An automatic assembly mechanism and integrated assembly equipment for watch buckles

Abstract

This invention relates to the field of watch clasp assembly technology, specifically to an automatic assembly mechanism and integrated assembly equipment for watch clasps. The mechanism includes a worktable and a shifting mechanism. The shifting mechanism comprises a turntable, a C-shaped plate, a fixed plate, a movable plate, a rotating mechanism, and a clearance structure. The turntable has six assembly fixtures. The C-shaped plate has four mounting positions, which are sequentially installed counter-clockwise as a small spring assembly device, a visual inspection structure, a first feeding mechanism, and a second feeding mechanism. The fixed plate and movable plate are located at the notch in the C-shaped plate; the fixed plate is used to install the inner housing feeding assembly, and the movable plate is used to install the large spring assembly device. The rotating mechanism drives the C-shaped plate to rotate 60 degrees around the axis of the turntable. The clearance structure drives the movable plate away from the turntable. This invention, with its C-shaped plate, movable plate, rotating mechanism, and clearance structure, achieves rapid resumption of the assembly process after a supply interruption reset, ensuring assembly accuracy.

Description

Technical Field

[0001] This invention relates to the field of watch clasp assembly technology, specifically to an automatic watch clasp assembly mechanism, and also to an integrated assembly device. Background Technology

[0002] As a core connecting component for wearing a watch, the watch clasp has a precise structure and tiny parts. It typically includes key components such as an inner case, a large spring, and a small spring, requiring extremely high assembly precision to ensure smooth opening and closing and longevity. With the large-scale production in the watch industry, automated assembly mechanisms for watch clasps have gradually developed. These mechanisms automate the entire process from "inner case loading → large spring assembly → small spring assembly → quality inspection → material sorting and unloading," thereby improving production efficiency and product qualification rates.

[0003] Patent CN113601146B discloses a watch fastener assembly device, which includes a first assembly structure, a second assembly structure, a third assembly structure, and a fourth assembly structure. The first assembly structure is used to assemble a large spring and a small spring to the inner housing. The second assembly structure is used to assemble a rubber button and a button buckle to the fastener body. The third assembly structure is used to snap the inner housing onto the fastener body to form an intermediate component. The fourth assembly structure is used to connect the rotating shaft to the intermediate component to form the watch fastener. The assembly structures are connected to each other through a conveying structure.

[0004] Although the above solution can automate the assembly of watch buckles, the inner shell, as the basic load-bearing component of the buckle, is small in size and prone to burrs due to the limitations of mold processing precision. This may cause the inner shell feeding component to get stuck and interrupt the supply during the feeding process. To address this, the turntable is usually stopped and waited or the turntable is idled and skipped empty stations. However, stopping the turntable and waiting will cause subsequent assembly processing to be interrupted, while idling and skipping empty stations will cause the assembly mechanism of the subsequent station to perform an invalid "empty assembly" action. Summary of the Invention

[0005] To address the aforementioned issues, an automatic assembly mechanism for watch clasps is provided. By incorporating a C-shaped plate, a movable plate, a rotating mechanism, and an obstacle avoidance structure, the mechanism enables rapid restoration of the assembly process synchronization after a supply interruption and reset, ensuring assembly accuracy.

[0006] To address the problems of existing technologies, this invention provides an automatic assembly mechanism for watch clasps, including a worktable and a switching mechanism disposed between an inner housing feeding assembly, a large spring assembly device, a small spring assembly device, a vision inspection structure, a first unloading mechanism, and a second unloading mechanism. The switching mechanism includes a turntable, a C-shaped plate, a fixed plate, a movable plate, a rotating mechanism, and a clearance structure. Six assembly fixtures are arranged in a circular array around the turntable's axis. The C-shaped plate is coaxially disposed on the outer side of the turntable and has four mounting positions. The small spring assembly device, the vision inspection structure, the first unloading mechanism, and the second unloading mechanism are installed sequentially in a counter-clockwise order at the four mounting positions. The fixed plate and the movable plate are disposed at the notch of the C-shaped plate. The fixed plate is used to install the inner housing feeding assembly, and the movable plate is used to install the large spring assembly device. The rotating mechanism is used to drive the C-shaped plate to rotate 60 degrees around the axis of the turntable. The clearance structure is used to drive the movable plate away from the turntable.

[0007] Preferably, the rotating mechanism includes an annular support plate, multiple rotating support assemblies, and a rotating drive assembly; the annular support plate is connected to a C-shaped plate; the multiple rotating support assemblies are connected to the lower end of the annular support plate and reduce the resistance when the annular support plate rotates; the rotating drive assembly is used to drive the annular support plate to rotate around the axis of the turntable.

[0008] Preferably, the avoidance structure includes a movable block, a guide assembly, and a linkage rod; the movable block is connected to the movable plate; the guide assembly is used to limit the movement path of the movable block; both ends of the linkage rod are provided with a pivot, and the two pivots are respectively connected to the movable block and the C-shaped plate.

[0009] Preferably, the lower half of the annular support plate has a downwardly tapered section, and the rotating support assembly includes a V-shaped frame and two first rollers; the two ends of the V-shaped frame are located on both sides of the tapered section of the annular support plate; the two first rollers are connected to the V-shaped frame, and the first rollers are tangent to the side of the tapered section.

[0010] Preferably, the guide assembly includes at least two guide rods, which are parallel to each other, and the moving block is slidably connected to the two guide rods.

[0011] Preferably, the shifting mechanism further includes a balancing support structure, which includes an annular guide rail and multiple balancing support components; the annular guide rail is coaxially arranged with the turntable; the multiple balancing support components are equally spaced around the axis of the annular support plate, and the multiple balancing support components are used to keep the annular support plate and the C-shaped plate horizontal.

[0012] Preferably, the upper surface of the annular guide rail is smoothed, and the balance support assembly includes an L-shaped support arm and a second roller; one end of the L-shaped support arm is connected to the annular support plate; the second roller is connected to the other end of the L-shaped support arm, and the second roller abuts against the upper surface of the annular guide rail.

[0013] Preferably, the switching mechanism further includes a fixing mechanism, which includes two card holders and a snap-fit ​​fixing structure; both card holders are connected to the C-shaped plate, and the angle between the two card holders on the C-shaped plate is 60 degrees; the snap-fit ​​fixing structure is located on one side of the C-shaped plate, and the C-shaped plate is fixed when the snap-fit ​​fixing structure contacts the card holders.

[0014] Preferably, the snap-fit ​​fixing structure includes a fixed base, a telescopic snap block, and a linear actuator; the fixed base has a groove; the telescopic snap block is slidably disposed in the groove; the linear actuator is used to drive the telescopic snap block to slide along the groove.

[0015] An integrated assembly device includes an automatic assembly mechanism for a watch connector buckle.

[0016] The advantages of this invention compared to the prior art are:

[0017] 1. This invention includes a C-shaped plate, a movable plate, a rotating mechanism, and a clearance structure. When the inner shell feeding assembly experiences a supply interruption and the turntable stops rotating, the clearance structure drives the movable plate and the large spring assembly device away from the turntable, creating space for the C-shaped plate to rotate. Subsequently, the rotating mechanism drives the C-shaped plate to rotate 60 degrees clockwise, causing the small spring assembly device, the vision inspection structure, the first feeding mechanism, and the second feeding mechanism on the C-shaped plate to move forward one process simultaneously. When the supply is restored, the turntable rotates 60 degrees again, and simultaneously the rotating mechanism drives the C-shaped plate to rotate 60 degrees in the opposite direction to reset. The clearance structure drives the large spring assembly device to reset. Once the turntable rotates 60 degrees again, the large spring assembly device, the small spring assembly device, and the vision inspection structure can work synchronously, quickly restoring the synchronization of the assembly process. This achieves rapid restoration of the synchronization of the assembly process after a supply interruption reset, ensuring assembly accuracy.

[0018] 2. The present invention is provided with an annular support plate, a rotating support assembly and a rotating drive assembly. When the C-shaped plate rotates, it drives the annular support plate to rotate synchronously. The annular support plate and all the rotating support assemblies at the lower end form relative motion. The rotating support assembly converts the sliding friction between the annular support plate and the worktable into rolling friction, thereby reducing the resistance when the C-shaped plate rotates and avoiding the C-shaped plate from jamming or deviating from the rotation angle due to excessive resistance.

[0019] 3. This invention features a moving block, a guide assembly, and a linkage rod. When the C-shaped plate rotates clockwise, the linkage rod converts the circumferential force into a horizontal force that pushes the moving block, causing the movable plate and the large spring assembly to move away from the turntable. When the C-shaped plate rotates counterclockwise, the linkage rod converts the circumferential force into a horizontal force that pulls the moving block, thus resetting the movable plate. This eliminates the need for power components such as cylinders and motors for the obstacle avoidance structure, reducing the manufacturing cost and energy consumption of the equipment. Attached Figure Description

[0020] Figure 1 This is a perspective view of an integrated assembly device according to the present invention.

[0021] Figure 2 This is a perspective view of the shifting mechanism in an automatic assembly mechanism for a watch connector buckle according to the present invention.

[0022] Figure 3 This is a perspective view of the C-shaped plate, rotating mechanism, and balance support structure in an automatic assembly mechanism for a watch buckle according to the present invention.

[0023] Figure 4 This is a perspective view of the C-shaped plate, the annular support plate, the rotating support assembly, and the rotating drive assembly in an automatic assembly mechanism for a watch fastener according to the present invention.

[0024] Figure 5 This is a perspective view of the C-shaped plate, annular support plate, rotating support assembly, moving block, guide assembly and linkage rod in an automatic assembly mechanism for watch connecting buckles according to the present invention.

[0025] Figure 6 This is a perspective view of the annular support plate and the rotating support assembly in an automatic assembly mechanism for a watch fastener according to the present invention.

[0026] Figure 7 This is a perspective view of the annular support plate, rotating support assembly, annular guide rail, and balance support assembly in an automatic assembly mechanism for a watch buckle according to the present invention.

[0027] Figure 8 This is a perspective view of the annular support plate, annular guide rail, and balance support assembly in an automatic assembly mechanism for a watch buckle according to the present invention.

[0028] Figure 9 This is a perspective view of the C-shaped plate, the card holder, and the snap-fit ​​fixing structure in an automatic assembly mechanism for a watch connecting buckle according to the present invention.

[0029] Figure 10 This is a perspective view of the card holder and the card-connecting fixing structure in an automatic assembly mechanism for a watch connecting buckle according to the present invention.

[0030] The diagram is labeled as follows: 1. Workbench; 2. Changing mechanism; 21. Turntable; 211. Assembly fixture; 22. C-shaped plate; 221. Mounting position; 23. Fixed plate; 24. Movable plate; 25. Rotating mechanism; 251. Annular support plate; 252. Rotating support assembly; 2521. V-shaped frame; 2522. First roller; 253. Rotary drive assembly; 2531. Connecting ring; 2532. Internal gear ring; 2533. Gear; 2534. Rotary drive. 26. Alignment structure; 261. Moving block; 262. Guide assembly; 2621. Guide rod; 263. Linkage rod; 2631. Rotating shaft; 27. Balance support structure; 271. Circular guide rail; 272. Balance support assembly; 2721. L-shaped support arm; 2722. Second roller; 28. Fixing mechanism; 281. Card seat; 282. Snap-fit ​​fixing structure; 2821. Fixed seat; 2822. Telescopic card block; 2823. Linear actuator. Detailed Implementation

[0031] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figures 1 to 10 As shown: An automatic assembly mechanism for a watch clasp includes a worktable 1 and a shifting mechanism 2 disposed between an inner casing feeding assembly, a large spring assembly device, a small spring assembly device, a vision inspection structure, a first unloading mechanism, and a second unloading mechanism. The shifting mechanism 2 includes a turntable 21, a C-shaped plate 22, a fixed plate 23, a movable plate 24, a rotating mechanism 25, and a clearance structure 26. Six assembly fixtures 211 are arranged in a circular array around the turntable 21 along its own axis. The C-shaped plate 22 is coaxially disposed on the outer side of the turntable 21. The plate 22 has four mounting positions 221, which are used to install the small spring assembly device, the vision inspection structure, the first feeding mechanism, and the second feeding mechanism in a counterclockwise order. The fixed plate 23 and the movable plate 24 are located at the notch of the C-shaped plate 22. The fixed plate 23 is used to install the inner shell feeding assembly, and the movable plate 24 is used to install the large spring assembly device. The rotating mechanism 25 is used to drive the C-shaped plate 22 to rotate 60 degrees around the axis of the turntable 21. The avoidance structure 26 is used to drive the movable plate 24 away from the turntable 21.

[0033] The inner shell feeding assembly, the large spring assembly device, the small spring assembly device, the vision inspection structure, the first unloading mechanism, and the second unloading mechanism are all existing technologies. The first unloading mechanism is used to remove assembled products that meet the standards, and the second unloading mechanism is used to remove assembled products that do not meet the standards.

[0034] After the assembly mechanism is started, the turntable 21 rotates counterclockwise around its own axis in a preset rotation direction, with each rotation angle being 60 degrees (matching the annular array spacing of each assembly functional component). Each assembly functional component performs its work synchronously according to the workstation sequence. When the assembly fixture 211 rotates to directly below the inner shell loading component, the turntable 21 stops, and the inner shell loading component places the inner shell into the assembly fixture 211. The turntable 21 rotates another 60 degrees, and the assembly fixture 211 carrying the inner shell moves to the large spring assembly device station. The large spring assembly device starts and assembles the large spring into the inner shell. The turntable 21 continues to rotate 60 degrees, and the assembly fixture 211 carrying the "inner shell + large spring" moves to the small spring assembly device station. At the next stage, the small spring assembly device completes the assembly of the small springs. The turntable 21 then rotates 60 degrees, and the assembly fixture 211 carrying the semi-finished product arrives at the vision inspection structure station. The vision inspection structure inspects the assembly quality and records the qualified / unqualified status. The turntable 21 then rotates 60 degrees, and the assembly fixture 211 moves to the first unloading mechanism station. If the vision inspection determines that it is qualified, the first unloading mechanism removes the qualified product. The turntable 21 then rotates 60 degrees, and the assembly fixture 211 moves to the second unloading mechanism station. If the vision inspection determines that it is unqualified, the second unloading mechanism removes the unqualified product. After unloading is completed, the empty assembly fixture 211 continues to rotate with the turntable 21 and returns to the inner shell loading component station to enter the next cycle.

[0035] Due to the small size of the inner shell and the potential presence of burrs, the inner shell feeding assembly is prone to jamming and supply interruptions when feeding the assembly fixture 211. When the inner shell feeding assembly fails to successfully place the inner shell onto the assembly fixture 211, the turntable 21 stops rotating, leaving the empty assembly fixture 211 without an inner shell at the station of the inner shell feeding assembly, awaiting the resumption of inner shell feeding. To prevent other components from becoming idle due to the turntable 21 stopping, the rotating mechanism 25 is activated, driving the C-shaped plate 22 to rotate 60 degrees clockwise around the axis of the turntable 21. Simultaneously, the C-shaped plate 22 drives the avoidance structure 26 to activate during rotation. The avoidance structure 26 drives the movable plate 24 to move away from the turntable 21. The large spring assembly device installed on it is moved away from the turntable 21, making enough space for the C-shaped plate 22 to rotate. After the C-shaped plate 22 rotates, the small spring assembly device, vision inspection structure, first unloading mechanism, and second unloading mechanism installed on it all move forward one process step simultaneously (for example, the small spring assembly device moves from the original "small spring assembly station" to the original "large spring assembly station"). At this time, the small spring assembly device that has moved to the original "large spring assembly station" can assemble small springs on the semi-finished products that have completed large spring assembly. The vision inspection structure, first unloading mechanism, and second unloading mechanism can also perform inspection and unloading operations on the assembled products at the corresponding stations, realizing the "advance work" of related components without interruption of supply. After the shell supply problem is resolved and the material supply is restored, the inner shell feeding assembly immediately places the inner shell into the empty assembly fixture 211 that is currently at the inner shell feeding station. The turntable 21 restarts and rotates 60 degrees, moving the assembly fixture 211 carrying the inner shell to the large spring assembly station. Simultaneously, the rotating mechanism 25 drives the C-shaped plate 22 to rotate 60 degrees in the opposite direction to reset, and the components on the C-shaped plate 22 return to their initial positions. The clearance structure 26 drives the movable plate 24 to reset with the large spring assembly device. The large spring assembly device can then perform large spring assembly operations on the newly moved inner shell at this station. During this stage, the small spring assembly device and the vision inspection structure do not operate because there are no semi-finished products waiting to be processed at their respective stations. The first unloading machine... The second unloading mechanism continues to unload qualified / unqualified products based on the previous visual inspection results. When the turntable 21 rotates 60 degrees again, the assembly fixture 211 carrying the "inner shell + large spring" moves to the small spring assembly station, and the assembly fixture 211 carrying the "inner shell + large spring + small spring" moves to the visual inspection station. The large spring assembly device, the small spring assembly device, and the visual inspection structure start synchronously, and the assembly mechanism returns to the initial normal operation stage, cyclically performing assembly operations. The rotating mechanism 25 drives the C-shaped plate 22 to rotate 60 degrees, allowing the assembly stations of each functional component to be moved forward during the supply interruption, thereby achieving the synchronization of the assembly process quickly after the supply interruption is reset, and ensuring assembly accuracy.

[0036] Reference Figure 3 and Figure 4As shown: The rotating mechanism 25 includes an annular support plate 251, multiple rotating support assemblies 252 and a rotating drive assembly 253; the annular support plate 251 is connected to the C-shaped plate 22; the multiple rotating support assemblies 252 are connected to the lower end of the annular support plate 251 and reduce the resistance when the annular support plate 251 rotates; the rotating drive assembly 253 is used to drive the annular support plate 251 to rotate around the axis of the turntable 21.

[0037] Specifically, the rotary drive assembly 253 includes a connecting ring 2531, an internal gear ring 2532, a gear 2533, and a rotary driver 2534. The connecting ring 2531 is coaxial with and fixedly connected to the C-shaped plate 22. The internal gear ring 2532 is connected to the connecting ring 2531. The gear 2533 meshes with the internal gear ring 2532. The rotary driver 2534 is used to drive the gear 2533 to rotate.

[0038] When the inner shell feeding assembly experiences a supply interruption, the turntable 21 stops rotating, and the rotating mechanism 25 starts. The rotary driver 2534 in the rotary drive assembly 253 drives the gear 2533 to rotate. The gear 2533 drives the C-shaped plate 22 to rotate clockwise through the external gear ring and connecting ring 2531. Meanwhile, the clearance structure 26 drives the movable plate 24 to move the large spring assembly device away from the turntable 21. When the turntable 21 resumes rotation, the rotary driver 2534 drives the gear 2533 to rotate in the opposite direction. The gear 2533 drives the C-shaped plate 22 to rotate clockwise through the external gear ring and connecting ring 2531. Ring 2531 drives C-shaped plate 22 to rotate counterclockwise. During the clockwise and counterclockwise rotation of C-shaped plate 22, it drives the annular support plate 251 to rotate synchronously. During the rotation, the annular support plate 251 moves relative to all the rotating support components 252 at its lower end. The rotating support components 252 convert the sliding friction between the annular support plate 251 and the worktable 1 into rolling friction, thereby reducing the resistance when C-shaped plate 22 rotates and avoiding jamming and rotation angle deviation of C-shaped plate 22 due to excessive resistance.

[0039] Reference Figure 2 and Figure 5 As shown: The avoidance structure 26 includes a movable block 261, a guide component 262 and a linkage rod 263; the movable block 261 is connected to the movable plate 24; the guide component 262 is used to restrict the movement path of the movable block 261; both ends of the linkage rod 263 are respectively provided with a rotating shaft 2631, and the two rotating shafts 2631 are respectively connected to the movable block 261 and the C-shaped plate 22.

[0040] When the inner shell feeding assembly stops supplying material and the turntable 21 stops rotating, both the rotating mechanism 25 and the clearance structure 26 need to be activated. The rotation drive component 253 of the rotating mechanism 25 is activated, driving the C-shaped plate 22 to rotate clockwise around the axis of the turntable 21 (preset rotation angle 60 degrees). When the C-shaped plate 22 rotates, its outer side wall drives one end of the linkage rod 263 to move in a circular motion around the axis of the turntable 21 synchronously through the end pivot 2631. Since the length of the linkage rod 263 is fixed and the other end is hinged to the moving block 261 through the pivot 2631, the circumferential force generated by the rotation of the C-shaped plate 22 is converted into a horizontal force pushing the moving block 261 through the linkage rod 263. At this time, the moving block 261 is in the direction of the linkage rod 263. Under the action of thrust, it moves away from the turntable 21 in the direction defined by the guide component 262. When the inner shell feeding is restored and the turntable 21 starts to rotate, the rotary driver 2534 starts in the reverse direction, driving the C-shaped plate 22 to rotate counterclockwise (60 degrees in the reverse direction) around the axis of the turntable 21. Driven by the reverse rotation of the C-shaped plate 22, the linkage rod 263 converts the circumferential force into a horizontal force that pulls the moving block 261, so that the moving block 261 is reset. The avoidance structure 26 is linked to the C-shaped plate 22 through the hinge of the linkage rod 263, and directly uses the rotational power of the C-shaped plate 22 to drive the moving plate 24 to move. Therefore, there is no need to configure power components such as cylinders and motors for the avoidance structure 26, which reduces the manufacturing cost and energy consumption of the equipment.

[0041] Reference Figure 5 and Figure 6 As shown: The lower half of the annular support plate 251 has a tapered section that tapers downwards. The rotating support assembly 252 includes a V-shaped frame 2521 and two first rollers 2522. The two ends of the V-shaped frame 2521 are located on both sides of the tapered section of the annular support plate 251. The two first rollers 2522 are connected to the V-shaped frame 2521, and the first rollers 2522 are tangent to the side of the tapered section.

[0042] When the annular support plate 251 rotates, the conical part of the lower half of the annular support plate 251 rotates along with it around the axis. Since the first roller 2522 is tangent to the side of the conical part and can rotate freely, the friction generated by the rotation of the conical part will drive the two first rollers 2522 to rotate around their own axes respectively. The V-shaped frame 2521 is fixed on the worktable 1, and the support arms at both ends of it restrict the radial displacement of the first roller 2522, ensuring that the first roller 2522 always remains tangent to the side of the conical part. At the same time, the two first rollers 2522 apply reverse support forces from both sides of the conical part to counteract the radial sway that may be generated when the annular support plate 251 rotates, thereby avoiding the position offset caused by unstable support when the C-shaped plate 22 rotates, and improving the overall rotation accuracy.

[0043] Reference Figure 2 and Figure 5As shown: the guide assembly 262 includes at least two guide rods 2621, which are parallel to each other, and the moving block 261 is slidably connected to the two guide rods 2621.

[0044] When the assembly mechanism is in normal working condition, the avoidance structure 26 is in the reset state, and the moving block 261 is in the initial position of the guide rod 2621 (i.e., the side closer to the turntable 21). At this time, the guide rod 2621 forms an initial constraint on the moving block 261, restricting its displacement in a non-preset direction, and preparing for subsequent movement. When the linkage rod 263 pushes the moving block 261 to move away from the turntable 21, the moving block 261 slides along the axial direction of the guide rod 2621, while the two parallel guide rods 2621 support the moving block 261 from both sides, preventing the moving block 261 from tilting due to unilateral force. By forming a rigid constraint on the moving block 261 from both sides through the two parallel guide rods 2621, only the sliding degree of freedom of the moving block 261 in the preset direction is retained, thereby offsetting the offset force generated by the push or pull of the linkage rod 263 on the moving block 261.

[0045] Reference Figure 3 and Figure 7 As shown: The shifting mechanism 2 also includes a balance support structure 27, which includes an annular guide rail 271 and multiple balance support components 272; the annular guide rail 271 is coaxially arranged with the turntable 21; the multiple balance support components 272 are arranged at equal intervals around the axis of the annular support plate 251, and the multiple balance support components 272 are used to keep the annular support plate 251 and the C-shaped plate 22 horizontal.

[0046] The small spring assembly device, the vision inspection structure, the first unloading mechanism, and the second unloading mechanism are all installed on the C-shaped plate 22. Therefore, the rotating support assembly 252 at the lower end of the C-shaped plate 22 is subjected to a large gravity. When the assembly mechanism is working normally, the C-shaped plate 22 is in the initial working position. Multiple balance support assemblies 272 transfer part of the gravity of the annular support plate 251, the C-shaped plate 22, and the components it carries to the annular guide rail 271. The rotating support assembly 252, while maintaining radial stability, bears the remaining gravity, thereby preventing the first roller 2522 or the V-shaped frame 2521 from deforming due to the rotating support assembly 252 bearing too large a load alone.

[0047] Reference Figure 7 and Figure 8 As shown: The upper surface of the annular guide rail 271 is smoothed. The balance support assembly 272 includes an L-shaped support arm 2721 and a second roller 2722. One end of the L-shaped support arm 2721 is connected to the annular support plate 251. The second roller 2722 is connected to the other end of the L-shaped support arm 2721 and abuts against the upper surface of the annular guide rail 271.

[0048] When the annular support plate 251 is stationary, the L-shaped arms 2721 of the multiple balancing support components 272 remain stationary along with the annular support plate 251. The outer surface of the second roller 2722 abuts against the smooth upper surface of the annular guide rail 271. Through the rigid support of the L-shaped arms 2721, part of the weight of the annular support plate 251, the C-shaped plate 22, and the components it supports is transferred to the annular guide rail 271. At this time, the smooth upper surface of the annular guide rail 271 reduces the static friction between the second roller 2722 and the annular guide rail 271, avoiding the risk of adhesion caused by long-term static placement. When the annular support plate 251 rotates... The L-shaped support arm 2721, which is fixedly connected to it, moves in a circular motion around the axis of the turntable 21. Due to the rigid constraint of the L-shaped support arm 2721, the second roller 2722 always remains in contact with the upper surface of the guide rail and will not detach from the support surface. Furthermore, the driving force generated by the rotation of the annular support plate 251 drives the second roller 2722 to roll around its own axis. The smooth surface of the annular guide rail 271 greatly reduces the rolling friction coefficient between the second roller 2722 and the annular guide rail 271, thereby reducing the resistance of the annular support plate 251 to drive the balance support component 272 to rotate when it rotates, making the rotation smoother.

[0049] Reference Figure 2 and Figure 9 As shown: The switching mechanism 2 also includes a fixing mechanism 28, which includes two card holders 281 and a snap-fit ​​fixing structure 282; both card holders 281 are connected to the C-shaped plate 22, and the angle between the two card holders 281 on the C-shaped plate 22 is 60 degrees; the snap-fit ​​fixing structure 282 is set on one side of the C-shaped plate 22, and the C-shaped plate 22 is fixed when the snap-fit ​​fixing structure 282 contacts the card holders 281.

[0050] The two mounting brackets 281 are designated as mounting bracket 281A and mounting bracket 281B, respectively. When the assembly mechanism is operating normally, the C-shaped plate 22 is in its initial position. Mounting bracket 281A, corresponding to the initial position, remains stationary in front of the locking and fixing structure 282 along with the C-shaped plate 22. The locking and fixing structure 282 is in close contact with mounting bracket 281A, forming a mechanical engagement. The constraint force of this engagement restricts the rotational freedom of the C-shaped plate 22, fixing it in its initial position. When the C-shaped plate 22 needs to rotate, the locking and fixing structure 281B engages. Separated from the card holder 281A, the rotating mechanism 25 drives the C-shaped plate 22 to rotate counterclockwise by 60 degrees. The card holder 281B rotates to correspond with the snap-fit ​​fixing structure 282. The snap-fit ​​fixing structure 282 abuts against the card holder 281B, locking the position of the C-shaped plate 22 through mechanical constraint force. The position of the C-shaped plate 22 is locked by the fixing mechanism 28, thereby avoiding problems such as misalignment of small spring assembly, visual inspection lens offset, and misalignment of material feeding mechanism due to displacement of C-shaped plate 22, thus improving the assembly accuracy and product qualification rate of watch connecting buckle.

[0051] Reference Figure 9 and Figure 10 As shown: The snap-fit ​​fixing structure 282 includes a fixing base 2821, a telescopic snap block 2822 and a linear actuator 2823; the fixing base 2821 has a sliding groove; the telescopic snap block 2822 is slidably disposed in the sliding groove; the linear actuator 2823 is used to drive the telescopic snap block 2822 to slide along the sliding groove.

[0052] The linear actuator 2823 can be an electric push rod or a cylinder. When the card holder 281A corresponds to the snap-fit ​​fixing structure 282, the output shaft of the linear actuator 2823 extends along the direction close to the C-shaped plate 22, driving the telescopic card block 2822 fixedly connected to it to slide along the slide groove of the fixing seat 2821. Due to the constraint of the slide groove, the telescopic card block 2822 only moves in the horizontal direction without vertical or horizontal offset, so that the telescopic card block 2822 docks with the card holder 281A. When the card holder 281B rotates to correspond with the snap-fit ​​fixing structure 282, the linear actuator 2823 drives the telescopic card block 2822 to extend along the slide groove, and the telescopic card block 2822 docks with the card holder 281B, thereby realizing the fixation of the C-shaped plate 22 in two working states.

[0053] Reference Figure 1 The image shows an integrated assembly device, including an automatic assembly mechanism for a watch connector buckle.

[0054] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A watch connecting buckle automatic assembly mechanism, comprising a workbench (1) and a transposition mechanism (2) arranged among the inner shell loading assembly, the large spring assembly device, the small spring assembly device, the visual detection structure, the first unloading mechanism and the second unloading mechanism, characterized in that, The transposition mechanism (2) comprises a rotating disc (21), a C-shaped plate (22), a fixed plate (23), a movable plate (24), a rotating mechanism (25) and an avoiding structure (26); Six assembling jigs (211) are arranged in an annular array around the axis of the rotating disc (21); The C-shaped plate (22) is coaxially arranged outside the rotating disc (21), and four mounting positions (221) are arranged on the C-shaped plate (22), wherein the four mounting positions (221) are sequentially mounted with a small spring assembling device, a visual detection structure, a first blanking mechanism and a second blanking mechanism in an anticlockwise order; The fixed plate (23) and the movable plate (24) are arranged at the gap of the C-shaped plate (22), the fixed plate (23) is used for mounting an inner shell feeding assembly, and the movable plate (24) is used for mounting a large spring assembling device; The rotating mechanism (25) is used for driving the C-shaped plate (22) to rotate 60 degrees around the axis of the rotating disc (21); The avoiding structure (26) is used for driving the movable plate (24) to move away from the rotating disc (21); The rotating mechanism (25) comprises an annular support plate (251), a plurality of rotating support assemblies (252) and a rotary driving assembly (253); The annular support plate (251) is connected with the C-shaped plate (22); The plurality of rotating support assemblies (252) are connected with the lower end of the annular support plate (251) and reduce the resistance when the annular support plate (251) rotates; The rotary driving assembly (253) is used for driving the annular support plate (251) to rotate around the axis of the rotating disc (21); The avoiding structure (26) comprises a moving block (261), a guide assembly (262) and a linkage rod (263); The moving block (261) is connected with the movable plate (24); The guide assembly (262) is used for limiting the movement path of the moving block (261); Both ends of the linkage rod (263) are provided with rotating shafts (2631), and the two rotating shafts (2631) are respectively connected with the moving block (261) and the C-shaped plate (22).

2. The automatic assembling mechanism of a watch connecting buckle according to claim 1, characterized in that, The lower half of the annular support plate (251) is a tapered portion that shrinks downward, and the rotating support assembly (252) comprises a V-shaped frame (2521) and two first rollers (2522); Both ends of the V-shaped frame (2521) are located on the two sides of the tapered portion of the annular support plate (251); The two first rollers (2522) are connected with the V-shaped frame (2521), and the first rollers (2522) are tangent to the side surface of the tapered portion.

3. The automatic assembling mechanism of a watch connecting buckle according to claim 1, characterized in that, The guide assembly (262) comprises at least two guide rods (2621), the two guide rods (2621) are parallel to each other, and the moving block (261) is slidingly connected with the two guide rods (2621).

4. The automatic assembling mechanism of a watch connecting buckle according to claim 1, characterized in that, The transposition mechanism (2) further comprises a balance support structure (27), and the balance support structure (27) comprises an annular guide rail (271) and a plurality of balance support assemblies (272); The annular guide rail (271) is coaxially arranged with the rotating disc (21); The plurality of balance support assemblies (272) are arranged at equal intervals around the axis of the annular support plate (251), and the plurality of balance support assemblies (272) are used for keeping the annular support plate (251) and the C-shaped plate (22) horizontal.

5. The automatic assembling mechanism of a watch connecting buckle according to claim 4, characterized in that, The upper surface of the annular guide rail (271) is smooth, and the balance support assembly (272) comprises an L-shaped support arm (2721) and a second roller (2722); One end of the L-shaped support arm (2721) is connected with the annular support plate (251); The second roller (2722) is connected with the other end of the L-shaped support arm (2721), and the second roller (2722) is in abutment with the upper surface of the annular guide rail (271).

6. The automatic assembling mechanism of a watch connecting buckle according to claim 1, characterized in that, The transposition mechanism (2) further comprises a fixing mechanism (28), and the fixing mechanism (28) comprises two clamping seats (281) and a clamping fixing structure (282); The two clamping seats (281) are connected with the C-shaped plate (22), and the included angle between the two clamping seats (281) on the C-shaped plate (22) is 60 degrees; The clamping fixing structure (282) is arranged on one side of the C-shaped plate (22), and the C-shaped plate (22) is fixed when the clamping fixing structure (282) is in contact with the clamping seat (281).

7. The automatic assembly mechanism of a watch connecting buckle according to claim 6, characterized in that, The clamping fixing structure (282) comprises a fixing seat (2821), a telescopic clamping block (2822) and a linear driver (2823); The fixing seat (2821) is provided with a sliding groove; The telescopic clamping block (2822) is slidably arranged in the sliding groove; The linear driver (2823) is used for driving the telescopic clamping block (2822) to slide along the sliding groove.

8. An integrated assembly apparatus, characterized by The automatic assembling mechanism of the watch connecting buckle comprises the automatic assembling mechanism of the watch connecting buckle.

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