Watchcase assembly line body and wristband equipment assembly bus

Abstract

The invention relates to the technical field of intelligent wearing equipment, in particular to a watchcase assembly line body and a wrist strap equipment assembly bus, the watchcase assembly line body comprises a base, at least one first assembly module and at least one second assembly module, the at least one first assembly module is arranged on the base, and the at least one second assembly module is arranged on the base; the first assembly module is configured to assemble a first key cap and a snap spring of the first key assembly into a key mounting hole of the watchcase; the at least one second assembly module is arranged on the base, and the second assembly module is configured to assemble the key bracket, the fastener and the second key cap into another key mounting hole of the watchcase; the conveying module is arranged on the base, and the conveying module is configured to convey the watchcase to flow between the at least one first assembling module and the at least one 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 application relates to the technical field of intelligent wearable device processing, in particular to a watch case assembly line body and a wristband device assembly bus. BACKGROUND

[0002] As a mainstream wearable smart device, the basic structure of a smart watch usually includes a watch case and a button, wherein the button is integrated on the side of the watch case and is a core component for realizing human-computer interaction. Users can trigger the corresponding function response of the device through different operation modes such as twisting and pressing.

[0003] Specifically, the button of the smart watch is often designed with differentiated structures to distinguish functions: one is a first button with a whole circular shape, and the other is a second button with a whole square shape. The functions of the two buttons are clear: when the first button is twisted, the fine adjustment of device parameters can be realized, such as adjusting the volume level, the screen display brightness, the alarm setting time, or adjusting the target speed and the target movement distance in the movement mode; when the second button is pressed, the directional selection and module switching operation can be completed, such as switching options in the menu list, the contact interface or the input interface, such as selecting a specific contact, adjusting the alarm time parameter, and switching between different function modules such as the time display module, the movement monitoring module, and the heart rate monitoring module. Through the differentiated operation of the two types of buttons, users can efficiently complete the interaction with the smart watch and realize diversified function calling. However, in the current related technology, the assembly of the watch case and the button of the smart watch is still mainly operated by humans. Compared with the automatic assembly process, manual assembly not only has the problems of low assembly efficiency and difficulty in adapting to large-scale production needs, but also is prone to product yield fluctuations due to human operation errors, which cannot meet the high requirements of the smart device manufacturing industry on production efficiency and product quality stability, and becomes a key bottleneck restricting the improvement of production capacity and quality. SUMMARY

[0004] The main purpose of the present application is to provide a watch case assembly line body, which aims to solve the problems of low manual efficiency and yield fluctuation in the assembly of the watch case and the button.

[0005] To achieve the above-mentioned purpose, the present application provides a watch case assembly line body for installing at least one first button assembly and at least one second button assembly to a watch case respectively, wherein the first button assembly at least includes a first key cap and a snap spring, the second button assembly at least includes a second key cap, a button support and a fastener, and the watch case is provided with at least two button mounting holes; the watch case assembly line body comprises: a base; at least one first assembly module disposed on the base, the first assembly module configured to assemble the first keycap and the spring to one of the key mounting holes of the watch case; at least one second assembly module disposed on the base, the second assembly module configured to assemble the key support, the fastener and the second keycap to another of the key mounting holes of the watch case; and a conveying module disposed on the base, the conveying module configured to convey the watch case between the at least one first assembly module and the at least one second assembly module.

[0006] In an embodiment, the first assembly module comprises: a dial adjusting device configured to pick up the watch case on the conveying module and adjust the watch case to an assembly posture with at least one key mounting hole exposed; a keycap mounting device configured to pick up the first keycap in a keycap magazine and insert the first keycap into the key mounting hole of the watch case in the assembly posture; a spring mounting device configured to pick up the spring in a spring magazine and mount the spring to the dial and the keycap.

[0007] In an embodiment, the watch case on the conveying module is in a horizontal transportation posture; the assembly posture is a vertical assembly posture; the dial adjusting device comprises a first overturning mechanism and a first rotating clamping mechanism disposed on the first overturning mechanism, the first overturning mechanism is disposed on the base and switchable between a picking posture and a mounting posture; the first rotating clamping mechanism is configured to pick up the watch case on the conveying module and rotate the watch case along its circumference; wherein, when the first overturning mechanism is in the picking posture, the first overturning mechanism can pick up the watch case on the conveying module; when the first overturning mechanism is in the mounting posture, the first rotating clamping mechanism can rotate the dial to the vertical assembly posture; and / or the keycap mounting device comprises a pushing mechanism and a key picking mechanism, the key picking mechanism is configured to pick up the first keycap from the keycap magazine, the pushing mechanism is configured to drive the key picking mechanism to move to press the picked first keycap into the corresponding key mounting hole of the watch case on the dial adjusting device.

[0008] In an embodiment, the spring mounting device comprises: a spring collet configured to clamp the spring; and a pushing mechanism configured to drive the spring collet to move towards the watch case to assemble the spring on the spring collet with the first key cap and the watch case.

[0009] In an embodiment, the first key cap comprises a cap body and two springs arranged on the cap body; the first assembly module further comprises a spring feeding device, the spring feeding device comprising: a vibrating platform, at least one limiting hole is arranged on the vibrating platform, and the spring can be limited in the limiting hole and kept in a vertical posture during the vibration process; and a feeding mechanism, the feeding mechanism comprising a manipulator, a fixed sleeve and a material taking needle, the manipulator is arranged on the base, the fixed sleeve is arranged on the grabbing end of the manipulator, and the material taking needle is telescopically inserted into the sleeve, the material taking needle is configured to pick up the spring in the limiting hole; wherein the feeding mechanism has a material taking state and a material returning state, in the material taking state, the material taking needle is in interference fit with the spring in the vertical posture; in the material returning state, the material taking needle is retracted in the fixed sleeve, so that the spring can fall into the mounting hole of the cap body in the horizontal posture under the abutment of the fixed sleeve.

[0010] In an embodiment, the second assembly module comprises: a dial adjusting device configured to pick up the watch case on the conveying module and adjust the watch case to an assembly posture with at least one key mounting hole exposed; a key cap mounting device configured to pick up the second key cap in a key cap warehouse and insert the second key cap into the key mounting hole of the watch case in the assembly posture in a predetermined posture; a bracket mounting device configured to pick up the key bracket in a bracket warehouse and mount the key bracket to the watch case on the dial adjusting device in a predetermined posture; and a fastener mounting device configured to pick up the fastener in a fastener warehouse and drive the fastener to fasten the second key cap and / or the key bracket in a predetermined posture.

[0011] In an embodiment, the watch case on the conveying module is in a horizontal transportation posture; the assembly posture is a vertical assembly posture; The watch dial adjusting device comprises a first turnover mechanism and a rotating clamping mechanism, the first turnover mechanism is arranged on the base, and the first turnover mechanism can switch the rotating clamping mechanism between a picking posture and an installation posture; the rotating clamping mechanism comprises a rotating disc arranged on the first turnover mechanism and a clamping jaw structure arranged on the rotating disc, and the clamping jaw structure is configured to grab the watch case; the rotating disc is configured to drive the clamping jaw structure to rotate along the circumference of the watch dial, so that the watch dial is located in the vertical assembly posture and the key hole is arranged upward. When the first turnover mechanism is in the picking posture, the first turnover mechanism can pick up the watch case located on the conveying module; when the first turnover mechanism is in the installation posture, the rotating clamping mechanism can drive the watch dial to rotate to the vertical assembly posture, so that the key hole is arranged upward.

[0012] In an embodiment, the key support is a bar pipe, and the fastener is a nut; one side of the watch dial, on which the clamping jaw structure is arranged, is provided with a guide groove for accommodating the nut; The fastener installation device comprises a nut feeding mechanism and a pushing mechanism, the nut feeding mechanism is configured to pick up the nut in the fastener warehouse to the guide groove; and the pushing mechanism is arranged in the guide groove and is configured to push the nut upward along the guide groove to be assembled with the second key cap inserted in the key hole.

[0013] In an embodiment, the key support is arranged on the outer periphery of the watch case at the key installation hole, and the fastener is a screw; The fastener installation device comprises a screw installation device, the screw installation device comprises a second turnover mechanism, a watch case fixing tool and a screw feeding mechanism; the second turnover mechanism is configured to receive the watch case and convey the watch case to the watch case fixing tool, the watch case fixing tool is configured to switch the watch case to a screw feeding posture, and the screw feeding mechanism is configured to assemble the screw to the watch case in the feeding posture, so that the key support is assembled with the second key cap.

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

[0015] In the present application, the watch case assembly line body can solve the problems of low efficiency and fluctuation of good product rate in manual assembly of the smart watch case and the button by adopting the combination of at least one first assembly module, at least one second assembly module and a conveying module. Specifically, the first assembly module can sequentially assemble the first key cap and the circlip into the button mounting hole of the watch case to complete the installation of the first button assembly; the second assembly module can assemble the button support, the fastener and the second key cap into the button mounting hole of the watch case 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, avoiding human errors such as uneven force and positioning deviation in manual operation, reducing the generation of defective products caused by insufficient assembly precision, and improving the fluctuation problem of good product rate. In addition, the conveying module replaces manual operation to complete the transfer of the watch case between two modules, on the one hand, eliminating the additional quality risks such as watch case bumping and positioning deviation in the process of manual transfer of the watch case, and on the other hand, realizing the transfer of the watch case between the at least one first assembly module and the at least one second assembly module, forming a continuous process of chain type assembly or cross type assembly, avoiding process stagnation caused by manual transfer, and further improving the production rhythm of the whole line body. In summary, the watch case assembly line body provided by the present application can effectively replace manual assembly, not only significantly improving the assembly efficiency to adapt to large-scale production demand, but also ensuring the assembly precision by reducing human intervention and stabilizing the product good product rate. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the present 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 present application is shown in the figure. Figure 2 The structure schematic diagram of an embodiment of the watch dial adjusting device provided by the present application in the first state is shown in the figure. Figure 3 The structure schematic diagram of an embodiment of the watch dial adjusting device provided by the present application in the second state is shown in the figure. Figure 4 The structure schematic diagram of an embodiment of the key cap mounting device provided by the present application is shown in the figure. Figure 5 The structure schematic diagram of an embodiment of the circlip pushing mechanism provided by the present application is shown in the figure. Figure 6 The structure schematic diagram of an embodiment of the material taking needle mechanism provided by the present application is shown in the figure. Figure 7Mechanism layout of an embodiment of the spring vibration mechanism provided by the present application; Figure 8 Structure diagram of an embodiment of the bar tube mounting device provided by the present application; Figure 9 Structure diagram of an embodiment of the turntable provided by the present application; Figure 10 Structure diagram of an embodiment of the screw mounting device provided by the present application; Figure 11 Structure diagram of an embodiment of the second turnover mechanism provided by the present application; Figure 12 Structure diagram of an embodiment of the screw feeding mechanism provided by the present application; Figure 13 Module layout diagram of an embodiment of the watch case assembly line body provided by the present application.

[0018] Explanation of reference numerals: 1000, watch case assembly line body; 10, base; 11, first assembly module; 111, dial adjusting device; 1111, first turnover mechanism; 1112, first rotary clamping mechanism; 1113, first rotating shaft; 1114, fixed support; 1115, turntable; 1116, guide groove; 112, key cap mounting device; 1121, pushing mechanism; 1122, key picking mechanism; 1123, key bearing seat; 1124, guide piece; 113, clamp spring mounting device; 1131, pushing mechanism; 1132, clamp spring chuck; 114, spring feeding device; 1141, vibration platform; 1142, feeding mechanism; 1142a, fixed sleeve; 1142b, material taking needle; 115, clamp spring warehouse; 12, second assembly module; 121, screw mounting device; 1211, second turnover mechanism; 1211a, turnover part; 1211b, locking part; 1211c, second rotating shaft; 1211d, second fixed part; 122, watch case fixing tool; 123, screw feeding mechanism; 124, bar tube mounting device; 1241, vacuum suction nozzle; 125, pushing mechanism; 13, conveying module; 14, feeding module; 15, discharging module.

[0019] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0021] It should be noted that all directional indications, such as up, down, left, right, front, back, etc., in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0022] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features indicated or implying the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. For example, "A and / or B" includes A solution, or B solution, or A and B solution. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of a person of ordinary skill in the art. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0023] The present application provides a watch case assembly line body 1000 for mounting at least one first button assembly and at least one second button assembly to the watch case respectively, the first button assembly at least comprising a first key cap and a circlip, the second button assembly at least comprising a second key cap, a button support and a fastener, and the watch case being provided with at least two button mounting holes.

[0024] Please refer to Figure 13 In an embodiment, the watch case assembly line comprises: a base 10; at least one first assembly module 11 arranged on the base 10, the first assembly module 11 being configured to assemble the first key cap and the circlip of the first button assembly to a button mounting hole of the watch case; at least one second assembly module 12 arranged on the base 10, the second assembly module 12 being configured to assemble the button support, the fastener and the second key cap to another button mounting hole of the watch case; and a conveying module arranged on the base 10, the conveying module being configured to convey the watch case between the at least one first assembly module 11 and the at least one second assembly module 12.

[0025] It should be noted that the base 10 is the basic support structure of the entire watch case assembly line body 1000, which provides a stable mounting platform for other modules and components. In actual application, the base 10 can adopt various different materials and structural designs, such as cast iron platform or aluminum alloy rack.

[0026] The first assembly module 11 is mainly responsible for assembling the first key cap and the spring of the first button assembly to the watch case, which can be achieved by various different mechanical structures and automatic control methods. In an embodiment, the first assembly module 11 adopts the structure of multi-axis mechanical arm cooperating with automatic feeding device. The multi-axis mechanical arm has high flexibility and high precision motion control capability, and can accurately grab and place parts in three-dimensional space. A specially designed gripper is installed at the end of the mechanical arm, which has self-adaptive adjustment function and can automatically adjust the clamping force and position according to the different size and shape of the first key cap and the spring, to ensure the stability of grabbing. For example, the automatic feeding device includes two independent vibrating discs or hoppers for conveying the first key cap and the spring. The vibrating disc arranges and conveys the parts in order through vibration to the designated picking position. The mechanical arm picks the parts from the picking position of each vibrating disc according to the preset program, and accurately assembles them into the button mounting hole of the watch case. For example, the first key cap is first picked up and placed into the button mounting hole and preliminarily positioned, then the spring is picked up and installed at the specified position, completing the assembly of the first button assembly. In another embodiment, the first assembly module 11 adopts a carousel 1115 type assembly structure, which includes a rotatable circular carousel 1115. The carousel 1115 is evenly distributed with multiple stations, each station corresponding to a fixed clamp of a watch case to be assembled. Around the periphery of the carousel 1115, multiple assembly workstations are arranged, respectively responsible for the assembly of the first key cap and the spring. When the carousel 1115 rotates, the watch case passes through each assembly workstation with the clamp. For example, in the first key cap assembly workstation, a mechanical device with vacuum suction function sucks the first key cap from the upper key cap hopper and accurately places it into the button mounting hole of the watch case. Then, in the spring assembly workstation, a pneumatic gripper grabs the spring from the spring tray and installs it at the corresponding position of the watch case.

[0027] The second assembly module 12 is responsible for assembling the mounting bracket, fastener and second keycap to the watch case. The structure and working mode of the second assembly module 12 can also have various changes. In an embodiment, the second assembly module 12 adopts a linear guide rail type assembly structure. A set of parallel linear guide rails are installed on the base 10, and an assembly platform that can slide along the guide rails is arranged on the guide rails. A plurality of assembly mechanisms with different functions are installed on the assembly platform, including a mounting bracket installation mechanism, a fastener tightening mechanism and a second keycap installation mechanism. The mounting bracket installation mechanism adopts a structure of pneumatic clamping jaw cooperating with a linear module. The pneumatic clamping jaw grabs the mounting bracket from the mounting bracket warehouse, and then accurately inserts the mounting bracket into the key installation hole of the watch case through the linear module. The second keycap installation mechanism sucks the second keycap from the second keycap magazine through a vacuum suction cup, and presses the second keycap to the top of the mounting bracket. The fastener tightening mechanism adopts an electric screwdriver. When the second keycap is installed in place, the electric screwdriver sucks the fastener from the fastener hopper and screws it to the second keycap to complete the assembly of the second keycap assembly. During the assembly process, the actions of each mechanism are accurately controlled by a programmable logic controller (PLC) to ensure the sequence and accuracy of the assembly. In another embodiment, the second assembly module 12 can also adopt a collaborative robot module. The collaborative robot has safety and flexibility for working with people, and can complete more complex assembly tasks. The collaborative robot is equipped with a high-precision vision recognition system, which identifies and locates the mounting bracket, fastener and second keycap through a vision camera. In the mounting bracket assembly stage, the collaborative robot uses a special tool on the end effector to grab the mounting bracket from the mounting bracket rack, and accurately inserts the mounting bracket into the key installation hole of the watch case according to the feedback information of the vision system. When installing the second keycap, the collaborative robot takes the second keycap from the tray by vacuum suction, and accurately presses it onto the mounting bracket. For the installation of the fastener, the collaborative robot first sucks the fastener from the fastener feeder, and then uses a torque sensor to accurately control the tightening process of the fastener, to ensure that the tightening torque of the fastener meets the standard requirements.

[0028] Of course, in other embodiments, the key bracket can also be pre-installed on the watch case by manual operation, and then the installation of the second keycap and the fastener is completed by using automatic equipment.

[0029] The conveying module 13 can be a belt conveyor composed of a motor, a driving roller, a rubber conveyor belt, etc. The conveying module 13 can also be a watchcase clamping jig that is driven by a motor to run on a customized track. Of course, in other embodiments, the conveying module 13 can also be a chain conveyor mechanism or an air slide transmission mechanism. Regardless of the implementation form, as long as the conveying module 13 can stably carry the watchcase from the feeding module 14, transfer the watchcase from the watchcase warehouse, and accurately flow between multiple assembly modules, and finally convey the assembled watchcase to the discharging module 15. The conveying module 13 needs to meet the automation control requirements of the assembly line body (such as coordinated start and stop with the module, positioning accuracy suitable for assembly requirements), which belongs to the protection scope of the conveying module 13 in the watchcase assembly line body 1000, and is not limited here. Different implementation forms can be flexibly selected according to the production scale, watchcase material, workshop environment, and precision requirements. The core goal is to ensure the stability, accuracy, and efficiency of the watchcase conveying process, and to provide reliable work position connection support for subsequent key component assembly.

[0030] In addition, the watchcase assembly line body 1000 can adopt two ways of conveying module parallel feeding or serial feeding. When the conveying module parallel feeding is adopted, multiple assembly modules work synchronously, for example, at least one first assembly module 11 and at least one second assembly module 12 are respectively arranged on both sides of the conveying module, and the feeding ends of the two are accurately connected with the corresponding discharge ports of the conveying module. When the conveying module serial feeding is adopted, multiple assembly modules work in sequence. At this time, the conveying module is linearly arranged along the base 10. The watchcase is first conveyed to the first assembly module 11 or the second assembly module 12 arranged at the starting work position upstream of the conveying module. After the first key component or the second key component is assembled, it is moved to the multiple second assembly modules 12 or multiple first assembly modules 11 arranged downstream by the conveying module. A buffer area can be arranged between the middle sections of adjacent two assembly modules to buffer the process rhythm difference between the two assembly modules.

[0031] In the technical solution, the watch case assembly line body 1000 provided by the application can solve the problems of low efficiency and fluctuation of good product rate in manual assembly of the smart watch case and the key by adopting the combination of at least one first assembly module 11, at least one second assembly module 12 and a conveying module. Specifically, the first assembly module 11 can sequentially assemble the first key cap and the circlip into the key mounting hole of the watch case to complete the installation of the first key assembly; the second assembly module 12 can assemble the key support, the fastener and the second key cap into the key mounting hole of the watch case to complete the installation of the second key assembly. The whole process is automatically completed by the modules and the conveying module without manual operation, which avoids the artificial 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 case between two modules, which on the one hand eliminates the additional quality risks such as watch case bumping and positioning deviation that may occur in the process of manual transfer of the watch case, and on the other hand realizes the transfer of the watch case between the at least one first assembly module 11 and the at least one second assembly module 12, forms a continuous process of chain type assembly or cross type assembly, avoids the process stagnation caused by manual transfer, and further improves the production rhythm of the whole line body. In summary, the watch case assembly line body 1000 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 guarantees the assembly precision by reducing human intervention and stabilizes the product good product rate.

[0032] In addition, it should be noted that the first key assembly is mainly adapted to the key installation demand on the watch case with high assembly precision requirement and relatively simple structure. The component composition and assembly logic of the two structural schemes are as follows: first, scheme A (round key + snap spring structure), in this scheme, the core functional components of the first key assembly are round key and snap spring, wherein the round key directly serves as the first key cap, bearing the pressing operation and appearance decoration function of the key. The material of the round key is ABS engineering plastic, the outer contour of which is adapted to the first key hole of the watch case, and the inner side of the key is provided with an annular clamping groove for cooperation with the snap spring; the snap spring is a ring-shaped structure made of stainless steel, the inner diameter of which matches the diameter of the clamping groove of the round key, and is used to be clamped between the inner wall of the watch case and the clamping groove of the round key after the round key is assembled to the watch case, preventing the round key from coming out of the watch case and ensuring the stability of the assembled key; second, scheme B (square key + spring + snap spring structure), this scheme is designed for the key scene requiring rebound function, and the first key assembly is composed of square key, spring and snap spring, wherein the square key and the spring form the first key cap. The square key is made of PC+ABS alloy material, and its shape is square, which is adapted to the corresponding square first key hole of the watch case, and the bottom of the key is provided with a spring mounting groove; the spring is a stainless steel compression spring, one end of which is embedded in the spring mounting groove of the square key, and the other end is in abutment with the limiting structure inside the watch case after assembly, providing the key with pressing rebound force; the structure of the snap spring is the same as that of scheme A, and after the combination of the square key and the spring is assembled to the watch case, it is clamped at the connection between the watch case and the square key, realizing the axial fixation of the combination and avoiding the key from coming off the watch case during the rebound process.

[0033] The second key assembly is mainly adapted to the key installation requirement of the watch case which needs to have complex functions (such as signal transmission and multi-position adjustment), and rigid connection between components is achieved through a bracket and a fastener. The component composition and assembly logic of the two structural schemes are as follows: one is the C scheme (barrel + nut + round key structure). In this scheme, the second key assembly is composed of a barrel, a nut and a round key. The barrel serves as a key bracket and is made of brass, having a hollow structure (for passing through a signal line). One end of the barrel is provided with external threads, which can be screwed with the inner wall threads of the key mounting hole of the watch case. The other end of the barrel is provided with a stepped structure for mounting the round key. The nut serves as a fastener and is a stainless steel hexagonal nut. The round key is externally threaded and is used to tighten the nut from the outside of the watch case after the barrel is inserted into the key hole of the watch case, so as to lock and fix the round key. The round key serves as a second key cap and has the same structure as the round key in the A scheme. The round key is assembled on the stepped structure of the barrel and can slide axially along the barrel to achieve the pressing operation of the key. The other is the D scheme (spring-equipped square key + screw + mounting bracket structure). The scheme is designed for key scenarios that need to be fixed by multiple components. The second key assembly is composed of a spring-equipped square key, a screw and a mounting bracket. The functions of the components are as follows: the spring-equipped square key serves as a second key cap and has the same structure as the "square key + spring" combination in the B scheme. The square key is internally integrated with a spring and has a pressing and rebounding function. The mounting bracket serves as a key bracket and is made of aluminum alloy. The mounting bracket is provided with a mounting hole for fixing the watch case and a guide groove 1116 for cooperating with the square key, so as to provide sliding guidance and structural support for the square key. The screw serves as a fastener and is a stainless steel cross head screw. The screw is passed through the mounting hole of the mounting bracket and the threaded hole of the watch case to fix the mounting bracket to the inside of the watch case. At the same time, the screw can adjust the fit of the mounting bracket and the watch case through the locking force of the screw to ensure the smoothness of the sliding of the square key.

[0034] By selecting different numbers of first assembly modules 11 and / or second assembly modules 12 and adjusting the path of the conveying module, different combinations of production lines for two keys (such as A key + C key), three keys (such as 2 A keys + 1 C key or 1 B key + 2 D keys), four keys (such as 1 A key + 1 B key + 1 C key + 1 D key), or more than four keys can be formed to complete the assembly of the corresponding number and type of key assemblies on the watch case.

[0035] Referring to Figure 2 and Figure 3 In an embodiment, the first assembly module 11 and the second assembly module 12 each include: a dial adjusting device 111 configured to pick up a watch case located on the conveying module and adjust the watch case to an assembly posture with at least one key mounting hole exposed; and The key cap mounting device 112 is configured to pick up the first key cap in the key cap warehouse and insert the first key cap into the key mounting hole of the watch case in the assembled posture. The snap spring mounting device 113 is configured to pick up the snap spring in the snap spring warehouse 115 and mount the snap spring to the watch dial and the key cap.

[0036] It should be noted that the watch dial adjusting device 111 and the key cap mounting device are suitable for assembling the above-mentioned four different types of keys.

[0037] The watch dial adjusting device 111 can be a multi-axis mechanical arm combined with visual positioning. The mechanical arm end pneumatic gripper (with silicone anti-skid pad and automatic interval adjustment) positions the watch case through double industrial cameras, grabs and rotates to adjust to the exposed key mounting hole. Alternatively, the first watch dial adjustment can also be a pneumatic rotary table with a positioning pin. After the watch case is placed on the work station, the lifting platform holds the watch case, the elastic positioning pin is fixed, the electric rotary table drives the watch case to rotate, and the laser sensor stops when detecting the key mounting hole. It is suitable for large-scale production of standardized circular watch cases, and the adjustment is fast and the maintenance cost is low.

[0038] The key cap mounting device 112 can be a combination of vacuum suction and servo press fitting. The servo cylinder end suction disc sucks the first key cap, the lower pre-fitting sleeve receives the spring, and the electric cylinder drives the key cap to pre-fit the spring. After that, the key cap is inserted into the watch case key mounting hole at a set pressure. Alternatively, the key cap mounting device 112 can also be a combination of pneumatic gripper and guide sleeve. The finger air cylinder gripper holds the key cap, the guide sleeve first connects the spring, then covers the watch case key mounting hole for positioning, and finally the pneumatic sliding table pushes the first key cap into the watch case key mounting hole.

[0039] The snap spring mounting device 113 can be arranged at a downstream work station of the key cap mounting device 112 on the base 10, and is used in cooperation with the snap spring warehouse 115 (vibrating feeding type, which can output the snap spring in a pre-set posture). The core function is to automatically pick up the snap spring in the snap spring warehouse 115 and accurately mount it to the position where the watch dial and the key cap are clamped, so as to fix the key assembly and the watch case. The device includes a snap spring clamping mechanism, a linear pushing module and a clamping detection module. The snap spring clamping mechanism adopts two symmetrically arranged elastic clamps, the inner side of which is provided with an arc-shaped groove matched with the outer contour of the snap spring, which can provide uniform clamping force from both sides of the snap spring to avoid deformation of the snap spring during clamping. The roots of the clamps are connected with micro pneumatic cylinders, which can drive the clamps to open and close synchronously to realize clamping and releasing of the snap spring. The linear pushing module includes a servo-driven sliding table and a pushing cylinder. The servo-driven sliding table is arranged along the direction from the snap spring warehouse 115 to the watch case assembly position, which can drive the snap spring clamping mechanism to move accurately to the side of the watch case. The pushing cylinder is installed on the sliding block of the sliding table, and the piston rod thereof is connected with the clamping mechanism, which can drive the clamps to push towards the clamping position of the watch dial and the key cap, and clamp the snap spring into the pre-set clamping groove.

[0040] In this embodiment, the dial adjustment device 111 first picks up the horizontally transported watch case and flips it over to the assembly posture (with the hole facing up or down), so that the button mounting hole is always facing the assembly direction; then the button mounting device pushes the keycap into the corresponding button mounting hole, and finally the retaining spring mounting device 113 pushes the retaining spring in to lock it in to complete the installation.

[0041] See also Figure 2 and Figure 3 In one embodiment, the watch case located in the conveying module is in a horizontal transport posture; the assembly posture is a vertical assembly posture; The dial adjustment device 111 includes a first flipping mechanism 1111 and a first rotating clamping mechanism 1112 provided on the first flipping mechanism 1111. The first flipping mechanism 1111 is provided on the base 10 and can switch between a picking posture and an installation posture; the first rotating clamping mechanism 1112 is configured to pick up the watch case located on the conveying module and drive the watch case to rotate along its circumference; wherein, when the first flipping mechanism 1111 is in a picking posture, the first flipping mechanism 1111 can pick up the watch case located on the conveying module; when the first flipping mechanism 1111 is in an installation posture, the first rotating clamping mechanism 1112 can drive the dial to rotate to a vertical assembly posture.

[0042] It should be noted that the structure of the first flipping mechanism 1111 can be a structure of a fixed bracket 1114, a first rotating shaft 1113, and a drive assembly. Specifically, the fixed bracket 1114 is rigidly connected to the base 10 by bolts to ensure stable operation. The first rotating shaft 1113 is horizontally inserted into the top of the fixed bracket 1114. The shaft end is connected to the drive assembly (such as a servo motor + reduction gearbox, or a pneumatic motor) to provide power for flipping. The middle portion of the first rotating shaft 1113 is fixedly connected to the mounting base of the first rotating clamping mechanism 1112 to achieve the transmission of the flipping action to the clamping mechanism. At the same time, when the first flipping mechanism 1111 is in the picking posture, the clamping end of the first rotating clamping mechanism 1112 is flush with the case transport surface of the conveying module, facilitating horizontal picking of the watch case. In the mounting posture, the first rotating shaft 1113 drives the first rotating clamping mechanism 1112 to flip, so that the clamped watch case is rotated from a horizontal state to a vertical state. The flipping stroke can be precisely controlled by a limit sensor (such as a photoelectric limit or a mechanical limit) to avoid over-flipping or under-flipping.

[0043] The first rotating clamping mechanism 1112 is generally mounted on the first rotating shaft 1113 of the first overturning mechanism 1111 and is composed of a clamping assembly and a rotating drive. The clamping assembly can adopt a pneumatic clamping jaw (equipped with a silica gel non-slip pad to prevent the watch case from being clamped), and the opening degree of the clamping jaw can be adjusted by the stroke of the air cylinder according to the size of the watch case; the rotating drive (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 watch case clamped thereby can be rotated circumferentially. In the working room, the clamping jaw is closed to pick up the horizontal watch case on the pickup conveying module in the pickup posture; after the first overturning mechanism 1111 is switched to the installation posture, the rotating drive drives the watch case to rotate circumferentially, and through visual positioning (such as adding an industrial camera to identify the position of the key installation hole) or mechanical positioning (such as a watch case edge positioning pin), the key installation hole is accurately downward, and the adjustment of the vertical assembly posture is completed.

[0044] In the embodiment, the conveying module keeps the watch case in a horizontal transportation posture; the first overturning mechanism 1111 can pick up the watch case in the horizontal transportation posture in the pickup posture, and the first overturning mechanism 1111 can overturn the watch case by 90° to the vertical assembly posture in the installation posture, while the first rotating clamping mechanism 1112 drives the watch case to rotate circumferentially, so that the key installation hole is downward or upward; after the key pickup mechanism 1122 grabs the first key cap or the second key cap from the magazine, the pushing mechanism 1121 pushes the first key cap directly into the key installation hole from bottom to top or from top to bottom.

[0045] Please refer to Figure 4 In an embodiment, the watch case located on the conveying module is in a horizontal transportation posture; the assembly posture is a vertical assembly posture; the key cap installation device 112 includes a pushing mechanism 1121 and a key pickup mechanism 1122, the key pickup mechanism 1122 is configured to pick up the first key cap from the key magazine, and the pushing mechanism 1121 is configured to drive the key pickup mechanism 1122 to move upward or downward to press the picked first key cap into the corresponding key installation hole of the watch case located on the watch dial adjusting device 111.

[0046] It should be noted that the key picking mechanism 1122 is used to pick the first keycap from the key bin, which can be composed of a multi-degree-of-freedom mechanical arm and a picking end. For example, the mechanical arm (such as a three-axis linear module) is fixed to the base 10 through a support and 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 or the second keycap, for example, if it is a plastic keycap, a vacuum suction cup 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 or the second keycap in the bin is detected to be in place, the mechanical 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 push mechanism 1121, preparing for subsequent spring assembly and top loading. The push mechanism 1121 includes a jacking drive and a workpiece carrier, the workpiece carrier has a movable key carrier 1123 connected to the lifting end of the jacking drive; the key carrier 1123 is configured to limit the key; the jacking drive is configured to drive the key carrier 1123 upward, so that the key located in the key carrier 1123 can be inserted into the key hole in the vertical assembly posture.

[0047] It should be noted that the jacking drive is the core component that provides stable lifting power for the key carrier 1123, and directly determines the smoothness and accuracy of the key insertion process. The jacking drive can use a servo electric cylinder as a power source, guided by a guide 1124, the cylinder body is fixed to a predetermined mounting plane of the base 10 through a bolt assembly, the mounting plane is precisely milled to ensure that the cylinder body axis is coaxial with the key hole axis in the vertical assembly posture of the watch case, avoiding key insertion deviation caused by drive installation deviation; the lifting end of the drive (i.e. the top end of the piston rod of the electric cylinder) is provided with a flange connecting disc, the connecting disc surface is provided with a positioning pin hole and a threaded hole, which are rigidly fixed with the bottom of the key carrier 1123 through a double connection mode of positioning pin and bolt, to ensure that the piston rod can synchronously drive the key carrier 1123 to stably lift when it extends or retracts.

[0048] The bearing workpiece is a carrier for placing and limiting the keys, and the posture constraint and synchronous lifting of the keys are realized through the movable key bearing seat 1123. The bearing workpiece as a whole can be a metal frame structure, including a fixed base and a movable key bearing seat 1123, and the fixed base is fixedly connected with the side surface of the cylinder of the jacking driving member, thereby providing a lifting guide base for the key bearing seat 1123; the key bearing seat 1123 is a groove structure (such as a circular or square groove) adapted to the shape of the key, which prevents the keycap from horizontally deviating or rotating during lifting, and also does not block the insertion end at the top of the keycap, thereby ensuring that the keycap can be smoothly inserted into the key hole of the watch case; the flexible rubber pad layer has certain elasticity and supportability, which can prevent surface scratches caused by direct contact between the metal bearing and the key, and can also slightly buffer the impact force when the keycap is inserted, thereby protecting the surface coating of the keycap; the bottom of the key bearing seat 1123 is provided with a guide sliding block which is in sliding cooperation with the vertical guide sliding rail on the fixed base, the guide sliding rail is a precision linear guide rail, and the ball retainer is used to minimize the friction resistance of the key bearing seat 1123 during lifting, thereby ensuring that the key bearing seat 1123 can be smoothly moved in the vertical direction under the driving of the jacking driving member without jamming or tilting.

[0049] In the present embodiment, the key picking mechanism 1122 horizontally grabs the first keycap from the hopper; the pushing mechanism 1121 is raised or lowered in the vertical direction, so that the first keycap is pressed into the key mounting hole.

[0050] Please refer to Figure 5 In an embodiment, the first assembly module 11 further includes a snap spring mounting device 113, and the snap spring mounting device 113 includes: a snap spring chuck 1132 configured to clamp the snap spring; and a pushing mechanism 1131 configured to drive the snap spring chuck 1132 to move towards the watch case, so as to assemble the snap spring on the snap spring chuck 1132 with the first keycap and the watch case.

[0051] It should be noted that the snap spring mounting device 113 is adapted to assemble the A key and B key. The structure of the snap spring chuck 1132 is designed to adapt to the ring shape or special shape of the snap spring. Typically, two symmetrical elastic clamping arms are used. The material of the elastic clamping arms is selected from high-elasticity alloy (such as spring steel) or high-hardness engineering plastic, which has both elasticity and wear resistance, and can achieve natural deformation and reset during clamping and releasing, avoiding fatigue failure after long-term use. The inner side of the clamping arm is provided with an arc-shaped groove (adapted to a ring-shaped snap spring) or a special-shaped clamping groove (adapted to a special-shaped snap spring) matched with the outer shape of the snap spring. The root of the elastic clamping arm can be integrally formed with the chuck base 10. In the natural state, the two clamping arms are in a closed posture of inwardly tightening. When clamping the snap spring, external driving (such as pneumatic cylinder driving or electromagnetic driving) is applied to the middle part of the clamping arm to push the clamping arm outward to clamp the snap spring. After the driving is cancelled, the clamping arm resets and closes by itself, firmly clamping the snap spring to avoid falling off. At the same time, the snap spring chuck 1132 can be provided with an adjusting component (such as an adjusting bolt) to adjust the initial closed distance of the two elastic clamping arms to adapt to snap springs of different sizes (such as snap springs with different inner diameters and thicknesses). The structure of the pushing mechanism 1131 can adopt a combination of a linear driving component and a guide structure. The linear driving component can be selected from common forms such as pneumatic cylinder, electric sliding table or ball screw module. The guide structure is usually a linear guide rail arranged in parallel. The guide rail is fixedly connected with the moving platform of the pushing mechanism 1131, and the guide rail slider is connected with the base 10, ensuring that the pushing mechanism 1131 moves along the preset track (such as a horizontal track or a track with a specific angle of inclination) when driving the snap spring chuck 1132 to move, avoiding deviation. The installation of the pushing mechanism 1131 needs to be positioned with the dial adjusting device 111 and the key cap mounting device 112. The moving direction needs to be aligned with the clamping position of the watch case in the vertical assembly posture, so that the snap spring chuck 1132 can accurately push the snap spring to the assembly position.

[0052] In this embodiment, the clamping direction of the two elastic clamping arms of the snap spring chuck 1132 and the moving direction of the pushing mechanism 1131 need to be adapted to the vertical posture of the watch case. Typically, the pushing mechanism 1131 is pushed horizontally or slightly downward to avoid other structures of the watch case and the first key cap, and directly aligns with the clamping ring groove of the two. The moving stroke of the pushing mechanism 1131 needs to be set according to the distance between the watch case and the snap spring warehouse 115, so as to ensure that the snap spring can be accurately pushed from the warehouse to the assembly position. At the same time, the action timing of the snap spring mounting device 113 needs to be linked with the key cap mounting device 112, that is, after the key cap mounting device 112 completes the top assembly of the key cap and confirms that the top assembly is in place, the control system triggers the snap spring mounting device 113 to start, so as to ensure the complete assembly of the first key assembly. Based on this coordination logic, those skilled in the art can design the timing parameters of the control system, select appropriate sensors and driving components, and ensure that the snap spring mounting device 113 seamlessly cooperates with the other devices of the first assembly module 11, so as to realize the automation and precision of the overall assembly process.

[0053] Please refer to Figure 6 and Figure 7 In an embodiment, the first keycap comprises a cap body and two springs arranged on the cap body; the first assembly module 11 further comprises a spring feeding device 114, which comprises: a vibrating platform 1141, at least one limiting hole is arranged on the vibrating platform 1141, and the spring can be limited in the limiting hole and kept in a vertical posture during vibration; and a feeding mechanism 1142, which comprises a manipulator, a fixed sleeve 1142a and a material taking needle 1142b, the manipulator is arranged on the base 10, the fixed sleeve 1142a is arranged on the grabbing end of the manipulator, and the material taking needle 1142b is telescopically inserted into the sleeve, and the material taking needle 1142b is configured to pick up the spring in the limiting hole; wherein the feeding mechanism 1142 has a material taking state and a material returning state, in the material taking state, the material taking needle 1142b is in interference fit with the spring in the vertical posture; in the material returning state, the material taking needle 1142b is retracted in the fixed sleeve 1142a, so that the spring can fall into the mounting hole of the cap body in the horizontal posture under the abutment of the fixed sleeve 1142a.

[0054] It should be noted that the spring feeding device 114 is suitable for the assembly of the B scheme key. The vibrating platform 1141 is composed of a vibrating base, a loading plate and a vibrating driving part. The vibrating base is fixed to the base 10 through a shock pad to avoid the transmission of vibration affecting other devices. The loading plate is horizontally installed above the vibrating base, and at least one limiting hole is opened on the plate surface. The hole diameter of the limiting hole needs to be adapted to the outer diameter of the spring (slightly larger than the outer diameter of the spring to ensure that the spring can fall into it smoothly and not shake), and the hole depth is slightly smaller than the length of the spring to make the top of the spring exposed for subsequent picking up. The inner wall of the hole is treated with smoothness (to reduce the friction between the spring and the hole wall and avoid the spring from being stuck). The vibrating driving part (such as an electromagnetic vibrator or an eccentric wheel motor) is built-in in the vibrating base, and the vibration intensity of the loading plate can be controlled by adjusting the vibration frequency and amplitude.

[0055] The mechanical hand is used as a moving carrier, adopts a multi-axis linear module or a joint type mechanical arm, is fixed to the base 10 through a support, can move in a horizontal direction (to and fro between the vibration platform 1141 and the key cap installation device 112) and a vertical direction (adjusting the height of material taking and placing), the moving precision is controlled through a servo motor, and it is ensured that the first key cap installation hole and the limiting hole can be accurately aligned. The fixed sleeve 1142a is fixed to the grabbing end of the mechanical hand, has a hollow cylindrical structure, the inner diameter of the sleeve is matched with the outer diameter of the material taking needle 1142b (to ensure that the material taking needle 1142b can be smoothly extended and retracted), the bottom of the sleeve is a flat end face, and the bottom of the sleeve is used for abutting the spring top when the material is placed. The axis of the sleeve needs to be coaxial with the moving axis of the mechanical hand, and the relative position of the bottom of the sleeve and the bottom of the material taking needle 1142b needs to be fixed during installation. The material taking needle 1142b is telescopically inserted into the fixed sleeve 1142a and is composed of a needle body and a telescopic driving part. The needle body is made of high-strength metal, the needle tip is polished smooth, and the diameter of the needle body needs to be matched with the inner diameter of the spring (in the material taking state, the spring is in interference fit, and the material is stably picked up through friction). The telescopic driving part (such as a micro cylinder or an electromagnetic push rod) is installed at the top of the fixed sleeve 1142a, the output end is connected with the top end of the material taking needle 1142b, and the material taking needle 1142b can be driven to extend and retract along the sleeve axis (the telescopic stroke is slightly larger than the length of the spring, and the material taking and placing requirements are met).

[0056] In the present embodiment, the springs are first poured into the loading plate of the vibration platform 1141 in batches during spring loading, the vibration drive is started, the loading plate vibrates, the springs automatically fall into the limiting holes under the action of vibration and remain in the vertical posture, and positioning is completed; if the limiting holes are full, the excess springs will be pushed to the edge of the loading plate in the vibration and wait for subsequent positioning. The mechanical hand moves the fixed sleeve 1142a and the material taking needle 1142b above the vibration platform 1141, adjusts the height to make the material taking needle 1142b align with the spring in the vertical posture; the telescopic drive drives the material taking needle 1142b to extend downward, and the needle tip is inserted into the spring hole. Since the material taking needle 1142b and the spring are in interference fit, the spring is firmly clamped on the material taking needle 1142b; then the mechanical hand moves the material taking needle 1142b and the spring away from the vibration platform 1141 and moves to above the keycap of the keycap installation device 112 (at this time, the first keycap has been picked up by the key picking mechanism 1122 and remains in a horizontal posture with the installation hole upward). When assembling the spring, the mechanical hand adjusts the height to make the bottom of the material taking needle 1142b align with the installation hole of the first keycap; the telescopic drive drives the material taking needle 1142b to retract upward, the material taking needle 1142b drives the spring to move to the inside of the fixed sleeve 1142a, and when the top of the spring contacts the bottom end face of the fixed sleeve 1142a, the sleeve will generate a downward abutting force on the spring; as the material taking needle 1142b continues to retract, the spring is separated from the material taking needle 1142b under the action of the abutting force, falls into the installation hole of the first keycap from the bottom of the material taking needle 1142b, and completes spring assembly; finally, the mechanical hand resets the fixed sleeve 1142a and the material taking needle 1142b, preparing for the next material taking.

[0057] As can be seen, the vibration platform 1141 makes the spring automatically fall into the limiting hole through vibration, and the hole diameter and hole depth of the limiting hole are constrained to ensure that the spring remains in the vertical posture, avoiding posture deviation of manually placing the spring; and the action timing of the loading mechanism 1142 can be linked with the keycap installation device 112 (such as starting the loading immediately after the first keycap is in place), forming a coherent process of "keycap picking → spring loading → keycap pre-assembly", compared with manual loading, the overall assembly pace is greatly shortened, and the automation level and production efficiency of the first assembly module 11 are greatly improved.

[0058] Please refer to Figure 8 In an embodiment, the second assembly module 12 comprises: The dial adjusting device 111 is configured to pick up the watch case located on the conveying module and adjust the watch case to an assembly posture with at least one key installation hole exposed; The keycap installation device 112 is configured to pick up the second keycap in the keycap warehouse and insert the second keycap into the key installation hole of the watch case in the assembly posture in a predetermined posture; A bracket mounting device is configured to pick up the key bracket in the bracket magazine and mount the key bracket in a predetermined posture on the watch case on the dial adjusting device 111; and A fastener mounting device is configured to pick up the fastener in the fastener magazine and drive the fastener to fasten the second keycap and / or the key bracket in a predetermined posture.

[0059] It should be noted that this embodiment is implemented for C keys and D keys. The specific structure of the dial adjusting device 111 can refer to the foregoing, and the specific structure of the keycap mounting device 112 can be implemented by referring to the keycap mounting device 112 described above. However, it should be noted that in this embodiment, the key holes of the dial in the assembled posture are generally arranged upward to adapt to the installation of the C keys and the D keys, and therefore the keycap mounting device 112 is preferably a mechanical hand with a key bearing seat 1123.

[0060] The fastener mounting device generally includes a keycap picking element (such as a jaw / pad adapted to the shape of the second keycap) and a lifting driving element (such as a servo cylinder fixed to the base 10); the second keycap can be picked up from the key magazine, and the keycap is driven to be inserted into the key mounting hole of the key bracket in a predetermined posture (such as the buckle is aligned with the case slot), so as to realize the preliminary positioning of the keycap.

[0061] The bracket mounting device mainly includes a key bracket picking assembly, a posture calibration assembly, and a positioning moving assembly. The key bracket picking assembly can adopt a pneumatic jaw (the jaw opening degree can be adjusted according to the outer diameter of the key bracket, and the silica gel pad layer increases the friction and prevents scratching) or a vacuum nozzle 1241 (which is adapted to the inner diameter of the key bracket and is adsorbed on the inner wall of the key bracket by negative pressure to avoid scratching the outer wall). The posture calibration assembly is used to adjust the picked key bracket to a “predetermined posture” (that is, the axis of the key bracket is coaxial with the axis of the case key mounting hole, so as to ensure that there is no deviation during insertion), which is generally composed of a “visual positioning module + rotating driving element”. The visual positioning module (such as an industrial camera + image recognition algorithm) is installed beside the picking assembly and can identify the features (such as the chamfer and positioning hole at the end of the key bracket) at both ends of the key bracket to judge the deviation between the current posture and the predetermined posture. The rotating driving element (such as a micro servo motor) is linked with the picking assembly and can drive the key bracket to rotate around its own axis according to the visual positioning result to adjust the angle until the posture of the key bracket meets the predetermined requirements. The positioning moving assembly serves as the “moving carrier” of the device and is used to drive the picking assembly and the calibrated key bracket to accurately move to the case key mounting hole and complete the insertion. In structure, a “multi-axis linear slide” (such as an XY-axis slide table to control the horizontal movement and a Z-axis slide table to control the vertical insertion depth) is adopted, and a servo motor is selected as the slide driving element. The slide table is fixedly connected with the base 10, and the moving path is preset as “from the bracket magazine picking position to the posture calibration position to the case key mounting hole insertion position”, and no manual intervention is required throughout the process.

[0062] In the embodiment, the watch dial adjusting device 111 picks up the watch case on the conveying module, flips and adjusts to an assembly posture, exposes and aligns the key mounting hole with the support mounting device. Then, the support mounting device picks up the key support from the magazine, inserts the key support into the key mounting hole of the watch case in a predetermined posture. Next, the key cap mounting device 112 picks up the second key cap, drives it to be inserted into the key mounting hole of the assembled key support, and completes the preliminary assembly. Finally, the fastener mounting device picks up the fastener, aligns it with the threaded hole of the second key cap, fastens the fastener with the key cap at a set torque, and the assembly is completed. The watch case is transferred from the conveying module to the next link.

[0063] In an embodiment, the watch case on the conveying module is in a horizontal transportation posture; the assembly posture is a vertical assembly posture; The watch dial adjusting device 111 includes a first flipping mechanism 1111 and a rotating clamping mechanism. The first flipping mechanism 1111 is arranged on the base 10 and can switch between a picking-up posture and an installation posture. The rotating clamping mechanism includes a turntable 1115 arranged on the first flipping mechanism 1111 and a jaw structure arranged on the turntable 1115, which is configured to grab the watch case. The turntable 1115 is configured to drive the jaw structure to rotate along the circumference of the watch dial, so that the watch dial is in a vertical assembly posture with the key hole arranged upward. When the first flipping mechanism 1111 is in the picking-up posture, it can pick up the watch case on the conveying module. When the first flipping mechanism 1111 is in the installation posture, the rotating clamping mechanism can drive the watch dial to rotate to a vertical assembly posture, so that the key hole is arranged upward.

[0064] It should be noted that the specific implementation of the first flipping mechanism 1111 can be implemented by referring to the foregoing.

[0065] Please refer to Figure 9 In an embodiment, the key support is a bar pipe, and the fastener is a nut; the side of the watch dial provided with the jaw structure is provided with a guide groove 1116 for accommodating the nut; The fastener mounting device includes a nut feeding mechanism and a pushing mechanism 125. The nut feeding mechanism is configured to pick up the nut in the nut magazine to the guide groove 1116. The pushing mechanism 125 is arranged in the guide groove 1116 and is configured to push the nut upward along the guide groove 1116 to assemble with the second key cap inserted in the key hole.

[0066] It should be noted that this embodiment is implemented for the C button. The bracket mounting device is a barcode mounting device 124. The barcode pickup assembly typically uses a silicone vacuum nozzle 1241, the rear end of which is connected to a vacuum generator via an air pipe. The nozzle is positioned in correspondence with the bracket hopper. A pushing mechanism is provided at the bottom of the hopper to push the barcodes one by one to the nozzle pickup position, preventing them from becoming stuck.

[0067] In this embodiment, the fastener installation device includes a nut feeding mechanism and a pushing mechanism 125. The shape of the guide groove 1116 matches the outer shape of the fastener (adapting to 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 fastener shape to ensure that the fastener can slide smoothly and without shaking). The groove depth is slightly greater than the thickness of the fastener (to ensure that the fastener is fully embedded in the groove to prevent it from falling out during sliding). The groove length must cover the distance from the "fastener placement position" to the "assembly position with the second keycap" (to ensure that the fastener can be pushed to the assembly point by the pushing mechanism 125), ensuring that the fastener can accurately dock with the keycap after being pushed out of the groove. The pushing mechanism 125 includes a driver, a push rod, and a limit assembly. The driver can be a micro cylinder, an electric push rod, or a linear motor. One end of the push rod is fixed to the output end of the driver, and the other end can be extended into the guide groove 1116. The limit assembly is installed at the end of the guide groove 1116 or along the push rod's travel path to control the push rod's pushing distance to prevent over-pushing or under-pushing. During the design, it is necessary to ensure that the push rod can smoothly extend into the slot to push the fastener without interfering with the clamping jaw structure, case and other components.

[0068] In this way, the guide groove 1116 serves as a temporary storage space for the fastener. After the fastener feeding mechanism picks up the fastener, it can be directly placed into the groove. The constraint of the groove body can prevent the fastener from shifting or falling before assembly, replacing manual hand-held positioning and realizing the automation of fastener pre-positioning. When the pushing mechanism 125 pushes the nut, the guide groove 1116 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 1116 rotates synchronously with the turntable 1115 (because it is opened on the turntable 1115), when the turntable 1115 drives the case to rotate to a vertical assembly posture, the guide groove 1116 also adjusts to a position that is compatible with the second keycap. There is no need to adjust the direction of the groove body, achieving the synchronous connection between the case posture adjustment and the nut path guidance, simplifying the device structure.

[0069] In other embodiments, the fastener mounting device is composed of a nut feeding assembly, a nut picking assembly and a nut fastening assembly. The nut feeding assembly generally includes a vibrating distribution tray and a linear conveying track. The inner wall of the vibrating distribution tray is provided with a spiral distribution groove, the width of which is matched with the thickness of the nut. The bulk nuts in the hopper are conveyed along the distribution groove one by one to the inlet of the track. The linear conveying track conveys the nuts to the positioning groove at the end. The cross section of the positioning groove is hexagonal, which is completely matched with the outer shape of the nut, so as to ensure that the nut maintains a predetermined posture of "alignment of hexagonal surface and fastening direction" in the positioning groove, and waits to be picked up. The nut picking assembly adopts a magnetic hexagonal sleeve. The sleeve is made of tool steel, and the inner wall is provided with a hexagonal cavity matched with the nut. The sleeve is connected with the fastening assembly through a quick release interface, and can be quickly replaced to adapt to nuts of different specifications. The picking position of the sleeve corresponds to the positioning groove of the feeding assembly. When the nut reaches the positioning groove, the sleeve is pressed to cover the nut. The nut is adsorbed in the sleeve cavity under the action of magnetic force, so as to avoid falling off during movement. The nut fastening assembly generally includes a servo motor and a torque sensor. The output shaft of the servo motor is connected with the hexagonal sleeve through a shaft coupling, which can drive the sleeve to rotate with the nut. In addition, the fastening assembly is also equipped with a linear drive unit, which can drive the sleeve and the motor to move axially, so as to realize the transfer of the nut from the picking position to the fastening position.

[0070] In this way, the control system triggers the keycap mounting device 112 to perform keycap assembly only after the support mounting device completes the bar pipe insertion and issues the "bar pipe in place" signal. After the keycap mounting device 112 issues the "keycap in place" signal, the fastener mounting device starts the feeding and fastening process, avoiding confusion in process connection. At the same time, the positioning reference of both is based on the watch case key mounting hole on the dial adjustment device 111. The relative positions of each device are calibrated by the visual positioning system, greatly improving the overall assembly precision.

[0071] It should be noted that the fastener can be a hexagonal nut. Since the fastener needs to be locked with the second keycap, at least one of the picking parts of the fastener mounting device and the keycap mounting device 112 has a rotating function.

[0072] In an embodiment, the fastener mounting device further includes a screw locking device configured to pick up a screw in the screw hopper and lock the screw between the bar pipe and the watch case to fix the bar pipe on the watch case.

[0073] It should be noted that the embodiment is implemented for C key. The screw locking device generally includes a screw picking assembly (such as a magnetic bit / suction clamp jaw, which is adapted to the shape of the screw head to avoid dropping), a positioning and moving assembly (such as a multi-axis manipulator, which is installed on the base 10), and a locking driving assembly (such as a servo motor, which integrates a torque control function); the screw can be picked up from the screw bin, driven by the positioning and moving assembly to align the screw with the connecting hole of the bar tube and the watch case (the side wall of the bar tube is provided with a threaded hole or a through hole at the corresponding position of the watch case after being inserted), and then the locking driving assembly drives the bit to rotate to lock the screw between the bar tube and the watch case according to the set torque, so as to fix the bar tube.

[0074] In the 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 avoid displacement of the bar tube during subsequent assembly.

[0075] In an embodiment, the second assembly module 12 further includes a welding device configured to weld the screw and the bar tube; and / or, the welding device is configured to weld the fastener and the second key cap.

[0076] It should be noted that the embodiment is implemented for C key. The welding device generally includes a welding head (such as a laser welding head / resistance welding head, which is adapted to micro-component welding to avoid high-temperature damage to the watch case), a positioning and adjusting assembly (such as a three-axis fine adjustment sliding table, which is 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 assembly, and the two are welded according to the set temperature to strengthen the fixation; when the fastener and the second key cap are welded, the welding head is aligned with the contact edge between the fastener and the key cap by the positioning and adjusting assembly, and the two are welded by low-power welding (to avoid melting deformation) to prevent the fastener from loosening; during the welding process, the control module monitors the temperature in real time to avoid overheating damage to the surrounding components.

[0077] In this way, through the automatic process of “posture adjustment → bar tube insertion → screw fixation + welding → key cap installation → fastener locking + welding”, the high efficiency of mechanical fixation is retained, and “double reinforcement” is achieved through welding, the welding parameters are controllable, the quality fluctuation of manual welding can be avoided, and the high-precision and high-reliability watch mass production demand is fully met.

[0078] Please refer to Figure 10 、 Figure 11 and Figure 12In an embodiment, the key support is arranged at the outer periphery of the watch case at the key mounting hole, and the fastener is a screw; the fastener mounting device comprises a screw mounting device 121, the screw mounting device 121 comprising a second flipping mechanism 1211, a watch case fixing tool 122, and a screw feeding mechanism 123; the second flipping mechanism 1211 is configured to receive the watch case and transport the watch case to the watch case fixing tool 122, the watch case fixing tool 122 is configured to switch the watch case to a screw feeding posture, and the screw feeding mechanism 123 is configured to assemble a screw to the key support to be assembled with the second key cap.

[0079] It should be noted that the embodiment is implemented for the D key. The screw feeding mechanism 123 is responsible for the screening, feeding and precise locking of the screw, which can be composed of a screw, a feeding pipe and an electric screwdriver. The screw is screened out by vibration, and the qualified screw is sorted in the "head forward" posture, and is blown to the batch head through the feeding pipe; the electric screwdriver fixes the screw by magnetic adsorption, moves to the front of the screw hole, and then advances along the axial direction, and when the tightening action is started, the torque sensor monitors the torque in real time, and stops automatically and reverses a preset number of turns when the set value is reached, and if the torque is abnormal, an alarm is triggered to ensure the locking quality of the screw. When the watch case enters the second assembly module 12, the key cap mounting device 112 is first constructed from the conveying module 13 to grab the watch case, the posture is adjusted to make the key mounting hole face the lifting end of the push mechanism 1121, and then the push mechanism 1121 embeds the second key cap in the key mounting hole at a set speed and pushing force; after the key cap is embedded, the watch case is transferred to the screw mounting device 121 by the conveying module 13, the second flipping mechanism 1211 quickly grabs the watch case and flips to a posture suitable for screw feeding, and places it in the watch case fixing tool 122, the tool fixes the watch case through multi-point clamping and positioning pins; then the screw feeding mechanism 123 screens and feeds the screw to the electric screwdriver batch head, the batch head adsorbs the screw and then aligns the screw hole, starts the tightening action, the torque sensor monitors and ensures the locking quality, after the screw assembly is completed, the watch case fixing tool 122 releases the clamping jaw, the second flipping mechanism 1211 sends the watch case back to the conveying module 13 and transfers it to the next link, and the whole process realizes the automatic and high-precision assembly of the second key through the precise cooperation of each mechanism.

[0080] In the second assembly module for the D key, in an embodiment, the first flipping mechanism 1111 is further provided with a key cap abutting portion, which is configured to abut and limit the second key cap on the watch case.

[0081] In the embodiment, the key cap abutting portion is arranged on the surface of the first turnover mechanism 1111. When the rotating clamping portion clamps the watch case, the key cap abutting portion can abut against the second key cap positioned on the watch case. When the watch case needs to be transferred from the key cap mounting device 112 to the screw loading mechanism 123, in order to facilitate the stable flow of the watch case, the watch case needs to flow in a horizontal transportation posture. The second key cap and the key support on the watch case are not locked by the screw, and the watch case is in a vertical assembly posture. Therefore, the watch case needs to be switched from the vertical assembly posture to the horizontal transportation posture, that is, the first turnover mechanism 1111 rotates, and the second key cap is easy to deviate or fall off during the turnover process due to gravity or centrifugal force. Therefore, by arranging the key cap abutting portion, the posture of the second key cap on the watch case can be always restricted, so as to avoid the positional deviation of the second key cap relative to the key support during the turnover process of the watch case. It can be understood that the key cap abutting portion can be a protruding point structure, which can limit the second key cap through a multi-point contact mode. Alternatively, the key cap abutting portion can include a plurality of L-shaped limiting blocks, so that part of the structure of the second key cap is clamped into the key cap abutting portion. The shape of the key cap abutting portion is not limited.

[0082] Please refer to Figure 11 , further, in an embodiment, the second turnover mechanism 1211 includes a turnover portion 1211a and a locking portion 1211b, the locking portion 1211b is arranged on the turnover portion 1211a; The turnover portion 1211a is used for turning over the watch case, so as to switch the watch case from the horizontal transportation posture to the vertical assembly posture. The locking portion 1211b has at least two locking members which can approach and move away from each other. Each locking member is configured to abut against the inner circumferential surface of the watch case and deviate the second key cap and the key support.

[0083] In the embodiment, the second turnover mechanism 1211 includes a second fixed portion 1211d, a second rotating shaft 1211c, a turnover portion 1211a, a locking portion 1211b and a driving member. The second fixed portion 1211d not only provides a fixed basis for other components of the second turnover mechanism 1211, but also fixedly connects the conveying module 13, so as to realize the transfer of the watch case between different stations. Specifically, the second fixed portion 1211d can be spliced by a plurality of sheet metal parts, or be a separate part, and is connected with different structures by means of grooves, holes, protrusions and the like. The second fixed portion 1211d is provided with a shaft hole, the second rotating shaft 1211c is inserted into the shaft hole of the second fixed portion 1211d, the locking portion 1211b is connected with the second rotating shaft 1211c, and when the driving member operates, the second rotating shaft 1211c drives the turnover portion 1211a to turn over, so as to switch the watch case from the horizontal transportation posture to the vertical assembly posture.

[0084] The locking part 1211b includes four locking pieces, which are arranged at intervals in the circumferential direction. Thus, when clamping the watch case, a multi-point clamping area and uniform clamping force can be formed. Specifically, two aligned locking pieces are inserted into the hollow area of the watch case to abut against the inner circumferential surface of the watch case, and the other two aligned locking pieces are shorter to abut against the inner end surface of the watch case. Thus, the multiple spaced locking pieces can completely avoid the first key cap, the second key cap, and the key support, so as to avoid the attitude change of the pre-assembled parts. It can be understood that in the subsequent screwing process, the position degree between the screw hole on the watch case and the bit of the screw feeding mechanism 123 needs to be ensured. Therefore, after the watch case is conveyed to the watch case fixing tool 122, a high-precision attitude fine adjustment needs to be performed again. For the second turnover mechanism 1211, it only needs to ensure that the watch case can be placed on the watch case fixing tool 122.

[0085] Further, in an embodiment, the watch case fixing tool 122 includes a watch case bearing piece and a watch case locking part. The watch case locking assembly is arranged on the watch case bearing piece. The watch case locking part has at least two locking pieces that can approach and move away from each other. Each locking piece is configured to abut against the watch case and be misaligned with the second key cap and the key support. The watch case locking assembly is configured to switch the watch case from a vertical assembly attitude to a screw feeding attitude.

[0086] In the present embodiment, the watch case bearing piece can adopt a planar support structure or a curved surface profiling structure, for example, a positioning pin or a vacuum suction hole is arranged on the bearing surface to constrain the displacement of the watch case in the horizontal direction. The locking piece can be selected from a wedge block, a pneumatic clamp jaw, or an electromagnetic driving slider. The moving path of the locking piece forms an angle with the normal direction of the inner circumferential surface of the watch case, for example, the locking piece is cut into the inner wall of the watch case at a preset angle, and the multi-point dynamic clamping is achieved through friction and structural limiting. The watch case locking assembly can be integrated with a linear module or a rotary cylinder, for example, a servo motor drives a lead screw mechanism to move the locking piece in a predetermined direction by a predetermined distance, thereby ensuring the locking of the watch case on the watch case bearing piece.

[0087] When the watch case is placed on the watch case bearing piece, the watch case bearing piece can fix the bottom surface of the watch case through vacuum suction. Subsequently, the two locking pieces move away from each other under the action of the driving member such as a cylinder or a motor, thereby clamping the watch case. During the movement of the locking piece, at least one time period will be in contact with the watch case. Therefore, after the locking piece is moved to the position, the attitude of the watch case on the watch case bearing piece can be changed, thereby forcing the watch case to enter the screw feeding attitude.

[0088] In an embodiment, the screw mounting device 121 is provided with a watch shell taking station and a watch shell locking station, the second turnover mechanism 1211 is arranged corresponding to the watch shell taking station, and the screw feeding mechanism 123 is arranged corresponding to the watch shell locking station; the screw mounting device 121 has a watch shell butt joint state, in which the locking portion 1211b is opposite to the locking surface of the watch shell bearing.

[0089] In the embodiment, the second turnover mechanism 1211 is arranged corresponding to the watch shell taking station, so that the watch shell taking station receives the watch shell located on the second turnover mechanism 1211, and the screw feeding mechanism 123 is arranged corresponding to the watch shell locking station, so as to perform the screw feeding process; in this process, the watch shell fixing tool 122 moves between the watch shell taking station and the watch shell locking station, thereby realizing the transfer of the watch shell; wherein when the watch shell fixing tool 122 receives the watch shell of the second turnover mechanism 1211, the locking portion 1211b of the second turnover mechanism 1211 is opposite to the locking surface of the watch shell bearing, so that when the watch shell is transferred, the watch shell in the vertical assembly posture can be prevented from changing the posture.

[0090] The application further provides a wristband device assembly bus, which comprises the watch shell assembly line body 1000 as described above, and specifically comprises the watch shell assembly line body 1000, a display screen assembly line body, a dial assembly line body and the like. By using the automatic wristband device assembly bus, efficient and accurate assembly is realized. The specific structure of the watch shell assembly line body 1000 is referred to the above embodiment. Since the wristband device assembly bus provided by the application adopts all the technical solutions of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here.

[0091] The above is only the preferred embodiment of the application, and does not limit the patent scope of the application. Any equivalent structural transformation based on the inventive concept of the application, or direct / indirect application in other related technical fields is included in the patent protection scope of the application.

Claims

1. A watch case assembly line, for respectively mounting at least one first button assembly and at least one second button assembly on a watch case, wherein the first button assembly comprises at least a first keycap and a retaining spring, and the second button assembly comprises at least a second keycap, a button bracket, and a fastener, and the watch case is provided with at least two button mounting holes; characterized in that: The watch case assembly line comprises: base; at least one first assembly module, disposed on the base, wherein the first assembly module is configured to assemble the first keycap and the clamping spring of the first button assembly into one of the button mounting holes of the watch case; at least one second assembly module, disposed on the base, the second assembly module being configured to assemble the key bracket, the fastener, and the second keycap to another key mounting hole of the watch case; and A conveying module is provided on the base, and is configured to convey the watch case between at least one first assembly module and at least one second assembly module.

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

3. The watch case assembly line according to claim 2, wherein: The watch case located in the conveying module is in a horizontal transport posture; the assembly posture is a vertical assembly posture; The dial adjustment device includes a first flipping mechanism and a first rotating clamping mechanism provided on the first flipping mechanism, the first flipping mechanism being provided on the base and being switchable between a picking posture and an installation posture; the first rotating clamping mechanism being 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 first flipping mechanism is in the picking posture, the first flipping mechanism is capable of picking up the watch case located on the conveying module; when the first flipping mechanism is in the installation posture, the first rotating clamping mechanism can drive the dial to rotate to the vertical assembly posture; and / or The keycap installation device includes a pushing mechanism and a key picking mechanism. The key picking mechanism is configured to pick up the first keycap from the key hopper. The pushing mechanism is configured to drive the key picking mechanism to move so as to press the picked up first keycap into the corresponding key installation hole of the watch case on the dial adjustment device.

4. The watch case assembly line according to claim 2, wherein: The retaining spring installation device comprises: 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 any one of claims 2 to 4, wherein: The first keycap includes a cap body and two springs provided on the cap body; the first assembly module also includes a spring feeding device, and the spring feeding 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 feeding mechanism has a material picking state and a material returning state. In the material picking state, the material picking needle has an interference fit with the spring in a vertical posture; in the material returning state, the material picking needle retracts into the fixed sleeve so that the spring can fall into the mounting hole of the cap body in a horizontal posture under the abutment of the fixed sleeve.

6. The watch case assembly line according to claim 1, wherein: The second assembly module includes: a dial adjusting device, the dial adjusting device being configured to pick up the watch case on the conveying module and adjust the watch case to an assembly posture with at least one button mounting hole exposed; a keycap installation device, the keycap installation device being configured to pick up the second keycap from the key magazine and insert the second keycap into the key installation hole of the watch case in the assembly posture in a predetermined posture; a bracket installation device, the bracket installation device being configured to pick up the button bracket from a bracket hopper and install the button bracket on the watch case located on the dial adjustment device in a predetermined posture; and A fastener installation device is configured to pick up the fasteners in the fastener bin and drive the fasteners to be fastened and connected with the second keycap and / or the key bracket in a predetermined posture.

7. The watch case assembly line according to claim 6, wherein: The watch case located in the conveying module is in a horizontal transport posture; the assembly posture is a vertical assembly posture; The dial adjustment device includes a first flipping mechanism and a rotating clamping mechanism, wherein the first flipping mechanism is provided on the base and can switch between a picking posture and an installation posture. The rotating clamping mechanism includes a turntable provided on the first flipping mechanism and a clamping claw structure provided on the turntable, wherein the clamping claw structure is configured to grasp the watch case; the turntable is configured to drive the clamping claw structure to rotate along the circumference of the dial so that the dial is located in the vertical assembly posture with the button hole facing upward. Among them, when the first flipping mechanism is in the picking posture, the first flipping mechanism can pick up the watch case located on the conveying module; when the first flipping mechanism is in the installation posture, the rotating clamping mechanism can drive the dial to rotate to the vertical assembly posture so that the button hole is set upward.

8. The watch case assembly line according to claim 7, wherein: The button bracket is a bar tube, and the fastener is a nut; a guide groove for accommodating the nut is provided on one side of the dial where the clamping structure is provided; The fastener installation device includes a nut loading mechanism and a pushing mechanism. The nut loading mechanism is configured to pick up the nut in the fastener hopper to the guide groove; the pushing mechanism is arranged in the guide groove and is configured to push the nut upward along the guide groove until it is assembled with the second keycap inserted into the key hole.

9. The watch case assembly line according to claim 6 or 7, wherein: The button bracket is arranged on the outer periphery of the button mounting hole of the watch case, and the fastener is a screw; The fastener installation device includes a screw installation device, and the screw installation device includes a second flipping mechanism, a case fixing tool and a screw feeding mechanism; the second flipping mechanism is configured to receive the case and convey the case to the case fixing tool, the case fixing tool is configured to switch the case to a screw feeding posture, and the screw feeding mechanism is configured to assemble the screw to the case in the feeding posture so that the key bracket and the second keycap are assembled.

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.

Images