CN109531411A - A kind of high-power grinding spindle structure - Google Patents
A kind of high-power grinding spindle structure Download PDFInfo
- Publication number
- CN109531411A CN109531411A CN201811627913.0A CN201811627913A CN109531411A CN 109531411 A CN109531411 A CN 109531411A CN 201811627913 A CN201811627913 A CN 201811627913A CN 109531411 A CN109531411 A CN 109531411A
- Authority
- CN
- China
- Prior art keywords
- end bearing
- main shaft
- rear end
- grinding spindle
- spacer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007423 decrease Effects 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 125000006850 spacer group Chemical group 0.000 claims description 34
- 239000000243 solution Substances 0.000 description 10
- 238000009434 installation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Turning (AREA)
Abstract
The invention discloses a kind of high-power grinding spindle structures, including the preceding end bearing for having the cabinet of through-hole and being successively set in cabinet, spindle motor and rear end bearing, preceding end bearing, the excircle diameter of spindle motor and rear end bearing successively successively decreases, the lateral wall of preceding end bearing and the lateral wall of spindle motor contradict the inner sidewall of through-hole, the rear end of through-hole is equipped with cricoid choke, the lateral wall of rear end bearing contradicts the inner peripheral surface of choke, this high-power grinding spindle structure, due to preceding end bearing, the excircle diameter of spindle motor and rear end bearing successively successively decreases, therefore it can will be used to that preceding end bearing to be installed, the hole location of spindle motor and rear end bearing is set up directly on cabinet, the concentricity of through-hole on spindle motor and cabinet can be improved, make structure more compact simultaneously, and then improve the stability of spindle motor rotation, this Invention is used for machine tool structure field.
Description
Technical field
The present invention relates to machine tool structure fields, more particularly to a kind of high-power grinding spindle structure.
Background technique
Existing motor middle grinding spindle structure, i.e., before spindle motor being mounted on end bearing and rear end bearing it
Between, cabinet main body, spindle motor are generally included, since the outer peripheral diameter of electric machine main shaft is greater than preceding end bearing, in assembling,
At least one end of cabinet main body need to be made to biggish opening, be sealed again with sleeve after being packed into electric machine main shaft and bearing.Cause
This bearing for being used to support spindle motor is mounted in the sleeve of front and back.Such mounting means, front and back sleeve and cabinet main body need
Want separate machined, easily formation rigging error, and the length of main shaft is longer, rigidity is poor, therefore stability is not in rotation
Foot.
When machine tooling part, supporter of the grinding spindle as support part to be processed will if rigidity is insufficient
Cause the precision of part bad, each depth of cut can all be reduced, but in this way by increasing fraction defective generally in order to guarantee machining accuracy
It will affect processing beat, to influence yield.
Summary of the invention
High-power grinding spindle structure strong, simple for structure that the purpose of the present invention is to provide a kind of stability.
The technical solution used in the present invention is:
A kind of high-power grinding spindle structure, including the front end axis for having the cabinet of through-hole and being successively set in cabinet
It holds, spindle motor and rear end bearing, the excircle diameter of preceding end bearing, spindle motor and rear end bearing successively successively decrease, front end axis
The lateral wall of the lateral wall and spindle motor that hold contradicts the inner sidewall of through-hole, and the rear end of through-hole is equipped with cricoid choke, after
The lateral wall of end bearing contradicts the inner peripheral surface of choke.
It is further used as the improvement of technical solution of the present invention, and spindle motor includes main shaft, stator and rotor, rotor and master
Axis body is coaxial and is fixedly linked, and one end of stator contradicts the inner side end of choke.
It is further used as the improvement of technical solution of the present invention, and preceding spacer is also arranged on main shaft, and preceding spacer is located at front end
The inside of bearing is simultaneously inconsistent with the inner ring of preceding end bearing, and the outside of preceding end bearing is equipped with preceding spacer ring and preceding method for limit
Orchid, preceding spacer ring and the inner ring of preceding end bearing are inconsistent, and forward flange and the outer ring of preceding end bearing are inconsistent.
It is further used as the improvement of technical solution of the present invention, and rear spacer and rear flange, rear spacer are also arranged on main shaft
It is respectively positioned on the outside of rear end bearing with rear flange, the inner ring of rear spacer and rear end bearing is inconsistent, rear flange and rear end bearing
Outer ring is inconsistent.
It is further used as the improvement of technical solution of the present invention, and rear spacer ring is additionally provided on the inside of rear end bearing, rear end bearing
Side is fixedly connected with main shaft and rotor, the inner ring for the rear end bearing that the other side of rear spacer ring contradicts.
It is further used as the improvement of technical solution of the present invention, and the front end of main shaft is additionally provided with waterproof cover, before waterproof cover is located at
The outside of flange is equipped with discharge structure between waterproof cover and main shaft.
It is further used as the improvement of technical solution of the present invention, discharge structure include be set to it is several cricoid on main shaft
Rhone, waterproof cover are equipped with several drainage holes, and each rhone is at least connected to a drainage hole.
It is further used as the improvement of technical solution of the present invention, and reinforced seal ring is additionally provided between forward flange and main shaft.
It is further used as the improvement of technical solution of the present invention, and sheath is also arranged on main shaft, and sheath is located at rear flange
Outside is additionally provided with reinforced seal ring between sheath and main shaft.
It is further used as the improvement of technical solution of the present invention, and high-precision encoder is also arranged with outside main shaft.
Beneficial effects of the present invention: this high-power grinding spindle structure, due to preceding end bearing, spindle motor and rear end bearing
Excircle diameter successively successively decrease, therefore the hole location for being used to install preceding end bearing, spindle motor and rear end bearing can directly be set
It sets on cabinet, is packed into when installation one by one, and cabinet need to only process hole location in processing from the side of cabinet, can pass through one
Secondary clamping directly by hole location completion of processing, improves the machining accuracy of hole location, and main shaft is directly installed in cabinet, before can be improved
The concentricity of through-hole on end bearing, rear end bearing and cabinet improves to improve the concentricity of through-hole on spindle motor and cabinet
Rotation precision, while making structure more compact, and then improve the stability of spindle motor rotation.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is the external structure schematic diagram of the embodiment of the present invention；
Fig. 2 is the side view of the embodiment of the present invention；
Fig. 3 is the schematic diagram of internal structure of the embodiment of the present invention；
Fig. 4 is the structure enlarged view of the front end of the main shaft of the embodiment of the present invention；
Fig. 5 is the structure enlarged view of the rear end of the main shaft of the embodiment of the present invention.
Specific embodiment
Referring to Fig.1~Fig. 5, the present invention be a kind of high-power grinding spindle structure, including have the cabinet 1 of through-hole and according to
The secondary preceding end bearing 3 being arranged in cabinet 1, spindle motor 2 and rear end bearing 4, preceding end bearing 3, spindle motor 2 and rear end bearing
4 excircle diameter successively successively decreases, and the lateral wall of preceding end bearing 3 contradicts the inner sidewall of through-hole, and the rear end of through-hole is equipped with cricoid
Choke 12, the lateral wall of rear end bearing 4 contradict the inner peripheral surface of choke 12, preceding end bearing 3 and rear end bearing 4 and through-hole mistake
Cross connection.
Spindle motor 2 includes main shaft 22, stator 5 and rotor 51, and rotor is coaxial with main shaft 22 and is fixedly linked, stator
5 one end contradicts the inner side end of choke.
Specifically, choke 12 is mainly used for limiting the position of stator 5, guarantee the stability of stator 5.Due to preceding end bearing
3, the excircle diameter of spindle motor 2 and rear end bearing 4 successively successively decreases, therefore can will be used to install preceding end bearing 3, spindle motor
2 and the hole location of rear end bearing 4 be set up directly on cabinet 1, when installation, is packed into one by one.
Through-hole for end bearing 3, rear end bearing 4 and spindle motor 2 before installing can be complete in the clamped one time of cabinet 1
Portion's completion of processing, improves the concentricity of each position of through-hole, thus end bearing 3, rear end bearing 4, main shaft 22 before improving
With the concentricity of rotor 51, the stability of the rotation of main shaft 22 is improved.This structure is in machining box 1, i.e., by conventional case
Body 1 and the sleeve at its both ends are complex as a whole, and are eliminated the installation of the front and back sleeve at conventional 1 both ends of cabinet, are avoided forward and backward
The accumulated error that sleeve installation generates, improves the overall precision of main shaft, while having also increased dramatically the whole rigid of main axle structure
Property.
As a preferred embodiment of the present invention, spacer 6 before being also arranged on main shaft 22, preceding spacer 6 are located at front end axis
3 inside and inconsistent with the inner ring of preceding end bearing 3 is held, the inside of preceding spacer 6 is additionally provided with the round nut for locking, front end axis
The outside for holding 3 is equipped with the preceding spacer ring 7 and forward flange 8 for being used for limit, and preceding spacer ring 7 and the inner ring of preceding end bearing 3 are inconsistent, forward flange
8 is inconsistent with the outer ring of preceding end bearing 3.Specifically, preceding spacer 6 and preceding spacer ring 7 are used to limit the inner ring of preceding end bearing 3, and it is preceding
The outer ring of end bearing 3 before flange 8 is used to limit.Composition one preceding end bearing 3 between preceding spacer 6, preceding spacer ring 7 and forward flange 8
Positioning and clamping structure, ensure that the stability of preceding end bearing 3.
As a preferred embodiment of the present invention, rear spacer 9 and rear flange 10, rear spacer 9 are also arranged on main shaft 22
The outside of rear end bearing 4 is respectively positioned on rear flange 10, the outside of rear flange 10 is additionally provided with the round nut for locking, rear spacer 9
Inconsistent with the inner ring of rear end bearing 4, rear flange 10 and the outer ring of rear end bearing 4 are inconsistent.
As a preferred embodiment of the present invention, the inside of rear end bearing 4 is additionally provided with rear spacer ring 13, and the one of rear end bearing 4
Side is fixedly connected with main shaft 22 and rotor 51, the inner ring for the rear end bearing 4 that the other side of rear spacer ring 13 contradicts.
Specifically, rear spacer 9, rear flange 10 and rear spacer ring 13 constitute the positioning and clamping structure an of rear end bearing 4,
It ensure that the stability of preceding end bearing 3.Then spacer ring 13 also acts the effect for being fixedly connected with main shaft 22 with rotor 51.
As a preferred embodiment of the present invention, the front end of main shaft 22 is additionally provided with waterproof cover 14, before waterproof cover 14 is located at
The outside of flange 8 is equipped with discharge structure between waterproof cover 14 and main shaft 22.
As a preferred embodiment of the present invention, discharge structure includes several cricoid drainings being set on main shaft 22
Slot 21, waterproof cover 14 are equipped with several drainage holes 141, and each rhone 21 is at least connected to a drainage hole 141.
It in processing, needs to liquid such as workpiece injection coolants, may enter inside cabinet 1.Therefore it is provided with anti-
Water cover 14 and discharge structure.When liquid enters in waterproof cover 14, liquid can be imported in rhone 21, and when main shaft 22 rotates
It throws away outward under the influence of centrifugal force, and the drainage hole 141 by being arranged on waterproof cover 14 is discharged.
As a preferred embodiment of the present invention, reinforced seal ring 15 is additionally provided between forward flange 8 and main shaft 22.
As a preferred embodiment of the present invention, sheath 18 is also arranged on main shaft 22, sheath 18 is located at rear flange 10
Outside, be additionally provided with reinforced seal ring 15 between sheath 18 and main shaft 22, sheath 18 plays the function of dustproof and waterproof, and skeleton
Sealing ring 15 then plays sealing function.
As a preferred embodiment of the present invention, high-precision encoder 16 is also arranged with outside main shaft 22.
As a preferred embodiment of the present invention, grinding wheel amendment main shaft 17 and its driving device are also fixedly connected on cabinet 1.
Certainly, the invention is not limited to above embodiment, and those skilled in the art are without prejudice to originally
Equivalent deformation or replacement can be also made under the premise of spirit, these equivalent deformations or replacement are all contained in the application right
It is required that in limited range.
Claims (10)
1. a kind of high-power grinding spindle structure, it is characterised in that: including having the cabinet of through-hole (1) and being successively set on institute
State preceding end bearing (3), spindle motor (2) and the rear end bearing (4) in cabinet (1), the preceding end bearing (3), spindle motor (2)
Successively successively decrease with the excircle diameter of rear end bearing (4), the lateral wall of the preceding end bearing (3) and the outside of spindle motor (2)
Wall contradicts the inner sidewall of through-hole, and the rear end of the through-hole is equipped with cricoid choke (12), the outside of the rear end bearing (4)
Wall contradicts the inner peripheral surface of choke (12).
2. high-power grinding spindle structure according to claim 1, it is characterised in that: the spindle motor (2) includes master
Axis body (22), stator (5) and rotor (51), the rotor (51) is coaxial with main shaft (22) and is fixedly linked, the stator (5)
One end contradict the inner side end of the choke (12).
3. high-power grinding spindle structure according to claim 2, it is characterised in that: be also arranged on the main shaft (22)
Have preceding spacer (6), the preceding spacer (6) is located at the inside of the preceding end bearing (3) and offsets with the inner ring of preceding end bearing (3)
Touching, the outside of the preceding end bearing (3) are equipped with preceding spacer ring (7) and forward flange (8) for limit, and the preceding spacer ring (7) is with before
The inner ring of end bearing (3) is inconsistent, and the forward flange (8) and the outer ring of preceding end bearing (3) are inconsistent.
4. high-power grinding spindle structure according to claim 2, it is characterised in that: be also arranged on the main shaft (22)
There are rear spacer (9) and rear flange (10), the rear spacer (9) and rear flange (10) are respectively positioned on the outside of rear end bearing (4), described
Spacer (9) and the inner ring of rear end bearing (4) are inconsistent afterwards, and the rear flange (10) and the outer ring of rear end bearing (4) are inconsistent.
5. high-power grinding spindle structure according to claim 2, it is characterised in that: the inside of the rear end bearing (4)
Be additionally provided with rear spacer ring (13), the side of the rear end bearing (4) is fixedly connected with main shaft (22) and rotor (51), it is described after every
Enclose the inner ring of the rear end bearing (4) of the other side conflict of (13).
6. high-power grinding spindle structure according to claim 3, it is characterised in that: the front end of the main shaft (22) is also
Equipped with waterproof cover (14), the waterproof cover (14) is located at the outside of forward flange (8), the waterproof cover (14) and main shaft (22) it
Between be equipped with discharge structure.
7. high-power grinding spindle structure according to claim 6, it is characterised in that: the discharge structure includes being set to
Several cricoid rhones (21) on main shaft (22), the waterproof cover (14) are equipped with several drainage holes (141), each described
The rhone (21) is at least connected to a drainage hole (141).
8. high-power grinding spindle structure according to claim 3, it is characterised in that: the forward flange (8) and main shaft
(22) reinforced seal ring (15) are additionally provided between.
9. high-power grinding spindle structure according to claim 4, it is characterised in that: be also arranged on the main shaft (22)
Have sheath (18), the sheath (18) is located at the outside of rear flange (10), also sets between the sheath (18) and main shaft (22)
There are reinforced seal ring (15).
10. high-power grinding spindle structure according to claim 2, it is characterised in that: the main shaft (22) also covers outside
Equipped with high-precision encoder (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811627913.0A CN109531411B (en) | 2018-12-28 | 2018-12-28 | High-power grinding main shaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811627913.0A CN109531411B (en) | 2018-12-28 | 2018-12-28 | High-power grinding main shaft structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109531411A true CN109531411A (en) | 2019-03-29 |
| CN109531411B CN109531411B (en) | 2024-03-12 |
Family
ID=65857819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811627913.0A Active CN109531411B (en) | 2018-12-28 | 2018-12-28 | High-power grinding main shaft structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109531411B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142877A (en) * | 2019-05-21 | 2019-08-20 | 上海雄博精密仪器股份有限公司 | Small-sized main axle unit for optical mirror slip edge polisher |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060018580A1 (en) * | 2004-07-20 | 2006-01-26 | Davenport Machine, Inc. | High-precision spindle assembly for a davenport automatic screw machine |
| JP2011148015A (en) * | 2010-01-19 | 2011-08-04 | Nsk Ltd | Main spindle device and machine tool with the same |
| CN203599542U (en) * | 2013-11-20 | 2014-05-21 | 广州市昊志机电股份有限公司 | Shaft core assembly of high-speed electric ball spindle |
| CN105081383A (en) * | 2015-09-06 | 2015-11-25 | 烟台环球机床附件集团有限公司 | Power-off protection device for servo turret |
| CN205394123U (en) * | 2016-03-01 | 2016-07-27 | 宁波海天精工股份有限公司 | Crouch and add front -end of spindle protection machanism |
| CN106180764A (en) * | 2016-08-08 | 2016-12-07 | 纽威数控装备（苏州）有限公司 | A kind of vertical lathe spindle cellular construction |
| CN209394491U (en) * | 2018-12-28 | 2019-09-17 | 广州市威嘉机床有限公司 | A kind of high-power grinding spindle structure |
-
2018
- 2018-12-28 CN CN201811627913.0A patent/CN109531411B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060018580A1 (en) * | 2004-07-20 | 2006-01-26 | Davenport Machine, Inc. | High-precision spindle assembly for a davenport automatic screw machine |
| JP2011148015A (en) * | 2010-01-19 | 2011-08-04 | Nsk Ltd | Main spindle device and machine tool with the same |
| CN203599542U (en) * | 2013-11-20 | 2014-05-21 | 广州市昊志机电股份有限公司 | Shaft core assembly of high-speed electric ball spindle |
| CN105081383A (en) * | 2015-09-06 | 2015-11-25 | 烟台环球机床附件集团有限公司 | Power-off protection device for servo turret |
| CN205394123U (en) * | 2016-03-01 | 2016-07-27 | 宁波海天精工股份有限公司 | Crouch and add front -end of spindle protection machanism |
| CN106180764A (en) * | 2016-08-08 | 2016-12-07 | 纽威数控装备（苏州）有限公司 | A kind of vertical lathe spindle cellular construction |
| CN209394491U (en) * | 2018-12-28 | 2019-09-17 | 广州市威嘉机床有限公司 | A kind of high-power grinding spindle structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142877A (en) * | 2019-05-21 | 2019-08-20 | 上海雄博精密仪器股份有限公司 | Small-sized main axle unit for optical mirror slip edge polisher |
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| Publication number | Publication date |
|---|---|
| CN109531411B (en) | 2024-03-12 |
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