CN116329585A - Motorized spindle and numerical control machine tool comprising motorized spindle - Google Patents
Motorized spindle and numerical control machine tool comprising motorized spindle Download PDFInfo
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- CN116329585A CN116329585A CN202310542259.8A CN202310542259A CN116329585A CN 116329585 A CN116329585 A CN 116329585A CN 202310542259 A CN202310542259 A CN 202310542259A CN 116329585 A CN116329585 A CN 116329585A
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- shell
- rotating shaft
- wall
- end cover
- housing
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- 238000001816 cooling Methods 0.000 claims abstract description 70
- 230000001681 protective effect Effects 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 35
- 238000013016 damping Methods 0.000 claims description 12
- 238000009423 ventilation Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 17
- 230000000712 assembly Effects 0.000 description 7
- 238000000429 assembly Methods 0.000 description 7
- 230000003139 buffering effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
- B23Q11/0039—Arrangements for preventing or isolating vibrations in parts of the machine by changing the natural frequency of the system or by continuously changing the frequency of the force which causes the vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
- B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention discloses an electric spindle and a numerical control machine tool comprising the same, which relate to the technical field of numerical control machine tools and comprise the following components: the device comprises a rotating shaft and a shell, wherein the shell is sleeved outside the rotating shaft, the shell and the rotating shaft are coaxially arranged, a first cooling component and a buffer component are arranged on the inner wall of the shell, one end, far away from the shell, of the buffer component is contacted with the rotating shaft, a plurality of buffer components are arranged along the axis of the shell in an annular array, and a second cooling component is arranged on the outer wall of the shell; the protective shell is sleeved outside the second cooling component; the front end cover and the rear end cover are respectively arranged at two ends of the shell, and the front end cover and the rear end cover are respectively connected with the rotating shaft and the shell in a rotating way through bearings. The invention improves the problem of low machining precision of the electric spindle caused by the self problem in the prior art to a certain extent through the combined action of the first cooling component, the buffer component and the second cooling component.
Description
Technical Field
The invention relates to the technical field of numerical control machine tools, in particular to an electric spindle and a numerical control machine tool comprising the same.
Background
At present, a numerical control lathe is one of widely used numerical control lathes, and is mainly used for cutting machining of inner and outer cylindrical surfaces of shaft parts or disc parts, inner and outer conical surfaces of any cone angle, complex rotation inner and outer curved surfaces, cylindrical threads, conical threads and the like, grooving, drilling, reaming, boring and the like can be performed, an electric spindle is a critical part of the numerical control lathe, the electric spindle realizes the integration of a motor and a lathe spindle, the numerical control lathe generates heat when the workpiece is machined, the rotation precision of the electric spindle determines the machining precision and the assembly precision of parts, and in the actual high-speed cutting machining process, the electric spindle generates larger radial vibration under the action of cutting load, so that the vibration deformation of a stator is caused, and the service life of the electric spindle and the machining quality of the workpiece are seriously influenced. In the related art, the electric spindle is cooled by a liquid cooling mode, but the effect is not obvious only by the liquid cooling mode, but also radial vibration still exists, and the processing quality of the numerical control machine tool is affected.
Disclosure of Invention
In view of the above, the present invention provides an electric spindle and a numerical control machine tool including the same, which aims to solve the problems in the above background art, so as to solve the problem of low machining precision caused by poor cooling effect and insignificant vibration reduction effect in the machining process of the electric spindle in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided an electric spindle, which adopts the following technical scheme:
an motorized spindle comprising:
a rotating shaft is arranged on the upper part of the rotating shaft,
the shell is sleeved outside the rotating shaft, the shell and the rotating shaft are coaxially arranged, a first cooling component and a buffer component are arranged on the inner wall of the shell, one end, far away from the shell, of the buffer component is in contact with the rotating shaft, a plurality of buffer components are arranged, the buffer components are distributed in an annular array along the axis of the shell, and a second cooling component is arranged on the outer wall of the shell;
the protective shell is sleeved outside the second cooling assembly;
the front end cover and the rear end cover are respectively arranged at two ends of the shell, and the front end cover and the rear end cover are respectively connected with the rotating shaft and the shell in a rotating way through bearings.
According to the electric spindle provided by the invention, the buffer assembly comprises the telescopic rod, the supporting plate and the spring, one end of the telescopic rod is fixedly connected with the inner wall of the shell, the other end of the telescopic rod is connected with the supporting plate, the spring is sleeved on the telescopic rod, one end of the spring is in contact with the inner wall of the shell, and the other end of the spring is in contact with the supporting plate.
According to the electric spindle provided by the invention, the buffer component is arranged at a position of the shell close to the front end cover and/or the shell close to the rear end cover.
According to the electric spindle provided by the invention, one side of the supporting plate, which is close to the rotating shaft, is an arc-shaped surface matched with the outer wall of the rotating shaft.
According to the electric spindle provided by the invention, the first cooling component comprises the air homogenizing component and the air duct penetrating through the protective shell and the shell in sequence, the air homogenizing component is provided with the ventilation cavity, the air duct is communicated with the ventilation cavity, the air homogenizing component is provided with the first air outlet, and the front end cover and/or the rear end cover is provided with the second air outlet.
According to the electric spindle provided by the invention, the second cooling component comprises a liquid cooling pipeline, the liquid cooling pipeline is wound on the outer wall of the shell, the protecting shell is provided with a liquid channel, and the liquid cooling pipeline is communicated with the liquid channel.
According to some embodiments of the invention, the second cooling component is a groove arranged on the outer wall of the shell, the protective shell is sleeved on the outer wall of the shell, the protective shell is connected with two ends of the shell in a sealing manner, the protective shell and the groove on the shell form a liquid cooling pipeline, the protective shell is provided with a liquid channel, and the liquid cooling pipeline is communicated with the liquid channel.
The electric spindle further comprises an axial vibration reduction assembly, wherein the axial vibration reduction assembly comprises a stop bearing, an axial vibration reduction spring and a limiting plate, the limiting plate is arranged on the inner wall of the shell, the stop bearing is arranged on the rotating shaft, the axial vibration reduction spring is sleeved on the rotating shaft, one end of the axial vibration reduction spring is in contact with the outer ring of the stop bearing, and the other end of the axial vibration reduction spring is in contact with the limiting plate.
According to the electric spindle provided by the invention, the axial vibration damping assembly is arranged between the first cooling assembly and the buffer assembly.
The second aspect of the invention provides a numerical control machine tool, which comprises a machine tool body and an electric spindle arranged on the machine tool body, wherein the electric spindle is the electric spindle.
Compared with the prior art, the invention discloses an electric spindle and a numerical control machine tool comprising the same, the first cooling component and the buffer component are arranged on the inner wall of the shell, the second cooling component is arranged on the outer wall of the shell in a combined mode, and the cooling components are respectively arranged on the inner side and the outer side of the shell, so that the cooling efficiency of the electric spindle can be improved, the problem of low machining precision caused by machining thermal deformation of the electric spindle is solved, and the problem of low machining precision caused by radial vibration of the electric spindle can be eliminated to a certain extent by the buffer component. Therefore, through the combination of the first cooling component, the buffer component and the second cooling component, the problem of low machining precision of the electric spindle caused by the self problem in the prior art is improved to a certain extent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an electric spindle provided by the invention.
Wherein: 1 is a rotating shaft; 2 is a shell; 3 is a protective shell; 4 is a front end cover; 5 is a rear end cover; 6 is a first cooling assembly; 61 is a wind equalizing piece; 62 is an air duct; 7 is a buffer component; 71 is a telescopic rod; 72 is a support plate; 73 is a spring; 8 is a second cooling assembly; 81 is a liquid cooling pipeline; 9 is a ventilation cavity; 10 is a first air outlet; 11 is a second air outlet; 12 is a liquid channel; 13 is an axial vibration damping assembly; 131 a positioning bearing; 132 is an axial damper spring; 133 is a limiting plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In one aspect, referring to fig. 1, an embodiment of the present invention discloses an electric spindle, including: the device comprises a rotating shaft 1, a shell 2, a protective shell 3, a front end cover 4 and a rear end cover 5.
The shell 2 is sleeved outside the rotating shaft 1, the shell 2 and the rotating shaft 1 are coaxially arranged, a first cooling component 6 and a buffer component 7 are arranged on the inner wall of the shell 2, one end, away from the shell 2, of the buffer component 7 is contacted with the rotating shaft 1, a plurality of buffer components 7 are arranged, the buffer components 7 are distributed in an annular array along the axis of the shell 2, and a second cooling component 8 is arranged on the outer wall of the shell 2; there is the clearance between casing 2 and the pivot 1, and first cooling module 6 and buffering subassembly 7 all set up in the clearance, and first cooling module 6 is used for cooling for having the space between casing 2 and the pivot 1, and buffering subassembly 7's setting can slow down the vibration of pivot 1 for solve the low problem of machining precision that the electricity main shaft brought because radial vibration.
The protective shell 3 is sleeved outside the second cooling component 8; the protecting shell 3 is coaxially arranged with the shell 2, in this embodiment, the protecting shell 3 and the shell 2 may be arranged in a form with a gap, or the protecting shell 3 may be directly arranged on the outer wall of the shell 2 through an interference fit.
The front end cover 4 and the rear end cover 5 are respectively arranged at two ends of the shell 2, and the front end cover 4 and the rear end cover 5 respectively rotationally connect the rotating shaft 1 with the shell 2 through bearings. The front end cover 4 and the rear end cover 5 are respectively and fixedly connected with the shell 2 through bolts, the front end cover 4 and the rear end cover 5 can also be fixedly connected with the end part of the protective shell 3 through bolts, the rotating shaft 1, the shell 2, the front end cover 4 and the rear end cover 5 form a cavity between the rotating shaft 1 and the shell 2, and the cavity is used for mounting some parts.
It should be noted that: through set up first cooling module 6 and buffering subassembly 7 at the inner wall of casing 2, combine and be provided with second cooling module 8 at the outer wall of casing 2, cool off the electric main shaft through the inside and outside at casing 2 respectively, and then can promote the cooling efficiency to the electric main shaft, solve the problem that machining precision is low that is brought by electric main shaft processing heat altered shape, the setting of buffering subassembly 7 can eliminate the problem that the machining precision is low that the electric main shaft brought because radial vibration to a certain extent. Therefore, through the combination of the first cooling component 6, the buffer component 7 and the second cooling component 8, the two components are matched with each other, so that the problem of low machining precision of the electric spindle caused by the self problem in the prior art is solved to a certain extent.
According to the electric spindle provided by the invention, the buffer assembly 7 comprises the telescopic rod 71, the supporting plate 72 and the spring 73, one end of the telescopic rod 71 is fixedly connected with the inner wall of the shell 2, the other end of the telescopic rod 71 is connected with the supporting plate 72, the spring 73 is sleeved on the telescopic rod 71, one end of the spring 73 is in contact with the inner wall of the shell 2, and the other end of the spring 73 is in contact with the supporting plate 72.
The telescopic rod 71 is an electric cylinder, a hydraulic cylinder, or an electric cylinder, and preferably, in this embodiment, the buffer assemblies 7 are disposed in six, and the six buffer assemblies 7 are disposed in an annular array along the axis of the housing 2, and in other embodiments, the number of the buffer assemblies 7 may be specifically set according to actual requirements, and the number of the buffer assemblies 7 is not specifically limited herein. The arrangement of the spring 73 can buffer the vibration of the rotating shaft 1 relative to the shell 2, so that the stability of the rotating process of the rotating shaft 1 is guaranteed, the radial vibration of the rotating shaft 1 is eliminated to a certain extent, and the machining precision of the electric spindle is improved.
According to the electric spindle provided by the invention, the buffer assembly 7 is arranged at a position of the shell 2 close to the front end cover 4 and/or a position of the shell 2 close to the rear end cover 5.
It should be noted that; when the buffer assemblies 7 are arranged in a group, the buffer assemblies 7 are provided with six telescopic rods 71, the six telescopic rods 71 are distributed in an annular array along the axial direction of the rotating shaft 1, and the buffer assemblies 7 can be arranged at any end of the shell 2, which is close to the front end cover 4 or the rear end cover 5, preferably at one end of the shell 2, which is close to the processing part, and the radial vibration of the rotating shaft 1 can be reduced to the greatest extent due to the arrangement of the amplitude angle of the rotating shaft 1, which is close to one end of the processing part; when the buffer components 7 are arranged in two groups, the two groups of buffer components 7 are respectively arranged at the end parts of the shell 2, which are close to the front end cover 4 and the rear end cover 5, so that the radial vibration of the rotating shaft 1 can be simultaneously buffered.
According to the electric spindle provided by the invention, one side of the supporting plate 72, which is close to the rotating shaft 1, is an arc-shaped surface matched with the outer wall of the rotating shaft 1. The supporting plate 72 with an arc surface is arranged, so that the contact area between the supporting plate 72 and the rotating shaft 1 can be increased, and in other embodiments, a buffer pad, preferably a hard rubber pad, can be arranged on one side, close to the rotating shaft 1, of the supporting plate 72.
According to the electric spindle provided by the invention, the first cooling component 6 comprises the air homogenizing component 61 and the air duct 62 penetrating through the protective shell 3 and the shell 2 in sequence, the air homogenizing component 61 is provided with the ventilation cavity 9, the air duct 62 is communicated with the ventilation cavity 9, the air homogenizing component 61 is provided with the first air outlet 10, and the front end cover 4 and/or the rear end cover 5 are provided with the second air outlet 11. In this embodiment, the air equalizing member 61 is preferably disposed at one end of the rotating shaft 1 near the rear end cover 5, and the front end cover 4 is provided with a second air outlet 11, where the second air outlet 11 can discharge the cool air blown out by the first air outlet 10. The second air outlet 11 may be disposed on the rear end cover 5, or the second air outlet 11 may be disposed on both the front end cover 4 and the rear end cover 5. That is, the first cooling unit 6 cools the inside of the housing 2 by air cooling.
According to the electric spindle provided by the invention, the second cooling component 8 comprises a liquid cooling pipeline 81, the liquid cooling pipeline 81 is wound on the outer wall of the shell 2, the protecting shell 3 is provided with a liquid channel 12, and the liquid cooling pipeline 81 is communicated with the liquid channel 12. The liquid cooling pipeline 81 is arranged on the outer wall of the shell 2 in a spiral winding mode, and the protective shell 3 and the liquid cooling pipeline 81 are in interference fit, so that the liquid cooling pipeline 81 is fixed between the shell 2 and the protective shell 3; the outer wall of the shell 2 can be provided with a spiral accommodating groove, the liquid cooling pipeline 81 is arranged in the spiral accommodating groove, and the protective shell 3 is fixed on the outer wall of the shell 2 in an interference fit mode after winding. That is, the second cooling unit 8 cools the outer wall of the housing 2 by liquid cooling.
According to other embodiments of the present invention, the second cooling component 8 is a groove arranged on the outer wall of the shell 2, the protecting shell 3 is sleeved on the outer wall of the shell 2, the protecting shell 3 is connected with two ends of the shell 2 in a sealing manner, the protecting shell 3 and the groove on the shell 2 form a liquid cooling pipeline 81, the protecting shell 3 is provided with a liquid channel 12, and the liquid cooling pipeline 81 is communicated with the liquid channel 12.
According to the electric spindle provided by the invention, the electric spindle further comprises an axial vibration damping assembly 13, the axial vibration damping assembly 13 comprises a stop bearing 131, an axial vibration damping spring 132 and a limiting plate 133, the limiting plate 133 is arranged on the inner wall of the shell 2, the stop bearing 131 is arranged on the rotating shaft 1, the axial vibration damping spring 132 is sleeved on the rotating shaft 1, one end of the axial vibration damping spring 132 is in contact with the outer ring of the stop bearing 131, and the other end of the axial vibration damping spring is in contact with the limiting plate 133.
The limiting plate 133 is preferably an annular limiting plate 133, a shaft shoulder is arranged on the rotating shaft 1, the stop bearing 131 is arranged at the shaft shoulder position of the rotating shaft 1, and the stop bearing 131 and the limiting plate 133 are used for axially fixing the axial vibration damping spring 132, so that the axial vibration of the rotating shaft 1 can be buffered, and the machining precision of the electric spindle is improved.
According to the present invention, an electric spindle is provided, with an axial damping assembly 13 arranged between the first cooling assembly 6 and the buffer assembly 7. Preferably, in this embodiment, the first cooling component 6 is provided with one, the buffer component 7 is provided with a group, the wind-equalizing member in the first cooling component 6 is disposed at one end of the rotating shaft 1 near the rear end cover 5, the buffer component 7 is disposed at one end of the housing 2 near the front end cover 4, and the axial vibration damping component 13 is disposed between the wind-equalizing member and the buffer component 7.
The second aspect of the invention provides a numerical control machine tool, which comprises a machine tool body and an electric spindle arranged on the machine tool body, wherein the electric spindle is the electric spindle.
Is different from other embodiments, and the same similar parts between the embodiments are referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An electric spindle, comprising:
a rotating shaft is arranged on the upper part of the rotating shaft,
the shell is sleeved outside the rotating shaft, the shell and the rotating shaft are coaxially arranged, a first cooling component and a buffer component are arranged on the inner wall of the shell, one end, far away from the shell, of the buffer component is in contact with the rotating shaft, a plurality of buffer components are arranged, the buffer components are distributed in an annular array along the axis of the shell, and a second cooling component is arranged on the outer wall of the shell;
the protective shell is sleeved outside the second cooling assembly;
the front end cover and the rear end cover are respectively arranged at two ends of the shell, and the front end cover and the rear end cover are respectively connected with the rotating shaft and the shell in a rotating way through bearings.
2. The motorized spindle of claim 1, wherein the buffer assembly comprises a telescoping rod, a support plate and a spring, wherein one end of the telescoping rod is fixedly connected with the inner wall of the housing, the other end of the telescoping rod is connected with the support plate, the spring is sleeved on the telescoping rod, one end of the spring is in contact with the inner wall of the housing, and the other end of the spring is in contact with the support plate.
3. An electric spindle according to claim 1 or claim 2, wherein the damping assembly is provided in a position where the housing is adjacent the front end cap and/or the housing is adjacent the rear end cap.
4. The motorized spindle of claim 2, wherein a side of the support plate proximate the shaft is an arcuate surface adapted to the outer wall of the shaft.
5. The motorized spindle of claim 1, wherein the first cooling assembly comprises a wind equalization member and a wind channel sequentially penetrating the protective housing and the shell, the wind equalization member has a ventilation cavity, the wind channel is communicated with the ventilation cavity, the wind equalization member has a first air outlet, and the front end cover and/or the rear end cover has a second air outlet.
6. The motorized spindle of claim 1, wherein the second cooling assembly comprises a liquid cooling conduit that is disposed around the outer wall of the housing, the protective housing having a liquid channel thereon, the liquid cooling conduit in communication with the liquid channel.
7. The motorized spindle of claim 1, wherein the second cooling assembly is a groove formed in the outer wall of the housing, the protective shell is sleeved on the outer wall of the housing, the protective shell is in sealing connection with two ends of the housing, the protective shell and the groove formed in the housing form a liquid cooling pipeline, the protective shell is provided with a liquid channel, and the liquid cooling pipeline is communicated with the liquid channel.
8. The motorized spindle of claim 1, further comprising an axial vibration reduction assembly comprising a stop bearing, an axial vibration reduction spring, and a limiting plate, the limiting plate being disposed on an inner wall of the housing, the stop bearing being disposed on the rotating shaft, the axial vibration reduction spring being sleeved on the rotating shaft, and one end of the axial vibration reduction spring being in contact with an outer race of the stop bearing, and the other end being in contact with the limiting plate.
9. The motorized spindle of claim 8, wherein the axial vibration reduction assembly is disposed between the first cooling assembly and the buffer assembly.
10. A numerically controlled machine tool, comprising a machine tool body and an electric spindle provided on the machine tool body, the electric spindle being as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310542259.8A CN116329585A (en) | 2023-05-15 | 2023-05-15 | Motorized spindle and numerical control machine tool comprising motorized spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310542259.8A CN116329585A (en) | 2023-05-15 | 2023-05-15 | Motorized spindle and numerical control machine tool comprising motorized spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116329585A true CN116329585A (en) | 2023-06-27 |
Family
ID=86882588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310542259.8A Pending CN116329585A (en) | 2023-05-15 | 2023-05-15 | Motorized spindle and numerical control machine tool comprising motorized spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116329585A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436804A (en) * | 2008-12-16 | 2009-05-20 | 华南理工大学 | Electric principal shaft with composite stator structure |
| CN203717680U (en) * | 2013-12-31 | 2014-07-16 | 广州市昊志机电股份有限公司 | Pre-tightening structure for high-speed electric main shaft bearing |
| CN211915530U (en) * | 2020-04-08 | 2020-11-13 | 凯歌主轴科技（大连）有限公司 | Internal cooling device of electric spindle for numerical control lathe |
| CN212121675U (en) * | 2020-04-08 | 2020-12-11 | 泉州市盛誉机械设备有限公司 | Anti-channeling high-power main shaft |
| CN114227372A (en) * | 2021-12-14 | 2022-03-25 | 东莞市巨冈机械工业有限公司 | Electric spindle cooling mechanism |
-
2023
- 2023-05-15 CN CN202310542259.8A patent/CN116329585A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436804A (en) * | 2008-12-16 | 2009-05-20 | 华南理工大学 | Electric principal shaft with composite stator structure |
| CN203717680U (en) * | 2013-12-31 | 2014-07-16 | 广州市昊志机电股份有限公司 | Pre-tightening structure for high-speed electric main shaft bearing |
| CN211915530U (en) * | 2020-04-08 | 2020-11-13 | 凯歌主轴科技（大连）有限公司 | Internal cooling device of electric spindle for numerical control lathe |
| CN212121675U (en) * | 2020-04-08 | 2020-12-11 | 泉州市盛誉机械设备有限公司 | Anti-channeling high-power main shaft |
| CN114227372A (en) * | 2021-12-14 | 2022-03-25 | 东莞市巨冈机械工业有限公司 | Electric spindle cooling mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 傅玉灿: "难加工材料高效加工技术", vol. 2, 西北工业大学出版社, pages: 138 - 139 * |
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