CN203509607U - Taper expansion sleeve - Google Patents
Taper expansion sleeve Download PDFInfo
- Publication number
- CN203509607U CN203509607U CN201320550213.2U CN201320550213U CN203509607U CN 203509607 U CN203509607 U CN 203509607U CN 201320550213 U CN201320550213 U CN 201320550213U CN 203509607 U CN203509607 U CN 203509607U
- Authority
- CN
- China
- Prior art keywords
- expansion sleeve
- taper
- tapering
- gland
- expansion
- 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 taper expansion sleeve. The taper expansion sleeve comprises a base (1), wherein a big-end-down circular truncated cone (2) is arranged on the top of the base (1), a stand column (7) is vertically connected to the upper end of the circular truncated cone (2), a nut (8) is connected to the top of the stand column (7) in a threaded mode, an expansion sleeve body (3) is installed on the circular truncated cone (2) in a sleeved mode, an annular conical protruding strip (3a) is arranged in the middle of an inner hole of the expansion sleeve body (3), the lower surface of the conical protruding strip (3a) is attached to the circular truncated cone (2), a taper pressing sleeve (4) is arranged on the top of the expansion sleeve body (3), the stand column (7) is sleeved with the taper pressing sleeve (4), the taper pressing sleeve (4) is tightly pressed by the lower surface of the nut (8), a big-end-up conical surface (4a) is arranged on the lower portion of the taper pressing sleeve (4), and the lower portion of the conical surface (4a) extends into the expansion sleeve body (3), and is attached to the upper surface of the conical protruding strip (3a). According to the taper expansion sleeve, due to the fact that the expansion sleeve body is used in cooperation with the taper pressing sleeve, locating and clamping can be conveniently and rapidly carried out on a center hole of an annular workpiece, and the taper expansion sleeve further has the advantages of being low in manufacturing cost, low in labor intensity, easy to operate, safe in operation and the like.
Description
Technical field
The utility model relates to mechanical field, particularly relates to a kind of tapering expansion set.
Background technology
Annular workpieces is being added to man-hour, conventionally need to carry out centre bore location and clamping to workpiece, and when workpiece is clamped because needs are processed excircle of workpiece side face, the mode that cannot clamp by two ends clamps.Therefore need a kind of fixture that can workpiece be positioned and be clamped from inner hole of workpiece.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of expansion set that is positioned and clamped by inner hole of workpiece.
The technical solution of the utility model is as follows: a kind of tapering expansion set, comprise base (1), described base (1) top is provided with up-small and down-big round platform (2), the upper end of this round platform (2) is vertically connected with column (7), screw top at column (7) is connected with nut (8), on described round platform (2), be set with expansion sleeve (3), the endoporus middle part of this expansion sleeve (3) is provided with the taper raised line (3a) of ring-type, the lower surface of this taper raised line (3a) and round platform (2) fit, the top of described expansion sleeve (3) is provided with tapering gland (4), this tapering gland (4) is sleeved on column (7), and this tapering gland (4) is compressed by the lower surface of nut (8), the bottom of described tapering gland (4) is the up big and down small conical surface (4a), the bottom of this conical surface (4a) extend in expansion sleeve (3) and fits with the upper surface of taper raised line (3a).
Adopt the expansion set of said structure, in use, first unclamp nut, tapering gland is exited from expansion sleeve, then workpiece is sleeved on outside expansion sleeve, fastening nut, makes nut that tapering gland is compressed downwards again, and the lower end of tapering gland is extend in expansion sleeve, fit with the upper surface of taper raised line, when tapering gland continues to press down, tapering gland just slowly swells expansion sleeve, the expansion sleeve after swelling just from inner hole of workpiece by workpiece swelling.
On described expansion sleeve (3) excircle, be evenly distributed with at least four road breach (5), the termination, one end of this breach (5) is circular, and the other end extends to expansion sleeve (3) end, one end, and the opening of this breach of multiple tracks (5) is arranged crosswise one on the other.Adopt said structure, when tapering gland swells expansion sleeve, expansion sleeve opens and swells from indentation, there, and when tapering gland bounces back, expansion sleeve closes up from indentation, there.
For expansion sleeve better swells, on described expansion sleeve (3) excircle, be evenly distributed with eight road breach (5).
In order better workpiece to be carried out, centre bore is located the lower surface center of described base (1) and the upper surface Central Symmetry of column (7) offers two taper holes (6).
Beneficial effect: the utility model adopts expansion sleeve to match with tapering gland, can conveniently position fixture for annular workpieces centre bore, also has the features such as low cost of manufacture, labour intensity are low, safety simple to operate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the stereogram of expansion sleeve in Fig. 1.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the utility model comprises the parts such as base 1, round platform 2, expansion sleeve 3, tapering gland 4, column 7 and nut 8, described base 1 top is provided with up-small and down-big round platform 2, the upper end of this round platform 2 is vertically connected with column 7, screw top at column 7 is connected with nut 8, and the lower surface center of described base 1 and the upper surface Central Symmetry of column 7 offer two taper holes 6.On described round platform 2, be set with expansion sleeve 3, the endoporus middle part of this expansion sleeve 3 is provided with the taper raised line 3a of ring-type, lower surface and the round platform 2 of this taper raised line 3a fit, the top of described expansion sleeve 3 is provided with tapering gland 4, this tapering gland 4 is sleeved on column 7, and this tapering gland 4 is compressed by the lower surface of nut 8, the bottom of described tapering gland 4 is up big and down small conical surface 4a, and the bottom of this conical surface 4a extend in expansion sleeve 3 and fits with the upper surface of taper raised line 3a.On described expansion sleeve 3 excircles, be evenly distributed with at least four road breach 5, the present embodiment is preferably eight road breach 5, the termination, one end of this breach 5 is circular, and the other end extends to expansion sleeve 3 ends, one end, and the opening of this breach 5 of multiple tracks is arranged crosswise one on the other.
The foregoing is only preferred embodiment of the present utility model; not take the utility model as restriction; all any modifications of doing, be equal to the quantity etc. of replacing and improving as change dial framework and benchmark post, within all should being included in protection domain of the present utility model within spirit of the present utility model and principle.
Claims (4)
1. a tapering expansion set, it is characterized in that: comprise base (1), described base (1) top is provided with up-small and down-big round platform (2), the upper end of this round platform (2) is vertically connected with column (7), screw top at column (7) is connected with nut (8), on described round platform (2), be set with expansion sleeve (3), the endoporus middle part of this expansion sleeve (3) is provided with the taper raised line (3a) of ring-type, the lower surface of this taper raised line (3a) and round platform (2) fit, the top of described expansion sleeve (3) is provided with tapering gland (4), this tapering gland (4) is sleeved on column (7), and this tapering gland (4) is compressed by the lower surface of nut (8), the bottom of described tapering gland (4) is the up big and down small conical surface (4a), the bottom of this conical surface (4a) extend in expansion sleeve (3) and fits with the upper surface of taper raised line (3a).
2. tapering expansion set according to claim 1, it is characterized in that: on described expansion sleeve (3) excircle, be evenly distributed with at least four road breach (5), the termination, one end of this breach (5) is circular, the other end extends to expansion sleeve (3) end, one end, and the opening of this breach of multiple tracks (5) is arranged crosswise one on the other.
3. tapering expansion set according to claim 2, is characterized in that: on described expansion sleeve (3) excircle, be evenly distributed with eight road breach (5).
4. tapering expansion set according to claim 1, is characterized in that: the upper surface Central Symmetry of the lower surface center of described base (1) and column (7) offers two taper holes (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550213.2U CN203509607U (en) | 2013-09-05 | 2013-09-05 | Taper expansion sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550213.2U CN203509607U (en) | 2013-09-05 | 2013-09-05 | Taper expansion sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203509607U true CN203509607U (en) | 2014-04-02 |
Family
ID=50368589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320550213.2U Expired - Fee Related CN203509607U (en) | 2013-09-05 | 2013-09-05 | Taper expansion sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203509607U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224688A (en) * | 2016-07-29 | 2016-12-14 | 武汉大学 | A kind of novel Double Oblique Wedge inner hole expanding device |
| CN109551267A (en) * | 2018-10-12 | 2019-04-02 | 江西昌河航空工业有限公司 | A kind of centering pressing device |
-
2013
- 2013-09-05 CN CN201320550213.2U patent/CN203509607U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224688A (en) * | 2016-07-29 | 2016-12-14 | 武汉大学 | A kind of novel Double Oblique Wedge inner hole expanding device |
| CN106224688B (en) * | 2016-07-29 | 2018-02-09 | 武汉大学 | A kind of new Double Oblique Wedge inner hole expanding device |
| CN109551267A (en) * | 2018-10-12 | 2019-04-02 | 江西昌河航空工业有限公司 | A kind of centering pressing device |
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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: 20140402 Termination date: 20200905 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |