CN201399720Y - CBN high-speed built-in grinding wheel rack of electric spindle - Google Patents
CBN high-speed built-in grinding wheel rack of electric spindle Download PDFInfo
- Publication number
- CN201399720Y CN201399720Y CN2009200636558U CN200920063655U CN201399720Y CN 201399720 Y CN201399720 Y CN 201399720Y CN 2009200636558 U CN2009200636558 U CN 2009200636558U CN 200920063655 U CN200920063655 U CN 200920063655U CN 201399720 Y CN201399720 Y CN 201399720Y
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- main shaft
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- grinding wheel
- hydrodynamic bearing
- cbn
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- 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
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Abstract
The utility model discloses a CBN high-speed built-in grinding wheel rack of an electric spindle. The grinding wheel rack comprises a box body (4) and a main shaft (3), wherein, the main shaft (3) ismounted on the box body (4) through the supporting of a front static hydrodynamic bearing (2) and a rear static hydrodynamic bearing (5); a CBN grinding wheel (1) and a dynamic balancing instrument (8) are arranged at the front end of the main shaft (3); a built-in frequency conversion motor rotor (7) is mounted at the rear end of the main shaft (3); and a built-in frequency conversion motor stator corresponding to the motor rotor (7) is mounted on the box body (4). The utility model has the advantages that the size of the high speed electric spindle grinding wheel rack is small; the appearance is attractive; no metal contact abrasion is generated between the main shaft (3) and the front static hydrodynamic bearing (2) as well as between the main shaft (3) and the rear static hydrodynamicbearing (5); the load-bearing capacity of the main shaft (3) is large; the high-speed operation is stable; the temperature rise is low; and the precision is high. Therefore, the utility model is suitable for precision high-speed grinding machines.
Description
Technical field
The utility model relates to a kind of built-in electric main shaft grinding carriage, the high speed embedded formula electricity of particularly a kind of C BN main shaft grinding carriage.
Background technology
Grinding carriage commonly used adopts ball bearing, external motor, and no dynamic balance instrument adopts plain wheel, and cutting speed has only 30-40m/s.Low precision, efficient is low.
The utility model content
Technical problem to be solved in the utility model provides a kind of cutting speed height, precision height, efficient height, bearing capacity is big, steady, the low CBN high speed grinding wheel frame of temperature rise run up.
In order to solve the problems of the technologies described above, the high speed embedded formula electricity of the CBN that the utility model provides main shaft grinding carriage, comprise casing and main shaft, described main shaft is installed on the described casing by preceding hydrostatic and hydrodynamic bearing and back hydrostatic and hydrodynamic bearing supporting, described front-end of spindle is equipped with CBN emery wheel and dynamic balance instrument, described rear-end of spindle is equipped with the built-in motor rotor, and the built-in variable-frequency motor stator corresponding with described built-in motor rotor is installed on described casing.
Adopt the high speed embedded formula electricity of the CBN main shaft grinding carriage of technique scheme, drive the built-in motor rotor, directly drive the main shaft under the forward and backward hydrostatic and hydrodynamic bearing supporting, drive the CBN emery wheel and rotate at a high speed by built-in variable-frequency motor stator.Main shaft provides pressure oil by hydraulic system, after pressure oil enters the annular gap flow controller of forward and backward hydrostatic and hydrodynamic bearing outer cylinder surface design from casing, radially four oil film wedge rings that enter forward and backward hydrostatic and hydrodynamic bearing through oil through (comprise 4 static pressure chambeies, 4 dynamic pressure cavity), the pressure oil of four quiet dynamic pressure oil pockets floats main shaft and main shaft is rotated, and oil return is flowed back to fuel tank through casing.Main shaft is in the fully liquid abrasion state with fluid bearing under 0 to 10000 commentaries on classics and heavy load.The utility model becomes one hydrostatic and hydrodynamic bearing, built-in variable-frequency motor, dynamic balance instrument, CBN emery wheel, and the configuration of CBN emery wheel makes the grinding cutting speed of grinding carriage bring up to 120m/s.
In sum, the high speed embedded formula electricity of the CBN that the utility model is a kind of cutting speed height, precision height, efficient is high main shaft grinding carriage.
Description of drawings
Fig. 1 is the high speed embedded formula electricity of a CBN main shaft grinding carriage structure chart;
Fig. 2 is the hydrostatic and hydrodynamic bearing cross-sectional view;
Fig. 3 is the hydrostatic and hydrodynamic bearing longitudinal section.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, Fig. 2 and Fig. 3, main shaft 3 is installed on the casing 4 by preceding hydrostatic and hydrodynamic bearing 2 and 5 supportings of back hydrostatic and hydrodynamic bearing, main shaft 3 front ends are equipped with CBN emery wheel 1 and dynamic balance instrument 8, main shaft 3 rear ends are equipped with built-in motor rotor 7, and the built-in variable-frequency motor stator 6 corresponding with built-in motor rotor 7 is installed on casing 4.
Referring to Fig. 1, Fig. 2 and Fig. 3, high speed embedded formula electricity main shaft grinding carriage drives built-in motor rotor 7 by built-in variable-frequency motor stator 6, and the main shaft 3 before directly driving under hydrostatic and hydrodynamic bearing 2 and 5 supportings of back hydrostatic and hydrodynamic bearing drives CBN emery wheel 1 rotation at a high speed.Main shaft 3 provides pressure oil by hydraulic system, behind the annular gap flow controller 10 that hydrostatic and hydrodynamic bearing 2 and back hydrostatic and hydrodynamic bearing 5 outer cylinder surfaces designed before pressure oil entered from casing, radially four oil film wedge rings of quiet dynamic pressure joint bearing (comprise 4 static pressure chambeies 12 before and after oil through 9 enters, 4 dynamic pressure cavity 11), the pressure oil of four quiet dynamic pressure oil pockets floats main shaft 3 and main shaft 3 is rotated, and oil return is flowed back to fuel tank through casing.Main shaft 3 is in the fully liquid abrasion state with preceding hydrostatic and hydrodynamic bearing 2 and back hydrostatic and hydrodynamic bearing 5 under 0 to 10000 commentaries on classics and heavy load.
The configuration of CBN emery wheel makes the grinding cutting speed of grinding carriage bring up to 120m/s.
The configuration of dynamic balance instrument 8 has improved the stationarity of grinding carriage running.
Built-in variable-frequency motor (rotor 7 and variable-frequency motor stator 6) makes grinding carriage possess stepless speed change function, has improved the scope of application of grinding carriage.
The utility model advantage is that its grinding carriage volume is little, good looking appearance, main shaft 3 with Front hydrostatic and hydrodynamic bearing 2 and the 5 no Metal Contact wearing and tearing of rear hydrostatic and hydrodynamic bearing. Main shaft 3 holds Loading capability is big, runs up steadily, and temperature rise is low, and the precision height is applicable to the high speed and precision mill Bed.
Claims (1)
1, the high speed embedded formula electricity of a kind of CBN main shaft grinding carriage, comprise casing (4) and main shaft (3), it is characterized in that: described main shaft (3) is installed on the described casing (4) by preceding hydrostatic and hydrodynamic bearing (2) and back hydrostatic and hydrodynamic bearing (5) supporting, described main shaft (3) front end is equipped with CBN emery wheel (1) and dynamic balance instrument (8), described main shaft (3) rear end is equipped with built-in motor rotor (7), and the built-in variable-frequency motor stator (6) corresponding with described built-in motor rotor (7) is installed on described casing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200636558U CN201399720Y (en) | 2009-03-17 | 2009-03-17 | CBN high-speed built-in grinding wheel rack of electric spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200636558U CN201399720Y (en) | 2009-03-17 | 2009-03-17 | CBN high-speed built-in grinding wheel rack of electric spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201399720Y true CN201399720Y (en) | 2010-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200636558U Expired - Lifetime CN201399720Y (en) | 2009-03-17 | 2009-03-17 | CBN high-speed built-in grinding wheel rack of electric spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201399720Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528577A (en) * | 2010-12-21 | 2012-07-04 | 上海奔腾电工有限公司 | Vertical continuous automatic grinding machine for blade |
| CN102729146A (en) * | 2012-06-29 | 2012-10-17 | 无锡机床股份有限公司 | Structure of grinding wheel electric spindle |
| CN102785137A (en) * | 2012-08-20 | 2012-11-21 | 无锡键禾数控机床有限公司 | Grinding wheel spindle structure for valve stem numerical-control centerless grinder |
| CN102837008A (en) * | 2012-07-27 | 2012-12-26 | 华中科技大学 | Built-in electric spindle capable of being detached and maintained conveniently |
| CN104084881A (en) * | 2014-06-27 | 2014-10-08 | 陆冬艳 | Grinding tool convenient to detach |
| CN105234812A (en) * | 2015-11-10 | 2016-01-13 | 安阳工学院 | Dual-drive centreless grinding wheel dynamic and static motorized spindle |
| CN105729303A (en) * | 2016-04-08 | 2016-07-06 | 无锡天任电子有限公司 | Driving device for swinging grinding head |
| CN109482911A (en) * | 2018-11-21 | 2019-03-19 | 上海机床厂有限公司 | High speed hydrostatic postposition type electric main shaft and dynamic balance method |
| WO2021244023A1 (en) * | 2020-06-05 | 2021-12-09 | 广州市昊志机电股份有限公司 | Air bearing spindle and machine tool |
-
2009
- 2009-03-17 CN CN2009200636558U patent/CN201399720Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528577A (en) * | 2010-12-21 | 2012-07-04 | 上海奔腾电工有限公司 | Vertical continuous automatic grinding machine for blade |
| CN102729146A (en) * | 2012-06-29 | 2012-10-17 | 无锡机床股份有限公司 | Structure of grinding wheel electric spindle |
| CN102837008A (en) * | 2012-07-27 | 2012-12-26 | 华中科技大学 | Built-in electric spindle capable of being detached and maintained conveniently |
| CN102837008B (en) * | 2012-07-27 | 2014-09-24 | 华中科技大学 | Built-in electric spindle capable of being detached and maintained conveniently |
| CN102785137A (en) * | 2012-08-20 | 2012-11-21 | 无锡键禾数控机床有限公司 | Grinding wheel spindle structure for valve stem numerical-control centerless grinder |
| CN104084881A (en) * | 2014-06-27 | 2014-10-08 | 陆冬艳 | Grinding tool convenient to detach |
| CN105234812A (en) * | 2015-11-10 | 2016-01-13 | 安阳工学院 | Dual-drive centreless grinding wheel dynamic and static motorized spindle |
| CN105729303A (en) * | 2016-04-08 | 2016-07-06 | 无锡天任电子有限公司 | Driving device for swinging grinding head |
| CN105729303B (en) * | 2016-04-08 | 2018-04-03 | 无锡天任电子有限公司 | Swing bistrique drive device |
| CN109482911A (en) * | 2018-11-21 | 2019-03-19 | 上海机床厂有限公司 | High speed hydrostatic postposition type electric main shaft and dynamic balance method |
| CN109482911B (en) * | 2018-11-21 | 2020-05-12 | 上海机床厂有限公司 | High-speed static pressure rear-mounted electric main shaft and dynamic balance method |
| WO2021244023A1 (en) * | 2020-06-05 | 2021-12-09 | 广州市昊志机电股份有限公司 | Air bearing spindle and machine tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410323 No. two, weft Road, Liuyang modern manufacturing industry base, Changsha, Hunan Patentee after: Yuhuan CNC Machine Tool Co., Ltd. Address before: 410323 No. two, weft Road, Liuyang modern manufacturing industry base, Changsha, Hunan Patentee before: Hunan Yuhuan Tongxin CNC Machine Tool Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 410323, Hunan, Changsha province Liuyang manufacturing base, latitude two road (Yongan town) Patentee after: Yuhuan CNC Machine Tool Co., Ltd. Address before: 410323 No. two, weft Road, Liuyang modern manufacturing industry base, Changsha, Hunan Patentee before: Yuhuan CNC Machine Tool Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100210 |
|
| CX01 | Expiry of patent term |