CN103802017B - A kind of ceramic core internal hole grinder accurate main shaft structure - Google Patents
A kind of ceramic core internal hole grinder accurate main shaft structure Download PDFInfo
- Publication number
- CN103802017B CN103802017B CN201410019755.6A CN201410019755A CN103802017B CN 103802017 B CN103802017 B CN 103802017B CN 201410019755 A CN201410019755 A CN 201410019755A CN 103802017 B CN103802017 B CN 103802017B
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- Prior art keywords
- main shaft
- bearing
- angular contact
- contact ball
- handed
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/02—Lapping machines or devices; Accessories designed for working surfaces of revolution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The present invention relates to a kind of ceramic core internal hole grinder accurate main shaft structure, is for the stability solving existing like product, technical problem that precision structural design is not good enough and designing.The main shaft of this main axle structure, sleeve, bearing holder (housing, cover), spindle bearing fit from inside to outside successively, its main points are described main shafts is multidiameter, main shaft two ends are respectively equipped with dextrorotation locking nut, left-handed locking nut, left-handed fastening screw nut side is furnished with small pulley, main shaft inside is hollow-core construction, described ceramic insertion core be arranged in order be arranged at described main shaft centre bore in, described endoporus grinding steel wire, successively through endoporus and the dextrorotation locking nut of ceramic insertion core in left-handed locking nut, described main shaft, is provided with the oil circuit of connection between sleeve, bearing holder (housing, cover), spindle bearing; Small pulley is rotated by belt drive, thus drives spindle synchronous to rotate, and coordinates endoporus grinding steel wire in the grinding of ceramic core internal hole further.Its main shaft being suitable as optical fiber ceramic lock pin endoporus attrition process uses.
Description
Technical field
The present invention relates to the machining spindle of optical fiber ceramic lock pin grinding machine, is a kind of ceramic core internal hole grinder accurate main shaft structure.
Technical background
Optical fiber ceramic lock pin is the high accuracy circular cylinder special cermacis element of precise centering in a kind of optical fiber connector plug, and there is a micropore at its center, and aperture, out of roundness error are 0.5 micron, for fixed fiber.The central bore requirement on machining accuracy of this type of optical fiber ceramic lock pin is very high, requires also very high, need to carry out Precision Machining by grinder to endoporus, just can reach instructions for use the plant equipment of processing.This type of inner hole machining equipment as the ZL patent No. 200420035663.9 disclosed in Chinese patent literature, authorized announcement date on June 15th, 2005, utility model title " lapping device of the ceramic core internal hole of optical fiber connector "; It is characterized in that of this lapping device: the mandrel of two gears installs reel separately; Wire penetrates ceramic insertion core, and is set in the fixture in the hollow spindle of electric rotating machine; It one connect with reel through straining pulley by filling the abrasive wheel of lapping liquid, other end is connected on reel through abrasive wheel and straining pulley equally.Above-mentioned lapping device is arranged at the attrition process realizing ceramic core internal hole in electric rotating machine hollow spindle in fixture by ceramic insertion core, in its electric rotating machine hollow spindle, clamp structure is fully not open.Meanwhile, the ceramic core internal hole grinder accurate main shaft structural stability of this class formation existing, precision is not good enough, remains to be further improved.
Summary of the invention
The object of the invention is to provide a kind of ceramic core internal hole grinder accurate main shaft structure to this area, make its stability solving existing like product, technical problem that precision structural design is not good enough.The present invention is achieved by the following technical solutions.
A kind of ceramic core internal hole grinder accurate main shaft structure, this main axle structure comprises main shaft, spindle bearing, bearing holder (housing, cover), sleeve, described main shaft, sleeve, bearing holder (housing, cover), spindle bearing fit from inside to outside successively, and described main shaft and bearing holder (housing, cover) junction are provided with bearing; It is characterized in that: described main shaft is multidiameter, the shaft shoulder of main shaft is furnished with sleeve, described sleeve side is furnished with spacer ring, and described spacer ring opposite side is furnished with angular contact ball bearing III, angular contact ball bearing IV, and described sleeve opposite side is furnished with angular contact ball bearing I, angular contact ball bearing II; Described angular contact ball bearing IV opposite side is furnished with left-handed fastening screw nut, and described left-handed fastening screw nut outer ring sleeve has left-handed bearing (ball) cover, and described left-handed fastening screw nut opposite side is furnished with small pulley, and described small pulley is fixed by screw I and main shaft; Described angular contact ball bearing II opposite side is furnished with dextrorotation fastening screw nut, and described dextrorotation fastening screw nut outer ring sleeve has dextrorotation bearing (ball) cover; Described main shaft small pulley end is furnished with left-handed locking nut, and the described main shaft other end is furnished with dextrorotation locking nut; Described main shaft inside is hollow-core construction, described ceramic insertion core be arranged in order be arranged at described main shaft centre bore in, described endoporus grinding steel wire is successively through endoporus and the dextrorotation locking nut of ceramic insertion core in left-handed locking nut, described main shaft, described bearing holder (housing, cover) is fixed by screw II and sleeve, described spindle bearing one side is furnished with L-type oil nozzle I, L-type oil nozzle II, namely the oil nozzle oil circuit of described both sides is communicated with the chamber at described spacer ring, bearing place by described spindle bearing, bearing holder (housing, cover), sleeve, and described oil nozzle oil circuit is all in " L " font.Described spindle bearing is fixedly installed on grinder, grinder comprises the parts such as support, buffer, cylinder, scale, sensor, driving wheel, reel, drive endoporus grinding steel wire motion and main shaft to rotate by each parts, thus the grinding realizing ceramic core internal hole is shaping.Sleeve plays gap between adjustment angular contact ball bearing I and angular contact ball bearing II, and gap between angular contact ball bearing III and angular contact ball bearing IV, ensures the effect of bearing holder (housing, cover) endoporus machining accuracy; L-type oil nozzle I, L-type oil nozzle II play the effect providing and add the internal part lubricating oil such as corresponding bearing, spacer ring, sleeve; Small pulley is rotated by belt drive, thus drives main shaft to rotate; Dextrorotation locking nut, left-handed locking nut are used for the encapsulation of ceramic insertion core in main shaft.
Described main shaft and sleeve cooperation place surface accuracy reach 2 grades, and described main shaft and angular contact ball bearing I, angular contact ball bearing II, angular contact ball bearing III, angular contact ball bearing IV contact-segment surface finish requirements reach more than 4 grades.Described " surface accuracy " refers to surface roughness, requires that above-mentioned machined parameters is conducive to stablizing of bearing working and stablizing of ceramic core internal hole processing.
Described left-handed locking nut, dextrorotation locking nut internal structure adopt taper to position main shaft, and are fixed on main shaft by lock-screw.
Between described angular contact ball bearing I and angular contact ball bearing II, between angular contact ball bearing III and angular contact ball bearing IV, adopt large Back-to-back installation respectively.Described " large Back-to-back installation " refers to the assembling mode that the cast face of bearing fits, and its structure makes the work of main shaft stablize further.
Described left-handed fastening screw nut coordinates with left-handed bearing (ball) cover and forms labyrinth seal, plays the effect of sealing main shaft left end, i.e. left-handed fastening screw nut formation sealing ring mutually nested with left-handed bearing (ball) cover.
Described dextrorotation fastening screw nut coordinates with dextrorotation bearing (ball) cover and forms labyrinth seal, plays the effect of sealing main shaft right-hand member, i.e. left-handed fastening screw nut formation sealing ring mutually nested with left-handed bearing (ball) cover.
Feature of the present invention is: angular contact ball bearing adopts large back-to-back mounting means, good rigidly, and heat sensitivity is little, is applicable to running up; Left-handed fastening screw nut coordinates with left-handed bearing (ball) cover and forms labyrinth seal, good airproof performance; Adopt and adjust bearing clearance by sleeve, and ensure the machining accuracy of bearing holder (housing, cover), bearing holder (housing, cover) can process at one time, and improves axiality and the operating efficiency of two ends support zone.The main shaft being suitable as optical fiber ceramic lock pin endoporus attrition process uses, ex hoc genus anne the improvement of product.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present invention, and in figure, A portion confines.
Fig. 2 is the A portion enlarged drawing of Fig. 1.
Figure number and title: 1, dextrorotation locking nut, 2, dextrorotation fastening screw nut, 3, dextrorotation bearing (ball) cover, 4, angular contact ball bearing II, 5, angular contact ball bearing I, 6, sleeve, 7, bearing holder (housing, cover), 8, spindle bearing, 9, spacer ring, 10, angular contact ball bearing IV, 11, angular contact ball bearing III, 12, small pulley, 13, left-handed locking nut, 14, left-handed fastening screw nut, 15, left-handed bearing (ball) cover, 16, screw II, 17, screw I, 18, main shaft, 19, L-type oil nozzle I, 20, L-type oil nozzle II.
specific implementation method
By reference to the accompanying drawings, structure of the present invention and process principle are further described.As shown in Figure 1 and Figure 2, the main shaft 18 of this main axle structure, sleeve 6, bearing holder (housing, cover) 7, spindle bearing 8 fit from inside to outside successively, main shaft 18 and bearing holder (housing, cover) 7 junction are provided with bearing.Its concrete structure is: main shaft 18 is multidiameter, the shaft shoulder of main shaft is furnished with sleeve 6, sleeve 6 side is furnished with spacer ring 9, and spacer ring 9 opposite side is furnished with angular contact ball bearing III 11, angular contact ball bearing IV 10, and sleeve 6 opposite side is furnished with angular contact ball bearing I 5, angular contact ball bearing II 4; Angular contact ball bearing IV 10 opposite side is furnished with left-handed fastening screw nut 14, and left-handed fastening screw nut 14 outer ring sleeve has left-handed bearing (ball) cover 15, and left-handed fastening screw nut 14 opposite side is furnished with small pulley 12, and small pulley 12 is fixed by screw I 17 and main shaft 18; Angular contact ball bearing II 4 opposite side is furnished with dextrorotation fastening screw nut 2, and dextrorotation fastening screw nut 2 outer ring sleeve has dextrorotation bearing (ball) cover 3; Main shaft 18 small pulley 12 end is furnished with left-handed locking nut 13, and main shaft 18 other end is furnished with dextrorotation locking nut 1; Main shaft 18 inside is hollow-core construction, ceramic insertion core be arranged in order be arranged at main shaft 18 centre bore in, endoporus grinding steel wire is successively through endoporus and the dextrorotation locking nut 1 of ceramic insertion core in left-handed locking nut 13, main shaft 18, bearing holder (housing, cover) 7 is fixed by screw II 16 and sleeve 6, spindle bearing 8 one side is furnished with L-type oil nozzle I 19, L-type oil nozzle II 20, namely the oil nozzle oil circuit of both sides is communicated with the chamber at spacer ring 9, bearing place by spindle bearing 8, bearing holder (housing, cover) 7, sleeve 6, and oil nozzle oil circuit is all in " L " font.
Meanwhile, left-handed locking nut 13 described in said structure, dextrorotation locking nut 2 internal structure adopt taper to position main shaft 18, and are fixed on main shaft by lock-screw.Left-handed fastening screw nut 14 coordinates with left-handed bearing (ball) cover 15 and forms labyrinth seal; Dextrorotation fastening screw nut 2 coordinates with dextrorotation bearing (ball) cover 3 and forms labyrinth seal.
Its process principle is: the dextrorotation locking nut opening main shaft side, and ceramic insertion core is arranged in order the centre bore putting into main shaft, and close the dextrorotation locking nut of main shaft, dextrorotation locking nut is also fixed on main shaft by lock-screw; Then, endoporus grinding steel wire is successively through endoporus and the dextrorotation locking nut of ceramic insertion core in left-handed locking nut, described main shaft, start the motor of ceramic core internal hole grinder, endoporus grinding steel wire rotates counterclockwise, gradually through dextrorotation locking nut, the endoporus of ceramic insertion core and left-handed locking nut in described main shaft, and repeat the motion that endoporus grinding steel wire grinds at ceramic core internal hole.Meanwhile, small pulley is rotated by belt drive, thus drives spindle synchronous to rotate, and coordinates endoporus grinding steel wire in the grinding of ceramic core internal hole further.After ceramic insertion core is ground, motor stops, and opens dextrorotation locking nut, can obtain ceramic insertion core ground in main shaft.
Claims (6)
1. a ceramic core internal hole grinder accurate main shaft structure, this main axle structure comprises main shaft (18), spindle bearing (8), bearing holder (housing, cover) (7), sleeve (6), described main shaft (18), sleeve (6), bearing holder (housing, cover) (7), spindle bearing (8) fit from inside to outside successively, described main shaft (18) and bearing holder (housing, cover) (7) junction are provided with bearing, it is characterized in that: described main shaft (18) is multidiameter, the shaft shoulder of main shaft is furnished with sleeve (6), described sleeve (6) side is furnished with spacer ring (9), described spacer ring (9) opposite side is furnished with angular contact ball bearing III (11), angular contact ball bearing IV (10), and described sleeve (6) opposite side is furnished with angular contact ball bearing I (5), angular contact ball bearing II (4), described angular contact ball bearing IV (10) opposite side is furnished with left-handed fastening screw nut (14), described left-handed fastening screw nut (14) outer ring sleeve has left-handed bearing (ball) cover (15), described left-handed fastening screw nut (14) opposite side is furnished with small pulley (12), and described small pulley (12) is fixed by screw I (17) and main shaft (18), described angular contact ball bearing II (4) opposite side is furnished with dextrorotation fastening screw nut (2), and described dextrorotation fastening screw nut (2) outer ring sleeve has dextrorotation bearing (ball) cover (3), described main shaft (18) small pulley (12) end is furnished with left-handed locking nut (13), and described main shaft (18) other end is furnished with dextrorotation locking nut (1), described main shaft (18) inside is hollow-core construction, ceramic insertion core be arranged in order be arranged at described main shaft (18) centre bore in, endoporus grinding steel wire is successively through left-handed locking nut (13), the endoporus of described main shaft (18) interior ceramic insertion core and dextrorotation locking nut (1), described bearing holder (housing, cover) (7) is fixed by screw II (16) and sleeve (6), described spindle bearing (8) side is furnished with L-type oil nozzle I (19), L-type oil nozzle II (20), i.e. described both sides L-type oil nozzle I (19) and L-type oil nozzle II (20)
oil circuitcommunicated with the chamber at described spacer ring (9), bearing place by described spindle bearing (8), bearing holder (housing, cover) (7), sleeve (6), described oil nozzle oil circuit is all in " L " font.
2. a kind of ceramic core internal hole grinder accurate main shaft structure according to claim 1, it is characterized in that: described main shaft (18) and sleeve (6) cooperation place surface accuracy reach 2 grades, described main shaft (18) and angular contact ball bearing I (5), angular contact ball bearing II (4), angular contact ball bearing III (11), angular contact ball bearing IV (10) contact-segment surface finish requirements reach more than 4 grades.
3. a kind of ceramic core internal hole grinder accurate main shaft structure according to claim 1, it is characterized in that: described left-handed locking nut (13), dextrorotation locking nut (1) internal structure adopt taper to position main shaft (18), and are fixed on main shaft by lock-screw.
4. a kind of ceramic core internal hole grinder accurate main shaft structure according to claim 1, is characterized in that: between described angular contact ball bearing I (5) and angular contact ball bearing II (4), adopt large Back-to-back installation respectively between angular contact ball bearing III (11) and angular contact ball bearing IV (10).
5. a kind of ceramic core internal hole grinder accurate main shaft structure according to claim 1, is characterized in that: described left-handed fastening screw nut (14) coordinates with left-handed bearing (ball) cover (15) and forms labyrinth seal.
6. a kind of ceramic core internal hole grinder accurate main shaft structure according to claim 1, is characterized in that: described dextrorotation fastening screw nut (2) coordinates with dextrorotation bearing (ball) cover (3) and forms labyrinth seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410019755.6A CN103802017B (en) | 2014-01-16 | 2014-01-16 | A kind of ceramic core internal hole grinder accurate main shaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410019755.6A CN103802017B (en) | 2014-01-16 | 2014-01-16 | A kind of ceramic core internal hole grinder accurate main shaft structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103802017A CN103802017A (en) | 2014-05-21 |
| CN103802017B true CN103802017B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410019755.6A Expired - Fee Related CN103802017B (en) | 2014-01-16 | 2014-01-16 | A kind of ceramic core internal hole grinder accurate main shaft structure |
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| CN (1) | CN103802017B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690640B (en) * | 2015-04-07 | 2017-01-18 | 邓玉平 | Grinding miller for inner holes of ceramic inserting core |
| CN107116405B (en) * | 2017-06-21 | 2023-07-14 | 苏州速科德电机科技有限公司 | Clamping device, internal grinding motor and ceramic ferrule processing equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2704445Y (en) * | 2004-04-20 | 2005-06-15 | 中南大学 | Grinder of ceramic core internal hole for light-guide fibre connector |
| JP2006154308A (en) * | 2004-11-29 | 2006-06-15 | Kyocera Corp | Optical communication ferrule and its machining method |
| CN101367196A (en) * | 2008-08-29 | 2009-02-18 | 无锡开源机床集团有限公司 | Modified grinding wheel head structure |
| CN102814728A (en) * | 2012-08-24 | 2012-12-12 | 深圳市翔通光电技术有限公司 | Inner bore lapping machine for ceramic bushing used for optical fiber ceramic inserted core metal assembly |
| CN103170905A (en) * | 2013-04-07 | 2013-06-26 | 成都金戈泰科技有限公司 | Automatic grinding device and grinding method of ceramic inserting core inner hole |
| CN203712483U (en) * | 2014-01-16 | 2014-07-16 | 宁波宁创自动化设备有限公司 | Precision spindle structure of ceramic ferrule bore grinding machine |
-
2014
- 2014-01-16 CN CN201410019755.6A patent/CN103802017B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2704445Y (en) * | 2004-04-20 | 2005-06-15 | 中南大学 | Grinder of ceramic core internal hole for light-guide fibre connector |
| JP2006154308A (en) * | 2004-11-29 | 2006-06-15 | Kyocera Corp | Optical communication ferrule and its machining method |
| CN101367196A (en) * | 2008-08-29 | 2009-02-18 | 无锡开源机床集团有限公司 | Modified grinding wheel head structure |
| CN102814728A (en) * | 2012-08-24 | 2012-12-12 | 深圳市翔通光电技术有限公司 | Inner bore lapping machine for ceramic bushing used for optical fiber ceramic inserted core metal assembly |
| CN103170905A (en) * | 2013-04-07 | 2013-06-26 | 成都金戈泰科技有限公司 | Automatic grinding device and grinding method of ceramic inserting core inner hole |
| CN203712483U (en) * | 2014-01-16 | 2014-07-16 | 宁波宁创自动化设备有限公司 | Precision spindle structure of ceramic ferrule bore grinding machine |
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| CN103802017A (en) | 2014-05-21 |
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Granted publication date: 20151230 Termination date: 20180116 |