CN204725195U - Quick despatch expanding mandrel - Google Patents
Quick despatch expanding mandrel Download PDFInfo
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- CN204725195U CN204725195U CN201520450154.0U CN201520450154U CN204725195U CN 204725195 U CN204725195 U CN 204725195U CN 201520450154 U CN201520450154 U CN 201520450154U CN 204725195 U CN204725195 U CN 204725195U
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- expansion sleeve
- mandrel
- pressing plate
- hole
- quick despatch
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Abstract
The utility model discloses quick despatch expanding mandrel, comprise connection mandrel, expansion sleeve with taper hole and pressing plate, the front end of described connection mandrel is taper shaft part, expansion sleeve is sleeved on the front end connecting mandrel, the two contact surface matches, described expansion sleeve is provided with the uniform strip gab seam of some axis, described pressing plate contacts with expansion sleeve, pressing plate is arranged on the front end surface connecting mandrel by housing screw, described connection mandrel is provided with several and axially uniformly ejects hole, eject hole be provided with spring from inside to outside successively and eject pin, the described end ejecting pin withstands on expansion sleeve away from another end face of pressing plate, the opening direction of described strip gab seam is arranged alternately, and the excircle at described expansion sleeve heavy wall place is provided with annular grooving, the utility model has following beneficial effect: have accuracy of alignment high, can automatic capturing, and taper-face contact rate is high, realizes parts gapless clamping, long service life, intensity is high, security performance is high, dismantle efficient and convenient.
Description
Technical field
The utility model relates to the technical field of machining, is specifically related to a kind of quick despatch expanding mandrel.
Background technology
At the difficult clamping of machining profile, there is multistage endoporus and size, during the high parts occasion of shaped position required precision, technical staff loads onto ring flange and fixed central spindle on Digit Control Machine Tool, fixed central spindle's cylindrical and parts inner hole, again the many places briquetting that ring flange is arranged is compressed parts outer surface, realize the machining to parts, after the method for this positioning and clamping parts can make parts machining, shaped position trueness error is larger, quality of production stability is low, affect the follow-up assembly precision of parts, reduce Whole Equipment performance, because be matched in clearance between parts endoporus and fixed central spindle's cylindrical, parts accuracy of alignment is not high, and the method complex operation of this positioning and clamping parts, work consuming is consuming time, efficiency is low, and easily there is the security incident flown out because briquetting gets loose in process of production in parts.
Utility model content
Technical problem to be solved in the utility model is to provide one can self-centering gapless clamping, and accuracy of alignment is high, and security performance is high, dismantles quick despatch expanding mandrel fast and easily.
The technical solution realizing the utility model object is: quick despatch expanding mandrel, comprise connection mandrel, expansion sleeve with taper hole and pressing plate, the front end of described connection mandrel is taper shaft part, described expansion sleeve is sleeved on the front end connecting mandrel, the two contact surface matches, described expansion sleeve is provided with the uniform strip gab seam of some axis, described pressing plate contacts with expansion sleeve, described pressing plate is arranged on the front end surface connecting mandrel by housing screw, it is characterized in that: described connection mandrel is provided with several and axially uniformly ejects hole, eject hole be provided with spring from inside to outside successively and eject pin, the described end ejecting pin withstands on expansion sleeve away from another end face of pressing plate.
The opening direction of described strip gab seam is arranged alternately, and the two ends that namely strip gab is sewn on expansion sleeve are crisscross arranged.
The excircle at described expansion sleeve heavy wall place is provided with annular grooving.
Described connection mandrel excircle is provided with dismounting blind hole.
The utility model quick despatch expanding mandrel has following beneficial effect: have accuracy of alignment high, can automatic capturing, and taper-face contact rate is high, realizes parts gapless clamping; Long service life, intensity is high; Security performance is high; Dismantle efficient and convenient.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the utility model is elaborated;
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of connection mandrel of the present utility model;
Fig. 3 is the structural representation of expansion sleeve of the present utility model.
Detailed description of the invention
As shown in FIG. 1 to 3, quick despatch expanding mandrel, comprises and connects mandrel 1, the expansion sleeve 2 being with taper hole 2.1 and pressing plate 3; The front end 1.1 of described connection mandrel 1 is taper shaft part, and rear end axial centre is provided with the installing hole 1.2 that the screw rod on Digit Control Machine Tool is installed, and excircle is provided with dismounting blind hole 1.3; Described expansion sleeve 2 is sleeved on the front end 1.1 connecting mandrel 1, the two contact surface matches, described expansion sleeve 2 is provided with the uniform strip gab seam 2.2 of some axis, the opening direction of described strip gab seam 2.2 is arranged alternately, namely strip gab seam 2.2 is crisscross arranged at the two ends of expansion sleeve 2, the excircle at described expansion sleeve 2 heavy wall place is provided with annular grooving 2.3, expansion sleeve 2 is out of shape evenly, thus the inner periphery of expansion sleeve 2 excircle and parts 7 realizes gapless clamping; Described pressing plate 3 contacts with expansion sleeve 2, pressing plate 3 is arranged on the front end surface connecting mandrel 1 by housing screw 4, by screwing housing screw 4, the axial compressive force of pressured plate 3 promote expansion sleeve 2 on connection mandrel 1 after move, described connection mandrel 1 is provided with several and axially uniformly ejects hole 1.4, eject hole 1.4 be provided with spring 5 from inside to outside successively and eject pin 6, described in eject pin 6 end withstand on expansion sleeve 2 away from another end face of pressing plate 3.
Operation principle: first use screw rod precession installing hole 1.2, connection mandrel 1 is installed on Digit Control Machine Tool, beat after showing to correct connection mandrel 1, expansion sleeve 2 is sleeved on the front end 1.1 taper shaft part of connection mandrel 1, pre-stubborn housing screw 4, being installed to by parts 7 cover connects on mandrel 1 again, screw housing screw 4, move after the axial compressive force promotion expansion sleeve 2 of pressured plate 3, effect by front end 1.1 conical surface connecting mandrel 1 makes expansion sleeve 2 distending, external diameter increases, thus eliminate and parts 7 between fit clearance and swelling parts, tension force is utilized to compress, because tension force is more even, decrease the distortion of parts 7.After Digit Control Machine Tool machinery processes parts 7, unscrew housing screw 4, unclamp pressing plate 3, eject pin 6, under the effect of spring 5, expansion sleeve 2 is pushed up pine, then can unload parts 7 like a cork fast.
Claims (4)
1. quick despatch expanding mandrel, comprise connection mandrel, expansion sleeve with taper hole and pressing plate, the front end of described connection mandrel is taper shaft part, described expansion sleeve is sleeved on the front end connecting mandrel, the two contact surface matches, described expansion sleeve is provided with the uniform strip gab seam of some axis, described pressing plate contacts with expansion sleeve, described pressing plate is arranged on the front end surface connecting mandrel by housing screw, it is characterized in that: described connection mandrel is provided with several and axially uniformly ejects hole, eject hole be provided with spring from inside to outside successively and eject pin, the described end ejecting pin withstands on expansion sleeve away from another end face of pressing plate.
2. quick despatch expanding mandrel according to claim 1, is characterized in that: the opening direction of described strip gab seam is arranged alternately, and the two ends that namely strip gab is sewn on expansion sleeve are crisscross arranged.
3. quick despatch expanding mandrel according to claim 1, is characterized in that: the excircle at described expansion sleeve heavy wall place is provided with annular grooving.
4. quick despatch expanding mandrel according to claim 1, is characterized in that: described connection mandrel excircle is provided with dismounting blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520450154.0U CN204725195U (en) | 2015-06-25 | 2015-06-25 | Quick despatch expanding mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520450154.0U CN204725195U (en) | 2015-06-25 | 2015-06-25 | Quick despatch expanding mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204725195U true CN204725195U (en) | 2015-10-28 |
Family
ID=54383578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520450154.0U Active CN204725195U (en) | 2015-06-25 | 2015-06-25 | Quick despatch expanding mandrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204725195U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108436124A (en) * | 2018-05-18 | 2018-08-24 | 兰州城市学院 | A kind of symmetrical bikini expanding arbor fixture |
| CN110788795A (en) * | 2019-11-14 | 2020-02-14 | 中车大连机车车辆有限公司 | Centering device and centering method for diesel engine pump supporting box |
-
2015
- 2015-06-25 CN CN201520450154.0U patent/CN204725195U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108436124A (en) * | 2018-05-18 | 2018-08-24 | 兰州城市学院 | A kind of symmetrical bikini expanding arbor fixture |
| CN108436124B (en) * | 2018-05-18 | 2024-02-06 | 兰州城市学院 | Symmetrical three-point type expandable mandrel clamp |
| CN110788795A (en) * | 2019-11-14 | 2020-02-14 | 中车大连机车车辆有限公司 | Centering device and centering method for diesel engine pump supporting box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170628 Address after: 528000, No. 31, West Third Ring Road (South lion), Nanhai District, Guangdong, Foshan Co-patentee after: FOSHAN NANFANG-RITCO ENERGY CLEAN TECHNOLOGY CO., LTD. Patentee after: Nanfang Ventilator Co., Ltd. Address before: 528225 Foshan South Road, Shishan Road, Nanhai District, Guangdong, Patentee before: Nanfang Ventilator Co., Ltd. |
|
| TR01 | Transfer of patent right |