CN203999884U - A kind of engine diaphragm local tin plating frock - Google Patents
A kind of engine diaphragm local tin plating frock Download PDFInfo
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- CN203999884U CN203999884U CN201420449330.4U CN201420449330U CN203999884U CN 203999884 U CN203999884 U CN 203999884U CN 201420449330 U CN201420449330 U CN 201420449330U CN 203999884 U CN203999884 U CN 203999884U
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Abstract
The utility model relates to a kind of engine diaphragm local tin plating frock, comprises handle, copper rod, insulation spacer, 2 round platforms; 2 round platforms adopt fluoroplastics material, and one is solid construction, and another center is provided with tapped through hole; The internal diameter of tapped through hole is consistent with engine diaphragm round boss diameter; Handle is made by resilient material, and it has an opening end; Under handle state of nature, opening end opening length is less than 2 round platform axial heights, insulation spacer thickness and engine diaphragm thickness summation; Insulation spacer is close to solid construction round platform one end face, the round boss of engine diaphragm is close to insulation spacer to side, be provided with tapped through hole round platform one end face and be close to engine diaphragm round boss place face, the opening end of several handles opens and is stuck on the end face of 2 round platforms.The utility model frock making cost is low, stopping property, conducts electricity very well; Conduction copper rod and diaphragm energy close contact, effectively avoid the scuffing of part plating part, makes diaphragm obtain good rete.
Description
Technical field
The present invention relates to engine coating technique field, be specifically related to a kind of engine diaphragm local tin plating frock.
Background technology
In aerospace field, diaphragm is one of important component part of engine oxygen pressure maintaining valve sensor, in order to guarantee that diaphragm seals reliably at low temperatures, must carry out the sealing property that local tin plating processes to strengthen assembly to diaphragm.
The engine diaphragm of plating is stainless material, smooth finish is very high, thickness is the circular pieces of 0.3mm, diameter 70mm, and in centre, to have a height be that 2mm, diameter are the small boss of 15mm circle, requirement is carried out zinc-plated at diaphragm edge 4mm place, other parts have not allowed coating, and other parts have not allowed fixture to print, can not scratch part and coating, it is that alkaline temperature is at 80～90 ℃ that round boss place does not allow into solution and tin plating solution.The method that existing local tin plating adopts is to use the protection of plastics non-setting adhesive not need zinc-plated part; and the mode colligation part bundling with cross with copper wire; because the tank liquor temperature of zinc-plated requirement is up to 80-90 ℃; part enters after tank liquor; plastics non-setting adhesive runs into high temperature and causes edge to roll; cause diaphragm plating place edge to have greatly coating, copper wire and diaphragm conducting position form larger fixture seal simultaneously, do not reach processing requirement.
Therefore urgently the local tin of a kind of new work engine diaphragm plates frock, to overcome the defect of prior art.
Summary of the invention
The technical problem that will solve of the present invention be to provide a kind ofly overcome that prior art is complete to the protection of non-surfacing, frock can not be high temperature resistant, soda acid, poorly conductive defect; and do not damage coating; high temperature resistant, acid and alkali-resistance; electroconductibility is high; be installed conveniently, the local tin plating of reusable engine diaphragm frock.
In order to solve the problems of the technologies described above, technical scheme of the present invention is, a kind of engine diaphragm local tin plating frock, and wherein engine diaphragm is that diameter is the circular pieces of D, and in centre, having the round boss that a diameter is d, it needs the border width of local plated film is d1; Described local tin plating frock, comprises handle, copper rod, insulation spacer, 2 round platforms;
One of them is solid construction for described 2 round platforms, and another center is provided with tapped through hole; The internal diameter of described tapped through hole is consistent with engine diaphragm round boss diameter;
Described handle has an opening end; Under handle state of nature, described opening end opening length is less than described 2 round platform axial heights, insulation spacer thickness and engine diaphragm thickness summation;
Described insulation spacer is close to solid construction round platform one end face, the round boss of described engine diaphragm is close to described insulation spacer to side, described tapped through hole round platform one end face that is provided with is close to engine diaphragm round boss place face, and described in several, the opening end of handle opens and is stuck on the end face of described 2 round platforms; Described copper rod one end coordinates and contacts with the round boss of described engine diaphragm with described tapped through hole.
The external diameter of described round platform is D-2d1.
One end that described copper rod does not penetrate round platform is provided with fabrication hole.
Comprise 3 described handles, described 3 handles are along 120 ° of layouts of round platform circumferential direction each interval.
Beneficial effect of the present invention:
(1) frock making cost is low, stopping property, conducts electricity very well;
(2) conduction copper rod and diaphragm energy close contact, effectively avoid the scuffing of part plating part, makes diaphragm obtain good rete.
Accompanying drawing explanation
Fig. 1 is a kind of engine diaphragm of the present invention local tin plating frock schematic diagram;
Fig. 2 be in Fig. 1 A-A to sectional view.
In figure: 1-handle, 2-engine diaphragm, 3-insulation spacer, 4-the first round platform, 5-the second round platform, 6-copper rod, 601-fabrication hole.
Embodiment
Below in conjunction with Fig. 1, Fig. 2 and embodiment, the present invention is described further.
A kind of engine diaphragm of the present invention local tin plating frock, as shown in Figure 1 and Figure 2, it comprises: the first round platform 4, the second round platform 5, copper rod 6, insulation spacer 3, handle 1;
Described the first round platform 4 and the second round platform 5 are column structure, and radial section circular diameter is 62mm, and axial height is 20mm; Described the second round platform 5 centers are provided with tapped through hole; Described the first round platform 4 and the second round platform 5 all adopt fluoroplastics material high temperature resistant, acid and alkali-resistance;
Described copper rod 6 is circumferentially with screw thread, and copper rod 6 coordinates with the tapped through hole of described the second round platform 5 by screw thread; Described copper rod 6 one end are provided with fabrication hole, for colligation copper wire connection electrode;
The external diameter of the internal diameter of described tapped through hole and copper rod 6 is consistent with the boss diameter of engine diaphragm central authorities;
Described handle 1 is made by resilient material, and it has an opening end; Under handle 1 state of nature, described opening end opening length is less than described first former 4 axial height, the second round platform 5 axial heights, insulation spacer 3 thickness and engine diaphragm thickness summation;
Described insulation spacer 3 is close to the first round platform 4 one end faces, the boss of described engine diaphragm is close to described insulation spacer 3 to side, described the second round platform 5 one end faces are close to engine diaphragm boss place face, and the opening end of 3 described handles 1 opens and is stuck on the end face of described the first round platform 4 and the second round platform 5 along described the first boss 4 axial direction dues; Described copper rod 6 is not provided with one end of fabrication hole by being threaded into the second round platform 5 and contacting with the boss of described engine diaphragm, and object is connecting engine diaphragm conduction;
Described 3 handles 1 are along 120 ° of layouts of the first round platform 4 circumferential direction each interval;
By being communicated with electrodes conduct, and start to carry out the part that engine diaphragm is exposed at outside described the first round platform 4 and the second round platform 5 and carry out tin plating, thereby both realized the tin plating requirement to engine diaphragm regional area, guaranteed again not need the processing requirement in tin plating region.
Claims (4)
1. an engine diaphragm local tin plating frock, wherein engine diaphragm is that diameter is the circular pieces of D, and in centre, has the round boss that a diameter is d, it needs the border width of local plated film is d1; Described local tin plating frock, is characterized in that: comprise handle, copper rod, insulation spacer, 2 round platforms;
One of them is solid construction for described 2 round platforms, and another center is provided with tapped through hole; The internal diameter of described tapped through hole is consistent with engine diaphragm round boss diameter;
Described handle has an opening end; Under handle state of nature, described opening end opening length is less than described 2 round platform axial heights, insulation spacer thickness and engine diaphragm thickness summation;
Described insulation spacer is close to solid construction round platform one end face, the round boss of described engine diaphragm is close to described insulation spacer to side, described tapped through hole round platform one end face that is provided with is close to engine diaphragm round boss place face, and described in several, the opening end of handle opens and is stuck on the end face of described 2 round platforms; Described copper rod one end coordinates and contacts with the round boss of described engine diaphragm with described tapped through hole.
2. according to engine diaphragm local tin plating frock claimed in claim 1, it is characterized in that: the external diameter of described round platform is D-2d1.
3. according to engine diaphragm local tin plating frock claimed in claim 1, it is characterized in that: one end that described copper rod does not penetrate round platform is provided with fabrication hole.
4. according to engine diaphragm local tin plating frock claimed in claim 3, it is characterized in that: comprise 3 described handles, described 3 handles are along 120 ° of layouts of round platform circumferential direction each interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420449330.4U CN203999884U (en) | 2014-08-11 | 2014-08-11 | A kind of engine diaphragm local tin plating frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420449330.4U CN203999884U (en) | 2014-08-11 | 2014-08-11 | A kind of engine diaphragm local tin plating frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203999884U true CN203999884U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420449330.4U Active CN203999884U (en) | 2014-08-11 | 2014-08-11 | A kind of engine diaphragm local tin plating frock |
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| CN (1) | CN203999884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455438A (en) * | 2020-03-11 | 2020-07-28 | 贵州振华群英电器有限公司（国营第八九一厂） | Local electroplating fixture for relay base |
-
2014
- 2014-08-11 CN CN201420449330.4U patent/CN203999884U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455438A (en) * | 2020-03-11 | 2020-07-28 | 贵州振华群英电器有限公司（国营第八九一厂） | Local electroplating fixture for relay base |
| CN111455438B (en) * | 2020-03-11 | 2022-07-15 | 贵州振华群英电器有限公司（国营第八九一厂） | Local electroplating fixture for relay base |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |