An automatic turnover type galvanizing device

Abstract

The utility model discloses an automatic overturning type galvanization device which is composed of a cathode main body, an auxiliary anode, an overturning mechanism and a positioning mechanism. The cathode main body comprises a hook, a cathode main rod, a first insulating plate and a second insulating plate. The hook, the first insulating plate, the second insulating plate and the cathode main rod are fixedly connected. The auxiliary anode and the insulating plate are connected in the form of a sliding pair and can be detached. The overturning mechanism comprises an air bag, a part rack and an overturning shaft. The air bag and the part rack are fixedly connected. The part rack and the overturning shaft are fixedly connected. The overturning shaft and the cathode main rod constitute a rotary pair. The positioning mechanism comprises a right limiting rod and a left limiting rod. Both of them are fixedly connected with the cathode main rod and used to restrict the rotation angle of the overturning mechanism. The part rack is used to place the products to be galvanized. The opening end faces right. The galvanization tool device is connected with a travelling crane system with the functions of rising and falling. The travelling crane system is connected with the roof.

Description

Technical Field

[0001] This invention relates to the field of electroplating tooling technology, and more specifically to an automatic flipping electroplating zinc device. Background Technology

[0002] Most existing workpieces are internally cavitary and have deep blind holes. After galvanizing, the internal cavity and the bottom of the blind holes must have a complete zinc layer without bubbles, and the thickness must be uniform throughout. With traditional tooling, galvanizing solutions accumulate in the blind holes and cannot drain, easily leaving marks at the bottom. After galvanizing, the zinc layer at the bottom of the internal cavity and blind holes is thin, uneven, dark, or even completely missing, resulting in poor zinc layer quality that does not meet process requirements. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic flipping electroplating zinc device.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] The present invention provides an automatic flipping electroplating zinc device, which consists of a cathode body, an auxiliary anode, a flipping mechanism, and a positioning mechanism;

[0006] The cathode body includes a hook, a cathode main rod, a first insulating plate, and a second insulating plate, and the hook, the first insulating plate, and the second insulating plate are fixedly connected to the cathode main rod;

[0007] The auxiliary anode is connected to the insulating plate via a sliding pair and is detachable.

[0008] The flipping mechanism includes an airbag, a parts rack, and a flipping shaft. The airbag is fixedly connected to the parts rack, the parts rack is fixedly connected to the flipping shaft, and the flipping shaft and the cathode main rod form a rotating pair.

[0009] The positioning mechanism includes a right limit rod and a left limit rod, both of which are fixedly connected to the cathode main rod to constrain the rotation angle of the flipping mechanism;

[0010] The products to be galvanized are placed on top of the parts rack, with the open end facing right.

[0011] The electro-galvanizing fixture is connected to a crane system with lifting and lowering functions, and the crane system is connected to the roof.

[0012] Tilting Mechanism: The center of gravity of the tilting mechanism and the product to be galvanized is located on the central axis. The tilting shaft is located to the left of the central axis of the tooling. Through mechanical calculations, the automatic tilting of the parts rack can be completed using a small airbag. The tilting can be achieved in conjunction with the left and right limit rods.

[0013] Auxiliary anode structure: The auxiliary anode adopts a dendritic fractal structure design, which extends deep into the interior of the product to be galvanized, forming a three-dimensional electric field distribution with the cathode main rod.

[0014] Before galvanizing, the parts are placed in a parts holder, and an auxiliary anode is installed at its open end, extending into the blind hole. After the fixture is placed in the tank, the airbag moves upward under buoyancy, and the parts holder is rotated counterclockwise to the right limit rod via the flipping shaft. At this time, the open end of the product is raised upward at an angle to ensure that the internal gas can be discharged during the galvanizing process, avoiding cavitation. The auxiliary anode and the cathode main rod form a three-dimensional electric field distribution, ensuring that a complete and uniform galvanized layer can be formed in the internal cavity and blind hole.

[0015] When the tooling is removed from the slot, the airbag loses buoyancy and moves downward under the action of gravity. The parts holder is rotated clockwise to the left limit rod via the flipping shaft. At this time, the opening end of the product is tilted downward, and the angle is reduced to a downward angle, which ensures that the inner cavity liquid can be discharged after removal from the slot and avoids leaving marks at the bottom of the blind hole.

[0016] Beneficial effects

[0017] This electroplating zinc fixture has a simple structure, is easy to operate, and has a certain degree of versatility. It realizes the automatic air venting and liquid drainage function for deep blind hole type workpieces, which can effectively improve the quality requirements of surface treatments such as degreasing, rust removal, activation, cleaning, zinc plating, brightening, and passivation of deep blind hole cylindrical workpieces. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the automatic exhaust and liquid drainage galvanizing device of this utility model. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Example

[0021] like Figure 1 As shown, the present invention provides an automatic flipping electroplating zinc device, which mainly consists of a cathode body, an auxiliary anode, a flipping mechanism, and a positioning mechanism.

[0022] The cathode body includes a hook 8, a cathode main rod 9, a first insulating plate 4, and a second insulating plate 7. The hook 8, the first insulating plate 4, and the second insulating plate 7 are fixedly connected to the cathode main rod 9.

[0023] The auxiliary anode 3 is connected to the insulating plate via a sliding pair and is detachable.

[0024] The flipping mechanism includes an airbag 6, a parts rack 10, and a flipping shaft 12. The airbag is fixedly connected to the parts rack, the parts rack is fixedly connected to the flipping shaft, and the flipping shaft and the cathode main rod form a rotating pair.

[0025] The positioning mechanism includes a right limiting rod 5 and a left limiting rod 11, both of which are fixedly connected to the cathode main rod 9 to constrain the rotation angle of the flipping mechanism.

[0026] The product 14 to be galvanized is placed on top of the parts rack 10, with the open end facing right.

[0027] The electro-galvanizing fixture is connected to the crane system 2, which has lifting and lowering functions, and the crane system 2 is connected to the roof 1.

[0028] Tilting mechanism: The center of gravity of the tilting mechanism and the product to be galvanized are located on the central axis. The tilting shaft is located 2-5 cm to the left of the central axis of the tooling. Through mechanical calculations, the automatic tilting of the parts rack can be completed using a small airbag. With the cooperation of the left and right limit rods, a tilting of ±5° can be achieved.

[0029] Auxiliary anode structure: The auxiliary anode adopts a dendritic fractal structure design, which extends deep into the interior of the product to be galvanized, forming a three-dimensional electric field distribution with the cathode main rod.

[0030] Before galvanizing, part 14 is placed in part holder 10, and auxiliary anode 3 is installed at its open end, extending into the blind hole. After the fixture is placed in the tank, airbag 6 moves upward under buoyancy, and part holder 10 is rotated counterclockwise to the right limit rod via rotating shaft 12. At this time, the open end of the product is raised upward at an angle of 5 degrees, ensuring that the internal gas can be discharged during the galvanizing process and avoiding cavitation. The auxiliary anode and the cathode main rod form a three-dimensional electric field distribution, ensuring that a complete and uniform galvanized layer can be formed in the internal cavity and blind hole.

[0031] When the tooling is removed from the slot, the airbag 6 loses buoyancy and moves downward under the action of gravity. The part holder 10 is rotated clockwise to the left limit rod via the flipping shaft 12. At this time, the opening end of the product is tilted downward, and the angle is reduced to 5 degrees downward, which ensures that the inner cavity liquid can be discharged after removal from the slot and avoids the formation of marks at the bottom of the blind hole.

Claims

1. An automatic flipping electroplating zinc plating device, characterized in that, It consists of a cathode body, an auxiliary anode, a flipping mechanism, and a positioning mechanism; The cathode body includes a hook, a cathode main rod, a first insulating plate, and a second insulating plate, and the hook, the first insulating plate, and the second insulating plate are fixedly connected to the cathode main rod; The auxiliary anode is connected to the insulating plate via a sliding pair and is detachable. The flipping mechanism includes an airbag, a parts rack, and a flipping shaft. The airbag is fixedly connected to the parts rack, the parts rack is fixedly connected to the flipping shaft, and the flipping shaft and the cathode main rod form a rotating pair. The positioning mechanism includes a right limit rod and a left limit rod, both of which are fixedly connected to the cathode main rod to constrain the rotation angle of the flipping mechanism; The products to be galvanized are placed on top of the parts rack, with the open end facing right; The electro-galvanizing tooling is connected to a crane system with lifting and lowering functions, and the crane system is connected to the roof. Before galvanizing, the parts are placed in the parts rack, and an auxiliary anode is installed at its open end, extending into the blind hole. After the tooling is put into the tank, the airbag moves upward under the action of buoyancy, and the parts rack is flipped counterclockwise to the right limit rod through the flipping shaft. At this time, the open end of the product is lifted upward. When the tooling is removed from the slot, it moves downward under the action of gravity. The parts rack rotates clockwise to the left limit rod via the flipping shaft. At this time, the open end of the product tilts downward.

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