Efficient metal bottom cover stamping device for automobile safety air bag

Abstract

The invention discloses an efficient metal bottom cover stamping device for an automobile safety air bag, and relates to the technical field of safety air bag metal bottom cover production. The three fixed extrusion blocks are used for limiting and fixing the metal bottom cover material plate above the stamping lower die, so that the stamping positions of the stamped gas guide hole, the air bag expansion hole and the riveting hole are accurate, the stamping efficiency of the metal bottom cover stamping machine is greatly improved, and compared with the prior art, the stamping efficiency of the metal bottom cover stamping machine is greatly improved. The accuracy of the air bag expansion hole, the air flow guide hole and the riveting hole is improved, the accuracy of the air bag expansion hole ensures that the air bag can be rapidly and effectively inflated during collision, the injury risk of passengers is reduced, the overall safety is improved, the accuracy of the air flow guide hole ensures that air flows smoothly, the air inflation speed of the air bag is increased, and the reaction capacity of the air bag is enhanced. And the accurate hole positions enable the assembly and maintenance processes to be more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of production of metal bottom covers of safety airbags, in particular to a high-efficiency metal bottom cover punching device for automobile safety airbags. Background Art

[0002] The design and manufacture of automobile airbags involve multiple key components, among which the metal undercover and stamping device are crucial parts. The metal undercover for automobile airbags provides the necessary structural support for the airbag. It can maintain its shape when the airbag is deployed, ensuring that the airbag can be properly inflated and effectively protect the occupants. The undercover can withstand the impact force during the deployment of the airbag to prevent the airbag from being damaged during deployment and ensure its safety performance. The metal undercover is usually connected to other structural parts of the vehicle to ensure that the airbag can be deployed in time and provide protection for the occupants in the event of a collision. The metal undercover stamping device for automobile airbags is used to process metal materials into the required shape of the airbag undercover. Through stamping, metal can be efficiently processed to form an undercover that meets the design requirements. The metal material is placed in the stamping machine, and pressure is applied through the mold to form the metal material into the required undercover shape.

[0003] When optimizing an existing stamping device for producing and processing metal products, most of the optimizations are reflected in the convenience of installation and disassembly, the fixation of the mold, the convenience of material removal and the improvement of production efficiency. For example, the Chinese utility model patent with patent number CN219274175U discloses "A stamping device for producing metal products". In this device, the stamping device for producing and processing metal products is provided with a limit adjustment mechanism. When it is necessary to stamp a metal plate, the cover door is opened by the handle, and the drive motor operates to control the screw member to drive the first movable plate, the limit bottom plate and the second movable plate to move stably inward under the cooperation of the second movable plate and the guide rod through the thread cooperation of the first movable plate. The metal plate width to be stamped is limited, so that the stamping device is more convenient for limiting the metal plate for processing when used, and the metal plate is prevented from being offset during stamping, thereby reducing unnecessary waste and reducing production costs.

[0004] Although the above-mentioned stamping device for metal product production has certain advantages in installation and disassembly, mold fixing and material removal, it still has certain disadvantages:

[0005] 1. During the stamping process of the existing metal bottom cover material plate for airbags, the metal bottom cover material plate for airbags is easily offset in its placement position, resulting in a decrease in the molding accuracy of the metal bottom cover. The position offset of the metal bottom cover material plate for airbags will affect the accuracy of the airbag expansion hole, gas guide hole and riveting hole, thereby affecting the function and safety of the airbag.

[0006] 2. After the gas guide holes, airbag expansion holes and rivet holes are stamped, a large amount of hole waste is left, which not only increases the stamping production cost, but also may affect the subsequent processing. The residual waste may cause blockage when the airbag is deployed, affecting the normal operation of the airbag and bringing safety hazards. Summary of the invention

[0007] In view of the deficiency of position deviation of some holes in the stamping process of metal bottom cover for automobile airbag in the prior art, the present invention provides a high-efficiency metal bottom cover stamping device for automobile airbag, which solves the problem of stamping position deviation of airbag expansion holes, gas diversion holes and riveting holes in the metal bottom cover for automobile airbag and accumulation of hole waste.

[0008] In order to achieve the purpose of accurate stamping position of airbag expansion holes, gas diversion holes and riveting holes of metal bottom cover for automobile airbags and automatic cleaning of hole diameter waste, the present invention is achieved through the following technical scheme: an efficient metal bottom cover stamping device for automobile airbags, including a metal bottom cover stamping machine and a hydraulic press installed inside the metal bottom cover stamping machine, a stamping moving component is installed on the outer surface of the output end of the hydraulic press, a stamping upper die is installed on the outer surface of the stamping moving component, a stamping lower die is installed inside the metal bottom cover stamping machine, a mold cavity is opened on the outer surface of the stamping lower die and the outer surface of the stamping upper die, a power synchronization fixing component is installed inside the metal bottom cover stamping machine, and an automatic blanking component is installed on the outer surface of the power synchronization component. The power synchronous fixing component includes a motor and a transmission system. The motor is installed inside the metal bottom cover stamping machine. The outer surface of the motor output end is installed with a transmission system. The outer surface of the transmission system is installed with a disc. The outer surface of the disc is evenly installed with three limit plates. Three limit blocks are installed inside the stamping lower mold. The insides of the three limit blocks are all movably installed with a first limit column. The outer surfaces of the three first limit columns are all installed with a second limit column. The insides of the three limit blocks are all provided with a synchronous adjustment cavity. The outer surfaces of the three second limit columns correspond to the inner wall of the synchronous adjustment cavity and are movably contacted. The outer surfaces of the three first limit columns are all installed with adjustment blocks, and the insides of the three adjustment blocks are all installed with a stamping telescopic reset component.

[0009] Furthermore, the stamping system includes a rotating shaft and a driving bevel gear, the rotating shaft is installed on the outer surface of the motor output end, one end surface of the rotating shaft is in active contact with the inside of the metal bottom cover stamping machine, and the driving bevel gear is installed on the outer surface of the rotating shaft.

[0010] Furthermore, a rotating column is movably installed inside the stamping lower die and inside the metal bottom cover stamping machine, and a driven helical gear is installed on one end surface of the rotating column.

[0011] Furthermore, the outer surface of the driven helical gear is meshed with the outer surface of the driving helical gear, and the other end surface of the rotating column is fixedly connected to the bottom end surface of the disc.

[0012] Furthermore, the stamping moving assembly includes a connecting moving plate and two limiting sliders, the connecting moving plate is installed on the outer surface of the output end of the hydraulic press, the two limiting sliders are correspondingly installed on the two end surfaces of the connecting moving plate, and two limiting slide rails are installed inside the metal bottom cover stamping machine, the outer surfaces of the two limiting slide rails are correspondingly in active contact with the outer surfaces of the limiting sliders, and the bottom end surface of the connecting moving plate is fixedly connected to the top end surface of the stamping upper mold.

[0013] Furthermore, the stamping telescopic reset assembly includes a lifting chamber and a first adjusting column. The lifting chamber is opened inside the adjusting block. The first adjusting column is installed on the inner wall of the lifting chamber. A column cavity is opened inside the first adjusting column. A first movable groove is opened on the outer side of the stamping lower mold. The inner wall of the first movable groove is in movable contact with the outer surface of the adjusting block.

[0014] Furthermore, a connecting spring is installed on the inner wall of the column cavity, a second adjusting column is installed on one end surface of the connecting spring, the outer surface of the second adjusting column is in movable contact with the inner wall of the column cavity, and a fixed extrusion block is installed on the top surface of the second adjusting column, the outer surface of the fixed extrusion block is in movable contact with the inner wall of the lifting cavity.

[0015] Furthermore, the automatic unloading component includes a second movable groove and an unloading movable plate, the second movable groove is opened inside the stamping lower mold, the unloading movable plate is installed on the outer surface of the first limiting column, and the outer surface of the unloading movable plate is in active contact with the inner wall of the second movable groove.

[0016] Furthermore, a gear bar is installed on the outer surface of the blanking movable plate, a waste blowing cavity is opened inside the stamping lower mold, an air pipe interface is evenly installed on the outer surface of the stamping lower mold, a ball screw is movably installed on the inner wall of the waste blowing cavity, a screw slider is movably installed on the outer surface of the ball screw, a gear ring is installed on the outer surface of the ball screw, and the outer surface of the gear ring is meshed with the outer surface of the gear bar.

[0017] Furthermore, stabilizing sliders are installed on both end surfaces of the ball screw, a stabilizing slide cavity is opened inside the stamping lower mold, the outer surface of the stabilizing slider is in movable contact with the inner wall of the stabilizing slide cavity, a connecting bracket is installed on the outer surface of the stabilizing slider, a waste mold plate is installed on the outer surface of the connecting bracket, and the outer surface of the waste mold plate is in movable contact with the inner wall of the mold cavity.

[0018] The present invention has the following beneficial effects:

[0019] 1. The high-efficiency metal bottom cover stamping device for automobile safety airbag drives the adjusting block and the fixed extrusion block to move synchronously through the three first limiting columns, so that the three fixed extrusion blocks limit and fix the metal bottom cover material plate above the stamping lower die, so that the stamping positions of the gas guide holes, airbag expansion holes and riveting holes after stamping are accurate, which greatly improves the stamping efficiency of the metal bottom cover stamping machine, speeds up the production efficiency of the metal bottom cover of automobile safety airbags by the metal bottom cover stamping machine, and stabilizes the product quality. Compared with the existing technology, the airbag expansion holes, gas guide holes and riveting holes are improved. The accuracy of the rivet holes and the accuracy of the airbag inflation holes ensure that the airbag can be inflated quickly and effectively during a collision, reducing the risk of injury to the occupants and improving overall safety. The accuracy of the gas diversion holes ensures smooth gas flow, increases the inflation speed of the airbag, and enhances its responsiveness. The accuracy of the rivet hole positions helps to achieve a stable connection of the structure, ensures a firm bond between the metal undercover and the airbag, and increases the strength and reliability of the overall structure. Accurate hole positions make assembly and maintenance more convenient and reduce assembly difficulties caused by inaccurate positions.

[0020] 2. The high-efficiency metal bottom cover stamping device for automobile safety airbags connects the air pipe in the air pipe interface to blow the waste blowing chamber, so that the waste of the gas guide hole, the air bag expansion hole and the rivet hole is automatically blown, and the waste of the gas guide hole, the air bag expansion hole and the rivet hole is automatically cleaned. The strong blowing of the gas can effectively and automatically remove the waste of the gas guide hole, the air bag expansion hole and the rivet hole, reduce manual intervention, improve work efficiency, greatly shorten the cleaning time of the stamping die, make the production process smoother, improve the overall production efficiency, reduce the equipment downtime caused by waste blockage, ensure that the waste of the gas guide hole, the air bag expansion hole and the rivet hole is thoroughly cleaned, which is helpful to improve the quality of the subsequent processing of the metal bottom cover for the safety airbag and reduce the quality problems caused by the residual waste of the gas guide hole, the air bag expansion hole and the rivet hole.

[0021] 3. The high-efficiency metal bottom cover stamping device for automobile airbags drives the connecting bracket and the waste mold plate to move up and down through a stable slider, so that the waste mold plate is moved into the cavity of the stamping lower mold, and the horizontal plane of the waste mold plate and the horizontal plane of the stamping lower mold are in the same plane, ensuring that the metal bottom cover material plate is subjected to uniform force during the stamping process, reducing offset and deviation, thereby improving the accuracy of the stamped product. Maintaining the same plane can reduce friction and wear between the stamping upper mold and the stamping lower mold parts, extend the service life of the stamping upper mold and the stamping lower mold, and reduce production costs.

[0022] 4. The high-efficiency metal bottom cover stamping device for automobile airbags moves the second adjusting column in the column cavity inside the first adjusting column, so that the fixed extrusion block can be lifted and lowered, which is convenient for the stamping upper die to stamp the metal bottom cover material plate of the stamping lower die. The movement of the fixed extrusion block in the lifting cavity enables the stamping process to be flexibly adjusted, so that the metal bottom cover material plate always remains stable during the stamping process, reducing stamping errors caused by position deviations, reducing waste and defective products, and improving material utilization, thereby reducing production costs, reducing the risk of worker injuries, and improving operational safety.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the metal bottom cover punching machine of the present invention;

[0025] Figure 2 It is a schematic diagram of the internal structure of the metal bottom cover punching machine of the present invention;

[0026] Figure 3 This is a schematic diagram of the overall structure of the stamping moving assembly of the present invention;

[0027] Figure 4 This is a schematic diagram of the external structure of the lower stamping die of the present invention;

[0028] Figure 5 This is a schematic diagram of the overall structure of the stamping lower die of the present invention;

[0029] Figure 6 It is a schematic diagram of the overall structure of the stamping system of the present invention;

[0030] Figure 7 It is a schematic diagram of the overall structure of the stamping system of the present invention from another perspective;

[0031] Figure 8 This is a schematic diagram of the internal structure of the automatic blanking component of the present invention;

[0032] Fig. 9 This is a schematic diagram of the internal structure of the automatic blanking assembly of the present invention from another perspective;

[0033] Fig.10 It is a schematic diagram of the internal structure of the stamping telescopic reset component of the present invention.

[0034] In the figure: 1. Metal bottom cover punching machine; 2. Hydraulic press; 3. Limiting slide rail; 4. Connecting moving plate; 5. Limiting slider; 6. Stamping upper die; 7. Stamping lower die; 8. Die cavity; 9. Motor; 10. Rotating shaft; 11. Active helical gear; 12. Driven helical gear; 13. Rotating column; 14. Disc; 15. Limiting dial plate; 16. Synchronous adjustment cavity; 17. Limiting block; 18. First limiting column; 19. Second limiting column; 20. First moving Groove; 21. Adjustment block; 22. Lifting chamber; 23. First adjustment column; 24. Column chamber; 25. Connecting spring; 26. Second adjustment column; 27. Fixed extrusion block; 28. Second movable groove; 29. ​​Unloading movable plate; 30. Gear bar; 31. Waste blowing chamber; 32. Ball screw; 33. Screw slider; 34. Gear ring; 35. Stable slider; 36. Stable sliding chamber; 37. Connecting bracket; 38. Waste mold plate; 39. Air pipe interface. DETAILED DESCRIPTION

[0035] 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.

[0036] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] See also Figure 1-Figure 10The embodiment of the present invention provides a technical solution: an efficient metal bottom cover stamping device for automobile safety airbags, comprising a metal bottom cover stamping machine 1 and a hydraulic press 2 installed inside the metal bottom cover stamping machine 1, a stamping moving component is installed on the outer surface of the output end of the hydraulic press 2, a stamping upper die 6 is installed on the outer surface of the stamping moving component, a stamping lower die 7 is installed inside the metal bottom cover stamping machine 1, and a die cavity 8 is provided on the outer surface of the stamping lower die 7 and the outer surface of the stamping upper die 6, a power synchronization fixing component is installed inside the metal bottom cover stamping machine 1, an automatic material discharge component is installed on the outer surface of the power synchronization component, the power synchronization fixing component includes a motor 9 and a transmission system, the motor 9 is installed inside the metal bottom cover stamping machine 1, and the outer surface of the output end of the motor 9 A transmission system is installed on the surface, a disc 14 is installed on the outer surface of the transmission system, three limit plates 15 are evenly installed on the outer surface of the disc 14, three limit blocks 17 are installed inside the stamping lower mold 7, the insides of the three limit blocks 17 are all movably installed with first limit columns 18, the outer surfaces of the three first limit columns 18 are all installed with second limit columns 19, the insides of the three limit blocks 17 are all provided with synchronous adjustment cavities 16, the outer surfaces of the three second limit columns 19 correspond to the inner wall of the synchronous adjustment cavity 16, the outer surfaces of the three first limit columns 18 are all installed with adjustment blocks 21, and the insides of the three adjustment blocks 21 are all installed with stamping telescopic reset components. The stamping system includes a rotating shaft 10 and an active bevel gear 11, and the rotating shaft 10 is arranged The outer surface of the output end of the motor 9 is installed, and one end surface of the rotating shaft 10 is in active contact with the inside of the metal bottom cover punching machine 1. The driving bevel gear 11 is installed on the outer surface of the rotating shaft 10. The interior of the stamping lower mold 7 and the interior of the metal bottom cover punching machine 1 are jointly installed with a rotating column 13. The driven bevel gear 12 is installed on one end surface of the rotating column 13. The outer surface of the driven bevel gear 12 is meshed with the outer surface of the driving bevel gear 11. The other end surface of the rotating column 13 is fixedly connected to the bottom end surface of the disc 14. The limit block 17 limits the first limit column 18 to move linearly, so that the second limit column 19 is limited in the synchronous adjustment cavity 16 to move, and the first limit column 18 drives the adjustment block 21 to move linearly in the first moving groove 20. The three first limiting columns 18 move, so that the three first limiting columns 18 drive the adjusting block 21 and the fixed extrusion block 27 to move synchronously, so that the three fixed extrusion blocks 27 limit and fix the metal bottom cover material plate above the stamping lower die 7, so that the stamping positions of the gas guide holes, airbag expansion holes and riveting holes after stamping are accurate, avoiding stamping errors caused by position deviations, greatly improving the stamping efficiency of the metal bottom cover stamping machine 1, and shortening the replacement and debugging time. The accuracy of the airbag expansion holes ensures that the airbag can be inflated quickly and effectively during a collision, reducing the risk of injury to the occupants and improving the overall safety. The accuracy of the gas guide holes ensures smooth gas flow, improves the inflation speed of the airbag, and enhances its responsiveness. The accuracy of the riveting hole positions helps to achieve a stable connection of the structure.Ensure the firm connection between the metal bottom cover and the airbag, increase the strength and reliability of the overall structure, and the accurate hole position makes the assembly and maintenance process more convenient, reducing the assembly difficulties caused by inaccurate position.

[0038] The stamping moving assembly includes a connecting moving plate 4 and two limit sliders 5. The connecting moving plate 4 is installed on the outer surface of the output end of the hydraulic press 2. The two limit sliders 5 are correspondingly installed on the two end surfaces of the connecting moving plate 4. Two limit slide rails 3 are installed inside the metal bottom cover stamping machine 1. The outer surfaces of the two limit slide rails 3 are in active contact with the outer surfaces of the limit sliders 5. The bottom end surface of the connecting moving plate 4 is fixedly connected to the top surface of the stamping upper mold 6. The stamping telescopic reset assembly includes a lifting chamber 22 and a first adjusting column 23. The lifting chamber 22 is opened at Inside the adjusting block 21, a first adjusting column 23 is installed on the inner wall of the lifting chamber 22, a column cavity 24 is provided inside the first adjusting column 23, a first moving groove 20 is provided on the outer side of the stamping lower mold 7, the inner wall of the first moving groove 20 is in active contact with the outer surface of the adjusting block 21, a connecting spring 25 is installed on the inner wall of the column cavity 24, a second adjusting column 26 is installed on one end surface of the connecting spring 25, the outer surface of the second adjusting column 26 is in active contact with the inner wall of the column cavity 24, and a fixed extrusion block 27 is installed on the top surface of the second adjusting column 26 The outer surface of the fixed extrusion block 27 is in active contact with the inner wall of the lifting chamber 22. The hydraulic press 2 drives the connecting movable plate 4 and the two limit sliders 5 to move stably on the limit slide rails 3, so that the connecting movable plate 4 drives the stamping upper die 6 to move for stamping. When the stamping upper die 6 stamps the stamping lower die 7, the stamping upper die 6 synchronously squeezes the fixed extrusion block 27, and the fixed extrusion block 27 moves in the lifting chamber 22. The fixed extrusion block 27 synchronously drives the second adjusting column 26 to squeeze the connecting spring 25. The second adjusting column 26 moves in the column cavity 24 inside the first adjusting column 23, so that the fixed extrusion block 27 can be raised and lowered, which is convenient for the stamping upper mold 6 to stamp the metal bottom cover material plate of the stamping lower mold 7. The movement of the fixed extrusion block 27 in the lifting cavity 22 allows the stamping process to be flexibly adjusted, so that the metal bottom cover material plate can always remain stable during the stamping process, reduce stamping errors caused by position deviations, reduce waste and defective products, and improve material utilization, thereby reducing production costs, reducing the risk of worker injuries, and improving operational safety.

[0039] The automatic unloading assembly includes a second movable groove 28 and an unloading movable plate 29. The second movable groove 28 is opened inside the stamping lower mold 7. The unloading movable plate 29 is installed on the outer surface of the first limiting column 18. The outer surface of the unloading movable plate 29 is in active contact with the inner wall of the second movable groove 28. A gear bar 30 is installed on the outer surface of the unloading movable plate 29. A waste blowing cavity 31 is opened inside the stamping lower mold 7. An air pipe interface 39 is evenly installed on the outer surface of the stamping lower mold 7. A ball screw 32 is movably installed on the inner wall of the waste blowing cavity 31. A screw slider 33 is movably installed on the outer surface of the ball screw 32. A gear ring 34 is installed on the outer surface of the rod 32, and the outer surface of the gear ring 34 meshes with the outer surface of the gear bar 30. Stabilizing sliders 35 are installed on both end surfaces of the ball screw 32. A stabilizing slide cavity 36 is opened inside the stamping lower mold 7. The outer surface of the stabilizing slider 35 is in active contact with the inner wall of the stabilizing slide cavity 36. A connecting bracket 37 is installed on the outer surface of the stabilizing slider 35. A waste mold plate 38 is installed on the outer surface of the connecting bracket 37. The outer surface of the waste mold plate 38 is in active contact with the inner wall of the mold cavity 8. The control motor 9 works in reverse, so that the waste mold plate 38 brings the hole material into The waste blowing chamber 31 is entered, and the air pipe is connected to the air pipe interface 39 to blow the waste blowing chamber 31, so that the waste of the gas guide hole, the air bag expansion hole and the rivet hole is automatically blown, and the waste of the gas guide hole, the air bag expansion hole and the rivet hole is automatically cleaned. The strong blowing of the gas can effectively automatically remove the waste of the gas guide hole, the air bag expansion hole and the rivet hole, reduce manual intervention, improve work efficiency, greatly shorten the cleaning time of the stamping lower die 7, make the production process smoother, improve the overall production efficiency, reduce the equipment downtime caused by waste blockage, and ensure that the waste of the gas guide hole, the air bag expansion hole and the rivet hole is cleaned thoroughly. The bottom helps to improve the quality of the subsequent processing of the metal bottom cover for the safety airbag, reduce the quality problems caused by the waste residue of the gas guide hole, the airbag expansion hole and the riveting hole, and move the waste mold plate 38 into the cavity 8 of the stamping lower mold 7, so that the horizontal plane of the waste mold plate 38 and the horizontal plane of the stamping lower mold 7 are in the same plane, ensuring that the metal bottom cover material plate is subjected to uniform force during the stamping process, reducing offset and deviation, thereby improving the accuracy of the stamped product, and maintaining the same plane can reduce the friction and wear between the parts of the stamping upper mold 6 and the stamping lower mold 7, extend the service life of the stamping upper mold 6 and the stamping lower mold 7, and reduce production costs.

[0040] The working principle and use process of the present invention are as follows: when it is necessary to punch gas guide holes, airbag expansion holes and riveting holes on the metal bottom cover plate of the safety airbag, the metal bottom cover material plate is placed on the punching lower die 7 platform inside the metal bottom cover punching machine 1, and the motor 9 is controlled by the controller to work, the motor 9 drives the rotating shaft 10 to rotate, the rotating shaft 10 drives the driving bevel gear 11 to rotate, the outer surface of the driving bevel gear 11 and the outer surface of the driven bevel gear 12 are meshed with each other, and the driving bevel gear 11 drives the driven bevel gear 12 to rotate. The wheel 12 rotates, the driven bevel gear 12 drives the rotating column 13 to rotate, the rotating column 13 drives the disc 14 to rotate, the disc 14 drives the three limit plates 15 to rotate, the synchronous adjustment cavity 16 inside the three limit plates 15 squeezes the outer surface of the second limit column 19, the second limit column 19 drives the first limit column 18 to stabilize in the limit block 17, the limit block 17 limits the first limit column 18 to only move in a straight line, so that the second limit column 19 is limited in the synchronous adjustment cavity 16. The first limit column 18 drives the adjusting block 21 to move linearly in the first moving groove 20, so that the three first limit columns 18 drive the adjusting block 21 and the fixed extrusion block 27 to move synchronously, so that the three fixed extrusion blocks 27 limit and fix the metal bottom cover material plate above the stamping lower mold 7, so that the stamping positions of the gas guide holes, airbag expansion holes and riveting holes after stamping are accurate, avoiding stamping errors caused by position deviations, greatly improving the stamping efficiency of the metal bottom cover punching machine 1, and shortening the replacement and debugging time. The accuracy of the airbag expansion holes ensures that the airbag can be inflated quickly and effectively during a collision, reducing the risk of injury to the occupants and improving the overall safety. The accuracy of the gas guide holes ensures smooth gas flow, improves the inflation speed of the airbag, and enhances its responsiveness. The accuracy of the riveting hole position helps to achieve a stable connection of the structure, ensures a firm connection between the metal bottom cover and the airbag, and increases the strength and reliability of the overall structure. The accurate hole position makes the assembly and maintenance process more convenient, and reduces the assembly difficulties caused by inaccurate position.

[0041] The first limiting column 18 synchronously drives the material removal moving plate 29 to move linearly in the second moving groove 28, and the material removal moving plate 29 synchronously drives the gear bar 30 to move, and the outer surface of the gear bar 30 is meshed with the outer surface of the gear ring 34, and the gear bar 30 drives the gear ring 34 to rotate, and the gear ring 34 drives the ball screw 32 to rotate, and the ball screw 32 cooperates with the screw slider 33, and the screw slider 33 drives the two stable sliders 35 to move up and down in the stable slide cavity 36, so that the stable slider 35 The connecting bracket 37 and the waste mold plate 38 are stably driven to move up and down, so that the waste mold plate 38 is moved into the mold cavity 8 of the stamping lower mold 7, so that the horizontal plane of the waste mold plate 38 and the horizontal plane of the stamping lower mold 7 are in the same plane, ensuring that the metal bottom cover material plate is subjected to uniform force during the stamping process, reducing offset and deviation, thereby improving the accuracy of the stamped product. Maintaining the same plane can reduce the friction and wear between the components of the stamping upper mold 6 and the stamping lower mold 7, extend the service life of the stamping upper mold 6 and the stamping lower mold 7, and reduce production costs.

[0042] The hydraulic press 2 is working, and the hydraulic press 2 drives the connecting movable plate 4 and the two limit sliding blocks 5 to move stably on the limit sliding rails 3, so that the connecting movable plate 4 drives the stamping upper mold 6 to move for stamping. When the stamping upper mold 6 stamps the stamping lower mold 7, the stamping upper mold 6 synchronously extrude the fixed extrusion block 27, and the fixed extrusion block 27 moves in the lifting chamber 22. The fixed extrusion block 27 synchronously drives the second adjusting column 26 to extrude the connecting spring 25, and the second adjusting column 26 moves in the column cavity 24 inside the first adjusting column 23, so that the fixed extrusion block 27 can be lifted and lowered, which is convenient for the stamping upper mold 6 to stamp the metal bottom cover material plate of the stamping lower mold 7. The movement of the fixed extrusion block 27 in the lifting chamber 22 enables the stamping process to be flexibly adjusted, so that the metal bottom cover material plate can always remain stable during the stamping process, reduce the stamping error caused by position deviation, reduce waste and defective products, and improve material utilization, thereby reducing production costs, reducing the risk of worker injury, and improving operational safety.

[0043] When the stamping of the metal bottom cover material plate is completed, the control motor 9 works in reverse, so that the waste mold plate 38 carries the hole material into the waste blowing chamber 31, and the air pipe interface 39 is connected to the air pipe to blow the material into the waste blowing chamber 31, so that the waste materials of the gas guide holes, air bag expansion holes and riveting holes are automatically blown, and the waste materials of the gas guide holes, air bag expansion holes and riveting holes are automatically cleaned. By using the strong blowing of gas, the waste materials of the gas guide holes, air bag expansion holes and riveting holes are effectively and automatically removed, reducing manual intervention, improving work efficiency, greatly shortening the cleaning time of the stamping lower mold 7, making the production process smoother, improving the overall production efficiency, reducing the equipment downtime caused by waste blockage, ensuring that the waste materials of the gas guide holes, air bag expansion holes and riveting holes are thoroughly cleaned, which helps to improve the quality of the subsequent processing of the metal bottom cover for the safety airbag and reduce the quality problems caused by the residual waste materials of the gas guide holes, air bag expansion holes and riveting holes.

[0044] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations 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 includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0045] 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 high-efficiency metal undercover punching device for automobile safety airbags, comprising a metal undercover punching machine (1) and a hydraulic press (2) installed inside the metal undercover punching machine (1), characterized in that: A stamping moving assembly is installed on the outer surface of the output end of the hydraulic press (2), a stamping upper die (6) is installed on the outer surface of the stamping moving assembly, a stamping lower die (7) is installed inside the metal bottom cover stamping machine (1), a die cavity (8) is provided on the outer surface of the stamping lower die (7) and the outer surface of the stamping upper die (6), a power synchronization fixing assembly is installed inside the metal bottom cover stamping machine (1), and an automatic material discharge assembly is installed on the outer surface of the power synchronization assembly; The power synchronous fixing component comprises a motor (9) and a transmission system. The motor (9) is installed inside the metal bottom cover punching machine (1). The outer surface of the output end of the motor (9) is installed with the transmission system. The outer surface of the transmission system is installed with a disk (14). The outer surface of the disk (14) is evenly distributed and installed with three limit dial plates (15). The inside of the stamping lower die (7) is installed with three limit blocks (17). The insides of the three limit blocks (17) are all movably installed with first limit columns (18). The outer surfaces of the three first limit columns (18) are all installed with second limit columns (19). The insides of the three limit blocks (17) are all provided with synchronous adjustment chambers (16). The outer surfaces of the three second limit columns (19) are in movably contact with the inner wall of the synchronous adjustment chamber (16). The outer surfaces of the three first limit columns (18) are all installed with adjustment blocks (21). The insides of the three adjustment blocks (21) are all installed with stamping telescopic reset components.

2. The high-efficiency metal bottom cover punching device for automobile airbag according to claim 1 is characterized in that: The punching system comprises a rotating shaft (10) and a driving bevel gear (11), wherein the rotating shaft (10) is mounted on the outer surface of the output end of the motor (9), one end surface of the rotating shaft (10) is in active contact with the inside of the metal bottom cover punching machine (1), and the driving bevel gear (11) is mounted on the outer surface of the rotating shaft (10).

3. The high-efficiency metal bottom cover punching device for automobile airbag according to claim 2 is characterized in that: A rotating column (13) is movably installed inside the lower stamping die (7) and inside the metal bottom cover stamping machine (1), and a driven helical gear (12) is installed on one end surface of the rotating column (13).

4. The high-efficiency metal bottom cover punching device for automobile airbag according to claim 3 is characterized in that: The outer surface of the driven helical gear (12) meshes with the outer surface of the driving helical gear (11), and the other end surface of the rotating column (13) is fixedly connected to the bottom end surface of the disc (14).

5. The high-efficiency metal bottom cover punching device for automobile airbag according to claim 1, characterized in that: The stamping moving assembly comprises a connecting moving plate (4) and two limiting slide blocks (5), wherein the connecting moving plate (4) is mounted on the outer surface of the output end of the hydraulic press (2), and the two limiting slide blocks (5) are correspondingly mounted on the two end surfaces of the connecting moving plate (4), and two limiting slide rails (3) are mounted inside the metal bottom cover stamping machine (1), and the outer surfaces of the two limiting slide rails (3) are in movable contact with the outer surfaces of the limiting slide blocks (5), and the bottom end surface of the connecting moving plate (4) is fixedly connected to the top end surface of the stamping upper die (6).

6. The high-efficiency metal bottom cover punching device for automobile airbag according to claim 1, characterized in that: The stamping telescopic reset assembly comprises a lifting chamber (22) and a first adjusting column (23); the lifting chamber (22) is arranged inside the adjusting block (21); the first adjusting column (23) is installed on the inner wall of the lifting chamber (22); a column chamber (24) is arranged inside the first adjusting column (23); a first movable groove (20) is arranged on the outer side of the stamping lower die (7); the inner wall of the first movable groove (20) is in movable contact with the outer surface of the adjusting block (21).

7. The high-efficiency metal bottom cover punching device for automobile airbag according to claim 6, characterized in that: A connecting spring (25) is installed on the inner wall of the column cavity (24), a second adjusting column (26) is installed on one end surface of the connecting spring (25), the outer surface of the second adjusting column (26) is in movable contact with the inner wall of the column cavity (24), a fixed extrusion block (27) is installed on the top surface of the second adjusting column (26), and the outer surface of the fixed extrusion block (27) is in movable contact with the inner wall of the lifting cavity (22).

8. The high-efficiency metal bottom cover punching device for automobile safety airbag according to claim 7, characterized in that: The automatic material removal component comprises a second movable groove (28) and a material removal movable plate (29), wherein the second movable groove (28) is arranged inside the stamping lower die (7), and the material removal movable plate (29) is installed on the outer surface of the first limiting column (18), and the outer surface of the material removal movable plate (29) is in movable contact with the inner wall of the second movable groove (28).

9. The high-efficiency metal bottom cover punching device for automobile airbag according to claim 8, characterized in that: A gear bar (30) is installed on the outer surface of the material removal moving plate (29), a waste material blowing chamber (31) is opened inside the stamping lower die (7), an air pipe interface (39) is evenly installed on the outer surface of the stamping lower die (7), a ball screw (32) is movably installed on the inner wall of the waste material blowing chamber (31), a screw slider (33) is movably installed on the outer surface of the ball screw (32), a gear ring (34) is installed on the outer surface of the ball screw (32), and the outer surface of the gear ring (34) is meshed with the outer surface of the gear bar (30).

10. The high-efficiency metal bottom cover punching device for automobile safety airbag according to claim 9, characterized in that: Both end surfaces of the ball screw (32) are installed with stabilizing sliders (35), the interior of the stamping lower mold (7) is provided with a stabilizing slide cavity (36), the outer surface of the stabilizing slider (35) is in active contact with the inner wall of the stabilizing slide cavity (36), the outer surface of the stabilizing slider (35) is installed with a connecting bracket (37), the outer surface of the connecting bracket (37) is installed with a waste mold plate (38), and the outer surface of the waste mold plate (38) is in active contact with the inner wall of the mold cavity (8).

Images