CN104439307A - Shaft workpiece centering structure - Google Patents
Shaft workpiece centering structure Download PDFInfo
- Publication number
- CN104439307A CN104439307A CN201410676028.7A CN201410676028A CN104439307A CN 104439307 A CN104439307 A CN 104439307A CN 201410676028 A CN201410676028 A CN 201410676028A CN 104439307 A CN104439307 A CN 104439307A
- Authority
- CN
- China
- Prior art keywords
- shaft
- workpiece
- centre
- centering
- centring sleeve
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B23/00—Tailstocks; Centres
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a shaft workpiece centering structure. The shaft workpiece centering structure is characterized by comprising a centering sleeve and a positioning piece, the positioning piece and the centering sleeve are coaxially arranged, the positioning piece is used for positioning the centering sleeve, a centering shaft hole is formed in the head portion of the centering sleeve and is a conical hole with the diameter gradually decreasing in the direction from the head portion of the centering sleeve to the tail portion of the centering sleeve so that an inclined positioning face can be formed by the inner side wall of the centering shaft hole, and the positioning face is matched with the conical face of a conical chamfer of a shaft workpiece to be machined so that the shaft workpiece can be centered and clamped. The centering sleeve is arranged, the conical hole in the centering sleeve is matched with the conical face of the chamfer of the shaft workpiece, and therefore the procedure of machining a central hole of the shaft workpiece is omitted, the centering sleeve can be easily manufactured, the conical face positioning universality is high, the application range is wide, and machining steps are simplified; in addition, the positioning clamping rigidity between the conical hole and the conical face is high, centering is stable and reliable, and the bearing capacity is large.
Description
Technical field
The present invention relates to a kind of centering member, especially a kind of adjective-centre structure of shaft-like workpiece.
Background technology
Shaft-like workpiece before processing, needs first to determine its axle center, is then fixed reprocessing to it.The centering of shaft-like workpiece conventional at present adopts cone centre more, and as application number a kind of shaft-like workpiece processing locating centre disclosed in the Chinese patent of 201320776990.9, cone centre comprises cylindrical section and conical section, can feel relieved fast to shaft-like workpiece; And for example application number a kind of hydraulic floating centering clamping driving apparatus disclosed in the Chinese patent application of 201410112455.2, includes top, toply pushes in centre bore that axial workpiece accomplishes fluently in advance.Above-mentioned this adjective-centre structure, all need shaft-like workpiece machining center hole in advance, make processing technology comparatively loaded down with trivial details, cost is higher.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned prior art Problems existing, provides a kind of shaft-like workpiece adjective-centre structure of feeling relieved easy to operate.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of shaft-like workpiece adjective-centre structure, it is characterized in that: the keeper that centring sleeve is located comprising centring sleeve and coaxially arrange with described centring sleeve, the head of described centring sleeve offers centering axis hole, described centering axis hole is diameter from the head of centring sleeve to the diminishing taper hole of caudal directions of centring sleeve, thus make feel relieved axis hole madial wall formed tilt locating surface, the circular cone chamfering of described locating surface and shaft-like workpiece to be processed taper seat adaptation thus shaft-like workpiece is felt relieved and clamps.
According to an aspect of the present invention, described keeper is live centre, forms interference fit and fix in the locating hole that the afterbody that the head of described live centre is inserted into described centring sleeve is offered.
Offer columniform centre bore in described centring sleeve, the two ends of described centre bore are connected with the head of locating hole and the afterbody of axis hole of feeling relieved respectively, described centre bore madial wall is formed with internal thread, thus is convenient to centring sleeve and live centre to dismantle.
Preferably, the cone angle of described centering axis hole is 60 °.
According to another aspect of the present invention, described keeper is claw, and described claw is clamped in outside described centring sleeve and fixes.
Compared with prior art, the invention has the advantages that: by arranging centring sleeve, with the chamfering Cone fit of the taper hole in centring sleeve and shaft-like workpiece, thus eliminate the processing of shaft workpiece center hole, and the making of centring sleeve is simple, taper seat location highly versatile, applied widely, simplify procedure of processing; And the location clamping good rigidity between taper seat, feel relieved reliable and stable, bearing capacity is large.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of adjective-centre structure of the present invention first embodiment;
Fig. 2 is the decomposition texture schematic diagram of the adjective-centre structure of Fig. 1;
Fig. 3 is the sectional view of the adjective-centre structure of Fig. 1;
Fig. 4 is the schematic diagram of adjective-centre structure of the present invention second embodiment;
Fig. 5 is the decomposition texture schematic diagram of the adjective-centre structure of Fig. 4;
Fig. 6 is the sectional view of the adjective-centre structure of Fig. 4.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment one
See Fig. 1 ~ Fig. 3, a kind of shaft-like workpiece adjective-centre structure, comprise live centre 1 and the centring sleeve 2 of coaxial setting, centring sleeve 2 is installed in the head of live centre 1, the head of live centre 1 comprises columniform Part I 11 and the conical Part II 12 before being located at Part I 11, and the head of live centre 1 is inserted in centring sleeve 2 fixing.
Offer locating hole 21 in the afterbody of centring sleeve 2, the shape and size of locating hole 21 and the head adaptation of live centre 1 form interference fit, thus make centring sleeve 2 can be fixed on the head of live centre 1.Offer columniform centre bore 22 before locating hole 21, the head of the Part II 12 of live centre 1 is inserted in centre bore 22, and centre bore 22 madial wall is formed with internal thread 221, is convenient to centring sleeve 2 and pulls down from the head of live centre 1.
Centering axis hole 23 is offered in the head of centring sleeve 2, the afterbody of centering axis hole 23 is connected with the head of centre bore 22 and diameter is identical, centering axis hole 23 is taper hole, the locating surface 24 that the madial wall formation of namely feeling relieved axis hole 23 is tilted, the diameter of centering axis hole 23 head is greater than the diameter of centering axis hole 23 afterbody, preferably, the cone angle of centering axis hole 23 is 60 °.
And conventional shaft-like workpiece 3, its end is formed with chamfering circular cone 31, and the effect of usual this chamfering circular cone 31 is mainly in order to remove burr, passivation sharp edge, prevent from striking hair and being convenient to assembling.The shape and size of locating surface 24 are made into the chamfering circular cone 31 of shaft-like workpiece to be processed 3 adaptive, chamfering circular cone 31 is made to be inserted into after in centering axis hole 23 thus, the taper seat of circular cone chamfering 31 clamps with the locating surface 24 of centering axis hole 23, need to ensure that the axial distance between the taper seat of circular cone chamfering 31 and the tail end of centering axis hole 23 is little as much as possible simultaneously, centering precision can be improved like this, rigidity that shaft-like workpiece 3 clamps by centring sleeve 2 and stability.
Embodiment two
See Fig. 4 ~ 6, in the present embodiment, be provided with centre bore 22 ' and centering axis hole 23 in centring sleeve 2 ', compared to embodiment one, save internal thread in centre bore 22 ', all the other structures are identical with embodiment one.Centring sleeve 2 ' external application claw 4 grips, and centering axis hole 23 is identical with embodiment one with the cooperation of shaft-like workpiece 3.
Due to the locating surface 24 of axis hole 23 of feeling relieved and the diameter of the diameter at the conical surface contact place of circular cone chamfering 31 much larger than centre bore 22, therefore, as long as the face contact of two contacts is good, and suitably increase the size of circular cone chamfering 31, reduce the tapering of centering axis hole 23, just be enough to transmit the torque for finish turning, the trouble of installing heart carrier can also be saved like this.
Claims (5)
1. a shaft-like workpiece adjective-centre structure, it is characterized in that: comprise centring sleeve (2) and the keeper of centring sleeve (2) being located that arrange coaxial with described centring sleeve (2), the head of described centring sleeve (2) offers centering axis hole (23), described centering axis hole (23) is for diameter is from the head of centring sleeve (2) to the diminishing taper hole of caudal directions of centring sleeve (2), thus make the locating surface (24) that the madial wall formation of feeling relieved axis hole (23) is tilted, the taper seat of the circular cone chamfering (31) of described locating surface (24) and shaft-like workpiece to be processed (3) is adaptive thus shaft-like workpiece (3) is felt relieved and clamped.
2. shaft-like workpiece adjective-centre structure as claimed in claim 1, it is characterized in that: described keeper is live centre (1), form interference fit in the locating hole (21) that the afterbody that the head of described live centre (1) is inserted into described centring sleeve (2) is offered and fix.
3. shaft-like workpiece adjective-centre structure as claimed in claim 2, it is characterized in that: in described centring sleeve (2), offer columniform centre bore (22), the two ends of described centre bore (22) are connected with the head of locating hole (21) and the afterbody of axis hole (23) of feeling relieved respectively, described centre bore (22) madial wall are formed with internal thread (221).
4. the shaft-like workpiece adjective-centre structure according to any one of claims 1 to 3, is characterized in that: the cone angle of described centering axis hole (23) is 60 °.
5. shaft-like workpiece adjective-centre structure as claimed in claim 1, is characterized in that: described keeper is claw (4), and described claw (4) is clamped in described centring sleeve (2) outside and fixes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410676028.7A CN104439307A (en) | 2014-11-21 | 2014-11-21 | Shaft workpiece centering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410676028.7A CN104439307A (en) | 2014-11-21 | 2014-11-21 | Shaft workpiece centering structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104439307A true CN104439307A (en) | 2015-03-25 |
Family
ID=52886494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410676028.7A Pending CN104439307A (en) | 2014-11-21 | 2014-11-21 | Shaft workpiece centering structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104439307A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105269346A (en) * | 2015-11-16 | 2016-01-27 | 山西平阳重工机械有限责任公司 | Rapid centering device for end faces of cylindrical shaft parts |
| CN112146341A (en) * | 2019-06-27 | 2020-12-29 | 博西华电器（江苏）有限公司 | Drawer assembly and household appliance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB936325A (en) * | 1962-03-23 | 1963-09-11 | Laval Steam Turbine Co | Improvements in or relating to method for positioning a workpiece in a machine |
| US4702132A (en) * | 1986-03-25 | 1987-10-27 | Grosse Hillman R | Centering fixture for wood turning lathe |
| CN201124310Y (en) * | 2007-12-23 | 2008-10-01 | 亓幸生 | Clamp for drilling pump spindle centre bore |
| CN201677061U (en) * | 2010-01-20 | 2010-12-22 | 江西铜业股份有限公司 | Assembled center hole drilling tool |
| CN202097409U (en) * | 2011-04-29 | 2012-01-04 | 常州南车铁马科技实业有限公司 | No-stop self-centering clamping chunk used for processing slender shaft part |
-
2014
- 2014-11-21 CN CN201410676028.7A patent/CN104439307A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB936325A (en) * | 1962-03-23 | 1963-09-11 | Laval Steam Turbine Co | Improvements in or relating to method for positioning a workpiece in a machine |
| US4702132A (en) * | 1986-03-25 | 1987-10-27 | Grosse Hillman R | Centering fixture for wood turning lathe |
| CN201124310Y (en) * | 2007-12-23 | 2008-10-01 | 亓幸生 | Clamp for drilling pump spindle centre bore |
| CN201677061U (en) * | 2010-01-20 | 2010-12-22 | 江西铜业股份有限公司 | Assembled center hole drilling tool |
| CN202097409U (en) * | 2011-04-29 | 2012-01-04 | 常州南车铁马科技实业有限公司 | No-stop self-centering clamping chunk used for processing slender shaft part |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105269346A (en) * | 2015-11-16 | 2016-01-27 | 山西平阳重工机械有限责任公司 | Rapid centering device for end faces of cylindrical shaft parts |
| CN105269346B (en) * | 2015-11-16 | 2017-05-03 | 山西平阳重工机械有限责任公司 | Rapid centering device for end faces of cylindrical shaft parts |
| CN112146341A (en) * | 2019-06-27 | 2020-12-29 | 博西华电器（江苏）有限公司 | Drawer assembly and household appliance |
| CN112146341B (en) * | 2019-06-27 | 2024-03-08 | 博西华电器（江苏）有限公司 | Drawer assembly and household appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |
|
| RJ01 | Rejection of invention patent application after publication |