CN109317700A - A kind of low-heat extension high precision electro main shaft - Google Patents
A kind of low-heat extension high precision electro main shaft Download PDFInfo
- Publication number
- CN109317700A CN109317700A CN201811340914.7A CN201811340914A CN109317700A CN 109317700 A CN109317700 A CN 109317700A CN 201811340914 A CN201811340914 A CN 201811340914A CN 109317700 A CN109317700 A CN 109317700A
- Authority
- CN
- China
- Prior art keywords
- rotor mandrel
- wall
- main shaft
- air holes
- locking nut
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 239000000112 cooling gas Substances 0.000 claims abstract description 10
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 210000004907 gland Anatomy 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Turning (AREA)
Abstract
The present invention provides a kind of low-heat to extend high precision electro main shaft, is provided with water nozzle seat, the circulating cooling channel in water nozzle seat connection casing shell wall on casing end face；Rotor mandrel both ends are machined with axial air holes respectively, and air holes has radial through-hole to connect chassis cavity, and rotor mandrel's rear end air holes connects cooling gas jets.Two kinds of types of cooling, it is ensured that main shaft low-heat extends, and guarantees precision.Locking nut is installed on the tail end of rotor mandrel by screw thread afterwards, there are gap between the outer wall of rear locking nut and the inner wall of rear axle pressure cap, is machined with reverse thread on the outer wall of rear locking nut；When rotor mandrel rotates, the medium in gap is discharged reverse thread outward, prevents moisture from entering bearing and influencing precision.
Description
Technical field
The present invention relates to precision machine tool fields, and in particular to precision machine tool electro spindle.
Background technique
Main shaft is the most important component of precision machine tool, and machine tool chief axis mainly has electro spindle and mechanical main shaft two major classes at present.
Electro spindle is the highly integrated equipment of electromechanical integration, is applied and its extensive.Since the axis of electro spindle is in-built electrical arbor,
Therefore the 9 Cr 2 steel using electromagnetic heating that main shaft turns stator generation has non exclusiveness, so reduce 9 Cr 2 steel using electromagnetic heating is to electro spindle bring negative effect
Each main shaft factory research direction.The 9 Cr 2 steel using electromagnetic heating of electro spindle stator mainly passes through coolant liquid and cools down to casing at present, reaches opposite
Thermal balance；But armature spindle is because rotatable parts lead to not realize quick, efficient or effective cooling, and Ou You producer is using air cooling
Armature spindle scheme, but aqueous compressed gas can not carry out gas-water separation, will lead to and enter parts of bearings containing water gas, lead to bearing
Damage, therefore actual motion is ineffective.Therefore most of high-speed electric main shaft is inevitable because heat extends at present, will affect numerical control machine
The machining accuracy of bed.
Summary of the invention
For overcome in the prior art electro spindle cooling effect it is bad, in compressed gas the problem of water pollution bearing, this hair
It is bright to provide a kind of low-heat extension high precision electro main shaft.
The technical scheme adopted by the invention is as follows:
A kind of low-heat extends high precision electro main shaft, including casing, and stator and rotor mandrel are equipped in casing, and stator is embedded in casing
Inner wall is simultaneously powered, and the both ends of rotor mandrel are supported on casing by bearing, and are sealed by axle pressure cap, outside front axle pressure cap
Side is equipped with preceding locking nut, and rear locking nut is equipped between rear axle pressure cap and bearing, water nozzle seat, water are provided on casing end face
Circulating cooling channel in mouth seat connection casing shell wall；Rotor mandrel both ends are machined with axial air holes respectively, and air holes has radial direction
Through-hole connects chassis cavity, and rotor mandrel's rear end air holes connects cooling gas jets.
Further, rear locking nut is installed on the tail end of rotor mandrel by screw thread, and the outer wall of rear locking nut is with after
There are gap between the inner wall of bearing gland, reverse thread is machined on the outer wall of rear locking nut；When rotor mandrel rotates, reversely
Medium in gap is discharged screw thread outward.
Further, in the air holes of cooling gas jets insertion rotor mandrel's tail end, cooling gas jets and air holes inner wall
Between there are gaps.
Still further, the rotor mandrel surface is helicoid.
After taking above technical scheme, the invention has the benefit that
1. cooperating the spiral on rotor mandrel surface by high pressure gas, the 9 Cr 2 steel using electromagnetic heating generated on electro spindle is passed through into rotor mandrel
Air holes export, the heat for avoiding rotor mandrel from generating extend, and influence precision.
2. passing through the reverse thread on rear locking nut outer wall and its gap between rear axle pressure cap inner wall, by high pressure gas
Moisture discharge in body, avoids enter into bearing, influences precision.
3. combining by water cooling and air-cooled mode, the temperature of electro spindle is reduced, the heat extension for avoiding it from generating, shadow
Ring machine tool accuracy.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
A specific embodiment of the invention is further described below in conjunction with attached drawing:
As shown, a kind of low-heat extends high precision electro main shaft, including casing 1, water nozzle seat 2, water nozzle seat are provided on 1 end face of casing
The circulating cooling channel 3 of 2 connection casings, circulating cooling channel gladly select collet, or the runner processed on casing ontology.
After being passed through recirculated cooling water, the heat on casing ontology can be taken away.
Stator 4 and rotor mandrel 5 are coaxially installed in casing 1, stator 4 is embedded in 1 inner wall of casing and is powered, rotor mandrel 5
Both ends casing is supported on by coaxial bearing, and by axle pressure cap 6,7 from both sides sealing, while bearing gland is to bearing
Axial limiting.Locking nut 8 before being equipped on the outside of front axle pressure cap 6, preceding locking nut 8 is screwed in rotor mandrel 5, in order to improve
Sealing effect can take the locking nut with sealing gland.Rear locking nut 9, rotor mandrel are installed between rear axle pressure cap 7 and bearing
Both ends are machined with axial air holes 10 respectively, and air holes end connects chassis cavity, the air holes of 5 rear end of rotor mandrel by radial through-hole
Inside it is inserted with cooling air nozzle 11, the tail end of compressed air from cooling gas jets 11 from rotor mandrel 5 is entered, then chassis cavity again
Heat is taken away in interior diffusion, is finally discharged from the air holes of 5 front end of rotor mandrel.
Due to having steam in high pressure gas, in order to avoid steam enters bearing, rear locking nut 9 is installed by screw thread
There are gap, rear locking nuts 9 between the tail end of rotor mandrel 5, the outer wall of rear locking nut 9 and the inner wall of rear axle pressure cap 6
Outer wall on be machined with reverse thread；When rotor mandrel 5 rotates, reverse thread arranges the water that bearing is flowed in gap outward
Out, or since the motive force that rotation generates avoids water from entering in bearing.
Cooling gas jets 11 are inserted into the air holes of 5 tail end of rotor mandrel, and between cooling gas jets and air holes inner wall there are
Gap.It is flowed into air holes and is discharged after water discharge in compressed gas.In order to more preferably by water guiding, by rotor mandrel 5
Rear end face processes funnel surface, and enters the negative pressure generated when cavity is spread from air holes using high pressure gas and water is sucked wind
Hole.
It, therefore can be on the surface of rotor mandrel 5 since the technical program is to take away heat from 5 surface of rotor mandrel using wind
Spiral shell 12 is processed, increases contact area, can preferably exchange heat, so that rotor mandrel's temperature temperature rise declines to a great extent, reduces rotor
Axis heat extends, and realizes the high-precision of electro spindle operation.
Claims (4)
1. a kind of low-heat extends high precision electro main shaft, including casing, stator and rotor mandrel, stator coil insertion device are installed in casing
Shell inner wall is simultaneously powered, and the both ends of rotor mandrel are supported on casing by bearing, and are sealed by axle pressure cap, front axle pressure cap
Outside is equipped with preceding locking nut, and rear locking nut is equipped between rear axle pressure cap and bearing, which is characterized in that on casing end face
It is provided with water nozzle seat, the circulating cooling channel in water nozzle seat connection casing shell wall；Rotor mandrel both ends are machined with axial wind respectively
Hole, air holes have radial through-hole to connect chassis cavity, and rotor mandrel's rear end air holes connects cooling gas jets.
2. a kind of low-heat extension high precision electro main shaft according to claim 1, which is characterized in that rear locking nut is logical
The tail end that screw thread is installed on rotor mandrel is crossed, there are gaps between the outer wall of rear locking nut and the inner wall of rear axle pressure cap, rear to lock
Reverse thread is machined on the outer wall of tight nut；When rotor mandrel rotates, the medium in gap is discharged reverse thread outward.
3. a kind of low-heat extension high precision electro main shaft according to claim 1, which is characterized in that the cooling gas blowout
Mouth is inserted into the air holes of rotor mandrel's tail end, and there are gaps between cooling gas jets and air holes inner wall.
4. a kind of low-heat extension high precision electro main shaft according to claim 1, which is characterized in that the rotor mandrel
Surface is helicoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811340914.7A CN109317700A (en) | 2018-11-12 | 2018-11-12 | A kind of low-heat extension high precision electro main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811340914.7A CN109317700A (en) | 2018-11-12 | 2018-11-12 | A kind of low-heat extension high precision electro main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109317700A true CN109317700A (en) | 2019-02-12 |
Family
ID=65259568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811340914.7A Pending CN109317700A (en) | 2018-11-12 | 2018-11-12 | A kind of low-heat extension high precision electro main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109317700A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110732689A (en) * | 2019-11-27 | 2020-01-31 | 江苏思维福特机械科技股份有限公司 | high-precision running electric spindle for machining center |
| CN114054786A (en) * | 2021-11-29 | 2022-02-18 | 广州市昊志机电股份有限公司 | Electric spindle and machine tool |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0631587A (en) * | 1992-07-06 | 1994-02-08 | San Rocco Donzelli Ind Spa | Method for air cooling spindle of machine tool and corresponding air cooling spindle |
| JPH07107705A (en) * | 1993-10-04 | 1995-04-21 | Shinko Electric Co Ltd | Cooling mechanism for outer rotor type high-speed electric rotating machine |
| CN201323493Y (en) * | 2008-11-27 | 2009-10-07 | 华南理工大学 | Spiral groove cooling channel structure in electric main shaft |
| DE102012011206A1 (en) * | 2011-06-07 | 2012-12-13 | Franz Kessler Gmbh | Electromotor for e.g. motor spindle in machine tool, has stator for surrounding hollow cylindrical thermal vacuum insulation element and arranged outside cooling passage and flange channel when stator is viewed in radial direction |
| CN204247971U (en) * | 2014-11-12 | 2015-04-08 | 广州市昊志机电股份有限公司 | A kind of air floated high speed electric mandrel |
| CN104625104A (en) * | 2014-12-26 | 2015-05-20 | 广州市昊志机电股份有限公司 | Minitype multifunctional high-speed motorized spindle |
| CN205165898U (en) * | 2015-09-17 | 2016-04-20 | 安阳工学院 | Two cold electric main shafts of atmoseal |
| CN205566014U (en) * | 2016-04-07 | 2016-09-07 | 温岭市宇海机电有限公司 | Electric main shaft of two coolings |
| CN205684727U (en) * | 2016-06-05 | 2016-11-16 | 无锡阳光精机有限公司 | The high rotating speed electro spindle of a kind of high accuracy |
| CN206313600U (en) * | 2016-12-02 | 2017-07-07 | 北京精雕精密机械制造有限公司 | A kind of electro spindle with rotor core cooling |
| CN107617751A (en) * | 2017-09-14 | 2018-01-23 | 西安交通大学 | A kind of electro spindle based on the cooling of improved hot rotating heat pipe axle center |
| CN209077806U (en) * | 2018-11-12 | 2019-07-09 | 靖江斯贝得电机制造有限公司 | A kind of low-heat extension high precision electro main shaft |
-
2018
- 2018-11-12 CN CN201811340914.7A patent/CN109317700A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0631587A (en) * | 1992-07-06 | 1994-02-08 | San Rocco Donzelli Ind Spa | Method for air cooling spindle of machine tool and corresponding air cooling spindle |
| JPH07107705A (en) * | 1993-10-04 | 1995-04-21 | Shinko Electric Co Ltd | Cooling mechanism for outer rotor type high-speed electric rotating machine |
| CN201323493Y (en) * | 2008-11-27 | 2009-10-07 | 华南理工大学 | Spiral groove cooling channel structure in electric main shaft |
| DE102012011206A1 (en) * | 2011-06-07 | 2012-12-13 | Franz Kessler Gmbh | Electromotor for e.g. motor spindle in machine tool, has stator for surrounding hollow cylindrical thermal vacuum insulation element and arranged outside cooling passage and flange channel when stator is viewed in radial direction |
| CN204247971U (en) * | 2014-11-12 | 2015-04-08 | 广州市昊志机电股份有限公司 | A kind of air floated high speed electric mandrel |
| CN104625104A (en) * | 2014-12-26 | 2015-05-20 | 广州市昊志机电股份有限公司 | Minitype multifunctional high-speed motorized spindle |
| CN205165898U (en) * | 2015-09-17 | 2016-04-20 | 安阳工学院 | Two cold electric main shafts of atmoseal |
| CN205566014U (en) * | 2016-04-07 | 2016-09-07 | 温岭市宇海机电有限公司 | Electric main shaft of two coolings |
| CN205684727U (en) * | 2016-06-05 | 2016-11-16 | 无锡阳光精机有限公司 | The high rotating speed electro spindle of a kind of high accuracy |
| CN206313600U (en) * | 2016-12-02 | 2017-07-07 | 北京精雕精密机械制造有限公司 | A kind of electro spindle with rotor core cooling |
| CN107617751A (en) * | 2017-09-14 | 2018-01-23 | 西安交通大学 | A kind of electro spindle based on the cooling of improved hot rotating heat pipe axle center |
| CN209077806U (en) * | 2018-11-12 | 2019-07-09 | 靖江斯贝得电机制造有限公司 | A kind of low-heat extension high precision electro main shaft |
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| 陈碧莹;肖曙红;: "木工机械用高速电主轴散热结构设计与温度场分析", 机电工程技术, no. 05 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110732689A (en) * | 2019-11-27 | 2020-01-31 | 江苏思维福特机械科技股份有限公司 | high-precision running electric spindle for machining center |
| CN114054786A (en) * | 2021-11-29 | 2022-02-18 | 广州市昊志机电股份有限公司 | Electric spindle and machine tool |
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| 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190212 |