Foldable hanger for anodizing of automobile parts

Abstract

The utility model provides a kind of foldable hanger for automobile parts anodizing, it is related to hanger technical field, including main hanger, side hanger and middle folding support, the both sides of main hanger are all welded and connected with side hanger, the tail end pivot of side hanger is connected with middle folding support with cooperation rotation, the upper and lower of the head and tail ends of middle folding support are all welded with positioning conductive strip, the head and tail ends of middle folding support are all rotationally connected with side hanger, the tail end of side hanger is welded with conductive limiting block, positioning conductive strip tail end and conductive limiting block top recess engage. Side hanger and middle folding support cooperate to realize U-shaped folding, reduce the width of overall hanger, reduce space occupation, save factory storage space, reduce the difficulty of moving in factory before installation, solve the problem that hanger is difficult to move in factory, hanger is prone to deformation in the process of transportation and collision with other equipment.

Description

Technical Field

[0001] This utility model relates to the field of hanging fixtures for anodizing, and in particular to a foldable hanging fixture for anodizing automotive parts. Background Technology

[0002] Anodizing is used on automotive parts such as exterior components and interior parts to achieve personalized color schemes and enhance wear resistance. The parts are suspended on a hanger and then immersed in an electrolyte solution. An external current is applied to form a dense and hard oxide film on the metal surface.

[0003] To ensure the conductivity of the hangers, the existing hangers are fixed by welding. The hangers are relatively large and occupy a lot of space, making transportation and storage inconvenient. Furthermore, the hangers are difficult to move within the factory when the production line is adjusted, and they are prone to deformation due to collisions with other equipment during transportation. Utility Model Content

[0004] This utility model provides a foldable hanger for anodizing automotive parts. The side hanger and the center folding bracket work together to achieve a U-shaped fold, reducing the overall width of the hanger, minimizing space occupation, saving factory storage space, reducing the difficulty of moving it in the factory before installation, reducing the possibility of deformation caused by collisions with other equipment during transportation, and ensuring smooth current flow by the fit of the positioning conductive strip and conductive limiting block. This avoids localized high temperatures caused by poor contact at the rotating connection of the side hanger and the center folding bracket, which could interfere with the anodizing of surrounding parts.

[0005] This utility model provides a foldable hanger for anodizing automotive parts, specifically including a main hanger, side hangers, and a center folding bracket. Side hangers are welded to both sides of the main hanger, and the center folding bracket is rotatably connected to the rear end of the side hangers via a pivot. A lower extension bracket is slidably connected to the lower end of the main hanger, and side connecting lugs are welded to both sides of the lower end of the main hanger. Side connecting bolts are connected through the side connecting lugs. An upper hook is welded to the upper end of the main hanger. The main hanger, side hangers, and center folding bracket are made of titanium alloy or brass. The upper hook has a U-shaped structure and is adapted to the suspension track of the anodizing production line.

[0006] Furthermore, side connecting lugs are welded to both sides of the upper and lower ends of the lower extension frame. Side connecting bolts pass through and press the side connecting lugs of the lower extension frame and the main bracket, which are aligned vertically. The lower extension frame and the main bracket are in close contact to ensure smooth current flow.

[0007] Furthermore, the side bracket is provided with a spaced array of suspension brackets, which are adapted to different structural components such as automotive stamping parts and die casting parts. The upper end of the suspension bracket is provided with a positioning screw, and the tail end of the side bracket is welded with a conductive limiting block.

[0008] Furthermore, the positioning screw and the side bracket are threaded together. The positioning screw presses the suspension bracket from above, and the upper end face of the suspension bracket and the upper surface of the side bracket remain in close contact. The suspension bracket can be disassembled and assembled through the positioning screw, so as to replace the suspension bracket corresponding to different structural components.

[0009] Furthermore, positioning conductive strips are symmetrically welded to the top and bottom of both ends of the middle folding bracket. The positioning conductive strips are U-shaped spring sheet structures. Side hangers are rotatably connected to both ends of the middle folding bracket. After the side hangers cooperate with the middle folding bracket to achieve U-shaped folding, the overall width of the hanger is further reduced.

[0010] Furthermore, the tail end of the positioning conductive strip and the conductive limiting block are slidably engaged. When the side bracket and the middle folding bracket are unfolded to a 180° symmetrical state, the spherical protrusion at the tail end of the positioning conductive strip engages with the top groove of the conductive limiting block, and the U-shaped spring sheet structure positioning conductive strip engages with the groove of the conductive limiting block, generating stable contact pressure on the spring sheet structure side bracket.

[0011] Furthermore, the middle folding bracket is fixedly connected to the suspension bracket by a screw-in positioning screw. The positioning screw passes through the suspension bracket and is screwed into the threaded hole of the middle folding bracket or the side bracket, locking the gap between the suspension bracket and the middle folding bracket or the side bracket to ensure smooth electrical conductivity. Side brackets are welded to both sides of the lower extension bracket. The addition of the lower extension bracket enables the side brackets to be stacked vertically, increasing the number of suspension brackets.

[0012] This utility model provides a foldable hanger for anodizing automotive parts, which has the following advantages: During transportation or storage, the side hangers and the center folding bracket work together to achieve U-shaped folding, reducing the overall width of the hanger, reducing space occupation, saving factory storage space, reducing the difficulty of moving it in the factory before installation, and reducing the possibility of deformation caused by collisions with other equipment during transportation.

[0013] After the side bracket and the middle folding bracket are unfolded to a 180° symmetrical position, the positioning conductive strip and the conductive limiting block engage to achieve limiting. At the same time, the engagement of the positioning conductive strip and the conductive limiting block ensures smooth current flow and avoids local high temperature caused by poor contact at the rotating connection of the side bracket and the middle folding bracket, which could interfere with the anodizing of surrounding components and result in uneven anodized film thickness. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0016] In the attached diagram: Figure 1 This invention provides a schematic diagram of the side mounting bracket and the center folding bracket when unfolded to a 180° symmetrical state. Figure 2 This invention provides a structural schematic diagram of the side mounting bracket and the center folding bracket in their folded states. Figure 3 A schematic diagram of the folding bracket structure in this application is shown; Figure 4 A schematic diagram of the side mounting structure of this application is shown; Figure 5 A schematic diagram of the positioning conductive strip of this application is shown; Figure 6 A schematic diagram of the folding bracket in this application is shown; Figure label: 1. Main bracket; 101. Lower extension bracket; 102. Side connecting ear plate; 103. Side connecting bolt; 104. Upper hook; 2. Side bracket; 201. Suspension bracket; 202. Positioning screw; 203. Conductive limiting block; 3. Middle folding bracket; 301. Positioning conductive strip. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] Example 1: Please refer to Figures 1 to 6 : This utility model proposes a foldable mounting bracket for anodizing automotive parts, including a main bracket 1, side brackets 2, and a center folding bracket 3. A lower extension bracket 101 is slidably connected to the lower end of the main bracket 1. Side connecting lugs 102 are welded to both sides of the lower end of the main bracket 1, and side connecting bolts 103 are threaded through the side connecting lugs 102. An upper hook 104 is welded to the upper end of the main bracket 1. The main bracket 1, side brackets 2, and center folding bracket 3 are primarily made of titanium alloy or brass. The upper hook 104 has a U-shaped structure. 04. The suspension track is adapted to the anodizing production line. Side connecting lugs 102 are welded to both sides of the upper and lower ends of the lower extension frame 101. Side connecting bolts 103 pass through and press the side connecting lugs 102, which are aligned vertically with the main hanger 1, to ensure smooth current flow. Side hangers 2 are welded to both sides of the lower extension frame 101. The addition of the lower extension frame 101 allows the side hangers 2 to be stacked vertically, increasing the number of suspension brackets 201 and the number of suspendable components. The main mounting bracket 1 has side mounting brackets 2 welded to both sides. Suspension brackets 201 are arranged in a spaced array on the side mounting brackets 2. The suspension brackets 201 are adapted to different structural components such as automotive stampings and die-castings. A positioning screw 202 passes through the upper end of the suspension bracket 201. A conductive limiting block 203 is welded to the tail end of the side mounting bracket 2. The positioning screw 202 is threadedly connected to the side mounting bracket 2, pressing the suspension bracket 201 from above. The upper surface of the suspension bracket 201 and the upper surface of the side mounting bracket 2 remain in close contact. The mounting bracket 201 is disassembled and assembled using the positioning screw 202, allowing for the replacement of the corresponding mounting bracket 201 for different structural components. The tail end of the side bracket 2 is rotatably connected to the middle folding bracket 3. The middle folding bracket 3 is fixedly connected to the mounting bracket 201 by the screwed positioning screw 202. The positioning screw 202 passes through the mounting bracket 201 and is screwed into the threaded hole of the middle folding bracket 3 or the side bracket 2, locking the gap between the mounting bracket 201 and the middle folding bracket 3 or the side bracket 2 to ensure smooth electrical conductivity.

[0019] In this embodiment, positioning conductive strips 301 are symmetrically welded to the top and bottom of both ends of the middle folding bracket 3. The positioning conductive strips 301 are U-shaped spring sheet structures. Both ends of the middle folding bracket 3 are rotatably connected to side hangers 2. After the side hangers 2 cooperate with the middle folding bracket 3 to achieve U-shaped folding, the overall width of the hanger is further reduced, the space occupancy rate is reduced, the factory storage space is effectively saved, the difficulty of movement is further reduced, and the deformation caused by collision with other equipment during transportation is reduced.

[0020] In this embodiment, the tail end of the positioning conductive strip 301 and the conductive limiting block 203 are slidably engaged. When the side bracket 2 and the middle folding bracket 3 are unfolded to a 180° symmetrical state, the spherical protrusion at the tail end of the positioning conductive strip 301 engages with the top groove of the conductive limiting block 203. The U-shaped spring-loaded positioning conductive strip 301 engages with the groove of the conductive limiting block 203. The spring-loaded side bracket 2 generates stable contact pressure, ensuring that the two fit tightly together, controlling the contact resistance, ensuring that the growth rate of the anodic oxide film on the surface of the automotive parts is consistent and the film thickness is uniformly distributed, and avoiding local high temperature caused by poor contact and high resistance, which may interfere with the stability of the electrolyte.

[0021] In this second embodiment, based on the first embodiment, a conductive pad is added to the contact end between the suspension bracket 201 and the automotive component to further reduce the contact resistance. The welding joints of the main bracket 1, side bracket 2, and center folding bracket 3 are all made using silver brazing to ensure uniform conductivity of the entire bracket. Drainage grooves are provided at the pivots, bolts, and engagement points of all components such as the main bracket 1, side bracket 2, and center folding bracket 3, allowing the electrolyte to flow quickly along the drainage grooves and preventing electrolyte residue.

[0022] The working principle of this embodiment is as follows: After the side bracket 2 and the middle folding bracket 3 work together to achieve U-shaped folding, the overall width of the hanger is further reduced, the space occupancy rate is reduced, and the factory storage space is effectively saved. After folding, the overall size of the hanger is compact and the center of gravity is concentrated, which can be stacked for transportation, increasing the single transport capacity of forklifts and improving transportation efficiency. When moving the hanger before installation in the factory, no special lifting equipment is required, and it can be quickly moved manually, further reducing the difficulty of movement and reducing the deformation caused by collisions with other equipment during transportation. It is suitable for the multi-station flow requirements of the anodizing production line. After folding, the hanger is easy to deploy and store quickly, shortening the hanger switching time when changing production lines. It solves the problems of existing anodizing hangers having fixed structures, not being foldable, having high space occupancy rates, inconvenient transportation and storage, and being difficult to move in the factory. When the side bracket 2 and the center folding bracket 3 are unfolded to a 180° symmetrical position, the U-shaped spring-loaded positioning conductive strip 301 engages with the groove of the conductive limiting block 203. The spring-loaded side bracket 2 generates stable contact pressure, ensuring a tight fit between the two, controlling contact resistance, and ensuring a consistent growth rate and uniform thickness distribution of the anodized film on the surface of the automotive parts. This avoids localized high temperatures caused by poor contact and high resistance, which could interfere with the stability of the electrolyte. The stable engagement and limiting prevent relative rotation of the brackets during anodizing, further ensuring the consistency of the oxide film thickness and improving the anodizing effect of the automotive parts. The oxidation pass rate; the U-shaped spring structure of the positioning conductive strip 301 has an elastic compensation function. After multiple folds, it can still maintain stable contact pressure and conductivity, avoiding the conductivity decay caused by long-term use of traditional hangers, and ensuring that the oxidation quality of each batch of parts in mass production is uniform and stable; the addition of the lower extension frame 101 below the main hanger 1 realizes the stacking of the side hangers 2, increases the number of suspension brackets 201, and increases the number of hangable parts. The detachable suspension brackets 201 can be replaced with special hangers according to different automotive parts such as door trim strips, stamped brackets, and aluminum alloy shells.

[0023] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only involve structures relevant to the embodiments disclosed herein; other structures may refer to general designs.

[0024] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0025] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A foldable hanger for anodizing automotive parts, comprising: The main hanger (1), the side hanger (2) and the middle folding bracket (3) are characterized in that the side hanger (2) is welded to both sides of the main hanger (1), the middle folding bracket (3) is rotatably connected to the tail end of the side hanger (2), the upper and lower ends of the middle folding bracket (3) are welded with positioning conductive strips (301), and the side hanger (2) is rotatably connected to both ends of the middle folding bracket (3).

2. The foldable hanger for anodizing automotive parts according to claim 1, characterized in that, The lower end of the main bracket (1) is slidably connected to the lower extension bracket (101). Side connecting ear plates (102) are welded on both sides of the lower end of the main bracket (1). Side connecting ear plates (102) are connected through side connecting bolts (103). The upper end of the main bracket (1) is welded to the upper hook (104).

3. A foldable hanger for anodizing automotive parts according to claim 2, characterized in that, Side connecting ear plates (102) are welded to both sides of the upper and lower ends of the lower extension frame (101). Side connecting bolts (103) pass through and press the side connecting ear plates (102) of the lower extension frame (101) and the main hanging frame (1) which are aligned vertically.

4. A foldable hanger for anodizing automotive parts according to claim 3, characterized in that, The side hanger (2) is provided with a spaced array of suspension brackets (201), with a positioning screw (202) passing through the upper end of the suspension bracket (201), and a conductive limiting block (203) welded to the tail end of the side hanger (2).

5. A foldable hanger for anodizing automotive parts according to claim 4, characterized in that, The positioning screw (202) and the side bracket (2) are threaded together. The positioning screw (202) presses the suspension bracket (201) from above, and the upper end face of the suspension bracket (201) and the upper surface of the side bracket (2) remain in close contact.

6. A foldable hanger for anodizing automotive parts according to claim 5, characterized in that, The tail end of the positioning conductive strip (301) and the conductive limiting block (203) are slidably engaged. When the side bracket (2) and the middle folding bracket (3) are unfolded to the 180° symmetrical state, the tail end of the positioning conductive strip (301) and the top groove of the conductive limiting block (203) are engaged.

7. A foldable hanger for anodizing automotive parts according to claim 6, characterized in that, The middle folding bracket (3) is fixedly connected to the suspension bracket (201) by the screwed positioning screw (202), and the lower extension bracket (101) has side hanging brackets (2) welded on both sides.

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