CN107234475B - It is machined accurate hard turning bearing outer ring special fixture - Google Patents
It is machined accurate hard turning bearing outer ring special fixture Download PDFInfo
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- CN107234475B CN107234475B CN201710681440.1A CN201710681440A CN107234475B CN 107234475 B CN107234475 B CN 107234475B CN 201710681440 A CN201710681440 A CN 201710681440A CN 107234475 B CN107234475 B CN 107234475B
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- Prior art keywords
- pedestal
- outer ring
- inner conical
- bearing outer
- ontology
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
Abstract
The present invention relates to a kind of accurate hard turning bearing outer ring special fixtures of machining, including pedestal, it is telescopically connected to bar, external conical sleeve, inner conical drogue component, the inner conical drogue component is made of inner conical drogue ontology, multiple quadrant blocks, gag lever post, top plate, and the small one end of the inner conical drogue ontology diameter is fixedly connected with pedestal；Centre bore is provided in the other end of inner conical drogue ontology, the quadrant block is fixedly connected on inner conical drogue ontology end face, and the surrounding along centre bore is distributed；Gag lever post is fixed in the centre bore, the end of the gag lever post is fixed with top plate；The external conical sleeve is sleeved on the big one end of inner conical drogue module diameter, and is connected between external conical sleeve and pedestal by being telescopically connected to bar.The step of the configuration of the present invention is simple, versatile, the service life is long, and bearing outer ring in clamping process will not be deformed, eliminate deformed adjusting, it is ensured that the accuracy of bearing outer ring precision.
Description
Technical field
A kind of a kind of fixture when being processed the present invention relates to fixed device, especially bearing outer ring, specifically one
Kind is machined accurate hard turning bearing outer ring special fixture.
Background technique
Bearing outer ring is the important component of bearing, and the rapid development and production level recently as economy are gradually
It improves, the precision of mechanical equipment is also higher and higher, and bearing directly affects the matter of a whole set of mechanical equipment as an important component
Amount, and bearing outer ring directly affects the quality of bearing as the important component of bearing.
It is well known that the requirement on machining accuracy of precision bearing is high, while bearing outer ring belongs to thin-walled base part, Er Qiecai
Material particularity, the at present processing method of precision bearing outer ring generally use grinding, but this processing method have the disadvantage that can not
Overcome: (1) grinding can generate high temperature, change the metallographic structure on bearing machining surface, influence the design attributes of bearing and make
Use the service life；(2) residual stress that processing generates influences dimensional accuracy；(3) process flow steps are more, and processing efficiency is low.
Relative to grinding mode, also one is hard turning technologies for the processing method of processing bearing outer ring at present, firmly
Turning technology is to be processed on high rigidity, high precision machine tool, using PCBN, diamond, ceramic material cutter suitable
Under parameter selection, the surface quality processed is equal to the bearing outer ring that even higher than grinding method processes, and hard turning side
Formula can obtain more uniform metallographic structure state and deeper residual compressive stress state, therefore hard turning processing method can take
For the conventional machining process of current precision bearing, but hard turning processing method processing efficiency is relatively low, when hard turning need by
Bearing outer ring blank is fixed, and when blank bearing outer ring is worked into certain precision, the wall thickness of outer ring can be thinning, if externally
Circle is further processed, and is very easy to cause race deformation, is influenced the precision of bearing outer ring.In the prior art, hard turning is processed
When bearing outer ring, have to the fixing means of bearing outer ring: 1. are fixed using scroll chuck, this fixed form is local pressure, dress
The deformation of outer ring can be directly resulted in after folder, when processing carries out turning on the blank deformed, and the lathe tool of simultaneous processing is produced
Raw cutting force also results in the deformation of part itself, and under remaining on board when lathe, measurement circularity, size etc. are all qualified, but
After unclamping scroll chuck, bearing outer ring can deform at once；2, electromagnetism fixture rail is sucked outside blank bearing to be processed using electromagnet
One end face of circle carries out turning inner hole processing, although can solve problem on deformation in this way, uses this fixture, in order to
Stabilization when turning is enough kept, needs great adsorption capacity, it is another to will lead to part after completing the process release for this adsorption capacity
The deformation in a direction causes the underproof situation of end face plane degree.3, lasso inner hole fixture, using with part to be processed size phase
The cast iron mould principle of adaptation, entangles bearing outer ring and fixes.But poor effect, source of error occur is, the wall of workpiece blank is thin,
Be easy stress deformation, if clamping point is not overlapped with the anchor point of workpiece, the workpiece of completion of processing after clamping force removal because
The effect of process internal stress caused by the clamping of workpiece, workpiece will generate elastic deformation, cause clamping force removal front and back
Size is inconsistent.
Therefore, those skilled in the art needs to develop a kind of new construction fixture that suitable hard turning processing technology uses, phase
For the prior art, processing rear axle bearing outer-ring internal diameter, circularity, the bounce of internal diameter circle, the processing of axial dimension essence can be improved
Degree.
Summary of the invention
The object of the present invention is to provide a kind of accurate hard turning bearing outer ring special fixture of machining, which can consolidate
Surely bearing outer ring blank is lived, and not will cause finished product deformation, it is ensured that the final product quality and precision of bearing outer ring.
In order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of accurate hard turning bearing outer ring special fixture of machining, including pedestal, be telescopically connected to bar, be external conical sleeve, interior
Taper sleeve component, the inner conical drogue component are made of inner conical drogue ontology, multiple quadrant blocks, gag lever post, top plate, the inner conical drogue
The small one end of ontology diameter is fixedly connected with pedestal；Centre bore is provided in the other end of inner conical drogue ontology, the sector is sliding
Block is fixedly connected on inner conical drogue ontology end face, and the surrounding along centre bore is distributed；Gag lever post, institute are fixed in the centre bore
The end for the gag lever post stated is fixed with top plate；The external conical sleeve is sleeved on the big one end of inner conical drogue module diameter, and external conical sleeve
It is connected between pedestal by being telescopically connected to bar.
Preferably, the interior vertebra set ontology includes pedestal confined planes, pedestal stationary plane, external conical sleeve sliding surface, cone
Shape face, the diameter of the pedestal confined planes are less than the diameter of pedestal stationary plane, and the pedestal stationary plane diameter is less than outer cone
The diameter of sliding surface is covered, the diameter of the external conical sleeve sliding surface is less than the cone bottom diameter of tapered surface, the pedestal confined planes
On be provided with annular groove, be provided with limit plate in annular groove；The cross-sectional shape of the pedestal is T-shaped, and middle part
It is provided with through-hole, pedestal is set with pedestal confined planes, on pedestal stationary plane, and is bolted on limit plate；Described is outer
The cross-sectional shape of tapered sleeve is rectangle, and external conical sleeve one end is round center hole, and the other end is conical central hole, and round center hole
Hole depth be less than or equal to external conical sleeve sliding surface length one third.
Further, it is provided with the first spline on the pedestal stationary plane, is correspondingly arranged on the inner wall of the pedestal
There is the first spline, the first spline is matched with the first spline, and the second spline, institute are provided on the external conical sleeve sliding surface
The second spline, second spline and the second spline phase are correspondingly arranged on the round center hole side wall for the external conical sleeve stated
Cooperation.
Preferably, peripherally disposed on the inner conical drogue ontology end face have dovetail groove, the sector is sliding
Dovetail is provided on the end face of the small one end of block radius, the quadrant block is plugged on inner cone by dovetail and dovetail groove
It covers on ontology end face.
Preferably, the inner conical drogue component further includes spring, the outer surface of the quadrant block is circumferentially set
It is equipped with multi-layer groove, the groove on multiple sliding blocks is combined into circular groove, and the spring pocket is in circular groove.
Cylinder is provided with preferably, being telescopically connected in bar.
Preferably, the gag lever post is air cylinder structure.
Preferably, the quantity of quadrant block is 6-8.
The beneficial effects of the present invention are:
1, the configuration of the present invention is simple, versatile, the service life is long, and bearing outer ring in clamping process will not generate change
Shape, the step of eliminating deformed adjusting, it is ensured that the accuracy of bearing outer ring precision.
2, the present invention adds the structure of spring to clamp bearing ring using multiple quadrant blocks, and such staff installs bearing
When lasso, quadrant block can clamp bearing ring, and subsequent external conical sleeve is facilitated to be inserted in.
3, in the present invention, cylinder and top plate in setting in inner conical drogue ontology, when such staff installs bearing ring,
Top plate can play the role of limiting for bearing ring, facilitate installation, prevent bearing ring dress oblique.
4, for the present invention by the way of the clamping of this conical surface, structure is simple, and can guarantee that quadrant block clamps bearing holder (housing, cover)
The accuracy of position when circle.
5, quadrant block of the present invention is connect by dovetail configuration with inner conical drogue ontology, and under the action of external conical sleeve, sector is sliding
Block can be slided in inner conical drogue end face, and when external conical sleeve clamps quadrant block, quadrant block and bearing top circle are face contact always,
Therefore deformation when bearing ring is clamped can be effectively prevented.Work as completion of processing, after quadrant block unclamps bearing ring, bearing holder (housing, cover)
Circle internal diameter, deviation from circular from, interior radial run-out, axial dimensional errors can guarantee in range.Due to clamping bearing holder (housing, cover)
After circle, bearing face does not stress, so axial dimensional errors also can guarantee in the range of work, end face is not in asking for deformation
Topic.
6, in addition, external conical sleeve, pedestal pass through spline and connect with inner conical drogue ontology in the present invention, it can be ensured that transmitting is steady
Property, and the accuracy of positioning.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is planar structure schematic diagram of the invention；
Fig. 2 is the schematic diagram of the section structure of A-A in Fig. 1；
Fig. 3 is the schematic diagram of the section structure of inner conical drogue component 4 in the present invention；
Fig. 4 is the schematic perspective view of inner conical drogue component 4 in the present invention；
Fig. 5 is the schematic diagram of the section structure of inner conical drogue ontology 41 in the present invention；
Fig. 6 is the schematic perspective view of inner conical drogue ontology 41 in the present invention；
Fig. 7 is the schematic diagram of the section structure of pedestal 1 in the present invention；
Fig. 8 is the side structure signal of pedestal 1 in the present invention；
Fig. 9 is the schematic diagram of the section structure of external conical sleeve 3 in the present invention；
Figure 10 is the schematic perspective view of external conical sleeve 3 in the present invention；
Figure 11 is 42 planar structure schematic diagram of quadrant block in the present invention；
Figure 12 is the schematic perspective view of quadrant block 42 in the present invention；In figure:
1-pedestal；11-through-holes；12-the first spline；2-are telescopically connected to bar；3-external conical sleeves；31-circular centrals
Hole；311-the second spline；32-conical central holes；4-inner conical drogue components；41-inner conical drogue ontologies；The limit of 411-pedestals
Face；4111-annular grooves；412-pedestal stationary planes；4121-the first spline；413-external conical sleeve sliding surfaces；4131-the second
Spline；414-tapered surfaces；4141-dovetail grooves；42-quadrant blocks；421-dovetails；422-grooves；43-gag lever posts；
44-top plates；45-springs；46-centre bores；5-limit plates；6-bearing outer rings.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carry out it is detailed, clear,
It is fully described by, it is clear that described embodiment is only a part of the embodiments of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under that premise of not paying creative labor
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the accurate hard turning bearing outer ring special fixture of a kind of machining, including pedestal
1, it is telescopically connected to bar 2, external conical sleeve 3, inner conical drogue component 4, the inner conical drogue component includes inner conical drogue ontology 41, multiple fan-shaped cunnings
Block 42, gag lever post 43, top plate 44, the small one end of 41 diameter of inner conical drogue ontology are fixedly connected with pedestal；Inner conical drogue ontology 41
The other end in be provided with centre bore 46, the quadrant block 42 is fixedly connected on 41 end face of inner conical drogue ontology, along center
The surrounding in hole 46 is distributed；Gag lever post 43 is fixed in the centre bore 46, the end of the gag lever post 43 is fixed with top plate
44, the external conical sleeve 3 is sleeved on the big one end of 4 diameter of inner conical drogue component, and is connected between external conical sleeve 3 and pedestal 1 by flexible
Extension bar 2 is connected.
As shown in figs. 4 through 10, interior vertebra set ontology 41 includes pedestal confined planes 411, pedestal stationary plane 412, external conical sleeve
Sliding surface 413, tapered surface 414, the diameter of the pedestal confined planes 411 are less than the diameter of pedestal stationary plane 412, the bottom
Seat 412 diameter of stationary plane is less than the diameter of external conical sleeve sliding surface 413, and the diameter of the external conical sleeve sliding surface 413 is less than taper
The cone bottom diameter in face 414 is provided with annular groove 4111 on the pedestal confined planes 411, is provided in annular groove 4111
Limit plate 5；The cross-sectional shape of the pedestal 1 is T-shaped, and middle part is provided with through-hole 11, and pedestal 1 is set with pedestal confined planes
411, it on pedestal stationary plane 412, and is bolted on limit plate 5；The cross-sectional shape of the external conical sleeve 3 is square
Shape, 3 one end of external conical sleeve be round center hole 31, the other end be conical central hole 32, and the hole depth of round center hole 31 be less than or
Equal to the one third of the length of external conical sleeve sliding surface 413；The first spline 4121 is provided on the pedestal stationary plane 412,
The first spline 12 is correspondingly arranged on the inner wall of the pedestal 1, the first spline 4121 is matched with the first spline 12, institute
It is provided with the second spline 4131 on the external conical sleeve sliding surface 413 stated, is corresponded on 31 side wall of round center hole of the external conical sleeve 3
It is provided with the second spline 311, second spline 4131 is matched with the second spline 311.
As shown in Fig. 4, Fig. 6, Figure 11, Figure 12, the outer surface of the quadrant block 42 is circumferentially arranged multi-layer groove
422, the groove on multiple sliding blocks is combined into circular groove, and the spring 45 is sleeved in circular groove；The inner conical drogue
It is peripherally disposed on 41 end face of ontology to have dovetail groove 4141, it is set on the end face of the small one end of 42 radius of quadrant block
It is equipped with dovetail 421, the quadrant block 42 is plugged on 41 end face of inner conical drogue ontology by dovetail 421 and dovetail groove 4141
On.
Further, more steady in order to slide external conical sleeve 3, it can will be telescopically connected in bar 2 and be provided with cylinder.
Further, in order to make the device be suitable for the bearing outer ring of different in width, gas can be set by gag lever post 43
Cylinder structure.
Further, the quantity of quadrant block 42 is 6-8.
Working principle:
In use, the present invention is mounted on lathe spindle, or it is directly installed on main shaft, then by bearing outer ring 6
It is put into the centre bore of the hollow cone of the composition of quadrant block 42, adjusts 43 extension elongation of gag lever post, make 43 top of gag lever post
Top plate 44 top arrive bearing outer ring 6 end face, at this point, quadrant block 42 under the action of spring 45 radial contraction clamp bearing holder (housing, cover)
Circle 6, under the promotion for being telescopically connected to bar 2, external conical sleeve 3 is locked tapered surface 414, and then clamps bearing outer ring 6, in this way when carrying out vehicle
When cutting processing, all it is forever face contact between 42 inner wall of bearing outer ring 6 and quadrant block, avoids the deformation of bearing outer ring 6.
Disclosed above is only specific implementation of the patent example, but this patent is not limited to this, for the general of this field
For logical technical staff, without departing from the principle of the present invention, the deformation made should be regarded as belonging to the scope of the present invention.
Claims (7)
1. a kind of accurate hard turning bearing outer ring special fixture of machining, which is characterized in that including pedestal (1), be telescopically connected to
Bar (2), external conical sleeve (3), inner conical drogue component (4), the inner conical drogue component is by inner conical drogue ontology (41), multiple quadrant blocks
(42), gag lever post (43), top plate (44), spring (45) composition, the small one end of inner conical drogue ontology (41) diameter and pedestal are solid
Fixed connection；It is provided in the other end of inner conical drogue ontology (41) centre bore (46), the quadrant block (42) is fixedly connected on
On inner conical drogue ontology (41) end face, the surrounding along centre bore (46) is distributed；Gag lever post is fixed in the centre bore (46)
(43), the end of the gag lever post (43) is fixed with top plate (44), and the outer surface of the quadrant block (42) is circumferentially set
It is equipped with multi-layer groove (422), the groove on multiple sliding blocks is combined into circular groove, and the spring (45) is sleeved on circular groove
It is interior；The external conical sleeve (3) is sleeved on the big one end of inner conical drogue component (4) diameter, and leads between external conical sleeve (3) and pedestal (1)
Flexible connecting rod (2) are crossed to be connected.
2. the accurate hard turning bearing outer ring special fixture of a kind of machining according to claim 1, which is characterized in that institute
The inner conical drogue ontology (41) stated includes pedestal confined planes (411), pedestal stationary plane (412), external conical sleeve sliding surface (413), taper
Face (414), the diameter of the pedestal confined planes (411) are less than the diameter of pedestal stationary plane (412), the pedestal stationary plane
(412) diameter is less than the diameter of external conical sleeve sliding surface (413), and the diameter of the external conical sleeve sliding surface (413) is less than tapered surface
(414) cone bottom diameter is provided with annular groove (4111) on the pedestal confined planes (411), in annular groove (4111)
It is provided with limit plate (5)；The cross-sectional shape of the pedestal (1) is T-shaped, and middle part is provided with through-hole (11), pedestal (1)
On suit pedestal confined planes (411), pedestal stationary plane (412), and it is bolted on limit plate (5)；The outer cone
The cross-sectional shape for covering (3) is rectangle, and external conical sleeve (3) one end is round center hole (31), and the other end is conical central hole (32),
And the hole depth of round center hole (31) is less than or equal to the one third of external conical sleeve sliding surface (413) length.
3. the accurate hard turning bearing outer ring special fixture of a kind of machining according to claim 2, which is characterized in that institute
It is provided with the first spline (4121) on the pedestal stationary plane (412) stated, is correspondingly arranged on first on the inner wall of the pedestal (1)
Spline (12), the first spline (4121) are matched with the first spline (12), are arranged on the external conical sleeve sliding surface (413)
Have the second spline (4131), is correspondingly arranged on the second spline on round center hole (31) side wall of the external conical sleeve (3)
(311), second spline (4131) is matched with the second spline (311).
4. the accurate hard turning bearing outer ring special fixture of a kind of machining according to claim 1, which is characterized in that institute
Peripherally disposed on inner conical drogue ontology (41) end face stated to have dovetail groove (4141), the quadrant block (42) radius is small
One end end face on be provided with dovetail (421), the quadrant block (42) pass through dovetail (421) and dovetail groove
(4141) it is plugged on inner conical drogue ontology (41) end face.
5. the accurate hard turning bearing outer ring special fixture of a kind of machining according to claim 1, which is characterized in that stretch
Cylinder is provided in contracting connecting rod (2).
6. the accurate hard turning bearing outer ring special fixture of a kind of machining according to claim 1, which is characterized in that institute
The gag lever post (43) stated is air cylinder structure.
7. the accurate hard turning bearing outer ring special fixture of a kind of machining according to claim 1, which is characterized in that fan
The quantity of shape sliding block (42) is 6-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710681440.1A CN107234475B (en) | 2017-08-10 | 2017-08-10 | It is machined accurate hard turning bearing outer ring special fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710681440.1A CN107234475B (en) | 2017-08-10 | 2017-08-10 | It is machined accurate hard turning bearing outer ring special fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107234475A CN107234475A (en) | 2017-10-10 |
| CN107234475B true CN107234475B (en) | 2019-07-26 |
Family
ID=59989868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710681440.1A Active CN107234475B (en) | 2017-08-10 | 2017-08-10 | It is machined accurate hard turning bearing outer ring special fixture |
Country Status (1)
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| CN (1) | CN107234475B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2633432C3 (en) * | 1976-07-24 | 1979-08-30 | Goetze Ag, 5093 Burscheid | Device for the central clamping of ring-shaped workpieces for internal machining |
| DE10059209A1 (en) * | 2000-11-29 | 2002-06-13 | Roehm Gmbh | Clamping device for a hollow shaft |
| CN201579420U (en) * | 2009-12-15 | 2010-09-15 | 柳州市数控机床研究所 | Automatic-positioning lathe main shaft structure |
| CN102554301A (en) * | 2012-02-12 | 2012-07-11 | 唐维刚 | Machine tool fixture for machining sleeve parts |
| CN203330753U (en) * | 2013-06-30 | 2013-12-11 | 河南广瑞汽车部件股份有限公司 | Elastic centering clamp of intermittent outer circle workpiece |
| CN203696478U (en) * | 2014-01-24 | 2014-07-09 | 上海工程技术大学 | Clamping and pushing-out structure of spring collet |
| CN104842268A (en) * | 2014-02-19 | 2015-08-19 | 成都云力机械有限公司 | Annular part grinding fixture |
| CN104493600A (en) * | 2014-12-26 | 2015-04-08 | 济南第一机床有限公司 | Special tooling for turning high-precision thin-wall cylinder liner bores |
-
2017
- 2017-08-10 CN CN201710681440.1A patent/CN107234475B/en active Active
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| CN107234475A (en) | 2017-10-10 |
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Effective date of registration: 20190701 Address after: 201800 Building No. 6485 Jiasong North Road, Anting Town, Jiading District, Shanghai Applicant after: Shanghai Haode Machinery Equipment Co., Ltd. Address before: 066000 No. 11500 Taihe Zhai Village, Niutouya Town, Funing County, Qinhuangdao City, Hebei Province Applicant before: Xu Liya |
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