CN103802017A - Ceramic inserting core inner-hole grinding miller precise main shaft structure - Google Patents
Ceramic inserting core inner-hole grinding miller precise main shaft structure Download PDFInfo
- Publication number
- CN103802017A CN103802017A CN201410019755.6A CN201410019755A CN103802017A CN 103802017 A CN103802017 A CN 103802017A CN 201410019755 A CN201410019755 A CN 201410019755A CN 103802017 A CN103802017 A CN 103802017A
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- main shaft
- bearing
- angular contact
- contact ball
- sleeve
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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 invention relates to a ceramic inserting core inner-hole grinding miller precise main shaft structure. The main shaft structure is designed to resolve the technical problems that an existing like product is poor in stability and precision degree structural design. A main shaft, a sleeve, a bearing sleeve and a main shaft support of the main shaft structure are sequentially connected in a sleeved way from inside to outside. The main shaft structure is characterized in that the main shaft is a stepped shaft, the two ends of the main shaft are provided with a right-handed rotation locking nut and a left-handed rotation locking nut respectively, one side of the left-handed rotation locking nut is provided with a small belt wheel, the main shaft is of a hollow structure, ceramic inserting cores are sequentially distributed in a central hole of the main shaft, an inner-hole grinding steel line sequentially penetrates through the left-handed rotation locking nut, inner holes of the ceramic inserting cores in the main shaft and the right-handed rotation locking nut, and oil lines communicated with one another are arranged among the sleeve, the bearing sleeve and the main shaft support. The small belt wheel is driven to rotate through a belt, so that the main shaft is driven to rotate synchronously to be matched with the inner-hole grinding steel line for grinding the inner holes of the ceramic inserting cores. The ceramic inserting core inner-hole grinding miller precise main shaft structure is suitable for being used as the main shaft for grinding the inner holes of the optical fiber ceramic inserting cores.
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 inner hole requirement on machining accuracy of this type of optical fiber ceramic lock pin is very high, also very high to the plant equipment requirement of processing, need to carry out Precision Machining to endoporus by grinder, just can reach instructions for use.This type of inner hole machining equipment is as the ZL patent No. 200420035663.9 disclosing in Chinese patent literature, June 15 2005 Granted publication day, utility model title " lapping device of the ceramic core internal hole of optical fiber connector "; It is characterized in that of this lapping device: reel is installed on the mandrel of two gears separately; Wire penetrates ceramic insertion core, and is set in the fixture in the hollow spindle of electric rotating machine; It one join through straining pulley and reel 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 that realizes 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 existing this class formation, precision is not good enough, remains to be further improved.
Summary of the invention
The object of the invention is to provide to this area a kind of ceramic core internal hole grinder accurate main shaft structure, make its stability that solves 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, described main shaft and bearing holder (housing, cover) junction are provided with bearing; It is characterized in that: described main shaft is multidiameter, on the shaft shoulder of main shaft, be furnished with sleeve, described sleeve one 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 is arranged in order in the centre bore that is arranged at described main shaft, described endoporus grinding steel wire passes endoporus and the dextrorotation locking nut of ceramic insertion core in left-handed locking nut, described main shaft successively, 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, the oil nozzle oil circuit that is described both sides communicates 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 " 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 to grind steel wire motion and main shaft rotation by each parts, thereby realize the grinding moulding of ceramic core internal hole.Sleeve plays adjusts gap between 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, guarantees the effect of bearing holder (housing, cover) endoporus machining accuracy; The effect that provides and add the internal part lubricating oil such as corresponding bearing, spacer ring, sleeve is provided for L-type oil nozzle I, L-type oil nozzle II; Small pulley is by belt driven rotary, thus the rotation of drive main shaft; 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 accuracy require to reach more than 4 grades.Described " surface accuracy " refers to surface roughness, requires above-mentioned machined parameters to be conducive to the stable of the stable of bearing working and 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, adopt respectively large Back-to-back installation between angular contact ball bearing III and angular contact ball bearing IV.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 further stable.
Described left-handed fastening screw nut coordinates formation labyrinth seal with left-handed bearing (ball) cover, play 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 formation labyrinth seal with dextrorotation bearing (ball) cover, play 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 formation labyrinth seal, good airproof performance with left-handed bearing (ball) cover; Adopt and adjust bearing clearance by sleeve, and guarantee the machining accuracy of bearing holder (housing, cover), bearing holder (housing, cover) can process at one time, and has improved axiality and the operating efficiency at two end supports position.The main shaft that is 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 is provided with bearing with bearing holder (housing, cover) 7 junctions.Its concrete structure is: main shaft 18 is multidiameter, on the shaft shoulder of main shaft, be furnished with sleeve 6, sleeve 6 one sides are furnished with spacer ring 9, and spacer ring 9 opposite sides are furnished with angular contact ball bearing III 11, angular contact ball bearing IV 10, and sleeve 6 opposite sides are furnished with angular contact ball bearing I 5, angular contact ball bearing II 4; Angular contact ball bearing IV 10 opposite sides are furnished with left-handed fastening screw nut 14, and left-handed fastening screw nut 14 outer ring sleeves have left-handed bearing (ball) cover 15, and left-handed fastening screw nut 14 opposite sides are furnished with small pulley 12, and small pulley 12 is fixing with main shaft 18 by screw I 17; Angular contact ball bearing II 4 opposite sides are furnished with dextrorotation fastening screw nut 2, and dextrorotation fastening screw nut 2 outer ring sleeves have dextrorotation bearing (ball) cover 3; Main shaft 18 small pulley 12 ends are furnished with left-handed locking nut 13, and main shaft 18 other ends are furnished with dextrorotation locking nut 1; Main shaft 18 inside are hollow-core construction, ceramic insertion core is arranged in order in the centre bore that is arranged at main shaft 18, endoporus grinding steel wire passes endoporus and the dextrorotation locking nut 1 of left-handed locking nut 13, main shaft 18 interior ceramic insertion cores successively, bearing holder (housing, cover) 7 is fixing with sleeve 6 by screw II 16, spindle bearing 8 one sides are furnished with L-type oil nozzle I 19, L-type oil nozzle II 20, the oil nozzle oil circuit that is both sides communicates 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 " L " font.
Meanwhile, left-handed locking nut 13 described in said structure, dextrorotation locking nut 2 internal structures adopt taper to position main shaft 18, and are fixed on main shaft by lock-screw.Left-handed fastening screw nut 14 coordinates formation labyrinth seal with left-handed bearing (ball) cover 15; Dextrorotation fastening screw nut 2 coordinates formation labyrinth seal with dextrorotation bearing (ball) cover 3.
Its process principle is: open the dextrorotation locking nut of main shaft one side, ceramic insertion core is arranged in order the centre bore of putting into main shaft, closes the dextrorotation locking nut of main shaft, and dextrorotation locking nut is also fixed on main shaft by lock-screw; Then, endoporus grinding steel wire passes endoporus and the dextrorotation locking nut of ceramic insertion core in left-handed locking nut, described main shaft successively, start the motor of ceramic core internal hole grinder, endoporus grinds steel wire and rotates counterclockwise, pass gradually endoporus and the left-handed locking nut of ceramic insertion core in dextrorotation locking nut, described main shaft, and repeat endoporus and grind the motion that steel wire grinds at ceramic core internal hole.Meanwhile, small pulley is by belt driven rotary, thereby the rotation of drive spindle synchronous further coordinates endoporus to grind the grinding of steel wire at ceramic core internal hole.After ceramic insertion core is ground, motor stops, and opens dextrorotation locking nut, can obtain ground ceramic insertion core 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) is provided with bearing with bearing holder (housing, cover) (7) junction, it is characterized in that: described main shaft (18) is multidiameter, on the shaft shoulder of main shaft, be furnished with sleeve (6), described sleeve (6) one sides are 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 fixing 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, described ceramic insertion core is arranged in order in the centre bore that is arranged at described main shaft (18), described endoporus grinds steel wire successively through left-handed locking nut (13), the endoporus of the interior ceramic insertion core of described main shaft (18) and dextrorotation locking nut (1), described bearing holder (housing, cover) (7) is fixing by screw II (16) and sleeve (6), described spindle bearing (8) one sides are furnished with L-type oil nozzle I (19), L-type oil nozzle II (20), be that the oil nozzle oil circuit of described both sides is by described spindle bearing (8), bearing holder (housing, cover) (7), sleeve (6) and described spacer ring (9), the chamber at bearing place communicates, described oil nozzle oil circuit is all " 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) reaches 2 grades with sleeve (6) cooperation place surface accuracy, described main shaft (18) requires to reach more than 4 grades with 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 accuracy.
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 respectively large Back-to-back installation 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 formation labyrinth seal with left-handed bearing (ball) cover (15).
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 formation labyrinth seal with dextrorotation bearing (ball) cover (3).
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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN103802017A true CN103802017A (en) | 2014-05-21 |
| CN103802017B 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690640A (en) * | 2015-04-07 | 2015-06-10 | 邓玉平 | Grinding miller for inner holes of ceramic inserting core |
| CN107116405A (en) * | 2017-06-21 | 2017-09-01 | 苏州卡西德电机科技有限公司 | Clamping device, interior grinding motor and ceramic insertion core process 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690640A (en) * | 2015-04-07 | 2015-06-10 | 邓玉平 | Grinding miller for inner holes of ceramic inserting core |
| CN104690640B (en) * | 2015-04-07 | 2017-01-18 | 邓玉平 | Grinding miller for inner holes of ceramic inserting core |
| CN107116405A (en) * | 2017-06-21 | 2017-09-01 | 苏州卡西德电机科技有限公司 | Clamping device, interior grinding motor and ceramic insertion core process equipment |
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| Publication number | Publication date |
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| CN103802017B (en) | 2015-12-30 |
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