Laser welding equipment for all-aluminum lipstick shell machining

By introducing an automatic heat dissipation positioning, grinding, correction and positioning mechanism into the processing of all-aluminum lipstick shells, and integrating a nitrogen nozzle and welding head, the problems of thermal deformation, oxide layer influence and low positioning efficiency in the processing of all-aluminum lipstick shells have been solved, realizing an efficient and automated welding process and improving welding quality and precision.

CN121649558AInactive Publication Date: 2026-03-13JIANGSU JIAYING HARDWARE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-14
Publication Date
2026-03-13
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing laser welding equipment suffers from problems such as thermal deformation, oxide layer affecting welding quality, and low positioning efficiency in the processing of all-aluminum lipstick shells, and cannot meet the needs of automated production.

Method used

The laser welding equipment with an automatic heat dissipation and positioning mechanism is used, combined with grinding, correction and positioning mechanisms, to achieve internal and external support, automatic correction and multi-process integration. Nitrogen nozzles are used to remove the oxide layer and blow away debris, and industrial cameras are used for precise positioning and automatic welding of the welding head.

Benefits of technology

It significantly reduces the risk of welding thermal deformation, improves welding precision and efficiency, ensures welding quality and product consistency, and enables automated production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses laser welding equipment for all-aluminum lipstick shell machining, and relates to the technical field of laser welding equipment, and the laser welding equipment comprises a workbench and a lipstick shell body. According to the laser welding equipment for machining the all-aluminum lipstick shell, through the positioning machine with an automatic heat dissipation function, inner and outer double limiting supporting of the thin-wall lipstick shell body can be achieved through the inner supporting piece and the outer positioning piece, welding collapse and deformation are effectively prevented, and through the follow-up design of the inner supporting piece and the welding head, the welding quality is improved. According to the lipstick shell, automatic avoiding of the welding position can be achieved, normal welding can be guaranteed, stable supporting of the lipstick shell body can be guaranteed, downward movement of a welding head is converted into power for driving an elastic air bag, and therefore air flow is automatically conveyed into the lipstick shell body, air flow is accelerated, and automatic air cooling heat dissipation is achieved; and the welding thermal deformation risk is remarkably reduced from the source, and the welding precision and the consistency of finished products are improved.
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Description

Technical Field

[0001] This invention relates to the field of laser welding equipment technology, specifically to a laser welding device for processing all-aluminum lipstick casings. Background Technology

[0002] In the high-end cosmetic packaging manufacturing industry, all-aluminum lipstick cases are increasingly widely used due to their superior texture, lightweight, and environmentally friendly recyclable properties. The manufacturing process often requires rolling pre-bent aluminum sheets into a circle and then laser welding their longitudinal seams. This process faces several challenges: First, aluminum is soft and conducts heat quickly, making the thin-walled shell prone to thermal deformation under the high heat input of welding, affecting the roundness and aesthetics of the finished product. Second, a high-melting-point aluminum oxide layer easily forms on the aluminum surface under high heat; if not treated, this directly hinders the formation of the weld pool, resulting in a weak weld. Existing laser welding equipment for such workpieces still has the following shortcomings: Conventional fixtures only achieve mechanical clamping and lack effective active heat dissipation design, which cannot suppress workpiece deformation caused by welding heat accumulation, affecting welding accuracy and shell shape retention; Existing equipment cannot effectively remove the oxide layer on the surface of the workpiece, thus affecting the welding quality of the workpiece; Since the weld seam is a straight line, it currently relies mainly on manual positioning, which is inefficient and cannot meet the needs of automated production. Summary of the Invention

[0003] The purpose of this invention is to provide a laser welding device for processing all-aluminum lipstick casings, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a laser welding device for processing all-aluminum lipstick casings, comprising a worktable and a lipstick casing body, a fixed frame fixed on the upper surface of the worktable, a first motor fixed on the fixed frame, the output end of the first motor being fixed to a lead screw, the lead screw bearing being connected between the worktable and the fixed frame, the lead screw being threadedly connected to a movable frame, and the movable frame being slidably connected to the fixed frame; A polishing mechanism is used to polish the welded seams of the lipstick casing. The polishing mechanism is mounted on a movable frame. A correction mechanism is used to automatically correct the welding seam of the lipstick outer shell. The correction mechanism is installed on the workbench. The positioning mechanism is used to provide internal and external support and fixation for the lipstick casing and to assist in heat dissipation. The positioning mechanism is connected to the correction mechanism.

[0005] Preferably, an industrial camera is mounted on the movable frame, and a welding head is also fixed on the movable frame. A nitrogen nozzle is fixed on the welding head. The industrial camera can locate the welding seam of the lipstick shell body, the welding head can realize the welding of the lipstick shell body, and the nitrogen nozzle can spray nitrogen gas to blow away residual impurities from grinding and ensure the quality of the weld.

[0006] Preferably, the polishing mechanism includes a support plate fixed to the movable frame, a second motor fixed on the support plate, and an installation sleeve fixed to the output end of the second motor. A sliding rod is slidably connected to the installation sleeve at equal angles. The sliding rod is fixed to the connector, and springs are fixed to the connectors at equal angles. Through the sliding action between the sliding rod and the installation sleeve and the elastic action of the springs, the polishing roller can float within a certain range, thereby better meeting the polishing requirements of the lipstick case body.

[0007] Preferably, the connector is symmetrically fixed on the polishing roller, and the polishing roller, welding head and nitrogen nozzle are distributed from bottom to top. The polishing roller can polish the oxide layer on the surface of the lipstick shell, thereby ensuring the normal progress of welding.

[0008] Preferably, the correction mechanism includes a third motor fixed to the lower end face of the workbench, with the output end of the third motor fixed to the cylinder. The cylinder is positioned above the workbench and is fixed to one end of an elastic airbag. The elastic airbag is connected to one end of an air guide tube, and the other end of the elastic airbag is fixed to a circular plate. The circular plate, cylinder, and air guide tube are slidably connected. By rotating the cylinder driven by the third motor, the welding seam position of the lipstick shell body can be automatically corrected, thereby ensuring the normal progress of welding. Furthermore, the elastic airbag provides a basic guarantee for heat dissipation during the welding process of the lipstick shell body, further ensuring the welding quality of the lipstick shell body.

[0009] Preferably, a support rod is fixed at an equal angle on the outer side of the circular plate, and the support rod is slidably connected to the cylinder. The support rod is also fixed to the ring, and the ring is located on the outer side of the cylinder. When the circular plate moves under force, the sliding guidance between the support rod and the cylinder can ensure the stability of the circular plate's movement.

[0010] Preferably, the ring has a groove, and a ball rod is slidably connected in the groove. The ball rod is fixedly connected to the movable frame. The movable frame drives the ball rod to move downward, which can provide a basic force for the movement of the circular plate, thereby ensuring the normal operation of the device. The sliding action between the ball rod and the groove can also ensure the normal operation of the device.

[0011] Preferably, the positioning mechanism includes a support rod with a hollow structure fixed to the cylinder, and the other end of the support rod is connected to the air duct. A support platform is fixed on the support rod, and the support platform contacts the lipstick shell body to provide support. Through the above structure, the lipstick shell body can be supported.

[0012] Preferably, an air guide rod is fixed on the support platform, and the air guide rod, support platform, and support rod are interconnected. Air holes are evenly spaced on the air guide rod, and inner support members are also evenly spaced on the air guide rod. The inner support members contact the inner wall of the lipstick shell to provide support, and through holes are evenly spaced on the inner support members. The inner support members can provide a basic guarantee for supporting the inner wall of the lipstick shell, and the air holes and through holes can facilitate airflow, thereby providing a basic guarantee for heat dissipation of the lipstick shell.

[0013] Preferably, an outer positioning member is provided on the outer side of the inner support member, and the outer positioning member slides in contact with the outer wall of the lipstick shell body. The outer positioning member is fixed to one end of the vertical rod, while the other end of the vertical rod is fixed to the circular plate. The vertical rod and the cylinder are slidably connected. Through the cooperation of the outer positioning member and the inner support member, the inner and outer supports of the lipstick shell body can be realized simultaneously, thereby ensuring the production quality of the lipstick shell body.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This laser welding equipment for processing all-aluminum lipstick shells, through a positioning machine with automatic heat dissipation, can not only achieve double internal and external limiting support for the thin-walled lipstick shell body through the inner support and outer positioning components, effectively preventing welding collapse and deformation, but also converts the downward movement of the welding head into the power to drive the elastic airbag, thereby automatically delivering airflow into the lipstick shell body, accelerating airflow to achieve automatic air cooling, significantly reducing the risk of welding thermal deformation from the root, and improving welding accuracy and product consistency; 2. This laser welding equipment for processing all-aluminum lipstick casings integrates the grinding mechanism, nitrogen nozzle, and welding head onto the same movable frame, and limits the position of the grinding roller. This enables automated multi-process assembly line operation under single-axial feed. After the lipstick casing is clamped, it can automatically complete the grinding of the oxide layer in the weld area, nitrogen blowing away of grinding debris, immediate nitrogen protection of the newly formed metal surface, and final welding. This optimizes the welding process, eliminates workpiece transfer and repetitive positioning between processes, saves time, and fundamentally ensures the weld alignment accuracy and weld surface cleanliness, thereby improving welding quality and efficiency. 3. This laser welding equipment for processing all-aluminum lipstick casings features a direct linkage between the correction mechanism and the positioning mechanism. After the seam position is identified by an industrial camera, a third motor drives the workpiece to rotate, achieving automatic circumferential correction of the seam. The outer positioning component is connected to a vertically sliding circular plate via a vertical rod. When the welding head moves down to weld, it automatically descends to avoid the welding area, while maintaining support below the welding start position. This ensures both the normal progress of welding and the stable support of the lipstick casing, further improving the welding quality of the lipstick casing. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional structural diagram of the overall composition of the device of the present invention; Figure 2 This is a bottom-view three-dimensional structural diagram of the overall composition of the device of the present invention; Figure 3 This is a cross-sectional three-dimensional structural diagram of the grinding mechanism of the present invention; Figure 4 This is a frontal cross-sectional three-dimensional structural diagram of the correction mechanism and positioning mechanism of the present invention; Figure 5 This is a bottom-view cross-sectional three-dimensional structural diagram of the correction mechanism and positioning mechanism of the present invention; Figure 6 This is a frontal cross-sectional three-dimensional structural diagram of the positioning mechanism of the present invention.

[0016] In the diagram: 1. Workbench; 2. Fixed frame; 3. First motor; 4. Lead screw; 5. Movable frame; 501. Industrial camera; 502. Welding head; 503. Nitrogen nozzle; 6. Grinding mechanism; 601. Support plate; 602. Second motor; 603. Mounting sleeve; 604. Slide rod; 605. Connector; 606. Spring; 607. Grinding roller; 7. Correction mechanism; 701. Third motor; 7 02. Cylinder; 703. Elastic airbag; 704. Air guide tube; 705. Circular plate; 706. Support rod; 707. Ring; 708. Slide groove; 709. Cue stick; 8. Positioning mechanism; 801. Support rod; 802. Support platform; 803. Air guide rod; 804. Air hole; 805. Inner support component; 806. Through hole; 807. Outer positioning component; 808. Vertical rod; 9. Lipstick outer shell body. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-6 The present invention provides a technical solution: a laser welding device for processing all-aluminum lipstick shells, including a worktable 1 and a lipstick shell body 9. A fixed frame 2 is fixed on the upper surface of the worktable 1, and a first motor 3 is fixed on the fixed frame 2. The output end of the first motor 3 is fixed to a lead screw 4. The lead screw 4 is connected between the worktable 1 and the fixed frame 2 by a bearing. The lead screw 4 is threadedly connected to a movable frame 5, and the movable frame 5 is slidably connected to the fixed frame 2. Polishing mechanism 6 is used to polish the weld seam of the lipstick outer shell 9. Polishing mechanism 6 is installed on the movable frame 5. The correction mechanism 7 is used to automatically correct the welding seam of the lipstick outer shell 9. The correction mechanism 7 is installed on the workbench 1. The positioning mechanism 8 is used to provide internal and external support and fixation for the lipstick outer shell 9 and to assist in heat dissipation. The positioning mechanism 8 is connected to the correction mechanism 7.

[0019] The positioning mechanism 8 includes a hollow support rod 801 fixed to the cylinder 702, and the other end of the support rod 801 is connected to the air guide pipe 704. A support platform 802 is fixed on the support rod 801, and the support platform 802 contacts the lipstick shell body 9 for support. An air guide rod 803 is fixed on the support platform 802, and the air guide rod 803, the support platform 802, and the support rod 801 are interconnected. Air holes 804 are evenly spaced on the air guide rod 803. An inner support member 805 is fixed at equal intervals on the upper part. The inner support member 805 contacts the inner wall of the lipstick shell body 9 to provide support. The inner support member 805 is provided with through holes 806 evenly. An outer positioning member 807 is provided on the outer side of the inner support member 805. The outer positioning member 807 contacts and slides with the outer wall of the lipstick shell body 9. The outer positioning member 807 is fixed to one end of the vertical rod 808. At the same time, the other end of the vertical rod 808 is fixed to the circular plate 705. The vertical rod 808 and the cylinder 702 are slidably connected. When using laser welding equipment for processing all-aluminum lipstick cases, such as Figures 1-6 As shown, firstly, the inner wall of the lipstick shell body 9, which is bent into a cylindrical shape, is nested with the inner support 805. At this time, the outer wall of the lipstick shell body 9 is in contact with and slides against the outer positioning member 807. By pressing the lipstick shell body 9, the lipstick shell body 9 moves downward relative to the outer positioning member 807 until the lower end face of the lipstick shell body 9 contacts the support platform 802. This completes the installation of the lipstick shell body 9, and ensures that the gaps that need to be welded on the lipstick shell body 9 are located on the side of the movable frame 5. An industrial camera 501 is mounted on the movable frame 5, and a welding head 502 is also fixed on the movable frame 5, with a nitrogen nozzle 503 fixed on the welding head 502; the correction mechanism 7 includes a third motor 701 fixed to the lower end face of the worktable 1, and the output end of the third motor 701 is fixed to the cylinder 702, which is positioned above the worktable 1. The cylinder 702 is also fixed to one end of an elastic airbag 703, and the elastic airbag 703 is connected to one end of an air guide pipe 704. The other end is fixed to the circular plate 705, and the circular plate 705, the cylinder 702 and the air guide pipe 704 are slidably connected; a support rod 706 is fixed at equal angles on the outer side of the circular plate 705, and the support rod 706 is slidably connected to the cylinder 702, and the support rod 706 is fixed to the ring 707, while the ring 707 is located on the outer side of the cylinder 702; a sliding groove 708 is opened on the ring 707, and a ball rod 709 is slidably connected in the sliding groove 708, and the ball rod 709 is fixedly connected to the movable frame 5; After the lipstick case body 9 is installed, as follows Figures 1-6 As shown, during welding, the industrial camera 501 can detect whether the weld seam position of the lipstick shell body 9 is accurate. If the weld seam position of the lipstick shell body 9 is not accurate, the third motor 701 can be started to drive the cylinder 702, the circular plate 705, the support rod 706, the ring 707, the support rod 801, the support platform 802 and the lipstick shell body 9 to rotate. With the sliding action between the slide groove 708 and the ball rod 709, the rotation can be guaranteed to proceed normally, thereby automatically correcting the weld seam position of the lipstick shell body 9 and ensuring the accuracy of the weld seam position of the lipstick shell body 9. The grinding mechanism 6 includes a support plate 601 fixed to the movable frame 5, and a second motor 602 is fixed on the support plate 601. The output end of the second motor 602 is fixed with a mounting sleeve 603. Meanwhile, a sliding rod 604 is slidably connected to the mounting sleeve 603 at equal angles. The sliding rod 604 is fixed to the connector 605, and springs 606 are fixed to the connectors 605 at equal angles. The connectors 605 are symmetrically fixed on the grinding roller 607, and the grinding roller 607, welding head 502 and nitrogen nozzle 503 are distributed from bottom to top. After the welding seam of the lipstick casing 9 is corrected, the first motor 3 starts and drives the lead screw 4 to rotate. The threaded connection between the lead screw 4 and the movable frame 5 allows the movable frame 5 to move downwards under force. The sliding action between the movable frame 5 and the fixed frame 2 ensures the stability of the movable frame 5's movement. As the movable frame 5 moves downwards, the welding head 502, nitrogen nozzle 503, grinding roller 607, and ball rod 709 move downwards simultaneously. The downward movement of the ball rod 709 causes the ring 707, support rod 706, and circular plate 705 to move downwards synchronously. The sliding guide action between the support rod 706 and the cylinder 702 ensures the stability of the circular plate 705. The downward movement ensures stability, and when the circular plate 705 moves downward, it simultaneously drives the vertical rod 808 and the outer positioning component 807 to move downward. Through the downward movement of the outer positioning component 807, an automatic avoidance function can be achieved, ensuring that the welding head 502 can properly weld the gap on the lipstick shell body 9 until the outer positioning component 807 moves below the support platform 802 to complete the welding function. During the welding process, since the outer positioning component 807 is always located below the welding position for external support, in conjunction with the internal support function of the inner support component 805, the shape of the lipstick shell body 9 can be effectively guaranteed, avoiding deformation of the shape of the lipstick shell body 9, thereby ensuring the production quality of the lipstick shell body 9. Furthermore, as the movable frame 5 moves downward, the second motor 602 is simultaneously activated. The second motor 602 drives the mounting sleeve 603, connector 605, and polishing roller 607 to rotate. Since the polishing roller 607 is located below the welding head 502 and nitrogen nozzle 503, it first contacts the seams on the lipstick casing 9. Through the rotation of the polishing roller 607, the seams on the lipstick casing 9 are polished, effectively removing the oxide layer from the surface of the seams, thus ensuring the subsequent welding quality of the lipstick casing 9. During the polishing process, the sliding rod 604 connects with the mounting sleeve 603... The sliding action between 3 and the elastic action of spring 606 allow the polishing roller 607 to float relative to the lipstick shell body 9 within a certain distance, thereby effectively ensuring the polishing quality. When the polishing roller 607 polishes the oxide layer on the surface of the gaps on the lipstick shell body 9, nitrogen is supplied to the nitrogen nozzle 503 through the nitrogen delivery mechanism. The nitrogen continuously sprayed by the nitrogen nozzle 503 can not only blow away the debris remaining during the polishing process, but also protect the gaps on the lipstick shell body 9 after polishing with nitrogen to prevent re-oxidation. The gaps after polishing can be welded through the welding head 502. During the welding process on the seam of the lipstick shell body 9, the circular plate 705 moves downward along with the welding head 502. The downward movement of the circular plate 705 can compress the elastic airbag 703, so that the air inside the elastic airbag 703 enters the air guide rod 803 through the air guide pipe 704, the support rod 801 and the support platform 802, and is ejected outward through the air hole 804. With the help of the through hole 806, the air between the inner support members 805 can be facilitated, thereby effectively accelerating the air flow inside the lipstick shell body 9, and thus achieving the auxiliary heat dissipation function of the lipstick shell body 9. This effectively prevents the lipstick shell body 9 from deforming due to excessive welding temperature, and further ensures the welding quality of the lipstick shell body 9. In summary, during the welding of the lipstick casing 9, the lipstick casing 9 is installed by nesting it with the inner support 805. The inner support 805, in conjunction with the outer positioning component 807, provides synchronous internal and external support for the lipstick casing 9, ensuring its stability. After fixing, the welding position of the lipstick casing 9 can be adjusted using the third motor 701. Combined with the detection function of the industrial camera 501, this ensures that the welding position of the lipstick casing 9 corresponds to the position of the welding head 502. During welding, the first motor 3 drives the movable frame 5, the welding head 502, and the grinding roller 607 to move downwards, while the second motor 602 drives the grinding roller 607 to rotate, thus allowing for the adjustment of the welding position of the lipstick casing 9. The oxide layer is polished, and with the nitrogen purging action of the nitrogen nozzle 503, polishing debris is removed, and nitrogen protection is provided to the polished area to prevent re-oxidation. Finally, welding is performed through the welding head 502. During the welding process, the welding head 502 is moved downward synchronously by the outer positioning component 807, which can actively avoid the welding position and ensure the fixed limit of the lipstick shell body 9, thereby ensuring the welding quality of the lipstick shell body 9. In addition, the compression and exhaust action of the elastic airbag 703 can accelerate the air flow inside the lipstick shell body 9, realize the air cooling function of the lipstick shell body 9, and prevent the lipstick shell body 9 from deforming due to the high temperature of welding, further ensuring the production quality of the lipstick shell body 9.

[0020] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A laser welding device for processing all-aluminum lipstick casings, comprising a worktable (1) and a lipstick casing body (9), characterized in that: The upper surface of the workbench (1) is fixed with a fixed frame (2), and a first motor (3) is fixed on the fixed frame (2). The output end of the first motor (3) is fixed to the lead screw (4). The lead screw (4) is connected between the workbench (1) and the fixed frame (2) by a bearing. The lead screw (4) is threadedly connected to the movable frame (5), and the movable frame (5) is slidably connected to the fixed frame (2). A polishing mechanism (6) is used to polish the weld seam of the lipstick outer shell body (9). The polishing mechanism (6) is mounted on the movable frame (5). The correction mechanism (7) is used to automatically correct the welding seam of the lipstick shell body (9). The correction mechanism (7) is installed on the workbench (1). The positioning mechanism (8) is used to provide internal and external support and fixation for the lipstick shell body (9) and to assist in heat dissipation. The positioning mechanism (8) is connected to the correction mechanism (7).

2. The laser welding equipment for processing all-aluminum lipstick casings according to claim 1, characterized in that: An industrial camera (501) is mounted on the movable frame (5), and a welding head (502) is also fixed on the movable frame (5), and a nitrogen nozzle (503) is fixed on the welding head (502).

3. The laser welding equipment for processing all-aluminum lipstick casings according to claim 2, characterized in that: The grinding mechanism (6) includes a support plate (601) fixed to the movable frame (5), and a second motor (602) is fixed on the support plate (601). The output end of the second motor (602) is fixed with an installation sleeve (603). Meanwhile, a slide rod (604) is slidably connected to the installation sleeve (603) at equal angles. The slide rod (604) is fixed to the connector (605), and a spring (606) is fixed to the connector (605) at equal angles.

4. The laser welding equipment for processing all-aluminum lipstick casings according to claim 3, characterized in that: The connector (605) is symmetrically fixed on the grinding roller (607), and the grinding roller (607), welding head (502) and nitrogen nozzle (503) are distributed from bottom to top.

5. The laser welding equipment for processing all-aluminum lipstick casings according to claim 1, characterized in that: The correction mechanism (7) includes a third motor (701) fixed on the lower end face of the workbench (1), and the output end of the third motor (701) is fixed to the cylinder (702). The cylinder (702) is set above the workbench (1). At the same time, the cylinder (702) is fixed to one end of the elastic airbag (703). The elastic airbag (703) is connected to one end of the air guide tube (704), and the other end of the elastic airbag (703) is fixed to the circular plate (705). The circular plate (705), the cylinder (702) and the air guide tube (704) are slidably connected.

6. A laser welding device for processing all-aluminum lipstick casings according to claim 5, characterized in that: The outer side of the circular plate (705) is fixed with a support rod (706) at equal angles, and the support rod (706) is slidably connected to the cylinder (702). The support rod (706) is fixed to the ring (707), and the ring (707) is located on the outer side of the cylinder (702).

7. A laser welding device for processing all-aluminum lipstick casings according to claim 6, characterized in that: The ring (707) has a groove (708) and a ball rod (709) is slidably connected in the groove (708), and the ball rod (709) is fixedly connected to the movable frame (5).

8. The laser welding equipment for processing all-aluminum lipstick casings according to claim 1, characterized in that: The positioning mechanism (8) includes a support rod (801) with a hollow structure fixed to the cylinder (702), and the other end of the support rod (801) is connected to the air duct (704). A support platform (802) is fixed on the support rod (801), and the support platform (802) contacts the lipstick shell body (9) to achieve support.

9. A laser welding device for processing all-aluminum lipstick casings according to claim 8, characterized in that: An air guide rod (803) is fixed on the support platform (802), and the air guide rod (803), the support platform (802) and the support rod (801) are interconnected. Air holes (804) are opened at equal intervals on the air guide rod (803). At the same time, an inner support member (805) is fixed at equal intervals on the air guide rod (803). The inner support member (805) contacts the inner wall of the lipstick shell body (9) to achieve a supporting function, and through holes (806) are evenly opened on the inner support member (805).

10. A laser welding device for processing all-aluminum lipstick casings according to claim 9, characterized in that: An outer positioning component (807) is provided on the outside of the inner support component (805), and the outer positioning component (807) slides in contact with the outer wall of the lipstick shell body (9). The outer positioning component (807) is fixed to one end of the vertical rod (808), while the other end of the vertical rod (808) is fixed on the circular plate (705). The vertical rod (808) and the cylinder (702) are slidably connected.