An efficient anodic oxidation fixture and its usage method

Abstract

The present invention provides an efficient anodic oxidation fixture, which includes a bracket and hanging rods. The bracket is a vertical square frame structure, and a plurality of cross bars are arranged on the bracket. A plurality of hanging rods are horizontally arranged on the cross bars. The hanging rod includes a rod body and elastic claws. A plurality of elastic claws are arranged at intervals on the rod body. The elastic claws are evenly distributed in a ring with at least two elastic pieces. The elastic pieces are intersectingly connected to the rod body. The present invention provides an efficient anodic oxidation fixture. By providing the elastic claws, the elastic claws can support the inner hole of the workpiece at multiple points inside, so as to stably fix the workpiece. The fixture has a simple and compact structure, is convenient to operate, can meet the requirements of mass production, and can clamp more workpieces with the same volume compared with the prior art, and has a higher production efficiency.

Description

Technical Field

[0001] The present invention belongs to the field of anodic oxidation, and particularly relates to an anodic oxidation fixture for an aluminum alloy workpiece with holes. Background Art

[0002] Due to the excellent comprehensive properties of aluminum alloy materials, aluminum alloy products are widely used in military and civilian industries. In order to improve the corrosion resistance of aluminum alloy materials, most workpieces need to be subjected to sulfuric acid anodic oxidation. During the production and processing of sulfuric acid anodic oxidation, strict requirements are imposed on the electrical conductivity of parts and tooling, and during the anodic oxidation process, the bath solution needs to be filtered and stirred. A special anodic oxidation fixture is required to ensure that the fixture firmly clamps the workpiece during the anodic oxidation process to guarantee the anodic oxidation quality of the workpiece.

[0003] Chinese Patent with publication number CN208884021U discloses an anodic oxidation fixture, which includes a suspension assembly. The suspension assembly includes multiple suspension groups. Each suspension group includes a disc sleeved on the outer circle of a connecting rod, and a fixing sleeve placed above the disc. The fixing sleeve is connected to the disc and sleeved on the outer circle of the connecting rod. A connecting sleeve is provided at the side end of the fixing sleeve, and the fixing sleeve and the connecting sleeve are communicated. A tightening bolt B horizontally penetrates through the connecting sleeve. A plurality of hanging members arranged in an equal circumferential arrangement are provided on the outer circumference of the disc. Each hanging member is composed of two titanium alloy hanging rods, one on top and one at the bottom. The workpiece is fixed by the elasticity of the hanging member. The overall fixture is cylindrical, while the plating tank is usually square, resulting in low utilization rate of the plating tank space. At the same time, only the outermost end of the hanging member is used to fix the workpiece, leading to low utilization rate of the fixture space and affecting production efficiency. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an efficient anodic oxidation fixture. By providing spring claws, the spring claws can support the inner hole of the workpiece at multiple points inside, thereby stably fixing the workpiece. The fixture has a simple and compact structure, is easy to operate, can meet the requirements of mass production. Compared with the prior art, more workpieces can be clamped in the same volume, and the production efficiency is relatively high.

[0005] The present invention is achieved through the following technical solutions:

[0006] An efficient anodic oxidation fixture, comprising a bracket and hanging rods. The bracket is a vertical square frame structure, and several cross bars are arranged on the bracket. Several hanging rods are horizontally arranged on the cross bars. Each hanging rod includes a rod body and spring claws. Several spring claws are arranged at intervals on the rod body. Each spring claw is annularly and evenly distributed with at least two elastic pieces. The elastic pieces are intersectedly connected to the rod body. When clamping a workpiece, the inner hole of the workpiece is sleeved on the spring claws, squeezing the elastic pieces to generate elastic force. At the same time, the outer extending ends of the elastic pieces can support the inner hole of the workpiece at multiple points inside, thus stably fixing the workpiece. This fixture has a simple and compact structure, is convenient to operate, and can meet the requirements of mass production. Compared with the prior art, the whole fixture is square, which is more matched with the space of the plating bath and has a high utilization rate. At the same time, the workpieces can be continuously sleeved on the hanging rods, and the space utilization rate of the hanging rods is high. More workpieces can be clamped with the same volume, and the production efficiency is relatively high.

[0007] The structure of the elastic piece is triangular. One side of the elastic piece is fixed on the rod body, and the outer extending part of the elastic piece is an angle of the triangle, reducing the contact area with the workpiece and ensuring more sufficient contact between the workpiece and the plating solution, thereby ensuring the quality of anodic oxidation.

[0008] The side surface of the elastic piece is a circular arc concave towards the rod body. On the one hand, it provides sufficient elastic force for the elastic piece to ensure firm clamping of the workpiece. On the other hand, it further reduces the contact area between the elastic piece and the workpiece, further ensuring the quality of anodic oxidation.

[0009] The outer extending angle of the elastic piece is a spherical structure, avoiding scratching the inner hole of the workpiece and ensuring the quality of the workpiece.

[0010] The spring claws open towards the cross bar side, facilitating workpiece clamping.

[0011] The hanging rods are symmetrically distributed on both sides of the cross bar, making the weights on both sides of the fixture balanced, ensuring the stability of the whole fixture during anodic oxidation, and further ensuring the quality of anodic oxidation.

[0012] A hook is arranged at the top end of the bracket, which can be hung in the plating bath for convenient operation.

[0013] The hook is located in the middle of the top end of the bracket, and reinforcing ribs are arranged on both sides of the hook to ensure the strength of the bracket.

[0014] The hook is located on both sides of the top end of the bracket. When the fixture is heavy after clamping the workpiece, the two ends are more stable when hanging.

[0015] A handle is arranged on the hook, which is convenient for the operator to operate the fixture.

[0016] Horizontal support legs are arranged on both sides of the bottom of the bracket, which can make the fixture stably placed on the ground.

[0017] A method for using an efficient anodic oxidation fixture, characterized in that the method comprises the following steps:

[0018] First step, clamping: First, put the tooling 8 on the hanging rod, then put the inner hole of the workpiece 7 on the tooling 8, and pull out the tooling 8 to complete the clamping of the workpiece.

[0019] Second step, anodic oxidation: Anodize the fixture holding the workpiece 7.

[0020] Third step, disassembly: After the workpiece 7 undergoes anodic oxidation, put the tooling 8 on the hanging rod 2, insert the tooling 8 into the inner hole of the workpiece 7, remove the workpiece 7, and then pull out the tooling 8 to complete the disassembly of the workpiece 7.

[0021] Using the tooling to disassemble and assemble the workpiece is convenient for operation, avoids scratching the inner hole of the workpiece during the disassembly and assembly process, and ensures the quality of anodic oxidation.

[0022] The beneficial effects of the present invention are as follows:

[0023] Compared with the prior art, by setting the elastic claws, the elastic claws can support the inner hole of the workpiece at multiple points inside, thus stably fixing the workpiece. The fixture has a simple and compact structure, is convenient for operation, can meet the requirements of mass production, and has a high production efficiency. By setting the triangular elastic sheet structure, and the side of the elastic sheet is a circular arc concave into the rod body, on the one hand, it provides sufficient elasticity for the elastic sheet to ensure the stable clamping of the workpiece, and on the other hand, it reduces the contact area with the workpiece to ensure more sufficient contact between the workpiece and the plating solution, thereby ensuring the quality of anodic oxidation. By setting spherical support points on the elastic sheet, it avoids scratching the inner hole of the workpiece and ensures the quality of the workpiece. The hanging rods are symmetrically distributed on the fixture, making the weights on both sides of the fixture balanced, ensuring the stability of the entire fixture during anodic oxidation, and further ensuring the quality of anodic oxidation. By setting the hooks, handles and support legs, the operation is convenient and the production efficiency is further improved. Using the tooling to disassemble and assemble the workpiece is convenient for operation, avoids scratching the inner hole of the workpiece during the disassembly and assembly process, and ensures the quality of anodic oxidation. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present invention;

[0025] Figure 2 It is a schematic structural diagram of the hanging rod of Embodiment 1 of the present invention;

[0026] Figure 3 It is a schematic structural diagram of the bracket of Embodiment 1 of the present invention;

[0027] Figure 4 It is a schematic diagram of clamping the workpiece in Embodiment 1 of the present invention;

[0028] Figure 5 It is a schematic structural diagram of Embodiment 2 of the present invention;

[0029] Figure 6It is a schematic structural diagram of the bracket in the second embodiment of the present invention.

[0030] In the figure: 1 - bracket, 2 - hanging rod, 3 - cross bar, 4 - hook, 5 - handle, 6 - support leg, 7 - workpiece, 8 - tooling, 21 - rod body, 22 - elastic piece. Detailed implementation manners

[0031] The technical solution of the present invention will be further described below, but the scope of protection is not limited thereto.

[0032] Example 1

[0033] As Figures 1 to 3 shown, an efficient anodic oxidation hanging tool includes a bracket 1 and a hanging rod 2. The bracket 1 is a vertical square structure. A plurality of cross bars 3 are arranged on the bracket 1, and a plurality of hanging rods 2 are horizontally arranged on the cross bars 3. The hanging rod 2 includes a rod body 21 and elastic claws. A plurality of elastic claws are arranged at intervals on the rod body 21. The elastic claws are evenly distributed in a ring shape with at least two elastic pieces 22. The elastic pieces 22 are intersectedly connected to the rod body 21. When the workpiece 7 is clamped, the inner hole of the workpiece 7 is sleeved on the elastic claws, and the elastic pieces 22 are squeezed to generate elastic force. At the same time, the outer extending ends of the elastic pieces 22 can support the inner hole of the workpiece 7 at multiple points inside, so as to stably fix the workpiece 7. This hanging tool has a simple and compact structure, is convenient to operate, and can meet the requirements of mass production. Compared with the prior art, the whole hanging tool is square, which is more matched with the space of the plating tank and has a high utilization rate. At the same time, the workpiece 7 can be continuously sleeved on the hanging rod 2, and the space utilization rate of the hanging rod 2 is high. More workpieces 7 can be clamped with the same volume, and the production efficiency is relatively high.

[0034] The structure of the elastic piece 22 is triangular. One side of the elastic piece 22 is fixed on the rod body 21, and the outer extending part of the elastic piece 22 is an angle of the triangle, reducing the contact area with the workpiece 7 and ensuring that the workpiece 7 is in more sufficient contact with the plating solution, thereby ensuring the quality of anodic oxidation.

[0035] The side surface of the elastic piece 22 is a circular arc concave towards the rod body 21. On the one hand, it provides sufficient elastic force for the elastic piece 22 to ensure the stable clamping of the workpiece 7. On the other hand, it further reduces the contact area between the elastic piece 22 and the workpiece 7, further ensuring the quality of anodic oxidation.

[0036] The outer extending angle of the elastic piece 22 is a spherical structure, avoiding scratching the inner hole of the workpiece 7 and ensuring the quality of the workpiece 7.

[0037] The elastic claws open towards the cross bar 3, facilitating the clamping of the workpiece 7.

[0038] The hanging rods 2 are symmetrically distributed on both sides of the cross bar 3, making the weights on both sides of the hanging tool balanced, ensuring the stability of the whole hanging tool during anodic oxidation, and further ensuring the quality of anodic oxidation.

[0039] A hook 4 is provided at the top end of the bracket 1, which can be hung in the plating tank, making the operation convenient.

[0040] A handle 5 is provided on the hook 4, and reinforcing ribs are provided on both sides of the hook 4 to ensure the strength of the bracket.

[0041] Horizontal support legs 6 are provided on both sides of the bottom of the bracket 1 to facilitate the operator to operate the fixture.

[0042] Example 2

[0043] Such as Figure 4 、 Figure 5 As shown, on the basis of the structure of the first embodiment, the hook 4 is located on both sides of the top end of the bracket 1. When the fixture after clamping the workpiece is heavy, the two ends are more stable when suspended. The operator can hold the fixture with both hands, which is convenient for operation and also increases the safety of the operation.

[0044] A method for using an efficient anodic oxidation fixture, the method comprising the following steps:

[0045] The first step, clamping: First, a tooling 8 is sleeved on the hanging rod. A through hole is provided in the center of the tooling 8. The outer diameter of the tooling 8 is smaller than the inner hole of the workpiece 7. The size of the through hole of the tooling 8 meets the requirement that it can be sleeved on the hanging rod 2. Then, the inner hole of the workpiece 7 is sleeved on the tooling 8, and the tooling 8 is pulled out to complete the clamping of the workpiece.

[0046] The second step, anodic oxidation: The fixture clamping the workpiece 7 is subjected to anodic oxidation.

[0047] The third step, disassembly: After the workpiece 7 has been anodized, the tooling 8 is sleeved on the hanging rod 2, and the tooling 8 is inserted into the inner hole of the workpiece 7. The workpiece 7 is removed, and then the tooling 8 is pulled out to complete the disassembly of the workpiece 7.

[0048] By using the tooling to disassemble and assemble the workpiece, the operation is convenient, the inner hole of the workpiece 7 is prevented from being scratched during the disassembly and assembly process, and the anodic oxidation quality is ensured.

[0049] An efficient anodic oxidation fixture provided by the present invention can stably fix a workpiece by arranging spring claws that can support the inner hole of the workpiece at multiple points inside, and the fixture has a simple and compact structure, is convenient to operate, can meet the requirements of mass production, and has high production efficiency. By arranging a triangular spring piece structure, and the side surface of the spring piece is a circular arc concave towards the rod body, on the one hand, sufficient elasticity is provided for the spring piece to ensure firm clamping of the workpiece, and on the other hand, the contact area with the workpiece is reduced to ensure more sufficient contact between the workpiece and the plating solution, thereby ensuring the anodic oxidation quality. By arranging spherical support points on the spring piece, scratching of the inner hole of the workpiece is avoided, and the quality of the workpiece is ensured. The hanging rods are symmetrically distributed on the fixture, making the weights on both sides of the fixture balanced, ensuring the stability of the entire fixture during anodic oxidation, and further ensuring the anodic oxidation quality. By arranging hooks, handles and support legs, the operation is convenient, and the production efficiency is further improved. By disassembling and assembling the workpiece through a tooling, the operation is convenient, scratching of the inner hole of the workpiece during the disassembly and assembly process is avoided, and the anodic oxidation quality is ensured.

Claims

1. An efficient anodic oxidation fixture, characterized in that: It includes a bracket (1) and a hanging rod (2). The bracket (1) is a vertical square structure. A number of cross bars (3) are arranged on the bracket (1), and a number of hanging rods (2) are horizontally arranged on the cross bars (3). The hanging rod (2) includes a rod body (21) and spring claws. A number of spring claws are arranged at intervals on the rod body (21). The spring claws are evenly distributed in a circular shape with at least two elastic pieces (22). The elastic pieces (22) are intersectedly connected to the rod body (21), and the spring claws open towards the cross bar (3).

2. The highly efficient anodic oxidation fixture according to claim 1, wherein: The elastic piece (22) has a triangular structure, and one side of the elastic piece (22) is fixed on the rod body (21).

3. The efficient anodic oxidation jig according to claim 2, characterized in that: The side surface of the elastic piece (22) is a circular arc concave towards the rod body (21).

4. The highly efficient anodic oxidation fixture according to claim 2, wherein: The outward-extending corner of the elastic piece (22) is a spherical structure.

5. The highly efficient anodic oxidation jig according to claim 1, wherein: The hanging rods (2) are symmetrically distributed on both sides of the cross bar (3).

6. An efficient anodic oxidation jig as claimed in claim 1, characterized in that: A hook (4) is arranged at the top of the bracket (1).

7. The efficient anodic oxidation fixture according to claim 6, characterized in that: A handle (5) is arranged on the hook (4).

8. An efficient anodic oxidation jig as claimed in claim 1, characterized in that: Horizontal support legs (6) are arranged on both sides of the bottom of the bracket (1).

9. A method for using an efficient anodic oxidation hanging tool as described in any one of claims 1-8, characterized in that, The method includes the following steps: The first step, clamping: First, put a tooling (8) on the hanging rod (2), then put the inner hole of the workpiece (7) on the tooling (8), and pull out the tooling (8) to complete the clamping of the workpiece (7). The second step, anodic oxidation: Anodize the fixture clamping the workpiece (7). The third step, disassembly: After the workpiece (7) undergoes anodic oxidation, put the tooling (8) on the hanging rod (2), insert the tooling (8) into the inner hole of the workpiece (7), remove the workpiece (7), and then pull out the tooling (8) to complete the disassembly of the workpiece (7).

Images