CN105328567A - Structure of adjustable high-speed precise roller grinding head and manufacturing method of structure - Google Patents
Structure of adjustable high-speed precise roller grinding head and manufacturing method of structure Download PDFInfo
- Publication number
- CN105328567A CN105328567A CN201510839247.7A CN201510839247A CN105328567A CN 105328567 A CN105328567 A CN 105328567A CN 201510839247 A CN201510839247 A CN 201510839247A CN 105328567 A CN105328567 A CN 105328567A
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- Prior art keywords
- bearing
- eccentric bushing
- main shaft
- emery wheel
- grinding
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Classifications
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- 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
-
- 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
- B24B41/002—Grinding heads
-
- 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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/16—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding peculiarly surfaces, e.g. bulged
- B24B5/167—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding peculiarly surfaces, e.g. bulged for rolls with large curvature radius, e.g. mill rolls
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a structure of an adjustable high-speed precise roller grinding head and a manufacturing method of the structure. According to structure of the adjustable high-speed precise roller grinding head and the manufacturing method of the structure, oil film contact is adopted for all bearings; hybrid bearings are adopted to serve as the bearings on a spindle; an eccentric bushing structure is manufactured to make the tightness of the front sections and the rear sections of the front hybrid bearing and the rear hybrid bearing adjustable; an eccentric bushing and the structure of an eccentric crown mechanism are assembled so that the grinding wheel spindle can move to be close to or retreat from a workpiece, convexities and concavities can be machined through the grinding head, the hybrid bearings can be adjusted, and the grinding precision is improved. According to the structure of the adjustable high-speed precise roller grinding head and the manufacturing method of the structure, the hybrid bearings are adopted so that the structure can be used for high-speed roller grinding with the linear velocity of a grinding wheel reaching 80m/s. The eccentric bushing and the eccentric crown mechanism are assembled so that the grinding wheel spindle can move to be close to or retreat from the workpiece, and grinding of the convexities (the concavities) is achieved. All the bearings are oil film bearings, so that the impact bearing capacity of the spindle is improved, the stability of the grinding head is high, and the grinding precision is high.
Description
Technical field
The present invention relates to a kind of bistrique of the roll grinder for metal cutting, be specifically related to structure of a kind of adjustable high-speed finishing roller bistrique and preparation method thereof.
Background technology
Grinding is the technological method for processing utilizing abrasive material to remove workpiece material.High-speed grinding is exactly the process improving grinding efficiency and grinding quality by improving grinding speed.Roll grinder is Metal Cutting Machine Tool, is made up of, is divided into bearing system, drive system, grinding system, measuring system and control system five subsystems lathe bed, the headstock, tailstock, bracket, in length and breadth planker, bistrique, measurement bay and electric digital control system.Workpiece by the headstock, tailstock and bracket support, and drives rotation by the headstock.Digital control system, according to the Mathematical Modeling of roller surface bus, controls lathe and makes multiaxis compound motion, realize the grinding of emery wheel to roll surface metal in motion process.Measurement data is fed back to Development of Grinding Machines'Control System by on-line measurement system in real time, and goes out closed-loop control by control system to lathe, thus completes the Precision Machining to workpiece.
As shown in Figure 4 be current domestic typical bistrique, the grinding wheel head structure figure of to be a kind of grinding speed of production the be common roll grinding machine of 45m/s, the grinding speed of this bistrique is maximum can only reach 45m/s.Its main shaft is supported by former and later two pure hydrostatic bearings, and the pressure regulation of front and back bearings oil pocket is realized by capillary restrictor.In order to realize the grinding of convexity or middle concave surface, this bistrique have employed a Ge Zhonggao mechanism and rotates to drive eccentric bushing.This bistrique has a lot of shortcoming, and first, what the bearing of this bistrique adopted is pure hydrostatic bearing, and when starting and stop, friction is larger.Secondly, this bistrique cannot be applied to high-speed grinding, once grinding speed is too high, workpiece just there will be various irregular chatter mark, grinding accuracy obviously declines.Further, the bearing of this bistrique cannot regulate, and can not adapt to the requirement of various load, and the scope of application is extensive not.Therefore, be necessary to transform to adapt to wider scope to this bistrique.
Summary of the invention
The object of this invention is to provide structure of a kind of adjustable high-speed finishing roller bistrique and preparation method thereof, to realize high speed roll dressing, realize convexity (recessed) grinding, and the ability withstood shocks of main shaft is strengthened, make bistrique stability higher, grinding accuracy is higher, and bearing is adjustable, and range of work change is wide and precision is higher.
The object of the present invention is achieved like this:
The present invention is positioned at adjustable, high speed and high-precision grinding, based on following consideration: reach requirement at a high speed very simple, as long as pulley speed is high, grinding wheel speed just can be driven high, but want to reach simultaneously at a high speed and high accuracy be difficult, in order to reach this object, present invention employs technical scheme:
The present invention proposes a kind of like this manufacture method of high speed and precision roll bistrique, it all adopts oil film to contact on all bearings; Bearing on main shaft adopts dynamic and hydrostatic bearing; Manufacturing eccentric bushing structure makes two sections, the front and back of former and later two dynamic and hydrostatic bearings carry out adjusting elasticity; The structure of assembling eccentric bushing and Zhong Gao mechanism, makes grinding wheel spindle obtain convergence or recesses the motion of workpiece, making bistrique can process convexity concave, making again dynamic and hydrostatic bearing regulate, and improves grinding accuracy.
Specifically, the invention provides so a kind of high speed and precision roll bistrique, it is made up of emery wheel, belt pulley, main shaft, casing, dynamic and hydrostatic bearing, flow controller and eccentric bushing, and wherein, main shaft is arranged in eccentric bushing, on the both sides of eccentric bushing, dynamic and hydrostatic bearing is installed, eccentric bushing is set with casing, at main shaft leading portion, the right chuck of emery wheel is installed, emery wheel installed by the right chuck of emery wheel, unloading sleeve is being equipped with deep groove ball bearing, and belt pulley is contained on deep groove ball bearing.
Wherein, the connection of belt pulley and main shaft is by installing deep groove ball bearing being fixed on the unloading sleeve on eccentric bushing, belt pulley is enclosed within outside deep groove ball bearing, pulling force on belt pulley is supported by unloading sleeve, on main shaft rear axle, cover has adapter sleeve, adapter sleeve is fixed by pin and belt pulley, and adapter sleeve carries out axial restraint by nut, and adapter sleeve is taper sheath is fixed on main shaft by interference fit.And having been clamped by the left chuck of emery wheel and the right chuck of emery wheel of emery wheel, the left chuck of emery wheel and the right chuck of emery wheel are connected on main shaft by interference fit.This cover unloading mechanism effect is discharged to by the tightening force of belt on the unloading sleeve that is connected with lathe bed, is finally be discharged on lathe bed, thus avoids main shaft to be subject to this tightening force, affect grinding accuracy.
Further, in eccentric bushing inside, the hydrodynamic thrust bearing left cover and hydrodynamic thrust bearing right cover that contact with main shaft are installed; Have employed hydrostatic bearing to avoid both excessive frictions in the contact position of eccentric bushing and casing and cause precise decreasing.
In addition, in casing, it is also provided with Zhong Gao mechanism, Zhong Gao mechanism comprises motor, worm screw, turbine, ball-screw and shift fork, wherein, worm screw is rotated by driven by motor, and worm screw connects worm gear makes transmission direction convert, ball-screw drives it to move up and down by the rotation of turbine, thus by shift fork, eccentric bushing is rotated.
The dynamic and hydrostatic bearing on eccentric bushing both sides is provided with for regulating wedge shape dynamic pressure cavity governor motion; Eccentric bushing is opened two grooves, groove one and groove two, for using two the dynamic and hydrostatic bearing end caps of spanner adjustment in eccentric bushing inside; Two grooves that can go deep into spanner are devised ensure that the adjustability of bearing on the rear end unloading sleeve of casing and on the leading portion place end cap of casing.
The present invention designs all bearings and have employed oil film contact, reduces the friction of device and improves the stability of device.Bearing particularly on main shaft, the present invention adopts dynamic and hydrostatic bearing instead of general oil film static pressure bearing, and make it both have bearing capacity large, in turn ensure that bearing rigidity is high, rotating speed is high simultaneously.In order to reach adjustable object, the present invention has redesigned eccentric bushing, makes two sections, the front and back of former and later two dynamic and hydrostatic bearings carry out adjusting elasticity, substantially increases the precision of bistrique.In order to reach the curve requirement of processing convexity concave, making the range of work of bistrique become wide as possible, present invention employs the structure of eccentric bushing and Zhong Gao mechanism, both made bistrique can process convexity concave, make again dynamic and hydrostatic bearing regulate, improve grinding accuracy.
Purposes of the present invention: this high speed and precision roll bistrique, as the core component of a roll grinder, rotates grinding roller by emery wheel.
Advantage of the present invention:
(1) bearing on main shaft have employed dynamic and hydrostatic bearing, can be applicable to grinding speed and reaches the roll dressing of 80m/s high speed.What is more important, the dynamic pressure oil recess structure of this bearing is adjustable, not only extends the range of application of bistrique, but also improves the machining accuracy of bistrique.
(2) be equipped with eccentric bushing and Zhong Gao mechanism, thus grinding wheel spindle obtains convergence or recesses the motion of workpiece, realize convexity (recessed) grinding.
(3) all bearings all adopt filmatic bearing, and the ability withstood shocks of main shaft is strengthened, and bistrique stability is high, and grinding accuracy is high.
Accompanying drawing explanation
Fig. 1 is roll bistrique profile of the present invention;
Fig. 2 attempts after the internal structure of hiding casing;
Fig. 3 is the internal structure oblique view of hiding casing;
Fig. 4 is the grinding wheel head structure schematic diagram of existing domestic common roll grinding machine;
Fig. 5 is the appearance figure front of roll bistrique of the present invention;
Fig. 6 is the appearance figure back side of roll bistrique of the present invention.
Accompanying drawing 1-3 description of symbols: 1-belt pulley, 2-deep groove ball bearing, 3-main shaft, 4-dynamic and hydrostatic bearing, 5-eccentric bushing, 6-hydrodynamic thrust bearing left cover, 7-hydrodynamic thrust bearing right cover, 8-flow controller, 9-casing, 10-end cap, 11-emery wheel, the left chuck of 12-emery wheel, the right chuck of 13-emery wheel, 14-hex nut, 15-motor, 16-shift fork, 17-groove one, 18-groove two, the rear end of 19-casing, the leading portion of 20-casing, 21-ball-screw, 22-worm gear, 23-worm screw, 32 nuts, 33 adapter sleeves, 34 unloading sleeves.
Accompanying drawing 4 description of symbols: 24-belt pulley, 25-main shaft, 26-flow controller, 27-lathe bed, 28-rear bearing, 29-eccentric bushing, 30-fore bearing, 31-emery wheel.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further illustrated.
First see the prior art that Fig. 4 shows, the grinding wheel head structure figure of its to be a kind of grinding speed of production be common roll grinding machine of 45m/s, it mainly comprises belt pulley 24, main shaft 25, flow controller 26, lathe bed 27, eccentric bushing 29, emery wheel 31 and two pure hydrostatic bearings.The grinding speed of this bistrique is maximum can only reach 45m/s.Its main shaft 25 is supported by former and later two pure hydrostatic bearings (fore bearing 30 and rear bearing 28), and the pressure regulation of front and back bearings oil pocket is realized by capillary restrictor 26.In order to realize the grinding of convexity or middle concave surface, this bistrique have employed a Ge Zhonggao mechanism and rotates to drive eccentric bushing.
See Fig. 1 again, a kind of structure of what Fig. 1 showed the is bistrique for grinding roller after the present invention manufactures, as can be seen from the figure, this device of the present invention forms primarily of emery wheel 11, belt pulley 1, main shaft 3, casing 9, dynamic and hydrostatic bearing 4, flow controller 8 and eccentric bushing 5, main shaft 3 is arranged in eccentric bushing 5, on the both sides of eccentric bushing 5, dynamic and hydrostatic bearing 4 is installed, eccentric bushing 5 is set with casing 9, at main shaft 3 leading portion, the right chuck 13 of emery wheel is installed, emery wheel 11 installed by the right chuck 13 of emery wheel, in the rear end of main shaft 3, belt pulley 1 is installed.Fig. 5 and Fig. 6 illustrates the appearance of this bistrique.
It is implemented like this: belt drive belt pulley 1 rotates, because belt pulley 1 and main shaft 3 link together by adapter sleeve 33 tightly, so main shaft 3 also can along with belt pulley 1 together high-speed rotation.Main shaft 3 high-speed rotation is connected by grinding wheel chuck (the left chuck of emery wheel 12 chuck 13 right with emery wheel), drive emery wheel 11 High Rotation Speed, makes emery wheel 11 can grinding work piece.Because bistrique is high speed, high-precision grinding roll for this reason, general bearing cannot meet the demands, so the bearing be arranged on main shaft 3 is dynamic and hydrostatic bearing 4, hybrid hydrodynamic oil film journal bearing has the advantage of hydrodynamic bearing and hydrostatic bearing concurrently, and it is large to have bearing capacity, bearing rigidity is high, the feature that rotating speed is high.Filmatic bearing needs supporting oil supply system, and flow controller 8 provides lubricating oil by oil pipe to filmatic bearing.In order to realize convexity concave, eccentric bushing 5 devises Zhong Gao mechanism.Explain various piece in detail below:
Pulley section: eccentric bushing 5 fixes a unloading sleeve 34, unloading sleeve 34 is installed deep groove ball bearing 2, belt pulley 10 is enclosed within outside deep groove ball bearing 2, pulling force on belt pulley 1 is supported by unloading sleeve, on main shaft 3 rear axle, cover has adapter sleeve 33, adapter sleeve 33 is fixed by pin and belt pulley 1, and adapter sleeve 33 carries out axial restraint by nut 32, and adapter sleeve 33 is fixed on main shaft 3 by interference fit for taper sheath.
Emery wheel part: the fixing of emery wheel 11 has mainly been clamped by the left chuck of emery wheel 12 and the right chuck 13 of emery wheel, grinding wheel chuck is connected on main shaft 3 by interference fit again, so main shaft 3 rotates just can drive emery wheel 11 high-speed rotation by the left chuck of emery wheel 12 and the right chuck 13 of emery wheel simultaneously.
Bearing portions: because this roll bistrique orientates grinding speed as 80m/s, grinding accuracy orientates micron order as, so ensure the stability of bistrique work and accuracy extremely important, the present invention design in from following several in ensure: first, main shaft 3 has been installed former and later two dynamic and hydrostatic bearings 4, dynamic and hydrostatic bearing 4 is different from general oil film static pressure bearing, Hydrodynamic and-static Bearing combines the advantage of hydrodynamic bearing and hydrostatic bearing, when starting and stop, its bearing capacity is provided by static pressure chamber, effectively can prevent the frictional dissipation of bearing.In running, the dynamic pressure effect produced main shaft by dynamic pressure cavity, substantially increases the bearing capacity of bearing.Compared with pure hydrodynamic bearing, owing to there is static pressure chamber, thus start and braking time avoid dry friction between axle and bearing shell because there is static pressure; Compared with pure hydrostatic bearing, owing to make use of dynamic pressure effect, thus improve bearing capacity and the rigidity of bearing, reduce the power consumption of oil supply system.High-speed Hydrostatic Journal has the outstanding advantages such as wearing and tearing are little, dynamic characteristic is good simultaneously, therefore uses dynamic and hydrostatic bearing 4 that main shaft 3 is obtained in the precision of radial direction here and ensures to greatest extent.Secondly, eccentric bushing 5 is arranged on inner, the hydrodynamic thrust bearing left cover 6 contacted with main shaft 3 and hydrodynamic thrust bearing right cover 7.The principle of hydrodynamic thrust bearing is that bearing (ball) cover (hydrodynamic thrust bearing left cover 6 and hydrodynamic thrust bearing right cover 7) has an annular oil groove, and lubricating oil to be entered oil groove by oilhole, and form oil film, what oil film can be stable prevents the left and right of main shaft 3 from trembleing.Hydrodynamic thrust bearing main feature is that confficient of static friction is minimum, bearing capacity high and and rotating speed have nothing to do, the detent torque of rotating disk is little, and the life-span is long, it is hereby ensured the present invention axis precision accuracy.Further, in the contact position of eccentric bushing 5 and casing 9, the present invention also uses hydrostatic bearing to avoid both excessive frictions and causes precise decreasing.
Middle high mechanism section: as shown in Figure 2, motor 15 rotates and drives worm screw 14 to rotate, worm screw 14 connects worm gear 13, transmission direction is converted, the rotation of worm gear 13 drives moving up and down of ball-screw 17, thus by shift fork 16, eccentric bushing 5 being rotated, such fine setting makes bistrique can process convexity concave.
Eccentric bushing 5 part: as shown in Figure 3, in order to improve the scope of application of bistrique, the dynamic and hydrostatic bearing 4 with governor motion is devised especially to adapt to the present invention of unequally loaded needs, the position of the forward and backward adjustment end cap of dynamic and hydrostatic bearing 4 determines the size and shape of 8 wedge shape dynamic pressure cavity, screw by regulating the screw thread pair between they and bearing holder (housing, cover) the size that position can regulate bearing deformation, thus the object of the size and shape regulating a wedge shape dynamic pressure cavity can be reached.In order to reach the object regulating bearing, eccentric bushing 5 has been opened two grooves, groove 1 and groove 2 18, spanner can deeply be entered easily, make it can regulate the end cap of two dynamic and hydrostatic bearings 4 in eccentric bushing 5 inside, directly allow the end cap of dynamic and hydrostatic bearing 4 be exposed to outside in rear end 19 place the present invention of casing, can directly regulate.Specially on casing 9 end cap, devise the groove that can be goed deep into spanner in leading portion 20 place the present invention of casing, so just can ensure that the adjustability of bearing, ensure machining accuracy and stability.
Certainly, more than just embody rule example of the present invention, the technical scheme that the present invention also has other embodiment, all employings to be equal to replacement or equivalent transformation to be formed, all drops within protection domain of the presently claimed invention.
Claims (7)
1. the structure of a high speed and precision roll bistrique, it is characterized in that: it is by emery wheel (11), belt pulley (1), main shaft (3), casing (9), dynamic and hydrostatic bearing (4), flow controller (8) and eccentric bushing (5) composition, wherein, main shaft (3) is arranged in eccentric bushing (5), on the both sides of eccentric bushing (5), dynamic and hydrostatic bearing (4) is installed, eccentric bushing (5) is set with casing (9), at main shaft leading portion, the right chuck of emery wheel (13) is installed, the right chuck of emery wheel (13) is installed emery wheel (11), eccentric bushing (5) is equipped with unloading sleeve (34), deep groove ball bearing (2) unloading sleeve (34) is equipped with, belt pulley (1) is contained on deep groove ball bearing (2).
2. the structure of high speed and precision roll bistrique according to claim 1, it is characterized in that: belt pulley (10) is enclosed within deep groove ball bearing (2) outside, pulling force on belt pulley (1) is supported by unloading sleeve (34), on main shaft (3) rear axle, cover has adapter sleeve (33), adapter sleeve (33) is fixed by pin and belt pulley (1), adapter sleeve (33) carries out axial restraint by nut (32), and adapter sleeve (33) is fixed on main shaft (3) by interference fit for taper sheath.
3. the structure of high speed and precision roll bistrique according to claim 1, it is characterized in that: having been clamped by the left chuck of emery wheel (12) and the right chuck of emery wheel (13) of emery wheel (11), the left chuck of emery wheel (12) and the right chuck of emery wheel (13) are connected on main shaft (3) by interference fit.
4. the structure of high speed and precision roll bistrique according to claim 1, is characterized in that: be provided with the hydrodynamic thrust bearing left cover (6) contacted with main shaft (3) and hydrodynamic thrust bearing right cover (7) in eccentric bushing (5) inside; Have employed hydrostatic bearing to avoid both excessive frictions in the contact position of eccentric bushing (5) and casing (9) and cause precise decreasing.
5. the structure of high speed and precision roll bistrique according to claim 1, it is characterized in that: it is also provided with Zhong Gao mechanism, Zhong Gao mechanism comprises motor (15), worm screw (14), turbine (13), ball-screw (17) and shift fork (16), wherein, motor (15) rotates and drives worm screw (14) to rotate, worm screw (14) connects worm gear (13) makes transmission direction convert, the rotation of worm gear (13) drives moving up and down of ball-screw (17), thus by shift fork (16), eccentric bushing (5) is rotated.
6. the structure of high speed and precision roll bistrique according to claim 1, is characterized in that: the dynamic and hydrostatic bearing (4) of eccentric bushing (5) inner both sides is provided with bearing (ball) cover; Eccentric bushing (5) being opened two grooves, groove one (17) and groove two (18), having regulated at two inner dynamic and hydrostatic bearing end caps of eccentric bushing (5) for using spanner; Go up at rear end (19) place unloading sleeve (34) of casing and be on housing plate at the leading portion (20) of casing and devise two grooves that can go deep into spanner ensure that the adjustability of bearing.
7. a manufacture method for the structure of high speed and precision roll bistrique, is characterized in that: all adopt oil film to contact on all bearings; Bearing on main shaft adopts dynamic and hydrostatic bearing; Manufacturing eccentric bushing structure makes two sections, the front and back of former and later two dynamic and hydrostatic bearings carry out adjusting elasticity; The structure of assembling eccentric bushing and Zhong Gao mechanism, makes grinding wheel spindle obtain convergence or recesses the motion of workpiece, making bistrique can process convexity concave, making again dynamic and hydrostatic bearing regulate, and improves grinding accuracy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839247.7A CN105328567A (en) | 2015-11-27 | 2015-11-27 | Structure of adjustable high-speed precise roller grinding head and manufacturing method of structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839247.7A CN105328567A (en) | 2015-11-27 | 2015-11-27 | Structure of adjustable high-speed precise roller grinding head and manufacturing method of structure |
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| Publication Number | Publication Date |
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| CN105328567A true CN105328567A (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510839247.7A Pending CN105328567A (en) | 2015-11-27 | 2015-11-27 | Structure of adjustable high-speed precise roller grinding head and manufacturing method of structure |
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| CN (1) | CN105328567A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107433521A (en) * | 2017-08-07 | 2017-12-05 | 贵州大学 | The Testing Platform of high speed and precision roll bistrique |
| CN116372806A (en) * | 2023-06-07 | 2023-07-04 | 华辰精密装备（昆山）股份有限公司 | Grinding wheel variable angle adjusting device, adjusting method and electric spindle grinding system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116372806A (en) * | 2023-06-07 | 2023-07-04 | 华辰精密装备（昆山）股份有限公司 | Grinding wheel variable angle adjusting device, adjusting method and electric spindle grinding system |
| CN116372806B (en) * | 2023-06-07 | 2023-08-29 | 华辰精密装备（昆山）股份有限公司 | Grinding wheel variable angle adjusting device, adjusting method and electric spindle grinding system |
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Application publication date: 20160217 |