Mobile phone hinge laser welding machine

Abstract

The utility model discloses a kind of mobile phone hinge laser welding machines, it is related to mobile phone hinge production technical field, and the mobile phone hinge laser welding machine includes rack, light shield shell, material conveying carousel, driving assembly and welding head component;Light shield shell is located in rack;Material conveying carousel is rotatably arranged in rack, and part of structure of material conveying carousel is located in light shield shell;Driving assembly is arranged in rack, and located in light shield shell;Welding head component is arranged in the output end of driving assembly, and located above material conveying carousel;The technical scheme provided by the utility model improves the security of welding process.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone hinge manufacturing technology, and in particular to a mobile phone hinge laser welding machine. Background Technology

[0002] Laser welding, as a high-precision and high-efficiency modern welding technology, has been widely used in the production of mobile phone hinges due to its outstanding advantages such as small heat-affected zone, minimal welding deformation, and ease of automation. However, when high-energy-density lasers act on the workpiece, this technology inevitably produces intense scattered laser light and metal spatter, which pose direct safety hazards and risks of injury to the eyes and skin of on-site operators. Utility Model Content

[0003] The main purpose of this invention is to propose a laser welding machine for mobile phone hinges, which aims to improve the safety of the welding process.

[0004] To achieve the above objectives, the present invention proposes a mobile phone hinge laser welding machine, which includes a frame, a light-shielding shell, a material conveying turntable, a drive assembly, and a welding head assembly. The light-shielding shell is disposed on the frame; the material conveying turntable is rotatably disposed on the frame, and a portion of the structure of the material conveying turntable is located inside the light-shielding shell; the drive assembly is disposed on the frame and located inside the light-shielding shell; the welding head assembly is disposed at the output end of the drive assembly and located above the material conveying turntable.

[0005] In one embodiment, the welding head assembly includes a mounting base, a refractive housing, a vision module, a laser module, and a galvanometer module. The mounting base is located at the output end of the driving assembly, the refractive housing is located on the mounting base, the vision module and the laser module are located at the top of the refractive housing, and the galvanometer module is located at the output port of the refractive housing.

[0006] In one embodiment, the mobile phone hinge laser welding machine further includes an optical path converter, which is disposed within the frame and connected to the laser module via an optical fiber.

[0007] In one embodiment, the welding head assembly further includes a temperature measuring module disposed on the refractive housing.

[0008] In one embodiment, the mobile phone hinge laser welding machine further includes an air blowing protection assembly, which includes a mounting bracket and an air supply pipe. The mounting bracket is disposed on the welding head assembly, and the air supply pipe is disposed on the mounting bracket.

[0009] In one embodiment, the drive assembly includes a first drive module, a second drive module, and a third drive module. The first drive module is disposed on the frame. The first drive module drives the second drive module to move along a first direction. The second drive module drives the third drive module to move along a second direction. The third drive module drives the welding head assembly to move along a third direction. The first direction, the second direction, and the third direction are arranged perpendicularly to each other.

[0010] In one embodiment, the light-shielding shell has an opening communicating with the inner cavity and the outside, and the material conveying turntable passes through the opening; The mobile phone hinge laser welding machine also includes a flexible light-blocking curtain, which is disposed at the opening.

[0011] In one embodiment, the material conveying turntable has two processing stations, which are respectively located at both ends of the material conveying turntable.

[0012] In one embodiment, the light-shielding shell has maintenance windows on both opposite sides.

[0013] In one embodiment, a display screen is provided at one end of the light-shielding shell near the material conveyor turntable.

[0014] In the technical solution of this utility model, by setting a light-shielding shell, the welding process is confined inside the light-shielding shell, thereby improving the safety of the welding process. At the same time, the exposed design of the turntable ensures the convenience and smoothness of the loading and unloading process. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 A schematic diagram of a structure of an embodiment of the laser welding machine for mobile phone hinges provided by this utility model; Figure 2 A schematic diagram of a structure of an embodiment of the mobile phone hinge laser welding machine (hidden light-shielding shell) provided by this utility model; Figure 3 This is a structural schematic diagram of an embodiment of the welding head assembly provided by this utility model.

[0017] Explanation of icon numbers: 1000. Mobile Phone Hinge Laser Welding Machine; 1. Frame; 2. Light-shielding shell; 21. Inspection window; 22. Display screen; 3. Material conveyor turntable; 4. Drive assembly; 41. First drive module; 42. Second drive module; 43. Third drive module; 5. Welding head assembly; 51. Mounting base; 52. Refraction shell; 53. Vision module; 54. Laser module; 55. Galvanometer module; 6. Mounting bracket; 7. Gas supply pipe; 8. Flexible light-shielding curtain; 9. Air extraction pipe.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0020] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] This utility model proposes a laser welding machine 1000 for mobile phone hinges.

[0023] Please see Figure 1 and Figure 2In one embodiment of this utility model, the mobile phone hinge laser welding machine 1000 includes a frame 1, a light-shielding shell 2, a material conveying turntable 3, a drive assembly 4, and a welding head assembly 5; the light-shielding shell 2 is disposed on the frame 1; the material conveying turntable 3 is rotatably disposed on the frame 1, and a portion of the structure of the material conveying turntable 3 is located inside the light-shielding shell 2; the drive assembly 4 is disposed on the frame 1 and located inside the light-shielding shell 2; the welding head assembly 5 is disposed at the output end of the drive assembly 4 and located above the material conveying turntable 3.

[0024] The frame 1, as the basic support structure of the entire equipment, is usually welded or cast from high-rigidity metal materials.

[0025] The light-shielding shell 2 is fixedly installed on the frame 1 to form a protective space. The light-shielding shell 2 is usually made of opaque metal sheet or high-strength engineering plastic. The inner wall of the light-shielding shell 2 can be equipped with a light-absorbing coating.

[0026] The material conveying turntable 3 is rotatably mounted on the frame 1 via bearings and other rotating mechanisms. Part of the material conveying turntable 3 is located inside the protective space formed by the light-shielding shell 2, while the rest is located outside the light-shielding shell 2. This allows for loading and unloading operations to be performed in a safe area outside the light-shielding shell 2. When the material conveying turntable 3 rotates and the workpiece enters the light-shielding shell 2, welding can be performed in a protected environment.

[0027] The drive assembly 4 is located inside the light-shielding shell 2. The drive assembly 4 can drive the welding head assembly 5 to move above the workpiece to be welded and perform the welding operation.

[0028] In the technical solution of this utility model, by setting a light-shielding shell 2, the welding process is confined inside the light-shielding shell 2, thereby improving the safety of the welding process. At the same time, the exposed design of the turntable ensures the convenience and smoothness of the loading and unloading process.

[0029] Specifically, in one embodiment of this utility model, please refer to... Figure 3 The welding head assembly 5 includes a mounting base 51, a refractive housing 52, a vision module 53, a laser module 54, and a galvanometer module 55. The mounting base 51 is located at the output end of the drive assembly 4, the refractive housing 52 is located on the mounting base 51, the vision module 53 and the laser module 54 are located at the top of the refractive housing 52, and the galvanometer module 55 is located at the output port of the refractive housing 52. The mobile phone hinge laser welding machine 1000 also includes an optical path converter, which is located inside the frame 1 and is connected to the laser module 54 via an optical fiber.

[0030] Mounting base 51 is directly mounted on the output end of drive assembly 4, and is moved and positioned in three-dimensional space by drive assembly 4. Refraction housing 52 is mounted inside mounting base 51, and vision module 53 and laser module 54 are mounted side-by-side or in a compact configuration on top of refraction housing 52. Vision module 53 includes a CCD camera, a matching lens, and an illumination source; its optical axis passes through a specific channel inside the housing for observing the workpiece below. Laser module 54 is connected via fiber optic cable and optical path converter, while galvanometer module 55 is located at the output port of refraction housing 52. Optical path converter integrates a laser and a beam shaping system. The original laser beam, with a Gaussian energy distribution, is processed by the beam shaping system to convert it into a flat-top beam with uniform energy density within the beam spot. This shaped laser is then transmitted to laser module 54 via fiber optic cable, and then enters galvanometer module 55 through an optical path within refraction housing 52, ultimately performing a rapid scan on the workpiece surface to complete the welding. The inclusion of vision module 53 helps improve welding quality. By converting the laser beam using an optical path converter, a flat-top beam is obtained, which can reduce welding cracks and improve the welding quality and yield of products. It is especially suitable for precision workpieces with extremely high welding quality requirements.

[0031] Furthermore, in one embodiment of this utility model, the welding head assembly 5 also includes a temperature measuring module, which is disposed in the refractive housing 52. The temperature measuring module typically employs a non-contact infrared temperature sensor, capable of detecting and acquiring temperature data of the laser application point and its surrounding heat-affected zone in real time with extremely high response speed. By performing real-time, online temperature monitoring of the welding process through the temperature measuring module, the actual process status can be obtained instantly, enabling closed-loop feedback control of welding energy and improving the consistency and pass rate of the weld.

[0032] Furthermore, in one embodiment of this utility model, please refer to... Figure 3 The 1000 mobile phone hinge laser welding machine also includes a gas-blowing protection assembly, which comprises a mounting bracket 6 and a gas supply pipe 7. The mounting bracket 6 is located on the welding head assembly 5, and the gas supply pipe 7 is located on the mounting bracket 6. The mounting bracket 6 is situated to the side of the output port of the welding head assembly 5. The gas supply pipe 7 is a flexible metal hose or Teflon tube, with one end fixed by the mounting bracket 6 and the outlet precisely pointing towards the laser beam action area at the end of the welding head assembly 5; the other end is connected to an external protective gas source (such as an argon or nitrogen cylinder or a central gas supply system). During laser welding, the protective gas is continuously and stably blown through the gas supply pipe 7 onto the molten pool and its surrounding high-temperature area. This gas flow forms a local gas protective layer, isolating the molten metal from harmful gases such as oxygen and nitrogen in the air. By introducing an inert protective gas, a local oxygen-free environment can be created, ensuring that the weld metal cools and solidifies in a pure state, thereby obtaining a high-quality weld and significantly improving the product yield and performance.

[0033] Specifically, in one embodiment of this utility model, please refer to... Figure 2 The drive assembly 4 includes a first drive module 41, a second drive module 42, and a third drive module 43. The first drive module 41 is mounted on the frame 1. The first drive module 41 drives the second drive module 42 to move along a first direction, the second drive module 42 drives the third drive module 43 to move along a second direction, and the third drive module 43 drives the welding head assembly 5 to move along a third direction. The first, second, and third directions are perpendicular to each other. The first drive module 41 serves as the base of the entire system and is fixedly mounted on the frame 1. The second drive module 42 is directly driven by the first drive module 41, enabling it to move along the first direction (defined as the X-axis). The third drive module 43 is directly driven by the second drive module 42, enabling it to move along the first direction (defined as the Y-axis). The third drive module 43 is responsible for ultimately driving the welding head assembly 5 to move linearly along the third direction (defined as the Z-axis). The third direction is perpendicular to both the first two directions, forming a complete three-dimensional rectangular coordinate system. Through the coordinated movement of the three drive modules in the XYZ directions, the welding head assembly 5 can be quickly and accurately positioned at any position within the working space inside the light-shielding shell 2. This allows the equipment to flexibly adapt to workpieces of different sizes and heights and to complete complex three-dimensional trajectory welding, greatly expanding the equipment's processing capabilities and application range.

[0034] Furthermore, in one embodiment of this utility model, please refer to... Figure 1 The light-shielding shell 2 has an opening connecting the inner cavity to the outside, through which the material conveying turntable 3 passes. The mobile phone hinge laser welding machine 1000 also includes a flexible light-shielding curtain 8, which is located at the opening. By setting a specific opening on the light-shielding shell 2, a portion of the material conveying turntable 3 passes through this opening, allowing the turntable 3 to rotate freely. Simultaneously, the flexible light-shielding curtain 8 is placed at the opening. The flexible light-shielding curtain 8 is made of a soft, wear-resistant, and opaque material (such as black rubber, multi-layered special canvas, or composite polymer material). The flexible light-shielding curtain 8 fills the gap between the light-shielding shell 2 and the moving material conveying turntable 3. It can adaptively deform as the material conveying turntable 3 rotates, effectively sealing the opening gap at all times. This ensures that the scattered laser and metal spatter generated during the welding process are completely contained inside the light-shielding shell 2, achieving dynamic light shielding.

[0035] Specifically, in one embodiment of this utility model, the material conveying turntable 3 has two processing stations, which are respectively located at both ends of the turntable 3. Each station is equipped with a fixture or jig for positioning and holding the workpiece. Thus, when a workpiece is being welded at one station inside the light-shielding shell 2, loading and unloading operations can be performed simultaneously at the other station outside the light-shielding shell 2. After welding and loading / unloading are completed, the turntable rotates 180 degrees, the two stations exchange positions, and the cycle continues. This design allows the welding time and loading / unloading time to completely overlap, eliminating waiting time and improving the production efficiency of the equipment.

[0036] Furthermore, in one embodiment of this utility model, please refer to... Figure 1 The light-shielding shell 2 has maintenance windows 21 on both opposite sides. The maintenance windows 21 are openable and closable structures, such as hinged sealed doors or sliding covers, providing excellent light-shielding and sealing properties. The maintenance windows 21 provide operators with direct access to the equipment's interior, making daily inspections, cleaning, lens replacement, adjustments, and troubleshooting of the drive assembly 4 and welding head assembly 5 more convenient, significantly shortening maintenance time and improving equipment efficiency.

[0037] Furthermore, in one embodiment of this utility model, please refer to... Figure 1 A display screen 22 is provided at one end of the light-shielding shell 2 near the material conveying turntable 3. That is, a display screen 22 is fixedly installed on the outside of the light-shielding shell 2, near the loading and unloading operation area of ​​the material conveying turntable 3. This display screen 22 is usually a human-machine interface, which can be a touch screen, used to display equipment status, welding parameters, alarm information, production count, etc., and to receive instructions from the operator.

[0038] For ease of air purification, please refer to one embodiment of this utility model. Figure 2 The system also includes a fume purifier, which can be a standalone cabinet unit or integrated into the rack 1. The fume purifier typically includes a fan, a multi-stage filtration system, a dust collection device, and an extraction pipe 9. The intake of the extraction pipe 9 is located inside the light-shielding shell 2 and is positioned corresponding to the welding location. Laser welding of metal materials generates a large amount of harmful fumes containing tiny metal oxide particles. By placing the extraction pipe 9 near the welding location, the fumes can be forcefully extracted the instant they are generated and diffused. This achieves source capture, effectively preventing the accumulation of harmful fumes inside the light-shielding shell 2 and potential leakage into the external workshop environment, providing operators with a healthier and safer working environment.

[0039] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A laser welding machine for mobile phone hinges, characterized in that, Includes frame, light shield, material conveyor, drive assembly, and welding head assembly; The light-shielding shell is disposed on the frame; the material conveying turntable is rotatably disposed on the frame, and a portion of the structure of the material conveying turntable is located inside the light-shielding shell; the drive assembly is disposed on the frame and located inside the light-shielding shell; the welding head assembly is disposed at the output end of the drive assembly and located above the material conveying turntable.

2. The mobile phone hinge laser welding machine as described in claim 1, characterized in that, The welding head assembly includes a mounting base, a refractive housing, a vision module, a laser module, and a galvanometer module. The mounting base is located at the output end of the driving assembly, the refractive housing is located on the mounting base, the vision module and the laser module are located at the top of the refractive housing, and the galvanometer module is located at the output port of the refractive housing.

3. The mobile phone hinge laser welding machine as described in claim 2, characterized in that, The mobile phone hinge laser welding machine also includes an optical path converter, which is located inside the frame and is connected to the laser module via an optical fiber.

4. The mobile phone hinge laser welding machine as described in claim 2, characterized in that, The welding head assembly also includes a temperature measuring module, which is disposed in the refractive housing.

5. The mobile phone hinge laser welding machine as described in claim 1, characterized in that, The mobile phone hinge laser welding machine also includes an air blowing protection component, which includes a mounting bracket and an air supply pipe. The mounting bracket is located on the welding head assembly, and the air supply pipe is located on the mounting bracket.

6. The mobile phone hinge laser welding machine as described in claim 1, characterized in that, The drive assembly includes a first drive module, a second drive module, and a third drive module. The first drive module is disposed on the frame. The first drive module drives the second drive module to move along a first direction. The second drive module drives the third drive module to move along a second direction. The third drive module drives the welding head assembly to move along a third direction. The first direction, the second direction, and the third direction are arranged perpendicularly to each other.

7. The mobile phone hinge laser welding machine as described in claim 1, characterized in that, The light-shielding shell has an opening that connects the inner cavity to the outside, and the material conveying turntable passes through the opening; The mobile phone hinge laser welding machine also includes a flexible light-blocking curtain, which is disposed at the opening.

8. The mobile phone hinge laser welding machine as described in claim 1, characterized in that, The material conveying turntable has two processing stations, which are respectively located at both ends of the material conveying turntable.

9. The mobile phone hinge laser welding machine as described in claim 1, characterized in that, The light-shielding shell has maintenance windows on both opposite sides.

10. The mobile phone hinge laser welding machine as described in claim 1, characterized in that, The light-shielding shell has a display screen at one end near the material conveying turntable.

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