CN108453626A - A kind of grinding small roller and with the self-acting grinding machine application method of repairing type dressing grinding wheel - Google Patents
A kind of grinding small roller and with the self-acting grinding machine application method of repairing type dressing grinding wheel Download PDFInfo
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- CN108453626A CN108453626A CN201810266121.9A CN201810266121A CN108453626A CN 108453626 A CN108453626 A CN 108453626A CN 201810266121 A CN201810266121 A CN 201810266121A CN 108453626 A CN108453626 A CN 108453626A
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- wheel
- dressing
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- grinding
- grinding wheel
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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
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
- B24B53/07—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels by means of forming tools having a shape complementary to that to be produced, e.g. blocks, profile rolls
-
- 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
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/12—Dressing tools; Holders therefor
- B24B53/14—Dressing tools equipped with rotary rollers or cutters; Holders therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
A kind of grinding small roller and with the self-acting grinding machine application method of repairing type dressing grinding wheel, self-acting grinding machine includes lathe bed, marble countertop, bottom plate, graphite skateboard driving device, graphite wheel drive unit, grinding wheel unit, dressing copper ring device, vertical dressing skate apparatus, vertical dressing driving device, electric main shaft device, guide wheel cross feed device, guide wheel driver, wheel device, small roller, graphite wheel sharpening device and gusset, the present invention makes small roller can on-line amending grinding wheel while grinding by self-acting grinding machine, it can also electrolytic in-process dressing grinding wheel, which improves the grinding-shaping precision of small roller, and grinding efficiency is greatly improved and at low cost, since small roller grinding dimensional uniformity so that stable quality is reliable well, with adjustment, installation, it safeguards, feature easy to use.
Description
Technical field
The invention belongs to bearing small roller grinding machine technical field, specifically a kind of grinding small roller and with repairing type
The self-acting grinding machine application method of dressing grinding wheel.
Background technology
Generally using perforative processing method is not in the mood for, not being in the mood for perforative processing method has for the grinding of bearing small roller convexity
Advantage high in machining efficiency, the method for forming crown curve are generation methods, protuberance shape and convexity amount depend on roller posture,
Through track and stone facial contour shape.
Although centerless grinding method for processing production efficiency is high, automation and mass production easy to implement, it is processed
Precision depends critically upon machine tool mechanical structure and precision, still remains variation, the workpiece centre linear motion of workpiece centre position
The unstability and grinding wheel and guide wheel contacted with the error of movement velocity, supporting plate working face with the error of grinding wheel axis, workpiece
The problems such as abrasion of equal components itself, the strong influence improvement of machining accuracy and consistency.Therefore existing centerless external cylindrical
Grinding technique and lathe have been difficult to meet the requirement of technology in the market, in process principle, grinding machine structure design and processing technology
All it is badly in need of further further investigation and upgrading.
Invention content
For the above situation, the self-acting grinding machine use the present invention provides a kind of grinding small roller and with repairing type dressing grinding wheel
Method, the self-acting grinding machine use a kind of novel centerless grinding bearing small roller, and small roller can while grinding
On-line amending grinding wheel, can also electrolytic in-process dressing grinding wheel, which improves the grinding-shaping precision of small roller, and be ground
Efficiency is greatly improved high and at low cost, since small roller grinding dimensional uniformity so that stable quality is reliable well, has adjustment, peace
Dress is safeguarded, feature easy to use.
For achieving the above object, the present invention adopts the following technical scheme that:
A kind of grinding small roller and with the self-acting grinding machine application method of repairing type dressing grinding wheel, self-acting grinding machine includes lathe bed, marble
Table top, bottom plate, graphite skateboard driving device, graphite wheel drive unit, grinding wheel unit, dressing copper ring device, vertical dressing are slided
Panel assembly, vertical dressing driving device, electric main shaft device, guide wheel are horizontal
To feed arrangement, guide wheel driver, wheel device, small roller, graphite wheel sharpening device and gusset, wherein graphite wheel
Slide board drive device, which contains graphite wheel, fixes slide unit plate, the first stepper motor, motor installation bent plate, the first ball-screw, first
Guide rail, bearing block, shaft coupling and the second guide rail, graphite wheel drive unit contain graphite wheel, washer, graphite wheel shaft, nut, lip
Sealing, gland before graphite wheel shaft bearing sleeve, graphite wheel bucket folder upper cover, rolling bearing, graphite wheel shaft bearing sleeve rear pressing cover, locking nut,
Graphite wheel bucket folder, graphite skidding platen, the first sliding block, the first feed screw nut, graphite feed screw nut seat, insulation board, graphite wheel shaft
Bearing sleeve, motor support plate, first servo motor, graphite turbin generator shaft pulley and belt, grinding wheel unit contain insulation board, grinding wheel branch
Frame, grinding wheel, grinding wheel gland, grinding wheel locking nut, grinding wheel tapered sleeve, grinding wheel spindle, grinding wheel spindle terminal pad and grinding wheel spindle holder
Upper cover, dressing copper ring device contain dressing copper ring, dressing copper ring extension bar, dressing copper ring strip of paper used for sealing and elbow, and vertical dressing 12.4 is slided
Panel assembly contains bakelite plate, dressing slide plate, dressing feed screw nut seat, the second feed screw nut and the second sliding block, vertical dressing driving
Device contains the second ball-screw, lead screw shaft bearings, shaft coupling, electric machine support, the second stepper motor, grinding wheel dressing pedestal and
Three guide rails, electric main shaft device contain electro spindle terminal pad, electro spindle, electric spindle support upper cover and electric spindle support, and guide wheel is lateral
Feed arrangement contains fixed slide unit plate, air cylinder support, cylinder and the 4th guide rail, and guide wheel driver contains guide wheel, guide wheel shaft, leads
Wheel support foreboard, motor upper adjustment plate, motor side adjustment plate, wheel bracket back plate, the second servo motor, cylinder connecting plate, cunning
Plate, fine motion slide plate, side plate adjusting screw, driving wheel, motor mounting plate, upper plate adjusting screw and third sliding block, wheel device
Contain blade, blade containing support wheel pedestal, adjustment plate, support wheel support, support wheel and support wheel shaft, graphite wheel sharpening device
Clamping plate, blade slide plate, graphite wheel dressing guide rail, graphite wheel dressing leading screw, graphite wheel dressing bearing block, graphite wheel dressing shaft coupling
Device, graphite wheel dressing electric machine support, graphite wheel dressing motor, graphite wheel dressing seat, graphite wheel dressing feed screw nut, graphite wheel are repaiied
Sharp nut seat and graphite wheel dressing sliding block, the small roller abrasive grinding wheel that self-acting grinding machine uses use cubic boron nitride abrasive wheel, will stand
Square boron nitride grinding wheel is referred to as grinding wheel, contains metallic bond in grinding wheel, it is characterized in that：
Marble countertop is fixedly connected on lathe bed and eight gussets by being fixed on lathe bed adjust marble countertop in bed
Left and right with it, front and back position, bottom plate are fixedly connected on marble countertop, and graphite skateboard driving device is fixedly connected
The left end of bottom plate, graphite wheel drive unit are connected in above graphite skateboard driving device, and grinding wheel unit is fixedly connected in bottom plate
Middle front is simultaneously located on the right side of graphite skateboard driving device, and dressing copper ring device, vertical dressing skate apparatus and vertical dressing drive
Dynamic device is fixedly connected above grinding wheel unit, electric main shaft device be fixedly connected bottom plate rear and positioned at grinding wheel unit just after
Side, guide wheel cross feed device are fixedly connected in bottom plate right end and positioned at the right side of grinding wheel unit, and guide wheel driver is connected in
Above guide wheel cross feed device, wheel device is fixedly connected on bottom plate and is filled positioned at grinding wheel unit and guide wheel traverse feed
Between setting, small roller is placed in wheel device, and graphite wheel sharpening device is fixedly connected on a left side for vertical dressing driving device
Side；
In graphite skateboard driving device, fixes slide unit plate with reeded graphite wheel and be fixedly connected in the left end of bottom plate, electricity
Machine installation bent plate is fixedly connected and fixes the left side of slide unit plate in graphite wheel, and the first stepper motor is coupled, and to be fixed on motor installation curved
The output shaft of the left end of plate, the first stepper motor is coupled by shaft coupling with the first ball-screw, is covered on the first ball-screw
It is connected to bearing block, bearing block, which is fixedly connected, to be fixed in graphite wheel in groove intermediate on slide unit plate, the first stepper motor driving the
One ball-screw rotates, and the second guide rail and the first guide rail are fixedly connected fix the front and rear sides of slide unit plate in graphite wheel respectively；
In graphite wheel drive unit, graphite wheel is connected and fixed by washer and nut in graphite axle ends, graphite wheel shaft
Middle part is designed as belt sheave structure, and the connection of graphite wheel shaft rear end is there are four rolling bearing and is locked with locking nut, rolling bearing
It is connected in inside graphite wheel shaft bearing sleeve, graphite wheel shaft bearing sleeve presss from both sides upper cover by graphite wheel bucket and graphite wheel bucket is gripped and is connected in
The gland in their endoporus and before graphite wheel shaft bearing sleeve front end is fixedly connected graphite wheel shaft bearing sleeve, is pressed before graphite wheel shaft bearing sleeve
Lid and couple lip packing between graphite wheel shaft, is fixedly connected graphite wheel shaft bearing sleeve rear pressing cover in graphite wheel shaft bearing sleeve rear end, stone
Ink wheel bucket folder is connected and fixed by insulation board in the front end of graphite skidding platen, and the left end of graphite skidding platen is fixedly connected motor
Support plate, motor support plate rear are fixedly connected first servo motor, and the output shaft of first servo motor passes through key and graphite turbin generator
Shaft pulley couples, and belt, graphite wheel slide unit are installed between the belt sheave structure in the middle part of graphite turbin generator shaft pulley and graphite wheel shaft
Be fixedly connected graphite feed screw nut seat below the right side of plate, and the first feed screw nut is fixedly connected below graphite feed screw nut seat
Hole in, the first feed screw nut and the first ball-screw of graphite skateboard driving device screw, below graphite skidding platen
Both ends are fixedly connected two the first sliding blocks, two the first sliding blocks the second guide rail and first with graphite skateboard driving device respectively
Guide rail is connected, and so that graphite wheel is rotated by first servo motor → graphite turbin generator shaft pulley → belt → graphite wheel shaft rotation,
The ball-screw of first stepper motor → first, which rotates the → the first feed screw nut, makes graphite skidding platen move left and right；
In grinding wheel unit, grinding wheel is sleeved in the outer rim of grinding wheel tapered sleeve and is coupled with grinding wheel tapered sleeve by grinding wheel gland, grinding wheel
The inner conical surface of tapered sleeve couples with the cooperation of the male cone (strobilus masculinus) on grinding wheel spindle head and is fixed with grinding wheel locking nut, and grinding wheel spindle is sleeved on
In bearing hole among emery wheel bracket and grinding wheel spindle holder upper cover, emery wheel bracket is fixedly connected by insulation board in bottom plate
On, adjusting the position of grinding wheel can ensure that grinding wheel center is concordant with the same high and front surface of two-wheeled in left side graphite wheel center, sand
The tail portion for taking turns main shaft couples grinding wheel spindle terminal pad；
In dressing copper ring device, dressing copper ring extension bar is fixedly connected on dressing copper ring, and dressing copper ring strip of paper used for sealing is fixedly connected
Dressing copper ring rear, elbow are connected in above dressing copper ring strip of paper used for sealing, and electrolyte injects the inner cavity of dressing copper ring strip of paper used for sealing again by elbow
It flows into the inner cavity of dressing copper ring and is sprayed from the spout on the inner ring surface of dressing copper ring；
In vertical dressing skate apparatus, bakelite plate be fixedly connected the front of dressing slide plate and with repairing in dressing copper ring device
Sharp copper ring extension bar connection, dressing feed screw nut seat are fixedly connected at the upper end rear of dressing slide plate, and the second feed screw nut is connected in
In the hole of dressing feed screw nut seat, be fixedly connected the second sliding block at left and right sides of the rear of dressing slide plate；
In vertical dressing driving device, grinding wheel dressing pedestal is fixedly connected on grinding wheel spindle holder on lid, and third guide rail is solid
Surely it is connected in the left and right sides of grinding wheel dressing pedestal, electric machine support is fixedly connected in the upper end of grinding wheel dressing pedestal, the second stepping
Motor is connected in the top of electric machine support and is coupled with the second ball-screw by shaft coupling, the upper end suit of the second ball-screw
In the bearing hole of lead screw shaft bearings, lead screw shaft bearings are fixedly connected on grinding wheel dressing pedestal, in vertical dressing skate apparatus
The second feed screw nut screwed with the second ball-screw, the ball-screw of the second stepper motor → second rotates the → the second feed screw nut
→ dressing feed screw nut seat → dressing slide plate → bakelite plate → dressing copper ring extension bar makes dressing copper ring move up and down, to adjust dressing
Gap between copper ring and grinding wheel meets the gap condition for being electrolysed online dressing；
In electric main shaft device, electro spindle is connected in electric spindle support upper cover and electric spindle support is formed by endoporus, and electricity is main
Bracing strut is fixedly connected on bottom plate and positioned at the rear of grinding wheel unit, and electro spindle front end is fixedly connected electro spindle terminal pad, electricity
The grinding wheel spindle terminal pad flexible connected of spindle coupling disc and grinding wheel unit, electro spindle → grinding wheel spindle make grinding wheel rotate；
In guide wheel cross feed device, fixed slide unit plate is fixedly connected on bottom plate, and two article of the 4th guide rail is fixedly connected respectively
In rear and front end groove above fixed slide unit plate, air cylinder support is fixedly connected in the right end of fixed slide unit plate, and cylinder fixes connection
It is connected on air cylinder support；
In guide wheel driver, third sliding block be fixedly connected the front and rear sides below slide plate and with guide wheel cross feed device
In two the 4th guide rails be connected, fine motion slide plate is fixedly connected on slide plate, wheel bracket foreboard and wheel bracket back plate point
The front and rear sides not being fixedly connected above fine motion slide plate, guide wheel are sleeved among guide wheel shaft, and guide wheel shaft is connected in wheel bracket
In foreboard and the upper left supported hole of wheel bracket back plate, driving wheel is located at the right of guide wheel and 2-3mm on the upper side, driving wheel connection
On the output shaft of the second servo motor, the second servo motor is fixedly connected by motor mounting plate in wheel bracket back plate
Rear, motor upper adjustment plate are fixedly connected in the top of wheel bracket foreboard and wheel bracket back plate, and upper plate adjusting screw is spun on
In the screw hole of motor upper adjustment plate and its head withstands on the upper end of motor mounting plate, pass through and rotate the fine-tuning electricity of upper plate adjusting screw
The upper and lower position of machine mounting plate, motor side adjustment plate are fixedly connected in the right side of wheel bracket foreboard and wheel bracket back plate, side
Plate adjusting screw is spun in the screw hole of motor side adjustment plate and its head withstands on the right end of motor mounting plate, passes through rotating side panel tune
The left and right position of the whole fine-tuning motor mounting plate of screw, the second servo motor drives driving wheel rotation, due to driving wheel and guide wheel
It is tangent, therefore driving wheel drives guide wheel to rotate by frictional force, cylinder connecting plate is fixedly connected in the right side of slide plate and and guide wheel
The extension bar of cylinder in cross feed device is connected, and the extended and retracted drive guide wheel of cylinder extension bar moves left and right；
In wheel device, support wheel pedestal is fixedly connected on bottom plate, and support wheel support is fixedly connected by adjusting plate
The upper right side of support wheel pedestal, support wheel are sleeved among support wheel shaft, and support wheel shaft both ends are connected in before and after support wheel support
In the supported hole at both ends；
In graphite wheel sharpening device, graphite wheel dressing seat is fixedly connected in the left side of grinding wheel dressing pedestal, and blade is by cutting blade clip
Plate is fixed on blade slide plate, and the front and rear sides of blade slide plate right are fixedly connected two graphite wheel dressing sliding blocks, two graphite
Wheel dressing sliding block be connected with the graphite wheel dressing guide rail of front and rear sides on graphite wheel dressing seat that is fixedly connected, blade slide plate it is upper
The intermediate graphite wheel dressing nut seat that is fixedly connected in end, graphite wheel dressing feed screw nut are sleeved on the endoporus of graphite wheel dressing nut seat
In and be connected with graphite wheel dressing leading screw, graphite wheel dressing leading screw upper end is sleeved on the bearing hole of graphite wheel dressing bearing block
Interior, graphite wheel dressing bearing block is fixedly connected on graphite wheel dressing seat, and graphite wheel dressing leading screw upper end passes through graphite wheel dressing
The output shaft of shaft coupling and graphite wheel dressing motor is connected, and graphite wheel dressing motor is fixedly connected in graphite wheel dressing electric machine support
Top, on graphite wheel dressing motor → graphite wheel dressing leading screw → graphite wheel dressing feed screw nut → blade slide plate band cutting blade
Lower movement；
The outer rim of grinding wheel and guide wheel is first accomplished to the profile opposite with small roller profile, i.e. one side of small roller convexity shape face before grinding
Face constitutes a pair of of conjugate surface with stone face, on the other hand constitutes a pair of of conjugate surface with guide wheel working face again, and cylinder drives
Dynamic guide wheel F.F. is simultaneously tangent with small roller, and small roller is put in the gap again when making between guide wheel and grinding wheel with certain interval
Between and on the support wheel, adjustment support wheel height keeps the center of support small roller consistent with grinding wheel centre-height, and adjustment is led
The position of wheel makes the centre-height of guide wheel be higher by 2-3mm than the center of small roller and the line of centres of grinding wheel, pays attention to increasing the height
Degree stress of its support wheel when being ground small roller will increase, and the deviation from circular from for being ground small roller tends to increase；The reduction height
It spends and small roller can be caused to beat in grinding area；
Electro spindle driving grinding wheel rotation when grinding makes grinding wheel and guide wheel rotate in same direction under motor → driving wheel → guide wheel rotation,
Guide wheel peripheral speed is controlled in 20-30m/min, and the peripheral speed of abrasive grinding wheel is 60-80 times of guide wheel, and small roller is in sand
It is passively rotated under the friction force effect of wheel and guide wheel, since there are larger linear velocities for the contact area of small roller and abrasive grinding wheel
The stability and high efficiency rate grinding of small roller can be realized to realize the grinding removal of its material in difference in cycles；
At the same time, the grinding wheel in above-mentioned grinding process will produce abrasion, blocking or adhesion, easily lead to grinding force increase
Or grinding temperature increases, and will produce influence to grinding quality, to make grinding wheel remain good grinding performance, it is necessary to timing
Online repairing type or online dressing are carried out to it；
Graphite wheel is first accomplished to the profile opposite with grinding wheel before online repairing type, grinding wheel is connected into anode and is connected into graphite wheel negative
Pole, grinding wheel and graphite wheel relatively rotate and to water-soluble emulsion is sprayed between grinding wheel and graphite wheel, pass through tune when online repairing type
Whole voltage and pulsewidth generate pulse spark electric discharge between grinding wheel and graphite wheel, and galvanic corrosion is carried out to the metallic bond on grinding wheel,
So that new abrasive grain is exposed metallic bond surface and form the profile required for grinding small roller, you can reaches the mesh of online repairing type
's；
When the increase of its surface abrasion contour shape error needs dressing after graphite wheel works a period of time, dressing blade is in graphite
It takes turns and is moved down under the drive of dressing motor, dressing is carried out to high-speed rotating graphite wheel, due to the contour shape of dressing blade
Accomplish the profile opposite with profile needed for graphite wheel, therefore the profile of graphite wheel can be accomplished required shape；
The inner ring surface of dressing copper ring electrode is first accomplished into the profile opposite with forming grinding wheel before online dressing, grinding wheel is connected into anode
And dressing copper ring is connected into cathode and adjusts the gap between dressing copper ring and grinding wheel, it is required that the gap is electrolysed online dressing
Gap condition, grinding wheel rotates and injects electrolyte between grinding wheel and dressing copper ring when dressing, is powering on just
Cell reaction occurs, metallic bond when pre- dressing starts in grinding wheel is detached under electrolysis, and simultaneous oxidation object is dumped
Product is in wheel face and forms the oxides-containing iron film layer with insulating property (properties), and oxide film layer to act on metal knot
Faradaic current on mixture, which continuously decreases, causes its electrolysis to weaken, to avoid excessive bleed and the dressing of metallic bond
Grinding wheel is to profile；It is worn as the abrasive grain for continuing and making its surface of wheel grinding small roller process generates, and this
When wheel face oxide film layer continue gradually to be removed again, cause the increase of Faradaic current again, electrolysis weight again
New to start and the metallic bond in grinding wheel is promoted to be detached from again, newly-generated oxide film layer makes to act on metal again
Faradaic current on bonding agent, which continuously decreases, causes its electrolysis to weaken, and avoids the excessive bleed of metallic bond again and repaiies
Sharp grinding wheel is to profile；Online dressing in cycles has remained that grinding wheel to profile, greatly improves small roller
High-efficiency grinding processing.
Due to using technical solution as described above, the present invention to generate following good effect：
1, the present invention is a kind of high-precision small roller self-acting grinding machine, and formed precision is high, efficient and at low cost, and stable quality can
It leans on, dimensional uniformity is good, has the characteristics that adjustment, installation, safeguards, is easy to use.
2, self-acting grinding machine of the invention uses a kind of novel centerless grinding method.In grinding, one side of small roller convexity shape face
Face constitutes a pair of of conjugate surface with stone face, on the other hand constitutes a pair of of conjugate surface with guide wheel working face again.This is high-precision
It includes grinding wheel, guide wheel, support wheel and small roller workpiece to spend small roller automatic grinding device mainly.When processing, small roller is placed on
On the support wheel of vertical direction support between grinding wheel and guide wheel, small roller is without thimble centering and support and outer with what is be ground
Circle itself is used as positioning datum.Grinding wheel and guide wheel rotate in same direction, and guide wheel peripheral speed is very low, are 20-30m/min, abrasive grinding wheel
Peripheral speed be 60-80 times of guide wheel.Small roller passively rotates under the friction force effect between grinding wheel, guide wheel, small roller
The grinding removal of its material is realized there are larger linear differential with the contact area of abrasive grinding wheel.In order to ensure small roller
The circularity of outer circle, small roller center is with grinding wheel center with high, line 2- of the guide wheel center higher than small roller axis and grinding wheel axis
3mm, increases that stress of the height then on support wheel increases and small roller deviation from circular from tends to increase, and reducing the height can then cause
Small roller grinding machine is beated in grinding area.
3, grinding wheel is driven by electro spindle, since electro spindle has higher rotating speed, grinding wheel can be made to have when being ground small roller
There is higher linear velocity, to ensure grinding efficiency, the precision and quality of small roller.
4, trimming device of the invention uses graphite electrode edm forming dressing method.First graphite wheel accomplished before finishing and
Grinding wheel is connected into anode and graphite wheel is connected into cathode by the opposite profile of forming grinding wheel, opposite with graphite wheel turn of grinding wheel when finishing
It is dynamic, to water-soluble emulsion is sprayed between grinding wheel and graphite wheel, generated between grinding wheel and graphite wheel by adjusting voltage and pulsewidth
Pulse spark discharges, and galvanic corrosion is carried out to the metallic bond on grinding wheel, so that new abrasive grain is exposed metallic bond surface and is formed
Certain projecting height, you can reach the purpose of integer, this mode formed precision is high, efficient and at low cost, after finishing
Grinding wheel has good grinding performance, improves the grinding accuracy and quality of small roller.
5, sharpening device of the invention is using the online dressing method of electrolysis.It first will be by the inner ring surface of dressing copper ring electrode before dressing
Accomplish the profile opposite with forming grinding wheel, grinding wheel is connected into anode and dressing copper ring electrode is connected into cathode, grinding wheel turns when dressing
It is dynamic, to injection electrolyte between grinding wheel and dressing copper ring and cell reaction occurs in the case that powering on, sand when pre- dressing starts
Metallic bond material in wheel is detached from grinding wheel due to electrolysis, while oxides-containing iron is stacked on wheel face and forms tool
There is the oxide film layer of insulating property (properties), oxide film layer to act on to be continuously decreased in conjunction with upper Faradaic current, is electrolysed
Declines can be to avoid the excessive bleed of metallic bond material.When carrying out grinding, wheel face abrasive grain is ground again
Damage, at the same time oxide film layer is also gradually removed, and the removal of oxide layer film layer causes Faradaic current to increase again, electrolysis
Dressing restarts, and repeating the above process makes grinding wheel obtain height of grain again.It can be achieved with stable high efficiency mill in cycles
Cut processing.
6, graphite wheel sharpening device of the invention is using molding dressing method, and before dressing, the contour shape of dressing blade is accomplished
The profile opposite with molded graphite wheel, when dressing, dressing blade moves down under the drive of stepper motor, to high-speed rotating
Graphite wheel carries out dressing.
Description of the drawings
Fig. 1 is the front view structure simplified schematic diagram of the present invention.
Fig. 2 is the plan structure simplified schematic diagram of Fig. 1.
Fig. 3 is the left view structure schematic diagram of Fig. 1.
Fig. 4 is the E-E section view partial structurtes simplified schematic diagrams of Fig. 1.
Fig. 5 is the D-D section view partial structurtes simplified schematic diagrams of Fig. 1.
Fig. 6 is the A-A section view partial structurtes simplified schematic diagrams of Fig. 1.
In above-mentioned figure：1- lathe beds；2- marble countertops；3- bottom plates；4- graphite skateboard driving devices；4.1- graphite wheels are solid
Determine slide unit plate；The first stepper motors of 4.2-；4.3- motors install bent plate；The first ball-screws of 4.4-；The first guide rails of 4.5-；4.6-
Bearing block；4.7- shaft coupling；The second guide rails of 4.8-；5- graphite wheel drive units；5.1- graphite wheels；5.2- washer；5.3- graphite
Wheel shaft；5.4- nut；5.5- lip packing；Gland before 5.6- graphite wheel shaft bearing sleeves；5.7- graphite wheel buckets press from both sides upper cover；5.8- rolling
Bearing；5.9- graphite wheel shaft bearing sleeve rear pressing cover；5.10- locking nut；5.11- graphite wheel buckets press from both sides；5.12- graphite skidding platens；
5.13- the first sliding block；5.14- the first feed screw nut；5.15- graphite feed screw nut seats；5.16- insulation board；5.17- graphite wheel shaft
Bearing sleeve；5.18- motor support plate；5.19- first servo motor；5.20- graphite turbin generator shaft pulley；5.21- belt；6- grinding wheels fill
It sets；6.1- insulation board；6.2- emery wheel bracket；6.3- grinding wheel；6.4- grinding wheel glands；6.5- grinding wheel locking nuts；6.6- grinding wheels are bored
Set；6.7- grinding wheel spindle；6.8- grinding wheel spindle terminal pads；6.9- grinding wheel spindle holder upper covers；7- dressing copper ring devices；7.1- repairing
Sharp copper ring；7.2- dressing copper ring extension bars；7.3- dressing copper ring strip of paper used for sealings；7.4- elbow；The vertical dressing skate apparatus of 8-；8.1- bakelite
Plate；8.2- dressing slide plates；8.3- dressing feed screw nut seats；The second feed screw nuts of 8.4-；The second sliding blocks of 8.5-；The vertical dressings of 9- drive
Dynamic device；The second ball-screws of 9.1-；9.2- lead screw shaft bearings；9.3- shaft coupling；9.4- electric machine support；9.5- the second stepping electricity
Machine；9.6- grinding wheel dressing pedestals；9.7- third guide rails；10- electric main shaft devices；10.1- electro spindle terminal pad；10.2- electro spindles；
10.3- electric spindle support upper cover；10.4- electric spindle supports；11- guide wheel cross feed devices；11.1- fixes slide unit plate；11.2-
Air cylinder support；11.3- cylinders；The 4th guide rails of 11.4-；12- guide wheel drivers；12.1- guide wheels；12.2- guide wheel shafts；12.3-
Wheel bracket foreboard；12.4- motor upper adjustment plate；12.5- motor side adjustment plate；12.6- wheel bracket back plate；12.7- second
Servo motor；12.8- cylinder connecting plate；12.9- slide plates；12.10- fine motion slide plate；12.11- side plate adjusting screw；12.12- drives
Driving wheel；12.13- motor mounting plates；12.14- upper plate adjusting screw；12.15- third sliding block；13- wheel devices；13.1- branch
Support wheel pedestal；13.2- adjustment plates；13.3- supporting wheel support；13.4- support wheels；13.5- supporting wheel shaft；14- small rollers；15-
Graphite wheel sharpening device；15.1- blades；15.2- blade clamping plate；15.3- blade slide plate；15.4- graphite wheel dressing guide rails；
15.5- graphite wheel dressing leading screws；15.6- graphite wheel dressing bearing blocks；15.7- graphite wheel dressing shaft couplings；15.8- graphite wheels are repaiied
Sharp electric machine support；15.9- graphite wheel dressing motors；15.10- graphite wheel dressing seats；15.11- graphite wheel dressing feed screw nuts；
15.12- graphite wheel dressing nut seats；15.13- graphite wheel dressing sliding blocks；16- gussets.
Specific implementation mode
The present invention is a kind of grinding small roller and with the self-acting grinding machine application method of repairing type dressing grinding wheel, passes through self-acting grinding machine
Make small roller while grinding can on-line amending grinding wheel, can also electrolytic in-process dressing grinding wheel, thus improve
The grinding-shaping precision of small roller, and grinding efficiency is greatly improved and at low cost, since small roller is ground dimensional uniformity
Well so that stable quality is reliable, has the characteristics that adjustment, installation, safeguard, is easy to use.
In conjunction with Fig. 1-6, High Precision Automatic grinding machine of the invention includes lathe bed 1, marble countertop 2, bottom plate 3, graphite skidding
Plate driving device 4, grinding wheel unit 6, dressing copper ring device 7, vertical dressing skate apparatus 8, vertical is repaiied graphite wheel drive unit 5
Sharp driving device 9, electric main shaft device 10, guide wheel cross feed device 11, guide wheel driver 12, wheel device 13, small rolling
Son 14, graphite wheel sharpening device 15, gusset 16.
In graphite skateboard driving device 4 slide unit plate 4.1, the first stepper motor 4.2, motor installation are fixed containing graphite wheel
Bent plate 4.3, the first ball-screw 4.4, the first guide rail 4.5, bearing block 4.6, shaft coupling 4.7, the second guide rail 4.8.
Contain graphite wheel 5.1, washer 5.2, graphite wheel shaft 5.3, nut 5.4, lip packing in graphite wheel drive unit 5
5.5, gland 5.6, graphite wheel bucket folder upper cover 5.7, rolling bearing 5.8, graphite wheel shaft bearing sleeve rear pressing cover before graphite wheel shaft bearing sleeve
5.9, locking nut 5.10, graphite wheel bucket folder 5.11, graphite skidding platen 5.12, the first sliding block 5.13, the first feed screw nut
5.14, graphite feed screw nut seat 5.15, insulation board 5.16, graphite wheel shaft bearing sleeve 5.17, motor support plate 5.18, first servo motor
5.19, graphite turbin generator shaft pulley 5.20, belt 5.21.
Contain insulation board 6.1, emery wheel bracket 6.2, grinding wheel 6.3, grinding wheel gland 6.4, grinding wheel locking nut in grinding wheel unit 6
6.5, grinding wheel tapered sleeve 6.6, grinding wheel spindle 6.7, grinding wheel spindle terminal pad 6.8, grinding wheel spindle holder upper cover 6.9.
Contain dressing copper ring 7.1, dressing copper ring extension bar 7.2, dressing copper ring strip of paper used for sealing 7.3, elbow in dressing copper ring device 7
7.4。
Contain bakelite plate 8.1, dressing slide plate 8.2, dressing feed screw nut seat 8.3, second in vertical dressing skate apparatus 8
Thick stick nut 8.4, the second sliding block 8.5.
Contain the second ball-screw 9.1, lead screw shaft bearings 9.2, shaft coupling 9.3, motor branch in vertical dressing driving device 9
Frame 9.4, the second stepper motor 9.5, grinding wheel dressing pedestal 9.6, third guide rail 9.7.
It is main containing electro spindle terminal pad 10.1, electro spindle 10.2, electric spindle support upper cover 10.3, electricity in electric main shaft device 10
Bracing strut 10.4.
Contain fixed slide unit plate 11.1, air cylinder support 11.2, cylinder 11.3, the 4th guide rail in guide wheel cross feed device 11
11.4。
Contain guide wheel 12.1, guide wheel shaft 12.2, wheel bracket foreboard 12.3, motor upper adjustment plate in guide wheel driver 12
12.4, motor side adjustment plate 12.5, wheel bracket back plate 12.6, the second servo motor 12.7, cylinder connecting plate 12.8, slide plate
12.9, fine motion slide plate 12.10, side plate adjusting screw 12.11, driving wheel 12.12, motor mounting plate 12.13, upper plate adjusting screw
12.14, third sliding block 12.15.
Contain support wheel pedestal 13.1, adjustment plate 13.2, support wheel support 13.3, support wheel in wheel device 13
13.4, wheel shaft 13.5 is supported.
It is led containing blade 15.1, blade clamping plate 15.2, blade slide plate 15.3, graphite wheel dressing in graphite wheel sharpening device 15
Rail 15.4, graphite wheel dressing leading screw 15.5, graphite wheel dressing bearing block 15.6, graphite wheel dressing shaft coupling 15.7, graphite wheel are repaiied
Sharp electric machine support 15.8, graphite wheel dressing motor 15.9, graphite wheel dressing seat 15.10, graphite wheel dressing feed screw nut 15.11,
Graphite wheel dressing nut seat 15.12 and graphite wheel dressing sliding block 15.13.
The structure of self-acting grinding machine of the present invention couples referring to the technical solution, does not repeat separately.
The outer rim of grinding wheel 6.3 and guide wheel 12.1 is first accomplished to the profile opposite with 14 profile of small roller before grinding, i.e., small rolling
Sub 14 convexity shape faces are on the one hand and 6.3 working face of grinding wheel constitutes a pair of of conjugate surface, on the other hand again with 12.1 working face of guide wheel
A pair of of conjugate surface is constituted, driving 12.1 F.F. of guide wheel of cylinder 11.3 is simultaneously tangent with small roller 14, makes guide wheel 12.1 and grinding wheel 6.3
Between have small roller 14 be put between the gap again when certain interval and on the support wheel 13.4, adjusts support wheel
13.4 height keep the center of support small roller 14 consistent with 6.3 centre-height of grinding wheel, and the position of adjustment guide wheel 12.1 makes guide wheel
12.1 centre-height is higher by 2-3mm than the center of small roller 14 and the line of centres of grinding wheel 6.3, notices that increasing this is highly grinding
The stress of its support wheel 13.4 will increase when cutting small roller 14, and the deviation from circular from of grinding small roller 14 tends to increase；The reduction should
Height spends and small roller 14 can be caused to beat in grinding area.
Electro spindle 10.2 drives grinding wheel 6.3 to rotate when grinding, in 12.1 turns of 12.7 → driving wheel of motor, 12.12 → guide wheel
Grinding wheel 6.3 and guide wheel 12.1 is set to rotate in same direction under dynamic, 12.1 peripheral speed of guide wheel is controlled in 20-30m/min, and abrasive grinding wheel
6.3 peripheral speed is 60-80 times of guide wheel 12.1, the quilt under the friction force effect of grinding wheel 6.3 and guide wheel 12.1 of small roller 14
Dynamic rotation, since there are larger linear differentials to realize its material for the contact area of small roller 14 and abrasive grinding wheel 6.3
Grinding removal, can be realized the stability and high efficiency rate grinding of small roller 14 in cycles.
At the same time, the grinding wheel 6.3 in above-mentioned grinding process will produce abrasion, blocking or adhesion, easily lead to mill
It cuts power increase or grinding temperature increases, influence will produce on grinding quality, to make grinding wheel 6.3 remain good grindability
It can, it is necessary to online repairing type or online dressing are periodically carried out to it：
Graphite wheel 5.1 is first accomplished to the profile opposite with grinding wheel 6.3 before online repairing type, by grinding wheel 6.3 be connected into anode and by graphite
Wheel 5.1 is connected into cathode, and grinding wheel 6.3 and graphite wheel 5.1 relatively rotate and between grinding wheel 6.3 and graphite wheel 5.1 when online repairing type
Water-soluble emulsion is sprayed into, generates pulse spark electric discharge between grinding wheel 6.3 and graphite wheel 5.1 by adjusting voltage and pulsewidth,
Galvanic corrosion is carried out to the metallic bond on grinding wheel 6.3, new abrasive grain is made to expose metallic bond surface and forms grinding small roller
Profile required for 14, you can reach the purpose of online repairing type.The formed precision of this online repairing type mode is high, it is efficient and at
This is low, and the grinding wheel 6.3 after repairing type has good grinding performance, greatly improves the grinding accuracy and quality of small roller 14.
When the increase of its surface abrasion contour shape error needs dressing after graphite wheel 5.1 works a period of time, dressing knife
Piece 15.1 moves down under the drive of graphite wheel dressing motor 15.9, and dressing is carried out to high-speed rotating graphite wheel 5.1, due to
The contour shape of dressing blade 15.1 has accomplished the profile opposite with profile needed for graphite wheel 5.1, therefore can be by graphite wheel 5.1
Profile accomplish required shape.
The inner ring surface of 7.1 electrode of dressing copper ring is first accomplished into the profile opposite with forming grinding wheel 6.3 before online dressing, by sand
Wheel 6.3 is connected into anode and dressing copper ring 7.1 is connected into cathode and adjusts the gap between dressing copper ring 7.1 and grinding wheel 6.3, institute
State gap and be electrolysed gap condition necessary to online dressing, when dressing the rotation of grinding wheel 6.3 and to grinding wheel 6.3 and dressing copper ring 7.1 it
Between inject electrolyte, in the case that powering on just occur cell reaction, metallic bond when pre- dressing starts in grinding wheel 6.3
It is detached under electrolysis, simultaneous oxidation object is stacked on 6.3 surface of grinding wheel and forms the iron content with insulating property (properties) and aoxidizes
Object film layer, oxide film layer, which to act on the Faradaic current on metallic bond and continuously decreases, causes its electrolysis to subtract
It is weak, to avoid metallic bond excessive bleed and dressing grinding wheel 6.3 to profile；As grinding wheel 6.3 is ground small roller
The abrasive grain that continues and make its surface of 14 processes generates abrasion, and at this time the oxide film layer on 6.3 surface of grinding wheel after
It is continuous to be gradually removed, cause the increase of Faradaic current, electrolysis to start again and promote the gold in grinding wheel 6.3 again again
Belong to bonding agent to be detached from, newly-generated oxide film layer makes the Faradaic current acted on metallic bond continuously decrease again
Cause its electrolysis to weaken, avoids the excessive bleed of metallic bond again and dressing grinding wheel 6.3 is to profile；Zhou Erfu
The online dressing to begin has remained that grinding wheel 6.3 to profile, greatly improves the high-efficiency grinding processing of small roller 14.
Claims (1)
1. a kind of grinding small roller and with the self-acting grinding machine application method of repairing type dressing grinding wheel, self-acting grinding machine includes lathe bed (1), big
Reason stone table top (2), bottom plate (3), graphite skateboard driving device (4), graphite wheel drive unit (5), grinding wheel unit (6), dressing
Copper ring device (7), vertical dressing skate apparatus (8), vertical dressing driving device (9), electric main shaft device (10), guide wheel laterally into
To device (11), guide wheel driver (12),
Wheel device (13), small roller (14), graphite wheel sharpening device (15) and gusset (16), wherein graphite skateboard drive
Device (4) fixes slide unit plate (4.1), the first stepper motor (4.2), motor installation bent plate (4.3), the first ball containing graphite wheel
Leading screw (4.4), the first guide rail (4.5), bearing block (4.6), shaft coupling (4.7) and the second guide rail (4.8), graphite wheel drive unit
(5) contain graphite wheel (5.1), washer (5.2), graphite wheel shaft (5.3), nut (5.4), lip packing (5.5), graphite wheel bearing
Gland (5.6), graphite wheel bucket folder upper cover (5.7), rolling bearing (5.8), graphite wheel shaft bearing sleeve rear pressing cover (5.9), locking before set
Nut (5.10), graphite wheel bucket folder (5.11), graphite skidding platen (5.12), the first sliding block (5.13), the first feed screw nut
(5.14), graphite feed screw nut seat (5.15), insulation board (5.16), graphite wheel shaft bearing sleeve (5.17), motor support plate (5.18),
One servo motor (5.19), graphite turbin generator shaft pulley (5.20) and belt (5.21), grinding wheel unit (6) contain insulation board
(6.1), emery wheel bracket (6.2), grinding wheel (6.3), grinding wheel gland (6.4), grinding wheel locking nut (6.5), grinding wheel tapered sleeve (6.6),
Grinding wheel spindle (6.7), grinding wheel spindle terminal pad (6.8) and grinding wheel spindle holder upper cover (6.9), dressing copper ring device (7) contain
Dressing copper ring (7.1), dressing copper ring extension bar (7.2), dressing copper ring strip of paper used for sealing (7.3) and elbow (7.4), vertical dressing skate apparatus
(8) contain bakelite plate (8.1), dressing slide plate (8.2), dressing feed screw nut seat (8.3), the second feed screw nut (8.4) and second
Sliding block (8.5), vertical dressing driving device (9) contain the second ball-screw (9.1), lead screw shaft bearings (9.2), shaft coupling
(9.3), electric machine support (9.4), the second stepper motor (9.5), grinding wheel dressing pedestal (9.6) and third guide rail (9.7), electro spindle
Device (10) contains electro spindle terminal pad (10.1), electro spindle (10.2), electric spindle support upper cover (10.3) and electric spindle support
(10.4), guide wheel cross feed device (11) contains fixed slide unit plate (11.1), air cylinder support (11.2), cylinder (11.3) and the
Four guide rails (11.4), guide wheel driver (12) containing guide wheel (12.1), guide wheel shaft (12.2), wheel bracket foreboard (12.3),
Motor upper adjustment plate (12.4), motor side adjustment plate (12.5), wheel bracket back plate (12.6), the second servo motor (12.7),
Cylinder connecting plate (12.8), slide plate (12.9), fine motion slide plate (12.10), side plate adjusting screw (12.11), driving wheel
(12.12), motor mounting plate (12.13), upper plate adjusting screw (12.14) and third sliding block (12.15), wheel device (13)
Contain support wheel pedestal (13.1), adjustment plate (13.2), support wheel support (13.3), support wheel (13.4) and support wheel shaft
(13.5), graphite wheel sharpening device (15) contains blade (15.1), blade clamping plate (15.2), blade slide plate (15.3), graphite wheel
Dressing guide rail (15.4), graphite wheel dressing leading screw (15.5), graphite wheel dressing bearing block (15.6), graphite wheel dressing shaft coupling
(15.7) graphite wheel dressing electric machine support (15.8), graphite wheel dressing motor (15.9), graphite wheel dressing seat (15.10), graphite
Take turns dressing feed screw nut (15.11), graphite wheel dressing nut seat (15.12) and graphite wheel dressing sliding block (15.13), self-acting grinding machine
The small roller abrasive grinding wheel used uses cubic boron nitride abrasive wheel, and cubic boron nitride abrasive wheel is referred to as grinding wheel (6.3), grinding wheel
(6.3) contain metallic bond in, it is characterized in that：
Marble countertop (2) is fixedly connected on lathe bed (1) and eight gussets (16) by being fixed on lathe bed (1) are adjusted greatly
Left and right of the reason stone table top (2) on lathe bed (1), front and back position, bottom plate (3) are fixedly connected on marble countertop (2), graphite
Skateboard driving device (4) is fixedly connected in the left end of bottom plate (3), and graphite wheel drive unit (5) is connected in the drive of graphite skateboard
Above dynamic device (4), grinding wheel unit (6) is fixedly connected in front of bottom plate (3) is middle and right positioned at graphite skateboard driving device (4)
Side, dressing copper ring device (7), vertical dressing skate apparatus (8) and vertical dressing driving device (9) are fixedly connected in grinding wheel unit
(6) top, electric main shaft device (10) are fixedly connected at bottom plate (3) rear and positioned at the dead astern of grinding wheel unit (6), and guide wheel is lateral
Feed arrangement (11) is fixedly connected in bottom plate (3) right end and positioned at the right side of grinding wheel unit (6), guide wheel driver (12) connection
Above guide wheel cross feed device (11), wheel device (13) is fixedly connected on bottom plate (3) and is located at grinding wheel unit (6)
Between guide wheel cross feed device (11), small roller (14) is placed in wheel device (13), graphite wheel sharpening device
(15) it is fixedly connected in the left side of vertical dressing driving device (9)；
In graphite skateboard driving device (4), fixes slide unit plate (4.1) with reeded graphite wheel and be fixedly connected in bottom plate
(3) left end, motor installation bent plate (4.3), which is fixedly connected, fixes the left side of slide unit plate (4.1), the first stepper motor in graphite wheel
(4.2) it is coupled the left end for being fixed on motor installation bent plate (4.3), the output shaft of the first stepper motor (4.2) passes through shaft coupling
(4.7) couple with the first ball-screw (4.4), bearing block (4.6), bearing block are socketed on the first ball-screw (4.4)
(4.6) it is fixedly connected and is fixed in groove intermediate on slide unit plate (4.1) in graphite wheel, the first stepper motor (4.2) driving first
Ball-screw (4.4) rotates, and the second guide rail (4.8) and the first guide rail (4.5) are fixedly connected fix slide unit plate in graphite wheel respectively
(4.1) front and rear sides；
In graphite wheel drive unit (5), graphite wheel (5.1) is connected and fixed by washer (5.2) and nut (5.4) in graphite wheel
Axis (5.3) end is designed as belt sheave structure in the middle part of graphite wheel shaft (5.3), and there are four rollings for the connection of graphite wheel shaft (5.3) rear end
Dynamic bearing (5.8) is simultaneously locked with locking nut (5.10), and rolling bearing (5.8) is connected in graphite wheel shaft bearing sleeve (5.17) inside,
Graphite wheel shaft bearing sleeve (5.17) is gripped by graphite wheel bucket folder upper cover (5.7) and graphite wheel bucket folder (5.11) and is connected in theirs
The gland (5.6) in endoporus and before graphite wheel shaft bearing sleeve (5.17) front end is fixedly connected graphite wheel shaft bearing sleeve, in graphite wheel bearing
Couple lip packing (5.5) between gland (5.6) and graphite wheel shaft (5.3) before set, it is solid in graphite wheel shaft bearing sleeve (5.17) rear end
Surely connection graphite wheel shaft bearing sleeve rear pressing cover (5.9), graphite wheel bucket folder (5.11) are connected and fixed by insulation board (5.16) in graphite
The front end of skidding platen (5.12), the left end of graphite skidding platen (5.12) are fixedly connected motor support plate (5.18), motor support plate
(5.18) rear is fixedly connected first servo motor (5.19), and the output shaft of first servo motor (5.19) passes through key and graphite wheel
Motor shaft pulley (5.20) couples, the belt sheave structure in the middle part of graphite turbin generator shaft pulley (5.20) and graphite wheel shaft (5.3) it
Between installation belt (5.21), be fixedly connected below the right side of graphite skidding platen (5.12) graphite feed screw nut seat (5.15),
First feed screw nut (5.14) is fixedly connected in the hole below graphite feed screw nut seat (5.15), the first feed screw nut (5.14)
It is screwed with the first ball-screw (4.4) of graphite skateboard driving device (4), both ends are solid below graphite skidding platen (5.12)
Surely couple two the first sliding blocks (5.13), two the first sliding blocks (5.13) respectively with graphite skateboard driving device (4) second
Guide rail (4.8) is connected with the first guide rail (4.5), by first servo motor (5.19) → graphite turbin generator shaft pulley (5.20) →
Belt (5.21) → graphite wheel shaft (5.3) rotation makes graphite wheel (5.1) rotate, the first stepper motor (4.2) → first ball wire
Thick stick (4.4), which rotates the → the first feed screw nut (5.14), makes graphite skidding platen (5.12) move left and right；
In grinding wheel unit (6), grinding wheel (6.3) be sleeved in the outer rim of grinding wheel tapered sleeve (6.6) and by grinding wheel gland (6.4) with
Grinding wheel tapered sleeve (6.6) couples, and the inner conical surface of grinding wheel tapered sleeve (6.6) couples simultaneously with the cooperation of the male cone (strobilus masculinus) on grinding wheel spindle (6.7) head
Fixed with grinding wheel locking nut (6.5), grinding wheel spindle (6.7) is sleeved on emery wheel bracket (6.2) and grinding wheel spindle holder upper cover
(6.9) in intermediate bearing hole, emery wheel bracket (6.2) is fixedly connected by insulation board (6.1) on bottom plate (3), adjusts sand
The position of wheel (6.3) can ensure that grinding wheel (6.3) center is flat with high and two-wheeled front surface with the left side graphite wheel (5.1) center
Together, the tail portion connection grinding wheel spindle terminal pad (6.8) of grinding wheel spindle (6.7)；
In dressing copper ring device (7), dressing copper ring extension bar (7.2) is fixedly connected on dressing copper ring (7.1), dressing copper ring envelope
Item (7.3) is fixedly connected at dressing copper ring (7.1) rear, and elbow (7.4) is connected in above dressing copper ring strip of paper used for sealing (7.3), electrolysis
Liquid by the inner cavity of elbow (7.4) injection dressing copper ring strip of paper used for sealing (7.3) flows into the inner cavity of dressing copper ring (7.1) and again from dressing copper ring
(7.1) spout on inner ring surface sprays；
In vertical dressing skate apparatus (8), bakelite plate (8.1) is fixedly connected in the front of dressing slide plate (8.2) and and dressing
Dressing copper ring extension bar (7.2) connection in copper ring device (7), dressing feed screw nut seat (8.3) are fixedly connected in dressing slide plate
(8.2) upper end rear, the second feed screw nut (8.4) are connected in the hole of dressing feed screw nut seat (8.3), dressing slide plate
(8.2) be fixedly connected the second sliding block (8.5) at left and right sides of rear；
In vertical dressing driving device (9), grinding wheel dressing pedestal (9.6) is fixedly connected in grinding wheel spindle holder upper cover (6.9)
On, third guide rail (9.7) is fixedly connected in the left and right sides of grinding wheel dressing pedestal (9.6), and electric machine support (9.4) is fixedly connected
The upper end of grinding wheel dressing pedestal (9.6), the second stepper motor (9.5) are connected in the top of electric machine support (9.4) and pass through shaft coupling
Device (9.3) couples with the second ball-screw (9.1), and the upper end of the second ball-screw (9.1) is sleeved on lead screw shaft bearings (9.2)
In bearing hole, lead screw shaft bearings (9.2) are fixedly connected on grinding wheel dressing pedestal (9.6), in vertical dressing skate apparatus (8)
Second feed screw nut (8.4) and the second ball-screw (9.1 screw), the second stepper motor (9.5) → second ball-screw (9.1)
The → the second feed screw nut of rotation (8.4) → dressing feed screw nut seat (8.3) → dressing slide plate (8.2) → bakelite plate (8.1) → is repaiied
Sharp copper ring extension bar (7.2) makes dressing copper ring (7.1) move up and down, between adjusting between dressing copper ring (7.1) and grinding wheel (6.3)
Gap is electrolysed the gap condition of online dressing to meet；
In electric main shaft device (10), electro spindle (10.2) is connected in electric spindle support upper cover (10.3) and electric spindle support
(10.4) it is formed by endoporus, electric spindle support (10.4) is fixedly connected on bottom plate (3) and after grinding wheel unit (6)
Side, electro spindle (10.2) front end are fixedly connected electro spindle terminal pad (10.1), electro spindle terminal pad (10.1) and grinding wheel unit (6)
Grinding wheel spindle terminal pad (6.8) flexible connected, electro spindle (10.2) → grinding wheel spindle (6.7) make grinding wheel (6.3) rotate；
In guide wheel cross feed device (11), fixed slide unit plate (11.1) is fixedly connected on bottom plate (3), two article of the 4th guide rail
(11.4) it is fixedly connected respectively in the rear and front end groove above fixed slide unit plate (11.1), the fixed connection of air cylinder support (11.2)
It is connected on the right end of fixed slide unit plate (11.1), cylinder (11.3) is fixedly connected on air cylinder support (11.2)；
In guide wheel driver (12), the front and rear sides that third sliding block (12.15) is fixedly connected below slide plate (12.9) are simultaneously
It is connected with two the 4th guide rails (11.4) in guide wheel cross feed device (11), fine motion slide plate (12.10) is fixedly connected in cunning
Above, wheel bracket foreboard (12.3) and wheel bracket back plate (12.6) are fixedly connected respectively in fine motion slide plate plate (12.9)
(12.10) front and rear sides above, guide wheel (12.1) are sleeved among guide wheel shaft (12.2), and guide wheel shaft (12.2) is connected in guide wheel
In holder foreboard (12.3) and wheel bracket back plate (12.6) upper left supported hole, driving wheel (12.12) is located at guide wheel
(12.1) right and 2-3mm on the upper side, driving wheel (12.12) are connected on the output shaft of the second servo motor (12.7), and second
The rear that servo motor (12.7) is fixedly connected by motor mounting plate (12.13) in wheel bracket back plate (12.6), motor
Upper adjustment plate (12.4) is fixedly connected in the top of wheel bracket foreboard (12.3) and wheel bracket back plate (12.6), upper plate adjustment
Screw (12.14) is spun in the screw hole of motor upper adjustment plate (12.4) and its head withstands on the upper end of motor mounting plate (12.13),
By rotating the upper and lower position of upper plate adjusting screw (12.14) fine-tuning motor mounting plate (12.13), motor side adjustment plate
(12.5) it is fixedly connected in the right side of wheel bracket foreboard (12.3) and wheel bracket back plate (12.6), side plate adjusting screw
(12.11) it is spun in the screw hole of motor side adjustment plate (12.5) and its head withstands on the right end of motor mounting plate (12.13), passes through
The left and right position of rotating side panel adjusting screw (12.11) fine-tuning motor mounting plate (12.13), the second servo motor (12.7) drive
Dynamic driving wheel (12.12) rotation, since driving wheel (12.12) and guide wheel (12.1) are tangent, driving wheel (12.12) is by rubbing
Wipe power drive guide wheel (12.1) rotate, cylinder connecting plate (12.8) be fixedly connected the right side of slide plate (12.9) and with guide wheel transverse direction
The extension bar of cylinder (11.3) in feed arrangement (11) is connected, the extended and retracted drive guide wheel of cylinder (11.3) extension bar
(12.1) it moves left and right；
In wheel device (13), support wheel pedestal (13.1) is fixedly connected on bottom plate (3), and support wheel support (13.3) is logical
It crosses adjustment plate (13.2) to be fixedly connected in the upper right side of support wheel pedestal (13.1), support wheel (13.4) is sleeved on support wheel shaft
(13.5) intermediate, support wheel shaft (13.5) both ends are connected in the supported hole of support wheel support (13.3) rear and front end；
In graphite wheel sharpening device (15), graphite wheel dressing seat (15.10) is fixedly connected on a left side for grinding wheel dressing pedestal (9.6)
Side, blade (15.1) are fixed on by blade clamping plate (15.2) on blade slide plate (15.3), blade slide plate (15.3) right it is front and back
Both sides are fixedly connected two graphite wheel dressing sliding blocks (15.13), two graphite wheel dressing sliding blocks (15.13) and are fixedly connected in stone
The graphite wheel dressing guide rail (15.4) of front and rear sides is connected on ink wheel dressing seat (15.10), in the upper end of blade slide plate (15.3)
Between be fixedly connected graphite wheel dressing nut seat (15.12), graphite wheel dressing feed screw nut (15.11) is sleeved on graphite wheel dressing spiral shell
It is connected in the endoporus of female seat (15.12) and with graphite wheel dressing leading screw (15.5), end cap on graphite wheel dressing leading screw (15.5)
In the bearing hole of graphite wheel dressing bearing block (15.6), graphite wheel dressing bearing block (15.6) is fixedly connected to be repaiied in graphite wheel
On sharp seat (15.10), graphite wheel dressing leading screw (15.5) upper end passes through graphite wheel dressing shaft coupling (15.7) and graphite wheel dressing
The output shaft of motor (15.9) is connected, and graphite wheel dressing motor (15.9) is fixedly connected in graphite wheel dressing electric machine support (15.8)
Top, graphite wheel dressing motor (15.9) → graphite wheel dressing leading screw (15.5) → graphite wheel dressing feed screw nut (15.11)
→ blade slide plate (15.3) band cutting blade (15.1) moves up and down；
The outer rim of grinding wheel (6.3) and guide wheel (12.1) is first accomplished into the profile opposite with small roller (14) profile before grinding, i.e., it is small
On the one hand roller (14) convexity shape face constitutes a pair of of conjugate surface, another aspect and and guide wheel with grinding wheel (6.3) working face
(12.1) working face constitutes a pair of of conjugate surface, and cylinder (11.3) driving guide wheel (12.1) F.F. is simultaneously tangent with small roller (14),
Make to have between guide wheel (12.1) and grinding wheel (6.3) and small roller (14) is put between the gap and is in again when certain interval
On support wheel (13.4), adjustment support wheel (13.4) highly makes center and grinding wheel (6.3) centre-height of support small roller (14)
Unanimously, the position of adjustment guide wheel (12.1) makes center of the centre-height than small roller (14) and the grinding wheel (6.3) of guide wheel (12.1)
The line of centres be higher by 2-3mm, pay attention to increase this highly when being ground small roller (14), the stress of its support wheel (13.4) can increase
Greatly, the deviation from circular from of grinding small roller (14) tends to increase；The reduction height spends and small roller (14) can be caused in grinding area
In beat；
Electro spindle (10.2) driving grinding wheel (6.3) rotates when grinding, in motor (12.7) → driving wheel (12.12) → guide wheel
(12.1) grinding wheel (6.3) and guide wheel (12.1) is made to rotate in same direction under rotating, guide wheel (12.1) peripheral speed is controlled in 20-30m/
Min, and the peripheral speed of abrasive grinding wheel (6.3) is 60-80 times of guide wheel (12.1), small roller (14) is in grinding wheel (6.3) and leads
Take turns (12.1) friction force effect under passively rotate, due to the contact area of small roller (14) and abrasive grinding wheel (6.3) in the presence of compared with
The stability and high efficiency rate mill of small roller (14) can be realized to realize the grinding removal of its material in big linear differential in cycles
Cut processing；
At the same time, the grinding wheel (6.3) in above-mentioned grinding process will produce abrasion, blocking or adhesion, easily lead to grinding
Power increases or grinding temperature increases, and influence is will produce on grinding quality, to make grinding wheel (6.3) remain good grindability
It can, it is necessary to online repairing type or online dressing are periodically carried out to it；
Graphite wheel (5.1) is first accomplished into the profile opposite with grinding wheel (6.3) before online repairing type, by grinding wheel (6.3) be connected into it is positive and
Graphite wheel (5.1) is connected into cathode, when online repairing type grinding wheel (6.3) relatively rotated with graphite wheel (5.1) and to grinding wheel (6.3) with
Water-soluble emulsion is sprayed between graphite wheel (5.1), by adjusting voltage and pulsewidth grinding wheel (6.3) and graphite wheel (5.1) it
Between generate pulse spark electric discharge, galvanic corrosion is carried out to the metallic bond on grinding wheel (6.3), new abrasive grain is made to expose metallic bond
Surface simultaneously forms the profile required for grinding small roller (14), you can reaches the purpose of online repairing type；
When the increase of its surface abrasion contour shape error needs dressing after graphite wheel (5.1) works a period of time, dressing blade
(15.1) it is moved down under the drive of graphite wheel dressing motor (15.9), dressing is carried out to high-speed rotating graphite wheel (5.1),
Since the contour shape of dressing blade (15.1) has accomplished the profile opposite with profile needed for graphite wheel (5.1), can incite somebody to action
The profile of graphite wheel (5.1) accomplishes required shape；
The inner ring surface of dressing copper ring (7.1) electrode is first accomplished into the profile opposite with forming grinding wheel (6.3) before online dressing, by sand
Wheel (6.3) is connected into anode and dressing copper ring (7.1) is connected into cathode and is adjusted between dressing copper ring (7.1) and grinding wheel (6.3)
Gap, the gap is electrolysed gap condition necessary to online dressing, when dressing grinding wheel (6.3) rotate and to grinding wheel (6.3) and
Dressing copper ring injects electrolyte between (7.1), and cell reaction, grinding wheel when pre- dressing starts just occurs in the case that powering on
(6.3) metallic bond in is detached under electrolysis, and simultaneous oxidation object is stacked on grinding wheel (6.3) surface and forms tool
There are the oxides-containing iron film layer of insulating property (properties), the Faradaic current that oxide film layer to act on metallic bond gradual
Reduction causes its electrolysis to weaken, to avoid metallic bond excessive bleed and dressing grinding wheel (6.3) to profile；
The abrasive grain generation for continuing and making its surface for being ground small roller (14) process with grinding wheel (6.3) is worn, and grinding wheel at this time
(6.3) oxide film layer on surface continues gradually to be removed again, causes the increase of Faradaic current again, electrolysis is again
Start and the metallic bond in grinding wheel (6.3) is promoted to be detached from again, newly-generated oxide film layer makes to act on again
Faradaic current on metallic bond, which continuously decreases, causes its electrolysis to weaken, and avoids the excessive bleed of metallic bond again
And dressing grinding wheel (6.3) is to profile；Online dressing in cycles has remained grinding wheel (6.3) to profile, pole
The big high-efficiency grinding processing for improving small roller (14).
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Cited By (3)
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| CN109202706A (en) * | 2018-09-07 | 2019-01-15 | 大连理工大学 | A kind of bistrique with on-line purification function |
| CN109940479A (en) * | 2019-02-28 | 2019-06-28 | 洛阳立博数控科技有限公司 | A method of band buffers self-positioning taper roller on ball cardinal plane grinding machine |
| CN114193254A (en) * | 2021-12-23 | 2022-03-18 | 洛阳汇工轴承科技有限公司 | Large-scale roller base face grinding frock |
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| CN105751019A (en) * | 2016-04-14 | 2016-07-13 | 武汉协志精密科技股份有限公司 | Precision numerical control small-hole interior conical surface grinder |
| CN107363691A (en) * | 2017-07-20 | 2017-11-21 | 洛阳立博数控科技有限公司 | A kind of method for realizing aligning roller both ends of the surface while grinding using grinding machine is made by oneself |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3481319A (en) * | 1966-11-15 | 1969-12-02 | Bryant Grinder Corp | Rotary truing device for grinding wheels |
| CN203600015U (en) * | 2013-07-24 | 2014-05-21 | 濮阳贝英数控机械设备有限公司 | Grinding device for bearing inner ring rib and thrust ball bearing roll way |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109202706A (en) * | 2018-09-07 | 2019-01-15 | 大连理工大学 | A kind of bistrique with on-line purification function |
| CN109940479A (en) * | 2019-02-28 | 2019-06-28 | 洛阳立博数控科技有限公司 | A method of band buffers self-positioning taper roller on ball cardinal plane grinding machine |
| CN109940479B (en) * | 2019-02-28 | 2020-02-21 | 洛阳立博数控科技有限公司 | Method for grinding tapered roller by ball-base-surface grinding machine through self-positioning device with buffer |
| CN114193254A (en) * | 2021-12-23 | 2022-03-18 | 洛阳汇工轴承科技有限公司 | Large-scale roller base face grinding frock |
| CN114193254B (en) * | 2021-12-23 | 2023-12-26 | 洛阳汇工轴承科技有限公司 | Large-scale roller basal plane grinding frock |
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| CN108453626B (en) | 2019-10-25 |
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