CN109277944A - Grinding wheel electro spindle - Google Patents
Grinding wheel electro spindle Download PDFInfo
- Publication number
- CN109277944A CN109277944A CN201811425461.8A CN201811425461A CN109277944A CN 109277944 A CN109277944 A CN 109277944A CN 201811425461 A CN201811425461 A CN 201811425461A CN 109277944 A CN109277944 A CN 109277944A
- Authority
- CN
- China
- Prior art keywords
- grinding wheel
- electro spindle
- main shaft
- step surface
- shaped projections
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The present invention provides grinding wheel electro spindles, can solve the technical issues of traditional grinding wheel electro spindle is not particularly suited for the case where high revolving speed is processed.Grinding wheel electro spindle, including grinding wheel tooling and electro spindle, grinding wheel tooling includes grinding wheel stand and grinding wheel chuck, electro spindle includes main shaft, the right side position of grinding wheel stand is equipped with pilot hole, the left end of main shaft is equipped with assembly convex block, it is characterized by: pilot hole includes the round taper hole being set gradually from left to right, pedestal step surface and cylindrical hole, assembling convex block includes the conical shaped projections being set gradually from left to right, axis body step surface and cylindrical bump, the diameter of the right openings of round taper hole is less than the diameter of the right side root of conical shaped projections, cylindrical bump is plugged in cylindrical hole, grinding wheel stand, which is located in the region of pedestal step surface, is equipped with the bolt around axis distribution, it is connect after bolt-through grinding wheel stand with spindle thread, after conical shaped projections strut the side wall of round taper hole, pedestal step surface is bonded with axis body step surface.
Description
Technical field
The present invention relates to electro spindle fields, and in particular to grinding wheel electro spindle.
Background technique
Traditional grinding wheel electro spindle includes grinding wheel tooling and electro spindle, and grinding wheel tooling includes grinding wheel stand and grinding wheel chuck, and electricity is main
Axis includes main shaft, sleeve, bearing group and motor, and the right side position of grinding wheel stand is equipped with pilot hole, and the left end of main shaft is equipped with dress
With convex block, pilot hole, assembly convex block are that truncated-cone structure, grinding wheel stand and spindle nose are fixed by pilot hole, assembly convex block
Position cooperates and passes through pilot hole, assembles the frictional force transmitting torque between the inside and outside conical surface of convex block, and spindle nose is threadedly coupled
There is locking nut, locking nut carries out axial limiting to grinding wheel chuck.The tradition grinding wheel electro spindle is under rotation situation, grinding wheel stand
With the trend to disengaging on the outside of diameter, the frictional force for leading to pilot hole and assembling between convex block reduces, and turns in electro spindle high speed
In the case where dynamic, the frictional force between the inside and outside conical surface will be not enough to effectively fix grinding wheel stand and spindle nose, and it is hidden to there is safety
Suffer from, therefore the tradition grinding wheel electro spindle is not particularly suited for the case where high revolving speed is processed.
Summary of the invention
In view of the above-mentioned problems, can solve traditional grinding wheel electro spindle the present invention provides grinding wheel electro spindle and be not particularly suited for
The technical issues of the case where high revolving speed is processed.
Its technical solution is such, grinding wheel electro spindle, including grinding wheel tooling and electro spindle, and the grinding wheel tooling includes sand
Wheel seat and grinding wheel chuck, the electro spindle include main shaft, and the right side position of the grinding wheel stand is equipped with pilot hole, a left side for the main shaft
Side end is equipped with assembly convex block, it is characterised in that: the pilot hole and the assembly convex block are step structure, the pilot hole
Including the round taper hole, pedestal step surface and cylindrical hole being set gradually from left to right, the assembly convex block includes from left to right
Conical shaped projections, axis body step surface and the cylindrical bump set gradually, the diameter of the right openings of the round taper hole are less than
The diameter of the right side root of the conical shaped projections, the conical shaped projections are plugged in the round taper hole and taper one
It causes, the cylindrical bump is plugged in the cylindrical hole, and the grinding wheel stand, which is located in the region of the pedestal step surface, to be set
There is the bolt around axis distribution, is connect after the bolt-through grinding wheel stand with the spindle thread, in the effect of the bolt
Under, after the conical shaped projections strut the side wall of the round taper hole, the pedestal step surface and the axis body step face paste
It closes.
Further, the round taper hole and the taper of the conical shaped projections are 1:4.
Further, the diameter of the right openings of the diameter and round taper hole of the right side root of the conical shaped projections
Difference be 0.01mm ~ 0.02mm.
Further, the electro spindle further includes sleeve, motor and bearing group, and the main shaft is axially through the sleeve
Inner cavity and both ends pass through bearing group and the sleeve respectively and cooperate, the rotor of the motor is sheathed on the outer rim of the main shaft
Face is simultaneously fixedly connected with the main shaft, and the stator sleeve of the motor is set to the outer edge surface of rotor and is fixedly connected with the sleeve,
Lining ring structure is equipped between the adjacent bearing of the bearing group, the lining ring structure includes interior lining ring and outer lining ring, the liner
Snare is set to the outer edge surface of the main shaft, and the outer lining snare is set to the outer edge surface of the interior lining ring, and the sleeve inner is equipped with
Total oil circuit is lubricated, the outer lining ring is equipped with the bearing oil circuit with the total oil communication of lubrication, the bearing oil circuit of the outer lining ring
It offers side branch and is located at the outlet end of side branch equipped with the inclined-plane vertical with side branch, side branch court
To the junction of the ball and the bearing inner race.
Further, the left end of the sleeve is fixed with drive end bearing bracket, right-hand end is fixed with rear end cap, the front end
Labyrinth seal structure is respectively equipped between lid and the grinding wheel stand, between the drive end bearing bracket and adjacent spacer ring.
Further, the left end of the main shaft is fixed with balancing head, right-hand end is fixed with and matches with the balancing head
Receiver, the transmitter of conjunction.
Further, the left end of the sleeve is fitted with thermistor, and the thermistor is for measuring bearing group
First bearing in left side temperature.
Grinding wheel electro spindle of the invention, on the basis of the positioning of traditional conical surface, to the ruler of round taper hole and conical shaped projections
The diameter that the setting of little progress row, the i.e. diameter of the right openings of round taper hole are less than the right side root of conical shaped projections, by enclosing
Conical shaped projections are pressed into round taper hole around the bolt of axis distribution and strut round taper hole, are improved between the inside and outside conical surface
Frictional force so that grinding wheel electro spindle be suitable for high revolving speed process the case where；Simultaneously as the right openings of round taper hole
Diameter be less than conical shaped projections right side root diameter, conical shaped projections are normally inserted into round taper hole, pedestal step surface and
There are gaps between axis body step surface, after conical shaped projections strut the side wall of round taper hole under the action of bolt, pedestal platform
Terrace is bonded with axis body step surface, can be ensured the conical surface and step surface while be positioned, and positioning accuracy is improved.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the assembling structure schematic diagram of grinding wheel tooling and electro spindle end of the invention.
Fig. 3 is the decomposition assembling schematic diagram of Fig. 2.
Fig. 4 is partially enlarged structural schematic diagram at A in Fig. 1.
Specific embodiment
As shown in Figures 1 to 4, grinding wheel electro spindle, including grinding wheel tooling and electro spindle, grinding wheel tooling include 2 He of grinding wheel stand
Grinding wheel chuck 1, electro spindle include main shaft 3, and the right side position of grinding wheel stand 2 is equipped with pilot hole, and the left end of main shaft 3 is equipped with assembly
Convex block, pilot hole and assembly convex block are step structure, and pilot hole includes round taper hole 4, the pedestal being set gradually from left to right
Step surface 5 and cylindrical hole 6, assembly convex block include the conical shaped projections 8 being set gradually from left to right, axis body step surface 9 and circle
Stud bumps 10, the diameter D2 of the right openings of round taper hole 4 are less than the diameter D1 and two of the right side root of conical shaped projections 8
Person's difference range is 0.01mm ~ 0.02mm, and preferably 0.12mm, conical shaped projections 8 are plugged in round taper hole 4 and taper one
It causes, be 1:4, cylindrical bump 10 is plugged in cylindrical hole 6, and grinding wheel stand 2, which is located to be equipped in the region of pedestal step surface 5, to be enclosed
Around the bolt 7 of axis distribution, bolt 7 is threadedly coupled after the perforation 30 of grinding wheel stand 2 with the threaded hole 31 of main shaft 3, in bolt 7
Under the action of, after conical shaped projections 8 strut the side wall of round taper hole 4, pedestal step surface 5 is bonded with axis body step surface 9.
Electro spindle 3 further includes sleeve 11, motor and bearing group, inner cavity and both ends of the main shaft 3 axially through sleeve 11
Being cooperated respectively by bearing group and sleeve 11, the bearing group in 3 left side of main shaft passes through 27 axial restraint of spacer ring 21 and preceding locking nut,
For the bearing group on 3 right side of main shaft by 29 axial restraint of balance ring 28 and rear locking nut, the rotor 12 of motor is sheathed on main shaft 3
Outer edge surface is simultaneously fixedly connected with main shaft 3, and the stator 13 of motor is sheathed on the outer edge surface of rotor 12 and is fixedly connected with sleeve 11, axis
It holds and is equipped with lining ring structure between the adjacent bearing 14 of group, lining ring structure includes interior lining ring 16 and outer lining ring 15, and interior lining ring 16 is arranged
In the outer edge surface of main shaft 3, outer lining ring 15 is sheathed on the outer edge surface of interior lining ring 16, is equipped with inside sleeve 11 and lubricates total oil circuit 17, outside
Lining ring 15 is equipped with the bearing oil circuit 18 being connected to the total oil circuit 17 of lubrication, and the bearing oil circuit 18 of outer lining ring 15 offers side branch 19
And the outlet end for being located at side branch 19 is equipped with the inclined-plane 20 vertical with side branch 19, and side branch 19 is towards ball and axis
Hold the junction of inner ring, be applicable at high speeds, with Oil-air Lubrication, directly to the junction of ball and bearing inner race into
Row injection, it is ensured that lubrication, cooling effect.
The left end of sleeve is fixed with drive end bearing bracket 22, right-hand end is fixed with rear end cap 26, drive end bearing bracket 22 and grinding wheel stand 2
Between, between drive end bearing bracket 22 and adjacent spacer ring 21 be respectively equipped with labyrinth seal structure, wherein in the right end face of drive end bearing bracket
It is equipped with 1 second collar flange equipped with 2 first collar flanges, medial surface, it is cyclic annular that the left end face of grinding wheel stand is equipped with 2
Groove, the outer edge surface of spacer ring are equipped with 1 third collar flange, and the first collar flange cooperates with annular recess, the second ring-type is convex
Edge and third collar flange cooperatively form labyrinth seal structure, and then ensure sealing effect.
The left end of main shaft 3 is fixed with balancing head 23, right-hand end is fixed with the receiver 24 cooperated with balancing head 23,
Transmitter 25 carries out real-time dynamic balancing in electric chief axis system work, and balance efficiency is high, reduces axis system imbalance and is drawn
The vibration risen.
The left end of sleeve 11 is fitted with thermistor (not shown) to be parallel to the direction of axis, and thermistor is used for
The temperature of first bearing in left side of bearing group is measured, i.e. directly measurement and the closest bearing of grinding wheel, actual response bearing
Temperature conditions.
Claims (7)
1. grinding wheel electro spindle, including grinding wheel tooling and electro spindle, the grinding wheel tooling includes grinding wheel stand and grinding wheel chuck, the electricity
Main shaft includes main shaft, and the right side position of the grinding wheel stand is equipped with pilot hole, and the left end of the main shaft is equipped with assembly convex block,
Be characterized in that: the pilot hole and the assembly convex block are step structure, and the pilot hole includes being set gradually from left to right
Round taper hole, pedestal step surface and cylindrical hole, the assembly convex block include the conical shaped projections being set gradually from left to right,
Axis body step surface and cylindrical bump, the diameter of the right openings of the round taper hole are less than the right side root of the conical shaped projections
The diameter in portion, the conical shaped projections are plugged in the round taper hole and taper is consistent, and the cylindrical bump is plugged in
In the cylindrical hole, the grinding wheel stand, which is located in the region of the pedestal step surface, is equipped with the bolt around axis distribution, institute
It is connect after stating bolt-through grinding wheel stand with the spindle thread, under the action of the bolt, the conical shaped projections will be described
After the side wall of round taper hole struts, the pedestal step surface is bonded with the axis body step surface.
2. grinding wheel electro spindle according to claim 1, it is characterised in that: the round taper hole and the conical shaped projections
Taper is 1:4.
3. grinding wheel electro spindle according to claim 2, it is characterised in that: the diameter of the right side root of the conical shaped projections
Difference with the diameter of the right openings of the round taper hole is 0.01mm ~ 0.02mm.
4. grinding wheel electro spindle according to claim 1, it is characterised in that: the electro spindle further includes sleeve, motor and axis
Hold group, the main shaft axially through the sleeve inner cavity and both ends pass through bearing group respectively and the sleeve cooperates, institute
The rotor for stating motor is sheathed on the outer edge surface of the main shaft and is fixedly connected with the main shaft, and the stator sleeve of the motor, which is set to, to be turned
The outer edge surface of son is simultaneously fixedly connected with the sleeve, and lining ring structure, the lining ring are equipped between the adjacent bearing of the bearing group
Structure includes interior lining ring and outer lining ring, and the liner snare is set to the outer edge surface of the main shaft, and the outer lining snare is set to described
The outer edge surface of interior lining ring, the sleeve inner, which is equipped with, lubricates total oil circuit, and the outer lining ring is equipped with and the total oil communication of lubrication
Bearing oil circuit, the bearing oil circuit of the outer lining ring offers side branch and is located at the outlet end of side branch and be equipped with and side
The vertical inclined-plane of portion's branch, the side branch is towards the junction of the ball and the bearing inner race.
5. grinding wheel electro spindle according to claim 4, it is characterised in that: the left end of the sleeve is fixed with front end
Lid, right-hand end are fixed with rear end cap, between the drive end bearing bracket and the grinding wheel stand, between the drive end bearing bracket and adjacent spacer ring
It is respectively equipped with labyrinth seal structure.
6. grinding wheel electro spindle according to claim 4, it is characterised in that: the left end of the main shaft is fixed with balance
Head, right-hand end are fixed with receiver, transmitter with balancing head cooperation.
7. grinding wheel electro spindle according to claim 4, it is characterised in that: the left end of the sleeve is fitted with temperature-sensitive electricity
Resistance, the thermistor are used to measure the temperature of first bearing in left side of bearing group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811425461.8A CN109277944A (en) | 2018-11-27 | 2018-11-27 | Grinding wheel electro spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811425461.8A CN109277944A (en) | 2018-11-27 | 2018-11-27 | Grinding wheel electro spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109277944A true CN109277944A (en) | 2019-01-29 |
Family
ID=65173629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811425461.8A Pending CN109277944A (en) | 2018-11-27 | 2018-11-27 | Grinding wheel electro spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109277944A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170910A (en) * | 2019-06-25 | 2019-08-27 | 张劲松 | A kind of scribing machine air-floating main shaft structure of the double positioning of cutterhead |
| CN110170859A (en) * | 2019-06-28 | 2019-08-27 | 无锡微硕精密机械制造有限公司 | A kind of Five-axis NC Machining Center milling impeller fixture |
| CN110216579A (en) * | 2019-06-25 | 2019-09-10 | 张劲松 | A kind of scribing machine air-floating main shaft structure of the cooling cleaning of the interior water outlet of axis |
| CN111482897A (en) * | 2019-06-25 | 2020-08-04 | 张劲松 | Air floatation main shaft structure for improving scribing cutting precision and cutting performance |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0476314U (en) * | 1990-11-16 | 1992-07-03 | ||
| JP2000033564A (en) * | 1998-07-17 | 2000-02-02 | Koyo Mach Ind Co Ltd | Spindle fitting device of rotary grinding wheel |
| CN102554774A (en) * | 2012-03-05 | 2012-07-11 | 威海华东数控股份有限公司 | Electric spindle capable of automatically replacing grinding wheels of grinder |
| CN104912748A (en) * | 2015-06-19 | 2015-09-16 | 江苏荣基重工科技有限公司 | Wind power spindle locking plate |
| CN105904343A (en) * | 2015-02-19 | 2016-08-31 | 通用汽车环球科技运作有限责任公司 | Quick Change Adapter For Grinding Wheels |
| CN106826546A (en) * | 2017-02-28 | 2017-06-13 | 禹奕智能科技（上海）有限公司 | For the quick change grinding tool of robot automatically grinding |
| CN207087490U (en) * | 2017-08-17 | 2018-03-13 | 安阳市福沃德机械有限责任公司 | A kind of casting-pipe inner wall grinder |
| CN209207233U (en) * | 2018-11-27 | 2019-08-06 | 无锡机床股份有限公司 | A kind of grinding wheel electro spindle |
-
2018
- 2018-11-27 CN CN201811425461.8A patent/CN109277944A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0476314U (en) * | 1990-11-16 | 1992-07-03 | ||
| JP2000033564A (en) * | 1998-07-17 | 2000-02-02 | Koyo Mach Ind Co Ltd | Spindle fitting device of rotary grinding wheel |
| CN102554774A (en) * | 2012-03-05 | 2012-07-11 | 威海华东数控股份有限公司 | Electric spindle capable of automatically replacing grinding wheels of grinder |
| CN105904343A (en) * | 2015-02-19 | 2016-08-31 | 通用汽车环球科技运作有限责任公司 | Quick Change Adapter For Grinding Wheels |
| CN104912748A (en) * | 2015-06-19 | 2015-09-16 | 江苏荣基重工科技有限公司 | Wind power spindle locking plate |
| CN106826546A (en) * | 2017-02-28 | 2017-06-13 | 禹奕智能科技（上海）有限公司 | For the quick change grinding tool of robot automatically grinding |
| CN207087490U (en) * | 2017-08-17 | 2018-03-13 | 安阳市福沃德机械有限责任公司 | A kind of casting-pipe inner wall grinder |
| CN209207233U (en) * | 2018-11-27 | 2019-08-06 | 无锡机床股份有限公司 | A kind of grinding wheel electro spindle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170910A (en) * | 2019-06-25 | 2019-08-27 | 张劲松 | A kind of scribing machine air-floating main shaft structure of the double positioning of cutterhead |
| CN110216579A (en) * | 2019-06-25 | 2019-09-10 | 张劲松 | A kind of scribing machine air-floating main shaft structure of the cooling cleaning of the interior water outlet of axis |
| CN111482897A (en) * | 2019-06-25 | 2020-08-04 | 张劲松 | Air floatation main shaft structure for improving scribing cutting precision and cutting performance |
| CN110216579B (en) * | 2019-06-25 | 2024-05-17 | 张劲松 | Air-float main shaft structure of scribing machine for cooling and cleaning water in shaft |
| CN110170859A (en) * | 2019-06-28 | 2019-08-27 | 无锡微硕精密机械制造有限公司 | A kind of Five-axis NC Machining Center milling impeller fixture |
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