Vacuum barrel plating device for small-aperture parts

Abstract

The utility model discloses a vacuum barrel plating device for small-aperture parts, which comprises an electroplating bath component, a plurality of groups of anode titanium blue, a rotary drum component and a lifting component, the electroplating bath component is provided with an electroplating bath and a cover plate, the upper edge of the electroplating bath is provided with a sealing ring, and the side wall of the electroplating bath is provided with two groups of vacuum joints; when the cover plate is attached to the sealing ring, the interior of the plating tank is in a sealed state, the multiple sets of anode titanium blue switches are arranged in the plating tank, the rotary roller assembly is provided with a roller assembly arranged below the cover plate, a driving assembly arranged above the cover plate and a transmission assembly, the driving assembly drives the roller assembly to rotate through the transmission assembly, and the lifting assembly is arranged above the cover plate. And the rotary roller assembly is lifted or put down in cooperation with external lifting equipment.

Description

Technical Field

[0001] This utility model relates to the field of electroplating, specifically to a vacuum barrel plating device for small-diameter parts. Background Technology

[0002] In some auto parts, there are blind holes or straight holes with a diameter of less than 1 mm. These small holes also need to be electroplated during the electroplating process. However, due to the shielding effect of the current and the slow flow of the plating solution, there are often cases of incomplete plating or insufficient plating thickness inside these small holes, which causes many quality problems. At the same time, due to the poor flow of the plating solution, the exchange of metal ions inside the small holes is slowed down, which leads to serious quality problems such as plating burning.

[0003] To address the shielding effect of current, some companies use chemical plating. While this method solves the shielding problem, it significantly increases costs. Furthermore, the chemical plating solution still suffers from poor fluidity inside small holes, resulting in a thinner plating layer. Other companies use lower current densities and extend the plating time to increase the overall plating thickness. Although this improves the problem, it leads to decreased production efficiency and, consequently, increased production costs. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the shortcomings of the prior art, this utility model provides a vacuum barrel plating device for small-diameter parts.

[0005] The technical solution adopted in this utility model is: a vacuum barrel plating device for small-diameter parts, comprising:

[0006] An electroplating tank assembly includes a plating tank and a cover plate. Two sets of vacuum connectors are embedded in the side wall of the plating tank, which are respectively connected to a vacuum machine and compressed air. A sealing ring is provided on the upper edge of the plating tank. The cover plate is pressed tightly against the sealing ring to make the inside of the plating tank sealed.

[0007] Multiple sets of anode titanium blue are arranged in a ring inside the plating bath, forming a reaction zone in the middle;

[0008] A rotary drum assembly includes a drive assembly located above a cover plate, a drum assembly located below the cover plate, and a transmission assembly. The drive assembly drives the drum assembly to rotate via the transmission assembly. The drum assembly is placed within a reaction zone formed by multiple sets of anode titanium baskets.

[0009] The lifting assembly, located above the cover plate, works with external lifting equipment to lift the rotating roller assembly away from the plating tank or lower it into the plating tank.

[0010] Preferably, the roller assembly includes a fixed seat, a rotating seat, and a roller. The fixed seat is connected to the lower end face of the cover plate via a connecting plate. The fixed seat has a 45° inclined mounting surface. The roller is assembled on the mounting surface in conjunction with the rotating seat. The rotating seat has a toothed structure around its perimeter.

[0011] Preferably, the roller has a hexagonal structure.

[0012] Preferably, the drive assembly includes a motor fixed to the cover plate and a first bevel gear mounted on the motor shaft. The transmission assembly includes a transmission shaft and second bevel gears mounted at both ends of the transmission shaft. One end of the transmission shaft passes through the cover plate, and the second bevel gear at that end meshes with the first bevel gear. The other end of the transmission shaft extends to the rotating seat, and the second bevel gear at that end meshes with the gear structure of the rotating seat.

[0013] Preferably, the plating tank has a bottom plate and a tank body, the upper end of the tank body has a flange edge, a sealing ring is disposed on the surface of the flange edge, and the sealing ring is provided in two sets, inner and outer.

[0014] Preferably, the plating tank is further provided with a heating coil, and the two ends of the heating coil extend out of the side wall of the plating tank and are connected to heaters.

[0015] Beneficial effects: The vacuum barrel plating apparatus for small-diameter parts disclosed in this utility model has the following effects:

[0016] The sealing ring set on the upper edge of the plating tank is combined with the cover plate to form a sealed cavity inside the plating tank. With the help of the vacuum equipment, the plating tank is made into a vacuum environment, which can eliminate air bubbles at the orifice during subsequent electroplating, thus ensuring that the plating solution can effectively enter the orifice for electroplating.

[0017] The rotating drum allows the parts to roll continuously inside the drum, avoiding overlap and uneven coating. At the same time, the inclined hexagonal drum can agitate the plating solution when rotating, thereby improving the fluidity of the plating solution.

[0018] The design of the upper lifting component allows for rapid rolling and hoisting to the loading and unloading station, shortening non-production time and improving efficiency. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of an embodiment of the present utility model;

[0020] Figure 2 This is an internal structural diagram of an embodiment of the present utility model;

[0021] Figure 3 This is a partial cross-sectional view of an embodiment of the present utility model;

[0022] Figure 4 This is a structural diagram of the rotary drum assembly in an embodiment of the present invention. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] This utility model discloses a vacuum barrel plating apparatus for small-diameter parts, which realizes the electroplating process of parts with small holes. The specific structure is as follows: Figures 1-3 As shown, the assembly includes an electroplating tank assembly 1, multiple sets of anode titanium blue 2, a rotary drum assembly 3, and a lifting assembly 4. The electroplating tank assembly has a plating tank 11 and a cover plate 12. The plating tank is filled with electroplating solution. Multiple sets of anode titanium blue are arranged in a ring inside the plating tank. The rotary drum assembly is installed on the cover plate. The rotating drum loads parts placed in the plating tank to achieve rotary electroplating. The lifting assembly is located on the cover plate to realize the hoisting of the cover plate and the rotary drum assembly.

[0025] Specifically, the electroplating tank assembly includes a plating tank 11 and a cover plate 12. The plating tank has a bottom plate and a tank body. The lower end of the tank body is embedded in the bottom plate, and the upper end has a flange edge 13. The surface of the flange edge is provided with two sets of inner and outer sealing rings 14. The sealing rings allow a sealed space to be formed in the plating tank when the cover plate is pressed down. Two sets of vacuum connectors 15 are embedded in the side wall of the tank body. One vacuum connector is connected to a vacuum machine to realize the vacuuming of the plating tank, and the other vacuum connector is connected to compressed air to realize the vacuum breaking of the plating tank. The sealing rings and vacuum connectors can form a sealed vacuum environment in the plating tank, effectively improving the electroplating quality, especially the electroplating quality inside small holes.

[0026] Multiple anode titanium blue rings are arranged inside the electroplating tank, forming a reaction zone in the middle to accommodate the rollers. The anode titanium blue is equipped with an anode bag. The electroplating tank is filled with electroplating solution. During use, the height of the electroplating solution is controlled at 80% of the height of the anode titanium blue to prevent nickel slag from the anode titanium blue from overflowing into the plating solution through the anode bag, causing quality problems on the plating surface. In addition, the plating tank is also equipped with a heating coil 16, and the two ends of the heating coil extend out of the side wall of the plating tank and are connected to heating steam. The heating steam pipe is equipped with a solenoid valve to ensure that the electroplating solution is kept at a constant temperature.

[0027] The rotary roller assembly includes a drive assembly 31 located above the cover plate, a roller assembly 32 located below the cover plate, and a transmission assembly 33. The drive assembly drives the roller assembly to rotate via the transmission assembly. The roller assembly includes a fixed seat 321, a rotating seat 322, and a roller 323. The fixed seat is connected to the lower end face of the cover plate via a connecting plate 324. The fixed seat has a 45° inclined mounting surface 325. The roller is mounted on the mounting surface in conjunction with the rotating seat. The roller has a hexagonal structure. Compared with the conventional cylindrical structure, the hexagonal structure of the roller is more conducive to the tumbling and rolling of internal parts during rotation, avoiding the overlap of parts inside and affecting the electroplating quality. At the same time, the hexagonal structure of the roller, combined with the 45° inclined setting, can agitate the electroplating solution during rotation, thereby improving the fluidity of the electroplating solution.

[0028] The drive assembly includes a motor 311 fixed to the cover plate and a first bevel gear 312 mounted on the motor shaft. The transmission assembly includes a transmission shaft 331 and second bevel gears 332 mounted at both ends of the transmission shaft. One end of the transmission shaft passes through the cover plate, and the second bevel gear at that end meshes with the first bevel gear. The other end of the transmission shaft extends to the rotating seat, and the second bevel gear at that end meshes with the gear structure around the rotating seat. The rotation of the motor drives the transmission shaft to rotate, which in turn drives the rotating seat to rotate, causing the drum to rotate.

[0029] The lifting assembly is located above the cover plate and has a housing 41 that encloses the drive assembly and a lifting rod 42 for hoisting. In actual use, it can be used with external lifting equipment to lift the lifting rod, so that the rotating roller assembly can be lifted away from the plating tank or lowered into the plating tank. When the roller assembly is placed into the plating tank during rotation, it is removed from the lifting equipment. At this time, the cover plate presses the sealing element tightly under its own weight and the gravity of the roller and internal parts, so that the plating tank is sealed. Then, with the help of a vacuum machine, the internal vacuum treatment can be achieved. After the processing is completed, the vacuum is broken by filling with compressed air.

[0030] The technical content and features of this utility model have been disclosed above. However, those skilled in the art may still make various substitutions and modifications that do not depart from the spirit of this utility model based on the teachings and disclosures of this utility model. Therefore, the protection scope of this utility model should not be limited to the content disclosed in the embodiments, but should include various substitutions and modifications that do not depart from this utility model, and should be covered by the claims of this patent application.

Claims

1. A vacuum barrel plating apparatus for small-diameter parts, characterized in that... include: An electroplating tank assembly includes a plating tank and a cover plate. Two sets of vacuum connectors are embedded in the side wall of the plating tank, which are respectively connected to a vacuum machine and compressed air. A sealing ring is provided on the upper edge of the plating tank. The cover plate is pressed tightly against the sealing ring to make the inside of the plating tank sealed. Multiple sets of anode titanium blue are arranged in a ring inside the plating bath, forming a reaction zone in the middle; A rotary drum assembly includes a drive assembly located above a cover plate, a drum assembly located below the cover plate, and a transmission assembly. The drive assembly drives the drum assembly to rotate via the transmission assembly. The drum assembly is placed within a reaction zone formed by multiple sets of anode titanium baskets. The lifting assembly, located above the cover plate, works with external lifting equipment to lift the rotating roller assembly away from the plating tank or lower it into the plating tank.

2. The vacuum barrel plating apparatus for small-diameter parts according to claim 1, characterized in that: The roller assembly includes a fixed base, a rotating base, and a roller. The fixed base is connected to the lower end face of the cover plate via a connecting plate. The fixed base has a 45° inclined mounting surface. The roller is assembled on the mounting surface in conjunction with the rotating base. The rotating base has a toothed structure around its perimeter.

3. The vacuum barrel plating apparatus for small-diameter parts according to claim 2, characterized in that: The roller has a hexagonal structure.

4. The vacuum barrel plating apparatus for small-diameter parts according to claim 2, characterized in that: The drive assembly includes a motor fixed to the cover plate and a first bevel gear mounted on the motor shaft. The transmission assembly includes a transmission shaft and second bevel gears mounted at both ends of the transmission shaft. One end of the transmission shaft passes through the cover plate, and the second bevel gear at that end meshes with the first bevel gear. The other end of the transmission shaft extends to the rotating seat, and the second bevel gear at that end meshes with the gear structure of the rotating seat.

5. The vacuum barrel plating apparatus for small-diameter parts according to claim 1, characterized in that: The plating tank has a bottom plate and a tank body. The upper end of the tank body has a flange edge, and a sealing ring is provided on the surface of the flange edge. The sealing ring is provided in two sets, inner and outer.

6. The vacuum barrel plating apparatus for small-diameter parts according to claim 1, characterized in that: The plating tank is also equipped with a heating coil, and the two ends of the heating coil extend out of the side wall of the plating tank and are connected to heaters.

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