CN208743709U - A kind of main shaft of numerical control machine tool - Google Patents
A kind of main shaft of numerical control machine tool Download PDFInfo
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- CN208743709U CN208743709U CN201821212952.XU CN201821212952U CN208743709U CN 208743709 U CN208743709 U CN 208743709U CN 201821212952 U CN201821212952 U CN 201821212952U CN 208743709 U CN208743709 U CN 208743709U
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- main shaft
- spacer
- ball bearing
- sleeve
- shaft body
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Abstract
The utility model discloses a kind of main shaft of numerical control machine tool, including main shaft body, sleeve and connector, the sleeve is sheathed on main shaft body, described connector one end connects with main shaft body one end, main shaft body one end is sequentially arranged with the first thrust ring, balance set, driving wheel and rear spacer, wherein described rear spacer one end offsets with sleeve one end, the first centripetal angular contact ball bearing is sequentially arranged in cavity between the main shaft body and sleeve, first spacer, second centripetal angular contact ball bearing, second spacer, retaining ring, long spacer, 4th centripetal angular contact ball bearing, third spacer, the centripetal angular contact ball bearing of third, deep groove ball bearing and flange ring, wherein flange ring inner end and sleeve offset far from rear spacer end, cavity is reserved between second spacer and retaining ring, high-precision by two groups of preloading is centripetal Angular contact ball bearing support, guarantees its stationarity to run at high speed, and structure is simple, convenient for operation.
Description
Technical field
The utility model belongs to numerical control machine tool technique field, and in particular to a kind of main shaft of numerical control machine tool.
Background technique
Lathe is the equipment for mainly carrying out turnery processing with workpiece of the lathe tool to rotation.Drill bit also can be used on lathe, expand
Hole drill, reamer, screw tap, screw die and checkering tool etc. are processed accordingly.Lathe be mainly used for process axis, disk, set and other
Workpiece with rotary surface is that most wide a kind of equipment is used in machine-building and repair factory.With China's machine-building
The high speed development of industry increases various lathe demands, and traditional mechanical transmission-type lathe headstock, which relies primarily on, needs machinery to subtract
Speed and mechanical speed change, not only structure is complicated, and precision and revolving speed are lower.However as electric drive technology rapid development and
It is gradually improved, the mechanical structure of High Speed NC Machine Tools main transmission is greatly simplified, substantially eliminates belt wheel biography
Dynamic and gear drive, not only simplifies structure, and the revolving speed and precision of machine tool chief axis greatly improved.
Currently, machine tool chief axis is directly driven by built-in electric motor, so that the length of Machine Tool Main Drive chain substantially shortens, substantially
On realize " Zero-drive Chain " of lathe.For the working performance of High Speed NC Machine Tools, it is dependent firstly on the performance of high-speed main spindle, number
Control high-speed main shaft of machine tool unit directly affects the precision, stability and application range of system of processing, power performance and stability
High-speed machining is played a key role, still, current machine tool chief axis still remain structure is more complicated, transmission efficiency compared with
Low defect and deficiency.
Utility model content
The utility model solves the deficiencies in the prior art, provides a kind of main shaft of numerical control machine tool, by two groups of preloading
Centripetal angular contact ball bearing support in high precision, guarantees its stationarity to run at high speed, and structure is simple, convenient for operation.
The technical scheme adopted by the utility model is a kind of main shaft of numerical control machine tool, including main shaft body, sleeve and company
Connector, the sleeve are sheathed on main shaft body, and described connector one end connects with main shaft body one end, and main shaft body one end is suitable
It is secondary to be arranged with the first thrust ring, balance set, driving wheel and rear spacer, wherein spacer one end offsets with sleeve one end after described,
Sequentially be arranged in cavity between the main shaft body and sleeve the first centripetal angular contact ball bearing, the first spacer, second to
Heart angular contact ball bearing, the second spacer, retaining ring, long spacer, the 4th centripetal angular contact ball bearing, third spacer, the centripetal angle of third
Contact ball bearing, deep groove ball bearing and flange ring, wherein flange ring inner end and sleeve offset far from rear spacer end, and described
It is reserved with cavity between two spacers and retaining ring, and is reserved with cavity between the retaining ring and long spacer outer wall and sleeve.
Preferably, the driving wheel is belt pulley.
It is furthermore preferred that being provided with rear cover on the outside of spacer after described, the rear cover is bolted on sleeve.
Further more there is choosing, the driving wheel is connected by key with main shaft body.
Compared to the prior art, the utility model has the advantages that a kind of main shaft of numerical control machine tool, including main shaft sheet
Body, sleeve and connector are connected by driving wheel with main motor, provide the power of main shaft body operating, main shaft body is by pre-
The centripetal angular contact ball bearing of the first of application of load, the second centripetal angular contact ball bearing, the centripetal angular contact ball bearing of third and the 4th
Centripetal angular contact ball bearing support, guarantees its stationarity to run at high speed, using independent main axle structure, greatlies simplify main shaft knot
Structure is conducive to processing and assembly, improves the processing efficiency of numerically-controlled machine tool, reduces main shaft failure rate.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of main shaft of numerical control machine tool, refering to fig. 1, including main shaft body 1, sleeve 2 and connector 12,2 sets of the sleeve
On main shaft body 1, described 12 one end of connector connects with 1 one end of main shaft body, and 1 one end of main shaft body is sequentially arranged with
One thrust ring 9, balance set 8, driving wheel 7 and rear spacer 3, wherein 3 one end of spacer offsets with 2 one end of sleeve after described, it is described
Sequentially be arranged in cavity between main shaft body 1 and sleeve 2 the first centripetal angular contact ball bearing 4, the first spacer 6, second to
Heart angular contact ball bearing 5, the second spacer 10, retaining ring 18, long spacer 17, the 4th centripetal angular contact ball bearing 15, third spacer 16,
The centripetal angular contact ball bearing 14 of third, deep groove ball bearing 13 and flange ring 11, wherein 11 inner end of flange ring and sleeve 2 are far from after
3 end of spacer offsets, and cavity, and the retaining ring 18 and long 17 outer wall of spacer are reserved between second spacer 10 and retaining ring 18
Cavity is reserved between sleeve 2, main shaft body 1 is by the first centripetal angular contact ball bearing 4 of preloading, the second centripetal corner connection
It touches the centripetal angular contact ball bearing 14 of ball bearing 5, third and the 4th centripetal angular contact ball bearing 15 supports, guarantee what it ran at high speed
Stationarity greatly simplifies main axle structure using independent main axle structure, is conducive to processing and assembly, improves the processing of numerically-controlled machine tool
Efficiency reduces main shaft failure rate.The driving wheel 7 is belt pulley, the power of the operating of main shaft body 1 is provided, by timing belt pulley
Band driving encoder, realizes the Rotating speed measring of main shaft body 1.Rear cover 19 is provided with after described on the outside of spacer 3, the rear cover 19 is logical
It crosses and is bolted on sleeve 2.The driving wheel 7 is connected by key with main shaft body 1.
After spindle mounted is got well, main shaft body 1 is directly driven by exchange main shaft frequency conversion (servo) motor by timing belt pulley
It is dynamic, by the first centripetal angular contact ball bearing 4, the second centripetal angular contact ball bearing 5, the centripetal angular contact ball axis of third of preloading
14 and the 4th centripetal angular contact ball bearing support 15 are held, guarantees its stationarity to run at high speed, is encoded by synchronous belt wheel drive
Device realizes speed of mainshaft detection, and package unit structure is simple, and convenient for operation, stability is good.
Above-described embodiment, the only preferred embodiment of the utility model not are used to limit the implementation model of the utility model
It encloses, therefore all equivalent variationss done with content described in the utility model claims, the utility model right should all be included in and wanted
Within the scope of asking.
Claims (4)
1. a kind of main shaft of numerical control machine tool, including main shaft body (1), sleeve (2) and connector (12), the sleeve (2) are arranged
In on main shaft body (1), described connector (12) one end connects with main shaft body (1) one end, which is characterized in that main shaft body
(1) one end is sequentially arranged with the first thrust ring (9), balance set (8), driving wheel (7) and rear spacer (3), wherein after described every
Set (3) one end offsets with sleeve (2) one end, is sequentially arranged with first in the cavity between the main shaft body (1) and sleeve (2)
Centripetal angular contact ball bearing (4), the first spacer (6), the second centripetal angular contact ball bearing (5), the second spacer (10), retaining ring
(18), long spacer (17), the 4th centripetal angular contact ball bearing (15), third spacer (16), the centripetal angular contact ball bearing of third
(14), deep groove ball bearing (13) and flange ring (11), wherein flange ring (11) inner end and sleeve (2) are held far from rear spacer (3)
Portion offsets, and cavity is reserved between second spacer (10) and retaining ring (18), and the retaining ring (18) and long spacer (17) are outside
Cavity is reserved between wall and sleeve (2).
2. main shaft of numerical control machine tool as described in claim 1, which is characterized in that the driving wheel (7) is belt pulley.
3. main shaft of numerical control machine tool as claimed in claim 2, which is characterized in that be provided with rear cover on the outside of spacer (3) after described
(19), the rear cover (19) is bolted on sleeve (2).
4. main shaft of numerical control machine tool as claimed in claim 3, which is characterized in that the driving wheel (7) passes through with main shaft body (1)
Key connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821212952.XU CN208743709U (en) | 2018-07-27 | 2018-07-27 | A kind of main shaft of numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821212952.XU CN208743709U (en) | 2018-07-27 | 2018-07-27 | A kind of main shaft of numerical control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208743709U true CN208743709U (en) | 2019-04-16 |
Family
ID=66058679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821212952.XU Active CN208743709U (en) | 2018-07-27 | 2018-07-27 | A kind of main shaft of numerical control machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208743709U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064386A (en) * | 2020-08-28 | 2020-12-11 | 湖北三江航天江北机械工程有限公司 | Double-twisting machine rotating shaft system device, double-twisting machine with same and machining and assembling method of double-twisting machine rotating shaft system device |
| CN114131504A (en) * | 2021-12-31 | 2022-03-04 | 广东凌丰五金装备科技股份有限公司 | Main shaft structure with dustproof function |
-
2018
- 2018-07-27 CN CN201821212952.XU patent/CN208743709U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064386A (en) * | 2020-08-28 | 2020-12-11 | 湖北三江航天江北机械工程有限公司 | Double-twisting machine rotating shaft system device, double-twisting machine with same and machining and assembling method of double-twisting machine rotating shaft system device |
| CN114131504A (en) * | 2021-12-31 | 2022-03-04 | 广东凌丰五金装备科技股份有限公司 | Main shaft structure with dustproof function |
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