CN108775375A - A kind of electro spindle - Google Patents
A kind of electro spindle Download PDFInfo
- Publication number
- CN108775375A CN108775375A CN201810385782.3A CN201810385782A CN108775375A CN 108775375 A CN108775375 A CN 108775375A CN 201810385782 A CN201810385782 A CN 201810385782A CN 108775375 A CN108775375 A CN 108775375A
- Authority
- CN
- China
- Prior art keywords
- shaft core
- hole
- shaft
- counterweight
- electro spindle
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Abstract
The invention discloses a kind of electro spindle, including shell, stator and shaft core, the shaft core is set in the shell, is set in the middle part of the shaft core in the stator and is formed cartridge part, it is characterised in that：The cartridge part first end is provided with the first balance adjustment component, second end is provided with the second balance adjustment component coordinated with the first balance adjustment component, the first balance adjustment component is used to adjust the weight at the shaft core both ends with the second balance adjustment component, so that shaft core both ends weight balancing, to reduce the vibration in the shaft core rotation process, the electro spindle adjustment effect is apparent.
Description
Technical field
The present invention relates to field of machining, especially a kind of electro spindle.
Background technology
Electro spindle is one of most important core component of numerical controlled engraving and milling device, is numerical controlled engraving and milling device engraving, milling, grinding
Core component is mainly used in the industries such as electronic accessory parts manufacture, miniature precision mold manufacturing, hardware, Furniture manufacture.Electricity
Main shaft is made of frameless motor, main shaft, bearing, main axle unit shell, drive module and cooling device etc..The rotor of motor is adopted
It is made of one with press fit method and main shaft, main shaft is then supported by front and back bearings.The stator of motor is installed on main shaft by coolant jacket
In the shell of unit.The speed change of main shaft is controlled by main shaft drives module, and the Wen Sheng in main axle unit is limited by cooling device.?
The rear end of main shaft equipped with test the speed, angle measurement displacement sensor, the internal taper hole of front end and end face are for installing cutter.The rotating speed of main shaft is straight
The quality for the product for influencing to process is connect, after the speed of mainshaft improves, the roughness and knife mark on converted products surface have obviously
Improve.Requirement so that with client to the surface quality of converted products is gradually increased, and the speed of mainshaft traditionally cannot be satisfied
Customer demand.After the speed of mainshaft improves, the problem of standing in the breach is exactly that the vibration values of main shaft are excessive, existing main shaft due to
The problems such as manufacturing process, there are the differences of weight at both ends, and when running at high speed, main shaft will will produce vibration, and then influence to add
Work quality.In traditional design, the vibration values of main shaft are adjusted by balance adjustment component, and balance adjustment component includes locking nut,
By being provided with threaded hole on locking nut, after calculating angle, it is threaded into hole using counterweight and is adjusted, but theoretically axis
Core amount of unbalance is located at the middle part of shaft core, and the position for adjusting amount of unbalance is more apparent closer to more effect in the middle part of shaft core.But tradition
In design, since too far, there are the unconspicuous problems of effect during adjustment in the middle part of the positional distance shaft core of adjustment.
Invention content
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of apparent electro spindles of adjustment effect.
The purpose of the present invention adopts the following technical scheme that realization：
A kind of electro spindle, including shell, stator and shaft core, the shaft core are set in the shell, in the middle part of the shaft core
It is set in the stator and forms cartridge part, the cartridge part first end is provided with the first balance adjustment component, and second end is set
It is equipped with the second balance adjustment component coordinated with the first balance adjustment component, the first balance adjustment component and described the
Two balance adjustment components are used to adjust the weight at the shaft core both ends, so that shaft core both ends weight balancing, described in reduction
Vibration in shaft core rotation process.
Further, the first balance adjustment component includes the first counterweight and shaft shoulder seat, the shaft shoulder seat with it is described
Shaft core is affixed, and the shaft core is mounted on by the shaft shoulder seat in the shell, and the shaft shoulder seat circumferentially offers multiple first
Circular hole, and multiple first circular holes, towards the axle center of the shaft shoulder seat, first counterweight can be assembled to described
One circular hole is removed from first circular hole.
Further, the second balance adjustment component includes the second counterweight, the shaft core and second counterweight
Corresponding position circumferentially offers multiple second circular holes, and multiple second circular holes are matched towards the axle center of the shaft core, described second
Heavy mail can be assembled to second circular hole or be removed from second circular hole.
Further, first counterweight is threadedly coupled with first circular hole, second counterweight and described the
Two circular holes are threadedly coupled.
Further, it is provided with cone-head screw in the first through hole and second through-hole, the cone-head screw is used for
When main shaft is not adjusted, the first through hole and second through-hole are blocked, to prevent sundries logical by described first
Hole and second through-hole enter in the shell.
Further, the shaft core first end is provided with upper locking device, and the upper locking device is supported with the shaft shoulder seat
It connects, the upper locking device is abutted with the shaft shoulder seat, and the shaft core second end, which is provided with, to be coordinated with the upper locking device
Lower locking device, the upper locking device are used to limit the axial displacement of the shaft core with lower locking device.
Further, the upper locking device includes top chock, upper locking nut and upper bearing (metal), and the upper bearing (metal) passes through
The top chock is mounted in the shell, and the upper bearing (metal) and the shaft core are rotatablely connected, the upper bearing (metal) second end with
The shaft shoulder seat abuts, and the upper locking nut is threadedly coupled with the shaft core, and the upper locking nut is described for limiting
The axial movement of bearing, the upper locking nut first end are provided with balanced component, and the upper balanced component includes opening up institute
State upper locking nut first end face in equally distributed first threaded hole of periphery and coordinate with first threaded hole first
Mass screw, first mass screw are used for when the shaft core first end weight is lighter than the shaft core second end, are put into institute
It states in the first threaded hole, to increase the weight of the shaft core first end, so that shaft core both ends weight balancing.
Further, the lower locking device includes step, lower locking nut and lower bearing, and the lower bearing passes through
The step is mounted in the shell, and the lower bearing is rotatablely connected with the shaft core, the step first end
Abutted with the shaft core, the lower locking nut is threadedly coupled with the shaft core, the lower locking nut for limit it is described under
The axial movement of bearing.
Further, the lower locking nut second end is provided with lower balanced component, and the lower balanced component includes opening up
Coordinate in equally distributed second threaded hole of periphery and with second threaded hole in the lower locking nut second end face
Second mass screw, second mass screw are used for when the shaft core second end weight is lighter than the shaft core first end, put
Enter in second threaded hole, to increase the weight of the shaft core second end, so that shaft core both ends weight balancing.
Compared with prior art, the beneficial effects of the present invention are：
First balance adjustment component and the second balance adjustment component are arranged in cartridge part both sides, i.e., close to shaft core the present invention
The position at middle part improves counterweight adjustment effect to make the counterweight to shaft core amount of unbalance adjust in the middle part of shaft core with this；When
When the shaft core first end weight is lighter than the shaft core second end, by adjusting the first balance adjustment component, increase the shaft core
The weight of first end, so that shaft core both ends weight balancing, when the shaft core second end weight is lighter than the shaft core first end
When, by adjusting the second balance adjustment component, increase the weight of the shaft core second end, so that shaft core both ends weight is flat
Weighing apparatus to reduce the vibration that shaft core generates in the course of work, and then reduces fraction defective.
Description of the drawings
Fig. 1 is the structural schematic diagram of electro spindle；
Fig. 2 is the cross section view at A shown in FIG. 1；
Fig. 3 is the cross section view at B shown in FIG. 1.
In figure：10, shell；11, first through hole；12, the second through-hole；20, shaft core；21, cartridge part；22, the second circular hole；
31, shaft shoulder seat；311, the first circular hole；40, stator；50, cone-head screw；60, upper locking device；61, upper locking nut；62, on
Bearing；63, top chock；70, lower locking device；71, lower locking nut；72, lower bearing；73, step；611, the first spiral shell
Pit；711, the second threaded hole.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the present invention is described further, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
A kind of electro spindle as shown in Figs. 1-3, including shell 10, stator 40 and shaft core 20, shaft core 20 are set in shell 10
Interior, 20 middle part of shaft core is set in stator 40 and forms cartridge part 21, and 21 first end of cartridge part is provided with the first balance adjustment group
Part, second end are provided with the second balance adjustment component coordinated with the first balance adjustment component, the first balance adjustment component and
Two balance adjustment components are used to adjust the weight at 20 both ends of shaft core, so that 20 both ends weight balancing of shaft core, to reduce by 20 turns of shaft core
Vibration during dynamic.
When shaft core 20 is adjusted, the amount of unbalance that specific measuring instrument measures shaft core 20 is first passed through, then
It is adjusted according to amount of unbalance；When 20 first end of shaft core is when 20 first end weight of shaft core is lighter than 20 second end of shaft core, pass through
It adjusts the first balance adjustment component, increases the weight of 20 first end of shaft core, so that 20 both ends weight balancing of shaft core, when shaft core 20 the
When two end weight are lighter than 20 first end of shaft core, by the second balance adjustment component of adjusting, increase the weight of 20 second end of shaft core, with
Make 20 both ends weight balancing of shaft core, to reduce the vibration that shaft core 20 generates in the course of work, and then reduces fraction defective.
Specifically, the first balance adjustment component includes the first counterweight and shaft shoulder seat 31, and shaft shoulder seat 31 and shaft core 20 are affixed,
Shaft core 20 is mounted on by shaft shoulder seat 31 in shell 10, and shaft shoulder seat 31 is circumferential to offer multiple first circular holes 311, and multiple first
Towards the axle center of shaft shoulder seat 31, the first counterweight can be assembled to the first circular hole 311 or from the first circular hole 311 circular hole 311
It removes.Second balance adjustment component includes the second counterweight, and shaft core 20 and the second counterweight corresponding position circumferentially offer multiple the
Two circular holes 22, and multiple second circular holes 22 are towards the axle center of shaft core 20, the second counterweight can be assembled to the second circular hole 22 or
It is removed from the second circular hole 22.
Amount of unbalance is measured by specific measuring instrument, when 20 first end weight of shaft core is lighter than 20 second end of shaft core
When, it is put into the first circular hole 311, to increase the weight of 20 first end of shaft core, so that 20 both ends weight balancing of shaft core, matches when second
Heavy mail is used for when 20 second end weight of shaft core is lighter than 20 first end of shaft core, the second circular hole 22 is put into, to increase shaft core 20 second
The weight at end, so that 20 both ends weight balancing of shaft core, by installing the first counterweight or past second circular hole into the first circular hole 311
Second counterweight is installed in 22, adjusts the weight at 20 both ends of shaft core so that 20 both ends weight balancing of shaft core, to reduce the course of work
The vibration that middle shaft core 20 generates, and then reduce fraction defective；In addition, shaft core 20 is divided into multiple areas by the axial direction along shaft core 20
Impartial sector, the problem of due to manufacturing process, wherein the quality of a sector region will be less than the weight in other regions, to ensure
The quality of above-mentioned sector region is equal with other regional qualities, and the is packed into toward the first circular hole 311 corresponding to above-mentioned sector region
One counterweight is packed into the second counterweight into the second circular hole 22, so that the quality of the sector region is equal with other regions, so that
The weight balancing of shaft core 20, to reduce the vibration that shaft core 20 generates in the course of work.
To avoid the first counterweight or the second counterweight in rotation process from falling off, the first counterweight and the first circular hole 311 with
And second counterweight coordinated by the way of being threadedly coupled with the second circular hole 22.
More specifically, to avoid sundries from being fallen in shell 10 by first through hole 11 and the second through-hole 12, mandrel is turned
It is dynamic to impact, therefore cone-head screw 50 is provided in first through hole 11 and the second through-hole 12, with block first through hole 11 with
Second through-hole 12, prevents sundries from falling into shell 10, when if you need to be adjusted to shaft core 20, first leads to cone-head screw 50 from first
It is taken out in hole 11 or the second through-hole 12, the first counterweight, the second counterweight is put into pair by first through hole 11, the second through-hole 12
In the threaded hole answered, 20 weight of shaft core is adjusted.
Specifically, 20 first end of shaft core is provided with upper locking device 60, and upper locking device 60 is abutted with shaft shoulder seat 31, locking
Tight device 60 is abutted with shaft shoulder seat 31, and 20 second end of shaft core is provided with the lower locking device 70 coordinated with upper locking device 60, on
Locking device 60 is used to limit the axial displacement of shaft core 20 with lower locking device 70.
By the way that upper locking device 60 is arranged with lower locking device 70 to limit the axial movement of shaft core 20, the course of work is prevented
Middle shaft core 20 moves up and down, and then causes shaft core 20 impaired.
Specifically, upper locking device 60 includes that top chock 63, upper locking nut 61 and upper bearing (metal) 62, upper bearing (metal) 62 pass through
Top chock 63 is mounted in shell 10, and upper bearing (metal) 62 is rotatablely connected with shaft core 20, and 62 second end of upper bearing (metal) is supported with shaft shoulder seat 31
It connects, upper locking nut 61 is threadedly coupled with shaft core 20, and upper locking nut 61 is used to limit the axial movement of upper bearing (metal) 62, by upper
Upper bearing (metal) 62 is mounted in shell 10 by bearing block 63, prevents the upper bearing (metal) abutted with shaft shoulder seat 31 in the course of work 62 from falling off,
The axial movement of shaft core 20 is limited simultaneously.In addition, to improve the stability of upper bearing (metal) 62, upper locking device 60 further includes upper locking screw
Mother 61, upper locking nut 61 is threadedly coupled with shaft core 20, by the way that the upper locking nut 61 being threadedly coupled with shaft core 20 is arranged, is prevented
In the course of work, upper bearing (metal) 62 falls off due to vibrated excessive from shaft core 20, and staff is avoided to come to harm.
More specifically, for the regulating effect of enhancing main shaft, 61 first end of upper locking nut is provided with upper balanced component, on
Balanced component include open up 61 first end face of upper locking nut in equally distributed first threaded hole 611 of periphery and with the first spiral shell
The first mass screw that pit 611 coordinates measures amount of unbalance, in the first screw thread by specific measuring instrument when use
Add the first mass screw in hole 611, so that shaft core 20 balances
Lower locking device 70 includes that step 73, lower locking nut 71 and lower bearing 72, lower bearing 72 pass through lower bearing
Seat 73 is mounted in shell 10, and lower bearing 72 is rotatablely connected with shaft core 20, and 73 first end of step is abutted with shaft core 20, lower lock
Tight nut 71 is threadedly coupled with shaft core 20, and lower locking nut 71 is used to limit the axial movement of lower bearing 72.
Shaft core 20 is limited by step 73 and the cooperation of upper bearing (metal) 62, prevents shaft core 20 in the course of work from occurring
It is axially moved, and is connect with shaft core 20 by lower bearing 72, to reduce the vibration generated in 20 rotary course of shaft core；To avoid down
Bearing 72 falls off from shaft core 20, and lower locking device 70 further includes lower locking nut 71, lower locking nut 71 and 20 screw thread of shaft core
Connection, lower locking nut 71 are used to limit the axial movement of lower bearing 72.
In addition, for the regulating effect of enhancing main shaft, in the setting of 71 second end of lower locking nut and the cooperation of upper balanced component
For lower balanced component to improve counterbalance effect, lower balanced component includes opening up 71 second end face of lower locking nut to be uniformly distributed in periphery
The second threaded hole 711 and the second mass screw with the cooperation of the second threaded hole 711, when use pass through specific measuring instrument
Device measures amount of unbalance, and the second mass screw is added in the second threaded hole 711, so that shaft core 20 balances.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of electro spindle, including shell, stator and shaft core, the shaft core are set in the shell, set in the middle part of the shaft core
Loaded in the stator and forming cartridge part, it is characterised in that：The side of the cartridge part is provided with the first balance adjustment component,
The other side of the cartridge part is provided with the second balance adjustment component coordinated with the first balance adjustment component, and described first
Balance adjustment component is used to adjust the weight at the shaft core both ends with the second balance adjustment component, so that the shaft core both ends
Weight balancing.
2. electro spindle as described in claim 1, it is characterised in that：The first balance adjustment component include the first counterweight with
Shaft shoulder seat, the shaft shoulder seat and the shaft core are affixed, and the shaft core is mounted on by the shaft shoulder seat in the shell, the axis
Shoulder seat circumferentially offers multiple first circular holes, and multiple first circular holes are matched towards the axle center of the shaft shoulder seat, described first
Heavy mail can be assembled to first circular hole or be removed from first circular hole.
3. electro spindle as claimed in claim 2, it is characterised in that：The second balance adjustment component includes the second counterweight,
The shaft core and second counterweight corresponding position circumferentially offer multiple second circular holes, and multiple second circular holes are towards institute
The axle center of shaft core is stated, second counterweight can be assembled to second circular hole or be removed from second circular hole.
4. electro spindle as claimed in claim 3, it is characterised in that：First counterweight connects with the first circular hole screw thread
It connects, second counterweight is threadedly coupled with second circular hole.
5. electro spindle as claimed in claim 3, it is characterised in that：The case surface is offered wears for first counterweight
The first through hole crossed, first counterweight pass through the first through hole and coordinate with first circular hole, the case surface
The second through-hole passed through for second counterweight is offered, second counterweight passes through second through-hole and described second
Circular hole coordinates.
6. electro spindle as claimed in claim 5, it is characterised in that：It is provided with cone in the first through hole and second through-hole
Head screw, the cone-head screw are used for when main shaft is not adjusted, and block the first through hole and second through-hole.
7. electro spindle as claimed in claim 2, it is characterised in that：Described shaft core one end is provided with upper locking device, it is described on
Locking device is abutted with the shaft shoulder seat, and the upper locking device is abutted with the shaft shoulder seat, and the shaft core other end is provided with
With the lower locking device of upper locking device cooperation, the upper locking device is with lower locking device for limiting the shaft core
Axial displacement.
8. electro spindle as claimed in claim 7, it is characterised in that：The upper locking device includes top chock, upper locking screw
Female and upper bearing (metal), the upper bearing (metal) are mounted on by the top chock in the shell, and the upper bearing (metal) turns with the shaft core
Dynamic connection, the upper bearing (metal) second end are abutted with the shaft shoulder seat, and the upper locking nut is threadedly coupled with the shaft core, described
Upper locking nut is used to limit the axial movement of the upper bearing (metal), and the upper locking nut first end is provided with balanced component,
The upper balanced component include open up the upper locking nut first end face in equally distributed first threaded hole of periphery and with
First mass screw of the first threaded hole cooperation.
9. electro spindle as claimed in claim 7, it is characterised in that：The lower locking device includes step, lower locking screw
Female and lower bearing, the lower bearing are mounted on by the step in the shell, and the lower bearing turns with the shaft core
Dynamic connection, the step first end are abutted with the shaft core, and the lower locking nut is threadedly coupled with the shaft core, described
Lower locking nut is used to limit the axial movement of the lower bearing.
10. electro spindle as claimed in claim 9, it is characterised in that：The lower locking nut second end is provided with lower balance group
Part, the lower balanced component include be opened in the lower locking nut second end face in equally distributed second threaded hole of periphery with
And the second mass screw with second threaded hole cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810385782.3A CN108775375A (en) | 2018-04-26 | 2018-04-26 | A kind of electro spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810385782.3A CN108775375A (en) | 2018-04-26 | 2018-04-26 | A kind of electro spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108775375A true CN108775375A (en) | 2018-11-09 |
Family
ID=64026757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810385782.3A Pending CN108775375A (en) | 2018-04-26 | 2018-04-26 | A kind of electro spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108775375A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576197A (en) * | 2019-09-14 | 2019-12-17 | 浙江能伟科技有限公司 | Electric spindle |
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|---|---|---|---|---|
| JP2004308726A (en) * | 2003-04-04 | 2004-11-04 | Sumitomo Heavy Ind Ltd | Hydrostatic bearing device and double-head grinding device |
| CN2883787Y (en) * | 2006-04-06 | 2007-03-28 | 中国航空动力机械研究所 | Narrow long flexible rotor high speed balancer |
| CN102175396A (en) * | 2010-12-31 | 2011-09-07 | 西安交通大学 | Online automatic balance executing device for high-speed electro-spindle rotor |
| CN202317039U (en) * | 2011-09-16 | 2012-07-11 | 安阳斯普机械有限公司 | High-speed double-head engraving and milling electric spindle |
| CN102794468A (en) * | 2012-08-31 | 2012-11-28 | 绍兴文理学院 | High-speed electric spindle |
| CN102974845A (en) * | 2012-11-29 | 2013-03-20 | 昆明理工大学 | High-speed electric main shaft device |
| CN106112796A (en) * | 2016-06-30 | 2016-11-16 | 佛山市震源机电科技有限公司 | A kind of double end internal grinding electro spindle |
-
2018
- 2018-04-26 CN CN201810385782.3A patent/CN108775375A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004308726A (en) * | 2003-04-04 | 2004-11-04 | Sumitomo Heavy Ind Ltd | Hydrostatic bearing device and double-head grinding device |
| CN2883787Y (en) * | 2006-04-06 | 2007-03-28 | 中国航空动力机械研究所 | Narrow long flexible rotor high speed balancer |
| CN102175396A (en) * | 2010-12-31 | 2011-09-07 | 西安交通大学 | Online automatic balance executing device for high-speed electro-spindle rotor |
| CN202317039U (en) * | 2011-09-16 | 2012-07-11 | 安阳斯普机械有限公司 | High-speed double-head engraving and milling electric spindle |
| CN102794468A (en) * | 2012-08-31 | 2012-11-28 | 绍兴文理学院 | High-speed electric spindle |
| CN102974845A (en) * | 2012-11-29 | 2013-03-20 | 昆明理工大学 | High-speed electric main shaft device |
| CN106112796A (en) * | 2016-06-30 | 2016-11-16 | 佛山市震源机电科技有限公司 | A kind of double end internal grinding electro spindle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576197A (en) * | 2019-09-14 | 2019-12-17 | 浙江能伟科技有限公司 | Electric spindle |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181109 |
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| RJ01 | Rejection of invention patent application after publication |