CN203664731U - Elastic expansion force core shaft for lathe - Google Patents
Elastic expansion force core shaft for lathe Download PDFInfo
- Publication number
- CN203664731U CN203664731U CN201320755354.8U CN201320755354U CN203664731U CN 203664731 U CN203664731 U CN 203664731U CN 201320755354 U CN201320755354 U CN 201320755354U CN 203664731 U CN203664731 U CN 203664731U
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- core shaft
- lathe
- hole
- shaft
- boss
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Abstract
The utility model relates to an elastic expansion force core shaft for a lathe. The elastic expansion force core shaft comprises a core shaft body and an inner expansion cone shaft. The core shaft body and the inner expansion cone shaft are connected through threads. The core shaft body is made of medium carbon steel which is quenched and tempered. The left side of the core shaft body is provided with a shaft neck and a boss, the right shaft end is provided with a conical hole in a turning mode, the bottom face of the conical hole is provided with a threaded hole, the outer periphery, with the depth a little smaller than that of the conical hole, of the threaded hole is uniformly provided with three to five semi-closed long openings, and the coaxiality of the shaft neck, the boss, the conical hole and the threaded hole is no larger than 0.01mm. Compared with the prior art, the elastic expansion force core shaft has the advantages of being capable of being exchanged and used with parts of the same batch, simple in structure, convenient to clamp and operate, beneficial for improving the production efficiency and the product quality and lowering the production cost, and suitable for the outer circle processing process of other three-jaw-chuck or four-jaw-chuck lathes.
Description
Technical field
The utility model relates to lathe grinding auxiliary mould, particularly elasticity expansive force mandrel for a kind of lathe.
Background technology
In mechanical processing process, turning in batches when large, outer round surface that internal-external circle concentricity is had relatively high expectations, thin-wall sleeve tube kind part, generally using axis as positioning datum, for guaranteeing that once mounting processes whole outlines, is used mandrel class fixture conventionally.During by mandrel clamping and positioning, often utilizing the machining hole of part, in the time of small lot or single-piece work, is all to manufacture mandrel by the size of machining hole, each mandrel is only applicable to single part, can not in batch part, exchange and use, production cost is improved, cause great waste.
Summary of the invention
The utility model has overcome deficiency of the prior art, provides a kind of and can in batch part, exchange the lathe elasticity expansive force mandrel using, and simple in structure, clamping, easy to operate, is conducive to improve production efficiency and product quality, reduces production costs.
In order to address the above problem, the utility model by the following technical solutions:
Elasticity expansive force mandrel for a kind of lathe, comprises mandrel body, the interior swollen axis of cone, and described mandrel body and the interior swollen axis of cone are threaded connection.
Described mandrel body material is medium carbon steel, through modifier treatment.
Axle journal, boss are established in described mandrel body left side, axle head taper turning hole, right side, bottom surface, hole thread mill drilling, than offering equably several semiclosed long mouthful on the smaller excircle of conical bore hole depth length, the coaxiality error of axle journal, boss, conical bore, screwed hole is not more than 0.01mm.
Compared with prior art, the beneficial effects of the utility model are:
The utility model is elasticity expansive force mandrel for a kind of lathe, can in batch part, exchange and use, simple in structure, clamping, easy to operate, be conducive to improve production efficiency and product quality, reduce production costs, be also applicable to other Excircle machining processes with the lathe of scroll chuck or chuck clamping.
Accompanying drawing explanation
Fig. 1 is a kind of lathe of the utility model elasticity expansive force core shaft structure schematic diagram.
Fig. 2 is a kind of lathe of the utility model elasticity expansive force mandrel side view.
Fig. 3 is a kind of lathe of the utility model elasticity expansive force mandrel mandrel body circumferential opening form schematic diagram.
In figure: 1. the interior swollen axis of cone 3. lathe chuck 4. work pieces of mandrel body 2.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further:
Seeing Fig. 1, is a kind of lathe of the utility model elasticity expansive force core shaft structure schematic diagram, comprises mandrel body 1, the interior swollen axis of cone 2.Described mandrel body 1 is threaded connection with the interior swollen axis of cone 2.Described mandrel body 1 material is medium carbon steel, through modifier treatment.Axle journal, boss are established in mandrel body 1 left side, axle head taper turning hole, right side, bottom surface, hole thread mill drilling, than offering equably 3～5 semiclosed long mouthful on the smaller excircle of conical bore hole depth length, the axiality of axle journal, boss, conical bore, screwed hole is not more than 0.01mm.
When use, by the left side axle journal clamping of mandrel body 1 in the chuck hole of lathe chuck 3, rotate lathe chuck 3, with clamping after the boss cylindrical on dial gauge centering mandrel body 1, turn and unclamp the interior swollen axis of cone 2 with spanner, now mandrel body 1 relies on the elasticity of material to return to original diameter, then by the inner hole sleeve of work piece 4 on mandrel body 1, between the endoporus of work piece 4 and mandrel body 1, adopt matched in clearance, be applicable to use with batch component interchanging.Again tighten the interior swollen axis of cone 2 with spanner, due to the wedge action of the conical surface, mandrel body 1 upper shed part distending, the endoporus of work piece and mandrel body closely cooperate, and now work piece 4 self-centerings also clamp, between this clamping mode work piece and mandrel body, contact-making surface is large, clamping power is evenly distributed, and work piece radial deformation is little, can guarantee dimensional accuracy, axiality and the circularity of work piece cylindrical, also can be used to size end face, guarantee the perpendicularity of end face and axis simultaneously.
Claims (1)
1. an elasticity expansive force mandrel for lathe, comprises mandrel body, the interior swollen axis of cone, and described mandrel body and the interior swollen axis of cone are threaded connection; Axle journal, boss are established in described mandrel body left side, axle head taper turning hole, right side, bottom surface, hole thread mill drilling, than offering equably several semiclosed long mouthful on the smaller excircle of conical bore hole depth length, the coaxiality error of axle journal, boss, conical bore, screwed hole is not more than 0.01mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755354.8U CN203664731U (en) | 2013-11-25 | 2013-11-25 | Elastic expansion force core shaft for lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755354.8U CN203664731U (en) | 2013-11-25 | 2013-11-25 | Elastic expansion force core shaft for lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203664731U true CN203664731U (en) | 2014-06-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320755354.8U Expired - Fee Related CN203664731U (en) | 2013-11-25 | 2013-11-25 | Elastic expansion force core shaft for lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203664731U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589102A (en) * | 2015-01-12 | 2015-05-06 | 成都四威高科技产业园有限公司 | Rotary table tool for machining aeronautical parts |
| CN106112035A (en) * | 2016-06-27 | 2016-11-16 | 湖北三江航天万峰科技发展有限公司 | The processing unit (plant) of a kind of cone thin-wall case and processing method |
| CN106624009A (en) * | 2016-11-23 | 2017-05-10 | 苏州经贸职业技术学院 | Lathe fixture |
| CN107081563A (en) * | 2017-06-19 | 2017-08-22 | 江西洪都航空工业集团有限责任公司 | A kind of special welding machine rotary main shaft device |
| CN107971510A (en) * | 2017-10-21 | 2018-05-01 | 福州大学 | Ensure the expansive force spindle unit and its method of work of miniature workpiece concentricity |
| CN109482907A (en) * | 2018-11-13 | 2019-03-19 | 北京星航机电装备有限公司 | A kind of processing clamping and processing method of the weak hard parts of thin-walled |
| CN110480041A (en) * | 2018-05-15 | 2019-11-22 | 西安泰富西玛电机有限公司 | A kind of one knife vehicle device of electric machine flange end cap |
| CN111546113A (en) * | 2020-05-18 | 2020-08-18 | 徐州市富圣特工程机械有限公司 | Quill shaft positioning device on high-end numerical control machine tool |
| CN111702394A (en) * | 2020-07-01 | 2020-09-25 | 孙君 | Self-adaptive alignment clamping device suitable for butt welding processing of pipe barrel parts |
-
2013
- 2013-11-25 CN CN201320755354.8U patent/CN203664731U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589102A (en) * | 2015-01-12 | 2015-05-06 | 成都四威高科技产业园有限公司 | Rotary table tool for machining aeronautical parts |
| CN106112035A (en) * | 2016-06-27 | 2016-11-16 | 湖北三江航天万峰科技发展有限公司 | The processing unit (plant) of a kind of cone thin-wall case and processing method |
| CN106624009A (en) * | 2016-11-23 | 2017-05-10 | 苏州经贸职业技术学院 | Lathe fixture |
| CN107081563A (en) * | 2017-06-19 | 2017-08-22 | 江西洪都航空工业集团有限责任公司 | A kind of special welding machine rotary main shaft device |
| CN107971510A (en) * | 2017-10-21 | 2018-05-01 | 福州大学 | Ensure the expansive force spindle unit and its method of work of miniature workpiece concentricity |
| CN110480041A (en) * | 2018-05-15 | 2019-11-22 | 西安泰富西玛电机有限公司 | A kind of one knife vehicle device of electric machine flange end cap |
| CN109482907A (en) * | 2018-11-13 | 2019-03-19 | 北京星航机电装备有限公司 | A kind of processing clamping and processing method of the weak hard parts of thin-walled |
| CN111546113A (en) * | 2020-05-18 | 2020-08-18 | 徐州市富圣特工程机械有限公司 | Quill shaft positioning device on high-end numerical control machine tool |
| CN111702394A (en) * | 2020-07-01 | 2020-09-25 | 孙君 | Self-adaptive alignment clamping device suitable for butt welding processing of pipe barrel parts |
| CN111702394B (en) * | 2020-07-01 | 2022-02-11 | 山东智迈德智能科技有限公司 | Self-adaptive alignment clamping device suitable for butt welding processing of pipe barrel parts |
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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: 20140625 Termination date: 20211125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |