A fixture structure for a chrome plating production line and a chrome plating production line

Abstract

This application relates to a hanger structure for a chromium plating production line, including a main rod with a hook assembly. The hook assembly includes an adjustable hook and a fixed hook. The adjustable hook is located above the fixed hook and includes an adjustable support rod and an upper positioning post connected to the adjustable support rod. The fixed hook includes a fixed support rod and a lower positioning post connected to the fixed support rod. The upper and lower positioning posts are coaxial and opposite to each other, forming an adjustable placement area for placing cylindrical materials. This application uses the adjustable upper and lower positioning posts to form an adjustable placement space, facilitating the placement of cylindrical materials. Simultaneously, the upper and lower positioning posts fix the cylindrical materials, preventing them from detaching from the hanger during electroplating. Furthermore, the curved sides of the upper and lower positioning posts prevent scratching the cylindrical materials, ensuring a high electroplating yield.

Description

Technical Field

[0001] This application relates to the field of electroplating technology, and in particular to a fixture structure for a chromium plating production line and a chromium plating production line. Background Technology

[0002] Chromium plating is a key technology in the field of surface treatment. Due to its high coating hardness, strong corrosion resistance and excellent surface finish, it is widely used in automotive parts, hardware tools, hydraulic components and other fields. Among them, cylindrical materials are typical processing objects in the chromium plating process. Both the inner and outer walls of such materials need to form a uniform and defect-free chromium plating layer to meet the requirements of subsequent assembly accuracy and service life.

[0003] Existing cylindrical material hangers mostly use a single metal hook to suspend the material for electroplating. However, due to the fluidity of the liquid in the treatment tank, the stability of the single hook's fixing structure is poor. The flow and inertia of the plating solution can easily cause the material to shake and fall off. Furthermore, the hook tip can easily scratch the inner wall of the material, resulting in uneven plating and affecting the electroplating yield. Utility Model Content

[0004] This application provides a fixture structure and a chromium plating production line with higher stability.

[0005] This application provides a hanger structure for a chrome plating production line and a chrome plating production line, which adopts the following technical solution: A hanger structure for a chrome plating production line includes a main rod with a hook assembly. The hook assembly includes an adjustable hook and a fixed hook. The adjustable hook is located above the fixed hook. The adjustable hook includes an adjustable support rod and an upper positioning post connected to the adjustable support rod. The fixed hook includes a fixed support rod and a lower positioning post connected to the fixed support rod. The upper positioning post and the lower positioning post are coaxial and opposite to each other. An adjustable placement area is formed between the upper positioning post and the lower positioning post for placing cylindrical materials.

[0006] Preferably, both the upper positioning post and the lower positioning post are hollow cylindrical structures, with an upper limit boss formed on the upper part of the outer wall of the upper positioning post and a lower limit boss formed on the outer wall of the lower positioning post.

[0007] Preferably, the adjustable support rod is connected to the upper end of the upper positioning post and forms a guide groove. The guide groove is distributed at an acute angle to the upper end of the upper positioning post, and its end faces the center of the upper positioning post.

[0008] Preferably, a support platform is provided at the bottom of the lower positioning column, the support platform is connected to the inner wall of the lower positioning column, the fixed support rod is connected to the lower end of the support platform, and multiple fan-shaped openings and circular openings are formed on the support platform.

[0009] Preferably, there are two sets of hook assemblies, and the two sets of hook assemblies are symmetrically distributed in two columns.

[0010] A chromium plating production line includes a fixture structure for a chromium plating production line as described in any one of the above claims.

[0011] Preferably, it includes a processing tank and a gantry crane, the gantry crane being disposed above the processing tank and driven to connect to the hanging structure for the chrome plating production line.

[0012] In summary, this application includes at least one of the following beneficial technical effects: 1. This application uses an adjustable upper positioning post and a lower positioning post to form an adjustable placement space, which is convenient for placing cylindrical materials. At the same time, the upper and lower positioning posts work together to fix the cylindrical materials, so that the cylindrical materials will not fall off the hanger during the electroplating process. In addition, the upper and lower positioning posts with curved sides are not easy to scratch the cylindrical materials, thus ensuring the electroplating yield of the cylindrical materials.

[0013] 2. By setting an upper limit boss on the upper positioning post and a lower limit boss on the lower positioning post, the upper limit boss and the lower limit boss cooperate to prevent the cylindrical material from moving to the outer periphery of the fixed support rod or the outer periphery of the adjustable support rod during the electroplating process, thus ensuring the stability of the cylindrical material.

[0014] 3. By setting up a flow guide channel, the fluidity of the liquid inside the cylindrical material is increased. By setting up a fan-shaped outlet and a circular outlet below the lower positioning column, the channels for the liquid to enter the cylindrical material are increased, thereby improving the processing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the hook assembly in a preferred embodiment of this application.

[0017] Figure 3 This is a schematic diagram of the adjustable support rod in a preferred embodiment of this application.

[0018] Figure 4 This is a schematic diagram of the structure of the fan-shaped opening in a preferred embodiment of this application.

[0019] Figure 5 yes Figure 4 Enlarged view of section A.

[0020] Explanation of reference numerals in the attached drawings: 1. Main rod; 2. Hook assembly; 21. Adjustable hook; 211. Adjustable support rod; 211a. Flow guide channel; 212. Upper positioning post; 212a. Upper limit boss; 22. Fixed hook; 221. Fixed support rod; 222. Lower positioning post; 222a. Lower limit boss; 223. Support platform; 223a. Fan-shaped opening; 223b. Circular opening; 3. Reaction tank; 4. Gantry frame. Detailed Implementation

[0021] The present application will be further described in detail below with reference to the accompanying drawings.

[0022] This application provides a fixture structure for a chromium plating production line, such as... Figures 1 to 5 As shown, it includes a main rod 1, on which a hook assembly 2 is provided. There are two sets of hook assemblies 2, which are symmetrically distributed in two columns. Each column consists of multiple hook assemblies 2 evenly distributed longitudinally.

[0023] The hook assembly 2 includes an adjustable hook 21 and a fixed hook 22, with the adjustable hook 21 located above the fixed hook 22.

[0024] like Figure 3 As shown, the adjustable hook 21 includes an adjustable support rod 211 and an upper positioning post 212 connected to the adjustable support rod 211. The adjustable support rod 211 is fixed on the main rod 1. The adjustable support rod 211 is a metal support rod with a certain toughness and a bent middle section. Specifically, it is a soft steel column wrapped with an anti-corrosion shell. The end of the adjustable support rod 211 away from the main rod 1 can be bent under the action of external force.

[0025] like Figure 2 and Figure 3 As shown, the fixed hook 22 includes a fixed support rod 221 and a lower positioning post 222 connected to the fixed support rod 221. The fixed support rod 221 is fixed to the main rod 1. The end of the fixed support rod 221 away from the main rod 1 is connected to the lower end of the lower positioning post 222. The fixed support rod 221 is a stainless steel post covered by an anti-corrosion shell, which is not easy to be moved.

[0026] like Figure 3As shown, the upper positioning post 212 and the lower positioning post 222 are coaxial and arranged opposite to each other. The outer diameter of the upper positioning post 212 and the lower positioning post 222 is smaller than the inner diameter of the cylindrical material. An adjustable placement area is formed between the upper positioning post 212 and the lower positioning post 222. The adjustable parameter is the height. The placement area is used to place the cylindrical material. Specifically, when placing the cylindrical material, the adjustable support rod 211 is first moved to move the upper positioning post 212 up to a size that is large enough for the cylindrical material to be placed. The cylindrical material is moved to cooperate with the lower positioning post 222, and the lower positioning post 222 passes through the cylindrical material. Then, the adjustable support is moved to move the upper positioning post 212 from the top of the cylindrical material into the cylindrical material. When the minimum distance between the upper positioning post 212 and the lower positioning post 222 is less than the length of the cylindrical material, the cylindrical material will not detach during the electroplating process, thus completing the fixation of the cylindrical material.

[0027] Compared with the prior art, the fixture structure for a chromium plating production line of this application forms an adjustable placement space by means of an adjustable upper positioning post 212 and a lower positioning post 222, which is convenient for placing cylindrical materials. At the same time, the upper positioning post 212 and the lower positioning post 222 work together to fix the cylindrical materials, so that the cylindrical materials will not fall off the fixture during the electroplating process. In addition, the upper positioning post 212 and the lower positioning post 222, which have curved sides, are not easy to scratch the cylindrical materials, thus ensuring the electroplating yield of the cylindrical materials.

[0028] like Figure 3 As shown, both the upper positioning post 212 and the lower positioning post 222 are hollow cylindrical structures. During electroplating, the liquid can contact the interior of the cylindrical material through the hollow cylindrical structure. The upper part of the outer wall of the upper positioning post 212 has an upper limit boss 212a, and the outer wall of the lower positioning post 222 has a lower limit boss 222a. The diameters of the upper limit boss 212a and the lower limit boss 222a are larger than the inner circumference diameter of the cylindrical material. This is used to restrict the cylindrical material from moving to the outer circumference of the fixed support rod 221 or the outer circumference of the adjustable support rod 211 during the electroplating process, thus ensuring the stability of the cylindrical material.

[0029] like Figure 3 As shown, the end of the adjustable support rod 211 away from the main rod 1 is connected to the upper end of the upper positioning column 212 and forms a guide groove 211a. The guide groove 211a is distributed at an acute angle with the upper end of the upper positioning column 212, and the end faces the center of the upper positioning column 212. The guide groove is used to guide the liquid into the downward flow during the process of the cylindrical material moving upward from the treatment liquid, increasing the fluidity of the liquid inside the cylindrical material during the process, improving the liquid treatment efficiency, and also having a certain effect of improving the fluidity of the liquid during the soaking process of the cylindrical material.

[0030] like Figure 4 and Figure 5As shown, a support platform 223 is provided at the bottom of the lower positioning column 222. The support platform 223 is connected to the inner wall of the lower positioning column 222. The fixed support rod 221 is connected to the lower end of the support platform 223. Multiple fan-shaped openings 223a and circular openings 223b are formed on the support platform 223. Specifically, the multiple fan-shaped openings 223a are arranged circumferentially around the lower positioning column 222 on the support platform 223, and the circular openings 223b are arranged between two adjacent fan-shaped openings 223a. The fan-shaped openings 223a and the circular openings 223b are used to allow the processing liquid to flow into the interior of the cylindrical material to ensure the processing effect inside the cylindrical material.

[0031] This application also provides a chromium plating production line, such as Figure 1 As shown, a chrome plating production line fixture structure includes a treatment tank 3, a gantry frame 4, and any one of the above. The gantry frame 4 is positioned above the treatment tank 3 and is connected to the chrome plating production line fixture structure. There are multiple treatment tanks 3, each containing a liquid required for the chrome plating process. The gantry frame 4 is used to drive the chrome plating production line fixture structure, which is holding cylindrical materials, into the treatment tank 3 for immersion.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fixture structure for a chromium plating production line, characterized in that: The device includes a main rod (1) on which a hook assembly (2) is provided. The hook assembly (2) includes an adjustable hook (21) and a fixed hook (22). The adjustable hook (21) is located above the fixed hook (22). The adjustable hook (21) includes an adjustable support rod (211) and an upper positioning post (212) connected to the adjustable support rod (211). The fixed hook (22) includes a fixed support rod (221) and a lower positioning post (222) connected to the fixed support rod (221). The upper positioning post (212) and the lower positioning post (222) are coaxial and arranged opposite to each other. An adjustable placement area is formed between the upper positioning post (212) and the lower positioning post (222). The placement area is used to place cylindrical materials.

2. The fixture structure for a chromium plating production line according to claim 1, characterized in that: Both the upper positioning post (212) and the lower positioning post (222) are hollow cylindrical structures. The upper part of the outer wall of the upper positioning post (212) is formed with an upper limit boss (212a), and the outer wall of the lower positioning post (222) is formed with a lower limit boss (222a).

3. The fixture structure for a chromium plating production line according to claim 1, characterized in that: The adjustable support rod (211) is connected to the upper end of the upper positioning post (212) and forms a guide groove (211a). The guide groove (211a) is distributed at an acute angle to the upper end of the upper positioning post (212), and its end faces the center of the upper positioning post (212).

4. The fixture structure for a chromium plating production line according to claim 1, characterized in that: The bottom of the lower positioning column (222) is provided with a support platform (223), the support platform (223) is connected to the inner wall of the lower positioning column (222), the fixed support rod (221) is connected to the lower end of the support platform (223), and multiple fan-shaped openings (223a) and circular openings (223b) are formed on the support platform (223).

5. The fixture structure for a chromium plating production line according to claim 1, characterized in that: The hook assembly (2) has two sets, and the two sets of hook assemblies (2) are symmetrically distributed in two columns.

6. A chromium plating production line, characterized in that: Includes the fixture structure for a chrome plating production line as described in any one of claims 1 to 5.

7. A chromium plating production line according to claim 6, characterized in that: It includes a processing tank (3) and a gantry (4), the gantry (4) being positioned above the processing tank (3) and driven by the hanging structure of the chrome plating production line.

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