CN105312914A - Gapless mandrel - Google Patents
Gapless mandrel Download PDFInfo
- Publication number
- CN105312914A CN105312914A CN201410248428.8A CN201410248428A CN105312914A CN 105312914 A CN105312914 A CN 105312914A CN 201410248428 A CN201410248428 A CN 201410248428A CN 105312914 A CN105312914 A CN 105312914A
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- CN
- China
- Prior art keywords
- bushing
- mandrel
- lining
- gapless
- taper
- 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.)
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Abstract
The invention relates to a high-precision gapless mandrel. The gapless mandrel comprises a mandrel body, a first bushing, a second bushing and positioning nuts; the mandrel body is of a stair-shaped structure and comprises two clamping ends, threaded positioning ends connected with the clamping ends and tapered bushing seats connected with the threaded positioning ends; a clearance groove is formed between the tapered bushing seats, three splines are evenly distributed in the circumferential direction of the outer side of each tapered bushing seat in the axial direction, and three spline grooves are evenly formed in the inner circumferential direction of both a central hole of the first bushing and a central hole of the second bushing in the axial direction; the first bushing and the second bushing are installed on the tapered bushing seats in a sleeving mode along the left side and the right side of the mandrel body respectively, and the positioning nuts are connected to the threaded positioning ends in a tight screwing mode along the left side and the right side of the mandrel body to limit the first bushing and the second bushing; the inner hole taper of the first bushing and the inner hole taper of the second bushing is 1:50, and the taper of the tapered bushing seats is also 1:50. The gapless mandrel is reasonable in structure, low in machining cost, high in production efficiency and product precision and good in quality.
Description
Technical field
The present invention relates to a kind of mandrel, specifically a kind of common mandrel irreplaceable high accuracy gapless mandrel.
Background technology
Mandrel is when fine finishining with endoporus positioning datum axle class frock, and common mandrel adopts matched in clearance location, owing to there is gap, must affect the precision of workpiece; And require that the hole size of processing work must be consistent, a collection of workpiece of such guarantee uses a mandrel processing.If inner hole of workpiece size scattered error is large, multiple mandrel must be used just to complete a collection of workpiece.The uniformity of interior hole machined, must increase mill endoporus operation, and this operation is fine finishining, not only increases operation, and adds processing cost, extend the production cycle, have impact on economic efficiency of enterprise.In addition, requirement on machining accuracy is located with two datum holes, and common mandrel cannot meet the requirement of machining accuracy.
The mandrel used in machining at present, structurally adopts all-in-one-piece version, there is certain shortcoming and defect, be in particular in: 1., the inner hole of workpiece of batch machining needs consistent, and the production cycle is long, and processing cost is high, and economy is bad; 2., be matched in clearance between mandrel and workpiece, impact processing product parts accuracy, use have limitation, the product for high-precision requirement is unavailable; 3., by the restriction of Workpiece structure, machining accuracy, common mandrel does not reach requirement.
Summary of the invention
The object of the invention is to provide a kind of rational in infrastructure, processing cost is low, and production efficiency is high, and Product Precision is high, the measured gapless mandrel of matter.
The object of the present invention is achieved like this, this gapless mandrel comprises mandrel main body, first lining, second lining and setscrew nut, described mandrel main body is the version of a stairstepping, comprise two ends to be installed end, connect the screw thread positioning end of the end that is installed, the taper socket seat of connecting thread positioning end, the centre of described taper socket seat has undercut, the outer circumference direction of described each taper socket seat is uniform is vertically provided with three splines, the centre bore inner periphery direction of described first lining and the second lining is uniform vertically has three splines, described first lining and the second lining are sleeved on taper socket seat along the mandrel main body left and right sides respectively, described setscrew nut screws along the mandrel main body left and right sides and is connected to screw thread positioning end and carries out spacing to the first lining and the second lining, the hole taper of described first lining and the second lining is 1:50, the tapering of taper socket seat 7 is also 1:50.
The present invention has the following advantages and good effect:
1, the present invention is owing to making split type version by two of mandrel sections of location, with the conical surface and spline location, can amplify processing work tolerance, and can gapless be accomplished, there is minimizing manufacturing procedure, shorten the processing duration, cut down finished cost, the advantage such as to increase economic efficiency.
2, the present invention is rational in infrastructure, solves two not isometrical location and installation problems, and meets the requirement such as " delivery date is short ", " precision is high ", " quality is good " " cost is low " widely, thus enterprise economic benefit.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is mandrel agent structure schematic diagram of the present invention.
Fig. 3 is the right view of mandrel main body in Fig. 2 of the present invention.
Fig. 4 is the present invention first bush structure schematic diagram.
Fig. 5 is the right view of the first lining in Fig. 4 of the present invention.
Fig. 6 is the present invention second bush structure schematic diagram.
Fig. 7 is the right view of the second lining in Fig. 6 of the present invention.
Detailed description of the invention
By accompanying drawing 1, 2, shown in 3: this gapless mandrel comprises mandrel main body 1, first lining 2, second lining 3 and setscrew nut 4, described mandrel main body 1 is the version of a stairstepping, comprise two ends to be installed end 5, connect the screw thread positioning end 6 of the end 5 that is installed, the taper socket seat 7 of connecting thread positioning end 6, the centre of described taper socket seat 7 has undercut 8, the outer circumference direction of described each taper socket seat 7 is uniform is vertically provided with three splines 9, described first lining 2 and the second lining 3 are sleeved on taper socket seat 7 along mandrel main body 1 left and right sides respectively, described setscrew nut 4 screws along mandrel main body 1 left and right sides and is connected to screw thread positioning end 6 and carries out spacing to the first lining 2 and the second lining 3, the hole taper of described first lining 2 and the second lining 3 is 1:50, the tapering of taper socket seat 7 is also 1:50.
Shown in accompanying drawing 4,5,6,7: the centre bore inner periphery direction of described first lining 2 and the second lining 3 is uniform vertically has three splines 10.
Claims (1)
1. a gapless mandrel, it is characterized in that: this gapless mandrel comprises mandrel main body, first lining, second lining and setscrew nut, described mandrel main body is the version of a stairstepping, comprise two ends to be installed end, connect the screw thread positioning end of the end that is installed, the taper socket seat of connecting thread positioning end, the centre of described taper socket seat has undercut, the outer circumference direction of described each taper socket seat is uniform is vertically provided with three splines, the centre bore inner periphery direction of described first lining and the second lining is uniform vertically has three splines, described first lining and the second lining are sleeved on taper socket seat along the mandrel main body left and right sides respectively, described setscrew nut screws along the mandrel main body left and right sides and is connected to screw thread positioning end and carries out spacing to the first lining and the second lining, the hole taper of described first lining and the second lining is 1:50, the tapering of taper socket seat is also 1:50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410248428.8A CN105312914A (en) | 2014-06-06 | 2014-06-06 | Gapless mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410248428.8A CN105312914A (en) | 2014-06-06 | 2014-06-06 | Gapless mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105312914A true CN105312914A (en) | 2016-02-10 |
Family
ID=55241749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410248428.8A Pending CN105312914A (en) | 2014-06-06 | 2014-06-06 | Gapless mandrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105312914A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623645A (en) * | 2018-12-18 | 2019-04-16 | 重庆跃进机械厂有限公司 | A kind of Hough cam fixing tool and processing method |
| CN110005633A (en) * | 2019-02-20 | 2019-07-12 | 北京星际荣耀空间科技有限公司 | The location structure and application method and dynamic balance of impeller test device of mandrel assembly parts |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB252851A (en) * | 1925-04-25 | 1926-06-10 | Alfred Herbert | Improvements in work-chucking devices for lathes or other machine tools |
| US3654797A (en) * | 1970-03-05 | 1972-04-11 | Lear Siegler Inc | Expanding arbor for tapered holes |
| SU1220878A1 (en) * | 1983-05-13 | 1986-03-30 | Магнитогорский Дважды Ордена Ленина И Ордена Трудового Красного Знамени Металлургический Комбинат Им.В.И.Ленина | Clamping mandrel |
| CN2564289Y (en) * | 2002-09-06 | 2003-08-06 | 哈尔滨飞机工业(集团)有限责任公司 | Automatic centring mandrel |
| CN202539614U (en) * | 2011-12-28 | 2012-11-21 | 包头市佳隆金属制品有限责任公司 | Double-taper sleeve split adjustable turning and grinding mandrel device |
-
2014
- 2014-06-06 CN CN201410248428.8A patent/CN105312914A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB252851A (en) * | 1925-04-25 | 1926-06-10 | Alfred Herbert | Improvements in work-chucking devices for lathes or other machine tools |
| US3654797A (en) * | 1970-03-05 | 1972-04-11 | Lear Siegler Inc | Expanding arbor for tapered holes |
| SU1220878A1 (en) * | 1983-05-13 | 1986-03-30 | Магнитогорский Дважды Ордена Ленина И Ордена Трудового Красного Знамени Металлургический Комбинат Им.В.И.Ленина | Clamping mandrel |
| CN2564289Y (en) * | 2002-09-06 | 2003-08-06 | 哈尔滨飞机工业(集团)有限责任公司 | Automatic centring mandrel |
| CN202539614U (en) * | 2011-12-28 | 2012-11-21 | 包头市佳隆金属制品有限责任公司 | Double-taper sleeve split adjustable turning and grinding mandrel device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623645A (en) * | 2018-12-18 | 2019-04-16 | 重庆跃进机械厂有限公司 | A kind of Hough cam fixing tool and processing method |
| CN110005633A (en) * | 2019-02-20 | 2019-07-12 | 北京星际荣耀空间科技有限公司 | The location structure and application method and dynamic balance of impeller test device of mandrel assembly parts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160210 |
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| WD01 | Invention patent application deemed withdrawn after publication |