CN1315607C - Dual rotation structure of core clamper - Google Patents
Dual rotation structure of core clamper Download PDFInfo
- Publication number
- CN1315607C CN1315607C CNB2005100797471A CN200510079747A CN1315607C CN 1315607 C CN1315607 C CN 1315607C CN B2005100797471 A CNB2005100797471 A CN B2005100797471A CN 200510079747 A CN200510079747 A CN 200510079747A CN 1315607 C CN1315607 C CN 1315607C
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- CN
- China
- Prior art keywords
- main shaft
- workpiece
- core
- tailstock
- shift fork
- 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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- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The present invention relates to a dual rotation core clamper structure for an ultra-precise external grinder. The present invention is characterized in that two rotary main shafts are respectively arranged on a headstock and a tailstock which are fixed on a machine tool table top; a core clamper is matched on the main shaft by Morse taper, withstands a workpiece and rotates with the main shaft together; one end of a shifting fork is fixed on the main shaft, and the other end is connected with the workpiece; a shifting fork of the headstock rotates with the main shaft, and drives a tailstock core clamper to rotate through a shifting fork of the tailstock on a workpiece. In the present invention, the mode that a rotary main shaft with a bearing is arranged in each of the headstock and the tailstock to drive the core clampers to rotate is adopted, in order to cause the two core clampers and processed parts to rotate simultaneously; the contact between the two core clampers and the workpieces is just used for rigid positioning without relative sliding between the core clampers and the workpieces; the precision of the workpieces is completely ensured by the main shaft rotation precision of the headstock and the tailstock, and has no direct relation with a core clamper hole; therefore, the segment of refining the core clamper hole is technologically omitted, and high surface quality and shape precision can be realized.
Description
Technical field
The present invention relates to a kind of dual rotation structure of core clamper that is used for the ultraprecise cylindrical grinder.
Background technology
Traditional cylindrical grinder top tip structure is respectively to stretch out one top 1 and 6 by the headstock 2 and the tailstock 7 that are fixed on the platen face, and the headstock 2 front ends are shift fork 3,4 fixedly; In grinding, something or somebody to fall back on frame 2 produces a gyration, thereby make workpiece 5 also revolution under the drive of shift fork 3 and 4, top 1 and 6 does not move, top 1 and 6 of the headstock, tailstock is to be in relative sliding mode in grinding and between the workpiece 5, like this, the precision of workpiece center hole reaches and top contact condition, just directly influences the surface quality and the form accuracy of workpiece.Owing to drive the workpiece revolution by shift fork 3 and 4 in this structure, and former and later two toply all do not turn round, therefore, expect high-quality surface of the work, high-precision center hole is necessary on the workpiece, particularly the occasion of processing at ultraprecise, the processing of high-precision center hole seems even more important, but high-precision center hole forms by high-caliber grinder hand lapping often, and efficient is very low.
Summary of the invention
The purpose of this invention is to provide a kind of dual rotation structure of core clamper that improves grinding efficiency.Technical solution of the present invention is, be fixed on a main shaft 9 that has bearing 8 is set in the headstock 2 on the platen face, top 1 usefulness Morse's taper is coupled on the main shaft 9, and main shaft 9 is by driven by motor revolution, and top 1 withstands an end of workpiece 5 and together rotates with main shaft 9; Shift fork 3 is fixed on the main shaft 9, and shift fork 3 is connected as a single entity with shift fork 4, and shift fork 4 joins with an end of workpiece 5; A main shaft 13 that has bearing 12 is set in the tailstock 7, and top 6 usefulness Morse's tapers are coupled on the main shaft 13 and withstand the other end of workpiece 5, and shift fork 10 joins with the other end of workpiece 5, and shift fork 10 is connected as a single entity with shift fork 11, and shift fork 11 is fixed on the main shaft 13; Shift fork 3,4 drives main shaft 13 and top 6 revolutions with main shaft 9 revolutions by the shift fork on the workpiece 5 10,11.According to different required precisions, used bearing can be sliding bearing, rolling bearing, also can be gas bearing, can also be liquid-bearing.The present invention adopts the mode that rotary main shaft that tape spool holds drives top rotation respectively is set in the headstock and tailstock, two top and parts to be processed are turned round simultaneously, form " dual rotation structure of core clamper ", contacting between two top and the workpiece just is used for the rigidity location, there is no relative slip between them, the precision of workpiece is just guaranteed by the spindle rotation accuracy of the headstock and tailstock fully, there is no direct relation with center hole, this has just avoided the link of refine center hole, on technology, save the link of refine center hole, and can realize high surface quality and form accuracy, improve the efficient of processing greatly.Cooperating of top and rotary main shaft, adopt Morse's taper to cooperate, make change very convenient.Adopt the part of equipment machine tooling form accuracy of the present invention (referring to circularity) requirement below 0.3 μ m, the qualification rate that once is installed is more than 95%, and machining accuracy (referring to circularity) can reach below the 0.15 μ m.The 15-20 that increases work efficiency doubly.
Description of drawings
Fig. 1 is existing top tip structure schematic diagram;
Fig. 2 is a top tip structure schematic diagram of the present invention.
The specific embodiment
The headstock 2 and tailstock 7 are fixed on the platen face, the headstock 2 and tailstock 7 respectively have one can rotating main shaft 9 and 13, can rotating main shaft 9 and 13 promptly be between the headstock 2 housings (or tailstock 7) and main shaft 9 (or main shaft 13), to have added bearing 8 (or bearing 12), be coupled to top 1 and top 6 respectively on main shaft 9 and the main shaft 13 by Morse's taper, and workpiece 5 jack-up are come with these two top 1 and 6, because top 1 and 6 can be with main shaft 9 and 13 revolutions, so promptly formed " dual rotation structure of core clamper ", in grinding, the main shaft 9 of the headstock 2 is in the driven by motor turning down, top 1 by shift fork 3,4 drive workpiece 5 revolutions, and workpiece 5 is by shift fork 10,11 drive top 6 revolutions of tailstock 7, contacting between the workpiece 5 and top 1 and top 6 just is used for the rigidity location like this, do not slide relatively and have, thereby, the precision of center hole and just do not had direct influence for the surfacing precision of workpiece with top contact condition.At the required precision of grinding workpiece, the present invention adopts multi-form bearing, and the form of bearing can be sliding bearing, rolling bearing, also can be gas bearing, can also be liquid-bearing.
Claims (3)
1. one kind by the headstock, tailstock, the top dual rotation structure of core clamper of forming, it is characterized in that, a main shaft (9) that has bearing (8) is set in the headstock (2), top (1) is assembled on the main shaft (9), main shaft (9) is by the driven by motor revolution, and top (1) is withstood an end of workpiece (5) and together rotated with main shaft (9); Shift fork (3) is fixed on the main shaft (9), and shift fork (3) is connected as a single entity with shift fork (4), and shift fork (4) joins with an end of workpiece (5); A main shaft (13) that has bearing (12) is set in the tailstock (7), top (6) are assembled to main shaft (13) and go up and withstand the other end of workpiece (5), shift fork (10) joins with the other end of workpiece (5), shift fork (10) is connected as a single entity with shift fork (11), and shift fork (11) is fixed on the main shaft (13); Shift fork (3,4) drives main shaft (13) and top (6) revolution with main shaft (9) revolution by the shift fork on the workpiece (5) (10,11).
2. dual rotation structure of core clamper according to claim 1 is characterized in that, makes main shaft (9) and the rotating bearing of main shaft (13) can be sliding bearing or rolling bearing or gas bearing or liquid-bearing.
3. dual rotation structure of core clamper according to claim 1 is characterized in that, top and cooperating of main shaft are that Morse's taper cooperates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100797471A CN1315607C (en) | 2005-06-28 | 2005-06-28 | Dual rotation structure of core clamper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100797471A CN1315607C (en) | 2005-06-28 | 2005-06-28 | Dual rotation structure of core clamper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1695850A CN1695850A (en) | 2005-11-16 |
| CN1315607C true CN1315607C (en) | 2007-05-16 |
Family
ID=35348830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100797471A Expired - Fee Related CN1315607C (en) | 2005-06-28 | 2005-06-28 | Dual rotation structure of core clamper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1315607C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049541B (en) * | 2009-11-03 | 2012-11-28 | 吴炫隆 | Chuck device with top core and machine tool with same |
| CN102049688A (en) * | 2009-11-04 | 2011-05-11 | 天津市宝涞精密机械有限公司 | Crankshaft automatic positioning and clamping mechanism |
| CN102717098A (en) * | 2012-06-06 | 2012-10-10 | 无锡市高田机械有限公司 | Structure for numerically controlled lathe for turning aluminum base-photoconductor drum |
| CN102773773A (en) * | 2012-07-02 | 2012-11-14 | 王庆 | Device for grinding steering knuckle main shaft |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4828437A (en) * | 1987-06-15 | 1989-05-09 | The Warner & Swasey Company | Apparatus for supporting a workpiece |
| CN2170824Y (en) * | 1993-07-01 | 1994-07-06 | 大连理工大学 | Clamping device for automatic relieving machine tool |
| US5373760A (en) * | 1992-05-18 | 1994-12-20 | Schmidt; Harlan J. | Live center adapter assembly for machine tools |
| CN1347780A (en) * | 2000-10-02 | 2002-05-08 | 精工电子有限公司 | Centring device and machine tool with the same centring device |
-
2005
- 2005-06-28 CN CNB2005100797471A patent/CN1315607C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4828437A (en) * | 1987-06-15 | 1989-05-09 | The Warner & Swasey Company | Apparatus for supporting a workpiece |
| US5373760A (en) * | 1992-05-18 | 1994-12-20 | Schmidt; Harlan J. | Live center adapter assembly for machine tools |
| CN2170824Y (en) * | 1993-07-01 | 1994-07-06 | 大连理工大学 | Clamping device for automatic relieving machine tool |
| CN1347780A (en) * | 2000-10-02 | 2002-05-08 | 精工电子有限公司 | Centring device and machine tool with the same centring device |
Non-Patent Citations (1)
| Title |
|---|
| Comm125超精密外圆磨床磨削工艺实验研究 张彬，杨辉，航空精密制造技术，第40卷第5期 2004 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1695850A (en) | 2005-11-16 |
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