A double-hook anodizing fixture for skin parts

Abstract

The utility model relates to a kind of anodizing fixture for skin parts, belong to surface treatment technical field.A kind of skin part double-hook anodizing fixture, including hook, fixed chuck, movable chuck, the quantity of hook is two, is respectively installed fixed in the both ends of support frame, hook, support frame are fixed in travelling crane hanger;Fixed chuck, movable chuck are fixed together by bolt, and one end of fixed chuck is connected with double-hook by bolt;Skin is clamped, is lifted by travelling crane, support frame and double-hook one end contact, complete the step of lifting skin.The utility model has the following advantages: double-hook fixture can be combined, according to the size of part flexible adjustment sub-piece quantity and position;With travelling crane, realize large part once mounting, avoid repeated mounting disassembly complete part damage;Enhanced conductivity, prolonged service life, reduced maintenance difficulty, improved skin quality, reduced safety risk.

Description

Technical Field

[0001] This utility model relates to an anodizing fixture for skin parts, belonging to the field of surface treatment technology. Background Technology

[0002] When anodizing skin parts, clamping is required to ensure electrical circuit continuity and secure clamping. Existing fixtures have a simple structure, using sand casting for one-piece molding, where the hooks are embedded in the casting of the chuck simultaneously. Due to the characteristics of the anodizing process, corrosion is unavoidable during use. The hooks, made of steel for load-bearing requirements, corrode and rust, resulting in poor conductivity during anodizing and poor film quality, necessitating rework. However, skin parts have a limited number of rework cycles, increasing the risk of part scrap. The hooks and chucks are not detachable, making individual hook processing difficult. Furthermore, the cast aluminum chucks, due to their porous structure, contain numerous cracks and shrinkage cavities, making them more susceptible to corrosion each time parts are loaded into the groove, thus reducing their service life.

[0003] Because the skin parts are large, heavy, and require high precision in shape, they are equipped with special lifting lugs with lifting holes. When using existing clamps to clamp the skin parts, the clamps must first secure the skin lugs before hanging them together with the skin onto the conductive rod. If excessive torque is applied at the clamping point between the clamp and the lugs during the hanging process, it can cause localized deformation of the skin, affecting its overall quality and even causing cracks, rendering it unusable.

[0004] Furthermore, after the skin parts are anodized, they need to be disassembled and then mounted onto the paint spraying rack for painting. The disassembly and mounting process requires the cooperation of multiple people, and there are risks of impact and operator safety associated with the skin parts. Utility Model Content

[0005] The purpose of this invention is to provide a double-hook anodizing fixture for skin parts, which optimizes the mounting method and disassembly / mounting process of skin parts to the paint rack, thereby improving skin quality and reducing safety risks.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a double-hook anodizing fixture for skin parts, comprising hooks, a fixed clamp, and a movable clamp. The number of hooks is two, which are respectively installed and fixed at both ends of a support frame. The hooks and the support frame are fixed to a crane frame. The fixed clamp and the movable clamp are fixed together by bolts, and one end of the fixed clamp is connected to the double hooks by bolts. After the skin is clamped, it is lifted by a crane, and the support frame contacts one end of the double hooks, thus completing the step of lifting the skin.

[0007] Preferably, the fixed chuck has two clamping ends, each with a circular support surface. The top of the movable chuck is connected to the clamping end of the fixed chuck via a pin, and the bottom opening is used to engage with the clamping end of the other fixed chuck.

[0008] Preferably, the opening is a through hole, and a groove is made at the lower end of the through hole to facilitate the drainage of the liquid.

[0009] Preferably, the clamping end face of the fixed chuck and the bottom end face of the movable chuck are provided with interlocking toothed structures to increase the firmness of the contact.

[0010] Preferably, the hooks, support frames, and double hooks are made of No. 45 steel and are copper-plated.

[0011] Preferably, the fixed chuck and the movable chuck are made of hard aluminum material and are used to contact the parts.

[0012] Design principle: The hook, support frame, and double hook are all made of No. 45 steel to increase the overall load-bearing capacity of the clamp. They are electroplated with copper to increase the conductivity of the hook, so that the electrical circuit can be stably conducted and the quality of the anodized film layer can be guaranteed.

[0013] The double hooks are connected to the clamp body by fastening bolts. The connection point is rotatable, allowing for different angles when attaching the skin, increasing installation flexibility. The bolt connection also facilitates disassembly and maintenance. Due to the corrosive environment, the copper on the hooks corrodes, making the base material prone to rusting and reducing conductivity. Disassembly, rust removal, and re-copper plating can extend the hooks' lifespan.

[0014] The hooks and support frame are fixed to the overhead crane frame. After the skin is clamped by the fixtures, during the crane's lifting process, the support frame contacts one end of the double hooks, completing the lifting step of the skin for the anodizing process. After anodizing, during the crane's lowering process, the paint hanger contacts the other end of the double hooks, separating the double hooks from the support frame, completing the anodized transfer process for the paint hanger. This avoids the risk of surface quality issues caused by repeated disassembly and reassembly of the skin.

[0015] The chuck is made of hard aluminum, which enhances conductivity during the anodizing process, resulting in better product quality after plating. Compared to cast aluminum, it offers stronger corrosion resistance, extending the service life of the clamp.

[0016] A circular support column is formed on the clamping end face of the fixed chuck for load-bearing, and a hole is opened at the end of the movable chuck to fit the circular support column. This fit shape eliminates the need to clamp the skin lugs with the clamp first; the skin can be clamped after it is hung on the support frame, avoiding skin deformation and allowing the chuck to lift the skin parts more safely and stably.

[0017] The movable chuck has a through hole at one end, with a groove at the lower end to facilitate drainage of the liquid. The contact surfaces of the chucks have a toothed structure to increase the strength of the contact.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. The double hook clamps can be used in combination, and the number and position of the combined components can be flexibly adjusted according to the size of the parts;

[0020] 2. When used in conjunction with an overhead crane, large parts can be loaded and transferred between processes using only the cooperation of sub-components, without the need for reloading, thus avoiding damage to parts caused by repeated loading and unloading.

[0021] 3. Enhanced conductivity, extended service life, reduced maintenance difficulty, optimized the mounting method of skin parts and the process of disassembling and mounting them to the paint rack, improved skin quality and reduced safety risks. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0023] Figure 1 In the middle, 1. hook; 2. support frame; 3. double hook; 4. fastening bolt; 5. fixed clamp; 6. movable clamp; 7. fastening screw. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 The present invention is further described in detail as follows: A double-hook anodizing fixture for skin parts includes a hook 1, a support frame 2, double hooks 3, a fastening bolt 4, a fixed clamp 5, a movable clamp 6, and a fastening screw 7. The hook 1 and support frame 2 are fixed to a crane frame. After the skin is clamped by the fixture, during the crane lifting process, the support frame 2 contacts one end of the double hooks 3, completing the lifting step of the skin for the anodizing process. After anodizing, during the crane lowering process, the paint hanger contacts the other end of the double hooks 3, causing the double hooks 3 to separate from the support frame 2, completing the anodized transfer to the paint hanger process. This avoids the risk to surface quality caused by the skin being disassembled and reassembled again.

[0025] Specifically,

[0026] Hook 1, support frame 2, and double hook 3 are all made of 6mm thick No. 45 steel to increase the overall load-bearing capacity of the clamp. They are electroplated with copper to increase the conductivity of the hooks. Hook 1 is connected to support frame 2 by welding and fixed at both ends of support frame 2 for connecting the clamp to the conductive rod. Support frame 2 is used to suspend double hook 3. Double hook 3 is used to connect and fix clamp 5 and support frame 2.

[0027] The double hook 3 is connected to the main body of the clamp (fixed clamp 5, movable clamp 6) by fastening bolt 4. The connection can rotate, and different angles can be selected when hanging the skin, increasing the flexibility of the hanging; the fastening bolt 4 is made of No. 45 steel.

[0028] The fixed chuck 5 is made of hard aluminum, with a circular support column at its clamping end for load-bearing. The movable chuck 6 is also made of hard aluminum, with a through hole at its clamping end. It works in conjunction with the circular support column of the fixed chuck 5 to hang the skinned parts. A groove is cut at the lower end of the through hole to facilitate the drainage of the liquid. The contact surfaces of the fixed chuck 5 and the movable chuck 6 have a toothed structure to increase the firmness of the contact. The fastening bolt 7 is made of 45# steel and is used to tighten the connection between the fixed chuck 5 and the movable chuck 6.

Claims

1. A double-hook anodizing fixture for skinned parts, comprising hooks, a fixed clamp, and a movable clamp, characterized in that: The hooks are two in number and are respectively installed and fixed at both ends of the support frame. The hooks and the support frame are fixed to the crane frame. The fixed clamp and the movable clamp are fixed together by bolts. One end of the fixed clamp is connected to the double hook by bolts. After the skin is clamped, the crane lifts it, and the support frame contacts one end of the double hook, completing the step of lifting the skin.

2. The double-hook anodizing fixture for skinned parts according to claim 1, characterized in that: The fixed chuck has two clamping ends, each with a circular support surface. The top of the movable chuck is connected to the clamping end of the fixed chuck via a pin, and the bottom opening is used to mate with the clamping end of the other fixed chuck.

3. The double-hook anodizing fixture for skinned parts according to claim 2, characterized in that: The opening is a through hole, and a groove is cut at the lower end of the through hole to facilitate the drainage of the tank liquid.

4. The double-hook anodizing fixture for skinned parts according to claim 2, characterized in that: The fixed chuck clamping end face and the movable chuck bottom end face are provided with interlocking toothed structures to increase the firmness of the contact.

5. The double-hook anodizing fixture for skinned parts according to claim 1, characterized in that: The hooks, support frames, and double hooks are made of No. 45 steel and are copper-plated.

6. The double-hook anodizing fixture for skinned parts according to claim 1, characterized in that: The fixed and movable chucks are made of hard aluminum and are used to contact the parts.

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