A laser welding and air tightness test all-in-one machine for aerosol cartridges

Abstract

This invention discloses an integrated machine for laser welding and airtightness testing of atomized projectiles, comprising a frame, a Y-axis module, a rotary welding fixture, a drive mechanism, a transfer mechanism, at least two lasers, and multiple airtightness testing fixtures. The rotary welding fixture is connected to the Y-axis module and is used to clamp multiple atomized projectiles and drive them to rotate. The Y-axis module is used to drive the rotary welding fixture to move in the Y direction. Both lasers are located above the Y-axis module. The drive mechanism is connected to the two lasers and is used to drive the two lasers to move in the horizontal X direction and the vertical Z direction. The transfer mechanism is used to transfer multiple atomized projectiles, which have been welded by the lasers and are located on the rotary welding fixture, to multiple airtightness testing fixtures. The airtightness testing fixtures are used to test the airtightness of the atomized projectiles. This invention mainly solves the technical problem of how to improve the efficiency and accuracy of laser welding and airtightness testing of atomized projectiles.

Description

Technical Field

[0001] This invention relates to the technical field of electronic atomizer manufacturing, and in particular to an integrated machine for laser welding and airtightness testing of atomizing bullets. Background Technology

[0002] Currently, electronic atomizers mainly consist of a power supply unit and an atomizing cartridge. The power supply unit provides the necessary electrical energy for the atomizing cartridge to atomize, meeting the user's need for wireless use. Most atomizing cartridges are designed to be separate from the power supply unit. During assembly, one part of the core components can be pre-installed inside the atomizing cartridge, and the other part can be installed inside the power supply unit. Finally, the atomizing cartridge and the power supply unit are simply connected. This separate connection simplifies assembly. Furthermore, the separate cartridge design allows users to easily switch between different flavors at low cost. Specifically, the liquid reservoir inside the atomizing cartridge is usually designed to be formed by the inner wall of the outer shell and the outer wall of the inner shell. This improves the compactness of the atomizing cartridge's structure. Moreover, this method facilitates uniform liquid supply to the atomizing components in the circumferential direction, thereby improving liquid supply uniformity and atomization efficiency. More specifically, most current outer and inner shells are designed to be laser-welded together to ensure that the inner and outer shells do not shift relative to each other, thereby ensuring that the liquid in the storage chamber does not leak out.

[0003] Currently, laser welding machines used for laser welding the outer and inner shells of atomizing bombs are all single-laser devices, which suffer from low production efficiency and large footprint. Furthermore, after laser welding, atomizing bombs require airtightness testing to verify whether there is any leakage at the weld seam between the outer and inner shells. Currently, this requires manual placement of the welded atomizing bombs into an airtightness testing fixture, a labor-intensive process that results in low overall production efficiency. Moreover, manual testing carries the risk of missed tests or improper placement of the atomizing bombs in the testing fixture, potentially leading to the misjudgment of qualified bombs as unqualified, and the risk of unqualified bombs being released due to missed inspection. Therefore, a machine integrating laser welding and airtightness testing of atomizing bombs needs to be designed to improve the efficiency and accuracy of both processes. Summary of the Invention

[0004] This invention provides an integrated machine for laser welding and airtightness testing of atomized projectiles, mainly addressing the technical problem of how to improve the efficiency and accuracy of laser welding and airtightness testing of atomized projectiles.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A laser welding and airtightness testing integrated machine for atomized projectiles includes a frame, a Y-axis module, a rotary welding fixture, a drive mechanism, a transfer mechanism, at least two lasers, and multiple airtightness testing fixtures. The Y-axis module, the drive mechanism, the transfer mechanism, and the multiple airtightness testing fixtures are all connected to the frame. The rotary welding fixture is connected to the Y-axis module and is used to clamp multiple atomized projectiles and drive the multiple atomized projectiles to rotate. The Y-axis module is used to drive the rotary welding fixture to move in the transverse Y direction. The two lasers are both located above the Y-axis module and are used to weld the atomized projectiles clamped on the rotary welding fixture. The drive mechanism is connected to the two lasers and is used to drive the two lasers to move in the transverse X direction and the vertical Z direction. The transfer mechanism is used to transfer the multiple atomized projectiles located on the rotary welding fixture and welded by the lasers to the multiple airtightness testing fixtures. The airtightness testing fixtures are used to automatically perform airtightness testing on the atomized projectiles.

[0006] In one of the technical solutions, the rotary welding fixture includes a mounting base, a rotary motor, multiple clamping seats, multiple pressure blocks, and at least one clamping cylinder; The mounting base is connected to the Y-axis module. The rotary motor and the clamping cylinder are both fixed on the mounting base. Multiple clamping seats are rotatably connected to the mounting base and used to position the atomizing bullet. The output shaft of the rotary motor is connected to the clamping seat and used to drive the clamping seat to rotate. A pressure block is provided at an adjacent position of each clamping seat. The pressure block is connected to the clamping cylinder through an adapter. Under the drive of the clamping cylinder, the pressure block is used to clamp the atomizing bullet together with the clamping seat. The pressure block is rotatably connected to the adapter, and the axis of rotation of the pressure block relative to the adapter coincides with the axis of rotation of the clamping seat relative to the mounting base, so that the pressure block can rotate synchronously with the clamping seat when clamping the atomizing bullet.

[0007] In one of the technical solutions, a plurality of clamping seats are arranged at intervals along the X direction, and a synchronous pulley is fixed to the end of each clamping seat facing away from the pressure block. At least two of the clamping seats are connected by a synchronous belt, so that the rotary motor can simultaneously drive two clamping seats to rotate synchronously.

[0008] In one of the technical solutions, the rotary welding fixture includes four clamping seats arranged at intervals along the X direction, four pressure blocks arranged at intervals along the X direction, two rotary motors, and two clamping cylinders. One of the rotary motors simultaneously drives two adjacent clamping seats to rotate synchronously, and the other rotary motor simultaneously drives two other adjacent clamping seats to rotate synchronously. Each of the two clamping cylinders is connected to an adapter, and two pressure blocks are rotatably connected to one of the adapters. The two lasers are arranged at intervals along the X direction, and the four clamps are divided into two groups. Each group of clamps includes two adjacent clamps. The distance between the two clamps in the X direction is D, and the distance between the two lasers in the X direction is also D. The number of the airtightness testing fixtures is at least four, and the transfer mechanism is used to transfer four atomizing bombs to the four airtightness testing fixtures at one time.

[0009] In one technical solution, there are two Y-axis modules, which are arranged at intervals along the X direction. Each Y-axis module is connected to a set of rotary welding fixtures, which are used to clamp four atomizing bullets. Each Y-axis module has a set of airtightness testing fixtures on one side in the Y direction. Each set of airtightness testing fixtures includes four airtightness testing fixtures arranged sequentially along the X direction. The transfer mechanism is a transport robot located between the two sets of airtightness testing fixtures. The transport robot is used to transfer four atomizing bullets to one of the sets of airtightness testing fixtures at once.

[0010] In one of the technical solutions, the drive mechanism includes an X-axis module and a Z-axis module connected together. The X-axis module is fixed on the frame and spans the two Y-axis modules in the X direction. Both lasers are connected to the Z-axis module.

[0011] In one of the technical solutions, the handling robot includes a base, a first swing arm, a second swing arm, a lead screw module, and four pneumatic grippers; The first swing arm rotates relative to the base about a vertical axis, and the second swing arm rotates relative to the first swing arm about a vertical axis. All four pneumatic grippers are connected to the lead screw module. The lead screw module is rotatably connected to the second swing arm and is used to drive the four pneumatic grippers to move up and down in the vertical direction. The four pneumatic grippers are arranged at intervals along the X direction and are all used to hold the atomizing bullet.

[0012] In one of the technical solutions, the rotary welding fixture further includes multiple sensors fixed on the mounting base. The sensors are used to sense whether an atomizing bullet is clamped on the mounting base, and the sensors are connected to the laser signal.

[0013] In one of the technical solutions, the airtightness testing fixture includes a support base, a sealing block, a drive cylinder, and an inflation head; The support base, the sealing block, and the driving cylinder are all fixed relative to the frame. The support base is provided with an upward-opening limiting groove for inserting the atomizing bullet from top to bottom. The sealing block and the inflation head are respectively located on opposite sides of the support base. The driving cylinder is connected to the inflation head and is used to drive the inflation head and the sealing block to clamp the atomizing bullet together. The sealing block is used to seal the opening at one end of the atomizing bullet, and the inflation head is used to seal the outer edge of the mist outlet at the other end of the atomizing bullet. The inflation head is provided with an inflation channel for inflating air from the mist outlet of the atomizing bullet into the atomizing bullet.

[0014] In one of the technical solutions, the integrated machine for laser welding and airtightness testing of the atomizing bomb also includes a defective product collection box and a conveying device; the conveying device and the defective product collection box are both arranged within the driving range of the transfer mechanism, the transfer mechanism is also used to transfer the atomizing bomb that has passed the airtightness test to the conveying device, and the transfer mechanism is used to transfer the atomizing bomb that has failed the airtightness test to the defective product collection box.

[0015] Compared with the prior art, the integrated machine for laser welding and airtightness testing of atomized bombs provided by the present invention has at least the following beneficial effects: The working process of this integrated laser welding and airtightness testing machine for atomized bombs is as follows: The atomized bomb is clamped onto a rotary welding fixture manually or automatically. Then, the Y-axis module drives the rotary welding fixture to move below two lasers. The two lasers simultaneously perform laser welding on the two atomized bombs on the rotary welding fixture. During the welding process, the rotary welding fixture drives the atomized bomb to rotate, ensuring that the lasers can weld the entire circumference of the atomized bomb. Simultaneously, because the surface of the atomized bomb is curved, the two lasers, driven by the drive mechanism, automatically move along the Z-axis... The height is adjusted to ensure that the distance between the laser and the surface of the atomized projectile remains consistent, guaranteeing reliable laser welding of the projectile. Furthermore, the two lasers, driven by the drive mechanism, can move in the X-direction, enabling rapid laser welding of multiple projectiles in that direction. After all projectiles on the rotary welding fixture have been welded, the Y-axis module drives the rotary welding fixture to the range of motion of the transfer mechanism. The transfer mechanism then moves the projectiles from the rotary welding fixture to the airtightness testing fixture, which automatically performs airtightness testing on the projectiles.

[0016] As can be seen from the above, this solution can automatically complete both the welding and airtightness testing of the atomizing projectiles. This improves the efficiency of both laser welding and airtightness testing. Compared to manual airtightness testing, the automated airtightness testing method of this solution obviously has a higher accuracy rate and avoids the risk of misjudging good products or defective products due to improper placement or missed testing. In addition, this solution uses two lasers, which further improves the efficiency of laser welding of atomizing projectiles compared to the traditional single-laser method. Furthermore, this solution uses multiple airtightness testing fixtures, which can simultaneously test multiple atomizing projectiles, further improving the efficiency of airtightness testing. Ultimately, this improves the production efficiency and yield of electronic atomizers, reduces the impact of human factors, and enhances the company's production benefits. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of an integrated machine for laser welding and airtightness testing of atomized projectiles provided in this application embodiment; Figure 2 This is a schematic diagram of the structure of the rotary welding fixture 3 provided in the embodiments of this application; Figure 3 This is a schematic diagram of the structure of multiple airtightness testing fixtures provided in the embodiments of this application.

[0019] Figure label: 1. Frame; 2. Y-axis module; 3. Rotary welding fixture; 31. Mounting base; 32. Rotary motor; 33. Clamping base; 34. Pressure block; 35. Clamping cylinder; 36. Adapter base; 37. Sensor; 38. Synchronous pulley; 39. Synchronous belt; 4. Drive mechanism; 41. X-axis module; 42. Z-axis module; 5. Transfer mechanism; 51. Base; 52. First swing arm; 53. Second swing arm; 54. Lead screw module; 55. Pneumatic gripper; 6. Laser; 7. Air tightness testing fixture; 70. Air tightness testing fixture assembly; 71. Support base; 711. Limiting groove; 72. Sealing block; 73. Drive cylinder; 74. Inflation head; 741. Inflation channel; 8. Conveying device; 10. Atomizing bullet. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0022] It should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] Please refer to the following: Figures 1 to 3This invention provides an integrated machine for laser welding and airtightness testing of atomized projectiles, mainly comprising a frame 1, a Y-axis module 2, a rotary welding fixture 3, a drive mechanism 4, a transfer mechanism 5, at least two lasers 6, and multiple airtightness testing fixtures 7. The Y-axis module 2, drive mechanism 4, transfer mechanism 5, and multiple airtightness testing fixtures 7 are fixed relative to the frame 1. The rotary welding fixture 3 is connected to the Y-axis module 2 and is specifically used to clamp multiple atomized projectiles 10 and drive them to rotate. The Y-axis module 2 can be a lead screw module, a synchronous belt module, or a linear motor, etc., and is specifically used to drive the rotary welding fixture 3 in the transverse Y-axis direction. The two lasers 6 are located above the Y-axis module 2 and are used to weld the atomized bullets 10 clamped on the rotary welding fixture 3. The drive mechanism 4 connects the two lasers 6. The drive mechanism 4 can be a mechanism composed of multiple high-precision linear modules or linear motors connected together. The drive mechanism 4 is used to drive the two lasers 6 to move in the horizontal X direction and the vertical Z direction. The transfer mechanism 5 can be a multi-axis linear module or a multi-axis robot. The transfer mechanism 5 is specifically used to transfer the multiple atomized bullets 10 located on the rotary welding fixture 3 and welded by the lasers 6 to multiple air tightness test fixtures 7. The air tightness test fixtures 7 are specifically used to automatically perform air tightness tests on the atomized bullets 10.

[0026] The working process of the integrated laser welding and airtightness testing machine for atomized bombs in this embodiment is as follows: The atomizing bomb 10 is clamped onto the rotary welding fixture 3 manually or automatically. Then, the Y-axis module 2 drives the rotary welding fixture 3 to move below the two lasers 6. The two lasers 6 simultaneously perform laser welding on the two atomizing bombs 10 on the rotary welding fixture 3. During the welding process, the rotary welding fixture 3 drives the atomizing bomb 10 to rotate, so that the lasers 6 can weld the entire circumference of the atomizing bomb 10. At the same time, since the surface of the atomizing bomb 10 is curved, the two lasers 6 can automatically adjust their height along the Z-direction under the drive mechanism 4, so that the lasers 6 can reach the atomizing bomb 10. The surface distance can always be kept consistent, ensuring that the atomized bullet 10 can be reliably welded by the laser 6. In addition, the two lasers 6 can also move in the X direction under the drive of the drive mechanism 4, so that the two lasers 6 can quickly perform laser welding on multiple atomized bullets 10 in the X direction. After all the atomized bullets 10 on the rotary welding fixture 3 have been welded, the Y-axis module 2 drives the rotary welding fixture 3 to move to the range of motion of the transfer mechanism 5. Then, the transfer mechanism 5 transfers the atomized bullets 10 on the rotary welding fixture 3 to the airtightness test fixture 7, and the airtightness test fixture 7 automatically performs airtightness testing on the atomized bullets 10.

[0027] As can be seen from the above, this solution can automatically complete both the welding and airtightness testing of the atomizing bomb 10, thereby improving the efficiency of both laser welding and airtightness testing. Compared with manual airtightness testing, the accuracy of automated airtightness testing is obviously higher, and it also avoids the risk of misjudging good products or defective products due to improper placement or missed testing. In addition, this solution uses two lasers 6, which further improves the efficiency of laser welding of the atomizing bomb 10 compared with the traditional single laser method. Furthermore, this solution uses multiple airtightness testing fixtures 7, which can simultaneously perform airtightness testing on multiple atomizing bombs 10, thereby further improving the efficiency of airtightness testing. Ultimately, this helps to improve the production efficiency and yield of electronic atomizers, reduce the impact of human factors, and improve the production efficiency of enterprises.

[0028] It should be noted that in this embodiment, the outer shell and inner shell of the atomizing bomb are actually laser welded together. After the outer shell and inner shell are welded together, they are assembled into a storage chamber for storing the liquid to be atomized. Before the inner shell is welded to the outer shell, the atomizing components can be pre-assembled in the inner shell. Then the inner shell is installed into the outer shell and laser welded to the outer shell.

[0029] Please refer to the following: Figure 1 and Figure 2The rotary welding fixture 3 specifically includes a mounting base 31, a rotary motor 32, multiple clamping seats 33, multiple pressure blocks 34, and at least one clamping cylinder 35. The mounting base 31 is connected to the aforementioned Y-axis module 2, enabling the Y-axis module 2 to drive the entire rotary welding fixture 3 to move linearly in the Y direction. The rotary motor 32 and the clamping cylinder 35 are both fixed to the mounting base 31. The multiple clamping seats 33 are rotatably connected to the mounting base 31, ensuring that all clamping seats 33 can rotate with high precision. In fact, each clamping seat 33 is used to accommodate and position the atomizing projectile 10. In this configuration, the output shaft of the rotary motor 32 is directly or indirectly connected to the clamping base 33. The rotary motor 32 is specifically used to drive the clamping base 33 to rotate. Each clamping base 33 has a pressure block 34 at an adjacent position. The pressure block 34 is connected to the clamping cylinder 35 through the adapter 36. The clamping cylinder 35 is preferably fixed on the mounting base 31. Correspondingly, the piston rod of the clamping cylinder 35 is fixedly connected to the adapter 36. The pressure block 34 and the adapter 36 are rotatably connected. Furthermore, the axis of rotation of the pressure block 34 relative to the adapter 36 and the axis of rotation of the clamping base 33 relative to the mounting base 31 are both pointing in the horizontal direction and coincide with each other. During operation, the atomizing bomb 10 is placed on the clamping seat 33 manually or automatically. Then, the pressure block 34, driven by the clamping cylinder 35, together with the clamping seat 33, holds the atomizing bomb 10. When the atomizing bomb 10 is being welded, the rotary motor 32 drives the clamping seat 33 to rotate one revolution, thereby causing the atomizing bomb 10 to rotate. During the rotation of the atomizing bomb 10, the pressure block 34 also rotates synchronously with the atomizing bomb 10, so that the atomizing bomb 10 can always be stably held by the pressure block 34 and the clamping seat 33 during the rotation. This ensures that the atomizing bomb 10 will not shift its position during the welding process, thereby improving the quality of laser welding of the atomizing bomb 10 and significantly reducing the risk of leakage caused by poor welding of the atomizing bomb 10.

[0030] Please see Figure 2 The rotary welding fixture 3 also includes multiple sensors 37 fixed on the mounting base 31. The sensors 37 are used to sense whether an atomizing bomb 10 is clamped on the clamping base 33. These sensors 37 are indirectly connected to the aforementioned laser 6. When the sensor 37 senses that an atomizing bomb 10 is missing from the clamping base 33, the sensor 37 feeds this missing information back to the control system. The control system will control the corresponding laser 6 not to emit laser light at the location of the missing atomizing bomb 10, so as to avoid the laser light emitted by the laser 6 from hitting the clamping base 33 and causing damage to the clamping base 33. If the surface of the clamping base 33 is damaged, the positioning accuracy of the clamping base 33 will be poor, which will lead to poor welding of the clamped atomizing bomb 10.

[0031] Please refer to them again. Figure 1 and Figure 2Multiple clamping seats 33 are actually arranged at intervals along the X direction. Each clamping seat 33 has a synchronous pulley 38 fixed to the end facing away from the pressure block 34. The synchronous pulleys 38 of at least two clamping seats 33 are connected by a synchronous belt 39. With this design, when the rotary motor 32 drives one of the clamping seats 33 to rotate, it will also drive the other clamping seat 33 to rotate. That is, the rotary motor 32 can drive two clamping seats 33 to rotate synchronously at the same time. This not only helps to reduce the number of rotary motors 32 used, thereby reducing manufacturing costs, but also ensures that the two clamping seats 33 can rotate synchronously at the same angular velocity, improving the reliability of the two lasers 6 simultaneously performing laser welding on the atomized bullets 10 on the two clamping seats 33.

[0032] Please refer to them again. Figure 1 and Figure 2 More preferably, the rotary welding fixture 3 includes four clamping seats 33 spaced apart along the X direction, four pressure blocks 34 spaced apart along the X direction, two rotary motors 32, and two clamping cylinders 35. One rotary motor 32 simultaneously drives two adjacent clamping seats 33 to rotate synchronously, and the other rotary motor 32 simultaneously drives the other two adjacent clamping seats 33 to rotate synchronously. Each of the two clamping cylinders 35 is connected to an adapter 36, and two pressure blocks 34 are rotatably connected to one adapter 36. Correspondingly, the two lasers 6 are also spaced apart along the X direction. The four clamping seats 33 are divided into two groups, and each group of clamping seats 33 includes two adjacent clamping seats 33. The distance between the two clamping seats 33 in the X direction is D, and the distance between the two lasers 6 in the X direction is also D. This design allows two lasers 6 to simultaneously weld two atomizing bullets 10. Furthermore, after welding two atomizing bullets 10, the two lasers 6 only need to move a short distance in the X direction to immediately laser weld the other two atomizing bullets 10, thus achieving the goal of quickly welding four atomizing bullets 10. In addition, the number of airtightness testing fixtures 7 is at least four. The aforementioned transfer mechanism 5 is used to transfer four atomizing bullets 10 to four airtightness testing fixtures 7 at once, thereby achieving the goal of performing airtightness testing on four atomizing bullets 10 simultaneously, which further improves the production efficiency of electronic atomizers.

[0033] It should be further explained here that, since the time required to perform airtightness testing on multiple atomizing bullets 10 is relatively fixed, the design of four clamping seats 33 on the rotary welding fixture 3 is a specific choice given the use of two lasers 6; the number of clamping seats 33 is not a conventional choice. Specifically, if the number of clamping seats 33 on the rotary welding fixture 3 is too large, even with two lasers 6, the time required to weld all the atomizing bullets 10 on all clamping seats 33 will be far greater than the time required to complete the airtightness test on multiple atomizing bullets 10. In this case, multiple airtightness testing fixtures 7 will be in a standby state for a long time after the test is completed. In other words, if the number of clamping seats 33 on the rotary welding fixture 3 is too large, multiple airtightness testing fixtures 7 cannot be in a continuous working state, which will limit the production efficiency of electronic atomizers. If the number of clamping seats 33 on the rotary welding fixture 3 is too small, after the two lasers 6 have finished welding multiple atomizing bullets 10, there will be a situation where multiple atomizing bullets 10 from the previous batch have not yet completed the airtightness test. This will cause the two lasers 6 to be in a standby waiting state for a long time. In other words, if the number of clamping seats 33 on the rotary welding fixture 3 is too small, the two lasers 6 cannot be in a continuous working state, which will also limit the production efficiency of the electronic atomizer.

[0034] Please refer to them again. Figure 1 and Figure 2Preferably, there are two Y-axis modules 2, which are arranged at intervals along the X direction. Each Y-axis module 2 is connected to a set of rotary welding fixtures 3, which are used to clamp four atomizing bullets 10. Each Y-axis module 2 is provided with a set of air tightness test fixtures 70 on one side of the Y direction. Each set of air tightness test fixtures 70 includes four air tightness test fixtures 7 arranged sequentially along the X direction. The aforementioned transfer mechanism 5 is a transport robot set between the two sets of air tightness test fixtures 70. The transport robot is used to transfer four atomizing bullets 10 to one of the sets of air tightness test fixtures 70 at a time. Specifically, the dual Y-axis module 2 is equipped with two sets of rotary welding fixtures 3, forming a dual welding station. This allows for alternating operation between the stations. While one set of rotary welding fixtures 3 is performing laser welding, the other set can be manually pre-loaded with multiple atomizing bullets 10. This eliminates the idle time of the laser 6 waiting for the atomizing bullets 10 to be welded, further improving the production efficiency of the electronic atomizer. A transport robot is positioned between the two airtightness testing fixture groups 70. The robot's balanced movement reduces the time spent on transport actions, perfectly matching the alternating material output rhythm of the dual welding stations. This achieves rapid material supply to both airtightness testing fixture groups 70, solving the problems of excessively long laser 6 idle time and low production capacity in single-station solutions. Compared to linear module transfer mechanisms, the transport robot occupies less space on the frame 1, facilitating a compact equipment layout and adapting to the limited installation space inside the integrated machine.

[0035] Please see Figure 1 This handling robot specifically includes a base 51, a first swing arm 52, a second swing arm 53, a lead screw module 54, and four pneumatic grippers 55. The base 51 is fixed to the frame 1. The first swing arm 52 rotates relative to the base 51 about a vertical axis, and the second swing arm 53 rotates relative to the first swing arm 52 about a vertical axis. All four pneumatic grippers 55 are connected to the lead screw module 54, which is rotatably connected to the second swing arm 53. The lead screw module 54 drives the four pneumatic grippers 55 to move vertically. The four pneumatic grippers 55 are spaced apart along the X-direction and are used to grip the atomized projectiles 10. This design gives the handling robot three rotational degrees of freedom and one vertical degree of freedom, enabling it to simultaneously transfer four atomized projectiles 10 from the rotary welding fixture 3 to four airtightness testing fixtures 7.

[0036] Please refer to it again. Figure 1The drive mechanism 4 includes a connected X-axis module 41 and a Z-axis module 42. The X-axis module 41 is fixed on the frame 1 and spans two Y-axis modules 2 in the X direction. Both lasers 6 are connected to the Z-axis module 42. Both the X-axis module 41 and the Z-axis module 42 can be selected as high-precision lead screw modules or linear motors. The X-axis module 41 can drive the two lasers 6 to move laterally in the X direction, taking into account the welding needs of the atomizing bombs 10 on the two sets of rotary welding fixtures 3. The Z-axis module 42 realizes the height adjustment of the two lasers 6, compensates for the laser focal length in real time, and ensures that the laser focus always falls on the arc surface of the atomizing bomb 10 shell, ensuring the welding penetration and weld quality.

[0037] Please see Figure 3 The airtightness testing fixture 7 specifically includes a support base 71, a sealing block 72, a drive cylinder 73, and an inflation head 74. The support base 71, the sealing block 72, and the drive cylinder 73 are all fixed relative to the frame 1. The support base 71 is provided with an upward-opening limiting groove 711 for inserting the atomizing bullet 10 from top to bottom. The sealing block 72 and the inflation head 74 are respectively located on opposite sides of the support base 71. The drive cylinder 73 is connected to the inflation head 74 and is used to drive the inflation head 74 and the sealing block 72 to clamp the atomizing bullet 10 together. The sealing block 72 is used to seal the opening at one end of the atomizing bullet 10, and the inflation head 74 is used to seal the outer edge of the mist outlet at the other end of the atomizing bullet 10. The inflation head 74 is provided with an inflation channel 741 for inflating air from the mist outlet of the atomizing bullet 10 into the atomizing bullet. During operation, after the atomizing bullet 10 is placed into the limiting groove 711, the drive cylinder 73 drives the inflation head 74 to move. The inflation head 74 pushes the atomizing bullet 10 against the sealing block 72. At this time, the atomizing bullet 10 is sealed by the combined compression of the sealing block 72 and the inflation head 74. Then, an external air pump inflates the inflation channel 741. At this time, the air pressure sensor can be used to automatically determine whether there is a gas leak. If there is a leak, it indicates that the outer shell and inner shell of the atomizing bullet 10 are poorly welded. It is preferable that both the sealing block 72 and the inflation head 74 are coated with rubber, which can improve the reliability of the seal of the atomizing bullet 10, thereby improving the accuracy of the airtightness test of the atomizing bullet.

[0038] Please see Figure 1The integrated laser welding and airtightness testing machine for atomizing cartridges in this embodiment also includes a defective product collection box and a conveying device 8. Both the conveying device 8 and the defective product collection box are arranged within the driving range of the transfer mechanism 5. The transfer mechanism 5 is also used to transfer atomizing cartridges 10 that pass the airtightness test to the conveying device 8, and to transfer atomizing cartridges 10 that fail the airtightness test to the defective product collection box. In other words, the transfer mechanism 5 combines the functions of transferring atomizing cartridges 10 and sorting good and defective products. After the airtightness test is completed, the control system, based on the airtightness test signal, controls the transfer mechanism 5 to place the qualified atomizing cartridges 10 onto the conveying device 8, which then carries the atomizing cartridges 10 into the next process. Atomizing cartridges 10 with welding defects are collected by the defective product collection box. This design eliminates the need for an additional sorting robot, thus simplifying the overall machine structure and preventing defective products from mixing with good products, further ensuring the quality of the electronic atomizer.

[0039] The above are merely preferred embodiments of the present invention, and only specifically describe the technical principles of the present invention. These descriptions are only for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention, as well as other specific embodiments of the present invention that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present invention.

Claims

1. A laser welding and airtightness testing integrated machine for atomized projectiles, characterized in that, It includes a frame, a Y-axis module, a rotary welding fixture, a drive mechanism, a transfer mechanism, at least two lasers, and multiple airtightness testing fixtures; The Y-axis module, the drive mechanism, the transfer mechanism, and the multiple airtightness testing fixtures are all connected to the frame. The rotary welding fixture is connected to the Y-axis module and is used to clamp multiple atomized projectiles and drive the multiple atomized projectiles to rotate. The Y-axis module is used to drive the rotary welding fixture to move in the transverse Y direction. The two lasers are both located above the Y-axis module and are used to weld the atomized projectiles clamped on the rotary welding fixture. The drive mechanism is connected to the two lasers and is used to drive the two lasers to move in the transverse X direction and the vertical Z direction. The transfer mechanism is used to transfer the multiple atomized projectiles located on the rotary welding fixture and welded by the lasers to the multiple airtightness testing fixtures. The airtightness testing fixtures are used to automatically perform airtightness testing on the atomized projectiles.

2. The integrated machine for laser welding and airtightness testing of atomized projectiles as described in claim 1, characterized in that, The rotary welding fixture includes a mounting base, a rotary motor, multiple clamping seats, multiple pressure blocks, and at least one clamping cylinder. The mounting base is connected to the Y-axis module. The rotary motor and the clamping cylinder are both fixed on the mounting base. Multiple clamping seats are rotatably connected to the mounting base and used to position the atomizing bullet. The output shaft of the rotary motor is connected to the clamping seat and used to drive the clamping seat to rotate. A pressure block is provided at an adjacent position of each clamping seat. The pressure block is connected to the clamping cylinder through an adapter. Under the drive of the clamping cylinder, the pressure block is used to clamp the atomizing bullet together with the clamping seat. The pressure block is rotatably connected to the adapter, and the axis of rotation of the pressure block relative to the adapter coincides with the axis of rotation of the clamping seat relative to the mounting base, so that the pressure block can rotate synchronously with the clamping seat when clamping the atomizing bullet.

3. The integrated machine for laser welding and airtightness testing of atomized projectiles as described in claim 2, characterized in that, Multiple clamping seats are arranged at intervals along the X direction. Each clamping seat has a synchronous pulley fixed at one end facing away from the pressure block. At least two of the clamping seats' synchronous pulleys are connected by a synchronous belt, so that the rotary motor can simultaneously drive two clamping seats to rotate synchronously.

4. The integrated machine for laser welding and airtightness testing of atomized projectiles as described in claim 3, characterized in that, The rotary welding fixture includes four clamping seats spaced apart along the X direction, four pressure blocks spaced apart along the X direction, two rotary motors, and two clamping cylinders. One of the rotary motors simultaneously drives two adjacent clamping seats to rotate synchronously, and the other rotary motor simultaneously drives two other adjacent clamping seats to rotate synchronously. Each of the two clamping cylinders is connected to an adapter, and two pressure blocks are rotatably connected to one of the adapters. The two lasers are arranged at intervals along the X direction, and the four clamps are divided into two groups. Each group of clamps includes two adjacent clamps. The distance between the two clamps in the X direction is D, and the distance between the two lasers in the X direction is also D. The number of the airtightness testing fixtures is at least four, and the transfer mechanism is used to transfer four atomizing bombs to the four airtightness testing fixtures at one time.

5. The integrated machine for laser welding and airtightness testing of atomized projectiles as described in claim 4, characterized in that, There are two Y-axis modules, which are arranged at intervals along the X-direction. Each Y-axis module is connected to a set of rotary welding fixtures, which are used to clamp four atomizing bullets. Each Y-axis module has a set of airtightness testing fixtures on one side in the Y-direction. Each set of airtightness testing fixtures includes four airtightness testing fixtures arranged sequentially along the X-direction. The transfer mechanism is a transport robot located between the two sets of airtightness testing fixtures. The transport robot is used to transfer four atomizing bullets to one of the sets of airtightness testing fixtures at a time.

6. The integrated machine for laser welding and airtightness testing of atomized projectiles as described in claim 5, characterized in that, The drive mechanism includes an X-axis module and a Z-axis module connected together. The X-axis module is fixed on the frame and spans the two Y-axis modules in the X direction. Both lasers are connected to the Z-axis module.

7. The integrated machine for laser welding and airtightness testing of atomized projectiles as described in claim 5, characterized in that, The handling robot includes a base, a first swing arm, a second swing arm, a lead screw module, and four pneumatic grippers; The first swing arm rotates relative to the base about a vertical axis, and the second swing arm rotates relative to the first swing arm about a vertical axis. All four pneumatic grippers are connected to the lead screw module. The lead screw module is rotatably connected to the second swing arm and is used to drive the four pneumatic grippers to move up and down in the vertical direction. The four pneumatic grippers are arranged at intervals along the X direction and are all used to hold the atomizing bullet.

8. The integrated machine for laser welding and airtightness testing of atomized projectiles as described in claim 2, characterized in that, The rotary welding fixture also includes multiple sensors fixed on the mounting base. The sensors are used to sense whether an atomizing projectile is clamped on the mounting base, and the sensors are connected to the laser signal.

9. The integrated machine for laser welding and airtightness testing of atomized projectiles as described in claim 1, characterized in that, The airtightness testing fixture includes a support base, a sealing block, a drive cylinder, and an inflation head; The support base, the sealing block, and the driving cylinder are all fixed relative to the frame. The support base is provided with an upward-opening limiting groove for inserting the atomizing bullet from top to bottom. The sealing block and the inflation head are respectively located on opposite sides of the support base. The driving cylinder is connected to the inflation head and is used to drive the inflation head and the sealing block to clamp the atomizing bullet together. The sealing block is used to seal the opening at one end of the atomizing bullet, and the inflation head is used to seal the outer edge of the mist outlet at the other end of the atomizing bullet. The inflation head is provided with an inflation channel for inflating air from the mist outlet of the atomizing bullet into the atomizing bullet.

10. The integrated machine for laser welding and airtightness testing of atomized projectiles as described in claim 1, characterized in that, The integrated machine for laser welding and airtightness testing of the atomizing bomb also includes a defective product collection box and a conveying device; the conveying device and the defective product collection box are both arranged within the driving range of the transfer mechanism. The transfer mechanism is also used to transfer atomizing bombs that pass the airtightness test to the conveying device, and the transfer mechanism is used to transfer atomizing bombs that fail the airtightness test to the defective product collection box.

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