CN203711663U - Sealing connection structure for mold head and pipe fitting of hydraulic bulging machine - Google Patents
Sealing connection structure for mold head and pipe fitting of hydraulic bulging machine Download PDFInfo
- Publication number
- CN203711663U CN203711663U CN201420086187.7U CN201420086187U CN203711663U CN 203711663 U CN203711663 U CN 203711663U CN 201420086187 U CN201420086187 U CN 201420086187U CN 203711663 U CN203711663 U CN 203711663U
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- CN
- China
- Prior art keywords
- pipe fitting
- mold head
- die head
- connection structure
- sealing connection
- 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 relates to a sealing connection structure for a mold head and a pipe fitting of a hydraulic bulging machine. The sealing connection structure comprises the mold head and an end part of the pipe fitting, wherein the end part of the pipe fitting sleeves the mold head; the mold head sequentially comprises a small cone section, a cylinder section and a large cone section from front to back; the large diameter of the small cone section is equal to the diameter of the cylinder section; the small diameter of the large cone section is equal to the diameter of the cylinder section; the inner wall of the end part of the pipe fitting is attached to the outside of the mold head. According to the sealing connection structure for the mold head and the pipe fitting of the hydraulic bulging machine, by the matching of two inclined surfaces between the end part of the pipe fitting and the mold head, the sealing effect is better, the stability of pressure applied to the pipe fitting during hydraulic bulging is guaranteed, the pipe fitting can be fully bulged, and the quality of a finished product is guaranteed.
Description
Technical field
The utility model relates to the technical field of hydraulic expanding-forming machine, refers to especially a kind of die head of hydraulic expanding-forming machine and the Hermetical connecting structure of pipe fitting.
Background technology
Hydraulic expanding-forming machine is in when work, uses die head by after pipe fitting sealed at both ends, by hydraulic pressure by pipe fitting bulging to required form.Hermetical connecting structure between die head and the end of pipe fitting is a part more crucial in hydraulic expanding-forming process, current most of hydraulic expanding-forming machine all can not be realized the positiver sealing between die head and the end of pipe fitting well, thereby make pipe fitting suffered insufficient pressure in the time of hydraulic expanding-forming, cause pipe fitting bulging insufficient, affect the quality of finished product.
Utility model content
Technical problem to be solved in the utility model is: the die head of the better hydraulic expanding-forming machine of a kind of sealing effectiveness and the Hermetical connecting structure of pipe fitting are provided.
For addressing the above problem, the technical solution adopted in the utility model is: the die head of hydraulic expanding-forming machine and the Hermetical connecting structure of pipe fitting, comprise die head and be set in the end of pipe fitting of die head outside, described die head comprises roundlet stage body section, shell portion and large Rotary-table section from front to back successively, the major diameter of roundlet stage body section and the equal diameters of shell portion, the large minor diameter of Rotary-table section and the equal diameters of shell portion, the inwall of the end of described pipe fitting and the outside of die head fit.
The beneficial effects of the utility model are: the above-mentioned die head of hydraulic expanding-forming machine and the Hermetical connecting structure of pipe fitting, it adopts two inclined-planes between end and the die head of pipe fitting to coordinate, make sealing effectiveness better, ensure pipe fitting suffered pressure stability when the hydraulic expanding-forming, pipe fitting energy bulging is abundant, has ensured the quality of finished product.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structure for amplifying schematic diagram of A portion in Fig. 1;
In figure: 1, die head, 2, pipe fitting, 3, roundlet stage body section, 4, shell portion, 5, large Rotary-table section.
Detailed description of the invention
Die head below by specific embodiment to hydraulic expanding-forming machine described in the utility model and the Hermetical connecting structure of pipe fitting are described in further detail.
As shown in Figure 1 and Figure 2, the die head of hydraulic expanding-forming machine and the Hermetical connecting structure of pipe fitting, comprise die head 1 and be set in the end of the pipe fitting 2 of die head 1 outside, described die head 1 comprises roundlet stage body section 3, shell portion 4 and large Rotary-table section 5 from front to back successively, the major diameter of roundlet stage body section 3 and the equal diameters of shell portion 4, the large minor diameter of Rotary-table section 5 and the equal diameters of shell portion 4, the outside of the inwall of the end of described pipe fitting 2 and die head 1 fits.
The die head 1 of above-mentioned hydraulic expanding-forming machine and the Hermetical connecting structure of pipe fitting 2, it adopts two inclined-planes between end and the die head 1 of pipe fitting 2 to coordinate, make sealing effectiveness better, ensure pipe fitting 2 suffered pressure stability when the hydraulic expanding-forming, pipe fitting 2 energy bulgings are abundant, ensured the quality of finished product.
The above embodiments are principle and effect thereof of illustrative the invention only, and the embodiment of part utilization, but not for limiting the utility model; It should be pointed out that for the person of ordinary skill of the art, not departing under the prerequisite of the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (1)
1. the die head of hydraulic expanding-forming machine and the Hermetical connecting structure of pipe fitting, comprise die head and be set in the end of pipe fitting of die head outside, it is characterized in that: described die head comprises roundlet stage body section, shell portion and large Rotary-table section from front to back successively, the major diameter of roundlet stage body section and the equal diameters of shell portion, the large minor diameter of Rotary-table section and the equal diameters of shell portion, the inwall of the end of described pipe fitting and the outside of die head fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420086187.7U CN203711663U (en) | 2014-02-27 | 2014-02-27 | Sealing connection structure for mold head and pipe fitting of hydraulic bulging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420086187.7U CN203711663U (en) | 2014-02-27 | 2014-02-27 | Sealing connection structure for mold head and pipe fitting of hydraulic bulging machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203711663U true CN203711663U (en) | 2014-07-16 |
Family
ID=51150863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420086187.7U Expired - Fee Related CN203711663U (en) | 2014-02-27 | 2014-02-27 | Sealing connection structure for mold head and pipe fitting of hydraulic bulging machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203711663U (en) |
-
2014
- 2014-02-27 CN CN201420086187.7U patent/CN203711663U/en not_active Expired - Fee Related
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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: 20140716 |