Aluminum oxide local protection screen shielding tool

Abstract

The utility model relates to a kind of aluminium oxidation local protection shielding tool, including frame body and several hanging piece modules;Frame body is square frame body structure;Several support cross beams are arranged in rectangular array mode in frame body, each support cross beam is horizontally arranged, and two ends are fixed with the two sides inner wall of frame body respectively;Two hooks are arranged on the top of frame body;Several workstations are evenly arranged on each support cross beam;Several hanging piece modules are detachably fixed on the corresponding workstation;Hanging piece module includes L-shaped support seat, elastic plastic block and pressure rod;L-shaped support seat is detachably fixed on the corresponding workstation of support cross beam;Elastic plastic block is fixed on the bottom plate upper surface of L-shaped support seat;Vertical plate of L-shaped support seat is horizontally fixed with horizontal plate, pressure rod is threadedly connected on horizontal plate, and pressure rod is vertically arranged and penetrates horizontal plate.The utility model quickly installs aluminium alloy parts to be anodized in batches, and the corresponding area is blocked plating.

Description

Technical Field

[0001] This utility model relates to the field of metal surface treatment technology, specifically to a local protective shielding fixture for aluminum oxide. Background Technology

[0002] Anodizing is an electrochemical oxidation process that forms an oxide film on aluminum products through a specific technique. During electrolysis, oxygen anions react with aluminum to produce the oxide film. As the film thickness increases, the resistance also increases, and the electrolysis current decreases. The oxide film reaches its maximum thickness when the rate of oxide formation on the aluminum surface balances the rate of chemical dissolution.

[0003] like Figure 1 The image shows an aluminum alloy automotive part. An oxide layer needs to be formed on its surface. The back has grooves in the middle and at both ends, which need to be shielded by the oxide layer. Normal shielding is done with tape, which requires trimming and is time-consuming, and there's a risk of it falling off and failing midway. Alternatively, applying protective adhesive is a more complex process (requiring application and drying), also requiring trimming and is time-consuming, and there's a risk of it falling off and failing.

[0004] Therefore, it is desirable to provide a local protective shielding fixture for aluminum oxide that can solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a local protective shielding fixture for aluminum anodizing, which enables rapid batch installation of aluminum alloy parts to be anodized and resist plating of the corresponding areas.

[0006] To achieve the above-mentioned objectives, this utility model provides a partial protective shielding fixture for aluminum anodizing, comprising a frame and several hanging modules.

[0007] The frame is a square frame structure;

[0008] The frame is provided with several supporting beams in a rectangular array. Each supporting beam is horizontally arranged and its two ends are fixed to the inner walls of the two sides of the frame.

[0009] The top of the frame is equipped with two hooks;

[0010] Each of the aforementioned support beams is evenly provided with several workstations;

[0011] Several of the aforementioned hanging modules are detachably fixed to their respective workstations;

[0012] Each of the hanging modules includes an L-shaped support base, an elastic plastic block, and a pressure rod;

[0013] The L-shaped support base is detachably fixed to the corresponding workstation on the support beam;

[0014] The elastic plastic block is fixed to the upper surface of the base plate of the L-shaped support;

[0015] A horizontal plate is fixed to the vertical plate of the L-shaped support base, and a pressure rod is threadedly connected to the horizontal plate. The pressure rod is vertically arranged and passes through the horizontal plate.

[0016] Preferably, a reinforcing rod is fixed between the two hooks, and the two ends of the reinforcing rod are welded to the two hooks respectively.

[0017] Preferably, each station of the supporting beam is threaded with several supporting bolts, all of which are horizontally arranged and have threaded holes at their ends;

[0018] The L-shaped support base has a vertically shaped through hole on its vertical plate, and a fixing bolt is inserted into the through hole.

[0019] Preferably, the elastic plastic block has a contoured protrusion facing the groove on the aluminum alloy part that needs to be shielded.

[0020] Preferably, the lower end of the pressure rod has a conical structure with the smaller end facing downwards.

[0021] This utility model provides a local protective shielding fixture for aluminum anodizing, which has the following advantages compared with the prior art:

[0022] (1) By installing an elastic plastic block on the hanging module and setting a pressure bar above it, the aluminum alloy parts to be anodized can be effectively fixed, while shielding the corresponding groove area and avoiding the production of oxide layer in these parts;

[0023] (2) Simple structure and easy to use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of an aluminum alloy part in the background art;

[0025] Figure 2 This is a schematic diagram of the frame structure in this embodiment;

[0026] Figure 3 This is a schematic diagram of the structure of a mounting module on the frame in this embodiment;

[0027] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle;

[0028] Figure 5 This is a schematic diagram of the structure of a partial protective shielding fixture for aluminum oxide in this embodiment. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1

[0031] A local protective shielding fixture for aluminum oxidation includes a frame 1 and several hanging modules 2.

[0032] like Figure 2 As shown, the frame 1 is a square frame structure; several supporting beams 3 are arranged in a rectangular array inside the frame 1, each of the supporting beams 3 is horizontally arranged, and both ends are fixed to the inner walls of the two sides of the frame 1 respectively.

[0033] The top of the frame 1 is provided with two hooks 4, which facilitate hanging the frame 1 on the external copper busbar for electrical conduction. Furthermore, a reinforcing rod 5 is fixed between the two hooks 4, and the two ends of the reinforcing rod 5 are welded to the two hooks 4 respectively, so as to play a stabilizing role.

[0034] Each of the aforementioned support beams 3 is evenly provided with several workstations. For example... Figure 3 As shown, several of the hanging modules 2 are detachably fixed on their respective workstations.

[0035] like Figure 4 As shown, each of the hanging modules includes an L-shaped support base 6, an elastic plastic block 7, and a pressure rod 8; the L-shaped support base 6 is detachably fixed to the corresponding work position on the support beam 3; the elastic plastic block 7 is fixed to the upper surface of the base plate of the L-shaped support base 6; a horizontal plate 9 is horizontally fixed on the vertical plate of the L-shaped support base 6, and a pressure rod 8 is threaded onto the horizontal plate 9, the pressure rod 8 being vertically set and penetrating the horizontal plate 9.

[0036] In this embodiment, as Figure 4 As shown, each station of the supporting beam 3 is threaded with several supporting bolts 10. The supporting bolts 10 are all horizontally arranged and have threaded holes 11 at their ends. The vertical plate of the L-shaped support seat 6 is vertically provided with a waist-shaped through hole 12, and a fixing bolt 13 is inserted into the waist-shaped through hole 12. This arrangement facilitates the adjustment of the height of the L-shaped support seat 6 and makes it convenient to place the aluminum alloy parts to be anodized.

[0037] In this embodiment, the elastic plastic block 7 has a contoured protrusion 14 facing the groove on the aluminum alloy part that needs to be shielded; on the one hand, the contoured protrusion can effectively position the aluminum alloy part, and on the other hand, the contoured protrusion can fit tightly in the groove, thus effectively preventing plating.

[0038] In this embodiment, as Figure 4As shown, the lower end of the pressure rod 8 has a conical structure 15 with the smaller end facing downwards. This design, based on the process principle and contact limitations, prevents the acid from fully contacting the contact area between the hanger and the workpiece during oxidation treatment due to the tight contact. This prevents the oxidation reaction from occurring normally in these areas, resulting in an uncoated state. Oxidation requires hanger points, and it is permissible for these hanger points to be uncoated. The area of ​​the hanger points should be minimized as much as possible without affecting the pressing of the material. In addition, the hanger points are usually selected in non-critical appearance surfaces or areas that do not have a significant impact on product performance. Even if these hanger points are uncoated, it will not affect the overall function and appearance quality of the product.

[0039] like Figure 5 As shown, an elastic plastic block 7 is installed on the base plate of the L-shaped support 6. Several contoured protrusions 14, identical in shape to the parts of the component requiring shielding, are machined onto the elastic plastic block 7. The grooves of the aluminum alloy component requiring shielding are inserted into the contoured protrusions 14 on the elastic plastic block, and then a pressure rod 8 presses the aluminum alloy component firmly against the elastic plastic block 7. The parts of the component requiring shielding are in close contact with the elastic plastic block 7, shielding the current and preventing the formation of an oxide layer on these parts.

[0040] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A local protective shielding fixture for aluminum anodizing, characterized in that, Includes the frame and several mounting modules; The frame is a square frame structure; The frame is provided with several supporting beams in a rectangular array. Each supporting beam is horizontally arranged and its two ends are fixed to the inner walls of the two sides of the frame. The top of the frame is equipped with two hooks; Each of the aforementioned support beams is evenly provided with several workstations; Several of the aforementioned hanging modules are detachably fixed to their respective workstations; Each of the hanging modules includes an L-shaped support base, an elastic plastic block, and a pressure rod; The L-shaped support base is detachably fixed to the corresponding workstation on the support beam; The elastic plastic block is fixed to the upper surface of the base plate of the L-shaped support; A horizontal plate is fixed to the vertical plate of the L-shaped support base, and a pressure rod is threadedly connected to the horizontal plate. The pressure rod is vertically arranged and passes through the horizontal plate.

2. The aluminum oxide local protection shielding fixture according to claim 1, characterized in that, A reinforcing rod is fixed between the two hooks, and the two ends of the reinforcing rod are welded to the two hooks respectively.

3. The aluminum oxide local protection shielding fixture according to claim 1, characterized in that, Each station of the supporting beam is threaded with several supporting bolts, all of which are horizontally arranged and have threaded holes at their ends. The L-shaped support base has a vertically shaped through hole on its vertical plate, and a fixing bolt is inserted into the through hole.

4. The aluminum oxide local protection shielding fixture according to claim 3, characterized in that, The elastic plastic block has a contoured protrusion that corresponds to the groove on the aluminum alloy part that needs to be shielded.

5. A local protective shielding fixture for aluminum anodizing according to any one of claims 1 to 4, characterized in that, The lower end of the pressure rod has a conical structure with the smaller end facing downwards.

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