A kind of watch case square shell button upper shell assembly pneumatic device

By designing a pneumatic device that includes a worktable, positioning fixtures, and pressing mechanism, efficient, precise, and stable assembly of the watch case, square case, button, and upper case was achieved. This solved the problems of low efficiency in manual operation and inaccurate positioning of simple tooling, thus improving watch production efficiency and quality.

CN224333874UActive Publication Date: 2026-06-09YINGTAI PRECISION MFG TECH (DONGGUAN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YINGTAI PRECISION MFG TECH (DONGGUAN) CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-09

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Abstract

The utility model relates to the field of watch case processing technology, concretely to a watch case square shell button upper shell assembly pneumatic device, and the device includes work head and sets up on the locating fixture, pneumatic mechanism and pressure equipment mechanism of work head, and the locating fixture includes base and the convex disc fixed in the base upper end face, is provided with the locating block and installs the pneumatic clamp jaw on the locating block on the convex disc, and the pneumatic mechanism includes the support station, and is fixed with pressure equipment cylinder on the support station, and the pressure equipment mechanism includes the pressure head and sets up the mould on the pressure head, and the pressure head is fixedly connected with the output end of pressure equipment cylinder. This watch case square shell button upper shell assembly pneumatic device, overcomes the equal defect such as the inaccuracy of positioning and pressure equipment strength of simple frock assembly, realizes efficient, accurate, stable plastic gasket assembly, improves the overall efficiency and quality of watch production, improves the assembly efficiency, guarantees the product quality stability, reduces the equipment investment and manpower cost.
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Description

Technical Field

[0001] This utility model relates to the field of watch case processing technology, specifically a pneumatic device for assembling a square watch case button shell. Background Technology

[0002] In the watch manufacturing industry, the assembly of the watch case, button housing, and plastic gasket is a crucial step, directly impacting watch quality and production efficiency. Currently, traditional assembly methods largely rely on manual labor, which has numerous drawbacks.

[0003] Currently, the pneumatic devices used for assembling the plastic gaskets on the square case button shell of watches are typically complex in structure and poorly designed. On one hand, manual operation is extremely inefficient and inaccurate; worker skill levels and fatigue lead to inconsistent assembly speeds, making it difficult to meet the demands of large-scale production. On the other hand, manual assembly introduces significant errors; differences in worker techniques result in inconsistent button feel, sealing, and other quality indicators after assembly, leading to a high defect rate. Furthermore, with rising labor costs, heavy reliance on manual assembly significantly increases watch costs. While some methods use simple tooling to assist assembly, these still suffer from inaccurate positioning and uneven pressing force, similarly affecting assembly quality and efficiency. Therefore, the inventor has improved the structure of the pneumatic device for assembling the square case button shell of watches. Utility Model Content

[0004] The purpose of this utility model is to provide a pneumatic device for assembling the square case, button, and upper case of a watch. It features a simple structure, reasonable design, higher assembly efficiency and precision, lower cost, and a high degree of automation. It overcomes the defects of simple tooling assembly, such as inaccurate positioning and uneven pressing force, achieving efficient, precise, and stable assembly of plastic gaskets. This improves the overall efficiency and quality of watch production, enhances assembly efficiency, ensures product quality stability, and reduces equipment investment and labor costs. It meets the urgent needs of the watch manufacturing industry for efficient, precise, low-cost, and flexible assembly equipment, satisfies the requirements of large-scale production, and solves the problems mentioned in the above-mentioned technical background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic device for assembling a square watch case and button upper shell. The device includes a worktable and a positioning fixture, a pneumatic mechanism, and a pressing mechanism mounted on the worktable. The worktable is made of high-strength metal, possessing sufficient stability and load-bearing capacity to provide stable support for the entire device, ensuring the smoothness of installation and operation of each component. The pressing mechanism is located between the positioning fixture and the pneumatic mechanism. The positioning fixture includes a base and a protruding plate fixed to the upper surface of the base. A positioning block and a pneumatic gripper mounted on the positioning block are provided on the protruding plate. The pneumatic gripper can quickly and stably clamp the watch case, while the positioning block ensures the accurate positioning of the watch case, thereby ensuring that the plastic gasket can be accurately installed in the corresponding position on the watch case. The pneumatic mechanism includes a support platform, on which a pressing cylinder is fixed. The pressing mechanism includes a pressing head and a mold mounted on the pressing head, with the pressing head fixedly connected to the output end of the pressing cylinder.

[0006] Preferably, both the base and the support platform are fixed to the upper surface of the workbench. The support platform has an L-shaped design and is used to support the press-fit cylinder.

[0007] Preferably, an air pipe is connected to the pressing cylinder, and the pressing cylinder is positioned above the pressing head. The air pipe is used to deliver air to the pressing cylinder. The pressing cylinder is made of a high-precision and high-reliability product, which can accurately control the stroke and speed to ensure the accuracy and stability of the pressing action. The pneumatic mechanism's air source provides compressed air, which is delivered to each pressing cylinder through the air pipe to provide power for the operation of the device.

[0008] Preferably, the pressure head is L-shaped and positioned above the pneumatic gripper; this allows the pressure head to move the watch case on the mold up and down, sending the watch case above the pneumatic gripper and having it fixed by the pneumatic gripper.

[0009] Preferably, the mold includes a chassis and a positioning post fixed on the chassis. The chassis is fixed to the press head, and a base is inserted into the positioning post, with the positioning post and the base being coaxially arranged.

[0010] Preferably, a fastener is provided at the end of the positioning post away from the chassis, wherein a locking block is fixed on the fastener and the locking block is inserted into the positioning post. By using the cooperation between the positioning post and the locking block, the watch case can be fixed on the mold, and the watch case is positioned between the base and the fastener.

[0011] Preferably, a number of positioning slots are provided on the base, and the positioning slots are evenly distributed on the outer wall of the base.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model provides a pneumatic device for assembling the upper shell of a watch case with buttons. The device includes a worktable and a positioning fixture, a pneumatic mechanism, and a pressing mechanism set on the worktable. The positioning fixture includes a base and a protruding plate fixed to the upper surface of the base. A positioning block and a pneumatic gripper mounted on the positioning block are provided on the protruding plate. The pneumatic gripper can quickly and stably clamp the watch case, while the positioning block ensures that the watch case is accurately positioned, thereby ensuring that the plastic gasket can be accurately installed in the corresponding position of the watch case. This overcomes the defects of inaccurate positioning and uneven pressing force in simple tooling assembly, and achieves efficient, accurate, and stable assembly of plastic gaskets, improving the overall efficiency and quality of watch production and meeting the needs of large-scale production.

[0014] The pneumatic mechanism of this utility model includes a support platform, on which a press-fit cylinder is fixed. The press-fit cylinder is a high-precision and high-reliability product, which can accurately control the stroke and speed of the movement, ensure the accuracy and stability of the press-fit action, and improve the degree of automation. The pressure and stroke of the press-fit cylinder can be adjusted according to different product requirements to adapt to the assembly of various specifications of case and gasket.

[0015] This invention enables rapid assembly of plastic gaskets for stainless steel watch cases, square case buttons, and upper case through a precise and portable adjustment method. This significantly shortens operation time, improves production efficiency, enhances assembly efficiency, ensures product quality stability, and reduces equipment investment and labor costs. The device's structural design guarantees stability and consistency during operation, reducing product quality issues caused by variations in manual operation. It solves the problems of low efficiency, poor precision, high cost, and low automation associated with manual assembly. Simultaneously, it overcomes the defects of inaccurate positioning and uneven pressing force inherent in simple tooling assembly, achieving efficient, precise, and stable plastic gasket assembly and improving product quality stability. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the positioning clamp and pneumatic mechanism of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged view of A in the middle;

[0019] Figure 4 This is one of the schematic diagrams of the pressing mechanism of this utility model;

[0020] Figure 5 This is the second schematic diagram of the pressing mechanism of this utility model;

[0021] Figure 6 This is a schematic diagram of the fastener and locking block of this utility model.

[0022] The reference numerals and names in the figure are as follows: 1. Workbench; 2. Positioning fixture; 21. Base; 22. Protruding plate; 23. Positioning block; 24. Pneumatic gripper; 3. Pneumatic mechanism; 31. Support platform; 32. Pressing cylinder; 33. Air pipe; 4. Pressing mechanism; 41. Press head; 42. Mold; 421. Chassis; 422. Positioning column; 423. Base; 4231. Positioning slot; 424. Fastener; 425. Locking block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0026] Please see Figure 1The present invention provides an embodiment of a pneumatic device for assembling a square case button shell, including a workbench 1 and a positioning fixture 2, a pneumatic mechanism 3 and a pressing mechanism 4 disposed on the workbench 1. The workbench 1 is made of high-strength metal material and has sufficient stability and load-bearing capacity to provide stable support for the entire device and ensure the stability of each component during installation and operation. The pressing mechanism 4 is disposed between the positioning fixture 2 and the pneumatic mechanism 3.

[0027] Please see Figure 2 The positioning fixture 2 includes a base 21, and the pneumatic mechanism 3 includes a support platform 31. Both the base 21 and the support platform 31 are fixed to the upper surface of the workbench 1. A pressing cylinder 32 is fixed on the support platform 31. The support platform 31 has an L-shaped design and is used to support the pressing cylinder 32. An air pipe 33 is connected to the pressing cylinder 32, and the pressing cylinder 32 is located above the pressing head 41. The air pipe 33 is used to deliver air to the pressing cylinder 32. The pressing cylinder 32 is a high-precision and high-reliability product, which can accurately control the stroke and speed of the movement to ensure the accuracy and stability of the pressing action. The air source of the pneumatic mechanism 3 provides compressed air, which is delivered to each pressing cylinder 32 through the air pipe 33 to provide power for the operation of the device. The air source of the pneumatic mechanism 3 is existing technology, and its structure will not be described in detail here.

[0028] Please see Figure 3 The positioning clamp 2 also includes a protruding plate 22 fixed to the upper surface of the base 21. A positioning block 23 and a pneumatic gripper 24 mounted on the positioning block 23 are provided on the protruding plate 22. The pneumatic gripper 24 can quickly and stably clamp the watch case, while the positioning block 23 ensures that the watch case is in the correct position, thereby ensuring that the plastic gasket can be accurately installed in the corresponding position of the watch case. The pneumatic gripper 24 is existing technology, and its structure will not be described in detail here.

[0029] Please see Figures 4 to 5The pressing mechanism 4 includes a pressing head 41 and a mold 42 mounted on the pressing head 41. The pressing head 41 is L-shaped and positioned above the pneumatic gripper 24. The pressing head 41 is fixedly connected to the output end of the pressing cylinder 32. Driven by the pneumatic system, the pressing cylinder 32 drives the pressing head 41 downward, accurately pressing the plastic pad onto the corresponding position of the stainless steel watch case square keypad through the mold 42. This causes the pressing head 41 to move the watch case on the mold 42 up and down, sending the watch case above the pneumatic gripper 24 for fixation. The mold 42 includes a base 421 and... A positioning post 422 is fixed on a chassis 421, which is fixed on a pressure head 41. A base 423 is inserted into the positioning post 422, and the positioning post 422 and the base 423 are coaxially arranged. A fastener 424 is provided at the end of the positioning post 422 away from the chassis 421. Several positioning slots 4231 are provided on the base 423. The several positioning slots 4231 are evenly distributed on the outer wall of the base 423, so that the design of the pressure head 41 and the mold 42 matches the shape of the case and the gasket, which can ensure that the gasket is subjected to uniform force during the pressing process and avoid damage or loose installation.

[0030] Please see Figure 6 A locking block 425 is fixed on the buckle 424. The locking block 425 is inserted into the positioning post 422. By using the cooperation between the positioning post 422 and the locking block 425, the watch case can be fixed on the mold 42, and the watch case is set between the base 423 and the buckle 424.

[0031] Working principle: Please refer to the following again. Figures 1 to 6 In the operation of this utility model, firstly, the various components are assembled according to the design requirements, ensuring that the workbench 1 is level and stable, all components are firmly connected, and the air pipes 33 are tightly connected without leakage. Then, the pneumatic mechanism 3 is adjusted. According to different watch case and gasket specifications, the pressure and stroke parameters of the pressing cylinder 32 are adjusted to achieve the optimal pressing force and position. At the same time, the stainless steel watch case, square case, and button upper case to be assembled are placed on the positioning block 23. The pneumatic gripper 24 is activated and quickly clamps the watch case, fixing it in the accurate position. Then, the plastic gasket is conveyed to the predetermined position aligned with the installation position on the watch case. The pressing cylinder 32 is driven to move downward, and the pressing head 41 accurately presses the plastic gasket onto the watch case through the mold 42. After pressing is completed, the pressing cylinder 32 drives the pressing head 41 back to the initial position, the pneumatic gripper 24 releases the watch case, and the operator removes the assembled watch case, completing one assembly process. The above operation is repeated thereafter. The equipment for conveying the plastic gasket and watch case is existing technology and will not be described in detail here.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pneumatic device for assembling a square case button upper shell of a watch, characterized in that, The device includes a workbench (1) and a positioning fixture (2), a pneumatic mechanism (3) and a pressing mechanism (4) set on the workbench (1). The pressing mechanism (4) is set between the positioning fixture (2) and the pneumatic mechanism (3). The positioning fixture (2) includes a base (21) and a protruding plate (22) fixed on the upper surface of the base (21). The protruding plate (22) is provided with a positioning block (23) and a pneumatic gripper (24) installed on the positioning block (23). The pneumatic mechanism (3) includes a support platform (31). A pressing cylinder (32) is fixed on the support platform (31). The pressing mechanism (4) includes a pressing head (41) and a mold (42) set on the pressing head (41). The pressing head (41) is fixedly connected to the output end of the pressing cylinder (32).

2. The pneumatic device for assembling the square case button upper shell of a watch case according to claim 1, characterized in that: The base (21) and the support platform (31) are both fixed to the upper surface of the workbench (1), and the support platform (31) is designed in an L shape.

3. The pneumatic device for assembling the square case button upper shell of a watch case according to claim 1, characterized in that: The press cylinder (32) is connected to an air pipe (33), and the press cylinder (32) is located above the press head (41).

4. The pneumatic device for assembling a square case button shell according to claim 1, characterized in that: The pressure head (41) is L-shaped and is positioned above the pneumatic gripper (24).

5. The pneumatic device for assembling a square case button shell according to claim 1, characterized in that: The mold (42) includes a chassis (421) and a positioning post (422) fixed on the chassis (421). The chassis (421) is fixed on the pressure head (41). A base (423) is inserted into the positioning post (422), and the positioning post (422) and the base (423) are coaxially arranged.

6. The pneumatic device for assembling the square case button upper shell of a watch case according to claim 5, characterized in that: The positioning post (422) is provided with a fastener (424) at one end away from the chassis (421), wherein a locking block (425) is fixed on the fastener (424) and the locking block (425) is inserted into the positioning post (422).

7. The pneumatic device for assembling a square case button upper shell according to claim 5, characterized in that: The base (423) is provided with a number of positioning slots (4231), which are evenly distributed on the outer wall of the base (423).