CN218932337U

CN218932337U - Hard anodized clamping tool

Info

Publication number: CN218932337U
Application number: CN202222985635.4U
Authority: CN
Inventors: 肖薇; 胡祥军; 彭雄宇; 汪胜民; 朱洪达; 蔡增; 丁辰辉
Original assignee: Jiangxi Changhe Aviation Industries Co Ltd
Current assignee: Jiangxi Changhe Aviation Industries Co Ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-04-28
Anticipated expiration: 2032-11-10

Abstract

The utility model belongs to the field of part surface treatment, and particularly relates to a hard anodizing clamping tool. Comprises a hook, a supporting rod, a main supporting plate and an auxiliary cathode; the hooks are connected with the supporting rods through bolts, three extending arm rods are uniformly distributed on the supporting rods, clamping claws are welded at the end parts of the extending arm rods, and the clamping claws penetrate through the through holes in the main supporting plates and are fixed through nuts; and the main supporting plate is provided with conductive points. The parts are prevented from being knocked, the clamp can be reused, the material cost is saved, the clamping time is saved, and the qualification rate and the production efficiency of the hard anodized parts with the annular inner cavity surface are greatly improved. The fixture may be adapted for chromic acid anodized, sulfuric acid anodized, and other anodized like part attachments.

Description

Hard anodized clamping tool

Technical Field

The utility model belongs to the field of part surface treatment, and particularly relates to a hard anodizing clamping tool.

Background

The anodic oxidation process is one of the surface treatment processes widely used and developed at present, and can form an oxide protective film on the surfaces of a plurality of metals such as aluminum, niobium, zinc, titanium and the like, wherein the most widely used anodic oxidation process is aluminum alloy. The anodic oxidation of aluminum alloy is to take an aluminum workpiece as an anode, put the aluminum workpiece into electrolyte, apply anode voltage for electrolysis, and form a layer of compact Al on the surface of aluminum ₂ O ₃ The oxide film has a double-layer structure composed of a dense barrier layer and a columnar porous layer.

The hard anodic oxidation is a thick layer anodic oxidation process, the thickness of the oxide film can reach 250-300 mu m, and the appearance is grey, brown to black. The oxide film has a high hardness, typically HV300-600, and has a hardness gradient depending on the alloy grade and the treatment process, with the hardness of the portion near the base being higher and the hardness of the outer layer being lower. The film layer has pores and can adsorb various lubricants, so that the antiwear capacity can be improved. The film layer has high electrical insulation, and the breakdown voltage is 1850V when the film thickness is 100 mu m, and can reach 2000V after being immersed in insulating paint. The melting point of the film is as high as 2050 ℃, the heat transfer coefficient is very low, and the film is a very good heat-resistant material. The hard oxide film has been increasingly used in industry due to its excellent properties. The wear-resistant alloy is mainly used for wear-resistant parts requiring high hardness, parts requiring insulation, parts resistant to airflow scouring and parts subjected to high temperature instantaneously.

At present, the general clamping mode of hard anodizing of parts adopts the mode of aluminum wire bundling, so that the clamping is time-consuming and labor-consuming, the parts are easy to deform, a large amount of materials are consumed, the clamping of the parts with complex shapes is difficult, the parts are easy to be shocked or compressed, or the hard film layers are easy to oxidize in non-hard areas, and the quality of the film layers of the parts is seriously affected.

Disclosure of Invention

The utility model aims to provide a stereoplasm anodize clamping frock for supplementary large-scale fork ear part stereoplasm anodize, not only the clamping is convenient, repeatedly usable, save material, and with part clamping point area of contact is little, can make the part rete even.

Technical proposal

A hard anodizing clamping tool comprises a hook 1, a supporting rod 2, a main supporting plate 3 and an auxiliary cathode 4; the hooks 1 are connected with the supporting rods 2 through bolts, three extending arm rods are uniformly distributed on the supporting rods 2, clamping claws are welded at the end parts of the extending arm rods, and the clamping claws penetrate through holes in the main supporting plate 3 and are fixed through nuts; and the main supporting plate 3 is provided with conductive points.

An auxiliary cathode 4 is vertically arranged in the middle of the support rod 2 and is connected through a threaded rod;

further, the hook 1 is made of red copper.

Further, the strut 2 is composed of an aluminum alloy.

Further, the main pallet 3 is made of an aluminum alloy.

Further, the main supporting plates 3 arranged on the three extension arm rods are positioned on the same horizontal plane.

Further, the auxiliary cathode 4 is made of lead.

Further, insulating gaskets are respectively arranged at the upper end and the lower end of the auxiliary cathode 4.

Further, the surface of the part to be anodized should be clad with the working surface of the auxiliary cathode 4.

The surface roughness of the conductive points is smaller than Ra0.8, the conductive points are rounded, and the chamfer R is more than 0.5 mm.

Technical effects

The hard anodizing tool can thoroughly solve the problems of difficult assembly and hanging of hard anodized parts in a large annular inner cavity, troublesome isolation and engraving, large area of the clamp and the parts, time and material waste in clamping, uneven film and air compression, and can ensure that the parts keep stable and do not shake in the anodizing process, avoid collision of the parts, the clamp can be repeatedly used, the material cost is saved, the clamping time is saved, and the qualification rate and the production efficiency of the hard anodized parts on the annular inner cavity surface are greatly improved. The fixture may be adapted for chromic acid anodized, sulfuric acid anodized, and other anodized like part attachments.

Drawings

FIG. 1 is a front view of a hard anodizing clamping tool;

FIG. 2 is a left side view of the hard anodizing clamping tool;

FIG. 3 is a schematic view of a hard anodized clamping tooling part hanger;

wherein, 1-couple, 2-branch, 3-layer board, 4-auxiliary cathode.

Detailed Description

The utility model is further described below with reference to examples. The following description is of some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The specific implementation mode is as follows:

the hard anodizing tool comprises a hook 1, a supporting rod 2, a main supporting plate 3 and an auxiliary cathode 4; the method comprises the steps of carrying out a first treatment on the surface of the The method is characterized in that:

firstly, fixing a part support arm by a supporting plate 3 and a supporting rod 2 through nuts, keeping the part horizontal under the support of a conductive point, and tightening the nuts after the conductive point is completely contacted with the part to ensure good conductivity; the auxiliary cathode is arranged in the middle, so that the inner cavity film layer is uniform without being additionally arranged, and the partial film layer is not caused by no compressed air. The clamping hanger is of a 3-angle support type, keeps the parts horizontal and the most stable, and can change the distance between three supporting plates according to the thickness of the straight arm of the parts.

Examples

The tool is realized through the following scheme: a hard anodizing clamping tool comprises a hook 1, a supporting rod 2, a main supporting plate 3 and an auxiliary cathode 4; the hooks 1 are connected with the supporting rods 2 through bolts, three extending arm rods are uniformly distributed on the supporting rods 2, clamping claws are welded at the end parts of the extending arm rods, and the clamping claws penetrate through holes in the main supporting plate 3 and are fixed through nuts; and the main supporting plate 3 is provided with conductive points.

further, the hook 1 is made of red copper.

Further, the strut 2 is composed of an aluminum alloy.

Further, the main pallet 3 is made of an aluminum alloy.

Further, the auxiliary cathode 4 is made of lead.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. While the foregoing is directed to embodiments of the present utility model, other and further details of the utility model may be had by the present utility model, it should be understood that the foregoing description is merely illustrative of the present utility model and that no limitations are intended to the scope of the utility model, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the utility model.

Claims

1. The hard anodizing clamping tool is characterized by comprising a hook (1), a supporting rod (2), a main supporting plate (3) and an auxiliary cathode (4); the hook (1) is connected with the supporting rod (2) through bolts, three extending arm rods are uniformly distributed on the supporting rod (2), clamping claws are welded at the end parts of the extending arm rods, and the clamping claws penetrate through holes in the main supporting plate (3) and are fixed through nuts; the main supporting plate (3) is provided with conductive points, the middle part of the supporting rod (2) is vertically provided with an auxiliary cathode (4) which is connected through a threaded rod.

2. The hard anodizing clamping tool of claim 1, wherein the hook (1) is made of red copper.

3. The hard anodizing clamping tool of claim 1, wherein the supporting rod (2) is made of aluminum alloy.

4. A hard anodized clamping tooling as claimed in claim 1 wherein the main support plate (3) is comprised of an aluminum alloy.

5. The hard anodizing clamping tool according to claim 1, wherein the main supporting plates (3) arranged on the three extension arm rods are positioned on the same horizontal plane.

6. The hard anodizing fixture according to claim 1, wherein the auxiliary cathode (4) is composed of lead.

7. The hard anodizing clamping tool according to claim 1, wherein insulating gaskets are respectively arranged at the upper end and the lower end of the auxiliary cathode (4).

8. The hard anodizing clamping tool according to claim 1, wherein the surface of the part to be anodized is coated with the working surface of the auxiliary cathode (4); the surface roughness of the conductive points is smaller than Ra0.8, the conductive points are rounded, and the chamfer R is more than 0.5 mm.