CN202730276U - Shielding device for local anodic oxidation - Google Patents
Shielding device for local anodic oxidation Download PDFInfo
- Publication number
- CN202730276U CN202730276U CN 201220269080 CN201220269080U CN202730276U CN 202730276 U CN202730276 U CN 202730276U CN 201220269080 CN201220269080 CN 201220269080 CN 201220269080 U CN201220269080 U CN 201220269080U CN 202730276 U CN202730276 U CN 202730276U
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- CN
- China
- Prior art keywords
- expandable rubber
- anodic oxidation
- shielding device
- substrate
- rubber sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a shielding device for local anodic oxidation. The shielding device is provided with a substrate used for laying up a local anodic oxidation workpiece. The substrate is connected with an air pipe used for leading in compressed air; a gas channel is arranged in the substrate; the substrate is also provided with a bolt which is used for fixing the workpiece and is provided with a casing pipe; the casing pipe is fixedly provided with a circular locating plate; an expandable rubber sleeve is arranged outside the casing pipe; a framework for supporting the expandable rubber sleeve is arranged in the expandable rubber sleeve; and a sealing gasket mutually connected with the expandable rubber sleeve is also arranged by clinging to the substrate. The shielding device disclosed by the utility model can be reused without secondary treatment. A product is shielded by matching with the automatic control technology. The shielding device for the local anodic oxidation is simple, convenient and fast and is good in shielding effect.
Description
Technical field
The utility model relates to a kind of shading unit, particularly relates to a kind of shading unit of valve body selective oxidation.
Background technology
In existing oxidizing process, increasing product will cover in oxidising process because the requirement on the function only needs the privileged site of product is carried out oxidation, and do not need the position of oxidation.The utility model is exactly a kind of shading unit of using in the automobile valve body oxidation.Adopt device of the present utility model to cover the position of valve body appointment, reach the purpose of selective oxidation.
The weak point of existing masking methods and device thereof has:
First: existing covering adopts printing ink or adhesive tape to cover, after finishing, oxidation to process printing ink and adhesive tape,
Efficient is on the low side;
Second: printing ink and adhesive tape easily come off in oxidising process, and be bad to the screening effect in the hole, and some position can not effectively be covered.
Summary of the invention
The purpose of this utility model is, overcome above-mentioned the deficiencies in the prior art, provide a kind of shading unit of the piston hole oxidation for valve body, by pressurized air is filled with colloid, by expand hole wall close contact with valve body of colloid, thereby realize the covering partly of aerobicization not.
Technical solution of the present utility model is as follows:
Shading unit in a kind of local anodic oxidation, described shading unit have the pedestal of placing the local anodic oxidation workpiece, are connected with the tracheae that imports for the compression air on the described pedestal, and gas flow is arranged in the pedestal; The nut with well that also has fixing described workpiece on the described pedestal is fixed with circular spacer at described sleeve pipe, and sleeve pipe is outside equipped with expandable rubber coating, and the skeleton that supports described expandable rubber coating is arranged in described expandable rubber coating; Be close to described pedestal and also have the gasket that links to each other with described expandable rubber coating.
Described skeleton is rigid plastics, at the skeleton circumference uniform aperture is arranged.
The pressure of described expanding gas is 5～6bar.
The outer retaining ring of described bolt, sleeve pipe and sleeve pipe is stainless steel.
Described tracheae links to each other with the external compression air, by electrical control gear, can connect pressurized air as required when oxidation, releases pressure after oxidation is finished.
Compared with prior art, technique effect of the present utility model is as follows:
First: adopt shading unit of the present utility model.Can reuse, without secondary treatment.
Second: adopt shading unit of the present utility model, cooperate automatic control technology, product is covered, simple and efficient, screening effect is good.
Description of drawings
Fig. 1 is the utility model masking structure schematic diagram;
Fig. 2 is the diagrammatic cross-section of this practical expansion rubber sleeve and bracing frame.
Embodiment
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing, but should not limit protection domain of the present utility model with this.
Please consult first Fig. 1, Fig. 1 is the utility model masking structure schematic diagram.As seen from the figure, one masking structure, constitute: a square metal block is as the matrix 9 of placing valve body, there is tracheae 10 that the external compression air is imported at matrix 9, holding bolt 1 is fixed on sleeve pipe 5 on the matrix 9 by wear ring 2, at sleeve pipe 5 fixing circular ring plate 3 and 4 are arranged, be respectively applied to support the expansion direction of wear ring 2 and confined expansion gum cover 6, bracing frame 7 is placed in the expansion rubber sleeve 6, expansion rubber sleeve 6 is together inserted in the sleeve pipe together with bracing frame 5, also have gasket 8 at valve body and matrix 9 surfaces.When the valve body oxidation, valve body is fixed on the matrix by external force, outside pressurized air enters by tracheae 10, via the gas flow in the pedestal, enter the gap between sleeve pipe 5 and the bracing frame 7, enter gum cover 6 under the effect of bracing frame 7 by the aperture on bracing frame 7 circumference, expansion rubber sleeve 6 is along the lower surface of circular ring plate 4 and the upper surface directional expansion of matrix 7, fit tightly with the valve body hole wall, thereby in oxidising process, realize bridging effect.
Fig. 2 is the diagrammatic cross-section of the utility model expansion rubber sleeve 6 and bracing frame 7, when gas enters gum cover 6 by the hole 12 on the bracing frame circumference, along with the expansion of gum cover, the interior annular edge of expansion rubber sleeve 11 just and the ring groove 13 of bracing frame 7 fit tightly.
Experiment shows, in oxidising process, adopt shading unit of the present utility model, utilize the shrinkage of rubber, under certain pressure range, in conjunction with certain electric automatic control technology, when oxidation, connect pressurized air, when finishing, oxidation releases pressure, so just can conveniently cover oxygenated products, thereby realization is to the selective oxidation of product.
Claims (2)
1. the shading unit in the local anodic oxidation is characterized in that, described shading unit has the pedestal of placing the local anodic oxidation workpiece, and being connected with on the described pedestal in the tracheae that imports for the compression air, the pedestal has gas flow; The nut with well that also has fixing described workpiece on the described pedestal is fixed with circular spacer, sleeve pipe at described sleeve pipe and is outside equipped with expandable rubber coating, and the skeleton that supports described expandable rubber coating is arranged in described expandable rubber coating; Be close to described pedestal and also have the gasket that links to each other with described expandable rubber coating.
2. shading unit according to claim 1 is characterized in that, described skeleton is rigid plastics, at the skeleton circumference uniform aperture is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269080 CN202730276U (en) | 2012-06-08 | 2012-06-08 | Shielding device for local anodic oxidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269080 CN202730276U (en) | 2012-06-08 | 2012-06-08 | Shielding device for local anodic oxidation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202730276U true CN202730276U (en) | 2013-02-13 |
Family
ID=47655993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220269080 Expired - Fee Related CN202730276U (en) | 2012-06-08 | 2012-06-08 | Shielding device for local anodic oxidation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202730276U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480504A (en) * | 2014-11-20 | 2015-04-01 | 浙江西田机械有限公司 | Vortex wall oxidation device |
| CN105525327A (en) * | 2016-01-20 | 2016-04-27 | 珠海市金创科技有限公司 | Aluminum alloy anode treatment method capable of preventing corrosion to conductive shield thread holes |
| CN107447243A (en) * | 2017-06-19 | 2017-12-08 | 中南大学 | A kind of device being modified for the unidirectional surface of metal differential arc oxidation |
| CN107723753A (en) * | 2017-09-27 | 2018-02-23 | 上海瑞尔实业有限公司 | High-intensity high-tenacity nickel metal covers frock preparation method |
| CN110094505A (en) * | 2019-02-09 | 2019-08-06 | 沈阳富创精密设备有限公司 | Envelope technique is hidden before a kind of hole side wall anode |
| CN110863224A (en) * | 2019-11-22 | 2020-03-06 | 中国船舶重工集团公司第十二研究所 | Micro-arc oxidation protective agent for non-ferrous metal parts and local protection method |
| CN111534845A (en) * | 2020-06-10 | 2020-08-14 | 上海宝敦金属表面处理厂(普通合伙) | Local anodic oxidation equipment for valve body |
| CN111690970A (en) * | 2020-06-10 | 2020-09-22 | 上海宝敦金属表面处理厂(普通合伙) | Valve body local anodic oxidation method |
| CN112111769A (en) * | 2019-06-21 | 2020-12-22 | 中国航发贵州黎阳航空动力有限公司 | Protection method for local hard anodization of intermediate casing |
-
2012
- 2012-06-08 CN CN 201220269080 patent/CN202730276U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480504A (en) * | 2014-11-20 | 2015-04-01 | 浙江西田机械有限公司 | Vortex wall oxidation device |
| CN105525327A (en) * | 2016-01-20 | 2016-04-27 | 珠海市金创科技有限公司 | Aluminum alloy anode treatment method capable of preventing corrosion to conductive shield thread holes |
| CN107447243A (en) * | 2017-06-19 | 2017-12-08 | 中南大学 | A kind of device being modified for the unidirectional surface of metal differential arc oxidation |
| CN107447243B (en) * | 2017-06-19 | 2023-07-14 | 中南大学 | Device for metal micro-arc oxidation unidirectional surface modification |
| CN107723753B (en) * | 2017-09-27 | 2021-04-27 | 上海瑞尔实业有限公司 | Preparation method of high-strength high-toughness nickel metal shielding tool |
| CN107723753A (en) * | 2017-09-27 | 2018-02-23 | 上海瑞尔实业有限公司 | High-intensity high-tenacity nickel metal covers frock preparation method |
| CN110094505A (en) * | 2019-02-09 | 2019-08-06 | 沈阳富创精密设备有限公司 | Envelope technique is hidden before a kind of hole side wall anode |
| CN112111769A (en) * | 2019-06-21 | 2020-12-22 | 中国航发贵州黎阳航空动力有限公司 | Protection method for local hard anodization of intermediate casing |
| CN112111769B (en) * | 2019-06-21 | 2022-03-18 | 中国航发贵州黎阳航空动力有限公司 | Protection method for local hard anodization of intermediate casing |
| CN110863224A (en) * | 2019-11-22 | 2020-03-06 | 中国船舶重工集团公司第十二研究所 | Micro-arc oxidation protective agent for non-ferrous metal parts and local protection method |
| CN110863224B (en) * | 2019-11-22 | 2022-09-30 | 中国船舶重工集团公司第十二研究所 | Non-ferrous metal part micro-arc oxidation protective agent and local protection method |
| CN111534845A (en) * | 2020-06-10 | 2020-08-14 | 上海宝敦金属表面处理厂(普通合伙) | Local anodic oxidation equipment for valve body |
| CN111690970A (en) * | 2020-06-10 | 2020-09-22 | 上海宝敦金属表面处理厂(普通合伙) | Valve body local anodic oxidation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20200608 |