Bathroom hardware PVD vacuum coating jig

Abstract

The utility model discloses a bathroom hardware PVD vacuum coating tool jig, including substrate, support circle and a plurality of coordination components. The substrate is equipped with the inlay groove, and the support circle is inlayed in the inlay groove, and is used for supporting the bathroom hardware spare of being handled, and the inner wall of support circle is equipped with the guide hole, and the surface recess forms the clamping space. The coordination component sets up on the support circle, and includes the locating claw, guide slide column and elastic reset piece, and the one end rotatable connection locating claw of guide slide column, the other end is worn in the guide hole, and the elastic reset piece is set up in the outside of guide slide column, is used for pushing locating claw and clamping hardware spare. The compact structure of this jig, positioning is reliable, and the adaptability is strong, and the stability of coating process and film forming quality are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of PVD vacuum coating, and in particular to a tooling fixture for PVD vacuum coating of bathroom hardware. Background Technology

[0002] In the surface treatment of bathroom hardware products, PVD (Physical Vapor Deposition) vacuum coating is a widely used high-quality surface treatment technology that can endow hardware products with good decorative properties and corrosion resistance. However, the PVD coating process has high requirements for the placement angle and positional stability of the workpiece, especially in a vacuum environment. To ensure uniform film deposition, the stable support and precise positioning of the workpiece become key factors. Traditional tooling fixtures mostly adopt rigid fixed structures, which are difficult to adapt to bathroom hardware parts of different specifications, curved surfaces, or irregular shapes. The operation is cumbersome and the clamping efficiency is low, affecting the consistency and efficiency of the coating process.

[0003] Existing fixtures attempt to constrain workpieces using standardized slots or elastic limiting devices, but these methods generally suffer from insufficient versatility, large positioning errors, and inconvenient assembly and disassembly. Especially for small-batch, diverse bathroom products, frequent changes to fixtures or clamping accessories significantly increase production costs and reduce the utilization rate of coating equipment. Furthermore, the limited space within the PVD vacuum chamber places higher demands on the fixture's structural compactness and ease of operation.

[0004] In view of this, the inventor has specially designed a PVD vacuum coating tooling fixture for bathroom hardware, which leads to this invention. Utility Model Content

[0005] (a) Technical problems to be solved The purpose of this application is to provide a PVD vacuum coating fixture for bathroom hardware, addressing the problems of existing PVD vacuum coating fixtures being incompatible with bathroom hardware of different specifications, having poor positioning stability, and being cumbersome to clamp.

[0006] (II) Technical Solution To solve the above-mentioned technical problems, this utility model provides the following technical solution: This application provides a PVD vacuum coating fixture for bathroom hardware, characterized in that it includes: a substrate with an insert groove; a support ring embedded in the insert groove for supporting the bathroom hardware to be processed, wherein a guide hole is formed on the inner wall of the support ring; the surface of the support ring is recessed downward for placing the bathroom hardware and for clamping the positioning components; and a plurality of positioning components are respectively disposed on the support ring for clamping and positioning the bathroom hardware. The positioning component includes: a positioning claw for contacting and fixing the bathroom hardware; a guide post, one end of which is rotatably mounted on the positioning claw, and the other end of which passes through the guide hole on the support ring; and an elastic reset member, sleeved on the outside of the guide post, for pushing the positioning claw to move toward the bathroom hardware.

[0007] In a further embodiment, the contact surface of the positioning claw is provided with a flexible buffer pad to reduce damage to the surface of bathroom hardware during clamping.

[0008] In a further embodiment, the flexible cushioning layer is one of a silicone pad, foam, or polyurethane pad.

[0009] In a further embodiment, the elastic reset element is a compression spring, one end of which is detachably connected to the positioning claw, and the other end is detachably fixed to the inner wall of the clamping space.

[0010] In a further embodiment, a locking protrusion is provided at the end of the guide post away from the positioning claw, and a slot for engaging the locking protrusion is provided on the side wall of the guide hole.

[0011] In a further embodiment, the slot has a stepped structure, forming multiple positioning states with the protrusion to adjust the clamping strength of the positioning claw.

[0012] In a further embodiment, the guide column and the positioning claw are rotatably connected by a connector, which is a ball-head structure, to enable multi-angle rotation to adapt to hardware parts with different contours.

[0013] In a further embodiment, the number of coordination components is four, and they are symmetrically distributed around the support ring.

[0014] In a further embodiment, a rotating shaft is fixedly mounted on the mounting groove, and a bearing adapted to the rotating shaft is movably mounted at the bottom of the support ring.

[0015] In a further embodiment, a lever is provided on the outer side of the support ring to drive the support ring to rotate around the rotary bearing and adjust the angle.

[0016] (III) Beneficial Effects Compared with the prior art, the present invention has the following advantages: By setting an insert groove and embedding a support ring on the substrate, and setting multiple positioning components with limiting and resetting functions on the support ring, stable clamping and multi-point positioning of bathroom hardware parts of different shapes and sizes are achieved, effectively avoiding the risk of workpiece displacement or loosening during the coating process. The positioning claw can achieve automatic fitting and buffer protection through the cooperation of guide rail and compression spring. At the same time, it is equipped with a snap-locking structure and ball head connector, which enhances adaptability and adjustability. The overall structure is compact, versatile, and easy to operate, which significantly improves the workpiece positioning efficiency and product film quality in the PVD vacuum coating process. It is superior to the existing traditional fixture solutions with simple structure, poor versatility, and insufficient clamping stability.

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0018] in: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the worktable and coordination component of this utility model; Figure 3 This utility model Figure 1 Enlarged view of a portion; Figure 4 This is a schematic diagram of different positioning states of this utility model.

[0019] Label Explanation: 1. Substrate; 2. Mounting groove; 3. Support ring; 31. Guide hole; 32. Clamping space; 33. Pulley; 4. Matching component; 41. Positioning claw; 42. Guide slide post; 43. Elastic reset component; 5. Flexible buffer pad; 6. Snap-on protrusion; 7. Snap-on groove; 8. Connector; 91. Rotating shaft; 92. Bearing; 10. Bathroom hardware. Detailed Implementation

[0020] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0021] This utility model discloses a tooling fixture suitable for the PVD vacuum coating process of bathroom hardware. It has a compact structure and reliable positioning, and is particularly suitable for the stable clamping and position adjustment of various specifications and irregular shapes of bathroom hardware parts 10, thereby improving the uniformity of coating and the consistency of products.

[0022] Specifically, such as Figures 1 to 4As shown, the fixture includes a base plate 1, a support ring 3, and multiple matching components 4. The base plate 1 is a flat plate that supports the entire fixture system and connects to the PVD coating equipment platform. It has an insert groove 2. This insert groove 2 is an annular groove structure that matches the outer contour of the support ring 3, ensuring the support ring 3 is stably embedded within it and guaranteeing the overall positioning stability of the fixture during use.

[0023] like Figure 1 and Figure 2 As shown, the support ring 3 is disposed within the mounting groove 2 of the substrate 1, and has multiple guide holes 31 on its inner wall for facilitating the insertion of the subsequent clamping structure. The surface of the support ring 3 is recessed downward to form a clamping space 32, which is used to accommodate the bathroom hardware 10 to be processed and the working space of the clamping mechanism. This structure can effectively reduce the overall height of the fixture, making it adaptable to the space constraints within the PVD vacuum chamber, and improving operational safety and visibility.

[0024] like Figure 2 As shown, the positioning components 4 are the core positioning structure of this fixture. Preferably, four sets are arranged symmetrically around the circumference of the support ring 3, but this can be adjusted to three or more points depending on the workpiece shape. Each set of positioning components 4 includes a positioning claw 41, a guide post 42, and an elastic reset component 43. The positioning claw 41 has an arc-shaped contact surface to adapt to the outer contour of hardware parts with different curvatures. Its material is preferably metal or engineering plastic, and a flexible buffer pad 5, such as a silicone pad, foam, or polyurethane sheet, is attached to the contact surface to reduce clamping force and prevent scratches or indentations.

[0025] like Figure 3 As shown, the guide column 42 is a straight rod-shaped component with one end hinged to the positioning claw 41 and the other end passing through the guide hole 31 of the support ring 3, serving as a guide and sliding limiter. The guide column 42 and the positioning claw 41 are rotatably connected by the connector 8, and are connected to the positioning claw 41 by a ball joint structure, enabling the positioning claw 41 to be rotated and adjusted within multiple angles to adapt to the contact and clamping requirements of workpieces of different shapes. A compression spring is sleeved on the outside of the guide column 42 as an elastic reset member 43, one end of which abuts against the spring seat on the inner wall of the clamping space 32 of the support ring 3, and the other end abuts against the bottom of the positioning claw 41, for continuously pushing the positioning claw 41 to move towards the center of the support ring 3.

[0026] To prevent displacement of the positioning claw 41 due to elastic fluctuations during clamping, a locking protrusion 6 is provided at the end of the guide column 42 away from the positioning claw 41, and a stepped locking groove 7 is provided on the side wall of the corresponding guide hole 31 of the support ring 3. By rotating the guide column 42, the locking protrusion 6 can be engaged with the corresponding stepped section, realizing multi-stage clamping force adjustment and position locking, and enhancing positioning stability. This structure maintains ease of operation while improving the adjustment range and accuracy of the clamping force.

[0027] like Figure 2 As shown, furthermore, to facilitate the rapid replacement and positioning of bathroom hardware parts 10 from different batches and of different shapes, a bearing 92 structure is provided at the bottom of the support ring 3, which cooperates with the rotating shaft 91 on the substrate 1, allowing the support ring 3 to rotate around the center at a certain angle. This, in conjunction with the rotating mechanism inside the PVD equipment, enables multi-angle dynamic coating of the workpiece, improving the uniformity of film coverage. A lever 33 is provided on the outer side of the support ring 3, facilitating manual manipulation of the fixture by the operator, or lifting the entire support ring 3 structure during disassembly, cleaning, and maintenance, making operation convenient.

[0028] This embodiment, through the aforementioned structural design, achieves a PVD tooling fixture device with strong adaptability, stable positioning, gentle clamping, and adjustable safety. It is widely applicable to the vacuum coating and fixing needs of various bathroom hardware components 10, such as faucets, showerheads, and wall hangings. Compared to existing fixtures that only adapt to a single model or employ rigid limiting mechanisms, this invention not only improves the clamping effect but also optimizes clamping efficiency and production adaptability.

[0029] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A PVD vacuum coating fixture for bathroom hardware, characterized in that, include: A substrate having an insert groove on it; A support ring is embedded in the mounting groove to support the bathroom hardware to be processed. A guide hole is provided on the inner wall of the support ring. The surface of the support ring is recessed downward to provide a clamping space for placing the bathroom hardware and for the operation of the matching components. Multiple positioning components are respectively disposed on the support ring for clamping and positioning the bathroom hardware; The coordination component includes: Positioning claws are used to contact and secure the bathroom hardware. The guide column has one end rotatably mounted on the positioning claw, and the other end passes through the guide hole on the support ring; An elastic reset component is sleeved on the outside of the guide column and is used to push the positioning claw to move towards the bathroom hardware.

2. The PVD vacuum coating fixture for bathroom hardware according to claim 1, characterized in that, The contact surface of the positioning claw is provided with a flexible buffer pad to reduce damage to the surface of bathroom hardware during clamping.

3. The PVD vacuum coating fixture for bathroom hardware according to claim 2, characterized in that, The flexible cushioning layer is one of a silicone pad, foam, or polyurethane pad.

4. The PVD vacuum coating fixture for bathroom hardware according to claim 1, characterized in that, The elastic reset element is a compression spring, one end of which is detachably connected to the positioning claw, and the other end is detachably fixed to the inner wall of the clamping space.

5. A PVD vacuum coating fixture for bathroom hardware according to claim 1, characterized in that, The guide post has a locking protrusion at the end away from the positioning claw, and the guide hole has a slot on its side wall for engaging the locking protrusion.

6. A PVD vacuum coating fixture for bathroom hardware according to claim 5, characterized in that, The slot has a stepped structure and forms multiple positioning states with the protrusion to adjust the clamping strength of the positioning claw.

7. A PVD vacuum coating fixture for bathroom hardware according to claim 1, characterized in that, The guide column and the positioning claw are rotatably connected by a connector, which has a ball head structure to enable multi-angle rotation to adapt to hardware parts with different contours.

8. A PVD vacuum coating fixture for bathroom hardware according to claim 1, characterized in that, The number of coordination components is four, and they are symmetrically distributed around the circumference of the support ring.

9. A PVD vacuum coating fixture for bathroom hardware according to claim 1, characterized in that, A rotating shaft is fixedly installed on the mounting groove, and a bearing adapted to the rotating shaft is movably installed at the bottom of the support ring.

10. A PVD vacuum coating fixture for bathroom hardware according to claim 9, characterized in that, A lever is provided on the outer side of the support ring to drive the support ring to rotate around the bearing and adjust the angle.

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