flipping mechanism comprises a U-shaped plate, a first cam groove, a threaded rod and a moving mechanism, and through the mutual cooperation of the U-shaped plate, the first cam groove, the threaded rod and the moving mechanism, an action of flipping 180 degrees for feeding the air bag to be forged above one side of the moving mechanism is realized, and an adjusting mechanism is arranged above one side of the moving mechanism. The present invention realizes that the air bag to be forged above one side of the moving mechanism can be accurately flipped 180 degrees by providing the flipping mechanism, ensuring that it enters the forging position accurately, which not only improves the efficiency and accuracy of feeding, but also reduces manual intervention, thereby reducing possible errors and safety risks during operation.

Description

Technical Field

[0001] The invention relates to the technical field of special forging dies, in particular to a special forging die for an air enclosure body. Background Art

[0002] The air bag shell is an industrial pressure vessel component, usually used in fluid delivery systems, such as oil field oil production, salt well salt production and other high-pressure pipeline fluid delivery systems. Its main function is to stabilize the pressure and absorb the oscillation in the system to prevent water hammer and other pressure fluctuations from damaging valves, pipelines and related equipment. Through the forging process, the mechanical properties of the air bag shell, such as strength, hardness and wear resistance, can be improved, thereby extending its service life. Compared with the traditional casting process, forging can effectively avoid casting defects such as pores, shrinkage cavities, sand inclusions and cracks, and improve product reliability;

[0003] At present, during the forging process of forging air-enclosed shells, the workpiece needs to be firmly clamped on the forging equipment, such as an air hammer or press, and clamped by using a clamp or pliers. In order to ensure that the workpiece can receive the hammering or pressure at the correct angle during the forging process, the worker needs to manually adjust the position and direction of the workpiece, which requires the operator to have a good sense of space and understanding of the geometry of the workpiece. The environment in the forging workshop may be very harsh, including high temperature, noise and dust. Operators need to adapt to such an environment when clamping and adjusting the angle, and manual operation is usually slower than automated equipment, which will lead to reduced production efficiency. Especially in mass production, manual operation may be subjective and inconsistent, and the angle of clamping and adjustment may be slightly different each time, which will greatly affect product quality. Summary of the invention

[0004] The purpose of the present invention is to provide a special die for forging an air bag shell, which solves the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a special die for forging an air bag shell, comprising an upper die and a lower die, and comprising a flipping mechanism fixedly connected to one side of the upper die, wherein the flipping mechanism comprises a U-shaped plate, a first cam groove, a threaded rod and a moving mechanism, and through the mutual cooperation of the U-shaped plate, the first cam groove, the threaded rod and the moving mechanism, the action of flipping the air bag to be forged above one side of the moving mechanism by 180 degrees is realized;

[0006] An adjusting mechanism is arranged on the upper side of one side of the moving mechanism, and the adjusting mechanism comprises a first gear, a second gear, a rack, a sliding block, a rotating rod, a first sleeve, a sliding rod, a second cam groove, a first connecting rod, a sliding plate, and a second sleeve. By matching the first gear, the second gear, the rack, the sliding block, the rotating rod, the first sleeve, the sliding rod, and the second cam groove, the rotating rod and the sliding rod are meshed with each other through the first gear and the second gear when the moving mechanism flips over to the upper die, so that the upper die drives the air bag to adjust the angle during forging after each forging is completed, and the air bag is fixed by the internal support of the air bag during the forging angle adjustment through the mutual cooperation of the first connecting rod, the sliding plate, and the second sleeve.

[0007] Furthermore, the upper mold includes a guide sleeve, an upper content cavity, and an upper limit positioning column. A semicircular upper content cavity is opened below the upper mold, upper limit positioning columns are fixedly connected to both sides of the upper content cavity, and guide sleeves are fixedly connected to the four corners of the upper content cavity.

[0008] Further, the lower mold includes a lower content cavity, a first guide column, a first return spring, a second guide column, and a lower limit block. A lower content cavity is opened above the lower mold, and the lower content cavity is semicircular. Lower limit blocks are fixedly connected to both sides of the lower content cavity, and the first guide column is fixedly connected to one side of the lower content cavity. The outer wall of the first guide column is slidably connected to the first return spring, and two groups of second guide columns are fixedly connected to the other side of the lower content cavity. The second guide column and the first guide column are both slidably connected to the inside of the guide sleeve.

[0009] Furthermore, a U-shaped plate is fixedly connected to one side of the lower mold, the U-shaped plate is U-shaped, first cam grooves are opened on both side outer walls of the U-shaped plate, and a threaded rod is rotatably connected to the bottom of the U-shaped plate.

[0010] Furthermore, two groups of optical axes are fixedly connected to the bottom of the U-shaped plate, and the two groups of optical axes are arranged on both sides of the threaded rod. The outer wall of the threaded rod is slidably connected to a moving mechanism, and the interior of the moving mechanism is rotatably connected to a long rotating shaft.

[0011] Furthermore, the long rotating shaft is slidably connected to the inside of the first cam groove, a rotating shaft is slidably connected to the top of the moving mechanism, the rotating shaft passes through one side of the moving mechanism and is fixedly connected to a short rotating shaft, and a belt is connected between the short rotating shaft and one group of the long rotating shafts.

[0012] Furthermore, a first sleeve is rotatably connected to one side of the rotating shaft, a second cam groove is opened inside the first sleeve, the first sleeve passes through the rotating shaft and is fixedly connected to a rotating disk, two sets of fixed plates are fixedly connected to one side of the rotating disk, and a second sleeve is slidably connected inside the fixed plate.

[0013] Further, the second sliding sleeve includes a second fixed shaft, a third fixed shaft, and a second connecting rod. The second sliding sleeve is fixedly connected to the second fixed shaft on both sides thereof. The second sliding sleeve is fixedly connected to two groups of third fixed shafts. The third fixed shaft is rotatably connected to the second connecting rod. The rotating disk is fixedly connected to two groups of support plates. One end of the sliding rod is rotatably connected to two groups of first connecting rods. The middle part of each group of first connecting rods is rotatably connected to the middle part of the support plate. The other end of the first connecting rod is rotatably connected to the outer wall of the second fixed shaft. The outer wall of the sliding rod is fixedly connected to a limiting rod, and the limiting rod is slidably connected to the inside of the second cam groove.

[0014] Furthermore, two sets of sliding grooves are opened inside the rotating disk, the sliding plate is slidably connected inside the sliding grooves, one side of the sliding plate passes through the second sliding sleeve and is fixedly connected to the first fixed shaft, and the other end of the second connecting rod is rotatably connected above the first fixed shaft.

[0015] Furthermore, a sliding block is slidably connected to one side of the moving mechanism, and a rack is fixedly connected to the bottom of the sliding block, wherein the outer wall of one group of the long rotating shafts is fixedly connected to a first gear, and the outer wall of one side of the moving mechanism is rotatably connected to a second gear, the second gear is meshed with the first gear, and the second gear is meshed with the rack, the interior of the sliding block is rotatably connected to a rotating rod, and the interior of the moving mechanism is fixedly connected to a second return spring, one end of the second return spring is fixedly connected to the interior of the moving mechanism, and the other end of the second return spring is fixedly connected to a top block, and the top block is arranged below the rotating shaft.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention realizes that the air bag to be forged above one side of the moving mechanism can be accurately flipped 180 degrees by setting a flipping mechanism, ensuring that it enters the forging position accurately, which not only improves the efficiency and accuracy of feeding, but also reduces manual intervention, thereby reducing possible errors and safety risks during operation.

[0018] 2. The present invention uses an adjusting mechanism to achieve the action of adjusting the angle of the air bag during forging after each forging is completed by the upper die. Through the mutual cooperation of the first connecting rod, the sliding plate and the second sliding sleeve, the action of fixing the air bag through the internal support of the air bag when the forging angle is adjusted is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1It is a schematic diagram of the overall three-dimensional structure of a special die for forging an air enclosure body of the present invention;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of an upper die and a lower die of a special die for forging an air bag shell of the present invention;

[0022] Figure 3 It is a front three-dimensional structural schematic diagram of a special die moving mechanism for forging an air enclosure body of the present invention;

[0023] Figure 4 It is a rear view three-dimensional structural schematic diagram of a special die moving mechanism for forging an air bag shell of the present invention;

[0024] Figure 5 It is a partial three-dimensional structural schematic diagram of a moving mechanism of a special die for forging an air enclosure body according to the present invention;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the connection of the second sliding sleeve of a special die for forging an air bag shell of the present invention;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the first sliding sleeve of a special die for forging an air enclosure body according to the present invention.

[0027] In the figure:

[0028] 100, upper die; 1001, guide sleeve; 1002, upper inner cavity; 1003, upper limit post; 101, lower die; 1011, lower inner cavity; 1012, first guide post; 1013, first return spring; 1014, second guide post; 1015, lower limit block;

[0029] 200, flip mechanism;

[0030] 201, U-shaped plate; 202, first cam groove; 203, optical axis; 204, threaded rod; 205, moving mechanism; 2051, long rotating shaft; 2052, belt; 2053, short rotating shaft; 2054, rotating shaft;

[0031] 300. Adjustment mechanism;

[0032] 301, first gear; 302, second gear; 303, rack; 304, sliding block; 305, rotating rod; 306, first sliding sleeve; 307, sliding rod; 308, limiting rod; 309, second cam groove; 310, supporting plate; 311, top block; 312, second return spring; 313, first connecting rod; 314, fixed plate; 315, sliding plate; 3151, first fixed shaft; 316, second sliding sleeve; 3161, second fixed shaft; 3162, third fixed shaft; 3163, second connecting rod; 317, rotating disk; 318, sliding groove. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figures 1 to 7 As shown, a special die for forging an air bag shell includes an upper die 100 and a lower die 101, and includes a flip mechanism 200 fixedly connected to one side of the upper die 100, and the flip mechanism 200 includes a U-shaped plate 201, a first cam groove 202, a threaded rod 204 and a moving mechanism 205. Through the mutual cooperation of the U-shaped plate 201, the first cam groove 202, the threaded rod 204 and the moving mechanism 205, the air bag to be forged above one side of the moving mechanism 205 is flipped 180 degrees for loading;

[0035] An adjustment mechanism 300 is disposed above one side of the moving mechanism 205. The adjustment mechanism 300 includes a first gear 301, a second gear 302, a rack 303, a sliding block 304, a rotating rod 305, a first sleeve 306, a sliding rod 307, a second cam groove 309, a first connecting rod 313, a sliding plate 315, and a second sleeve 316. 07. The matching of the second cam groove 309 enables the rotating rod 305 to mesh with the sliding rod 307 through the mutual engagement of the first gear 301 and the second gear 302 when the moving mechanism 205 flips over to the upper die 100, so that the upper die 100 can drive the air bag to adjust the angle during forging after each forging is completed. Through the mutual cooperation of the first connecting rod 313, the sliding plate 315 and the second sliding sleeve 316, the air bag can be fixed by supporting the inside of the air bag when the forging angle is adjusted.

[0036] like Figure 1 - Figure 2 As shown, the upper mold 100 includes a guide sleeve 1001, an upper content cavity 1002, and an upper limit positioning column 1003. A semicircular upper content cavity 1002 is opened at the bottom of the upper mold 100. The upper limit positioning columns 1003 are fixedly connected to both sides of the upper content cavity 1002, and the guide sleeves 1001 are fixedly connected to the four corners of the upper content cavity 1002.

[0037] The lower mold 101 includes a lower content cavity 1011, a first guide column 1012, a first return spring 1013, a second guide column 1014, and a lower limit block 1015. A lower content cavity 1011 is opened on the top of the lower mold 101. The lower content cavity 1011 is semicircular. Both sides of the lower content cavity 1011 are fixedly connected with lower limit blocks 1015. One side of the lower content cavity 1011 is fixedly connected with the first guide column 1012. The outer wall of the first guide column 1012 is slidably connected with the first return spring 1013. Two groups of second guide columns 1014 are fixedly connected to the other side of the lower content cavity 1011. The second guide column 1014 and the first guide column 1012 are both slidably connected to the inside of the guide sleeve 1001.

[0038] By adopting the above solution, the forging forming of the air bag shape is achieved through the mutual cooperation of the upper content cavity 1002 inside the upper die 100 and the lower content cavity 1011 inside the lower die 101.

[0039] like Figure 1 - Figure 4 As shown, a U-shaped plate 201 is fixedly connected to one side of the lower mold 101. The U-shaped plate 201 is U-shaped. The outer walls of both sides of the U-shaped plate 201 are provided with first cam grooves 202. The bottom of the U-shaped plate 201 is rotatably connected to a threaded rod 204.

[0040] The bottom of the U-shaped plate 201 is also fixedly connected with two groups of optical axes 203, which are arranged on both sides of the threaded rod 204. The outer wall of the threaded rod 204 is slidably connected with a moving mechanism 205, and the inside of the moving mechanism 205 is rotatably connected with a long rotating shaft 2051.

[0041] The long rotating shaft 2051 is slidably connected to the inside of the first cam groove 202, and a rotating shaft 2054 is slidably connected to the top of the moving mechanism 205. The rotating shaft 2054 passes through one side of the moving mechanism 205 and is fixedly connected to a short rotating shaft 2053. A belt 2052 is transmission-connected between the short rotating shaft 2053 and one group of long rotating shafts 2051.

[0042] By adopting the above solution, the cooperation between the moving mechanism 205 and the first cam groove 202 can more conveniently flip the air bag for loading, eliminating the need for manual clamping for loading and forging, thus better ensuring the safety and efficiency of workers.

[0043] like Figure 5 - Figure 7 As shown, one side of the rotating shaft 2054 is rotatably connected to the first sleeve 306, a second cam groove 309 is opened inside the first sleeve 306, the first sleeve 306 passes through the rotating shaft 2054 and is fixedly connected to a rotating disk 317, one side of the rotating disk 317 is fixedly connected to two groups of fixed plates 314, and the interior of the fixed plate 314 is slidably connected to the second sleeve 316.

[0044] The second sliding sleeve 316 includes a second fixed shaft 3161, a third fixed shaft 3162, and a second connecting rod 3163. The second sliding sleeve 316 is fixedly connected to the second fixed shaft 3161 on both sides thereof. Two groups of third fixed shafts 3162 are fixedly connected to the interior of the second sliding sleeve 316. The interior of the third fixed shaft 3162 is rotatably connected to the second connecting rod 3163. The interior of the rotating disk 317 is fixedly connected to two groups of support plates 310. One end of the sliding rod 307 is rotatably connected to two groups of first connecting rods 313. The middle part of each group of first connecting rods 313 is rotatably connected to the middle part of the support plate 310. The other end of the first connecting rod 313 is rotatably connected to the outer wall of the second fixed shaft 3161. The outer wall of the sliding rod 307 is fixedly connected to the limiting rod 308, and the limiting rod 308 is slidably connected to the interior of the second cam groove 309.

[0045] Two sets of slide grooves 318 are opened inside the rotating disk 317, and the sliding plate 315 is slidably connected inside the slide groove 318. One side of the sliding plate 315 passes through the second sliding sleeve 316 and is fixedly connected to the first fixed shaft 3151. The other end of the second connecting rod 3163 is rotatably connected above the first fixed shaft 3151.

[0046] A sliding block 304 is slidably connected to one side of the moving mechanism 205, and a rack 303 is fixedly connected to the bottom of the sliding block 304. The outer wall of one group of long rotating shafts 2051 is fixedly connected to the first gear 301. The outer wall of one side of the moving mechanism 205 is rotatably connected to the second gear 302, the second gear 302 is meshed with the first gear 301, and the second gear 302 is meshed with the rack 303. The interior of the sliding block 304 is rotatably connected to the rotating rod 305, and the interior of the moving mechanism 205 is fixedly connected to the second return spring 312, one end of the second return spring 312 is fixedly connected to the interior of the moving mechanism 205, and the other end of the second return spring 312 is fixedly connected to the top block 311, and the top block 311 is arranged below the rotating shaft 2054.

[0047] By adopting the above solution, the second cam groove 309 and the limiting rod 308 cooperate with each other, so that the angle of the air bag can be adjusted after each forging, and the forged shape of the air bag can be made more uniform.

[0048] Working principle:

[0049] Step 1: When the air bag is to be forged, the center hole of the blank must first be pressed. After forging, the motor is started to drive the moving mechanism 205 through the threaded rod 204 to reset the moving mechanism 205, and then the hole of the air bag is aligned with the fixed plate 314 and inserted. Then, the motor is started to drive the threaded rod 204 to rotate so that the moving mechanism 205 moves toward the upper die 100.

[0050] Step 2: With the displacement of the moving mechanism 205, the long rotating shaft 2051 rotates at the position of the first cam groove 202. When it moves to the high point of the first cam groove 202, the air bag mold is lifted to 90 degrees. When the moving mechanism 205 reaches the end of the threaded rod 204, the long rotating shaft 2051 is rotated 180 degrees. When the long rotating shaft 2051 rotates, the rotating shaft 2054 is driven to rotate together through the belt 2052, so that the air bag on the outer wall of the fixed plate 314 is turned 180 degrees and extends between the upper inner cavity 1002 and the lower inner cavity 1011.

[0051] Step 3: When the rotating shaft 2054 turns over, the long rotating shaft 2051 on one side rotates with the first gear 301, and the first gear 301 drives the second gear 302 to rotate together, so that the second gear 302 drives the rack 303 to move the sliding block 304 upward, and the sliding block 304 moves upward while driving the rotating rod 305 to move toward the inside of the sliding rod 307;

[0052] Step 4: When the air bag extends into the space between the upper inner cavity 1002 and the lower inner cavity 1011, the upper die 100 is pressed downward by the forging press, so that the upper die 100 and the lower die 101 are closed. At the same time, the rotating shaft 2054 is pressed downward by the air bag. As the rotating shaft 2054 moves downward, the rotating rod 305 moves the sliding rod 307 to one side.

[0053] Step 5: During the displacement of the slide bar 307, the limit rod 308 on the outer wall of the slide bar 307 moves on the vertical cam of the second cam groove 309 inside the first slide sleeve 306, and then the slide bar 307 pulls the first connecting rod 313 to move inwards. The movement of the first connecting rod 313 drives the second slide sleeve 316 to extend. The extended second slide sleeve 316 pulls the slide plate 315 to move inwards through the second connecting rod 3163, so that it no longer restricts the air bag.

[0054] Step six, after the air bag is forged once, the forging machine opens the mold with the upper die 100. During the process of opening the mold, the second reset spring 312 resets the rotating shaft 2054. The rotating shaft of the rotating rod 305 is provided with a torsion spring, which will reset together. During the resetting process of the rotating shaft 2054, the slide bar 307 will be reset under the drive of the rotating rod 305, and the air bag will be clamped again, and the limit rod 308 on the outer wall of the slide bar 307 will move along the oblique groove of the second cam groove 309. At this time, the first sleeve 306 will rotate, and the rotating disk 317 will rotate under the drive of the first sleeve 306, so that the air bag can be adjusted at an angle.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special die for forging an air-enclosed shell, comprising an upper die (100) and a lower die (101), characterized in that: The invention comprises a turning mechanism (200) fixedly connected to one side of the upper die (100), wherein the turning mechanism (200) comprises a U-shaped plate (201), a first cam groove (202), a threaded rod (204) and a moving mechanism (205), and through the mutual cooperation of the U-shaped plate (201), the first cam groove (202), the threaded rod (204) and the moving mechanism (205), an action of turning the air bag to be forged above one side of the moving mechanism (205) by 180 degrees is achieved; An adjustment mechanism (300) is disposed above one side of the moving mechanism (205), and the adjustment mechanism (300) comprises a first gear (301), a second gear (302), a rack (303), a sliding block (304), and a rotating rod (305). , a first sliding sleeve (306), a sliding rod (307), a second cam groove (309), a first connecting rod (313), a sliding plate (315) and a second sliding sleeve (316); by matching the first gear (301), the second gear (302), the rack (303), the sliding block (304), the rotating rod (305), the first sliding sleeve (306), the sliding rod (307), the second cam groove (309) and the second cam groove (309), when the moving mechanism (205) is turned over to the upper die (100), the first gear (301) and the second gear (302) are meshed with each other, so that the rotating rod (305) and the sliding rod (307) are meshed, so that the upper die (100) drives the air bag to adjust the angle during forging after each forging is completed, and the first connecting rod (313), the sliding plate (315) and the second sliding sleeve (316) cooperate with each other, so that the air bag supports and fixes the inside of the air bag when the forging angle is adjusted; The moving mechanism (205) is rotatably connected to a long rotating shaft (2051) inside, and the long rotating shaft (2051) is slidably connected to the inside of the first cam groove (202). The moving mechanism (205) is slidably connected to a rotating shaft (2054) above, and the rotating shaft (2054) passes through one side of the moving mechanism (205) and is fixedly connected to a short rotating shaft (2053). A belt (2052) is transmission-connected between the short rotating shaft (2053) and one group of the long rotating shafts (2051). One side of the rotating shaft (2054) is rotatably connected to a first sliding sleeve (306), and a second cam groove (309) is provided inside the first sliding sleeve (306). The first sliding sleeve (306) passes through the rotating shaft (2054). A rotating disk (317) is fixedly connected, two groups of fixed plates (314) are fixedly connected to one side of the rotating disk (317), a second sliding sleeve (316) is slidably connected inside the fixed plate (314), the second sliding sleeve (316) comprises a second fixed shaft (3161), a third fixed shaft (3162), and a second connecting rod (3163), both sides of the inside of the second sliding sleeve (316) are fixedly connected to the second fixed shaft (3161), the inside of the second sliding sleeve (316) is fixedly connected to two groups of third fixed shafts (3162), the inside of the third fixed shaft (3162) is rotatably connected to the second connecting rod (3163), the inside of the rotating disk (317) is fixedly connected to two groups of support plates (310), one end of the sliding rod (307) is rotatably connected to two groups of first connecting rods (313), the middle part of each group of the first connecting rods (313) is rotatably connected to the middle part of the support plate (310), and the first connecting rod (313) The other end of the second connecting rod (3163) is rotatably connected to the outer wall of the second fixed shaft (3161); the outer wall of the sliding rod (307) is fixedly connected to the limiting rod (308); the limiting rod (308) is slidably connected to the inside of the second cam groove (309); two groups of sliding grooves (318) are opened inside the rotating disk (317); the sliding plate (315) is slidably connected to the inside of the sliding groove (318); one side of the sliding plate (315) passes through the second sliding sleeve (316) and is fixedly connected to the first fixed shaft (3151); the other end of the second connecting rod (3163) is rotatably connected to the top of the first fixed shaft (3151); one side of the moving mechanism (205) is slidably connected to the sliding block (304); the bottom of the sliding block (304) is fixedly connected to the rack (303); one group of the outer walls of the long rotating shaft (2051) is fixedly connected to the first gear (301) A second gear (302) is rotatably connected to an outer wall of one side of the moving mechanism (205), the second gear (302) is meshed with the first gear (301), and the second gear (302) is meshed with the rack (303).The sliding block (304) is rotatably connected to a rotating rod (305) inside, the moving mechanism (205) is fixedly connected to a second return spring (312) inside, one end of the second return spring (312) is fixedly connected to the inside of the moving mechanism (205), the other end of the second return spring (312) is fixedly connected to a top block (311), and the top block (311) is arranged below the rotating shaft (2054).

2. The special die for forging an air enclosure according to claim 1, characterized in that: The upper mold (100) comprises a guide sleeve (1001), an upper content cavity (1002), and an upper limit positioning column (1003); an upper content cavity (1002) in a semicircular shape is opened below the upper mold (1000); upper limit positioning columns (1003) are fixedly connected to both sides of the upper content cavity (1002); and guide sleeves (1001) are fixedly connected to the four corners of the upper content cavity (1002).

3. The special die for forging an air enclosure according to claim 2, characterized in that: The lower mold (101) comprises a lower content cavity (1011), a first guide column (1012), a first return spring (1013), a second guide column (1014), and a lower limit block (1015). The lower content cavity (1011) is provided above the lower mold (101). The lower content cavity (1011) is semicircular. Both sides of the lower content cavity (1011) are fixedly connected to lower limit blocks (1015). One side of the lower content cavity (1011) is fixedly connected to the first guide column (1012). The outer wall of the first guide column (1012) is slidably connected to the first return spring (1013). Two groups of second guide pillars (1014) are fixedly connected to the other side, and the second guide pillars (1014) and the first guide pillars (1012) are both slidably connected inside the guide sleeve (1001).

4. The special die for forging an air enclosure according to claim 3, characterized in that: A U-shaped plate (201) is fixedly connected to one side of the lower mold (101), the U-shaped plate (201) is U-shaped, both side outer walls of the U-shaped plate (201) are provided with first cam grooves (202), and the bottom of the U-shaped plate (201) is rotatably connected to a threaded rod (204).

5. The special die for forging an air enclosure according to claim 4, characterized in that: The bottom of the U-shaped plate (201) is also fixedly connected to two groups of optical axes (203), which are arranged on both sides of a threaded rod (204), and the outer wall of the threaded rod (204) is slidably connected to a moving mechanism (205).

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