A watchband laser welding apparatus
By adopting a dual-station, split-type independent welding structure and modular components in the watch strap laser welding equipment, the problem of poor process adaptability of existing equipment has been solved, enabling efficient welding of watch straps of different materials, reducing maintenance costs and downtime, and improving yield and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QICHANGYUAN TECHNOLOGY DEVELOPMENT (HUIZHOU) CO LTD
- Filing Date
- 2026-06-02
- Publication Date
- 2026-07-21
AI Technical Summary
Existing watch strap laser welding equipment uses a single welding head integrated fixed structure, which cannot flexibly switch welding operation modes, resulting in poor process adaptability. It cannot match different process parameters for watch straps of different materials, and is prone to defects such as incomplete welding, desoldering, and burn-through. In addition, when changing different styles of watch straps, the whole machine needs to be adjusted, which is costly and results in a lot of downtime losses.
It adopts a dual-station, split, independent welding structure, equipped with separate laser welding bodies for running welding and spot welding, and features detachable modular components, including running welding and spot welding components, to achieve independent control and parameter adjustment, adapting to the processing needs of watch straps made of different materials.
It improves the adaptability and versatility of equipment processes, ensures stable welding accuracy, reduces operation and maintenance costs and downtime, adapts to diverse watch strap processing needs, and improves finished product yield and production efficiency.
Smart Images
Figure CN122425340A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of watch strap processing and welding, and in particular to a watch strap laser welding device. Background Technology
[0002] Currently, in the forming and assembly process of metal watch straps, many key steps rely heavily on welding technology to achieve precise and reliable connections. Specifically, the splicing and combination between links, the sealing and connection of the ends of the watch strap, and the final fixing and locking of various connectors all require precise and efficient welding technology. Welding technology not only ensures a firm connection and tight fit between various components, but also provides crucial technical support for the overall structural stability, long-term durability, and appearance integrity of the watch strap. Therefore, a laser welding device for watch straps is particularly needed.
[0003] However, existing watch strap laser welding equipment mostly adopts a single welding head integrated fixed welding structure during use, and is only equipped with a single welding operation module. It can only match fixed welding processes and cannot flexibly switch welding operation modes according to the actual production material and structural pattern of the watch strap. The process adaptability is poor. When dealing with different materials such as stainless steel, high-hardness alloys, and lightweight composite alloys, it is not possible to match the differentiated process parameters for spot welding and continuous running welding. Defects such as incomplete welding, desoldering, and weld penetration are very likely to occur, resulting in a low yield rate of finished products. At the same time, the traditional integrated welding head has weak controllability of concentrated heat source. When changing to produce different styles and specifications of watch straps, the whole machine needs to be debugged and modified, resulting in high technical modification costs, large downtime losses, and high time losses in subsequent shaping and grinding processes. Summary of the Invention
[0004] The purpose of this invention is to provide a watch strap laser welding equipment to solve the problems mentioned in the background art. Existing watch strap laser welding equipment often uses a single welding head integrated fixed welding structure, equipped with only a single welding operation module. It can only match fixed welding processes and cannot flexibly switch welding operation modes according to the actual production material and structural pattern of the watch strap. This results in poor process adaptability. When dealing with watch straps made of different materials such as stainless steel, high-hardness alloys, and lightweight composite alloys, it cannot specifically match the differentiated process parameters for spot welding and continuous welding, easily leading to defects such as incomplete welding, weld failure, and burn-through. The finished product yield is low. Furthermore, the traditional integrated welding head has weak controllability of the concentrated heat source. When changing to produce different styles and specifications of watch straps, the entire machine needs to be debugged and modified, resulting in high technical modification costs, significant downtime losses, and high time losses in subsequent shaping and grinding processes.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a watch strap laser welding device, comprising a mounting base and a worktable, wherein a running laser welding machine body is fixedly mounted on the top of the mounting base, a control box is fixedly mounted on the top of the running laser welding machine body, casters are provided at the bottom of the mounting base, a mounting seat is fixedly mounted on the top of the running laser welding machine body, a running welding machine is fixedly mounted on the top of the mounting seat, a running welding assembly is provided on the outer side of the running welding machine, an extension plate is fixedly mounted on the outer side of the mounting base, a mounting box is fixedly mounted on the top of the extension plate, a moving assembly is provided on the top of the mounting box, a watch strap body is provided on the top of the moving assembly, and a placement frame is provided on the top of the worktable. A spot welding laser welding machine body is installed on the outer side of the platform. A drive unit is fixedly installed on the top of the spot welding laser welding machine body. An operation panel is fixedly installed on the top of the drive unit. A support plate is fixedly installed on the outer side of the drive unit. A spot welding machine is fixedly installed on the top of the support plate. A spot welding assembly is installed on the outer side of the spot welding machine. The moving assembly includes a mounting base plate. A drive housing is fixedly installed on the top of the mounting base plate. A motor is fixedly installed on the outer side of the drive housing. A transmission screw is fixedly installed on the output end of the motor. A slide rail is fixedly installed at the bottom inside the drive housing. A moving seat is threaded to the outer side of the transmission screw. A moving hole is opened on the outer side of the moving seat. A placement plate is fixedly installed on the top of the moving seat.
[0006] Preferably, the running welding assembly includes a connecting plate, which is installed on the outside of the running welding machine. A connecting column is fixedly installed on the outside of the connecting plate, and a running welding box is fixedly installed on the outside of the connecting column. A flexible telescopic tube is fixedly installed on the outside of the connecting plate, and an air nozzle is fixedly installed at the end of the flexible telescopic tube. A connecting seat is fixedly installed at the bottom of the running welding box. The bottom of the connecting seat has a tenon groove, and the outside of the connecting seat has a connecting hole. A welding head is provided at the bottom of the connecting seat, and a through hole is provided on the outside of the welding head. An insertion rod is provided on the outside of the connecting seat, and a fixing block is provided on the outside of the insertion rod. A connecting pipe is fixedly installed on the outside of the running welding box, and a lighting lamp is fixedly installed on the outside of the connecting pipe.
[0007] Preferably, the spot welding assembly includes a second connecting plate, which is installed on the outside of the spot welding machine. A second connecting column is fixedly installed on the outside of the second connecting plate. A spot welding box is fixedly installed on the outside of the second connecting column. A second connecting seat is fixedly installed at the bottom of the spot welding box. A threaded hole is opened at the bottom of the second connecting seat. A second connecting pipe is fixedly installed on the outside of the spot welding box. A second lighting lamp is fixedly installed at the end of the second connecting pipe away from the spot welding box. A spot welding head is provided at the bottom of the second connecting seat. A threaded column is fixedly installed at the top of the spot welding head. A second flexible telescopic tube is fixedly installed on the outside of the second connecting plate. A second air nozzle is fixedly installed at the end of the second flexible telescopic tube. A connecting rod is fixedly installed on the outside of the drive box. A rotating shaft is rotatably installed on the outside of the connecting rod. A display screen is fixedly installed on the outside of the rotating shaft. An installation column is fixedly installed on the outside of the drive box. A tension ring tube is fixedly installed on the outside of the installation column.
[0008] Preferably, the casters are provided in multiple identical sets, and the multiple sets of casters are equidistantly distributed at the bottom of the mounting base, and the casters are equidistantly distributed at the bottom of the spot welding laser welding machine body.
[0009] Preferably, the movable seat is slidably connected to the slide rail, the movable seat is slidably connected to the drive housing, and the movable hole is adapted to the drive housing.
[0010] Preferably, the welding head is adapted to the tenon groove, the diameter of the connecting hole is the same as the diameter of the through hole, and the connecting hole, through hole and insert rod are all provided with two identical sets.
[0011] Preferably, the insertion rod is adapted to both the connecting hole and the through hole, the insertion rod passes through the first connecting seat and the welding head and extends to the outside of the first connecting seat, and the fixing block is adapted to the insertion rod.
[0012] Preferably, the watch strap body is located on top of the placement plate, and another set of the watch strap bodies is located on top of the workbench.
[0013] Preferably, the spot welding head is fixedly connected to the connecting seat two via a threaded post, the threaded post is adapted to the threaded hole, and the threaded post and the connecting seat two are threadedly connected.
[0014] Preferably, the connecting rod does not contact the display screen, and the tension ring tube is fixedly connected to the display screen.
[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This watchband laser welding equipment adopts a dual-station, split, independent welding structure, enabling independent switching between two processes without interference. This greatly improves the equipment's process adaptability and versatility. The entire system features independently designed running laser welding unit and spot laser welding unit, each equipped with dedicated running and spot welding components. The two welding systems have independent drive, control, and optical path execution structures, allowing for independent start / stop, independent parameter adjustment, and independent trajectory operation. This avoids the problems of process interference, parameter coupling, and inability to differentiate adjustments inherent in traditional integrated single-welding-head equipment. In the actual watch strap processing and production process, based on the material characteristics of the watch strap to be processed, continuous running welding or spot welding processes can be precisely matched for different base materials such as stainless steel watch straps, alloy watch straps, and composite metal watch straps. For long strip splicing seams and edge sealing positions of watch straps, continuous running welding is used to form the weld, ensuring the continuity and sealing of the weld. For watch strap link connection points and local reinforcement points, spot welding is used to reinforce them, ensuring connection strength and point accuracy. It truly achieves multi-purpose use and fully covers various watch strap welding processing conditions, greatly improving the applicability and reuse rate of the equipment. 2. This watch strap laser welding equipment, through the setting of a moving component, achieves stable and precise displacement of the watch strap workpiece, effectively improving welding alignment accuracy and finished product consistency. It can realize precise feeding, uniform speed displacement and position fine adjustment of the watch strap workpiece, effectively solving the problems of large alignment deviation, uneven feeding and unstable positioning in traditional watch strap welding. At the same time, the equipment is set with a dual-station placement structure, which can simultaneously place the watch strap body in the placement plate of the moving component and the placement frame of the worktable, realizing alternating feeding and continuous operation, effectively shortening the waiting time for loading and unloading, improving the continuous production capacity of the production line, and adapting to the needs of large-scale batch production. Moreover, the moving seat, slide rail and drive box structure have high compatibility, smooth sliding without jamming, further ensuring that the welding position of each batch of watch straps is uniform and the forming consistency is good. 3. This watch strap laser welding equipment, through the setting of running welding and spot welding components, adopts a detachable modular assembly structure, which makes equipment maintenance convenient, parts replacement costs low, and equipment failure rate low. The running welding head is assembled by a tenon-groove joint and a through-hole rod for fixation. The tenon-groove positioning accuracy is high and the joint fit is tight. With the double locking structure of the rod and the fixing block, it can effectively prevent the welding head from loosening or shifting during long-term operation, ensuring long-term stable welding accuracy. The spot welding head adopts a threaded column and threaded hole thread matching locking method, which is simple to disassemble and assemble, and precise in positioning. It is convenient for operators to quickly disassemble, replace, inspect and maintain the equipment. Compared with the traditional one-piece non-detachable welding head structure, this invention can replace individual worn or damaged welding heads individually without disassembling the entire welding mechanism, which significantly reduces equipment operation and maintenance costs and downtime for maintenance, and ensures stable mass production operation of the equipment for a long time. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the cooperation structure between the running welding machine and the spot welding machine of the present invention; Figure 3 This is a schematic diagram of the interaction between the caster wheel and the worktable in this invention; Figure 4 This is a schematic diagram of the interaction between the welding head and the movable seat of the present invention; Figure 5 This is a schematic diagram of the interaction between the transmission screw and the slide rail of the present invention; Figure 6 This is a schematic diagram of the interaction between the display screen and the stretching ring tube of the present invention; Figure 7 This is a schematic diagram of the interlocking structure of the threaded hole and the threaded post of the present invention.
[0017] In the diagram: 1. Mounting base; 2. Laser welding machine body; 3. Control box; 4. Casters; 5. Mounting seat; 6. Laser welding machine; 7. Laser welding assembly; 701. Connecting plate 1; 702. Connecting column 1; 703. Laser welding box; 704. Flexible telescopic tube 1; 705. Air nozzle 1; 706. Connecting seat 1; 707. Tongue and groove; 708. Connecting hole; 709. Welding head; 710. Through hole; 711. Insert rod; 712. Fixing block; 713. Connecting tube 1; 714. Lighting lamp 1; 8. Extension plate; 9. Mounting box; 10. Moving assembly; 1001. Mounting base plate; 1002. Drive housing; 1003. Motor; 1004. Transmission screw; 1005. Slide rail; 1006. Moving seat; 1007. Moving hole; 1008. Placement plate; 11. Watch strap body; 12. Workbench; 13. Placement frame; 14. Spot welding laser welding machine body; 15. Drive box machine; 16. Operation panel; 17. Support plate; 18. Spot welding machine; 19. Spot welding assembly; 1901. Connecting plate two; 1902. Connecting column two; 1903. Spot welding box; 1904. Connecting seat two; 1905. Threaded hole; 1906. Connecting pipe two; 1907. Lighting lamp two; 1908. Spot welding head; 1909. Threaded column; 1910. Flexible telescopic tube two; 1911. Air nozzle two; 1912. Connecting rod; 1913. Rotating shaft; 1914. Display screen machine; 1915. Mounting column; 1916. Tensioning ring tube. Detailed Implementation
[0018] 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.
[0019] Please see Figure 1-7 This invention provides a technical solution: a watch strap laser welding device, including a mounting base 1 and a worktable 12. A running laser welding machine body 2 is fixedly mounted on the top of the mounting base 1, and a control box 3 is fixedly mounted on the top of the running laser welding machine body 2. Universal wheels 4 are provided at the bottom of the mounting base 1. A mounting seat 5 is fixedly mounted on the top of the running laser welding machine body 2, and a running welding machine 6 is fixedly mounted on the top of the mounting seat 5. A running welding assembly 7 is provided on the outer side of the running welding machine 6. An extension plate 8 is fixedly mounted on the outer side of the mounting base 1, and a mounting box 9 is fixedly mounted on the top of the extension plate 8. A movable assembly is provided on the top of the mounting box 9. Component 10, the top of the moving assembly 10 is provided with a watch strap body 11, the top of the workbench 12 is provided with a placement frame 13, the outer side of the workbench 12 is provided with a spot welding laser welding machine body 14, the top of the spot welding laser welding machine body 14 is fixedly mounted with a drive box 15, the top of the drive box 15 is fixedly mounted with an operation panel 16, the outer side of the drive box 15 is fixedly mounted with a support plate 17, the top of the support plate 17 is fixedly mounted with a spot welding machine 18, and the outer side of the spot welding machine 18 is provided with a spot welding component 19; the moving assembly 10 includes a mounting base plate 1001, the top of the mounting base plate 1001 is fixedly mounted with a drive box. 1002, A motor 1003 is fixedly mounted on the outside of the drive housing 1002. A transmission screw 1004 is fixedly mounted on the output end of the motor 1003. A slide rail 1005 is fixedly mounted on the bottom inside the drive housing 1002. A moving seat 1006 is threadedly connected to the outside of the transmission screw 1004. A moving hole 1007 is opened on the outside of the moving seat 1006. A placement plate 1008 is fixedly mounted on the top of the moving seat 1006. By setting the moving component 10, the watch strap workpiece can be moved smoothly and accurately, effectively improving the welding alignment accuracy and product consistency. It can realize the precise feeding of the watch strap workpiece. Uniform displacement and fine-tuning effectively solve the problems of large alignment deviation, uneven feeding, and unstable positioning in traditional watch strap welding. At the same time, the equipment is equipped with a dual-station placement structure, which can simultaneously place the watch strap body 11 in the placement plate 1008 of the moving component 10 and the placement frame 13 of the worktable 12, realizing alternating feeding and continuous operation, effectively shortening the waiting time for loading and unloading, improving the continuous production capacity of the production line, and adapting to the needs of large-scale batch production. Furthermore, the moving seat 1006 has high structural compatibility with the slide rail 1005 and the drive housing 1002, and the sliding is smooth and without jamming, further ensuring that the welding position of each batch of watch straps is uniform and the forming consistency is good.
[0020] The running welding assembly 7 includes a connecting plate 701, which is mounted on the outside of the running welding machine 6. A connecting column 702 is fixedly mounted on the outside of the connecting plate 701. A running welding box 703 is fixedly mounted on the outside of the connecting column 702. A flexible telescopic tube 704 is fixedly mounted on the outside of the connecting plate 701. An air nozzle 705 is fixedly mounted at the end of the flexible telescopic tube 704. A connecting seat 706 is fixedly mounted on the bottom of the running welding box 703. A tenon 707 is provided at the bottom of the connecting seat 706. A connecting hole 708 is provided on the outside of the connecting seat 706. A welding head 709 is provided at the bottom of the connecting seat 706. A through hole 710 is provided on the outside of the welding head 709. A plug rod 711 is provided on the outer side of the connector 706, and a fixing block 712 is provided on the outer side of the plug rod 711. A connecting pipe 713 is fixedly installed on the outer side of the running welding box 703, and a lighting lamp 714 is fixedly installed on the outer side of the connecting pipe 713. By setting up the running welding assembly 7, a detachable modular assembly structure is set up, which makes equipment maintenance convenient, parts replacement costs low, and equipment failure rate low. The running welding head 709 is assembled by inserting a tenon 707 and fixing it through the plug rod 711. The tenon 707 has high positioning accuracy and tight insertion. With the double locking structure of the plug rod 711 and the fixing block 712, the welding head 709 can be effectively prevented from loosening or shifting during long-term operation, ensuring stable welding accuracy over a long period of time.
[0021] The spot welding assembly 19 includes a second connecting plate 1901, which is installed on the outside of the spot welding machine 18. A second connecting post 1902 is fixedly installed on the outside of the second connecting plate 1901. A spot welding box 1903 is fixedly installed on the outside of the second connecting post 1902. A second connecting seat 1904 is fixedly installed at the bottom of the spot welding box 1903. A threaded hole 1905 is opened at the bottom of the second connecting seat 1904. A second connecting pipe 1906 is fixedly installed on the outside of the spot welding box 1903. A second lighting lamp 1907 is fixedly installed at the end of the second connecting pipe 1906 away from the spot welding box 1903. A spot welding head 1908 is provided at the bottom of the second connecting seat 1904. A threaded post 1909 is fixedly installed on the top of the spot welding head 1908. A second flexible telescopic tube 1910 is fixedly installed on the outside of the second connecting plate 1901. The port of the second flexible telescopic tube 1910 is fixedly installed with... The device includes a jet nozzle 1911. A connecting rod 1912 is fixedly installed on the outside of the drive housing 15. A rotating shaft 1913 is rotatably installed on the outside of the connecting rod 1912. A display screen 1914 is fixedly installed on the outside of the rotating shaft 1913. A mounting column 1915 is fixedly installed on the outside of the drive housing 15. A tension ring tube 1916 is fixedly installed on the outside of the mounting column 1915. By setting up a spot welding assembly 19, the spot welding head 1908 adopts a threaded locking method with a threaded column 1909 and a threaded hole 1905. It is simple to disassemble and assemble, and the positioning is accurate. It is convenient for operators to quickly disassemble, replace, inspect and maintain the device. Compared with the traditional integrated non-removable welding head structure, this invention can replace a single worn or damaged welding head 709 individually without disassembling the entire welding mechanism. This greatly reduces the equipment operation and maintenance costs and downtime for maintenance, and ensures that the equipment can operate stably for a long time.
[0022] The casters 4 are provided in multiple sets, which are equidistantly distributed at the bottom of the mounting base 1 and at the bottom of the spot welding laser welding machine body 14. By providing the casters 4, the machine has flexible movement and transportation capabilities. The placement of the equipment can be freely adjusted according to the workshop production line layout, workstation planning, and production needs. It is suitable for multi-workstation rotation operation and zoned production operation mode of the assembly line. The equipment is easy to move, convenient to relocate, and flexible in positioning. At the same time, the multi-point load-bearing structure can ensure that the equipment is placed stably, effectively avoiding the equipment tilting and shaking, and ensuring the stability of high-precision laser welding operation.
[0023] The movable seat 1006 is slidably connected to the slide rail 1005, and the movable seat 1006 is slidably connected to the drive housing 1002. The movable hole 1007 is adapted to the drive housing 1002. By setting the movable seat 1006 and the slide rail 1005, the movable seat 1006 has high linear displacement accuracy, low sliding resistance, smooth operation without jamming or left and right deviation throughout the entire process. This effectively ensures the uniform and stable feeding of the watch strap workpiece, further improves the consistency of the welding trajectory and the uniformity of the finished product appearance, and ensures high consistency and high precision of batch welding production from the perspective of the conveying structure.
[0024] The welding head 709 is compatible with the tenon 707. The diameter of the connecting hole 708 is the same as that of the through hole 710. Two identical sets of connecting holes 708, through holes 710, and insertion rods 711 are provided. By configuring the welding head 709 and the tenon 707, rapid alignment and insertion of the tenon and mortise are achieved, resulting in high alignment accuracy and tight fit. This effectively limits the horizontal displacement of the welding head 709, forming a symmetrical locking layout on both sides. The compatible structure of the welding head 709 and the tenon 707 enables rapid positioning and installation of the welding head 709. Combined with the double-sided locking structure, this significantly improves the installation stability of the welding head 709, providing strong resistance to equipment vibration interference. It ensures no displacement or loosening during long-term operation, effectively guaranteeing the straightness, flatness, and uniformity of the weld seam during continuous welding operations.
[0025] The insertion rod 711 is compatible with both the connecting hole 708 and the through hole 710. The insertion rod 711 passes through the connecting seat 706 and the welding head 709 and extends to the outside of the connecting seat 706. The fixing block 712 is compatible with the insertion rod 711. By setting the insertion rod 711 with the connecting hole 708 and the through hole 710, the welding head 709 and the connecting seat 706 form an integral rigid connection, eliminating gap wobbling and slight displacement. The structure has extremely strong stability and can effectively cope with long-term, high-frequency, and continuous welding conditions, ensuring that the welding accuracy of the equipment remains constant over a long period of time and reducing the defect rate in mass production.
[0026] The watch strap body 11 is located on the top of the placement plate 1008, and another set of watch strap bodies 11 is located on the top of the workbench 12. By setting the watch strap bodies 11, dynamic continuous running welding and static fixed spot welding can be carried out in parallel. The workstation switching is flexible and loading and unloading do not require machine downtime, which effectively improves the equipment utilization rate and unit time production capacity. It can adapt to the diverse welding needs of different styles and specifications of watch straps, and greatly improve the equipment's versatility and mass production adaptability.
[0027] The spot welding head 1908 is fixedly connected to the connecting seat 1904 via a threaded post 1909. The threaded post 1909 is adapted to the threaded hole 1905, and the threaded post 1909 and the connecting seat 1904 are connected by threads. By setting the threaded post 1909 and the connecting seat 1904, the spot welding head 1908 is easy to assemble and disassemble, accurately positioned, firmly locked, and has high coaxiality. It can effectively ensure the consistency of the spot position accuracy for each pulse spot welding, with no deviation in the weld position and uniform formation. At the same time, it is easy to clean and remove impurities, replace worn parts, and carry out regular inspection and maintenance, which greatly reduces the difficulty of equipment operation and maintenance and production costs.
[0028] The connecting rod 1912 and the display screen 1914 do not contact each other, while the tension ring tube 1916 is fixedly connected to the display screen 1914. By setting the tension ring tube 1916 and the display screen 1914, the display screen 1914 can be flexibly supported and its angle limited, allowing the display screen angle to be freely adjusted and then stably fixed without loosening or sagging. This facilitates operators to observe equipment parameters, operating status, and welding screens from multiple angles, providing a good human-machine interaction experience and high ease of operation. It further enhances the overall intelligence and operability of the equipment and is suitable for long-term continuous production operations.
[0029] Working Principle: First, the operator conducts a comprehensive inspection and assembly of all components of the device. After installation, the entire device undergoes comprehensive debugging. After the equipment is powered on, the control box 3 on top of the running laser welding machine 2 and the operation panel 16 and display screen 1914 on top of the spot welding laser welding machine 14 complete the power-on self-test. The system detects the optical path status, laser output power, and servo operating parameters of the running laser welding machine 6 and the spot welding machine 18, respectively. At the same time, it detects the transmission accuracy of the motor 1003, transmission screw 1004, and slide rail 1005 of the moving component 10, confirming that there is no jamming or fault in each structure and that the parameters are zeroed. The operator distinguishes different base materials such as stainless steel and alloy materials according to the material of the watch strap body 11 to be processed. The system is designed to be customized by pre-setting and retrieving corresponding laser running welding or laser spot welding process parameters. This allows for parameter settings for two independent welding systems, ensuring the equipment adapts to the welding requirements of the current watchband material. This guarantees controllable heat-affected zone and welding precision matching the substrate characteristics. Simultaneously, the angle of the display screen 1914 can be adjusted via the rotating shaft 1913, and fixed in place with the stretching ring tube 1916. This facilitates real-time monitoring of equipment operating parameters and processing status by the operator. The operator places the watchband body 11 to be processed in two separate workstations: one on the placement plate 1008 at the top of the moving component 10 for dynamic feed continuous running welding, and the other inside the placement frame 13 at the top of the worktable 12. For static spot welding or pre-work preparation, multiple sets of casters 4 evenly distributed at the bottom of the equipment can be pre-adjusted to ensure stable placement of the entire machine. This effectively avoids the impact of equipment tilting and vibration on high-precision welding, providing a stable working condition for subsequent precision welding operations. After the workpiece is placed, the moving component 10 starts its operating program, driving the motor 1003 on the outside of the drive housing 1002. The output of the motor 1003 drives the transmission screw 1004 to rotate. Utilizing the screw thread transmission structure, the threaded moving seat 1006 is driven to slide linearly along the slide rail 1005 with high precision. The moving seat 1006 is matched with the drive housing 1002 through the moving hole 1007, ensuring smooth, non-deviation-free, and stable sliding throughout the entire process. The system can precisely achieve uniform feed, micro-displacement, and fine-tuning of position according to the welding trajectory requirements of the watch strap. This drives the watch strap body 11 on top of the placement plate 1008 to precisely move to the welding area directly below the running welding component 7, completing precise alignment. For continuous welding conditions such as long strip splicing seams and edge sealing welds of the watch strap, the running welding laser welding machine 2 is activated. The running welding machine 6 drives the running welding component 7 to carry out continuous laser running welding operations. During the operation, the connecting plate 701 and the connecting column 702 stably support the running welding box 703, ensuring the welding operation height is stable. The flexible telescopic tube 704, together with the air nozzle 705, blows away fumes, molten spatter particles, and oxide impurities from the welding area in real time, effectively avoiding defects such as weld porosity, slag inclusions, and blackening.Meanwhile, the lighting lamp 714 at the end of the connecting pipe 713 continuously illuminates the weld area, ensuring a clear welding trajectory and precise alignment for long-trajectory welding. The running welding head 709 uses a tenon and groove 707 for positioning, and is locked in place by two sets of connecting holes 708, through holes 710, and insertion rods 711. It is further reinforced by a fixing block 712, ensuring a firm, vibration-resistant, and non-displacement assembly. This guarantees stable precision during long-term continuous running welding. Relying on the equipment's precise parameter matching capabilities, the laser power and welding speed are adaptively adjusted for different materials such as stainless steel and alloy watch straps, achieving low heat-affected zone welding. This effectively reduces watch strap welding deformation and ensures a tight, flat, and uniform weld. It also provides targeted reinforcement for watch strap link connection points, local reinforcement points, and joint reinforcement. In welding operation, the spot welding laser welding machine body 14 is started independently, and the running welding mechanism does not need to participate in the operation. The two mechanisms do not interfere with each other and operate independently. The drive box 15 controls the spot welding machine 18 to work. The spot welding assembly 19, which is stably supported by the support plate 17, performs pulsed precision spot welding. The spot welding head 1908 is threaded and fixed by the top threaded post 1909 and the threaded hole 1905 at the bottom of the connecting seat 1904. It has high coaxiality, accurate positioning, and convenient disassembly and assembly. During the welding process, the flexible telescopic tube 1910 and the air nozzle 1911 accurately blow air to cool down, remove impurities and dust from the tiny spot welding points, effectively reducing the heat-affected zone of spot welding and avoiding local oxidation and weld deformation. The lighting lamp 1907 illuminates the tiny weld points. Precise illumination ensures accurate alignment for spot welding. Based on the differences in hardness and thickness of stainless steel and alloy watch straps, the laser independently adjusts the spot welding pulse frequency, laser energy, and light emission duration to guarantee smooth, full, and strong welds without incomplete welds, spalls, or localized deformation. This meets the spot reinforcement welding needs of watch straps made of different materials. While the moving component 10 drives the dynamic watch strap to complete the running welding operation, the watch strap workpieces inside the placement frame 13 on the top of the worktable 12 can simultaneously complete spot welding or be ready for pre-processing. This allows for staggered parallel operation of the two processes, alternating material loading, and uninterrupted continuous production. After welding a single workpiece, the moving component 10 automatically resets, allowing operators to quickly unload finished products and load new workpieces without requiring equipment downtime. This significantly shortens the material loading and unloading gap, making it suitable for large-scale, assembly-line mass production of various watch strap styles. It significantly improves overall production efficiency. During long-term mass production, if wear, dirt accumulation, or precision degradation occurs in the welding head 709, it can be individually disassembled and maintained. For running welds, the welding head 709 can be quickly disassembled and replaced by pulling out the insert 711 and removing the fixing block 712. For spot welds, the threaded post 1908 can be directly screwed on to complete disassembly, cleaning, and replacement without disassembling the entire machine. Maintenance is convenient, downtime is extremely short, and after maintenance, recalibration is performed before the equipment can enter the next round of continuous welding operations, ensuring long-term stable mass production, consistent welding precision, and uniform finished product quality.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.
Claims
1. A watch strap laser welding device, comprising a mounting base (1) and a worktable (12), characterized in that: A laser welding machine body (2) is fixedly mounted on the top of the mounting base (1). A control box (3) is fixedly mounted on the top of the laser welding machine body (2). A caster wheel (4) is provided at the bottom of the mounting base (1). A mounting seat (5) is fixedly mounted on the top of the laser welding machine body (2). A laser welding machine (6) is fixedly mounted on the top of the mounting seat (5). A laser welding assembly (7) is provided on the outside of the laser welding machine (6). An extension plate (8) is fixedly mounted on the outside of the mounting base (1). A mounting box (9) is fixedly mounted on the top of the extension plate (8). A movable [device] is provided on the top of the mounting box (9). The component (10) has a watch strap body (11) on its top, a placement frame (13) on its top, a spot welding laser welding machine body (14) on the outside of the workbench (12), a drive box machine (15) fixedly installed on the top of the spot welding laser welding machine body (14), an operation panel (16) fixedly installed on the top of the drive box machine (15), a support plate (17) fixedly installed on the outside of the drive box machine (15), a spot welding machine (18) fixedly installed on the top of the support plate (17), and a spot welding component (19) on the outside of the spot welding machine (18). The moving component (10) includes a mounting base plate (1001), a drive housing (1002) is fixedly mounted on the top of the mounting base plate (1001), a motor (1003) is fixedly mounted on the outside of the drive housing (1002), a transmission screw (1004) is fixedly mounted on the output end of the motor (1003), a slide rail (1005) is fixedly mounted on the bottom inside the drive housing (1002), a moving seat (1006) is threadedly connected to the outside of the transmission screw (1004), a moving hole (1007) is opened on the outside of the moving seat (1006), and a placement plate (1008) is fixedly mounted on the top of the moving seat (1006).
2. The watch strap laser welding equipment according to claim 1, characterized in that: The running welding assembly (7) includes a connecting plate (701), which is installed on the outside of the running welding machine (6). A connecting column (702) is fixedly installed on the outside of the connecting plate (701), and a running welding box (703) is fixedly installed on the outside of the connecting column (702). A flexible telescopic tube (704) is fixedly installed on the outside of the connecting plate (701), and an air nozzle (705) is fixedly installed at the end of the flexible telescopic tube (704). A connecting seat (706) is fixedly installed at the bottom of the running welding box (703). The bottom of the first (706) is provided with a tenon groove (707), the outer side of the first (706) is provided with a connecting hole (708), the bottom of the first (706) is provided with a welding head (709), the outer side of the welding head (709) is provided with a through hole (710), the outer side of the first (706) is provided with a plug rod (711), the outer side of the plug rod (711) is provided with a fixing block (712), the outer side of the running welding box (703) is fixedly installed with a connecting pipe (713), and the outer side of the connecting pipe (713) is fixedly installed with a lighting lamp (714).
3. The watch strap laser welding equipment according to claim 1, characterized in that: The spot welding assembly (19) includes a second connecting plate (1901), which is installed on the outside of the spot welding machine (18). A second connecting column (1902) is fixedly installed on the outside of the second connecting plate (1901). A spot welding box (1903) is fixedly installed on the outside of the second connecting column (1902). A second connecting seat (1904) is fixedly installed at the bottom of the spot welding box (1903). A threaded hole (1905) is opened at the bottom of the second connecting seat (1904). A second connecting pipe (1906) is fixedly installed on the outside of the spot welding box (1903). A second lighting lamp (1907) is fixedly installed at the end of the second connecting pipe (1906) away from the spot welding box (1903). The second connecting seat (1904)... A spot welding head (1908) is provided at the bottom. A threaded column (1909) is fixedly installed on the top of the spot welding head (1908). A flexible telescopic tube (1910) is fixedly installed on the outer side of the connecting plate (1901). A jet nozzle (1911) is fixedly installed at the port of the flexible telescopic tube (1910). A connecting rod (1912) is fixedly installed on the outer side of the drive box (15). A rotating shaft (1913) is rotatably installed on the outer side of the connecting rod (1912). A display screen (1914) is fixedly installed on the outer side of the rotating shaft (1913). A mounting column (1915) is fixedly installed on the outer side of the drive box (15). A tension ring tube (1916) is fixedly installed on the outer side of the mounting column (1915).
4. The watch strap laser welding equipment according to claim 1, characterized in that: The universal wheels (4) are provided in multiple identical sets. The multiple sets of universal wheels (4) are located at the bottom of the mounting base (1) and are distributed at equal intervals. The universal wheels (4) are located at the bottom of the spot welding laser welding machine body (14) and are distributed at equal intervals.
5. The watch strap laser welding equipment according to claim 1, characterized in that: The movable base (1006) is slidably connected to the slide rail (1005), the movable base (1006) is slidably connected to the drive housing (1002), and the movable hole (1007) is adapted to the drive housing (1002).
6. The watch strap laser welding equipment according to claim 2, characterized in that: The welding head (709) is adapted to the tenon (707), the diameter of the connecting hole (708) is the same as the diameter of the through hole (710), and the connecting hole (708), the through hole (710) and the insert (711) are all provided with two identical sets.
7. The watch strap laser welding equipment according to claim 2, characterized in that: The insertion rod (711) is adapted to both the connecting hole (708) and the through hole (710). The insertion rod (711) passes through the first connecting seat (706) and the welding head (709) and extends to the outside of the first connecting seat (706). The fixing block (712) is adapted to the insertion rod (711).
8. The watch strap laser welding equipment according to claim 2, characterized in that: The watch strap body (11) is located on top of the placement plate (1008), and another set of the watch strap bodies (11) is located on top of the workbench (12).
9. The watch strap laser welding equipment according to claim 3, characterized in that: The spot welding head (1908) is fixedly connected to the connecting seat two (1904) via a threaded post (1909). The threaded post (1909) is adapted to the threaded hole (1905), and the threaded post (1909) and the connecting seat two (1904) are threadedly connected.
10. A watch strap laser welding device according to claim 3, characterized in that: The connecting rod (1912) does not contact the display screen (1914), and the tension ring tube (1916) is fixedly connected to the display screen (1914).