A corrugated pipe gold plating fixture

Abstract

This invention discloses a gold-plating fixture for corrugated pipes, comprising: a support frame with two adjustable support rods that can move laterally to adjust their spacing; a first gold-plating cylinder seat, the outer edge of the upper opening of the first gold-plating cylinder seat having a first overlapping plate that overlaps the two adjustable support rods, and the first gold-plating cylinder seat being positioned between the two adjustable support rods; a first cover plate of a first corrugated pipe overlapping the first overlapping plate; the first corrugated pipe extending into the first gold-plating cylinder seat and extending out of the lower opening of the first gold-plating cylinder seat for gold plating on the lower end face of the first corrugated pipe; wherein, the first gold-plating cylinder seat has multiple units with different diameters. By adjusting the spacing between the two adjustable support rods and replacing the first gold-plating cylinder seat with different diameters, the requirements for gold plating of corrugated pipes of different diameters (72.5kV and above) can be met.

Description

Technical Field

[0001] This invention relates to the field of electroplating tooling technology, and more specifically to a gold plating tooling for corrugated pipes. Background Technology

[0002] The gold plating process for vacuum interrupter bellows began in the 1980s. Generally, simple fixtures were used to fix the bellows, and the parts to be gold-plated were immersed in a gold-plating solution and an electric current was passed through them. In recent years, as vacuum interrupters have continued to develop towards higher voltage levels, the gold plating process for bellows has matured, and the gold plating fixtures have been continuously improved. Currently, gold plating fixtures for 7.2kV, 12kV, 24kV, and 40.5kV vacuum interrupters have been developed. However, gold plating fixtures for bellows in 72.5kV and above high-voltage interrupters remain a significant challenge. This is because 72.5kV and above high-voltage interrupter bellows are typically high-voltage external pressure multi-layer bellows with cover plates (or end plates, flanges). These bellows come in various sizes and specifications, and existing gold plating fixtures cannot be adapted to the gold plating operation of these different specifications of bellows.

[0003] A search revealed that the existing technology, with publication number CN215925130U and titled "Clamp for Electroplating Corrugated Pipes," has circular through holes on its combined reinforcing plate for the upper cylinder to pass through. When gold plating is required on high-voltage corrugated pipes of different diameters, additional through holes of different diameters need to be made on the combined reinforcing plate to accommodate upper cylinders of different diameters. However, this not only reduces the strength of the combined reinforcing plate due to the excessive number of holes, but also requires matching large-sized combined reinforcing plates, which undoubtedly increases the tooling cost and weight, making the tooling large, bulky, and inconvenient to use.

[0004] Therefore, how to provide a convenient and easy-to-use gold plating fixture for high-voltage bellows that can adapt to different diameters is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a gold plating fixture for corrugated pipes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A gold plating fixture for corrugated pipes includes: The bracket is provided with two adjustable support rods, which can be moved laterally to adjust the distance between them; The first gold-plated cylinder seat has a first overlapping plate on the outer edge of the upper cylinder opening. The first overlapping plate overlaps on the two adjustment support rods, and the first gold-plated cylinder seat is placed between the two adjustment support rods. The first cover plate of the first corrugated pipe overlaps on the first overlapping plate. The first corrugated pipe extends into the interior of the first gold-plated cylinder seat and extends out of the lower cylinder opening of the first gold-plated cylinder seat to plate gold on the lower end face of the first corrugated pipe. The first gold-plated cylindrical base has multiple bases with different diameters.

[0007] The advantages of adopting the above solution are: by adjusting the distance between the two adjusting support rods and replacing the first gold-plated cylinder seat with different diameters, it can adapt to the gold plating requirements of 72.5kV and above high voltage level corrugated pipes of different diameters. Moreover, this device changes the combined reinforcing plate in the existing technology to a bracket with adjustable spacing, effectively avoiding the problems of bulkiness and inconvenience caused by the need for large-size, multi-hole combined reinforcing plates.

[0008] Furthermore, it also includes: a second gold-plated cylinder base, the outer edge of the upper cylinder of the second gold-plated cylinder base having a second overlapping plate, the second overlapping plate overlapping the two said adjusting support rods, and the second gold-plated cylinder base being placed between the two said adjusting support rods, the lower cylinder of the second gold-plated cylinder base being closed by a sealing plate, the second corrugated tube extending into the interior of the second gold-plated cylinder base, and the second cover plate of the second corrugated tube overlapping the second overlapping plate, the second cover plate having a downward flange, the flange stopping on the outer peripheral side of the second overlapping plate to gold-plat the outer peripheral wall surface of the flange; The second gold-plated cylinder base has multiple cylinders with different diameters.

[0009] The advantages of adopting the above scheme are: different tooling can be selected according to the gold plating requirements of different positions of the corrugated pipe. For example, when it is necessary to gold plating the lower end face of the first corrugated pipe, the first gold plating cylinder seat is selected. When it is necessary to gold plating the outer peripheral wall of the flange on the second corrugated pipe, the second gold plating cylinder seat can be selected. Moreover, the lower cylinder of the second gold plating cylinder seat is sealed by a sealing plate, thereby forming a closed cavity at the bottom of the second gold plating cylinder seat. This allows the bottom part of the second corrugated pipe that does not need to be gold plating to be placed in the cavity, avoiding contact with the electroplating solution and thus avoiding waste of the electroplating solution. The outer peripheral wall of the flange that needs to be gold plating is located outside the cavity, allowing this part to contact the electroplating solution and be gold plating.

[0010] Therefore, this tooling can not only adapt to the gold plating operation of corrugated pipes with different gold plating positions, but also place the part of the corrugated pipe that needs to be electroplated separately in the electroplating solution, while the part that does not need to be electroplated is placed in the second gold plating cylinder cavity, saving the amount of electroplating solution (gold plating solution).

[0011] Furthermore, the first overlapping plate is fixedly connected to the adjusting support rod by a first screw; the second overlapping plate is fixedly connected to the adjusting support rod by a second screw.

[0012] The beneficial effect of adopting the above solution is that the first gold-plated cylinder base and the second gold-plated cylinder base can be fixed on the bracket respectively, so as to avoid noise and damage caused by the collision between multiple first gold-plated cylinder bases and multiple second gold-plated cylinder bases on the bracket during the movement of the bracket.

[0013] Furthermore, it also includes pads disposed between the first overlapping plate and the adjusting support rod, and pads disposed between the second overlapping plate and the adjusting support rod, the pads having multiple pads of different thicknesses.

[0014] The advantages of adopting the above solution are: by replacing the pads of different thicknesses, the part of the corrugated pipe that needs to be gold-plated can be precisely immersed below the surface of the electroplating solution, ensuring accurate gold plating and avoiding waste of electrolyte.

[0015] Furthermore, the support includes: Handle holders, wherein two handle holders are arranged at intervals; The connecting crossbars are two fixed at intervals between the two handle brackets. Each of the adjusting support rods has a sliding hole near its two ends, and the sliding hole is fitted onto the connecting crossbar.

[0016] The advantages of adopting the above scheme are: the support structure is simple and easy to hold and handle.

[0017] Furthermore, both ends of the adjusting support rod are screwed with tightening screws, which are in tight contact with the wall of the connecting crossbar.

[0018] The beneficial effect of adopting the above solution is that after the distance between the two adjusting support rods is adjusted, the adjusting support rods can be fixed on the connecting crossbar by tightening the screws, so as to avoid the adjusting support rods moving and thus failing to support the first gold-plated cylinder seat and the second gold-plated cylinder seat. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the axial structure of a bellows gold plating fixture provided by the present invention.

[0021] Figure 2 This is a schematic diagram of the overhead and side structure of a bellows gold plating fixture provided by the present invention.

[0022] Figure 3 This is a top-side structural diagram of a bellows gold plating fixture provided by the present invention.

[0023] Figure 4 for Figure 3 A schematic cross-sectional view of the mid-section AA.

[0024] Figure 5 The present invention provides a schematic diagram of a corrugated pipe gold plating fixture in which a first corrugated pipe and a second corrugated pipe are respectively placed in a first gold plating cylinder and a second gold plating cylinder. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limitations on this invention.

[0027] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this 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 invention according to the specific circumstances.

[0029] This invention addresses the needs of company project B491BG230037, "Research and Sample Development of Key Technologies for 72.5kV Horizontally Arranged Vacuum Interruptors," and develops a bellows gold-plating fixture, comprising: The bracket 1 is provided with two adjustable support rods 2, which can be moved laterally to adjust the distance between them; The first gold-plated cylindrical base 3 has a first overlapping plate 31 on the outer edge of the upper cylindrical opening of the first gold-plated cylindrical base 3. The first overlapping plate 31 overlaps on the two adjusting support rods 2, and the first gold-plated cylindrical base 3 is placed between the two adjusting support rods 2. The first cover plate 1001 of the first corrugated tube 100 overlaps on the first overlapping plate 31. The first corrugated tube 100 extends into the interior of the first gold-plated cylindrical base 3 and extends out of the lower cylindrical opening of the first gold-plated cylindrical base 3 to plate gold on the lower tube opening end face 1002 of the first corrugated tube 100. The first gold-plated cylindrical base 3 has multiple bases with different diameters.

[0030] In some embodiments, the tooling of the present invention further includes: a second gold-plated cylinder seat 4, the upper cylinder of the second gold-plated cylinder seat 4 having a second overlapping plate 41 on the outer edge of the upper cylinder opening, the second overlapping plate 41 overlapping the two adjusting support rods 2, and the second gold-plated cylinder seat 4 being placed between the two adjusting support rods 2, the lower cylinder opening of the second gold-plated cylinder seat 4 being closed by a sealing plate 42, a second corrugated pipe 200 extending into the interior of the second gold-plated cylinder seat 4, and a second cover plate 2001 of the second corrugated pipe 200 overlapping the second overlapping plate 41, the second cover plate 2001 having a downward flange 20011, the flange 20011 stopping on the outer peripheral side of the second overlapping plate 41 to gold-plat the outer peripheral wall surface 200111 of the flange 20011; The second gold-plated cylindrical base 4 has multiple bases with different diameters.

[0031] In some embodiments, the first overlapping plate 31 is fixedly connected to the adjusting support rod 2 by a first screw 5; the second overlapping plate 41 is fixedly connected to the adjusting support rod 2 by a second screw 6.

[0032] In some embodiments, the tooling of the present invention further includes pads disposed between the first overlapping plate 31 and the adjusting support rod 2, and pads disposed between the second overlapping plate 41 and the adjusting support rod 2, the pads having multiple pads of different thicknesses.

[0033] In some embodiments, the support 1 may be made of plastic to avoid gold plating and subsequent waste of gold solution. The substrate includes: Handle holder 11, wherein two handle holders 11 are arranged at intervals; The connecting crossbars 12 are two fixed at intervals between the two handle brackets 11. Each of the adjusting support rods 2 has a sliding hole 21 near its two ends, and the sliding hole 21 is sleeved on the connecting crossbar 12.

[0034] In some embodiments, both ends of the adjusting support rod 2 are screwed with tightening screws 7, which are in tight contact with the wall of the connecting crossbar 12.

[0035] The bellows used in the 72.5kV vacuum interrupter are all equipped with cover plates, and the lower end face of the bellows and the outer peripheral wall of the flange of the bellows cover plate need to be gold plated. When gold plating, the first gold-plated cylinder seat and the second gold-plated cylinder seat can be matched according to the requirements.

[0036] For example, the gold plating operation on the lower end face of the first corrugated pipe is as follows: Place the first gold plating cylinder on two adjusting support rods, overlap the first corrugated pipe onto the first gold plating cylinder, and then place a shim between the first overlapping plate and the adjusting support rods. This ensures that the part of the first corrugated pipe to be gold-plated, i.e., the lower end face, is precisely immersed below the surface of the electroplating solution, guaranteeing precise gold plating and preventing electrolyte waste. If a different size of first corrugated pipe needs to be replaced, the distance between the two adjusting support rods can be adjusted, and a different size first gold plating cylinder can be used to perform the gold plating operation on the corrugated pipes of different sizes, making this fixture versatile.

[0037] The gold plating operation for the outer peripheral wall of the flange of the cover plate of the second corrugated pipe is as follows: Place the second gold plating cylinder on two adjusting support rods, overlap the second corrugated pipe onto the second gold plating cylinder, and then place a shim between the second overlapping plate and the adjusting support rods. This ensures that the part of the second corrugated pipe to be gold-plated—the outer peripheral wall of the flange of the cover plate—is precisely immersed below the surface of the electroplating solution, while the part not to be gold-plated is enclosed within the second gold plating cylinder. This ensures precise gold plating and avoids wasting electrolyte. If different sizes of second corrugated pipes need to be replaced, the distance between the two adjusting support rods can be adjusted, and different sizes of second gold plating cylinders can be used to perform gold plating on corrugated pipes of different sizes, making this fixture versatile.

[0038] In summary, the advantages of the tooling of this invention are: (1) This tooling improves gold plating efficiency, saves gold plating solution consumption, and reduces labor and time costs.

[0039] (2) It achieves integrated design, the overall structure is easy to disassemble, the overall structure is simple and compact, and the reliability is high.

[0040] (3) The tooling is versatile and can be used to plate gold on different types of corrugated pipes. In particular, it can plate gold on corrugated pipes with high voltage levels of 72.5kV and above, filling the gap in this type of corrugated pipe gold plating tooling.

[0041] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gold plating fixture for corrugated pipes, characterized in that, include: The bracket (1) is provided with two adjustable support rods (2), which can be moved laterally to adjust the distance between them; The first gold-plated cylinder seat (3) has a first overlapping plate (31) on the outer edge of the upper cylinder opening. The first overlapping plate (31) overlaps on the two adjustment support rods (2), and the first gold-plated cylinder seat (3) is placed between the two adjustment support rods (2). The first cover plate (1001) of the first corrugated pipe (100) overlaps on the first overlapping plate (31). The first corrugated pipe (100) extends into the interior of the first gold-plated cylinder seat (3) and extends out of the lower cylinder opening of the first gold-plated cylinder seat (3) to plate gold on the lower tube opening end face (1002) of the first corrugated pipe (100). The first gold-plated cylindrical base (3) has multiple bases with different diameters.

2. The corrugated pipe gold plating fixture according to claim 1, characterized in that, Also includes: The second gold-plated cylinder seat (4) has a second overlapping plate (41) on the outer edge of the upper cylinder opening. The second overlapping plate (41) overlaps on the two adjustment support rods (2), and the second gold-plated cylinder seat (4) is placed between the two adjustment support rods (2). The lower cylinder opening of the second gold-plated cylinder seat (4) is closed by a sealing plate (42). The second corrugated pipe (200) extends into the interior of the second gold-plated cylinder seat (4), and the second cover plate (2001) of the second corrugated pipe (200) overlaps on the second overlapping plate (41). The second cover plate (2001) has a downward flange (20011), and the flange (20011) stops on the outer periphery of the second overlapping plate (41) to be gold-plated on the outer periphery wall (200111) of the flange (20011). The second gold-plated cylinder base (4) has multiple cylinders with different diameters.

3. The corrugated pipe gold plating fixture according to claim 2, characterized in that, The first overlapping plate (31) is fixedly connected to the adjusting support rod (2) by the first screw (5); the second overlapping plate (41) is fixedly connected to the adjusting support rod (2) by the second screw (6).

4. The corrugated pipe gold plating fixture according to claim 2, characterized in that, It also includes pads disposed between the first overlapping plate (31) and the adjusting support rod (2), and between the second overlapping plate (41) and the adjusting support rod (2), the pads having multiple thicknesses.

5. A bellows gold plating fixture according to any one of claims 1-4, characterized in that, The support (1) includes: Handle holder (11), wherein two handle holders (11) are arranged at intervals; The connecting crossbars (12) are two fixed at intervals between the two handle brackets (11). Each of the adjusting support rods (2) has a sliding hole (21) near its two ends. The sliding hole (21) is sleeved on the connecting crossbar (12).

6. The corrugated pipe gold plating fixture according to claim 5, characterized in that, Both ends of the adjusting support rod (2) are screwed with tightening screws (7), and the tightening screws (7) are in tight contact with the wall of the connecting crossbar (12).

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