Watchcase assembling method and wristband equipment assembling bus

Abstract

The invention relates to the technical field of intelligent wearing equipment processing, in particular to a watchcase assembling method and a wristband equipment assembling bus, and the watchcase assembling method comprises the steps that a first case overturning mechanism is controlled to drive a watchcase to enter a first pre-assembling posture; the jacking mechanism and the pushing mechanism are controlled to assemble the first key to the meter shell through the first mounting hole; a second shell turnover mechanism is controlled to drive the meter shell to enter a second preassembling posture; the control key body lowering mechanism, the third shell overturning mechanism and the screw feeding mechanism assemble the second key to the meter shell through the second mounting hole, so that the second key, the key bracket and the meter shell are in limiting fit; wherein the assembly of the first key and the second key on the watchcase is executed step by step. The invention mainly aims to provide a watchcase assembly method, and aims to complete assembly between a case and a key through an automatic process, thereby improving the product processing efficiency, the yield and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent wearable device processing, in particular to a watch case assembling method and a wristband device assembling 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 distance in the motion 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 motion 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, which aims to complete the assembly between the case and the button through an automatic process, thereby improving the product processing efficiency and yield.

[0005] To achieve the above purpose, the watch case assembly method is used to assemble a watch case and a button assembly, the watch case includes a first mounting hole, a second mounting hole and a button support, the button support is provided opposite to the second mounting hole, the button assembly includes a first button and a second button, a case assembly line is provided, the base of the case assembly line includes a first case overturning mechanism, a jacking mechanism, a circlip pushing mechanism, a second case overturning mechanism, a third case overturning mechanism, a key body lowering mechanism and a screw feeding mechanism; the watch case assembly method comprises: controlling the first case overturning mechanism to drive the watch case into a first pre-assembly posture; controlling the jacking mechanism and the spring pushing mechanism to assemble the first button to the watch case via the first mounting hole; controlling the second shell overturning mechanism to drive the watch case into a second pre-assembly posture; controlling the key body lowering mechanism, the third shell overturning mechanism and the screw feeding mechanism to assemble the second button to the watch case via the second mounting hole, so that the second button, the button support and the watch case are limitedly matched; Wherein, the first button and the second button are assembled step by step.

[0006] In an embodiment of the present application, the step of controlling the first shell overturning mechanism to drive the watch case into a first pre-assembly posture comprises: controlling the first shell overturning mechanism to obtain the watch case in a flat posture; controlling the first shell overturning mechanism to drive the shell to move in a first preset direction, so that the watch case is switched from the flat posture to the first pre-assembly posture.

[0007] In an embodiment of the present application, the first shell overturning mechanism comprises an overturning part and a rotating part, and the rotating part is fixedly arranged on the overturning part. The step of controlling the first shell overturning mechanism to drive the shell to move in a first preset direction, so that the watch case is switched from the flat posture to the first pre-assembly posture comprises: controlling the overturning part to rotate in a first preset rotation direction, so that the watch case is switched from the flat posture to an upright posture; controlling the rotating part to rotate in a second preset rotation direction, so that the watch case is switched from the upright posture to the first pre-assembly posture, and in the first pre-assembly posture, the insertion port of the first mounting hole faces the base.

[0008] In an embodiment of the present application, the first button comprises a first key body and a spring, and the step of controlling the jacking mechanism and the spring pushing mechanism to assemble the first button to the watch case via the first mounting hole comprises: controlling the first shell overturning mechanism to align the jacking mechanism, so that the first mounting hole is aligned with the first key body of the jacking mechanism; controlling the jacking mechanism to drive the first button to be assembled to the watch case via the first mounting hole; controlling the first shell overturning mechanism to align the spring pushing mechanism, so that the first key body is aligned with the spring of the spring pushing mechanism; controlling the spring pushing mechanism to drive the spring to be assembled to the first key body via the first mounting hole, so that the first button is assembled with the watch case.

[0009] In an embodiment of the present application, the second case overturning mechanism comprises an overturning part and a rotating part, the rotating part is fixedly arranged on the overturning part; the step of controlling the second case overturning mechanism to drive the watch case into the second pre-assembly posture comprises: controlling the rotating part to obtain the watch case in the flat posture; controlling the overturning part to rotate in the first preset rotation direction, so that the watch case is switched from the flat posture to the vertical posture; controlling the rotating part to rotate in the third preset rotation direction, so that the watch case enters the second pre-assembly posture from the vertical posture, in the second pre-assembly posture, the insertion port of the second mounting hole faces away from the base.

[0010] In an embodiment of the present application, the second key comprises a second key body and a screw; the step of controlling the key body lowering mechanism, the third case overturning mechanism and the screw feeding mechanism to assemble the second key to the watch case through the second mounting hole, so that the second key, the key support and the watch case are limitedly matched, comprises: controlling the second case overturning mechanism and the key body lowering mechanism to assemble the second key body to the watch case through the second mounting hole; controlling the third case overturning mechanism and the screw feeding mechanism to assemble the screw to the second key body through the second mounting hole, so that the second key, the key support and the watch case are limitedly matched.

[0011] In an embodiment of the present application, the step of controlling the second case overturning mechanism and the key body lowering mechanism to assemble the second key body to the watch case through the second mounting hole comprises: controlling the second case overturning mechanism to align the key body lowering mechanism, so that the second mounting hole is aligned with the second key body of the key body lowering mechanism; controlling the key body lowering mechanism to drive the second key body to be assembled to the watch case through the second mounting hole.

[0012] In an embodiment of the present application, the case assembly line body further comprises a watch case fixing tool; the step of controlling the third case overturning mechanism and the screw feeding mechanism to assemble the screw to the second key body through the second mounting hole comprises: controlling the third case overturning mechanism to drive the watch case into the third pre-assembly posture; controlling the watch case fixing tool to obtain the watch case in the third pre-assembly posture, and driving the watch case to switch to the screw upper shell posture; Control the screw feeding mechanism to assemble the screw to the key support and the second key.

[0013] In an embodiment of the present application, the watch case fixing tool includes a watch case carrier and a watch case locking part; the step of controlling the watch case fixing tool to obtain the watch case in the third pre-assembly posture and driving the watch case to switch to the screw-on case posture includes: Controlling the third shell overturning mechanism to align the watch case carrier; Controlling the watch case carrier to obtain the watch case in the third pre-assembly posture; Controlling the watch case locking part to adjust the posture of the watch case, so that the watch case switches to the screw-on case posture.

[0014] The present application also provides a wristband device assembly bus, which includes a shell assembly line body; the shell assembly line body is used to realize the watch case assembly method according to any one of the above.

[0015] In the technical solution, the assembly of the first key and the second key on the watch case is performed step by step by providing a shell assembly line body with a specific structure. Specifically, the first shell overturning mechanism, the jacking mechanism, and the circlip pushing mechanism work cooperatively to quickly assemble the first key to the watch case through the first mounting hole. The second shell overturning mechanism, the key body lowering mechanism, the third shell overturning mechanism, and the screw feeding mechanism work closely to efficiently complete the assembly of the second key to the watch case through the second mounting hole. The whole process is automatically operated, which greatly shortens the assembly time compared with manual assembly and meets the demand for efficiency in large-scale production. Based on this, the automatic assembly process avoids errors caused by manual operation, and each mechanism operates according to a precise program, so that the assembly position precision of the first key and the second key and the watch case is higher, the limiting cooperation of the keys and the watch case and the key support is more precise, the assembly defects caused by human factors are reduced, and thus the product yield is improved, meeting the high requirements of the intelligent device manufacturing industry on product quality stability. 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 unit layout diagram of an embodiment of the watch case assembly line provided by the present application; Figure 2 The mechanism layout diagram of an embodiment of the first assembly unit provided by the present application; Figure 3 Structure diagram of an embodiment of the first shell overturning mechanism in a first state; Figure 4 Structure diagram of an embodiment of the first shell overturning mechanism in a second state; Figure 5 Structure diagram of an embodiment of the jacking mechanism; Figure 6 Structure diagram of an embodiment of the clamp spring pushing mechanism; Figure 7 Mechanism layout diagram of an embodiment of the key body feeding subunit; Figure 8 Mechanism layout diagram of an embodiment of the screw feeding subunit; Figure 9 Structure diagram of an embodiment of the key body placing mechanism; Figure 10 Structure diagram of an embodiment of the third shell overturning mechanism; Figure 11 Structure diagram of an embodiment of the screw feeding mechanism; Figure 12 First flowchart of an embodiment of the watch shell assembling method provided by the present application; Figure 13 Second flowchart of an embodiment of the watch shell assembling method provided by the present application; Figure 14 Third flowchart of an embodiment of the watch shell assembling method provided by the present application; Figure 15 Fourth flowchart of an embodiment of the watch shell assembling method provided by the present application; Figure 16 Fifth flowchart of an embodiment of the watch shell assembling method provided by the present application; Figure 17 Sixth flowchart of an embodiment of the watch shell assembling method provided by the present application; Figure 18 Seventh flowchart of an embodiment of the watch shell assembling method provided by the present application; Figure 19 Eighth flowchart of an embodiment of the watch shell assembling method provided by the present application; Figure 20 Ninth flowchart of an embodiment of the watch shell assembling method provided by the present application.

[0018] Explanation of reference numerals: 10, base; 11, first assembly unit; 12, key body feeding subunit; 13, screw feeding subunit; 14, conveying module; 15, feeding unit; 16, discharging unit; 111, first shell overturning mechanism; 112, jacking mechanism; 113, spring pushing mechanism; 121, second shell overturning mechanism; 122, key body lowering mechanism; 131, third shell overturning mechanism; 132, watchcase fixing tool; 133, screw feeding mechanism; 141, conveying belt; 142, guide rail; 1111, first overturning part; 1112, rotating part; 1113, first rotating shaft; 1114, first fixed part; 1121, jacking driving part; 1122, workpiece bearing; 1123, key bearing; 1124, guide part; 1131, flat pushing driving part; 1132, spring limiting part; 1311, second overturning part; 1312, locking part; 1313, second rotating shaft; 1314, second fixed part; 2, second key body.

[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] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

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

[0022] In addition, the description related to "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 indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application.

[0023] To achieve the above object, the watch case assembly method is used to assemble a watch case and a key assembly, the watch case comprises a first mounting hole, a second mounting hole and a key support, the key support is arranged opposite to the second mounting hole, the key assembly comprises a first key and a second key, a shell assembly line body is provided, a base of the shell assembly line body comprises a first shell overturning mechanism, a jacking mechanism, a circlip pushing mechanism, a second shell overturning mechanism, a third shell overturning mechanism, a key body lowering mechanism and a screw feeding mechanism; please refer to Figure 12 , the watch case assembly method comprises: Step S10: controlling the first shell overturning mechanism to drive the watch case into a first pre-assembly posture; Step S20: controlling the jacking mechanism and the circlip pushing mechanism to assemble the first key to the watch case through the first mounting hole; Step S30: controlling the second shell overturning mechanism to drive the watch case into a second pre-assembly posture; Step S40: controlling the key body lowering mechanism, the third shell overturning mechanism and the screw feeding mechanism to assemble the second key to the watch case through the second mounting hole, so that the second key, the key support and the watch case are limited to cooperate; Wherein, the assembly of the first key and the second key on the watch case is performed step by step.

[0024] First of all, it needs to be explained that the shell assembly line body includes the most basic feeding unit and discharging unit. In these two units, whether it is through equipment to realize automatic stacking and discharging or control cost to adopt manual stacking and discharging, in order to ensure that the shell does not appear inclination, displacement and other position and posture changes in the process of circulation, the shell is placed in a flat manner, that is, the front or back of the shell faces the surface of the base, so as to ensure the stability of the shell in the process of circulation.

[0025] Step S10 is a pre-preparation link of the first key assembly, and the core purpose is to create conditions for the accurate alignment of the first key and the first mounting hole through posture adjustment. First, the first shell overturning mechanism, as the core executive component of posture adjustment, will start action according to the preset program, driving the watch case to rotate around a specific axis to a preset angle. Since the first key needs to be assembled through the first mounting hole of the watch case, and the initial posture of the watch case may not meet the insertion direction or assembly operation space requirements of the first key, the first shell overturning mechanism adjusts the watch case to the "first pre-assembly posture" - in this posture, the first mounting hole is in a position that is convenient for the lifting mechanism to push the first key and ensures the smoothness of the key insertion path, for example, the axis of the first mounting hole is consistent with the pushing direction of the lifting mechanism, while reserving enough space for the subsequent cooperation of the spring pushing mechanism, ensuring the coherence and accuracy of the entire first key assembly process. Step S20 is the core assembly link of the first key, which realizes the accurate assembly of the first key and the watch case through the coordinated action of the lifting mechanism and the pushing mechanism. First, the lifting mechanism will lift the first key to be assembled to the height position corresponding to the first mounting hole of the watch case according to the preset position parameters, ensuring that the axis of the first key is aligned with the axis of the first mounting hole, laying the foundation for the subsequent insertion operation; then, the spring pushing mechanism starts to apply a stable pushing force to the first key, allowing the first key to slowly insert into the first mounting hole of the watch case along the preset path.

[0026] Step S30 is a transition link connecting the first key assembly and the second key assembly, and the core is to adapt the assembly requirements of the second key and the second mounting hole by adjusting the posture of the watch case again. Since the structure, assembly path and cooperation relationship of the second key are different from those of the first key, the current posture of the watch case after the first key assembly cannot meet the assembly requirements of the second key - for example, the initial position of the second mounting hole may be blocked by the structure of the watch case itself or the assembled first key, or the insertion direction of the second key does not match the current posture of the watch case, and the key support is aligned with the second mounting hole, which needs to ensure that the second key can accurately form a limit position with the support after insertion. Therefore, the second shell overturning mechanism will drive the watch case to rotate to the "second pre-assembly posture" according to the position parameters of the second mounting hole, the key support and the assembly path of the second key: in this posture, the second mounting hole will be in a position that is convenient for the key body lowering mechanism to lower the second key, while ensuring that the key support on the inner side of the watch case is exactly in the limit position after the second key is inserted. Step S40 is the assembly link of the second key, and through the cooperative operation of the three mechanisms, the precise assembly and limiting fixation of the second key, the watch case and the key support are realized. Through the cooperation of the three mechanisms, the second key assembly is completed in stages and the limiting cooperation of the three is realized. First, the key body lowering mechanism fixes the second key body by profiling jigs or vacuum adsorption under the premise that the second mounting hole of the watch case is opposite to the lifting end, stably lowers the key body by servo drive, accurately embeds it into the second mounting hole, preliminarily completes the assembly with the watch case, and avoids component damage through the guiding assembly and the preset force. Secondly, the third shell overturning mechanism offsets the second key body and the key support through the locking part, clamps the inner circumferential surface of the watch case, switches the watch case from the second key body assembly posture to the second vertical posture through the second overturning part, and is transferred to the watch case fixing tool, the posture of the watch case is stable throughout the process, and the relative position of the key body and the support is ensured unchanged. Finally, the watch case fixing tool clamps the watch case through the locking part and adjusts it to the screw feeding posture, that is, the screw hole is aligned with the bit, the screw feeding mechanism feeds the screw to the bit through the vibration disc screening and feeding pipe, the electric screwdriver tightens the screw according to the preset torque, the second key body and the key support are firmly connected, and finally the limiting cooperation of the second key, the key support and the watch case is realized, meeting the pressing function requirement.

[0027] In an embodiment of the present application, please refer to Figure 13 , step S10 comprises: Step S110: controlling the first shell overturning mechanism to obtain the watch case in a flat posture; Step S120: controlling the first shell overturning mechanism to drive the shell to move in a first preset direction, so that the watch case is switched from the flat posture to the first pre-assembly posture.

[0028] Step S110 is the initial link of the watch case posture adjustment, and the core is to complete the accurate grabbing and fixing of the watch case in a flat posture through the shell overturning mechanism. Among them, the flat posture refers to the axis of the first mounting hole or the second mounting hole of the watch case being parallel to the surface of the base, and the watch case is usually placed with the front or back surface facing the base (such as the initial state of the watch case conveyed by the conveying module). The rotating part of the shell overturning mechanism has clamping function, which will start the clamping action according to the characteristics of the inner or outer circumferential surface of the watch case: if it is for the inner circumferential surface of the watch case, the movable clamping arms will move away from each other to fit the inner circumferential wall, and the watch case is fixed through the constant clamping force; if it is for the outer circumferential surface of the watch case, the clamping arms will move close to each other to wrap the outer circumference, so as to avoid damaging the surface coating of the watch case. During the grabbing process, the shell overturning mechanism will combine the watch case positioning signal of the conveying module to ensure that the rotating part accurately aligns with the watch case, avoids the watch case from falling off or the initial posture deviation caused by grabbing deviation, and provides a stable foundation for subsequent posture switching.

[0029] Step S120 is the core step of the watch case posture adjustment. The watch case is converted from the flat posture to the first preset posture meeting the assembly requirement of the first button through the coordinated action of the case overturning mechanism. The first preset direction is the movement trajectory preset based on the assembly requirement of the first mounting hole. The action of the case overturning mechanism is divided into two steps: in the first step, the first overturning part is rotated around the first rotating shaft under the driving of the servo motor, and the watch case is switched from the flat posture to the first vertical posture. For example, the axis of the mounting hole is switched from parallel to the base surface to intersecting the base surface, such as overturning 90°, so that the watch case is perpendicular to the base. In the second step, the rotating part drives the watch case to fine-tune the rotation under the driving of the rotating motor, adjusts the circumferential angle of the watch case in the first vertical posture, and finally makes the insertion port of the first mounting hole completely face the lifting end of the jacking mechanism, that is, the first preset posture is formed. The whole process is realized through servo driving to achieve high-precision angle control, ensure that the axis of the first mounting hole coincides with the path of pushing the first button by the jacking mechanism, and constant clamping force avoids displacement or damage of the watch case, which creates conditions for precise insertion of the first button.

[0030] In an embodiment of the present application, the first case overturning mechanism includes an overturning part and a rotating part, and the rotating part is fixedly arranged on the overturning part. Please refer to Figure 14 , step S120 includes: Step S1210: controlling the overturning part to rotate in a first preset rotating direction, so that the watch case is switched from the flat posture to the vertical posture; Step S1220: controlling the rotating part to rotate in a second preset rotating direction, so that the watch case is switched from the vertical posture to the first preset posture. In the first preset posture, the insertion port of the first mounting hole faces the base.

[0031] Step S1210 is a step of converting the posture of the watch case from the initial placement state to the assembly adaptation state. The core is to change the overall posture of the watch case through the directional rotation of the overturning part. The overturning part of the first case overturning mechanism is driven by the driving part such as the servo motor to rotate smoothly in the first preset rotating direction. The rotation angle can be accurately controlled, such as ensuring that the watch case is in the vertical state after overturning, without excessive overturning or overturning part. At the same time, since the rotating part is fixed on the overturning part, the rotating part will move synchronously with the overturning part, and then drive the watch case fixed by the rotating part to complete the posture switching, avoiding the relative displacement of the watch case with the overturning part and the rotating part during the overturning process, and laying a stable posture foundation for the fine-tuning action of the rotating part.

[0032] Step S1220 is the directional alignment of the watch case mounting hole in the vertical posture, and the final first pre-installation posture is achieved through fine rotation of the rotating part. The second preset rotation direction is a rotation track (such as circumferential rotation around the axis of the rotating part) preset based on the target that the second mounting hole insertion port needs to face the base. The rotating part drives the watch case to rotate circumferentially along the second preset rotation direction under the drive of a special driving assembly (such as a rotating motor), and the rotation accuracy can be controlled in a high range, ensuring that the insertion port of the first mounting hole can be accurately turned and face the base in the vertical posture. When the insertion port of the first mounting hole completely faces the base, the watch case enters the first pre-installation posture, which can directly adapt to the subsequent assembly operation related to the first mounting hole, without the need to adjust the overall posture of the watch case, thereby reducing time consumption in the process connection, ensuring the alignment accuracy of the mounting hole and the subsequent assembly mechanism, and avoiding assembly failure caused by hole position deviation.

[0033] In an embodiment of the present application, the first button includes a first key body and a spring, please refer to Figure 15 , step S20 includes: Step S210: control the first shell overturning mechanism to align the jacking mechanism, so that the first mounting hole is aligned with the first key body of the jacking mechanism; Step S220: control the jacking mechanism to drive the first button to be assembled to the watch case through the first mounting hole; Step S230: control the first shell overturning mechanism to align the spring pushing mechanism, so that the first key body is aligned with the spring of the spring pushing mechanism; Step S240: control the spring pushing mechanism to drive the spring to be assembled to the first key body through the first mounting hole, so that the first button and the watch case are assembled.

[0034] Step S210 is a pre-alignment link for assembling the first key body and the watch case, and the core is to realize the position alignment of the first mounting hole of the watch case and the first key body on the jacking mechanism through the accurate action of the first shell overturning mechanism. The first shell overturning mechanism relies on the cooperation of the overturning part and the rotating part: the overturning part can fine-tune the overall height and inclination angle of the watch case, and the rotating part drives the watch case to rotate circumferentially around its own axis, and the two cooperate to move the watch case in the clamped state to the top of the jacking mechanism, so that the axis of the first mounting hole of the watch case is completely coincided with the axis of the first key body on the jacking mechanism. In this process, the alignment accuracy is guaranteed by the servo drive control of the mechanism, avoiding the eccentricity or skew of the first mounting hole and the first key body, and clearing the position obstacle for the subsequent smooth insertion of the first key body into the mounting hole.

[0035] Step S220 is the core of the first key body embedded in the watch case. Through the stable driving force provided by the jacking mechanism, the preliminary assembly of the first key body and the watch case is completed. The lifting end of the jacking mechanism pre-carries and positions the first key body. After receiving the alignment completion signal, the jacking drive member such as a servo cylinder or a pneumatic cylinder is started, driving the lifting end to smoothly rise along the first mounting hole axis direction, pushing the first key body into the first mounting hole of the watch case at a preset speed and thrust. Until the preset assembly position of the first key body is in close contact with the inner wall of the watch case, the jacking mechanism stops working. At this time, the first key body is preliminarily fixed to the watch case, leaving enough axial space for subsequent snap spring assembly.

[0036] Step S230 is the alignment transition link of the snap spring and the first key body assembly. Through the transfer and posture adjustment of the first shell overturning mechanism, the precise alignment of the watch case with the preliminarily assembled first key body and the snap spring on the pushing mechanism is realized. The first shell overturning mechanism drives the rotating part and the overturning part clamping the watch case to work, transferring the watch case from the jacking mechanism station to the pushing mechanism station, keeping the posture of the watch case stable in the process. After reaching the pushing mechanism station, the rotating part can fine-tune the circumferential angle of the watch case, and the overturning part can fine-tune the horizontal position of the watch case, so that the snap spring assembly groove axis of the first key body in the watch case is completely consistent with the pushing path of the snap spring on the pushing mechanism, ensuring that the snap spring can be accurately pushed to the assembly position along the straight line.

[0037] Step S240 is the final link of the first key assembly. Through the flat pushing action of the snap spring pushing mechanism, the fixation of the snap spring and the first key body is completed, and the complete assembly of the first key and the watch case is finally realized. The snap spring limiting part of the snap spring pushing mechanism pre-carries and positions the snap spring (the correct posture of the snap spring is ensured by the groove or adsorption structure), and after receiving the alignment completion signal, the flat pushing drive member (such as a pneumatic sliding table or an electric push rod) is started, driving the snap spring limiting part to move smoothly along the horizontal direction, pushing the snap spring into the snap spring assembly groove of the first key body through the first mounting hole of the watch case. After the snap spring enters the assembly groove, it will realize the axial positioning with the first key body through its elastic deformation, preventing the first key body from falling out of the first mounting hole of the watch case. Thus, the first key composed of the first key body and the snap spring is stably assembled with the watch case, meeting the structural requirements of the subsequent torsional adjustment function.

[0038] In an embodiment of the present application, please refer to Figure 16 , the second shell overturning mechanism includes an overturning part and a rotating part, and the rotating part is fixedly arranged on the overturning part. Step S30 includes: Step S310: controlling the rotating part to obtain a watch case in a flat posture; Step S320: controlling the overturning part to rotate in a first preset rotation direction, so that the watch case is switched from the flat posture to the vertical posture; Step S330: Control the rotating part to rotate in a third preset rotation direction, so that the watch case enters the second pre-assembly posture from the vertical posture, in which the insertion port of the second mounting hole faces away from the base.

[0039] Step S310 is the initial step of the second shell turning mechanism adjusting the posture of the watch case. The core is realized by the clamping function of the rotating part to stably grab and fix the watch case in a flat posture. The flat posture refers to the axis of the second mounting hole of the watch case being parallel to the surface of the base, such as the initial state when the watch case is transported to the designated station by the conveying module. The rotating part, as the core clamping component of the second shell turning mechanism, has an openable and closable clamping structure (such as a jaw that fits the inner or outer circumferential surface of the watch case). Under the trigger of the control signal, the jaw of the rotating part will accurately position according to the shape characteristics of the watch case (such as the inner circumferential wall curvature and the outer circumferential size). The watch case is clamped by a preset clamping force to ensure that the watch case does not have relative displacement with the rotating part during subsequent turning and rotating, providing a stable bearing basis for subsequent posture switching.

[0040] Step S320 is a key step for the watch case to convert from the initial placement posture to the assembly adaptation posture. The overall spatial posture of the watch case is changed by the directional rotation of the turning part. The first preset rotation direction is a trajectory preset based on the requirement that the watch case needs to be converted from flat to vertical (such as clockwise or counterclockwise rotation around the rotation axis of the turning part). The turning part is driven by a servo motor or other driving components to rotate smoothly in the first preset rotation direction. The rotation angle can be accurately controlled to ensure that the watch case is switched from the flat posture of the second mounting hole axis being parallel to the base to the vertical posture of the second mounting hole axis intersecting (such as perpendicular) with the surface of the base. Since the rotating part is fixed to the turning part, the rotating part will move synchronously with the turning part, thereby driving the clamped watch case to complete the posture conversion. The rotation speed of the turning part can be adjusted during the entire process to avoid the watch case from shaking or deviating due to inertia.

[0041] Step S330 is to realize the directional alignment of the second mounting hole of the watch case by fine rotation of the rotating part based on the vertical posture, and finally achieve the second pre-assembly posture for adapting to the assembly of the second key. The third preset rotation direction is a circumferential rotation trajectory preset based on the target that the insertion port of the second mounting hole needs to face away from the base. The rotating part drives the watch case to make circumferential fine adjustment in the third preset rotation direction under the drive of a special driving assembly. The rotation accuracy can be controlled within ≤0.1° to ensure that the insertion port of the second mounting hole can be accurately turned and completely face away from the base in the vertical posture of the watch case. When the insertion port of the second mounting hole faces away from the base, the watch case enters the second pre-assembly posture, which can directly adapt to the action of the subsequent key body lowering mechanism without additional adjustment of the overall posture of the watch case. This not only reduces the process connection time, but also ensures the alignment accuracy of the second mounting hole and the subsequent assembly components (such as the second key body), avoiding key body assembly jamming or structural damage due to hole deviation.

[0042] In an embodiment of the present application, the second key comprises a second key body and a screw; please refer to Figure 17 , step S40 comprises: Step S410: control the second shell overturning mechanism and the key body lowering mechanism to assemble the second key body to the watch case through the second mounting hole; Step S420: control the third shell overturning mechanism and the screw feeding mechanism to assemble the screw to the second key body through the second mounting hole, so that the second key, the key support and the watch case are limitedly matched.

[0043] Step S410 is the core link of the preliminary assembly of the second key body and the watch case. Through the cooperative action of the second shell overturning mechanism and the key body lowering mechanism, the second key body is accurately embedded into the second mounting hole of the watch case. Before this, the second shell overturning mechanism has adjusted the watch case to a second pre-assembly posture (the second mounting hole is inserted into the port facing away from the base), on this basis, the second shell overturning mechanism keeps the posture of the watch case stable through the fine adjustment of the overturning part and the rotating part thereof, and ensures that the second mounting hole is always in the opposite position of the key body lowering mechanism; the lifting end of the key body lowering mechanism fixes the second key body in advance through a profiling jig or vacuum adsorption, after receiving the alignment signal, the lifting end stably descends in the direction towards the base, so as to push the second key body into the second mounting hole of the watch case at a preset speed and thrust, until the preset limiting structure of the second key body preliminarily adheres to the inner wall of the watch case, and the preliminary assembly of the second key body and the watch case is completed, leaving a cooperation space with the key support for subsequent screw fixing.

[0044] Step S420 is the finishing link of the assembly of the second key. Through the cooperation of the third shell overturning mechanism and the screw feeding mechanism, the screw is fixed and the limited matching of the three is achieved. First, the third shell overturning mechanism clamps the watch case through the locking part, wherein the locking part can be misaligned with the second key body and the key support, so as to overturn the watch case from the second pre-assembly posture to the screw assembly adaptive posture, and at the same time, the watch case is transferred to the watch case fixing tool and the positioning is completed, so as to avoid the displacement of the watch case during the screw assembly; then, the screw feeding mechanism selects qualified screws through the vibration disc, and the screws are conveyed to the electric screwdriver bit through the feeding pipe, the bit adsorbs the screws, and then aligns the second mounting hole, and pushes forward along the axial direction and screws the screws into the threaded holes of the second key body and the key support at a preset torque. After the screw is tightened, the fixing of the second key body and the key support is realized, and through the preset cooperation structure of the key support and the watch case, the stable limited matching of the second key, the key support and the watch case is formed, so as to meet the functional requirements of the subsequent pressing operation.

[0045] In an embodiment of the present application, please refer to Figure 18 , step S410 comprises: Step S4110: control the second shell overturning mechanism to align the key body drop mechanism, so that the second mounting hole is aligned with the second key body of the key body drop mechanism; Step S4120: control the key body drop mechanism to drive the second key body to be assembled to the watch case through the second mounting hole.

[0046] Step S4110 is the alignment step of the assembly of the second key body and the watch case. The core is to realize the alignment of the second mounting hole of the watch case and the position of the second key body of the key body drop mechanism through the accurate action of the second shell overturning mechanism. The second shell overturning mechanism cooperates with the overturning part and the rotating part: the overturning part can finely adjust the overall height and the inclination angle of the watch case, so as to ensure that the spatial position of the watch case is adapted to the lifting end of the key body drop mechanism; the rotating part drives the watch case to rotate circumferentially around the axis of the watch case, so as to accurately adjust the angle of the watch case, so that the axis of the second mounting hole of the watch case is completely coincident with the axis of the second key body on the key body drop mechanism. In this process, the alignment accuracy is ensured by the servo drive control of the mechanism, so as to avoid the eccentricity and skew of the second mounting hole and the second key body, to clear the position obstacles for the subsequent insertion of the second key body into the mounting hole, and to ensure the accuracy of the assembly starting point.

[0047] Step S4120 is the execution step of embedding the second key body into the watch case. The stable driving force provided by the key body drop mechanism is used to complete the preliminary assembly of the second key body and the watch case. The lifting end of the key body drop mechanism carries and positions the second key body in advance through the profiling jig or the limiting structure. After receiving the alignment completion signal, the driving part of the key body drop mechanism is started, drives the lifting end to stably descend along the axis direction of the second mounting hole, and pushes the second key body into the second mounting hole of the watch case at a preset speed and a preset pushing force. Until the preset assembly position of the second key body is attached to the inner wall of the watch case, the key body drop mechanism stops moving. At this time, the second key body is preliminarily fixed in the first mounting hole of the watch case, and the axial and circumferential space is reserved for the subsequent screw assembly, so as to complete the preliminary assembly of the second key body and the watch case.

[0048] In an embodiment of the present application, the watch case assembly line body further comprises a watch case fixing tool; please refer to Figure 19 , step S420 comprises: Step S4210: control the third shell overturning mechanism to drive the watch case to enter the third pre-assembly posture; Step S4220: control the watch case fixing tool to obtain the watch case in the third pre-assembly posture, and drive the watch case to switch to the screw upper shell posture; Step S4230: control the screw feeding mechanism to assemble the screw to the key support and the second key.

[0049] Step S4210 is a key step for posture preparation for subsequent screw assembly. The core is to adjust the watch case with the second key body preliminarily assembled to a third pre-assembly posture suitable for the watch case fixing tool to grab and subsequent screw assembly through the action of the third case overturning mechanism. The third case overturning mechanism has an overturning part and a locking part. The locking part first abuts against the inner circumferential surface of the watch case through the openable and closable locking member (offset from the second key body and the key support to avoid touching the assembled components) to realize stable clamping of the watch case. Then, the overturning part rotates along a preset trajectory under the driving of the driving component to switch the watch case from the initial posture after the second key body assembly to the third pre-assembly posture. This posture needs to meet the grabbing requirements of the watch case fixing tool, for example, the positioning reference surface of the watch case faces the bearing direction of the watch case fixing tool, and at the same time, the screw holes of the second key body and the key support are in a state convenient for subsequent fine adjustment to the screw assembly position, laying a foundation for the watch case fixing tool to accurately obtain the watch case.

[0050] Step S4220 is a core step of realizing accurate positioning and posture conversion of the watch case. Through the dual action of grabbing and fixing by the watch case fixing tool and posture fine adjustment, accurate posture is provided for screw assembly. First, the watch case bearing part of the watch case fixing tool accurately receives the watch case according to the shape characteristics of the watch case in the third pre-assembly posture through the positioning pin or vacuum suction structure, and at the same time, the openable and closable locking members of the watch case locking part approach each other to abut against the inner circumferential surface of the watch case and apply a constant clamping force to ensure that the watch case does not displace in the tool. Then, the watch case locking part is driven to rotate or translate the watch case around a preset axis under the driving of a driving assembly such as a linear module or a rotary air cylinder to switch the watch case from the third pre-assembly posture to a screw feeding posture. In this posture, the screw holes of the second key body and the key support are completely aligned, and the screw holes face the direction of the bit of the screw feeding mechanism (such as perpendicular to the bit axis), ensuring that the screw can be accurately screwed into the screw hole in a straight line direction, avoiding the problem of screw slipping or not being assembled in place due to hole position deviation.

[0051] Step S4230 is the final step of realizing the final fixation of the second key and the watch case and the key support. Screw assembly and three-way limiting cooperation are completed through the automatic action of the screw feeding mechanism. The screw feeding mechanism first selects qualified screws through the vibrating disc, and then feeds the screws to the electric screwdriver bit in the "head facing forward" posture through the feeding pipe. After the bit is magnetically attracted to fix the screw, it is moved to the front of the screw hole under the driving of the driving component and advances along the screw hole axis direction. When the screw contacts the screw hole, the electric screwdriver starts the tightening action, which can use a torque sensor to monitor the tightening torque in real time. When the preset torque is reached, the screw feeding mechanism automatically stops and reverses for a preset number of turns to prevent the screw from being stuck. After the screw is completely screwed in, the bit is separated from the screw, and the assembly is completed. At this time, the screw connects the key support and the second key body, so that the second key cannot axially move, the key support forms a circumferential limiting for the second key, and finally realizes the stable limiting cooperation of "second key-key support-watch case", meeting the functional requirements of subsequent pressing operation.

[0052] In an embodiment of the present application, the watch case fixing tool comprises a watch case carrier and a watch case locking part; please refer to Figure 20 , step S4220 comprises: Step S42210: control the third shell turning mechanism to align the watch case carrier; Step S42220: control the watch case carrier to obtain the watch case in the third pre-assembly posture; Step S42230: control the watch case locking part to adjust the posture of the watch case, so that the watch case switches to the screw-on case posture.

[0053] Step S42210 is a pre-alignment link for the transfer of the watch case from the third shell turning mechanism to the watch case fixing tool. The core is to realize the position alignment of the watch case and the watch case fixing tool through the precise action of the third shell turning mechanism. The third shell turning mechanism relies on the cooperative operation of its turning part and locking part: the turning part drives the locking part clamping the watch case to move along the preset trajectory, adjusting the overall spatial position of the watch case; the locking part keeps stable clamping of the watch case to avoid deviation of the watch case during alignment. Finally, the positioning reference of the watch case in the third pre-assembly posture completely matches the preset docking position of the watch case carrier of the watch case fixing tool, ensuring that the watch case can be accurately placed into the watch case carrier, and avoiding the watch case from being bumped or subsequent posture adjustment difficulty due to alignment deviation.

[0054] Step S42220 is an execution link for the transfer of the watch case from the third shell turning mechanism to the watch case fixing tool. The watch case taking station serves as a transition station between the two, and completes the reception and preliminary positioning of the watch case through the preset grabbing or receiving structure. After the alignment of the third shell turning mechanism and the watch case fixing tool is completed, the execution component of the watch case carrier (such as pneumatic clamps, vacuum suction cups, and misaligned assembled components adapted to the shape of the watch case) starts to grab the watch case in the third pre-assembly posture from the locking part of the third shell turning mechanism; after grabbing, the execution component starts to ensure that the watch case in the third pre-assembly posture can be stably fixed in the watch case carrier, providing a basis for subsequent locking and posture switching.

[0055] Step S42230 is the core link of the watch case posture conversion from the third pre-assembly posture to the screw assembly adaptive posture, and the precise locking and posture fine adjustment of the watch case are realized through the watch case locking part of the watch case fixing tool. First, at least two openable locking parts of the watch case locking part are started, and the watch case locking part is locked on the watch case bearing part by applying a constant clamping force, thereby offsetting the reaction force during subsequent posture adjustment and screw assembly; then, the watch case locking part is driven by a driving assembly (such as a lead screw mechanism driven by a servo motor or a rotary cylinder) to drive the watch case to make a circumferential fine adjustment or translation along a specific direction around a preset axis, thereby gradually adjusting the angle and position of the watch case until the screw hole axis of the second key body and the key support on the watch case is completely aligned, and the screw hole is directed to the direction of the bit of the screw feeding mechanism (such as the screw hole axis and the bit axis are collinear), at this time, the watch case is formally switched to the screw feeding posture, which provides the optimal posture condition for the subsequent precise assembly of the screw.

[0056] Hereinafter, the structure of the shell assembly line is explained.

[0057] Please refer to Figures 1 to 11 The watch case assembly line comprises: A base 10, the base 10 is provided with a first assembly unit 11, a second assembly unit and a conveying module 14; The first assembly unit 11 is configured to assemble the first key body and the spring to the first mounting hole of the watch case; The second assembly unit is configured to sequentially assemble the second key body 2 to the second mounting hole of the watch case, and assemble the screw to the key support to assemble with the second key body 2; The conveying module 14 is configured to convey the watch case between the first assembly unit 11 and the second assembly unit.

[0058] The watch case assembly line provided by the application is used for assembling a watch case and a key assembly. The watch case comprises a first mounting hole and a second mounting hole, and the watch case is provided with a key support outside the second mounting hole. The key assembly comprises a first key and a second key. The first key comprises a first key body and a spring, and the second key comprises a second key body and a screw. The first key and the second key 2 are two different types of keys. For example, the first key is a circular key, which is usually twisted, and the first key is a square key, which is usually pressed. Users control the smart wearable device to realize different functions by applying different actions to different keys.

[0059] It can be understood that the watch case assembly line body has the most basic feeding unit 15 and discharging unit 16, the feeding unit 15 provides a watch case which has not been assembled with a key support or a watch case pre-assembled with a key support, and the discharging unit 16 is used for storing or transferring the watch case assembled with the key. Between the feeding unit 15 and the discharging unit 16, the first assembly unit 11 and the second assembly unit are arranged, wherein the watch case assembly line body can be an assembly process of the feeding unit 15 to the first assembly unit 11 to the second assembly unit, or an assembly process of the feeding unit 15 to the second assembly unit to the first assembly unit 11, which is not limited in the application.

[0060] It needs to be explained that when the feeding unit 15 provides a watch case which has not been assembled with a key support, the watch case assembly line body can first complete the assembly of the first key, and then assemble the key support in an artificial manner, and the watch case is conveyed into the second assembly unit by the conveying module 14 to assemble the second key. When the feeding unit 15 provides a watch case pre-assembled with a key support, the assembly of the second key can be completed first, and the watch case is conveyed into the first assembly unit 11 by the conveying module 14 to assemble the first key.

[0061] Specifically, the base 10 refers to a rigid frame structure carrying various functional modules, which can be realized by a welded steel structure or a numerically controlled machined aluminum profile frame, and provides a stable mounting reference for the assembly unit. The first assembly unit 11 refers to a special workstation for performing the assembly of the first key, which can be realized by a multi-axis mechanical arm cooperating with a visual positioning system to ensure the coaxiality of the first key body and the mounting hole. The second assembly unit refers to a special workstation for performing the assembly of the second key, which can be realized by a servo press-fitting mechanism cooperating with a spring pre-tightening device to accurately control the spring compression stroke. The conveying module 14 refers to a material conveying system, which can be one of a conveying belt 141, a shuttle car, a guide rail 142 or a combination of multiple conveying devices, which is not limited herein.

[0062] The conveying module 14 is distributed in the base 10, which has two core functions: the first core function is to realize the flow of the watch case between different units, such as between the first assembly unit 11 and the second assembly unit, and between the feeding unit 15 and the first assembly unit 11; the second core function is to realize the flow of the watch case between different stations of any unit, for example, in the first assembly unit 11, the first assembly unit 11 at least has a watch case taking station, a key top lifting station, and a flat spring pushing station. First, the watch case is conveyed from the previous unit to the watch case taking station of the first assembly unit 11 under the action of the conveying module 14. In the watch case taking station, the watch case can be taken down and fixed using a mechanical arm, a first case overturning mechanism 111, and other equipment. Then, under the sliding of the mover of the guide rail 142, it enters the key top lifting station, and the insertion of the first key body is completed in the key top lifting station. In summary, the conveying module 14 distributed in multiple positions of the base 10 plays the role of connecting the assembly actions of the watch case assembly line, so that each assembly action is no longer independent and the assembly of the watch case and the key is completed in an orderly manner.

[0063] In the first assembly unit 11, the first key body can be introduced into the first mounting hole of the watch case through a mechanical arm, a directional pushing mechanism, or other devices. Then, the flat spring is pressed into the watch case, so that the flat spring, the first key body, and the watch case form an integral whole. The second assembly unit performs two processes. First, the key body is embedded. The second key body 2 is grabbed by a mechanical arm or adsorbed by a vacuum chuck, an electrostatic adsorption device, or other devices. Then, the second key body 2 is inserted into the second mounting hole from top to bottom in the vertical direction. An electric screwdriver (with a torque sensor) moves to the bracket screw hole position, and the screw is screwed into the key body bottom thread hole and the bracket hole, thereby realizing the fixed assembly of the key bracket, the second key body, and the watch case.

[0064] In the technical solution, the watch case assembly line realizes the full automation of the assembly of the watch case and the key assembly through the first assembly unit 11, the second assembly unit, and the conveying module 14 integrated by the base 10. For the assembly of the first key body and the flat spring with the first mounting hole of the watch case, and the assembly of the second key body 2 and the screw with the second mounting hole of the watch case and the key bracket, the first and second assembly units respectively complete precise operations, avoiding problems such as assembly position deviation and uneven force that easily occur during manual operation, effectively reducing product defects caused by human errors, thereby improving the product yield rate and solving the bottleneck of yield rate fluctuation in manual assembly in the background technology. At the same time, the conveying module 14 can automatically convey the watch case between the first assembly unit 11 and the second assembly unit, without the need for manual transportation and station switching. The operation efficiency of each assembly unit is much higher than that of manual assembly, which can realize continuous and large-scale assembly operations, greatly improve the overall product processing efficiency, meet the demand for large-scale production of smartwatches, and make up for the defects of low efficiency and difficulty in adapting to mass production in manual assembly in the background technology.

[0065] In an embodiment of the present application, the first assembly unit 11 comprises a first case overturning mechanism 111, a jacking mechanism 112, and a spring push mechanism 113. The first case overturning mechanism 111 is configured to overturn and rotate the watch case so that the first mounting hole of the watch case is aligned with the lifting end of the jacking mechanism 112; the jacking mechanism 112 is configured to drive the first key body at the lifting end to move upward so as to assemble the first key body to the first mounting hole of the watch case; The spring push mechanism 113 is configured to push the spring into the watch case so as to assemble the spring with the first key.

[0066] In the present embodiment, the first assembly unit 11 integrates the first case overturning mechanism 111, the jacking mechanism 112, and the spring push mechanism 113 to form a standardized automatic assembly process for the key assembly. First, the first case overturning mechanism 111 overturns and rotates the watch case to achieve accurate alignment of the first mounting hole with the lifting end of the jacking mechanism 112. Compared with manual adjustment of the posture of the watch case, the mechanism can control the hole alignment deviation within a high-precision range by mechanical limiting and driving control, such as a servo motor driving a rotating shaft, to ensure that the first key body / second key can be inserted along the axis direction of the mounting hole, avoiding hole wall scratches or key jamming caused by skewing, and ensuring accuracy from the beginning of assembly. Second, the jacking mechanism 112 carries and jacks the first key body through the lifting end, replacing the manual pressing action. The driving force provided by the air cylinder or servo cylinder can be accurately set, and different driving forces can be provided for different key types, for example, the jacking force for a small mass first key body is set to 5-8 N, and the jacking force for a large mass first key body is set to 10-15 N, which can ensure that the key is completely inserted into the mounting hole, avoid assembly misplacement caused by insufficient manual pressing force, prevent key or watch case deformation caused by excessive torque, and solve the problem of uneven manual operation force. After the first key is assembled, the watch case can move towards the spring push mechanism 113 under the action of the conveying module 14, so that the spring push mechanism 113 assembles the spring with the key through a flat pushing action. The spring push mechanism 113 can also move towards the first case overturning mechanism 111, which is not limited again. Compared with manual installation of the spring using tweezers and other tools, the mechanism can constrain the posture of the spring through limiting structure and push the spring into the watch case with constant pushing force or linearly changing pushing force, ensuring accurate circumferential or axial positioning of the spring and the key, and avoiding the risk of key falling caused by loose spring.

[0067] In an embodiment, the first shell overturning mechanism 111 is composed of a multi-stage rotary joint and a clamping mechanism at the free end of the multi-stage rotary joint, the multi-stage rotary joint realizing switching of different postures of the watch case, and the clamping mechanism being used for taking out and clamping the outer surface of the watch case from the tray; the jacking mechanism 112 is composed of a jacking drive, a guide assembly and a positioning jig, the jacking drive 1121 providing lifting power, the guide assembly ensuring the straightness of the lifting movement, for example, by the cooperation of a linear slide rail and a slide block, and the positioning jig being designed to have a profiling groove according to the outer shape of the first key body to realize accurate limiting and positioning of the key.

[0068] In another embodiment, the jacking mechanism 112 includes a jacking drive 1121, a workpiece carrier 1122, a guide 1124 and a key carrier 1123, the workpiece carrier 1122 being fixed on the surface of the base 10, the guide 1124 being located on the side of the workpiece carrier 1122 away from the surface of the base 10 in a posture perpendicular to the surface of the base 10, the extension direction of the guide 1124 being perpendicular to the surface of the base 10, the workpiece carrier 1122 being movably arranged through the guide 1124, the jacking drive 1121 being arranged between the workpiece carrier 1122 and the key carrier 1123, the lifting end of the jacking drive 1121 being connected to the key carrier 1123, the first key body being arranged on the carrying surface of the key carrier 1123, under the action of the jacking drive 1121, the first key body being capable of being inserted into the corresponding first mounting hole of the watch case, thereby realizing the assembly between the watch case and the first key body; in this embodiment, the first shell overturning mechanism 111 with the watch case is capable of reaching above the workpiece carrier 1122 under the action of the conveying module 14, it can be known that the watch case can be rotated before the first shell overturning mechanism 111 reaches above the workpiece carrier 1122, so that the mounting hole of the watch case is aligned with the corresponding key, or the watch case can be overturned after the first shell overturning mechanism 111 reaches above the workpiece carrier 1122, so that the mounting hole of the watch case is aligned with the corresponding key, which is not limited here.

[0069] In another embodiment, the pushing mechanism includes a flat pushing drive 1131 and a clasp limiting piece 1132, the clasp limiting piece 1132 being connected to the movable end of the flat pushing drive 1131; the flat pushing drive 1131 is configured to drive the clasp limiting piece 1132 to translate towards the watch case, so that the clasp is assembled with the first key body.

[0070] The flat push driving part 1131 refers to an execution element capable of generating linear motion power, and can be implemented by an electric push rod or a pneumatic slide table. The flat push driving part 1131 provides accurate translational driving force for the snap spring limiting part 1132. The snap spring limiting part 1132 refers to a mechanical component with a guide groove or a positioning structure, and can be implemented by a limiting block with a V-shaped groove. The snap spring limiting part 1132 physically constrains the snap spring and guides the movement of the snap spring along a set path, so as to ensure the accurate alignment of the snap spring and the assembly position of the key.

[0071] In the first assembly unit 11, the base 10 is provided with a snap spring warehouse and a snap spring taking robot near the pushing mechanism. Before the snap spring pushing mechanism 113 and the first shell overturning mechanism 111 are aligned, the snap spring taking robot takes the snap spring from the snap spring warehouse and assembles the snap spring to the snap spring limiting part 1132. Through the automatic process, the problem of missing watch cases can be avoided.

[0072] Specifically, in the snap spring assembly process, the snap spring limiting part 1132 fixes the initial position of the snap spring through the guide groove. After the flat push driving part 1131 is started, the snap spring limiting part 1132 is stably moved in the horizontal direction. When the snap spring limiting part 1132 moves to the edge of the mounting hole of the watch case, the snap spring is pushed into the first key body under the guidance of the limiting part, and the mechanical locking of the snap spring and the first key body is completed. In this process, the translation path of the snap spring limiting part 1132 remains unchanged with the axis of the watch case mounting hole, so as to avoid the deflection or inclination of the snap spring during assembly.

[0073] In an embodiment of the present application, the base 10 is provided with a watch case taking station, a key lifting station and a snap spring flat pushing station in the first assembly unit 11. The first shell overturning mechanism 111 is arranged corresponding to the watch case taking station, the lifting mechanism 112 is arranged corresponding to the key lifting station, and the snap spring flat pushing station is arranged corresponding to the snap spring pushing mechanism 113. The conveying module 14 is further configured to convey the watch case between the watch case taking station, the key lifting station and the snap spring flat pushing station.

[0074] In the embodiment, by setting the watch case taking station, the key lifting station, and the clasp spring pushing station in the first assembly unit 11, and making the first case overturning mechanism 111, the lifting mechanism 112, and the clasp spring pushing mechanism 113 correspond to each station one by one, and relying on the conveying module 14 to realize the circulation of the watch case between the stations, an automatic assembly system with clear division of labor and collaborative linkage is constructed. First, the watch case taking station serves as the starting point of assembly, and only bears the tasks of grabbing the watch case and adjusting the initial posture. The first case overturning mechanism 111 does not need to consider the subsequent key assembly action, and can focus on the stable clamping and posture calibration of the watch case after taking the material from the tray, avoiding the action interference caused by function combination, and ensuring that the watch case does not fall off or be damaged during the grabbing process. The key lifting station focuses on the alignment and assembly of the key and the watch case mounting hole, and the lifting mechanism 112 does not need to consider the previous taking and placing of the watch case, and only needs to accurately control the lifting track of the key, to ensure that the key can be smoothly inserted along the axis of the mounting hole, and avoid alignment deviation caused by too many action considerations. The clasp spring pushing station is responsible for the cooperation and fixation of the clasp spring and the key, and the clasp spring pushing mechanism 113 can focus on the posture maintenance and pushing path control of the clasp spring, to prevent the clasp spring from deviating or deforming during assembly. This specialized division of labor makes the function of each mechanism more focused, greatly reduces the operation error of a single mechanism due to bearing multiple tasks, and improves the assembly accuracy from the source. The automatic circulation of the watch case between the stations driven by the conveying module 14 completely replaces the link of manually transferring the watch case, bringing double advantages. On the one hand, mechanical circulation can ensure the position accuracy of the watch case during transfer between stations, avoid the deviation of the watch case reference caused by hand shaking and placement deviation during manual handling, ensure that the mounting hole can be accurately aligned with the corresponding mechanism when the watch case enters the next station, and reduce the process time without additional posture adjustment. On the other hand, automatic circulation can realize the beat coordination of each station, and the transfer speed of the watch case can be dynamically matched according to the assembly time of each station, to avoid the accumulation of watch cases or the stagnation of no watch cases for assembly at a certain station, make the production process of the entire assembly unit more coherent, and greatly improve the overall assembly efficiency.

[0075] In an embodiment of the present application, the second assembly unit comprises a key body feeding subunit 12 and a screw feeding subunit 13, the key body feeding subunit 12 is connected with the screw feeding subunit 13, and the conveying module 14 is further configured to convey the watch case from the key body feeding subunit 12 to the screw feeding subunit 13; the key body feeding subunit 12 comprises a second case overturning mechanism 121 and a key body lowering mechanism 122, the screw feeding subunit 13 comprises a third case overturning mechanism 131, a watch case fixing tool 132, and a screw feeding mechanism 133; the second case overturning mechanism 121 is configured to overturn and rotate the watch case so that the second mounting hole of the watch case is opposite to the lifting end of the key body lowering mechanism 122, the key body lowering mechanism 122 is configured to drive the second key body 2 located at the lifting end to be assembled to the second mounting hole of the watch case, the third case overturning mechanism 131 is configured to receive the watch case and convey it to the watch case fixing tool 132, the watch case fixing tool 132 is configured to switch the watch case to a screw feeding posture, and the screw feeding mechanism 133 is configured to assemble a screw to the key support to be assembled with the second key body 2.

[0076] In the present embodiment, the second case overturning mechanism 121 is a core component for realizing accurate adjustment of the posture of the watch case, and can be composed of a multi-stage rotary joint and a clamping mechanism. The core function thereof is to adjust the posture of the watch case after receiving the watch case conveyed by the conveying module 14 through mechanical action, so that the second mounting hole of the watch case is opposite to the lifting end of the key body lowering mechanism 122. The multi-stage rotary joint is driven by a servo motor, and can realize overturning (such as from a horizontal posture to a vertical posture) and fine adjustment of the watch case (rotation angle accuracy ≤0.1°), so as to ensure that the coaxiality error between the second mounting hole and the positioning structure of the key body lowering mechanism 122 is within an acceptable error range; the clamping mechanism fixes the watch case through a constant clamping force of 6-10 N, which prevents the watch case from falling off and avoids pressing the surface coating or structure of the watch case, and always keeps the posture of the watch case stable until the key body embedding process is completed. The key body lowering mechanism 122 is responsible for smoothly embedding the second key body 2 into the second mounting hole of the watch case, and can be composed of a lowering driving member such as a servo air cylinder, a linear motor, a guide assembly such as a linear slide rail combined with a sliding block, and a key body positioning jig. The key body positioning jig fixes the second key body 2 through a profiling groove and vacuum adsorption, preventing the key body from deviating or falling off; the guide assembly ensures the straightness of the jig during lifting, avoiding the key body from being embedded obliquely; the servo air cylinder can accurately control the lowering speed and thrust, which can ensure that the key body is completely embedded into the hole and prevent the key body or the watch case from being deformed due to excessive torque, and after the embedding is completed, the jig releases the vacuum and resets, waiting for the next operation. The third shell overturning mechanism 131 undertakes the dual tasks of watch case transfer and preliminary attitude adjustment, and is structurally continued with the multi-stage rotary joint and clamping mechanism design, but the function is more focused on "linking" and "adaptability". Its core function is to receive the watch case embedded with the second key body 2 from the conveying module 14, quickly grab it, and drive the watch case to complete the second overturning, so that the screw hole of the key support is consistent with the direction of the electric screwdriver bit of the screw feeding mechanism 133, providing a precise torque transmission path for subsequent screw locking, while ensuring that the watch case attitude does not deviate during transfer, avoiding screw hole misalignment. The watch case fixing tool 132 is a key guarantee for the stability of the watch case during screw locking, and is designed for "anti-torque" requirements, with multi-point clamping and precise positioning functions. When the third shell overturning mechanism 131 places the watch case into the tool, the tool applies clamping force through multiple movable clamps and barb structures to offset the counter-torque during screw locking and prevent the watch case from rotating with the screwdriver.

[0077] The screw feeding mechanism 133 is responsible for screw selection, feeding, and precise locking, and can be composed of screws, a feeding tube, and an electric screwdriver. The screws are screened out by vibration to remove defective screws, and the qualified screws are sorted in the "head forward" attitude and blown into the bit through the feeding tube; the electric screwdriver fixes the screw through magnetic attraction, moves to the front of the screw hole, and then advances axially. When the tightening action is started, the torque sensor monitors the torque in real time, and stops automatically when the set value is reached and reverses for a preset number of turns. If the torque is abnormal, an alarm is triggered to ensure the quality of screw locking. When the watch case enters the second assembly unit, it is first grabbed by the second shell overturning mechanism 121 of the key body feeding subunit 12 from the conveying module 14, the attitude is adjusted so that the second mounting hole is directly opposite the lifting end of the key body lowering mechanism 122, and then the positioning jig of the key body lowering mechanism 122 is driven by a servo cylinder to smoothly descend along the guide assembly, and the second key body 2 is embedded in the second mounting hole at a set speed and pushing force. After the key body is embedded, the watch case is transferred to the screw feeding subunit 13 by the conveying module 14, the third shell overturning mechanism 131 quickly grabs the watch case and overturns it to the posture suitable for screw feeding, and places it into the watch case fixing tool 132, which fixes the watch case through multi-point clamping and positioning pins. Then the screw feeding mechanism 133 selects and feeds the screws to the electric screwdriver bit, the bit adsorbs the screw, and then aligns the screw hole, starts the tightening action, and the torque sensor monitors and ensures the locking quality. After the screw assembly is completed, the watch case fixing tool 132 releases the clamps, the third shell overturning mechanism 131 sends the watch case back to the conveying module 14, and transfers it to the next link. The whole process is realized through the precise cooperation of each mechanism, achieving automatic and high-precision assembly of the second key.

[0078] In an embodiment of the present application, the first and second shell overturning mechanisms 111 and 121 each include a first overturning portion 1111 and a rotating portion 1112, the rotating portion 1112 is fixedly arranged on the first overturning portion 1111, and the rotating portion 1112 is configured to fix the watch case; the first overturning portion 1111 is used to overturn the watch case, so as to switch the watch case from the flat posture to the first vertical posture, and the rotating portion 1112 is used to rotate the watch case, so as to make the insertion port of the first mounting hole face the jacking mechanism 112 or the insertion port of the second mounting hole face the key body lowering mechanism 122 in the first vertical posture.

[0079] In the embodiment, the first and second shell overturning mechanisms 111 and 121 each include a first fixed portion 1114, a first rotating shaft 1113, a first overturning portion 1111, a rotating portion 1112, and a driving member, the first fixed portion 1114 not only provides a fixed basis for other components of the two shell overturning mechanisms, but also fixedly connects the conveying module 14, so as to realize the circulation of the watch case between different workstations; specifically, the first fixed portion 1114 can be spliced by multiple sheet metal parts, or be a separate component, and is connected with different structures by means of grooves, holes, protrusions and the like; the first fixed portion 1114 is provided with a shaft hole, the first rotating shaft 1113 is inserted into the shaft hole of the fixed portion, the first overturning portion 1111 is connected with the first rotating shaft 1113, and when the driving member operates, the first rotating shaft 1113 drives the first overturning portion 1111 to overturn, so as to switch the watch case from the flat posture to the first vertical posture, i.e., from the state shown in FIG. 6A to the state shown in FIG. 6B. Figure 3 Figure 4 At this time, the axes of the first and second mounting holes of the watch case change from the parallel relationship to the intersecting relationship with the surface of the base 10, and then the rotating portion 1112 drives the shell to rotate by a preset angle or feeds back the rotation angle through the positioning camera, so as to make the insertion ports of the first and second mounting holes face the first or second key body, so that the first or second key body can be inserted into the corresponding mounting hole, and the assembly of the key body and the watch dial is realized.

[0080] ​In an embodiment, the rotating part 1112 has two clamping arms that can approach and move away from each other, and the two clamping arms are inserted into the hollow area of the watch case at the same time and then cooperate with the inner peripheral wall of the watch case, so as to realize the fixation between the rotating part 1112 and the watch case, or the rotating part 1112 is designed to adapt to the specific shape and size of the watch case, so that the rotating part 1112 can extend into the hollow area of the watch case and then cooperate with the inner peripheral wall of the watch case, so as to realize the fixation between the rotating part 1112 and the watch case, or the rotating part 1112 has clamping arms acting on the outer peripheral surface of the watch case, so as to avoid structural interference when the first key body and the second key body 2 are inserted; the rotating part 1112 can rotate under the driving of the rotating motor, so as to realize the jacking mechanism 112 of the first assembly unit 11 or the key body lowering mechanism 122 of the second assembly unit in the alignment of the mounting hole of the watch case in the vertical posture.

[0081] It can be understood that the flat posture refers to the posture in which the axis of the first mounting hole or the second mounting hole of the watch case is parallel to the surface of the base 10, and the flat posture can be that the front surface of the watch case faces the surface of the base 10, or can be that the back surface of the watch case faces the surface of the base 10; the first vertical posture and the second vertical posture refer to the posture in which the axis of the first mounting hole or the second mounting hole of the watch case intersects with the surface of the base 10, and when the key is needed to be assembled, the rotation of the rotating part 1112 makes the axis of the first mounting hole or the second mounting hole perpendicular to the surface of the base 10 or forms a specific angle with the surface of the base 10, so as to facilitate the insertion of the key body.

[0082] In an embodiment of the present application, the third shell overturning mechanism 131 includes a second overturning part 1311 and a locking part 1312, and the locking part 1312 is arranged on the overturning part; the second overturning part 1311 is used for overturning the watch case, so as to switch the watch case from the flat posture to the second vertical posture, and the locking part 1312 has at least two locking members that can approach and move away from each other, and each locking member is configured to abut against the inner peripheral surface of the watch case and be positioned away from the second key body 2 and the key bracket.

[0083] In the embodiment, the third shell overturning mechanism 131 comprises a second fixing part 1314, a second rotating shaft 1313, a second overturning part 1311, a locking part 1312 and a driving piece. The second fixing part 1314 not only provides a fixing basis for other components of the third shell overturning mechanism 131, but also can be fixedly connected with the conveying module 14, so as to realize the circulation of the watch shell between different workstations. Specifically, the second fixing part 1314 can be spliced by a plurality of sheet metal parts, or be a separate component, and is connected with different structures by means of grooves, holes, protrusions and the like. The second fixing part 1314 is provided with a shaft hole, the second rotating shaft 1313 is inserted into the shaft hole of the second fixing part 1314, the locking part 1312 is connected with the second rotating shaft 1313, and when the driving piece operates, the second rotating shaft 1313 drives the second overturning part 1311 to overturn, so as to switch the watch shell from the flat posture to the second vertical posture.

[0084] For details, please refer to Figure 10 The locking part 1312 comprises four locking pieces which are arranged at intervals in the circumferential direction. In this way, when the watch shell is clamped, 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 shell to abut against the inner circumferential surface of the watch shell, and the other two aligned locking pieces are shorter to abut against the inner end surface of the watch shell. In this way, the plurality of locking pieces arranged at intervals can completely avoid the first key body, the second key body 2 and the key bracket, so as to avoid the posture change of the preassembled parts. It can be understood that in the subsequent screwing process, it is necessary to ensure the position degree between the screw holes on the watch shell and the bit of the screw feeding mechanism 133. Therefore, after the watch shell is conveyed to the watch shell fixing tool 132, a high-precision posture fine adjustment is still needed. Therefore, for the third shell overturning mechanism 131, it is only necessary to ensure that the watch shell can be placed on the watch shell fixing tool 132, and it is not necessary to set a rotating part 1112 for posture adjustment.

[0085] In an embodiment of the present application, the watch shell fixing tool 132 comprises a watch shell bearing piece and a watch shell locking part, and the watch shell locking part is arranged on the watch shell bearing piece. The watch shell locking part has at least two locking pieces which can approach and move away from each other. Each locking piece is configured to abut against the inner circumferential surface of the watch shell and be misaligned with the second key body 2 and the key bracket. The watch shell locking part is configured to switch the watch shell from the second vertical posture to the screw feeding posture.

[0086] In the embodiment, the watch case carrier 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 support surface, which is used to constrain the displacement of the watch case in the horizontal direction, and the locking member can be selected from a wedge block, a pneumatic clamping jaw or an electromagnetically driven sliding block, the moving path of which forms an included angle with the normal direction of the inner circumferential surface of the watch case, for example, the locking member is cut into the inner wall of the watch case at a preset angle, and the multi-point dynamic clamping is realized through the friction and structural limiting.

[0087] When the watch case is placed on the watch case carrier, the watch case carrier can fix the bottom surface of the watch case through vacuum suction, and then the two locking members are driven to move away from each other by the driving member such as a cylinder or a motor, so as to clamp the watch case. At the same time, during the movement of the locking member, at least a period of time will be in contact with the watch case, so that after the locking member is moved to the position, the posture of the watch case on the watch case carrier can be changed, so as to force the watch case to enter the screw feeding posture.

[0088] In an embodiment of the present application, please refer to Figure 8 , the screw feeding subunit 13 is provided with a watch case material taking station and a watch case locking station, the third shell overturning mechanism 131 is arranged corresponding to the watch case material taking station, and the screw feeding mechanism 133 is arranged corresponding to the watch case locking station; the screw feeding subunit 13 has a watch case butt joint state, in which the locking part 1312 is opposite to the locking surface of the watch case carrier.

[0089] In the embodiment, the third shell overturning mechanism 131 is arranged corresponding to the watch case material taking station, so that the watch case material taking station receives the watch case located on the third shell overturning mechanism 131, and the screw feeding mechanism 133 is arranged corresponding to the watch case locking station, so as to perform the screw feeding process; in this process, the watch case fixing tool 132 moves between the watch case material taking station and the watch case locking station, so as to realize the transfer of the watch case; wherein, when the watch case fixing tool 132 receives the watch case of the third shell overturning mechanism 131, the locking part 1312 of the third shell overturning mechanism 131 is opposite to the locking surface of the watch case carrier, so that when the watch case is transferred, the watch case in the second vertical posture can be prevented from changing the posture.

[0090] In an embodiment of the present application, the second shell overturning mechanism 121 further comprises a key body abutting part, which is fixedly arranged on the first overturning part 1111 and / or the rotating part 1112; the key body abutting part is configured to abut and limit the second key body 2 of the watch case.

[0091] In the embodiment, the key body abutting portion is protruded from the surface of the first turning portion 1111 and / or the rotating portion 1112, and when the rotating portion 1112 is clamped to the watch case, the key body abutting portion can abut against the second key body 2 limited on the watch case, because when the watch case needs to flow from the key body on the loading subunit 12 to the screw loading subunit 13, in order to facilitate the stable flow of the watch case, the watch case needs to flow in a flat posture, and the second key body on the watch case has not been locked by the screw, and the watch case is in the first vertical posture, therefore, the watch case needs to be switched from the first vertical posture to the flat posture, that is, the first turning portion 1111 is turned, and the second key body is easy to deviate or fall off in the turning process due to gravity or centrifugal force, therefore, by setting the key body abutting portion, the posture of the second key body 2 on the watch case can be always limited, and the position deviation of the second key body 2 relative to the key support in the turning process of the watch case is avoided; it can be understood that the key body abutting portion can be a protruding point structure, which limits the second key body 2 through a multi-point contact mode, or can be a plurality of L-shaped limiting blocks, so that part of the structure of the second key body 2 is clamped into the key body abutting portion, and the shape of the key body abutting portion is not limited.

[0092] The application also provides a wristband device assembly bus, which comprises all the watch case assembly lines described above and is used to realize the case assembly method described above. Specifically, the wristband device assembly bus comprises a watch case assembly line, a display screen assembly line, a watch dial assembly line, etc. The wristband device assembly bus is used to realize efficient and accurate assembly. The specific structure of the watch case assembly line is described above. The wristband device assembly bus adopts all the technical solutions of the above-mentioned embodiments, and at least has all the beneficial effects of the technical solutions of the above-mentioned embodiments, which will not be described here.

[0093] 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, the content of the specification and the drawings, 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 method for assembling a watch case and a button assembly, wherein the watch case includes a first mounting hole, a second mounting hole, and a button bracket, the button bracket is arranged in alignment with the second mounting hole, and the button assembly includes a first button and a second button, characterized in that: A case assembly line is provided, wherein the base of the case assembly line includes a first case flipping mechanism, a lifting mechanism, a retaining spring pushing mechanism, a second case flipping mechanism, a third case flipping mechanism, a key lowering mechanism, and a screw feeding mechanism; the case assembly method includes: controlling the first shell flipping mechanism to drive the watch case into a first pre-installed posture; Controlling the lifting mechanism and the clip pushing mechanism to assemble the first button to the watch case through the first mounting hole; controlling the second shell flipping mechanism to drive the watch case into a second pre-installed posture; Controlling the key body lowering mechanism, the third housing flipping mechanism, and the screw feeding mechanism to assemble the second key to the watch case through the second mounting hole, so that the second key, the key bracket, and the watch case are in limited position fit; The first button and the second button are assembled step by step during the assembly of the watch case.

2. The watch case assembly method according to claim 1, wherein: The step of controlling the first housing flipping mechanism to drive the watch case into the first pre-installation posture includes: controlling the first shell flipping mechanism to obtain the watch case in a flat position; The first shell flipping mechanism is controlled to drive the shell to move in a first preset direction, so that the watch case switches from the flat posture to the first pre-installed posture.

3. The watch case assembly method according to claim 2, wherein: The first shell flipping mechanism includes a flipping portion and a rotating portion, wherein the rotating portion is fixed to the flipping portion; the step of controlling the first shell flipping mechanism to drive the shell to move in a first preset direction so as to switch the watch case from the flat position to the first pre-installed position includes: Controlling the flip portion to rotate along a first preset rotation direction so that the watch case switches from a flat position to an upright position; The rotating portion is controlled to rotate along a second preset rotation direction so that the watch case enters the first pre-installed posture from an upright posture. In the first pre-installed posture, the insertion port of the first mounting hole faces the base.

4. The watch case assembly method according to claim 3, wherein: The first button includes a first key body and a retaining spring, and the step of controlling the lifting mechanism and the retaining spring pushing mechanism to assemble the first button to the watch case through the first mounting hole includes: Controlling the first housing flipping mechanism to align with the lifting mechanism so that the first mounting hole is aligned with the first key body of the lifting mechanism; Controlling the lifting mechanism to drive the first button to be assembled to the watch case through the first mounting hole; Controlling the first housing flipping mechanism to align with the clip spring pushing mechanism so that the first key body is aligned with the clip spring located at the clip spring pushing mechanism; The clamping spring pushing mechanism is controlled to drive the clamping spring to be assembled to the first key body through the first mounting hole, so that the first key is assembled with the watch case.

5. The watch case assembling method according to any one of claims 1 to 4, characterized in that: The second shell flipping mechanism includes a flipping portion and a rotating portion, and the rotating portion is fixed to the flipping portion. The step of controlling the second shell flipping mechanism to drive the watch case into the second pre-installed posture includes: controlling the rotating portion to obtain the watch case in a flat position; Controlling the flip portion to rotate along a first preset rotation direction so that the watch case switches from a flat position to an upright position; The rotating portion is controlled to rotate along a third preset rotation direction so that the watch case enters the second pre-installed posture from the upright posture. In the second pre-installed posture, the insertion port of the second mounting hole faces away from the base.

6. The watch case assembling method according to claim 5, wherein: The second button includes a second button body and a screw; the step of controlling the button body lowering mechanism, the third shell flipping mechanism, and the screw feeding mechanism to assemble the second button to the watch case through the second mounting hole so that the second button, the button bracket, and the watch case are limitedly matched includes: controlling the second housing flipping mechanism and the key body lowering mechanism to assemble the second key body to the watch case through the second mounting hole; The third shell flipping mechanism and the screw feeding mechanism are controlled to assemble the screw to the second key body through the second mounting hole, so that the second button, the button bracket and the watch case are limitedly matched.

7. The watch case assembling method according to claim 6, wherein: The step of controlling the second housing flipping mechanism and the key body lowering mechanism to assemble the second key body to the watch case through the second mounting hole includes: Controlling the second housing flipping mechanism to align with the key body lowering mechanism so that the second mounting hole is aligned with the second key body of the key body lowering mechanism; The key body lowering mechanism is controlled to drive the second key body to be assembled to the watch case through the second mounting hole.

8. The watch case assembling method according to claim 6, wherein: The housing assembly line further includes a watch case fixing tool; the step of controlling the third housing flipping mechanism and the screw feeding mechanism to assemble the screw to the second key body through the second mounting hole includes: Controlling the third housing flipping mechanism to drive the watch case into a third pre-installed posture; Controlling the watch case fixing tool to obtain the watch case in the third pre-installation posture, and driving the watch case to switch to the screw-on watch case posture; The screw feeding mechanism is controlled to assemble the screws to the button bracket and the second button.

9. The watch case assembling method according to claim 8, wherein: The watch case fixing tool comprises a watch case carrier and a watch case locking portion; the step of controlling the watch case fixing tool to obtain the watch case in the third pre-installation posture and driving the watch case to switch to the screw-on watch case posture comprises: Controlling the third housing flipping mechanism to align with the watch case bearing member; controlling the watch case carrier to obtain the watch case in the third pre-installed posture; The watch case locking portion is controlled to adjust the posture of the watch case so that the watch case switches to a screw-on case posture.

10. A wristband device assembly bus, characterized in that: The wristband device assembly bus includes a shell assembly line; the shell assembly line is used in the watch case assembly method according to any one of claims 1 to 9.

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