CN202910202U - Tubing hole enlargement device - Google Patents
Tubing hole enlargement device Download PDFInfo
- Publication number
- CN202910202U CN202910202U CN 201220564797 CN201220564797U CN202910202U CN 202910202 U CN202910202 U CN 202910202U CN 201220564797 CN201220564797 CN 201220564797 CN 201220564797 U CN201220564797 U CN 201220564797U CN 202910202 U CN202910202 U CN 202910202U
- Authority
- CN
- China
- Prior art keywords
- hole enlargement
- tubing
- mandrel
- ejector sleeve
- sleeve spare
- 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 tubing hole enlargement device. The tubing hole enlargement device comprises a pushing pipe fitting, a central spindle, a hole enlargement piece, and a drawing piece which are arranged in sequence. The pushing pipe fitting is movably sleeved at one end of the central spindle; an axis of the drawing piece and an axis of the central spindle are in the same straight line. The tubing hole enlargement device has the advantages of being simple in structure, high in efficiency, good in hole enlargement quality, less in material loss. After the hole enlargement, the tubing wall thickness and natural reduction amount are larger, and the quality of the tubing surface doesn't change.
Description
Technical field
The utility model relates to the metal pipe material manufacture field, particularly a kind of tubing expander for the expansion pipe diameter.
Background technology
In the prior art, diameter expansion method is the tubing with the larger specification of pipe production of small dimension, and the diameter of tubing increases after the hole enlargement, and length and wall thickness reduce.Diameter expansion method is divided into the drawing hole enlargement and is pressed into hole enlargement.Usually, drawing hole enlargement mode is adopted in the tubing hole enlargement, traditional drawing hole enlargement mode complicated operation, and efficient is low, and hole enlargement is of poor quality, and material unaccounted-for (MUF) is large, and can only realize that external diameter increases, and wall thickness nature attenuate amount is less, and the tube surfaces Quality Down.
Summary of the invention
The purpose of this utility model is, for the problems referred to above, provides a kind of tubing expander reasonable in design, and it is simple to operate, and efficient is high, and the hole enlargement quality is good, and material unaccounted-for (MUF) is few, and tube wall thickness nature attenuate amount is larger after the hole enlargement, and the tube surfaces mass conservation.
The technical scheme that the utility model adopts for achieving the above object is:
A kind of tubing expander, it comprises an ejector sleeve spare, a mandrel, a hole enlargement part and a drawing part that sets gradually, this ejector sleeve spare is placed in an end of this mandrel movably, this hole enlargement part is fixed on this mandrel, described drawing part is arranged at a side of this mandrel movably, and the axis of this drawing part and the axis of this mandrel are on the same straight line.
Described ejector sleeve spare comprises the cannula portion that is placed on this mandrel and the push pedal section that is used for promoting to treat hole enlargement tubing, and this push pedal section is arranged at the leading section of this cannula portion.
Described hole enlargement part is fixed in the other end end of this mandrel, and the outer peripheral face of this hole enlargement part is an inclined-plane, and this inclined-plane this ejector sleeve spare of serving as reasons tilts from lower to upper toward the direction of hole enlargement part.
Described drawing part is connected with a puller system.
The beneficial effects of the utility model are: the utility model is rational in infrastructure, and it is simple to operate, and efficient is high, and the hole enlargement quality is good, and material unaccounted-for (MUF) is few, and tube wall thickness nature attenuate amount is larger after the hole enlargement, and the tube surfaces mass conservation.
Below in conjunction with accompanying drawing and embodiment, the utility model is further specified.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Embodiment: see Fig. 1, a kind of tubing expander of the utility model, it comprises an ejector sleeve spare 1, a mandrel 2, a hole enlargement part 3 and a drawing part 4 that sets gradually, this ejector sleeve spare 1 is placed in an end of this mandrel 2 movably, this hole enlargement part 3 is fixed on this mandrel 2, described drawing part 4 is arranged at a side of this mandrel 2 movably, and the axis of the axis of this drawing part 4 and this mandrel 2 is on the same straight line.
Described ejector sleeve spare 1 comprises the cannula portion 11 that is placed on this mandrel 2 and the push pedal section 12 that is used for promoting to treat hole enlargement tubing, and this push pedal section 12 is arranged at the leading section of this cannula portion 11.Treat that hole enlargement tubing is placed on this mandrel 2 slidably, promoted to move to hole enlargement part 3 by this ejector sleeve spare 1.
Described hole enlargement part 3 is fixed in the other end end of this mandrel 2, and the outer peripheral face of this hole enlargement part 3 is an inclined-plane 31, and serve as reasons this ejector sleeve spare 1 of this inclined-plane tilts from lower to upper toward the direction of hole enlargement part 3.
Described drawing part 4 is connected with a puller system.
The utility model is rational in infrastructure, and it is simple to operate, and efficient is high, and the hole enlargement quality is good, and material unaccounted-for (MUF) is few, and tube wall thickness nature attenuate amount is larger after the hole enlargement, and the tube surfaces mass conservation.
As described in the utility model embodiment, with other tubing expanders of the same or similar structure of the utility model, all in the utility model protection domain.
Claims (4)
1. tubing expander, it is characterized in that: it comprises an ejector sleeve spare, a mandrel, a hole enlargement part and a drawing part that sets gradually, this ejector sleeve spare is placed in an end of this mandrel movably, this hole enlargement part is fixed on this mandrel, described drawing part is arranged at a side of this mandrel movably, and the axis of this drawing part and the axis of this mandrel are on the same straight line.
2. tubing expander according to claim 1 is characterized in that, described ejector sleeve spare comprises the cannula portion that is placed on this mandrel and the push pedal section that is used for promoting to treat hole enlargement tubing, and this push pedal section is arranged at the leading section of this cannula portion.
3. tubing expander according to claim 1 is characterized in that, described hole enlargement part is fixed in the other end end of this mandrel, and the outer peripheral face of this hole enlargement part is an inclined-plane, and this inclined-plane this ejector sleeve spare of serving as reasons tilts from lower to upper toward the direction of hole enlargement part.
4. tubing expander according to claim 1 is characterized in that, described drawing part is connected with a puller system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220564797 CN202910202U (en) | 2012-10-31 | 2012-10-31 | Tubing hole enlargement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220564797 CN202910202U (en) | 2012-10-31 | 2012-10-31 | Tubing hole enlargement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202910202U true CN202910202U (en) | 2013-05-01 |
Family
ID=48158548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220564797 Expired - Fee Related CN202910202U (en) | 2012-10-31 | 2012-10-31 | Tubing hole enlargement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202910202U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923680A (en) * | 2015-07-14 | 2015-09-23 | 攀钢集团研究院有限公司 | Pipe expanding machine for producing variable thickness steel pipe |
| CN108544185A (en) * | 2018-07-02 | 2018-09-18 | 四川华都核设备制造有限公司 | A kind of thin-wall sleeve processing method |
| CN108899099A (en) * | 2018-07-02 | 2018-11-27 | 四川华都核设备制造有限公司 | The installation method of spacer in a kind of motor-type CRDM |
-
2012
- 2012-10-31 CN CN 201220564797 patent/CN202910202U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923680A (en) * | 2015-07-14 | 2015-09-23 | 攀钢集团研究院有限公司 | Pipe expanding machine for producing variable thickness steel pipe |
| CN108544185A (en) * | 2018-07-02 | 2018-09-18 | 四川华都核设备制造有限公司 | A kind of thin-wall sleeve processing method |
| CN108899099A (en) * | 2018-07-02 | 2018-11-27 | 四川华都核设备制造有限公司 | The installation method of spacer in a kind of motor-type CRDM |
| CN108899099B (en) * | 2018-07-02 | 2019-12-10 | 四川华都核设备制造有限公司 | installation method of motor type CRDM spacer bush |
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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 |
Granted publication date: 20130501 Termination date: 20141031 |
|
| EXPY | Termination of patent right or utility model |