CN108453626B - A kind of grinding small roller and the self-acting grinding machine application method with repairing type dressing grinding wheel - Google Patents

A kind of grinding small roller and the self-acting grinding machine application method with repairing type dressing grinding wheel Download PDF

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Publication number
CN108453626B
CN108453626B CN201810266121.9A CN201810266121A CN108453626B CN 108453626 B CN108453626 B CN 108453626B CN 201810266121 A CN201810266121 A CN 201810266121A CN 108453626 B CN108453626 B CN 108453626B
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China
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wheel
dressing
graphite
grinding
grinding wheel
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CN108453626A (en
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张洛平
李华
张晓蕙
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Luoyang Libo Numerical Control Technology Co Ltd
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Luoyang Libo Numerical Control Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B53/00Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/06Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
    • B24B53/07Devices 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B53/00Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/12Dressing tools; Holders therefor
    • B24B53/14Dressing tools equipped with rotary rollers or cutters; Holders therefor

Abstract

A kind of grinding small roller and the self-acting grinding machine application method with 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 be with 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 is good so that quality is reliable and stable, with adjustment, installation, maintenance, feature easy to use.

Description

A kind of grinding small roller and the self-acting grinding machine application method with repairing type dressing grinding wheel
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 technique
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 high production efficiency, automation and mass production easy to accomplish, 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 With the error of grinding wheel axis, the error of workpiece and movement velocity, the unstability of supporting plate work face contact and grinding wheel and guide wheel 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 technical requirements 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.
Summary of the invention
A kind of self-acting grinding machine use for above situation, the present invention provides grinding small roller and with repairing type dressing grinding wheel Method, for the self-acting grinding machine using a kind of novel centerless grinding bearing small roller, small roller can while grinding On-line amending grinding wheel, can also be with electrolytic in-process dressing grinding wheel, and which improves the grinding-shaping precision of small roller, and are ground Efficiency is greatly improved high and at low cost, since small roller grinding dimensional uniformity is good so that quality is reliable and stable, has adjustment, pacifies Dress, maintenance, feature easy to use.
For achieving the above object, the present invention adopts the following technical scheme:
A kind of grinding small roller and the self-acting grinding machine application method with repairing type dressing grinding wheel, self-acting grinding machine includes lathe bed, big Fibrous gypsum table top, graphite skateboard driving device, graphite wheel drive unit, grinding wheel unit, dressing copper ring device, vertical is repaired bottom plate Sharp skate apparatus, 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 stone Black skateboard driving device contain the fixed slide unit plate of graphite wheel, the first stepper motor, motor installation bent plate, 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, Gland, graphite wheel bucket press from both sides upper cover, rolling bearing, graphite wheel shaft bearing sleeve rear pressing cover, locking screw before lip packing, graphite wheel shaft bearing sleeve Female, 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 Bearing holder (housing, cover), motor supporting 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 bracket 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 sliding 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, 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 Adjustment plate, motor side adjustment plate, wheel bracket back plate, the second servo motor, cylinder connecting plate, cunning on wheel support foreboard, motor 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 lead 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 repaired 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 by being fixed on lathe bed gussets adjust marble countertop Left and right, front-rear position on lathe bed, bottom plate are fixedly connected on marble countertop, the fixed connection of graphite skateboard driving device It connects in the left end of bottom plate, graphite wheel drive unit is connected in above graphite skateboard driving device, and grinding wheel unit is fixedly connected Front and it is located on the right side of graphite skateboard driving device in bottom plate, dressing copper ring device, vertical dressing skate apparatus and vertical repairs Sharp driving device is fixedly connected above grinding wheel unit, and electric main shaft device is fixedly connected at bottom plate rear and is located at grinding wheel unit Dead astern, guide wheel cross feed device are fixedly connected in bottom plate right end and are located at the right side of grinding wheel unit, guide wheel driver connection Connect above guide wheel cross feed device, wheel device be fixedly connected on bottom plate and be located at grinding wheel unit and guide wheel laterally into To between device, small roller is placed in wheel device, and graphite wheel sharpening device is fixedly connected in vertical dressing driving device Left side;
In graphite skateboard driving device, it is fixedly connected with the fixed slide unit plate of reeded graphite wheel on a left side for bottom plate End, motor installation bent plate are fixedly connected in the left side of the fixed slide unit plate of graphite wheel, and the first stepper motor is coupled to be fixed on motor The left end of bent plate is installed, the output shaft of the first stepper motor is coupled by shaft coupling with first ball screw, in the first ball wire Bearing block is socketed on thick stick, bearing block is fixedly connected in intermediate groove on the fixed slide unit plate of graphite wheel, the first stepper motor First ball screw rotation is driven, the second guide rail and the first guide rail are fixedly connected respectively two before and after the fixed slide unit plate of graphite wheel Side;
In graphite wheel drive unit, graphite wheel is connected and fixed by washer and nut in graphite axle ends, graphite wheel Belt sheave structure is designed as in the middle part of axis, the connection of graphite wheel shaft rear end is locked there are four rolling bearing and with locking nut, rolled Bearing is connected in inside graphite wheel shaft bearing sleeve, and graphite wheel shaft bearing sleeve presss from both sides upper cover by graphite wheel bucket and graphite wheel bucket grips connection The gland in their inner hole and before graphite wheel shaft bearing sleeve front end is fixedly connected graphite wheel shaft bearing sleeve is connect, in graphite wheel shaft bearing sleeve Couple lip packing between preceding gland and graphite wheel shaft, is pressed after graphite wheel shaft bearing sleeve rear end is fixedly connected graphite wheel shaft bearing sleeve Lid, graphite wheel bucket folder are connected and fixed by insulation board in the front end of graphite skidding platen, the fixed connection in the left end of graphite skidding platen Connect motor supporting plate, motor supporting plate rear is fixedly connected first servo motor, and the output shaft of first servo motor passes through key and graphite Turbin generator shaft pulley couples, and installs belt, graphite 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 skidding platen, and the first feed screw nut is fixedly connected in graphite feed screw nut In the hole of seat lower section, the first feed screw nut and the first ball screw of graphite skateboard driving device are screwed, graphite skidding platen Below both ends be fixedly connected two the first sliding blocks, two the first sliding blocks the second guide rail with graphite skateboard driving device respectively It is connected with the first guide rail, graphite wheel is made by first servo motor → graphite turbin generator shaft pulley → belt → graphite wheel shaft rotation Rotation, the first stepper motor → first ball screw, which rotates the → the first feed screw nut, moves left and right graphite skidding platen;
In grinding wheel unit, grinding wheel is sleeved in the outer rim of grinding wheel tapered sleeve and is coupled by grinding wheel gland with grinding wheel tapered sleeve, The inner conical surface of grinding wheel tapered sleeve couples and is fixed with grinding wheel locking nut, grinding wheel spindle set with the cooperation of the male cone (strobilus masculinus) on grinding wheel spindle head In the bearing hole among emery wheel bracket and grinding wheel spindle bracket upper cover, emery wheel bracket is fixedly connected by insulation board in bottom plate On, the position for adjusting grinding wheel can guarantee that grinding wheel center is concordant with same high and two-wheeled the front surface 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, the fixed connection of dressing copper ring strip of paper used for sealing It connects at dressing copper ring rear, elbow is connected in above dressing copper ring strip of paper used for sealing, and electrolyte is by elbow injection dressing copper ring strip of paper used for sealing Chamber flows into the inner cavity of dressing copper ring again and sprays from the spout on the inner ring surface of dressing copper ring;
In vertical dressing skate apparatus, bakelite plate be fixedly connected dressing slide plate front and in dressing copper ring device The connection of dressing copper ring extension bar, dressing feed screw nut seat is fixedly connected at the upper end rear of dressing slide plate, the second feed screw nut connection It connects 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 bracket on lid, and third is led Rail is fixedly connected in the left and right sides of grinding wheel dressing pedestal, and electric machine support is fixedly connected in the upper end of grinding wheel dressing pedestal, and second Stepper motor is connected in the top of electric machine support and is coupled by shaft coupling with the second ball-screw, the upper end of the second ball-screw It is sleeved in the bearing hole of lead screw shaft bearings, lead screw shaft bearings are fixedly connected on grinding wheel dressing pedestal, vertical dressing slide plate dress The second feed screw nut in setting is screwed with the second ball-screw, and second stepper motor → second ball-screw rotates the → the second lead screw Nut → dressing feed screw nut seat → dressing slide plate → bakelite plate → dressing copper ring extension bar moves up and down dressing copper ring, to adjust Gap between dressing 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 inner hole, Electric spindle support is fixedly connected on bottom plate and is located at the rear of grinding wheel unit, and electro spindle front end is fixedly connected electro spindle connection The grinding wheel spindle terminal pad flexible connected of disk, electro spindle terminal pad and grinding wheel unit, electro spindle → grinding wheel spindle rotate grinding wheel;
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 fixed respectively to be joined It connects in the 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 is solid Surely 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 traverse feed Two the 4th guide rails in device are connected, and fine motion slide plate is fixedly connected on slide plate, after wheel bracket foreboard and wheel bracket Plate is fixedly connected the front and rear sides above fine motion slide plate respectively, and guide wheel is sleeved among guide wheel shaft, and guide wheel shaft is connected in guide wheel In bracket 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 It is connected 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 On rear, adjustment plate is fixedly connected in the top of wheel bracket foreboard and wheel bracket back plate, upper plate adjusting screw on motor It is spun in the screw hole of adjustment plate on motor and its head withstands on the upper end of motor mounting plate, it can be micro- by rotation upper plate adjusting screw The upper and lower position of motor mounting plate is adjusted, motor side adjustment plate is fixedly connected on the right side of wheel bracket foreboard and wheel bracket back plate Side, 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 rotation The left-right position of the fine-tuning motor mounting plate of side plate adjusting screw, the second servo motor drives driving wheel rotation, due to driving wheel It is tangent with guide wheel, thus driving wheel by frictional force drive guide wheel rotate, cylinder connecting plate be fixedly connected the right side of slide plate simultaneously It is connected with the extension bar of the cylinder in guide wheel cross feed device, extended and retracted drive guide wheel of cylinder extension bar or so moves It is dynamic;
In wheel device, support wheel pedestal is fixedly connected on bottom plate, and wheel support is supported to join by adjusting plate is fixed It connects in the upper right side of support wheel pedestal, support wheel is sleeved among support wheel shaft, and support wheel shaft both ends are connected in support wheel support In the supported hole of rear and front end;
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 knife On blade slide plate, the front and rear sides of blade slide plate right are fixedly connected two graphite wheel dressing sliding blocks piece Boards wall, and two Graphite wheel dressing sliding block is 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 Upper end among be fixedly connected graphite wheel dressing nut seat, graphite wheel dressing feed screw nut is sleeved on graphite wheel dressing nut seat It is connected in inner hole and with graphite wheel dressing lead screw, graphite wheel dressing lead screw upper end is sleeved on the bearing of graphite wheel dressing bearing block In hole, graphite wheel dressing bearing block is fixedly connected on graphite wheel dressing seat, and graphite wheel dressing lead screw upper end is repaired by graphite wheel The output shaft of sharp shaft coupling and graphite wheel dressing motor is connected, and graphite wheel dressing motor is fixedly connected in graphite wheel dressing motor branch The top of frame, graphite wheel dressing motor → graphite wheel dressing lead screw → graphite wheel dressing feed screw nut → blade slide plate band cutting blade It moves up and down;
The outer rim of grinding wheel and guide wheel is first accomplished to the profile opposite with small roller profile, i.e. small roller convexity shape face before grinding On the one hand a pair of of conjugate surface is constituted with stone face, on the other hand constitutes a pair of of conjugate surface, gas with guide wheel working face again Cylinder driving guide wheel F.F. is simultaneously tangent with small roller, is again put in small roller when making between guide wheel and grinding wheel with certain interval described Between gap and on support wheel, adjustment support wheel height makes to support the center of small roller consistent with grinding wheel centre-height, adjusts The position of whole guide 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 Highly when being ground small roller, the stress of its support wheel be will increase for this, and the deviation from circular from for being ground small roller tends to increase;Reducing should Height spends and will lead to small roller beats in grinding area;
Electro spindle driving grinding wheel rotation when grinding keeps grinding wheel and guide wheel in the same direction under motor → driving wheel → guide wheel rotation 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, small roller It is passively rotated under the effect of the frictional force of grinding wheel and guide wheel, since there are biggish lines 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 that the grinding of its material removes in speed difference in cycles;
At the same time, the grinding wheel in above-mentioned grinding process can generate abrasion, blocking or adhesion, easily lead to grinding force Increase or grinding temperature increase, grinding quality can be had an impact, to make grinding wheel remain good grinding performance, it is necessary to Timing carries out online repairing type or online dressing 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 Cathode, grinding wheel and graphite wheel relatively rotate and to water-soluble emulsion is sprayed between grinding wheel and graphite wheel when online repairing type, pass through Adjustment voltage and pulsewidth generate pulse spark electric discharge between grinding wheel and graphite wheel, carry out electricity to the metallic bond on grinding wheel Erosion makes new abrasive grain expose metallic bond surface and forms profile required for grinding small roller, that is, can reach online repairing type Purpose;
When the increase of its surface abrasion chamfered shape error needs dressing to graphite wheel after a period of work, dressing blade exists It is moved down under the drive of graphite wheel dressing motor, dressing is carried out to high-speed rotating graphite wheel, due to the profile of dressing blade Shape has accomplished 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, the gap is electrolysed online dressing Required gap condition, grinding wheel rotates and injects electrolyte between grinding wheel and dressing copper ring when dressing, is powering on situation Lower that cell reaction just occurs, metallic bond when pre- dressing starts in grinding wheel is detached from, simultaneous oxidation object under electrolysis It is stacked on wheel face and forms the oxides-containing iron film layer with insulating property (properties), oxide film layer to act on gold Faradaic current on category bonding agent, which gradually decreases, causes its electrolysis to weaken, to avoid the excessive bleed of metallic bond simultaneously Dressing grinding wheel is to profile;As the abrasive grain for continuing and making its surface of wheel grinding small roller process generates abrasion, And the oxide film layer continuation of wheel face at this time is gradually removed, and causes the increase of Faradaic current again, electrolysis Start again and the metallic bond in grinding wheel is promoted to be detached from again, newly-generated oxide film layer makes to act on again Faradaic current on metallic bond, which gradually decreases, causes its electrolysis to weaken, and avoids the excessive bleed of metallic bond again And dressing grinding wheel is to profile;Online dressing in cycles has remained that grinding wheel to profile, greatly improves small The high-efficiency grinding of roller is processed.
Due to using technical solution as described above, the present invention generates following good effect:
1, the present invention is a kind of high-precision small roller self-acting grinding machine, and formed precision is high, high-efficient and at low cost, and quality is stablized Reliably, dimensional uniformity is good, has the characteristics that adjustment, installation, maintenance, easy to use.
2, self-acting grinding machine of the invention is using a kind of novel centerless grinding method.In grinding, one side of small roller convexity shape face Face and stone face constitute a pair of of conjugate surface, on the other hand constitute a pair of of conjugate surface with guide wheel working face again.This is high-precision Spending small roller automatic grinding device mainly includes grinding wheel, guide wheel, support wheel and small roller workpiece.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 frictional force effect between grinding wheel, guide wheel, small roller The grinding removal of its material is realized there are biggish linear differential with the contact area of abrasive grinding wheel.In order to guarantee small roller The circularity of outer circle, small roller center and grinding wheel center are the same as 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 then will lead to Small roller grinding machine is beated in grinding area.
3, grinding wheel is driven by electro spindle, due to electro spindle revolving speed with higher, can make grinding wheel tool when being ground small roller There is higher linear velocity, to guarantee grinding efficiency, the precision and quality of small roller.
4, trimming device of the invention uses graphite electrode edm forming dressing method.Finishing before first by graphite wheel accomplish with 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 electric discharge carries out galvanic corrosion to the metallic bond on grinding wheel, so that new abrasive grain is exposed metallic bond surface and is formed Certain projecting height can reach the purpose of integer, this mode formed precision is high, 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, cell reaction, sand when pre- dressing starts occur to injection electrolyte between grinding wheel and dressing copper ring and when powering on Metal bonding agent 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 gradually 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, oxide film layer is also gradually removed at the same time, 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 chamfered 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.
Detailed description of the invention
Fig. 1 is front view structure simplified schematic diagram of the 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 diagram of Fig. 1.
Fig. 5 is the D-D section view partial structurtes simplified schematic diagram of Fig. 1.
Fig. 6 is the A-A section view partial structurtes simplified schematic diagram of Fig. 1.
In above-mentioned figure: 1- lathe bed;2- marble countertop;3- bottom plate;4- graphite skateboard driving device;4.1- graphite wheel is solid Determine slide unit plate;The first stepper motor of 4.2-;4.3- motor installs bent plate;4.4- first ball screw;The first guide rail of 4.5-;4.6- Bearing block;4.7- shaft coupling;The second guide rail of 4.8-;5- graphite wheel drive unit;5.1- graphite wheel;5.2- washer;5.3- graphite Wheel shaft;5.4- nut;5.5- lip packing;Gland before 5.6- graphite wheel shaft bearing sleeve;5.7- graphite wheel bucket presss 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 bucket folder;5.12- graphite skidding platen; 5.13- the first sliding block;5.14- the first feed screw nut;5.15- graphite feed screw nut seat;5.16- insulation board;5.17- graphite wheel shaft Bearing sleeve;5.18- motor supporting plate;5.19- first servo motor;5.20- graphite turbin generator shaft pulley;5.21- belt;6- grinding wheel dress It sets;6.1- insulation board;6.2- emery wheel bracket;6.3- grinding wheel;6.4- grinding wheel gland;6.5- grinding wheel locking nut;6.6- grinding wheel cone Set;6.7- grinding wheel spindle;6.8- grinding wheel spindle terminal pad;6.9- grinding wheel spindle bracket upper cover;7- dressing copper ring device;7.1- repairing Sharp copper ring;7.2- dressing copper ring extension bar;7.3- dressing copper ring strip of paper used for sealing;7.4- elbow;The vertical dressing skate apparatus of 8-;8.1- bakelite Plate;8.2- dressing slide plate;8.3- dressing feed screw nut seat;The second feed screw nut of 8.4-;The second sliding block of 8.5-;The vertical dressing of 9- drives Dynamic device;The second ball-screw 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 pedestal;9.7- third guide rail;10- electric main shaft device;10.1- electro spindle terminal pad;10.2- electro spindle; 10.3- electric spindle support upper cover;10.4- electric spindle support;11- guide wheel cross feed device;11.1- fixes slide unit plate;11.2- Air cylinder support;11.3- cylinder;The 4th guide rail of 11.4-;12- guide wheel driver;12.1- guide wheel;12.2- guide wheel shaft;12.3- Wheel bracket foreboard;Adjustment plate on 12.4- motor;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 plate;12.10- fine motion slide plate;12.11- side plate adjusting screw;12.12- drives Driving wheel;12.13- motor mounting plate;12.14- upper plate adjusting screw;12.15- third sliding block;13- wheel device;13.1- branch Support wheel pedestal;13.2- adjustment plate;13.3- supporting wheel support;13.4- support wheel;13.5- supporting wheel shaft;14- small roller;15- Graphite wheel sharpening device;15.1- blade;15.2- blade clamping plate;15.3- blade slide plate;15.4- graphite wheel dressing guide rail; 15.5- graphite wheel dressing lead screw;15.6- graphite wheel dressing bearing block;15.7- graphite wheel dressing shaft coupling;15.8- graphite wheel is repaired Sharp electric machine support;15.9- graphite wheel dressing motor;15.10- graphite wheel dressing seat;15.11- graphite wheel dressing feed screw nut; 15.12- graphite wheel dressing nut seat;15.13- graphite wheel dressing sliding block;16- gusset.
Specific embodiment
The present invention is a kind of grinding small roller and the self-acting grinding machine application method with repairing type dressing grinding wheel, passes through self-acting grinding machine Make small roller while grinding can on-line amending grinding wheel, can also thus be improved with electrolytic in-process dressing grinding wheel The grinding-shaping precision of small roller, and grinding efficiency is greatly improved and at low cost, since small roller is ground dimensional uniformity It is good so that quality is reliable and stable, have 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 repaired 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 Sub 14, graphite wheel sharpening device 15, gusset 16.
Contain the fixed slide unit plate 4.1 of graphite wheel, the first stepper motor 4.2, motor installation in graphite skateboard driving device 4 Bent plate 4.3, 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 press from both sides 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 press from both sides 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 supporting 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 bracket 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, 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 adjustment plate on guide wheel 12.1, guide wheel shaft 12.2, wheel bracket foreboard 12.3, motor 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 in graphite wheel sharpening device 15 containing blade 15.1, blade clamping plate 15.2, blade slide plate 15.3, graphite wheel dressing Rail 15.4, graphite wheel dressing lead screw 15.5, graphite wheel dressing bearing block 15.6, graphite wheel dressing shaft coupling 15.7, graphite wheel are repaired 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 when certain interval and small roller 14 to be put between the gap again and on the support wheel 13.4, adjust support wheel 13.4 height make to support the center of 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;Reduce the height It spends and will lead to small roller 14 and beat in grinding area.
Electro spindle 10.2 drives grinding wheel 6.3 to rotate when grinding, at 12.1 turns of 12.7 → driving wheel of motor, 12.12 → guide wheel Rotate in same direction grinding wheel 6.3 and guide wheel 12.1 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 effect of the frictional force of grinding wheel 6.3 and guide wheel 12.1 of small roller 14 Dynamic rotation, since there are biggish 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 can generate abrasion, blocking or adhesion, easily lead to mill It cuts power increase or grinding temperature increases, grinding quality can be had an impact, 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 incite somebody to action Graphite wheel 5.1 is connected into cathode, and grinding wheel 6.3 and graphite wheel 5.1 relatively rotate and to grinding wheel 6.3 and graphite wheel 5.1 when online repairing type Between spray into water-soluble emulsion, pulse spark is generated between grinding wheel 6.3 and graphite wheel 5.1 by adjusting voltage and pulsewidth and is put Electricity carries out galvanic corrosion to the metallic bond on grinding wheel 6.3, so that new abrasive grain is exposed metallic bond surface and forms the small rolling of grinding Profile required for son 14, that is, can reach the purpose of online repairing type.The formed precision of this online repairing type mode is high, it is high-efficient and At low cost, 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 chamfered shape error needs dressing to graphite wheel 5.1 after a period of work, dressing knife Piece 15.1 moves down under the drive of graphite wheel dressing motor 15.9, carries out dressing to high-speed rotating graphite wheel 5.1, due to The chamfered 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, when 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 is formed, and there is the iron content of insulating property (properties) to aoxidize Object film layer, the Faradaic current that oxide film layer to act on metallic bond, which gradually decreases, causes its electrolysis to subtract It is weak, to avoid the excessive bleed of metallic bond and dressing grinding wheel 6.3 is 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 again, electrolysis starts again and promotes the gold in grinding wheel 6.3 again Belong to bonding agent to be detached from, newly-generated oxide film layer gradually decreases the Faradaic current acted on metallic bond 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 the self-acting grinding machine application method with repairing type dressing grinding wheel, self-acting grinding machine includes lathe bed (1), big Fibrous gypsum 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 angle Plate (16), wherein graphite skateboard driving device (4) containing graphite wheel fixed slide unit plate (4.1), the first stepper motor (4.2), Motor installs bent plate (4.3), first ball screw (4.4), the first guide rail (4.5), bearing block (4.6), shaft coupling (4.7) and the Two guide rails (4.8), graphite wheel drive unit (5) contain graphite wheel (5.1), washer (5.2), graphite wheel shaft (5.3), nut (5.4), gland (5.6), graphite wheel bucket press from both sides upper cover (5.7), rolling bearing before lip packing (5.5), graphite wheel shaft bearing sleeve (5.8), graphite wheel shaft bearing sleeve rear pressing cover (5.9), locking nut (5.10), graphite wheel bucket press from both sides (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), stone Black wheel shaft bearing sleeve (5.17), motor supporting plate (5.18), first servo motor (5.19), graphite turbin generator shaft pulley (5.20) and skin Band (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), sand Take turns 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 bracket 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 lead screw spiral shell Base (8.3), the second feed screw nut (8.4) and the second sliding block (8.5), vertical dressing driving device (9) contain the second ball wire Thick stick (9.1), lead screw shaft bearings (9.2), shaft coupling (9.3), electric machine support (9.4), second stepper motor (9.5), grinding wheel dressing Pedestal (9.6) and third guide rail (9.7), electric main shaft device (10) contain electro spindle terminal pad (10.1), electro spindle (10.2), electricity Spindle carrier upper cover (10.3) and electric spindle support (10.4), guide wheel cross feed device (11) contain fixed slide unit plate (11.1), air cylinder support (11.2), cylinder (11.3) and the 4th guide rail (11.4), guide wheel driver (12) contain guide wheel (12.1), guide wheel shaft (12.2), wheel bracket foreboard (12.3), adjustment plate (12.4) on motor, 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) contain blade (15.1), knife Piece clamping plate (15.2), blade slide plate (15.3), graphite wheel dressing guide rail (15.4), graphite wheel dressing lead 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 wheel dressing feed screw nut (15.11), graphite wheel dressing nut seat (15.12) and graphite wheel dressing sliding block (15.13), the small roller abrasive grinding wheel that self-acting grinding machine uses use cubic boron nitride sand Wheel, cubic boron nitride abrasive wheel is referred to as grinding wheel (6.3), and grinding wheel contains metallic bond in (6.3), 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 fibrous gypsum table top (2) on lathe bed (1), front-rear 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 are located 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 is located 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 on 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), it is fixedly connected with reeded graphite wheel fixed slide unit plate (4.1) in bottom plate (3) left end, motor installation bent plate (4.3) are fixedly connected in the left side of graphite wheel fixed slide unit plate (4.1), the first stepper motor (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 first ball screw (4.4), bearing block (4.6), bearing block are socketed on first ball screw (4.4) (4.6) it is fixedly connected in intermediate groove on graphite wheel fixed slide unit plate (4.1), the first stepper motor (4.2) driving first Ball-screw (4.4) rotation, the second guide rail (4.8) and the first guide rail (4.5) are fixedly connected respectively in the fixed slide unit plate of graphite wheel (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 inner hole 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 covering, it is solid in graphite wheel shaft bearing sleeve (5.17) rear end Surely couple graphite wheel shaft bearing sleeve rear pressing cover (5.9), graphite wheel bucket folder (5.11) is 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 supporting plate (5.18), motor supporting 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) connection, belt sheave structure in the middle part of graphite turbin generator shaft pulley (5.20) and graphite wheel shaft (5.3) it Between belt (5.21) are installed, be fixedly connected graphite feed screw nut seat (5.15) below the right side of graphite skidding platen (5.12), 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 rotates graphite wheel (5.1), the first stepper motor (4.2) → first ball wire Thick stick (4.4) rotation the → the first feed screw nut (5.14) moves left and right graphite skidding platen (5.12);
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 The inner conical surface of grinding wheel tapered sleeve (6.6) connection, 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 bracket upper cover (6.9) in intermediate bearing hole, emery wheel bracket (6.2) is fixedly connected on bottom plate (3) by insulation board (6.1), adjusts grinding wheel (6.3) position can guarantee that grinding wheel (6.3) center and left side graphite wheel (5.1) center are flat with high and two-wheeled front surface Together, the tail portion of grinding wheel spindle (6.7) couples grinding wheel spindle terminal pad (6.8);
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) the second sliding block (8.5) are fixedly connected 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 bracket 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), 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) is screwed with the second ball-screw (9.1), second stepper motor (9.5) → second ball-screw (9.1) the → the second feed screw nut (8.4) → dressing feed screw nut seat (8.3) → dressing slide plate (8.2) → bakelite plate (8.1) is rotated → dressing copper ring extension bar (7.2) moves up and down dressing copper ring (7.1), to adjust between dressing copper ring (7.1) and grinding wheel (6.3) Gap meet the gap condition for being electrolysed online dressing;
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 inner hole, after electric spindle support (10.4) is fixedly connected on bottom plate (3) and is located at 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) are 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) The right end in fixed slide unit plate (11.1) is connect, 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 bracket 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 Servo motor (12.7) passes through the rear that motor mounting plate (12.13) are fixedly connected on 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 adjustment plate on motor (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-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) rotation, cylinder connecting plate (12.8) be fixedly connected slide plate (12.9) right side 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 blade slide plate (15.3) by blade clamping plate (15.2), the front and back of blade slide plate (15.3) right Two 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 inner hole of base (15.12) and with graphite wheel dressing lead screw (15.5), end cap on graphite wheel dressing lead 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 repaired in graphite wheel On sharp seat (15.10), graphite wheel dressing lead 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 lead 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 for supporting small roller (14) Unanimously, center and grinding wheel (6.3) that the position of guide wheel (12.1) makes the centre-height of guide wheel (12.1) than small roller (14) are adjusted 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 for being ground small roller (14) tends to increase;The height is reduced to spend and will lead to small roller (14) in grinding area Bounce;
Electro spindle (10.2) driving grinding wheel (6.3) rotation when grinding, in motor (12.7) → driving wheel (12.12) → guide wheel (12.1) rotate in same direction grinding wheel (6.3) and guide wheel (12.1) 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 The lower passive rotation of frictional force effect for taking turns (12.1), 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 that the grinding of its material removes in big linear differential in cycles Cut processing;
At the same time, the grinding wheel (6.3) in above-mentioned grinding process can generate abrasion, blocking or adhesion, easily lead to grinding Power increases or grinding temperature increases, and can have an impact to 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) and graphite wheel (5.1) relatively rotate 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 profile required for grinding small roller (14), that is, can reach the purpose of online repairing type;
When the increase of its surface abrasion chamfered shape error needs dressing to graphite wheel (5.1) after a period of work, 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), It, can will since the chamfered shape of dressing blade (15.1) has accomplished the profile opposite with profile needed for graphite wheel (5.1) 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 occur when 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 is the oxides-containing iron film layer of insulating property (properties), oxide film layer to act on the Faradaic current on metallic bond gradually Reduction causes its electrolysis to weaken, to avoid the excessive bleed of metallic bond and dressing grinding wheel (6.3) is to profile; It is worn as the abrasive grain for continuing and making its surface of grinding wheel (6.3) grinding small roller (14) process generates, 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 gradually 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 high-efficiency grinding processing of small roller (14) is improved greatly.
CN201810266121.9A 2018-03-28 2018-03-28 A kind of grinding small roller and the self-acting grinding machine application method with repairing type dressing grinding wheel Active CN108453626B (en)

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CN109202706B (en) * 2018-09-07 2020-08-14 大连理工大学 Grinding head with online electrolytic finishing function
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
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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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
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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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
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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