CN202639366U - Hard forming knife for processing sealing element - Google Patents
Hard forming knife for processing sealing element Download PDFInfo
- Publication number
- CN202639366U CN202639366U CN 201220125096 CN201220125096U CN202639366U CN 202639366 U CN202639366 U CN 202639366U CN 201220125096 CN201220125096 CN 201220125096 CN 201220125096 U CN201220125096 U CN 201220125096U CN 202639366 U CN202639366 U CN 202639366U
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- CN
- China
- Prior art keywords
- inverted cone
- processing
- seal
- hard forming
- sealing
- 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 belongs to the field of machining cutters and particularly relates to a hard forming knife for processing a sealing element. The hard forming knife comprises a knife bar and a cutting head. The cutting head is provided with a first knife edge for processing a sealing opening of a compressor and a second knife edge for processing a sealing face of the sealing element. The second knife edge comprises an arc-shaped surface and an inverted cone-shaped surface, the arc-shaped surface and the inverted cone-shaped surface are tangent to each other, the taper angle of the inverted cone-shaped surface is (0.08:100):(0.12-100). The hard forming knife has the advantages that the sealing opening of the compressor can be formed in one time, tightness of the sealing opening is guaranteed, and smooth finish of the sealing opening can be guaranteed.
Description
Technical field
The utility model relates to a kind of forming cutter, particularly a kind of hard forming cutter of processing the seal of compressor.
Background technology
The seal of compressor is round mouth, around it, be provided with the boss with the diaphragm seal fitted seal, the processing of this boss typically uses that molding cutter processes, at present, process the part that has this boss of processing on the molding cutter of this boss, the part of processing this boss is a trapezoidal concave surface, the boss cross section that processes is trapezoidal, the boss top is the plane, when cooperating with the sealing mouth with diaphragm seal, contact-making surface is larger, therefore like this, the pressure that acts on each point is less, if the diaphragm seal surface deforms or local have defective then can cause the decline of compressor seal.
Summary of the invention
The purpose of this utility model is that the boss top that processes that exists for the existing hard forming cutter described in the background technology is the plane, when the diaphragm seal surface exists distortion or part to have defective, can affect the problem of the sealing of compressor, a kind of hard forming cutter that is used for seal element machining that can solve foregoing problems is provided.
The technical scheme that can realize goal of the invention of the present utility model is as follows:
A kind of hard forming cutter for seal element machining, it comprises knife bar and cutter head, be provided with for the first blade of the seal of processing compressor on the cutter head and be used for the second blade of the sealing surface of seal element machining, this second blade comprises arc surface and inverted cone surface, inverted cone surface and arc surface are tangent, and the cone angle of inverted cone surface is 0.08: 100～0.12: 100.
The radius of described arc surface is 4～8mm.
Hard forming cutter for seal element machining of the present utility model is when the boss of processing compressor, process seal by the first blade at surface of the work, then around seal, process the boss of sealing surface by the second blade, because the second blade comprises arc surface and inverted cone surface, the boss cross section that arc surface processes is circular-arc, diaphragm seal is that line contacts with the contact-making surface of this boss, the contact site is little, when diaphragm seal is out of shape or has local defect, under the compressor suction function, diaphragm seal can be attracted to the surface of boss, ensures the sealing of compressor.By inverted cone surface is set, when making the processing boss, the second blade can not touch seal, can not produce cut at seal like this, has ensured the fineness that it is surperficial.
Description of drawings
Fig. 1 is the structural representation of the hard forming cutter for seal element machining of the present utility model;
Fig. 2 is the local enlarged diagram of A section among Fig. 1;
Among the figure, 1 is knife bar, and 2 is cutter head, and 3 is the first blade, and 4 is the second blade, and 5 is arc surface, and 6 is inverted cone surface.
The specific embodiment
With reference to a kind of hard forming cutter for seal element machining shown in Figure 1, it comprises knife bar 1 and cutter head 2, be provided with for the first blade 3 of the seal of processing compressor on the cutter head 2 and be used for the second blade 4 of the sealing surface of seal element machining, this second blade comprises arc surface 5 and inverted cone surface 6, inverted cone surface 6 and arc surface 5 are tangent, and the cone angle a of inverted cone surface 6 is 0.08: 100～0.12: 100.
In aforementioned schemes, the radius R of described arc surface 5 is 4～8mm.
Claims (2)
1. hard forming cutter that is used for seal element machining, it is characterized in that: it comprises knife bar and cutter head, be provided with for the first blade of the seal of processing compressor on the cutter head and be used for the second blade of the sealing surface of seal element machining, this second blade comprises arc surface and inverted cone surface, inverted cone surface and arc surface are tangent, and the cone angle of inverted cone surface is 0.08: 100～0.12: 100.
2. the hard forming cutter for seal element machining according to claim 1, it is characterized in that: the radius of described arc surface is 4～8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220125096 CN202639366U (en) | 2012-03-28 | 2012-03-28 | Hard forming knife for processing sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220125096 CN202639366U (en) | 2012-03-28 | 2012-03-28 | Hard forming knife for processing sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202639366U true CN202639366U (en) | 2013-01-02 |
Family
ID=47408543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220125096 Expired - Fee Related CN202639366U (en) | 2012-03-28 | 2012-03-28 | Hard forming knife for processing sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202639366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722200A (en) * | 2013-12-20 | 2014-04-16 | 无锡雨田精密工具有限公司 | Forming tungsten steel tapping cutter |
-
2012
- 2012-03-28 CN CN 201220125096 patent/CN202639366U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722200A (en) * | 2013-12-20 | 2014-04-16 | 无锡雨田精密工具有限公司 | Forming tungsten steel tapping cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20140328 |