Rack plating hook
By using a straight hook design for plating, and employing a locking mechanism between the conical part and the perforated part, the problem of workpiece swaying and falling off in hook-shaped hangers is solved, thus achieving stable workpiece mounting and uniform electroplating.
Patent Information
- Application Number
- CN202511335230.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2025-11-28
AI Technical Summary
Existing hook-shaped hangers cause workpieces to wobble during plating, leading to them falling off and poor conductivity. Adding a limiting structure would also increase complexity.
The plating hook adopts a straight hook design. The two hooks work together and utilize the design of the conical part and the perforated part to clamp the workpiece when it is tilted, increase the friction, and ensure the stability of the workpiece posture.
It achieves stability and uniform conductivity of workpieces during the plating process, reduces the possibility of shaking and falling, and simplifies the operation process.
Smart Images
Figure CN121023618A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of hanging plating, in particular to a hanging plating hook. BACKGROUND
[0002] Hanging plating, also known as "suspension plating", is the most commonly used electroplating method, which specifically uses a hanger to hang the workpiece to be plated on the production line and carries out electroplating in the electroplating tank. In the process of hanging plating, the hanger needs to stably hang the workpiece and ensure reliable contact with the workpiece to ensure that the current uniformly flows through the workpiece.
[0003] The existing hanger is commonly in the shape of a bent hook, as shown in Figure 1 The bent hook part 1' of the hanger passes through the feature hole 21 on the workpiece 2 to hang up the workpiece 2. The problem of this structure is that the workpiece lacks limiting on the hanger, which leads to the workpiece easily shaking in the process of hanging plating, and further causes the workpiece to accidentally fall, poor conduction, and decreased plating layer quality, etc. If a limiting structure is added, it will increase the structural complexity of the hanger and make it inconvenient to operate the workpiece to be hung on the hanger and taken off from the hanger. SUMMARY
[0004] Based on the above situation, the purpose of the present application is to provide a hanging plating hook to solve the problems existing in the existing bent hook-shaped hanger and to realize stable and convenient mounting of the workpiece.
[0005] To achieve the above purpose, the present application adopts the following technical solutions:
[0006] A hanging plating hook, comprising a main body part, the main body part being in a cylindrical shape, a perforated part being provided at the head end of the main body part, the perforated part being used to pass into a feature hole of a workpiece, the size of the perforated part being smaller than the size of the main body part, and the perforated part being transitionally connected to the main body part through a conical surface part, the hole diameter of the feature hole being larger than the small end diameter of the conical surface part and smaller than the large end diameter of the conical surface part, and the surface of the perforated part being provided in a concave-convex shape for increasing friction;
[0007] Two hanging plating hooks are used in cooperation, each of the hanging plating hooks passes through one feature hole, and the distance between the two hanging plating hooks remains unchanged, when the workpiece mounted on the two hanging plating hooks is inclined, the projection distance of the corresponding two feature holes in the axial direction of the hanging plating hook is reduced, so that the workpiece is clamped by the two hanging plating hooks.
[0008] As an optional solution, the connection between the conical surface part and the perforated part is the smallest position on the hanging plating hook, and one end of the perforated part close to the conical surface part is provided with a conical segment with the same taper as the conical surface part.
[0009] As an optional solution, a plurality of large-diameter segments and small-diameter segments are arranged on the perforated part in an alternating manner along the axial direction of the perforated part, the adjacent large-diameter segment and small-diameter segment are connected through an inclined surface to form a concave-convex shape.
[0010] As an alternative, the end of the perforated part away from the conical part is provided with a ball head section.
[0011] As an alternative, the perforated part and the part of the conical part in contact with the workpiece are respectively provided with a polished surface, and the main body part and the part of the conical part not in contact with the workpiece are respectively provided with a PTFE coating.
[0012] As an alternative, the tail end of the main body part is provided with a threaded connection part.
[0013] As an alternative, the two hanging hooks are located in the same horizontal plane and are fixed on the hanger beam.
[0014] The beneficial effects of the present application are:
[0015] The hanging hook overturns the traditional design of the bent hook and adopts a straight hook form, which is convenient for stretching into or withdrawing from the characteristic hole of the workpiece, and the two hanging hooks are used in cooperation, so that the workpiece is clamped when it is tilted. In addition, the conical part and the perforated part of the hanging hook are shaped to improve the friction force between the workpiece and the hanging hook, further ensure the stability of the workpiece posture, reduce the possibility of shaking and falling of the workpiece during production, and meet the hanging requirements. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is a schematic diagram of the existing bent hook-shaped hanger loading the workpiece;
[0017] Figure 2 is a structural schematic diagram of the hanging hook provided by the embodiment of the present application;
[0018] Figure 3 is a schematic diagram of the two hanging hooks cooperating to load the workpiece in the flat state of the workpiece provided by the embodiment of the present application;
[0019] Figure 4 is Figure 3 the cross-sectional view at A-A in FIG. 4;
[0020] Figure 5 is Figure 3 the enlarged view at B in FIG. 4;
[0021] Figure 6 is a schematic diagram of the two hanging hooks cooperating to load the workpiece in the tilted state of the workpiece provided by the embodiment of the present application;
[0022] Figure 7 is Figure 6 the cross-sectional view at C-C in FIG. 5;
[0023] Figure 8 is Figure 6 the enlarged view at D in FIG. 5.
[0024] In the drawings:
[0025] 1', hook portion;
[0026] 1, hanging hook; 11, main body portion; 12, perforated portion; 121, conical segment; 122, large diameter segment; 123, small diameter segment; 124, ball head segment; 13, tapered surface portion; 14, threaded connection portion;
[0027] 2, workpiece; 21, feature hole. DETAILED DESCRIPTION
[0028] The application will be further described below in conjunction with the drawings and examples. It should be understood that the specific examples described herein are intended to be illustrative only and are not in any way limiting of the application. In addition, it should be understood that, for ease of description, only the portions of the drawings that are pertinent to the application are shown.
[0029] In the description of the present application, unless specifically defined and limited otherwise, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0030] In the present application, unless specifically defined and limited otherwise, the "upper" or "lower" of the first feature in the second feature can include the direct contact of the first and second features, or the indirect contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature in the second feature include the vertical direction of the first feature above and oblique above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "lower", "lower" and "lower" of the first feature in the second feature include the vertical direction of the first feature below and oblique below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0031] In the description of the present application, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the application.
[0032] In addition, the terms "first", "second" and the like are only used to distinguish in description, and have no special meaning.
[0033] Please refer to Figures 2 to 8As shown, the embodiment provides a hanging hook 1, which comprises a main body 11 in a cylindrical shape, and a perforated part 12 provided at the head end of the main body 11 and used to be inserted into a feature hole 21 of a workpiece 2, wherein the size of the perforated part 12 is smaller than that of the main body 11, and the perforated part 12 is connected to the main body 11 through a tapered part 13, the feature hole 21 has a hole diameter larger than the small end diameter of the tapered part 13 and smaller than the large end diameter of the tapered part 13, and the surface of the perforated part 12 is provided with a concave-convex shape for increasing friction.
[0034] In particular, two hanging hooks 1 are used in cooperation, each of which is inserted into a corresponding feature hole 21, and the distance between the two hanging hooks 1 remains unchanged, when the workpiece 2 hung on the two hanging hooks 1 is tilted, the projection distance of the corresponding two feature holes 21 in the axial direction of the hanging hook 1 is reduced, so that the workpiece 2 is clamped by the two hanging hooks 1.
[0035] Therefore, the original design of the bent hook part 1' is abandoned, and a straight hook form is adopted, which is convenient for inserting into or withdrawing from the feature hole 21 of the workpiece 2, and the two hanging hooks 1 are used in cooperation, so that the workpiece 2 is clamped when it is tilted, in addition, the modeling of the tapered part 13 and the perforated part 12 on the hanging hook 1 improves the friction between them and the workpiece 2, further ensures the stable posture of the workpiece 2, reduces the possibility of shaking and falling of the workpiece 2 in the production process, and meets the hanging requirements.
[0036] Optionally, the connection between the tapered part 13 and the perforated part 12 is the smallest position on the hanging hook 1, and an end of the perforated part 12 close to the tapered part 13 is provided with a conical segment 121 with the same taper as the tapered part 13.
[0037] In view of the above structure, the smallest position is the position of the feature hole 21 of the workpiece 2 in the normal case (the workpiece 2 is in a flat state), so as to limit the movement of the workpiece 2 along the axial direction of the hanging hook 1 as much as possible, as shown in Figures 3 to 5 .
[0038] In this state, when the workpiece 2 is tilted, one feature hole 21 will move along the tapered part 13, and as the size of the tapered part 13 gradually increases, the movement of the feature hole 21 will be limited, and the other feature hole 21 will enter the concave-convex surface of the perforated part 12 along the conical segment 121, so that the workpiece 2 reaches a balanced position and keeps stable, as shown in Figures 6 to 8 .
[0039] Optionally, the perforated part 12 is provided with a plurality of large-diameter segments 122 and small-diameter segments 123 arranged staggered along the axial direction of the perforated part 12, and the adjacent large-diameter segments 122 and small-diameter segments 123 are connected through inclined surfaces to form a concave-convex shape.
[0040] Thus, the concave-convex surface increases the contact area and surface roughness between the perforating part 12 and the workpiece 2, so that the workpiece 2 is not easy to slide on the perforating part 12; in addition, the bevel connection is better than the curved surface transition, so that the surface of the perforating part 12 has relatively large friction, and the surface of the workpiece 2 is not damaged.
[0041] Optionally, the end of the perforating part 12 away from the tapered surface part 13 is provided with a spherical head section 124.
[0042] Thus, the spherical head section 124 of the spherical surface shape guides the smooth entry of the perforating part 12 into the feature hole 21, the spherical surface has no sharp edges, the contact area is small and the friction is low, avoiding the jamming or damage caused by the deflection of the perforating part 12 and the feature hole 21, and leaving no scratches on the aperture of the feature hole 21 when the perforating part 12 is pulled out, protecting the surface of the workpiece 2.
[0043] Optionally, the part of the perforating part 12 and the tapered surface part 13 in contact with the workpiece 2 is provided with a polished surface, and the part of the main body part 11 and the tapered surface part 13 not in contact with the workpiece 2 is provided with a PTFE coating.
[0044] Thus, the low-resistance polished surface ensures uniform current density and guarantees the conductivity; the chemical inertness (acid and alkali resistance, solvent resistance) and self-lubricating property of PTFE (polytetrafluoroethylene, also known as Teflon) reduce corrosion and friction resistance in the non-contact area.
[0045] Optionally, the tail end of the main body part 11 is provided with a threaded connection part 14.
[0046] Thus, the detachable installation of the hanging plating hook 1 is realized through the threaded connection, which facilitates the replacement of the worn hanging plating hook 1 and the adjustment of the position of the hanging plating hook 1 according to the spacing of the feature holes 21.
[0047] Further, the two hanging plating hooks 1 are located in the same horizontal plane and fixed on the hanger beam.
[0048] Thus, the horizontal symmetrical layout ensures uniform electric field distribution of the workpiece 2 in the electrolyte, avoiding the difference in plating thickness caused by the height difference; in addition, the head ends of the two hanging plating hooks 1 are basically flush, allowing for slight misalignment, which does not affect the extension and withdrawal of the two perforating parts 12 from the corresponding feature holes 21 in the flat state of the workpiece 2.
[0049] In summary, the straight hook type hanging plating hook 1 overturns the traditional curved hook design, which not only embodies the advantage of the straight hook form for convenient insertion, but also realizes the clamping of the workpiece 2 through the cooperation of the two hanging plating hooks 1, according to the principle that the vertical distance of the feature holes 21 decreases when the workpiece 2 is tilted, which is a clever design with simple structure and low implementation cost.
[0050] Obviously, the above embodiments of the present application are merely exemplary but not intended to limit the embodiments of the present application. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. It is not necessary or possible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims
1. A plating hanger, characterized by comprising: The hook includes a main body (11), the main body (11) is cylindrical, the head end of the main body (11) is provided with a perforated part (12), the perforated part (12) is used for penetrating into a feature hole (21) of a workpiece (2), the size of the perforated part (12) is smaller than the size of the main body (11), and the perforated part (12) is connected to the main body (11) through a tapered surface part (13), the diameter of the feature hole (21) is greater than the small end diameter of the tapered surface part (13) and smaller than the large end diameter of the tapered surface part (13), and the surface of the perforated part (12) is provided with a concave-convex shape for increasing friction; Two of the hanging hooks (1) are used in cooperation, each of the hanging hooks (1) corresponds to penetrating through one of the feature holes (21), and the spacing of the two hanging hooks (1) remains unchanged, when the workpiece (2) hung on the two hanging hooks (1) is inclined, the projection distance of the corresponding two feature holes (21) in the axial direction of the hanging hook (1) is reduced, so that the workpiece (2) is clamped by the two hanging hooks (1).
2. The hanging and plating hook according to claim 1, wherein The connection between the tapered surface part (13) and the perforated part (12) is the smallest size position on the hanging hook (1), and one end of the perforated part (12) close to the tapered surface part (13) is provided with a conical section (121) with the same taper as the tapered surface part (13).
3. The hanging and plating hook according to claim 1, wherein The perforated part (12) is provided with a plurality of large diameter sections (122) and small diameter sections (123) arranged along the axial direction of the perforated part (12), the adjacent large diameter section (122) and small diameter section (123) are connected through an inclined surface, forming the concave-convex shape.
4. The hanging and plating hook according to claim 1, wherein The end of the perforated part (12) away from the tapered surface part (13) is provided with a ball head section (124).
5. The hanging and plating hook according to claim 1, wherein The perforated part (12) and the part of the tapered surface part (13) in contact with the workpiece (2) are respectively provided with a polished surface, and the main body (11) and the part of the tapered surface part (13) not in contact with the workpiece (2) are respectively provided with a PTFE coating.
6. The hanging and plating hook according to claim 1, wherein The tail end of the main body (11) is provided with a threaded connection part (14).
7. The hanging and plating hook according to claim 6, wherein The two hanging hooks (1) are located in the same horizontal plane and fixed on the hanging tool beam.