Watchcase assembly line body and wristband equipment assembly bus

Abstract

The invention relates to the technical field of wristwatch equipment, in particular to a watchcase assembly line body and a wristband equipment assembly bus, the watchcase assembly line body comprises a base, a first assembly module, a second assembly module and a conveying module; the first assembly module is arranged on the base, and the first assembly module is configured to assemble the first key cap, the spring and the snap spring of the first key assembly to the watchcase; the second assembly module is arranged on the base, and the second assembly module is configured to assemble the bar tube, the nut and the second key cap to the watchcase; the conveying module is arranged on the base. The conveying module is configured to convey the watchcase to flow between the first assembling module and the second assembling module. The invention aims to solve the problems of low labor efficiency and fluctuation of yield in the assembly of the watchcase and the key.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent wearable device processing, and in particular to a watch case assembly line and a wristband device assembly bus. Background Art

[0002] As a mainstream wearable smart device, the basic structure of a smart watch usually includes a case and buttons. The buttons are integrated on the side of the case and are the core components for realizing human-computer interaction. Users can trigger the corresponding functional response of the device through different operations such as twisting and pressing.

[0003] Specifically, the buttons of smart watches often adopt a differentiated structural design to distinguish their functions: one is the first button, which is circular as a whole, and the other is the second button, which is square as a whole. The two have clear functional divisions: when twisting the first button, fine adjustment of device parameters can be achieved, such as adjusting the volume level, screen display brightness, alarm setting time, or adjusting numerical parameters such as target pace and target exercise distance in exercise mode; when pressing the second button, directional selection and module switching operations can be completed, such as switching options in the menu list, contact interface or input interface, such as selecting a specific contact, adjusting alarm time parameters, and switching between different functional modules such as time display module, exercise monitoring module, heart rate monitoring module, etc. Through differentiated operation of the two types of buttons, users can efficiently complete the interaction with the smart watch and realize diversified function calls. However, current technologies still rely heavily on manual labor to assemble smartwatch cases and buttons. Compared to automated assembly processes, manual assembly not only suffers from lower efficiency and difficulty adapting to large-scale production needs, but is also prone to fluctuations in product yield due to human error. This makes it impossible to meet the high production efficiency and product quality stability requirements of the smart device manufacturing industry, becoming a key bottleneck restricting capacity and quality improvements. Summary of the Invention

[0004] The main purpose of the present invention is to provide a watch case assembly line, which aims to solve the problems of low labor efficiency and fluctuating yield rate in the assembly of watch cases and buttons.

[0005] To achieve the above-mentioned purpose, the watch case assembly line includes a first button assembly and a second button assembly for respectively mounting the first button assembly and the second button assembly in the watch case. The first button assembly includes at least a first keycap, a spring, and a retaining spring. The second button assembly includes at least a second keycap, a tubing, and a nut. The watch case assembly line includes: base; a first assembly module, disposed on the base, configured to assemble the first keycap of the first button assembly, the spring, and the retaining spring to the watch case; a second assembly module, disposed on the base, configured to assemble the tubing, the nut, and the second keycap to the watch case; and A conveying module is provided on the base, and is configured to convey the watch case between the first assembly module and the second assembly module.

[0006] In one embodiment, the first assembly module includes: a first dial adjusting device configured to pick up the watch case on the conveying module and adjust the watch case to a first assembly posture with the first button hole exposed; a first keycap installation device, configured to pick up the first keycap from a key magazine and insert the first keycap equipped with the spring into the first key hole of the watch case in the first assembly posture in a predetermined posture; a spring loading device, the spring loading device being configured to pick up the spring in the spring magazine and assemble the spring into the mounting hole of the first keycap located in the first keycap mounting device; and A circlip installation device is configured to pick up the circlip in the circlip material bin and install the circlip to engage with the dial and the first keycap.

[0007] In one embodiment, the watch case located in the conveying module is in a first horizontal transport posture; the first assembly posture is a vertical assembly posture; The first dial adjustment device includes a flip mechanism and a rotary clamping mechanism provided on the flip mechanism, wherein the flip mechanism is provided on the base and can switch between a picking posture and an installation posture; the rotary clamping mechanism is configured to pick up the watch case located on the conveying module and drive the watch case to rotate along its circumferential direction; wherein, when the flip mechanism is in the installation posture, the rotary clamping mechanism can drive the dial to rotate to the vertical assembly posture so that the first button hole is arranged downward; and / or, The first keycap installation device includes a lifting mechanism and a key picking mechanism. The key picking mechanism is configured to pick up the first keycap from the key hopper. The lifting mechanism is configured to drive the key picking mechanism to move upward to push the picked up first keycap into the first key hole of the watch case located on the first dial adjustment device.

[0008] In one embodiment, the first assembly module further includes a clip spring installation device, and the clip spring installation device includes: a circlip collet configured to clamp the circlip; and, A pushing mechanism is configured to drive the circlip collet to move toward the watch case, so as to assemble the circlip on the circlip collet with the first keycap and the watch case.

[0009] In one embodiment, the first assembly module further includes a spring loading device, and the spring loading device includes: A vibration platform, wherein the vibration platform is provided with at least one limiting hole, wherein the spring can be limited in the limiting hole and maintain a vertical posture during the vibration process; and A feeding mechanism, comprising a manipulator, a fixed sleeve, and a picking needle, wherein the manipulator is disposed on the base, the fixed sleeve is disposed on the gripping end of the manipulator, and the picking needle is retractably inserted into the sleeve, and the picking needle is configured to pick up the spring located in the limiting hole; In which, the loading mechanism has a picking state and a returning state. In the picking state, the picking needle has an interference fit with the spring in a vertical posture; in the returning state, the picking needle retracts into the fixed sleeve so that the spring can fall into the mounting hole of the first keycap under the abutment of the fixed sleeve.

[0010] In one embodiment, the second assembly module includes: a second dial adjusting device, the second dial adjusting device being configured to pick up the watch case on the conveying module and adjust the watch case to a second assembly posture with the second button hole exposed; a barometric tube installation device, the barometric tube installation device being configured to pick up the barometric tube from the barometric tube silo and insert the barometric tube into the second button hole of the watch case on the second dial adjustment device in a predetermined posture; A second keycap installation device, wherein the second keycap installation device is configured to pick up the second keycap from the key magazine and insert the second keycap into the second key hole of the watch case in the second assembly posture in a predetermined posture; and A nut installation device is configured to pick up the nut in the nut bin and drive the nut to be fastened to the second keycap in a predetermined posture.

[0011] In one embodiment, the second assembly module further includes a screw locking device, which is configured to pick up screws from a screw magazine and lock the screws between the bar tube and the watch case to fix the bar tube to the watch case.

[0012] In one embodiment, the second assembly module further includes a welding device, and the welding device is configured to weld the screw to the bar tube; and / or, the welding device is configured to weld the nut to the second keycap.

[0013] In one embodiment, the watch case located in the conveying module is in a first horizontal transport posture; the second assembly posture is a vertical assembly posture; The second dial adjustment device includes a rotary clamping mechanism, the rotary clamping mechanism including a turntable and a clamping claw structure provided on the turntable, the clamping claw structure being configured to grasp the watch case, and the turntable being configured to drive the clamping claw structure to rotate along the axial direction of the dial so that the dial is in the vertical assembly posture with the second button hole facing upward; a guide groove for accommodating the nut is formed on one side of the dial where the clamping claw is provided; The nut installation device includes a nut loading mechanism and a pushing mechanism, the nut loading mechanism is configured to pick up the nut in the nut hopper to the guide groove; in the second assembly posture, the guide groove is arranged corresponding to the second key hole; the pushing mechanism is arranged in the guide groove and is configured to push the nut to move along the guide groove until it is assembled with the second keycap inserted in the second key hole.

[0014] The present application also provides a wristband device assembly bus, which includes the watch case assembly line body described above.

[0015] In the technical solution, the watch shell assembly line provided by the application can solve the problems of low efficiency and fluctuation of good product rate in manual assembly of the smart watch shell and the button by adopting the combination of the first assembly module, the second assembly module and the conveying module. Specifically, the first assembly module can sequentially assemble the first keycap, the spring and the circlip into the first button hole of the watch shell to complete the installation of the first button assembly; the second assembly module can assemble the bar pipe, the nut and the second keycap into the second button hole of the watch shell to complete the installation of the second button assembly. The whole process is automatically completed by the modules and the conveying module without manual operation, which avoids human errors such as uneven force and positioning deviation in manual operation, reduces the generation of defective products caused by insufficient assembly precision, and improves the fluctuation problem of good product rate. In addition, the conveying module replaces manual operation to complete the transfer of the watch shell between the two modules, which on the one hand eliminates the additional quality risks such as watch shell bumping and positioning deviation in the process of manual transfer of the watch shell, and on the other hand realizes the transfer of the watch shell between the first assembly module and the second assembly module, forms a continuous process of “first module assembly to second module assembly” or “second module assembly to first module assembly”, avoids process stagnation caused by manual transfer, and further improves the production rhythm of the whole line. In summary, the watch shell assembly line provided by the application can effectively replace manual assembly, which not only significantly improves the assembly efficiency to adapt to large-scale production demand, but also ensures the assembly precision by reducing human intervention to stabilize the good product rate of the product. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can be obtained without creative labor based on the drawings shown.

[0017] Figure 1 The mechanism layout of an embodiment of the first assembly module provided by the application is shown in the figure. Figure 2 The structure schematic diagram of an embodiment of the first watch dial adjusting device provided by the application in the first state is shown in the figure. Figure 3 The structure schematic diagram of an embodiment of the first watch dial adjusting device provided by the application in the second state is shown in the figure. Figure 4 The structure schematic diagram of an embodiment of the first keycap mounting device provided by the application is shown in the figure. Figure 5 The structure schematic diagram of an embodiment of the circlip mounting device provided by the application is shown in the figure. Figure 6 The structure schematic diagram of an embodiment of the feeding mechanism provided by the application is shown in the figure. Figure 7 A diagram showing the structure of a vibration platform according to an embodiment of the present invention; Figure 8 A schematic diagram of the structure of an embodiment of a bar pipe installation device provided by the present invention; Figure 9 A schematic diagram of the structure of an embodiment of the turntable provided by the present invention; Figure 10 This is a module layout diagram of an embodiment of the watch case assembly line provided by the present invention.

[0018] Description of Figure Numbers: 100. Case assembly line; 10. Base; 101. Circlip hopper; 11. Case hopper; 12. Information label attaching module; 13. First assembly module; 14. Oiling module; 15. Second assembly module; 16. Unloading module; 17. Conveying module; 20. First dial adjustment device; 21. Flipping mechanism; 22. Rotary clamping mechanism; 23. Rotating shaft; 24. Fixed bracket; 25. Turntable; 26. Guide groove; 30. First keycap installation device; 31. Lifting mechanism; 32. Key picking mechanism; 33. Key bearing seat; 34. Guide member; 40. Circlip installation device; 41. Pushing mechanism; 42. Circlip chuck; 50. Spring feeding device; 51. Vibrating platform; 60. Feeding mechanism; 61. Fixed sleeve; 62. Picking needle; 70. Bar tube installation device; 71. Vacuum suction nozzle; 80. Pushing mechanism.

[0019] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0023] See also Figure 1 and Figure 10 In one embodiment, the watch case assembly line 100 includes: Base 10; A first assembly module 13 is provided on the base 10 and is configured to assemble the first keycap, the spring, and the retaining spring of the first button assembly to the watch case; A second assembly module 15 is provided on the base 10 and is configured to assemble the bar tube, the nut and the second keycap to the watch case; and The conveying module 17 is disposed on the base 10 and is configured to convey the watch case between the first assembly module 13 and the second assembly module 15 .

[0024] It should be noted that the base 10 is the basic supporting structure of the entire watch case assembly line 100. It provides a stable installation platform for other modules and components. In actual applications, the base 10 can adopt a variety of different materials and structural designs, such as a cast iron platform or an aluminum alloy frame.

[0025] The first assembly module 13 is mainly responsible for assembling the first keycap, spring and retaining spring of the first button assembly to the watch case. This function can be achieved through a variety of different mechanical structures and automated control methods. In one embodiment, the first assembly module 13 adopts a multi-axis robotic arm in conjunction with an automated feeding device. The multi-axis robotic arm has high flexibility and high-precision motion control capabilities, and can accurately grasp and place parts in three-dimensional space. A special clamp is installed at the end of the robotic arm. The clamp has an adaptive adjustment function and can automatically adjust the clamping force and position according to the different sizes and shapes of the first keycap, spring and retaining spring to ensure the stability of the grasping. For example, the automated feeding device includes three independent vibration plates, which are used to transport the first keycap, spring and retaining spring respectively. The vibration plate arranges the parts in an orderly manner and transports them to the designated material collection position by vibration. The robotic arm grabs the parts from the material collection position of each vibration plate in turn according to the preset program and accurately assembles them into the first button hole of the watch case. For example, first grab the first keycap, put it into the first key hole and preliminarily position it, then grab the spring, accurately put the spring on the corresponding position of the first keycap, and finally grab the retaining spring, install the retaining spring to the designated position to complete the assembly of the first key assembly. In another embodiment, the first assembly module 13 adopts a turntable 25 assembly structure. In this case, the first module includes a rotatable circular turntable 25, and a plurality of workstations are evenly distributed on the turntable 25. Each workstation corresponds to a fixing fixture for the watch case to be assembled. Around the turntable 25, there are multiple assembly workstations, which are responsible for the assembly operations of the first keycap, spring and retaining spring respectively. When the turntable 25 rotates, the watch case passes through each assembly workstation in turn with the fixture. For example, at the first keycap assembly workstation, a mechanical device with a vacuum adsorption function is used to suck the first keycap from the keycap silo above and accurately place it in the first key hole of the watch case. The watch case then rotates along the turntable 25 to the spring assembly station, where a specially designed spring feed mechanism pushes the spring from the magazine via a mechanical push rod and uses a guide device to accurately fit the spring onto the first keycap. Finally, at the circlip assembly station, a pneumatic gripper grabs the circlip from the circlip magazine and installs it into the watch case.

[0026] The second assembly module 15 is responsible for assembling the tubing, nut, and second keycap to the watch case. Its structure and operating method vary widely. In one embodiment, the second assembly utilizes a linear guide assembly structure. A set of parallel linear guides is mounted on the base 10, upon which a sliding assembly platform is mounted. The assembly platform houses multiple assembly mechanisms with different functions, including a tubing installation mechanism, a nut tightening mechanism, and a second keycap installation mechanism. The tubing installation mechanism utilizes a pneumatic gripper coupled with a linear module. The pneumatic gripper grasps the tubing from a tubing magazine and then, through the linear module, precisely inserts the tubing into the second keyhole of the watch case. The second keycap installation mechanism uses a vacuum suction cup to extract the second keycap from the second keycap magazine and press it onto the top of the tubing. The nut tightening mechanism utilizes an electric screwdriver. Once the second keycap is properly installed, the electric screwdriver extracts the nut from the nut hopper and screws it onto the second keycap, completing the assembly of the second key assembly. During the assembly process, the movements of each mechanism are precisely controlled by a programmable logic controller (PLC) to ensure assembly sequence and accuracy. In another embodiment, the second assembly module 15 can also utilize a collaborative robot module. Collaborative robots offer the safety and flexibility of working collaboratively with humans, enabling them to complete relatively complex assembly tasks. This collaborative robot is equipped with a high-precision vision recognition system that uses a camera to identify and locate the bar tube, nut, and second keycap. During the bar tube assembly phase, the collaborative robot uses a specialized tool on its end effector to grab the bar tube from the bar tube rack and, based on feedback from the vision system, accurately insert the bar tube into the second keyhole of the watch case. To install the second keycap, the collaborative robot uses vacuum suction to remove the second keycap from the tray and accurately press it onto the bar tube. To install the nut, the collaborative robot first picks up the nut from a nut feeder and then uses a torque sensor to precisely control the tightening process, ensuring that the tightening torque meets standard requirements.

[0027] The conveying module 17 can be a belt conveyor composed of a motor, a driving roller, a rubber conveyor belt, etc. The conveying module 17 can also be a case clamping fixture that is driven by a motor and runs on a customized track. Of course, in other embodiments, the conveying module 17 can also be a chain conveying mechanism or a pneumatic slide transmission mechanism. But no matter which of the above-mentioned implementation forms is adopted, as long as it can stably carry the watch case and realize the transfer of the watch case from the watch case silo 11, and make it flow accurately between the first assembly module 13 and the second assembly module 15, and finally convey the assembled watch case to the unloading module 16. The conveying module 17 needs to meet the automation control requirements of the assembly line (such as coordinated start and stop with the module, and positioning accuracy adapted to assembly requirements), which all belong to the protection scope of the conveying module 17 in the present watch case assembly line 100 and are not specifically limited here. Different implementation forms can be flexibly selected according to production scale, watch case material, workshop environment and precision requirements. The core goal is to ensure stability, accuracy and efficiency during the watch case conveying process, and provide reliable station connection support for subsequent button assembly.

[0028] In addition, the watch case assembly line 100 can adopt two modes of parallel feeding or serial feeding of the conveying module 17. When the conveying module 17 is used for parallel feeding, the two assembly modules operate synchronously, and the first assembly module 13 and the second assembly module 15 are symmetrically arranged on both sides of the conveying module 17, and the feeding ends of the two are precisely connected to the corresponding discharge ports of the conveying module 17; please refer to Figure 10 When the conveying module 17 is used for serial feeding, the two assembly modules operate in sequence. At this time, the conveying module 17 is arranged linearly along the base 10. The watch case is first conveyed to the first assembly module 13 or the second assembly module 15 located at the upstream starting position of the conveying module 17. After the first button component or the second button component is assembled, it is transferred by the conveying module 17 to the second assembly module 15 or the first assembly module 13 located downstream. A buffer area can be provided in the middle section of the first assembly module 13 and the second assembly module 15 to buffer the process rhythm difference between the two assembly modules.

[0029] In this technical solution, the watch case assembly line 100 provided by the present invention can solve the problems of low efficiency and yield fluctuation in manual assembly of smart watch cases and buttons by adopting a combination of a first assembly module 13, a second assembly module 15 and a conveying module 17. Specifically, the first assembly module 13 can assemble the first keycap, spring and retaining spring into the first button hole of the watch case in sequence to complete the installation of the first button assembly; the second assembly module 15 can assemble the tubing, nut and second keycap into the second button hole of the watch case to complete the installation of the second button assembly. The entire process does not require manual operation and is automatically completed by each module and the conveying module 17, avoiding human errors such as uneven force and positioning deviation in manual operation, reducing the production of defective products due to insufficient assembly accuracy, and improving the problem of yield fluctuation. In addition, the conveying module 17 replaces manual labor to complete the transfer of the watch case between the two modules. On the one hand, it eliminates the additional quality risks such as the watch case bumping, positioning deviation, etc. that may occur during the manual handling of the watch case. On the other hand, it realizes the transfer of the watch case between the first assembly module 13 and the second assembly module 15, forming a continuous process of "first module assembly to second module assembly" or "second module assembly to first module assembly", avoiding process stagnation caused by manual transfer, and further improving the production rhythm of the entire line. In summary, the watch case assembly line 100 provided by the present application can effectively replace manual assembly, significantly improve assembly efficiency to adapt to large-scale mass production needs, and ensure assembly accuracy by reducing human intervention, thereby stagnating product yield.

[0030] See also Figures 1 to 5 In one embodiment, the first assembly module 13 includes: A first dial adjusting device 20 is configured to pick up a watch case on the conveying module 17 and adjust the watch case to a first assembly posture with a first button hole exposed; A first keycap installation device 30 is configured to pick up a first keycap from a key magazine and insert the first keycap equipped with a spring into a first keyhole of the watch case in a first assembly posture in a predetermined posture; a spring loading device 50 , the spring loading device 50 being configured to pick up a spring from a spring magazine and assemble the spring into a mounting hole of a first keycap located in the first keycap mounting device 30 ; and The circlip installation device 40 is configured to pick up the circlips in the circlip material bin 101 and install the circlips to be engaged with the dial and the first keycap.

[0031] It should be noted that the first dial adjustment device 20 can be a multi-axis robotic arm equipped with vision positioning. A pneumatic gripper (with a silicone anti-slip pad and automatically adjustable spacing) at the end of the robotic arm locates the watch case using dual industrial cameras. After grasping, it is rotated and adjusted until the first button hole is exposed. Alternatively, the first dial adjustment can be performed using a pneumatic rotary table equipped with locating pins. Once the watch case arrives at the workstation, a lifting platform lifts the case, which is secured with elastic locating pins. The electric rotary table rotates the case, stopping when a laser sensor detects the first button hole. This system is suitable for large-scale production of standardized round watch cases, offering fast adjustment and low maintenance costs.

[0032] The first keycap installation device 30 can be a combination structure of vacuum adsorption and servo pressing, that is, the suction cup at the end of the servo electric cylinder adsorbs the first keycap, and the pre-installed sleeve below supports the spring. After the electric cylinder drives the keycap to be pre-installed with the spring, it is inserted into the watch case button hole according to the set pressure; or, the first keycap installation device 30 can also be a combination of a pneumatic clamp and a guide sleeve, the finger cylinder clamp clamps the keycap, the guide sleeve is first connected to the spring, and then covers the watch case button hole for positioning, and finally the pneumatic slide pushes the first keycap into the first button hole of the watch case.

[0033] In this embodiment, the first dial adjustment device 20 first picks up the horizontally transported watch case and flips it over to the first assembly posture (with the hole facing upward), so that the first button hole is always facing the assembly direction; then the spring loading device 50 puts the spring into the inner hole of the first keycap picked up by the first keycap installation device 30, realizing the "keycap + spring" pre-installation; then, the first keycap installation device 30 inserts the pre-installed part as a whole into the first button hole of the watch case; finally, the retaining spring installation device 40 pushes the retaining spring into the ring groove of the keycap and the watch case from the side to complete the installation.

[0034] See also Figure 2 and Figure 3 In one embodiment, the watch case located in the conveying module 17 is in a first horizontal transport posture; the first assembly posture is a vertical assembly posture; The first dial adjustment device 20 includes a flipping mechanism 21 and a rotating clamping mechanism 22 provided on the flipping mechanism 21. The flipping mechanism 21 is provided on the base 10 and can switch between a picking posture and an installation posture; the rotating clamping mechanism 22 is configured to pick up the watch case located on the conveying module 17 and drive the watch case to rotate along its circumferential direction; wherein, when the flipping mechanism 21 is in the installation posture, the rotating clamping mechanism 22 can drive the dial to rotate to a vertical assembly posture so that the first button hole is set downward.

[0035] It should be noted that the structure of the turnover mechanism 21 can adopt the structure of "fixed support 24 + rotating shaft 23 + driving assembly", that is, the fixed support 24 is rigidly connected with the base 10 through bolts to ensure stable operation, the rotating shaft 23 is transversely arranged at the top of the fixed support 24, the shaft end is connected with the driving assembly (such as a servo motor + a speed reducer, or a pneumatic motor) to provide power for the turnover, and the middle part of the rotating shaft 23 is fixedly connected with the mounting seat of the rotary clamping mechanism 22 to realize the transmission of the turnover action to the clamping mechanism. At the same time, when the turnover mechanism 21 is in the picking posture, the clamping end of the rotary clamping mechanism 22 is flush with the watchcase transportation surface of the conveying module 17, which is convenient for horizontal picking of the watchcase; when the installation posture, the rotary clamping mechanism 22 is turned over by the rotating shaft 23, so that the clamped watchcase is turned from the horizontal state to the vertical state, and the turnover stroke can be accurately controlled through the limit sensor (such as photoelectric limit, mechanical limit) to avoid over-turning or not turning to the position.

[0036] The rotary clamping mechanism 22 is usually installed on the rotating shaft 23 of the turnover mechanism 21 and is composed of "clamping assembly + rotary driving part". The clamping assembly can adopt pneumatic clamping jaw (equipped with silica gel anti-skid pad to prevent clamping injury to the watchcase), and the opening degree of the clamping jaw can be adjusted according to the size of the watchcase through the stroke of the air cylinder; the rotary driving part (such as a stepping motor) is embedded in the mounting seat of the clamping assembly, the output shaft is connected with the clamping jaw seat of the clamping assembly, and the clamping jaw and the clamped watchcase can be rotated circumferentially. In the working room, first, the clamping jaw is closed to pick the horizontal watchcase on the conveying module 17 in the picking posture; after the turnover mechanism 21 switches to the installation posture, the rotary driving part drives the watchcase to rotate circumferentially, and through visual positioning (such as adding an industrial camera to identify the position of the first keyhole) or mechanical positioning (such as a watchcase edge positioning pin), the first keyhole is accurately downward, and the adjustment of the vertical assembly posture is completed.

[0037] In the embodiment, the conveying module 17 keeps the watchcase in the first horizontal transportation posture; the turnover mechanism 21 turns over the watchcase as a whole by 90° to the vertical assembly posture, and the rotary clamping mechanism 22 drives the watchcase to rotate circumferentially so that the first keyhole is downward; after the key picking mechanism 32 grabs the first keycap from the hopper, the jacking mechanism 31 directly jacks the keycap into the keyhole with the hole downward.

[0038] Please refer to Figure 4 In an embodiment, the first keycap installation device 30 includes a jacking mechanism 31 and a key picking mechanism 32, the key picking mechanism 32 is configured to pick the first keycap from the key hopper, and the jacking mechanism 31 is configured to drive the key picking mechanism 32 to move upward to jack the picked first keycap into the first keyhole of the watchcase on the first watch dial adjusting device 20.

[0039] It should be noted that the key picking mechanism 32 is used to pick the first keycap from the key bin, which can be composed of a multi-degree-of-freedom robot arm and a picking end, for example, a robot arm (such as a three-axis linear module) is fixed to the base 10 through a support, which can move in the horizontal direction (close to the key bin) and the vertical direction (picking height); the picking end can be adapted according to the material of the first keycap, for example, if it is a plastic keycap, a vacuum chuck is used; if it is a metal keycap, a pneumatic clamp jaw (rubber bushing is attached to the inside of the clamp jaw to prevent damage to the plating layer) can be used. At the same time, the picking mechanism can be equipped with a position sensor (such as an optical fiber sensor), when the first keycap in the bin is detected to be in place, the robot arm drives the picking end to move to the picking position, completes the keycap grabbing, and after grabbing, the keycap posture can be ensured to be correct through visual calibration (such as camera recognition of keycap mounting hole position) and placed on the jacking mechanism 31, preparing for subsequent spring assembly and jacking. The driving source of the jacking mechanism 31 can be a servo cylinder or a ball screw module, and has a key bearing seat 33, when jacking is needed, the driving source drives the key bearing seat 33 to move upward along the guide 34, and then the first keycap moves upward, and the keycap is jacked into the first keyhole of the watch case. In addition, the jacking mechanism 31 can be built-in pressure sensor, set the jacking pressure threshold, when the pressure reaches the threshold, the jacking is automatically stopped, to avoid excessive pressure damage to the keycap or watch case, and ensure the jacking depth is consistent.

[0040] In the embodiment, the key picking mechanism 32 horizontally grabs the first keycap from the bin; the jacking mechanism 31 rises in the vertical direction, and the first keycap is jacked into the downward first keyhole from the bottom.

[0041] Please refer to Figure 5 In an embodiment, the first assembly module 13 further includes a snap spring mounting device 40, the snap spring mounting device 40 includes: A snap spring chuck 42, the snap spring chuck 42 is configured to clamp the snap spring; and, A pushing mechanism 41, the pushing mechanism 41 is configured to drive the snap spring chuck 42 to move towards the watch case, so as to assemble the snap spring on the snap spring chuck 42 with the first keycap and the watch case.

[0042] It should be noted that the structural design of the retaining spring chuck 42 must be adapted to the annular or special-shaped structure of the retaining spring. It typically utilizes two symmetrically arranged elastic clamping arms, made of a highly elastic alloy (such as spring steel) or high-hardness engineering plastic. These arms possess both elasticity and wear resistance, allowing for natural deformation and reset during the clamping and releasing process, thereby preventing fatigue failure from long-term use. The inner side of the clamping arm is provided with an arc-shaped groove (adapting to an annular retaining spring) or a special-shaped groove (adapting to a special-shaped retaining spring) that matches the outer shape of the retaining spring. The base of the elastic clamping arm can be integrally formed with the chuck base 10. In their natural state, the two clamping arms are in an inwardly tightened, closed position. When the retaining spring is clamped, an external drive (such as a cylinder drive or electromagnetic drive) acts on the middle of the clamping arm, causing the clamping arm to open outward to capture the retaining spring. After the drive is removed, the clamping arm returns to its original position due to its own elasticity, firmly clamping the retaining spring and preventing it from falling off. At the same time, the circlip chuck 42 can be provided with an adjustment component (such as an adjustment bolt) to adjust the initial closing distance between the two elastic clamping arms to adapt to circlips of different sizes (such as circlips of different inner diameters and thicknesses). The structure of the pushing mechanism 41 can adopt a combination of a linear drive component and a guide structure. The linear drive component can be selected from common forms such as a pneumatic cylinder, an electric slide or a ball screw module. The guide structure is usually a linear guide rail arranged in parallel. The guide rail is fixedly connected to the moving platform of the pushing mechanism 41, and the guide rail slider is connected to the base 10 to ensure that when the pushing mechanism 41 drives the retaining ring chuck 42 to move, it runs along a preset trajectory (such as a horizontal trajectory or a trajectory inclined at a specific angle) to avoid deviation. The installation of the pushing mechanism 41 needs to be coordinated with the first dial adjustment device 20 and the first keycap installation device 30. Its moving direction needs to be aligned with the clamping position of the case in the vertical assembly posture to ensure that the retaining ring chuck 42 can accurately push the retaining ring to the assembly position.

[0043] In this embodiment, the clamping direction of the two elastic clamping arms of the circlip chuck 42 and the movement direction of the push mechanism 41 must be compatible with the vertical position of the watch case. Typically, a horizontal or slightly downwardly tilted push is used, avoiding other structures of the watch case and the first keycap and directly aligning them with the clamping ring grooves of both. The travel of the push mechanism 41 must be set according to the distance between the watch case and the circlip hopper 101 to ensure that the circlip can be accurately pushed from the hopper to the assembly position. Furthermore, the operation timing of the circlip installation device 40 must be linked to the first keycap installation device 30. Specifically, only after the first keycap installation device 30 completes the top installation of the keycap and confirms that it is in place does the control system trigger the activation of the circlip installation device 40 to ensure the complete assembly of the first key assembly (keycap, spring, circlip). Based on this collaborative logic, those skilled in the art can design the control system's timing parameters and select appropriate sensors and drive components to ensure seamless coordination between the circlip installation device 40 and the other devices in the first assembly module 13, thereby achieving automation and precision in the overall assembly process.

[0044] See also Figure 6 and Figure 7In one embodiment, the first assembly module 13 further includes a spring loading device 50, and the spring loading device 50 includes: A vibration platform 51, wherein the vibration platform 51 is provided with at least one limiting hole, in which the spring can be limited and maintain a vertical posture during the vibration process; and The feeding mechanism 60 includes a manipulator, a fixed sleeve 61, and a pick-up needle 62. The manipulator is provided on the base 10. The fixed sleeve 61 is provided at the gripping end of the manipulator. The pick-up needle 62 is retractably inserted into the sleeve. The pick-up needle 62 is configured to pick up the spring located in the limiting hole. Among them, the loading mechanism 60 has a material picking state and a material returning state. In the material picking state, the material picking needle 62 has an interference fit with the spring in the vertical posture; in the material returning state, the material picking needle 62 retracts into the fixed sleeve 61 so that the spring can fall into the mounting hole of the first keycap under the abutment of the fixed sleeve 61.

[0045] It should be noted that the vibration platform 51 consists of a "vibration base + carrier plate + vibration driver." The vibration base is fixed to the base 10 via shock-absorbing pads to prevent vibration transmission from affecting other devices. The carrier plate is mounted horizontally above the vibration base and has at least one stop hole defined in the plate. The hole's diameter must match the spring's outer diameter (slightly larger to ensure it fits smoothly and without shaking). The hole's depth should be slightly less than the spring's length, exposing the top of the spring for easy removal. The inner wall of the hole is smoothed to reduce friction between the spring and the hole wall, preventing it from sticking. A vibration driver (such as an electromagnetic vibrator or eccentric motor) is built into the vibration base, and the carrier plate's vibration intensity can be controlled by adjusting the vibration frequency and amplitude.

[0046] The manipulator, as a mobile carrier, uses a multi-axis linear module or an articulated manipulator arm, which is fixed to the base 10 via a bracket. It can move horizontally (between the vibration platform 51 and the first keycap mounting device 30) and vertically (to adjust the height of picking and unloading). The movement accuracy is controlled by a servo motor to ensure accurate alignment between the limit hole and the first keycap mounting hole. The fixed sleeve 61 is fixed to the gripping end of the manipulator and has a hollow cylindrical structure. The inner diameter of the sleeve is adapted to the outer diameter of the picking needle 62 (to ensure that the picking needle 62 can be smoothly extended and retracted). The bottom of the sleeve is a flat end surface, which is used to abut the top of the spring when withdrawing the material. The axis of the sleeve must be coaxial with the moving axis of the manipulator, and during installation, it must be ensured that the relative position of the bottom of the sleeve and the bottom of the picking needle 62 is fixed. The picking needle 62 is telescopically inserted into the fixed sleeve 61 and consists of a "needle body + telescopic drive component" - the needle body is made of high-strength metal, the needle tip is polished smoothly, and the needle body diameter needs to match the inner diameter of the spring (interference fit with the spring in the picking state, and the spring is firmly picked up by friction), the telescopic drive component (such as a micro cylinder or electromagnetic push rod) is installed on the top of the fixed sleeve 61, and the output end is connected to the top of the picking needle 62, which can drive the picking needle 62 to extend and retract up and down along the axis of the sleeve (the telescopic stroke is slightly greater than the spring length to meet the picking and withdrawing needs).

[0047] In this embodiment, when loading springs, a batch of springs is first poured into the loading plate of the vibration platform 51. The vibration drive is activated, causing the loading plate to vibrate. Under the action of the vibration, the springs automatically fall into the limiting holes and maintain a vertical posture, completing the positioning. If the limiting holes are full, the excess springs will be pushed to the edge of the loading plate during the vibration, awaiting subsequent positioning. The manipulator drives the fixed sleeve 61 and the pick-up needle 62 to move above the vibration platform 51, adjusting the height so that the pick-up needle 62 is aligned with the vertical spring. The telescopic drive drives the pick-up needle 62 downward, and the needle tip inserts into the inner hole of the spring. Due to the interference fit between the pick-up needle 62 and the spring, the spring is firmly clamped on the pick-up needle 62. The manipulator then drives the pick-up needle 62 and the spring away from the vibration platform 51 and moves them above the keycap of the first keycap mounting device 30 (at this time, the first keycap has been picked up by the key pickup mechanism 32 and is maintained in a horizontal posture, with the mounting hole facing upward). When assembling the spring, the manipulator adjusts the height so that the bottom of the picking needle 62 is aligned with the mounting hole of the first keycap; the telescopic drive member drives the picking needle 62 to retract upward, and the picking needle 62 drives the spring to move toward the inside of the fixed sleeve 61. When the top of the spring contacts the bottom end face of the fixed sleeve 61, the sleeve will produce a downward abutting force on the spring; as the picking needle 62 continues to retract, the spring is separated from the picking needle 62 under the action of the abutting force, and falls from the bottom of the picking needle 62 into the mounting hole of the first keycap, completing the spring assembly; finally, the manipulator drives the fixed sleeve 61 and the picking needle 62 to reset, ready for the next material collection.

[0048] It is not difficult to see that the vibration platform 51 causes the spring to automatically fall into the limiting hole through vibration. The aperture and depth constraints of the limiting hole ensure that the spring maintains a vertical posture, avoiding posture deviation of the spring when placed manually; and the action timing of the loading mechanism 60 can be linked with the first keycap installation device 30 (such as after the first keycap is in place, the loading mechanism 60 immediately starts loading), forming a coherent process of "keycap picking → spring loading → keycap pre-installation". Compared with manual loading, the overall assembly cycle is greatly shortened, which greatly improves the automation level and production efficiency of the first assembly module 13.

[0049] See also Figure 8 and Figure 9 In one embodiment, the second assembly module 15 includes: A second dial adjusting device, the second dial adjusting device is configured to pick up the watch case on the conveying module 17 and adjust the watch case to a second assembly posture with the second button hole exposed; The barometric tube installation device 70 is configured to pick up a barometric tube from a barometric tube silo and insert the barometric tube into a second button hole on the upper housing of the second dial adjustment device in a predetermined posture; A second keycap installation device is configured to pick up the second keycap in the key magazine and insert the second keycap into the second key hole of the watch case in the second assembly posture in a predetermined posture; and The nut installation device is configured to pick up the nuts in the nut hopper and drive the nuts to be fastened to the second keycap in a predetermined posture.

[0050] It should be noted that the specific implementation of the second dial adjustment device can refer to the above-mentioned first dial adjustment device 20.

[0051] The bar tube installation device 70 is composed of a material picking component (such as a vacuum suction cup / mechanical clamp, adapted to the slender structure of the bar tube) and a positioning and pushing component (such as a linear slide, installed on the base 10). It can pick up the bar tube from the bar tube hopper and drive the slide to insert the bar tube into the second button hole of the watch case in a predetermined posture (such as the axis is coaxial with the second button hole) to ensure consistent insertion depth.

[0052] The second keycap installation device typically includes a keycap pickup component (e.g., a gripper / suction cup adapted to the second keycap's shape) and a lifting actuator (e.g., a servo cylinder, secured to base 10). This device picks up the second keycap from the keypad magazine and inserts it into the second keyhole, already fitted with a throttle, in a predetermined position (e.g., with the snap aligning with the case's slot), achieving initial positioning. For its specific structure, refer to the description of the first keycap installation device 30 above.

[0053] The nut installation device usually includes a keycap picking component (such as a clamp / suction cup adapted to the shape of the second keycap) and a lifting drive component (such as a servo cylinder, fixed to the base 10); it can pick up the second keycap from the key magazine, drive the keycap to be inserted into the second key hole with the bar tube installed in a predetermined posture (such as aligning the buckle with the case slot), and realize the initial positioning of the keycap.

[0054] The bar tube installation device 70 mainly includes a bar tube picking component, a posture calibration component and a positioning and movement component. The bar tube picking component can use a pneumatic clamp (the clamp opening can be adjusted according to the outer diameter of the bar tube, and the silicone pad increases friction and prevents scratches) or a vacuum suction nozzle 71 adapted to the inner diameter of the bar tube (using negative pressure to suck the inner wall of the bar tube to avoid pinching the outer wall); the posture calibration component is used to adjust the picked up bar tube to a "predetermined posture" (that is, the axis of the bar tube is coaxial with the axis of the second button hole of the watch case to ensure no offset during insertion). It is usually composed of a "visual positioning module + rotary drive component". The visual positioning module (such as an industrial camera + image recognition algorithm) is installed next to the picking component and can identify the features at both ends of the bar tube (such as the chamfer and positioning hole at the end of the bar tube) to determine the deviation between the current posture and the predetermined posture; the rotary drive component (such as a micro servo motor) is linked with the picking component to drive the bar tube to rotate around its own axis and adjust the angle according to the visual positioning results until the bar tube posture meets the predetermined requirements. The positioning moving component serves as the "mobile carrier" of the device, and is used to drive the picking component and the calibrated bar tube to move accurately to the second button hole of the case and complete the insertion. The structure adopts a "multi-axis linear slide" (such as the XY axis slide controls the horizontal movement, and the Z axis slide controls the vertical insertion depth), and the slide drive uses a servo motor; the slide is fixedly connected to the base 10, and the moving path is preset to "material position from the bar tube silo → posture calibration position → insertion position of the second button hole of the case", and no manual intervention is required throughout the process.

[0055] In this embodiment, the second dial adjustment device picks up the watch case from the conveyor module 17 and flips it to the second assembly position, exposing the second keyhole and aligning it with the bar tube installation device 70. The bar tube installation device 70 then picks up a bar tube from the hopper and inserts it into the second keyhole of the watch case in a predetermined position. Next, the second keycap installation device picks up the second keycap and inserts it into the second keyhole, already fitted with the bar tube, completing the initial assembly. Finally, the nut installation device picks up a nut, aligns it with the second keycap's threaded hole, and tightens the nut to the keycap to the set torque. Once assembly is complete, the watch case is transferred from the conveyor module 17 to the next stage.

[0056] It should be noted that the nut can be a hexagonal nut. Since the nut needs to be locked with the second keycap, at least one of the pick-up members of the nut mounting device and the second keycap mounting device has a rotation function.

[0057] In an embodiment, the second assembly module 15 further comprises a screw locking device configured to pick up the screw in the screw magazine and lock the screw between the bar tube and the watch case to fix the bar tube on the watch case.

[0058] It should be noted that the screw locking device generally comprises a screw picking component (such as a magnetic bit / adsorption jaw, adapted to the shape of the screw head to prevent the picked screw from falling), a positioning and moving component (such as a multi-axis robot arm installed on the base 10), and a locking driving component (such as a servo motor with torque control function); the screw can be picked up from the screw magazine, the screw is driven by the positioning and moving component to align with the connecting hole of the bar tube and the watch case (the sidewall of the bar tube is provided with a threaded hole or a through hole at the corresponding position of the watch case), and then the bit is driven to rotate by the locking driving component to lock the screw between the bar tube and the watch case at a set torque, thereby fixing the bar tube.

[0059] In the present embodiment, the screw locking device picks up the screw, positions and moves to the connecting hole of the bar tube and the watch case, and fixes the bar tube on the watch case to prevent displacement of the bar tube during subsequent assembly.

[0060] In an embodiment, the second assembly module 15 further comprises a welding device configured to weld the screw and the bar tube; and / or, the welding device is configured to weld the nut and the second key cap.

[0061] It should be noted that the welding device generally comprises a welding head (such as a laser welding head / resistance welding head, adapted to welding of micro components to avoid high temperature damage to the watch case), a positioning and adjusting component (such as a three-axis fine adjustment sliding table installed on the base 10), and a temperature / power control module. When welding the screw and the bar tube, the welding head is aligned with the connecting gap between the screw and the bar tube by the positioning and adjusting component, and the two are welded at a set temperature to strengthen the fixation; when the nut and the second key cap are welded, the welding head is aligned with the contact edge of the nut and the key cap by the positioning and adjusting component, and the two are welded by low-power welding (to avoid melting deformation) to prevent loosening of the nut; during the welding process, the control module monitors the temperature in real time to avoid overheating damage to the surrounding components.

[0062] In this way, through the automatic process of "posture adjustment → bar tube insertion → screw fixation + welding → key cap installation → nut locking + welding", the efficiency of mechanical fixation is retained, and "double reinforcement" is achieved through welding. The welding parameters are controllable, which can avoid quality fluctuations of manual welding and fully adapt to the high-precision and high-reliability watch mass production requirements.

[0063] Please refer to Figure 9 In an embodiment, the watch case at the conveying module 17 is in a first horizontal transportation posture; and the second assembly posture is a vertical assembly posture. The second dial adjustment device includes a rotating clamping mechanism 22, which includes a turntable 25 and a clamping claw structure provided on the turntable 25. The clamping claw structure is configured to grasp the watch case. The turntable 25 is configured to drive the clamping claw structure to rotate along the axial direction of the dial so that the dial is in a vertical assembly position with the second button hole facing upward. A guide groove 26 for accommodating a nut is formed on one side of the dial where the clamping claw is provided. The nut installation device includes a nut loading mechanism and a pushing mechanism 80. The nut loading mechanism is configured to pick up the nuts in the nut hopper to the guide groove 26; the pushing mechanism 80 is arranged in the guide groove 26. In the second assembly posture, the guide groove 26 is arranged corresponding to the second key hole; it is configured to push the nut along the guide groove 26 until it is assembled with the second keycap inserted in the second key hole.

[0064] It should be noted that the shape of the guide groove 26 matches the outer shape of the nut (compatible with the hexagonal nut), that is, the inner wall is a hexagonal structure that fits the outer contour of the hexagonal nut (or slightly larger than the nut shape, to ensure that the nut can slide smoothly and not shake), the groove depth is slightly larger than the nut thickness (so that the nut is completely embedded in the groove to avoid falling off during sliding), and the groove length needs to cover the distance from the "nut placement position" to the "assembly position with the second keycap" (to ensure that the nut can be pushed to the assembly point by the pushing mechanism 80), to ensure that the nut can be accurately docked with the keycap after being pushed out of the groove.

[0065] The push mechanism 80 includes a driver, a push rod, and a stopper assembly. The driver can be a micro-cylinder, electric push rod, or linear motor. One end of the push rod is fixed to the output end of the driver, and the other end can be inserted into the guide slot 26. The stopper assembly is installed at the end of the guide slot 26 or along the push rod's travel path to control the push rod's pushing distance, preventing over- or under-pushing. The design must ensure that the push rod can smoothly enter the slot to push the nut without interfering with the jaw structure, the watch case, and other components.

[0066] In the present application, the guide groove 26 serves as a temporary accommodation space for the nut. After the nut feeding mechanism picks up the nut, it can be directly placed into the groove. The constraint of the groove body can prevent the nut from shifting or falling before assembly, replacing manual hand-held positioning and realizing the automation of nut pre-positioning. When the pushing mechanism 80 pushes the nut, the guide groove 26 provides a fixed sliding path for the nut, preventing the nut from skewing during the pushing process (especially for hexagonal nuts, to prevent them from shifting due to uneven force on the corners), ensuring that the nut moves accurately along the preset direction to dock with the second keycap, solving the problem of uncontrollable path of manually pushing the nut. In addition, because the guide groove 26 rotates synchronously with the turntable 25 (because it is opened on the turntable 25), when the turntable 25 drives the watch case to rotate to a vertical assembly posture, the guide groove 26 also adjusts to a position that adapts to the second keycap. There is no need to adjust the direction of the groove body, realizing the synchronous connection of "watch case posture adjustment-nut path guidance", simplifying the device structure.

[0067] In one embodiment of the present invention, see Figure 1 The watch case assembly line 100 further includes an oiling module 14, which is located between the first assembly module 13 and the second assembly module 15 along the flow direction of the conveying module 17; The oiling module 14 is configured to apply a protective layer to the first button and the retaining spring, and the conveying module 17 is also configured to convey the watch case between the first assembly module 13 and the oiling module 14, or to convey the watch case between the second assembly module 15 and the oiling module 14.

[0068] In this embodiment, the oiling module 14 is located between the first assembly module 13 and the second assembly module 15 along the flow direction of the conveying module 17. The flow direction of the conveying module 17 refers to the flow path of the watch case between the modules from loading to unloading. When the first assembly module 13 is located upstream of the second assembly module 15, the conveying module 17 is configured to convey the watch case from the first assembly module 13 to the oiling module 14 and then into the second assembly module 15. When the second assembly module 15 is located upstream of the first assembly module 13, the conveying module 17 is configured to convey the watch case from the second assembly module 15 to the oiling module 14 and then into the first assembly module 13. Taking the first assembly module 13 being located upstream of the second assembly module 15 as an example, the watch case that has completed the assembly of the first button enters the oiling module 14 under the action of the conveying module 17, and the protective layer coating of the first button and the retaining spring is completed in the oiling module 14.

[0069] The oiling module 14 is an automated device used to form a protective structure on the surface of the keypad. This can be achieved using a spraying device or dispensing device with a quantitative feeding system. The spraying trajectory and coating thickness are controlled to ensure uniform coverage of the protective layer. The protective layer is a covering material with anti-oxidation or lubricating properties. This can be achieved using silicon-based compounds or fluorine-based coating materials to reduce friction loss between the keypad and the mounting hole. The flow direction of the conveying module 17 refers to the movement path of the case between assembly steps. This can be achieved using a conveyor belt or a robotic gripping mechanism. The process connection is achieved by setting the station spacing and movement timing.

[0070] Specifically, after the watch case is assembled with the first button and retaining spring in the first assembly module 13, the conveying module 17 transfers the case to the oiling module 14. The spraying device in the oiling module 14 applies targeted spray coating to the exposed surface of the first button and the contact surface of the retaining spring, forming an anti-corrosion coating of controllable thickness. The watch case is then conveyed to the second assembly module 15 for assembly of the square button, or returned to the first assembly module 13 for additional components, depending on the process sequence. In this process, the oiling process is integrated into the assembly process, eliminating the need for a separate offline oiling station.

[0071] In one embodiment of the present invention, see Figure 1 The watch case assembly line 100 further includes an information label attaching module 12 , which is located upstream of the first assembly module 13 or the second assembly module 15 along the flow direction of the conveying module 17 ; The conveying module 17 is configured to convey the watch case from the information label attaching module 12 to the first assembly module 13 or the second assembly module 15; The information label attaching module 12 is provided with an attaching structure and a case-turning robot. The case-turning robot is configured to flip the watch case so that the watch case switches from a first flat posture to a second flat posture. In the second flat posture, the attaching structure is used to attach the information label to the watch case.

[0072] In this embodiment, the information identifier can point to the QR code, barcode, specific number, etc. of the attached watch case. Specifically, the attachment structure can be a vacuum adsorption device including an integrated vacuum pump, a suction nozzle, etc., or an electrostatic adsorption device, which is not limited here; the case-turning robot refers to an automated flipping device with a multi-degree-of-freedom clamping function, which can be specifically implemented by a rotating clamping mechanism driven by a servo motor to switch the watch case from a first flat posture to a second flat posture, and adapt the film-sticking process by adjusting the spatial posture of the watch case.

[0073] Specifically, when the watch case enters the film-applying module, the case-turning robot grips the edge of the case and flips it around a horizontal axis, shifting the case from a first flat position to a second flat position. The visual positioning system identifies the film-applying area of ​​the case, and the free end of the film-applying mechanism, bearing the information label, moves toward the film-applying area, attaching the information label. The case, once attached, is then transferred via conveyor module 17 to first assembly module 13 or second assembly module 15 for assembly of different types of buttons and the watch case.

[0074] The present invention also proposes a wristband device assembly bus, which includes all the case assembly lines 100 as described above. Specifically, the wristband device assembly bus includes the case assembly line 100, the display assembly line, the dial assembly line, etc. By using an automated wristband device assembly bus, efficient and precise assembly is performed. The specific structure of the case assembly line 100 refers to the above embodiment. Since the wristband device assembly bus proposed in the present invention adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0075] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's description and drawings, or direct / indirect applications in other related technical fields, within the scope of the present invention are included in the patent protection scope of the present invention.

Claims

1. A watch case assembly line, used to install a first button assembly and a second button assembly into a first button hole and a second button hole of a watch case, respectively. The first button assembly includes at least a first keycap, a spring, and a retaining spring, and the second button assembly includes at least a second keycap, a tubing, and a nut. The watch case assembly line comprises: base; a first assembly module, disposed on the base, configured to assemble the first keycap of the first button assembly, the spring, and the retaining spring to the watch case; a second assembly module, disposed on the base, configured to assemble the tubing, the nut, and the second keycap to the watch case; and A conveying module is provided on the base, and is configured to convey the watch case between the first assembly module and the second assembly module.

2. The watch case assembly line according to claim 1, wherein: The first assembly module includes: a first dial adjusting device configured to pick up the watch case on the conveying module and adjust the watch case to a first assembly posture with the first button hole exposed; a first keycap installation device, configured to pick up the first keycap from a key magazine and insert the first keycap equipped with the spring into the first key hole of the watch case in the first assembly posture in a predetermined posture; a spring loading device, the spring loading device being configured to pick up the spring in the spring magazine and assemble the spring into the mounting hole of the first keycap located in the first keycap mounting device; and A circlip installation device is configured to pick up the circlip in the circlip material bin and install the circlip to engage with the dial and the first keycap.

3. The watch case assembly line according to claim 2, wherein: The watch case located in the conveying module is in a first horizontal transport posture; the first assembly posture is a vertical assembly posture; The first dial adjustment device includes a flip mechanism and a rotary clamping mechanism provided on the flip mechanism, wherein the flip mechanism is provided on the base and can switch between a picking posture and an installation posture; the rotary clamping mechanism is configured to pick up the watch case located on the conveying module and drive the watch case to rotate along its circumferential direction; wherein, when the flip mechanism is in the installation posture, the rotary clamping mechanism can drive the dial to rotate to the vertical assembly posture so that the first button hole is arranged downward; and / or, The first keycap installation device includes a lifting mechanism and a key picking mechanism. The key picking mechanism is configured to pick up the first keycap from the key hopper. The lifting mechanism is configured to drive the key picking mechanism to move upward to push the picked up first keycap into the first key hole of the watch case located on the first dial adjustment device.

4. The watch case assembly line according to claim 2, wherein: The first assembly module further includes a retaining spring installation device, and the retaining spring installation device includes: a circlip collet configured to clamp the circlip; and, A pushing mechanism is configured to drive the circlip collet to move toward the watch case, so as to assemble the circlip on the circlip collet with the first keycap and the watch case.

5. The watch case assembly line according to claim 2, wherein: The first assembly module further includes a spring loading device, which includes: A vibration platform, wherein the vibration platform is provided with at least one limiting hole, wherein the spring can be limited in the limiting hole and maintain a vertical posture during the vibration process; and A feeding mechanism, comprising a manipulator, a fixed sleeve, and a picking needle, wherein the manipulator is disposed on the base, the fixed sleeve is disposed on the gripping end of the manipulator, and the picking needle is retractably inserted into the sleeve, and the picking needle is configured to pick up the spring located in the limiting hole; In which, the loading mechanism has a picking state and a returning state. In the picking state, the picking needle has an interference fit with the spring in a vertical posture; in the returning state, the picking needle retracts into the fixed sleeve so that the spring can fall into the mounting hole of the first keycap under the abutment of the fixed sleeve.

6. The watch case assembly line according to claim 1, wherein: The second assembly module includes: a second dial adjusting device, the second dial adjusting device being configured to pick up the watch case on the conveying module and adjust the watch case to a second assembly posture with the second button hole exposed; a barometric tube installation device, the barometric tube installation device being configured to pick up the barometric tube from the barometric tube silo and insert the barometric tube into the second button hole of the watch case on the second dial adjustment device in a predetermined posture; A second keycap installation device, wherein the second keycap installation device is configured to pick up the second keycap from the key magazine and insert the second keycap into the second key hole of the watch case in the second assembly posture in a predetermined posture; and A nut installation device is configured to pick up the nut in the nut bin and drive the nut to be fastened to the second keycap in a predetermined posture.

7. The watch case assembly line according to claim 6, wherein: The second assembly module also includes a screw locking device, which is configured to pick up screws in a screw hopper and lock the screws between the bar tube and the watch case to fix the bar tube to the watch case.

8. The watch case assembly line according to claim 7, wherein: The second assembly module further includes a welding device, which is configured to weld the screw to the bar tube; and / or, the welding device is configured to weld the nut to the second keycap.

9. The watch case assembly line according to claim 6, wherein: The watch case located in the conveying module is in a first horizontal transport posture; the second assembly posture is a vertical assembly posture; The second dial adjustment device includes a rotary clamping mechanism, the rotary clamping mechanism including a turntable and a clamping claw structure provided on the turntable, the clamping claw structure being configured to grasp the watch case, and the turntable being configured to drive the clamping claw structure to rotate along the axial direction of the dial so that the dial is in the vertical assembly posture with the second button hole facing upward; a guide groove for accommodating the nut is formed on one side of the dial where the clamping claw is provided; The nut installation device includes a nut loading mechanism and a pushing mechanism, the nut loading mechanism is configured to pick up the nut in the nut hopper to the guide groove; in the second assembly posture, the guide groove is arranged corresponding to the second key hole; the pushing mechanism is arranged in the guide groove and is configured to push the nut to move along the guide groove until it is assembled with the second keycap inserted in the second key hole.

10. A wristband device assembly bus, characterized in that: The wristband device assembly bus comprises a watch case assembly line according to any one of claims 1 to 9.

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