CN204097585U - A kind of supplementary unit for cylindrical shell deep hole differential arc oxidation - Google Patents
A kind of supplementary unit for cylindrical shell deep hole differential arc oxidation Download PDFInfo
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- CN204097585U CN204097585U CN201420664787.7U CN201420664787U CN204097585U CN 204097585 U CN204097585 U CN 204097585U CN 201420664787 U CN201420664787 U CN 201420664787U CN 204097585 U CN204097585 U CN 204097585U
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Abstract
The utility model belongs to surface-treated metal conversion film field, particularly relates to a kind of supplementary unit for cylindrical shell deep hole differential arc oxidation.Conducting rod and studdle are vertically arranged on cylindrical shell respectively, back up pad, lower supporting plate is installed between conducting rod and studdle, on conducting rod and studdle, support set is set respectively between upper backup pad, lower supporting plate, the top of upper backup pad, on conducting rod 1 and studdle, install nut respectively, the bottom of lower supporting plate, on conducting rod and studdle, respectively lower nut is installed; Stainless steel electrode is through the center of upper backup pad, lower supporting plate, and be installed on the supporting structure of upper backup pad, lower supporting plate formation, one end of stainless steel electrode extends in cylindrical shell, and the other end of stainless steel electrode is connected wire respectively with conducting rod.In deep hole workpiece lumen, preparation meets the differential arc oxidation film layer of technical requirements, and make the electric force lines distribution in deep hole workpiece micro-arc oxidation process even, even film layer is consistent.
Description
Technical field
The utility model belongs to surface-treated metal conversion film field, particularly relates to a kind of supplementary unit for cylindrical shell deep hole differential arc oxidation.
Background technology
At present, the conventional aluminum alloys material parts differential arc oxidation carried out in Workshop Production adds man-hour, often in technology groove, both sides lifting pole plate is as negative electrode, and middle lifting workpiece carries out the processing method of differential arc oxidation as anode, thus obtains the uniform desirable differential arc oxidation film layer of thickness.
When design of part is complicated, when particularly surface of deep hole carries out differential arc oxidation, because power line cannot arrive at depths in hole, use aforesaid method to can not get the uniform desirable oxidized surface of thickness, cause the thicknesses of layers that workpiece cannot meet design requirement.Such as: workpiece for barrel shape is deep hole class, hole depth is the twice of diameter, when differential arc oxidation is carried out on inner cavity of deep hole surface, because electric force lines distribution is uneven, make the workpiece processed can not get desirable differential arc oxidization surface, intracavity bottom thickness is thin, and inner chamber upper thickness is thick, cause reprocessing of workpiece, thus have impact on quality and the qualification rate of product.
Utility model content
The purpose of this utility model is to provide a kind of supplementary unit for cylindrical shell deep hole differential arc oxidation, adopt the micro-arc oxidation of special auxiliary device, in deep hole workpiece lumen, preparation meets the differential arc oxidation film layer of technical requirements, make the electric force lines distribution in deep hole workpiece micro-arc oxidation process even, even film layer is consistent.By differential arc oxidation, wear resistance and the work-ing life of workpiece can be improved, reduce engine production cost.
The technical solution of the utility model is:
For a supplementary unit for cylindrical shell deep hole differential arc oxidation, this supplementary unit comprises: conducting rod, stainless steel electrode, upper backup pad, lower supporting plate, support set, studdle etc., and concrete structure is as follows:
Conducting rod and studdle are vertically arranged on cylindrical shell respectively, back up pad, lower supporting plate is installed between conducting rod and studdle, on conducting rod and studdle, support set is set respectively between upper backup pad, lower supporting plate, the top of upper backup pad, on conducting rod and studdle, install nut respectively, the bottom of lower supporting plate, on conducting rod and studdle, respectively lower nut is installed; Stainless steel electrode is through the center of upper backup pad, lower supporting plate, be installed on the supporting structure of upper backup pad, lower supporting plate formation, one end of stainless steel electrode extends in cylindrical shell, and for carrying out differential arc oxidation to cylinder inner surface, the other end of stainless steel electrode is connected wire respectively with conducting rod.
The described supplementary unit for cylindrical shell deep hole differential arc oxidation, conducting rod, stainless steel electrode, studdle and cylinder part medullary ray keeping parallelism, utilize upper backup pad, lower supporting plate, support set to fix stainless steel electrode, make it in the cylindrical shell of pressurized strut, keep plumbness.
The described supplementary unit for cylindrical shell deep hole differential arc oxidation, the distance of stainless steel electrode and cylindrical shell is within the scope of 15 ~ 20mm.
Design philosophy of the present utility model is:
In differential arc oxidation production process; because the electric force lines distribution in deep hole workpiece micro-arc oxidation process is uneven, the current density of use is comparatively large, for obtaining the uniform rete of thickness; suitable fixture must be designed, use supporting electrode, measure such as protection negative electrode and insulation shielding etc.The structure of fixture is that shape, size and the complexity according to part decides.The material used must not produce and dissolves and other chemical action in particular solution, and current-carrying part will have enough sectional areas, to ensure that electric current passes through smoothly.The utility model is by using supplementary unit, and solve inner cavity of deep hole differential arc oxidation film layer in uneven thickness, deep hole differential arc oxidation film layer gauge control is within 0.05 ~ 0.08mm, and rete is combined with matrix well, long term operation, non-scale, does not come off.It is reliable and stable that result shows to adopt the utility model, has the irreplaceable advantage of additive method.
Advantage of the present utility model and beneficial effect are:
1, during aluminum alloy part employing differential arc oxidation, because tube structure is complicated, need differential arc oxidization surface to be deep hole, electric force lines distribution is uneven, adds difficulty of processing.The utility model, for cylindrical shell surface of deep hole differential arc oxidation, designs unique deep hole differential arc oxidation special auxiliary device, makes electric force lines distribution even, in specific solution, obtains the differential arc oxidation film layer of 0.05 ~ 0.08mm thickness, meet design paper requirement.The thicknesses of layers that workpiece can obtain stay-in-grade differential arc oxidation film layer and meet design requirement, aviation field does not also have the precedent of this general application of technology factory at home.Use differential arc oxidation film layer prepared by the utility model supplementary unit, steady quality, installs easy to operate, shortens the Operational preparation time.
2, the utility model uses the deep hole differential arc oxidation film layer that processes of special auxiliary device, qualification rate up to 100%, for the jig Design of similar workpiece provides reference.Use differential arc oxidation film layer prepared by the utility model in differential arc oxidation, steady quality, technique is simple, easy to operate, shortens the Operational preparation time, improves production efficiency.
3, the design of the utility model differential arc oxidation special auxiliary device and application, ensure that part differential arc oxidation film layer quality.Through practical application in recent years, convenient and simple for operation, result of use is remarkable, has wide market outlook, and this technology can promote the use of the differential arc oxidation processing on similar internal diameter part.
Accompanying drawing explanation
Fig. 1 is the structural representation of the supplementary unit for cylindrical shell deep hole differential arc oxidation film layer of the present utility model.
In figure, 1 conducting rod; 2 upper nuts; 3 lower nuts; 4 stainless steel electrodes; 5 upper backup pads; 6 support sets; 7 lower supporting plates; 8 studdles; 9 cylindrical shells.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the utility model is used for the supplementary unit of cylindrical shell deep hole differential arc oxidation, and mainly comprise: conducting rod 1, stainless steel electrode 4, upper backup pad 5, lower supporting plate 7, support set 6, studdle 8 etc., concrete structure is as follows:
Conducting rod 1 and studdle 8 are vertically arranged on cylindrical shell 9 respectively, back up pad 5, lower supporting plate 7 is installed between conducting rod 1 and studdle 8, between upper backup pad 5, lower supporting plate 7, support set 6 is set respectively on conducting rod 1 and studdle 8, the top of upper backup pad 5, on conducting rod 1 and studdle 8, install nut 2 respectively, the bottom of lower supporting plate 7, on conducting rod 1 and studdle 8, lower nut 3 is installed respectively; Stainless steel electrode 4 is through the center of upper backup pad 5, lower supporting plate 7, be installed on the supporting structure of upper backup pad 5, lower supporting plate 7 formation, one end of stainless steel electrode 4 extends in cylindrical shell 9, for carrying out differential arc oxidation to cylindrical shell 9 internal surface, the other end of stainless steel electrode 4 is connected wire respectively with conducting rod 1.
Described conducting rod 1, stainless steel electrode 4, studdle 8 and cylindrical shell 9 Central of the parts line keeping parallelism, utilize upper backup pad 5, lower supporting plate 7, support set 6 to fix stainless steel electrode 4, make it in the cylindrical shell 9 of pressurized strut, keep plumbness.In order to make electric force lines distribution even, the distance of described stainless steel electrode 4 and cylindrical shell 9 is within the scope of 15 ~ 20mm.
The material that device of the present utility model adopts must not produce and dissolves and other chemical action in microarc oxidation solution.In the present embodiment, cylindrical shell 9 material is 2A70 aluminium alloy, and stainless steel electrode 4 material is 1Cr18Ni9Ti, and the material of upper backup pad 5, support set 6, lower supporting plate 7 is Vybak, and the material of conducting rod 1, studdle 8 is aluminium alloy.
Embodiment result shows, the utility model adopts deep hole differential arc oxidation special auxiliary device method to carry out the production of Al alloy parts, stable preparation process, reliable in quality, obtain thicknesses of layers 0.05 ~ 0.08mm, meet the differential arc oxidation film layer of technical requirements, constant product quality, qualification rate reaches 100%.The manufacturing expense of this cylindrical shell differential arc oxidation special auxiliary device is lower, and the benefit of generation is large, processes about 50 workpiece every year on average, after every part differential arc oxidation cost-saved 0.5 ten thousand yuan, cost-saving about 250,000 yuan every year.
Claims (3)
1. for a supplementary unit for cylindrical shell deep hole differential arc oxidation, it is characterized in that, this supplementary unit comprises: conducting rod, stainless steel electrode, upper backup pad, lower supporting plate, support set, studdle etc., and concrete structure is as follows:
Conducting rod and studdle are vertically arranged on cylindrical shell respectively, back up pad, lower supporting plate is installed between conducting rod and studdle, on conducting rod and studdle, support set is set respectively between upper backup pad, lower supporting plate, the top of upper backup pad, on conducting rod and studdle, install nut respectively, the bottom of lower supporting plate, on conducting rod and studdle, respectively lower nut is installed; Stainless steel electrode is through the center of upper backup pad, lower supporting plate, be installed on the supporting structure of upper backup pad, lower supporting plate formation, one end of stainless steel electrode extends in cylindrical shell, and for carrying out differential arc oxidation to cylinder inner surface, the other end of stainless steel electrode is connected wire respectively with conducting rod.
2. according to the supplementary unit for cylindrical shell deep hole differential arc oxidation according to claim 1, it is characterized in that, conducting rod, stainless steel electrode, studdle and cylinder part medullary ray keeping parallelism, utilize upper backup pad, lower supporting plate, support set to fix stainless steel electrode, make it in the cylindrical shell of pressurized strut, keep plumbness.
3. according to the supplementary unit for cylindrical shell deep hole differential arc oxidation according to claim 1, it is characterized in that, the distance of stainless steel electrode and cylindrical shell is within the scope of 15 ~ 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420664787.7U CN204097585U (en) | 2014-11-10 | 2014-11-10 | A kind of supplementary unit for cylindrical shell deep hole differential arc oxidation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420664787.7U CN204097585U (en) | 2014-11-10 | 2014-11-10 | A kind of supplementary unit for cylindrical shell deep hole differential arc oxidation |
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| CN204097585U true CN204097585U (en) | 2015-01-14 |
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| CN201420664787.7U Active CN204097585U (en) | 2014-11-10 | 2014-11-10 | A kind of supplementary unit for cylindrical shell deep hole differential arc oxidation |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818514A (en) * | 2015-05-07 | 2015-08-05 | 哈尔滨飞机工业集团有限责任公司 | Chromium-plated tooling |
| CN105855606A (en) * | 2016-05-10 | 2016-08-17 | 朱德仲 | Milling machine conversion device |
| CN106702451A (en) * | 2016-11-28 | 2017-05-24 | 中航飞机起落架有限责任公司 | Deep blind hole hard anodizing device and machining method of part |
| CN106757259A (en) * | 2016-12-27 | 2017-05-31 | 兰州空间技术物理研究所 | A kind of device for the different size uniform differential arc oxidation of alloy shoulder hole |
| CN110965100A (en) * | 2019-11-29 | 2020-04-07 | 中国航发沈阳黎明航空发动机有限责任公司 | Micro-arc oxidation and hard anodization process method for forged aluminum alloy cylinder |
| CN111893536A (en) * | 2019-12-23 | 2020-11-06 | 中国航发长春控制科技有限公司 | Tool clamp for micro-arc oxidation of inner cavity of double-cylinder actuator cylinder |
| CN112853425A (en) * | 2020-12-31 | 2021-05-28 | 中核北方核燃料元件有限公司 | Micro-arc oxidation tool for inner surface of connecting nut |
-
2014
- 2014-11-10 CN CN201420664787.7U patent/CN204097585U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818514A (en) * | 2015-05-07 | 2015-08-05 | 哈尔滨飞机工业集团有限责任公司 | Chromium-plated tooling |
| CN105855606A (en) * | 2016-05-10 | 2016-08-17 | 朱德仲 | Milling machine conversion device |
| CN106702451A (en) * | 2016-11-28 | 2017-05-24 | 中航飞机起落架有限责任公司 | Deep blind hole hard anodizing device and machining method of part |
| CN106757259A (en) * | 2016-12-27 | 2017-05-31 | 兰州空间技术物理研究所 | A kind of device for the different size uniform differential arc oxidation of alloy shoulder hole |
| CN106757259B (en) * | 2016-12-27 | 2019-02-19 | 兰州空间技术物理研究所 | A kind of device for the different uniform differential arc oxidations of size alloy stepped hole |
| CN110965100A (en) * | 2019-11-29 | 2020-04-07 | 中国航发沈阳黎明航空发动机有限责任公司 | Micro-arc oxidation and hard anodization process method for forged aluminum alloy cylinder |
| CN111893536A (en) * | 2019-12-23 | 2020-11-06 | 中国航发长春控制科技有限公司 | Tool clamp for micro-arc oxidation of inner cavity of double-cylinder actuator cylinder |
| CN112853425A (en) * | 2020-12-31 | 2021-05-28 | 中核北方核燃料元件有限公司 | Micro-arc oxidation tool for inner surface of connecting nut |
| CN112853425B (en) * | 2020-12-31 | 2023-06-13 | 中核北方核燃料元件有限公司 | Micro-arc oxidation tool for inner surface of connecting nut |
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Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City |