CN203712483U - Precision spindle structure of ceramic ferrule bore grinding machine - Google Patents
Precision spindle structure of ceramic ferrule bore grinding machine Download PDFInfo
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- CN203712483U CN203712483U CN201420027516.0U CN201420027516U CN203712483U CN 203712483 U CN203712483 U CN 203712483U CN 201420027516 U CN201420027516 U CN 201420027516U CN 203712483 U CN203712483 U CN 203712483U
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- main shaft
- bearing
- spindle
- angular contact
- contact ball
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Abstract
The utility model relates to a precision spindle structure of a ceramic ferrule bore grinding machine. The precision spindle structure of the ceramic ferrule bore grinding machine is designed to solve the technical problems of poor stability and precision structural design of existing similar products. The spindle structure comprises a spindle, a sleeve, a bearing bush and a spindle support which are sequentially arranged in a sleeve mode from inside to outside. The key points are that the spindle is a stepped shaft; both ends of the spindle are provided with a right-screwing lock nut and a left-screwing lock nut; a small pulley is arranged on one side of the left-screwing lock nut; the spindle is of a hollow structure; ceramic ferrules are sequentially arranged in a center hole of the spindle; a bore grinding steel wire sequentially penetrates the left-screwing lock nut, the ceramic ferrule bores in the spindle and the right-screwing lock nut; a connected oil line is arranged between the sleeve, the bearing bush and the spindle support; the small pulley is driven by a belt to rotate to further drive the spindle to synchronously rotate so as to match with the grinding of the bore grinding steel wire in the ceramic ferrule bore. The precision spindle structure of the ceramic ferrule bore grinding machine can be used as a spindle for the grinding and machining of the fiber ceramic ferrule bore.
Description
Technical field
The utility model 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, also very high to the plant equipment requirement of processing, need to endoporus, carry out Precision Machining 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 by filling the abrasive wheel of lapping liquid, through straining pulley and reel, join, 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 purpose of this utility model is that a kind of ceramic core internal hole grinder accurate main shaft structure is provided to this area, makes its stability that solves existing like product, technical problem that precision structural design is not good enough.The utility model is achieved through the following technical solutions.
A ceramic core internal hole grinder accurate main shaft structure, this main axle structure comprises main shaft, spindle bearing, bearing holder (housing, cover), sleeve, and described main shaft, sleeve, bearing holder (housing, cover), spindle bearing be 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, 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 grinds steel wire and passes successively 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, 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, by each parts, drive endoporus grinding steel wire motion and main shaft to rotate, 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.
The utility model feature 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; Employing is adjusted bearing clearance by sleeve, and guarantees the machining accuracy of bearing holder (housing, cover), and 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 utility model, 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 utility model 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 be fit from inside to outside successively, and 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 grinds steel wire and passes successively endoporus and the dextrorotation locking nut 1 of left-handed locking nut 13, main shaft 18 interior ceramic insertion cores, 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 grinds steel wire and passes successively 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 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 steel wire in the grinding of 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) be fit from inside to outside successively, and 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 |
|---|---|---|---|
| CN201420027516.0U CN203712483U (en) | 2014-01-16 | 2014-01-16 | Precision spindle structure of ceramic ferrule bore grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420027516.0U CN203712483U (en) | 2014-01-16 | 2014-01-16 | Precision spindle structure of ceramic ferrule bore grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203712483U true CN203712483U (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420027516.0U Withdrawn - After Issue CN203712483U (en) | 2014-01-16 | 2014-01-16 | Precision spindle structure of ceramic ferrule bore grinding machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN203712483U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103802017A (en) * | 2014-01-16 | 2014-05-21 | 宁波宁创自动化设备有限公司 | Ceramic inserting core inner-hole grinding miller precise main shaft structure |
| CN104400617A (en) * | 2014-10-27 | 2015-03-11 | 沈阳黎明航空发动机(集团)有限责任公司 | High-precision long hole directional lapping tool and grinding method |
| CN109623530A (en) * | 2018-11-29 | 2019-04-16 | 广州市昊志机电股份有限公司 | A kind of horizontal type double-side grinding machine spindle |
| CN111515417A (en) * | 2020-04-30 | 2020-08-11 | 南京众得利自动化机械有限公司 | Built-in main shaft structure capable of adjusting bearing clearance |
-
2014
- 2014-01-16 CN CN201420027516.0U patent/CN203712483U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103802017A (en) * | 2014-01-16 | 2014-05-21 | 宁波宁创自动化设备有限公司 | Ceramic inserting core inner-hole grinding miller precise main shaft structure |
| CN103802017B (en) * | 2014-01-16 | 2015-12-30 | 宁波宁创自动化设备有限公司 | A kind of ceramic core internal hole grinder accurate main shaft structure |
| CN104400617A (en) * | 2014-10-27 | 2015-03-11 | 沈阳黎明航空发动机(集团)有限责任公司 | High-precision long hole directional lapping tool and grinding method |
| CN109623530A (en) * | 2018-11-29 | 2019-04-16 | 广州市昊志机电股份有限公司 | A kind of horizontal type double-side grinding machine spindle |
| CN111515417A (en) * | 2020-04-30 | 2020-08-11 | 南京众得利自动化机械有限公司 | Built-in main shaft structure capable of adjusting bearing clearance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140716 Effective date of abandoning: 20151230 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |