A golf club head structure and a laser coloration positioning tool

Abstract

The utility model discloses a golf club head structure, including the head of connecting in the shaft body end, and its surface profile is constituted by the joint splicing of the hitting face, the upper transition surface of back and the lower transition surface of back, and at least one of three faces is demarcated with the pattern area, and the PVD coating is covered on the pattern area at least on the head surface, and the PVD coating surface is made with the modification layer at the pattern area through the picosecond laser technology, and the utility model aims at overcoming the insufficient of prior art, and provides a golf club head structure of improving product aesthetic property and discernibility and a laser dazzling positioning frock with flexible structure and strong compatibility.

Description

Technical Field

[0001] This utility model specifically relates to a golf club head structure and a laser-guided color positioning fixture. Background Technology

[0002] As high-end sports equipment, golf clubs' appearance design not only affects the user experience but also plays a crucial role in brand recognition, market positioning, and consumer perception. In recent years, with consumers' increasing demands for product personalization and aesthetic value, how to endow clubheads with unique visual decorative effects while ensuring structural strength and hitting performance has become an important direction for industry research and development. Currently, common golf clubhead surface decoration processes mainly include spraying, electroplating, and ordinary physical vapor deposition (PVD) coatings. Among these, PVD coatings are widely used due to their high hardness, excellent wear resistance, and good decorative properties. However, traditional PVD coatings have limited color options and lack dynamic color variations, making it difficult to meet the high-end market's demand for differentiated appearances. To enhance visual appeal, some manufacturers have attempted laser engraving or chemical etching on the coating surface. However, these methods often suffer from problems such as large heat-affected zones, numerous edge burrs, and low precision in microstructure control. Especially on curved or slightly curved surfaces, it is difficult to form a uniform optical structure, resulting in unstable color effects or limited viewing angles.

[0003] Furthermore, while picosecond lasers, as an ultrashort pulse laser processing technology, have demonstrated advantages such as no thermal damage and high resolution in the field of precision micromachining, their application on complex free-form surfaces like golf club heads still faces challenges such as difficult positioning, complex attitude adjustment, and insufficient repeatability. Existing fixtures are mostly rigid fixed structures, unable to adapt to club heads with different curvatures or shapes, making it difficult for the laser beam to be perpendicularly incident on the processing area, severely affecting the forming quality of the microstructure and the consistency of optical interference effects.

[0004] This utility model was developed precisely because of the aforementioned shortcomings. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a golf club head structure that enhances the aesthetics and recognizability of the product, as well as a flexible and highly compatible laser-engraved positioning fixture.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model provides a golf club head structure, including a club head connected to the end of the shaft. Its surface profile is formed by splicing together a striking face, an upper back transition face, and a lower back transition face. At least one of the three faces has a patterned area. The club head surface is covered with a PVD coating at least on the patterned area. The PVD coating surface has a modified layer formed at the patterned area by picosecond laser technology.

[0008] In the golf club head structure described above, the surface of the club head where the patterned area is located is a curved surface, and the radius of curvature r of the curved surface is ≥30mm.

[0009] As described above, in the golf club head structure, the patterned area is defined on the striking face.

[0010] As described above, in the golf club head structure, the PVD coating covers at least the entire striking surface.

[0011] This utility model also provides a laser-guided positioning fixture for positioning and clamping the aforementioned club head. It includes a base and a movable seat mounted on the base. The base has a movable groove for placing the movable seat. The bottom of the movable groove has a first spherical surface. The movable seat has at least a second spherical surface at its lower part that matches the first spherical surface, allowing the movable seat to rotate along the spherical surface. A locking component is connected to the movable seat to lock the movable seat. The movable seat has a positioning groove for placing the club head and a clamping component for fixing the club head.

[0012] As described above, the laser color positioning fixture has at least two locking components distributed circumferentially. Each locking component includes a first operating member and a clamping block. The first operating member is connected to the base via a threaded structure and moves toward the movable seat when the first operating member is tightened.

[0013] As described above, the laser color positioning fixture has an upwardly extending support column on the base, the first operating component is connected to the upper part of the support column, and the clamping block is located at least above the center of the second spherical surface.

[0014] As described above, in the laser color positioning fixture, the end face of the clamping block near the movable seat is a third spherical surface that matches the second spherical sphere.

[0015] As described above, the laser color positioning fixture includes at least two clamping components distributed circumferentially. Each clamping component includes a slider, a push block, and a second operating member. The movable seat has a sliding groove for the slider to slide in. The second operating member is connected to the movable seat in the vertical direction via a threaded structure. The push block is sleeved on the second operating member. The second operating member has a stepped portion that pushes the push block downward when it moves downward. The slider has a first inclined surface, and the push block has a second inclined surface that matches the first inclined surface and pushes the slider toward the rod head when it moves downward.

[0016] As described above, in the laser-guided color positioning fixture, the sidewall of the positioning groove matches the shape of the rod head, and the slider matches the shape of the rod head on its end face facing the rod head.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. Achieve dynamic iridescent visual effects and enhance product aesthetics and brand recognition. By using picosecond laser technology to form a micro-modification layer with optical interference capabilities on the PVD coating surface, the patterned area presents rich and varied color effects under different viewing angles, significantly enhancing the decorative nature and brand recognition of golf club heads.

[0019] 2. Adapt to curved surface processing to ensure color uniformity and structural consistency. The pattern area is set on a curved surface with a curvature radius r≥30mm. Combined with high-precision laser technology, the impact of incident angle changes on processing quality is effectively reduced, ensuring that a uniform and stable microstructure can be formed on complex curved surfaces, avoiding color difference or uneven optical performance.

[0020] 3. The tooling structure is flexible and precise, compatible with high-efficiency processing of multiple club heads. The designed spherical laser color positioning tooling supports multi-degree-of-freedom fine adjustment and self-centering clamping, which can accurately match club heads with different curved shapes and ensure positioning accuracy during laser processing. At the same time, it can be adapted to different models of products by simply changing the movable seat, which greatly improves production flexibility and changeover efficiency.

[0021] 4. The advanced combination of processes balances functionality and aesthetics. The PVD coating provides excellent wear and corrosion resistance, while the picosecond laser modification layer gives the surface unique optical properties. The combination of the two achieves a high-end decorative effect without sacrificing the performance of the club head, meeting the dual needs of the high-end market for both function and aesthetics. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the golf club head of this utility model. Figure 1 ;

[0023] Figure 2This is a schematic diagram of the structure of the golf club head of this utility model. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the structure of the golf club head of this utility model. Figure 3 ;

[0025] Figure 4 This is a schematic diagram of the structure of the golf club head of this utility model. Figure 4 ;

[0026] Figure 5 This is a cross-sectional schematic diagram of the golf club head of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the laser color positioning fixture of this utility model;

[0028] Figure 7 This is a cross-sectional schematic diagram of the laser color positioning fixture of this utility model;

[0029] Figure 8 This is an exploded view of the laser color positioning fixture of this utility model. Detailed Implementation

[0030] The utility model will be further described below with reference to the accompanying drawings:

[0031] The orientations described in this utility model specification, such as "up," "down," "left," "right," "front," and "back," are based on the orientations in the accompanying drawings and are intended to facilitate the description of the relationships between the various components. They do not indicate the unique or absolute positional relationships between the various components, but are merely one embodiment of the utility model and are not a limitation on its implementation.

[0032] This embodiment describes a golf club head structure, such as... Figures 1 to 5 As shown, the clubhead 1, attached to the end of the shaft, has a surface profile formed by the joint of a striking face 11, an upper back transition surface 12, and a lower back transition surface 13. At least one of the three surfaces has a patterned area 100, and the surface of the clubhead 1 is covered with a PVD coating 14 at least over the patterned area 100. The PVD coating 14 has a modified layer 15 formed on its surface at the patterned area 100 using a picosecond laser process.

[0033] Among them, PVD coating 14 is an advanced surface treatment technology, which refers to the vaporization of metal or compound materials (target materials) in a vacuum environment through physical methods (such as evaporation, sputtering, or ion plating), causing them to be deposited on the workpiece surface in atomic or molecular form, forming a dense, highly adhesive, high-hardness, and excellent corrosion-resistant and decorative thin film coating. This technology has been widely used in the field of high-end sports equipment, and can be referenced in the patent scheme with patent number CN202121048412.4 and title "A Nanocomposite Anticorrosion Film and Its Application in Golf Club Heads".

[0034] Picosecond laser processing refers to an ultrashort pulse laser processing technology that instantly focuses extremely high laser energy onto a very small area of ​​a material within a picosecond time (1 picosecond = 10⁻¹² seconds). The term "picosecond" represents the extremely short duration of the laser pulse, allowing for precise microstructural processing of the PVD coating 14 surface with almost no heat-affected zone. This process forms a modified layer 15 at the patterned area 100, which undergoes selective material removal and physical / chemical property alteration. This modified layer 15 is not simply etched; rather, it is laser-induced to construct periodic or non-periodic microstructures (such as nanoscale bumps, trenches, or arrays of holes) on the material surface. These structures can interfere, diffract, or scatter with incident light, thus exhibiting a dynamically changing iridescent visual effect from different viewing angles, significantly enhancing the product's aesthetic value and recognizability.

[0035] As a preferred embodiment, the surface of the clubhead 1 where the patterned area 100 is located is curved, and the radius of curvature of the curved surface is greater than or equal to 30 mm. The patterned area 100 is positioned on a curved surface, which not only better conforms to ergonomics and swing visual habits but also helps to expand the effective viewing angle range. Simultaneously, the larger radius of curvature (r ≥ 30 mm) effectively reduces the gradient of the incident angle of the laser beam on the curved surface, ensuring uniform energy distribution of the picosecond laser during scanning. This allows for the fabrication of highly consistent and optically stable microstructures even on complex curved surfaces, avoiding uneven color or structural failure due to local focusing deviations.

[0036] As a preferred option, such as Figure 1 and Figure 2 As shown, the patterned area 100 is defined on the striking surface 11. This position is in the user's field of vision during the shot, best showcasing the decorative effect and brand recognition.

[0037] As one of the solutions, such as Figure 3 As shown, the PVD coating 14 only needs to cover the patterned area 100, which is suitable for partial decoration needs, saving material costs and simplifying the process; as another option, such as Figure 4As shown, the PVD coating 14 covers the entire striking surface 11, which can achieve a large-area color-changing effect while ensuring overall wear resistance; as another option, the PVD coating 14 can also cover the entire clubhead 1 to achieve integrated decoration and protection on the entire surface, thereby enhancing the overall texture and high-end feel of the product.

[0038] To achieve high-precision laser processing on curved and slightly curved surfaces, this embodiment also provides a dedicated positioning fixture, mainly used in the aforementioned laser iridescent process for processing the aforementioned golf club heads, such as... Figures 6 to 8 As shown, this fixture is used for positioning and clamping the aforementioned club head 1. The fixture includes a base 21 and a movable seat 22 mounted on the base 21. The base 21 has a movable groove 211 for placing the movable seat 22. The bottom of the movable groove 211 has a first spherical surface 212. The movable seat 22 has at least a second spherical surface 221 at its lower part that matches the first spherical surface 212, allowing the movable seat 22 to rotate freely along the spherical surface, thereby achieving multi-degree-of-freedom attitude adjustment. A locking assembly 23 is connected to the movable seat 22 to lock it. The movable seat 22 also has a positioning groove 222 for placing the club head 1 and a clamping assembly 24 for fixing the club head 1.

[0039] like Figure 8 As shown, at least two locking components 23 are provided and distributed circumferentially to provide symmetrical constraint force and prevent the movable seat 22 from deflecting during processing. The locking component 23 includes a first operating member 231 and a clamping block 232. The first operating member 231 is connected to the base 21 by a threaded structure, and when the first operating member 231 is tightened, its front end moves toward the movable seat 22, pushing the clamping block 232 to press against the second spherical surface 221, thereby achieving rigid locking.

[0040] like Figure 7 As shown, at least two clamping components 24 are provided and distributed circumferentially to ensure that the rod head 1 is subjected to balanced force and without deformation during clamping. The clamping component 24 includes a slider 241, a push block 242, and a second operating member 243. The movable seat 22 is provided with a sliding groove 223 for the slider 241 to slide. The second operating member 243 is connected to the movable seat 22 in the vertical direction by a threaded structure. The push block 242 is sleeved on the second operating member 243. The second operating member 243 has a stepped portion 244. When it moves downward, it can push the push block 242 downward synchronously through the stepped portion 244. The slider 241 is provided with a first inclined surface 245. The push block 242 is provided with a second inclined surface 246 that matches the first inclined surface 245. When the push block 242 moves downward, the vertical motion is converted into a horizontal thrust through the inclined surface cooperation, driving the slider 241 to move towards the center of the rod head 1, thereby achieving self-centering clamping.

[0041] The aforementioned tooling structure allows for fine-tuning of the spatial orientation of the rod head 1 after clamping, ensuring precise alignment of the surface to be processed with the laser optical axis. This effectively adapts to rod head products with different curvatures and shapes. This design not only improves the positioning accuracy and repeatability of laser processing but also significantly enhances process adaptability, making it particularly suitable for high-end customized production scenarios involving small batches and diverse product varieties.

[0042] As a preferred option, such as Figure 7 and Figure 8 As shown, the base 21 has an upwardly extending support column 213, the first operating member 231 is connected to the upper part of the support column 213, and the clamping block 232 is located at least above the center P of the second spherical surface 221. This arrangement ensures that the line of action of the clamping force passes through the vicinity of the center of the sphere, avoiding the generation of overturning moment, thereby significantly improving the overall stability and vibration resistance of the clamping system.

[0043] Preferably, the end face of the clamping block 232 near the movable seat 22 is a third spherical surface 233 that matches the second spherical surface 221. This spherical fit increases the contact area, disperses local stress, prevents indentation or slippage, and further ensures locking reliability.

[0044] Preferably, the sidewall of the positioning groove 222 matches the shape of the rod head 1, and the end face of the slider 241 facing the rod head 1 also matches the outline of the rod head 1, thereby achieving high-precision contour positioning and effectively suppressing displacement or shaking during processing. Furthermore, since the differences in the style of the rod head 1 are mainly reflected in its shape, and the core adaptable component of this fixture is the movable seat 22, when it is necessary to replace different models of the rod head 1, only the corresponding movable seat 22 needs to be replaced, without the need to redesign the entire fixture, significantly reducing changeover costs and debugging time, and improving production line flexibility.

[0045] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A golf club head structure, characterized in that: The clubhead (1) is attached to the end of the shaft. Its surface profile is formed by splicing together the hitting face (11), the upper back transition face (12) and the lower back transition face (13). At least one of the three faces is marked with a patterned area (100). The surface of the clubhead (1) is covered with a PVD coating (14) at least on the patterned area (100). The surface of the PVD coating (14) is modified with a layer (15) at the patterned area (100) by picosecond laser process.

2. The golf club head structure according to claim 1, characterized in that: The surface of the rod head (1) where the pattern area (100) is located is a curved surface, and the radius of curvature r of the curved surface is greater than or equal to 30 mm.

3. The golf club head structure according to any one of claims 1 or 2, characterized in that: The patterned area (100) is defined on the striking surface (11).

4. The golf club head structure according to claim 3, characterized in that: The PVD coating (14) covers at least the entire striking surface (11).

5. A laser-guided color positioning fixture for positioning and clamping the rod head (1) as described in claim 1, characterized in that: It includes a base (21) and a movable seat (22) mounted on the base (21). The base (21) is provided with a movable groove (211) for placing the movable seat (22). The bottom of the movable groove (211) has a first spherical surface (212). The movable seat (22) has at least a second spherical surface (221) matching the first spherical surface (212) at its lower part, so that the movable seat (22) can rotate along the spherical surface. A locking component (23) for locking the movable seat (22) is connected to the movable seat (22). The movable seat (22) is provided with a positioning groove (222) for placing the club head (1) and a clamping component (24) for fixing the club head (1).

6. The laser-guided color positioning fixture according to claim 5, characterized in that: The locking components (23) are provided in at least two and distributed circumferentially. The locking components (23) include a first operating member (231) and a clamping block (232). The first operating member (231) is connected to the base (21) by a threaded structure and moves toward the movable seat (22) when the first operating member (231) is tightened.

7. The laser-guided color positioning fixture according to claim 6, characterized in that: The base (21) is provided with an upwardly extending support column (213), the first operating member (231) is connected to the upper part of the support column (213), and the clamping block (232) is located at least above the center of the second sphere (221).

8. The laser-guided color positioning fixture according to claim 6, characterized in that: The end face of the clamping block (232) near the movable seat (22) is a third spherical surface (233) that matches the second spherical surface (221).

9. The laser-guided color positioning fixture according to claim 5, characterized in that: The clamping assembly (24) is provided in at least two parts and distributed circumferentially. The clamping assembly (24) includes a slider (241), a push block (242), and a second operating member (243). The movable seat (22) is provided with a sliding groove (223) for the slider (241) to slide. The second operating member (243) is connected to the movable seat (22) in the vertical direction by a threaded structure. The push block (242) is sleeved on the second operating member (243). The second operating member (243) has a stepped portion (244) that pushes the push block (242) to move downward when it moves downward. The slider (241) is provided with a first inclined surface (245). The push block (242) is provided with a second inclined surface (246) that matches the first inclined surface (245) and pushes the slider (241) toward the rod head (1) when it moves downward.

10. The laser-guided color positioning fixture according to claim 9, characterized in that: The sidewall of the positioning groove (222) matches the shape of the rod head (1), and the slider (241) matches the shape of the rod head (1) on its end face facing the rod head (1).

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