CN202824717U - Clamp for hollow shaft part - Google Patents
Clamp for hollow shaft part Download PDFInfo
- Publication number
- CN202824717U CN202824717U CN 201220565723 CN201220565723U CN202824717U CN 202824717 U CN202824717 U CN 202824717U CN 201220565723 CN201220565723 CN 201220565723 CN 201220565723 U CN201220565723 U CN 201220565723U CN 202824717 U CN202824717 U CN 202824717U
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- CN
- China
- Prior art keywords
- hollow shaft
- shaft type
- type parts
- anchor clamps
- expansion set
- 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 provides a clamp for a hollow shaft part. The clamp comprises a solid shaft and an expansion device arranged on the solid shaft. The expansion device comprises an expansion part and a driving part. The expansion part is used for tightening the inner wall of the hollow shaft part. The driving part is used for changing the size of the expansion device so that the expansion part evenly tightens the inner wall of the hollow shaft part. By utilization of the technical scheme, due to the fact that the solid shaft and the expansion part which are capable of evenly tightening the inner wall of the hollow shaft part are arranged, wherein the expansion device is arranged on the solid shaft and comprises the expansion part and the driving part, the effect that the hollow shaft part and the clamp are integrally connected is achieved, and the hollow shaft part is prevented from being deformed during the clamping installation process.
Description
Technical field
The utility model relates to mechanical manufacturing field, in particular to a kind of hollow shaft type parts anchor clamps.
Background technology
The personal rapid transit locomotive industry of high speed development now, hollow shaft is the strength member of drive mechanism, research and the crudy that improves hollow shaft can be the bogie safe operation provides technical guarantee.Prior art hollow core Machining of Shaft-type Parts, general employing clamps the method for cylindrical or stretching inwall, but these two kinds of chucking methods can produce the problem that clamps distortion for thin-wall part, cause crudy to reduce even can't satisfy the situation of product function requirement.
The utility model content
The utility model aims to provide a kind of hollow shaft type parts anchor clamps, adds the technique effect that can not produce distortion man-hour to reach hollow shaft type parts being installed.
To achieve these goals, the utility model provides a kind of hollow shaft type parts anchor clamps, comprising: solid shafting and the swelling device that is arranged on the solid shafting, and swelling device comprises: swelling section, for the inwall of stretching hollow shaft type parts; Drive division be used for to change the size of swelling section so that the swelling section inwall of stretching hollow shaft type parts equably.
Further, swelling section comprises: tapered portion, be arranged on the solid shafting, and an end position of the close solid shafting of tapered portion is to increasing gradually away from the end direction diameter; Expansion set, expansion set has the cone-shaped inner surface that cooperates with tapered portion and can move along the axial direction of tapered portion under the driving of drive division, the inner surface size of expansion set and outer surface size are along with changing with the variation of the axial location of tapered portion, and the outer surface of expansion set is used for the inwall of stretching hollow shaft type parts.
Further, drive division comprises: the threaded portion is arranged between the end face of end of tapered portion and solid shafting; Clamp nut cooperates with the threaded portion, and it is in axial direction mobile to be used for driving expansion set.
Further, expansion set be provided with opening towards a plurality of first slits of end direction and opening towards a plurality of the second slits away from end direction, a plurality of the first slits and a plurality of the second slit along expansion set circumferentially successively the interval arrange.
Further, the interval equates between every adjacent two the first slits; The interval equates between every adjacent two the second slits.
Further, swelling device also comprises be used to the anti-skidding section that prevents that clamp nut is loosening.
Further, anti-skidding section comprises the locating snap ring that is arranged at the locking groove on the solid shafting and has the Access Division that cooperates with locking groove, and locating snap ring is arranged between expansion set and the clamp nut.
Further, clamp nut is provided with and screws the hole.
Further, swelling device is two, is arranged at respectively the position of the close end at solid shafting two ends.
Further, the solid shafting both ends of the surface are provided with the centre bore that cooperates for lathe centre.
Use the technical solution of the utility model, by solid shafting being set and being positioned at the equably inwall of stretching hollow shaft type parts of swelling device on the solid shafting, that comprise swelling section and drive division, reach hollow shaft type parts and the effect that the anchor clamps one is connected, prevent that hollow shaft type parts from producing distortion in installation process.
Further, expansion set to moving away from the solid shafting end direction, and by the tapered portion that diameter increases gradually, increases the outer surface size of expansion set under the effect of clamp nut gradually, until be adjacent to the inwall of hollow shaft type parts, prevent that hollow shaft type parts from producing distortion in installation process.
Further, cooperate with breaker slot by locating snap ring, can prevent that clamp nut is loosening in process.
Description of drawings
The Figure of description that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the tomograph according to the hollow shaft type parts anchor clamps among the utility model embodiment;
Fig. 2 is the tomograph according to the solid shafting of the hollow shaft type parts anchor clamps among the utility model embodiment;
Fig. 3 is the tomograph according to the expansion set of the hollow shaft type parts anchor clamps among the utility model embodiment;
Fig. 4 is the tomograph according to the hold-down nut of the hollow shaft type parts anchor clamps among the utility model embodiment;
Fig. 5 is the tomograph according to the locating snap ring of the hollow shaft type parts anchor clamps among the utility model embodiment;
Fig. 6 is the assembly structure figure according to the hollow shaft type parts among the utility model embodiment and hollow shaft type parts anchor clamps.
The specific embodiment
Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
The utility model provides a kind of hollow shaft type parts anchor clamps.Wherein, hollow shaft type parts is the part that the axis body center is provided with a through hole, for example comprises typical thin-wall part in electric locomotive six jointed gear units.
To shown in Figure 5, above-mentioned hollow shaft type parts anchor clamps comprise such as Fig. 1: solid shafting 1 and the swelling device that is arranged on the solid shafting 1, swelling device is the inwall of stretching hollow shaft type parts equably.Swelling device comprises swelling section and drive division.Swelling section is used for the inwall of the described hollow shaft type parts of stretching.Drive division is used for changing the size of described swelling section so that the described swelling section inwall of the described hollow shaft type parts of stretching equably.Swelling device is set reaches hollow shaft type parts and the effect that the anchor clamps one is connected, prevent that hollow shaft type parts from producing distortion in installation process.
Particularly, the swelling section of swelling device comprises tapered portion 11 and expansion set 2.Tapered portion 11 is arranged on the solid shafting 1, and an end position of tapered portion 11 close solid shaftings 1 is to increasing gradually away from the end direction diameter.Expansion set 2 has the cone-shaped inner surface that cooperates with tapered portion 11 and can move along the axial direction of tapered portion 11 under the driving of drive division, the outer surface diameter of expansion set 2 is along with changing with the variation of the axial location of tapered portion 11, and the outer surface of expansion set 2 is used for the inwall of stretching hollow shaft type parts.
As shown in Figure 3, expansion set 2 be provided with opening towards a plurality of first slits of end direction and opening towards a plurality of the second slits away from end direction, a plurality of the first slits and a plurality of the second slit arrange along the circumferential interval of expansion set 2.Preferably, spaced set between per two the first adjacent slits; Spaced set between per two the second adjacent slits.
The drive division of swelling device comprises threaded portion 12 and clamp nut 3.Threaded portion 12 is arranged between the end face of respective end of tapered portion 11 and solid shafting 1.Clamp nut 3 cooperates with threaded portion 12, in axial direction moves and expansion set 2 and hollow shaft type parts and solid shafting 1 are locked for driving expansion set 2.Expansion set 2 under the effect of clamp nut 3 to moving away from the solid shafting end direction, and the tapered portion that increases gradually by diameter, the outside diameter of expansion set 2 is increased gradually, until be adjacent to the inwall of hollow shaft type parts, prevent that hollow shaft type parts from producing distortion in installation process.
Swelling device also comprises be used to the anti-skidding section that prevents that clamp nut 3 from becoming flexible.Such as Fig. 2 and shown in Figure 4, anti-skidding section comprises the locking groove 13 that is arranged on the solid shafting 1 and the locating snap ring 4 with the Access Division that cooperates with locking groove 13, and locating snap ring 4 is arranged between expansion set 2 and the clamp nut 3.Locking groove 13 and locating snap ring 4 are set, by locating snap ring 4 inside protrusions and locking groove 13 clampings, can prevent that locating snap ring 4 from rotating, thereby prevent from rotating with the clamp nut 3 of locating snap ring 4 butts, reach the purpose that prevents that clamp nut 3 becomes flexible in process.Further, clamp nut 3 also is provided with screws the hole, clamp nut 3 can be cooperated with corresponding instrument tighten.
Swelling device in the utility model is two, is arranged at respectively the position of the close end at solid shafting 1 two ends.Solid shafting 1 both ends of the surface also are provided with the centre bore that cooperates for lathe centre.As shown in Figure 6, hollow shaft type parts and hollow shaft type parts anchor clamps link together just as a solid integral body, utilize the centre bore at solid shafting 1 two ends to cooperate with lathe centre, can process the cylindrical everywhere of hollow shaft type parts.
Above embodiment should not limit the utility model, and swelling section and drive division are not limited to above embodiment in the swelling device.For example, in a not shown embodiment, swelling section comprises and being arranged on the solid shafting, along the circumferential uniform a plurality of cam surfaces of solid shafting, also comprise and have a plurality of auxiliary sections of separating each other, the outer surface of each auxiliary section surrounds and forms the engage sleeves that adapts with the hollow shaft type parts shape inner surface of each auxiliary section with each cam surface corresponding matching respectively, drive division links to each other with engage sleeves, change matching part between each auxiliary section and the corresponding cam surface by rotating drive section, thereby the appearance and size that enlarges engage sleeves realizes the swelling between hollow shaft type parts and the anchor clamps.
From above description, can find out, the utility model the above embodiments have realized following technique effect: expansion set under the effect of clamp nut to moving away from the solid shafting end direction, and the tapered portion that increases gradually by diameter, the outside diameter of expansion set is increased gradually, until be adjacent to the inwall of hollow shaft type parts, reach hollow shaft type parts and the effect that the anchor clamps one is connected, prevent that hollow shaft type parts from producing distortion in installation process.
Further, locating snap ring cooperates with breaker slot, prevents that clamp nut is loosening in process.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. hollow shaft type parts anchor clamps is characterized in that, comprising: solid shafting (1) and be arranged at swelling device on the described solid shafting (1), and described swelling device comprises:
Swelling section is for the inwall of the described hollow shaft type parts of stretching;
Drive division is used for changing the size of described swelling section so that the described swelling section inwall of the described hollow shaft type parts of stretching equably.
2. hollow shaft type parts anchor clamps according to claim 1 is characterized in that, described swelling section comprises:
Tapered portion (11) is arranged on the described solid shafting (1), and an end position of the close described solid shafting (1) of described tapered portion (11) is to increasing gradually away from described end direction diameter;
Expansion set (2), described expansion set (2) has the cone-shaped inner surface that cooperates with described tapered portion (11) and can move along the axial direction of described tapered portion (11) under the driving of described drive division, the inner surface size of described expansion set (2) and outer surface size are along with changing with the variation of the axial location of described tapered portion (11), and the outer surface of described expansion set (2) is used for the inwall of the described hollow shaft type parts of stretching.
3. hollow shaft type parts anchor clamps according to claim 2 is characterized in that, described drive division comprises:
Threaded portion (12) is arranged between the end face of described end of described tapered portion (11) and described solid shafting (1);
Clamp nut (3) cooperates with described threaded portion (12), is used for driving described expansion set (2) and moves along described axial direction.
4. according to claim 2 or 3 described hollow shaft type parts anchor clamps, it is characterized in that, described expansion set (2) be provided with opening towards a plurality of first slits of described end direction and opening towards a plurality of the second slits away from described end direction, a plurality of described the first slits and a plurality of described the second slit along described expansion set (2) circumferentially successively the interval arrange.
5. hollow shaft type parts anchor clamps according to claim 4 is characterized in that, the interval equates between every adjacent two described the first slits; The interval equates between every adjacent two described the second slits.
6. hollow shaft type parts anchor clamps according to claim 3 is characterized in that, described swelling device also comprises be used to the anti-skidding section that prevents that clamp nut (3) is loosening.
7. hollow shaft type parts anchor clamps according to claim 6, it is characterized in that, described anti-skidding section comprises the locking groove (13) that is arranged on the described solid shafting (1) and the locating snap ring (4) with the Access Division that cooperates with described locking groove (13), and described locating snap ring (4) is arranged between described expansion set (2) and the described clamp nut (3).
8. hollow shaft type parts anchor clamps according to claim 3 is characterized in that, described clamp nut (3) is provided with screws the hole.
9. according to claim 1 and 2 or 3 described hollow shaft type parts anchor clamps, it is characterized in that described swelling device is two, be arranged at respectively the position of the close end at described solid shafting (1) two ends.
10. according to claim 1 and 2 or 3 described hollow shaft type parts anchor clamps, it is characterized in that described solid shafting (1) both ends of the surface are provided with the centre bore that cooperates for lathe centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565723 CN202824717U (en) | 2012-10-25 | 2012-10-25 | Clamp for hollow shaft part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565723 CN202824717U (en) | 2012-10-25 | 2012-10-25 | Clamp for hollow shaft part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202824717U true CN202824717U (en) | 2013-03-27 |
Family
ID=47936510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220565723 Expired - Fee Related CN202824717U (en) | 2012-10-25 | 2012-10-25 | Clamp for hollow shaft part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202824717U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296559A (en) * | 2013-05-15 | 2013-09-11 | 赵维 | Stamping end-punching mechanism |
| CN106112043A (en) * | 2016-08-11 | 2016-11-16 | 芜湖金源机械制造有限公司 | Be suitable to the elastic expansion sleeve of engine crankshaft damper pulley dynamic balance jig |
| CN109550989A (en) * | 2018-12-24 | 2019-04-02 | 平湖市职业中学 | A kind of motor casing workpiece machining clamp |
| CN109807773A (en) * | 2019-02-20 | 2019-05-28 | 湖北久之洋红外系统股份有限公司 | A kind of long-shaft type inner cavity positioning device |
-
2012
- 2012-10-25 CN CN 201220565723 patent/CN202824717U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296559A (en) * | 2013-05-15 | 2013-09-11 | 赵维 | Stamping end-punching mechanism |
| CN103296559B (en) * | 2013-05-15 | 2018-06-15 | 南京鼎典科技有限公司 | A kind of punching press end-beating machine structure |
| CN106112043A (en) * | 2016-08-11 | 2016-11-16 | 芜湖金源机械制造有限公司 | Be suitable to the elastic expansion sleeve of engine crankshaft damper pulley dynamic balance jig |
| CN106112043B (en) * | 2016-08-11 | 2017-12-15 | 芜湖金源机械制造有限公司 | Elastic expansion sleeve suitable for engine crankshaft damper pulley dynamic balance jig |
| CN109550989A (en) * | 2018-12-24 | 2019-04-02 | 平湖市职业中学 | A kind of motor casing workpiece machining clamp |
| CN109807773A (en) * | 2019-02-20 | 2019-05-28 | 湖北久之洋红外系统股份有限公司 | A kind of long-shaft type inner cavity positioning 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20191025 |