CN114227372A - Electric spindle cooling mechanism - Google Patents
Electric spindle cooling mechanism Download PDFInfo
- Publication number
- CN114227372A CN114227372A CN202111527045.0A CN202111527045A CN114227372A CN 114227372 A CN114227372 A CN 114227372A CN 202111527045 A CN202111527045 A CN 202111527045A CN 114227372 A CN114227372 A CN 114227372A
- Authority
- CN
- China
- Prior art keywords
- electric spindle
- cooling
- air
- inlet pipe
- sleeve
- 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.)
- Pending
Links
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
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses an electric spindle cooling mechanism, which relates to the technical field of electric spindles and comprises: the first cooling assembly is arranged on the outer wall of the electric spindle shell; and the second cooling assembly is an air inlet pipe, one end of the air inlet pipe penetrates through the end part of the input end of the electric spindle and extends to the inside of the electric spindle shell, the other end of the air inlet pipe is connected with an external cooling air source, and the end part of the output end of the electric spindle is provided with an air outlet communicated with the inside of the electric spindle shell. According to the invention, through the combination of the first cooling assembly and the second assembly, the first cooling assembly is arranged on the outer wall of the electric spindle shell, cold air is blown into the electric spindle shell through the air inlet pipe, heat exchange is carried out on the surface of the electric spindle shell through a cooling medium, the cold air is blown into the electric spindle shell through the air inlet pipe, and the cold air is blown out through the other end of the electric spindle shell, so that the cooling rate of the electric spindle can be further reduced, the thermal deformation of the electric spindle is reduced, and the processing precision of the electric spindle is improved.
Description
Technical Field
The invention relates to the technical field of electric spindles, in particular to a cooling mechanism of an electric spindle.
Background
The electric spindle is a new technology which integrates a machine tool spindle and a spindle motor into a whole and appears in the field of numerical control machines. The electric spindle integrates the motor in the spindle unit, and because the rotating speed is very high, a large amount of heat is generated during operation, the temperature rise of the electric spindle is caused, the thermal state characteristic and the dynamic characteristic of the electric spindle are deteriorated, and the normal work of the electric spindle is influenced, so that certain measures must be taken to control the temperature of the electric spindle to be constant within a certain value.
In the prior art, a circulating hole or a circulating groove is machined in a main shaft outer cylinder, a cooling medium is introduced into the circulating hole or the circulating groove, the cooling medium exchanges heat with the outer wall of the main shaft outer cylinder, and then the heat inside the main shaft is taken away.
Therefore, it is an urgent need to solve the problem of the art to provide an electric spindle cooling mechanism that can simplify the process of machining a circulation hole or a circulation groove in a spindle outer cylinder and improve the cooling efficiency of an electric spindle.
Disclosure of Invention
In view of the above, the present invention provides a cooling mechanism for an electric spindle, which aims to solve one of the problems in the background art, and achieve cooling inside and outside the electric spindle together, thereby increasing the cooling rate of the electric spindle.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electric spindle cooling mechanism comprising:
a first cooling assembly disposed on an outer wall of the electric spindle housing;
the second cooling assembly is an air inlet pipe, one end of the air inlet pipe penetrates through the end part of the input end of the electric spindle and extends to the inside of the electric spindle shell, the other end of the air inlet pipe is connected with an external cooling air source, and the end part of the output end of the electric spindle is provided with an air outlet communicated with the inside of the electric spindle shell.
Further, first cooling module includes cooling pipeline and sleeve, the cooling pipeline is around establishing the outer wall of electric main shaft shell, the sleeve cover is established outside the cooling pipeline, the sleeve with electric main shaft shell fixed connection.
Furthermore, the electric spindle cooling mechanism further comprises a gland and an end cover, wherein the gland is arranged at one end of the input end of the electric spindle, the gland is fixedly connected with the electric spindle shell and the sleeve respectively, a through hole for the air inlet pipe and the cooling pipeline to penetrate through is formed in the gland, the end cover is arranged at one end of the output end of the electric spindle, the end cover is fixedly connected with the electric spindle shell and the sleeve respectively, and a through hole corresponding to the air outlet is formed in the end cover.
Further, the electric spindle shell and the heat-conducting medium is densely filled between the sleeves, sealing gaskets are arranged at the joints of the gland and the electric spindle shell and the sleeves, sealing gaskets are also arranged at the joints of the end cover and the electric spindle shell and the sleeves, and the sealing gaskets are used for preventing the heat-conducting medium from leaking.
Furthermore, the electric spindle cooling mechanism further comprises an air equalizing piece, the outer wall of the air equalizing piece is fixedly connected with the inner wall of the electric spindle shell, the air equalizing piece is of a circular ring-shaped structure, an annular through cavity is formed in the air equalizing piece, a plurality of uniformly distributed air holes are formed in the inner wall of the air equalizing piece and communicated with the annular through cavity, a pipe joint communicated with the annular through cavity is formed in the side wall of the air equalizing piece, and one end of the air inlet pipe, extending to the inside of the electric spindle shell, is connected with the pipe joint.
According to the technical scheme, compared with the prior art, the electric spindle cooling mechanism is characterized in that the first cooling assembly is combined with the second assembly, heat exchange is carried out between the first cooling assembly and the outer wall of the electric spindle shell, the circulating cooling medium is introduced into the cooling pipeline, cold air is blown into the electric spindle shell through the air inlet pipe, heat exchange is carried out on the surface of the electric spindle shell through the cooling medium, the cold air is blown into the electric spindle shell through the air inlet pipe, and the cold air is blown out from the other end of the electric spindle shell finally, so that the cooling rate of the electric spindle can be increased, the thermal deformation of the electric spindle is reduced, and the machining precision of the electric spindle is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an electric spindle cooling mechanism provided in the present invention;
FIG. 2 is a schematic structural diagram of a cooling circuit provided in the present invention;
FIG. 3 is a schematic structural view of a wind equalizing member according to the present invention;
FIG. 4 is a top view of the wind equalizing member provided in the present invention;
fig. 5 is a cross-sectional view taken along the line a-a of fig. 4 in accordance with the present invention.
Wherein: 1 is an electric spindle shell; 2 is a rotor; 3 is a stator; 4 is a mandrel; 5 is a bearing; 6 is a cooling pipeline; 7 is a sleeve; 8 is an air inlet pipe; 9 is the input end of the electric spindle; 10 is the output end of the electric spindle; 11 is an air outlet; 12 is a gland; 13 is an end cover; 14 is a liquid inlet; 15 is a liquid outlet; 16 is a heat-conducting medium; 17 is a sealing gasket; 18 is a wind equalizing piece; 19 is an annular through cavity; 20 is an air hole; and 21 is a pipe joint.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an embodiment of the present invention discloses an electric spindle cooling mechanism, wherein the electric spindle includes an electric spindle housing 1, a rotor 2, a stator 3, and a mandrel 4, the mandrel 4 is inserted into the electric spindle housing 1, the rotor 2 is fixed on the mandrel 4, the stator 3 is fixed on an inner wall of the electric spindle housing 1, the stator 3 corresponds to the rotor 2, and two ends of the mandrel 4 are rotatably connected to two ends of the electric spindle housing 1 through bearings 5, respectively.
The electric spindle cooling mechanism comprises a first cooling assembly and a second cooling assembly.
The first cooling assembly is arranged on the outer wall of the electric spindle shell 1; wherein, first cooling unit includes cooling pipeline 6 and sleeve 7, and cooling pipeline 6 is around establishing the outer wall at electric main shaft housing 1, and sleeve 7 cover is established outside cooling pipeline 6, sleeve 7 and electric main shaft housing 1 fixed connection.
The second cooling assembly is an air inlet pipe 8, one end of the air inlet pipe 8 penetrates through the end part of the electric spindle input end 9 and extends to the inside of the electric spindle shell 1, the other end of the air inlet pipe 8 is connected with an external cooling air source, and the end part of the electric spindle output end 10 is provided with an air outlet 11 communicated with the inside of the electric spindle shell 1.
In this embodiment, the electric spindle cooling mechanism further includes a gland 12 and an end cap 13, the gland 12 is disposed at one end of the input end 9 of the electric spindle, the gland 12 is respectively and fixedly connected to the electric spindle housing 1 and the sleeve 7, the gland 12 is provided with a through hole for the air inlet pipe 8 and the cooling pipeline 6 to pass through, preferably, the liquid inlet 14 and the liquid outlet 15 of the cooling pipeline 6 are located at the same end of the electric spindle housing 1, the liquid inlet 14 and the liquid outlet 15 are respectively connected to external cooling equipment, the cooling equipment is configured to introduce a circulating cooling medium into the cooling pipeline 6, the cooling medium is preferably a cooling liquid, that is, the cooling mode for cooling the outer wall of the electric spindle housing 1 is liquid cooling, the end cap 13 is disposed at one end of the output end 10 of the electric spindle, the end cap 13 is respectively and fixedly connected to the electric spindle housing 1 and the sleeve 7, and the end cap 13 is provided with a through hole corresponding to the air outlet 11.
In this embodiment, it is preferable that a heat conducting medium 16 is tightly filled between the electric spindle housing 1 and the sleeve 7, sealing gaskets 17 are disposed at the joints of the gland 12, the electric spindle housing 1 and the sleeve 7, sealing gaskets 17 are also disposed at the joints of the end cap 13, the electric spindle housing 1 and the sleeve 7, the sealing gaskets 17 are disposed to prevent the heat conducting medium 16 from leaking, wherein, the heat-conducting medium 16 can be selected from silicon carbide powder, the silicon carbide powder has high heat conductivity coefficient, small thermal expansion coefficient, stable chemical property and good wear resistance, the heat-conducting medium 16 can better conduct the heat transferred from the electric main shaft shell 1 to the cooling pipeline 6, by arranging the cooling pipeline 6 inside the heat transfer medium 16, the contact area between the cooling pipeline 6 and the heat transfer medium 16 can be increased, and the cooling rate of the cooling pipeline 6 on the surface of the electric spindle housing 1 can be increased to a certain extent.
In the above embodiment, the electric spindle cooling mechanism further includes an air equalizing member 18, an outer wall of the air equalizing member 18 is fixedly connected to an inner wall of the electric spindle housing 1, the air equalizing member 18 is a circular ring structure, an annular through cavity 19 is formed inside the air equalizing member 18, a plurality of air holes 20 are uniformly distributed on the inner wall of the air equalizing member 18, the plurality of air holes 20 are all communicated with the annular through cavity 19, a pipe joint 21 communicated with the annular through cavity 19 is formed on a side wall of the air equalizing member 18, and one end of the air inlet pipe 8 extending into the electric spindle housing 1 is connected to the pipe joint 21. Through the setting of wind equalizing part 18, can blow to 4 directions of dabber by the inside of wind equalizing part 18 with the produced air conditioning of outside cooling air supply, wind equalizing part 18 has the effect of dispersion air conditioning, make air conditioning to the inside stator 3 of electricity main shaft housing 1, rotor 2 and dabber 4 cool off, furthermore, specifically, the gas outlet 11 that electricity main shaft housing 1 tip set up is a plurality of, what a plurality of gas outlets 11 is the axle array distributes in the terminal surface of electricity main shaft housing 1, the shape of gas outlet 11 can be long and narrow structure, make a plurality of gas outlets 11 be in the terminal surface of electricity main shaft housing 1 and scatter the shape structure, be convenient for the inside gas after the heat transfer of electricity main shaft housing 1 evenly discharges.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
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 (5)
1. An electric spindle cooling mechanism, comprising:
a first cooling assembly disposed on an outer wall of the electric spindle housing;
the second cooling assembly is an air inlet pipe, one end of the air inlet pipe penetrates through the end part of the input end of the electric spindle and extends to the inside of the electric spindle shell, the other end of the air inlet pipe is connected with an external cooling air source, and the end part of the output end of the electric spindle is provided with an air outlet communicated with the inside of the electric spindle shell.
2. The electric spindle cooling mechanism according to claim 1, wherein the first cooling assembly includes a cooling pipeline and a sleeve, the cooling pipeline is wound around an outer wall of the electric spindle housing, the sleeve is sleeved outside the cooling pipeline, and the sleeve is fixedly connected to the electric spindle housing.
3. The electric spindle cooling mechanism according to claim 2, further comprising a gland and an end cap, wherein the gland is disposed at one end of the input end of the electric spindle, the gland is respectively fixedly connected to the electric spindle housing and the sleeve, the gland is provided with a through hole for the air inlet pipe and the cooling pipeline to pass through, the end cap is disposed at one end of the output end of the electric spindle, the end cap is respectively fixedly connected to the electric spindle housing and the sleeve, and the end cap is provided with a through hole corresponding to the air outlet.
4. The electric spindle cooling mechanism according to claim 3, wherein a heat conducting medium is tightly filled between the electric spindle housing and the sleeve, sealing gaskets are disposed at joints of the gland, the electric spindle housing and the sleeve, and sealing gaskets are disposed at joints of the end cover, the electric spindle housing and the sleeve, and are used for preventing leakage of the heat conducting medium.
5. The electric spindle cooling mechanism according to claim 1, further comprising an air equalizing member, wherein an outer wall of the air equalizing member is fixedly connected to an inner wall of the electric spindle housing, the air equalizing member is of a circular ring structure, an annular through cavity is formed inside the air equalizing member, a plurality of uniformly distributed air holes are formed in the inner wall of the air equalizing member, the air holes are communicated with the annular through cavity, a pipe connector communicated with the annular through cavity is formed in a side wall of the air equalizing member, and one end of the air inlet pipe, which extends into the electric spindle housing, is connected to the pipe connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111527045.0A CN114227372A (en) | 2021-12-14 | 2021-12-14 | Electric spindle cooling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111527045.0A CN114227372A (en) | 2021-12-14 | 2021-12-14 | Electric spindle cooling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114227372A true CN114227372A (en) | 2022-03-25 |
Family
ID=80755787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111527045.0A Pending CN114227372A (en) | 2021-12-14 | 2021-12-14 | Electric spindle cooling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114227372A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116329585A (en) * | 2023-05-15 | 2023-06-27 | 齐鲁理工学院 | Motorized spindle and numerical control machine tool comprising motorized spindle |
| CN116809982A (en) * | 2023-08-29 | 2023-09-29 | 太仓市华盈电子材料有限公司 | Permanent magnet synchronous liquid cooling electric spindle |
| CN116979760A (en) * | 2023-08-03 | 2023-10-31 | 湖南华中数控机床有限公司 | Five-axis swing head with cooling system and cooling method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2679912Y (en) * | 2004-01-09 | 2005-02-16 | 永进机械工业股份有限公司 | Air cooling loop structure with built-in motor mainshaft |
| JP2006340571A (en) * | 2005-06-06 | 2006-12-14 | Toshiba Corp | Electric motor for vehicle |
| CN203712406U (en) * | 2013-12-31 | 2014-07-16 | 广州市昊志机电股份有限公司 | Air cooling air sealing structure of thin and small high-speed motorized spindle |
| CN207039379U (en) * | 2017-05-22 | 2018-02-23 | 东莞市巨冈机械工业有限公司 | A kind of electro spindle sealing gland air-flow cools down motor |
| CN210587193U (en) * | 2019-09-17 | 2020-05-22 | 惠州市景阳科技有限公司 | Electric spindle cooling mechanism |
-
2021
- 2021-12-14 CN CN202111527045.0A patent/CN114227372A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2679912Y (en) * | 2004-01-09 | 2005-02-16 | 永进机械工业股份有限公司 | Air cooling loop structure with built-in motor mainshaft |
| JP2006340571A (en) * | 2005-06-06 | 2006-12-14 | Toshiba Corp | Electric motor for vehicle |
| CN203712406U (en) * | 2013-12-31 | 2014-07-16 | 广州市昊志机电股份有限公司 | Air cooling air sealing structure of thin and small high-speed motorized spindle |
| CN207039379U (en) * | 2017-05-22 | 2018-02-23 | 东莞市巨冈机械工业有限公司 | A kind of electro spindle sealing gland air-flow cools down motor |
| CN210587193U (en) * | 2019-09-17 | 2020-05-22 | 惠州市景阳科技有限公司 | Electric spindle cooling mechanism |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116329585A (en) * | 2023-05-15 | 2023-06-27 | 齐鲁理工学院 | Motorized spindle and numerical control machine tool comprising motorized spindle |
| CN116979760A (en) * | 2023-08-03 | 2023-10-31 | 湖南华中数控机床有限公司 | Five-axis swing head with cooling system and cooling method |
| CN116809982A (en) * | 2023-08-29 | 2023-09-29 | 太仓市华盈电子材料有限公司 | Permanent magnet synchronous liquid cooling electric spindle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114227372A (en) | Electric spindle cooling mechanism | |
| CN210587193U (en) | Electric spindle cooling mechanism | |
| CN110666194B (en) | Electric spindle | |
| CN109617272B (en) | Integrated form cooling structure based on electric drive system | |
| CN110735808B (en) | Pulsating flow enhanced cooling bearing seat device | |
| CN111112652A (en) | Internal and external cooling system, cooling method, electric spindle and machining center | |
| CN214263911U (en) | High-efficient electric main shaft cooling jacket easy to assemble | |
| CN211889864U (en) | Numerical control rotary table and cooling system thereof | |
| CN113315298A (en) | Air-cooling and water-cooling combined cooling motor | |
| JP2001192961A (en) | High temperature rotary union | |
| CN206834870U (en) | Rotor with oil cooling structure | |
| KR20200134159A (en) | Cooling arrangement for an electrical machine and electrical machine | |
| CN201696596U (en) | Ball screw hollow cooling and sealing device | |
| CN113394890B (en) | Motor stator cooling system and motor | |
| CN115898427A (en) | Shield constructs two cooling device of speed reducer | |
| CN211135551U (en) | Electricity main shaft heat insulation structure | |
| CN114785027A (en) | Heat radiation assembly and motor | |
| CN211163147U (en) | Cooling structure for rear end bearing of electric spindle | |
| CN204425092U (en) | The motor housing assembly of tool dual-cooled runner | |
| WO2022151617A1 (en) | Motor spindle and machine tool | |
| CN111843605A (en) | Main shaft cooling body and lathe | |
| CN215419870U (en) | Magnetic suspension motor housing with high heat dissipation performance | |
| CN111120337A (en) | Low-vibration motor structure and water pump | |
| CN212338516U (en) | High-durability rotary joint for wind power generation equipment | |
| CN214601967U (en) | Cooling jacket of electric spindle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220325 |
|
| RJ01 | Rejection of invention patent application after publication |