Perforating and deflating structure of air generator of safety air bag

Abstract

The utility model discloses a punching and deflating structure of a safety airbag gas generator. The machine comprises a rack, a machine top plate and a working table plate are arranged on the rack, and the machine top plate is arranged above the working table plate; the workpiece clamp is arranged on the working table plate; the punching module plate is installed below the machine table top plate, the punching module plate and the machine table top plate are movably connected up and down, and the punching module plate is located above the workpiece clamp; the punching needle is installed below the punching module plate, the punching needle and the punching module plate are movably connected up and down, and the punching needle is located above the workpiece clamp; the air pipe connector is installed below the punching module plate and located on the outer side of the punching needle, one end of the air pipe connector is fixedly connected with the lower end face of the machine table top plate in a sealed mode, a port of the other end of the air pipe connector right faces the workpiece clamp, and a sealing ring is fixed to the port of the other end of the air pipe connector. The beneficial effect of the utility model is that punching deflation and deflation detection can be realized at the same time.

Description

Technical Field

[0001] This utility model relates to the field of airbag technology, and in particular to a perforation and deflation structure for an airbag gas generator. Background Technology

[0002] The automotive gas generator is a core component of the airbag system. It is primarily used to rapidly generate inert gas (such as nitrogen) during a vehicle collision, causing the airbag to inflate and deploy within milliseconds to protect occupants. Its working principle is divided into two types: pyrotechnic (producing gas through the combustion of chemical agents) and hybrid (combining compressed gas with a chemical reaction). Modern vehicles often employ a two-stage design, making it a crucial component in the field of automotive passive safety.

[0003] In the industrial production of high-pressure gas generators for airbags, the quality inspection department conducts tests on generators after releasing the high-pressure gas. This typically involves multiple punching processes on the production line equipment daily, resulting in an estimated loss of 18 minutes of man-hours per day. Residual high-pressure gas released during generator sample punching can interfere with the normal operation of the sealing gas detection equipment, increasing production line downtime. Frequent use of the sampling punching device on the production line affects the lifespan of the punching needles, and wear on the punching needles often leads to incomplete punching of the generator, with the equipment unable to indicate whether the punching was successful. Such generators pose a serious safety hazard. Furthermore, defective generators require outsourcing to the safety department for venting treatment, further increasing the company's costs.

[0004] In summary, there is a need for a perforation and deflation structure for airbag gas generators that can simultaneously perform perforation and deflation detection. Utility Model Content

[0005] The present invention aims to overcome the shortcomings of the prior art by providing a punching and deflation structure for an airbag gas generator that can simultaneously realize punching and deflation detection.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A perforation and deflation structure for an airbag gas generator, comprising:

[0008] A frame, on which a machine table top plate and a worktable are provided, the machine table top plate being positioned above the worktable;

[0009] A workpiece fixture, wherein the workpiece fixture is disposed on a worktable;

[0010] A punching module plate is installed below the top plate of the machine base, and the punching module plate and the top plate of the machine base are movably connected vertically. The punching module plate is located above the workpiece fixture.

[0011] A punching pin is installed below the punching module plate, and the punching pin and the punching module plate are movably connected vertically. The punching pin is located above the workpiece fixture.

[0012] An air pipe connector is installed below the punching module plate. The air pipe connector is located outside the punching needle. One end of the air pipe connector is sealed and fixedly connected to the lower end face of the machine base top plate. The other end of the air pipe connector faces the workpiece fixture and is fixed with a sealing ring.

[0013] A pressure gauge is fixed on the punching module plate. An air pipe is provided between the pressure gauge and the air pipe connector. One end of the air pipe is connected to the pressure gauge, and the other end of the air pipe is fixed to the side wall of the air pipe connector and connected to the inside of the air pipe connector.

[0014] Before processing, the gas generator is clamped and fixed on the workpiece fixture. During processing, the punching module plate moves downward, pressing the other end of the air pipe connector against the surface of the gas generator (the other end of the air pipe connector is sealed to the surface of the gas generator by a sealing ring). Then, the punching needle inside the air pipe connector moves downward to punch the gas generator. After punching, the punching needle automatically resets, and the gas inside the gas generator automatically fills the inside of the air pipe connector. Since the pressure gauge is connected to the inside of the air pipe connector through the air pipe, the pressure gauge can automatically detect the release pressure of the gas generator, thereby achieving the purpose of simultaneously punching and releasing gas and releasing gas detection. This effectively reduces the production line downtime rate of airbag gas generators, ensures the safety of gas generator prototypes, and reduces the company's gas generator scrapping costs.

[0015] Preferably, a first working cylinder is fixed on the top plate of the machine base, and the punching module plate is fixed on the piston rod of the first working cylinder. A guide hole is also provided on the top plate of the machine base, and a guide shaft matching the guide hole is fixed on the punching module plate. The guide shaft is placed inside the guide hole and slidably connected to it. A second working cylinder is fixed on the punching module plate, and the punching needle is fixed on the piston rod of the second working cylinder. The punching module plate moves up and down under the control of the first working cylinder, which is convenient to control and has a high degree of automation. The coordinated design of the guide shaft and guide hole guides the movement of the punching module plate, improving movement accuracy. The punching needle moves up and down under the control of the second working cylinder, which is also convenient to control and has a high degree of automation.

[0016] Preferably, an optical fiber sensor is fixed inside the endotracheal connector, and the optical fiber sensor is positioned on the side of the punching needle. The optical fiber sensor is used to detect abnormalities such as broken needles in the punching needle, so as to detect problems in a timely manner.

[0017] Preferably, a protective frame is fixed to the frame, positioned between the machine top plate and the worktable. An upper protective door and a lower protective door are fixed to the opening of the protective frame. The widths of the upper and lower protective doors are adapted to the width of the frame opening, and the sum of the heights of the upper and lower protective doors is greater than the height of the frame opening. The upper protective door is fixed to the upper side of the frame opening, and the lower protective door is installed on the lower side of the frame opening and is vertically connected to it. A working cylinder three, connected to the lower protective door, is fixed to the frame for controlling the automatic raising and lowering of the lower protective door. Through the coordinated design of the protective frame, upper protective door, and lower protective door, a protective function is provided during punching operations, improving personnel safety.

[0018] Preferably, a start button is provided on the frame, and both working cylinder one and working cylinder two are connected to the start button, which is located on both sides of the frame. Working cylinder three is also connected to the start button. When starting work, the operator uses both hands to press the start buttons on both sides to initiate the operation, preventing the risk of fingers being pinched by the lower door during startup and improving personnel safety.

[0019] Preferably, the workpiece fixture includes a base on which two vertical clamping plates are mounted symmetrically on both sides. The vertical clamping plates are movably connected to the base. Several V-shaped clamping blocks are fixed to the vertical clamping plates, positioned on opposite sides of the two vertical clamping plates. The openings of the V-shaped clamping blocks on the two vertical clamping plates are opposite to each other, and the V-shaped clamping blocks are staggered. The base also has a synchronous motion structure connected to the two vertical clamping plates. Before processing, the gas generator is placed on the base between the two vertical clamping plates. The synchronous motion structure synchronously controls the two vertical clamping plates, causing them to simultaneously approach the gas generator from both sides and clamp it with the V-shaped clamping blocks, thus achieving the clamping and fixing of the gas generator. Through the V-shaped clamp design and the synchronous movement design of the two vertical clamping plates, gas generators of different sizes can be stably clamped and fixed, which improves the applicability. The center position of the gas generator remains unchanged after clamping, so that the other end of the gas pipe connector can be accurately pressed on the surface of the gas generator, thus improving the working accuracy.

[0020] Preferably, the synchronous motion structure includes a side plate that matches the vertical clamping plate. The side plate is fixedly connected to the base and positioned on one side opposite to the two vertical clamping plates. The side plate has a rotating sleeve mounting hole, and a rotating sleeve is disposed within the rotating sleeve mounting hole. The rotating sleeve and the rotating sleeve mounting hole are rotatably connected. A gear limiting groove is provided on the side wall of the rotating sleeve mounting hole. A gear is fixedly fitted onto the outer side of the rotating sleeve, and the gear is placed within and rotatably connected to the gear limiting groove. The base has a rotating shaft cavity inside, which communicates with the gear limiting groove. A transmission shaft is installed in the shaft cavity, and the transmission shaft and the shaft cavity are rotatably connected. A gear two matching gear one is sleeved and fixed on the transmission shaft. Gear one and gear two mesh with each other. An internal threaded hole is provided on the inner side of the rotating sleeve. The internal threaded holes on the two rotating sleeves are arranged in opposite directions. A screw is threadedly connected to the internal threaded hole. The screw is fixedly connected to a vertical clamping plate. A limit slider is fixed on the vertical clamping plate. A limit groove matching the limit slider is provided on the base. The limit slider is placed in the limit groove and slidably connected to it. During clamping and fixing, the transmission shaft is rotated by controlling it. At this time, under the action of gear one and gear two, the rotating sleeves on both side plates will rotate synchronously. When the rotating sleeves rotate, the threaded engagement between the screw and the rotating sleeve, as well as the guiding and limiting engagement between the limiting slider and the limiting groove, will cause the two vertical clamping plates to move synchronously on the base. Furthermore, through the reverse rotation design of the internal threaded holes on the two rotating sleeves, the two vertical clamping plates can be made to move towards the gas generator synchronously from both sides, and clamp the gas generator by the V-shaped clamping blocks on them. This achieves the clamping and fixing of the gas generator. The structure is simple and the control is convenient.

[0021] Preferably, a worm gear is sleeved and fixed on the transmission shaft. An operating rod is provided inside the shaft cavity, and the operating rod has a worm portion that matches the worm gear. The worm gear and the worm portion mesh with each other. One end of the operating rod is mounted on the side wall of one side of the shaft cavity, and the other end of the operating rod passes through the side wall of the other side of the shaft cavity and is located outside the base. The operating rod and the shaft cavity are rotatably connected. An operating knob is fixed to the other end of the operating rod, and the operating knob is located on the side of the base facing the opening of the protective frame. When clamping and fixing, the operator rotates the operating knob, and the transmission shaft can be driven to rotate under the transmission action of the worm portion and the worm gear. The structure is simple and the operation is convenient. Moreover, the operating knob is located on the side of the base facing the opening of the protective frame, which improves the convenience of operation.

[0022] Preferably, a fixing block is fixed on the base, the fixing block is placed on the side of the operating knob, and a moving guide groove is provided on the side of the fixing block facing the operating knob. A moving guide block is slidably connected in the moving guide groove. A pressure pad is fixed on the end of the moving guide block near the operating knob. A pressure surface adapted to the operating knob is provided on the side of the pressure pad facing the operating knob. Anti-slip texture is provided on the pressure surface. A threaded through hole is provided on the bottom surface of the moving guide groove. A locking rod is threadedly connected in the threaded through hole. One end of the locking rod is located outside the fixing block and a locking knob is fixed thereon. The other end of the locking rod is installed on the end of the moving guide block away from the operating knob and is rotatably connected to it. The locking direction of the moving guide block and the tightening direction of the operating knob are in the same direction. After the operator clamps and secures the gas generator by turning the operating knob, they can then turn the locking knob. Through the threaded engagement between the locking rod and the threaded through hole, and the guiding and limiting engagement between the moving guide block and the moving guide groove, the pressure pad on the moving guide block is moved closer to the operating knob. As the locking knob is tightened, the pressure pad is pressed against the operating knob, thus achieving the clamping and locking of the operating knob. This prevents the operating knob from deflecting and causing the V-shaped clamp to loosen the gas generator, improving the clamping effect.

[0023] The beneficial effects of this utility model are: it achieves the simultaneous realization of punching and venting detection, effectively reducing the downtime rate of the airbag gas generator production line, ensuring the safety of gas generator prototypes, and reducing the company's gas generator scrapping costs; it is easy to control and has a high degree of automation; it improves motion accuracy; it can detect broken needles in the punching needle; it improves personnel safety; it can stably clamp and fix gas generators of different sizes, thus expanding its applicability; it improves working accuracy; it has a simple structure and is easy to operate; it improves operational convenience; and it improves clamping effect. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 yes Figure 1 Sectional view at point AA;

[0026] Figure 3 yes Figure 1 Enlarged view of point B in the middle;

[0027] Figure 4 This is the front view of the workpiece fixture;

[0028] Figure 5 yes Figure 4 Sectional view at CC;

[0029] Figure 6 This is the right view of the workpiece fixture;

[0030] Figure 7 yes Figure 6 Sectional view at point DD;

[0031] Figure 8 This is a schematic diagram of the internal structure of the fixed block.

[0032] In the diagram: 1. Machine top plate, 2. Workbench plate, 3. Punching module plate, 4. Punching pin, 5. Air pipe connector, 6. Pressure gauge, 7. Air pipe, 8. Working cylinder one, 9. Guide shaft, 10. Working cylinder two, 11. Fiber optic sensor, 12. Protective frame, 13. Upper protective door, 14. Lower protective door, 15. Start button, 16. Base, 17. Vertical clamping plate, 18. V-shaped clamping block, 19. Side plate, 20. Rotary sleeve mounting hole, 21. Rotary sleeve, 22. Gear limiting groove, 23. Gear one, 24. Rotary shaft cavity, 25. Transmission shaft, 26. Gear two, 27. Internal threaded hole, 28. Screw, 29. Limiting slider, 30. Limiting slide groove, 31. Worm gear, 32. Operating lever, 33. 34. Worm gear, 35. Operating knob, 36. Fixing block, 37. Moving guide groove, 38. Moving guide block, 39. Pressing pad, 40. Threaded through hole, 41. Locking rod, 42. Locking knob, 43. Gas generator. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] like Figure 1 , Figure 2 and Figure 3 In the embodiments described above, a perforation and deflation structure for an airbag gas generator includes:

[0035] A frame, on which a machine table top plate 1 and a worktable 2 are mounted, with the machine table top plate 1 positioned above the worktable 2;

[0036] Workpiece fixture, the workpiece fixture is set on the worktable 2;

[0037] Punching module plate 3 is installed below the machine base top plate 1. The punching module plate 3 and the machine base top plate 1 are vertically connected and the punching module plate 3 is located above the workpiece fixture.

[0038] Punching pin 4 is installed below punching module plate 3. Punching pin 4 and punching module plate 3 are vertically connected and the punching pin 4 is located above the workpiece fixture.

[0039] Air pipe connector 5 is installed below the punching module plate 3. The air pipe connector 5 is located outside the punching needle 4. One end of the air pipe connector 5 is sealed and fixedly connected to the lower end face of the machine top plate 1. The other end of the air pipe connector 5 faces the workpiece fixture and is fixed with a sealing ring.

[0040] Pressure gauge 6 is fixed on the punching module plate 3. An air pipe 7 is provided between pressure gauge 6 and air pipe connector 5. One end of air pipe 7 is connected to pressure gauge 6, and the other end of air pipe 7 is fixed to the side wall of air pipe connector 5 and connected to the inside of air pipe connector 5.

[0041] A working cylinder 8 is fixed on the top plate 1 of the machine. The punching module plate 3 is fixed on the piston rod of the working cylinder 8. A guide hole is also provided on the top plate 1 of the machine. A guide shaft 9 matching the guide hole is fixed on the punching module plate 3. The guide shaft 9 is placed in the guide hole and slidably connected to it. A working cylinder 10 is fixed on the punching module plate 3. The punching needle 4 is fixed on the piston rod of the working cylinder 10.

[0042] An optical fiber sensor 11 is fixed inside the tracheal connector 5, and the optical fiber sensor 11 is placed on the side of the punching needle 4.

[0043] A protective frame 12 is fixed on the frame. The protective frame 12 is placed between the top plate 1 of the machine and the worktable 2. A protective upper door 13 (acrylic door) and a protective lower door 14 (acrylic door) are fixed at the opening of the protective frame 12. The width of the protective upper door 13 and the width of the protective lower door 14 are both adapted to the width of the opening of the protective frame 12. The sum of the height of the protective upper door 13 and the height of the protective lower door 14 is greater than the height of the opening of the protective frame 12. The protective upper door 13 is fixed on the upper side of the opening of the protective frame 12, and the protective lower door 14 is installed on the lower side of the opening of the protective frame 12 and is movably connected to it.

[0044] A start button 15 is provided on the frame. Working cylinder 8 and working cylinder 10 are both connected to the start button 15. The start button 15 is located on both sides of the frame.

[0045] like Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the workpiece fixture includes a base 16, on which two vertical clamping plates 17 are mounted. The vertical clamping plates 17 are symmetrically arranged on both sides of the base 16 and are movably connected to the base 16. Several V-shaped clamping blocks 18 are fixed on the vertical clamping plates 17. The V-shaped clamping blocks 18 are placed on the opposite side of the two vertical clamping plates 17. The openings of the V-shaped clamping blocks 18 on the two vertical clamping plates 17 are arranged opposite each other, and the V-shaped clamping blocks 18 on the two vertical clamping plates 17 are staggered. The base 16 is also provided with a synchronous motion structure connected to the two vertical clamping plates 17.

[0046] The synchronous motion structure includes a side plate 19 that matches the vertical clamping plate 17. The side plate 19 and the base 16 are fixedly connected. The side plate 19 is positioned on one side opposite to the two vertical clamping plates 17. The side plate 19 has a rotating sleeve mounting hole 20. A rotating sleeve 21 is installed inside the rotating sleeve mounting hole 20. The rotating sleeve 21 and the rotating sleeve mounting hole 20 are rotatably connected. A gear limiting groove 22 is provided on the side wall of the rotating sleeve mounting hole 20. A gear 23 is fixedly fitted onto the outer side of the rotating sleeve 21. The gear 23 is placed in the gear limiting groove 22 and rotatably connected to it. The base 16 has a rotating shaft cavity 24 inside. The rotating shaft cavity 24 is connected to the gear limiting groove 22. A transmission shaft 25 is installed, and the transmission shaft 25 is rotatably connected to the shaft cavity 24. A gear 26 matching the gear 1 23 is sleeved and fixed on the transmission shaft 25. The gear 1 23 and the gear 26 mesh with each other. An internal threaded hole 27 is provided on the inner side of the rotating sleeve 21. The internal threaded holes 27 on the two rotating sleeves 21 are arranged in opposite directions. A screw 28 is threadedly connected to the internal threaded hole 27. The screw 28 is fixedly connected to the vertical clamping plate 17. A limit slider 29 is fixed on the vertical clamping plate 17. A limit groove 30 matching the limit slider 29 is provided on the base 16. The limit slider 29 is placed in the limit groove 30 and slidably connected to it.

[0047] A worm gear 31 is sleeved and fixed on the transmission shaft 25. An operating rod 32 is provided inside the shaft cavity 24. The operating rod 32 is provided with a worm part 33 that matches the worm gear 31. The worm gear 31 and the worm part 33 mesh with each other. One end of the operating rod 32 is installed on the side wall of one side of the shaft cavity 24. The other end of the operating rod 32 passes through the side wall of the other side of the shaft cavity 24 and is placed outside the base 16. The operating rod 32 and the shaft cavity 24 are rotatably connected. An operating knob 34 is fixed to the other end of the operating rod 32. The operating knob 34 is located on the side of the base 16 facing the opening of the protective frame 12.

[0048] A fixing block 35 is fixed on the base 16. The fixing block 35 is located on the side of the operating knob 34. A moving guide groove 36 is provided on the side of the fixing block 35 facing the operating knob 34. A moving guide block 37 is slidably connected in the moving guide groove 36. A pressing pad 38 is fixed on the end of the moving guide block 37 near the operating knob 34. A pressing surface adapted to the operating knob 34 is provided on the side of the pressing pad 38 facing the operating knob 34. Anti-slip texture is provided on the pressing surface. A threaded through hole 39 is provided on the bottom surface of the moving guide groove 36. A locking rod 40 is threadedly connected in the threaded through hole 39. One end of the locking rod 40 is located outside the fixing block 35 and a locking knob 41 is fixed on it. The other end of the locking rod 40 is installed on the end of the moving guide block 37 away from the operating knob 34 and is rotatably connected to it. The locking direction of the moving guide block 37 and the tightening direction of the operating knob 34 are set in the same direction.

[0049] This invention also includes a type-change control button to switch to a processing mode that adapts to the type of gas generator. This invention also includes a PLC control unit, alarm lights, a power switch, an emergency stop button, and other commonly used machine tool structures, which are known to those skilled in the art and will not be described in detail here.

[0050] Before processing, the gas generator 42 is placed on the base 16 and positioned between two vertical clamping plates 17. When clamping and fixing, the operator turns the operating knob 34, which drives the transmission shaft 25 to rotate under the transmission action of the worm gear 33 and the worm wheel 31. At this time, under the cooperation of gear 1 23 and gear 2 26, the rotating sleeves 21 on both side plates 19 will rotate synchronously. When the rotating sleeves 21 rotate, the threaded engagement between the screw 28 and the rotating sleeves 21 and the guide and limiting engagement between the limiting slider 29 and the limiting groove 30 will cause the two vertical clamping plates 17 to move synchronously on the base 16. Through the reverse rotation design of the internal threaded holes 27 on the two rotating sleeves 21, the two vertical clamping plates 17 can move towards the gas generator 42 synchronously from both sides and clamp the gas generator 42 through the V-shaped clamping blocks 18 on them. After the operator clamps and fixes the gas generator 42 by rotating the operating knob 34, the locking knob 41 can be rotated. Through the threaded engagement between the locking rod 40 and the threaded through hole 39, and the guiding and limiting engagement between the moving guide block 37 and the moving guide groove 36, the pressing pad 38 on the moving guide block 37 is moved closer to the operating knob 34. At the same time as the locking knob 41 is tightened, the pressing pad 38 is pressed against the operating knob 34, thereby achieving the pressing and locking of the operating knob 34 and preventing the operating knob 34 from deflecting and causing the V-shaped clamp 18 to loosen the gas generator 42.

[0051] During processing, the operator uses both hands to press the start buttons 15 on both sides to start the operation. At this time, the protective lower door 14 automatically closes, and the punching module plate 3 moves downward under the control of the working cylinder 8, so that the other end of the air pipe connector 5 presses against the surface of the gas generator 42 (the other end of the air pipe connector 5 is sealed with a sealing ring to the surface of the gas generator 42). Then, the punching needle 4 inside the air pipe connector 5 moves downward under the control of the working cylinder 10 to punch the gas generator 42. After 3 seconds, the punching is completed, and the punching needle 4 automatically resets. At this time, the gas inside the gas generator 42 automatically fills the inside of the air pipe connector 5. Since the pressure gauge 6 is connected to the inside of the air pipe connector 5 through the air pipe 7, the pressure gauge 6 can automatically detect the gas release pressure of the gas generator 42 and feed it back to the PLC.

[0052] When pressure gauge 6 detects a venting pressure > 10 kPa, it sends a signal to the PLC. At this point, the process is complete, the equipment flashes a green light indicating that punching and venting are finished, and the operator can remove the finished product. If pressure gauge 6 detects a venting pressure < 10 kPa, it sends a signal to the PLC indicating that the process is not complete. The equipment flashes a red light, triggering an alarm. The operator escalates the abnormality handling procedure (the equipment personnel check the punching pin for abnormalities; if the punching pin is normal, the operator resets it and performs a second punching operation).

[0053] The electrical control actions in this invention can all be implemented using existing computer programming technology combined with existing microcontroller models. This is conventional prior art and will not be elaborated further.

Claims

1. A perforation and deflation structure for an airbag gas generator, characterized in that, include: A frame, on which a machine table top plate (1) and a worktable plate (2) are provided, the machine table top plate (1) being positioned above the worktable plate (2); A workpiece fixture is provided on a worktable (2); Punching module plate (3), the punching module plate (3) is installed below the machine base top plate (1), the punching module plate (3) and the machine base top plate (1) are movably connected vertically, and the punching module plate (3) is located above the workpiece fixture; Punching pin (4), the punching pin (4) is installed below the punching module plate (3), the punching pin (4) and the punching module plate (3) are movably connected vertically, and the punching pin (4) is located above the workpiece fixture; Air pipe connector (5), the air pipe connector (5) is installed below the punching module plate (3), the air pipe connector (5) is located outside the punching needle (4), one end of the air pipe connector (5) is sealed and fixedly connected to the lower end face of the machine base top plate (1), and the other end of the air pipe connector (5) faces the workpiece fixture and is fixed with a sealing ring. A pressure gauge (6) is fixed on the perforated module plate (3). An air pipe (7) is provided between the pressure gauge (6) and the air pipe connector (5). One end of the air pipe (7) is connected to the pressure gauge (6), and the other end of the air pipe (7) is fixed on the side wall of the air pipe connector (5) and connected to the inside of the air pipe connector (5).

2. The punch and vent structure of claim 1, wherein The top plate (1) of the machine base is fixed with a working cylinder (8), the punching module plate (3) is fixed on the piston rod of the working cylinder (8), the top plate (1) of the machine base is also provided with a guide hole, the punching module plate (3) is fixed with a guide shaft (9) that matches the guide hole, the guide shaft (9) is placed in the guide hole and slidably connected to it, the punching module plate (3) is fixed with a working cylinder (10), and the punching needle (4) is fixed on the piston rod of the working cylinder (10).

3. The punch and vent structure of claim 1, wherein An optical fiber sensor (11) is fixed inside the tracheal connector (5), and the optical fiber sensor (11) is placed on the side of the punching needle (4).

4. The punch and vent structure of claim 1 wherein, A protective frame (12) is fixed on the frame. The protective frame (12) is placed between the top plate (1) of the machine and the worktable (2). A protective upper door (13) and a protective lower door (14) are fixed at the opening of the protective frame (12). The width of the protective upper door (13) and the width of the protective lower door (14) are both adapted to the width of the opening of the protective frame (12). The sum of the height of the protective upper door (13) and the height of the protective lower door (14) is greater than the height of the opening of the protective frame (12). The protective upper door (13) is fixed on the upper side of the opening of the protective frame (12), and the protective lower door (14) is installed on the lower side of the opening of the protective frame (12) and is movably connected to it.

5. The punch and vent structure of claim 2, wherein The frame is equipped with a start button (15), and the first working cylinder (8) and the second working cylinder (10) are both connected to the start button (15). The start button (15) is located on both sides of the frame.

6. A punch and vent structure for an airbag inflator according to any one of claims 1 to 5, wherein the vent hole is formed in the center of the punch. The workpiece fixture includes a base (16), on which two vertical clamping plates (17) are mounted. The vertical clamping plates (17) are symmetrically arranged on both sides of the base (16). The vertical clamping plates (17) and the base (16) are movably connected. Several V-shaped clamping blocks (18) are fixed on the vertical clamping plates (17). The V-shaped clamping blocks (18) are placed on the opposite side of the two vertical clamping plates (17). The openings of the V-shaped clamping blocks (18) on the two vertical clamping plates (17) are arranged opposite to each other. The V-shaped clamping blocks (18) on the two vertical clamping plates (17) are staggered. The base (16) is also provided with a synchronous motion structure connected to the two vertical clamping plates (17).

7. The airbag gas generator perforation and deflation structure according to claim 6, characterized in that, The synchronous motion structure includes a side plate (19) that matches the vertical clamping plate (17). The side plate (19) and the base (16) are fixedly connected. The side plate (19) is placed on the opposite side of the two vertical clamping plates (17). The side plate (19) is provided with a rotating sleeve mounting hole (20). A rotating sleeve (21) is provided in the rotating sleeve mounting hole (20). The rotating sleeve (21) and the rotating sleeve mounting hole (20) are rotatably connected. A gear limiting groove (22) is provided on the side wall of the rotating sleeve mounting hole (20). A gear (23) is fixedly fitted on the outer side of the rotating sleeve (21). The gear (23) is placed in the gear limiting groove (22) and rotatably connected to it. A rotating shaft cavity (24) is provided inside the base (16). The rotating shaft cavity (24) and the gear limiting groove (22) are connected. 4) A transmission shaft (25) is installed in the shaft. The transmission shaft (25) and the shaft cavity (24) are rotatably connected. A gear (26) matching the gear one (23) is sleeved and fixed on the transmission shaft (25). The gear one (23) and the gear two (26) mesh with each other. An internal thread hole (27) is provided on the inner side of the rotating sleeve (21). The internal thread holes (27) on the two rotating sleeves (21) are arranged in opposite directions. A screw (28) is threadedly connected to the internal thread hole (27). The screw (28) is fixedly connected to the vertical clamping plate (17). A limit slider (29) is fixed on the vertical clamping plate (17). A limit groove (30) matching the limit slider (29) is provided on the base (16). The limit slider (29) is placed in the limit groove (30) and slidably connected to it.

8. An airbag inflator perforating vent structure according to claim 7, wherein A worm gear (31) is fixedly sleeved on the transmission shaft (25). An operating rod (32) is provided in the shaft cavity (24). A worm part (33) matching the worm gear (31) is provided on the operating rod (32). The worm gear (31) and the worm part (33) mesh with each other. One end of the operating rod (32) is installed on the side wall of one side of the shaft cavity (24). The other end of the operating rod (32) passes through the side wall of the other side of the shaft cavity (24) and is placed outside the base (16). The operating rod (32) and the shaft cavity (24) are rotatably connected. An operating knob (34) is fixed on the other end of the operating rod (32). The operating knob (34) is located on the side of the base (16) facing the opening of the protective frame (12).

9. An airbag inflator perforating vent structure according to claim 8, wherein A fixing block (35) is fixed on the base (16). The fixing block (35) is placed on the side of the operating knob (34). A moving guide groove (36) is provided on the side of the fixing block (35) facing the operating knob (34). A moving guide block (37) is slidably connected in the moving guide groove (36). A pressing pad (38) is fixed on the end of the moving guide block (37) near the operating knob (34). A pressing surface adapted to the operating knob (34) is provided on the side of the pressing pad (38) facing the operating knob (34). The pressing surface is provided with anti-slip texture. The bottom surface of the moving guide groove (36) is provided with a threaded through hole (39). A locking rod (40) is threadedly connected to the threaded through hole (39). One end of the locking rod (40) is located outside the fixed block (35) and a locking knob (41) is fixed thereon. The other end of the locking rod (40) is installed on the end of the moving guide block (37) away from the operating knob (34) and is rotatably connected to it. The locking direction of the moving guide block (37) and the tightening direction of the operating knob (34) are set in the same direction.

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