An anodizing hanger

Abstract

This utility model discloses an anodizing fixture, including an anodizing fixture with a frame and hanging branches. Each hanging branch has a mounting rod and several hanging branches mounted on the mounting rod. The hanging branches have hooks for hanging workpieces. Each hanging branch has a central frame and hanging rods located on the left and right sides of the central frame and connected to it. The hanging rods are inclined rods. The two inclined rods on the left and right sides of the central frame form a funnel-shaped space that gradually expands from top to bottom. Two hanging hooks, staggered vertically, are provided on the front and rear sides of the central frame. One hanging hook is provided on the front or rear side of the inclined rod on the left, and correspondingly, one hanging hook is provided on the rear or front side of the inclined rod on the right. The three hanging hooks on the front side and the three hanging hooks on the rear side form a triangular space. Compared with the prior art, the efficiency of anodizing workpieces is improved.

Description

Technical Field

[0001] This utility model relates to the field of anodizing technology, and in particular to an anodizing fixture. Background Technology

[0002] In the manufacturing process of electronic products, anodizing is an indispensable step for metal parts. For example, to overcome defects in surface hardness, wear resistance, and insulation, an anodizing system is used to anodize the workpiece. During anodizing, an anode fixture with the metal part attached is placed in an anodizing tank containing an electrolyte solution. The metal part acts as the anode, immersing itself in the electrolyte solution for electrolysis, where an oxide film forms on the surface of the metal part. Existing anode fixtures include a frame and hanging rods. The frame is a vertically oriented hollow square frame structure. The top surface of the frame has hooks that allow it to be fixed and suspended in the anodizing tank, extending the frame into the tank. The frame has two vertically oriented, opposite vertical rods. Between the two vertical rods are several vertically spaced mounting rods, which lie horizontally in the left-right direction. Each mounting rod has an upper mounting rod and a lower mounting rod, which are vertically spaced. The bottom surface of the upper mounting rod protrudes downwards with a vertically oriented upper connecting rod, and the top surface of the lower mounting rod protrudes upwards with a vertically oriented connecting rod. The lower connecting rod is provided, and the hanging branch has an upper hanging branch and a lower hanging branch. The upper hanging branch extends in the front-back direction and is set on the lower end of the upper connecting rod, while the lower hanging branch extends in the front-back direction and is set on the upper end of the lower connecting rod. Both ends of the upper and lower hanging branches have protruding hooks, which are arranged parallel to each other and form a square space for the workpiece to be held in place. Each hook has a connecting block and a limiting block. The connecting block extends in the same direction as the mounting rod and is connected to the hanging branch. One end of the connecting block extends out of the hanging branch, and the limiting block is connected to the end of the connecting block extending out of the hanging branch. In application, the workpiece is a hollow square frame structure or a hollow square structure with one open side. The workpiece has a hollow cavity. An electrolyte solution is placed in an oxidation tank. Four limiting blocks on one hanging branch extend into the hollow cavity of the workpiece, securing each workpiece to its respective hanging branch. The hanging frame with the workpieces is then hung on the oxidation tank, immersing the frame in the electrolyte solution.

[0003] However, in the above-mentioned anodizing system, each hanging branch can only hang a single workpiece, resulting in a small workpiece load capacity of the anodizing hanger and low efficiency of a single anodizing process.

[0004] In view of this, the inventors of this case conducted in-depth research on the problem, which led to the creation of this case. Utility Model Content

[0005] The purpose of this invention is to provide an anodizing fixture to solve the problem of low anodizing efficiency in existing anodizing systems.

[0006] To achieve its purpose, this utility model adopts the following technical solution:

[0007] An anodizing fixture includes an anode fixture with a frame and hanging branches. The hanging branches have a mounting rod and several hanging branches mounted on the mounting rod. Each hanging branch has a hook for hanging workpieces, with the horizontal direction of the mounting rod as the front-to-back direction. Each hanging branch has a central frame and hanging rods located on the left and right sides of the central frame and connected to it. The hanging rods are inclined rods. The two inclined rods on the left and right sides of the central frame form a flared space that gradually expands from top to bottom. Two hanging hooks are provided on the front and rear sides of the central frame, which are staggered vertically. One hanging hook is provided on the front or rear side of the inclined rod on the left side, and correspondingly, one hanging hook is provided on the rear or front side of the inclined rod on the right side. The three hanging hooks on the front side and the three hanging hooks on the rear side form a triangular space.

[0008] The hanging frame is a hollow square structure that is set vertically. Several mounting rods are provided, and each mounting rod is laid horizontally in the hanging frame along the front-back direction. The front left or front right end of the hanging branch has three of the above-mentioned hanging hooks, and the rear right or rear left end of the hanging branch has three of the above-mentioned hanging hooks. The three hanging hooks on the same side form a triangular space for hanging the workpiece.

[0009] The intermediate frame has horizontal bars and diagonal bars. The horizontal bars are horizontally arranged in the left-right direction and connected to the top of the mounting rod. There are two diagonal bars. The two hanging rods are connected to the opposite sides of the two diagonal bars through connecting frames. The two diagonal bars are divided into a left diagonal bar and a right diagonal bar. The left diagonal bar and the right diagonal bar are arranged at opposite angles and form a trumpet structure that gradually expands from top to bottom. The lower ends of the left diagonal bar and the right diagonal bar are connected to the left end and the right end of the horizontal bar, respectively. The upper ends of the left diagonal bar and the upper ends of the right diagonal bar are connected. The connection point of the upper ends of the left diagonal bar and the right diagonal bar is the connection end. There is a hook on the front and rear sides of the connection end. There is a hook on the front right end of the horizontal bar and a hook on the rear left end of the horizontal bar.

[0010] The connecting frame has a horizontal part, a vertical part, and an arc-shaped part. The horizontal part is arranged horizontally in the left-right direction, and one end of the horizontal part is connected to the diagonal bar. The vertical part is erected on the end of the horizontal part facing away from the diagonal bar. The arc-shaped part is connected to the upper end of the vertical part and is a convex arc bar that bulges upward. The end of the arc-shaped part facing away from the vertical part is connected to the hanging rod. The hanging rod on the right side is provided with the aforementioned hanging hook that faces forward, and the hanging rod on the left side is provided with the aforementioned hanging hook that faces backward.

[0011] The hanging frame has an upper frame and a lower frame, both of which are hollow square structures. The upper and lower frames are arranged parallel to each other vertically, and the four corners of the upper and lower frames are connected by vertically arranged side rods. A middle rod is vertically arranged between the two side rods on the front side and between the two side rods on the rear side. The two middle rods are arranged parallel to each other front to back. Each mounting rod lies horizontally in the front-back direction and is spaced apart between the two middle rods in the vertical direction. Two oblique connecting rods are arranged between the side rods and the middle rods. The oblique connecting rods are inclined, with one end connected to the side rod and the other end connected to the end of the middle rod. The two oblique connecting rods form a flared structure that gradually narrows from the middle rod to the side rod. A horizontal connecting rod is connected between the upper end and the lower end of the two middle rods. The upper horizontal connecting rod is equipped with a hook that can be hooked and fixed to the oxidation tank.

[0012] A vertical connecting rod is erected on the top surface of the hanging frame, and the hook is provided on the top surface of the vertical connecting rod. The hook has a hook body, a limiting plate, and an adjusting rod. The hook body has a horizontal plate and a vertical plate. The horizontal plate is connected to the upper left side of the upper end of the vertical connecting rod in the left-right direction. The vertical plate is erected on the lower left side of the horizontal plate. The horizontal plate, the vertical plate, and the vertical connecting rod form a hook space with an open bottom surface that allows the anode plate to be confined within it. The limiting plate is an inclined plate that tilts upward from left to right. The lower end of the limiting plate is connected to the lower end of the vertical plate. The upper end of the limiting plate is connected to the vertical plate in a way that allows for left-right adjustment and fixation to the oxidation tank.

[0013] The vertical plate has a screw hole that runs through it in the left-right direction. The adjusting rod is screwed through the screw hole and pressed against the side of the limiting piece facing the vertical plate.

[0014] This novel anodizing fixture involves inserting a set of three hooks forming a triangular space into the hollow cavity of the workpiece. The workpiece is hooked onto these hooks, with two workpieces staggered on the same hanging branch. The hanging branches on the frame are then filled with workpieces, and the frame, now containing the workpieces, is hooked and fixed into an oxidation tank. The frame extends into the oxidation tank, which is filled with an electrolyte solution, ensuring all workpieces are immersed. Finally, an anodized film is formed on the workpieces by applying an external current. Compared to existing technologies, this fixture can hold two workpieces on a single hanging branch, significantly increasing the workpiece load capacity and improving the efficiency of anodizing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the anode hanger of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the hanging branch component of this utility model. Detailed Implementation

[0017] To further explain the technical solution of this utility model, a detailed description is provided below in conjunction with the accompanying drawings.

[0018] An anodizing fixture, such as Figures 1-2 As shown, the device includes an anode hanger. The top surface of the anode hanger is equipped with hooks 1 that can be hooked and fixed onto the oxidation tank. The specific structure of the oxidation tank and the method of anode oxidation are well-known technologies and will not be elaborated upon here. The top surface of the oxidation tank is equipped with an anode plate on which the hooks 1 are hooked. The anode hanger is suspended and hooked onto the anode plate and extends into the oxidation tank. The anode hanger has hanging branches and a hanging frame 2. The hanging branches have mounting rods 3 and several hanging branches mounted on the mounting rods 3, with the horizontal direction of the mounting rods 3 as the front-to-back orientation. The hanging branches are arranged at intervals along the front-back direction on the top surface of the mounting rod 3. Each hanging branch has a hook for hanging workpieces. The hanging frame 2, the hanging branches and the hooks are all made of conductive material. The hooks have a connecting block 4 and a limiting block 5. The connecting block 4 extends in the same direction as the mounting rod 3 and is connected to the hanging branch. That is, the connecting block 4 is welded to the hanging branch. One end of the connecting block 4 extends out of the hanging branch and is connected to the limiting block 5. The outer diameter of the limiting block 5 is larger than the outer diameter of the connecting block 5.

[0019] The improvement of this invention is that: the front left or front right end of the hanging branch has three hanging hooks, and correspondingly, the rear right or rear left end of the hanging branch has three hanging hooks. The three hanging hooks on the same side form a triangular space for hanging the workpiece. The hanging frame 2 is a hollow square structure with an upright arrangement. Several mounting rods 3 are provided, and each mounting rod 3 is horizontally arranged in the hanging frame 2 along the front-back direction. The hanging branch has a middle frame 6 and hanging rods 7 located on the left and right sides of the middle frame 6 and connected to the middle frame 6. The hanging rods 7 are inclined rods. The two inclined rods on the left and right sides of the middle frame 6 form a flared space that gradually expands from top to bottom. The front and rear sides of the middle frame 6 are each provided with two hanging hooks that are staggered vertically. The hooks are provided on the front or rear side of the inclined rod on the left, and correspondingly on the rear or front side of the inclined rod on the right. The three hooks on the front side and the three hooks on the rear side form a triangular space. Specifically, the intermediate frame 6 has a horizontal bar 61 and diagonal bars 62. The horizontal bar 61 is horizontally arranged in the left-right direction and welded to the top of the mounting rod 3. There are two diagonal bars 62. Two hanging rods 7 are connected to the opposite sides of the two diagonal bars 62 respectively through connecting frames 8. The two diagonal bars 62 are divided into a left diagonal bar 621 and a right diagonal bar 622. The left diagonal bar 621 and the right diagonal bar 622 are inclined relative to each other and form a flared structure that gradually expands from top to bottom. The lower ends of the left diagonal bar 621 and the right diagonal bar 622 are connected to the left and right ends of the horizontal bar 61, respectively. The upper ends of the left diagonal bar 621 and the right diagonal bar 622 are connected. The connection point between the upper ends of the left diagonal bar 621 and the right diagonal bar 622 is the connection end 623. The front and rear sides of the connection end 623 are provided with the aforementioned hook. The front right end of the horizontal bar 61 is provided with the aforementioned hook, and the rear left end of the horizontal bar 61 is provided with the aforementioned hook. The connecting frame 8 has a horizontal part 81, a vertical part 82, and an arc-shaped part 83. The horizontal part 81 is horizontally arranged in the left-right direction, and one end of the horizontal part 81 is connected to the diagonal bar 62. That is, the right end of the horizontal part 81 on the left side is connected to the left side of the left diagonal bar 621, and the right end of the horizontal part 822 on the right side is connected to the diagonal bar 62. The left end of 1 is connected to the right side of the right diagonal bar 622. The vertical part 82 is erected on the end of the horizontal part 81 facing away from the diagonal bar 62. The arc-shaped part 83 is connected to the upper end of the vertical part 82. The arc-shaped part 83 is a convex arc bar that bulges upward. The end of the arc-shaped part 83 facing away from the vertical part 82 is connected to the hanging rod 7. That is, the two ends of the convex arc bar are connected to the upper end of the vertical part and the upper end of the hanging rod 7, respectively. The hanging rod 7 on the right side is provided with the aforementioned hanging hook that faces forward. That is, the limiting block of the hanging hook is located at the front end of the connecting block. The hanging rod 7 on the left side is provided with the aforementioned hanging hook that faces backward. That is, the limiting block of the hanging hook is located at the rear end of the connecting block. The limiting blocks of all the above hanging hooks are set away from the hanging branch. The three hanging hooks on the same side constitute a set of hanging components.In application, each hanging branch has three hooks on both the front and rear sides. Workpieces are hung on the three hooks on the same side. The two sets of hanging components are staggered, allowing two workpieces to be placed on the front and rear sides of the same hanging branch respectively. A mounting rod 3 has several hanging branches, which greatly increases the workpiece load capacity of the entire anode fixture. Furthermore, the hanging rod 7 is inclined and can move elastically relative to the mounting rod 3, allowing the hooks on the hanging rod 7 to move a certain distance towards the inclined rod. The distance in the left-right direction of the triangular space can be adjusted left and right, facilitating the hooking of workpieces of different sizes onto the hanging components. Moreover, the hanging rod 7 has a certain degree of elasticity, allowing each hook to release elastic force to hook the workpiece. In other words, the three hooks have elastic force against the inner wall of the hollow cavity of the workpiece, making the workpiece more securely hooked onto the hooks.

[0020] This novel anodizing fixture involves inserting a set of three hooks forming a triangular space into the hollow cavity of the workpiece. The workpiece is hooked onto these hooks, with two workpieces staggered on the same hanging branch. The hanging branches on the frame are filled with workpieces, and the frame with the workpieces is then hooked and fixed onto the anode plate. The frame extends into the oxidation tank, where an electrolyte solution is placed to immerse all workpieces. Finally, an anodized film is formed on the workpieces by applying an external current. Compared to existing technologies, this fixture can hook and fix two workpieces on a single hanging branch, significantly increasing the workpiece load capacity and improving the efficiency of anodizing.

[0021] In this novel invention, the hanging frame 2 preferably comprises an upper frame 21 and a lower frame 22, both of which are hollow square structures. Specifically, each frame includes four rods connected sequentially to form a hollow square structure. The upper and lower frames are arranged parallel to each other vertically. The four corners of the upper and lower frames are connected by vertically arranged side rods 23. There are four side rods 23: the two rods on the front side are front side rods, and the two rods on the rear side are rear side rods. A middle rod 24 is vertically arranged between the two front side rods and between the two rear side rods. The two middle rods 24 are arranged parallel to each other front to back. Each mounting rod 3 lies horizontally along the front-back direction and is spaced apart between the two middle rods 24 along the vertical direction. A space is provided between the side rods 23 and the middle rods 24. Two oblique connecting rods 25 are provided, and the oblique connecting rods 25 are set at an angle. One end of the oblique connecting rod 25 is connected to the side rod 23, and the other end of the oblique connecting rod 25 is connected to the end of the middle rod 24. The two oblique connecting rods 25 form a horn structure that gradually narrows from the middle rod 24 to the side rod 23. That is, there are a total of eight oblique connecting rods 25. Four oblique connecting rods 25 are located on the front or rear side of the hanging frame. Four oblique connecting rods 25 are located at the upper and lower ends of the hanging frame. The two oblique connecting rods 25 at the upper front end and the two oblique connecting rods 25 at the upper rear end form a horn structure that gradually widens from top to bottom. The two oblique connecting rods 25 at the lower front end and the two oblique connecting rods 25 at the lower rear end form a horn structure that gradually narrows from top to bottom. The side rod 23, the middle rod 24, the oblique connecting rods 25 and the mounting rod 3 connected to the hanging frame are all conductive rods. During use, the addition of a slanted connecting rod 25 to the side of the hanging frame increases the auxiliary conductive contacts of the entire hanging frame, which distributes the current more evenly on the hanging frame, reduces the current density deviation of each hanging branch, and ensures that the thickness of the anodized film on the workpiece is uniform.

[0022] In this invention, preferably, a horizontal connecting rod 26 is connected between the upper ends and the lower ends of the two intermediate rods 24. The upper horizontal connecting rod 26 is provided with a hook 1 capable of being hooked and fixed to the anode plate. Specifically, two vertical connecting rods 261 are vertically arranged at intervals along the front-back direction on the top surface of the horizontal connecting rod 26. The two vertical connecting rods 261 are connected by a horizontal support rod 2611 extending along the front-back direction. The top surface of the vertical connecting rod 261 is connected to the hook 1. Two inclined support rods 262 are connected above the horizontal connecting rod 26. The inclined support rods 262 are inclined upwards, with their lower ends connected to the front and rear ends of the horizontal connecting rod 26, respectively. Their upper ends are connected to the opposite sides of the two vertical connecting rods 261, respectively. The hook 1 has a hook body 11 and a limiting piece 1. 2 and adjusting rod 13, hook body 11 has a horizontal plate and a vertical plate. The horizontal plate is connected to the upper left side of the vertical connecting rod 261 in the left-right direction. The vertical plate is set vertically below the left side of the horizontal plate. The horizontal plate, vertical plate and vertical connecting rod 261 form a hook space with an open bottom surface that allows the anode plate to be confined within. The limiting plate 12 is an inclined plate that is tilted upward from left to right. The lower end of the limiting plate 12 is connected to the lower end of the vertical plate. The upper end of the limiting plate is connected to the vertical plate in a way that can be adjusted and fixed to be hooked on the oxidation tank. That is, the vertical plate has a screw hole that runs through in the left-right direction. The adjusting rod 13 is screwed through the screw hole and pressed against the side of the limiting plate 12 facing the vertical plate. The end of the adjusting rod 13 facing away from the vertical plate is connected to a rotating handle. The horizontal connecting rod 26, vertical connecting rod 261 and hook 1 are all made of conductive material. In application, the anode plate is inserted into the hanging space, and the adjusting rod 13 is rotated. The adjusting rod 13 pushes the limiting plate 12, which moves towards the anode plate, clamping the anode plate between the limiting plate 12 and the vertical connecting rod 261. The hook can be disassembled, connected, adjusted, and fixed, making it convenient to remove the anode fixture from the oxidation tank.

[0023] The product form of this utility model is not limited to the illustrations and embodiments in this case. Any appropriate changes or modifications made to it based on similar ideas should be considered as not departing from the patent scope of this utility model.

Claims

1. An anodizing fixture, comprising an anodizing fixture, the anodizing fixture having a hanging frame and hanging branches, the hanging branches having a mounting rod and a plurality of hanging branches mounted on the mounting rod, the hanging branches having hooks for hanging workpieces, the front-back direction being the horizontal direction of the mounting rod; characterized in that: The hanging branch has a central frame and hanging rods located on the left and right sides of the central frame and connected to the central frame. The hanging rods are inclined rods. The two inclined rods on the left and right sides of the central frame form a trumpet-shaped space that gradually expands from top to bottom. There are two hanging hooks that are staggered vertically on the front and rear sides of the central frame. There is one hanging hook on the front or rear side of the inclined rod on the left side, and correspondingly, there is one hanging hook on the rear or front side of the inclined rod on the right side. The three hanging hooks on the front side and the three hanging hooks on the rear side form a triangular space.

2. The anodizing fixture according to claim 1, characterized in that: The hanging frame is a hollow square structure that is set vertically. Several mounting rods are provided, and each mounting rod is laid horizontally in the hanging frame along the front-back direction. The front left or front right end of the hanging branch has three of the above-mentioned hanging hooks, and the rear right or rear left end of the hanging branch has three of the above-mentioned hanging hooks. The three hanging hooks on the same side form a triangular space for hanging the workpiece.

3. The anodizing fixture according to claim 2, characterized in that: The intermediate frame has horizontal bars and diagonal bars. The horizontal bars are horizontally arranged in the left-right direction and connected to the top of the mounting rod. There are two diagonal bars. The two hanging rods are connected to the opposite sides of the two diagonal bars through connecting frames. The two diagonal bars are divided into a left diagonal bar and a right diagonal bar. The left diagonal bar and the right diagonal bar are arranged at opposite angles and form a trumpet structure that gradually expands from top to bottom. The lower ends of the left diagonal bar and the right diagonal bar are connected to the left end and the right end of the horizontal bar, respectively. The upper ends of the left diagonal bar and the upper ends of the right diagonal bar are connected. The connection point of the upper ends of the left diagonal bar and the right diagonal bar is the connection end. There is a hook on the front and rear sides of the connection end. There is a hook on the front right end of the horizontal bar and a hook on the rear left end of the horizontal bar.

4. The anodizing fixture according to claim 3, characterized in that: The connecting frame has a horizontal part, a vertical part, and an arc-shaped part. The horizontal part is arranged horizontally in the left-right direction, and one end of the horizontal part is connected to the diagonal bar. The vertical part is erected on the end of the horizontal part facing away from the diagonal bar. The arc-shaped part is connected to the upper end of the vertical part and is a convex arc bar that bulges upward. The end of the arc-shaped part facing away from the vertical part is connected to the hanging rod. The hanging rod on the right side is provided with the aforementioned hanging hook that faces forward, and the hanging rod on the left side is provided with the aforementioned hanging hook that faces backward.

5. An anodizing fixture according to claim 2, characterized in that: The hanging frame has an upper frame and a lower frame, both of which are hollow square structures. The upper and lower frames are arranged parallel to each other vertically, and the four corners of the upper and lower frames are connected by vertically arranged side rods. A middle rod is vertically arranged between the two side rods on the front side and between the two side rods on the rear side. The two middle rods are arranged parallel to each other front to back. Each mounting rod lies horizontally in the front-back direction and is spaced apart between the two middle rods in the vertical direction. Two oblique connecting rods are arranged between the side rods and the middle rods. The oblique connecting rods are inclined, with one end connected to the side rod and the other end connected to the end of the middle rod. The two oblique connecting rods form a flared structure that gradually narrows from the middle rod to the side rod. A horizontal connecting rod is connected between the upper end and the lower end of the two middle rods. The upper horizontal connecting rod is equipped with a hook that can be hooked and fixed to the oxidation tank.

6. An anodizing fixture according to claim 5, characterized in that: A vertical connecting rod is erected on the top surface of the hanging frame, and the hook is provided on the top surface of the vertical connecting rod. The hook has a hook body, a limiting plate, and an adjusting rod. The hook body has a horizontal plate and a vertical plate. The horizontal plate is connected to the upper left side of the upper end of the vertical connecting rod in the left-right direction. The vertical plate is erected on the lower left side of the horizontal plate. The horizontal plate, the vertical plate, and the vertical connecting rod form a hook space with an open bottom surface that allows the anode plate to be confined within it. The limiting plate is an inclined plate that tilts upward from left to right. The lower end of the limiting plate is connected to the lower end of the vertical plate. The upper end of the limiting plate is connected to the vertical plate in a way that allows for left-right adjustment and fixation to the oxidation tank.

7. An anodizing fixture according to claim 6, characterized in that: The vertical plate has a screw hole that runs through it in the left-right direction. The adjusting rod is screwed through the screw hole and pressed against the side of the limiting piece facing the vertical plate.

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